/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_spec5_product40.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.2.0-b8ad66e [2020-10-23 20:19:48,732 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-23 20:19:48,734 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-23 20:19:48,770 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-23 20:19:48,770 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-23 20:19:48,772 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-23 20:19:48,773 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-23 20:19:48,776 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-23 20:19:48,778 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-23 20:19:48,779 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-23 20:19:48,780 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-23 20:19:48,781 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-23 20:19:48,782 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-23 20:19:48,783 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-23 20:19:48,784 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-23 20:19:48,786 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-23 20:19:48,787 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-23 20:19:48,788 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-23 20:19:48,790 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-23 20:19:48,792 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-23 20:19:48,794 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-23 20:19:48,795 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-23 20:19:48,797 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-23 20:19:48,798 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-23 20:19:48,801 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-23 20:19:48,801 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-23 20:19:48,802 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-23 20:19:48,803 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-23 20:19:48,803 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-23 20:19:48,804 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-23 20:19:48,805 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-23 20:19:48,806 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-23 20:19:48,807 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-23 20:19:48,808 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-23 20:19:48,825 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-23 20:19:48,825 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-23 20:19:48,826 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-23 20:19:48,826 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-23 20:19:48,827 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-23 20:19:48,827 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-23 20:19:48,828 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-23 20:19:48,829 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 20:19:48,841 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-23 20:19:48,841 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-23 20:19:48,843 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-23 20:19:48,843 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-23 20:19:48,843 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-23 20:19:48,844 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-23 20:19:48,844 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-23 20:19:48,844 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-23 20:19:48,844 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-23 20:19:48,845 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-23 20:19:48,845 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-23 20:19:48,845 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-23 20:19:48,845 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-23 20:19:48,845 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-23 20:19:48,846 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-23 20:19:48,846 INFO L138 SettingsManager]: * Size of a code block=SingleStatement [2020-10-23 20:19:48,846 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-23 20:19:48,846 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-23 20:19:48,847 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-23 20:19:48,847 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-23 20:19:48,847 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=AcceleratedInterpolation [2020-10-23 20:19:48,847 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-23 20:19:48,847 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2020-10-23 20:19:49,225 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-23 20:19:49,260 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-23 20:19:49,263 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-23 20:19:49,265 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-23 20:19:49,266 INFO L275 PluginConnector]: CDTParser initialized [2020-10-23 20:19:49,267 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec5_product40.cil.c [2020-10-23 20:19:49,350 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c79352a93/301f605bf1264a5785c0a9a7f422a82d/FLAG64c83384c [2020-10-23 20:19:50,099 INFO L306 CDTParser]: Found 1 translation units. [2020-10-23 20:19:50,100 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/minepump_spec5_product40.cil.c [2020-10-23 20:19:50,125 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c79352a93/301f605bf1264a5785c0a9a7f422a82d/FLAG64c83384c [2020-10-23 20:19:50,424 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c79352a93/301f605bf1264a5785c0a9a7f422a82d [2020-10-23 20:19:50,427 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-23 20:19:50,444 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-23 20:19:50,447 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-23 20:19:50,447 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-23 20:19:50,451 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-23 20:19:50,452 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.10 08:19:50" (1/1) ... [2020-10-23 20:19:50,456 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7a648592 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 08:19:50, skipping insertion in model container [2020-10-23 20:19:50,457 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.10 08:19:50" (1/1) ... [2020-10-23 20:19:50,465 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-23 20:19:50,529 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-23 20:19:50,905 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-23 20:19:50,918 INFO L203 MainTranslator]: Completed pre-run [2020-10-23 20:19:51,031 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-23 20:19:51,082 INFO L208 MainTranslator]: Completed translation [2020-10-23 20:19:51,083 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 08:19:51 WrapperNode [2020-10-23 20:19:51,083 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-23 20:19:51,084 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-23 20:19:51,084 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-23 20:19:51,085 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-23 20:19:51,098 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 08:19:51" (1/1) ... [2020-10-23 20:19:51,099 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 08:19:51" (1/1) ... [2020-10-23 20:19:51,137 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 08:19:51" (1/1) ... [2020-10-23 20:19:51,139 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 08:19:51" (1/1) ... [2020-10-23 20:19:51,208 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 08:19:51" (1/1) ... [2020-10-23 20:19:51,217 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 08:19:51" (1/1) ... [2020-10-23 20:19:51,223 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 08:19:51" (1/1) ... [2020-10-23 20:19:51,230 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-23 20:19:51,232 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-23 20:19:51,232 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-23 20:19:51,232 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-23 20:19:51,233 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 08:19:51" (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 20:19:51,314 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-23 20:19:51,314 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-23 20:19:51,315 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2020-10-23 20:19:51,315 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2020-10-23 20:19:51,315 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2020-10-23 20:19:51,316 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2020-10-23 20:19:51,316 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__highWaterSensor [2020-10-23 20:19:51,316 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2020-10-23 20:19:51,316 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2020-10-23 20:19:51,316 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2020-10-23 20:19:51,317 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2020-10-23 20:19:51,317 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2020-10-23 20:19:51,317 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2020-10-23 20:19:51,317 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterLevel [2020-10-23 20:19:51,318 INFO L138 BoogieDeclarations]: Found implementation of procedure stopSystem [2020-10-23 20:19:51,318 INFO L138 BoogieDeclarations]: Found implementation of procedure startSystem [2020-10-23 20:19:51,318 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2020-10-23 20:19:51,319 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2020-10-23 20:19:51,319 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2020-10-23 20:19:51,319 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2020-10-23 20:19:51,320 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2020-10-23 20:19:51,320 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2020-10-23 20:19:51,324 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2020-10-23 20:19:51,324 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification5_spec__1 [2020-10-23 20:19:51,325 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification5_spec__2 [2020-10-23 20:19:51,325 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification5_spec__3 [2020-10-23 20:19:51,325 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2020-10-23 20:19:51,325 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2020-10-23 20:19:51,325 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2020-10-23 20:19:51,326 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2020-10-23 20:19:51,326 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-23 20:19:51,326 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2020-10-23 20:19:51,326 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2020-10-23 