/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_product36.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.2.0-b8ad66e [2020-10-23 20:19:39,251 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-23 20:19:39,254 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-23 20:19:39,288 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-23 20:19:39,289 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-23 20:19:39,290 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-23 20:19:39,292 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-23 20:19:39,294 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-23 20:19:39,297 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-23 20:19:39,298 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-23 20:19:39,299 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-23 20:19:39,300 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-23 20:19:39,301 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-23 20:19:39,302 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-23 20:19:39,304 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-23 20:19:39,305 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-23 20:19:39,306 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-23 20:19:39,307 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-23 20:19:39,322 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-23 20:19:39,327 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-23 20:19:39,334 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-23 20:19:39,339 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-23 20:19:39,341 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-23 20:19:39,342 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-23 20:19:39,347 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-23 20:19:39,348 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-23 20:19:39,348 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-23 20:19:39,354 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-23 20:19:39,355 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-23 20:19:39,356 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-23 20:19:39,356 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-23 20:19:39,357 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-23 20:19:39,359 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-23 20:19:39,360 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-23 20:19:39,361 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-23 20:19:39,365 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-23 20:19:39,366 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-23 20:19:39,366 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-23 20:19:39,367 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-23 20:19:39,368 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-23 20:19:39,369 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-23 20:19:39,371 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 20:19:39,388 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-23 20:19:39,388 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-23 20:19:39,393 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-23 20:19:39,393 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-23 20:19:39,393 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-23 20:19:39,394 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-23 20:19:39,394 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-23 20:19:39,394 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-23 20:19:39,394 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-23 20:19:39,394 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-23 20:19:39,395 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-23 20:19:39,396 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-23 20:19:39,396 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-23 20:19:39,396 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-23 20:19:39,396 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-23 20:19:39,397 INFO L138 SettingsManager]: * Size of a code block=SingleStatement [2020-10-23 20:19:39,397 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-23 20:19:39,397 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-23 20:19:39,397 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-23 20:19:39,397 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-23 20:19:39,398 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=AcceleratedInterpolation [2020-10-23 20:19:39,398 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-23 20:19:39,398 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2020-10-23 20:19:39,772 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-23 20:19:39,797 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-23 20:19:39,800 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-23 20:19:39,802 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-23 20:19:39,802 INFO L275 PluginConnector]: CDTParser initialized [2020-10-23 20:19:39,803 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec5_product36.cil.c [2020-10-23 20:19:39,878 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3fefc8181/ba32cc6f3c0942c3b7f0d43d5f47c14c/FLAGc67a1eed8 [2020-10-23 20:19:40,670 INFO L306 CDTParser]: Found 1 translation units. [2020-10-23 20:19:40,671 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/minepump_spec5_product36.cil.c [2020-10-23 20:19:40,694 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3fefc8181/ba32cc6f3c0942c3b7f0d43d5f47c14c/FLAGc67a1eed8 [2020-10-23 20:19:40,927 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3fefc8181/ba32cc6f3c0942c3b7f0d43d5f47c14c [2020-10-23 20:19:40,930 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-23 20:19:40,947 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-23 20:19:40,951 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-23 20:19:40,952 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-23 20:19:40,955 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-23 20:19:40,956 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.10 08:19:40" (1/1) ... [2020-10-23 20:19:40,960 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2c1ddb63 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 08:19:40, skipping insertion in model container [2020-10-23 20:19:40,961 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.10 08:19:40" (1/1) ... [2020-10-23 20:19:40,969 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-23 20:19:41,042 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-23 20:19:41,443 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-23 20:19:41,463 INFO L203 MainTranslator]: Completed pre-run [2020-10-23 20:19:41,602 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-23 20:19:41,659 INFO L208 MainTranslator]: Completed translation [2020-10-23 20:19:41,660 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 08:19:41 WrapperNode [2020-10-23 20:19:41,660 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-23 20:19:41,661 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-23 20:19:41,662 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-23 20:19:41,662 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-23 20:19:41,677 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 08:19:41" (1/1) ... [2020-10-23 20:19:41,677 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 08:19:41" (1/1) ... [2020-10-23 20:19:41,720 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 08:19:41" (1/1) ... [2020-10-23 20:19:41,721 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 08:19:41" (1/1) ... [2020-10-23 20:19:41,775 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 08:19:41" (1/1) ... [2020-10-23 20:19:41,783 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 08:19:41" (1/1) ... [2020-10-23 20:19:41,788 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 08:19:41" (1/1) ... [2020-10-23 20:19:41,796 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-23 20:19:41,797 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-23 20:19:41,797 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-23 20:19:41,797 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-23 20:19:41,801 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 08:19:41" (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 20:19:41,903 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-23 20:19:41,903 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-23 20:19:41,904 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2020-10-23 20:19:41,904 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2020-10-23 20:19:41,905 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2020-10-23 20:19:41,905 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2020-10-23 20:19:41,905 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2020-10-23 20:19:41,906 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2020-10-23 20:19:41,906 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2020-10-23 20:19:41,906 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2020-10-23 20:19:41,907 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2020-10-23 20:19:41,907 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2020-10-23 20:19:41,907 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2020-10-23 20:19:41,907 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2020-10-23 20:19:41,908 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2020-10-23 20:19:41,916 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2020-10-23 20:19:41,916 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2020-10-23 20:19:41,917 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterLevel [2020-10-23 20:19:41,917 INFO L138 BoogieDeclarations]: Found implementation of procedure stopSystem [2020-10-23 20:19:41,918 INFO L138 BoogieDeclarations]: Found implementation of procedure startSystem [2020-10-23 20:19:41,918 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2020-10-23 20:19:41,919 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2020-10-23 20:19:41,921 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2020-10-23 20:19:41,921 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2020-10-23 20:19:41,922 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2020-10-23 20:19:41,922 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2020-10-23 20:19:41,922 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2020-10-23 20:19:41,922 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2020-10-23 20:19:41,923 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2020-10-23 20:19:41,923 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2020-10-23 20:19:41,923 