/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_spec3_product08.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.2.0-b8ad66e [2020-10-23 19:55:34,957 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-23 19:55:34,960 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-23 19:55:34,997 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-23 19:55:34,997 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-23 19:55:34,999 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-23 19:55:35,001 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-23 19:55:35,003 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-23 19:55:35,005 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-23 19:55:35,007 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-23 19:55:35,008 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-23 19:55:35,009 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-23 19:55:35,010 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-23 19:55:35,011 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-23 19:55:35,013 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-23 19:55:35,014 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-23 19:55:35,015 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-23 19:55:35,016 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-23 19:55:35,018 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-23 19:55:35,035 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-23 19:55:35,039 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-23 19:55:35,041 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-23 19:55:35,045 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-23 19:55:35,049 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-23 19:55:35,055 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-23 19:55:35,056 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-23 19:55:35,058 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-23 19:55:35,061 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-23 19:55:35,062 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-23 19:55:35,063 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-23 19:55:35,065 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-23 19:55:35,067 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-23 19:55:35,068 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-23 19:55:35,072 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-23 19:55:35,073 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-23 19:55:35,073 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-23 19:55:35,074 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-23 19:55:35,075 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-23 19:55:35,075 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-23 19:55:35,076 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-23 19:55:35,077 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-23 19:55:35,078 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 19:55:35,105 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-23 19:55:35,105 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-23 19:55:35,110 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-23 19:55:35,110 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-23 19:55:35,110 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-23 19:55:35,110 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-23 19:55:35,111 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-23 19:55:35,111 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-23 19:55:35,111 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-23 19:55:35,111 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-23 19:55:35,113 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-23 19:55:35,113 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-23 19:55:35,113 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-23 19:55:35,113 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-23 19:55:35,114 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-23 19:55:35,114 INFO L138 SettingsManager]: * Size of a code block=SingleStatement [2020-10-23 19:55:35,114 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-23 19:55:35,114 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-23 19:55:35,115 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-23 19:55:35,115 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-23 19:55:35,115 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=AcceleratedInterpolation [2020-10-23 19:55:35,115 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-23 19:55:35,116 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2020-10-23 19:55:35,498 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-23 19:55:35,532 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-23 19:55:35,535 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-23 19:55:35,536 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-23 19:55:35,537 INFO L275 PluginConnector]: CDTParser initialized [2020-10-23 19:55:35,538 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec3_product08.cil.c [2020-10-23 19:55:35,621 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/51ddc8898/99d57fb95d1943e1a18da33ee4715358/FLAG920ab6993 [2020-10-23 19:55:36,411 INFO L306 CDTParser]: Found 1 translation units. [2020-10-23 19:55:36,413 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/minepump_spec3_product08.cil.c [2020-10-23 19:55:36,430 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/51ddc8898/99d57fb95d1943e1a18da33ee4715358/FLAG920ab6993 [2020-10-23 19:55:36,667 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/51ddc8898/99d57fb95d1943e1a18da33ee4715358 [2020-10-23 19:55:36,670 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-23 19:55:36,678 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-23 19:55:36,685 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-23 19:55:36,685 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-23 19:55:36,689 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-23 19:55:36,690 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.10 07:55:36" (1/1) ... [2020-10-23 19:55:36,694 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2344d09c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 07:55:36, skipping insertion in model container [2020-10-23 19:55:36,694 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.10 07:55:36" (1/1) ... [2020-10-23 19:55:36,702 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-23 19:55:36,766 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-23 19:55:37,074 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-23 19:55:37,102 INFO L203 MainTranslator]: Completed pre-run [2020-10-23 19:55:37,271 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-23 19:55:37,310 INFO L208 MainTranslator]: Completed translation [2020-10-23 19:55:37,313 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 07:55:37 WrapperNode [2020-10-23 19:55:37,313 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-23 19:55:37,314 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-23 19:55:37,315 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-23 19:55:37,315 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-23 19:55:37,328 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 07:55:37" (1/1) ... [2020-10-23 19:55:37,329 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 07:55:37" (1/1) ... [2020-10-23 19:55:37,347 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 07:55:37" (1/1) ... [2020-10-23 19:55:37,348 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 07:55:37" (1/1) ... [2020-10-23 19:55:37,378 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 07:55:37" (1/1) ... [2020-10-23 19:55:37,388 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 07:55:37" (1/1) ... [2020-10-23 19:55:37,394 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 07:55:37" (1/1) ... [2020-10-23 19:55:37,402 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-23 19:55:37,403 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-23 19:55:37,403 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-23 19:55:37,403 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-23 19:55:37,404 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 07:55:37" (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 19:55:37,498 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-23 19:55:37,499 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-23 19:55:37,499 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2020-10-23 19:55:37,499 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2020-10-23 19:55:37,500 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification3_spec__1 [2020-10-23 19:55:37,500 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2020-10-23 19:55:37,500 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2020-10-23 19:55:37,500 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2020-10-23 19:55:37,500 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2020-10-23 19:55:37,500 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2020-10-23 19:55:37,500 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2020-10-23 19:55:37,501 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2020-10-23 19:55:37,501 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2020-10-23 19:55:37,501 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2020-10-23 19:55:37,501 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2020-10-23 19:55:37,501 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2020-10-23 19:55:37,502 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2020-10-23 19:55:37,502 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2020-10-23 19:55:37,502 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2020-10-23 19:55:37,502 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2020-10-23 19:55:37,503 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2020-10-23 19:55:37,503 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2020-10-23 19:55:37,506 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2020-10-23 19:55:37,506 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2020-10-23 19:55:37,506 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2020-10-23 19:55:37,507 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2020-10-23 19:55:37,507 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2020-10-23 19:55:37,507 INFO L138 BoogieDeclarations]: Found implementation of procedure stopSystem [2020-10-23 19:55:37,507 INFO L138 BoogieDeclarations]: Found implementation of procedure startSystem [2020-10-23 19:55:37,507 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2020-10-23 19:55:37,507 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2020-10-23 19:55:37,508 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2020-10-23 19:55:37,508 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2020-10-23 19:55:37,508 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2020-10-23 19:55:37,508 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2020-10-23 19:55:37,508 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2020-10-23 19:55:37,508 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2020-10-23 19:55:37,508 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-23 19:55:37,509 