20:19:51,326 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2020-10-23 20:19:51,326 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2020-10-23 20:19:51,327 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2020-10-23 20:19:51,327 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2020-10-23 20:19:51,327 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2020-10-23 20:19:51,327 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2020-10-23 20:19:51,327 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2020-10-23 20:19:51,327 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2020-10-23 20:19:51,328 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2020-10-23 20:19:51,328 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterSensorDry [2020-10-23 20:19:51,328 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-10-23 20:19:51,328 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-10-23 20:19:51,328 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2020-10-23 20:19:51,328 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-23 20:19:51,329 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-10-23 20:19:51,329 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2020-10-23 20:19:51,329 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2020-10-23 20:19:51,329 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2020-10-23 20:19:51,329 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2020-10-23 20:19:51,329 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterSensorDry [2020-10-23 20:19:51,330 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2020-10-23 20:19:51,330 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2020-10-23 20:19:51,330 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2020-10-23 20:19:51,330 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2020-10-23 20:19:51,330 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2020-10-23 20:19:51,330 INFO L130 BoogieDeclarations]: Found specification of procedure stopSystem [2020-10-23 20:19:51,331 INFO L130 BoogieDeclarations]: Found specification of procedure startSystem [2020-10-23 20:19:51,331 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification5_spec__2 [2020-10-23 20:19:51,331 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification5_spec__3 [2020-10-23 20:19:51,332 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2020-10-23 20:19:51,332 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2020-10-23 20:19:51,332 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterLevel [2020-10-23 20:19:51,332 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__highWaterSensor [2020-10-23 20:19:51,332 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2020-10-23 20:19:51,332 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2020-10-23 20:19:51,333 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2020-10-23 20:19:51,333 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2020-10-23 20:19:51,333 INFO L130 BoogieDeclarations]: Found specification of procedure test [2020-10-23 20:19:51,333 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-10-23 20:19:51,334 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-10-23 20:19:51,334 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2020-10-23 20:19:51,334 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-10-23 20:19:51,335 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-10-23 20:19:51,335 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-23 20:19:51,335 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-10-23 20:19:51,335 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2020-10-23 20:19:51,335 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-23 20:19:51,336 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2020-10-23 20:19:51,336 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2020-10-23 20:19:51,337 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-10-23 20:19:51,337 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2020-10-23 20:19:51,337 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2020-10-23 20:19:51,337 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2020-10-23 20:19:51,338 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2020-10-23 20:19:51,339 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2020-10-23 20:19:51,339 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification5_spec__1 [2020-10-23 20:19:51,339 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2020-10-23 20:19:51,339 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2020-10-23 20:19:51,339 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2020-10-23 20:19:51,340 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2020-10-23 20:19:51,340 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2020-10-23 20:19:51,341 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2020-10-23 20:19:51,341 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-23 20:19:51,341 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2020-10-23 20:19:51,341 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-23 20:19:51,342 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-23 20:19:51,342 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-23 20:19:52,530 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-23 20:19:52,531 INFO L298 CfgBuilder]: Removed 5 assume(true) statements. [2020-10-23 20:19:52,534 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.10 08:19:52 BoogieIcfgContainer [2020-10-23 20:19:52,534 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-23 20:19:52,535 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-23 20:19:52,536 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-23 20:19:52,539 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-23 20:19:52,539 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.10 08:19:50" (1/3) ... [2020-10-23 20:19:52,540 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3d372ce1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.10 08:19:52, skipping insertion in model container [2020-10-23 20:19:52,540 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 08:19:51" (2/3) ... [2020-10-23 20:19:52,541 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3d372ce1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.10 08:19:52, skipping insertion in model container [2020-10-23 20:19:52,541 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.10 08:19:52" (3/3) ... [2020-10-23 20:19:52,543 INFO L111 eAbstractionObserver]: Analyzing ICFG minepump_spec5_product40.cil.c [2020-10-23 20:19:52,555 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:AcceleratedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-23 20:19:52,561 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 5 error locations. [2020-10-23 20:19:52,575 INFO L253 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2020-10-23 20:19:52,600 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-23 20:19:52,600 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-23 20:19:52,600 INFO L379 AbstractCegarLoop]: Compute interpolants for AcceleratedInterpolation [2020-10-23 20:19:52,600 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-23 20:19:52,601 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-23 20:19:52,601 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-23 20:19:52,601 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-23 20:19:52,601 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-23 20:19:52,624 INFO L276 IsEmpty]: Start isEmpty. Operand 338 states. [2020-10-23 20:19:52,645 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 167 [2020-10-23 20:19:52,646 INFO L414 BasicCegarLoop]: Found error trace [2020-10-23 20:19:52,647 INFO L422 BasicCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-23 20:19:52,647 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 20:19:52,654 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-23 20:19:52,654 INFO L82 PathProgramCache]: Analyzing trace with hash 2082647303, now seen corresponding path program 1 times [2020-10-23 20:19:52,666 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-23 20:19:52,667 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1955338114] [2020-10-23 20:19:52,667 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-23 20:19:52,747 INFO L321 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-10-23 20:19:52,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:19:53,519 WARN L193 SmtUtils]: Spent 347.00 ms on a formula simplification that was a NOOP. DAG size: 205 [2020-10-23 20:19:53,526 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-23 20:19:53,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:19:53,636 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-10-23 20:19:53,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:19:53,639 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2020-10-23 20:19:53,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:19:53,641 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2020-10-23 20:19:53,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:19:53,644 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2020-10-23 20:19:53,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:19:53,653 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2020-10-23 20:19:53,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:19:53,656 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2020-10-23 20:19:53,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:19:53,660 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-23 20:19:53,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:19:53,663 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2020-10-23 20:19:53,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:19:53,665 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 152 [2020-10-23 20:19:53,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:19:53,719 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2020-10-23 20:19:53,720 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1955338114] [2020-10-23 20:19:53,723 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-23 20:19:53,723 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-23 20:19:53,723 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1010782010] [2020-10-23 20:19:53,729 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-23 20:19:53,729 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-23 20:19:53,743 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-23 20:19:53,743 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-10-23 20:19:53,746 INFO L87 Difference]: Start difference. First operand 338 states. Second operand 4 states. [2020-10-23 20:19:55,273 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-23 20:19:55,273 INFO L93 Difference]: Finished difference Result 530 states and 623 transitions. [2020-10-23 20:19:55,274 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-23 20:19:55,275 