/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_product43.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.2.0-b8ad66e [2020-10-23 20:11:04,599 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-23 20:11:04,603 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-23 20:11:04,671 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-23 20:11:04,672 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-23 20:11:04,677 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-23 20:11:04,681 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-23 20:11:04,689 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-23 20:11:04,693 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-23 20:11:04,702 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-23 20:11:04,703 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-23 20:11:04,705 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-23 20:11:04,706 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-23 20:11:04,707 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-23 20:11:04,708 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-23 20:11:04,710 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-23 20:11:04,712 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-23 20:11:04,713 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-23 20:11:04,731 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-23 20:11:04,736 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-23 20:11:04,739 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-23 20:11:04,740 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-23 20:11:04,742 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-23 20:11:04,744 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-23 20:11:04,747 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-23 20:11:04,748 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-23 20:11:04,748 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-23 20:11:04,749 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-23 20:11:04,750 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-23 20:11:04,752 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-23 20:11:04,752 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-23 20:11:04,753 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-23 20:11:04,754 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-23 20:11:04,755 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-23 20:11:04,756 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-23 20:11:04,757 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-23 20:11:04,758 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-23 20:11:04,758 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-23 20:11:04,759 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-23 20:11:04,760 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-23 20:11:04,761 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-23 20:11:04,762 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 20:11:04,776 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-23 20:11:04,776 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-23 20:11:04,778 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-23 20:11:04,779 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-23 20:11:04,779 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-23 20:11:04,779 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-23 20:11:04,779 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-23 20:11:04,780 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-23 20:11:04,780 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-23 20:11:04,780 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-23 20:11:04,780 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-23 20:11:04,781 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-23 20:11:04,781 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-23 20:11:04,781 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-23 20:11:04,782 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-23 20:11:04,782 INFO L138 SettingsManager]: * Size of a code block=SingleStatement [2020-10-23 20:11:04,782 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-23 20:11:04,782 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-23 20:11:04,783 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-23 20:11:04,783 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-23 20:11:04,783 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=AcceleratedInterpolation [2020-10-23 20:11:04,784 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-23 20:11:04,784 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2020-10-23 20:11:05,248 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-23 20:11:05,287 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-23 20:11:05,290 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-23 20:11:05,293 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-23 20:11:05,294 INFO L275 PluginConnector]: CDTParser initialized [2020-10-23 20:11:05,296 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec4_product43.cil.c [2020-10-23 20:11:05,424 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/37a0a2219/b9e9a1316d244af59a201585e104db9a/FLAGe35377101 [2020-10-23 20:11:06,564 INFO L306 CDTParser]: Found 1 translation units. [2020-10-23 20:11:06,565 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/minepump_spec4_product43.cil.c [2020-10-23 20:11:06,579 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/37a0a2219/b9e9a1316d244af59a201585e104db9a/FLAGe35377101 [2020-10-23 20:11:06,724 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/37a0a2219/b9e9a1316d244af59a201585e104db9a [2020-10-23 20:11:06,730 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-23 20:11:06,744 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-23 20:11:06,750 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-23 20:11:06,751 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-23 20:11:06,758 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-23 20:11:06,760 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.10 08:11:06" (1/1) ... [2020-10-23 20:11:06,768 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2a1c635 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 08:11:06, skipping insertion in model container [2020-10-23 20:11:06,769 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.10 08:11:06" (1/1) ... [2020-10-23 20:11:06,782 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-23 20:11:06,849 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-23 20:11:07,214 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-23 20:11:07,229 INFO L203 MainTranslator]: Completed pre-run [2020-10-23 20:11:07,338 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-23 20:11:07,388 INFO L208 MainTranslator]: Completed translation [2020-10-23 20:11:07,389 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 08:11:07 WrapperNode [2020-10-23 20:11:07,389 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-23 20:11:07,391 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-23 20:11:07,391 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-23 20:11:07,391 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-23 20:11:07,407 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 08:11:07" (1/1) ... [2020-10-23 20:11:07,408 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 08:11:07" (1/1) ... [2020-10-23 20:11:07,440 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 08:11:07" (1/1) ... [2020-10-23 20:11:07,440 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 08:11:07" (1/1) ... [2020-10-23 20:11:07,517 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 08:11:07" (1/1) ... [2020-10-23 20:11:07,527 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 08:11:07" (1/1) ... [2020-10-23 20:11:07,533 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 08:11:07" (1/1) ... [2020-10-23 20:11:07,542 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-23 20:11:07,544 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-23 20:11:07,544 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-23 20:11:07,544 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-23 20:11:07,546 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 08:11:07" (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 20:11:07,667 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-23 20:11:07,668 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-23 20:11:07,668 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2020-10-23 20:11:07,668 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2020-10-23 20:11:07,669 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2020-10-23 20:11:07,669 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2020-10-23 20:11:07,669 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2020-10-23 20:11:07,669 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2020-10-23 20:11:07,669 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump__wrappee__highWaterSensor [2020-10-23 20:11:07,669 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2020-10-23 20:11:07,669 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2020-10-23 20:11:07,670 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2020-10-23 