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-10-23 19:55:37,509 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-10-23 19:55:37,509 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2020-10-23 19:55:37,509 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-23 19:55:37,510 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-10-23 19:55:37,510 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2020-10-23 19:55:37,510 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2020-10-23 19:55:37,510 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2020-10-23 19:55:37,510 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2020-10-23 19:55:37,510 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2020-10-23 19:55:37,511 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification3_spec__1 [2020-10-23 19:55:37,511 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-10-23 19:55:37,511 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-10-23 19:55:37,511 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2020-10-23 19:55:37,511 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-10-23 19:55:37,511 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-10-23 19:55:37,511 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-23 19:55:37,512 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-10-23 19:55:37,512 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2020-10-23 19:55:37,512 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-23 19:55:37,512 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2020-10-23 19:55:37,512 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2020-10-23 19:55:37,513 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-10-23 19:55:37,513 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2020-10-23 19:55:37,513 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2020-10-23 19:55:37,513 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2020-10-23 19:55:37,513 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2020-10-23 19:55:37,513 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2020-10-23 19:55:37,513 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2020-10-23 19:55:37,514 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2020-10-23 19:55:37,514 INFO L130 BoogieDeclarations]: Found specification of procedure startSystem [2020-10-23 19:55:37,514 INFO L130 BoogieDeclarations]: Found specification of procedure stopSystem [2020-10-23 19:55:37,514 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2020-10-23 19:55:37,514 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2020-10-23 19:55:37,514 INFO L130 BoogieDeclarations]: Found specification of procedure test [2020-10-23 19:55:37,514 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2020-10-23 19:55:37,515 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2020-10-23 19:55:37,515 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2020-10-23 19:55:37,515 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2020-10-23 19:55:37,515 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2020-10-23 19:55:37,515 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2020-10-23 19:55:37,516 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2020-10-23 19:55:37,516 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2020-10-23 19:55:37,517 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2020-10-23 19:55:37,517 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2020-10-23 19:55:37,518 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2020-10-23 19:55:37,518 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2020-10-23 19:55:37,518 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2020-10-23 19:55:37,519 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-23 19:55:37,520 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-23 19:55:37,520 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-23 19:55:37,520 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-23 19:55:38,763 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-23 19:55:38,763 INFO L298 CfgBuilder]: Removed 5 assume(true) statements. [2020-10-23 19:55:38,766 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.10 07:55:38 BoogieIcfgContainer [2020-10-23 19:55:38,766 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-23 19:55:38,768 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-23 19:55:38,769 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-23 19:55:38,775 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-23 19:55:38,775 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.10 07:55:36" (1/3) ... [2020-10-23 19:55:38,776 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@304e7999 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.10 07:55:38, skipping insertion in model container [2020-10-23 19:55:38,776 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 07:55:37" (2/3) ... [2020-10-23 19:55:38,777 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@304e7999 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.10 07:55:38, skipping insertion in model container [2020-10-23 19:55:38,777 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.10 07:55:38" (3/3) ... [2020-10-23 19:55:38,779 INFO L111 eAbstractionObserver]: Analyzing ICFG minepump_spec3_product08.cil.c [2020-10-23 19:55:38,791 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:AcceleratedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-23 19:55:38,797 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 5 error locations. [2020-10-23 19:55:38,811 INFO L253 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2020-10-23 19:55:38,840 