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 166 [2020-10-23 20:19:55,276 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-23 20:19:55,293 INFO L225 Difference]: With dead ends: 530 [2020-10-23 20:19:55,293 INFO L226 Difference]: Without dead ends: 333 [2020-10-23 20:19:55,299 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-10-23 20:19:55,320 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 333 states. [2020-10-23 20:19:55,509 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 333 to 284. [2020-10-23 20:19:55,511 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 284 states. [2020-10-23 20:19:55,513 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 284 states to 284 states and 309 transitions. [2020-10-23 20:19:55,515 INFO L78 Accepts]: Start accepts. Automaton has 284 states and 309 transitions. Word has length 166 [2020-10-23 20:19:55,516 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-23 20:19:55,516 INFO L481 AbstractCegarLoop]: Abstraction has 284 states and 309 transitions. [2020-10-23 20:19:55,517 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-23 20:19:55,517 INFO L276 IsEmpty]: Start isEmpty. Operand 284 states and 309 transitions. [2020-10-23 20:19:55,521 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 168 [2020-10-23 20:19:55,522 INFO L414 BasicCegarLoop]: Found error trace [2020-10-23 20:19:55,522 INFO L422 BasicCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-23 20:19:55,522 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-23 20:19:55,523 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 20:19:55,523 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-23 20:19:55,524 INFO L82 PathProgramCache]: Analyzing trace with hash -1375778295, now seen corresponding path program 1 times [2020-10-23 20:19:55,524 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-23 20:19:55,524 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [765377277] [2020-10-23 20:19:55,524 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-23 20:19:55,529 INFO L321 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-10-23 20:19:55,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:19:56,050 WARN L193 SmtUtils]: Spent 349.00 ms on a formula simplification that was a NOOP. DAG size: 205 [2020-10-23 20:19:56,052 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-23 20:19:56,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:19:56,096 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-10-23 20:19:56,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:19:56,099 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2020-10-23 20:19:56,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:19:56,101 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2020-10-23 20:19:56,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:19:56,103 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2020-10-23 20:19:56,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:19:56,121 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2020-10-23 20:19:56,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:19:56,124 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2020-10-23 20:19:56,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:19:56,127 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-23 20:19:56,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:19:56,130 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2020-10-23 20:19:56,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:19:56,133 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 153 [2020-10-23 20:19:56,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:19:56,193 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2020-10-23 20:19:56,194 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [765377277] [2020-10-23 20:19:56,194 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-23 20:19:56,195 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-10-23 20:19:56,195 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [56690579] [2020-10-23 20:19:56,196 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-23 20:19:56,196 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-23 20:19:56,197 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-23 20:19:56,197 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-23 20:19:56,197 INFO L87 Difference]: Start difference. First operand 284 states and 309 transitions. Second operand 5 states. [2020-10-23 20:19:57,068 WARN L193 SmtUtils]: Spent 365.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2020-10-23 20:19:58,549 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-23 20:19:58,549 INFO L93 Difference]: Finished difference Result 446 states and 503 transitions. [2020-10-23 20:19:58,550 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-23 20:19:58,550 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 167 [2020-10-23 20:19:58,551 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-23 20:19:58,556 INFO L225 Difference]: With dead ends: 446 [2020-10-23 20:19:58,556 INFO L226 Difference]: Without dead ends: 322 [2020-10-23 20:19:58,558 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2020-10-23 20:19:58,560 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 322 states. [2020-10-23 20:19:58,664 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 322 to 274. [2020-10-23 20:19:58,665 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 274 states. [2020-10-23 20:19:58,667 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 274 states to 274 states and 296 transitions. [2020-10-23 20:19:58,667 INFO L78 Accepts]: Start accepts. Automaton has 274 states and 296 transitions. Word has length 167 [2020-10-23 20:19:58,668 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-23 20:19:58,668 INFO L481 AbstractCegarLoop]: Abstraction has 274 states and 296 transitions. [2020-10-23 20:19:58,668 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-23 20:19:58,668 INFO L276 IsEmpty]: Start isEmpty. Operand 274 states and 296 transitions. [2020-10-23 20:19:58,671 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 181 [2020-10-23 20:19:58,671 INFO L414 BasicCegarLoop]: Found error trace [2020-10-23 20:19:58,671 INFO L422 BasicCegarLoop]: trace histogram [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, 1, 1, 1, 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 20:19:58,672 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-23 20:19:58,672 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 20:19:58,673 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-23 20:19:58,673 INFO L82 PathProgramCache]: Analyzing trace with hash 878995343, now seen corresponding path program 1 times [2020-10-23 20:19:58,673 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-23 20:19:58,673 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1735041975] [2020-10-23 20:19:58,674 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-23 20:19:58,677 INFO L321 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-10-23 20:19:58,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:19:59,180 WARN L193 SmtUtils]: Spent 375.00 ms on a formula simplification that was a NOOP. DAG size: 205 [2020-10-23 20:19:59,181 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-23 20:19:59,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:19:59,239 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-10-23 20:19:59,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:19:59,241 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2020-10-23 20:19:59,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:19:59,243 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2020-10-23 20:19:59,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:19:59,284 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2020-10-23 20:19:59,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:19:59,299 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2020-10-23 20:19:59,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:19:59,316 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2020-10-23 20:19:59,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:19:59,334 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2020-10-23 20:19:59,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:19:59,338 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-23 20:19:59,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:19:59,340 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 156 [2020-10-23 20:19:59,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:19:59,342 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 166 [2020-10-23 20:19:59,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:19:59,389 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2020-10-23 20:19:59,389 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1735041975] [2020-10-23 20:19:59,390 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-23 20:19:59,390 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2020-10-23 20:19:59,390 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1573357209] [2020-10-23 20:19:59,391 INFO L461 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-10-23 20:19:59,391 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-23 20:19:59,391 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-10-23 20:19:59,392 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2020-10-23 20:19:59,392 INFO L87 Difference]: Start difference. First operand 274 states and 296 transitions. Second operand 11 states. [2020-10-23 20:20:00,197 WARN L193 SmtUtils]: Spent 344.00 ms on a formula simplification that was a NOOP. DAG size: 207 [2020-10-23 20:20:00,666 WARN L193 SmtUtils]: Spent 344.00 ms on a formula simplification that was a NOOP. DAG size: 210 [2020-10-23 20:20:01,093 WARN L193 SmtUtils]: Spent 400.00 ms on a formula simplification that was a NOOP. DAG size: 213 [2020-10-23 20:20:01,543 WARN L193 SmtUtils]: Spent 399.00 ms on a formula simplification that was a NOOP. DAG size: 209 [2020-10-23 20:20:01,965 WARN L193 SmtUtils]: Spent 382.00 ms on a formula simplification that was a NOOP. DAG size: 211 [2020-10-23 20:20:02,358 WARN L193 SmtUtils]: Spent 353.00 ms on a formula simplification that was a NOOP. DAG size: 209 [2020-10-23 20:20:03,823 WARN L193 SmtUtils]: Spent 344.