/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml -s ../../../trunk/examples/settings/automizer/acceleratedInterpolation/acceleratedInterpolationFastUPR_32.epf -i ../../../trunk/examples/svcomp/product-lines/minepump_spec4_product58.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.2.0-b8ad66e [2020-10-23 20:13:42,751 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-23 20:13:42,754 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-23 20:13:42,792 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-23 20:13:42,793 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-23 20:13:42,795 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-23 20:13:42,797 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-23 20:13:42,799 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-23 20:13:42,806 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-23 20:13:42,808 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-23 20:13:42,809 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-23 20:13:42,811 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-23 20:13:42,811 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-23 20:13:42,813 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-23 20:13:42,814 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-23 20:13:42,816 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-23 20:13:42,817 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-23 20:13:42,818 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-23 20:13:42,820 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-23 20:13:42,823 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-23 20:13:42,825 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-23 20:13:42,829 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-23 20:13:42,834 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-23 20:13:42,835 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-23 20:13:42,853 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-23 20:13:42,854 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-23 20:13:42,854 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-23 20:13:42,858 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-23 20:13:42,861 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-23 20:13:42,862 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-23 20:13:42,863 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-23 20:13:42,866 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-23 20:13:42,867 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-23 20:13:42,869 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-23 20:13:42,871 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-23 20:13:42,871 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-23 20:13:42,872 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-23 20:13:42,873 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-23 20:13:42,873 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-23 20:13:42,874 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-23 20:13:42,876 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-23 20:13:42,877 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 20:13:42,903 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-23 20:13:42,903 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-23 20:13:42,908 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-23 20:13:42,908 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-23 20:13:42,908 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-23 20:13:42,909 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-23 20:13:42,909 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-23 20:13:42,909 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-23 20:13:42,909 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-23 20:13:42,910 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-23 20:13:42,911 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-23 20:13:42,911 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-23 20:13:42,912 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-23 20:13:42,912 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-23 20:13:42,912 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-23 20:13:42,912 INFO L138 SettingsManager]: * Size of a code block=SingleStatement [2020-10-23 20:13:42,913 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-23 20:13:42,913 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-23 20:13:42,913 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-23 20:13:42,913 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-23 20:13:42,914 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=AcceleratedInterpolation [2020-10-23 20:13:42,914 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-23 20:13:42,914 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2020-10-23 20:13:43,353 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-23 20:13:43,389 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-23 20:13:43,393 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-23 20:13:43,394 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-23 20:13:43,397 INFO L275 PluginConnector]: CDTParser initialized [2020-10-23 20:13:43,399 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec4_product58.cil.c [2020-10-23 20:13:43,504 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/707a94c22/5391d9169c684f95a16c11bc5d370cf7/FLAG9f3f962a5 [2020-10-23 20:13:44,333 INFO L306 CDTParser]: Found 1 translation units. [2020-10-23 20:13:44,333 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/minepump_spec4_product58.cil.c [2020-10-23 20:13:44,348 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/707a94c22/5391d9169c684f95a16c11bc5d370cf7/FLAG9f3f962a5 [2020-10-23 20:13:44,595 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/707a94c22/5391d9169c684f95a16c11bc5d370cf7 [2020-10-23 20:13:44,604 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-23 20:13:44,611 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-23 20:13:44,613 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-23 20:13:44,613 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-23 20:13:44,617 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-23 20:13:44,618 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.10 08:13:44" (1/1) ... [2020-10-23 20:13:44,621 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@228a6f06 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 08:13:44, skipping insertion in model container [2020-10-23 20:13:44,622 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.10 08:13:44" (1/1) ... [2020-10-23 20:13:44,630 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-23 20:13:44,673 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-23 20:13:45,024 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-23 20:13:45,036 INFO L203 MainTranslator]: Completed pre-run [2020-10-23 20:13:45,197 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-23 20:13:45,248 INFO L208 MainTranslator]: Completed translation [2020-10-23 20:13:45,248 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 08:13:45 WrapperNode [2020-10-23 20:13:45,248 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-23 20:13:45,249 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-23 20:13:45,250 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-23 20:13:45,250 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-23 20:13:45,263 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 08:13:45" (1/1) ... [2020-10-23 20:13:45,263 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 08:13:45" (1/1) ... [2020-10-23 20:13:45,293 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 08:13:45" (1/1) ... [2020-10-23 20:13:45,294 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 08:13:45" (1/1) ... [2020-10-23 20:13:45,355 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 08:13:45" (1/1) ... [2020-10-23 20:13:45,377 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 08:13:45" (1/1) ... [2020-10-23 20:13:45,407 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 08:13:45" (1/1) ... [2020-10-23 20:13:45,422 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-23 20:13:45,423 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-23 20:13:45,423 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-23 20:13:45,425 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-23 20:13:45,426 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 08:13:45" (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 20:13:45,514 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-23 20:13:45,515 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-23 20:13:45,516 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2020-10-23 20:13:45,516 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2020-10-23 20:13:45,516 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2020-10-23 20:13:45,516 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2020-10-23 20:13:45,516 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2020-10-23 20:13:45,516 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2020-10-23 20:13:45,516 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2020-10-23 20:13:45,517 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2020-10-23 20:13:45,517 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification4_spec__1 [2020-10-23 20:13:45,517 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2020-10-23 20:13:45,518 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2020-10-23 20:13:45,518 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2020-10-23 20:13:45,518 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2020-10-23 20:13:45,518 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2020-10-23 20:13:45,518 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2020-10-23 20:13:45,519 