/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/acceleratedInterpolationWernerOverapprox_32.epf -i ../../../trunk/examples/svcomp/product-lines/minepump_spec1_product42.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.2.1-dev-b7b32d2 [2021-02-22 00:44:06,762 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-02-22 00:44:06,764 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-02-22 00:44:06,799 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-02-22 00:44:06,800 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-02-22 00:44:06,802 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-02-22 00:44:06,803 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-02-22 00:44:06,806 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-02-22 00:44:06,817 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-02-22 00:44:06,818 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-02-22 00:44:06,820 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-02-22 00:44:06,821 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-02-22 00:44:06,822 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-02-22 00:44:06,823 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-02-22 00:44:06,824 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-02-22 00:44:06,825 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-02-22 00:44:06,826 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-02-22 00:44:06,827 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-02-22 00:44:06,829 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-02-22 00:44:06,832 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-02-22 00:44:06,834 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-02-22 00:44:06,839 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-02-22 00:44:06,842 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-02-22 00:44:06,843 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-02-22 00:44:06,851 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-02-22 00:44:06,852 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-02-22 00:44:06,855 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-02-22 00:44:06,856 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-02-22 00:44:06,857 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-02-22 00:44:06,861 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-02-22 00:44:06,862 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-02-22 00:44:06,863 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-02-22 00:44:06,864 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-02-22 00:44:06,868 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-02-22 00:44:06,870 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-02-22 00:44:06,871 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-02-22 00:44:06,872 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-02-22 00:44:06,872 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-02-22 00:44:06,872 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-02-22 00:44:06,873 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-02-22 00:44:06,874 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-02-22 00:44:06,875 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/acceleratedInterpolation/acceleratedInterpolationWernerOverapprox_32.epf [2021-02-22 00:44:06,901 INFO L113 SettingsManager]: Loading preferences was successful [2021-02-22 00:44:06,901 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-02-22 00:44:06,904 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-02-22 00:44:06,904 INFO L138 SettingsManager]: * sizeof long=4 [2021-02-22 00:44:06,904 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-02-22 00:44:06,905 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-02-22 00:44:06,905 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-02-22 00:44:06,905 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-02-22 00:44:06,905 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-02-22 00:44:06,906 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-02-22 00:44:06,907 INFO L138 SettingsManager]: * sizeof long double=12 [2021-02-22 00:44:06,907 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-02-22 00:44:06,908 INFO L138 SettingsManager]: * Use constant arrays=true [2021-02-22 00:44:06,908 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-02-22 00:44:06,909 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-02-22 00:44:06,909 INFO L138 SettingsManager]: * Size of a code block=SingleStatement [2021-02-22 00:44:06,909 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-02-22 00:44:06,910 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-02-22 00:44:06,910 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-02-22 00:44:06,910 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-02-22 00:44:06,911 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=AcceleratedInterpolation [2021-02-22 00:44:06,911 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-02-22 00:44:06,911 INFO L138 SettingsManager]: * Loop acceleration method that is used by accelerated interpolation=WERNER_OVERAPPROX [2021-02-22 00:44:06,911 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-02-22 00:44:07,290 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-02-22 00:44:07,321 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-02-22 00:44:07,324 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-02-22 00:44:07,326 INFO L271 PluginConnector]: Initializing CDTParser... [2021-02-22 00:44:07,327 INFO L275 PluginConnector]: CDTParser initialized [2021-02-22 00:44:07,328 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec1_product42.cil.c [2021-02-22 00:44:07,411 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8736592a6/fe42e1bee91742188df6e439215cef77/FLAG634092f6b [2021-02-22 00:44:08,069 INFO L306 CDTParser]: Found 1 translation units. [2021-02-22 00:44:08,070 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/minepump_spec1_product42.cil.c [2021-02-22 00:44:08,092 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8736592a6/fe42e1bee91742188df6e439215cef77/FLAG634092f6b [2021-02-22 00:44:08,328 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8736592a6/fe42e1bee91742188df6e439215cef77 [2021-02-22 00:44:08,331 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-02-22 00:44:08,345 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2021-02-22 00:44:08,346 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-02-22 00:44:08,347 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-02-22 00:44:08,351 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-02-22 00:44:08,352 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.02 12:44:08" (1/1) ... [2021-02-22 00:44:08,353 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@282cd639 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.02 12:44:08, skipping insertion in model container [2021-02-22 00:44:08,353 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.02 12:44:08" (1/1) ... [2021-02-22 00:44:08,361 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-02-22 00:44:08,403 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-02-22 00:44:08,728 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_spec1_product42.cil.c[15670,15683] [2021-02-22 00:44:08,746 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-02-22 00:44:08,760 INFO L203 MainTranslator]: Completed pre-run [2021-02-22 00:44:08,871 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_spec1_product42.cil.c[15670,15683] [2021-02-22 00:44:08,877 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-02-22 00:44:08,910 INFO L208 MainTranslator]: Completed translation [2021-02-22 00:44:08,911 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.02 12:44:08 WrapperNode [2021-02-22 00:44:08,911 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-02-22 00:44:08,912 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-02-22 00:44:08,912 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-02-22 00:44:08,912 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-02-22 00:44:08,925 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.02 12:44:08" (1/1) ... [2021-02-22 00:44:08,925 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.02 12:44:08" (1/1) ... [2021-02-22 00:44:08,943 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.02 12:44:08" (1/1) ... [2021-02-22 00:44:08,944 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.02 12:44:08" (1/1) ... [2021-02-22 00:44:08,987 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.02 12:44:08" (1/1) ... [2021-02-22 00:44:09,005 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.02 12:44:08" (1/1) ... [2021-02-22 00:44:09,013 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.02 12:44:08" (1/1) ... [2021-02-22 00:44:09,030 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-02-22 00:44:09,031 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-02-22 00:44:09,031 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-02-22 00:44:09,031 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-02-22 00:44:09,032 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.02 12:44:08" (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 [2021-02-22 00:44:09,136 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2021-02-22 00:44:09,137 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-02-22 00:44:09,137 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2021-02-22 00:44:09,137 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2021-02-22 00:44:09,138 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2021-02-22 00:44:09,138 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2021-02-22 00:44:09,155 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2021-02-22 00:44:09,155 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2021-02-22 00:44:09,155 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2021-02-22 00:44:09,156 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2021-02-22 00:44:09,156 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2021-02-22 00:44:09,156 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2021-02-22 00:44:09,157 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2021-02-22 00:44:09,157 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2021-02-22 00:44:09,157 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2021-02-22 00:44:09,158 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2021-02-22 00:44:09,158 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterSensorDry [2021-02-22 00:44:09,159 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2021-02-22 00:44:09,159 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2021-02-22 00:44:09,161 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2021-02-22 00:44:09,161 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2021-02-22 00:44:09,162 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump__wrappee__highWaterSensor [2021-02-22 00:44:09,162 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2021-02-22 00:44:09,162 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2021-02-22 00:44:09,162 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2021-02-22 00:44:09,162 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2021-02-22 00:44:09,162 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2021-02-22 00:44:09,163 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterLevel [2021-02-22 00:44:09,163 INFO L138 BoogieDeclarations]: Found implementation of procedure startSystem [2021-02-22 00:44:09,163 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2021-02-22 00:44:09,163 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification1_spec__1 [2021-02-22 00:44:09,163 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2021-02-22 00:44:09,164 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2021-02-22 00:44:09,164 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2021-02-22 00:44:09,164 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2021-02-22 00:44:09,164 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2021-02-22 00:44:09,164 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2021-02-22 00:44:09,164 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2021-02-22 00:44:09,164 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2021-02-22 00:44:09,164 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2021-02-22 00:44:09,165 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2021-02-22 00:44:09,165 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2021-02-22 00:44:09,165 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2021-02-22 00:44:09,165 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-02-22 00:44:09,165 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2021-02-22 00:44:09,165 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2021-02-22 00:44:09,165 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2021-02-22 00:44:09,166 INFO L130 BoogieDeclarations]: Found specification of procedure free [2021-02-22 00:44:09,166 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2021-02-22 00:44:09,166 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-02-22 00:44:09,166 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-02-22 00:44:09,166 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-02-22 00:44:09,166 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-02-22 00:44:09,166 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2021-02-22 00:44:09,167 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-02-22 00:44:09,167 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2021-02-22 00:44:09,167 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2021-02-22 00:44:09,167 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-02-22 00:44:09,167 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2021-02-22 