/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_product27.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.2.0-b8ad66e [2020-10-23 20:06:00,687 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-23 20:06:00,690 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-23 20:06:00,731 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-23 20:06:00,732 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-23 20:06:00,733 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-23 20:06:00,735 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-23 20:06:00,738 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-23 20:06:00,740 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-23 20:06:00,741 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-23 20:06:00,743 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-23 20:06:00,745 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-23 20:06:00,745 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-23 20:06:00,747 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-23 20:06:00,749 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-23 20:06:00,750 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-23 20:06:00,752 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-23 20:06:00,753 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-23 20:06:00,759 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-23 20:06:00,762 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-23 20:06:00,764 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-23 20:06:00,766 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-23 20:06:00,768 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-23 20:06:00,770 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-23 20:06:00,773 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-23 20:06:00,774 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-23 20:06:00,774 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-23 20:06:00,776 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-23 20:06:00,777 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-23 20:06:00,778 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-23 20:06:00,778 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-23 20:06:00,779 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-23 20:06:00,780 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-23 20:06:00,781 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-23 20:06:00,783 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-23 20:06:00,783 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-23 20:06:00,784 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-23 20:06:00,785 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-23 20:06:00,785 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-23 20:06:00,786 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-23 20:06:00,787 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-23 20:06:00,788 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 20:06:00,801 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-23 20:06:00,802 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-23 20:06:00,804 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-23 20:06:00,804 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-23 20:06:00,804 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-23 20:06:00,805 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-23 20:06:00,805 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-23 20:06:00,805 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-23 20:06:00,806 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-23 20:06:00,806 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-23 20:06:00,806 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-23 20:06:00,807 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-23 20:06:00,807 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-23 20:06:00,807 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-23 20:06:00,808 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-23 20:06:00,808 INFO L138 SettingsManager]: * Size of a code block=SingleStatement [2020-10-23 20:06:00,808 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-23 20:06:00,808 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-23 20:06:00,809 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-23 20:06:00,809 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-23 20:06:00,809 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=AcceleratedInterpolation [2020-10-23 20:06:00,810 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-23 20:06:00,810 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2020-10-23 20:06:01,220 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-23 20:06:01,270 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-23 20:06:01,274 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-23 20:06:01,276 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-23 20:06:01,277 INFO L275 PluginConnector]: CDTParser initialized [2020-10-23 20:06:01,278 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec4_product27.cil.c [2020-10-23 20:06:01,368 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/492752f3f/a94421641aae4ee5b228dd1223995957/FLAGd6864c64a [2020-10-23 20:06:02,069 INFO L306 CDTParser]: Found 1 translation units. [2020-10-23 20:06:02,070 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/minepump_spec4_product27.cil.c [2020-10-23 20:06:02,088 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/492752f3f/a94421641aae4ee5b228dd1223995957/FLAGd6864c64a [2020-10-23 20:06:02,384 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/492752f3f/a94421641aae4ee5b228dd1223995957 [2020-10-23 20:06:02,391 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-23 20:06:02,403 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-23 20:06:02,408 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-23 20:06:02,408 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-23 20:06:02,413 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-23 20:06:02,414 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.10 08:06:02" (1/1) ... [2020-10-23 20:06:02,418 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@761a363d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 08:06:02, skipping insertion in model container [2020-10-23 20:06:02,419 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.10 08:06:02" (1/1) ... [2020-10-23 20:06:02,429 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-23 20:06:02,498 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-23 20:06:02,927 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-23 20:06:02,944 INFO L203 MainTranslator]: Completed pre-run [2020-10-23 20:06:03,054 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-23 20:06:03,103 INFO L208 MainTranslator]: Completed translation [2020-10-23 20:06:03,104 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 08:06:03 WrapperNode [2020-10-23 20:06:03,104 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-23 20:06:03,106 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-23 20:06:03,106 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-23 20:06:03,107 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-23 20:06:03,122 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 08:06:03" (1/1) ... [2020-10-23 20:06:03,123 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 08:06:03" (1/1) ... [2020-10-23 20:06:03,165 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 08:06:03" (1/1) ... [2020-10-23 20:06:03,166 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 08:06:03" (1/1) ... [2020-10-23 20:06:03,238 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 08:06:03" (1/1) ... [2020-10-23 20:06:03,253 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 08:06:03" (1/1) ... [2020-10-23 20:06:03,258 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 08:06:03" (1/1) ... [2020-10-23 20:06:03,266 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-23 20:06:03,267 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-23 20:06:03,267 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-23 20:06:03,267 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-23 20:06:03,268 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 08:06:03" (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 20:06:03,350 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-23 20:06:03,350 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-23 20:06:03,351 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2020-10-23 20:06:03,351 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2020-10-23 20:06:03,351 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2020-10-23 20:06:03,351 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2020-10-23 20:06:03,352 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2020-10-23 20:06:03,352 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2020-10-23 20:06:03,352 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-23 20:06:03,352 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2020-10-23 20:06:03,352 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification4_spec__1 [2020-10-23 20:06:03,353 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2020-10-23 