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2020-10-23 20:13:45,519 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterSensorDry [2020-10-23 20:13:45,519 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterSensorDry [2020-10-23 20:13:45,520 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2020-10-23 20:13:45,520 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2020-10-23 20:13:45,521 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2020-10-23 20:13:45,521 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2020-10-23 20:13:45,522 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-23 20:13:45,522 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2020-10-23 20:13:45,522 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2020-10-23 20:13:45,522 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2020-10-23 20:13:45,522 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2020-10-23 20:13:45,522 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2020-10-23 20:13:45,522 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2020-10-23 20:13:45,523 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__highWaterSensor [2020-10-23 20:13:45,523 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2020-10-23 20:13:45,523 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump__wrappee__lowWaterSensor [2020-10-23 20:13:45,523 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2020-10-23 20:13:45,523 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2020-10-23 20:13:45,524 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2020-10-23 20:13:45,524 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2020-10-23 20:13:45,524 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2020-10-23 20:13:45,524 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterLevel [2020-10-23 20:13:45,524 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterLevel [2020-10-23 20:13:45,524 INFO L138 BoogieDeclarations]: Found implementation of procedure startSystem [2020-10-23 20:13:45,524 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2020-10-23 20:13:45,525 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-10-23 20:13:45,525 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-10-23 20:13:45,525 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2020-10-23 20:13:45,525 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-23 20:13:45,525 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-10-23 20:13:45,525 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2020-10-23 20:13:45,525 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-10-23 20:13:45,525 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-10-23 20:13:45,526 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2020-10-23 20:13:45,526 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-10-23 20:13:45,526 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-10-23 20:13:45,526 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-23 20:13:45,526 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-10-23 20:13:45,526 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2020-10-23 20:13:45,526 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-23 20:13:45,526 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2020-10-23 20:13:45,527 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2020-10-23 20:13:45,527 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-10-23 20:13:45,527 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2020-10-23 20:13:45,527 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2020-10-23 20:13:45,527 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2020-10-23 20:13:45,527 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2020-10-23 20:13:45,527 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2020-10-23 20:13:45,528 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2020-10-23 20:13:45,528 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification4_spec__1 [2020-10-23 20:13:45,528 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2020-10-23 20:13:45,528 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2020-10-23 20:13:45,528 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2020-10-23 20:13:45,528 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2020-10-23 20:13:45,528 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2020-10-23 20:13:45,529 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterSensorDry [2020-10-23 20:13:45,529 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterSensorDry [2020-10-23 20:13:45,529 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2020-10-23 20:13:45,530 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2020-10-23 20:13:45,530 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2020-10-23 20:13:45,530 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2020-10-23 20:13:45,530 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2020-10-23 20:13:45,531 INFO L130 BoogieDeclarations]: Found specification of procedure test [2020-10-23 20:13:45,531 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2020-10-23 20:13:45,531 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2020-10-23 20:13:45,531 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2020-10-23 20:13:45,531 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2020-10-23 20:13:45,531 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-23 20:13:45,532 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2020-10-23 20:13:45,533 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2020-10-23 20:13:45,533 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2020-10-23 20:13:45,533 INFO L130 BoogieDeclarations]: Found specification of procedure startSystem [2020-10-23 20:13:45,533 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2020-10-23 20:13:45,534 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2020-10-23 20:13:45,534 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterLevel [2020-10-23 20:13:45,534 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__highWaterSensor [2020-10-23 20:13:45,535 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterLevel [2020-10-23 20:13:45,535 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump__wrappee__lowWaterSensor [2020-10-23 20:13:45,535 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2020-10-23 20:13:45,535 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-23 20:13:45,536 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-23 20:13:45,536 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-23 20:13:47,051 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-23 20:13:47,051 INFO L298 CfgBuilder]: Removed 5 assume(true) statements. [2020-10-23 20:13:47,056 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.10 08:13:47 BoogieIcfgContainer [2020-10-23 20:13:47,057 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-23 20:13:47,060 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-23 20:13:47,061 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-23 20:13:47,065 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-23 20:13:47,065 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.10 08:13:44" (1/3) ... [2020-10-23 20:13:47,066 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@267e3a49 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.10 08:13:47, skipping insertion in model container [2020-10-23 20:13:47,066 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 08:13:45" (2/3) ... [2020-10-23 20:13:47,067 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@267e3a49 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.10 08:13:47, skipping insertion in model container [2020-10-23 20:13:47,067 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.10 08:13:47" (3/3) ... [2020-10-23 20:13:47,069 INFO L111 eAbstractionObserver]: Analyzing ICFG minepump_spec4_product58.cil.c [2020-10-23 20:13:47,084 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:AcceleratedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-23 20:13:47,089 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 5 error locations. [2020-10-23 20:13:47,100 INFO L253 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2020-10-23 20:13:47,122 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-23 20:13:47,123 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-23 20:13:47,123 INFO L379 AbstractCegarLoop]: Compute interpolants for AcceleratedInterpolation [2020-10-23 20:13:47,123 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-23 20:13:47,123 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-23 20:13:47,123 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-23 20:13:47,123 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-23 20:13:47,123 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-23 20:13:47,150 INFO L276 IsEmpty]: Start isEmpty. Operand 347 states. [2020-10-23 20:13:47,172 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 149 [2020-10-23 20:13:47,173 INFO L414 BasicCegarLoop]: Found error trace [2020-10-23 20:13:47,174 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-23 20:13:47,174 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 20:13:47,181 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-23 20:13:47,182 INFO L82 PathProgramCache]: Analyzing trace with hash 715144511, now seen corresponding path program 1 times [2020-10-23 20:13:47,192 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-23 20:13:47,192 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [639342041] [2020-10-23 20:13:47,193 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-23 20:13:47,276 INFO L321 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-10-23 20:13:47,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:13:48,202 WARN L193 SmtUtils]: Spent 400.