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-23 19:55:38,840 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-23 19:55:38,840 INFO L379 AbstractCegarLoop]: Compute interpolants for AcceleratedInterpolation [2020-10-23 19:55:38,841 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-23 19:55:38,841 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-23 19:55:38,841 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-23 19:55:38,841 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-23 19:55:38,841 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-23 19:55:38,865 INFO L276 IsEmpty]: Start isEmpty. Operand 294 states. [2020-10-23 19:55:38,887 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 160 [2020-10-23 19:55:38,887 INFO L414 BasicCegarLoop]: Found error trace [2020-10-23 19:55:38,888 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] [2020-10-23 19:55:38,889 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 19:55:38,896 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-23 19:55:38,896 INFO L82 PathProgramCache]: Analyzing trace with hash 222956994, now seen corresponding path program 1 times [2020-10-23 19:55:38,906 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-23 19:55:38,907 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [993020526] [2020-10-23 19:55:38,907 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-23 19:55:38,993 INFO L321 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-10-23 19:55:39,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:55:39,858 WARN L193 SmtUtils]: Spent 379.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2020-10-23 19:55:39,867 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-23 19:55:39,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:55:40,012 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2020-10-23 19:55:40,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:55:40,019 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2020-10-23 19:55:40,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:55:40,024 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2020-10-23 19:55:40,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:55:40,033 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-10-23 19:55:40,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:55:40,040 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2020-10-23 19:55:40,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:55:40,047 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2020-10-23 19:55:40,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:55:40,056 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2020-10-23 19:55:40,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:55:40,116 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 19:55:40,118 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [993020526] [2020-10-23 19:55:40,120 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-23 19:55:40,121 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-23 19:55:40,121 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [872176855] [2020-10-23 19:55:40,127 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-23 19:55:40,127 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-23 19:55:40,141 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-23 19:55:40,142 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-23 19:55:40,144 INFO L87 Difference]: Start difference. First operand 294 states. Second operand 3 states. [2020-10-23 19:55:41,974 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-23 19:55:41,975 INFO L93 Difference]: Finished difference Result 446 states and 535 transitions. [2020-10-23 19:55:41,976 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-23 19:55:41,977 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 159 [2020-10-23 19:55:41,979 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-23 19:55:41,994 INFO L225 Difference]: With dead ends: 446 [2020-10-23 19:55:41,994 INFO L226 Difference]: Without dead ends: 282 [2020-10-23 19:55:41,999 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-23 19:55:42,017 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 282 states. [2020-10-23 19:55:42,160 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 282 to 240. [2020-10-23 19:55:42,161 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 240 states. [2020-10-23 19:55:42,164 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 240 states to 240 states and 260 transitions. [2020-10-23 19:55:42,166 INFO L78 Accepts]: Start accepts. Automaton has 240 states and 260 transitions. Word has length 159 [2020-10-23 19:55:42,167 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-23 19:55:42,167 INFO L481 AbstractCegarLoop]: Abstraction has 240 states and 260 transitions. [2020-10-23 19:55:42,167 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-23 19:55:42,168 INFO L276 IsEmpty]: Start isEmpty. Operand 240 states and 260 transitions. [2020-10-23 19:55:42,172 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 161 [2020-10-23 19:55:42,172 INFO L414 BasicCegarLoop]: Found error trace [2020-10-23 19:55:42,173 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] [2020-10-23 19:55:42,173 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-23 19:55:42,173 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 19:55:42,174 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-23 19:55:42,174 INFO L82 PathProgramCache]: Analyzing trace with hash -1979568266, now seen corresponding path program 1 times [2020-10-23 19:55:42,174 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-23 19:55:42,175 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2101129718] [2020-10-23 19:55:42,175 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-23 19:55:42,180 INFO L321 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-10-23 19:55:42,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:55:42,677 WARN L193 SmtUtils]: Spent 353.