/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_product59.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.2.0-b8ad66e [2020-10-23 20:14:28,146 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-23 20:14:28,149 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-23 20:14:28,189 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-23 20:14:28,190 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-23 20:14:28,191 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-23 20:14:28,193 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-23 20:14:28,195 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-23 20:14:28,198 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-23 20:14:28,199 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-23 20:14:28,201 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-23 20:14:28,202 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-23 20:14:28,203 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-23 20:14:28,204 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-23 20:14:28,206 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-23 20:14:28,207 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-23 20:14:28,208 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-23 20:14:28,210 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-23 20:14:28,212 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-23 20:14:28,215 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-23 20:14:28,217 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-23 20:14:28,221 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-23 20:14:28,225 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-23 20:14:28,227 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-23 20:14:28,230 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-23 20:14:28,230 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-23 20:14:28,230 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-23 20:14:28,231 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-23 20:14:28,232 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-23 20:14:28,233 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-23 20:14:28,234 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-23 20:14:28,235 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-23 20:14:28,235 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-23 20:14:28,236 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-23 20:14:28,238 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-23 20:14:28,238 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-23 20:14:28,239 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-23 20:14:28,239 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-23 20:14:28,240 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-23 20:14:28,241 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-23 20:14:28,242 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-23 20:14:28,243 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 20:14:28,258 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-23 20:14:28,259 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-23 20:14:28,261 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-23 20:14:28,261 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-23 20:14:28,261 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-23 20:14:28,261 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-23 20:14:28,262 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-23 20:14:28,262 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-23 20:14:28,262 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-23 20:14:28,262 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-23 20:14:28,262 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-23 20:14:28,263 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-23 20:14:28,263 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-23 20:14:28,263 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-23 20:14:28,263 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-23 20:14:28,264 INFO L138 SettingsManager]: * Size of a code block=SingleStatement [2020-10-23 20:14:28,264 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-23 20:14:28,264 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-23 20:14:28,264 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-23 20:14:28,264 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-23 20:14:28,265 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=AcceleratedInterpolation [2020-10-23 20:14:28,265 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-23 20:14:28,265 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2020-10-23 20:14:28,647 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-23 20:14:28,689 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-23 20:14:28,694 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-23 20:14:28,696 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-23 20:14:28,697 INFO L275 PluginConnector]: CDTParser initialized [2020-10-23 20:14:28,698 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec4_product59.cil.c [2020-10-23 20:14:28,794 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f7445b76e/2d399b9453f8467ba8796c075a9d5471/FLAGd4eff5777 [2020-10-23 20:14:29,583 INFO L306 CDTParser]: Found 1 translation units. [2020-10-23 20:14:29,583 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/minepump_spec4_product59.cil.c [2020-10-23 20:14:29,604 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f7445b76e/2d399b9453f8467ba8796c075a9d5471/FLAGd4eff5777 [2020-10-23 20:14:29,855 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f7445b76e/2d399b9453f8467ba8796c075a9d5471 [2020-10-23 20:14:29,860 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-23 20:14:29,868 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-23 20:14:29,870 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-23 20:14:29,870 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-23 20:14:29,874 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-23 20:14:29,875 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.10 08:14:29" (1/1) ... [2020-10-23 20:14:29,879 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@24a6efac and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 08:14:29, skipping insertion in model container [2020-10-23 20:14:29,880 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.10 08:14:29" (1/1) ... [2020-10-23 20:14:29,889 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-23 20:14:29,942 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-23 20:14:30,266 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-23 20:14:30,284 INFO L203 MainTranslator]: Completed pre-run [2020-10-23 20:14:30,428 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-23 20:14:30,501 INFO L208 MainTranslator]: Completed translation [2020-10-23 20:14:30,501 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 08:14:30 WrapperNode [2020-10-23 20:14:30,502 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-23 20:14:30,503 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-23 20:14:30,504 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-23 20:14:30,504 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-23 20:14:30,520 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 08:14:30" (1/1) ... [2020-10-23 20:14:30,521 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 08:14:30" (1/1) ... [2020-10-23 20:14:30,559 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 08:14:30" (1/1) ... [2020-10-23 20:14:30,560 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 08:14:30" (1/1) ... [2020-10-23 20:14:30,621 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 08:14:30" (1/1) ... [2020-10-23 20:14:30,645 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 08:14:30" (1/1) ... [2020-10-23 20:14:30,653 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 08:14:30" (1/1) ... [2020-10-23 20:14:30,671 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-23 20:14:30,673 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-23 20:14:30,677 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-23 20:14:30,677 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-23 20:14:30,679 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 08:14:30" (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 20:14:30,800 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-23 20:14:30,800 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-23 20:14:30,800 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2020-10-23 20:14:30,800 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2020-10-23 20:14:30,801 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2020-10-23 20:14:30,801 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2020-10-23 20:14:30,801 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2020-10-23 20:14:30,801 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2020-10-23 20:14:30,801 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification4_spec__1 [2020-10-23 20:14:30,801 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2020-10-23 20:14:30,802 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2020-10-23 20:14:30,802 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2020-10-23 20:14:30,802 