20:11:07,670 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2020-10-23 20:11:07,670 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2020-10-23 20:11:07,671 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterLevel [2020-10-23 20:11:07,671 INFO L138 BoogieDeclarations]: Found implementation of procedure stopSystem [2020-10-23 20:11:07,673 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2020-10-23 20:11:07,673 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2020-10-23 20:11:07,674 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2020-10-23 20:11:07,674 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2020-10-23 20:11:07,675 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2020-10-23 20:11:07,675 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-23 20:11:07,679 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2020-10-23 20:11:07,680 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2020-10-23 20:11:07,680 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2020-10-23 20:11:07,680 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2020-10-23 20:11:07,680 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2020-10-23 20:11:07,680 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2020-10-23 20:11:07,680 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterSensorDry [2020-10-23 20:11:07,680 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2020-10-23 20:11:07,680 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2020-10-23 20:11:07,681 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2020-10-23 20:11:07,681 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2020-10-23 20:11:07,681 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2020-10-23 20:11:07,681 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2020-10-23 20:11:07,681 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2020-10-23 20:11:07,681 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2020-10-23 20:11:07,682 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2020-10-23 20:11:07,682 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2020-10-23 20:11:07,682 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification4_spec__1 [2020-10-23 20:11:07,682 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-10-23 20:11:07,682 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-10-23 20:11:07,683 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2020-10-23 20:11:07,683 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-23 20:11:07,683 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-10-23 20:11:07,683 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2020-10-23 20:11:07,683 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2020-10-23 20:11:07,683 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2020-10-23 20:11:07,683 INFO L130 BoogieDeclarations]: Found specification of procedure stopSystem [2020-10-23 20:11:07,684 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2020-10-23 20:11:07,684 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2020-10-23 20:11:07,684 INFO L130 BoogieDeclarations]: Found specification of procedure test [2020-10-23 20:11:07,684 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2020-10-23 20:11:07,684 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2020-10-23 20:11:07,684 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2020-10-23 20:11:07,684 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterSensorDry [2020-10-23 20:11:07,685 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2020-10-23 20:11:07,685 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2020-10-23 20:11:07,685 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2020-10-23 20:11:07,685 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2020-10-23 20:11:07,685 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification4_spec__1 [2020-10-23 20:11:07,685 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2020-10-23 20:11:07,685 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2020-10-23 20:11:07,686 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterLevel [2020-10-23 20:11:07,686 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump__wrappee__highWaterSensor [2020-10-23 20:11:07,686 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2020-10-23 20:11:07,686 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2020-10-23 20:11:07,686 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2020-10-23 20:11:07,686 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2020-10-23 20:11:07,686 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2020-10-23 20:11:07,687 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2020-10-23 20:11:07,687 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2020-10-23 20:11:07,687 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2020-10-23 20:11:07,687 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-23 20:11:07,687 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2020-10-23 20:11:07,688 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2020-10-23 20:11:07,688 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-10-23 20:11:07,688 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-10-23 20:11:07,688 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2020-10-23 20:11:07,688 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-10-23 20:11:07,688 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-10-23 20:11:07,689 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-23 20:11:07,689 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-10-23 20:11:07,689 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2020-10-23 20:11:07,689 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-23 20:11:07,689 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2020-10-23 20:11:07,689 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2020-10-23 20:11:07,690 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-10-23 20:11:07,690 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2020-10-23 20:11:07,690 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2020-10-23 20:11:07,690 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2020-10-23 20:11:07,690 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-23 20:11:07,690 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-23 20:11:07,690 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-23 20:11:09,713 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-23 20:11:09,714 INFO L298 CfgBuilder]: Removed 5 assume(true) statements. [2020-10-23 20:11:09,717 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.10 08:11:09 BoogieIcfgContainer [2020-10-23 20:11:09,718 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-23 20:11:09,720 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-23 20:11:09,720 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-23 20:11:09,724 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-23 20:11:09,724 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.10 08:11:06" (1/3) ... [2020-10-23 20:11:09,725 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7b144a1d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.10 08:11:09, skipping insertion in model container [2020-10-23 20:11:09,726 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 08:11:07" (2/3) ... [2020-10-23 20:11:09,726 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7b144a1d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.10 08:11:09, skipping insertion in model container [2020-10-23 20:11:09,726 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.10 08:11:09" (3/3) ... [2020-10-23 20:11:09,728 INFO L111 eAbstractionObserver]: Analyzing ICFG minepump_spec4_product43.cil.c [2020-10-23 20:11:09,744 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:AcceleratedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-23 20:11:09,751 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 5 error locations. [2020-10-23 20:11:09,767 INFO L253 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2020-10-23 20:11:09,795 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-23 20:11:09,795 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-23 20:11:09,796 INFO L379 AbstractCegarLoop]: Compute interpolants for AcceleratedInterpolation [2020-10-23 20:11:09,796 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-23 20:11:09,796 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-23 20:11:09,796 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-23 20:11:09,796 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-23 20:11:09,796 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-23 20:11:09,822 INFO L276 IsEmpty]: Start isEmpty. Operand 318 states. [2020-10-23 20:11:09,844 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 149 [2020-10-23 20:11:09,844 INFO L414 BasicCegarLoop]: Found error trace [2020-10-23 20:11:09,845 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 20:11:09,846 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 20:11:09,854 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-23 20:11:09,855 INFO L82 PathProgramCache]: Analyzing trace with hash -352745031, now seen corresponding path program 1 times [2020-10-23 20:11:09,865 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-23 20:11:09,866 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1520176358] [2020-10-23 20:11:09,867 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-23 20:11:09,960 INFO L321 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-10-23 20:11:10,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:11:10,886 WARN L193 SmtUtils]: Spent 444.