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2020-10-23 20:19:41,923 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-23 20:19:41,923 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification5_spec__1 [2020-10-23 20:19:41,924 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification5_spec__2 [2020-10-23 20:19:41,924 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification5_spec__3 [2020-10-23 20:19:41,924 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2020-10-23 20:19:41,924 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2020-10-23 20:19:41,924 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2020-10-23 20:19:41,925 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2020-10-23 20:19:41,925 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2020-10-23 20:19:41,925 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2020-10-23 20:19:41,925 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterSensorDry [2020-10-23 20:19:41,925 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-10-23 20:19:41,926 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-10-23 20:19:41,926 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2020-10-23 20:19:41,926 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-23 20:19:41,926 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-10-23 20:19:41,926 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2020-10-23 20:19:41,926 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2020-10-23 20:19:41,927 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2020-10-23 20:19:41,927 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2020-10-23 20:19:41,927 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2020-10-23 20:19:41,927 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2020-10-23 20:19:41,927 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2020-10-23 20:19:41,927 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2020-10-23 20:19:41,927 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2020-10-23 20:19:41,928 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterSensorDry [2020-10-23 20:19:41,928 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2020-10-23 20:19:41,928 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2020-10-23 20:19:41,928 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2020-10-23 20:19:41,928 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2020-10-23 20:19:41,928 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2020-10-23 20:19:41,928 INFO L130 BoogieDeclarations]: Found specification of procedure stopSystem [2020-10-23 20:19:41,929 INFO L130 BoogieDeclarations]: Found specification of procedure startSystem [2020-10-23 20:19:41,929 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification5_spec__2 [2020-10-23 20:19:41,929 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification5_spec__3 [2020-10-23 20:19:41,929 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2020-10-23 20:19:41,929 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2020-10-23 20:19:41,929 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterLevel [2020-10-23 20:19:41,930 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2020-10-23 20:19:41,930 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-10-23 20:19:41,930 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-10-23 20:19:41,930 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2020-10-23 20:19:41,931 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-10-23 20:19:41,931 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-10-23 20:19:41,931 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-23 20:19:41,932 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-10-23 20:19:41,932 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2020-10-23 20:19:41,932 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-23 20:19:41,932 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2020-10-23 20:19:41,933 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2020-10-23 20:19:41,933 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-10-23 20:19:41,933 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2020-10-23 20:19:41,934 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2020-10-23 20:19:41,934 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2020-10-23 20:19:41,934 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2020-10-23 20:19:41,935 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2020-10-23 20:19:41,935 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2020-10-23 20:19:41,936 INFO L130 BoogieDeclarations]: Found specification of procedure test [2020-10-23 20:19:41,936 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2020-10-23 20:19:41,936 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2020-10-23 20:19:41,939 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification5_spec__1 [2020-10-23 20:19:41,939 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2020-10-23 20:19:41,939 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-23 20:19:41,940 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2020-10-23 20:19:41,940 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-23 20:19:41,941 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-23 20:19:41,941 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-23 20:19:43,578 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-23 20:19:43,579 INFO L298 CfgBuilder]: Removed 5 assume(true) statements. [2020-10-23 20:19:43,581 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.10 08:19:43 BoogieIcfgContainer [2020-10-23 20:19:43,582 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-23 20:19:43,583 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-23 20:19:43,584 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-23 20:19:43,587 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-23 20:19:43,588 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.10 08:19:40" (1/3) ... [2020-10-23 20:19:43,588 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1c221af7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.10 08:19:43, skipping insertion in model container [2020-10-23 20:19:43,589 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 08:19:41" (2/3) ... [2020-10-23 20:19:43,589 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1c221af7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.10 08:19:43, skipping insertion in model container [2020-10-23 20:19:43,589 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.10 08:19:43" (3/3) ... [2020-10-23 20:19:43,591 INFO L111 eAbstractionObserver]: Analyzing ICFG minepump_spec5_product36.cil.c [2020-10-23 20:19:43,603 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:AcceleratedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-23 20:19:43,609 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 5 error locations. [2020-10-23 20:19:43,623 INFO L253 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2020-10-23 20:19:43,648 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-23 20:19:43,648 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-23 20:19:43,648 INFO L379 AbstractCegarLoop]: Compute interpolants for AcceleratedInterpolation [2020-10-23 20:19:43,649 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-23 20:19:43,649 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-23 20:19:43,649 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-23 20:19:43,649 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-23 20:19:43,649 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-23 20:19:43,672 INFO L276 IsEmpty]: Start isEmpty. Operand 313 states. [2020-10-23 20:19:43,693 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 167 [2020-10-23 20:19:43,693 INFO L414 BasicCegarLoop]: Found error trace [2020-10-23 20:19:43,694 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 20:19:43,695 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 20:19:43,701 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-23 20:19:43,701 INFO L82 PathProgramCache]: Analyzing trace with hash -1773760164, now seen corresponding path program 1 times [2020-10-23 20:19:43,711 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-23 20:19:43,712 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1816695671] [2020-10-23 20:19:43,712 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-23 20:19:43,792 INFO L321 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-10-23 20:19:44,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:19:44,921 WARN L193 SmtUtils]: Spent 692.00 ms on a formula simplification that was a NOOP. DAG size: 205 [2020-10-23 20:19:44,925 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-23 20:19:44,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:19:45,057 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-10-23 20:19:45,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:19:45,060 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2020-10-23 20:19:45,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:19:45,063 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2020-10-23 20:19:45,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:19:45,065 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2020-10-23 20:19:45,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:19:45,075 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2020-10-23 20:19:45,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:19:45,079 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2020-10-23 20:19:45,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:19:45,085 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-23 20:19:45,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:19:45,088 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2020-10-23 20:19:45,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:19:45,091 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 152 [2020-10-23 20:19:45,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:19:45,161 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 20:19:45,162 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1816695671] [2020-10-23 20:19:45,164 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-23 20:19:45,165 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-23 20:19:45,165 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [108391173] [2020-10-23 20:19:45,170 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-23 20:19:45,171 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-23 20:19:45,184 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-23 20:19:45,185 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-10-23 20:19:45,187 INFO L87 Difference]: Start difference. First operand 313 