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__highWaterSensor [2020-10-23 20:14:30,802 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2020-10-23 20:14:30,802 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump__wrappee__lowWaterSensor [2020-10-23 20:14:30,803 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2020-10-23 20:14:30,803 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2020-10-23 20:14:30,803 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2020-10-23 20:14:30,803 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2020-10-23 20:14:30,803 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2020-10-23 20:14:30,803 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterLevel [2020-10-23 20:14:30,804 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterLevel [2020-10-23 20:14:30,804 INFO L138 BoogieDeclarations]: Found implementation of procedure stopSystem [2020-10-23 20:14:30,804 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2020-10-23 20:14:30,804 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2020-10-23 20:14:30,804 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2020-10-23 20:14:30,804 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2020-10-23 20:14:30,805 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-23 20:14:30,805 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2020-10-23 20:14:30,805 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2020-10-23 20:14:30,805 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2020-10-23 20:14:30,805 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2020-10-23 20:14:30,805 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2020-10-23 20:14:30,805 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2020-10-23 20:14:30,806 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterSensorDry [2020-10-23 20:14:30,806 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterSensorDry [2020-10-23 20:14:30,806 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2020-10-23 20:14:30,806 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2020-10-23 20:14:30,806 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2020-10-23 20:14:30,806 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2020-10-23 20:14:30,807 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2020-10-23 20:14:30,807 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2020-10-23 20:14:30,807 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2020-10-23 20:14:30,807 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-10-23 20:14:30,807 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-10-23 20:14:30,808 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2020-10-23 20:14:30,808 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-23 20:14:30,808 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-10-23 20:14:30,808 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2020-10-23 20:14:30,808 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2020-10-23 20:14:30,808 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2020-10-23 20:14:30,808 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2020-10-23 20:14:30,809 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2020-10-23 20:14:30,809 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2020-10-23 20:14:30,809 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2020-10-23 20:14:30,809 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2020-10-23 20:14:30,809 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification4_spec__1 [2020-10-23 20:14:30,809 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2020-10-23 20:14:30,809 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2020-10-23 20:14:30,810 INFO L130 BoogieDeclarations]: Found specification of procedure stopSystem [2020-10-23 20:14:30,810 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2020-10-23 20:14:30,810 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2020-10-23 20:14:30,810 INFO L130 BoogieDeclarations]: Found specification of procedure test [2020-10-23 20:14:30,810 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2020-10-23 20:14:30,810 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2020-10-23 20:14:30,810 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2020-10-23 20:14:30,810 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterSensorDry [2020-10-23 20:14:30,811 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterSensorDry [2020-10-23 20:14:30,811 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2020-10-23 20:14:30,811 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2020-10-23 20:14:30,811 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2020-10-23 20:14:30,811 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2020-10-23 20:14:30,811 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2020-10-23 20:14:30,811 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterLevel [2020-10-23 20:14:30,812 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__highWaterSensor [2020-10-23 20:14:30,812 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterLevel [2020-10-23 20:14:30,812 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump__wrappee__lowWaterSensor [2020-10-23 20:14:30,812 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2020-10-23 20:14:30,812 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2020-10-23 20:14:30,812 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2020-10-23 20:14:30,812 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2020-10-23 20:14:30,813 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-23 20:14:30,813 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-10-23 20:14:30,813 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-10-23 20:14:30,813 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2020-10-23 20:14:30,813 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-10-23 20:14:30,813 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-10-23 20:14:30,814 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-23 20:14:30,814 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-10-23 20:14:30,814 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2020-10-23 20:14:30,814 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-23 20:14:30,814 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2020-10-23 20:14:30,814 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2020-10-23 20:14:30,815 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-10-23 20:14:30,815 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2020-10-23 20:14:30,815 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2020-10-23 20:14:30,815 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2020-10-23 20:14:30,815 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-23 20:14:30,815 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-23 20:14:30,815 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-23 20:14:32,220 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-23 20:14:32,221 INFO L298 CfgBuilder]: Removed 5 assume(true) statements. [2020-10-23 20:14:32,225 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.10 08:14:32 BoogieIcfgContainer [2020-10-23 20:14:32,225 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-23 20:14:32,227 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-23 20:14:32,228 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-23 20:14:32,232 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-23 20:14:32,232 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.10 08:14:29" (1/3) ... [2020-10-23 20:14:32,234 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@54d9562e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.10 08:14:32, skipping insertion in model container [2020-10-23 20:14:32,234 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 08:14:30" (2/3) ... [2020-10-23 20:14:32,235 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@54d9562e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.10 08:14:32, skipping insertion in model container [2020-10-23 20:14:32,235 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.10 08:14:32" (3/3) ... [2020-10-23 20:14:32,237 INFO L111 eAbstractionObserver]: Analyzing ICFG minepump_spec4_product59.cil.c [2020-10-23 20:14:32,254 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:AcceleratedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-23 20:14:32,263 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 5 error locations. [2020-10-23 20:14:32,282 INFO L253 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2020-10-23 20:14:32,312 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-23 20:14:32,313 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-23 20:14:32,313 INFO L379 AbstractCegarLoop]: Compute interpolants for AcceleratedInterpolation [2020-10-23 20:14:32,313 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-23 20:14:32,313 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-23 20:14:32,313 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-23 20:14:32,313 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-23 20:14:32,314 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-23 20:14:32,342 INFO L276 IsEmpty]: Start isEmpty. Operand 349 states. [2020-10-23 20:14:32,366 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 149 [2020-10-23 20:14:32,366 INFO L414 BasicCegarLoop]: Found error trace [2020-10-23 20:14:32,367 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 20:14:32,368 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 20:14:32,377 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-23 20:14:32,378 INFO L82 PathProgramCache]: Analyzing trace with hash -2145486608, now seen corresponding path program 1 times [2020-10-23 20:14:32,391 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-23 20:14:32,392 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [906251898] [2020-10-23 20:14:32,393 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-23 20:14:32,494 INFO L321 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-10-23 20:14:32,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:14:33,270 WARN L193 SmtUtils]: Spent 367.