20:06:03,353 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2020-10-23 20:06:03,353 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2020-10-23 20:06:03,353 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2020-10-23 20:06:03,353 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2020-10-23 20:06:03,354 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2020-10-23 20:06:03,354 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterSensorDry [2020-10-23 20:06:03,354 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2020-10-23 20:06:03,354 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2020-10-23 20:06:03,354 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2020-10-23 20:06:03,355 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2020-10-23 20:06:03,355 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump__wrappee__lowWaterSensor [2020-10-23 20:06:03,355 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2020-10-23 20:06:03,355 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2020-10-23 20:06:03,355 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2020-10-23 20:06:03,355 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2020-10-23 20:06:03,356 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2020-10-23 20:06:03,356 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterLevel [2020-10-23 20:06:03,356 INFO L138 BoogieDeclarations]: Found implementation of procedure stopSystem [2020-10-23 20:06:03,356 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2020-10-23 20:06:03,356 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2020-10-23 20:06:03,357 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2020-10-23 20:06:03,357 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2020-10-23 20:06:03,357 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2020-10-23 20:06:03,357 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2020-10-23 20:06:03,357 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2020-10-23 20:06:03,358 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2020-10-23 20:06:03,358 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2020-10-23 20:06:03,358 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2020-10-23 20:06:03,358 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-10-23 20:06:03,358 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-10-23 20:06:03,359 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2020-10-23 20:06:03,359 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-23 20:06:03,359 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-10-23 20:06:03,359 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2020-10-23 20:06:03,360 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2020-10-23 20:06:03,360 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2020-10-23 20:06:03,360 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2020-10-23 20:06:03,360 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2020-10-23 20:06:03,360 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2020-10-23 20:06:03,361 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2020-10-23 20:06:03,361 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2020-10-23 20:06:03,361 INFO L130 BoogieDeclarations]: Found specification of procedure test [2020-10-23 20:06:03,361 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2020-10-23 20:06:03,361 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2020-10-23 20:06:03,361 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2020-10-23 20:06:03,362 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2020-10-23 20:06:03,362 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-23 20:06:03,362 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2020-10-23 20:06:03,362 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2020-10-23 20:06:03,362 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2020-10-23 20:06:03,362 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification4_spec__1 [2020-10-23 20:06:03,363 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2020-10-23 20:06:03,363 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2020-10-23 20:06:03,363 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2020-10-23 20:06:03,363 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterSensorDry [2020-10-23 20:06:03,364 INFO L130 BoogieDeclarations]: Found specification of procedure stopSystem [2020-10-23 20:06:03,364 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2020-10-23 20:06:03,364 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2020-10-23 20:06:03,364 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2020-10-23 20:06:03,365 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2020-10-23 20:06:03,380 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterLevel [2020-10-23 20:06:03,381 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump__wrappee__lowWaterSensor [2020-10-23 20:06:03,381 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2020-10-23 20:06:03,381 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2020-10-23 20:06:03,381 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-10-23 20:06:03,382 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-10-23 20:06:03,383 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2020-10-23 20:06:03,383 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-10-23 20:06:03,383 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-10-23 20:06:03,383 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-23 20:06:03,383 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-10-23 20:06:03,384 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2020-10-23 20:06:03,384 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-23 20:06:03,384 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2020-10-23 20:06:03,384 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2020-10-23 20:06:03,384 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-10-23 20:06:03,385 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2020-10-23 20:06:03,385 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2020-10-23 20:06:03,385 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2020-10-23 20:06:03,387 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-23 20:06:03,387 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-23 20:06:03,387 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-23 20:06:04,671 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-23 20:06:04,671 INFO L298 CfgBuilder]: Removed 5 assume(true) statements. [2020-10-23 20:06:04,674 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.10 08:06:04 BoogieIcfgContainer [2020-10-23 20:06:04,675 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-23 20:06:04,677 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-23 20:06:04,677 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-23 20:06:04,682 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-23 20:06:04,682 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.10 08:06:02" (1/3) ... [2020-10-23 20:06:04,683 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4d220eda and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.10 08:06:04, skipping insertion in model container [2020-10-23 20:06:04,683 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 08:06:03" (2/3) ... [2020-10-23 20:06:04,684 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4d220eda and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.10 08:06:04, skipping insertion in model container [2020-10-23 20:06:04,684 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.10 08:06:04" (3/3) ... [2020-10-23 20:06:04,686 INFO L111 eAbstractionObserver]: Analyzing ICFG minepump_spec4_product27.cil.c [2020-10-23 20:06:04,703 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:AcceleratedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-23 20:06:04,710 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 5 error locations. [2020-10-23 20:06:04,725 INFO L253 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2020-10-23 20:06:04,753 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-23 20:06:04,754 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-23 20:06:04,754 INFO L379 AbstractCegarLoop]: Compute interpolants for AcceleratedInterpolation [2020-10-23 20:06:04,754 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-23 20:06:04,754 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-23 20:06:04,754 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-23 20:06:04,755 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-23 20:06:04,755 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-23 20:06:04,780 INFO L276 IsEmpty]: Start isEmpty. Operand 290 states. [2020-10-23 20:06:04,800 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 149 [2020-10-23 20:06:04,801 INFO L414 BasicCegarLoop]: Found error trace [2020-10-23 20:06:04,802 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 20:06:04,802 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 20:06:04,809 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-23 20:06:04,809 INFO L82 PathProgramCache]: Analyzing trace with hash -1783625419, now seen corresponding path program 1 times [2020-10-23 20:06:04,820 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-23 20:06:04,820 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1922166905] [2020-10-23 20:06:04,820 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-23 20:06:04,907 INFO L321 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-10-23 20:06:05,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:06:05,662 WARN L193 SmtUtils]: Spent 371.