/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_spec2_product33.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.2.1-dev-36cd7be [2021-02-23 16:16:27,619 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-02-23 16:16:27,624 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-02-23 16:16:27,678 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-02-23 16:16:27,679 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-02-23 16:16:27,683 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-02-23 16:16:27,687 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-02-23 16:16:27,694 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-02-23 16:16:27,697 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-02-23 16:16:27,703 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-02-23 16:16:27,704 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-02-23 16:16:27,706 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-02-23 16:16:27,707 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-02-23 16:16:27,709 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-02-23 16:16:27,711 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-02-23 16:16:27,713 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-02-23 16:16:27,724 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-02-23 16:16:27,725 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-02-23 16:16:27,732 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-02-23 16:16:27,739 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-02-23 16:16:27,741 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-02-23 16:16:27,743 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-02-23 16:16:27,744 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-02-23 16:16:27,747 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-02-23 16:16:27,750 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-02-23 16:16:27,750 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-02-23 16:16:27,751 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-02-23 16:16:27,751 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-02-23 16:16:27,755 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-02-23 16:16:27,756 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-02-23 16:16:27,756 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-02-23 16:16:27,757 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-02-23 16:16:27,760 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-02-23 16:16:27,760 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-02-23 16:16:27,761 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-02-23 16:16:27,762 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-02-23 16:16:27,764 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-02-23 16:16:27,764 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-02-23 16:16:27,764 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-02-23 16:16:27,765 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-02-23 16:16:27,766 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-02-23 16:16:27,767 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/acceleratedInterpolation/acceleratedInterpolationFastUPR_32.epf [2021-02-23 16:16:27,789 INFO L113 SettingsManager]: Loading preferences was successful [2021-02-23 16:16:27,789 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-02-23 16:16:27,793 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-02-23 16:16:27,794 INFO L138 SettingsManager]: * sizeof long=4 [2021-02-23 16:16:27,794 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-02-23 16:16:27,794 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-02-23 16:16:27,794 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-02-23 16:16:27,794 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-02-23 16:16:27,795 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-02-23 16:16:27,795 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-02-23 16:16:27,796 INFO L138 SettingsManager]: * sizeof long double=12 [2021-02-23 16:16:27,796 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-02-23 16:16:27,796 INFO L138 SettingsManager]: * Use constant arrays=true [2021-02-23 16:16:27,797 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-02-23 16:16:27,797 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-02-23 16:16:27,797 INFO L138 SettingsManager]: * Size of a code block=SingleStatement [2021-02-23 16:16:27,797 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-02-23 16:16:27,797 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-02-23 16:16:27,798 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-02-23 16:16:27,798 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-02-23 16:16:27,798 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=AcceleratedInterpolation [2021-02-23 16:16:27,798 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-02-23 16:16:27,798 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-02-23 16:16:28,178 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-02-23 16:16:28,211 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-02-23 16:16:28,214 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-02-23 16:16:28,216 INFO L271 PluginConnector]: Initializing CDTParser... [2021-02-23 16:16:28,216 INFO L275 PluginConnector]: CDTParser initialized [2021-02-23 16:16:28,217 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec2_product33.cil.c [2021-02-23 16:16:28,284 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3009ce65e/5fd5c60d60704412b5eb9c6f14083e67/FLAG245a64a4a [2021-02-23 16:16:28,987 INFO L306 CDTParser]: Found 1 translation units. [2021-02-23 16:16:28,988 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/minepump_spec2_product33.cil.c [2021-02-23 16:16:29,009 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3009ce65e/5fd5c60d60704412b5eb9c6f14083e67/FLAG245a64a4a [2021-02-23 16:16:29,201 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3009ce65e/5fd5c60d60704412b5eb9c6f14083e67 [2021-02-23 16:16:29,204 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-02-23 16:16:29,219 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2021-02-23 16:16:29,225 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-02-23 16:16:29,225 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-02-23 16:16:29,230 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-02-23 16:16:29,231 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.02 04:16:29" (1/1) ... [2021-02-23 16:16:29,233 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6c537097 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.02 04:16:29, skipping insertion in model container [2021-02-23 16:16:29,233 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.02 04:16:29" (1/1) ... [2021-02-23 16:16:29,243 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-02-23 16:16:29,319 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-02-23 16:16:29,557 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/product-lines/minepump_spec2_product33.cil.c[4518,4531] [2021-02-23 16:16:29,693 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-02-23 16:16:29,704 INFO L203 MainTranslator]: Completed pre-run [2021-02-23 16:16:29,732 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/product-lines/minepump_spec2_product33.cil.c[4518,4531] [2021-02-23 16:16:29,778 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-02-23 16:16:29,814 INFO L208 MainTranslator]: Completed translation [2021-02-23 16:16:29,814 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.02 04:16:29 WrapperNode [2021-02-23 16:16:29,814 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-02-23 16:16:29,815 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-02-23 16:16:29,816 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-02-23 16:16:29,816 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-02-23 16:16:29,829 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.02 04:16:29" (1/1) ... [2021-02-23 16:16:29,830 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.02 04:16:29" (1/1) ... [2021-02-23 16:16:29,847 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.02 04:16:29" (1/1) ... [2021-02-23 16:16:29,848 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.02 04:16:29" (1/1) ... [2021-02-23 16:16:29,882 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.02 04:16:29" (1/1) ... [2021-02-23 16:16:29,894 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.02 04:16:29" (1/1) ... [2021-02-23 16:16:29,899 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.02 04:16:29" (1/1) ... [2021-02-23 16:16:29,907 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-02-23 16:16:29,908 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-02-23 16:16:29,908 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-02-23 16:16:29,908 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-02-23 16:16:29,909 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.02 04:16:29" (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 [2021-02-23 16:16:30,008 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2021-02-23 16:16:30,008 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-02-23 16:16:30,009 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2021-02-23 16:16:30,009 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2021-02-23 16:16:30,030 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2021-02-23 16:16:30,031 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2021-02-23 16:16:30,031 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2021-02-23 16:16:30,031 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2021-02-23 16:16:30,032 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2021-02-23 16:16:30,032 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2021-02-23 16:16:30,033 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2021-02-23 16:16:30,033 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2021-02-23 16:16:30,033 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2021-02-23 16:16:30,033 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2021-02-23 16:16:30,034 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterSensorDry [2021-02-23 16:16:30,034 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2021-02-23 16:16:30,034 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2021-02-23 16:16:30,034 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2021-02-23 16:16:30,035 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2021-02-23 16:16:30,035 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2021-02-23 16:16:30,038 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2021-02-23 16:16:30,038 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2021-02-23 16:16:30,038 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2021-02-23 16:16:30,038 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2021-02-23 16:16:30,038 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2021-02-23 16:16:30,039 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2021-02-23 16:16:30,039 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2021-02-23 16:16:30,039 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2021-02-23 16:16:30,039 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2021-02-23 16:16:30,039 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterLevel [2021-02-23 16:16:30,039 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2021-02-23 16:16:30,040 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2021-02-23 16:16:30,040 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2021-02-23 16:16:30,040 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2021-02-23 16:16:30,040 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2021-02-23 16:16:30,040 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2021-02-23 16:16:30,040 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2021-02-23 16:16:30,041 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification2_spec__1 [2021-02-23 16:16:30,041 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification2_spec__2 [2021-02-23 16:16:30,041 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2021-02-23 16:16:30,041 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2021-02-23 16:16:30,041 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2021-02-23 16:16:30,041 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-02-23 16:16:30,041 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2021-02-23 16:16:30,042 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2021-02-23 16:16:30,042 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2021-02-23 16:16:30,042 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2021-02-23 16:16:30,042 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2021-02-23 16:16:30,042 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2021-02-23 16:16:30,042 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2021-02-23 16:16:30,042 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2021-02-23 16:16:30,043 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2021-02-23 16:16:30,043 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2021-02-23 16:16:30,043 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2021-02-23 16:16:30,043 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2021-02-23 16:16:30,043 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterSensorDry [2021-02-23 16:16:30,043 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2021-02-23 16:16:30,043 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2021-02-23 16:16:30,044 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2021-02-23 16:16:30,044 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2021-02-23 16:16:30,044 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2021-02-23 16:16:30,044 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification2_spec__1 [2021-02-23 16:16:30,044 INFO L130 BoogieDeclarations]: Found specification of procedure test [2021-02-23 16:16:30,044 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2021-02-23 16:16:30,044 INFO L130 BoogieDeclarations]: Found specification of procedure main [2021-02-23 16:16:30,045 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2021-02-23 16:16:30,045 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2021-02-23 16:16:30,045 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2021-02-23 16:16:30,045 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2021-02-23 16:16:30,045 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification2_spec__2 [2021-02-23 16:16:30,045 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2021-02-23 16:16:30,046 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2021-02-23 16:16:30,046 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterLevel [2021-02-23 16:16:30,046 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2021-02-23 16:16:30,046 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2021-02-23 16:16:30,047 INFO L130 BoogieDeclarations]: Found specification of procedure free [2021-02-23 16:16:30,047 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2021-02-23 16:16:30,047 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-02-23 16:16:30,048 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-02-23 16:16:30,048 