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2020-10-23 20:14:33,274 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-23 20:14:33,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:14:33,441 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2020-10-23 20:14:33,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:14:33,445 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2020-10-23 20:14:33,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:14:33,448 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2020-10-23 20:14:33,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:14:33,451 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-10-23 20:14:33,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:14:33,454 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2020-10-23 20:14:33,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:14:33,458 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2020-10-23 20:14:33,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:14:33,549 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-23 20:14:33,552 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [906251898] [2020-10-23 20:14:33,555 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-23 20:14:33,555 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-23 20:14:33,556 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1849530107] [2020-10-23 20:14:33,562 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-23 20:14:33,563 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-23 20:14:33,580 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-23 20:14:33,581 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-23 20:14:33,584 INFO L87 Difference]: Start difference. First operand 349 states. Second operand 3 states. [2020-10-23 20:14:35,821 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-23 20:14:35,822 INFO L93 Difference]: Finished difference Result 559 states and 658 transitions. [2020-10-23 20:14:35,823 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-23 20:14:35,825 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 148 [2020-10-23 20:14:35,826 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-23 20:14:35,845 INFO L225 Difference]: With dead ends: 559 [2020-10-23 20:14:35,845 INFO L226 Difference]: Without dead ends: 340 [2020-10-23 20:14:35,852 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-23 20:14:35,878 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 340 states. [2020-10-23 20:14:36,058 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 340 to 295. [2020-10-23 20:14:36,059 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 295 states. [2020-10-23 20:14:36,062 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 295 states to 295 states and 320 transitions. [2020-10-23 20:14:36,064 INFO L78 Accepts]: Start accepts. Automaton has 295 states and 320 transitions. Word has length 148 [2020-10-23 20:14:36,066 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-23 20:14:36,066 INFO L481 AbstractCegarLoop]: Abstraction has 295 states and 320 transitions. [2020-10-23 20:14:36,066 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-23 20:14:36,066 INFO L276 IsEmpty]: Start isEmpty. Operand 295 states and 320 transitions. [2020-10-23 20:14:36,070 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 150 [2020-10-23 20:14:36,071 INFO L414 BasicCegarLoop]: Found error trace [2020-10-23 20:14:36,071 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 20:14:36,071 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-23 20:14:36,072 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 20:14:36,072 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-23 20:14:36,072 INFO L82 PathProgramCache]: Analyzing trace with hash 669385568, now seen corresponding path program 1 times [2020-10-23 20:14:36,073 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-23 20:14:36,073 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [953746234] [2020-10-23 20:14:36,073 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-23 20:14:36,078 INFO L321 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-10-23 20:14:36,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:14:36,665 WARN L193 SmtUtils]: Spent 360.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2020-10-23 20:14:36,666 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-23 20:14:36,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:14:36,741 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2020-10-23 20:14:36,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:14:36,748 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2020-10-23 20:14:36,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:14:36,752 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2020-10-23 20:14:36,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:14:36,766 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-10-23 20:14:36,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:14:36,769 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2020-10-23 20:14:36,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:14:36,772 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2020-10-23 20:14:36,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:14:36,806 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-23 20:14:36,807 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [953746234] [2020-10-23 20:14:36,807 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-23 20:14:36,808 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-23 20:14:36,808 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1938600967] [2020-10-23 20:14:36,810 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-23 20:14:36,812 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-23 20:14:36,813 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-23 20:14:36,813 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-23 20:14:36,813 INFO L87 Difference]: Start difference. First operand 295 states and 320 transitions. Second operand 4 states. [2020-10-23 20:14:37,889 WARN L193 SmtUtils]: Spent 373.00 ms on a formula simplification that was a NOOP. DAG size: 205 [2020-10-23 20:14:39,607 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-23 20:14:39,608 INFO L93 Difference]: Finished difference Result 467 states and 521 transitions. [2020-10-23 20:14:39,610 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-23 20:14:39,610 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 149 [2020-10-23 20:14:39,611 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-23 20:14:39,615 INFO L225 Difference]: With dead ends: 467 [2020-10-23 20:14:39,615 INFO L226 Difference]: Without dead ends: 323 [2020-10-23 20:14:39,618 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-10-23 20:14:39,620 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 323 states. [2020-10-23 20:14:39,775 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 323 to 285. [2020-10-23 20:14:39,776 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 285 states. [2020-10-23 20:14:39,778 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 285 states to 285 states and 307 transitions. [2020-10-23 20:14:39,778 INFO L78 Accepts]: Start accepts. Automaton has 285 states and 307 transitions. Word has length 149 [2020-10-23 20:14:39,779 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-23 20:14:39,779 INFO L481 AbstractCegarLoop]: Abstraction has 285 states and 307 transitions. [2020-10-23 20:14:39,779 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-23 20:14:39,780 INFO L276 IsEmpty]: Start isEmpty. Operand 285 states and 307 transitions. [2020-10-23 20:14:39,782 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 159 [2020-10-23 20:14:39,782 INFO L414 BasicCegarLoop]: Found error trace [2020-10-23 20:14:39,783 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 20:14:39,783 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-23 20:14:39,783 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 20:14:39,784 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-23 20:14:39,784 INFO L82 PathProgramCache]: Analyzing trace with hash 822064914, now seen corresponding path program 1 times [2020-10-23 20:14:39,785 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-23 20:14:39,785 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1771959215] [2020-10-23 20:14:39,785 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-23 20:14:39,789 INFO L321 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-10-23 20:14:39,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:14:40,403 WARN L193 SmtUtils]: Spent 455.