00:44:09,167 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2021-02-22 00:44:09,167 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2021-02-22 00:44:09,167 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2021-02-22 00:44:09,168 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2021-02-22 00:44:09,168 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2021-02-22 00:44:09,168 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2021-02-22 00:44:09,168 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2021-02-22 00:44:09,168 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2021-02-22 00:44:09,168 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterSensorDry [2021-02-22 00:44:09,168 INFO L130 BoogieDeclarations]: Found specification of procedure startSystem [2021-02-22 00:44:09,169 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2021-02-22 00:44:09,169 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2021-02-22 00:44:09,169 INFO L130 BoogieDeclarations]: Found specification of procedure test [2021-02-22 00:44:09,169 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2021-02-22 00:44:09,170 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2021-02-22 00:44:09,170 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2021-02-22 00:44:09,170 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2021-02-22 00:44:09,170 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification1_spec__1 [2021-02-22 00:44:09,172 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2021-02-22 00:44:09,172 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2021-02-22 00:44:09,172 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterLevel [2021-02-22 00:44:09,172 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump__wrappee__highWaterSensor [2021-02-22 00:44:09,172 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2021-02-22 00:44:09,172 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2021-02-22 00:44:09,173 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2021-02-22 00:44:09,173 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2021-02-22 00:44:09,175 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2021-02-22 00:44:09,175 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2021-02-22 00:44:09,175 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2021-02-22 00:44:09,176 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2021-02-22 00:44:09,176 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2021-02-22 00:44:09,176 INFO L130 BoogieDeclarations]: Found specification of procedure main [2021-02-22 00:44:09,177 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2021-02-22 00:44:09,177 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-02-22 00:44:09,177 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-02-22 00:44:10,547 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-02-22 00:44:10,548 INFO L299 CfgBuilder]: Removed 5 assume(true) statements. [2021-02-22 00:44:10,552 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.02 12:44:10 BoogieIcfgContainer [2021-02-22 00:44:10,553 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-02-22 00:44:10,556 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-02-22 00:44:10,556 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-02-22 00:44:10,560 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-02-22 00:44:10,560 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.02 12:44:08" (1/3) ... [2021-02-22 00:44:10,561 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2c5dbc56 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.02 12:44:10, skipping insertion in model container [2021-02-22 00:44:10,561 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.02 12:44:08" (2/3) ... [2021-02-22 00:44:10,562 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2c5dbc56 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.02 12:44:10, skipping insertion in model container [2021-02-22 00:44:10,562 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.02 12:44:10" (3/3) ... [2021-02-22 00:44:10,564 INFO L111 eAbstractionObserver]: Analyzing ICFG minepump_spec1_product42.cil.c [2021-02-22 00:44:10,571 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:AcceleratedInterpolation Determinization: PREDICATE_ABSTRACTION [2021-02-22 00:44:10,576 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2021-02-22 00:44:10,592 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-02-22 00:44:10,616 INFO L376 AbstractCegarLoop]: Interprodecural is true [2021-02-22 00:44:10,616 INFO L377 AbstractCegarLoop]: Hoare is true [2021-02-22 00:44:10,617 INFO L378 AbstractCegarLoop]: Compute interpolants for AcceleratedInterpolation [2021-02-22 00:44:10,617 INFO L379 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-02-22 00:44:10,617 INFO L380 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-02-22 00:44:10,617 INFO L381 AbstractCegarLoop]: Difference is false [2021-02-22 00:44:10,617 INFO L382 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-02-22 00:44:10,617 INFO L386 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-02-22 00:44:10,640 INFO L276 IsEmpty]: Start isEmpty. Operand 305 states. [2021-02-22 00:44:10,659 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 148 [2021-02-22 00:44:10,660 INFO L414 BasicCegarLoop]: Found error trace [2021-02-22 00:44:10,661 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] [2021-02-22 00:44:10,661 INFO L428 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-22 00:44:10,667 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-22 00:44:10,668 INFO L82 PathProgramCache]: Analyzing trace with hash 1029752729, now seen corresponding path program 1 times [2021-02-22 00:44:10,676 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-22 00:44:10,677 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [74394261] [2021-02-22 00:44:10,677 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-22 00:44:10,750 INFO L218 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2021-02-22 00:44:10,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 00:44:11,109 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 00:44:11,110 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 00:44:11,111 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 00:44:11,112 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 00:44:11,421 WARN L202 SmtUtils]: Spent 295.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2021-02-22 00:44:11,424 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-22 00:44:11,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 00:44:11,527 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 00:44:11,527 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 00:44:11,544 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2021-02-22 00:44:11,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 00:44:11,555 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 00:44:11,556 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 00:44:11,557 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-02-22 00:44:11,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 00:44:11,563 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 00:44:11,564 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 00:44:11,564 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2021-02-22 00:44:11,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 00:44:11,569 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 00:44:11,570 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 00:44:11,570 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2021-02-22 00:44:11,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 00:44:11,579 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 00:44:11,579 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 00:44:11,580 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2021-02-22 00:44:11,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 00:44:11,585 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 00:44:11,586 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 00:44:11,587 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2021-02-22 00:44:11,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 00:44:11,593 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 00:44:11,593 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 00:44:11,639 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-22 00:44:11,641 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [74394261] [2021-02-22 00:44:11,643 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-22 00:44:11,643 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-02-22 00:44:11,644 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1141328526] [2021-02-22 00:44:11,649 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-02-22 00:44:11,649 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-02-22 00:44:11,662 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-02-22 00:44:11,663 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-02-22 00:44:11,665 INFO L87 Difference]: Start difference. First operand 305 states. Second operand 3 states. [2021-02-22 00:44:13,186 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-22 00:44:13,187 INFO L93 Difference]: Finished difference Result 470 states and 557 transitions. [2021-02-22 00:44:13,188 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-02-22 00:44:13,189 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 147 [2021-02-22 00:44:13,191 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-22 00:44:13,207 INFO L225 Difference]: With dead ends: 470 [2021-02-22 00:44:13,207 INFO L226 Difference]: Without dead ends: 295 [2021-02-22 00:44:13,212 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-02-22 00:44:13,232 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 295 states. [2021-02-22 00:44:13,391 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 295 to 253. [2021-02-22 00:44:13,393 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 253 states. [2021-02-22 00:44:13,396 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 253 states to 253 states and 273 transitions. [2021-02-22 00:44:13,398 INFO L78 Accepts]: Start accepts. Automaton has 253 states and 273 transitions. Word has length 147 [2021-02-22 00:44:13,399 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-22 00:44:13,399 INFO L480 AbstractCegarLoop]: Abstraction has 253 states and 273 transitions. [2021-02-22 00:44:13,399 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2021-02-22 00:44:13,399 INFO L276 IsEmpty]: Start isEmpty. Operand 253 states and 273 transitions. [2021-02-22 00:44:13,405 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 149 [2021-02-22 00:44:13,405 INFO L414 BasicCegarLoop]: Found error trace [2021-02-22 00:44:13,405 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] [2021-02-22 00:44:13,406 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-02-22 00:44:13,406 INFO L428 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-22 00:44:13,406 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-22 00:44:13,407 INFO L82 PathProgramCache]: Analyzing trace with hash -725462361, now seen corresponding path program 1 times [2021-02-22 00:44:13,407 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-22 00:44:13,407 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1418525993] [2021-02-22 00:44:13,408 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-22 00:44:13,412 INFO L218 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2021-02-22 00:44:13,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 00:44:13,518 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 00:44:13,519 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 00:44:13,521 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 00:44:13,522 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-22 00:44:13,527 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 00:44:13,528 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 00:44:13,860 WARN L202 SmtUtils]: Spent 316.