states. Second operand 4 states. [2020-10-23 20:19:46,824 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-23 20:19:46,824 INFO L93 Difference]: Finished difference Result 478 states and 562 transitions. [2020-10-23 20:19:46,825 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-23 20:19:46,826 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 166 [2020-10-23 20:19:46,828 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-23 20:19:46,845 INFO L225 Difference]: With dead ends: 478 [2020-10-23 20:19:46,845 INFO L226 Difference]: Without dead ends: 306 [2020-10-23 20:19:46,850 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-10-23 20:19:46,871 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 306 states. [2020-10-23 20:19:47,076 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 306 to 259. [2020-10-23 20:19:47,078 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 259 states. [2020-10-23 20:19:47,085 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 259 states to 259 states and 280 transitions. [2020-10-23 20:19:47,088 INFO L78 Accepts]: Start accepts. Automaton has 259 states and 280 transitions. Word has length 166 [2020-10-23 20:19:47,091 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-23 20:19:47,091 INFO L481 AbstractCegarLoop]: Abstraction has 259 states and 280 transitions. [2020-10-23 20:19:47,091 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-23 20:19:47,091 INFO L276 IsEmpty]: Start isEmpty. Operand 259 states and 280 transitions. [2020-10-23 20:19:47,108 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 168 [2020-10-23 20:19:47,109 INFO L414 BasicCegarLoop]: Found error trace [2020-10-23 20:19:47,110 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 20:19:47,110 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-23 20:19:47,111 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 20:19:47,111 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-23 20:19:47,111 INFO L82 PathProgramCache]: Analyzing trace with hash 503706964, now seen corresponding path program 1 times [2020-10-23 20:19:47,112 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-23 20:19:47,112 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [764498420] [2020-10-23 20:19:47,113 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-23 20:19:47,123 INFO L321 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-10-23 20:19:47,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:19:47,718 WARN L193 SmtUtils]: Spent 349.00 ms on a formula simplification that was a NOOP. DAG size: 205 [2020-10-23 20:19:47,720 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-23 20:19:47,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:19:47,808 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-10-23 20:19:47,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:19:47,811 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2020-10-23 20:19:47,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:19:47,812 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2020-10-23 20:19:47,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:19:47,816 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2020-10-23 20:19:47,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:19:47,831 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2020-10-23 20:19:47,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:19:47,834 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2020-10-23 20:19:47,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:19:47,838 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-23 20:19:47,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:19:47,844 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2020-10-23 20:19:47,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:19:47,846 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 153 [2020-10-23 20:19:47,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:19:47,887 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 20:19:47,887 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [764498420] [2020-10-23 20:19:47,887 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-23 20:19:47,888 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-10-23 20:19:47,888 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [682902054] [2020-10-23 20:19:47,890 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-23 20:19:47,892 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-23 20:19:47,893 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-23 20:19:47,894 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-23 20:19:47,894 INFO L87 Difference]: Start difference. First operand 259 states and 280 transitions. Second operand 5 states. [2020-10-23 20:19:48,912 WARN L193 SmtUtils]: Spent 364.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2020-10-23 20:19:50,108 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-23 20:19:50,109 INFO L93 Difference]: Finished difference Result 391 states and 440 transitions. [2020-10-23 20:19:50,109 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-23 20:19:50,109 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 167 [2020-10-23 20:19:50,110 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-23 20:19:50,115 INFO L225 Difference]: With dead ends: 391 [2020-10-23 20:19:50,115 INFO L226 Difference]: Without dead ends: 295 [2020-10-23 20:19:50,117 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 20:19:50,119 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 295 states. [2020-10-23 20:19:50,222 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 295 to 249. [2020-10-23 20:19:50,222 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 249 states. [2020-10-23 20:19:50,224 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 249 states to 249 states and 267 transitions. [2020-10-23 20:19:50,224 INFO L78 Accepts]: Start accepts. Automaton has 249 states and 267 transitions. Word has length 167 [2020-10-23 20:19:50,225 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-23 20:19:50,225 INFO L481 AbstractCegarLoop]: Abstraction has 249 states and 267 transitions. [2020-10-23 20:19:50,225 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-23 20:19:50,226 INFO L276 IsEmpty]: Start isEmpty. Operand 249 states and 267 transitions. [2020-10-23 20:19:50,228 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 181 [2020-10-23 20:19:50,228 INFO L414 BasicCegarLoop]: Found error trace [2020-10-23 20:19:50,228 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 20:19:50,229 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-23 20:19:50,229 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 20:19:50,229 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-23 20:19:50,230 INFO L82 PathProgramCache]: Analyzing trace with hash 1464021977, now seen corresponding path program 1 times [2020-10-23 20:19:50,230 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-23 20:19:50,230 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [47512969] [2020-10-23 20:19:50,230 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-23 20:19:50,234 INFO L321 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-10-23 20:19:50,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:19:50,741 WARN L193 SmtUtils]: Spent 366.00 ms on a formula simplification that was a NOOP. DAG size: 205 [2020-10-23 20:19:50,743 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-23 20:19:50,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:19:50,783 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-10-23 20:19:50,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:19:50,785 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2020-10-23 20:19:50,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:19:50,787 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2020-10-23 20:19:50,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:19:50,847 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2020-10-23 20:19:50,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:19:50,864 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2020-10-23 20:19:50,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:19:50,885 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2020-10-23 20:19:50,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:19:50,905 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2020-10-23 20:19:50,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:19:50,909 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-23 20:19:50,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:19:50,914 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 156 [2020-10-23 20:19:50,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:19:50,921 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 166 [2020-10-23 20:19:50,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:19:51,009 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 20:19:51,010 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [47512969] [2020-10-23 20:19:51,010 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-23 20:19:51,010 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2020-10-23 20:19:51,010 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1014236628] [2020-10-23 20:19:51,012 INFO L461 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-10-23 20:19:51,012 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-23 20:19:51,013 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-10-23 20:19:51,014 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2020-10-23 20:19:51,014 INFO L87 Difference]: Start difference. First operand 249 states and 267 transitions. Second operand 11 states. [2020-10-23 20:19:51,846 WARN L193 SmtUtils]: Spent 364.00 ms on a formula simplification that was a NOOP. DAG size: 207 [2020-10-23 20:19:52,340 WARN L193 SmtUtils]: Spent 369.00 ms on a formula simplification that was a NOOP. DAG size: 210 [2020-10-23 20:19:52,792 WARN L193 SmtUtils]: Spent 417.00 ms on a formula simplification that was a NOOP. DAG size: 213 [2020-10-23 20:19:53,211 WARN L193 SmtUtils]: Spent 362.00 ms on a formula simplification that was a NOOP. DAG size: 209 [2020-10-23 20:19:53,700 WARN L193 SmtUtils]: Spent 441.00 ms on a formula simplification that was a NOOP. DAG size: 211 [2020-10-23 20:19:54,117 WARN L193 SmtUtils]: Spent 380.00 ms on a formula simplification that was a NOOP. DAG size: 209 [2020-10-23 20:19:55,715 WARN L193 SmtUtils]: Spent 375.