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2020-10-23 20:06:05,665 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-23 20:06:05,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:06:05,784 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2020-10-23 20:06:05,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:06:05,795 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2020-10-23 20:06:05,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:06:05,800 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2020-10-23 20:06:05,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:06:05,815 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-10-23 20:06:05,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:06:05,821 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2020-10-23 20:06:05,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:06:05,827 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2020-10-23 20:06:05,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:06:05,878 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-23 20:06:05,885 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1922166905] [2020-10-23 20:06:05,888 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-23 20:06:05,889 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-23 20:06:05,890 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [874957474] [2020-10-23 20:06:05,904 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-23 20:06:05,905 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-23 20:06:05,919 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-23 20:06:05,920 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-23 20:06:05,923 INFO L87 Difference]: Start difference. First operand 290 states. Second operand 3 states. [2020-10-23 20:06:07,593 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-23 20:06:07,594 INFO L93 Difference]: Finished difference Result 437 states and 523 transitions. [2020-10-23 20:06:07,594 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-23 20:06:07,596 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 148 [2020-10-23 20:06:07,597 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-23 20:06:07,613 INFO L225 Difference]: With dead ends: 437 [2020-10-23 20:06:07,613 INFO L226 Difference]: Without dead ends: 277 [2020-10-23 20:06:07,618 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 20:06:07,636 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 277 states. [2020-10-23 20:06:07,789 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 277 to 236. [2020-10-23 20:06:07,790 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 236 states. [2020-10-23 20:06:07,795 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 236 states to 236 states and 255 transitions. [2020-10-23 20:06:07,797 INFO L78 Accepts]: Start accepts. Automaton has 236 states and 255 transitions. Word has length 148 [2020-10-23 20:06:07,801 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-23 20:06:07,801 INFO L481 AbstractCegarLoop]: Abstraction has 236 states and 255 transitions. [2020-10-23 20:06:07,801 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-23 20:06:07,801 INFO L276 IsEmpty]: Start isEmpty. Operand 236 states and 255 transitions. [2020-10-23 20:06:07,815 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 150 [2020-10-23 20:06:07,815 INFO L414 BasicCegarLoop]: Found error trace [2020-10-23 20:06:07,815 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 20:06:07,816 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-23 20:06:07,819 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 20:06:07,819 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-23 20:06:07,820 INFO L82 PathProgramCache]: Analyzing trace with hash -487015929, now seen corresponding path program 1 times [2020-10-23 20:06:07,820 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-23 20:06:07,820 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [498765360] [2020-10-23 20:06:07,820 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-23 20:06:07,830 INFO L321 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-10-23 20:06:07,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:06:08,387 WARN L193 SmtUtils]: Spent 410.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2020-10-23 20:06:08,388 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-23 20:06:08,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:06:08,496 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2020-10-23 20:06:08,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:06:08,500 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2020-10-23 20:06:08,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:06:08,503 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2020-10-23 20:06:08,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:06:08,507 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-10-23 20:06:08,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:06:08,509 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2020-10-23 20:06:08,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:06:08,512 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2020-10-23 20:06:08,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:06:08,554 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-23 20:06:08,555 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [498765360] [2020-10-23 20:06:08,555 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-23 20:06:08,556 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-23 20:06:08,556 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [145269487] [2020-10-23 20:06:08,558 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-23 20:06:08,560 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-23 20:06:08,561 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-23 20:06:08,561 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-23 20:06:08,561 INFO L87 Difference]: Start difference. First operand 236 states and 255 transitions. Second operand 4 states. [2020-10-23 20:06:09,564 WARN L193 SmtUtils]: Spent 358.00 ms on a formula simplification that was a NOOP. DAG size: 205 [2020-10-23 20:06:10,549 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-23 20:06:10,549 INFO L93 Difference]: Finished difference Result 345 states and 386 transitions. [2020-10-23 20:06:10,550 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-23 20:06:10,550 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 149 [2020-10-23 20:06:10,551 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-23 20:06:10,555 INFO L225 Difference]: With dead ends: 345 [2020-10-23 20:06:10,555 INFO L226 Difference]: Without dead ends: 260 [2020-10-23 20:06:10,558 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-10-23 20:06:10,559 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 260 states. [2020-10-23 20:06:10,672 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 260 to 226. [2020-10-23 20:06:10,673 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 226 states. [2020-10-23 20:06:10,674 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 226 states to 226 states and 242 transitions. [2020-10-23 20:06:10,675 INFO L78 Accepts]: Start accepts. Automaton has 226 states and 242 transitions. Word has length 149 [2020-10-23 20:06:10,676 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-23 20:06:10,676 INFO L481 AbstractCegarLoop]: Abstraction has 226 states and 242 transitions. [2020-10-23 20:06:10,676 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-23 20:06:10,676 INFO L276 IsEmpty]: Start isEmpty. Operand 226 states and 242 transitions. [2020-10-23 20:06:10,678 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 159 [2020-10-23 20:06:10,678 INFO L414 BasicCegarLoop]: Found error trace [2020-10-23 20:06:10,679 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-23 20:06:10,679 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-23 20:06:10,679 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 20:06:10,680 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-23 20:06:10,680 INFO L82 PathProgramCache]: Analyzing trace with hash -1621602734, now seen corresponding path program 1 times [2020-10-23 20:06:10,680 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-23 20:06:10,681 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [308828324] [2020-10-23 20:06:10,681 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-23 20:06:10,685 INFO L321 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-10-23 20:06:10,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:06:11,213 WARN L193 SmtUtils]: Spent 354.