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2021-02-22 00:44:13,862 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-22 00:44:13,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 00:44:13,911 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 00:44:13,911 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 00:44:13,916 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2021-02-22 00:44:13,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 00:44:13,919 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 00:44:13,919 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 00:44:13,920 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-02-22 00:44:13,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 00:44:13,922 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 00:44:13,922 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 00:44:13,923 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2021-02-22 00:44:13,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 00:44:13,925 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 00:44:13,926 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 00:44:13,926 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2021-02-22 00:44:13,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 00:44:13,928 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 00:44:13,929 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 00:44:13,929 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2021-02-22 00:44:13,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 00:44:13,932 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 00:44:13,932 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 00:44:13,933 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2021-02-22 00:44:13,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 00:44:13,935 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 00:44:13,935 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 00:44:13,985 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-22 00:44:13,986 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1418525993] [2021-02-22 00:44:13,986 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-22 00:44:13,986 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-02-22 00:44:13,987 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [289192463] [2021-02-22 00:44:13,989 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-02-22 00:44:13,990 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-02-22 00:44:13,991 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-02-22 00:44:13,992 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-02-22 00:44:13,992 INFO L87 Difference]: Start difference. First operand 253 states and 273 transitions. Second operand 4 states. [2021-02-22 00:44:14,738 WARN L202 SmtUtils]: Spent 301.00 ms on a formula simplification that was a NOOP. DAG size: 205 [2021-02-22 00:44:15,710 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-22 00:44:15,710 INFO L93 Difference]: Finished difference Result 382 states and 427 transitions. [2021-02-22 00:44:15,711 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-02-22 00:44:15,711 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 148 [2021-02-22 00:44:15,712 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-22 00:44:15,716 INFO L225 Difference]: With dead ends: 382 [2021-02-22 00:44:15,716 INFO L226 Difference]: Without dead ends: 278 [2021-02-22 00:44:15,718 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-02-22 00:44:15,719 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 278 states. [2021-02-22 00:44:15,821 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 278 to 243. [2021-02-22 00:44:15,822 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 243 states. [2021-02-22 00:44:15,823 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 243 states to 243 states and 260 transitions. [2021-02-22 00:44:15,823 INFO L78 Accepts]: Start accepts. Automaton has 243 states and 260 transitions. Word has length 148 [2021-02-22 00:44:15,824 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-22 00:44:15,824 INFO L480 AbstractCegarLoop]: Abstraction has 243 states and 260 transitions. [2021-02-22 00:44:15,824 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2021-02-22 00:44:15,825 INFO L276 IsEmpty]: Start isEmpty. Operand 243 states and 260 transitions. [2021-02-22 00:44:15,827 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 162 [2021-02-22 00:44:15,827 INFO L414 BasicCegarLoop]: Found error trace [2021-02-22 00:44:15,827 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] [2021-02-22 00:44:15,828 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-02-22 00:44:15,828 INFO L428 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-22 00:44:15,828 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-22 00:44:15,828 INFO L82 PathProgramCache]: Analyzing trace with hash -2075010367, now seen corresponding path program 1 times [2021-02-22 00:44:15,829 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-22 00:44:15,829 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [601076777] [2021-02-22 00:44:15,829 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-22 00:44:15,833 INFO L218 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2021-02-22 00:44:15,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 00:44:15,950 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 00:44:15,951 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 00:44:15,951 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 00:44:15,952 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-22 00:44:15,955 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 00:44:15,956 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-22 00:44:15,960 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 00:44:15,961 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 00:44:15,962 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 00:44:15,962 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-22 00:44:15,967 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 00:44:15,968 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 00:44:16,282 WARN L202 SmtUtils]: Spent 295.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2021-02-22 00:44:16,287 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-22 00:44:16,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 00:44:16,328 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 00:44:16,329 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 00:44:16,333 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2021-02-22 00:44:16,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 00:44:16,335 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 00:44:16,336 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 00:44:16,336 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-02-22 00:44:16,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 00:44:16,338 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 00:44:16,339 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 00:44:16,339 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2021-02-22 00:44:16,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 00:44:16,345 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 00:44:16,346 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 00:44:16,354 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 00:44:16,355 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-22 00:44:16,368 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 00:44:16,368 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-22 00:44:16,381 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2021-02-22 00:44:16,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 00:44:16,384 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 00:44:16,385 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 00:44:16,395 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2021-02-22 00:44:16,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 00:44:16,400 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 00:44:16,400 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-22 00:44:16,412 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2021-02-22 00:44:16,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 00:44:16,415 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 00:44:16,415 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 00:44:16,416 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 149 [2021-02-22 00:44:16,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 00:44:16,418 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 00:44:16,419 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 00:44:16,450 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-22 00:44:16,451 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [601076777] [2021-02-22 00:44:16,451 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-22 00:44:16,451 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-02-22 00:44:16,452 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1348851489] [2021-02-22 00:44:16,452 INFO L460 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-02-22 00:44:16,452 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-02-22 00:44:16,453 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-02-22 00:44:16,453 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2021-02-22 00:44:16,453 INFO L87 Difference]: Start difference. First operand 243 states and 260 transitions. Second operand 10 states. [2021-02-22 00:44:17,150 WARN L202 SmtUtils]: Spent 319.00 ms on a formula simplification that was a NOOP. DAG size: 204 [2021-02-22 00:44:17,574 WARN L202 SmtUtils]: Spent 316.00 ms on a formula simplification that was a NOOP. DAG size: 207 [2021-02-22 00:44:17,959 WARN L202 SmtUtils]: Spent 362.00 ms on a formula simplification that was a NOOP. DAG size: 210 [2021-02-22 00:44:18,356 WARN L202 SmtUtils]: Spent 354.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2021-02-22 00:44:18,729 WARN L202 SmtUtils]: Spent 337.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2021-02-22 00:44:19,089 WARN L202 SmtUtils]: Spent 327.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2021-02-22 00:44:20,742 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-22 00:44:20,742 INFO L93 Difference]: Finished difference Result 428 states and 489 transitions. [2021-02-22 00:44:20,743 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-02-22 00:44:20,743 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 161 [2021-02-22 00:44:20,744 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-22 00:44:20,747 INFO L225 Difference]: With dead ends: 428 [2021-02-22 00:44:20,747 INFO L226 Difference]: Without dead ends: 300 [2021-02-22 00:44:20,749 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 20 ImplicationChecksByTransitivity, 2.5s TimeCoverageRelationStatistics Valid=81, Invalid=191, Unknown=0, NotChecked=0, Total=272 [2021-02-22 00:44:20,749 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 300 states. [2021-02-22 00:44:20,840 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 300 to 243. [2021-02-22 00:44:20,841 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 243 states. [2021-02-22 00:44:20,842 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 243 states to 243 states and 259 transitions. [2021-02-22 00:44:20,843 INFO L78 Accepts]: Start accepts. Automaton has 243 states and 259 transitions. Word has length 161 [2021-02-22 00:44:20,843 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-22 00:44:20,843 INFO L480 AbstractCegarLoop]: Abstraction has 243 states and 259 transitions. [2021-02-22 00:44:20,843 INFO L481 AbstractCegarLoop]: Interpolant automaton has 10 states. [2021-02-22 00:44:20,844 INFO L276 IsEmpty]: Start isEmpty. Operand 243 states and 259 transitions. [2021-02-22 00:44:20,846 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 170 [2021-02-22 00:44:20,846 INFO L414 BasicCegarLoop]: Found error trace [2021-02-22 00:44:20,846 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] [2021-02-22 00:44:20,847 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-02-22 00:44:20,847 INFO L428 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-22 00:44:20,847 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-22 00:44:20,847 INFO L82 PathProgramCache]: Analyzing trace with hash -1857958894, now seen corresponding path program 1 times [2021-02-22 00:44:20,848 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-22 00:44:20,848 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [490016388] [2021-02-22 00:44:20,848 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-22 00:44:20,851 INFO L218 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2021-02-22 00:44:20,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 00:44:20,924 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 00:44:20,925 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-22 00:44:20,928 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 00:44:20,928 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-22 00:44:20,929 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 00:44:20,929 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-22 00:44:20,930 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 00:44:20,930 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-22 00:44:20,931 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 00:44:20,931 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-22 00:44:20,932 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 00:44:20,932 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 00:44:21,228 WARN L202 SmtUtils]: Spent 264.