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2020-10-23 19:55:42,678 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-23 19:55:42,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:55:42,725 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2020-10-23 19:55:42,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:55:42,731 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2020-10-23 19:55:42,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:55:42,737 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2020-10-23 19:55:42,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:55:42,742 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-10-23 19:55:42,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:55:42,744 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2020-10-23 19:55:42,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:55:42,750 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2020-10-23 19:55:42,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:55:42,755 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2020-10-23 19:55:42,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:55:42,805 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 19:55:42,805 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2101129718] [2020-10-23 19:55:42,806 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-23 19:55:42,806 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-23 19:55:42,806 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1993317549] [2020-10-23 19:55:42,809 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-23 19:55:42,810 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-23 19:55:42,811 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-23 19:55:42,811 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-23 19:55:42,811 INFO L87 Difference]: Start difference. First operand 240 states and 260 transitions. Second operand 4 states. [2020-10-23 19:55:43,793 WARN L193 SmtUtils]: Spent 327.00 ms on a formula simplification that was a NOOP. DAG size: 205 [2020-10-23 19:55:44,798 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-23 19:55:44,799 INFO L93 Difference]: Finished difference Result 350 states and 394 transitions. [2020-10-23 19:55:44,799 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-23 19:55:44,799 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 160 [2020-10-23 19:55:44,801 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-23 19:55:44,809 INFO L225 Difference]: With dead ends: 350 [2020-10-23 19:55:44,810 INFO L226 Difference]: Without dead ends: 265 [2020-10-23 19:55:44,816 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-10-23 19:55:44,817 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 265 states. [2020-10-23 19:55:44,975 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 265 to 230. [2020-10-23 19:55:44,976 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 230 states. [2020-10-23 19:55:44,977 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 230 states to 230 states and 247 transitions. [2020-10-23 19:55:44,978 INFO L78 Accepts]: Start accepts. Automaton has 230 states and 247 transitions. Word has length 160 [2020-10-23 19:55:44,978 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-23 19:55:44,979 INFO L481 AbstractCegarLoop]: Abstraction has 230 states and 247 transitions. [2020-10-23 19:55:44,979 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-23 19:55:44,979 INFO L276 IsEmpty]: Start isEmpty. Operand 230 states and 247 transitions. [2020-10-23 19:55:44,988 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 174 [2020-10-23 19:55:44,989 INFO L414 BasicCegarLoop]: Found error trace [2020-10-23 19:55:44,989 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, 1] [2020-10-23 19:55:44,990 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-23 19:55:44,990 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 19:55:44,991 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-23 19:55:44,991 INFO L82 PathProgramCache]: Analyzing trace with hash 628213075, now seen corresponding path program 1 times [2020-10-23 19:55:44,992 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-23 19:55:44,992 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2145953951] [2020-10-23 19:55:44,992 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-23 19:55:44,996 INFO L321 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-10-23 19:55:45,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:55:45,623 WARN L193 SmtUtils]: Spent 433.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2020-10-23 19:55:45,626 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-23 19:55:45,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:55:45,681 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2020-10-23 19:55:45,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:55:45,690 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2020-10-23 19:55:45,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:55:45,693 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2020-10-23 19:55:45,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:55:45,736 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-10-23 19:55:45,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:55:45,753 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2020-10-23 19:55:45,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:55:45,772 