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2020-10-23 20:11:10,891 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-23 20:11:10,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:11:11,126 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2020-10-23 20:11:11,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:11:11,138 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2020-10-23 20:11:11,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:11:11,146 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2020-10-23 20:11:11,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:11:11,152 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-10-23 20:11:11,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:11:11,156 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2020-10-23 20:11:11,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:11:11,161 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2020-10-23 20:11:11,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:11:11,215 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 20:11:11,218 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1520176358] [2020-10-23 20:11:11,222 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-23 20:11:11,225 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-23 20:11:11,226 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1994324584] [2020-10-23 20:11:11,242 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-23 20:11:11,243 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-23 20:11:11,262 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-23 20:11:11,264 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-23 20:11:11,268 INFO L87 Difference]: Start difference. First operand 318 states. Second operand 3 states. [2020-10-23 20:11:14,047 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-23 20:11:14,048 INFO L93 Difference]: Finished difference Result 495 states and 583 transitions. [2020-10-23 20:11:14,049 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-23 20:11:14,051 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 148 [2020-10-23 20:11:14,052 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-23 20:11:14,074 INFO L225 Difference]: With dead ends: 495 [2020-10-23 20:11:14,074 INFO L226 Difference]: Without dead ends: 307 [2020-10-23 20:11:14,081 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-23 20:11:14,109 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 307 states. [2020-10-23 20:11:14,289 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 307 to 264. [2020-10-23 20:11:14,291 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 264 states. [2020-10-23 20:11:14,295 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 264 states to 264 states and 284 transitions. [2020-10-23 20:11:14,299 INFO L78 Accepts]: Start accepts. Automaton has 264 states and 284 transitions. Word has length 148 [2020-10-23 20:11:14,300 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-23 20:11:14,300 INFO L481 AbstractCegarLoop]: Abstraction has 264 states and 284 transitions. [2020-10-23 20:11:14,301 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-23 20:11:14,301 INFO L276 IsEmpty]: Start isEmpty. Operand 264 states and 284 transitions. [2020-10-23 20:11:14,307 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 150 [2020-10-23 20:11:14,307 INFO L414 BasicCegarLoop]: Found error trace [2020-10-23 20:11:14,308 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 20:11:14,308 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-23 20:11:14,309 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 20:11:14,310 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-23 20:11:14,311 INFO L82 PathProgramCache]: Analyzing trace with hash -1082267533, now seen corresponding path program 1 times [2020-10-23 20:11:14,311 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-23 20:11:14,311 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [585226394] [2020-10-23 20:11:14,312 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-23 20:11:14,319 INFO L321 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-10-23 20:11:14,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:11:15,033 WARN L193 SmtUtils]: Spent 438.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2020-10-23 20:11:15,037 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-23 20:11:15,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:11:15,141 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2020-10-23 20:11:15,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:11:15,148 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2020-10-23 20:11:15,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:11:15,152 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2020-10-23 20:11:15,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:11:15,156 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-10-23 20:11:15,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:11:15,158 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2020-10-23 20:11:15,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:11:15,163 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2020-10-23 20:11:15,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:11:15,200 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 20:11:15,200 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [585226394] [2020-10-23 20:11:15,201 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-23 20:11:15,201 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-23 20:11:15,201 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [529997671] [2020-10-23 20:11:15,204 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-23 20:11:15,205 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-23 20:11:15,207 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-23 20:11:15,208 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-23 20:11:15,208 INFO L87 Difference]: Start difference. First operand 264 states and 284 transitions. Second operand 4 states. [2020-10-23 20:11:16,292 WARN L193 SmtUtils]: Spent 409.00 ms on a formula simplification that was a NOOP. DAG size: 205 [2020-10-23 20:11:17,900 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-23 20:11:17,901 INFO L93 Difference]: Finished difference Result 400 states and 444 transitions. [2020-10-23 20:11:17,901 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-23 20:11:17,902 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 149 [2020-10-23 20:11:17,903 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-23 20:11:17,909 INFO L225 Difference]: With dead ends: 400 [2020-10-23 20:11:17,910 INFO L226 Difference]: Without dead ends: 290 [2020-10-23 20:11:17,914 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-10-23 20:11:17,916 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 290 states. [2020-10-23 20:11:18,095 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 290 to 254. [2020-10-23 20:11:18,096 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 254 states. [2020-10-23 20:11:18,098 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 254 states to 254 states and 271 transitions. [2020-10-23 20:11:18,099 INFO L78 Accepts]: Start accepts. Automaton has 254 states and 271 transitions. Word has length 149 [2020-10-23 20:11:18,103 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-23 20:11:18,104 INFO L481 AbstractCegarLoop]: Abstraction has 254 states and 271 transitions. [2020-10-23 20:11:18,104 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-23 20:11:18,104 INFO L276 IsEmpty]: Start isEmpty. Operand 254 states and 271 transitions. [2020-10-23 20:11:18,115 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 159 [2020-10-23 20:11:18,116 INFO L414 BasicCegarLoop]: Found error trace [2020-10-23 20:11:18,116 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 20:11:18,116 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-23 20:11:18,117 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 20:11:18,117 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-23 20:11:18,118 INFO L82 PathProgramCache]: Analyzing trace with hash 1868155360, now seen corresponding path program 1 times [2020-10-23 20:11:18,118 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-23 20:11:18,118 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [302986647] [2020-10-23 20:11:18,119 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-23 20:11:18,124 INFO L321 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-10-23 20:11:18,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:11:18,915 WARN L193 SmtUtils]: Spent 454.