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2020-10-23 20:13:48,205 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-23 20:13:48,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:13:48,305 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2020-10-23 20:13:48,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:13:48,308 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2020-10-23 20:13:48,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:13:48,311 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2020-10-23 20:13:48,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:13:48,315 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-10-23 20:13:48,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:13:48,318 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2020-10-23 20:13:48,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:13:48,321 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2020-10-23 20:13:48,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:13:48,389 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 20:13:48,391 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [639342041] [2020-10-23 20:13:48,393 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-23 20:13:48,393 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-23 20:13:48,394 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [441279781] [2020-10-23 20:13:48,400 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-23 20:13:48,400 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-23 20:13:48,416 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-23 20:13:48,417 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-23 20:13:48,419 INFO L87 Difference]: Start difference. First operand 347 states. Second operand 3 states. [2020-10-23 20:13:50,467 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-23 20:13:50,468 INFO L93 Difference]: Finished difference Result 554 states and 649 transitions. [2020-10-23 20:13:50,469 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-23 20:13:50,471 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 148 [2020-10-23 20:13:50,474 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-23 20:13:50,505 INFO L225 Difference]: With dead ends: 554 [2020-10-23 20:13:50,505 INFO L226 Difference]: Without dead ends: 337 [2020-10-23 20:13:50,518 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-23 20:13:50,539 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 337 states. [2020-10-23 20:13:50,721 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 337 to 293. [2020-10-23 20:13:50,723 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 293 states. [2020-10-23 20:13:50,728 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 293 states to 293 states and 316 transitions. [2020-10-23 20:13:50,731 INFO L78 Accepts]: Start accepts. Automaton has 293 states and 316 transitions. Word has length 148 [2020-10-23 20:13:50,734 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-23 20:13:50,735 INFO L481 AbstractCegarLoop]: Abstraction has 293 states and 316 transitions. [2020-10-23 20:13:50,735 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-23 20:13:50,736 INFO L276 IsEmpty]: Start isEmpty. Operand 293 states and 316 transitions. [2020-10-23 20:13:50,751 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 150 [2020-10-23 20:13:50,751 INFO L414 BasicCegarLoop]: Found error trace [2020-10-23 20:13:50,752 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-23 20:13:50,756 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-23 20:13:50,756 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 20:13:50,757 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-23 20:13:50,757 INFO L82 PathProgramCache]: Analyzing trace with hash -1309220002, now seen corresponding path program 1 times [2020-10-23 20:13:50,757 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-23 20:13:50,758 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1729840296] [2020-10-23 20:13:50,758 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-23 20:13:50,772 INFO L321 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-10-23 20:13:50,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:13:51,391 WARN L193 SmtUtils]: Spent 384.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2020-10-23 20:13:51,392 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-23 20:13:51,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:13:51,450 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2020-10-23 20:13:51,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:13:51,454 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2020-10-23 20:13:51,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:13:51,457 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2020-10-23 20:13:51,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:13:51,471 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-10-23 20:13:51,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:13:51,473 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2020-10-23 20:13:51,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:13:51,475 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2020-10-23 20:13:51,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:13:51,515 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 20:13:51,516 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1729840296] [2020-10-23 20:13:51,516 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-23 20:13:51,516 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-23 20:13:51,517 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [293985479] [2020-10-23 20:13:51,518 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-23 20:13:51,518 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-23 20:13:51,519 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-23 20:13:51,519 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-23 20:13:51,519 INFO L87 Difference]: Start difference. First operand 293 states and 316 transitions. Second operand 4 states. [2020-10-23 20:13:52,429 WARN L193 SmtUtils]: Spent 347.00 ms on a formula simplification that was a NOOP. DAG size: 205 [2020-10-23 20:13:53,821 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-23 20:13:53,821 INFO L93 Difference]: Finished difference Result 464 states and 516 transitions. [2020-10-23 20:13:53,822 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-23 20:13:53,822 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 149 [2020-10-23 20:13:53,823 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-23 20:13:53,826 INFO L225 Difference]: With dead ends: 464 [2020-10-23 20:13:53,827 INFO L226 Difference]: Without dead ends: 320 [2020-10-23 20:13:53,829 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-10-23 20:13:53,830 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 320 states. [2020-10-23 20:13:53,962 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 320 to 283. [2020-10-23 20:13:53,963 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 283 states. [2020-10-23 20:13:53,965 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 283 states to 283 states and 303 transitions. [2020-10-23 20:13:53,966 INFO L78 Accepts]: Start accepts. Automaton has 283 states and 303 transitions. Word has length 149 [2020-10-23 20:13:53,967 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-23 20:13:53,967 INFO L481 AbstractCegarLoop]: Abstraction has 283 states and 303 transitions. [2020-10-23 20:13:53,967 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-23 20:13:53,967 INFO L276 IsEmpty]: Start isEmpty. Operand 283 states and 303 transitions. [2020-10-23 20:13:53,969 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 163 [2020-10-23 20:13:53,969 INFO L414 BasicCegarLoop]: Found error trace [2020-10-23 20:13:53,969 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-23 20:13:53,970 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-23 20:13:53,970 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 20:13:53,970 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-23 20:13:53,971 INFO L82 PathProgramCache]: Analyzing trace with hash -1366487679, now seen corresponding path program 1 times [2020-10-23 20:13:53,971 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-23 20:13:53,971 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [652550060] [2020-10-23 20:13:53,971 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-23 20:13:53,975 INFO L321 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-10-23 20:13:54,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:13:54,429 WARN L193 SmtUtils]: Spent 314.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2020-10-23 20:13:54,431 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-23 20:13:54,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:13:54,490 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2020-10-23 20:13:54,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:13:54,492 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2020-10-23 20:13:54,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:13:54,494 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2020-10-23 20:13:54,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:13:54,544 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-10-23 20:13:54,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:13:54,560 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2020-10-23 20:13:54,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:13:54,580 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2020-10-23 20:13:54,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:13:54,582 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 149 [2020-10-23 20:13:54,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:13:54,638 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 20:13:54,640 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [652550060] [2020-10-23 20:13:54,640 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-23 20:13:54,640 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-10-23 20:13:54,641 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [745965390] [2020-10-23 20:13:54,642 INFO L461 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-10-23 20:13:54,642 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-23 20:13:54,643 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-10-23 20:13:54,643 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2020-10-23 20:13:54,643 INFO L87 Difference]: Start difference. First operand 283 states and 303 transitions. Second operand 10 states. [2020-10-23 20:13:55,263 WARN L193 SmtUtils]: Spent 312.00 ms on a formula simplification that was a NOOP. DAG size: 204 [2020-10-23 20:13:55,760 WARN L193 SmtUtils]: Spent 365.00 ms on a formula simplification that was a NOOP. DAG size: 207 [2020-10-23 20:13:56,179 WARN L193 SmtUtils]: Spent 392.00 ms on a formula simplification that was a NOOP. DAG size: 210 [2020-10-23 20:13:56,634 WARN L193 SmtUtils]: Spent 408.