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2020-10-23 19:55:45,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:55:45,775 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 150 [2020-10-23 19:55:45,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:55:45,784 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 160 [2020-10-23 19:55:45,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:55:45,850 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 19:55:45,851 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2145953951] [2020-10-23 19:55:45,852 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-23 19:55:45,852 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-10-23 19:55:45,852 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1439922627] [2020-10-23 19:55:45,854 INFO L461 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-10-23 19:55:45,854 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-23 19:55:45,856 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-10-23 19:55:45,856 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2020-10-23 19:55:45,856 INFO L87 Difference]: Start difference. First operand 230 states and 247 transitions. Second operand 10 states. [2020-10-23 19:55:46,493 WARN L193 SmtUtils]: Spent 293.00 ms on a formula simplification that was a NOOP. DAG size: 204 [2020-10-23 19:55:46,983 WARN L193 SmtUtils]: Spent 354.00 ms on a formula simplification that was a NOOP. DAG size: 207 [2020-10-23 19:55:47,372 WARN L193 SmtUtils]: Spent 368.00 ms on a formula simplification that was a NOOP. DAG size: 210 [2020-10-23 19:55:47,750 WARN L193 SmtUtils]: Spent 329.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2020-10-23 19:55:48,145 WARN L193 SmtUtils]: Spent 366.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2020-10-23 19:55:48,517 WARN L193 SmtUtils]: Spent 341.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2020-10-23 19:55:49,694 WARN L193 SmtUtils]: Spent 311.00 ms on a formula simplification that was a NOOP. DAG size: 205 [2020-10-23 19:55:52,241 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-23 19:55:52,241 INFO L93 Difference]: Finished difference Result 623 states and 728 transitions. [2020-10-23 19:55:52,242 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-10-23 19:55:52,242 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 173 [2020-10-23 19:55:52,243 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-23 19:55:52,248 INFO L225 Difference]: With dead ends: 623 [2020-10-23 19:55:52,248 INFO L226 Difference]: Without dead ends: 508 [2020-10-23 19:55:52,250 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 45 ImplicationChecksByTransitivity, 3.0s TimeCoverageRelationStatistics Valid=104, Invalid=238, Unknown=0, NotChecked=0, Total=342 [2020-10-23 19:55:52,251 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 508 states. [2020-10-23 19:55:52,465 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 508 to 415. [2020-10-23 19:55:52,465 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 415 states. [2020-10-23 19:55:52,467 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 415 states to 415 states and 464 transitions. [2020-10-23 19:55:52,468 INFO L78 Accepts]: Start accepts. Automaton has 415 states and 464 transitions. Word has length 173 [2020-10-23 19:55:52,468 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-23 19:55:52,469 INFO L481 AbstractCegarLoop]: Abstraction has 415 states and 464 transitions. [2020-10-23 19:55:52,469 INFO L482 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-10-23 19:55:52,469 INFO L276 IsEmpty]: Start isEmpty. Operand 415 states and 464 transitions. [2020-10-23 19:55:52,472 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 179 [2020-10-23 19:55:52,473 INFO L414 BasicCegarLoop]: Found error trace [2020-10-23 19:55:52,473 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, 1, 1, 1, 1, 1, 1] [2020-10-23 19:55:52,473 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-23 19:55:52,474 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 19:55:52,474 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-23 19:55:52,474 INFO L82 PathProgramCache]: Analyzing trace with hash -571830235, now seen corresponding path program 1 times [2020-10-23 19:55:52,474 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-23 19:55:52,475 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1076329460] [2020-10-23 19:55:52,475 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-23 19:55:52,478 INFO L321 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-10-23 19:55:52,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:55:52,905 WARN L193 SmtUtils]: Spent 314.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2020-10-23 19:55:52,906 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-23 19:55:52,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:55:52,956 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2020-10-23 19:55:52,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:55:52,958 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2020-10-23 19:55:52,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:55:52,961 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2020-10-23 19:55:52,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:55:52,963 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-10-23 19:55:52,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:55:52,984 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2020-10-23 19:55:52,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:55:52,987 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 145 [2020-10-23 