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2020-10-23 20:20:06,849 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-23 20:20:06,850 INFO L93 Difference]: Finished difference Result 750 states and 872 transitions. [2020-10-23 20:20:06,850 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2020-10-23 20:20:06,851 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 180 [2020-10-23 20:20:06,852 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-23 20:20:06,857 INFO L225 Difference]: With dead ends: 750 [2020-10-23 20:20:06,857 INFO L226 Difference]: Without dead ends: 596 [2020-10-23 20:20:06,860 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 51 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 81 ImplicationChecksByTransitivity, 3.2s TimeCoverageRelationStatistics Valid=168, Invalid=384, Unknown=0, NotChecked=0, Total=552 [2020-10-23 20:20:06,861 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 596 states. [2020-10-23 20:20:07,069 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 596 to 495. [2020-10-23 20:20:07,070 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 495 states. [2020-10-23 20:20:07,073 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 495 states to 495 states and 555 transitions. [2020-10-23 20:20:07,073 INFO L78 Accepts]: Start accepts. Automaton has 495 states and 555 transitions. Word has length 180 [2020-10-23 20:20:07,074 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-23 20:20:07,074 INFO L481 AbstractCegarLoop]: Abstraction has 495 states and 555 transitions. [2020-10-23 20:20:07,074 INFO L482 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-10-23 20:20:07,075 INFO L276 IsEmpty]: Start isEmpty. Operand 495 states and 555 transitions. [2020-10-23 20:20:07,078 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 186 [2020-10-23 20:20:07,078 INFO L414 BasicCegarLoop]: Found error trace [2020-10-23 20:20:07,079 INFO L422 BasicCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 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 20:20:07,079 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-23 20:20:07,079 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 20:20:07,080 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-23 20:20:07,080 INFO L82 PathProgramCache]: Analyzing trace with hash -1264484845, now seen corresponding path program 1 times [2020-10-23 20:20:07,080 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-23 20:20:07,080 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2064391698] [2020-10-23 20:20:07,081 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-23 20:20:07,084 INFO L321 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-10-23 20:20:07,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:20:07,528 WARN L193 SmtUtils]: Spent 328.00 ms on a formula simplification that was a NOOP. DAG size: 205 [2020-10-23 20:20:07,529 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-23 20:20:07,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:20:07,590 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-10-23 20:20:07,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:20:07,593 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2020-10-23 20:20:07,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:20:07,595 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2020-10-23 20:20:07,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:20:07,597 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2020-10-23 20:20:07,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:20:07,607 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2020-10-23 20:20:07,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:20:07,630 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 138 [2020-10-23 20:20:07,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:20:07,633 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 144 [2020-10-23 20:20:07,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:20:07,640 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-23 20:20:07,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:20:07,643 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 161 [2020-10-23 20:20:07,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:20:07,648 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 171 [2020-10-23 20:20:07,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:20:07,729 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2020-10-23 20:20:07,729 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2064391698] [2020-10-23 20:20:07,729 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-23 20:20:07,729 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-10-23 20:20:07,730 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [44114771] [2020-10-23 20:20:07,731 INFO L461 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-10-23 20:20:07,731 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-23 20:20:07,733 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-10-23 20:20:07,734 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2020-10-23 20:20:07,734 INFO L87 Difference]: Start difference. First operand 495 states and 555 transitions. Second operand 10 states. [2020-10-23 20:20:08,420 WARN L193 SmtUtils]: Spent 338.00 ms on a formula simplification that was a NOOP. DAG size: 207 [2020-10-23 20:20:09,540 WARN L193 SmtUtils]: Spent 339.00 ms on a formula simplification that was a NOOP. DAG size: 209 [2020-10-23 20:20:09,955 WARN L193 SmtUtils]: Spent 371.00 ms on a formula simplification that was a NOOP. DAG size: 211 [2020-10-23 20:20:11,282 WARN L193 SmtUtils]: Spent 328.00 ms on a formula simplification that was a NOOP. DAG size: 207 [2020-10-23 20:20:11,647 WARN L193 SmtUtils]: Spent 329.00 ms on a formula simplification that was a NOOP. DAG size: 209 [2020-10-23 20:20:12,085 WARN L193 SmtUtils]: Spent 326.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2020-10-23 20:20:12,470 WARN L193 SmtUtils]: Spent 342.00 ms on a formula simplification that was a NOOP. DAG size: 209 [2020-10-23 20:20:12,935 WARN L193 SmtUtils]: Spent 363.00 ms on a formula simplification that was a NOOP. DAG size: 211 [2020-10-23 20:20:13,345 WARN L193 SmtUtils]: Spent 363.00 ms on a formula simplification that was a NOOP. DAG size: 209 [2020-10-23 20:20:14,518 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-23 20:20:14,518 INFO L93 Difference]: Finished difference Result 1135 states and 1362 transitions. [2020-10-23 20:20:14,519 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2020-10-23 20:20:14,519 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 185 [2020-10-23 20:20:14,520 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-23 20:20:14,526 INFO L225 Difference]: With dead ends: 1135 [2020-10-23 20:20:14,526 INFO L226 Difference]: Without dead ends: 760 [2020-10-23 20:20:14,528 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 55 ImplicationChecksByTransitivity, 3.7s TimeCoverageRelationStatistics Valid=143, Invalid=363, Unknown=0, NotChecked=0, Total=506 [2020-10-23 20:20:14,530 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 760 states. [2020-10-23 20:20:14,778 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 760 to 667. [2020-10-23 20:20:14,778 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 667 states. [2020-10-23 20:20:14,783 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 667 states to 667 states and 751 transitions. [2020-10-23 20:20:14,783 INFO L78 Accepts]: Start accepts. Automaton has 667 states and 751 transitions. Word has length 185 [2020-10-23 20:20:14,784 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-23 20:20:14,784 INFO L481 AbstractCegarLoop]: Abstraction has 667 states and 751 transitions. [2020-10-23 20:20:14,784 INFO L482 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-10-23 20:20:14,785 INFO L276 IsEmpty]: Start isEmpty. Operand 667 states and 751 transitions. [2020-10-23 20:20:14,788 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 219 [2020-10-23 20:20:14,789 INFO L414 BasicCegarLoop]: Found error trace [2020-10-23 20:20:14,789 INFO L422 BasicCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 20:20:14,789 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-23 20:20:14,789 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 20:20:14,790 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-23 20:20:14,790 INFO L82 PathProgramCache]: Analyzing trace with hash 1568261276, now seen corresponding path program 1 times [2020-10-23 20:20:14,790 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-23 20:20:14,791 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [849795217] [2020-10-23 20:20:14,791 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-23 20:20:14,794 INFO L321 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-10-23 20:20:14,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:20:15,228 WARN L193 SmtUtils]: Spent 348.00 ms on a formula simplification that was a NOOP. DAG size: 205 [2020-10-23 20:20:15,229 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-23 20:20:15,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:20:15,261 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-10-23 20:20:15,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:20:15,263 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2020-10-23 20:20:15,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:20:15,264 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2020-10-23 20:20:15,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:20:15,301 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2020-10-23 20:20:15,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:20:15,313 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2020-10-23 20:20:15,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:20:15,326 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2020-10-23 20:20:15,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:20:15,328 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2020-10-23 20:20:15,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:20:15,331 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-23 20:20:15,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:20:15,345 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 153 [2020-10-23 20:20:15,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:20:15,352 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-23 20:20:15,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:20:15,360 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-23 20:20:15,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:20:15,398 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-23 20:20:15,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:20:15,443 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-10-23 20:20:15,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:20:15,447 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 194 [2020-10-23 20:20:15,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:20:15,449 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 204 [2020-10-23 20:20:15,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:20:15,504 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 20:20:15,504 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [849795217] [2020-10-23 20:20:15,505 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-23 20:20:15,505 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2020-10-23 20:20:15,505 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [577694484] [2020-10-23 20:20:15,506 INFO L461 AbstractCegarLoop]: Interpolant automaton has 14 states [2020-10-23 20:20:15,506 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-23 20:20:15,506 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2020-10-23 20:20:15,507 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=154, Unknown=0, NotChecked=0, Total=182 [2020-10-23 20:20:15,507 INFO L87 Difference]: Start difference. First operand 667 states and 751 transitions. Second operand 14 states. [2020-10-23 20:20:16,315 WARN L193 SmtUtils]: Spent 371.00 ms on a formula simplification that was a NOOP. DAG size: 209 [2020-10-23 20:20:16,731 WARN L193 SmtUtils]: Spent 384.00 ms on a formula simplification that was a NOOP. DAG size: 212 [2020-10-23 20:20:17,115 WARN L193 SmtUtils]: Spent 327.