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2021-02-22 00:44:21,229 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-22 00:44:21,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 00:44:21,278 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 00:44:21,278 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 00:44:21,279 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 00:44:21,281 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-22 00:44:21,285 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2021-02-22 00:44:21,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 00:44:21,288 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 00:44:21,289 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 00:44:21,289 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-02-22 00:44:21,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 00:44:21,291 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 00:44:21,292 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 00:44:21,292 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2021-02-22 00:44:21,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 00:44:21,296 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 00:44:21,297 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 00:44:21,297 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2021-02-22 00:44:21,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 00:44:21,300 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 00:44:21,300 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 00:44:21,307 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2021-02-22 00:44:21,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 00:44:21,310 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 00:44:21,311 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 00:44:21,319 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2021-02-22 00:44:21,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 00:44:21,323 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 00:44:21,324 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-22 00:44:21,325 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 00:44:21,325 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-22 00:44:21,333 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-02-22 00:44:21,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 00:44:21,336 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 00:44:21,337 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 00:44:21,337 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2021-02-22 00:44:21,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 00:44:21,339 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 00:44:21,340 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 00:44:21,340 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 157 [2021-02-22 00:44:21,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 00:44:21,343 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 00:44:21,343 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 00:44:21,381 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-22 00:44:21,382 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [490016388] [2021-02-22 00:44:21,382 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-22 00:44:21,382 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-02-22 00:44:21,382 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1439962951] [2021-02-22 00:44:21,383 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-02-22 00:44:21,383 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-02-22 00:44:21,383 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-02-22 00:44:21,384 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2021-02-22 00:44:21,384 INFO L87 Difference]: Start difference. First operand 243 states and 259 transitions. Second operand 7 states. [2021-02-22 00:44:22,009 WARN L202 SmtUtils]: Spent 320.00 ms on a formula simplification that was a NOOP. DAG size: 204 [2021-02-22 00:44:23,702 WARN L202 SmtUtils]: Spent 302.00 ms on a formula simplification that was a NOOP. DAG size: 205 [2021-02-22 00:44:24,640 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-22 00:44:24,640 INFO L93 Difference]: Finished difference Result 599 states and 706 transitions. [2021-02-22 00:44:24,640 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-02-22 00:44:24,641 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 169 [2021-02-22 00:44:24,641 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-22 00:44:24,645 INFO L225 Difference]: With dead ends: 599 [2021-02-22 00:44:24,645 INFO L226 Difference]: Without dead ends: 471 [2021-02-22 00:44:24,647 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=58, Invalid=124, Unknown=0, NotChecked=0, Total=182 [2021-02-22 00:44:24,648 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 471 states. [2021-02-22 00:44:24,808 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 471 to 344. [2021-02-22 00:44:24,808 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 344 states. [2021-02-22 00:44:24,810 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 344 states to 344 states and 370 transitions. [2021-02-22 00:44:24,811 INFO L78 Accepts]: Start accepts. Automaton has 344 states and 370 transitions. Word has length 169 [2021-02-22 00:44:24,811 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-22 00:44:24,811 INFO L480 AbstractCegarLoop]: Abstraction has 344 states and 370 transitions. [2021-02-22 00:44:24,811 INFO L481 AbstractCegarLoop]: Interpolant automaton has 7 states. [2021-02-22 00:44:24,811 INFO L276 IsEmpty]: Start isEmpty. Operand 344 states and 370 transitions. [2021-02-22 00:44:24,814 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 194 [2021-02-22 00:44:24,814 INFO L414 BasicCegarLoop]: Found error trace [2021-02-22 00:44:24,814 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] [2021-02-22 00:44:24,815 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-02-22 00:44:24,815 INFO L428 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-22 00:44:24,815 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-22 00:44:24,815 INFO L82 PathProgramCache]: Analyzing trace with hash -1588290004, now seen corresponding path program 1 times [2021-02-22 00:44:24,816 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-22 00:44:24,816 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1663487732] [2021-02-22 00:44:24,816 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-22 00:44:24,819 INFO L218 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2021-02-22 00:44:24,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 00:44:24,885 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 00:44:24,886 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-22 00:44:24,889 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 00:44:24,890 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-22 00:44:24,892 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 00:44:24,893 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-22 00:44:24,893 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 00:44:24,894 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-22 00:44:24,894 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 00:44:24,895 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-22 00:44:24,899 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 00:44:24,899 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-22 00:44:24,904 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 00:44:24,905 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 00:44:25,205 WARN L202 SmtUtils]: Spent 284.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2021-02-22 00:44:25,206 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-22 00:44:25,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 00:44:25,286 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 00:44:25,287 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 00:44:25,288 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 00:44:25,288 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-22 00:44:25,294 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2021-02-22 00:44:25,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 00:44:25,298 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 00:44:25,299 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 00:44:25,299 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-02-22 00:44:25,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 00:44:25,301 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 00:44:25,303 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 00:44:25,303 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2021-02-22 00:44:25,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 00:44:25,310 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 00:44:25,311 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 00:44:25,311 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2021-02-22 00:44:25,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 00:44:25,313 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 00:44:25,314 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 00:44:25,323 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2021-02-22 00:44:25,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 00:44:25,327 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 00:44:25,328 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 00:44:25,336 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2021-02-22 00:44:25,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 00:44:25,344 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 00:44:25,344 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 00:44:25,345 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-02-22 00:44:25,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 00:44:25,348 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 00:44:25,348 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 00:44:25,349 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-02-22 00:44:25,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 00:44:25,351 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 00:44:25,352 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 00:44:25,352 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2021-02-22 00:44:25,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 00:44:25,354 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 00:44:25,355 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 00:44:25,356 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 171 [2021-02-22 00:44:25,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 00:44:25,359 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 00:44:25,360 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 00:44:25,360 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 00:44:25,361 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-22 00:44:25,371 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 00:44:25,372 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-22 00:44:25,382 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 181 [2021-02-22 00:44:25,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 00:44:25,385 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 00:44:25,385 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 00:44:25,428 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-22 00:44:25,429 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1663487732] [2021-02-22 00:44:25,429 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-22 00:44:25,429 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-02-22 00:44:25,429 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2128676678] [2021-02-22 00:44:25,430 INFO L460 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-02-22 00:44:25,430 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-02-22 00:44:25,430 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-02-22 00:44:25,431 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2021-02-22 00:44:25,431 INFO L87 Difference]: Start difference. First operand 344 states and 370 transitions. Second operand 10 states. [2021-02-22 00:44:26,093 WARN L202 SmtUtils]: Spent 326.00 ms on a formula simplification that was a NOOP. DAG size: 204 [2021-02-22 00:44:27,610 WARN L202 SmtUtils]: Spent 334.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2021-02-22 00:44:28,000 WARN L202 SmtUtils]: Spent 355.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2021-02-22 00:44:28,458 WARN L202 SmtUtils]: Spent 323.00 ms on a formula simplification that was a NOOP. DAG size: 204 [2021-02-22 00:44:28,819 WARN L202 SmtUtils]: Spent 334.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2021-02-22 00:44:29,557 WARN L202 SmtUtils]: Spent 335.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2021-02-22 00:44:29,926 WARN L202 SmtUtils]: Spent 344.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2021-02-22 00:44:30,293 WARN L202 SmtUtils]: Spent 343.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2021-02-22 00:44:30,757 WARN L202 SmtUtils]: Spent 319.00 ms on a formula simplification that was a NOOP. DAG size: 205 [2021-02-22 00:44:32,191 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-22 00:44:32,191 INFO L93 Difference]: Finished difference Result 991 states and 1199 transitions. [2021-02-22 00:44:32,192 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2021-02-22 00:44:32,192 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 193 [2021-02-22 00:44:32,193 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-22 00:44:32,203 INFO L225 Difference]: With dead ends: 991 [2021-02-22 00:44:32,204 INFO L226 Difference]: Without dead ends: 762 [2021-02-22 00:44:32,205 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 51 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 60 ImplicationChecksByTransitivity, 3.5s TimeCoverageRelationStatistics Valid=143, Invalid=363, Unknown=0, NotChecked=0, Total=506 [2021-02-22 00:44:32,206 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 762 states. [2021-02-22 00:44:32,448 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 762 to 536. [2021-02-22 00:44:32,448 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 536 states. [2021-02-22 00:44:32,452 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 536 states to 536 states and 583 transitions. [2021-02-22 00:44:32,452 INFO L78 Accepts]: Start accepts. Automaton has 536 states and 583 transitions. Word has length 193 [2021-02-22 00:44:32,453 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-22 00:44:32,453 INFO L480 AbstractCegarLoop]: Abstraction has 536 states and 583 transitions. [2021-02-22 00:44:32,453 INFO L481 AbstractCegarLoop]: Interpolant automaton has 10 states. [2021-02-22 00:44:32,453 INFO L276 IsEmpty]: Start isEmpty. Operand 536 states and 583 transitions. [2021-02-22 00:44:32,456 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 199 [2021-02-22 00:44:32,456 INFO L414 BasicCegarLoop]: Found error trace [2021-02-22 00:44:32,457 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] [2021-02-22 00:44:32,457 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-02-22 00:44:32,457 INFO L428 AbstractCegarLoop]: === Iteration 6 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-22 00:44:32,457 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-22 00:44:32,458 INFO L82 PathProgramCache]: Analyzing trace with hash 1322354955, now seen corresponding path program 1 times [2021-02-22 00:44:32,458 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-22 00:44:32,458 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1736451018] [2021-02-22 00:44:32,458 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-22 00:44:32,461 INFO L218 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2021-02-22 00:44:32,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 00:44:32,524 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 00:44:32,525 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-22 00:44:32,528 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 00:44:32,528 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-22 00:44:32,529 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 00:44:32,529 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-22 00:44:32,530 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 00:44:32,530 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-22 00:44:32,531 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 00:44:32,531 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-22 00:44:32,532 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 00:44:32,532 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-22 00:44:32,533 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 00:44:32,533 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-22 00:44:32,537 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 00:44:32,537 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-22 00:44:32,542 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 00:44:32,542 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 00:44:32,892 WARN L202 SmtUtils]: Spent 335.