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2020-10-23 20:06:11,221 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-23 20:06:11,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:06:11,343 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2020-10-23 20:06:11,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:06:11,346 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2020-10-23 20:06:11,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:06:11,349 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2020-10-23 20:06:11,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:06:11,422 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-10-23 20:06:11,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:06:11,428 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2020-10-23 20:06:11,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:06:11,435 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 145 [2020-10-23 20:06:11,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:06:11,529 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-23 20:06:11,531 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [308828324] [2020-10-23 20:06:11,532 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-23 20:06:11,532 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-10-23 20:06:11,532 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [291853742] [2020-10-23 20:06:11,534 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-10-23 20:06:11,535 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-23 20:06:11,536 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-10-23 20:06:11,536 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2020-10-23 20:06:11,536 INFO L87 Difference]: Start difference. First operand 226 states and 242 transitions. Second operand 9 states. [2020-10-23 20:06:12,324 WARN L193 SmtUtils]: Spent 329.00 ms on a formula simplification that was a NOOP. DAG size: 204 [2020-10-23 20:06:12,852 WARN L193 SmtUtils]: Spent 385.00 ms on a formula simplification that was a NOOP. DAG size: 207 [2020-10-23 20:06:13,274 WARN L193 SmtUtils]: Spent 396.00 ms on a formula simplification that was a NOOP. DAG size: 209 [2020-10-23 20:06:13,710 WARN L193 SmtUtils]: Spent 377.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2020-10-23 20:06:14,127 WARN L193 SmtUtils]: Spent 379.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2020-10-23 20:06:14,521 WARN L193 SmtUtils]: Spent 368.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2020-10-23 20:06:15,847 WARN L193 SmtUtils]: Spent 381.00 ms on a formula simplification that was a NOOP. DAG size: 205 [2020-10-23 20:06:18,067 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-23 20:06:18,067 INFO L93 Difference]: Finished difference Result 576 states and 662 transitions. [2020-10-23 20:06:18,074 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-10-23 20:06:18,074 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 158 [2020-10-23 20:06:18,075 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-23 20:06:18,079 INFO L225 Difference]: With dead ends: 576 [2020-10-23 20:06:18,080 INFO L226 Difference]: Without dead ends: 465 [2020-10-23 20:06:18,082 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 19 SyntacticMatches, 1 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 23 ImplicationChecksByTransitivity, 3.2s TimeCoverageRelationStatistics Valid=71, Invalid=169, Unknown=0, NotChecked=0, Total=240 [2020-10-23 20:06:18,083 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 465 states. [2020-10-23 20:06:18,300 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 465 to 400. [2020-10-23 20:06:18,300 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 400 states. [2020-10-23 20:06:18,313 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 400 states to 400 states and 446 transitions. [2020-10-23 20:06:18,315 INFO L78 Accepts]: Start accepts. Automaton has 400 states and 446 transitions. Word has length 158 [2020-10-23 20:06:18,317 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-23 20:06:18,317 INFO L481 AbstractCegarLoop]: Abstraction has 400 states and 446 transitions. [2020-10-23 20:06:18,317 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-10-23 20:06:18,318 INFO L276 IsEmpty]: Start isEmpty. Operand 400 states and 446 transitions. [2020-10-23 20:06:18,324 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 167 [2020-10-23 20:06:18,324 INFO L414 BasicCegarLoop]: Found error trace [2020-10-23 20:06:18,324 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] [2020-10-23 20:06:18,325 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-23 20:06:18,325 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 20:06:18,325 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-23 20:06:18,326 INFO L82 PathProgramCache]: Analyzing trace with hash 2016684807, now seen corresponding path program 1 times [2020-10-23 20:06:18,326 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-23 20:06:18,328 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1870535162] [2020-10-23 20:06:18,329 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-23 20:06:18,338 INFO L321 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-10-23 20:06:18,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:06:18,839 WARN L193 SmtUtils]: Spent 300.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2020-10-23 20:06:18,841 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-23 20:06:18,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:06:18,929 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2020-10-23 20:06:18,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:06:18,932 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2020-10-23 20:06:18,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:06:18,935 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2020-10-23 20:06:18,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:06:18,996 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-10-23 20:06:19,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:06:19,022 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2020-10-23 20:06:19,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:06:19,027 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-23 20:06:19,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:06:19,029 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2020-10-23 20:06:19,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:06:19,076 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 153 [2020-10-23 20:06:19,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:06:19,133 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-23 20:06:19,134 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1870535162] [2020-10-23 20:06:19,134 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-23 20:06:19,134 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2020-10-23 20:06:19,134 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1909744921] [2020-10-23 20:06:19,135 INFO L461 AbstractCegarLoop]: Interpolant automaton has 14 states [2020-10-23 20:06:19,135 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-23 20:06:19,136 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2020-10-23 20:06:19,137 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=155, Unknown=0, NotChecked=0, Total=182 [2020-10-23 20:06:19,138 INFO L87 Difference]: Start difference. First operand 400 states and 446 transitions. Second operand 14 states. [2020-10-23 20:06:19,919 WARN L193 SmtUtils]: Spent 349.00 ms on a formula simplification that was a NOOP. DAG size: 204 [2020-10-23 20:06:20,514 WARN L193 SmtUtils]: Spent 413.00 ms on a formula simplification that was a NOOP. DAG size: 207 [2020-10-23 20:06:20,947 WARN L193 SmtUtils]: Spent 396.00 ms on a formula simplification that was a NOOP. DAG size: 209 [2020-10-23 20:06:21,382 WARN L193 SmtUtils]: Spent 370.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2020-10-23 20:06:21,811 WARN L193 SmtUtils]: Spent 379.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2020-10-23 20:06:22,221 WARN L193 SmtUtils]: Spent 368.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2020-10-23 20:06:23,153 WARN L193 SmtUtils]: Spent 344.00 ms on a formula simplification that was a NOOP. DAG size: 205 [2020-10-23 20:06:24,621 WARN L193 SmtUtils]: Spent 343.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2020-10-23 20:06:25,041 WARN L193 SmtUtils]: Spent 344.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2020-10-23 20:06:25,516 WARN L193 SmtUtils]: Spent 336.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2020-10-23 20:06:25,988 WARN L193 SmtUtils]: Spent 325.00 ms on a formula simplification that was a NOOP. DAG size: 204 [2020-10-23 20:06:26,376 WARN L193 SmtUtils]: Spent 345.00 ms on a formula simplification that was a NOOP. DAG size: 211 [2020-10-23 20:06:26,761 WARN L193 SmtUtils]: Spent 344.00 ms on a formula simplification that was a NOOP. DAG size: 207 [2020-10-23 20:06:27,143 WARN L193 SmtUtils]: Spent 341.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2020-10-23 20:06:27,548 WARN L193 SmtUtils]: Spent 356.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2020-10-23 20:06:27,964 WARN L193 SmtUtils]: Spent 366.00 ms on a formula simplification that was a NOOP. DAG size: 209 [2020-10-23 20:06:28,525 WARN L193 SmtUtils]: Spent 371.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2020-10-23 20:06:29,054 WARN L193 SmtUtils]: Spent 358.00 ms on a formula simplification that was a NOOP. DAG size: 211 [2020-10-23 20:06:29,520 WARN L193 SmtUtils]: Spent 355.