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2020-10-23 20:19:58,318 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-23 20:19:58,318 INFO L93 Difference]: Finished difference Result 671 states and 779 transitions. [2020-10-23 20:19:58,323 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2020-10-23 20:19:58,323 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 180 [2020-10-23 20:19:58,324 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-23 20:19:58,333 INFO L225 Difference]: With dead ends: 671 [2020-10-23 20:19:58,333 INFO L226 Difference]: Without dead ends: 542 [2020-10-23 20:19:58,335 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 51 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 81 ImplicationChecksByTransitivity, 3.4s TimeCoverageRelationStatistics Valid=168, Invalid=384, Unknown=0, NotChecked=0, Total=552 [2020-10-23 20:19:58,342 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 542 states. [2020-10-23 20:19:58,532 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 542 to 433. [2020-10-23 20:19:58,532 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 433 states. [2020-10-23 20:19:58,535 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 433 states to 433 states and 481 transitions. [2020-10-23 20:19:58,536 INFO L78 Accepts]: Start accepts. Automaton has 433 states and 481 transitions. Word has length 180 [2020-10-23 20:19:58,537 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-23 20:19:58,537 INFO L481 AbstractCegarLoop]: Abstraction has 433 states and 481 transitions. [2020-10-23 20:19:58,537 INFO L482 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-10-23 20:19:58,537 INFO L276 IsEmpty]: Start isEmpty. Operand 433 states and 481 transitions. [2020-10-23 20:19:58,540 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 186 [2020-10-23 20:19:58,540 INFO L414 BasicCegarLoop]: Found error trace [2020-10-23 20:19:58,541 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 20:19:58,541 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-23 20:19:58,541 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 20:19:58,542 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-23 20:19:58,542 INFO L82 PathProgramCache]: Analyzing trace with hash -45062135, now seen corresponding path program 1 times [2020-10-23 20:19:58,542 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-23 20:19:58,542 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [9991508] [2020-10-23 20:19:58,543 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-23 20:19:58,547 INFO L321 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-10-23 20:19:58,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:19:59,022 WARN L193 SmtUtils]: Spent 322.00 ms on a formula simplification that was a NOOP. DAG size: 205 [2020-10-23 20:19:59,025 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-23 20:19:59,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:19:59,086 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-10-23 20:19:59,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:19:59,089 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2020-10-23 20:19:59,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:19:59,092 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2020-10-23 20:19:59,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:19:59,095 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2020-10-23 20:19:59,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:19:59,113 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2020-10-23 20:19:59,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:19:59,133 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 138 [2020-10-23 20:19:59,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:19:59,136 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 144 [2020-10-23 20:19:59,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:19:59,142 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-23 20:19:59,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:19:59,146 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 161 [2020-10-23 20:19:59,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:19:59,150 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 171 [2020-10-23 20:19:59,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:19:59,240 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 20:19:59,240 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [9991508] [2020-10-23 20:19:59,241 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-23 20:19:59,241 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-10-23 20:19:59,241 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [885230241] [2020-10-23 20:19:59,243 INFO L461 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-10-23 20:19:59,243 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-23 20:19:59,245 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-10-23 20:19:59,245 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2020-10-23 20:19:59,246 INFO L87 Difference]: Start difference. First operand 433 states and 481 transitions. Second operand 10 states. [2020-10-23 20:19:59,980 WARN L193 SmtUtils]: Spent 353.00 ms on a formula simplification that was a NOOP. DAG size: 207 [2020-10-23 20:20:01,140 WARN L193 SmtUtils]: Spent 337.00 ms on a formula simplification that was a NOOP. DAG size: 209 [2020-10-23 20:20:01,557 WARN L193 SmtUtils]: Spent 363.00 ms on a formula simplification that was a NOOP. DAG size: 211 [2020-10-23 20:20:02,845 WARN L193 SmtUtils]: Spent 343.00 ms on a formula simplification that was a NOOP. DAG size: 207 [2020-10-23 20:20:03,272 WARN L193 SmtUtils]: Spent 361.00 ms on a formula simplification that was a NOOP. DAG size: 209 [2020-10-23 20:20:03,757 WARN L193 SmtUtils]: Spent 351.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2020-10-23 20:20:04,140 WARN L193 SmtUtils]: Spent 334.00 ms on a formula simplification that was a NOOP. DAG size: 209 [2020-10-23 20:20:04,606 WARN L193 SmtUtils]: Spent 357.00 ms on a formula simplification that was a NOOP. DAG size: 211 [2020-10-23 20:20:05,013 WARN L193 SmtUtils]: Spent 363.00 ms on a formula simplification that was a NOOP. DAG size: 209 [2020-10-23 20:20:05,853 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-23 20:20:05,854 INFO L93 Difference]: Finished difference Result 991 states and 1176 transitions. [2020-10-23 20:20:05,855 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2020-10-23 20:20:05,855 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 185 [2020-10-23 20:20:05,856 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-23 20:20:05,863 INFO L225 Difference]: With dead ends: 991 [2020-10-23 20:20:05,863 INFO L226 Difference]: Without dead ends: 678 [2020-10-23 20:20:05,865 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 55 ImplicationChecksByTransitivity, 3.8s TimeCoverageRelationStatistics Valid=143, Invalid=363, Unknown=0, NotChecked=0, Total=506 [2020-10-23 20:20:05,867 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 678 states. [2020-10-23 20:20:06,150 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 678 to 589. [2020-10-23 20:20:06,151 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 589 states. [2020-10-23 20:20:06,158 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 589 states to 589 states and 659 transitions. [2020-10-23 20:20:06,159 INFO L78 Accepts]: Start accepts. Automaton has 589 states and 659 transitions. Word has length 185 [2020-10-23 20:20:06,162 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-23 20:20:06,162 INFO L481 AbstractCegarLoop]: Abstraction has 589 states and 659 transitions. [2020-10-23 20:20:06,162 INFO L482 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-10-23 20:20:06,162 INFO L276 IsEmpty]: Start isEmpty. Operand 589 states and 659 transitions. [2020-10-23 20:20:06,166 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 214 [2020-10-23 20:20:06,166 INFO L414 BasicCegarLoop]: Found error trace [2020-10-23 20:20:06,167 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] [2020-10-23 20:20:06,167 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-23 20:20:06,168 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 20:20:06,168 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-23 20:20:06,168 INFO L82 PathProgramCache]: Analyzing trace with hash 927560967, now seen corresponding path program 1 times [2020-10-23 20:20:06,169 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-23 20:20:06,169 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [61321434] [2020-10-23 20:20:06,169 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-23 20:20:06,174 INFO L321 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-10-23 20:20:06,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:20:06,606 WARN L193 SmtUtils]: Spent 310.00 ms on a formula simplification that was a NOOP. DAG size: 205 [2020-10-23 20:20:06,607 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-23 20:20:06,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:20:06,648 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-10-23 20:20:06,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:20:06,651 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2020-10-23 20:20:06,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:20:06,653 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2020-10-23 20:20:06,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:20:06,706 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2020-10-23 20:20:06,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:20:06,723 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2020-10-23 20:20:06,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:20:06,738 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2020-10-23 20:20:06,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:20:06,741 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2020-10-23 20:20:06,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:20:06,744 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-23 20:20:06,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:20:06,760 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 153 [2020-10-23 20:20:06,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:20:06,770 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-23 20:20:06,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:20:06,810 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-23 20:20:06,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:20:06,852 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-10-23 20:20:06,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:20:06,856 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 189 [2020-10-23 20:20:06,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:20:06,858 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 199 [2020-10-23 20:20:06,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:20:06,929 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 20:20:06,929 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [61321434] [2020-10-23 20:20:06,930 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-23 20:20:06,930 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2020-10-23 20:20:06,930 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [152171234] [2020-10-23 20:20:06,930 INFO L461 AbstractCegarLoop]: Interpolant automaton has 14 states [2020-10-23 20:20:06,931 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-23 20:20:06,931 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2020-10-23 20:20:06,931 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=154, Unknown=0, NotChecked=0, Total=182 [2020-10-23 20:20:06,932 INFO L87 Difference]: Start difference. First operand 589 states and 659 transitions. Second operand 14 states. [2020-10-23 20:20:07,799 WARN L193 SmtUtils]: Spent 373.00 ms on a formula simplification that was a NOOP. DAG size: 209 [2020-10-23 20:20:08,202 WARN L193 SmtUtils]: Spent 370.00 ms on a formula simplification that was a NOOP. DAG size: 212 [2020-10-23 20:20:08,586 WARN L193 SmtUtils]: Spent 333.