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2021-02-22 00:44:32,894 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-22 00:44:32,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 00:44:32,938 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 00:44:32,938 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 00:44:32,939 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 00:44:32,939 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-22 00:44:32,948 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2021-02-22 00:44:32,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 00:44:32,951 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 00:44:32,951 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 00:44:32,952 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-02-22 00:44:32,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 00:44:32,954 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 00:44:32,954 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 00:44:32,955 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2021-02-22 00:44:32,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 00:44:32,958 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 00:44:32,958 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 00:44:32,958 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2021-02-22 00:44:32,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 00:44:32,961 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 00:44:32,961 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 00:44:32,972 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2021-02-22 00:44:32,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 00:44:32,975 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 00:44:32,975 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 00:44:32,986 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2021-02-22 00:44:32,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 00:44:32,989 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 00:44:32,989 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 00:44:33,002 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2021-02-22 00:44:33,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 00:44:33,008 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 00:44:33,009 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 00:44:33,009 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 00:44:33,010 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-22 00:44:33,010 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-02-22 00:44:33,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 00:44:33,015 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 00:44:33,015 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 00:44:33,016 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-02-22 00:44:33,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 00:44:33,018 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 00:44:33,019 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 00:44:33,019 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2021-02-22 00:44:33,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 00:44:33,022 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 00:44:33,022 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 00:44:33,024 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 176 [2021-02-22 00:44:33,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 00:44:33,026 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 00:44:33,027 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 00:44:33,027 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 186 [2021-02-22 00:44:33,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 00:44:33,031 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 00:44:33,031 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 00:44:33,032 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 00:44:33,032 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-22 00:44:33,044 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 00:44:33,045 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-22 00:44:33,112 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-22 00:44:33,112 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1736451018] [2021-02-22 00:44:33,112 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-22 00:44:33,112 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-02-22 00:44:33,112 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1294719658] [2021-02-22 00:44:33,113 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-02-22 00:44:33,113 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-02-22 00:44:33,114 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-02-22 00:44:33,114 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2021-02-22 00:44:33,114 INFO L87 Difference]: Start difference. First operand 536 states and 583 transitions. Second operand 11 states. [2021-02-22 00:44:33,732 WARN L202 SmtUtils]: Spent 313.00 ms on a formula simplification that was a NOOP. DAG size: 204 [2021-02-22 00:44:35,521 WARN L202 SmtUtils]: Spent 327.00 ms on a formula simplification that was a NOOP. DAG size: 204 [2021-02-22 00:44:35,917 WARN L202 SmtUtils]: Spent 333.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2021-02-22 00:44:36,401 WARN L202 SmtUtils]: Spent 327.00 ms on a formula simplification that was a NOOP. DAG size: 205 [2021-02-22 00:44:37,840 WARN L202 SmtUtils]: Spent 325.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2021-02-22 00:44:38,193 WARN L202 SmtUtils]: Spent 289.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2021-02-22 00:44:38,515 WARN L202 SmtUtils]: Spent 277.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2021-02-22 00:44:38,925 WARN L202 SmtUtils]: Spent 380.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2021-02-22 00:44:39,318 WARN L202 SmtUtils]: Spent 363.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2021-02-22 00:44:39,916 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-22 00:44:39,917 INFO L93 Difference]: Finished difference Result 897 states and 1110 transitions. [2021-02-22 00:44:39,917 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2021-02-22 00:44:39,917 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 198 [2021-02-22 00:44:39,918 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-22 00:44:39,924 INFO L225 Difference]: With dead ends: 897 [2021-02-22 00:44:39,924 INFO L226 Difference]: Without dead ends: 894 [2021-02-22 00:44:39,925 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 64 GetRequests, 35 SyntacticMatches, 0 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 146 ImplicationChecksByTransitivity, 3.6s TimeCoverageRelationStatistics Valid=261, Invalid=669, Unknown=0, NotChecked=0, Total=930 [2021-02-22 00:44:39,926 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 894 states. [2021-02-22 00:44:40,172 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 894 to 536. [2021-02-22 00:44:40,173 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 536 states. [2021-02-22 00:44:40,176 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 536 states to 536 states and 582 transitions. [2021-02-22 00:44:40,176 INFO L78 Accepts]: Start accepts. Automaton has 536 states and 582 transitions. Word has length 198 [2021-02-22 00:44:40,177 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-22 00:44:40,177 INFO L480 AbstractCegarLoop]: Abstraction has 536 states and 582 transitions. [2021-02-22 00:44:40,177 INFO L481 AbstractCegarLoop]: Interpolant automaton has 11 states. [2021-02-22 00:44:40,177 INFO L276 IsEmpty]: Start isEmpty. Operand 536 states and 582 transitions. [2021-02-22 00:44:40,181 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 222 [2021-02-22 00:44:40,181 INFO L414 BasicCegarLoop]: Found error trace [2021-02-22 00:44:40,182 INFO L422 BasicCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-02-22 00:44:40,182 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-02-22 00:44:40,182 INFO L428 AbstractCegarLoop]: === Iteration 7 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-22 00:44:40,182 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-22 00:44:40,183 INFO L82 PathProgramCache]: Analyzing trace with hash 1970641203, now seen corresponding path program 1 times [2021-02-22 00:44:40,183 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-22 00:44:40,183 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2120264244] [2021-02-22 00:44:40,183 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-22 00:44:40,186 INFO L218 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2021-02-22 00:44:40,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 00:44:40,258 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 00:44:40,258 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 00:44:40,259 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 00:44:40,259 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 00:44:40,572 WARN L202 SmtUtils]: Spent 306.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2021-02-22 00:44:40,573 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-22 00:44:40,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 00:44:40,602 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 00:44:40,603 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 00:44:40,607 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2021-02-22 00:44:40,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 00:44:40,608 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 00:44:40,609 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 00:44:40,609 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-02-22 00:44:40,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 00:44:40,611 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 00:44:40,612 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 00:44:40,612 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2021-02-22 00:44:40,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 00:44:40,614 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 00:44:40,615 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 00:44:40,615 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2021-02-22 00:44:40,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 00:44:40,617 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 00:44:40,619 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 00:44:40,625 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2021-02-22 00:44:40,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 00:44:40,628 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 00:44:40,628 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 00:44:40,635 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2021-02-22 00:44:40,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 00:44:40,638 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 00:44:40,638 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 00:44:40,646 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2021-02-22 00:44:40,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 00:44:40,655 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 00:44:40,662 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 00:44:40,662 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 00:44:40,663 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-22 00:44:40,671 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 00:44:40,671 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-22 00:44:40,680 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 00:44:40,680 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 00:44:40,681 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-02-22 00:44:40,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 00:44:40,692 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 00:44:40,692 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 00:44:40,693 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 00:44:40,694 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-22 00:44:40,706 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 00:44:40,707 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-22 00:44:40,721 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 00:44:40,723 