19:55:52,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:55:52,990 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 155 [2020-10-23 19:55:52,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:55:53,025 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 165 [2020-10-23 19:55:53,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:55:53,108 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 19:55:53,109 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1076329460] [2020-10-23 19:55:53,109 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-23 19:55:53,109 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-10-23 19:55:53,109 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1149316299] [2020-10-23 19:55:53,110 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-10-23 19:55:53,110 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-23 19:55:53,111 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-10-23 19:55:53,112 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2020-10-23 19:55:53,112 INFO L87 Difference]: Start difference. First operand 415 states and 464 transitions. Second operand 9 states. [2020-10-23 19:55:53,769 WARN L193 SmtUtils]: Spent 310.00 ms on a formula simplification that was a NOOP. DAG size: 204 [2020-10-23 19:55:55,855 WARN L193 SmtUtils]: Spent 344.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2020-10-23 19:55:56,256 WARN L193 SmtUtils]: Spent 346.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2020-10-23 19:55:56,673 WARN L193 SmtUtils]: Spent 338.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2020-10-23 19:55:57,116 WARN L193 SmtUtils]: Spent 345.00 ms on a formula simplification that was a NOOP. DAG size: 204 [2020-10-23 19:55:57,486 WARN L193 SmtUtils]: Spent 344.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2020-10-23 19:55:57,871 WARN L193 SmtUtils]: Spent 333.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2020-10-23 19:55:58,241 WARN L193 SmtUtils]: Spent 333.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2020-10-23 19:55:59,181 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-23 19:55:59,181 INFO L93 Difference]: Finished difference Result 1092 states and 1322 transitions. [2020-10-23 19:55:59,182 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2020-10-23 19:55:59,183 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 178 [2020-10-23 19:55:59,184 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-23 19:55:59,191 INFO L225 Difference]: With dead ends: 1092 [2020-10-23 19:55:59,192 INFO L226 Difference]: Without dead ends: 792 [2020-10-23 19:55:59,196 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 25 ImplicationChecksByTransitivity, 3.2s TimeCoverageRelationStatistics Valid=86, Invalid=220, Unknown=0, NotChecked=0, Total=306 [2020-10-23 19:55:59,197 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 792 states. [2020-10-23 19:55:59,531 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 792 to 693. [2020-10-23 19:55:59,531 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 693 states. [2020-10-23 19:55:59,543 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 693 states to 693 states and 799 transitions. [2020-10-23 19:55:59,544 INFO L78 Accepts]: Start accepts. Automaton has 693 states and 799 transitions. Word has length 178 [2020-10-23 19:55:59,545 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-23 19:55:59,545 INFO L481 AbstractCegarLoop]: Abstraction has 693 states and 799 transitions. [2020-10-23 19:55:59,545 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-10-23 19:55:59,545 INFO L276 IsEmpty]: Start isEmpty. Operand 693 states and 799 transitions. [2020-10-23 19:55:59,552 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 184 [2020-10-23 19:55:59,552 INFO L414 BasicCegarLoop]: Found error trace [2020-10-23 19:55:59,552 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-23 19:55:59,552 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-23 19:55:59,553 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 19:55:59,553 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-23 19:55:59,554 INFO L82 PathProgramCache]: Analyzing trace with hash 1247772573, now seen corresponding path program 1 times [2020-10-23 19:55:59,554 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-23 19:55:59,554 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1074534786] [2020-10-23 19:55:59,554 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-23 19:55:59,559 INFO L321 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-10-23 19:55:59,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-23 19:55:59,651 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-23 19:55:59,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-23 19:55:59,759 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-23 19:55:59,992 INFO L173 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2020-10-23 19:55:59,992 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-10-23 19:55:59,994 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-23 19:56:00,032 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 23.10 07:56:00 BoogieIcfgContainer [2020-10-23 19:56:00,033 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-23 19:56:00,035 INFO L168 Benchmark]: Toolchain (without parser) took 23361.92 ms. Allocated memory was 151.0 MB in the beginning and 426.8 MB in the end (delta: 275.8 MB). Free memory was 126.5 MB in the beginning and 185.2 MB in the end (delta: -58.8 MB). Peak memory consumption was 217.6 MB. Max. memory is 8.0 GB. [2020-10-23 19:56:00,038 INFO L168 Benchmark]: CDTParser took 0.19 ms. Allocated memory is still 151.0 MB. Free memory was 126.0 MB