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2020-10-23 20:20:17,488 WARN L193 SmtUtils]: Spent 336.00 ms on a formula simplification that was a NOOP. DAG size: 210 [2020-10-23 20:20:17,852 WARN L193 SmtUtils]: Spent 337.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2020-10-23 20:20:19,290 WARN L193 SmtUtils]: Spent 351.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2020-10-23 20:20:19,740 WARN L193 SmtUtils]: Spent 368.00 ms on a formula simplification that was a NOOP. DAG size: 210 [2020-10-23 20:20:20,180 WARN L193 SmtUtils]: Spent 347.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2020-10-23 20:20:20,651 WARN L193 SmtUtils]: Spent 374.00 ms on a formula simplification that was a NOOP. DAG size: 210 [2020-10-23 20:20:21,064 WARN L193 SmtUtils]: Spent 356.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2020-10-23 20:20:22,586 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-23 20:20:22,586 INFO L93 Difference]: Finished difference Result 1428 states and 1737 transitions. [2020-10-23 20:20:22,591 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2020-10-23 20:20:22,591 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 218 [2020-10-23 20:20:22,592 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-23 20:20:22,599 INFO L225 Difference]: With dead ends: 1428 [2020-10-23 20:20:22,599 INFO L226 Difference]: Without dead ends: 881 [2020-10-23 20:20:22,602 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 65 GetRequests, 39 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 79 ImplicationChecksByTransitivity, 4.3s TimeCoverageRelationStatistics Valid=172, Invalid=584, Unknown=0, NotChecked=0, Total=756 [2020-10-23 20:20:22,604 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 881 states. [2020-10-23 20:20:22,848 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 881 to 682. [2020-10-23 20:20:22,848 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 682 states. [2020-10-23 20:20:22,853 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 682 states to 682 states and 767 transitions. [2020-10-23 20:20:22,854 INFO L78 Accepts]: Start accepts. Automaton has 682 states and 767 transitions. Word has length 218 [2020-10-23 20:20:22,855 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-23 20:20:22,855 INFO L481 AbstractCegarLoop]: Abstraction has 682 states and 767 transitions. [2020-10-23 20:20:22,855 INFO L482 AbstractCegarLoop]: Interpolant automaton has 14 states. [2020-10-23 20:20:22,855 INFO L276 IsEmpty]: Start isEmpty. Operand 682 states and 767 transitions. [2020-10-23 20:20:22,859 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 219 [2020-10-23 20:20:22,859 INFO L414 BasicCegarLoop]: Found error trace [2020-10-23 20:20:22,859 INFO L422 BasicCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 20:20:22,860 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-23 20:20:22,860 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 20:20:22,860 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-23 20:20:22,861 INFO L82 PathProgramCache]: Analyzing trace with hash 1154629884, now seen corresponding path program 1 times [2020-10-23 20:20:22,861 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-23 20:20:22,861 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1843718753] [2020-10-23 20:20:22,861 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-23 20:20:22,866 INFO L321 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-10-23 20:20:22,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:20:23,259 WARN L193 SmtUtils]: Spent 330.00 ms on a formula simplification that was a NOOP. DAG size: 205 [2020-10-23 20:20:23,261 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-23 20:20:23,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:20:23,291 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-10-23 20:20:23,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:20:23,292 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2020-10-23 20:20:23,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:20:23,294 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2020-10-23 20:20:23,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:20:23,295 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2020-10-23 20:20:23,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:20:23,363 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2020-10-23 20:20:23,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:20:23,374 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2020-10-23 20:20:23,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:20:23,376 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2020-10-23 20:20:23,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:20:23,383 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-23 20:20:23,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:20:23,394 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 153 [2020-10-23 20:20:23,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:20:23,402 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-23 20:20:23,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:20:23,433 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-23 20:20:23,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:20:23,496 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-23 20:20:23,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:20:23,501 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-10-23 20:20:23,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:20:23,506 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 194 [2020-10-23 20:20:23,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:20:23,508 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 204 [2020-10-23 20:20:23,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:20:23,566 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 20:20:23,567 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1843718753] [2020-10-23 20:20:23,568 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-23 20:20:23,568 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2020-10-23 20:20:23,568 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1595295109] [2020-10-23 20:20:23,569 INFO L461 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-10-23 20:20:23,570 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-23 20:20:23,570 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-10-23 20:20:23,570 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2020-10-23 20:20:23,571 INFO L87 Difference]: Start difference. First operand 682 states and 767 transitions. Second operand 11 states. [2020-10-23 20:20:25,538 WARN L193 SmtUtils]: Spent 340.00 ms on a formula simplification that was a NOOP. DAG size: 209 [2020-10-23 20:20:25,961 WARN L193 SmtUtils]: Spent 374.00 ms on a formula simplification that was a NOOP. DAG size: 212 [2020-10-23 20:20:26,376 WARN L193 SmtUtils]: Spent 389.00 ms on a formula simplification that was a NOOP. DAG size: 215 [2020-10-23 20:20:26,785 WARN L193 SmtUtils]: Spent 352.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2020-10-23 20:20:27,208 WARN L193 SmtUtils]: Spent 365.00 ms on a formula simplification that was a NOOP. DAG size: 210 [2020-10-23 20:20:27,611 WARN L193 SmtUtils]: Spent 368.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2020-10-23 20:20:29,093 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-23 20:20:29,094 INFO L93 Difference]: Finished difference Result 1449 states and 1734 transitions. [2020-10-23 20:20:29,094 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2020-10-23 20:20:29,095 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 218 [2020-10-23 20:20:29,095 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-23 20:20:29,101 INFO L225 Difference]: With dead ends: 1449 [2020-10-23 20:20:29,102 INFO L226 Difference]: Without dead ends: 887 [2020-10-23 20:20:29,105 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 55 GetRequests, 36 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 32 ImplicationChecksByTransitivity, 2.8s TimeCoverageRelationStatistics Valid=121, Invalid=299, Unknown=0, NotChecked=0, Total=420 [2020-10-23 20:20:29,107 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 887 states. [2020-10-23 20:20:29,402 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 887 to 698. [2020-10-23 20:20:29,402 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 698 states. [2020-10-23 20:20:29,406 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 698 states to 698 states and 783 transitions. [2020-10-23 20:20:29,407 INFO L78 Accepts]: Start accepts. Automaton has 698 states and 783 transitions. Word has length 218 [2020-10-23 20:20:29,407 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-23 20:20:29,407 INFO L481 AbstractCegarLoop]: Abstraction has 698 states and 783 transitions. [2020-10-23 20:20:29,407 INFO L482 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-10-23 20:20:29,407 INFO L276 IsEmpty]: Start isEmpty. Operand 698 states and 783 transitions. [2020-10-23 20:20:29,411 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 219 [2020-10-23 20:20:29,412 INFO L414 BasicCegarLoop]: Found error trace [2020-10-23 20:20:29,412 INFO L422 BasicCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 20:20:29,412 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-23 20:20:29,412 INFO L429 AbstractCegarLoop]: === Iteration 7 === [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 20:20:29,413 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-23 20:20:29,413 INFO L82 PathProgramCache]: Analyzing trace with hash 1498743167, now seen corresponding path program 1 times [2020-10-23 20:20:29,413 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-23 20:20:29,413 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1445845193] [2020-10-23 20:20:29,413 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-23 20:20:29,416 INFO L321 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-10-23 20:20:29,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:20:29,922 WARN L193 SmtUtils]: Spent 376.00 ms on a formula simplification that was a NOOP. DAG size: 205 [2020-10-23 20:20:29,923 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-23 20:20:29,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:20:29,979 