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2020-10-23 20:14:40,405 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-23 20:14:40,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:14:40,480 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2020-10-23 20:14:40,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:14:40,484 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2020-10-23 20:14:40,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:14:40,488 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2020-10-23 20:14:40,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:14:40,556 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-10-23 20:14:40,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:14:40,561 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2020-10-23 20:14:40,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:14:40,564 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 145 [2020-10-23 20:14:40,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:14:40,623 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-23 20:14:40,624 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1771959215] [2020-10-23 20:14:40,624 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-23 20:14:40,625 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-10-23 20:14:40,625 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1689078319] [2020-10-23 20:14:40,626 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-10-23 20:14:40,626 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-23 20:14:40,626 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-10-23 20:14:40,627 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2020-10-23 20:14:40,627 INFO L87 Difference]: Start difference. First operand 285 states and 307 transitions. Second operand 9 states. [2020-10-23 20:14:41,390 WARN L193 SmtUtils]: Spent 365.00 ms on a formula simplification that was a NOOP. DAG size: 204 [2020-10-23 20:14:41,946 WARN L193 SmtUtils]: Spent 409.00 ms on a formula simplification that was a NOOP. DAG size: 207 [2020-10-23 20:14:42,364 WARN L193 SmtUtils]: Spent 396.00 ms on a formula simplification that was a NOOP. DAG size: 209 [2020-10-23 20:14:42,804 WARN L193 SmtUtils]: Spent 391.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2020-10-23 20:14:43,242 WARN L193 SmtUtils]: Spent 402.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2020-10-23 20:14:43,655 WARN L193 SmtUtils]: Spent 387.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2020-10-23 20:14:45,036 WARN L193 SmtUtils]: Spent 366.00 ms on a formula simplification that was a NOOP. DAG size: 205 [2020-10-23 20:14:48,701 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-23 20:14:48,702 INFO L93 Difference]: Finished difference Result 761 states and 867 transitions. [2020-10-23 20:14:48,707 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-10-23 20:14:48,708 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 158 [2020-10-23 20:14:48,709 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-23 20:14:48,714 INFO L225 Difference]: With dead ends: 761 [2020-10-23 20:14:48,714 INFO L226 Difference]: Without dead ends: 591 [2020-10-23 20:14:48,717 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 19 SyntacticMatches, 1 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 23 ImplicationChecksByTransitivity, 3.3s TimeCoverageRelationStatistics Valid=71, Invalid=169, Unknown=0, NotChecked=0, Total=240 [2020-10-23 20:14:48,719 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 591 states. [2020-10-23 20:14:48,990 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 591 to 518. [2020-10-23 20:14:48,990 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 518 states. [2020-10-23 20:14:48,995 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 518 states to 518 states and 576 transitions. [2020-10-23 20:14:48,995 INFO L78 Accepts]: Start accepts. Automaton has 518 states and 576 transitions. Word has length 158 [2020-10-23 20:14:48,996 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-23 20:14:48,996 INFO L481 AbstractCegarLoop]: Abstraction has 518 states and 576 transitions. [2020-10-23 20:14:48,996 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-10-23 20:14:48,996 INFO L276 IsEmpty]: Start isEmpty. Operand 518 states and 576 transitions. [2020-10-23 20:14:49,000 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 168 [2020-10-23 20:14:49,000 INFO L414 BasicCegarLoop]: Found error trace [2020-10-23 20:14:49,001 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] [2020-10-23 20:14:49,001 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-23 20:14:49,001 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 20:14:49,002 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-23 20:14:49,002 INFO L82 PathProgramCache]: Analyzing trace with hash -690775051, now seen corresponding path program 1 times [2020-10-23 20:14:49,002 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-23 20:14:49,003 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1957735991] [2020-10-23 20:14:49,003 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-23 20:14:49,007 INFO L321 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-10-23 20:14:49,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:14:49,643 WARN L193 SmtUtils]: Spent 427.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2020-10-23 20:14:49,645 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-23 20:14:49,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:14:49,719 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2020-10-23 20:14:49,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:14:49,723 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2020-10-23 20:14:49,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:14:49,727 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2020-10-23 20:14:49,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:14:49,794 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-10-23 20:14:49,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:14:49,824 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2020-10-23 20:14:49,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:14:49,830 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 144 [2020-10-23 20:14:49,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:14:49,878 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 154 [2020-10-23 20:14:49,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:14:49,958 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-23 20:14:49,958 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1957735991] [2020-10-23 20:14:49,959 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-23 20:14:49,959 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2020-10-23 20:14:49,959 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [713048925] [2020-10-23 20:14:49,960 INFO L461 AbstractCegarLoop]: Interpolant automaton has 14 states [2020-10-23 20:14:49,961 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-23 20:14:49,961 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2020-10-23 20:14:49,963 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=155, Unknown=0, NotChecked=0, Total=182 [2020-10-23 20:14:49,963 INFO L87 Difference]: Start difference. First operand 518 states and 576 transitions. Second operand 14 states. [2020-10-23 20:14:50,693 WARN L193 SmtUtils]: Spent 350.00 ms on a formula simplification that was a NOOP. DAG size: 204 [2020-10-23 20:14:51,255 WARN L193 SmtUtils]: Spent 387.00 ms on a formula simplification that was a NOOP. DAG size: 207 [2020-10-23 20:14:51,701 WARN L193 SmtUtils]: Spent 412.00 ms on a formula simplification that was a NOOP. DAG size: 209 [2020-10-23 20:14:52,137 WARN L193 SmtUtils]: Spent 375.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2020-10-23 20:14:52,568 WARN L193 SmtUtils]: Spent 383.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2020-10-23 20:14:52,959 WARN L193 SmtUtils]: Spent 354.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2020-10-23 20:14:53,877 WARN L193 SmtUtils]: Spent 361.00 ms on a formula simplification that was a NOOP. DAG size: 205 [2020-10-23 20:14:55,662 WARN L193 SmtUtils]: Spent 370.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2020-10-23 20:14:56,193 WARN L193 SmtUtils]: Spent 393.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2020-10-23 20:14:56,910 WARN L193 SmtUtils]: Spent 394.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2020-10-23 20:14:57,468 WARN L193 SmtUtils]: Spent 414.00 ms on a formula simplification that was a NOOP. DAG size: 207 [2020-10-23 20:14:57,901 WARN L193 SmtUtils]: Spent 367.00 ms on a formula simplification that was a NOOP. DAG size: 204 [2020-10-23 20:14:58,308 WARN L193 SmtUtils]: Spent 370.00 ms on a formula simplification that was a NOOP. DAG size: 211 [2020-10-23 20:14:58,745 WARN L193 SmtUtils]: Spent 392.00 ms on a formula simplification that was a NOOP. DAG size: 209 [2020-10-23 20:14:59,199 WARN L193 SmtUtils]: Spent 358.