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-02-23 16:16:30,048 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-02-23 16:16:30,048 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2021-02-23 16:16:30,048 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-02-23 16:16:30,048 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2021-02-23 16:16:30,049 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2021-02-23 16:16:30,050 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-02-23 16:16:30,050 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2021-02-23 16:16:30,050 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2021-02-23 16:16:30,050 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2021-02-23 16:16:30,051 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2021-02-23 16:16:30,051 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-02-23 16:16:30,051 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-02-23 16:16:31,391 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-02-23 16:16:31,392 INFO L299 CfgBuilder]: Removed 5 assume(true) statements. [2021-02-23 16:16:31,395 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.02 04:16:31 BoogieIcfgContainer [2021-02-23 16:16:31,395 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-02-23 16:16:31,397 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-02-23 16:16:31,397 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-02-23 16:16:31,400 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-02-23 16:16:31,400 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.02 04:16:29" (1/3) ... [2021-02-23 16:16:31,401 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6d3d4b73 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.02 04:16:31, skipping insertion in model container [2021-02-23 16:16:31,401 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.02 04:16:29" (2/3) ... [2021-02-23 16:16:31,402 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6d3d4b73 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.02 04:16:31, skipping insertion in model container [2021-02-23 16:16:31,402 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.02 04:16:31" (3/3) ... [2021-02-23 16:16:31,403 INFO L111 eAbstractionObserver]: Analyzing ICFG minepump_spec2_product33.cil.c [2021-02-23 16:16:31,410 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:AcceleratedInterpolation Determinization: PREDICATE_ABSTRACTION [2021-02-23 16:16:31,416 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2021-02-23 16:16:31,435 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-02-23 16:16:31,458 INFO L376 AbstractCegarLoop]: Interprodecural is true [2021-02-23 16:16:31,458 INFO L377 AbstractCegarLoop]: Hoare is true [2021-02-23 16:16:31,458 INFO L378 AbstractCegarLoop]: Compute interpolants for AcceleratedInterpolation [2021-02-23 16:16:31,459 INFO L379 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-02-23 16:16:31,459 INFO L380 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-02-23 16:16:31,459 INFO L381 AbstractCegarLoop]: Difference is false [2021-02-23 16:16:31,459 INFO L382 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-02-23 16:16:31,459 INFO L386 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-02-23 16:16:31,486 INFO L276 IsEmpty]: Start isEmpty. Operand 299 states. [2021-02-23 16:16:31,505 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2021-02-23 16:16:31,505 INFO L414 BasicCegarLoop]: Found error trace [2021-02-23 16:16:31,507 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] [2021-02-23 16:16:31,507 INFO L428 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-23 16:16:31,513 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-23 16:16:31,513 INFO L82 PathProgramCache]: Analyzing trace with hash 1993673397, now seen corresponding path program 1 times [2021-02-23 16:16:31,522 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-23 16:16:31,523 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [864395156] [2021-02-23 16:16:31,523 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-23 16:16:31,592 INFO L218 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2021-02-23 16:16:31,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 16:16:31,903 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 16:16:31,905 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 16:16:31,911 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 16:16:31,912 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 16:16:32,225 WARN L202 SmtUtils]: Spent 268.00 ms on a formula simplification that was a NOOP. DAG size: 205 [2021-02-23 16:16:32,228 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-23 16:16:32,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 16:16:32,306 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 16:16:32,307 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 16:16:32,325 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2021-02-23 16:16:32,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 16:16:32,333 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 16:16:32,334 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 16:16:32,334 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2021-02-23 16:16:32,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 16:16:32,337 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 16:16:32,338 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 16:16:32,338 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2021-02-23 16:16:32,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 16:16:32,342 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 16:16:32,343 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 16:16:32,343 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2021-02-23 16:16:32,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 16:16:32,346 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 16:16:32,347 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 16:16:32,353 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2021-02-23 16:16:32,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 16:16:32,357 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 16:16:32,358 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 16:16:32,358 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2021-02-23 16:16:32,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 16:16:32,362 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 16:16:32,362 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 16:16:32,363 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2021-02-23 16:16:32,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 16:16:32,366 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 16:16:32,367 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 16:16:32,443 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-23 16:16:32,445 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [864395156] [2021-02-23 16:16:32,447 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-23 16:16:32,448 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-02-23 16:16:32,448 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2005376801] [2021-02-23 16:16:32,456 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-02-23 16:16:32,457 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-02-23 16:16:32,474 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-02-23 16:16:32,476 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-02-23 16:16:32,478 INFO L87 Difference]: Start difference. First operand 299 states. Second operand 4 states. [2021-02-23 16:16:33,968 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-23 16:16:33,969 INFO L93 Difference]: Finished difference Result 438 states and 518 transitions. [2021-02-23 16:16:33,969 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-02-23 16:16:33,971 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 153 [2021-02-23 16:16:33,972 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-23 16:16:33,998 INFO L225 Difference]: With dead ends: 438 [2021-02-23 16:16:33,998 INFO L226 Difference]: Without dead ends: 286 [2021-02-23 16:16:34,003 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-02-23 16:16:34,020 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 286 states. [2021-02-23 16:16:34,165 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 286 to 241. [2021-02-23 16:16:34,166 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 241 states. [2021-02-23 16:16:34,169 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 241 states to 241 states and 260 transitions. [2021-02-23 16:16:34,171 INFO L78 Accepts]: Start accepts. Automaton has 241 states and 260 transitions. Word has length 153 [2021-02-23 16:16:34,172 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-23 16:16:34,172 INFO L480 AbstractCegarLoop]: Abstraction has 241 states and 260 transitions. [2021-02-23 16:16:34,172 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2021-02-23 16:16:34,172 INFO L276 IsEmpty]: Start isEmpty. Operand 241 states and 260 transitions. [2021-02-23 16:16:34,177 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 155 [2021-02-23 16:16:34,177 INFO L414 BasicCegarLoop]: Found error trace [2021-02-23 16:16:34,177 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] [2021-02-23 16:16:34,178 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-02-23 16:16:34,178 INFO L428 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-23 16:16:34,178 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-23 16:16:34,178 INFO L82 PathProgramCache]: Analyzing trace with hash 1342318383, now seen corresponding path program 1 times [2021-02-23 16:16:34,179 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-23 16:16:34,179 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1163538045] [2021-02-23 16:16:34,179 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-23 16:16:34,184 INFO L218 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2021-02-23 16:16:34,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 16:16:34,352 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 16:16:34,353 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 16:16:34,355 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 16:16:34,355 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 16:16:34,360 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 16:16:34,360 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 16:16:34,690 WARN L202 SmtUtils]: Spent 314.00 ms on a formula simplification that was a NOOP. DAG size: 205 [2021-02-23 16:16:34,692 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-23 16:16:34,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 16:16:34,733 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 16:16:34,734 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 16:16:34,740 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2021-02-23 16:16:34,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 16:16:34,742 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 16:16:34,743 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 16:16:34,743 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2021-02-23 16:16:34,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 16:16:34,745 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 16:16:34,746 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 16:16:34,746 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2021-02-23 16:16:34,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 16:16:34,749 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 16:16:34,749 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 16:16:34,750 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2021-02-23 16:16:34,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 16:16:34,752 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 16:16:34,752 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 16:16:34,760 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2021-02-23 16:16:34,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 16:16:34,763 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 16:16:34,764 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 16:16:34,764 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2021-02-23 16:16:34,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 16:16:34,767 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 16:16:34,767 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 16:16:34,768 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2021-02-23 16:16:34,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 16:16:34,770 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 16:16:34,771 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 16:16:34,820 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-23 16:16:34,820 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1163538045] [2021-02-23 16:16:34,821 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-23 16:16:34,821 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-02-23 16:16:34,821 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [298374487] [2021-02-23 16:16:34,822 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-02-23 16:16:34,822 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-02-23 16:16:34,823 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-02-23 16:16:34,823 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-02-23 16:16:34,823 INFO L87 Difference]: Start difference. First operand 241 states and 260 transitions. Second operand 5 states. [2021-02-23 16:16:35,607 WARN L202 SmtUtils]: Spent 308.