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-22 00:44:40,738 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-02-22 00:44:40,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 00:44:40,742 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 00:44:40,743 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 00:44:40,744 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2021-02-22 00:44:40,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 00:44:40,749 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 00:44:40,749 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 00:44:40,750 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-02-22 00:44:40,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 00:44:40,753 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 00:44:40,754 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 00:44:40,754 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-02-22 00:44:40,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 00:44:40,756 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 00:44:40,759 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 00:44:40,761 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2021-02-22 00:44:40,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 00:44:40,764 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 00:44:40,764 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 00:44:40,767 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 199 [2021-02-22 00:44:40,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 00:44:40,770 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 00:44:40,770 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 00:44:40,770 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 209 [2021-02-22 00:44:40,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 00:44:40,773 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 00:44:40,773 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 00:44:40,820 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-22 00:44:40,821 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2120264244] [2021-02-22 00:44:40,821 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-22 00:44:40,821 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-02-22 00:44:40,821 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [698206548] [2021-02-22 00:44:40,822 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-02-22 00:44:40,822 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-02-22 00:44:40,823 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-02-22 00:44:40,823 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2021-02-22 00:44:40,823 INFO L87 Difference]: Start difference. First operand 536 states and 582 transitions. Second operand 11 states. [2021-02-22 00:44:42,228 WARN L202 SmtUtils]: Spent 325.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2021-02-22 00:44:42,609 WARN L202 SmtUtils]: Spent 353.00 ms on a formula simplification that was a NOOP. DAG size: 209 [2021-02-22 00:44:43,012 WARN L202 SmtUtils]: Spent 378.00 ms on a formula simplification that was a NOOP. DAG size: 212 [2021-02-22 00:44:43,392 WARN L202 SmtUtils]: Spent 332.00 ms on a formula simplification that was a NOOP. DAG size: 205 [2021-02-22 00:44:43,777 WARN L202 SmtUtils]: Spent 335.00 ms on a formula simplification that was a NOOP. DAG size: 207 [2021-02-22 00:44:44,129 WARN L202 SmtUtils]: Spent 325.00 ms on a formula simplification that was a NOOP. DAG size: 205 [2021-02-22 00:44:45,994 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-22 00:44:45,994 INFO L93 Difference]: Finished difference Result 1329 states and 1631 transitions. [2021-02-22 00:44:45,995 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2021-02-22 00:44:45,995 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 221 [2021-02-22 00:44:45,998 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-22 00:44:46,005 INFO L225 Difference]: With dead ends: 1329 [2021-02-22 00:44:46,005 INFO L226 Difference]: Without dead ends: 908 [2021-02-22 00:44:46,007 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 54 GetRequests, 35 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 44 ImplicationChecksByTransitivity, 2.5s TimeCoverageRelationStatistics Valid=121, Invalid=299, Unknown=0, NotChecked=0, Total=420 [2021-02-22 00:44:46,009 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 908 states. [2021-02-22 00:44:46,301 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 908 to 552. [2021-02-22 00:44:46,301 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 552 states. [2021-02-22 00:44:46,306 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 552 states to 552 states and 598 transitions. [2021-02-22 00:44:46,308 INFO L78 Accepts]: Start accepts. Automaton has 552 states and 598 transitions. Word has length 221 [2021-02-22 00:44:46,308 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-22 00:44:46,308 INFO L480 AbstractCegarLoop]: Abstraction has 552 states and 598 transitions. [2021-02-22 00:44:46,308 INFO L481 AbstractCegarLoop]: Interpolant automaton has 11 states. [2021-02-22 00:44:46,309 INFO L276 IsEmpty]: Start isEmpty. Operand 552 states and 598 transitions. [2021-02-22 00:44:46,312 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 222 [2021-02-22 00:44:46,312 INFO L414 BasicCegarLoop]: Found error trace [2021-02-22 00:44:46,313 INFO L422 BasicCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-02-22 00:44:46,313 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-02-22 00:44:46,313 INFO L428 AbstractCegarLoop]: === Iteration 8 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-22 00:44:46,313 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-22 00:44:46,314 INFO L82 PathProgramCache]: Analyzing trace with hash 215971027, now seen corresponding path program 1 times [2021-02-22 00:44:46,314 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-22 00:44:46,314 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [521837642] [2021-02-22 00:44:46,314 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-22 00:44:46,318 INFO L218 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2021-02-22 00:44:46,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 00:44:46,388 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 00:44:46,389 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 00:44:46,389 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 00:44:46,390 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-22 00:44:46,393 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 00:44:46,398 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-22 00:44:46,404 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 00:44:46,405 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 00:44:46,406 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 00:44:46,406 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 00:44:46,713 WARN L202 SmtUtils]: Spent 293.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2021-02-22 00:44:46,715 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-22 00:44:46,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 00:44:46,741 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 00:44:46,742 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 00:44:46,746 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2021-02-22 00:44:46,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 00:44:46,747 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 00:44:46,748 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 00:44:46,748 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-02-22 00:44:46,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 00:44:46,750 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 00:44:46,750 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 00:44:46,750 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2021-02-22 00:44:46,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 00:44:46,755 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 00:44:46,755 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 00:44:46,756 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 00:44:46,757 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-22 00:44:46,769 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 00:44:46,769 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-22 00:44:46,781 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2021-02-22 00:44:46,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 00:44:46,783 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 00:44:46,784 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 00:44:46,794 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2021-02-22 00:44:46,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 00:44:46,796 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 00:44:46,796 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 00:44:46,807 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2021-02-22 00:44:46,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 00:44:46,812 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 00:44:46,815 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 00:44:46,827 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2021-02-22 00:44:46,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 00:44:46,836 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 00:44:46,836 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 00:44:46,837 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 00:44:46,837 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 00:44:46,837 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-02-22 00:44:46,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 00:44:46,843 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 00:44:46,843 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 00:44:46,844 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 00:44:46,844 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-22 00:44:46,856 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 00:44:46,857 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-22 00:44:46,869 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 00:44:46,870 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 00:44:46,870 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-02-22 00:44:46,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 00:44:46,875 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 00:44:46,876 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 00:44:46,879 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 00:44:46,879 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-22 00:44:46,893 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 00:44:46,893 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-22 00:44:46,908 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2021-02-22 00:44:46,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 00:44:46,912 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 00:44:46,913 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 00:44:46,913 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-02-22 00:44:46,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 00:44:46,915 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 00:44:46,916 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 00:44:46,916 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-02-22 00:44:46,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 00:44:46,918 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 00:44:46,918 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 00:44:46,919 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2021-02-22 00:44:46,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 00:44:46,920 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 00:44:46,921 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 00:44:46,923 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 199 [2021-02-22 00:44:46,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 00:44:46,925 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 00:44:46,926 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 00:44:46,926 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 209 [2021-02-22 00:44:46,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 00:44:46,928 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 00:44:46,928 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 00:44:46,976 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-22 00:44:46,976 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [521837642] [2021-02-22 00:44:46,976 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-22 00:44:46,977 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2021-02-22 00:44:46,977 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [237331668] [2021-02-22 00:44:46,977 INFO L460 AbstractCegarLoop]: Interpolant automaton has 14 states [2021-02-22 00:44:46,977 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-02-22 00:44:46,978 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2021-02-22 00:44:46,978 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=154, Unknown=0, NotChecked=0, Total=182 [2021-02-22 00:44:46,978 INFO L87 Difference]: Start difference. First operand 552 states and 598 transitions. Second operand 14 states. [2021-02-22 00:44:47,659 WARN L202 SmtUtils]: Spent 283.