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2020-10-23 20:20:08,988 WARN L193 SmtUtils]: Spent 365.00 ms on a formula simplification that was a NOOP. DAG size: 210 [2020-10-23 20:20:09,363 WARN L193 SmtUtils]: Spent 345.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2020-10-23 20:20:10,780 WARN L193 SmtUtils]: Spent 358.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2020-10-23 20:20:11,187 WARN L193 SmtUtils]: Spent 349.00 ms on a formula simplification that was a NOOP. DAG size: 210 [2020-10-23 20:20:11,630 WARN L193 SmtUtils]: Spent 360.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2020-10-23 20:20:12,070 WARN L193 SmtUtils]: Spent 347.00 ms on a formula simplification that was a NOOP. DAG size: 210 [2020-10-23 20:20:12,454 WARN L193 SmtUtils]: Spent 339.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2020-10-23 20:20:14,066 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-23 20:20:14,066 INFO L93 Difference]: Finished difference Result 1272 states and 1543 transitions. [2020-10-23 20:20:14,067 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2020-10-23 20:20:14,067 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 213 [2020-10-23 20:20:14,067 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-23 20:20:14,073 INFO L225 Difference]: With dead ends: 1272 [2020-10-23 20:20:14,073 INFO L226 Difference]: Without dead ends: 803 [2020-10-23 20:20:14,076 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 62 GetRequests, 36 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 20:20:14,078 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 803 states. [2020-10-23 20:20:14,340 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 803 to 604. [2020-10-23 20:20:14,340 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 604 states. [2020-10-23 20:20:14,344 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 604 states to 604 states and 674 transitions. [2020-10-23 20:20:14,344 INFO L78 Accepts]: Start accepts. Automaton has 604 states and 674 transitions. Word has length 213 [2020-10-23 20:20:14,345 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-23 20:20:14,345 INFO L481 AbstractCegarLoop]: Abstraction has 604 states and 674 transitions. [2020-10-23 20:20:14,345 INFO L482 AbstractCegarLoop]: Interpolant automaton has 14 states. [2020-10-23 20:20:14,345 INFO L276 IsEmpty]: Start isEmpty. Operand 604 states and 674 transitions. [2020-10-23 20:20:14,349 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 214 [2020-10-23 20:20:14,349 INFO L414 BasicCegarLoop]: Found error trace [2020-10-23 20:20:14,350 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] [2020-10-23 20:20:14,350 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-23 20:20:14,350 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 20:20:14,351 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-23 20:20:14,351 INFO L82 PathProgramCache]: Analyzing trace with hash 1901431143, now seen corresponding path program 1 times [2020-10-23 20:20:14,351 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-23 20:20:14,351 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2136774063] [2020-10-23 20:20:14,351 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-23 20:20:14,355 INFO L321 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-10-23 20:20:14,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:20:14,737 WARN L193 SmtUtils]: Spent 302.00 ms on a formula simplification that was a NOOP. DAG size: 205 [2020-10-23 20:20:14,739 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-23 20:20:14,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:20:14,769 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-10-23 20:20:14,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:20:14,770 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2020-10-23 20:20:14,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:20:14,772 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2020-10-23 20:20:14,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:20:14,773 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2020-10-23 20:20:14,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:20:14,790 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2020-10-23 20:20:14,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:20:14,799 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2020-10-23 20:20:14,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:20:14,801 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2020-10-23 20:20:14,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:20:14,803 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-23 20:20:14,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:20:14,822 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 153 [2020-10-23 20:20:14,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:20:14,847 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-23 20:20:14,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:20:14,916 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-23 20:20:14,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:20:14,919 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-10-23 20:20:14,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:20:14,922 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 189 [2020-10-23 20:20:14,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:20:14,923 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 199 [2020-10-23 20:20:14,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:20:14,979 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 20:20:14,980 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2136774063] [2020-10-23 20:20:14,980 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-23 20:20:14,980 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2020-10-23 20:20:14,980 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1509316509] [2020-10-23 20:20:14,981 INFO L461 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-10-23 20:20:14,981 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-23 20:20:14,982 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-10-23 20:20:14,982 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2020-10-23 20:20:14,982 INFO L87 Difference]: Start difference. First operand 604 states and 674 transitions. Second operand 11 states. [2020-10-23 20:20:16,828 WARN L193 SmtUtils]: Spent 341.00 ms on a formula simplification that was a NOOP. DAG size: 209 [2020-10-23 20:20:17,235 WARN L193 SmtUtils]: Spent 366.00 ms on a formula simplification that was a NOOP. DAG size: 212 [2020-10-23 20:20:17,659 WARN L193 SmtUtils]: Spent 376.00 ms on a formula simplification that was a NOOP. DAG size: 215 [2020-10-23 20:20:18,072 WARN L193 SmtUtils]: Spent 337.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2020-10-23 20:20:18,481 WARN L193 SmtUtils]: Spent 353.00 ms on a formula simplification that was a NOOP. DAG size: 210 [2020-10-23 20:20:18,847 WARN L193 SmtUtils]: Spent 326.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2020-10-23 20:20:20,151 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-23 20:20:20,151 INFO L93 Difference]: Finished difference Result 1293 states and 1543 transitions. [2020-10-23 20:20:20,152 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2020-10-23 20:20:20,152 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 213 [2020-10-23 20:20:20,152 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-23 20:20:20,158 INFO L225 Difference]: With dead ends: 1293 [2020-10-23 20:20:20,158 INFO L226 Difference]: Without dead ends: 809 [2020-10-23 20:20:20,160 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 52 GetRequests, 33 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 32 ImplicationChecksByTransitivity, 2.6s TimeCoverageRelationStatistics Valid=121, Invalid=299, Unknown=0, NotChecked=0, Total=420 [2020-10-23 20:20:20,162 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 809 states. [2020-10-23 20:20:20,509 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 809 to 620. [2020-10-23 20:20:20,510 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 620 states. [2020-10-23 20:20:20,513 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 620 states to 620 states and 690 transitions. [2020-10-23 20:20:20,514 INFO L78 Accepts]: Start accepts. Automaton has 620 states and 690 transitions. Word has length 213 [2020-10-23 20:20:20,514 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-23 20:20:20,515 INFO L481 AbstractCegarLoop]: Abstraction has 620 states and 690 transitions. [2020-10-23 20:20:20,515 INFO L482 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-10-23 20:20:20,515 INFO L276 IsEmpty]: Start isEmpty. Operand 620 states and 690 transitions. [2020-10-23 20:20:20,519 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 214 [2020-10-23 20:20:20,519 INFO L414 BasicCegarLoop]: Found error trace [2020-10-23 20:20:20,520 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] [2020-10-23 20:20:20,520 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-23 20:20:20,520 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 20:20:20,521 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-23 20:20:20,521 INFO L82 PathProgramCache]: Analyzing trace with hash -712733014, now seen corresponding path program 1 times [2020-10-23 20:20:20,521 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-23 20:20:20,521 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1176170927] [2020-10-23 20:20:20,522 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-23 20:20:20,525 INFO L321 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-10-23 