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2021-02-23 16:16:36,500 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-23 16:16:36,500 INFO L93 Difference]: Finished difference Result 366 states and 412 transitions. [2021-02-23 16:16:36,501 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-02-23 16:16:36,501 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 154 [2021-02-23 16:16:36,502 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-23 16:16:36,505 INFO L225 Difference]: With dead ends: 366 [2021-02-23 16:16:36,505 INFO L226 Difference]: Without dead ends: 275 [2021-02-23 16:16:36,508 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2021-02-23 16:16:36,509 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 275 states. [2021-02-23 16:16:36,605 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 275 to 231. [2021-02-23 16:16:36,606 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 231 states. [2021-02-23 16:16:36,607 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 231 states to 231 states and 247 transitions. [2021-02-23 16:16:36,608 INFO L78 Accepts]: Start accepts. Automaton has 231 states and 247 transitions. Word has length 154 [2021-02-23 16:16:36,608 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-23 16:16:36,608 INFO L480 AbstractCegarLoop]: Abstraction has 231 states and 247 transitions. [2021-02-23 16:16:36,609 INFO L481 AbstractCegarLoop]: Interpolant automaton has 5 states. [2021-02-23 16:16:36,609 INFO L276 IsEmpty]: Start isEmpty. Operand 231 states and 247 transitions. [2021-02-23 16:16:36,611 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 164 [2021-02-23 16:16:36,612 INFO L414 BasicCegarLoop]: Found error trace [2021-02-23 16:16:36,612 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] [2021-02-23 16:16:36,612 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-02-23 16:16:36,612 INFO L428 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-23 16:16:36,613 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-23 16:16:36,613 INFO L82 PathProgramCache]: Analyzing trace with hash -176561466, now seen corresponding path program 1 times [2021-02-23 16:16:36,613 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-23 16:16:36,614 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2126159681] [2021-02-23 16:16:36,614 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-23 16:16:36,617 INFO L218 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2021-02-23 16:16:36,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 16:16:36,718 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 16:16:36,718 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 16:16:36,722 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 16:16:36,723 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 16:16:36,727 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 16:16:36,727 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 16:16:36,753 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 16:16:36,754 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-23 16:16:36,759 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 16:16:36,760 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 16:16:37,058 WARN L202 SmtUtils]: Spent 280.00 ms on a formula simplification that was a NOOP. DAG size: 205 [2021-02-23 16:16:37,063 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-23 16:16:37,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 16:16:37,137 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 16:16:37,138 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 16:16:37,139 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 16:16:37,140 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-02-23 16:16:37,147 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2021-02-23 16:16:37,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 16:16:37,153 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 16:16:37,153 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 16:16:37,154 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2021-02-23 16:16:37,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 16:16:37,157 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 16:16:37,157 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 16:16:37,157 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2021-02-23 16:16:37,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 16:16:37,172 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 16:16:37,173 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 16:16:37,180 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 16:16:37,181 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-23 16:16:37,201 WARN L141 QuantifierPusher]: treesize reduction 22, result has 33.3 percent of original size [2021-02-23 16:16:37,202 WARN L147 QuantifierPusher]: treesize reduction 22, result has 33.3 percent of original size 11 [2021-02-23 16:16:37,219 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2021-02-23 16:16:37,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 16:16:37,222 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 16:16:37,223 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 16:16:37,235 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2021-02-23 16:16:37,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 16:16:37,239 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 16:16:37,240 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 16:16:37,240 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2021-02-23 16:16:37,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 16:16:37,243 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 16:16:37,244 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 16:16:37,245 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 150 [2021-02-23 16:16:37,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 16:16:37,247 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 16:16:37,248 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 16:16:37,288 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-23 16:16:37,289 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2126159681] [2021-02-23 16:16:37,289 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-23 16:16:37,289 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-02-23 16:16:37,290 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1916155768] [2021-02-23 16:16:37,290 INFO L460 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-02-23 16:16:37,290 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-02-23 16:16:37,291 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-02-23 16:16:37,291 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2021-02-23 16:16:37,291 INFO L87 Difference]: Start difference. First operand 231 states and 247 transitions. Second operand 10 states. [2021-02-23 16:16:37,913 WARN L202 SmtUtils]: Spent 315.00 ms on a formula simplification that was a NOOP. DAG size: 207 [2021-02-23 16:16:38,407 WARN L202 SmtUtils]: Spent 386.00 ms on a formula simplification that was a NOOP. DAG size: 210 [2021-02-23 16:16:38,790 WARN L202 SmtUtils]: Spent 360.00 ms on a formula simplification that was a NOOP. DAG size: 212 [2021-02-23 16:16:39,219 WARN L202 SmtUtils]: Spent 373.00 ms on a formula simplification that was a NOOP. DAG size: 209 [2021-02-23 16:16:39,637 WARN L202 SmtUtils]: Spent 385.00 ms on a formula simplification that was a NOOP. DAG size: 211 [2021-02-23 16:16:40,046 WARN L202 SmtUtils]: Spent 382.00 ms on a formula simplification that was a NOOP. DAG size: 209 [2021-02-23 16:16:41,524 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-23 16:16:41,524 INFO L93 Difference]: Finished difference Result 386 states and 438 transitions. [2021-02-23 16:16:41,525 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-02-23 16:16:41,525 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 163 [2021-02-23 16:16:41,527 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-23 16:16:41,536 INFO L225 Difference]: With dead ends: 386 [2021-02-23 16:16:41,536 INFO L226 Difference]: Without dead ends: 275 [2021-02-23 16:16:41,543 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 16 SyntacticMatches, 1 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 2.6s TimeCoverageRelationStatistics Valid=81, Invalid=191, Unknown=0, NotChecked=0, Total=272 [2021-02-23 16:16:41,544 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 275 states. [2021-02-23 16:16:41,634 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 275 to 231. [2021-02-23 16:16:41,634 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 231 states. [2021-02-23 16:16:41,636 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 231 states to 231 states and 246 transitions. [2021-02-23 16:16:41,636 INFO L78 Accepts]: Start accepts. Automaton has 231 states and 246 transitions. Word has length 163 [2021-02-23 16:16:41,637 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-23 16:16:41,637 INFO L480 AbstractCegarLoop]: Abstraction has 231 states and 246 transitions. [2021-02-23 16:16:41,637 INFO L481 AbstractCegarLoop]: Interpolant automaton has 10 states. [2021-02-23 16:16:41,637 INFO L276 IsEmpty]: Start isEmpty. Operand 231 states and 246 transitions. [2021-02-23 16:16:41,639 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 172 [2021-02-23 16:16:41,640 INFO L414 BasicCegarLoop]: Found error trace [2021-02-23 16:16:41,640 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-02-23 16:16:41,640 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-02-23 16:16:41,640 INFO L428 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-23 16:16:41,641 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-23 16:16:41,641 INFO L82 PathProgramCache]: Analyzing trace with hash 428306351, now seen corresponding path program 1 times [2021-02-23 16:16:41,641 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-23 16:16:41,642 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2046361671] [2021-02-23 16:16:41,642 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-23 16:16:41,645 INFO L218 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2021-02-23 16:16:41,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 16:16:41,721 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 16:16:41,721 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 16:16:41,730 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 16:16:41,731 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 16:16:41,732 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 16:16:41,732 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 16:16:41,733 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 16:16:41,733 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 16:16:41,734 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 16:16:41,734 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 16:16:41,735 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 16:16:41,736 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 16:16:42,058 WARN L202 SmtUtils]: Spent 311.00 ms on a formula simplification that was a NOOP. DAG size: 205 [2021-02-23 16:16:42,060 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-23 16:16:42,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 16:16:42,139 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 16:16:42,140 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 16:16:42,141 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 16:16:42,148 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 16:16:42,156 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2021-02-23 16:16:42,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 16:16:42,162 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 16:16:42,164 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 16:16:42,168 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2021-02-23 16:16:42,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 16:16:42,173 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 16:16:42,175 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 16:16:42,183 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2021-02-23 16:16:42,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 16:16:42,186 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 16:16:42,187 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 16:16:42,187 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2021-02-23 16:16:42,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 16:16:42,191 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 16:16:42,192 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 16:16:42,205 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2021-02-23 16:16:42,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 16:16:42,209 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 16:16:42,210 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 16:16:42,220 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2021-02-23 16:16:42,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 16:16:42,233 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 16:16:42,233 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 16:16:42,234 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 16:16:42,235 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-23 16:16:42,247 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-02-23 16:16:42,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 16:16:42,251 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 16:16:42,252 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 16:16:42,253 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2021-02-23 16:16:42,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 16:16:42,256 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 16:16:42,257 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 16:16:42,258 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 158 [2021-02-23 16:16:42,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 16:16:42,262 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 16:16:42,262 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 16:16:42,335 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-23 16:16:42,336 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2046361671] [2021-02-23 16:16:42,336 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-23 16:16:42,336 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-02-23 16:16:42,336 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2078329433] [2021-02-23 16:16:42,337 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-02-23 16:16:42,337 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-02-23 16:16:42,338 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-02-23 16:16:42,338 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2021-02-23 16:16:42,338 INFO L87 Difference]: Start difference. First operand 231 states and 246 transitions. Second operand 7 states. [2021-02-23 16:16:43,041 WARN L202 SmtUtils]: Spent 334.00 ms on a formula simplification that was a NOOP. DAG size: 207 [2021-02-23 16:16:44,837 WARN L202 SmtUtils]: Spent 349.