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-10-23 20:20:29,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:20:29,982 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2020-10-23 20:20:29,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:20:29,984 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2020-10-23 20:20:29,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:20:29,986 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2020-10-23 20:20:29,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:20:30,000 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2020-10-23 20:20:30,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:20:30,016 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2020-10-23 20:20:30,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:20:30,019 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2020-10-23 20:20:30,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:20:30,022 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-23 20:20:30,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:20:30,034 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 153 [2020-10-23 20:20:30,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:20:30,051 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-23 20:20:30,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:20:30,067 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-23 20:20:30,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:20:30,081 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-23 20:20:30,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:20:30,094 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-10-23 20:20:30,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:20:30,098 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 194 [2020-10-23 20:20:30,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:20:30,100 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 204 [2020-10-23 20:20:30,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:20:30,156 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 20:20:30,157 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1445845193] [2020-10-23 20:20:30,157 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-23 20:20:30,157 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-10-23 20:20:30,158 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [999529873] [2020-10-23 20:20:30,158 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-23 20:20:30,158 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-23 20:20:30,159 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-23 20:20:30,159 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2020-10-23 20:20:30,159 INFO L87 Difference]: Start difference. First operand 698 states and 783 transitions. Second operand 8 states. [2020-10-23 20:20:30,805 WARN L193 SmtUtils]: Spent 332.00 ms on a formula simplification that was a NOOP. DAG size: 207 [2020-10-23 20:20:31,667 WARN L193 SmtUtils]: Spent 327.00 ms on a formula simplification that was a NOOP. DAG size: 207 [2020-10-23 20:20:35,741 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-23 20:20:35,741 INFO L93 Difference]: Finished difference Result 2233 states and 2734 transitions. [2020-10-23 20:20:35,741 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2020-10-23 20:20:35,742 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 218 [2020-10-23 20:20:35,742 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-23 20:20:35,752 INFO L225 Difference]: With dead ends: 2233 [2020-10-23 20:20:35,753 INFO L226 Difference]: Without dead ends: 1655 [2020-10-23 20:20:35,756 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 71 GetRequests, 45 SyntacticMatches, 3 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 154 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=156, Invalid=444, Unknown=0, NotChecked=0, Total=600 [2020-10-23 20:20:35,758 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1655 states. [2020-10-23 20:20:36,256 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1655 to 1386. [2020-10-23 20:20:36,256 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1386 states. [2020-10-23 20:20:36,262 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1386 states to 1386 states and 1580 transitions. [2020-10-23 20:20:36,263 INFO L78 Accepts]: Start accepts. Automaton has 1386 states and 1580 transitions. Word has length 218 [2020-10-23 20:20:36,263 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-23 20:20:36,263 INFO L481 AbstractCegarLoop]: Abstraction has 1386 states and 1580 transitions. [2020-10-23 20:20:36,263 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-23 20:20:36,263 INFO L276 IsEmpty]: Start isEmpty. Operand 1386 states and 1580 transitions. [2020-10-23 20:20:36,268 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 224 [2020-10-23 20:20:36,268 INFO L414 BasicCegarLoop]: Found error trace [2020-10-23 20:20:36,268 INFO L422 BasicCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 20:20:36,268 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-10-23 20:20:36,269 INFO L429 AbstractCegarLoop]: === Iteration 8 === [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 20:20:36,269 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-23 20:20:36,269 INFO L82 PathProgramCache]: Analyzing trace with hash 2200967, now seen corresponding path program 1 times [2020-10-23 20:20:36,269 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-23 20:20:36,270 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1122943866] [2020-10-23 20:20:36,270 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-23 20:20:36,273 INFO L321 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-10-23 20:20:36,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:20:36,805 WARN L193 SmtUtils]: Spent 310.00 ms on a formula simplification that was a NOOP. DAG size: 205 [2020-10-23 20:20:36,806 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-23 20:20:36,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:20:36,848 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-10-23 20:20:36,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:20:36,850 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2020-10-23 20:20:36,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:20:36,852 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2020-10-23 20:20:36,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:20:36,854 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2020-10-23 20:20:36,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:20:36,868 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2020-10-23 20:20:36,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:20:36,882 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2020-10-23 20:20:36,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:20:36,965 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2020-10-23 20:20:36,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:20:36,969 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 144 [2020-10-23 20:20:36,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:20:36,972 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-23 20:20:36,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:20:36,993 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 158 [2020-10-23 20:20:36,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:20:36,999 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-23 20:20:37,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:20:37,003 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-23 20:20:37,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:20:37,005 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-23 20:20:37,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:20:37,007 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-10-23 20:20:37,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:20:37,011 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 199 [2020-10-23 20:20:37,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:20:37,045 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 209 [2020-10-23 20:20:37,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:20:37,121 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 20:20:37,122 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1122943866] [2020-10-23 20:20:37,122 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-23 20:20:37,122 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2020-10-23 20:20:37,122 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [136504852] [2020-10-23 20:20:37,123 INFO L461 AbstractCegarLoop]: Interpolant automaton has 15 states [2020-10-23 20:20:37,123 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-23 20:20:37,124 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2020-10-23 20:20:37,124 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=177, Unknown=0, NotChecked=0, Total=210 [2020-10-23 20:20:37,124 INFO L87 Difference]: Start difference. First operand 1386 states and 1580 transitions. Second operand 15 states. [2020-10-23 20:20:38,240 WARN L193 SmtUtils]: Spent 715.00 ms on a formula simplification. DAG size of input: 209 DAG size of output: 207 [2020-10-23 20:20:39,353 WARN L193 SmtUtils]: Spent 322.00 ms on a formula simplification that was a NOOP. DAG size: 207 [2020-10-23 20:20:40,952 WARN L193 SmtUtils]: Spent 677.00 ms on a formula simplification. DAG size of input: 211 DAG size of output: 209 [2020-10-23 20:20:41,718 WARN L193 SmtUtils]: Spent 718.00 ms on a formula simplification. DAG size of input: 213 DAG size of output: 211 [2020-10-23 20:20:42,238 WARN L193 SmtUtils]: Spent 349.00 ms on a formula simplification that was a NOOP. DAG size: 209 [2020-10-23 20:20:42,652 WARN L193 SmtUtils]: Spent 346.00 ms on a formula simplification that was a NOOP. DAG size: 211 [2020-10-23 20:20:43,372 WARN L193 SmtUtils]: Spent 682.00 ms on a formula simplification. DAG size of input: 212 DAG size of output: 210 [2020-10-23 20:20:43,817 WARN L193 SmtUtils]: Spent 358.00 ms on a formula simplification that was a NOOP. DAG size: 209 [2020-10-23 20:20:44,259 WARN L193 SmtUtils]: Spent 349.00 ms on a formula simplification that was a NOOP. DAG size: 211 [2020-10-23 20:20:44,703 WARN L193 SmtUtils]: Spent 338.00 ms on a formula simplification that was a NOOP. DAG size: 209 [2020-10-23 20:20:48,714 WARN L193 SmtUtils]: Spent 653.00 ms on a formula simplification. DAG size of input: 208 DAG size of output: 207 [2020-10-23 20:20:49,489 WARN L193 SmtUtils]: Spent 327.00 ms on a formula simplification that was a NOOP. DAG size: 207 [2020-10-23 20:20:49,904 WARN L193 SmtUtils]: Spent 338.00 ms on a formula simplification that was a NOOP. DAG size: 209 [2020-10-23 20:20:50,457 WARN L193 SmtUtils]: Spent 330.