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2020-10-23 20:06:29,918 WARN L193 SmtUtils]: Spent 341.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2020-10-23 20:06:32,048 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-23 20:06:32,049 INFO L93 Difference]: Finished difference Result 1463 states and 1864 transitions. [2020-10-23 20:06:32,049 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2020-10-23 20:06:32,054 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 166 [2020-10-23 20:06:32,056 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-23 20:06:32,074 INFO L225 Difference]: With dead ends: 1463 [2020-10-23 20:06:32,074 INFO L226 Difference]: Without dead ends: 1178 [2020-10-23 20:06:32,083 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 213 ImplicationChecksByTransitivity, 8.2s TimeCoverageRelationStatistics Valid=252, Invalid=1008, Unknown=0, NotChecked=0, Total=1260 [2020-10-23 20:06:32,085 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1178 states. [2020-10-23 20:06:32,523 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1178 to 905. [2020-10-23 20:06:32,523 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 905 states. [2020-10-23 20:06:32,530 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 905 states to 905 states and 1047 transitions. [2020-10-23 20:06:32,531 INFO L78 Accepts]: Start accepts. Automaton has 905 states and 1047 transitions. Word has length 166 [2020-10-23 20:06:32,532 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-23 20:06:32,532 INFO L481 AbstractCegarLoop]: Abstraction has 905 states and 1047 transitions. [2020-10-23 20:06:32,532 INFO L482 AbstractCegarLoop]: Interpolant automaton has 14 states. [2020-10-23 20:06:32,532 INFO L276 IsEmpty]: Start isEmpty. Operand 905 states and 1047 transitions. [2020-10-23 20:06:32,536 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 172 [2020-10-23 20:06:32,536 INFO L414 BasicCegarLoop]: Found error trace [2020-10-23 20:06:32,537 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] [2020-10-23 20:06:32,537 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-23 20:06:32,538 INFO L429 AbstractCegarLoop]: === Iteration 5 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argErr1ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argtypeErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argtypeErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-23 20:06:32,538 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-23 20:06:32,538 INFO L82 PathProgramCache]: Analyzing trace with hash -771531651, now seen corresponding path program 1 times [2020-10-23 20:06:32,538 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-23 20:06:32,539 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1564283082] [2020-10-23 20:06:32,539 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-23 20:06:32,542 INFO L321 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-10-23 20:06:32,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:06:32,960 WARN L193 SmtUtils]: Spent 330.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2020-10-23 20:06:32,961 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-23 20:06:33,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:06:33,030 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2020-10-23 20:06:33,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:06:33,034 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2020-10-23 20:06:33,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:06:33,036 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2020-10-23 20:06:33,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:06:33,040 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-10-23 20:06:33,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:06:33,057 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2020-10-23 20:06:33,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:06:33,070 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2020-10-23 20:06:33,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:06:33,072 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-23 20:06:33,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:06:33,074 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2020-10-23 20:06:33,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:06:33,076 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 158 [2020-10-23 20:06:33,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:06:33,116 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-23 20:06:33,117 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1564283082] [2020-10-23 20:06:33,117 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-23 20:06:33,117 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-10-23 20:06:33,117 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1056294690] [2020-10-23 20:06:33,118 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-23 20:06:33,118 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-23 20:06:33,119 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-23 20:06:33,119 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-10-23 20:06:33,119 INFO L87 Difference]: Start difference. First operand 905 states and 1047 transitions. Second operand 6 states. [2020-10-23 20:06:33,819 WARN L193 SmtUtils]: Spent 352.00 ms on a formula simplification that was a NOOP. DAG size: 204 [2020-10-23 20:06:34,957 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-23 20:06:34,958 INFO L93 Difference]: Finished difference Result 1468 states and 1750 transitions. [2020-10-23 20:06:34,958 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-10-23 20:06:34,959 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 171 [2020-10-23 20:06:34,959 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-23 20:06:34,964 INFO L225 Difference]: With dead ends: 1468 [2020-10-23 20:06:34,965 INFO L226 Difference]: Without dead ends: 678 [2020-10-23 20:06:34,969 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=36, Invalid=54, Unknown=0, NotChecked=0, Total=90 [2020-10-23 20:06:34,971 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 678 states. [2020-10-23 20:06:35,342 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 678 to 644. [2020-10-23 20:06:35,342 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 644 states. [2020-10-23 20:06:35,348 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 644 states to 644 states and 703 transitions. [2020-10-23 20:06:35,351 INFO L78 Accepts]: Start accepts. Automaton has 644 states and 703 transitions. Word has length 171 [2020-10-23 20:06:35,352 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-23 20:06:35,352 INFO L481 AbstractCegarLoop]: Abstraction has 644 states and 703 transitions. [2020-10-23 20:06:35,352 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-23 20:06:35,352 INFO L276 IsEmpty]: Start isEmpty. Operand 644 states and 703 transitions. [2020-10-23 20:06:35,357 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 212 [2020-10-23 20:06:35,357 INFO L414 BasicCegarLoop]: Found error trace [2020-10-23 20:06:35,357 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-23 20:06:35,358 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-23 20:06:35,358 INFO L429 AbstractCegarLoop]: === Iteration 6 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argErr1ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argtypeErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argtypeErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-23 20:06:35,358 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-23 20:06:35,359 INFO L82 PathProgramCache]: Analyzing trace with hash 800721469, now seen corresponding path program 1 times [2020-10-23 20:06:35,359 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-23 20:06:35,360 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1269110944] [2020-10-23 20:06:35,360 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-23 20:06:35,547 WARN L193 SmtUtils]: Spent 172.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 58 [2020-10-23 20:06:35,859 WARN L193 SmtUtils]: Spent 170.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 58 [2020-10-23 20:06:36,136 WARN L193 SmtUtils]: Spent 175.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 58 [2020-10-23 20:06:36,403 WARN L193 SmtUtils]: Spent 175.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 55 [2020-10-23 20:06:36,682 WARN L193 SmtUtils]: Spent 183.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 58 [2020-10-23 20:06:36,944 WARN L193 SmtUtils]: Spent 169.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 55 [2020-10-23 20:06:37,189 WARN L193 SmtUtils]: Spent 167.00 ms on a formula simplification. DAG size of input: 61 DAG size of output: 54 [2020-10-23 20:06:37,455 WARN L193 SmtUtils]: Spent 189.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 58 [2020-10-23 20:06:37,712 WARN L193 SmtUtils]: Spent 169.00 ms on a formula simplification. DAG size of input: 61 DAG size of output: 54 [2020-10-23 20:06:37,974 WARN L193 SmtUtils]: Spent 181.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 58 [2020-10-23 20:06:38,232 WARN L193 SmtUtils]: Spent 167.