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2020-10-23 20:11:18,918 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-23 20:11:18,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:11:19,057 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2020-10-23 20:11:19,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:11:19,062 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2020-10-23 20:11:19,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:11:19,067 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2020-10-23 20:11:19,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:11:19,165 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-10-23 20:11:19,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:11:19,175 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2020-10-23 20:11:19,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:11:19,180 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 145 [2020-10-23 20:11:19,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:11:19,249 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 20:11:19,250 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [302986647] [2020-10-23 20:11:19,250 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-23 20:11:19,250 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-10-23 20:11:19,250 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [957513441] [2020-10-23 20:11:19,254 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-10-23 20:11:19,255 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-23 20:11:19,257 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-10-23 20:11:19,258 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2020-10-23 20:11:19,259 INFO L87 Difference]: Start difference. First operand 254 states and 271 transitions. Second operand 9 states. [2020-10-23 20:11:20,202 WARN L193 SmtUtils]: Spent 419.00 ms on a formula simplification that was a NOOP. DAG size: 204 [2020-10-23 20:11:20,764 WARN L193 SmtUtils]: Spent 400.00 ms on a formula simplification that was a NOOP. DAG size: 207 [2020-10-23 20:11:21,242 WARN L193 SmtUtils]: Spent 431.00 ms on a formula simplification that was a NOOP. DAG size: 209 [2020-10-23 20:11:21,713 WARN L193 SmtUtils]: Spent 404.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2020-10-23 20:11:22,166 WARN L193 SmtUtils]: Spent 416.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2020-10-23 20:11:22,616 WARN L193 SmtUtils]: Spent 415.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2020-10-23 20:11:24,222 WARN L193 SmtUtils]: Spent 409.00 ms on a formula simplification that was a NOOP. DAG size: 205 [2020-10-23 20:11:27,482 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-23 20:11:27,482 INFO L93 Difference]: Finished difference Result 664 states and 753 transitions. [2020-10-23 20:11:27,482 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-10-23 20:11:27,483 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 158 [2020-10-23 20:11:27,488 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-23 20:11:27,495 INFO L225 Difference]: With dead ends: 664 [2020-10-23 20:11:27,496 INFO L226 Difference]: Without dead ends: 525 [2020-10-23 20:11:27,502 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 19 SyntacticMatches, 1 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 23 ImplicationChecksByTransitivity, 3.6s TimeCoverageRelationStatistics Valid=71, Invalid=169, Unknown=0, NotChecked=0, Total=240 [2020-10-23 20:11:27,506 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 525 states. [2020-10-23 20:11:27,816 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 525 to 444. [2020-10-23 20:11:27,817 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 444 states. [2020-10-23 20:11:27,821 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 444 states to 444 states and 488 transitions. [2020-10-23 20:11:27,823 INFO L78 Accepts]: Start accepts. Automaton has 444 states and 488 transitions. Word has length 158 [2020-10-23 20:11:27,826 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-23 20:11:27,826 INFO L481 AbstractCegarLoop]: Abstraction has 444 states and 488 transitions. [2020-10-23 20:11:27,827 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-10-23 20:11:27,827 INFO L276 IsEmpty]: Start isEmpty. Operand 444 states and 488 transitions. [2020-10-23 20:11:27,833 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 167 [2020-10-23 20:11:27,833 INFO L414 BasicCegarLoop]: Found error trace [2020-10-23 20:11:27,834 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-23 20:11:27,834 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-23 20:11:27,834 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 20:11:27,835 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-23 20:11:27,835 INFO L82 PathProgramCache]: Analyzing trace with hash -1138652179, now seen corresponding path program 1 times [2020-10-23 20:11:27,835 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-23 20:11:27,837 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2008885299] [2020-10-23 20:11:27,838 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-23 20:11:27,847 INFO L321 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-10-23 20:11:27,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:11:28,322 WARN L193 SmtUtils]: Spent 339.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2020-10-23 20:11:28,325 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-23 20:11:28,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:11:28,393 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2020-10-23 20:11:28,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:11:28,399 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2020-10-23 20:11:28,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:11:28,404 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2020-10-23 20:11:28,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:11:28,408 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-10-23 20:11:28,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:11:28,419 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2020-10-23 20:11:28,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:11:28,449 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-23 20:11:28,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:11:28,452 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2020-10-23 20:11:28,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:11:28,455 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 153 [2020-10-23 20:11:28,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:11:28,499 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 20:11:28,500 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2008885299] [2020-10-23 20:11:28,500 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-23 20:11:28,500 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-10-23 20:11:28,500 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2001460183] [2020-10-23 20:11:28,501 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-23 20:11:28,501 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-23 20:11:28,502 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-23 20:11:28,502 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2020-10-23 20:11:28,502 INFO L87 Difference]: Start difference. First operand 444 states and 488 transitions. Second operand 6 states. [2020-10-23 20:11:29,455 WARN L193 SmtUtils]: Spent 482.00 ms on a formula simplification that was a NOOP. DAG size: 204 [2020-10-23 20:11:32,250 WARN L193 SmtUtils]: Spent 394.00 ms on a formula simplification that was a NOOP. DAG size: 205 [2020-10-23 20:11:33,148 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-23 20:11:33,149 INFO L93 Difference]: Finished difference Result 1085 states and 1262 transitions. [2020-10-23 20:11:33,150 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-23 20:11:33,150 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 166 [2020-10-23 20:11:33,151 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-23 20:11:33,157 INFO L225 Difference]: With dead ends: 1085 [2020-10-23 20:11:33,157 INFO L226 Difference]: Without dead ends: 756 [2020-10-23 20:11:33,160 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=34, Invalid=76, Unknown=0, NotChecked=0, Total=110 [2020-10-23 20:11:33,162 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 756 states. [2020-10-23 20:11:33,516 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 756 to 638. [2020-10-23 20:11:33,517 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 638 states. [2020-10-23 20:11:33,522 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 638 states to 638 states and 702 transitions. [2020-10-23 20:11:33,523 INFO L78 Accepts]: Start accepts. Automaton has 638 states and 702 transitions. Word has length 166 [2020-10-23 20:11:33,524 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-23 20:11:33,524 INFO L481 AbstractCegarLoop]: Abstraction has 638 states and 702 transitions. [2020-10-23 20:11:33,524 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-23 20:11:33,524 INFO L276 IsEmpty]: Start isEmpty. Operand 638 states and 702 transitions. [2020-10-23 20:11:33,526 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 168 [2020-10-23 20:11:33,527 INFO L414 BasicCegarLoop]: Found error trace [2020-10-23 20:11:33,527 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 20:11:33,527 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-23 20:11:33,528 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 20:11:33,528 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-23 20:11:33,528 INFO L82 PathProgramCache]: Analyzing trace with hash 234080981, now seen corresponding path program 1 times [2020-10-23 20:11:33,529 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-23 20:11:33,529 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1566543640] [2020-10-23 20:11:33,529 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-23 20:11:33,533 INFO L321 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-10-23 20:11:33,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:11:34,092 WARN L193 SmtUtils]: Spent 380.