20:20:20,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:20:20,956 WARN L193 SmtUtils]: Spent 332.00 ms on a formula simplification that was a NOOP. DAG size: 205 [2020-10-23 20:20:20,958 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-23 20:20:20,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:20:21,004 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-10-23 20:20:21,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:20:21,007 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2020-10-23 20:20:21,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:20:21,008 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2020-10-23 20:20:21,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:20:21,010 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2020-10-23 20:20:21,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:20:21,031 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2020-10-23 20:20:21,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:20:21,042 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2020-10-23 20:20:21,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:20:21,045 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2020-10-23 20:20:21,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:20:21,047 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-23 20:20:21,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:20:21,059 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 153 [2020-10-23 20:20:21,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:20:21,075 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-23 20:20:21,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:20:21,090 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-23 20:20:21,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:20:21,104 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-10-23 20:20:21,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:20:21,107 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 189 [2020-10-23 20:20:21,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:20:21,109 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 199 [2020-10-23 20:20:21,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:20:21,168 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 20:20:21,169 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1176170927] [2020-10-23 20:20:21,169 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-23 20:20:21,169 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-10-23 20:20:21,169 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1837001017] [2020-10-23 20:20:21,170 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-23 20:20:21,170 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-23 20:20:21,170 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-23 20:20:21,171 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2020-10-23 20:20:21,171 INFO L87 Difference]: Start difference. First operand 620 states and 690 transitions. Second operand 8 states. [2020-10-23 20:20:21,866 WARN L193 SmtUtils]: Spent 354.00 ms on a formula simplification that was a NOOP. DAG size: 207 [2020-10-23 20:20:22,752 WARN L193 SmtUtils]: Spent 351.00 ms on a formula simplification that was a NOOP. DAG size: 207 [2020-10-23 20:20:26,724 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-23 20:20:26,725 INFO L93 Difference]: Finished difference Result 2051 states and 2500 transitions. [2020-10-23 20:20:26,725 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2020-10-23 20:20:26,725 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 213 [2020-10-23 20:20:26,726 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-23 20:20:26,736 INFO L225 Difference]: With dead ends: 2051 [2020-10-23 20:20:26,736 INFO L226 Difference]: Without dead ends: 1551 [2020-10-23 20:20:26,739 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 68 GetRequests, 43 SyntacticMatches, 2 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 151 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=156, Invalid=444, Unknown=0, NotChecked=0, Total=600 [2020-10-23 20:20:26,742 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1551 states. [2020-10-23 20:20:27,268 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1551 to 1288. [2020-10-23 20:20:27,268 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1288 states. [2020-10-23 20:20:27,276 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1288 states to 1288 states and 1459 transitions. [2020-10-23 20:20:27,277 INFO L78 Accepts]: Start accepts. Automaton has 1288 states and 1459 transitions. Word has length 213 [2020-10-23 20:20:27,277 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-23 20:20:27,277 INFO L481 AbstractCegarLoop]: Abstraction has 1288 states and 1459 transitions. [2020-10-23 20:20:27,278 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-23 20:20:27,278 INFO L276 IsEmpty]: Start isEmpty. Operand 1288 states and 1459 transitions. [2020-10-23 20:20:27,282 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 219 [2020-10-23 20:20:27,282 INFO L414 BasicCegarLoop]: Found error trace [2020-10-23 20:20:27,282 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 20:20:27,283 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-10-23 20:20:27,283 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 20:20:27,283 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-23 20:20:27,284 INFO L82 PathProgramCache]: Analyzing trace with hash -2106283039, now seen corresponding path program 1 times [2020-10-23 20:20:27,284 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-23 20:20:27,284 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1821325803] [2020-10-23 20:20:27,284 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-23 20:20:27,287 INFO L321 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-10-23 20:20:27,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:20:27,806 WARN L193 SmtUtils]: Spent 327.00 ms on a formula simplification that was a NOOP. DAG size: 205 [2020-10-23 20:20:27,807 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-23 20:20:27,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:20:27,853 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-10-23 20:20:27,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:20:27,855 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2020-10-23 20:20:27,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:20:27,857 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2020-10-23 20:20:27,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:20:27,859 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2020-10-23 20:20:27,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:20:27,878 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2020-10-23 20:20:27,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:20:27,894 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2020-10-23 20:20:27,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:20:27,979 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2020-10-23 20:20:27,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:20:27,982 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 144 [2020-10-23 20:20:27,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:20:27,991 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-23 20:20:27,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:20:28,014 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 158 [2020-10-23 20:20:28,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:20:28,020 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-23 20:20:28,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:20:28,026 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-23 20:20:28,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:20:28,028 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-10-23 20:20:28,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:20:28,030 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 194 [2020-10-23 20:20:28,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:20:28,065 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 204 [2020-10-23 20:20:28,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:20:28,125 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 20:20:28,126 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1821325803] [2020-10-23 20:20:28,126 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-23 20:20:28,126 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2020-10-23 20:20:28,126 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [10535689] [2020-10-23 20:20:28,127 INFO L461 AbstractCegarLoop]: Interpolant automaton has 15 states [2020-10-23 20:20:28,127 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-23 20:20:28,128 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2020-10-23 20:20:28,128 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=177, Unknown=0, NotChecked=0, Total=210 [2020-10-23 20:20:28,128 INFO L87 Difference]: Start difference. First operand 1288 states and 1459 transitions. Second operand 15 states. [2020-10-23 20:20:29,295 WARN L193 SmtUtils]: Spent 734.00 ms on a formula simplification. DAG size of input: 209 DAG size of output: 207 [2020-10-23 20:20:30,474 WARN L193 SmtUtils]: Spent 357.00 ms on a formula simplification that was a NOOP. DAG size: 207 [2020-10-23 20:20:32,110 WARN L193 SmtUtils]: Spent 702.00 ms on a formula simplification. DAG size of input: 211 DAG size of output: 209 [2020-10-23 20:20:32,869 WARN L193 SmtUtils]: Spent 709.00 ms on a formula simplification. DAG size of input: 213 DAG size of output: 211 [2020-10-23 20:20:33,417 WARN L193 SmtUtils]: Spent 349.00 ms on a formula simplification that was a NOOP. DAG size: 209 [2020-10-23 20:20:33,846 WARN L193 SmtUtils]: Spent 379.00 ms on a formula simplification that was a NOOP. DAG size: 211 [2020-10-23 20:20:34,622 WARN L193 SmtUtils]: Spent 734.00 ms on a formula simplification. DAG size of input: 212 DAG size of output: 210 [2020-10-23 20:20:35,091 WARN L193 SmtUtils]: Spent 366.00 ms on a formula simplification that was a NOOP. DAG size: 209 [2020-10-23 20:20:35,549 WARN L193 SmtUtils]: Spent 360.00 ms on a formula simplification that was a NOOP. DAG size: 211 [2020-10-23 20:20:36,012 WARN L193 SmtUtils]: Spent 368.00 ms on a formula simplification that was a NOOP. DAG size: 209 [2020-10-23 20:20:40,012 WARN L193 SmtUtils]: Spent 670.00 ms on a formula simplification. DAG size of input: 208 DAG size of output: 207 [2020-10-23 20:20:40,465 WARN L193 SmtUtils]: Spent 356.00 ms on a formula simplification that was a NOOP. DAG size: 207 [2020-10-23 20:20:40,838 WARN L193 SmtUtils]: Spent 341.00 ms on a formula simplification that was a NOOP. DAG size: 209 [2020-10-23 20:20:41,267 WARN L193 SmtUtils]: Spent 332.