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 55 [2020-10-23 20:06:38,483 WARN L193 SmtUtils]: Spent 168.00 ms on a formula simplification. DAG size of input: 61 DAG size of output: 54 [2020-10-23 20:06:38,738 WARN L193 SmtUtils]: Spent 169.00 ms on a formula simplification. DAG size of input: 61 DAG size of output: 54 [2020-10-23 20:06:38,984 WARN L193 SmtUtils]: Spent 167.00 ms on a formula simplification. DAG size of input: 61 DAG size of output: 54 [2020-10-23 20:06:41,882 WARN L193 SmtUtils]: Spent 623.00 ms on a formula simplification. DAG size of input: 176 DAG size of output: 172 [2020-10-23 20:06:41,902 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:06:44,556 WARN L193 SmtUtils]: Spent 531.00 ms on a formula simplification. DAG size of input: 176 DAG size of output: 172 [2020-10-23 20:06:44,577 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:06:47,246 WARN L193 SmtUtils]: Spent 531.00 ms on a formula simplification. DAG size of input: 176 DAG size of output: 172 [2020-10-23 20:06:47,260 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:06:49,983 WARN L193 SmtUtils]: Spent 550.00 ms on a formula simplification. DAG size of input: 178 DAG size of output: 174 [2020-10-23 20:06:49,989 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:06:52,700 WARN L193 SmtUtils]: Spent 510.00 ms on a formula simplification. DAG size of input: 178 DAG size of output: 174 [2020-10-23 20:06:52,709 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:06:54,085 WARN L193 SmtUtils]: Spent 490.00 ms on a formula simplification. DAG size of input: 178 DAG size of output: 174 [2020-10-23 20:06:54,091 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:06:56,665 WARN L193 SmtUtils]: Spent 467.00 ms on a formula simplification. DAG size of input: 178 DAG size of output: 174 [2020-10-23 20:06:56,671 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:06:59,215 WARN L193 SmtUtils]: Spent 438.00 ms on a formula simplification. DAG size of input: 176 DAG size of output: 172 [2020-10-23 20:06:59,222 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:06:59,236 INFO L309 leratedInterpolation]: Starting analysis with loop acceleration approximation UNDERAPPROXIMATION [2020-10-23 20:07:01,811 WARN L193 SmtUtils]: Spent 444.00 ms on a formula simplification. DAG size of input: 176 DAG size of output: 172 [2020-10-23 20:07:01,817 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:07:04,370 WARN L193 SmtUtils]: Spent 454.00 ms on a formula simplification. DAG size of input: 176 DAG size of output: 172 [2020-10-23 20:07:04,375 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:07:06,996 WARN L193 SmtUtils]: Spent 506.00 ms on a formula simplification. DAG size of input: 178 DAG size of output: 174 [2020-10-23 20:07:07,009 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:07:09,603 WARN L193 SmtUtils]: Spent 497.00 ms on a formula simplification. DAG size of input: 176 DAG size of output: 172 [2020-10-23 20:07:09,610 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:07:12,263 WARN L193 SmtUtils]: Spent 525.00 ms on a formula simplification. DAG size of input: 178 DAG size of output: 174 [2020-10-23 20:07:12,269 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:07:14,125 WARN L193 SmtUtils]: Spent 516.00 ms on a formula simplification. DAG size of input: 178 DAG size of output: 174 [2020-10-23 20:07:14,130 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:07:15,306 WARN L193 SmtUtils]: Spent 501.00 ms on a formula simplification. DAG size of input: 178 DAG size of output: 174 [2020-10-23 20:07:15,312 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:07:17,912 WARN L193 SmtUtils]: Spent 502.00 ms on a formula simplification. DAG size of input: 176 DAG size of output: 172 [2020-10-23 20:07:17,917 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:07:17,922 INFO L309 leratedInterpolation]: Starting analysis with loop acceleration approximation UNDERAPPROXIMATION [2020-10-23 20:07:20,596 WARN L193 SmtUtils]: Spent 565.00 ms on a formula simplification. DAG size of input: 178 DAG size of output: 174 [2020-10-23 20:07:20,601 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:07:23,285 WARN L193 SmtUtils]: Spent 537.00 ms on a formula simplification. DAG size of input: 178 DAG size of output: 174 [2020-10-23 20:07:23,289 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:07:25,839 WARN L193 SmtUtils]: Spent 476.00 ms on a formula simplification. DAG size of input: 176 DAG size of output: 172 [2020-10-23 20:07:25,844 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:07:28,426 WARN L193 SmtUtils]: Spent 480.00 ms on a formula simplification. DAG size of input: 178 DAG size of output: 174 [2020-10-23 20:07:30,964 WARN L193 SmtUtils]: Spent 465.00 ms on a formula simplification. DAG size of input: 176 DAG size of output: 172 [2020-10-23 20:07:33,530 WARN L193 SmtUtils]: Spent 483.00 ms on a formula simplification. DAG size of input: 176 DAG size of output: 172 [2020-10-23 20:07:33,534 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:07:36,187 WARN L193 SmtUtils]: Spent 585.00 ms on a formula simplification. DAG size of input: 176 DAG size of output: 172 [2020-10-23 20:07:36,191 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:07:38,805 WARN L193 SmtUtils]: Spent 529.00 ms on a formula simplification. DAG size of input: 178 DAG size of output: 174 [2020-10-23 20:07:38,809 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:07:38,814 INFO L309 leratedInterpolation]: Starting analysis with loop acceleration approximation UNDERAPPROXIMATION [2020-10-23 20:07:39,196 WARN L193 SmtUtils]: Spent 367.00 ms on a formula simplification. DAG size of input: 122 DAG size of output: 117 [2020-10-23 20:07:39,608 WARN L193 SmtUtils]: Spent 398.00 ms on a formula simplification. DAG size of input: 121 DAG size of output: 117 [2020-10-23 20:07:40,004 WARN L193 SmtUtils]: Spent 372.00 ms on a formula simplification. DAG size of input: 122 DAG size of output: 117 [2020-10-23 20:07:40,387 WARN L193 SmtUtils]: Spent 362.00 ms on a formula simplification. DAG size of input: 121 DAG size of output: 117 [2020-10-23 20:07:40,769 WARN L193 SmtUtils]: Spent 367.00 ms on a formula simplification. DAG size of input: 122 DAG size of output: 117 [2020-10-23 20:07:41,164 WARN L193 SmtUtils]: Spent 379.00 ms on a formula simplification. DAG size of input: 122 DAG size of output: 117 [2020-10-23 20:07:41,540 WARN L193 SmtUtils]: Spent 362.00 ms on a formula simplification. DAG size of input: 121 DAG size of output: 117 [2020-10-23 20:07:41,918 WARN L193 SmtUtils]: Spent 361.00 ms on a formula simplification. DAG size of input: 121 DAG size of output: 117 [2020-10-23 20:07:41,921 INFO L309 leratedInterpolation]: Starting analysis with loop acceleration approximation UNDERAPPROXIMATION [2020-10-23 20:07:44,487 WARN L193 SmtUtils]: Spent 509.00 ms on a formula simplification. DAG size of input: 174 DAG size of output: 170 [2020-10-23 20:07:44,493 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:07:47,064 WARN L193 SmtUtils]: Spent 504.00 ms on a formula simplification. DAG size of input: 174 DAG size of output: 170 [2020-10-23 20:07:47,068 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:07:49,656 WARN L193 SmtUtils]: Spent 480.00 ms on a formula simplification. DAG size of input: 174 DAG size of output: 170 [2020-10-23 20:07:49,659 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:07:52,269 WARN L193 SmtUtils]: Spent 542.00 ms on a formula simplification. DAG size of input: 176 DAG size of output: 172 [2020-10-23 20:07:52,273 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:07:54,848 WARN L193 SmtUtils]: Spent 496.00 ms on a formula simplification. DAG size of input: 176 DAG size of output: 172 [2020-10-23 20:07:54,853 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:07:56,457 WARN L193 SmtUtils]: Spent 533.00 ms on a formula simplification. DAG size of input: 176 DAG size of output: 172 [2020-10-23 20:07:56,467 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:07:59,047 WARN L193 SmtUtils]: Spent 494.00 ms on a formula simplification. DAG size of input: 176 DAG size of output: 172 [2020-10-23 20:08:01,595 WARN L193 SmtUtils]: Spent 492.00 ms on a formula simplification. DAG size of input: 174 DAG size of output: 170 [2020-10-23 20:08:01,601 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:08:01,605 INFO L309 leratedInterpolation]: Starting analysis with loop acceleration approximation UNDERAPPROXIMATION [2020-10-23 20:08:01,998 WARN L193 SmtUtils]: Spent 372.00 ms on a formula simplification. DAG size of input: 122 DAG size of output: 117 [2020-10-23 20:08:02,398 WARN L193 SmtUtils]: Spent 368.00 ms on a formula simplification. DAG size of input: 122 DAG size of output: 117 [2020-10-23 20:08:02,754 WARN L193 SmtUtils]: Spent 342.00 ms on a formula simplification. DAG size of input: 121 DAG size of output: 117 [2020-10-23 20:08:03,094 WARN L193 SmtUtils]: Spent 325.00 ms on a formula simplification. DAG size of input: 122 DAG size of output: 117 [2020-10-23 20:08:03,463 WARN L193 SmtUtils]: Spent 336.00 ms on a formula simplification. DAG size of input: 121 DAG size of output: 117 [2020-10-23 20:08:03,810 WARN L193 SmtUtils]: Spent 332.00 ms on a formula simplification. DAG size of input: 121 DAG size of output: 117 [2020-10-23 20:08:04,185 