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2021-02-23 16:16:45,480 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-23 16:16:45,481 INFO L93 Difference]: Finished difference Result 516 states and 593 transitions. [2021-02-23 16:16:45,482 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-02-23 16:16:45,482 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 171 [2021-02-23 16:16:45,483 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-23 16:16:45,486 INFO L225 Difference]: With dead ends: 516 [2021-02-23 16:16:45,486 INFO L226 Difference]: Without dead ends: 405 [2021-02-23 16:16:45,487 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 23 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=64, Invalid=146, Unknown=0, NotChecked=0, Total=210 [2021-02-23 16:16:45,488 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 405 states. [2021-02-23 16:16:45,622 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 405 to 334. [2021-02-23 16:16:45,622 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 334 states. [2021-02-23 16:16:45,624 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 334 states to 334 states and 361 transitions. [2021-02-23 16:16:45,625 INFO L78 Accepts]: Start accepts. Automaton has 334 states and 361 transitions. Word has length 171 [2021-02-23 16:16:45,625 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-23 16:16:45,625 INFO L480 AbstractCegarLoop]: Abstraction has 334 states and 361 transitions. [2021-02-23 16:16:45,625 INFO L481 AbstractCegarLoop]: Interpolant automaton has 7 states. [2021-02-23 16:16:45,625 INFO L276 IsEmpty]: Start isEmpty. Operand 334 states and 361 transitions. [2021-02-23 16:16:45,628 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 196 [2021-02-23 16:16:45,629 INFO L414 BasicCegarLoop]: Found error trace [2021-02-23 16:16:45,629 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-02-23 16:16:45,629 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-02-23 16:16:45,629 INFO L428 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-23 16:16:45,630 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-23 16:16:45,630 INFO L82 PathProgramCache]: Analyzing trace with hash -1615112680, now seen corresponding path program 1 times [2021-02-23 16:16:45,630 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-23 16:16:45,630 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [670393914] [2021-02-23 16:16:45,631 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-23 16:16:45,633 INFO L218 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2021-02-23 16:16:45,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 16:16:45,703 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 16:16:45,704 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 16:16:45,707 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 16:16:45,708 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 16:16:45,708 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 16:16:45,709 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 16:16:45,710 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 16:16:45,710 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 16:16:45,711 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 16:16:45,711 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 16:16:45,715 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 16:16:45,716 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 16:16:45,721 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 16:16:45,722 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 16:16:46,039 WARN L202 SmtUtils]: Spent 300.00 ms on a formula simplification that was a NOOP. DAG size: 205 [2021-02-23 16:16:46,048 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-23 16:16:46,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 16:16:46,120 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 16:16:46,121 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 16:16:46,122 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 16:16:46,122 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 16:16:46,128 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2021-02-23 16:16:46,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 16:16:46,131 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 16:16:46,131 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 16:16:46,132 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2021-02-23 16:16:46,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 16:16:46,135 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 16:16:46,136 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 16:16:46,136 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2021-02-23 16:16:46,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 16:16:46,139 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 16:16:46,140 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 16:16:46,140 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2021-02-23 16:16:46,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 16:16:46,143 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 16:16:46,143 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 16:16:46,152 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2021-02-23 16:16:46,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 16:16:46,155 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 16:16:46,156 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 16:16:46,166 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2021-02-23 16:16:46,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 16:16:46,172 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 16:16:46,173 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 16:16:46,173 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-02-23 16:16:46,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 16:16:46,177 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 16:16:46,177 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 16:16:46,178 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-02-23 16:16:46,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 16:16:46,180 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 16:16:46,181 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 16:16:46,181 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2021-02-23 16:16:46,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 16:16:46,183 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 16:16:46,184 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 16:16:46,185 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 172 [2021-02-23 16:16:46,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 16:16:46,188 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 16:16:46,189 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 16:16:46,189 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 16:16:46,190 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 16:16:46,201 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 16:16:46,201 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 16:16:46,212 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 182 [2021-02-23 16:16:46,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 16:16:46,215 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 16:16:46,215 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 16:16:46,266 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-23 16:16:46,266 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [670393914] [2021-02-23 16:16:46,266 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-23 16:16:46,267 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-02-23 16:16:46,267 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [951650691] [2021-02-23 16:16:46,267 INFO L460 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-02-23 16:16:46,267 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-02-23 16:16:46,268 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-02-23 16:16:46,268 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2021-02-23 16:16:46,268 INFO L87 Difference]: Start difference. First operand 334 states and 361 transitions. Second operand 10 states. [2021-02-23 16:16:46,913 WARN L202 SmtUtils]: Spent 299.00 ms on a formula simplification that was a NOOP. DAG size: 207 [2021-02-23 16:16:48,647 WARN L202 SmtUtils]: Spent 361.00 ms on a formula simplification that was a NOOP. DAG size: 209 [2021-02-23 16:16:49,060 WARN L202 SmtUtils]: Spent 369.00 ms on a formula simplification that was a NOOP. DAG size: 211 [2021-02-23 16:16:49,471 WARN L202 SmtUtils]: Spent 346.00 ms on a formula simplification that was a NOOP. DAG size: 209 [2021-02-23 16:16:49,877 WARN L202 SmtUtils]: Spent 367.00 ms on a formula simplification that was a NOOP. DAG size: 211 [2021-02-23 16:16:50,251 WARN L202 SmtUtils]: Spent 353.00 ms on a formula simplification that was a NOOP. DAG size: 207 [2021-02-23 16:16:50,627 WARN L202 SmtUtils]: Spent 353.00 ms on a formula simplification that was a NOOP. DAG size: 209 [2021-02-23 16:16:51,004 WARN L202 SmtUtils]: Spent 358.00 ms on a formula simplification that was a NOOP. DAG size: 209 [2021-02-23 16:16:51,530 WARN L202 SmtUtils]: Spent 354.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2021-02-23 16:16:52,572 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-23 16:16:52,572 INFO L93 Difference]: Finished difference Result 826 states and 967 transitions. [2021-02-23 16:16:52,572 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2021-02-23 16:16:52,573 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 195 [2021-02-23 16:16:52,573 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-23 16:16:52,577 INFO L225 Difference]: With dead ends: 826 [2021-02-23 16:16:52,577 INFO L226 Difference]: Without dead ends: 612 [2021-02-23 16:16:52,579 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 53 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 86 ImplicationChecksByTransitivity, 3.7s TimeCoverageRelationStatistics Valid=159, Invalid=441, Unknown=0, NotChecked=0, Total=600 [2021-02-23 16:16:52,580 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 612 states. [2021-02-23 16:16:52,787 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 612 to 502. [2021-02-23 16:16:52,787 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 502 states. [2021-02-23 16:16:52,790 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 502 states to 502 states and 548 transitions. [2021-02-23 16:16:52,791 INFO L78 Accepts]: Start accepts. Automaton has 502 states and 548 transitions. Word has length 195 [2021-02-23 16:16:52,791 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-23 16:16:52,791 INFO L480 AbstractCegarLoop]: Abstraction has 502 states and 548 transitions. [2021-02-23 16:16:52,791 INFO L481 AbstractCegarLoop]: Interpolant automaton has 10 states. [2021-02-23 16:16:52,792 INFO L276 IsEmpty]: Start isEmpty. Operand 502 states and 548 transitions. [2021-02-23 16:16:52,795 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 201 [2021-02-23 16:16:52,795 INFO L414 BasicCegarLoop]: Found error trace [2021-02-23 16:16:52,795 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-02-23 16:16:52,795 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-02-23 16:16:52,796 INFO L428 AbstractCegarLoop]: === Iteration 6 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-23 16:16:52,796 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-23 16:16:52,796 INFO L82 PathProgramCache]: Analyzing trace with hash 236738681, now seen corresponding path program 1 times [2021-02-23 16:16:52,797 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-23 16:16:52,797 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [262439606] [2021-02-23 16:16:52,797 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-23 16:16:52,800 INFO L218 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2021-02-23 16:16:52,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 16:16:52,907 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 16:16:52,908 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 16:16:52,910 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 16:16:52,911 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 16:16:52,911 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 16:16:52,912 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 16:16:52,912 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 16:16:52,913 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 16:16:52,913 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 16:16:52,913 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 16:16:52,914 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 16:16:52,914 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 16:16:52,915 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 16:16:52,918 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 16:16:52,922 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 16:16:52,923 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 16:16:52,928 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 16:16:52,928 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 16:16:53,238 WARN L202 SmtUtils]: Spent 295.00 ms on a formula simplification that was a NOOP. DAG size: 205 [2021-02-23 16:16:53,240 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-23 16:16:53,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 16:16:53,278 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 16:16:53,279 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 16:16:53,279 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 16:16:53,280 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 16:16:53,285 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2021-02-23 16:16:53,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 16:16:53,287 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 16:16:53,288 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 16:16:53,288 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2021-02-23 16:16:53,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 16:16:53,290 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 16:16:53,291 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 16:16:53,291 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2021-02-23 16:16:53,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 16:16:53,293 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 16:16:53,294 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 16:16:53,294 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2021-02-23 16:16:53,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 16:16:53,296 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 16:16:53,297 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 16:16:53,305 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2021-02-23 16:16:53,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 16:16:53,308 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 16:16:53,308 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 16:16:53,318 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2021-02-23 16:16:53,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 16:16:53,321 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 16:16:53,321 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 16:16:53,331 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2021-02-23 16:16:53,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 16:16:53,337 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 16:16:53,337 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 16:16:53,339 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 16:16:53,341 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 16:16:53,341 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-02-23 16:16:53,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 16:16:53,345 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 16:16:53,346 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 16:16:53,346 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-02-23 16:16:53,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 16:16:53,348 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 16:16:53,348 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 16:16:53,349 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2021-02-23 16:16:53,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 16:16:53,351 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 16:16:53,352 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 16:16:53,353 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 177 [2021-02-23 16:16:53,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 16:16:53,356 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 16:16:53,357 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 16:16:53,357 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 187 [2021-02-23 16:16:53,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 16:16:53,360 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 16:16:53,361 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 16:16:53,361 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 16:16:53,362 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 16:16:53,372 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 16:16:53,373 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 16:16:53,450 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-23 16:16:53,450 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [262439606] [2021-02-23 16:16:53,450 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-23 16:16:53,451 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-02-23 16:16:53,451 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [534926602] [2021-02-23 16:16:53,451 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-02-23 16:16:53,452 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-02-23 16:16:53,452 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-02-23 16:16:53,452 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2021-02-23 16:16:53,452 INFO L87 Difference]: Start difference. First operand 502 states and 548 transitions. Second operand 11 states. [2021-02-23 16:16:54,116 WARN L202 SmtUtils]: Spent 343.00 ms on a formula simplification that was a NOOP. DAG size: 207 [2021-02-23 16:16:55,879 WARN L202 SmtUtils]: Spent 355.00 ms on a formula simplification that was a NOOP. DAG size: 209 [2021-02-23 16:16:56,255 WARN L202 SmtUtils]: Spent 354.00 ms on a formula simplification that was a NOOP. DAG size: 207 [2021-02-23 16:16:56,653 WARN L202 SmtUtils]: Spent 374.00 ms on a formula simplification that was a NOOP. DAG size: 211 [2021-02-23 16:16:57,040 WARN L202 SmtUtils]: Spent 361.00 ms on a formula simplification that was a NOOP. DAG size: 209 [2021-02-23 16:16:57,489 WARN L202 SmtUtils]: Spent 356.00 ms on a formula simplification that was a NOOP. DAG size: 209 [2021-02-23 16:16:57,931 WARN L202 SmtUtils]: Spent 364.00 ms on a formula simplification that was a NOOP. DAG size: 211 [2021-02-23 16:16:58,317 WARN L202 SmtUtils]: Spent 349.00 ms on a formula simplification that was a NOOP. DAG size: 209 [2021-02-23 16:16:58,722 WARN L202 SmtUtils]: Spent 322.