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2021-02-22 00:44:48,023 WARN L202 SmtUtils]: Spent 338.00 ms on a formula simplification that was a NOOP. DAG size: 209 [2021-02-22 00:44:48,393 WARN L202 SmtUtils]: Spent 323.00 ms on a formula simplification that was a NOOP. DAG size: 205 [2021-02-22 00:44:48,746 WARN L202 SmtUtils]: Spent 314.00 ms on a formula simplification that was a NOOP. DAG size: 207 [2021-02-22 00:44:49,097 WARN L202 SmtUtils]: Spent 323.00 ms on a formula simplification that was a NOOP. DAG size: 205 [2021-02-22 00:44:50,159 WARN L202 SmtUtils]: Spent 349.00 ms on a formula simplification that was a NOOP. DAG size: 205 [2021-02-22 00:44:50,525 WARN L202 SmtUtils]: Spent 332.00 ms on a formula simplification that was a NOOP. DAG size: 207 [2021-02-22 00:44:50,911 WARN L202 SmtUtils]: Spent 326.00 ms on a formula simplification that was a NOOP. DAG size: 205 [2021-02-22 00:44:51,298 WARN L202 SmtUtils]: Spent 333.00 ms on a formula simplification that was a NOOP. DAG size: 207 [2021-02-22 00:44:51,665 WARN L202 SmtUtils]: Spent 334.00 ms on a formula simplification that was a NOOP. DAG size: 205 [2021-02-22 00:44:53,717 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-22 00:44:53,718 INFO L93 Difference]: Finished difference Result 1363 states and 1667 transitions. [2021-02-22 00:44:53,718 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2021-02-22 00:44:53,718 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 221 [2021-02-22 00:44:53,724 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-22 00:44:53,731 INFO L225 Difference]: With dead ends: 1363 [2021-02-22 00:44:53,731 INFO L226 Difference]: Without dead ends: 926 [2021-02-22 00:44:53,733 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 64 GetRequests, 38 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 89 ImplicationChecksByTransitivity, 3.9s TimeCoverageRelationStatistics Valid=172, Invalid=584, Unknown=0, NotChecked=0, Total=756 [2021-02-22 00:44:53,735 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 926 states. [2021-02-22 00:44:54,054 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 926 to 564. [2021-02-22 00:44:54,054 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 564 states. [2021-02-22 00:44:54,057 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 564 states to 564 states and 610 transitions. [2021-02-22 00:44:54,057 INFO L78 Accepts]: Start accepts. Automaton has 564 states and 610 transitions. Word has length 221 [2021-02-22 00:44:54,058 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-22 00:44:54,058 INFO L480 AbstractCegarLoop]: Abstraction has 564 states and 610 transitions. [2021-02-22 00:44:54,058 INFO L481 AbstractCegarLoop]: Interpolant automaton has 14 states. [2021-02-22 00:44:54,058 INFO L276 IsEmpty]: Start isEmpty. Operand 564 states and 610 transitions. [2021-02-22 00:44:54,062 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 222 [2021-02-22 00:44:54,062 INFO L414 BasicCegarLoop]: Found error trace [2021-02-22 00:44:54,063 INFO L422 BasicCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-02-22 00:44:54,063 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-02-22 00:44:54,063 INFO L428 AbstractCegarLoop]: === Iteration 9 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-22 00:44:54,064 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-22 00:44:54,064 INFO L82 PathProgramCache]: Analyzing trace with hash 888692470, now seen corresponding path program 1 times [2021-02-22 00:44:54,064 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-22 00:44:54,064 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1666285773] [2021-02-22 00:44:54,064 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-22 00:44:54,068 INFO L218 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2021-02-22 00:44:54,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 00:44:54,148 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 00:44:54,148 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-22 00:44:54,151 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 00:44:54,152 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-22 00:44:54,152 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 00:44:54,152 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-22 00:44:54,153 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 00:44:54,153 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-22 00:44:54,154 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 00:44:54,154 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-02-22 00:44:54,155 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 00:44:54,155 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 00:44:54,481 WARN L202 SmtUtils]: Spent 315.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2021-02-22 00:44:54,482 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-22 00:44:54,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 00:44:54,520 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 00:44:54,520 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 00:44:54,521 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 00:44:54,521 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-02-22 00:44:54,526 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2021-02-22 00:44:54,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 00:44:54,528 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 00:44:54,531 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 00:44:54,531 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-02-22 00:44:54,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 00:44:54,533 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 00:44:54,534 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 00:44:54,534 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2021-02-22 00:44:54,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 00:44:54,536 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 00:44:54,536 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 00:44:54,537 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2021-02-22 00:44:54,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 00:44:54,538 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 00:44:54,539 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 00:44:54,545 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2021-02-22 00:44:54,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 00:44:54,548 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 00:44:54,548 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 00:44:54,555 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2021-02-22 00:44:54,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 00:44:54,558 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 00:44:54,558 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 00:44:54,567 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2021-02-22 00:44:54,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 00:44:54,575 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 00:44:54,576 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 00:44:54,576 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 00:44:54,577 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-22 00:44:54,586 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-02-22 00:44:54,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 00:44:54,590 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 00:44:54,590 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 00:44:54,591 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 00:44:54,591 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-22 00:44:54,600 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-02-22 00:44:54,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 00:44:54,603 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 00:44:54,603 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 00:44:54,604 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 00:44:54,604 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-22 00:44:54,613 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2021-02-22 00:44:54,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 00:44:54,618 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 00:44:54,618 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 00:44:54,618 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-02-22 00:44:54,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 00:44:54,621 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 00:44:54,621 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 00:44:54,622 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-02-22 00:44:54,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 00:44:54,623 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 00:44:54,624 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 00:44:54,624 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2021-02-22 00:44:54,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 00:44:54,626 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 00:44:54,627 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 00:44:54,630 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 199 [2021-02-22 00:44:54,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 00:44:54,632 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 00:44:54,632 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 00:44:54,632 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 209 [2021-02-22 00:44:54,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 00:44:54,634 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 00:44:54,635 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 00:44:54,693 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-22 00:44:54,693 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1666285773] [2021-02-22 00:44:54,693 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-22 00:44:54,693 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-02-22 00:44:54,694 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [875242822] [2021-02-22 00:44:54,694 INFO L460 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-02-22 00:44:54,694 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-02-22 00:44:54,695 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-02-22 00:44:54,695 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2021-02-22 00:44:54,695 INFO L87 Difference]: Start difference. First operand 564 states and 610 transitions. Second operand 8 states. [2021-02-22 00:44:55,305 WARN L202 SmtUtils]: Spent 298.00 ms on a formula simplification that was a NOOP. DAG size: 204 [2021-02-22 00:44:56,029 WARN L202 SmtUtils]: Spent 335.00 ms on a formula simplification that was a NOOP. DAG size: 204 [2021-02-22 00:44:59,284 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-22 00:44:59,285 INFO L93 Difference]: Finished difference Result 2012 states and 2524 transitions. [2021-02-22 00:44:59,285 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2021-02-22 00:44:59,285 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 221 [2021-02-22 00:44:59,286 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-22 00:44:59,295 INFO L225 Difference]: With dead ends: 2012 [2021-02-22 00:44:59,295 INFO L226 Difference]: Without dead ends: 1563 [2021-02-22 00:44:59,298 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 69 GetRequests, 43 SyntacticMatches, 2 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 176 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=163, Invalid=487, Unknown=0, NotChecked=0, Total=650 [2021-02-22 00:44:59,300 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1563 states. [2021-02-22 00:44:59,765 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1563 to 986. [2021-02-22 00:44:59,766 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 986 states. [2021-02-22 00:44:59,771 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 986 states to 986 states and 1098 transitions. [2021-02-22 00:44:59,771 INFO L78 Accepts]: Start accepts. Automaton has 986 states and 1098 transitions. Word has length 221 [2021-02-22 00:44:59,772 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-22 00:44:59,772 INFO L480 AbstractCegarLoop]: Abstraction has 986 states and 1098 transitions. [2021-02-22 00:44:59,772 INFO L481 AbstractCegarLoop]: Interpolant automaton has 8 states. [2021-02-22 00:44:59,772 INFO L276 IsEmpty]: Start isEmpty. Operand 986 states and 1098 transitions. [2021-02-22 00:44:59,776 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 227 [2021-02-22 00:44:59,776 INFO L414 BasicCegarLoop]: Found error trace [2021-02-22 00:44:59,776 INFO L422 BasicCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-02-22 00:44:59,777 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-02-22 00:44:59,777 INFO L428 AbstractCegarLoop]: === Iteration 10 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-22 00:44:59,777 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-22 00:44:59,777 INFO L82 PathProgramCache]: Analyzing trace with hash -2142282658, now seen corresponding path program 1 times [2021-02-22 00:44:59,777 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-22 00:44:59,778 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1813264454] [2021-02-22 00:44:59,778 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-22 00:44:59,781 INFO L218 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2021-02-22 00:44:59,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 00:44:59,838 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 00:44:59,840 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 00:44:59,842 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 00:44:59,843 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-22 00:44:59,846 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 00:44:59,846 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-22 00:44:59,850 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 00:44:59,850 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 00:44:59,851 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 00:44:59,851 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-22 00:44:59,856 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 00:44:59,856 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 00:45:00,136 WARN L202 SmtUtils]: Spent 263.