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2020-10-23 20:13:57,045 WARN L193 SmtUtils]: Spent 374.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2020-10-23 20:13:57,430 WARN L193 SmtUtils]: Spent 362.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2020-10-23 20:13:59,563 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-23 20:13:59,563 INFO L93 Difference]: Finished difference Result 510 states and 578 transitions. [2020-10-23 20:13:59,565 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-10-23 20:13:59,565 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 162 [2020-10-23 20:13:59,566 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-23 20:13:59,569 INFO L225 Difference]: With dead ends: 510 [2020-10-23 20:13:59,569 INFO L226 Difference]: Without dead ends: 342 [2020-10-23 20:13:59,571 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 20 ImplicationChecksByTransitivity, 2.7s TimeCoverageRelationStatistics Valid=81, Invalid=191, Unknown=0, NotChecked=0, Total=272 [2020-10-23 20:13:59,572 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 342 states. [2020-10-23 20:13:59,695 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 342 to 283. [2020-10-23 20:13:59,696 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 283 states. [2020-10-23 20:13:59,698 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 283 states to 283 states and 302 transitions. [2020-10-23 20:13:59,698 INFO L78 Accepts]: Start accepts. Automaton has 283 states and 302 transitions. Word has length 162 [2020-10-23 20:13:59,699 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-23 20:13:59,699 INFO L481 AbstractCegarLoop]: Abstraction has 283 states and 302 transitions. [2020-10-23 20:13:59,699 INFO L482 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-10-23 20:13:59,699 INFO L276 IsEmpty]: Start isEmpty. Operand 283 states and 302 transitions. [2020-10-23 20:13:59,701 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 176 [2020-10-23 20:13:59,701 INFO L414 BasicCegarLoop]: Found error trace [2020-10-23 20:13:59,702 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-23 20:13:59,702 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-23 20:13:59,702 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 20:13:59,703 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-23 20:13:59,703 INFO L82 PathProgramCache]: Analyzing trace with hash 1185169655, now seen corresponding path program 1 times [2020-10-23 20:13:59,703 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-23 20:13:59,703 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1022023778] [2020-10-23 20:13:59,704 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-23 20:13:59,707 INFO L321 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-10-23 20:13:59,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:14:00,136 WARN L193 SmtUtils]: Spent 297.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2020-10-23 20:14:00,138 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-23 20:14:00,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:14:00,190 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2020-10-23 20:14:00,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:14:00,192 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2020-10-23 20:14:00,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:14:00,194 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2020-10-23 20:14:00,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:14:00,197 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-10-23 20:14:00,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:14:00,214 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2020-10-23 20:14:00,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:14:00,225 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2020-10-23 20:14:00,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:14:00,230 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-23 20:14:00,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:14:00,245 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-23 20:14:00,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:14:00,247 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 152 [2020-10-23 20:14:00,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:14:00,249 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 162 [2020-10-23 20:14:00,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:14:00,355 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 20:14:00,356 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1022023778] [2020-10-23 20:14:00,356 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-23 20:14:00,356 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-10-23 20:14:00,356 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1653283541] [2020-10-23 20:14:00,357 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-23 20:14:00,358 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-23 20:14:00,358 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-23 20:14:00,358 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2020-10-23 20:14:00,359 INFO L87 Difference]: Start difference. First operand 283 states and 302 transitions. Second operand 7 states. [2020-10-23 20:14:01,106 WARN L193 SmtUtils]: Spent 313.00 ms on a formula simplification that was a NOOP. DAG size: 204 [2020-10-23 20:14:03,226 WARN L193 SmtUtils]: Spent 323.00 ms on a formula simplification that was a NOOP. DAG size: 205 [2020-10-23 20:14:04,383 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-23 20:14:04,384 INFO L93 Difference]: Finished difference Result 692 states and 810 transitions. [2020-10-23 20:14:04,385 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2020-10-23 20:14:04,385 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 175 [2020-10-23 20:14:04,386 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-23 20:14:04,392 INFO L225 Difference]: With dead ends: 692 [2020-10-23 20:14:04,392 INFO L226 Difference]: Without dead ends: 524 [2020-10-23 20:14:04,394 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 31 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 23 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=64, Invalid=146, Unknown=0, NotChecked=0, Total=210 [2020-10-23 20:14:04,396 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 524 states. [2020-10-23 20:14:04,584 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 524 to 395. [2020-10-23 20:14:04,584 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 395 states. [2020-10-23 20:14:04,587 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 395 states to 395 states and 423 transitions. [2020-10-23 20:14:04,588 INFO L78 Accepts]: Start accepts. Automaton has 395 states and 423 transitions. Word has length 175 [2020-10-23 20:14:04,588 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-23 20:14:04,588 INFO L481 AbstractCegarLoop]: Abstraction has 395 states and 423 transitions. [2020-10-23 20:14:04,588 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-23 20:14:04,589 INFO L276 IsEmpty]: Start isEmpty. Operand 395 states and 423 transitions. [2020-10-23 20:14:04,591 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 200 [2020-10-23 20:14:04,592 INFO L414 BasicCegarLoop]: Found error trace [2020-10-23 20:14:04,592 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-23 20:14:04,592 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-23 20:14:04,593 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 20:14:04,593 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-23 20:14:04,593 INFO L82 PathProgramCache]: Analyzing trace with hash 2073667627, now seen corresponding path program 1 times [2020-10-23 20:14:04,593 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-23 20:14:04,594 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [313880110] [2020-10-23 20:14:04,594 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-23 20:14:04,597 INFO L321 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-10-23 20:14:04,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:14:05,052 WARN L193 SmtUtils]: Spent 292.