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2020-10-23 20:20:43,097 WARN L193 SmtUtils]: Spent 673.00 ms on a formula simplification. DAG size of input: 210 DAG size of output: 209 [2020-10-23 20:20:43,827 WARN L193 SmtUtils]: Spent 697.00 ms on a formula simplification. DAG size of input: 212 DAG size of output: 211 [2020-10-23 20:20:44,614 WARN L193 SmtUtils]: Spent 707.00 ms on a formula simplification. DAG size of input: 211 DAG size of output: 210 [2020-10-23 20:20:45,309 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-23 20:20:45,310 INFO L93 Difference]: Finished difference Result 3876 states and 4727 transitions. [2020-10-23 20:20:45,315 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 54 states. [2020-10-23 20:20:45,316 INFO L78 Accepts]: Start accepts. Automaton has 15 states. Word has length 218 [2020-10-23 20:20:45,316 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-23 20:20:45,334 INFO L225 Difference]: With dead ends: 3876 [2020-10-23 20:20:45,334 INFO L226 Difference]: Without dead ends: 2979 [2020-10-23 20:20:45,340 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 105 GetRequests, 45 SyntacticMatches, 0 SemanticMatches, 60 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1147 ImplicationChecksByTransitivity, 10.4s TimeCoverageRelationStatistics Valid=778, Invalid=3004, Unknown=0, NotChecked=0, Total=3782 [2020-10-23 20:20:45,344 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2979 states. [2020-10-23 20:20:46,419 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2979 to 2291. [2020-10-23 20:20:46,419 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2291 states. [2020-10-23 20:20:46,429 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2291 states to 2291 states and 2587 transitions. [2020-10-23 20:20:46,430 INFO L78 Accepts]: Start accepts. Automaton has 2291 states and 2587 transitions. Word has length 218 [2020-10-23 20:20:46,431 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-23 20:20:46,431 INFO L481 AbstractCegarLoop]: Abstraction has 2291 states and 2587 transitions. [2020-10-23 20:20:46,431 INFO L482 AbstractCegarLoop]: Interpolant automaton has 15 states. [2020-10-23 20:20:46,431 INFO L276 IsEmpty]: Start isEmpty. Operand 2291 states and 2587 transitions. [2020-10-23 20:20:46,438 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 282 [2020-10-23 20:20:46,438 INFO L414 BasicCegarLoop]: Found error trace [2020-10-23 20:20:46,439 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 20:20:46,439 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-10-23 20:20:46,439 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 20:20:46,440 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-23 20:20:46,440 INFO L82 PathProgramCache]: Analyzing trace with hash 367035707, now seen corresponding path program 1 times [2020-10-23 20:20:46,440 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-23 20:20:46,440 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2042976009] [2020-10-23 20:20:46,440 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-23 20:20:46,725 WARN L193 SmtUtils]: Spent 258.00 ms on a formula simplification. DAG size of input: 93 DAG size of output: 68 [2020-10-23 20:20:47,135 WARN L193 SmtUtils]: Spent 272.00 ms on a formula simplification. DAG size of input: 93 DAG size of output: 71 [2020-10-23 20:20:47,479 WARN L193 SmtUtils]: Spent 240.00 ms on a formula simplification. DAG size of input: 93 DAG size of output: 68 [2020-10-23 20:20:47,855 WARN L193 SmtUtils]: Spent 295.00 ms on a formula simplification. DAG size of input: 97 DAG size of output: 74 [2020-10-23 20:20:48,292 WARN L193 SmtUtils]: Spent 324.00 ms on a formula simplification. DAG size of input: 97 DAG size of output: 76 [2020-10-23 20:20:48,397 WARN L193 SmtUtils]: Spent 101.00 ms on a formula simplification that was a NOOP. DAG size: 68 [2020-10-23 20:20:48,706 WARN L193 SmtUtils]: Spent 303.00 ms on a formula simplification. DAG size of input: 97 DAG size of output: 76 [2020-10-23 20:20:49,105 WARN L193 SmtUtils]: Spent 282.00 ms on a formula simplification. DAG size of input: 98 DAG size of output: 77 [2020-10-23 20:20:49,523 WARN L193 SmtUtils]: Spent 308.00 ms on a formula simplification. DAG size of input: 93 DAG size of output: 71 [2020-10-23 20:20:49,883 WARN L193 SmtUtils]: Spent 263.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 67 [2020-10-23 20:20:50,238 WARN L193 SmtUtils]: Spent 270.00 ms on a formula simplification. DAG size of input: 93 DAG size of output: 68 [2020-10-23 20:20:50,593 WARN L193 SmtUtils]: Spent 268.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 67 [2020-10-23 20:20:51,005 WARN L193 SmtUtils]: Spent 321.00 ms on a formula simplification. DAG size of input: 98 DAG size of output: 77 [2020-10-23 20:20:51,116 WARN L193 SmtUtils]: Spent 101.00 ms on a formula simplification that was a NOOP. DAG size: 69 [2020-10-23 20:20:51,413 WARN L193 SmtUtils]: Spent 291.00 ms on a formula simplification. DAG size of input: 93 DAG size of output: 71 [2020-10-23 20:20:51,813 WARN L193 SmtUtils]: Spent 297.00 ms on a formula simplification. DAG size of input: 98 DAG size of output: 75 [2020-10-23 20:20:52,828 WARN L193 SmtUtils]: Spent 684.00 ms on a formula simplification. DAG size of input: 212 DAG size of output: 211 [2020-10-23 20:20:53,705 WARN L193 SmtUtils]: Spent 679.00 ms on a formula simplification. DAG size of input: 212 DAG size of output: 211 [2020-10-23 20:20:53,713 INFO L309 leratedInterpolation]: Starting analysis with loop acceleration approximation UNDERAPPROXIMATION [2020-10-23 20:20:54,521 WARN L193 SmtUtils]: Spent 690.00 ms on a formula simplification. DAG size of input: 215 DAG size of output: 213 [2020-10-23 20:20:55,372 WARN L193 SmtUtils]: Spent 722.00 ms on a formula simplification. DAG size of input: 215 DAG size of output: 213 [2020-10-23 20:20:55,386 INFO L309 leratedInterpolation]: Starting analysis with loop acceleration approximation UNDERAPPROXIMATION [2020-10-23 20:20:56,194 WARN L193 SmtUtils]: Spent 694.00 ms on a formula simplification. DAG size of input: 213 DAG size of output: 212 [2020-10-23 20:20:57,015 WARN L193 SmtUtils]: Spent 656.00 ms on a formula simplification. DAG size of input: 213 DAG size of output: 212 [2020-10-23 20:20:57,026 INFO L309 leratedInterpolation]: Starting analysis with loop acceleration approximation UNDERAPPROXIMATION [2020-10-23 20:20:57,564 WARN L193 SmtUtils]: Spent 506.00 ms on a formula simplification. DAG size of input: 167 DAG size of output: 161 [2020-10-23 20:20:58,125 WARN L193 SmtUtils]: Spent 528.00 ms on a formula simplification. DAG size of input: 167 DAG size of output: 162 [2020-10-23 20:20:58,673 WARN L193 SmtUtils]: Spent 523.00 ms on a formula simplification. DAG size of input: 167 DAG size of output: 161 [2020-10-23 20:20:59,219 WARN L193 SmtUtils]: Spent 527.00 ms on a formula simplification. DAG size of input: 167 DAG size of output: 162 [2020-10-23 20:20:59,223 INFO L309 leratedInterpolation]: Starting analysis with loop acceleration approximation UNDERAPPROXIMATION [2020-10-23 20:20:59,774 WARN L193 SmtUtils]: Spent 531.00 ms on a formula simplification. DAG size of input: 167 DAG size of output: 159 [2020-10-23 20:21:00,312 WARN L193 SmtUtils]: Spent 519.00 ms on a formula simplification. DAG size of input: 167 DAG size of output: 159 [2020-10-23 20:21:00,842 WARN L193 SmtUtils]: Spent 509.00 ms on a formula simplification. DAG size of input: 167 DAG size of output: 160 [2020-10-23 20:21:01,381 WARN L193 SmtUtils]: Spent 521.00 ms on a formula simplification. DAG size of input: 167 DAG size of output: 160 [2020-10-23 20:21:01,384 INFO L309 leratedInterpolation]: Starting analysis with loop acceleration approximation UNDERAPPROXIMATION [2020-10-23 20:21:01,948 WARN L193 SmtUtils]: Spent 545.00 ms on a formula simplification. DAG size of input: 167 DAG size of output: 159 [2020-10-23 20:21:02,501 WARN L193 SmtUtils]: Spent 531.00 ms on a formula simplification. DAG size of input: 167 DAG size of output: 160 [2020-10-23 20:21:03,068 WARN L193 SmtUtils]: Spent 546.00 ms on a formula simplification. DAG size of input: 167 DAG size of output: 160 [2020-10-23 20:21:03,607 WARN L193 SmtUtils]: Spent 508.00 ms on a formula simplification. DAG size of input: 167 DAG size of output: 159 [2020-10-23 20:21:03,610 INFO L309 leratedInterpolation]: Starting analysis with loop acceleration approximation UNDERAPPROXIMATION [2020-10-23 20:21:04,180 WARN L193 SmtUtils]: Spent 555.00 ms on a formula simplification. DAG size of input: 167 DAG size of output: 162 [2020-10-23 20:21:04,724 WARN L193 SmtUtils]: Spent 525.00 ms on a formula simplification. DAG size of input: 167 DAG size of output: 162 [2020-10-23 20:21:05,275 WARN L193 SmtUtils]: Spent 527.00 ms on a formula simplification. DAG size of input: 167 DAG size of output: 162 [2020-10-23 20:21:05,817 WARN L193 SmtUtils]: Spent 524.00 ms on a formula simplification. DAG size of input: 167 DAG size of output: 162 [2020-10-23 20:21:05,820 INFO L309 leratedInterpolation]: Starting analysis with loop acceleration approximation UNDERAPPROXIMATION [2020-10-23 20:21:06,620 WARN L193 SmtUtils]: Spent 698.00 ms on a formula simplification. DAG size of input: 211 DAG size of output: 209 [2020-10-23 20:21:07,393 WARN L193 SmtUtils]: Spent 660.00 ms on a formula simplification. DAG size of input: 211 DAG size of output: 209 [2020-10-23 20:21:07,401 INFO L309 leratedInterpolation]: Starting analysis with loop acceleration approximation UNDERAPPROXIMATION [2020-10-23 20:21:08,132 WARN L193 SmtUtils]: Spent 637.00 ms on a formula simplification. DAG size of input: 208 DAG size of output: 205 [2020-10-23 20:21:08,869 WARN L193 SmtUtils]: Spent 643.00 ms on a formula simplification. DAG size of input: 208 DAG size of output: 205 [2020-10-23 20:21:08,876 INFO L309 leratedInterpolation]: Starting analysis with loop acceleration approximation UNDERAPPROXIMATION [2020-10-23 20:21:09,657 WARN L193 SmtUtils]: Spent 696.00 ms on a formula simplification. DAG size of input: 208 DAG size of output: 207 [2020-10-23 20:21:10,383 WARN L193 SmtUtils]: Spent 637.00 ms on a formula simplification. DAG size of input: 208 DAG size of output: 207 [2020-10-23 20:21:10,389 INFO L309 leratedInterpolation]: Starting analysis with loop acceleration approximation UNDERAPPROXIMATION [2020-10-23 20:21:11,104 WARN L193 SmtUtils]: Spent 642.00 ms on a formula simplification. DAG size of input: 207 DAG size of output: 204 [2020-10-23 20:21:11,851 WARN L193 SmtUtils]: Spent 651.00 ms on a formula simplification. DAG size of input: 207 DAG size of output: 204 [2020-10-23 20:21:11,857 INFO L309 