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2020-10-23 20:14:59,578 WARN L193 SmtUtils]: Spent 330.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2020-10-23 20:15:00,208 WARN L193 SmtUtils]: Spent 384.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2020-10-23 20:15:00,791 WARN L193 SmtUtils]: Spent 378.00 ms on a formula simplification that was a NOOP. DAG size: 211 [2020-10-23 20:15:01,305 WARN L193 SmtUtils]: Spent 388.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2020-10-23 20:15:01,983 WARN L193 SmtUtils]: Spent 396.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2020-10-23 20:15:05,556 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-23 20:15:05,556 INFO L93 Difference]: Finished difference Result 1819 states and 2238 transitions. [2020-10-23 20:15:05,561 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2020-10-23 20:15:05,561 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 167 [2020-10-23 20:15:05,562 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-23 20:15:05,573 INFO L225 Difference]: With dead ends: 1819 [2020-10-23 20:15:05,573 INFO L226 Difference]: Without dead ends: 1416 [2020-10-23 20:15:05,576 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 56 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 230 ImplicationChecksByTransitivity, 8.8s TimeCoverageRelationStatistics Valid=252, Invalid=1008, Unknown=0, NotChecked=0, Total=1260 [2020-10-23 20:15:05,579 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1416 states. [2020-10-23 20:15:06,142 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1416 to 1277. [2020-10-23 20:15:06,142 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1277 states. [2020-10-23 20:15:06,154 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1277 states to 1277 states and 1489 transitions. [2020-10-23 20:15:06,155 INFO L78 Accepts]: Start accepts. Automaton has 1277 states and 1489 transitions. Word has length 167 [2020-10-23 20:15:06,156 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-23 20:15:06,156 INFO L481 AbstractCegarLoop]: Abstraction has 1277 states and 1489 transitions. [2020-10-23 20:15:06,156 INFO L482 AbstractCegarLoop]: Interpolant automaton has 14 states. [2020-10-23 20:15:06,157 INFO L276 IsEmpty]: Start isEmpty. Operand 1277 states and 1489 transitions. [2020-10-23 20:15:06,162 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 173 [2020-10-23 20:15:06,162 INFO L414 BasicCegarLoop]: Found error trace [2020-10-23 20:15:06,162 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-23 20:15:06,163 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-23 20:15:06,163 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 20:15:06,163 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-23 20:15:06,164 INFO L82 PathProgramCache]: Analyzing trace with hash -1079142311, now seen corresponding path program 1 times [2020-10-23 20:15:06,164 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-23 20:15:06,164 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1554418945] [2020-10-23 20:15:06,164 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-23 20:15:06,168 INFO L321 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-10-23 20:15:06,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:15:06,707 WARN L193 SmtUtils]: Spent 407.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2020-10-23 20:15:06,708 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-23 20:15:06,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:15:06,796 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2020-10-23 20:15:06,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:15:06,801 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2020-10-23 20:15:06,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:15:06,806 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2020-10-23 20:15:06,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:15:06,810 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-10-23 20:15:06,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:15:06,828 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2020-10-23 20:15:06,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:15:06,847 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2020-10-23 20:15:06,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:15:06,852 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 149 [2020-10-23 20:15:06,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:15:06,861 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 159 [2020-10-23 20:15:06,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:15:06,924 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 20:15:06,928 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1554418945] [2020-10-23 20:15:06,929 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-23 20:15:06,929 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-10-23 20:15:06,929 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [315260553] [2020-10-23 20:15:06,933 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-23 20:15:06,934 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-23 20:15:06,936 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-23 20:15:06,937 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-10-23 20:15:06,937 INFO L87 Difference]: Start difference. First operand 1277 states and 1489 transitions. Second operand 6 states. [2020-10-23 20:15:07,741 WARN L193 SmtUtils]: Spent 376.00 ms on a formula simplification that was a NOOP. DAG size: 204 [2020-10-23 20:15:11,153 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-23 20:15:11,154 INFO L93 Difference]: Finished difference Result 2880 states and 3550 transitions. [2020-10-23 20:15:11,154 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-23 20:15:11,154 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 172 [2020-10-23 20:15:11,155 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-23 20:15:11,166 INFO L225 Difference]: With dead ends: 2880 [2020-10-23 20:15:11,166 INFO L226 Difference]: Without dead ends: 1718 [2020-10-23 20:15:11,173 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=42, Invalid=68, Unknown=0, NotChecked=0, Total=110 [2020-10-23 20:15:11,176 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1718 states. [2020-10-23 20:15:12,077 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1718 to 1594. [2020-10-23 20:15:12,077 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1594 states. [2020-10-23 20:15:12,086 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1594 states to 1594 states and 1860 transitions. [2020-10-23 20:15:12,087 INFO L78 Accepts]: Start accepts. Automaton has 1594 states and 1860 transitions. Word has length 172 [2020-10-23 20:15:12,088 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-23 20:15:12,088 INFO L481 AbstractCegarLoop]: Abstraction has 1594 states and 1860 transitions. [2020-10-23 20:15:12,088 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-23 20:15:12,088 INFO L276 IsEmpty]: Start isEmpty. Operand 1594 states and 1860 transitions. [2020-10-23 20:15:12,094 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 212 [2020-10-23 20:15:12,094 INFO L414 BasicCegarLoop]: Found error trace [2020-10-23 20:15:12,095 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 20:15:12,095 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-23 20:15:12,096 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 20:15:12,096 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-23 20:15:12,096 INFO L82 PathProgramCache]: Analyzing trace with hash 1517946735, now seen corresponding path program 1 times [2020-10-23 20:15:12,097 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-23 20:15:12,097 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [343189674] [2020-10-23 20:15:12,097 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-23 20:15:12,296 WARN L193 SmtUtils]: Spent 187.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 58 [2020-10-23 20:15:12,606 WARN L193 SmtUtils]: Spent 159.00 ms on a formula simplification. DAG size of input: 61 DAG size of output: 54 [2020-10-23 20:15:12,845 WARN L193 SmtUtils]: Spent 160.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 58 [2020-10-23 20:15:12,957 WARN L193 SmtUtils]: Spent 108.00 ms on a formula simplification that was a NOOP. DAG size: 56 [2020-10-23 20:15:13,132 WARN L193 SmtUtils]: Spent 168.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 55 [2020-10-23 20:15:13,378 WARN L193 SmtUtils]: Spent 161.00 ms on a formula simplification. DAG size of input: 61 DAG size of output: 54 [2020-10-23 20:15:13,619 WARN L193 SmtUtils]: Spent 160.00 ms on a formula simplification. DAG size of input: 61 DAG size of output: 54 [2020-10-23 20:15:13,868 WARN L193 SmtUtils]: Spent 162.00 ms on a formula simplification. DAG size of input: 61 DAG size of output: 54 [2020-10-23 20:15:14,114 WARN L193 SmtUtils]: Spent 170.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 58 [2020-10-23 20:15:14,373 WARN L193 SmtUtils]: Spent 173.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 58 [2020-10-23 20:15:14,637 WARN L193 SmtUtils]: Spent 178.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 58 [2020-10-23 20:15:14,885 WARN L193 SmtUtils]: Spent 161.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 55 [2020-10-23 20:15:15,138 WARN L193 SmtUtils]: Spent 175.