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2021-02-23 16:16:59,801 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-23 16:16:59,802 INFO L93 Difference]: Finished difference Result 1055 states and 1222 transitions. [2021-02-23 16:16:59,802 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2021-02-23 16:16:59,802 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 200 [2021-02-23 16:16:59,803 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-23 16:16:59,808 INFO L225 Difference]: With dead ends: 1055 [2021-02-23 16:16:59,808 INFO L226 Difference]: Without dead ends: 673 [2021-02-23 16:16:59,810 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 65 GetRequests, 35 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 175 ImplicationChecksByTransitivity, 3.8s TimeCoverageRelationStatistics Valid=268, Invalid=724, Unknown=0, NotChecked=0, Total=992 [2021-02-23 16:16:59,812 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 673 states. [2021-02-23 16:17:00,037 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 673 to 500. [2021-02-23 16:17:00,037 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 500 states. [2021-02-23 16:17:00,040 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 500 states to 500 states and 544 transitions. [2021-02-23 16:17:00,041 INFO L78 Accepts]: Start accepts. Automaton has 500 states and 544 transitions. Word has length 200 [2021-02-23 16:17:00,041 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-23 16:17:00,042 INFO L480 AbstractCegarLoop]: Abstraction has 500 states and 544 transitions. [2021-02-23 16:17:00,042 INFO L481 AbstractCegarLoop]: Interpolant automaton has 11 states. [2021-02-23 16:17:00,042 INFO L276 IsEmpty]: Start isEmpty. Operand 500 states and 544 transitions. [2021-02-23 16:17:00,045 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 202 [2021-02-23 16:17:00,045 INFO L414 BasicCegarLoop]: Found error trace [2021-02-23 16:17:00,046 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-02-23 16:17:00,046 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-02-23 16:17:00,046 INFO L428 AbstractCegarLoop]: === Iteration 7 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-23 16:17:00,047 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-23 16:17:00,047 INFO L82 PathProgramCache]: Analyzing trace with hash 1464072742, now seen corresponding path program 1 times [2021-02-23 16:17:00,047 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-23 16:17:00,047 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [51230661] [2021-02-23 16:17:00,047 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-23 16:17:00,050 INFO L218 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2021-02-23 16:17:00,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 16:17:00,104 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 16:17:00,104 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 16:17:00,105 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 16:17:00,105 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 16:17:00,381 WARN L202 SmtUtils]: Spent 270.00 ms on a formula simplification that was a NOOP. DAG size: 205 [2021-02-23 16:17:00,382 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-23 16:17:00,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 16:17:00,410 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 16:17:00,411 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 16:17:00,416 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2021-02-23 16:17:00,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 16:17:00,418 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 16:17:00,419 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 16:17:00,419 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2021-02-23 16:17:00,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 16:17:00,421 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 16:17:00,421 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 16:17:00,422 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2021-02-23 16:17:00,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 16:17:00,424 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 16:17:00,424 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 16:17:00,425 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2021-02-23 16:17:00,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 16:17:00,427 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 16:17:00,427 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 16:17:00,434 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2021-02-23 16:17:00,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 16:17:00,437 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 16:17:00,437 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 16:17:00,445 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2021-02-23 16:17:00,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 16:17:00,447 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 16:17:00,448 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 16:17:00,456 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2021-02-23 16:17:00,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 16:17:00,463 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 16:17:00,463 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 16:17:00,464 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 16:17:00,464 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 16:17:00,473 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 16:17:00,474 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 16:17:00,483 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 16:17:00,484 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 16:17:00,484 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-02-23 16:17:00,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 16:17:00,492 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 16:17:00,492 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 16:17:00,494 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 16:17:00,494 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-23 16:17:00,507 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 16:17:00,508 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-23 16:17:00,527 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 16:17:00,527 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-23 16:17:00,543 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-02-23 16:17:00,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 16:17:00,545 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 16:17:00,546 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 16:17:00,547 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2021-02-23 16:17:00,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 16:17:00,549 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 16:17:00,549 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 16:17:00,550 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 178 [2021-02-23 16:17:00,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 16:17:00,552 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 16:17:00,553 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 16:17:00,553 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 188 [2021-02-23 16:17:00,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 16:17:00,555 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 16:17:00,556 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 16:17:00,599 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-23 16:17:00,599 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [51230661] [2021-02-23 16:17:00,600 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-23 16:17:00,600 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-02-23 16:17:00,600 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1269307601] [2021-02-23 16:17:00,600 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-02-23 16:17:00,601 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-02-23 16:17:00,601 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-02-23 16:17:00,601 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2021-02-23 16:17:00,601 INFO L87 Difference]: Start difference. First operand 500 states and 544 transitions. Second operand 11 states. [2021-02-23 16:17:02,055 WARN L202 SmtUtils]: Spent 359.00 ms on a formula simplification that was a NOOP. DAG size: 209 [2021-02-23 16:17:02,444 WARN L202 SmtUtils]: Spent 364.00 ms on a formula simplification that was a NOOP. DAG size: 212 [2021-02-23 16:17:02,837 WARN L202 SmtUtils]: Spent 370.00 ms on a formula simplification that was a NOOP. DAG size: 215 [2021-02-23 16:17:03,204 WARN L202 SmtUtils]: Spent 320.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2021-02-23 16:17:03,592 WARN L202 SmtUtils]: Spent 342.00 ms on a formula simplification that was a NOOP. DAG size: 210 [2021-02-23 16:17:03,940 WARN L202 SmtUtils]: Spent 321.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2021-02-23 16:17:05,140 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-23 16:17:05,140 INFO L93 Difference]: Finished difference Result 1063 states and 1237 transitions. [2021-02-23 16:17:05,145 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2021-02-23 16:17:05,145 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 201 [2021-02-23 16:17:05,146 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-23 16:17:05,150 INFO L225 Difference]: With dead ends: 1063 [2021-02-23 16:17:05,150 INFO L226 Difference]: Without dead ends: 683 [2021-02-23 16:17:05,152 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 44 ImplicationChecksByTransitivity, 2.5s TimeCoverageRelationStatistics Valid=121, Invalid=299, Unknown=0, NotChecked=0, Total=420 [2021-02-23 16:17:05,153 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 683 states. [2021-02-23 16:17:05,369 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 683 to 516. [2021-02-23 16:17:05,369 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 516 states. [2021-02-23 16:17:05,372 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 516 states to 516 states and 560 transitions. [2021-02-23 16:17:05,374 INFO L78 Accepts]: Start accepts. Automaton has 516 states and 560 transitions. Word has length 201 [2021-02-23 16:17:05,374 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-23 16:17:05,375 INFO L480 AbstractCegarLoop]: Abstraction has 516 states and 560 transitions. [2021-02-23 16:17:05,375 INFO L481 AbstractCegarLoop]: Interpolant automaton has 11 states. [2021-02-23 16:17:05,375 INFO L276 IsEmpty]: Start isEmpty. Operand 516 states and 560 transitions. [2021-02-23 16:17:05,382 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 202 [2021-02-23 16:17:05,382 INFO L414 BasicCegarLoop]: Found error trace [2021-02-23 16:17:05,382 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-02-23 16:17:05,382 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-02-23 16:17:05,383 INFO L428 AbstractCegarLoop]: === Iteration 8 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-23 16:17:05,383 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-23 16:17:05,383 INFO L82 PathProgramCache]: Analyzing trace with hash 324278918, now seen corresponding path program 1 times [2021-02-23 16:17:05,383 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-23 16:17:05,383 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1798211702] [2021-02-23 16:17:05,384 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-23 16:17:05,387 INFO L218 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2021-02-23 16:17:05,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 16:17:05,455 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 16:17:05,456 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 16:17:05,456 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 16:17:05,457 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 16:17:05,459 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 16:17:05,460 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 16:17:05,463 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 16:17:05,468 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 16:17:05,469 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 16:17:05,469 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 16:17:05,761 WARN L202 SmtUtils]: Spent 279.00 ms on a formula simplification that was a NOOP. DAG size: 205 [2021-02-23 16:17:05,762 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-23 16:17:05,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 16:17:05,799 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 16:17:05,800 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 16:17:05,804 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2021-02-23 16:17:05,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 16:17:05,806 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 16:17:05,806 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 16:17:05,806 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2021-02-23 16:17:05,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 16:17:05,808 