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2020-10-23 20:11:34,093 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-23 20:11:34,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:11:34,173 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2020-10-23 20:11:34,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:11:34,178 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2020-10-23 20:11:34,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:11:34,183 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2020-10-23 20:11:34,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:11:34,252 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-10-23 20:11:34,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:11:34,281 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2020-10-23 20:11:34,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:11:34,286 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 144 [2020-10-23 20:11:34,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:11:34,350 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 154 [2020-10-23 20:11:34,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:11:34,416 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 20:11:34,417 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1566543640] [2020-10-23 20:11:34,418 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-23 20:11:34,418 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2020-10-23 20:11:34,418 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2049550865] [2020-10-23 20:11:34,419 INFO L461 AbstractCegarLoop]: Interpolant automaton has 14 states [2020-10-23 20:11:34,420 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-23 20:11:34,423 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2020-10-23 20:11:34,423 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=155, Unknown=0, NotChecked=0, Total=182 [2020-10-23 20:11:34,424 INFO L87 Difference]: Start difference. First operand 638 states and 702 transitions. Second operand 14 states. [2020-10-23 20:11:35,416 WARN L193 SmtUtils]: Spent 430.00 ms on a formula simplification that was a NOOP. DAG size: 204 [2020-10-23 20:11:36,038 WARN L193 SmtUtils]: Spent 411.00 ms on a formula simplification that was a NOOP. DAG size: 207 [2020-10-23 20:11:36,476 WARN L193 SmtUtils]: Spent 402.00 ms on a formula simplification that was a NOOP. DAG size: 209 [2020-10-23 20:11:37,013 WARN L193 SmtUtils]: Spent 463.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2020-10-23 20:11:37,497 WARN L193 SmtUtils]: Spent 417.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2020-10-23 20:11:37,964 WARN L193 SmtUtils]: Spent 405.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2020-10-23 20:11:39,027 WARN L193 SmtUtils]: Spent 357.00 ms on a formula simplification that was a NOOP. DAG size: 205 [2020-10-23 20:11:40,160 WARN L193 SmtUtils]: Spent 404.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2020-10-23 20:11:40,679 WARN L193 SmtUtils]: Spent 445.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2020-10-23 20:11:41,211 WARN L193 SmtUtils]: Spent 399.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2020-10-23 20:11:41,690 WARN L193 SmtUtils]: Spent 373.00 ms on a formula simplification that was a NOOP. DAG size: 207 [2020-10-23 20:11:42,154 WARN L193 SmtUtils]: Spent 415.00 ms on a formula simplification that was a NOOP. DAG size: 211 [2020-10-23 20:11:42,624 WARN L193 SmtUtils]: Spent 420.00 ms on a formula simplification that was a NOOP. DAG size: 209 [2020-10-23 20:11:43,086 WARN L193 SmtUtils]: Spent 404.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2020-10-23 20:11:43,595 WARN L193 SmtUtils]: Spent 401.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2020-10-23 20:11:44,151 WARN L193 SmtUtils]: Spent 386.00 ms on a formula simplification that was a NOOP. DAG size: 211 [2020-10-23 20:11:44,631 WARN L193 SmtUtils]: Spent 395.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2020-10-23 20:11:46,724 WARN L193 SmtUtils]: Spent 366.00 ms on a formula simplification that was a NOOP. DAG size: 204 [2020-10-23 20:11:47,190 WARN L193 SmtUtils]: Spent 391.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2020-10-23 20:11:47,819 WARN L193 SmtUtils]: Spent 396.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2020-10-23 20:11:50,302 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-23 20:11:50,303 INFO L93 Difference]: Finished difference Result 2109 states and 2506 transitions. [2020-10-23 20:11:50,304 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2020-10-23 20:11:50,304 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 167 [2020-10-23 20:11:50,305 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-23 20:11:50,318 INFO L225 Difference]: With dead ends: 2109 [2020-10-23 20:11:50,318 INFO L226 Difference]: Without dead ends: 1586 [2020-10-23 20:11:50,322 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 56 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 231 ImplicationChecksByTransitivity, 9.4s TimeCoverageRelationStatistics Valid=252, Invalid=1008, Unknown=0, NotChecked=0, Total=1260 [2020-10-23 20:11:50,326 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1586 states. [2020-10-23 20:11:51,330 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1586 to 1467. [2020-10-23 20:11:51,331 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1467 states. [2020-10-23 20:11:51,344 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1467 states to 1467 states and 1649 transitions. [2020-10-23 20:11:51,346 INFO L78 Accepts]: Start accepts. Automaton has 1467 states and 1649 transitions. Word has length 167 [2020-10-23 20:11:51,347 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-23 20:11:51,348 INFO L481 AbstractCegarLoop]: Abstraction has 1467 states and 1649 transitions. [2020-10-23 20:11:51,348 INFO L482 AbstractCegarLoop]: Interpolant automaton has 14 states. [2020-10-23 20:11:51,348 INFO L276 IsEmpty]: Start isEmpty. Operand 1467 states and 1649 transitions. [2020-10-23 20:11:51,356 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 212 [2020-10-23 20:11:51,357 INFO L414 BasicCegarLoop]: Found error trace [2020-10-23 20:11:51,358 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 20:11:51,359 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-23 20:11:51,359 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 20:11:51,360 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-23 20:11:51,361 INFO L82 PathProgramCache]: Analyzing trace with hash -2052247181, now seen corresponding path program 1 times [2020-10-23 20:11:51,361 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-23 20:11:51,361 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2139644211] [2020-10-23 20:11:51,362 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-23 20:11:51,578 WARN L193 SmtUtils]: Spent 201.00 ms on a formula simplification. DAG size of input: 61 DAG size of output: 54 [2020-10-23 20:11:51,899 WARN L193 SmtUtils]: Spent 168.00 ms on a formula simplification. DAG size of input: 61 DAG size of output: 54 [2020-10-23 20:11:52,169 WARN L193 SmtUtils]: Spent 188.00 ms on a formula simplification. DAG size of input: 61 DAG size of output: 54 [2020-10-23 20:11:52,435 WARN L193 SmtUtils]: Spent 191.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 58 [2020-10-23 20:11:52,758 WARN L193 SmtUtils]: Spent 216.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 58 [2020-10-23 20:11:53,069 WARN L193 SmtUtils]: Spent 202.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 58 [2020-10-23 20:11:53,363 WARN L193 SmtUtils]: Spent 190.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 55 [2020-10-23 20:11:53,658 WARN L193 SmtUtils]: Spent 200.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 58 [2020-10-23 20:11:53,949 WARN L193 SmtUtils]: Spent 189.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 55 [2020-10-23 20:11:54,228 WARN L193 SmtUtils]: Spent 190.00 ms on a formula simplification. DAG size of input: 61 DAG size of output: 54 [2020-10-23 20:11:54,509 WARN L193 SmtUtils]: Spent 184.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 58 [2020-10-23 20:11:54,770 WARN L193 SmtUtils]: Spent 169.00 ms on a formula simplification. DAG size of input: 61 DAG size of output: 54 [2020-10-23 20:11:55,061 WARN L193 SmtUtils]: Spent 208.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 58 [2020-10-23 20:11:55,349 WARN L193 SmtUtils]: Spent 187.