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2020-10-23 20:14:05,053 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-23 20:14:05,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:14:05,135 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2020-10-23 20:14:05,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:14:05,139 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2020-10-23 20:14:05,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:14:05,144 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2020-10-23 20:14:05,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:14:05,205 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-10-23 20:14:05,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:14:05,228 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2020-10-23 20:14:05,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:14:05,249 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2020-10-23 20:14:05,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:14:05,261 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-23 20:14:05,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:14:05,266 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-23 20:14:05,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:14:05,277 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-23 20:14:05,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:14:05,280 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-10-23 20:14:05,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:14:05,283 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 176 [2020-10-23 20:14:05,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:14:05,327 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 186 [2020-10-23 20:14:05,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:14:05,388 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 20:14:05,388 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [313880110] [2020-10-23 20:14:05,389 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-23 20:14:05,389 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2020-10-23 20:14:05,393 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [305234878] [2020-10-23 20:14:05,393 INFO L461 AbstractCegarLoop]: Interpolant automaton has 15 states [2020-10-23 20:14:05,393 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-23 20:14:05,394 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2020-10-23 20:14:05,397 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=180, Unknown=0, NotChecked=0, Total=210 [2020-10-23 20:14:05,397 INFO L87 Difference]: Start difference. First operand 395 states and 423 transitions. Second operand 15 states. [2020-10-23 20:14:06,130 WARN L193 SmtUtils]: Spent 332.00 ms on a formula simplification that was a NOOP. DAG size: 204 [2020-10-23 20:14:06,651 WARN L193 SmtUtils]: Spent 350.00 ms on a formula simplification that was a NOOP. DAG size: 207 [2020-10-23 20:14:07,051 WARN L193 SmtUtils]: Spent 367.00 ms on a formula simplification that was a NOOP. DAG size: 209 [2020-10-23 20:14:07,448 WARN L193 SmtUtils]: Spent 341.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2020-10-23 20:14:07,868 WARN L193 SmtUtils]: Spent 381.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2020-10-23 20:14:08,283 WARN L193 SmtUtils]: Spent 379.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2020-10-23 20:14:09,138 WARN L193 SmtUtils]: Spent 318.00 ms on a formula simplification that was a NOOP. DAG size: 205 [2020-10-23 20:14:10,906 WARN L193 SmtUtils]: Spent 372.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2020-10-23 20:14:11,350 WARN L193 SmtUtils]: Spent 381.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2020-10-23 20:14:11,839 WARN L193 SmtUtils]: Spent 371.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2020-10-23 20:14:12,293 WARN L193 SmtUtils]: Spent 363.00 ms on a formula simplification that was a NOOP. DAG size: 207 [2020-10-23 20:14:12,686 WARN L193 SmtUtils]: Spent 353.00 ms on a formula simplification that was a NOOP. DAG size: 211 [2020-10-23 20:14:13,092 WARN L193 SmtUtils]: Spent 364.00 ms on a formula simplification that was a NOOP. DAG size: 209 [2020-10-23 20:14:13,505 WARN L193 SmtUtils]: Spent 372.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2020-10-23 20:14:13,971 WARN L193 SmtUtils]: Spent 361.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2020-10-23 20:14:14,515 WARN L193 SmtUtils]: Spent 376.00 ms on a formula simplification that was a NOOP. DAG size: 211 [2020-10-23 20:14:14,934 WARN L193 SmtUtils]: Spent 355.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2020-10-23 20:14:17,679 WARN L193 SmtUtils]: Spent 332.00 ms on a formula simplification that was a NOOP. DAG size: 204 [2020-10-23 20:14:18,073 WARN L193 SmtUtils]: Spent 337.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2020-10-23 20:14:18,768 WARN L193 SmtUtils]: Spent 347.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2020-10-23 20:14:20,461 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-23 20:14:20,461 INFO L93 Difference]: Finished difference Result 1395 states and 1732 transitions. [2020-10-23 20:14:20,462 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2020-10-23 20:14:20,463 INFO L78 Accepts]: Start accepts. Automaton has 15 states. Word has length 199 [2020-10-23 20:14:20,464 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-23 20:14:20,471 INFO L225 Difference]: With dead ends: 1395 [2020-10-23 20:14:20,471 INFO L226 Difference]: Without dead ends: 1115 [2020-10-23 20:14:20,474 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 76 GetRequests, 36 SyntacticMatches, 0 SemanticMatches, 40 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 348 ImplicationChecksByTransitivity, 8.3s TimeCoverageRelationStatistics Valid=386, Invalid=1336, Unknown=0, NotChecked=0, Total=1722 [2020-10-23 20:14:20,476 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1115 states. [2020-10-23 20:14:20,891 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1115 to 816. [2020-10-23 20:14:20,892 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 816 states. [2020-10-23 20:14:20,898 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 816 states to 816 states and 900 transitions. [2020-10-23 20:14:20,899 INFO L78 Accepts]: Start accepts. Automaton has 816 states and 900 transitions. Word has length 199 [2020-10-23 20:14:20,899 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-23 20:14:20,899 INFO L481 AbstractCegarLoop]: Abstraction has 816 states and 900 transitions. [2020-10-23 20:14:20,899 INFO L482 AbstractCegarLoop]: Interpolant automaton has 15 states. [2020-10-23 20:14:20,900 INFO L276 IsEmpty]: Start isEmpty. Operand 816 states and 900 transitions. [2020-10-23 20:14:20,906 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 285 [2020-10-23 20:14:20,906 INFO L414 BasicCegarLoop]: Found error trace [2020-10-23 20:14:20,908 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2020-10-23 20:14:20,909 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-23 20:14:20,909 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 20:14:20,909 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-23 20:14:20,910 INFO L82 PathProgramCache]: Analyzing trace with hash -156017376, now seen corresponding path program 1 times [2020-10-23 20:14:20,910 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-23 20:14:20,911 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1350139189] [2020-10-23 20:14:20,911 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-23 20:14:21,230 WARN L193 SmtUtils]: Spent 264.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 68 [2020-10-23 20:14:21,617 WARN L193 SmtUtils]: Spent 246.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 68 [2020-10-23 20:14:22,005 WARN L193 SmtUtils]: Spent 284.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 68 [2020-10-23 20:14:22,415 WARN L193 SmtUtils]: Spent 298.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 69 [2020-10-23 20:14:22,528 WARN L193 SmtUtils]: Spent 104.00 ms on a formula simplification that was a NOOP. DAG size: 63 [2020-10-23 20:14:22,840 WARN L193 SmtUtils]: Spent 305.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 72 [2020-10-23 20:14:22,951 WARN L193 SmtUtils]: Spent 107.00 ms on a formula simplification that was a NOOP. DAG size: 66 [2020-10-23 20:14:23,234 WARN L193 SmtUtils]: Spent 274.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 68 [2020-10-23 20:14:23,342 WARN L193 SmtUtils]: Spent 103.00 ms on a formula simplification that was a NOOP. DAG size: 62 [2020-10-23 20:14:23,614 WARN L193 SmtUtils]: Spent 266.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 69 [2020-10-23 20:14:23,991 WARN L193 SmtUtils]: Spent 271.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 68 [2020-10-23 20:14:24,096 WARN L193 SmtUtils]: Spent 100.00 ms on a formula simplification that was a NOOP. DAG size: 62 [2020-10-23 20:14:24,381 WARN L193 SmtUtils]: Spent 278.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 69 [2020-10-23 20:14:24,775 WARN L193 SmtUtils]: Spent 285.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 72 [2020-10-23 20:14:24,888 WARN L193 SmtUtils]: Spent 108.00 ms on a formula simplification that was a NOOP. DAG size: 66 [2020-10-23 20:14:25,162 WARN L193 SmtUtils]: Spent 269.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 69 [2020-10-23 20:14:25,535 WARN L193 SmtUtils]: Spent 267.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 69 [2020-10-23 20:14:25,902 WARN L193 SmtUtils]: Spent 263.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 72 [2020-10-23 20:14:26,027 WARN L193 SmtUtils]: Spent 118.00 ms on a formula simplification that was a NOOP. DAG size: 66 [2020-10-23 20:14:26,305 WARN L193 SmtUtils]: Spent 272.