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 16:17:05,809 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 16:17:05,809 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2021-02-23 16:17:05,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 16:17:05,814 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 16:17:05,815 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 16:17:05,815 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 16:17:05,816 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-23 16:17:05,827 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 16:17:05,827 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-23 16:17:05,839 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2021-02-23 16:17:05,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 16:17:05,841 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 16:17:05,841 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 16:17:05,851 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2021-02-23 16:17:05,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 16:17:05,855 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 16:17:05,855 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 16:17:05,866 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2021-02-23 16:17:05,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 16:17:05,868 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 16:17:05,868 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 16:17:05,880 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2021-02-23 16:17:05,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 16:17:05,887 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 16:17:05,887 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 16:17:05,887 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 16:17:05,888 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 16:17:05,888 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-02-23 16:17:05,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 16:17:05,893 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 16:17:05,893 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 16:17:05,894 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 16:17:05,898 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 16:17:05,911 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 16:17:05,911 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 16:17:05,924 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 16:17:05,925 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 16:17:05,925 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-02-23 16:17:05,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 16:17:05,929 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 16:17:05,930 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 16:17:05,930 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 16:17:05,931 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 16:17:05,946 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 16:17:05,947 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 16:17:05,962 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2021-02-23 16:17:05,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 16:17:05,964 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 16:17:05,965 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 16:17:05,966 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 178 [2021-02-23 16:17:05,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 16:17:05,968 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 16:17:05,969 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 16:17:05,969 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 188 [2021-02-23 16:17:05,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 16:17:05,971 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 16:17:05,971 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 16:17:06,017 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-23 16:17:06,017 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1798211702] [2021-02-23 16:17:06,017 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-23 16:17:06,017 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2021-02-23 16:17:06,018 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1748662372] [2021-02-23 16:17:06,018 INFO L460 AbstractCegarLoop]: Interpolant automaton has 14 states [2021-02-23 16:17:06,018 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-02-23 16:17:06,019 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2021-02-23 16:17:06,019 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=154, Unknown=0, NotChecked=0, Total=182 [2021-02-23 16:17:06,019 INFO L87 Difference]: Start difference. First operand 516 states and 560 transitions. Second operand 14 states. [2021-02-23 16:17:06,779 WARN L202 SmtUtils]: Spent 335.00 ms on a formula simplification that was a NOOP. DAG size: 209 [2021-02-23 16:17:07,165 WARN L202 SmtUtils]: Spent 358.00 ms on a formula simplification that was a NOOP. DAG size: 212 [2021-02-23 16:17:07,560 WARN L202 SmtUtils]: Spent 345.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2021-02-23 16:17:07,946 WARN L202 SmtUtils]: Spent 354.00 ms on a formula simplification that was a NOOP. DAG size: 210 [2021-02-23 16:17:08,327 WARN L202 SmtUtils]: Spent 347.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2021-02-23 16:17:09,307 WARN L202 SmtUtils]: Spent 335.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2021-02-23 16:17:09,684 WARN L202 SmtUtils]: Spent 341.00 ms on a formula simplification that was a NOOP. DAG size: 210 [2021-02-23 16:17:10,072 WARN L202 SmtUtils]: Spent 329.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2021-02-23 16:17:10,459 WARN L202 SmtUtils]: Spent 332.00 ms on a formula simplification that was a NOOP. DAG size: 210 [2021-02-23 16:17:10,819 WARN L202 SmtUtils]: Spent 328.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2021-02-23 16:17:12,277 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-23 16:17:12,277 INFO L93 Difference]: Finished difference Result 1101 states and 1291 transitions. [2021-02-23 16:17:12,278 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2021-02-23 16:17:12,278 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 201 [2021-02-23 16:17:12,279 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-23 16:17:12,283 INFO L225 Difference]: With dead ends: 1101 [2021-02-23 16:17:12,283 INFO L226 Difference]: Without dead ends: 705 [2021-02-23 16:17:12,285 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 32 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 89 ImplicationChecksByTransitivity, 4.0s TimeCoverageRelationStatistics Valid=172, Invalid=584, Unknown=0, NotChecked=0, Total=756 [2021-02-23 16:17:12,286 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 705 states. [2021-02-23 16:17:12,531 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 705 to 528. [2021-02-23 16:17:12,531 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 528 states. [2021-02-23 16:17:12,540 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 528 states to 528 states and 572 transitions. [2021-02-23 16:17:12,541 INFO L78 Accepts]: Start accepts. Automaton has 528 states and 572 transitions. Word has length 201 [2021-02-23 16:17:12,541 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-23 16:17:12,541 INFO L480 AbstractCegarLoop]: Abstraction has 528 states and 572 transitions. [2021-02-23 16:17:12,541 INFO L481 AbstractCegarLoop]: Interpolant automaton has 14 states. [2021-02-23 16:17:12,541 INFO L276 IsEmpty]: Start isEmpty. Operand 528 states and 572 transitions. [2021-02-23 16:17:12,546 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 202 [2021-02-23 16:17:12,546 INFO L414 BasicCegarLoop]: Found error trace [2021-02-23 16:17:12,546 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-02-23 16:17:12,546 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-02-23 16:17:12,547 INFO L428 AbstractCegarLoop]: === Iteration 9 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-23 16:17:12,547 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-23 16:17:12,547 INFO L82 PathProgramCache]: Analyzing trace with hash -1806843773, now seen corresponding path program 1 times [2021-02-23 16:17:12,547 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-23 16:17:12,547 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1290383130] [2021-02-23 16:17:12,548 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-23 16:17:12,551 INFO L218 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2021-02-23 16:17:12,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 16:17:12,616 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 16:17:12,616 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 16:17:12,619 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 16:17:12,619 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 16:17:12,620 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 16:17:12,620 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 16:17:12,621 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 16:17:12,621 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 16:17:12,622 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 16:17:12,622 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-02-23 16:17:12,623 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 16:17:12,623 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 16:17:12,935 WARN L202 SmtUtils]: Spent 303.00 ms on a formula simplification that was a NOOP. DAG size: 205 [2021-02-23 16:17:12,936 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-23 16:17:12,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 16:17:12,974 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 16:17:12,975 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 16:17:12,975 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 16:17:12,976 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-02-23 16:17:12,980 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2021-02-23 16:17:12,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 16:17:12,982 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 16:17:12,984 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 16:17:12,984 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2021-02-23 16:17:12,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 16:17:12,986 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 16:17:12,986 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 16:17:12,986 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2021-02-23 16:17:12,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 16:17:12,988 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 16:17:12,989 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 16:17:12,989 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2021-02-23 16:17:12,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 16:17:12,991 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 16:17:12,991 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 16:17:12,998 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2021-02-23 16:17:12,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 16:17:13,005 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 16:17:13,006 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 16:17:13,013 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2021-02-23 16:17:13,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 16:17:13,016 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 16:17:13,016 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 16:17:13,025 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2021-02-23 16:17:13,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 16:17:13,034 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 16:17:13,034 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 16:17:13,035 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 16:17:13,035 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 16:17:13,043 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-02-23 16:17:13,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 16:17:13,048 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 16:17:13,049 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 16:17:13,053 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 16:17:13,054 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-23 16:17:13,062 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-02-23 16:17:13,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 16:17:13,065 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 16:17:13,065 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 16:17:13,066 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 16:17:13,066 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-23 16:17:13,075 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2021-02-23 16:17:13,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 16:17:13,078 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 16:17:13,078 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 16:17:13,080 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 178 [2021-02-23 16:17:13,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 16:17:13,081 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 16:17:13,082 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 16:17:13,082 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 188 [2021-02-23 16:17:13,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 16:17:13,084 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 16:17:13,084 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 16:17:13,135 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-23 16:17:13,136 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1290383130] [2021-02-23 16:17:13,136 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-23 16:17:13,136 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-02-23 16:17:13,136 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2124605947] [2021-02-23 16:17:13,137 INFO L460 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-02-23 16:17:13,137 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-02-23 16:17:13,137 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-02-23 16:17:13,137 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2021-02-23 16:17:13,137 INFO L87 Difference]: Start difference. First operand 528 states and 572 transitions. Second operand 8 states. [2021-02-23 16:17:13,798 WARN L202 SmtUtils]: Spent 342.00 ms on a formula simplification that was a NOOP. DAG size: 207 [2021-02-23 16:17:14,569 WARN L202 SmtUtils]: Spent 338.00 ms on a formula simplification that was a NOOP. DAG size: 207 [2021-02-23 16:17:17,378 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-23 16:17:17,378 INFO L93 Difference]: Finished difference Result 1562 states and 1872 transitions. [2021-02-23 16:17:17,379 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2021-02-23 16:17:17,379 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 201 [2021-02-23 16:17:17,379 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-23 16:17:17,387 INFO L225 Difference]: With dead ends: 1562 [2021-02-23 16:17:17,387 INFO L226 Difference]: Without dead ends: 1154 [2021-02-23 16:17:17,390 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 36 SyntacticMatches, 2 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 138 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=144, Invalid=408, Unknown=0, NotChecked=0, Total=552 [2021-02-23 16:17:17,392 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1154 states. [2021-02-23 16:17:17,808 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1154 to 922. [2021-02-23 16:17:17,808 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 922 states. [2021-02-23 16:17:17,813 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 922 states to 922 states and 1028 transitions. [2021-02-23 16:17:17,813 INFO L78 Accepts]: Start accepts. Automaton has 922 states and 1028 transitions. Word has length 201 [2021-02-23 16:17:17,814 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-23 16:17:17,814 INFO L480 AbstractCegarLoop]: Abstraction has 922 states and 1028 transitions. [2021-02-23 16:17:17,814 INFO L481 AbstractCegarLoop]: Interpolant automaton has 8 states. [2021-02-23 16:17:17,814 INFO L276 IsEmpty]: Start isEmpty. Operand 922 states and 1028 transitions. [2021-02-23 16:17:17,816 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 207 [2021-02-23 16:17:17,817 INFO L414 BasicCegarLoop]: Found error trace [2021-02-23 16:17:17,817 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-02-23 16:17:17,817 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-02-23 16:17:17,817 INFO L428 AbstractCegarLoop]: === Iteration 10 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-23 16:17:17,818 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-23 16:17:17,818 INFO L82 PathProgramCache]: Analyzing trace with hash -1911010786, now seen corresponding path program 1 times [2021-02-23 16:17:17,818 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-23 16:17:17,818 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1622561294] [2021-02-23 16:17:17,818 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-23 16:17:17,821 INFO L218 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2021-02-23 16:17:17,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 16:17:17,879 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 16:17:17,880 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 16:17:17,880 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 16:17:17,881 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 16:17:17,883 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 16:17:17,884 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 16:17:17,884 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 16:17:17,885 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 16:17:17,885 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 16:17:17,886 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 16:17:17,886 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 16:17:17,886 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 16:17:18,208 WARN L202 SmtUtils]: Spent 312.00 ms on a formula simplification that was a NOOP. DAG size: 205 [2021-02-23 16:17:18,209 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-23 16:17:18,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 16:17:18,233 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 16:17:18,234 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 16:17:18,238 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2021-02-23 16:17:18,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 16:17:18,240 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 16:17:18,241 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 16:17:18,241 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2021-02-23 16:17:18,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 16:17:18,242 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 16:17:18,243 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 16:17:18,243 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2021-02-23 16:17:18,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 16:17:18,245 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 16:17:18,246 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 16:17:18,246 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2021-02-23 16:17:18,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 16:17:18,247 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 16:17:18,248 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 16:17:18,255 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2021-02-23 16:17:18,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 16:17:18,259 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 16:17:18,261 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 16:17:18,269 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2021-02-23 16:17:18,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 16:17:18,271 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 16:17:18,272 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 16:17:18,280 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2021-02-23 16:17:18,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 16:17:18,283 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 16:17:18,283 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 16:17:18,292 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2021-02-23 16:17:18,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 16:17:18,298 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 16:17:18,299 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 16:17:18,299 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-02-23 16:17:18,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 16:17:18,302 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 16:17:18,302 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 16:17:18,302 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-02-23 16:17:18,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 16:17:18,304 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 16:17:18,305 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 16:17:18,305 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2021-02-23 16:17:18,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 16:17:18,307 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 16:17:18,307 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 16:17:18,308 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 183 [2021-02-23 16:17:18,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 16:17:18,310 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 16:17:18,311 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 16:17:18,311 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 193 [2021-02-23 16:17:18,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 16:17:18,313 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 16:17:18,313 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 16:17:18,360 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-23 16:17:18,360 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1622561294] [2021-02-23 16:17:18,361 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-23 16:17:18,361 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-02-23 16:17:18,361 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [601150236] [2021-02-23 16:17:18,361 INFO L460 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-02-23 16:17:18,362 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-02-23 16:17:18,362 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-02-23 16:17:18,362 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2021-02-23 16:17:18,362 INFO L87 Difference]: Start difference. First operand 922 states and 1028 transitions. Second operand 8 states. [2021-02-23 16:17:18,997 WARN L202 SmtUtils]: Spent 333.00 ms on a formula simplification that was a NOOP. DAG size: 207 [2021-02-23 16:17:21,945 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-23 16:17:21,945 INFO L93 Difference]: Finished difference Result 1764 states and 2105 transitions. [2021-02-23 16:17:21,946 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2021-02-23 16:17:21,946 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 206 [2021-02-23 16:17:21,946 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-23 16:17:21,958 INFO L225 Difference]: With dead ends: 1764 [2021-02-23 16:17:21,958 INFO L226 Difference]: Without dead ends: 1761 [2021-02-23 16:17:21,960 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 35 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 149 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=175, Invalid=475, Unknown=0, NotChecked=0, Total=650 [2021-02-23 16:17:21,962 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1761 states. [2021-02-23 16:17:22,565 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1761 to 1425. [2021-02-23 16:17:22,565 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1425 states. [2021-02-23 16:17:22,572 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1425 states to 1425 states and 1604 transitions. [2021-02-23 16:17:22,573 INFO L78 Accepts]: Start accepts. Automaton has 1425 states and 1604 transitions. Word has length 206 [2021-02-23 16:17:22,573 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-23 16:17:22,573 INFO L480 AbstractCegarLoop]: Abstraction has 1425 states and 1604 transitions. [2021-02-23 16:17:22,573 INFO L481 AbstractCegarLoop]: Interpolant automaton has 8 states. [2021-02-23 16:17:22,574 INFO L276 IsEmpty]: Start isEmpty. Operand 1425 states and 1604 transitions. [2021-02-23 16:17:22,578 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 266 [2021-02-23 16:17:22,578 INFO L414 BasicCegarLoop]: Found error trace [2021-02-23 16:17:22,579 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-02-23 16:17:22,579 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2021-02-23 16:17:22,579 INFO L428 AbstractCegarLoop]: === Iteration 11 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-23 16:17:22,579 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-23 16:17:22,580 INFO L82 PathProgramCache]: Analyzing trace with hash 1779892767, now seen corresponding path program 1 times [2021-02-23 16:17:22,580 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-23 16:17:22,580 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [140056170] [2021-02-23 16:17:22,580 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-23 16:17:22,666 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 6 [2021-02-23 16:17:23,027 WARN L202 SmtUtils]: Spent 267.00 ms on a formula simplification. DAG size of input: 119 DAG size of output: 105 [2021-02-23 16:17:23,034 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 16:17:23,038 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 183 [2021-02-23 16:17:23,311 WARN L202 SmtUtils]: Spent 253.00 ms on a formula simplification. DAG size of input: 119 DAG size of output: 105 [2021-02-23 16:17:23,316 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 16:17:23,319 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 183 [2021-02-23 16:17:23,337 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 16:17:23,337 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 16:17:23,357 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 16:17:23,357 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 16:17:23,375 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 16:17:23,376 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 16:17:23,394 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 16:17:23,395 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 16:17:23,673 WARN L202 SmtUtils]: Spent 263.00 ms on a formula simplification. DAG size of input: 119 DAG size of output: 105 [2021-02-23 16:17:23,693 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 16:17:23,697 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 185 [2021-02-23 16:17:23,720 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 16:17:23,720 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 16:17:23,737 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 16:17:23,737 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 16:17:23,751 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 16:17:23,752 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 16:17:23,768 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 16:17:23,769 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 16:17:23,784 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 16:17:23,784 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 16:17:24,060 WARN L202 SmtUtils]: Spent 262.00 ms on a formula simplification. DAG size of input: 119 DAG size of output: 104 [2021-02-23 16:17:24,067 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 16:17:24,072 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 175 [2021-02-23 16:17:24,094 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 16:17:24,094 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 16:17:24,409 WARN L202 SmtUtils]: Spent 291.00 ms on a formula simplification. DAG size of input: 119 DAG size of output: 105 [2021-02-23 16:17:24,416 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 16:17:24,419 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 179 [2021-02-23 16:17:24,732 WARN L202 SmtUtils]: Spent 297.00 ms on a formula simplification. DAG size of input: 119 DAG size of output: 105 [2021-02-23 16:17:24,743 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 16:17:24,747 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 183 [2021-02-23 16:17:24,770 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 16:17:24,770 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 16:17:24,786 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 16:17:24,786 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 16:17:24,805 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 16:17:24,806 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 16:17:24,822 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 16:17:24,823 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 16:17:24,836 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 16:17:24,837 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 16:17:24,853 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 16:17:24,854 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 16:17:24,883 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 16:17:24,883 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 16:17:24,899 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 16:17:24,900 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 16:17:25,199 WARN L202 SmtUtils]: Spent 280.00 ms on a formula simplification. DAG size of input: 119 DAG size of output: 105 [2021-02-23 16:17:25,205 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 16:17:25,206 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 181 [2021-02-23 16:17:25,226 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 16:17:25,227 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 16:17:25,242 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 16:17:25,243 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 16:17:25,258 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 16:17:25,258 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 