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 55 [2020-10-23 20:11:55,894 WARN L193 SmtUtils]: Spent 368.00 ms on a formula simplification. DAG size of input: 120 DAG size of output: 113 [2020-10-23 20:11:56,309 WARN L193 SmtUtils]: Spent 368.00 ms on a formula simplification. DAG size of input: 121 DAG size of output: 114 [2020-10-23 20:11:56,714 WARN L193 SmtUtils]: Spent 378.00 ms on a formula simplification. DAG size of input: 121 DAG size of output: 114 [2020-10-23 20:11:57,081 WARN L193 SmtUtils]: Spent 341.00 ms on a formula simplification. DAG size of input: 120 DAG size of output: 114 [2020-10-23 20:11:57,406 WARN L193 SmtUtils]: Spent 303.00 ms on a formula simplification. DAG size of input: 121 DAG size of output: 114 [2020-10-23 20:11:57,808 WARN L193 SmtUtils]: Spent 363.00 ms on a formula simplification. DAG size of input: 120 DAG size of output: 114 [2020-10-23 20:11:58,198 WARN L193 SmtUtils]: Spent 368.00 ms on a formula simplification. DAG size of input: 121 DAG size of output: 113 [2020-10-23 20:11:58,582 WARN L193 SmtUtils]: Spent 351.00 ms on a formula simplification. DAG size of input: 120 DAG size of output: 113 [2020-10-23 20:11:58,589 INFO L309 leratedInterpolation]: Starting analysis with loop acceleration approximation UNDERAPPROXIMATION [2020-10-23 20:11:58,974 WARN L193 SmtUtils]: Spent 361.00 ms on a formula simplification. DAG size of input: 121 DAG size of output: 114 [2020-10-23 20:11:59,353 WARN L193 SmtUtils]: Spent 349.00 ms on a formula simplification. DAG size of input: 121 DAG size of output: 113 [2020-10-23 20:11:59,733 WARN L193 SmtUtils]: Spent 356.00 ms on a formula simplification. DAG size of input: 121 DAG size of output: 113 [2020-10-23 20:12:00,092 WARN L193 SmtUtils]: Spent 330.00 ms on a formula simplification. DAG size of input: 121 DAG size of output: 113 [2020-10-23 20:12:00,469 WARN L193 SmtUtils]: Spent 357.00 ms on a formula simplification. DAG size of input: 121 DAG size of output: 114 [2020-10-23 20:12:00,847 WARN L193 SmtUtils]: Spent 355.00 ms on a formula simplification. DAG size of input: 121 DAG size of output: 114 [2020-10-23 20:12:01,224 WARN L193 SmtUtils]: Spent 357.00 ms on a formula simplification. DAG size of input: 121 DAG size of output: 114 [2020-10-23 20:12:01,604 WARN L193 SmtUtils]: Spent 358.00 ms on a formula simplification. DAG size of input: 121 DAG size of output: 114 [2020-10-23 20:12:01,608 INFO L309 leratedInterpolation]: Starting analysis with loop acceleration approximation UNDERAPPROXIMATION [2020-10-23 20:12:01,978 WARN L193 SmtUtils]: Spent 358.00 ms on a formula simplification. DAG size of input: 121 DAG size of output: 114 [2020-10-23 20:12:02,355 WARN L193 SmtUtils]: Spent 361.00 ms on a formula simplification. DAG size of input: 121 DAG size of output: 114 [2020-10-23 20:12:02,721 WARN L193 SmtUtils]: Spent 349.00 ms on a formula simplification. DAG size of input: 121 DAG size of output: 114 [2020-10-23 20:12:03,112 WARN L193 SmtUtils]: Spent 344.00 ms on a formula simplification. DAG size of input: 121 DAG size of output: 113 [2020-10-23 20:12:03,469 WARN L193 SmtUtils]: Spent 333.00 ms on a formula simplification. DAG size of input: 121 DAG size of output: 114 [2020-10-23 20:12:03,802 WARN L193 SmtUtils]: Spent 316.00 ms on a formula simplification. DAG size of input: 121 DAG size of output: 114 [2020-10-23 20:12:04,126 WARN L193 SmtUtils]: Spent 303.00 ms on a formula simplification. DAG size of input: 121 DAG size of output: 113 [2020-10-23 20:12:04,447 WARN L193 SmtUtils]: Spent 292.00 ms on a formula simplification. DAG size of input: 121 DAG size of output: 113 [2020-10-23 20:12:04,450 INFO L309 leratedInterpolation]: Starting analysis with loop acceleration approximation UNDERAPPROXIMATION [2020-10-23 20:12:07,234 WARN L193 SmtUtils]: Spent 651.00 ms on a formula simplification. DAG size of input: 176 DAG size of output: 172 [2020-10-23 20:12:07,266 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:12:09,901 WARN L193 SmtUtils]: Spent 501.00 ms on a formula simplification. DAG size of input: 174 DAG size of output: 170 [2020-10-23 20:12:09,911 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:12:12,492 WARN L193 SmtUtils]: Spent 441.00 ms on a formula simplification. DAG size of input: 174 DAG size of output: 170 [2020-10-23 20:12:12,498 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:12:15,069 WARN L193 SmtUtils]: Spent 420.00 ms on a formula simplification. DAG size of input: 174 DAG size of output: 170 [2020-10-23 20:12:15,074 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:12:17,672 WARN L193 SmtUtils]: Spent 451.00 ms on a formula simplification. DAG size of input: 176 DAG size of output: 172 [2020-10-23 20:12:17,678 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:12:20,202 WARN L193 SmtUtils]: Spent 433.00 ms on a formula simplification. DAG size of input: 174 DAG size of output: 170 [2020-10-23 20:12:20,207 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:12:21,584 WARN L193 SmtUtils]: Spent 440.00 ms on a formula simplification. DAG size of input: 176 DAG size of output: 172 [2020-10-23 20:12:21,589 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:12:24,185 WARN L193 SmtUtils]: Spent 475.00 ms on a formula simplification. DAG size of input: 176 DAG size of output: 172 [2020-10-23 20:12:24,191 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:12:24,196 INFO L309 leratedInterpolation]: Starting analysis with loop acceleration approximation UNDERAPPROXIMATION [2020-10-23 20:12:25,276 WARN L193 SmtUtils]: Spent 450.00 ms on a formula simplification. DAG size of input: 178 DAG size of output: 174 [2020-10-23 20:12:25,280 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:12:27,819 WARN L193 SmtUtils]: Spent 442.00 ms on a formula simplification. DAG size of input: 176 DAG size of output: 172 [2020-10-23 20:12:27,823 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:12:30,442 WARN L193 SmtUtils]: Spent 529.00 ms on a formula simplification. DAG size of input: 178 DAG size of output: 174 [2020-10-23 20:12:30,447 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:12:32,953 WARN L193 SmtUtils]: Spent 430.00 ms on a formula simplification. DAG size of input: 176 DAG size of output: 172 [2020-10-23 20:12:32,958 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:12:34,344 WARN L193 SmtUtils]: Spent 522.00 ms on a formula simplification. DAG size of input: 178 DAG size of output: 174 [2020-10-23 20:12:34,348 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:12:35,669 WARN L193 SmtUtils]: Spent 489.00 ms on a formula simplification. DAG size of input: 178 DAG size of output: 174 [2020-10-23 20:12:35,673 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:12:38,225 WARN L193 SmtUtils]: Spent 465.00 ms on a formula simplification. DAG size of input: 176 DAG size of output: 172 [2020-10-23 20:12:40,755 WARN L193 SmtUtils]: Spent 454.00 ms on a formula simplification. DAG size of input: 176 DAG size of output: 172 [2020-10-23 20:12:40,759 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:12:40,763 INFO L309 leratedInterpolation]: Starting analysis with loop acceleration approximation UNDERAPPROXIMATION [2020-10-23 20:12:43,278 WARN L193 SmtUtils]: Spent 441.00 ms on a formula simplification. DAG size of input: 174 DAG size of output: 170 [2020-10-23 20:12:43,283 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:12:45,783 WARN L193 SmtUtils]: Spent 445.00 ms on a formula simplification. DAG size of input: 174 DAG size of output: 170 [2020-10-23 20:12:45,787 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:12:47,598 WARN L193 SmtUtils]: Spent 513.00 ms on a formula simplification. DAG size of input: 176 DAG size of output: 172 [2020-10-23 20:12:47,602 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:12:50,093 WARN L193 SmtUtils]: Spent 430.00 ms on a formula simplification. DAG size of input: 174 DAG size of output: 170 [2020-10-23 20:12:50,098 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:12:52,678 WARN L193 SmtUtils]: Spent 514.00 ms on a formula simplification. DAG size of input: 176 DAG size of output: 172 [2020-10-23 20:12:52,683 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:12:53,835 WARN L193 SmtUtils]: Spent 461.00 ms on a formula simplification. DAG size of input: 176 DAG size of output: 172 [2020-10-23 20:12:53,838 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:12:56,350 WARN L193 SmtUtils]: Spent 452.00 ms on a formula simplification. DAG size of input: 174 DAG size of output: 170 [2020-10-23 20:12:57,788 WARN L193 SmtUtils]: Spent 460.00 ms on a formula simplification. DAG size of input: 176 DAG size of output: 172 [2020-10-23 20:12:57,791 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:12:57,800 INFO L309 leratedInterpolation]: Starting analysis with loop acceleration approximation UNDERAPPROXIMATION [2020-10-23 20:12:58,147 WARN L193 SmtUtils]: Spent 329.00 ms on a formula simplification. DAG size of input: 122 DAG size of output: 117 [2020-10-23 20:12:58,498 WARN L193 SmtUtils]: Spent 337.00 ms on a formula simplification. DAG size of input: 121 DAG size of output: 117 [2020-10-23 20:12:58,843 WARN L193 SmtUtils]: Spent 330.00 ms on a formula simplification. DAG size of input: 122 DAG size of output: 117 [2020-10-23 20:12:59,227 WARN L193 SmtUtils]: Spent 362.00 ms on a formula simplification. DAG size of input: 122 DAG size of output: 117 [2020-10-23 20:12:59,575 WARN L193 SmtUtils]: Spent 331.00 ms on a formula simplification. DAG size of input: 121 DAG size of output: 117 [2020-10-23 20:12:59,922 WARN L193 SmtUtils]: Spent 332.00 ms on a formula simplification. DAG size of input: 121 DAG size of output: 117 [2020-10-23 20:13:00,290 WARN L193 SmtUtils]: Spent 354.00 ms on a formula simplification. DAG size of input: 122 DAG size of output: 117 [2020-10-23 20:13:00,639 WARN L193 SmtUtils]: Spent 333.00 ms on a formula simplification. DAG size of input: 121 DAG size of output: 117 [2020-10-23 20:13:00,642 INFO L309 leratedInterpolation]: Starting analysis with loop acceleration approximation UNDERAPPROXIMATION [2020-10-23 20:13:01,828 WARN L193 SmtUtils]: Spent 486.00 ms on a formula simplification. DAG size of input: 178 DAG size of output: 174 [2020-10-23 20:13:01,832 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:13:04,396 WARN L193 SmtUtils]: Spent 490.00 ms on a formula simplification. DAG size of input: 178 DAG size of output: 174 [2020-10-23 20:13:04,401 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:13:05,664 WARN L193 SmtUtils]: Spent 471.00 ms on a formula simplification. DAG size of input: 178 DAG size of output: 174 [2020-10-23 20:13:05,671 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:13:08,240 WARN L193 SmtUtils]: Spent 466.00 ms on a formula simplification. DAG size of input: 176 DAG size of output: 172 [2020-10-23 20:13:08,243 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:13:10,826 WARN L193 SmtUtils]: Spent 479.00 ms on a formula simplification. DAG size of input: 176 DAG size of output: 172 [2020-10-23 20:13:10,831 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:13:13,510 WARN L193 SmtUtils]: Spent 547.00 ms on a formula simplification. DAG size of input: 178 DAG size of output: 174 [2020-10-23 20:13:13,514 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:13:16,012 WARN L193 SmtUtils]: Spent 442.00 ms on a formula simplification. DAG size of input: 176 DAG size of output: 172 [2020-10-23 20:13:16,016 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:13:18,535 WARN L193 SmtUtils]: Spent 457.00 ms on a formula simplification. DAG size of input: 176 DAG size of output: 172 [2020-10-23 20:13:18,539 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:13:18,542 INFO L309 leratedInterpolation]: Starting analysis with loop acceleration approximation UNDERAPPROXIMATION [2020-10-23 20:13:18,920 WARN L193 SmtUtils]: Spent 366.00 ms on a formula simplification. DAG size of input: 122 DAG size of output: 117 [2020-10-23 20:13:19,300 WARN L193 SmtUtils]: Spent 365.00 ms on a formula simplification. DAG size of input: 122 DAG size of output: 117 [2020-10-23 20:13:19,680 WARN L193 SmtUtils]: Spent 365.00 ms on a formula simplification. DAG size of input: 122 DAG size of output: 117 [2020-10-23 20:13:20,038 WARN L193 SmtUtils]: Spent 344.00 ms on a formula simplification. DAG size of input: 122 DAG size of output: 117 [2020-10-23 20:13:20,388 WARN L193 SmtUtils]: Spent 333.00 ms on a formula simplification. DAG size of input: 121 DAG size of output: 117 [2020-10-23 20:13:20,751 WARN L193 SmtUtils]: Spent 338.00 ms on a formula simplification. DAG size of input: 121 DAG size of output: 117 [2020-10-23 20:13:21,099 WARN L193 SmtUtils]: Spent 335.00 ms on a formula simplification. DAG size of input: 121 DAG size of output: 117 [2020-10-23 20:13:21,448 WARN L193 SmtUtils]: Spent 336.00 ms on a formula simplification. DAG size of input: 121 DAG size of output: 117 [2020-10-23 20:13:21,450 INFO L309 leratedInterpolation]: Starting analysis with loop acceleration approximation UNDERAPPROXIMATION [2020-10-23 20:13:23,958 WARN L193 SmtUtils]: Spent 451.00 ms on a formula simplification. DAG size of input: 171 DAG size of output: 167 [2020-10-23 20:13:23,961 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:13:26,491 WARN L193 SmtUtils]: Spent 440.00 ms on a formula simplification. DAG size of input: 169 DAG size of output: 165 [2020-10-23 20:13:28,997 WARN L193 SmtUtils]: Spent 433.00 ms on a formula simplification. DAG size of input: 169 DAG size of output: 164 [2020-10-23 20:13:29,000 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:13:31,488 WARN L193 SmtUtils]: Spent 437.00 ms on a formula simplification. DAG size of input: 169 DAG size of output: 165 [2020-10-23 20:13:31,492 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:13:33,071 WARN L193 SmtUtils]: Spent 500.00 ms on a formula simplification. DAG size of input: 171 DAG size of output: 167 [2020-10-23 20:13:35,631 WARN L193 SmtUtils]: Spent 496.00 ms on a formula simplification. DAG size of input: 171 DAG size of output: 166 [2020-10-23 20:13:37,074 WARN L193 SmtUtils]: Spent 484.00 ms on a formula simplification. DAG size of input: 171 DAG size of output: 167 [2020-10-23 20:13:37,080 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:13:39,650 WARN L193 SmtUtils]: Spent 477.00 ms on a formula simplification. DAG size of input: 169 DAG size of output: 165 [2020-10-23 20:13:39,654 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:13:39,657 INFO L309 leratedInterpolation]: Starting analysis with loop acceleration approximation UNDERAPPROXIMATION [2020-10-23 20:13:42,261 WARN L193 SmtUtils]: Spent 541.00 ms on a formula simplification. DAG size of input: 174 DAG size of output: 170 [2020-10-23 20:13:42,264 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:13:44,851 WARN L193 SmtUtils]: Spent 524.00 ms on a formula simplification. DAG size of input: 174 DAG size of output: 170 [2020-10-23 20:13:44,855 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:13:47,410 WARN L193 SmtUtils]: Spent 486.00 ms on a formula simplification. DAG size of input: 172 DAG size of output: 168 [2020-10-23 20:13:47,414 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:13:50,024 WARN L193 SmtUtils]: Spent 519.00 ms on a formula simplification. DAG size of input: 172 DAG size of output: 168 [2020-10-23 20:13:51,885 WARN L193 SmtUtils]: Spent 583.00 ms on a formula simplification. DAG size of input: 174 DAG size of output: 170 [2020-10-23 20:13:51,917 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:13:54,525 WARN L193 SmtUtils]: Spent 548.00 ms on a formula simplification. DAG size of input: 172 DAG size of output: 168 [2020-10-23 20:13:54,529 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:13:57,113 WARN L193 SmtUtils]: Spent 525.00 ms on a formula simplification. DAG size of input: 172 DAG size of output: 168 [2020-10-23 20:13:57,117 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:13:58,738 WARN L193 SmtUtils]: Spent 562.00 ms on a formula simplification. DAG size of input: 174 DAG size of output: 170 [2020-10-23 20:13:58,741 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:13:58,745 INFO L309 leratedInterpolation]: Starting analysis with loop acceleration approximation UNDERAPPROXIMATION [2020-10-23 20:14:01,294 WARN L193 SmtUtils]: Spent 487.00 ms on a formula simplification. DAG size of input: 169 DAG size of output: 165 [2020-10-23 20:14:01,297 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:14:03,954 WARN L193 SmtUtils]: Spent 540.00 ms on a formula simplification. DAG size of input: 171 DAG size of output: 167 [2020-10-23 20:14:03,958 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:14:06,595 WARN L193 SmtUtils]: Spent 578.00 ms on a formula simplification. DAG size of input: 171 DAG size of output: 166 [2020-10-23 20:14:06,599 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:14:09,192 WARN L193 SmtUtils]: Spent 517.00 ms on a formula simplification. DAG size of input: 169 DAG size of output: 165 [2020-10-23 20:14:09,196 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:14:11,775 WARN L193 SmtUtils]: Spent 517.00 ms on a formula simplification. DAG size of input: 169 DAG size of output: 164 [2020-10-23 20:14:13,645 WARN L193 SmtUtils]: Spent 541.00 ms on a formula simplification. DAG size of input: 171 DAG size of output: 167 [2020-10-23 20:14:13,648 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:14:16,259 WARN L193 SmtUtils]: Spent 552.00 ms on a formula simplification. DAG size of input: 171 DAG size of output: 167 [2020-10-23 20:14:18,832 WARN L193 SmtUtils]: Spent 517.00 ms on a formula simplification. DAG size of input: 169 DAG size of output: 165 [2020-10-23 20:14:18,835 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:14:18,838 INFO L309 leratedInterpolation]: Starting analysis with loop acceleration approximation UNDERAPPROXIMATION [2020-10-23 20:14:21,451 WARN L193 SmtUtils]: Spent 553.00 ms on a formula simplification. DAG size of input: 170 DAG size of output: 166 [2020-10-23 20:14:24,096 WARN L193 SmtUtils]: Spent 581.00 ms on a formula simplification. DAG size of input: 170 DAG size of output: 166 [2020-10-23 20:14:24,099 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:14:26,764 WARN L193 SmtUtils]: Spent 593.00 ms on a formula simplification. DAG size of input: 172 DAG size of output: 168 [2020-10-23 20:14:26,768 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:14:29,390 WARN L193 SmtUtils]: Spent 567.00 ms on a formula simplification. DAG size of input: 170 DAG size of output: 166 [2020-10-23 20:14:29,393 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:14:32,029 WARN L193 SmtUtils]: Spent 575.00 ms on a formula simplification. DAG size of input: 172 DAG size of output: 168 [2020-10-23 20:14:32,032 