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 69 [2020-10-23 20:14:26,418 WARN L193 SmtUtils]: Spent 108.00 ms on a formula simplification that was a NOOP. DAG size: 63 [2020-10-23 20:14:26,941 WARN L193 SmtUtils]: Spent 464.00 ms on a formula simplification. DAG size of input: 151 DAG size of output: 144 [2020-10-23 20:14:27,409 WARN L193 SmtUtils]: Spent 432.00 ms on a formula simplification. DAG size of input: 150 DAG size of output: 136 [2020-10-23 20:14:27,895 WARN L193 SmtUtils]: Spent 445.00 ms on a formula simplification. DAG size of input: 150 DAG size of output: 137 [2020-10-23 20:14:28,382 WARN L193 SmtUtils]: Spent 452.00 ms on a formula simplification. DAG size of input: 151 DAG size of output: 143 [2020-10-23 20:14:28,879 WARN L193 SmtUtils]: Spent 457.00 ms on a formula simplification. DAG size of input: 151 DAG size of output: 144 [2020-10-23 20:14:29,374 WARN L193 SmtUtils]: Spent 459.00 ms on a formula simplification. DAG size of input: 151 DAG size of output: 144 [2020-10-23 20:14:29,851 WARN L193 SmtUtils]: Spent 455.00 ms on a formula simplification. DAG size of input: 150 DAG size of output: 136 [2020-10-23 20:14:30,274 WARN L193 SmtUtils]: Spent 385.00 ms on a formula simplification. DAG size of input: 150 DAG size of output: 137 [2020-10-23 20:14:30,282 INFO L309 leratedInterpolation]: Starting analysis with loop acceleration approximation UNDERAPPROXIMATION [2020-10-23 20:14:30,740 WARN L193 SmtUtils]: Spent 433.00 ms on a formula simplification. DAG size of input: 151 DAG size of output: 136 [2020-10-23 20:14:31,241 WARN L193 SmtUtils]: Spent 481.00 ms on a formula simplification. DAG size of input: 151 DAG size of output: 144 [2020-10-23 20:14:31,694 WARN L193 SmtUtils]: Spent 421.00 ms on a formula simplification. DAG size of input: 151 DAG size of output: 136 [2020-10-23 20:14:32,189 WARN L193 SmtUtils]: Spent 464.00 ms on a formula simplification. DAG size of input: 151 DAG size of output: 144 [2020-10-23 20:14:32,690 WARN L193 SmtUtils]: Spent 474.00 ms on a formula simplification. DAG size of input: 151 DAG size of output: 143 [2020-10-23 20:14:33,145 WARN L193 SmtUtils]: Spent 435.00 ms on a formula simplification. DAG size of input: 151 DAG size of output: 137 [2020-10-23 20:14:33,604 WARN L193 SmtUtils]: Spent 442.00 ms on a formula simplification. DAG size of input: 151 DAG size of output: 137 [2020-10-23 20:14:34,094 WARN L193 SmtUtils]: Spent 472.00 ms on a formula simplification. DAG size of input: 151 DAG size of output: 144 [2020-10-23 20:14:34,098 INFO L309 leratedInterpolation]: Starting analysis with loop acceleration approximation UNDERAPPROXIMATION [2020-10-23 20:14:34,606 WARN L193 SmtUtils]: Spent 486.00 ms on a formula simplification. DAG size of input: 150 DAG size of output: 143 [2020-10-23 20:14:35,118 WARN L193 SmtUtils]: Spent 492.00 ms on a formula simplification. DAG size of input: 150 DAG size of output: 143 [2020-10-23 20:14:35,563 WARN L193 SmtUtils]: Spent 425.00 ms on a formula simplification. DAG size of input: 149 DAG size of output: 136 [2020-10-23 20:14:36,072 WARN L193 SmtUtils]: Spent 482.00 ms on a formula simplification. DAG size of input: 150 DAG size of output: 143 [2020-10-23 20:14:36,544 WARN L193 SmtUtils]: Spent 455.00 ms on a formula simplification. DAG size of input: 149 DAG size of output: 136 [2020-10-23 20:14:37,003 WARN L193 SmtUtils]: Spent 441.00 ms on a formula simplification. DAG size of input: 149 DAG size of output: 135 [2020-10-23 20:14:37,505 WARN L193 SmtUtils]: Spent 480.00 ms on a formula simplification. DAG size of input: 150 DAG size of output: 142 [2020-10-23 20:14:37,969 WARN L193 SmtUtils]: Spent 435.00 ms on a formula simplification. DAG size of input: 149 DAG size of output: 135 [2020-10-23 20:14:37,975 INFO L309 leratedInterpolation]: Starting analysis with loop acceleration approximation UNDERAPPROXIMATION [2020-10-23 20:14:38,439 WARN L193 SmtUtils]: Spent 448.00 ms on a formula simplification. DAG size of input: 151 DAG size of output: 139 [2020-10-23 20:14:38,949 WARN L193 SmtUtils]: Spent 477.00 ms on a formula simplification. DAG size of input: 151 DAG size of output: 146 [2020-10-23 20:14:39,442 WARN L193 SmtUtils]: Spent 460.00 ms on a formula simplification. DAG size of input: 151 DAG size of output: 139 [2020-10-23 20:14:39,939 WARN L193 SmtUtils]: Spent 479.00 ms on a formula simplification. DAG size of input: 151 DAG size of output: 139 [2020-10-23 20:14:40,405 WARN L193 SmtUtils]: Spent 446.00 ms on a formula simplification. DAG size of input: 151 DAG size of output: 139 [2020-10-23 20:14:40,907 WARN L193 SmtUtils]: Spent 485.00 ms on a formula simplification. DAG size of input: 151 DAG size of output: 146 [2020-10-23 20:14:41,422 WARN L193 SmtUtils]: Spent 490.00 ms on a formula simplification. DAG size of input: 151 DAG size of output: 146 [2020-10-23 20:14:41,909 WARN L193 SmtUtils]: Spent 460.00 ms on a formula simplification. DAG size of input: 151 DAG size of output: 146 [2020-10-23 20:14:41,912 INFO L309 leratedInterpolation]: Starting analysis with loop acceleration approximation UNDERAPPROXIMATION [2020-10-23 20:14:44,782 WARN L193 SmtUtils]: Spent 709.00 ms on a formula simplification. DAG size of input: 204 DAG size of output: 200 [2020-10-23 20:14:44,802 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:14:46,386 WARN L193 SmtUtils]: Spent 774.00 ms on a formula simplification. DAG size of input: 206 DAG size of output: 202 [2020-10-23 20:14:46,398 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:14:47,975 WARN L193 SmtUtils]: Spent 670.00 ms on a formula simplification. DAG size of input: 206 DAG size of output: 202 [2020-10-23 20:14:47,982 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:14:50,785 WARN L193 SmtUtils]: Spent 667.00 ms on a formula simplification. DAG size of input: 206 DAG size of output: 202 [2020-10-23 20:14:50,790 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:14:52,125 WARN L193 SmtUtils]: Spent 628.00 ms on a formula simplification. DAG size of input: 206 DAG size of output: 202 [2020-10-23 20:14:54,903 WARN L193 SmtUtils]: Spent 658.00 ms on a formula simplification. DAG size of input: 204 DAG size of output: 200 [2020-10-23 20:14:54,909 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:14:57,644 WARN L193 SmtUtils]: Spent 618.00 ms on a formula simplification. DAG size of input: 204 DAG size of output: 200 [2020-10-23 20:14:57,649 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:15:00,388 WARN L193 SmtUtils]: Spent 633.00 ms on a formula simplification. DAG size of input: 204 DAG size of output: 200 [2020-10-23 20:15:00,394 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:15:00,400 INFO L309 leratedInterpolation]: Starting analysis with loop acceleration approximation UNDERAPPROXIMATION [2020-10-23 20:15:03,094 WARN L193 SmtUtils]: Spent 582.00 ms on a formula simplification. DAG size of input: 207 DAG size of output: 203 [2020-10-23 20:15:03,099 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:15:05,767 WARN L193 SmtUtils]: Spent 579.00 ms on a formula simplification. DAG size of input: 207 DAG size of output: 203 [2020-10-23 20:15:05,776 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:15:08,466 WARN L193 SmtUtils]: Spent 597.00 ms on a formula simplification. DAG size of input: 207 DAG size of output: 203 [2020-10-23 20:15:08,472 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:15:09,862 WARN L193 SmtUtils]: Spent 643.00 ms on a formula simplification. DAG size of input: 209 DAG size of output: 204 [2020-10-23 20:15:09,868 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:15:12,613 WARN L193 SmtUtils]: Spent 663.00 ms on a formula simplification. DAG size of input: 209 DAG size of output: 205 [2020-10-23 20:15:12,619 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:15:15,395 WARN L193 SmtUtils]: Spent 675.00 ms on a formula simplification. DAG size of input: 209 DAG size of output: 205 [2020-10-23 20:15:15,400 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:15:18,190 WARN L193 SmtUtils]: Spent 680.00 ms on a formula simplification. DAG size of input: 209 DAG size of output: 205 [2020-10-23 20:15:21,024 WARN L193 SmtUtils]: Spent 636.00 ms on a formula simplification. DAG size of input: 207 DAG size of output: 202 [2020-10-23 20:15:21,030 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:15:21,035 INFO L309 leratedInterpolation]: Starting analysis with loop acceleration approximation UNDERAPPROXIMATION [2020-10-23 20:15:23,809 WARN L193 SmtUtils]: Spent 677.00 ms on a formula simplification. DAG size of input: 210 DAG size of output: 207 [2020-10-23 20:15:23,815 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:15:26,593 WARN L193 SmtUtils]: Spent 695.00 ms on a formula simplification. DAG size of input: 210 DAG size of output: 207 [2020-10-23 20:15:29,353 WARN L193 SmtUtils]: Spent 671.00 ms on a formula simplification. DAG size of input: 208 DAG size of output: 205 [2020-10-23 20:15:29,357 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:15:32,126 WARN L193 SmtUtils]: Spent 685.00 ms on a formula simplification. DAG size of input: 208 DAG size of output: 205 [2020-10-23 20:15:32,131 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:15:34,916 WARN L193 SmtUtils]: Spent 706.00 ms on a formula simplification. DAG size of input: 208 DAG size of output: 205 [2020-10-23 20:15:36,671 WARN L193 SmtUtils]: Spent 642.00 ms on a formula simplification. DAG size of input: 210 DAG size of output: 207 [2020-10-23 20:15:36,676 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:15:39,493 WARN L193 SmtUtils]: Spent 741.00 ms on a formula simplification. DAG size of input: 210 DAG size of output: 207 [2020-10-23 20:15:39,498 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:15:42,252 WARN L193 SmtUtils]: Spent 664.00 ms on a formula simplification. DAG size of input: 208 DAG size of output: 205 [2020-10-23 20:15:42,259 INFO L309 leratedInterpolation]: Starting analysis with loop acceleration approximation UNDERAPPROXIMATION [2020-10-23 20:15:45,001 WARN L193 SmtUtils]: Spent 646.00 ms on a formula simplification. DAG size of input: 201 DAG size of output: 196 [2020-10-23 20:15:45,006 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:15:47,817 WARN L193 SmtUtils]: Spent 727.00 ms on a formula simplification. DAG size of input: 203 DAG size of output: 198 [2020-10-23 20:15:47,821 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:15:50,627 WARN L193 SmtUtils]: Spent 733.00 ms on a formula