leratedInterpolation]: Starting analysis with loop acceleration approximation UNDERAPPROXIMATION [2020-10-23 20:21:12,426 WARN L193 SmtUtils]: Spent 553.00 ms on a formula simplification. DAG size of input: 168 DAG size of output: 163 [2020-10-23 20:21:13,017 WARN L193 SmtUtils]: Spent 574.00 ms on a formula simplification. DAG size of input: 168 DAG size of output: 163 [2020-10-23 20:21:13,567 WARN L193 SmtUtils]: Spent 531.00 ms on a formula simplification. DAG size of input: 168 DAG size of output: 163 [2020-10-23 20:21:14,144 WARN L193 SmtUtils]: Spent 559.00 ms on a formula simplification. DAG size of input: 168 DAG size of output: 163 [2020-10-23 20:21:14,148 INFO L309 leratedInterpolation]: Starting analysis with loop acceleration approximation UNDERAPPROXIMATION [2020-10-23 20:21:14,933 WARN L193 SmtUtils]: Spent 687.00 ms on a formula simplification. DAG size of input: 214 DAG size of output: 212 [2020-10-23 20:21:15,703 WARN L193 SmtUtils]: Spent 693.00 ms on a formula simplification. DAG size of input: 214 DAG size of output: 212 [2020-10-23 20:21:15,714 INFO L309 leratedInterpolation]: Starting analysis with loop acceleration approximation UNDERAPPROXIMATION [2020-10-23 20:21:16,289 WARN L193 SmtUtils]: Spent 557.00 ms on a formula simplification. DAG size of input: 168 DAG size of output: 165 [2020-10-23 20:21:16,850 WARN L193 SmtUtils]: Spent 544.00 ms on a formula simplification. DAG size of input: 168 DAG size of output: 165 [2020-10-23 20:21:17,422 WARN L193 SmtUtils]: Spent 554.00 ms on a formula simplification. DAG size of input: 168 DAG size of output: 165 [2020-10-23 20:21:18,011 WARN L193 SmtUtils]: Spent 569.00 ms on a formula simplification. DAG size of input: 168 DAG size of output: 165 [2020-10-23 20:21:18,014 INFO L309 leratedInterpolation]: Starting analysis with loop acceleration approximation UNDERAPPROXIMATION [2020-10-23 20:21:18,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-23 20:21:18,152 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-23 20:21:18,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-23 20:21:18,275 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-23 20:21:18,505 INFO L173 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2020-10-23 20:21:18,505 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-10-23 20:21:18,509 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-10-23 20:21:18,562 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 23.10 08:21:18 BoogieIcfgContainer [2020-10-23 20:21:18,562 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-23 20:21:18,565 INFO L168 Benchmark]: Toolchain (without parser) took 97624.41 ms. Allocated memory was 151.0 MB in the beginning and 952.1 MB in the end (delta: 801.1 MB). Free memory was 126.9 MB in the beginning and 491.0 MB in the end (delta: -364.1 MB). Peak memory consumption was 437.8 MB. Max. memory is 8.0 GB. [2020-10-23 20:21:18,572 INFO L168 Benchmark]: CDTParser took 0.21 ms. Allocated memory is still 151.0 MB. Free memory is still 125.5 MB. There was no memory consumed. Max. memory is 8.0 GB. [2020-10-23 20:21:18,576 INFO L168 Benchmark]: CACSL2BoogieTranslator took 708.95 ms. Allocated memory is still 151.0 MB. Free memory was 126.2 MB in the beginning and 104.5 MB in the end (delta: 21.7 MB). Peak memory consumption was 22.0 MB. Max. memory is 8.0 GB. [2020-10-23 20:21:18,577 INFO L168 Benchmark]: Boogie Preprocessor took 134.69 ms. Allocated memory is still 151.0 MB. Free memory was 104.5 MB in the beginning and 100.6 MB in the end (delta: 3.9 MB). Peak memory consumption was 4.2 MB. Max. memory is 8.0 GB. [2020-10-23 20:21:18,577 INFO L168 Benchmark]: RCFGBuilder took 1784.96 ms. Allocated memory is still 151.0 MB. Free memory was 100.5 MB in the beginning and 91.8 MB in the end (delta: 8.7 MB). Peak memory consumption was 34.3 MB. Max. memory is 8.0 GB. [2020-10-23 20:21:18,584 INFO L168 Benchmark]: TraceAbstraction took 94978.69 ms. Allocated memory was 151.0 MB in the beginning and 952.1 MB in the end (delta: 801.1 MB). Free memory was 91.3 MB in the beginning and 491.0 MB in the end (delta: -399.7 MB). Peak memory consumption was 401.4 MB. Max. memory is 8.0 GB. [2020-10-23 20:21:18,586 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.21 ms. Allocated memory is still 151.0 MB. Free memory is still 125.5 MB. There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 708.95 ms. Allocated memory is still 151.0 MB. Free memory was 126.2 MB in the beginning and 104.5 MB in the end (delta: 21.7 MB). Peak memory consumption was 22.0 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 134.69 ms. Allocated memory is still 151.0 MB. Free memory was 104.5 MB in the beginning and 100.6 MB in the end (delta: 3.9 MB). Peak memory consumption was 4.2 MB. Max. memory is 8.0 GB. * RCFGBuilder took 1784.96 ms. Allocated memory is still 151.0 MB. Free memory was 100.5 MB in the beginning and 91.8 MB in the end (delta: 8.7 MB). Peak memory consumption was 34.3 MB. Max. memory is 8.0 GB. * TraceAbstraction took 94978.69 ms. Allocated memory was 151.0 MB in the beginning and 952.1 MB in the end (delta: 801.1 MB). Free memory was 91.3 MB in the beginning and 491.0 MB in the end (delta: -399.7 MB). Peak memory consumption was 401.4 MB. Max. memory is 8.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 3]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L100] int pumpRunning = 0; [L101] int systemActive = 1; [L449] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L718] int cleanupTimeShifts = 4; [L817] int switchedOnBeforeTS ; [L866] int waterLevel = 1; [L867] int methaneLevelCritical = 0; [L793] int retValue_acc ; [L794] int tmp ; [L798] FCALL select_helpers() [L799] FCALL select_features() [L800] CALL, EXPR valid_product() [L71] int retValue_acc ; [L74] retValue_acc = 1 [L75] return (retValue_acc); [L800] RET, EXPR valid_product() [L800] tmp = valid_product() [L802] COND TRUE \read(tmp) [L804] FCALL setup() [L805] CALL runTest() [L786] CALL __utac_acc__Specification5_spec__1() [L822] switchedOnBeforeTS = 0 [L786] RET __utac_acc__Specification5_spec__1() [L787] CALL test() [L650] int splverifierCounter ; [L651] int tmp ; [L652] int tmp___0 ; [L653] int tmp___1 ; [L654] int tmp___2 ; [L657] splverifierCounter = 0 [L659] COND TRUE 1 [L661] COND TRUE splverifierCounter < 4 [L667] tmp = __VERIFIER_nondet_int() [L669] COND TRUE \read(tmp) [L671] CALL waterRise() [L884] COND TRUE waterLevel < 2 [L885] waterLevel = waterLevel + 1 [L671] RET waterRise() [L677] tmp___0 = __VERIFIER_nondet_int() [L679] COND FALSE !(\read(tmp___0)) [L687] tmp___2 = __VERIFIER_nondet_int() [L689] COND TRUE \read(tmp___2) [L691] CALL startSystem() [L275] systemActive = 1 [L691] RET startSystem() [L706] CALL timeShift() [L110] CALL __utac_acc__Specification5_spec__2() [L831] CALL, EXPR isPumpRunning() [L193] int retValue_acc ; [L196] retValue_acc = pumpRunning [L197] return (retValue_acc); [L831] RET, EXPR isPumpRunning() [L831] switchedOnBeforeTS = isPumpRunning() [L110] RET __utac_acc__Specification5_spec__2() [L112] COND FALSE !(\read(pumpRunning)) [L119] COND TRUE \read(systemActive) [L121] CALL processEnvironment() [L141] int tmp ; [L144] COND TRUE ! pumpRunning [L146] CALL, EXPR isHighWaterLevel() [L238] int retValue_acc ; [L239] int tmp ; [L240] int tmp___0 ; [L244] CALL, EXPR isHighWaterSensorDry() [L946] int retValue_acc ; [L949] COND FALSE !(waterLevel < 2) [L953] retValue_acc = 0 [L954] return (retValue_acc); [L244] RET, EXPR isHighWaterSensorDry() [L244] tmp = isHighWaterSensorDry() [L246] COND FALSE !(\read(tmp)) [L249] tmp___0 = 1 [L251] retValue_acc = tmp___0 [L252] return (retValue_acc); [L146] RET, EXPR isHighWaterLevel() [L146] tmp = isHighWaterLevel() [L148] COND TRUE \read(tmp) [L150] CALL activatePump() [L169] pumpRunning = 1 [L150] RET activatePump() [L121] RET processEnvironment() [L127] CALL __utac_acc__Specification5_spec__3() [L837] int tmp ; [L838] int tmp___0 ; [L842] CALL, EXPR getWaterLevel() [L937] int retValue_acc ; [L940] retValue_acc = waterLevel [L941] return (retValue_acc); [L842] RET, EXPR getWaterLevel() [L842] tmp = getWaterLevel() [L844] COND FALSE !(tmp != 2) [L127] RET __utac_acc__Specification5_spec__3() [L706] RET timeShift() [L659] COND TRUE 1 [L661] COND TRUE splverifierCounter < 4 [L667] tmp = __VERIFIER_nondet_int() [L669] COND FALSE !(\read(tmp)) [L677] tmp___0 = __VERIFIER_nondet_int() [L679] COND FALSE !(\read(tmp___0)) [L687] tmp___2 = __VERIFIER_nondet_int() [L689] COND TRUE \read(tmp___2) [L691] CALL startSystem() [L275] systemActive = 1 [L691] RET startSystem() [L706] CALL timeShift() [L110] CALL __utac_acc__Specification5_spec__2() [L831] CALL, EXPR isPumpRunning() [L193] int retValue_acc ; [L196] retValue_acc = pumpRunning [L197] return (retValue_acc); [L831] RET, EXPR isPumpRunning() [L831] switchedOnBeforeTS = isPumpRunning() [L110] RET __utac_acc__Specification5_spec__2() [L112] COND TRUE \read(pumpRunning) [L114] CALL lowerWaterLevel() [L872] COND TRUE waterLevel > 0 [L873] waterLevel = waterLevel - 1 [L114] RET lowerWaterLevel() [L119] COND TRUE \read(systemActive) [L121] CALL processEnvironment() [L141] int tmp ; [L144] COND FALSE !(! pumpRunning) [L159] FCALL processEnvironment__wrappee__base() [L121] RET processEnvironment() [L127] CALL __utac_acc__Specification5_spec__3() [L837] int tmp ; [L838] int tmp___0 ; [L842] CALL, EXPR getWaterLevel() [L937] int retValue_acc ; [L940] retValue_acc = waterLevel [L941] return (retValue_acc); [L842] RET, EXPR getWaterLevel() [L842] tmp = getWaterLevel() [L844] COND TRUE tmp != 2 [L846] CALL, EXPR isPumpRunning() [L193] int retValue_acc ; [L196] retValue_acc = pumpRunning [L197] return (retValue_acc); [L846] RET, EXPR isPumpRunning() [L846] tmp___0 = isPumpRunning() [L848] COND TRUE \read(tmp___0) [L849] COND TRUE ! switchedOnBeforeTS [L851] CALL __automaton_fail() [L84] CALL reach_error() [L3] __assert_fail("0", "minepump_spec5_product36.cil.c", 3, "reach_error") - StatisticsResult: Ultimate Automizer benchmark data CFG has 42 procedures, 642 locations, 5 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 94.8s, OverallIterations: 9, TraceHistogramMax: 3, AutomataDifference: 52.9s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 2109 SDtfs, 5373 SDslu, 5204 SDs, 0 SdLazy, 9768 SolverSat, 1636 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 21.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 435 GetRequests, 255 SyntacticMatches, 2 SemanticMatches, 178 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1546 ImplicationChecksByTransitivity, 27.5s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=2291occurred 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, 1630 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...