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2020-10-23 20:20:51,945 WARN L193 SmtUtils]: Spent 672.00 ms on a formula simplification. DAG size of input: 210 DAG size of output: 209 [2020-10-23 20:20:52,818 WARN L193 SmtUtils]: Spent 838.00 ms on a formula simplification. DAG size of input: 212 DAG size of output: 211 [2020-10-23 20:20:53,654 WARN L193 SmtUtils]: Spent 741.00 ms on a formula simplification. DAG size of input: 211 DAG size of output: 210 [2020-10-23 20:20:54,667 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-23 20:20:54,667 INFO L93 Difference]: Finished difference Result 4232 states and 5199 transitions. [2020-10-23 20:20:54,668 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 56 states. [2020-10-23 20:20:54,668 INFO L78 Accepts]: Start accepts. Automaton has 15 states. Word has length 223 [2020-10-23 20:20:54,669 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-23 20:20:54,687 INFO L225 Difference]: With dead ends: 4232 [2020-10-23 20:20:54,688 INFO L226 Difference]: Without dead ends: 3247 [2020-10-23 20:20:54,694 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 111 GetRequests, 49 SyntacticMatches, 0 SemanticMatches, 62 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1254 ImplicationChecksByTransitivity, 10.4s TimeCoverageRelationStatistics Valid=816, Invalid=3216, Unknown=0, NotChecked=0, Total=4032 [2020-10-23 20:20:54,698 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3247 states. [2020-10-23 20:20:55,914 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3247 to 2535. [2020-10-23 20:20:55,914 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2535 states. [2020-10-23 20:20:55,924 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2535 states to 2535 states and 2871 transitions. [2020-10-23 20:20:55,925 INFO L78 Accepts]: Start accepts. Automaton has 2535 states and 2871 transitions. Word has length 223 [2020-10-23 20:20:55,926 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-23 20:20:55,926 INFO L481 AbstractCegarLoop]: Abstraction has 2535 states and 2871 transitions. [2020-10-23 20:20:55,926 INFO L482 AbstractCegarLoop]: Interpolant automaton has 15 states. [2020-10-23 20:20:55,926 INFO L276 IsEmpty]: Start isEmpty. Operand 2535 states and 2871 transitions. [2020-10-23 20:20:55,933 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 310 [2020-10-23 20:20:55,933 INFO L414 BasicCegarLoop]: Found error trace [2020-10-23 20:20:55,933 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 20:20:55,934 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-10-23 20:20:55,934 INFO L429 AbstractCegarLoop]: === Iteration 9 === [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 20:20:55,934 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-23 20:20:55,934 INFO L82 PathProgramCache]: Analyzing trace with hash 2054034462, now seen corresponding path program 1 times [2020-10-23 20:20:55,935 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-23 20:20:55,935 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1078936626] [2020-10-23 20:20:55,935 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-23 20:20:56,221 WARN L193 SmtUtils]: Spent 256.00 ms on a formula simplification. DAG size of input: 98 DAG size of output: 75 [2020-10-23 20:20:56,657 WARN L193 SmtUtils]: Spent 289.00 ms on a formula simplification. DAG size of input: 97 DAG size of output: 76 [2020-10-23 20:20:56,796 WARN L193 SmtUtils]: Spent 134.00 ms on a formula simplification that was a NOOP. DAG size: 68 [2020-10-23 20:20:57,121 WARN L193 SmtUtils]: Spent 318.00 ms on a formula simplification. DAG size of input: 97 DAG size of output: 76 [2020-10-23 20:20:57,526 WARN L193 SmtUtils]: Spent 294.00 ms on a formula simplification. DAG size of input: 97 DAG size of output: 74 [2020-10-23 20:20:57,896 WARN L193 SmtUtils]: Spent 256.00 ms on a formula simplification. DAG size of input: 93 DAG size of output: 68 [2020-10-23 20:20:58,269 WARN L193 SmtUtils]: Spent 287.00 ms on a formula simplification. DAG size of input: 93 DAG size of output: 71 [2020-10-23 20:20:58,627 WARN L193 SmtUtils]: Spent 259.00 ms on a formula simplification. DAG size of input: 93 DAG size of output: 68 [2020-10-23 20:20:59,011 WARN L193 SmtUtils]: Spent 293.00 ms on a formula simplification. DAG size of input: 98 DAG size of output: 75 [2020-10-23 20:20:59,407 WARN L193 SmtUtils]: Spent 290.00 ms on a formula simplification. DAG size of input: 93 DAG size of output: 71 [2020-10-23 20:20:59,856 WARN L193 SmtUtils]: Spent 346.00 ms on a formula simplification. DAG size of input: 98 DAG size of output: 77 [2020-10-23 20:20:59,970 WARN L193 SmtUtils]: Spent 108.00 ms on a formula simplification that was a NOOP. DAG size: 69 [2020-10-23 20:21:00,265 WARN L193 SmtUtils]: Spent 288.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 67 [2020-10-23 20:21:00,654 WARN L193 SmtUtils]: Spent 288.00 ms on a formula simplification. DAG size of input: 93 DAG size of output: 68 [2020-10-23 20:21:01,027 WARN L193 SmtUtils]: Spent 276.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 67 [2020-10-23 20:21:01,393 WARN L193 SmtUtils]: Spent 279.00 ms on a formula simplification. DAG size of input: 93 DAG size of output: 71 [2020-10-23 20:21:02,041 WARN L193 SmtUtils]: Spent 488.00 ms on a formula simplification. DAG size of input: 168 DAG size of output: 165 [2020-10-23 20:21:02,585 WARN L193 SmtUtils]: Spent 512.00 ms on a formula simplification. DAG size of input: 168 DAG size of output: 165 [2020-10-23 20:21:03,134 WARN L193 SmtUtils]: Spent 509.00 ms on a formula simplification. DAG size of input: 168 DAG size of output: 165 [2020-10-23 20:21:03,704 WARN L193 SmtUtils]: Spent 539.00 ms on a formula simplification. DAG size of input: 168 DAG size of output: 165 [2020-10-23 20:21:03,709 INFO L309 leratedInterpolation]: Starting analysis with loop acceleration approximation UNDERAPPROXIMATION [2020-10-23 20:21:04,220 WARN L193 SmtUtils]: Spent 480.00 ms on a formula simplification. DAG size of input: 167 DAG size of output: 160 [2020-10-23 20:21:04,753 WARN L193 SmtUtils]: Spent 506.00 ms on a formula simplification. DAG size of input: 167 DAG size of output: 159 [2020-10-23 20:21:05,298 WARN L193 SmtUtils]: Spent 515.00 ms on a formula simplification. DAG size of input: 167 DAG size of output: 160 [2020-10-23 20:21:05,831 WARN L193 SmtUtils]: Spent 507.00 ms on a formula simplification. DAG size of input: 167 DAG size of output: 159 [2020-10-23 20:21:05,836 INFO L309 leratedInterpolation]: Starting analysis with loop acceleration approximation UNDERAPPROXIMATION [2020-10-23 20:21:06,393 WARN L193 SmtUtils]: Spent 532.00 ms on a formula simplification. DAG size of input: 167 DAG size of output: 160 [2020-10-23 20:21:06,969 WARN L193 SmtUtils]: Spent 556.00 ms on a formula simplification. DAG size of input: 167 DAG size of output: 159 [2020-10-23 20:21:07,512 WARN L193 SmtUtils]: Spent 516.00 ms on a formula simplification. DAG size of input: 167 DAG size of output: 159 [2020-10-23 20:21:08,044 WARN L193 SmtUtils]: Spent 495.00 ms on a formula simplification. DAG size of input: 167 DAG size of output: 160 [2020-10-23 20:21:08,048 INFO L309 leratedInterpolation]: Starting analysis with loop acceleration approximation UNDERAPPROXIMATION [2020-10-23 20:21:08,617 WARN L193 SmtUtils]: Spent 554.00 ms on a formula simplification. DAG size of input: 167 DAG size of output: 162 [2020-10-23 20:21:09,178 WARN L193 SmtUtils]: Spent 544.00 ms on a formula simplification. DAG size of input: 167 DAG size of output: 162 [2020-10-23 20:21:09,761 WARN L193 SmtUtils]: Spent 551.00 ms on a formula simplification. DAG size of input: 167 DAG size of output: 161 [2020-10-23 20:21:10,308 WARN L193 SmtUtils]: Spent 526.00 ms on a formula simplification. DAG size of input: 167 DAG size of output: 161 [2020-10-23 20:21:10,312 INFO L309 leratedInterpolation]: Starting analysis with loop acceleration approximation UNDERAPPROXIMATION [2020-10-23 20:21:11,205 WARN L193 SmtUtils]: Spent 696.00 ms on a formula simplification. DAG size of input: 212 DAG size of output: 211 [2020-10-23 20:21:12,040 WARN L193 SmtUtils]: Spent 685.00 ms on a formula simplification. DAG size of input: 212 DAG size of output: 211 [2020-10-23 20:21:12,054 INFO L309 leratedInterpolation]: Starting analysis with loop acceleration approximation UNDERAPPROXIMATION [2020-10-23 20:21:12,849 WARN L193 SmtUtils]: Spent 680.00 ms on a formula simplification. DAG size of input: 215 DAG size of output: 213 [2020-10-23 20:21:13,652 WARN L193 SmtUtils]: Spent 678.00 ms on a formula simplification. DAG size of input: 215 DAG size of output: 213 [2020-10-23 20:21:13,659 INFO L309 leratedInterpolation]: Starting analysis with loop acceleration approximation UNDERAPPROXIMATION [2020-10-23 20:21:14,457 WARN L193 SmtUtils]: Spent 691.00 ms on a formula simplification. DAG size of input: 212 DAG size of output: 211 [2020-10-23 20:21:15,204 WARN L193 SmtUtils]: Spent 647.00 ms on a formula simplification. DAG size of input: 212 DAG size of output: 211 [2020-10-23 20:21:15,211 INFO L309 leratedInterpolation]: Starting analysis with loop acceleration approximation UNDERAPPROXIMATION [2020-10-23 20:21:15,790 WARN L193 SmtUtils]: Spent 553.00 ms on a formula simplification. DAG size of input: 169 DAG size of output: 166 [2020-10-23 20:21:16,353 WARN L193 SmtUtils]: Spent 544.00 ms on a formula simplification. DAG size of input: 169 DAG size of output: 166 [2020-10-23 20:21:16,909 WARN L193 SmtUtils]: Spent 533.00 ms on a formula simplification. DAG size of input: 169 DAG size of output: 166 [2020-10-23 20:21:17,493 WARN L193 SmtUtils]: Spent 567.00 ms on a formula simplification. DAG size of input: 169 DAG size of output: 166 [2020-10-23 20:21:17,498 INFO L309 leratedInterpolation]: Starting analysis with loop acceleration approximation UNDERAPPROXIMATION [2020-10-23 20:21:18,260 WARN L193 SmtUtils]: Spent 683.00 ms on a formula simplification. DAG size of input: 215 DAG size of output: 213 [2020-10-23 20:21:19,046 WARN L193 SmtUtils]: Spent 689.00 ms on a formula simplification. DAG size of input: 215 DAG size of output: 213 [2020-10-23 20:21:19,051 INFO L309 leratedInterpolation]: Starting analysis with loop acceleration approximation UNDERAPPROXIMATION [2020-10-23 20:21:19,622 WARN L193 SmtUtils]: Spent 557.00 ms on a formula simplification. DAG size of input: 167 DAG size of output: 162 [2020-10-23 20:21:20,224 WARN L193 SmtUtils]: Spent 582.00 ms on a formula simplification. DAG size of input: 167 DAG size of output: 162 [2020-10-23 20:21:20,822 WARN L193 SmtUtils]: Spent 580.00 ms on a formula simplification. DAG size of input: 167 DAG size of output: 162 [2020-10-23 20:21:21,426 WARN L193 SmtUtils]: Spent 571.00 ms on a formula simplification. DAG size of input: 167 DAG size of output: 162 [2020-10-23 20:21:21,429 INFO L309 leratedInterpolation]: Starting analysis with loop acceleration approximation UNDERAPPROXIMATION [2020-10-23 20:21:22,202 WARN L193 SmtUtils]: Spent 687.00 ms on a formula simplification. DAG size of input: 207 DAG size of output: 204 [2020-10-23 20:21:22,991 WARN L193 SmtUtils]: Spent 682.00 ms on a formula simplification. DAG size of input: 207 DAG size of output: 