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 58 [2020-10-23 20:15:15,384 WARN L193 SmtUtils]: Spent 164.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 55 [2020-10-23 20:15:15,632 WARN L193 SmtUtils]: Spent 165.00 ms on a formula simplification. DAG size of input: 61 DAG size of output: 54 [2020-10-23 20:15:18,597 WARN L193 SmtUtils]: Spent 667.00 ms on a formula simplification. DAG size of input: 172 DAG size of output: 168 [2020-10-23 20:15:21,203 WARN L193 SmtUtils]: Spent 477.00 ms on a formula simplification. DAG size of input: 172 DAG size of output: 168 [2020-10-23 20:15:21,227 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:15:23,872 WARN L193 SmtUtils]: Spent 510.00 ms on a formula simplification. DAG size of input: 174 DAG size of output: 170 [2020-10-23 20:15:26,513 WARN L193 SmtUtils]: Spent 507.00 ms on a formula simplification. DAG size of input: 174 DAG size of output: 170 [2020-10-23 20:15:26,520 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:15:29,221 WARN L193 SmtUtils]: Spent 534.00 ms on a formula simplification. DAG size of input: 174 DAG size of output: 170 [2020-10-23 20:15:31,814 WARN L193 SmtUtils]: Spent 477.00 ms on a formula simplification. DAG size of input: 172 DAG size of output: 168 [2020-10-23 20:15:31,819 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:15:34,483 WARN L193 SmtUtils]: Spent 529.00 ms on a formula simplification. DAG size of input: 174 DAG size of output: 170 [2020-10-23 20:15:37,090 WARN L193 SmtUtils]: Spent 492.00 ms on a formula simplification. DAG size of input: 172 DAG size of output: 168 [2020-10-23 20:15:37,097 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:15:37,102 INFO L309 leratedInterpolation]: Starting analysis with loop acceleration approximation UNDERAPPROXIMATION [2020-10-23 20:15:39,634 WARN L193 SmtUtils]: Spent 415.00 ms on a formula simplification. DAG size of input: 169 DAG size of output: 165 [2020-10-23 20:15:39,640 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:15:42,216 WARN L193 SmtUtils]: Spent 492.00 ms on a formula simplification. DAG size of input: 169 DAG size of output: 165 [2020-10-23 20:15:42,223 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:15:44,809 WARN L193 SmtUtils]: Spent 504.00 ms on a formula simplification. DAG size of input: 171 DAG size of output: 167 [2020-10-23 20:15:44,816 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:15:47,360 WARN L193 SmtUtils]: Spent 457.00 ms on a formula simplification. DAG size of input: 169 DAG size of output: 164 [2020-10-23 20:15:49,935 WARN L193 SmtUtils]: Spent 475.00 ms on a formula simplification. DAG size of input: 171 DAG size of output: 167 [2020-10-23 20:15:49,941 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:15:52,494 WARN L193 SmtUtils]: Spent 453.00 ms on a formula simplification. DAG size of input: 171 DAG size of output: 166 [2020-10-23 20:15:52,500 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:15:55,045 WARN L193 SmtUtils]: Spent 472.00 ms on a formula simplification. DAG size of input: 169 DAG size of output: 165 [2020-10-23 20:15:55,051 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:15:57,605 WARN L193 SmtUtils]: Spent 485.00 ms on a formula simplification. DAG size of input: 171 DAG size of output: 167 [2020-10-23 20:15:57,613 INFO L309 leratedInterpolation]: Starting analysis with loop acceleration approximation UNDERAPPROXIMATION [2020-10-23 20:16:00,222 WARN L193 SmtUtils]: Spent 508.00 ms on a formula simplification. DAG size of input: 174 DAG size of output: 170 [2020-10-23 20:16:00,227 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:16:02,787 WARN L193 SmtUtils]: Spent 477.00 ms on a formula simplification. DAG size of input: 172 DAG size of output: 168 [2020-10-23 20:16:02,794 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:16:04,127 WARN L193 SmtUtils]: Spent 526.00 ms on a formula simplification. DAG size of input: 174 DAG size of output: 170 [2020-10-23 20:16:04,131 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:16:06,759 WARN L193 SmtUtils]: Spent 555.00 ms on a formula simplification. DAG size of input: 172 DAG size of output: 168 [2020-10-23 20:16:09,427 WARN L193 SmtUtils]: Spent 570.00 ms on a formula simplification. DAG size of input: 174 DAG size of output: 170 [2020-10-23 20:16:09,433 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:16:12,028 WARN L193 SmtUtils]: Spent 527.00 ms on a formula simplification. DAG size of input: 172 DAG size of output: 168 [2020-10-23 20:16:14,629 WARN L193 SmtUtils]: Spent 536.00 ms on a formula simplification. DAG size of input: 172 DAG size of output: 168 [2020-10-23 20:16:14,635 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:16:17,328 WARN L193 SmtUtils]: Spent 546.00 ms on a formula simplification. DAG size of input: 174 DAG size of output: 170 [2020-10-23 20:16:17,331 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:16:17,335 INFO L309 leratedInterpolation]: Starting analysis with loop acceleration approximation UNDERAPPROXIMATION [2020-10-23 20:16:17,767 WARN L193 SmtUtils]: Spent 415.00 ms on a formula simplification. DAG size of input: 121 DAG size of output: 117 [2020-10-23 20:16:18,171 WARN L193 SmtUtils]: Spent 382.00 ms on a formula simplification. DAG size of input: 121 DAG size of output: 117 [2020-10-23 20:16:18,552 WARN L193 SmtUtils]: Spent 364.00 ms on a formula simplification. DAG size of input: 122 DAG size of output: 117 [2020-10-23 20:16:18,942 WARN L193 SmtUtils]: Spent 366.00 ms on a formula simplification. DAG size of input: 121 DAG size of output: 117 [2020-10-23 20:16:19,354 WARN L193 SmtUtils]: Spent 386.00 ms on a formula simplification. DAG size of input: 122 DAG size of output: 117 [2020-10-23 20:16:19,751 WARN L193 SmtUtils]: Spent 379.00 ms on a formula simplification. DAG size of input: 122 DAG size of output: 117 [2020-10-23 20:16:20,153 WARN L193 SmtUtils]: Spent 381.00 ms on a formula simplification. DAG size of input: 122 DAG size of output: 117 [2020-10-23 20:16:20,549 WARN L193 SmtUtils]: Spent 379.00 ms on a formula simplification. DAG size of input: 121 DAG size of output: 117 [2020-10-23 20:16:20,553 INFO L309 leratedInterpolation]: Starting analysis with loop acceleration approximation UNDERAPPROXIMATION [2020-10-23 20:16:20,981 WARN L193 SmtUtils]: Spent 403.00 ms on a formula simplification. DAG size of input: 121 DAG size of output: 114 [2020-10-23 20:16:21,353 WARN L193 SmtUtils]: Spent 356.00 ms on a formula simplification. DAG size of input: 121 DAG size of output: 113 [2020-10-23 20:16:21,738 WARN L193 SmtUtils]: Spent 367.00 ms on a formula simplification. DAG size of input: 121 DAG size of output: 113 [2020-10-23 20:16:22,137 WARN L193 SmtUtils]: Spent 383.00 ms on a formula simplification. DAG size of input: 121 DAG size of output: 113 [2020-10-23 20:16:22,523 WARN L193 SmtUtils]: Spent 355.00 ms on a formula simplification. DAG size of input: 121 DAG size of output: 114 [2020-10-23 20:16:22,904 WARN L193 SmtUtils]: Spent 366.00 ms on a formula simplification. DAG size of input: 121 DAG size of output: 114 [2020-10-23 20:16:23,291 WARN L193 SmtUtils]: Spent 371.00 ms on a formula simplification. DAG size of input: 121 DAG size of output: 114 [2020-10-23 20:16:23,700 WARN L193 SmtUtils]: Spent 394.00 ms on a formula simplification. DAG size of input: 121 DAG size of output: 114 [2020-10-23 20:16:23,703 INFO L309 leratedInterpolation]: Starting analysis with loop acceleration approximation UNDERAPPROXIMATION [2020-10-23 20:16:24,064 WARN L193 SmtUtils]: Spent 345.00 ms on a formula simplification. DAG size of input: 121 DAG size of output: 113 [2020-10-23 20:16:24,473 WARN L193 SmtUtils]: Spent 389.00 ms on a formula simplification. DAG size of input: 120 DAG size of output: 113 [2020-10-23 20:16:24,857 WARN L193 SmtUtils]: Spent 363.00 ms on a formula simplification. DAG size of input: 121 DAG size of output: 114 [2020-10-23 20:16:25,250 WARN L193 SmtUtils]: Spent 375.00 ms on a formula simplification. DAG size of input: 121 DAG size of output: 114 [2020-10-23 20:16:25,641 WARN L193 SmtUtils]: Spent 373.00 ms on a formula simplification. DAG size of input: 120 DAG size of output: 114 [2020-10-23 20:16:26,022 WARN L193 SmtUtils]: Spent 351.00 ms on a formula simplification. DAG size of input: 121 DAG size of output: 114 [2020-10-23 20:16:26,386 WARN L193 SmtUtils]: Spent 348.00 ms on a formula simplification. DAG size of input: 120 DAG size of output: 114 [2020-10-23 20:16:26,791 WARN L193 SmtUtils]: Spent 357.00 ms on a formula simplification. DAG size of input: 120 DAG size of output: 113 [2020-10-23 20:16:26,798 INFO L309 leratedInterpolation]: Starting analysis with loop acceleration approximation UNDERAPPROXIMATION [2020-10-23 20:16:27,194 WARN L193 SmtUtils]: Spent 381.00 ms on a formula simplification. DAG size of input: 121 DAG size of output: 114 [2020-10-23 20:16:27,594 WARN L193 SmtUtils]: Spent 376.00 ms on a formula simplification. DAG size of input: 121 DAG size of output: 113 [2020-10-23 20:16:27,990 WARN L193 SmtUtils]: Spent 372.00 ms on a formula simplification. DAG size of input: 121 DAG size of output: 113 [2020-10-23 20:16:28,384 WARN L193 SmtUtils]: Spent 379.00 ms on a formula simplification. DAG size of input: 121 