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:14:34,683 WARN L193 SmtUtils]: Spent 590.00 ms on a formula simplification. DAG size of input: 172 DAG size of output: 168 [2020-10-23 20:14:34,687 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:14:36,648 WARN L193 SmtUtils]: Spent 572.00 ms on a formula simplification. DAG size of input: 172 DAG size of output: 168 [2020-10-23 20:14:36,652 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:14:39,277 WARN L193 SmtUtils]: Spent 556.00 ms on a formula simplification. DAG size of input: 170 DAG size of output: 166 [2020-10-23 20:14:39,280 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:14:39,282 INFO L309 leratedInterpolation]: Starting analysis with loop acceleration approximation UNDERAPPROXIMATION [2020-10-23 20:14:39,688 WARN L193 SmtUtils]: Spent 391.00 ms on a formula simplification. DAG size of input: 122 DAG size of output: 117 [2020-10-23 20:14:40,098 WARN L193 SmtUtils]: Spent 393.00 ms on a formula simplification. DAG size of input: 122 DAG size of output: 117 [2020-10-23 20:14:40,508 WARN L193 SmtUtils]: Spent 396.00 ms on a formula simplification. DAG size of input: 121 DAG size of output: 117 [2020-10-23 20:14:40,896 WARN L193 SmtUtils]: Spent 372.00 ms on a formula simplification. DAG size of input: 121 DAG size of output: 117 [2020-10-23 20:14:41,273 WARN L193 SmtUtils]: Spent 360.00 ms on a formula simplification. DAG size of input: 122 DAG size of output: 117 [2020-10-23 20:14:41,656 WARN L193 SmtUtils]: Spent 370.00 ms on a formula simplification. DAG size of input: 121 DAG size of output: 117 [2020-10-23 20:14:42,022 WARN L193 SmtUtils]: Spent 352.00 ms on a formula simplification. DAG size of input: 122 DAG size of output: 117 [2020-10-23 20:14:42,422 WARN L193 SmtUtils]: Spent 378.00 ms on a formula simplification. DAG size of input: 121 DAG size of output: 117 [2020-10-23 20:14:42,425 INFO L309 leratedInterpolation]: Starting analysis with loop acceleration approximation UNDERAPPROXIMATION [2020-10-23 20:14:43,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-23 20:14:43,201 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-23 20:14:43,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-23 20:14:43,501 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-23 20:14:43,764 INFO L173 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2020-10-23 20:14:43,764 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-10-23 20:14:43,767 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-23 20:14:43,811 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 23.10 08:14:43 BoogieIcfgContainer [2020-10-23 20:14:43,811 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-23 20:14:43,816 INFO L168 Benchmark]: Toolchain (without parser) took 217076.34 ms. Allocated memory was 163.6 MB in the beginning and 739.2 MB in the end (delta: 575.7 MB). Free memory was 139.2 MB in the beginning and 384.6 MB in the end (delta: -245.5 MB). Peak memory consumption was 331.0 MB. Max. memory is 8.0 GB. [2020-10-23 20:14:43,817 INFO L168 Benchmark]: CDTParser took 0.38 ms. Allocated memory is still 163.6 MB. Free memory was 137.9 MB in the beginning and 137.8 MB in the end (delta: 80.1 kB). There was no memory consumed. Max. memory is 8.0 GB. [2020-10-23 20:14:43,823 INFO L168 Benchmark]: CACSL2BoogieTranslator took 639.31 ms. Allocated memory is still 163.6 MB. Free memory was 138.6 MB in the beginning and 117.7 MB in the end (delta: 21.0 MB). Peak memory consumption was 21.0 MB. Max. memory is 8.0 GB. [2020-10-23 20:14:43,824 INFO L168 Benchmark]: Boogie Preprocessor took 151.88 ms. Allocated memory is still 163.6 MB. Free memory was 117.7 MB in the beginning and 144.2 MB in the end (delta: -26.6 MB). Peak memory consumption was 5.7 MB. Max. memory is 8.0 GB. [2020-10-23 20:14:43,824 INFO L168 Benchmark]: RCFGBuilder took 2174.30 ms. Allocated memory is still 163.6 MB. Free memory was 144.2 MB in the beginning and 120.8 MB in the end (delta: 23.4 MB). Peak memory consumption was 87.0 MB. Max. memory is 8.0 GB. [2020-10-23 20:14:43,825 INFO L168 Benchmark]: TraceAbstraction took 214091.80 ms. Allocated memory was 163.6 MB in the beginning and 739.2 MB in the end (delta: 575.7 MB). Free memory was 120.3 MB in the beginning and 384.6 MB in the end (delta: -264.4 MB). Peak memory consumption was 311.3 MB. Max. memory is 8.0 GB. [2020-10-23 20:14:43,830 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.38 ms. Allocated memory is still 163.6 MB. Free memory was 137.9 MB in the beginning and 137.8 MB in the end (delta: 80.1 kB). There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 639.31 ms. Allocated memory is still 163.6 MB. Free memory was 138.6 MB in the beginning and 117.7 MB in the end (delta: 21.0 MB). Peak memory consumption was 21.0 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 151.88 ms. Allocated memory is still 163.6 MB. Free memory was 117.7 MB in the beginning and 144.2 MB in the end (delta: -26.6 MB). Peak memory consumption was 5.7 MB. Max. memory is 8.0 GB. * RCFGBuilder took 2174.30 ms. Allocated memory is still 163.6 MB. Free memory was 144.2 MB in the beginning and 120.8 MB in the end (delta: 23.4 MB). Peak memory consumption was 87.0 MB. Max. memory is 8.0 GB. * TraceAbstraction took 214091.80 ms. Allocated memory was 163.6 MB in the beginning and 739.2 MB in the end (delta: 575.7 MB). Free memory was 120.3 MB in the beginning and 384.6 MB in the end (delta: -264.4 MB). Peak memory consumption was 311.3 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: [L122] int pumpRunning = 0; [L123] int systemActive = 1; [L317] int cleanupTimeShifts = 4; [L417] int waterLevel = 1; [L418] int methaneLevelCritical = 0; [L715] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L393] int retValue_acc ; [L394] int tmp ; [L398] FCALL select_helpers() [L399] FCALL select_features() [L400] CALL, EXPR valid_product() [L537] int retValue_acc ; [L540] retValue_acc = 1 [L541] return (retValue_acc); [L400] RET, EXPR valid_product() [L400] tmp = valid_product() [L402] COND TRUE \read(tmp) [L404] FCALL setup() [L405] CALL runTest() [L384] CALL test() [L48] int splverifierCounter ; [L49] int tmp ; [L50] int tmp___0 ; [L51] int tmp___1 ; [L52] int tmp___2 ; [L55] splverifierCounter = 0 [L57] COND TRUE 1 [L59] COND TRUE splverifierCounter < 4 [L65] tmp = __VERIFIER_nondet_int() [L67] COND TRUE \read(tmp) [L69] CALL waterRise() [L435] COND TRUE waterLevel < 2 [L436] waterLevel = waterLevel + 1 [L69] RET waterRise() [L75] tmp___0 = __VERIFIER_nondet_int() [L77] COND FALSE !(\read(tmp___0)) [L85] tmp___2 = __VERIFIER_nondet_int() [L87] COND FALSE !(\read(tmp___2)) [L91] tmp___1 = __VERIFIER_nondet_int() [L93] COND TRUE \read(tmp___1) [L95] CALL stopSystem() [L296] COND FALSE !(\read(pumpRunning)) [L303] systemActive = 0 [L95] RET stopSystem() [L102] CALL timeShift() [L130] COND FALSE !(\read(pumpRunning)) [L137] COND FALSE !(\read(systemActive)) [L145] CALL __utac_acc__Specification4_spec__1() [L913] int tmp ; [L914] int tmp___0 ; [L918] CALL, EXPR getWaterLevel() [L488] int retValue_acc ; [L491] retValue_acc = waterLevel [L492] return (retValue_acc); [L918] RET, EXPR getWaterLevel() [L918] tmp = getWaterLevel() [L920] COND FALSE !(tmp == 0) [L145] RET __utac_acc__Specification4_spec__1() [L102] RET timeShift() [L57] COND TRUE 1 [L59] COND TRUE splverifierCounter < 4 [L65] tmp = __VERIFIER_nondet_int() [L67] COND TRUE \read(tmp) [L69] CALL waterRise() [L435] COND TRUE waterLevel < 2 [L436] waterLevel = waterLevel + 1 [L69] RET waterRise() [L75] tmp___0 = __VERIFIER_nondet_int() [L77] COND FALSE !(\read(tmp___0)) [L85] tmp___2 = __VERIFIER_nondet_int() [L87] COND TRUE \read(tmp___2) [L102] CALL timeShift() [L130] COND FALSE !(\read(pumpRunning)) [L137] COND FALSE !(\read(systemActive)) [L145] CALL __utac_acc__Specification4_spec__1() [L913] int tmp ; [L914] int tmp___0 ; [L918] CALL, EXPR getWaterLevel() [L488] int retValue_acc ; [L491] retValue_acc = waterLevel [L492] return (retValue_acc); [L918] RET, EXPR getWaterLevel() [L918] tmp = getWaterLevel() [L920] COND TRUE tmp == 0 [L922] CALL, EXPR isPumpRunning() [L229] int retValue_acc ; [L232] retValue_acc = pumpRunning [L233] return (retValue_acc); [L922] RET, EXPR isPumpRunning() [L922] tmp___0 = isPumpRunning() [L924] COND TRUE \read(tmp___0) [L926] CALL __automaton_fail() [L312] CALL reach_error() [L3] __assert_fail("0", "minepump_spec4_product43.cil.c", 3, "reach_error") - StatisticsResult: Ultimate Automizer benchmark data CFG has 40 procedures, 634 locations, 5 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 213.9s, OverallIterations: 6, TraceHistogramMax: 2, AutomataDifference: 34.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 1240 SDtfs, 2318 SDslu, 2152 SDs, 0 SdLazy, 4579 SolverSat, 795 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 15.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 157 GetRequests, 95 SyntacticMatches, 1 SemanticMatches, 61 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 265 ImplicationChecksByTransitivity, 15.7s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=1467occurred 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: 2.0s AutomataMinimizationTime, 5 MinimizatonAttempts, 397 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...