16:17:25,518 WARN L202 SmtUtils]: Spent 246.00 ms on a formula simplification. DAG size of input: 119 DAG size of output: 105 [2021-02-23 16:17:25,522 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 16:17:25,523 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 185 [2021-02-23 16:17:25,540 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 16:17:25,540 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 16:17:25,556 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 16:17:25,556 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 16:17:25,570 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 16:17:25,571 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 16:17:25,585 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 16:17:25,586 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 16:17:25,601 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 16:17:25,602 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 16:17:25,617 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 16:17:25,617 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 16:17:25,635 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 16:17:25,636 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 16:17:25,651 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 16:17:25,651 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 16:17:25,666 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 16:17:25,667 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 16:17:25,975 WARN L202 SmtUtils]: Spent 293.00 ms on a formula simplification. DAG size of input: 119 DAG size of output: 105 [2021-02-23 16:17:25,984 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 16:17:25,986 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 181 [2021-02-23 16:17:26,002 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 16:17:26,003 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 16:17:26,362 WARN L202 SmtUtils]: Spent 345.00 ms on a formula simplification. DAG size of input: 119 DAG size of output: 105 [2021-02-23 16:17:26,367 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 16:17:26,369 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 179 [2021-02-23 16:17:26,390 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 16:17:26,391 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 16:17:26,734 WARN L202 SmtUtils]: Spent 329.00 ms on a formula simplification. DAG size of input: 119 DAG size of output: 105 [2021-02-23 16:17:26,741 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 16:17:26,743 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 185 [2021-02-23 16:17:26,760 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 16:17:26,760 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 16:17:27,079 WARN L202 SmtUtils]: Spent 305.00 ms on a formula simplification. DAG size of input: 119 DAG size of output: 104 [2021-02-23 16:17:27,084 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 16:17:27,088 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 187 [2021-02-23 16:17:27,102 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 16:17:27,103 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 16:17:27,118 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 16:17:27,118 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 16:17:27,137 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 16:17:27,137 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 16:17:27,152 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 16:17:27,152 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 16:17:27,170 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 16:17:27,170 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 16:17:27,500 WARN L202 SmtUtils]: Spent 313.00 ms on a formula simplification. DAG size of input: 119 DAG size of output: 105 [2021-02-23 16:17:27,506 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 16:17:27,508 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 181 [2021-02-23 16:17:27,824 WARN L202 SmtUtils]: Spent 300.00 ms on a formula simplification. DAG size of input: 119 DAG size of output: 105 [2021-02-23 16:17:27,829 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 16:17:27,831 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 179 [2021-02-23 16:17:27,847 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 16:17:27,847 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 16:17:28,160 WARN L202 SmtUtils]: Spent 300.00 ms on a formula simplification. DAG size of input: 119 DAG size of output: 104 [2021-02-23 16:17:28,163 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 16:17:28,165 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 177 [2021-02-23 16:17:28,180 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 16:17:28,180 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 16:17:28,196 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 16:17:28,197 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 16:17:28,212 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 16:17:28,213 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 16:17:28,484 WARN L202 SmtUtils]: Spent 257.00 ms on a formula simplification. DAG size of input: 119 DAG size of output: 104 [2021-02-23 16:17:28,488 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 16:17:28,489 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 189 [2021-02-23 16:17:28,507 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 16:17:28,507 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 16:17:28,521 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 16:17:28,522 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 16:17:28,544 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 16:17:28,544 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 16:17:28,558 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 16:17:28,560 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 16:17:28,576 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 16:17:28,577 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 16:17:28,589 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 16:17:28,589 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 16:17:28,590 INFO L206 tedInterpolationCore]: Starting analysis with loop acceleration approximation UNDERAPPROXIMATION [2021-02-23 16:17:29,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-02-23 16:17:29,054 INFO L223 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-02-23 16:17:29,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-02-23 16:17:29,424 INFO L223 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-02-23 16:17:29,820 INFO L173 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2021-02-23 16:17:29,821 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2021-02-23 16:17:29,822 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2021-02-23 16:17:29,855 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 23.02 04:17:29 BoogieIcfgContainer [2021-02-23 16:17:29,855 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-02-23 16:17:29,856 INFO L168 Benchmark]: Toolchain (without parser) took 60649.49 ms. Allocated memory was 151.0 MB in the beginning and 798.0 MB in the end (delta: 647.0 MB). Free memory was 125.5 MB in the beginning and 617.8 MB in the end (delta: -492.2 MB). Peak memory consumption was 155.4 MB. Max. memory is 8.0 GB. [2021-02-23 16:17:29,856 INFO L168 Benchmark]: CDTParser took 0.19 ms. Allocated memory is still 151.0 MB. Free memory is still 124.7 MB. There was no memory consumed. Max. memory is 8.0 GB. [2021-02-23 16:17:29,857 INFO L168 Benchmark]: CACSL2BoogieTranslator took 589.67 ms. Allocated memory is still 151.0 MB. Free memory was 124.2 MB in the beginning and 104.2 MB in the end (delta: 20.1 MB). Peak memory consumption was 19.9 MB. Max. memory is 8.0 GB. [2021-02-23 16:17:29,857 INFO L168 Benchmark]: Boogie Preprocessor took 91.48 ms. Allocated memory is still 151.0 MB. Free memory was 104.0 MB in the beginning and 100.1 MB in the end (delta: 3.8 MB). Peak memory consumption was 3.1 MB. Max. memory is 8.0 GB. [2021-02-23 16:17:29,857 INFO L168 Benchmark]: RCFGBuilder took 1487.19 ms. Allocated memory was 151.0 MB in the beginning and 181.4 MB in the end (delta: 30.4 MB). Free memory was 100.1 MB in the beginning and 115.2 MB in the end (delta: -15.1 MB). Peak memory consumption was 30.4 MB. Max. memory is 8.0 GB. [2021-02-23 16:17:29,858 INFO L168 Benchmark]: TraceAbstraction took 58458.41 ms. Allocated memory was 181.4 MB in the beginning and 798.0 MB in the end (delta: 616.6 MB). Free memory was 114.7 MB in the beginning and 617.8 MB in the end (delta: -503.1 MB). Peak memory consumption was 113.4 MB. Max. memory is 8.0 GB. [2021-02-23 16:17:29,859 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.19 ms. Allocated memory is still 151.0 MB. Free memory is still 124.7 MB. There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 589.67 ms. Allocated memory is still 151.0 MB. Free memory was 124.2 MB in the beginning and 104.2 MB in the end (delta: 20.1 MB). Peak memory consumption was 19.9 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 91.48 ms. Allocated memory is still 151.0 MB. Free memory was 104.0 MB in the beginning and 100.1 MB in the end (delta: 3.8 MB). Peak memory consumption was 3.1 MB. Max. memory is 8.0 GB. * RCFGBuilder took 1487.19 ms. Allocated memory was 151.0 MB in the beginning and 181.4 MB in the end (delta: 30.4 MB). Free memory was 100.1 MB in the beginning and 115.2 MB in the end (delta: -15.1 MB). Peak memory consumption was 30.4 MB. Max. memory is 8.0 GB. * TraceAbstraction took 58458.41 ms. Allocated memory was 181.4 MB in the beginning and 798.0 MB in the end (delta: 616.6 MB). Free memory was 114.7 MB in the beginning and 617.8 MB in the end (delta: -503.1 MB). Peak memory consumption was 113.4 MB. Max. memory is 8.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 286]: a call to reach_error is reachable a call to reach_error is reachable We found a FailurePath: [L87] int waterLevel = 1; [L88] int methaneLevelCritical = 0; [L181] int cleanupTimeShifts = 4; [L294] int pumpRunning = 0; [L295] int systemActive = 1; [L681] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L878] int methAndRunningLastTime ; [L259] int retValue_acc ; [L260] int tmp ; [L264] FCALL select_helpers() [L265] FCALL select_features() [L266] CALL, EXPR valid_product() [L71] int retValue_acc ; [L74] retValue_acc = 1 [L75] return (retValue_acc); [L266] RET, EXPR valid_product() [L266] tmp = valid_product() [L268] COND TRUE \read(tmp) [L270] FCALL setup() [L271] CALL runTest() [L252] CALL __utac_acc__Specification2_spec__1() [L883] methAndRunningLastTime = 0 [L252] RET __utac_acc__Specification2_spec__1() [L253] CALL test() [L448] int splverifierCounter ; [L449] int tmp ; [L450] int tmp___0 ; [L451] int tmp___1 ; [L452] int tmp___2 ; [L455] splverifierCounter = 0 [L457] COND TRUE 1 [L459] COND TRUE splverifierCounter < 4 [L465] tmp = __VERIFIER_nondet_int() [L467] COND TRUE \read(tmp) [L469] CALL waterRise() [L105] COND TRUE waterLevel < 2 [L106] waterLevel = waterLevel + 1 [L469] RET waterRise() [L475] tmp___0 = __VERIFIER_nondet_int() [L477] COND TRUE \read(tmp___0) [L479] CALL changeMethaneLevel() [L117] COND FALSE !(\read(methaneLevelCritical)) [L120] methaneLevelCritical = 1 [L479] RET changeMethaneLevel() [L485] tmp___2 = __VERIFIER_nondet_int() [L487] COND TRUE \read(tmp___2) [L500] CALL timeShift() [L302] COND FALSE !(\read(pumpRunning)) [L309] COND TRUE \read(systemActive) [L311] CALL processEnvironment() [L331] int tmp ; [L334] COND TRUE ! pumpRunning [L336] CALL, EXPR isHighWaterLevel() [L428] int retValue_acc ; [L429] int tmp ; [L430] int tmp___0 ; [L434] CALL, EXPR isHighWaterSensorDry() [L167] int retValue_acc ; [L170] COND FALSE !(waterLevel < 2) [L174] retValue_acc = 0 [L175] return (retValue_acc); [L434] RET, EXPR isHighWaterSensorDry() [L434] tmp = isHighWaterSensorDry() [L436] COND FALSE !(\read(tmp)) [L439] tmp___0 = 1 [L441] retValue_acc = tmp___0 [L442] return (retValue_acc); [L336] RET, EXPR isHighWaterLevel() [L336] tmp = isHighWaterLevel() [L338] COND TRUE \read(tmp) [L340] CALL activatePump() [L359] pumpRunning = 1 [L340] RET activatePump() [L311] RET processEnvironment() [L317] CALL __utac_acc__Specification2_spec__2() [L888] int tmp ; [L889] int tmp___0 ; [L893] CALL, EXPR isMethaneLevelCritical() [L126] int retValue_acc ; [L129] retValue_acc = methaneLevelCritical [L130] return (retValue_acc); [L893] RET, EXPR isMethaneLevelCritical() [L893] tmp = isMethaneLevelCritical() [L895] COND TRUE \read(tmp) [L897] CALL, EXPR isPumpRunning() [L383] int retValue_acc ; [L386] retValue_acc = pumpRunning [L387] return (retValue_acc); [L897] RET, EXPR isPumpRunning() [L897] tmp___0 = isPumpRunning() [L899] COND TRUE \read(tmp___0) [L900] COND FALSE !(\read(methAndRunningLastTime)) [L905] methAndRunningLastTime = 1 [L317] RET __utac_acc__Specification2_spec__2() [L500] RET timeShift() [L457] COND TRUE 1 [L459] COND TRUE splverifierCounter < 4 [L465] tmp = __VERIFIER_nondet_int() [L467] COND FALSE !(\read(tmp)) [L475] tmp___0 = __VERIFIER_nondet_int() [L477] COND FALSE !(\read(tmp___0)) [L485] tmp___2 = __VERIFIER_nondet_int() [L487] COND TRUE \read(tmp___2) [L500] CALL timeShift() [L302] COND TRUE \read(pumpRunning) [L304] CALL lowerWaterLevel() [L93] COND TRUE waterLevel > 0 [L94] waterLevel = waterLevel - 1 [L304] RET lowerWaterLevel() [L309] COND TRUE \read(systemActive) [L311] CALL processEnvironment() [L331] int tmp ; [L334] COND FALSE !(! pumpRunning) [L349] FCALL processEnvironment__wrappee__base() [L311] RET processEnvironment() [L317] CALL __utac_acc__Specification2_spec__2() [L888] int tmp ; [L889] int tmp___0 ; [L893] CALL, EXPR isMethaneLevelCritical() [L126] int retValue_acc ; [L129] retValue_acc = methaneLevelCritical [L130] return (retValue_acc); [L893] RET, EXPR isMethaneLevelCritical() [L893] tmp = isMethaneLevelCritical() [L895] COND TRUE \read(tmp) [L897] CALL, EXPR isPumpRunning() [L383] int retValue_acc ; [L386] retValue_acc = pumpRunning [L387] return (retValue_acc); [L897] RET, EXPR isPumpRunning() [L897] tmp___0 = isPumpRunning() [L899] COND TRUE \read(tmp___0) [L900] COND TRUE \read(methAndRunningLastTime) [L902] CALL __automaton_fail() [L286] reach_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 39 procedures, 624 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 58.3s, OverallIterations: 11, TraceHistogramMax: 2, AutomataDifference: 41.9s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 2268 SDtfs, 5866 SDslu, 4403 SDs, 0 SdLazy, 7750 SolverSat, 1395 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 17.3s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 454 GetRequests, 272 SyntacticMatches, 3 SemanticMatches, 179 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 718 ImplicationChecksByTransitivity, 21.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=1425occurred in iteration=10, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 2.4s AutomataMinimizationTime, 10 MinimizatonAttempts, 1399 StatesRemovedByMinimization, 10 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: No data available, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! Received shutdown request...