DAG size of output: 114 [2020-10-23 20:16:28,763 WARN L193 SmtUtils]: Spent 365.00 ms on a formula simplification. DAG size of input: 121 DAG size of output: 113 [2020-10-23 20:16:29,128 WARN L193 SmtUtils]: Spent 346.00 ms on a formula simplification. DAG size of input: 121 DAG size of output: 114 [2020-10-23 20:16:29,552 WARN L193 SmtUtils]: Spent 403.00 ms on a formula simplification. DAG size of input: 121 DAG size of output: 114 [2020-10-23 20:16:29,957 WARN L193 SmtUtils]: Spent 386.00 ms on a formula simplification. DAG size of input: 121 DAG size of output: 114 [2020-10-23 20:16:29,960 INFO L309 leratedInterpolation]: Starting analysis with loop acceleration approximation UNDERAPPROXIMATION [2020-10-23 20:16:31,492 WARN L193 SmtUtils]: Spent 524.00 ms on a formula simplification. DAG size of input: 178 DAG size of output: 174 [2020-10-23 20:16:31,497 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:16:34,066 WARN L193 SmtUtils]: Spent 499.00 ms on a formula simplification. DAG size of input: 176 DAG size of output: 172 [2020-10-23 20:16:34,070 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:16:36,654 WARN L193 SmtUtils]: Spent 508.00 ms on a formula simplification. DAG size of input: 176 DAG size of output: 172 [2020-10-23 20:16:36,659 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:16:39,295 WARN L193 SmtUtils]: Spent 533.00 ms on a formula simplification. DAG size of input: 176 DAG size of output: 172 [2020-10-23 20:16:39,299 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:16:41,347 WARN L193 SmtUtils]: Spent 615.00 ms on a formula simplification. DAG size of input: 178 DAG size of output: 174 [2020-10-23 20:16:41,352 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:16:44,053 WARN L193 SmtUtils]: Spent 576.00 ms on a formula simplification. DAG size of input: 178 DAG size of output: 174 [2020-10-23 20:16:46,710 WARN L193 SmtUtils]: Spent 561.00 ms on a formula simplification. DAG size of input: 176 DAG size of output: 172 [2020-10-23 20:16:46,713 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:16:49,526 WARN L193 SmtUtils]: Spent 699.00 ms on a formula simplification. DAG size of input: 178 DAG size of output: 174 [2020-10-23 20:16:49,531 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:16:49,536 INFO L309 leratedInterpolation]: Starting analysis with loop acceleration approximation UNDERAPPROXIMATION [2020-10-23 20:16:52,259 WARN L193 SmtUtils]: Spent 627.00 ms on a formula simplification. DAG size of input: 176 DAG size of output: 172 [2020-10-23 20:16:52,263 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:16:54,946 WARN L193 SmtUtils]: Spent 597.00 ms on a formula simplification. DAG size of input: 174 DAG size of output: 170 [2020-10-23 20:16:54,951 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:16:57,779 WARN L193 SmtUtils]: Spent 742.00 ms on a formula simplification. DAG size of input: 176 DAG size of output: 172 [2020-10-23 20:16:57,782 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:17:00,503 WARN L193 SmtUtils]: Spent 594.00 ms on a formula simplification. DAG size of input: 176 DAG size of output: 172 [2020-10-23 20:17:00,507 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:17:02,872 WARN L193 SmtUtils]: Spent 617.00 ms on a formula simplification. DAG size of input: 176 DAG size of output: 172 [2020-10-23 20:17:02,878 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:17:05,553 WARN L193 SmtUtils]: Spent 575.00 ms on a formula simplification. DAG size of input: 174 DAG size of output: 170 [2020-10-23 20:17:05,557 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:17:08,231 WARN L193 SmtUtils]: Spent 577.00 ms on a formula simplification. DAG size of input: 174 DAG size of output: 170 [2020-10-23 20:17:08,236 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:17:10,887 WARN L193 SmtUtils]: Spent 575.00 ms on a formula simplification. DAG size of input: 174 DAG size of output: 170 [2020-10-23 20:17:10,893 INFO L309 leratedInterpolation]: Starting analysis with loop acceleration approximation UNDERAPPROXIMATION [2020-10-23 20:17:13,532 WARN L193 SmtUtils]: Spent 572.00 ms on a formula simplification. DAG size of input: 176 DAG size of output: 172 [2020-10-23 20:17:13,536 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:17:16,247 WARN L193 SmtUtils]: Spent 626.00 ms on a formula simplification. DAG size of input: 176 DAG size of output: 172 [2020-10-23 20:17:16,257 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:17:18,004 WARN L193 SmtUtils]: Spent 643.00 ms on a formula simplification. DAG size of input: 178 DAG size of output: 174 [2020-10-23 20:17:18,007 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:17:20,771 WARN L193 SmtUtils]: Spent 701.00 ms on a formula simplification. DAG size of input: 176 DAG size of output: 172 [2020-10-23 20:17:20,775 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:17:23,524 WARN L193 SmtUtils]: Spent 679.00 ms on a formula simplification. DAG size of input: 178 DAG size of output: 174 [2020-10-23 20:17:26,256 WARN L193 SmtUtils]: Spent 665.00 ms on a formula simplification. DAG size of input: 176 DAG size of output: 172 [2020-10-23 20:17:26,261 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:17:29,069 WARN L193 SmtUtils]: Spent 691.00 ms on a formula simplification. DAG size of input: 178 DAG size of output: 174 [2020-10-23 20:17:29,074 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:17:31,115 WARN L193 SmtUtils]: Spent 684.00 ms on a formula simplification. DAG size of input: 178 DAG size of output: 174 [2020-10-23 20:17:31,118 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:17:31,125 INFO L309 leratedInterpolation]: Starting analysis with loop acceleration approximation UNDERAPPROXIMATION [2020-10-23 20:17:31,585 WARN L193 SmtUtils]: Spent 439.00 ms on a formula simplification. DAG size of input: 121 DAG size of output: 117 [2020-10-23 20:17:32,041 WARN L193 SmtUtils]: Spent 438.00 ms on a formula simplification. DAG size of input: 121 DAG size of output: 117 [2020-10-23 20:17:32,501 WARN L193 SmtUtils]: Spent 443.00 ms on a formula simplification. DAG size of input: 122 DAG size of output: 117 [2020-10-23 20:17:32,938 WARN L193 SmtUtils]: Spent 421.00 ms on a formula simplification. DAG size of input: 122 DAG size of output: 117 [2020-10-23 20:17:33,337 WARN L193 SmtUtils]: Spent 381.00 ms on a formula simplification. DAG size of input: 122 DAG size of output: 117 [2020-10-23 20:17:33,770 WARN L193 SmtUtils]: Spent 418.00 ms on a formula simplification. DAG size of input: 122 DAG size of output: 117 [2020-10-23 20:17:34,231 WARN L193 SmtUtils]: Spent 445.00 ms on a formula simplification. DAG size of input: 121 DAG size of output: 117 [2020-10-23 20:17:34,681 WARN L193 SmtUtils]: Spent 433.00 ms on a formula simplification. DAG size of input: 121 DAG size of output: 117 [2020-10-23 20:17:34,683 INFO L309 leratedInterpolation]: Starting analysis with loop acceleration approximation UNDERAPPROXIMATION [2020-10-23 20:17:37,413 WARN L193 SmtUtils]: Spent 667.00 ms on a formula simplification. DAG size of input: 174 DAG size of output: 170 [2020-10-23 20:17:37,417 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:17:40,176 WARN L193 SmtUtils]: Spent 680.00 ms on a formula simplification. DAG size of input: 174 DAG size of output: 170 [2020-10-23 20:17:40,181 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:17:42,880 WARN L193 SmtUtils]: Spent 625.00 ms on a formula simplification. DAG size of input: 174 DAG size of output: 170 [2020-10-23 20:17:42,883 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:17:45,691 WARN L193 SmtUtils]: Spent 740.00 ms on a formula simplification. DAG size of input: 176 DAG size of output: 172 [2020-10-23 20:17:45,695 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:17:48,322 WARN L193 SmtUtils]: Spent 556.00 ms on a formula simplification. DAG size of input: 176 DAG size of output: 172 [2020-10-23 20:17:48,325 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:17:50,917 WARN L193 SmtUtils]: Spent 538.00 ms on a formula simplification. DAG size of input: 174 DAG size of output: 170 [2020-10-23 20:17:50,921 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:17:53,604 WARN L193 SmtUtils]: Spent 609.00 ms on a formula simplification. DAG size of input: 176 DAG size of output: 172 [2020-10-23 20:17:53,608 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:17:56,570 WARN L193 SmtUtils]: Spent 878.00 ms on a formula simplification. DAG size of input: 176 DAG size of output: 172 [2020-10-23 20:17:56,573 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:17:56,577 INFO L309 leratedInterpolation]: Starting analysis with loop acceleration approximation UNDERAPPROXIMATION [2020-10-23 20:17:56,991 WARN L193 SmtUtils]: Spent 400.00 ms on a formula simplification. DAG size of input: 122 DAG size of output: 117 [2020-10-23 20:17:57,412 WARN L193 SmtUtils]: Spent 405.00 ms on a formula simplification. DAG size of input: 122 DAG size of output: 117 [2020-10-23 20:17:57,788 WARN L193 SmtUtils]: Spent 356.00 ms on a formula simplification. DAG size of input: 122 DAG size of output: 117 [2020-10-23 20:17:58,206 WARN L193 SmtUtils]: Spent 403.00 ms on a formula simplification. DAG size of input: 122 DAG size of output: 117 [2020-10-23 