204 [2020-10-23 20:21:22,997 INFO L309 leratedInterpolation]: Starting analysis with loop acceleration approximation UNDERAPPROXIMATION [2020-10-23 20:21:23,796 WARN L193 SmtUtils]: Spent 714.00 ms on a formula simplification. DAG size of input: 209 DAG size of output: 208 [2020-10-23 20:21:24,588 WARN L193 SmtUtils]: Spent 710.00 ms on a formula simplification. DAG size of input: 209 DAG size of output: 208 [2020-10-23 20:21:24,594 INFO L309 leratedInterpolation]: Starting analysis with loop acceleration approximation UNDERAPPROXIMATION [2020-10-23 20:21:25,396 WARN L193 SmtUtils]: Spent 677.00 ms on a formula simplification. DAG size of input: 207 DAG size of output: 204 [2020-10-23 20:21:26,168 WARN L193 SmtUtils]: Spent 689.00 ms on a formula simplification. DAG size of input: 207 DAG size of output: 204 [2020-10-23 20:21:26,174 INFO L309 leratedInterpolation]: Starting analysis with loop acceleration approximation UNDERAPPROXIMATION [2020-10-23 20:21:26,984 WARN L193 SmtUtils]: Spent 741.00 ms on a formula simplification. DAG size of input: 210 DAG size of output: 208 [2020-10-23 20:21:27,791 WARN L193 SmtUtils]: Spent 726.00 ms on a formula simplification. DAG size of input: 210 DAG size of output: 208 [2020-10-23 20:21:27,803 INFO L309 leratedInterpolation]: Starting analysis with loop acceleration approximation UNDERAPPROXIMATION [2020-10-23 20:21:27,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-23 20:21:27,946 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-23 20:21:28,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-23 20:21:28,097 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-23 20:21:28,274 INFO L173 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2020-10-23 20:21:28,274 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-10-23 20:21:28,277 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-10-23 20:21:28,326 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 23.10 08:21:28 BoogieIcfgContainer [2020-10-23 20:21:28,327 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-23 20:21:28,328 INFO L168 Benchmark]: Toolchain (without parser) took 97896.29 ms. Allocated memory was 153.1 MB in the beginning and 1.0 GB in the end (delta: 865.1 MB). Free memory was 129.3 MB in the beginning and 377.5 MB in the end (delta: -248.2 MB). Peak memory consumption was 617.3 MB. Max. memory is 8.0 GB. [2020-10-23 20:21:28,329 INFO L168 Benchmark]: CDTParser took 1.14 ms. Allocated memory is still 153.1 MB. Free memory is still 129.1 MB. There was no memory consumed. Max. memory is 8.0 GB. [2020-10-23 20:21:28,330 INFO L168 Benchmark]: CACSL2BoogieTranslator took 636.67 ms. Allocated memory is still 153.1 MB. Free memory was 128.6 MB in the beginning and 106.9 MB in the end (delta: 21.6 MB). Peak memory consumption was 21.0 MB. Max. memory is 8.0 GB. [2020-10-23 20:21:28,330 INFO L168 Benchmark]: Boogie Preprocessor took 146.47 ms. Allocated memory is still 153.1 MB. Free memory was 106.9 MB in the beginning and 134.9 MB in the end (delta: -27.9 MB). Peak memory consumption was 7.5 MB. Max. memory is 8.0 GB. [2020-10-23 20:21:28,331 INFO L168 Benchmark]: RCFGBuilder took 1302.31 ms. Allocated memory is still 153.1 MB. Free memory was 134.9 MB in the beginning and 91.0 MB in the end (delta: 43.9 MB). Peak memory consumption was 65.4 MB. Max. memory is 8.0 GB. [2020-10-23 20:21:28,332 INFO L168 Benchmark]: TraceAbstraction took 95791.40 ms. Allocated memory was 153.1 MB in the beginning and 1.0 GB in the end (delta: 865.1 MB). Free memory was 90.5 MB in the beginning and 377.5 MB in the end (delta: -287.0 MB). Peak memory consumption was 578.0 MB. Max. memory is 8.0 GB. [2020-10-23 20:21:28,334 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 1.14 ms. Allocated memory is still 153.1 MB. Free memory is still 129.1 MB. There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 636.67 ms. Allocated memory is still 153.1 MB. Free memory was 128.6 MB in the beginning and 106.9 MB in the end (delta: 21.6 MB). Peak memory consumption was 21.0 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 146.47 ms. Allocated memory is still 153.1 MB. Free memory was 106.9 MB in the beginning and 134.9 MB in the end (delta: -27.9 MB). Peak memory consumption was 7.5 MB. Max. memory is 8.0 GB. * RCFGBuilder took 1302.31 ms. Allocated memory is still 153.1 MB. Free memory was 134.9 MB in the beginning and 91.0 MB in the end (delta: 43.9 MB). Peak memory consumption was 65.4 MB. Max. memory is 8.0 GB. * TraceAbstraction took 95791.40 ms. Allocated memory was 153.1 MB in the beginning and 1.0 GB in the end (delta: 865.1 MB). Free memory was 90.5 MB in the beginning and 377.5 MB in the end (delta: -287.0 MB). Peak memory consumption was 578.0 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: [L53] int pumpRunning = 0; [L54] int systemActive = 1; [L500] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L699] int switchedOnBeforeTS ; [L748] int cleanupTimeShifts = 4; [L892] int waterLevel = 1; [L893] int methaneLevelCritical = 0; [L825] int retValue_acc ; [L826] int tmp ; [L830] FCALL select_helpers() [L831] FCALL select_features() [L832] CALL, EXPR valid_product() [L883] int retValue_acc ; [L886] retValue_acc = 1 [L887] return (retValue_acc); [L832] RET, EXPR valid_product() [L832] tmp = valid_product() [L834] COND TRUE \read(tmp) [L836] FCALL setup() [L837] CALL runTest() [L815] CALL __utac_acc__Specification5_spec__1() [L704] switchedOnBeforeTS = 0 [L815] RET __utac_acc__Specification5_spec__1() [L816] CALL test() [L263] int splverifierCounter ; [L264] int tmp ; [L265] int tmp___0 ; [L266] int tmp___1 ; [L267] int tmp___2 ; [L270] splverifierCounter = 0 [L272] COND TRUE 1 [L274] COND TRUE splverifierCounter < 4 [L280] tmp = __VERIFIER_nondet_int() [L282] COND TRUE \read(tmp) [L284] CALL waterRise() [L910] COND TRUE waterLevel < 2 [L911] waterLevel = waterLevel + 1 [L284] RET waterRise() [L290] tmp___0 = __VERIFIER_nondet_int() [L292] COND FALSE !(\read(tmp___0)) [L300] tmp___2 = __VERIFIER_nondet_int() [L302] COND TRUE \read(tmp___2) [L304] CALL startSystem() [L254] systemActive = 1 [L304] RET startSystem() [L319] CALL timeShift() [L63] CALL __utac_acc__Specification5_spec__2() [L713] CALL, EXPR isPumpRunning() [L172] int retValue_acc ; [L175] retValue_acc = pumpRunning [L176] return (retValue_acc); [L713] RET, EXPR isPumpRunning() [L713] switchedOnBeforeTS = isPumpRunning() [L63] RET __utac_acc__Specification5_spec__2() [L65] COND FALSE !(\read(pumpRunning)) [L72] COND TRUE \read(systemActive) [L74] CALL processEnvironment() [L120] int tmp ; [L123] COND FALSE !(\read(pumpRunning)) [L138] CALL processEnvironment__wrappee__highWaterSensor() [L94] int tmp ; [L97] COND TRUE ! pumpRunning [L99] CALL, EXPR isHighWaterLevel() [L217] int retValue_acc ; [L218] int tmp ; [L219] int tmp___0 ; [L223] CALL, EXPR isHighWaterSensorDry() [L972] int retValue_acc ; [L975] COND FALSE !(waterLevel < 2) [L979] retValue_acc = 0 [L980] return (retValue_acc); [L223] RET, EXPR isHighWaterSensorDry() [L223] tmp = isHighWaterSensorDry() [L225] COND FALSE !(\read(tmp)) [L228] tmp___0 = 1 [L230] retValue_acc = tmp___0 [L231] return (retValue_acc); [L99] RET, EXPR isHighWaterLevel() [L99] tmp = isHighWaterLevel() [L101] COND TRUE \read(tmp) [L103] CALL activatePump() [L148] pumpRunning = 1 [L103] RET activatePump() [L138] RET processEnvironment__wrappee__highWaterSensor() [L74] RET processEnvironment() [L80] CALL __utac_acc__Specification5_spec__3() [L719] int tmp ; [L720] int tmp___0 ; [L724] CALL, EXPR getWaterLevel() [L963] int retValue_acc ; [L966] retValue_acc = waterLevel [L967] return (retValue_acc); [L724] RET, EXPR getWaterLevel() [L724] tmp = getWaterLevel() [L726] COND FALSE !(tmp != 2) [L80] RET __utac_acc__Specification5_spec__3() [L319] RET timeShift() [L272] COND TRUE 1 [L274] COND TRUE splverifierCounter < 4 [L280] tmp = __VERIFIER_nondet_int() [L282] COND FALSE !(\read(tmp)) [L290] tmp___0 = __VERIFIER_nondet_int() [L292] COND FALSE !(\read(tmp___0)) [L300] tmp___2 = __VERIFIER_nondet_int() [L302] COND TRUE \read(tmp___2) [L304] CALL startSystem() [L254] systemActive = 1 [L304] RET startSystem() [L319] CALL timeShift() [L63] CALL __utac_acc__Specification5_spec__2() [L713] CALL, EXPR isPumpRunning() [L172] int retValue_acc ; [L175] retValue_acc = pumpRunning [L176] return (retValue_acc); [L713] RET, EXPR isPumpRunning() [L713] switchedOnBeforeTS = isPumpRunning() [L63] RET __utac_acc__Specification5_spec__2() [L65] COND TRUE \read(pumpRunning) [L67] CALL lowerWaterLevel() [L898] COND TRUE waterLevel > 0 [L899] waterLevel = waterLevel - 1 [L67] RET lowerWaterLevel() [L72] COND TRUE \read(systemActive) [L74] CALL processEnvironment() [L120] int tmp ; [L123] COND TRUE \read(pumpRunning) [L125] CALL, EXPR isMethaneAlarm() [L161] int retValue_acc ; [L165] CALL, EXPR isMethaneLevelCritical() [L931] int retValue_acc ; [L934] retValue_acc = methaneLevelCritical [L935] return (retValue_acc); [L165] RET, EXPR isMethaneLevelCritical() [L165] retValue_acc = isMethaneLevelCritical() [L167] return (retValue_acc); [L125] RET, EXPR isMethaneAlarm() [L125] tmp = isMethaneAlarm() [L127] COND FALSE !(\read(tmp)) [L133] CALL processEnvironment__wrappee__highWaterSensor() [L94] int tmp ; [L97] COND FALSE !(! pumpRunning) [L112] FCALL processEnvironment__wrappee__base() [L133] RET processEnvironment__wrappee__highWaterSensor() [L74] RET processEnvironment() [L80] CALL __utac_acc__Specification5_spec__3() [L719] int tmp ; [L720] int tmp___0 ; [L724] CALL, EXPR getWaterLevel() [L963] int retValue_acc ; [L966] retValue_acc = waterLevel [L967] return (retValue_acc); [L724] RET, EXPR getWaterLevel() [L724] tmp = getWaterLevel() [L726] COND TRUE tmp != 2 [L728] CALL, EXPR isPumpRunning() [L172] int retValue_acc ; [L175] retValue_acc = pumpRunning [L176] return (retValue_acc); [L728] RET, EXPR isPumpRunning() [L728] tmp___0 = isPumpRunning() [L730] COND TRUE \read(tmp___0) [L731] COND TRUE ! switchedOnBeforeTS [L733] CALL __automaton_fail() [L852] CALL reach_error() [L3] __assert_fail("0", "minepump_spec5_product40.cil.c", 3, "reach_error") - StatisticsResult: Ultimate Automizer benchmark data CFG has 43 procedures, 654 locations, 5 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 95.6s, OverallIterations: 9, TraceHistogramMax: 3, AutomataDifference: 53.9s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 2284 SDtfs, 6785 SDslu, 5204 SDs, 0 SdLazy, 11027 SolverSat, 2379 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 22.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 450 GetRequests, 267 SyntacticMatches, 3 SemanticMatches, 180 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1656 ImplicationChecksByTransitivity, 27.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=2535occurred in iteration=8, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 3.0s AutomataMinimizationTime, 8 MinimizatonAttempts, 1660 StatesRemovedByMinimization, 8 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...