WARN L193 SmtUtils]: Spent 360.00 ms on a formula simplification. DAG size of input: 122 DAG size of output: 117 [2020-10-23 20:08:04,539 WARN L193 SmtUtils]: Spent 341.00 ms on a formula simplification. DAG size of input: 121 DAG size of output: 117 [2020-10-23 20:08:04,542 INFO L309 leratedInterpolation]: Starting analysis with loop acceleration approximation UNDERAPPROXIMATION [2020-10-23 20:08:07,080 WARN L193 SmtUtils]: Spent 462.00 ms on a formula simplification. DAG size of input: 171 DAG size of output: 166 [2020-10-23 20:08:09,577 WARN L193 SmtUtils]: Spent 409.00 ms on a formula simplification. DAG size of input: 169 DAG size of output: 165 [2020-10-23 20:08:09,580 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:08:12,100 WARN L193 SmtUtils]: Spent 462.00 ms on a formula simplification. DAG size of input: 171 DAG size of output: 167 [2020-10-23 20:08:12,105 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:08:13,808 WARN L193 SmtUtils]: Spent 507.00 ms on a formula simplification. DAG size of input: 171 DAG size of output: 167 [2020-10-23 20:08:15,473 WARN L193 SmtUtils]: Spent 487.00 ms on a formula simplification. DAG size of input: 171 DAG size of output: 167 [2020-10-23 20:08:15,477 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:08:18,003 WARN L193 SmtUtils]: Spent 466.00 ms on a formula simplification. DAG size of input: 169 DAG size of output: 165 [2020-10-23 20:08:20,499 WARN L193 SmtUtils]: Spent 436.00 ms on a formula simplification. DAG size of input: 169 DAG size of output: 164 [2020-10-23 20:08:22,996 WARN L193 SmtUtils]: Spent 445.00 ms on a formula simplification. DAG size of input: 169 DAG size of output: 165 [2020-10-23 20:08:23,001 INFO L309 leratedInterpolation]: Starting analysis with loop acceleration approximation UNDERAPPROXIMATION [2020-10-23 20:08:25,618 WARN L193 SmtUtils]: Spent 536.00 ms on a formula simplification. DAG size of input: 172 DAG size of output: 168 [2020-10-23 20:08:25,621 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:08:28,224 WARN L193 SmtUtils]: Spent 517.00 ms on a formula simplification. DAG size of input: 172 DAG size of output: 168 [2020-10-23 20:08:28,228 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:08:30,756 WARN L193 SmtUtils]: Spent 475.00 ms on a formula simplification. DAG size of input: 170 DAG size of output: 166 [2020-10-23 20:08:33,336 WARN L193 SmtUtils]: Spent 519.00 ms on a formula simplification. DAG size of input: 172 DAG size of output: 168 [2020-10-23 20:08:33,340 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:08:35,941 WARN L193 SmtUtils]: Spent 523.00 ms on a formula simplification. DAG size of input: 170 DAG size of output: 166 [2020-10-23 20:08:35,944 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:08:38,529 WARN L193 SmtUtils]: Spent 509.00 ms on a formula simplification. DAG size of input: 170 DAG size of output: 166 [2020-10-23 20:08:38,533 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:08:41,072 WARN L193 SmtUtils]: Spent 483.00 ms on a formula simplification. DAG size of input: 170 DAG size of output: 166 [2020-10-23 20:08:43,686 WARN L193 SmtUtils]: Spent 551.00 ms on a formula simplification. DAG size of input: 172 DAG size of output: 168 [2020-10-23 20:08:43,692 INFO L309 leratedInterpolation]: Starting analysis with loop acceleration approximation UNDERAPPROXIMATION [2020-10-23 20:08:46,211 WARN L193 SmtUtils]: Spent 469.00 ms on a formula simplification. DAG size of input: 167 DAG size of output: 163 [2020-10-23 20:08:48,840 WARN L193 SmtUtils]: Spent 516.00 ms on a formula simplification. DAG size of input: 169 DAG size of output: 164 [2020-10-23 20:08:48,847 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:08:51,375 WARN L193 SmtUtils]: Spent 470.00 ms on a formula simplification. DAG size of input: 167 DAG size of output: 163 [2020-10-23 20:08:51,380 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:08:53,962 WARN L193 SmtUtils]: Spent 517.00 ms on a formula simplification. DAG size of input: 169 DAG size of output: 165 [2020-10-23 20:08:53,968 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:08:56,521 WARN L193 SmtUtils]: Spent 487.00 ms on a formula simplification. DAG size of input: 167 DAG size of output: 162 [2020-10-23 20:08:56,524 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:08:59,134 WARN L193 SmtUtils]: Spent 534.00 ms on a formula simplification. DAG size of input: 169 DAG size of output: 165 [2020-10-23 20:08:59,138 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:09:01,702 WARN L193 SmtUtils]: Spent 483.00 ms on a formula simplification. DAG size of input: 167 DAG size of output: 163 [2020-10-23 20:09:03,522 WARN L193 SmtUtils]: Spent 554.00 ms on a formula simplification. DAG size of input: 169 DAG size of output: 165 [2020-10-23 20:09:03,527 INFO L309 leratedInterpolation]: Starting analysis with loop acceleration approximation UNDERAPPROXIMATION [2020-10-23 20:09:06,115 WARN L193 SmtUtils]: Spent 535.00 ms on a formula simplification. DAG size of input: 172 DAG size of output: 168 [2020-10-23 20:09:08,751 WARN L193 SmtUtils]: Spent 577.00 ms on a formula simplification. DAG size of input: 174 DAG size of output: 170 [2020-10-23 20:09:11,388 WARN L193 SmtUtils]: Spent 578.00 ms on a formula simplification. DAG size of input: 174 DAG size of output: 170 [2020-10-23 20:09:11,392 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:09:13,228 WARN L193 SmtUtils]: Spent 555.00 ms on a formula simplification. DAG size of input: 174 DAG size of output: 170 [2020-10-23 20:09:15,830 WARN L193 SmtUtils]: Spent 504.00 ms on a formula simplification. DAG size of input: 172 DAG size of output: 168 [2020-10-23 20:09:15,833 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:09:18,422 WARN L193 SmtUtils]: Spent 519.00 ms on a formula simplification. DAG size of input: 172 DAG size of output: 168 [2020-10-23 20:09:18,425 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:09:21,200 WARN L193 SmtUtils]: Spent 579.00 ms on a formula simplification. DAG size of input: 174 DAG size of output: 170 [2020-10-23 20:09:23,775 WARN L193 SmtUtils]: Spent 519.00 ms on a formula simplification. DAG size of input: 172 DAG size of output: 168 [2020-10-23 20:09:23,780 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:09:23,783 INFO L309 leratedInterpolation]: Starting analysis with loop acceleration approximation UNDERAPPROXIMATION [2020-10-23 20:09:24,168 WARN L193 SmtUtils]: Spent 373.00 ms on a formula simplification. DAG size of input: 121 DAG size of output: 117 [2020-10-23 20:09:24,548 WARN L193 SmtUtils]: Spent 366.00 ms on a formula simplification. DAG size of input: 122 DAG size of output: 117 [2020-10-23 20:09:24,925 WARN L193 SmtUtils]: Spent 363.00 ms on a formula simplification. DAG size of input: 122 DAG size of output: 117 [2020-10-23 20:09:25,317 WARN L193 SmtUtils]: Spent 379.00 ms on a formula simplification. DAG size of input: 122 DAG size of output: 117 [2020-10-23 20:09:25,711 WARN L193 SmtUtils]: Spent 373.00 ms on a formula simplification. DAG size of input: 121 DAG size of output: 117 [2020-10-23 20:09:26,097 WARN L193 SmtUtils]: Spent 369.00 ms on a formula simplification. DAG size of input: 121 DAG size of output: 117 [2020-10-23 20:09:26,478 WARN L193 SmtUtils]: Spent 367.00 ms on a formula simplification. DAG size of input: 121 DAG size of output: 117 [2020-10-23 20:09:26,863 WARN L193 SmtUtils]: Spent 369.00 ms on a formula simplification. DAG size of input: 122 DAG size of output: 117 [2020-10-23 20:09:26,865 INFO L309 leratedInterpolation]: Starting analysis with loop acceleration approximation UNDERAPPROXIMATION [2020-10-23 20:09:27,244 WARN L193 SmtUtils]: Spent 349.00 ms on a formula simplification. DAG size of input: 121 DAG size of output: 114 [2020-10-23 20:09:27,600 WARN L193 SmtUtils]: Spent 336.00 ms on a formula simplification. DAG size of input: 120 DAG size of output: 114 [2020-10-23 20:09:27,983 WARN L193 SmtUtils]: Spent 368.00 ms on a formula simplification. DAG size of input: 120 DAG size of output: 113 [2020-10-23 20:09:28,376 WARN L193 SmtUtils]: Spent 378.00 ms on a formula simplification. DAG size of input: 121 DAG size of output: 113 [2020-10-23 20:09:28,760 WARN L193 SmtUtils]: Spent 371.00 ms on a formula simplification. DAG size of input: 120 DAG size of output: 113 [2020-10-23 20:09:29,143 WARN L193 SmtUtils]: Spent 369.00 ms on a formula simplification. DAG size of input: 121 DAG size of output: 114 [2020-10-23 20:09:29,532 WARN L193 SmtUtils]: Spent 374.00 ms on a formula simplification. DAG size of input: 121 DAG size of output: 114 [2020-10-23 20:09:29,892 WARN L193 SmtUtils]: Spent 342.00 ms on a formula simplification. DAG size of input: 120 DAG size of output: 114 [2020-10-23 20:09:29,894 INFO L309 leratedInterpolation]: Starting analysis with loop acceleration approximation UNDERAPPROXIMATION [2020-10-23 20:09:30,264 WARN L193 SmtUtils]: Spent 358.00 ms on a formula simplification. DAG size of input: 120 DAG size of output: 114 [2020-10-23 20:09:30,645 WARN L193 SmtUtils]: Spent 363.00 ms on a formula simplification. DAG size of input: 120 DAG size of output: 114 [2020-10-23 20:09:31,030 WARN L193 SmtUtils]: Spent 364.00 ms on a formula simplification. DAG size of input: 120 DAG size of