in the beginning and 126.0 MB in the end (delta: 83.0 kB). There was no memory consumed. Max. memory is 8.0 GB. [2020-10-23 19:56:00,040 INFO L168 Benchmark]: CACSL2BoogieTranslator took 628.76 ms. Allocated memory is still 151.0 MB. Free memory was 125.8 MB in the beginning and 105.0 MB in the end (delta: 20.8 MB). Peak memory consumption was 19.9 MB. Max. memory is 8.0 GB. [2020-10-23 19:56:00,047 INFO L168 Benchmark]: Boogie Preprocessor took 87.40 ms. Allocated memory is still 151.0 MB. Free memory was 105.0 MB in the beginning and 101.2 MB in the end (delta: 3.8 MB). Peak memory consumption was 4.2 MB. Max. memory is 8.0 GB. [2020-10-23 19:56:00,049 INFO L168 Benchmark]: RCFGBuilder took 1363.87 ms. Allocated memory was 151.0 MB in the beginning and 181.4 MB in the end (delta: 30.4 MB). Free memory was 101.1 MB in the beginning and 144.8 MB in the end (delta: -43.7 MB). Peak memory consumption was 56.2 MB. Max. memory is 8.0 GB. [2020-10-23 19:56:00,049 INFO L168 Benchmark]: TraceAbstraction took 21264.55 ms. Allocated memory was 181.4 MB in the beginning and 426.8 MB in the end (delta: 245.4 MB). Free memory was 144.3 MB in the beginning and 185.2 MB in the end (delta: -41.0 MB). Peak memory consumption was 204.4 MB. Max. memory is 8.0 GB. [2020-10-23 19:56:00,060 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.19 ms. Allocated memory is still 151.0 MB. Free memory was 126.0 MB in the beginning and 126.0 MB in the end (delta: 83.0 kB). There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 628.76 ms. Allocated memory is still 151.0 MB. Free memory was 125.8 MB in the beginning and 105.0 MB in the end (delta: 20.8 MB). Peak memory consumption was 19.9 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 87.40 ms. Allocated memory is still 151.0 MB. Free memory was 105.0 MB in the beginning and 101.2 MB in the end (delta: 3.8 MB). Peak memory consumption was 4.2 MB. Max. memory is 8.0 GB. * RCFGBuilder took 1363.87 ms. Allocated memory was 151.0 MB in the beginning and 181.4 MB in the end (delta: 30.4 MB). Free memory was 101.1 MB in the beginning and 144.8 MB in the end (delta: -43.7 MB). Peak memory consumption was 56.2 MB. Max. memory is 8.0 GB. * TraceAbstraction took 21264.55 ms. Allocated memory was 181.4 MB in the beginning and 426.8 MB in the end (delta: 245.4 MB). Free memory was 144.3 MB in the beginning and 185.2 MB in the end (delta: -41.0 MB). Peak memory consumption was 204.4 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: [L249] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L450] int waterLevel = 1; [L451] int methaneLevelCritical = 0; [L615] int pumpRunning = 0; [L616] int systemActive = 1; [L809] int cleanupTimeShifts = 4; [L882] int retValue_acc ; [L883] int tmp ; [L887] FCALL select_helpers() [L888] FCALL select_features() [L889] CALL, EXPR valid_product() [L800] int retValue_acc ; [L803] retValue_acc = 1 [L804] return (retValue_acc); [L889] RET, EXPR valid_product() [L889] tmp = valid_product() [L891] COND TRUE \read(tmp) [L893] FCALL setup() [L894] CALL runTest() [L876] CALL test() [L544] int splverifierCounter ; [L545] int tmp ; [L546] int tmp___0 ; [L547] int tmp___1 ; [L548] int tmp___2 ; [L551] splverifierCounter = 0 [L553] COND TRUE 1 [L555] COND TRUE splverifierCounter < 4 [L561] tmp = __VERIFIER_nondet_int() [L563] COND TRUE \read(tmp) [L565] CALL waterRise() [L468] COND TRUE waterLevel < 2 [L469] waterLevel = waterLevel + 1 [L565] RET waterRise() [L571] tmp___0 = __VERIFIER_nondet_int() [L573] COND FALSE !(\read(tmp___0)) [L581] tmp___2 = __VERIFIER_nondet_int() [L583] COND FALSE !(\read(tmp___2)) [L589] tmp___1 = __VERIFIER_nondet_int() [L591] COND TRUE \read(tmp___1) [L593] CALL stopSystem() [L751] COND FALSE !(\read(pumpRunning)) [L758] systemActive = 0 [L593] RET stopSystem() [L600] CALL timeShift() [L622] COND FALSE !(\read(pumpRunning)) [L629] COND FALSE !(\read(systemActive)) [L637] CALL __utac_acc__Specification3_spec__1() [L47] int tmp ; [L48] int tmp___0 ; [L49] int tmp___1 ; [L53] CALL, EXPR isMethaneLevelCritical() [L489] int retValue_acc ; [L492] retValue_acc = methaneLevelCritical [L493] return (retValue_acc); [L53] RET, EXPR isMethaneLevelCritical() [L53] tmp = isMethaneLevelCritical() [L55] COND FALSE !(\read(tmp)) [L59] CALL, EXPR getWaterLevel() [L521] int retValue_acc ; [L524] retValue_acc = waterLevel [L525] return (retValue_acc); [L59] RET, EXPR getWaterLevel() [L59] tmp___0 = getWaterLevel() [L61] COND TRUE tmp___0 == 2 [L63] CALL, EXPR isPumpRunning() [L703] int retValue_acc ; [L706] retValue_acc = pumpRunning [L707] return (retValue_acc); [L63] RET, EXPR isPumpRunning() [L63] tmp___1 = isPumpRunning() [L65] COND FALSE !(\read(tmp___1)) [L69] CALL __automaton_fail() [L534] CALL reach_error() [L3] __assert_fail("0", "minepump_spec3_product08.cil.c", 3, "reach_error") - StatisticsResult: Ultimate Automizer benchmark data CFG has 38 procedures, 613 locations, 5 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 21.1s, OverallIterations: 5, TraceHistogramMax: 1, AutomataDifference: 16.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 934 SDtfs, 1313 SDslu, 1462 SDs, 0 SdLazy, 2781 SolverSat, 489 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 8.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 116 GetRequests, 79 SyntacticMatches, 0 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 70 ImplicationChecksByTransitivity, 7.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=693occurred 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: 0.8s AutomataMinimizationTime, 4 MinimizatonAttempts, 269 StatesRemovedByMinimization, 4 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...