20:17:58,623 WARN L193 SmtUtils]: Spent 401.00 ms on a formula simplification. DAG size of input: 122 DAG size of output: 117 [2020-10-23 20:17:59,036 WARN L193 SmtUtils]: Spent 397.00 ms on a formula simplification. DAG size of input: 122 DAG size of output: 117 [2020-10-23 20:17:59,449 WARN L193 SmtUtils]: Spent 398.00 ms on a formula simplification. DAG size of input: 122 DAG size of output: 117 [2020-10-23 20:17:59,870 WARN L193 SmtUtils]: Spent 406.00 ms on a formula simplification. DAG size of input: 122 DAG size of output: 117 [2020-10-23 20:17:59,872 INFO L309 leratedInterpolation]: Starting analysis with loop acceleration approximation UNDERAPPROXIMATION [2020-10-23 20:18:02,559 WARN L193 SmtUtils]: Spent 627.00 ms on a formula simplification. DAG size of input: 169 DAG size of output: 165 [2020-10-23 20:18:02,564 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:18:05,177 WARN L193 SmtUtils]: Spent 546.00 ms on a formula simplification. DAG size of input: 167 DAG size of output: 163 [2020-10-23 20:18:05,180 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:18:07,793 WARN L193 SmtUtils]: Spent 553.00 ms on a formula simplification. DAG size of input: 167 DAG size of output: 163 [2020-10-23 20:18:10,372 WARN L193 SmtUtils]: Spent 519.00 ms on a formula simplification. DAG size of input: 169 DAG size of output: 165 [2020-10-23 20:18:12,943 WARN L193 SmtUtils]: Spent 516.00 ms on a formula simplification. DAG size of input: 167 DAG size of output: 163 [2020-10-23 20:18:14,762 WARN L193 SmtUtils]: Spent 555.00 ms on a formula simplification. DAG size of input: 169 DAG size of output: 165 [2020-10-23 20:18:17,435 WARN L193 SmtUtils]: Spent 593.00 ms on a formula simplification. DAG size of input: 169 DAG size of output: 164 [2020-10-23 20:18:17,439 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:18:20,077 WARN L193 SmtUtils]: Spent 535.00 ms on a formula simplification. DAG size of input: 167 DAG size of output: 162 [2020-10-23 20:18:20,082 INFO L309 leratedInterpolation]: Starting analysis with loop acceleration approximation UNDERAPPROXIMATION [2020-10-23 20:18:20,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-23 20:18:20,591 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-23 20:18:20,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-23 20:18:20,837 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-23 20:18:21,074 INFO L173 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2020-10-23 20:18:21,075 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-10-23 20:18:21,077 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-23 20:18:21,118 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 23.10 08:18:21 BoogieIcfgContainer [2020-10-23 20:18:21,118 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-23 20:18:21,123 INFO L168 Benchmark]: Toolchain (without parser) took 231256.82 ms. Allocated memory was 154.1 MB in the beginning and 676.3 MB in the end (delta: 522.2 MB). Free memory was 130.0 MB in the beginning and 375.8 MB in the end (delta: -245.9 MB). Peak memory consumption was 276.9 MB. Max. memory is 8.0 GB. [2020-10-23 20:18:21,124 INFO L168 Benchmark]: CDTParser took 1.26 ms. Allocated memory is still 125.8 MB. Free memory is still 107.6 MB. There was no memory consumed. Max. memory is 8.0 GB. [2020-10-23 20:18:21,131 INFO L168 Benchmark]: CACSL2BoogieTranslator took 632.35 ms. Allocated memory is still 154.1 MB. Free memory was 129.4 MB in the beginning and 136.3 MB in the end (delta: -6.9 MB). Peak memory consumption was 25.7 MB. Max. memory is 8.0 GB. [2020-10-23 20:18:21,132 INFO L168 Benchmark]: Boogie Preprocessor took 168.32 ms. Allocated memory is still 154.1 MB. Free memory was 136.3 MB in the beginning and 132.2 MB in the end (delta: 4.1 MB). Peak memory consumption was 4.2 MB. Max. memory is 8.0 GB. [2020-10-23 20:18:21,132 INFO L168 Benchmark]: RCFGBuilder took 1552.60 ms. Allocated memory is still 154.1 MB. Free memory was 132.2 MB in the beginning and 109.3 MB in the end (delta: 22.9 MB). Peak memory consumption was 49.0 MB. Max. memory is 8.0 GB. [2020-10-23 20:18:21,132 INFO L168 Benchmark]: TraceAbstraction took 228890.89 ms. Allocated memory was 154.1 MB in the beginning and 676.3 MB in the end (delta: 522.2 MB). Free memory was 108.8 MB in the beginning and 375.8 MB in the end (delta: -267.1 MB). Peak memory consumption was 254.6 MB. Max. memory is 8.0 GB. [2020-10-23 20:18:21,135 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 1.26 ms. Allocated memory is still 125.8 MB. Free memory is still 107.6 MB. There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 632.35 ms. Allocated memory is still 154.1 MB. Free memory was 129.4 MB in the beginning and 136.3 MB in the end (delta: -6.9 MB). Peak memory consumption was 25.7 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 168.32 ms. Allocated memory is still 154.1 MB. Free memory was 136.3 MB in the beginning and 132.2 MB in the end (delta: 4.1 MB). Peak memory consumption was 4.2 MB. Max. memory is 8.0 GB. * RCFGBuilder took 1552.60 ms. Allocated memory is still 154.1 MB. Free memory was 132.2 MB in the beginning and 109.3 MB in the end (delta: 22.9 MB). Peak memory consumption was 49.0 MB. Max. memory is 8.0 GB. * TraceAbstraction took 228890.89 ms. Allocated memory was 154.1 MB in the beginning and 676.3 MB in the end (delta: 522.2 MB). Free memory was 108.8 MB in the beginning and 375.8 MB in the end (delta: -267.1 MB). Peak memory consumption was 254.6 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: [L189] int pumpRunning = 0; [L190] int systemActive = 1; [L419] int cleanupTimeShifts = 4; [L515] int waterLevel = 1; [L516] int methaneLevelCritical = 0; [L796] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L492] int retValue_acc ; [L493] int tmp ; [L497] FCALL select_helpers() [L498] FCALL select_features() [L499] CALL, EXPR valid_product() [L71] int retValue_acc ; [L74] retValue_acc = 1 [L75] return (retValue_acc); [L499] RET, EXPR valid_product() [L499] tmp = valid_product() [L501] COND TRUE \read(tmp) [L503] FCALL setup() [L504] CALL runTest() [L486] CALL test() [L115] int splverifierCounter ; [L116] int tmp ; [L117] int tmp___0 ; [L118] int tmp___1 ; [L119] int tmp___2 ; [L122] splverifierCounter = 0 [L124] COND TRUE 1 [L126] COND TRUE splverifierCounter < 4 [L132] tmp = __VERIFIER_nondet_int() [L134] COND TRUE \read(tmp) [L136] CALL waterRise() [L533] COND TRUE waterLevel < 2 [L534] waterLevel = waterLevel + 1 [L136] RET waterRise() [L142] tmp___0 = __VERIFIER_nondet_int() [L144] COND FALSE !(\read(tmp___0)) [L152] tmp___2 = __VERIFIER_nondet_int() [L154] COND FALSE !(\read(tmp___2)) [L158] tmp___1 = __VERIFIER_nondet_int() [L160] COND TRUE \read(tmp___1) [L162] CALL stopSystem() [L407] COND FALSE !(\read(pumpRunning)) [L414] systemActive = 0 [L162] RET stopSystem() [L169] CALL timeShift() [L196] COND FALSE !(\read(pumpRunning)) [L203] COND FALSE !(\read(systemActive)) [L211] CALL __utac_acc__Specification4_spec__1() [L84] int tmp ; [L85] int tmp___0 ; [L89] CALL, EXPR getWaterLevel() [L586] int retValue_acc ; [L589] retValue_acc = waterLevel [L590] return (retValue_acc); [L89] RET, EXPR getWaterLevel() [L89] tmp = getWaterLevel() [L91] COND FALSE !(tmp == 0) [L211] RET __utac_acc__Specification4_spec__1() [L169] RET timeShift() [L124] COND TRUE 1 [L126] COND TRUE splverifierCounter < 4 [L132] tmp = __VERIFIER_nondet_int() [L134] COND TRUE \read(tmp) [L136] CALL waterRise() [L533] COND TRUE waterLevel < 2 [L534] waterLevel = waterLevel + 1 [L136] RET waterRise() [L142] tmp___0 = __VERIFIER_nondet_int() [L144] COND FALSE !(\read(tmp___0)) [L152] tmp___2 = __VERIFIER_nondet_int() [L154] COND TRUE \read(tmp___2) [L169] CALL timeShift() [L196] COND FALSE !(\read(pumpRunning)) [L203] COND FALSE !(\read(systemActive)) [L211] CALL __utac_acc__Specification4_spec__1() [L84] int tmp ; [L85] int tmp___0 ; [L89] CALL, EXPR getWaterLevel() [L586] int retValue_acc ; [L589] retValue_acc = waterLevel [L590] return (retValue_acc); [L89] RET, EXPR getWaterLevel() [L89] tmp = getWaterLevel() [L91] COND TRUE tmp == 0 [L93] CALL, EXPR isPumpRunning() [L321] int retValue_acc ; [L324] retValue_acc = pumpRunning [L325] return (retValue_acc); [L93] RET, EXPR isPumpRunning() [L93] tmp___0 = isPumpRunning() [L95] COND TRUE \read(tmp___0) [L97] CALL __automaton_fail() [L622] CALL reach_error() [L3] __assert_fail("0", "minepump_spec4_product59.cil.c", 3, "reach_error") - StatisticsResult: Ultimate Automizer benchmark data CFG has 43 procedures, 665 locations, 5 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 228.7s, OverallIterations: 6, TraceHistogramMax: 2, AutomataDifference: 33.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 1384 SDtfs, 2632 SDslu, 2035 SDs, 0 SdLazy, 5467 SolverSat, 888 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 15.5s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 157 GetRequests, 95 SyntacticMatches, 1 SemanticMatches, 61 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 258 ImplicationChecksByTransitivity, 14.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=1594occurred in iteration=5, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 2.1s AutomataMinimizationTime, 5 MinimizatonAttempts, 419 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...