simplification. DAG size of input: 201 DAG size of output: 197 [2020-10-23 20:15:50,632 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:15:53,431 WARN L193 SmtUtils]: Spent 716.00 ms on a formula simplification. DAG size of input: 201 DAG size of output: 197 [2020-10-23 20:15:53,436 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:15:56,217 WARN L193 SmtUtils]: Spent 684.00 ms on a formula simplification. DAG size of input: 201 DAG size of output: 197 [2020-10-23 20:15:56,222 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:15:58,573 WARN L193 SmtUtils]: Spent 747.00 ms on a formula simplification. DAG size of input: 203 DAG size of output: 199 [2020-10-23 20:15:58,578 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:16:01,438 WARN L193 SmtUtils]: Spent 749.00 ms on a formula simplification. DAG size of input: 203 DAG size of output: 199 [2020-10-23 20:16:01,443 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:16:03,437 WARN L193 SmtUtils]: Spent 746.00 ms on a formula simplification. DAG size of input: 203 DAG size of output: 199 [2020-10-23 20:16:03,441 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:16:03,445 INFO L309 leratedInterpolation]: Starting analysis with loop acceleration approximation UNDERAPPROXIMATION [2020-10-23 20:16:04,005 WARN L193 SmtUtils]: Spent 531.00 ms on a formula simplification. DAG size of input: 150 DAG size of output: 139 [2020-10-23 20:16:04,600 WARN L193 SmtUtils]: Spent 566.00 ms on a formula simplification. DAG size of input: 151 DAG size of output: 146 [2020-10-23 20:16:05,146 WARN L193 SmtUtils]: Spent 527.00 ms on a formula simplification. DAG size of input: 150 DAG size of output: 139 [2020-10-23 20:16:05,667 WARN L193 SmtUtils]: Spent 505.00 ms on a formula simplification. DAG size of input: 150 DAG size of output: 139 [2020-10-23 20:16:06,238 WARN L193 SmtUtils]: Spent 550.00 ms on a formula simplification. DAG size of input: 150 DAG size of output: 139 [2020-10-23 20:16:06,832 WARN L193 SmtUtils]: Spent 574.00 ms on a formula simplification. DAG size of input: 151 DAG size of output: 146 [2020-10-23 20:16:07,430 WARN L193 SmtUtils]: Spent 567.00 ms on a formula simplification. DAG size of input: 151 DAG size of output: 146 [2020-10-23 20:16:07,986 WARN L193 SmtUtils]: Spent 537.00 ms on a formula simplification. DAG size of input: 151 DAG size of output: 146 [2020-10-23 20:16:07,989 INFO L309 leratedInterpolation]: Starting analysis with loop acceleration approximation UNDERAPPROXIMATION [2020-10-23 20:16:10,890 WARN L193 SmtUtils]: Spent 796.00 ms on a formula simplification. DAG size of input: 211 DAG size of output: 207 [2020-10-23 20:16:10,894 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:16:13,706 WARN L193 SmtUtils]: Spent 737.00 ms on a formula simplification. DAG size of input: 209 DAG size of output: 205 [2020-10-23 20:16:13,712 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:16:16,567 WARN L193 SmtUtils]: Spent 753.00 ms on a formula simplification. DAG size of input: 209 DAG size of output: 205 [2020-10-23 20:16:16,572 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:16:18,672 WARN L193 SmtUtils]: Spent 810.00 ms on a formula simplification. DAG size of input: 211 DAG size of output: 207 [2020-10-23 20:16:18,676 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:16:21,522 WARN L193 SmtUtils]: Spent 721.00 ms on a formula simplification. DAG size of input: 209 DAG size of output: 205 [2020-10-23 20:16:21,526 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:16:24,466 WARN L193 SmtUtils]: Spent 817.00 ms on a formula simplification. DAG size of input: 211 DAG size of output: 207 [2020-10-23 20:16:24,471 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:16:27,396 WARN L193 SmtUtils]: Spent 843.00 ms on a formula simplification. DAG size of input: 211 DAG size of output: 207 [2020-10-23 20:16:27,401 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:16:30,310 WARN L193 SmtUtils]: Spent 827.00 ms on a formula simplification. DAG size of input: 209 DAG size of output: 205 [2020-10-23 20:16:30,314 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:16:30,320 INFO L309 leratedInterpolation]: Starting analysis with loop acceleration approximation UNDERAPPROXIMATION [2020-10-23 20:16:30,912 WARN L193 SmtUtils]: Spent 567.00 ms on a formula simplification. DAG size of input: 151 DAG size of output: 146 [2020-10-23 20:16:31,450 WARN L193 SmtUtils]: Spent 519.00 ms on a formula simplification. DAG size of input: 151 DAG size of output: 139 [2020-10-23 20:16:32,031 WARN L193 SmtUtils]: Spent 550.00 ms on a formula simplification. DAG size of input: 151 DAG size of output: 139 [2020-10-23 20:16:32,633 WARN L193 SmtUtils]: Spent 580.00 ms on a formula simplification. DAG size of input: 151 DAG size of output: 146 [2020-10-23 20:16:33,150 WARN L193 SmtUtils]: Spent 497.00 ms on a formula simplification. DAG size of input: 151 DAG size of output: 139 [2020-10-23 20:16:33,757 WARN L193 SmtUtils]: Spent 583.00 ms on a formula simplification. DAG size of input: 151 DAG size of output: 146 [2020-10-23 20:16:34,335 WARN L193 SmtUtils]: Spent 559.00 ms on a formula simplification. DAG size of input: 151 DAG size of output: 146 [2020-10-23 20:16:34,854 WARN L193 SmtUtils]: Spent 501.00 ms on a formula simplification. DAG size of input: 151 DAG size of output: 139 [2020-10-23 20:16:34,856 INFO L309 leratedInterpolation]: Starting analysis with loop acceleration approximation UNDERAPPROXIMATION [2020-10-23 20:16:37,652 WARN L193 SmtUtils]: Spent 696.00 ms on a formula simplification. DAG size of input: 205 DAG size of output: 202 [2020-10-23 20:16:37,656 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:16:40,410 WARN L193 SmtUtils]: Spent 675.00 ms on a formula simplification. DAG size of input: 205 DAG size of output: 202 [2020-10-23 20:16:40,413 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:16:42,394 WARN L193 SmtUtils]: Spent 746.00 ms on a formula simplification. DAG size of input: 207 DAG size of output: 204 [2020-10-23 20:16:42,398 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:16:45,255 WARN L193 SmtUtils]: Spent 767.00 ms on a formula simplification. DAG size of input: 207 DAG size of output: 204 [2020-10-23 20:16:45,259 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:16:48,224 WARN L193 SmtUtils]: Spent 895.00 ms on a formula simplification. DAG size of input: 207 DAG size of output: 204 [2020-10-23 20:16:48,228 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:16:51,336 WARN L193 SmtUtils]: Spent 1.03 s on a formula simplification. DAG size of input: 205 DAG size of output: 202 [2020-10-23 20:16:51,341 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:16:54,127 WARN L193 SmtUtils]: Spent 839.00 ms on a formula simplification. DAG size of input: 207 DAG size of output: 204 [2020-10-23 20:16:54,132 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:16:57,107 WARN L193 SmtUtils]: Spent 888.00 ms on a formula simplification. DAG size of input: 205 DAG size of output: 202 [2020-10-23 20:16:57,111 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:16:57,114 INFO L309 leratedInterpolation]: Starting analysis with loop acceleration approximation UNDERAPPROXIMATION [2020-10-23 20:16:59,726 WARN L193 SmtUtils]: Spent 931.00 ms on a formula simplification. DAG size of input: 209 DAG size of output: 205 [2020-10-23 20:16:59,731 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:17:02,727 WARN L193 SmtUtils]: Spent 1.02 s on a formula simplification. DAG size of input: 209 DAG size of output: 205 [2020-10-23 20:17:02,732 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:17:05,771 WARN L193 SmtUtils]: Spent 920.00 ms on a formula simplification. DAG size of input: 207 DAG size of output: 203 [2020-10-23 20:17:08,827 WARN L193 SmtUtils]: Spent 961.00 ms on a formula simplification. DAG size of input: 207 DAG size of output: 203 [2020-10-23 20:17:08,834 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:17:11,838 WARN L193 SmtUtils]: Spent 917.00 ms on a formula simplification. DAG size of input: 207 DAG size of output: 203 [2020-10-23 20:17:14,839 WARN L193 SmtUtils]: Spent 881.00 ms on a formula simplification. DAG size of input: 207 DAG size of output: 203 [2020-10-23 20:17:14,844 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:17:17,902 WARN L193 SmtUtils]: Spent 954.00 ms on a formula simplification. DAG size of input: 209 DAG size of output: 205 [2020-10-23 20:17:17,906 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:17:20,942 WARN L193 SmtUtils]: Spent 950.00 ms on a formula simplification. DAG size of input: 209 DAG size of output: 205 [2020-10-23 20:17:20,946 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:17:20,950 INFO L309 leratedInterpolation]: Starting analysis with loop acceleration approximation UNDERAPPROXIMATION [2020-10-23 20:17:24,021 WARN L193 SmtUtils]: Spent 979.00 ms on a formula simplification. DAG size of input: 212 DAG size of output: 209 [2020-10-23 20:17:24,026 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:17:27,091 WARN L193 SmtUtils]: Spent 959.00 ms on a formula simplification. DAG size of input: 212 DAG size of output: 209 [2020-10-23 20:17:27,096 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:17:30,218 WARN L193 SmtUtils]: Spent 1.04 s on a formula simplification. DAG size of input: 212 DAG size of output: 209 [2020-10-23 20:17:30,223 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:17:33,243 WARN L193 SmtUtils]: Spent 936.00 ms on a formula simplification. DAG size of input: 212 DAG size of output: 209 [2020-10-23 20:17:33,248 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:17:36,300 WARN L193 SmtUtils]: Spent 958.00 ms on a formula simplification. DAG size of input: 210 DAG size of output: 207 [2020-10-23 20:17:36,305 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:17:39,261 