output: 113 [2020-10-23 20:09:31,410 WARN L193 SmtUtils]: Spent 365.00 ms on a formula simplification. DAG size of input: 121 DAG size of output: 114 [2020-10-23 20:09:31,791 WARN L193 SmtUtils]: Spent 368.00 ms on a formula simplification. DAG size of input: 121 DAG size of output: 114 [2020-10-23 20:09:32,166 WARN L193 SmtUtils]: Spent 348.00 ms on a formula simplification. DAG size of input: 121 DAG size of output: 113 [2020-10-23 20:09:32,529 WARN L193 SmtUtils]: Spent 348.00 ms on a formula simplification. DAG size of input: 120 DAG size of output: 113 [2020-10-23 20:09:32,920 WARN L193 SmtUtils]: Spent 377.00 ms on a formula simplification. DAG size of input: 121 DAG size of output: 114 [2020-10-23 20:09:32,923 INFO L309 leratedInterpolation]: Starting analysis with loop acceleration approximation UNDERAPPROXIMATION [2020-10-23 20:09:33,305 WARN L193 SmtUtils]: Spent 368.00 ms on a formula simplification. DAG size of input: 120 DAG size of output: 114 [2020-10-23 20:09:33,696 WARN L193 SmtUtils]: Spent 373.00 ms on a formula simplification. DAG size of input: 121 DAG size of output: 114 [2020-10-23 20:09:34,092 WARN L193 SmtUtils]: Spent 381.00 ms on a formula simplification. DAG size of input: 121 DAG size of output: 114 [2020-10-23 20:09:34,490 WARN L193 SmtUtils]: Spent 384.00 ms on a formula simplification. DAG size of input: 121 DAG size of output: 113 [2020-10-23 20:09:34,888 WARN L193 SmtUtils]: Spent 381.00 ms on a formula simplification. DAG size of input: 120 DAG size of output: 113 [2020-10-23 20:09:35,284 WARN L193 SmtUtils]: Spent 381.00 ms on a formula simplification. DAG size of input: 121 DAG size of output: 114 [2020-10-23 20:09:35,676 WARN L193 SmtUtils]: Spent 378.00 ms on a formula simplification. DAG size of input: 120 DAG size of output: 113 [2020-10-23 20:09:36,076 WARN L193 SmtUtils]: Spent 377.00 ms on a formula simplification. DAG size of input: 120 DAG size of output: 114 [2020-10-23 20:09:36,077 INFO L309 leratedInterpolation]: Starting analysis with loop acceleration approximation UNDERAPPROXIMATION [2020-10-23 20:09:36,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-23 20:09:36,705 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-23 20:09:37,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-23 20:09:37,199 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-23 20:09:37,385 INFO L173 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2020-10-23 20:09:37,385 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-10-23 20:09:37,386 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-23 20:09:37,417 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 23.10 08:09:37 BoogieIcfgContainer [2020-10-23 20:09:37,417 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-23 20:09:37,420 INFO L168 Benchmark]: Toolchain (without parser) took 215025.31 ms. Allocated memory was 151.0 MB in the beginning and 588.3 MB in the end (delta: 437.3 MB). Free memory was 127.2 MB in the beginning and 389.2 MB in the end (delta: -262.0 MB). Peak memory consumption was 175.9 MB. Max. memory is 8.0 GB. [2020-10-23 20:09:37,422 INFO L168 Benchmark]: CDTParser took 0.25 ms. Allocated memory is still 151.0 MB. Free memory is still 130.2 MB. There was no memory consumed. Max. memory is 8.0 GB. [2020-10-23 20:09:37,425 INFO L168 Benchmark]: CACSL2BoogieTranslator took 696.89 ms. Allocated memory is still 151.0 MB. Free memory was 126.6 MB in the beginning and 105.8 MB in the end (delta: 20.8 MB). Peak memory consumption was 19.9 MB. Max. memory is 8.0 GB. [2020-10-23 20:09:37,426 INFO L168 Benchmark]: Boogie Preprocessor took 159.89 ms. Allocated memory is still 151.0 MB. Free memory was 105.8 MB in the beginning and 101.8 MB in the end (delta: 4.0 MB). Peak memory consumption was 4.2 MB. Max. memory is 8.0 GB. [2020-10-23 20:09:37,426 INFO L168 Benchmark]: RCFGBuilder took 1407.85 ms. Allocated memory is still 151.0 MB. Free memory was 101.8 MB in the beginning and 114.1 MB in the end (delta: -12.3 MB). Peak memory consumption was 52.5 MB. Max. memory is 8.0 GB. [2020-10-23 20:09:37,429 INFO L168 Benchmark]: TraceAbstraction took 212740.09 ms. Allocated memory was 151.0 MB in the beginning and 588.3 MB in the end (delta: 437.3 MB). Free memory was 113.6 MB in the beginning and 389.2 MB in the end (delta: -275.6 MB). Peak memory consumption was 161.1 MB. Max. memory is 8.0 GB. [2020-10-23 20:09:37,431 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.25 ms. Allocated memory is still 151.0 MB. Free memory is still 130.2 MB. There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 696.89 ms. Allocated memory is still 151.0 MB. Free memory was 126.6 MB in the beginning and 105.8 MB in the end (delta: 20.8 MB). Peak memory consumption was 19.9 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 159.89 ms. Allocated memory is still 151.0 MB. Free memory was 105.8 MB in the beginning and 101.8 MB in the end (delta: 4.0 MB). Peak memory consumption was 4.2 MB. Max. memory is 8.0 GB. * RCFGBuilder took 1407.85 ms. Allocated memory is still 151.0 MB. Free memory was 101.8 MB in the beginning and 114.1 MB in the end (delta: -12.3 MB). Peak memory consumption was 52.5 MB. Max. memory is 8.0 GB. * TraceAbstraction took 212740.09 ms. Allocated memory was 151.0 MB in the beginning and 588.3 MB in the end (delta: 437.3 MB). Free memory was 113.6 MB in the beginning and 389.2 MB in the end (delta: -275.6 MB). Peak memory consumption was 161.1 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: [L42] int cleanupTimeShifts = 4; [L187] int waterLevel = 1; [L188] int methaneLevelCritical = 0; [L346] int pumpRunning = 0; [L347] int systemActive = 1; [L735] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L123] int retValue_acc ; [L124] int tmp ; [L128] FCALL select_helpers() [L129] FCALL select_features() [L130] CALL, EXPR valid_product() [L557] int retValue_acc ; [L560] retValue_acc = 1 [L561] return (retValue_acc); [L130] RET, EXPR valid_product() [L130] tmp = valid_product() [L132] COND TRUE \read(tmp) [L134] FCALL setup() [L135] CALL runTest() [L114] CALL test() [L278] int splverifierCounter ; [L279] int tmp ; [L280] int tmp___0 ; [L281] int tmp___1 ; [L282] int tmp___2 ; [L285] splverifierCounter = 0 [L287] COND TRUE 1 [L289] COND TRUE splverifierCounter < 4 [L295] tmp = __VERIFIER_nondet_int() [L297] COND TRUE \read(tmp) [L299] CALL waterRise() [L205] COND TRUE waterLevel < 2 [L206] waterLevel = waterLevel + 1 [L299] RET waterRise() [L305] tmp___0 = __VERIFIER_nondet_int() [L307] COND FALSE !(\read(tmp___0)) [L315] tmp___2 = __VERIFIER_nondet_int() [L317] COND FALSE !(\read(tmp___2)) [L321] tmp___1 = __VERIFIER_nondet_int() [L323] COND TRUE \read(tmp___1) [L325] CALL stopSystem() [L519] COND FALSE !(\read(pumpRunning)) [L526] systemActive = 0 [L325] RET stopSystem() [L332] CALL timeShift() [L353] COND FALSE !(\read(pumpRunning)) [L360] COND FALSE !(\read(systemActive)) [L368] CALL __utac_acc__Specification4_spec__1() [L158] int tmp ; [L159] int tmp___0 ; [L163] CALL, EXPR getWaterLevel() [L258] int retValue_acc ; [L261] retValue_acc = waterLevel [L262] return (retValue_acc); [L163] RET, EXPR getWaterLevel() [L163] tmp = getWaterLevel() [L165] COND FALSE !(tmp == 0) [L368] RET __utac_acc__Specification4_spec__1() [L332] RET timeShift() [L287] COND TRUE 1 [L289] COND TRUE splverifierCounter < 4 [L295] tmp = __VERIFIER_nondet_int() [L297] COND TRUE \read(tmp) [L299] CALL waterRise() [L205] COND TRUE waterLevel < 2 [L206] waterLevel = waterLevel + 1 [L299] RET waterRise() [L305] tmp___0 = __VERIFIER_nondet_int() [L307] COND FALSE !(\read(tmp___0)) [L315] tmp___2 = __VERIFIER_nondet_int() [L317] COND TRUE \read(tmp___2) [L332] CALL timeShift() [L353] COND FALSE !(\read(pumpRunning)) [L360] COND FALSE !(\read(systemActive)) [L368] CALL __utac_acc__Specification4_spec__1() [L158] int tmp ; [L159] int tmp___0 ; [L163] CALL, EXPR getWaterLevel() [L258] int retValue_acc ; [L261] retValue_acc = waterLevel [L262] return (retValue_acc); [L163] RET, EXPR getWaterLevel() [L163] tmp = getWaterLevel() [L165] COND TRUE tmp == 0 [L167] CALL, EXPR isPumpRunning() [L452] int retValue_acc ; [L455] retValue_acc = pumpRunning [L456] return (retValue_acc); [L167] RET, EXPR isPumpRunning() [L167] tmp___0 = isPumpRunning() [L169] COND TRUE \read(tmp___0) [L171] CALL __automaton_fail() [L150] CALL reach_error() [L3] __assert_fail("0", "minepump_spec4_product27.cil.c", 3, "reach_error") - StatisticsResult: Ultimate Automizer benchmark data CFG has 40 procedures, 631 locations, 5 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 212.6s, OverallIterations: 6, TraceHistogramMax: 2, AutomataDifference: 25.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 1048 SDtfs, 1893 SDslu, 1935 SDs, 0 SdLazy, 3749 SolverSat, 633 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 10.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 158 GetRequests, 97 SyntacticMatches, 1 SemanticMatches, 60 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 239 ImplicationChecksByTransitivity, 13.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=905occurred in iteration=4, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 1.3s AutomataMinimizationTime, 5 MinimizatonAttempts, 447 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...