WARN L193 SmtUtils]: Spent 872.00 ms on a formula simplification. DAG size of input: 210 DAG size of output: 207 [2020-10-23 20:17:39,264 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:17:42,222 WARN L193 SmtUtils]: Spent 864.00 ms on a formula simplification. DAG size of input: 210 DAG size of output: 207 [2020-10-23 20:17:42,226 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:17:45,170 WARN L193 SmtUtils]: Spent 845.00 ms on a formula simplification. DAG size of input: 210 DAG size of output: 207 [2020-10-23 20:17:45,175 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:17:45,178 INFO L309 leratedInterpolation]: Starting analysis with loop acceleration approximation UNDERAPPROXIMATION [2020-10-23 20:17:45,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-23 20:17:45,783 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-23 20:17:46,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-23 20:17:46,319 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-23 20:17:46,618 INFO L173 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2020-10-23 20:17:46,618 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-10-23 20:17:46,622 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-23 20:17:46,692 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 23.10 08:17:46 BoogieIcfgContainer [2020-10-23 20:17:46,693 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-23 20:17:46,700 INFO L168 Benchmark]: Toolchain (without parser) took 242088.08 ms. Allocated memory was 151.0 MB in the beginning and 457.2 MB in the end (delta: 306.2 MB). Free memory was 126.4 MB in the beginning and 345.8 MB in the end (delta: -219.4 MB). Peak memory consumption was 289.4 MB. Max. memory is 8.0 GB. [2020-10-23 20:17:46,701 INFO L168 Benchmark]: CDTParser took 0.28 ms. Allocated memory is still 151.0 MB. Free memory is still 126.3 MB. There was no memory consumed. Max. memory is 8.0 GB. [2020-10-23 20:17:46,709 INFO L168 Benchmark]: CACSL2BoogieTranslator took 636.06 ms. Allocated memory is still 151.0 MB. Free memory was 125.8 MB in the beginning and 103.9 MB in the end (delta: 22.0 MB). Peak memory consumption was 22.0 MB. Max. memory is 8.0 GB. [2020-10-23 20:17:46,710 INFO L168 Benchmark]: Boogie Preprocessor took 172.56 ms. Allocated memory is still 151.0 MB. Free memory was 103.9 MB in the beginning and 132.8 MB in the end (delta: -29.0 MB). Peak memory consumption was 9.0 MB. Max. memory is 8.0 GB. [2020-10-23 20:17:46,710 INFO L168 Benchmark]: RCFGBuilder took 1634.02 ms. Allocated memory is still 151.0 MB. Free memory was 132.5 MB in the beginning and 85.2 MB in the end (delta: 47.2 MB). Peak memory consumption was 65.1 MB. Max. memory is 8.0 GB. [2020-10-23 20:17:46,711 INFO L168 Benchmark]: TraceAbstraction took 239632.75 ms. Allocated memory was 151.0 MB in the beginning and 457.2 MB in the end (delta: 306.2 MB). Free memory was 84.7 MB in the beginning and 345.8 MB in the end (delta: -261.2 MB). Peak memory consumption was 246.9 MB. Max. memory is 8.0 GB. [2020-10-23 20:17:46,720 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.28 ms. Allocated memory is still 151.0 MB. Free memory is still 126.3 MB. There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 636.06 ms. Allocated memory is still 151.0 MB. Free memory was 125.8 MB in the beginning and 103.9 MB in the end (delta: 22.0 MB). Peak memory consumption was 22.0 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 172.56 ms. Allocated memory is still 151.0 MB. Free memory was 103.9 MB in the beginning and 132.8 MB in the end (delta: -29.0 MB). Peak memory consumption was 9.0 MB. Max. memory is 8.0 GB. * RCFGBuilder took 1634.02 ms. Allocated memory is still 151.0 MB. Free memory was 132.5 MB in the beginning and 85.2 MB in the end (delta: 47.2 MB). Peak memory consumption was 65.1 MB. Max. memory is 8.0 GB. * TraceAbstraction took 239632.75 ms. Allocated memory was 151.0 MB in the beginning and 457.2 MB in the end (delta: 306.2 MB). Free memory was 84.7 MB in the beginning and 345.8 MB in the end (delta: -261.2 MB). Peak memory consumption was 246.9 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: [L211] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L453] int waterLevel = 1; [L454] int methaneLevelCritical = 0; [L556] int cleanupTimeShifts = 4; [L696] int pumpRunning = 0; [L697] int systemActive = 1; [L635] int retValue_acc ; [L636] int tmp ; [L640] FCALL select_helpers() [L641] FCALL select_features() [L642] CALL, EXPR valid_product() [L684] int retValue_acc ; [L687] retValue_acc = 1 [L688] return (retValue_acc); [L642] RET, EXPR valid_product() [L642] tmp = valid_product() [L644] COND TRUE \read(tmp) [L646] FCALL setup() [L647] CALL runTest() [L626] CALL test() [L920] int splverifierCounter ; [L921] int tmp ; [L922] int tmp___0 ; [L923] int tmp___1 ; [L924] int tmp___2 ; [L927] splverifierCounter = 0 [L929] COND TRUE 1 [L931] COND TRUE splverifierCounter < 4 [L937] tmp = __VERIFIER_nondet_int() [L939] COND TRUE \read(tmp) [L941] CALL waterRise() [L471] COND TRUE waterLevel < 2 [L472] waterLevel = waterLevel + 1 [L941] RET waterRise() [L947] tmp___0 = __VERIFIER_nondet_int() [L949] COND FALSE !(\read(tmp___0)) [L957] tmp___2 = __VERIFIER_nondet_int() [L959] COND TRUE \read(tmp___2) [L961] CALL startSystem() [L914] systemActive = 1 [L961] RET startSystem() [L974] CALL timeShift() [L703] COND FALSE !(\read(pumpRunning)) [L710] COND TRUE \read(systemActive) [L712] CALL processEnvironment() [L758] int tmp ; [L761] COND FALSE !(\read(pumpRunning)) [L776] CALL processEnvironment__wrappee__highWaterSensor() [L732] int tmp ; [L735] COND TRUE ! pumpRunning [L737] CALL, EXPR isHighWaterLevel() [L873] int retValue_acc ; [L874] int tmp ; [L875] int tmp___0 ; [L879] CALL, EXPR isHighWaterSensorDry() [L533] int retValue_acc ; [L536] COND TRUE waterLevel < 2 [L537] retValue_acc = 1 [L538] return (retValue_acc); [L879] RET, EXPR isHighWaterSensorDry() [L879] tmp = isHighWaterSensorDry() [L881] COND TRUE \read(tmp) [L882] tmp___0 = 0 [L886] retValue_acc = tmp___0 [L887] return (retValue_acc); [L737] RET, EXPR isHighWaterLevel() [L737] tmp = isHighWaterLevel() [L739] COND FALSE !(\read(tmp)) [L745] FCALL processEnvironment__wrappee__base() [L776] RET processEnvironment__wrappee__highWaterSensor() [L712] RET processEnvironment() [L718] CALL __utac_acc__Specification4_spec__1() [L412] int tmp ; [L413] int tmp___0 ; [L417] CALL, EXPR getWaterLevel() [L524] int retValue_acc ; [L527] retValue_acc = waterLevel [L528] return (retValue_acc); [L417] RET, EXPR getWaterLevel() [L417] tmp = getWaterLevel() [L419] COND FALSE !(tmp == 0) [L718] RET __utac_acc__Specification4_spec__1() [L974] RET timeShift() [L929] COND TRUE 1 [L931] COND TRUE splverifierCounter < 4 [L937] tmp = __VERIFIER_nondet_int() [L939] COND TRUE \read(tmp) [L941] CALL waterRise() [L471] COND TRUE waterLevel < 2 [L472] waterLevel = waterLevel + 1 [L941] RET waterRise() [L947] tmp___0 = __VERIFIER_nondet_int() [L949] COND FALSE !(\read(tmp___0)) [L957] tmp___2 = __VERIFIER_nondet_int() [L959] COND TRUE \read(tmp___2) [L961] CALL startSystem() [L914] systemActive = 1 [L961] RET startSystem() [L974] CALL timeShift() [L703] COND FALSE !(\read(pumpRunning)) [L710] COND TRUE \read(systemActive) [L712] CALL processEnvironment() [L758] int tmp ; [L761] COND FALSE !(\read(pumpRunning)) [L776] CALL processEnvironment__wrappee__highWaterSensor() [L732] int tmp ; [L735] COND TRUE ! pumpRunning [L737] CALL, EXPR isHighWaterLevel() [L873] int retValue_acc ; [L874] int tmp ; [L875] int tmp___0 ; [L879] CALL, EXPR isHighWaterSensorDry() [L533] int retValue_acc ; [L536] COND TRUE waterLevel < 2 [L537] retValue_acc = 1 [L538] return (retValue_acc); [L879] RET, EXPR isHighWaterSensorDry() [L879] tmp = isHighWaterSensorDry() [L881] COND TRUE \read(tmp) [L882] tmp___0 = 0 [L886] retValue_acc = tmp___0 [L887] return (retValue_acc); [L737] RET, EXPR isHighWaterLevel() [L737] tmp = isHighWaterLevel() [L739] COND FALSE !(\read(tmp)) [L745] FCALL processEnvironment__wrappee__base() [L776] RET processEnvironment__wrappee__highWaterSensor() [L712] RET processEnvironment() [L718] CALL __utac_acc__Specification4_spec__1() [L412] int tmp ; [L413] int tmp___0 ; [L417] CALL, EXPR getWaterLevel() [L524] int retValue_acc ; [L527] retValue_acc = waterLevel [L528] return (retValue_acc); [L417] RET, EXPR getWaterLevel() [L417] tmp = getWaterLevel() [L419] COND TRUE tmp == 0 [L421] CALL, EXPR isPumpRunning() [L828] int retValue_acc ; [L831] retValue_acc = pumpRunning [L832] return (retValue_acc); [L421] RET, EXPR isPumpRunning() [L421] tmp___0 = isPumpRunning() [L423] COND TRUE \read(tmp___0) [L425] CALL __automaton_fail() [L441] CALL reach_error() [L3] __assert_fail("0", "minepump_spec4_product58.cil.c", 3, "reach_error") - StatisticsResult: Ultimate Automizer benchmark data CFG has 43 procedures, 663 locations, 5 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 239.5s, OverallIterations: 6, TraceHistogramMax: 2, AutomataDifference: 28.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 1398 SDtfs, 2825 SDslu, 2231 SDs, 0 SdLazy, 5587 SolverSat, 979 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 13.2s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 188 GetRequests, 116 SyntacticMatches, 0 SemanticMatches, 72 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 391 ImplicationChecksByTransitivity, 13.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=816occurred in iteration=5, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 1.0s AutomataMinimizationTime, 5 MinimizatonAttempts, 568 StatesRemovedByMinimization, 5 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: No data available, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! [MP z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forcibly destroying the process Received shutdown request...