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2021-02-22 00:45:00,137 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-22 00:45:00,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 00:45:00,163 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 00:45:00,164 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 00:45:00,168 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2021-02-22 00:45:00,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 00:45:00,170 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 00:45:00,170 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 00:45:00,170 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-02-22 00:45:00,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 00:45:00,172 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 00:45:00,172 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 00:45:00,172 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2021-02-22 00:45:00,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 00:45:00,176 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 00:45:00,177 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 00:45:00,178 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 00:45:00,178 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-22 00:45:00,190 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 00:45:00,191 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-22 00:45:00,203 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2021-02-22 00:45:00,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 00:45:00,205 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 00:45:00,205 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 00:45:00,216 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2021-02-22 00:45:00,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 00:45:00,218 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 00:45:00,218 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 00:45:00,230 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2021-02-22 00:45:00,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 00:45:00,233 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 00:45:00,233 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 00:45:00,234 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 00:45:00,234 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-22 00:45:00,258 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2021-02-22 00:45:00,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 00:45:00,261 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 00:45:00,261 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 00:45:00,274 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2021-02-22 00:45:00,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 00:45:00,282 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 00:45:00,283 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 00:45:00,283 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 00:45:00,284 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-22 00:45:00,297 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-02-22 00:45:00,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 00:45:00,300 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 00:45:00,300 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 00:45:00,301 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-02-22 00:45:00,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 00:45:00,303 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 00:45:00,303 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 00:45:00,303 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2021-02-22 00:45:00,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 00:45:00,314 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 00:45:00,314 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 00:45:00,318 WARN L141 QuantifierPusher]: treesize reduction 5, result has 77.3 percent of original size [2021-02-22 00:45:00,318 WARN L147 QuantifierPusher]: treesize reduction 5, result has 77.3 percent of original size 17 [2021-02-22 00:45:00,345 WARN L141 QuantifierPusher]: treesize reduction 5, result has 77.3 percent of original size [2021-02-22 00:45:00,346 WARN L147 QuantifierPusher]: treesize reduction 5, result has 77.3 percent of original size 17 [2021-02-22 00:45:00,373 WARN L141 QuantifierPusher]: treesize reduction 9, result has 50.0 percent of original size [2021-02-22 00:45:00,374 WARN L147 QuantifierPusher]: treesize reduction 9, result has 50.0 percent of original size 9 [2021-02-22 00:45:00,387 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-02-22 00:45:00,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 00:45:00,395 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 00:45:00,395 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 00:45:00,396 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 00:45:00,396 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-22 00:45:00,417 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 00:45:00,417 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-22 00:45:00,438 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 00:45:00,439 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-22 00:45:00,462 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-02-22 00:45:00,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 00:45:00,467 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 00:45:00,468 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 00:45:00,469 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 00:45:00,469 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-22 00:45:00,494 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 00:45:00,494 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-22 00:45:00,520 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2021-02-22 00:45:00,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 00:45:00,523 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 00:45:00,523 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 00:45:00,529 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 204 [2021-02-22 00:45:00,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 00:45:00,531 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 00:45:00,531 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 00:45:00,531 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 214 [2021-02-22 00:45:00,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 00:45:00,533 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 00:45:00,533 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 00:45:00,627 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-22 00:45:00,627 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1813264454] [2021-02-22 00:45:00,627 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-22 00:45:00,627 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [21] imperfect sequences [] total 21 [2021-02-22 00:45:00,627 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1520981406] [2021-02-22 00:45:00,628 INFO L460 AbstractCegarLoop]: Interpolant automaton has 21 states [2021-02-22 00:45:00,628 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-02-22 00:45:00,629 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2021-02-22 00:45:00,629 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=46, Invalid=374, Unknown=0, NotChecked=0, Total=420 [2021-02-22 00:45:00,629 INFO L87 Difference]: Start difference. First operand 986 states and 1098 transitions. Second operand 21 states. [2021-02-22 00:45:01,345 WARN L202 SmtUtils]: Spent 331.00 ms on a formula simplification that was a NOOP. DAG size: 204 [2021-02-22 00:45:01,863 WARN L202 SmtUtils]: Spent 345.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2021-02-22 00:45:02,259 WARN L202 SmtUtils]: Spent 358.00 ms on a formula simplification that was a NOOP. DAG size: 211 [2021-02-22 00:45:02,667 WARN L202 SmtUtils]: Spent 344.00 ms on a formula simplification that was a NOOP. DAG size: 207 [2021-02-22 00:45:03,023 WARN L202 SmtUtils]: Spent 307.00 ms on a formula simplification that was a NOOP. DAG size: 209 [2021-02-22 00:45:03,412 WARN L202 SmtUtils]: Spent 351.00 ms on a formula simplification that was a NOOP. DAG size: 207 [2021-02-22 00:45:04,605 WARN L202 SmtUtils]: Spent 366.00 ms on a formula simplification that was a NOOP. DAG size: 204 [2021-02-22 00:45:06,460 WARN L202 SmtUtils]: Spent 356.00 ms on a formula simplification that was a NOOP. DAG size: 207 [2021-02-22 00:45:06,905 WARN L202 SmtUtils]: Spent 370.00 ms on a formula simplification that was a NOOP. DAG size: 210 [2021-02-22 00:45:07,397 WARN L202 SmtUtils]: Spent 335.00 ms on a formula simplification that was a NOOP. DAG size: 207 [2021-02-22 00:45:07,837 WARN L202 SmtUtils]: Spent 346.00 ms on a formula simplification that was a NOOP. DAG size: 207 [2021-02-22 00:45:08,246 WARN L202 SmtUtils]: Spent 369.00 ms on a formula simplification that was a NOOP. DAG size: 210 [2021-02-22 00:45:08,666 WARN L202 SmtUtils]: Spent 365.00 ms on a formula simplification that was a NOOP. DAG size: 210 [2021-02-22 00:45:09,080 WARN L202 SmtUtils]: Spent 373.00 ms on a formula simplification that was a NOOP. DAG size: 207 [2021-02-22 00:45:09,506 WARN L202 SmtUtils]: Spent 366.00 ms on a formula simplification that was a NOOP. DAG size: 210 [2021-02-22 00:45:09,955 WARN L202 SmtUtils]: Spent 343.00 ms on a formula simplification that was a NOOP. DAG size: 207 [2021-02-22 00:45:10,474 WARN L202 SmtUtils]: Spent 363.00 ms on a formula simplification that was a NOOP. DAG size: 210 [2021-02-22 00:45:10,933 WARN L202 SmtUtils]: Spent 342.00 ms on a formula simplification that was a NOOP. DAG size: 207 [2021-02-22 00:45:11,391 WARN L202 SmtUtils]: Spent 379.00 ms on a formula simplification that was a NOOP. DAG size: 210 [2021-02-22 00:45:12,242 WARN L202 SmtUtils]: Spent 678.00 ms on a formula simplification. DAG size of input: 213 DAG size of output: 206 [2021-02-22 00:45:13,155 WARN L202 SmtUtils]: Spent 696.00 ms on a formula simplification. DAG size of input: 218 DAG size of output: 208 [2021-02-22 00:45:13,923 WARN L202 SmtUtils]: Spent 674.00 ms on a formula simplification. DAG size of input: 213 DAG size of output: 206 [2021-02-22 00:45:17,462 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-22 00:45:17,462 INFO L93 Difference]: Finished difference Result 2379 states and 2865 transitions. [2021-02-22 00:45:17,463 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 47 states. [2021-02-22 00:45:17,463 INFO L78 Accepts]: Start accepts. Automaton has 21 states. Word has length 226 [2021-02-22 00:45:17,468 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-22 00:45:17,476 INFO L225 Difference]: With dead ends: 2379 [2021-02-22 00:45:17,476 INFO L226 Difference]: Without dead ends: 1508 [2021-02-22 00:45:17,481 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 114 GetRequests, 52 SyntacticMatches, 1 SemanticMatches, 61 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 950 ImplicationChecksByTransitivity, 10.4s TimeCoverageRelationStatistics Valid=737, Invalid=3169, Unknown=0, NotChecked=0, Total=3906 [2021-02-22 00:45:17,483 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1508 states. [2021-02-22 00:45:18,075 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1508 to 943. [2021-02-22 00:45:18,075 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 943 states. [2021-02-22 00:45:18,079 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 943 states to 943 states and 1036 transitions. [2021-02-22 00:45:18,080 INFO L78 Accepts]: Start accepts. Automaton has 943 states and 1036 transitions. Word has length 226 [2021-02-22 00:45:18,081 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-22 00:45:18,081 INFO L480 AbstractCegarLoop]: Abstraction has 943 states and 1036 transitions. [2021-02-22 00:45:18,081 INFO L481 AbstractCegarLoop]: Interpolant automaton has 21 states. [2021-02-22 00:45:18,081 INFO L276 IsEmpty]: Start isEmpty. Operand 943 states and 1036 transitions. [2021-02-22 00:45:18,085 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 278 [2021-02-22 00:45:18,085 INFO L414 BasicCegarLoop]: Found error trace [2021-02-22 00:45:18,086 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-02-22 00:45:18,086 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2021-02-22 00:45:18,086 INFO L428 AbstractCegarLoop]: === Iteration 11 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-22 00:45:18,087 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-22 00:45:18,088 INFO L82 PathProgramCache]: Analyzing trace with hash 703121105, now seen corresponding path program 1 times [2021-02-22 00:45:18,088 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-22 00:45:18,088 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1022987087] [2021-02-22 00:45:18,088 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-22 00:45:18,177 WARN L141 QuantifierPusher]: treesize reduction 80, result has 1.2 percent of original size [2021-02-22 00:45:18,178 WARN L147 QuantifierPusher]: treesize reduction 80, result has 1.2 percent of original size 1 [2021-02-22 00:45:18,185 WARN L141 QuantifierPusher]: treesize reduction 80, result has 1.2 percent of original size [2021-02-22 00:45:18,186 WARN L147 QuantifierPusher]: treesize reduction 80, result has 1.2 percent of original size 1 [2021-02-22 00:45:18,192 WARN L141 QuantifierPusher]: treesize reduction 2, result has 80.0 percent of original size [2021-02-22 00:45:18,220 WARN L147 QuantifierPusher]: treesize reduction 2, result has 80.0 percent of original size 8 [2021-02-22 00:45:18,242 WARN L141 QuantifierPusher]: treesize reduction 14, result has 76.3 percent of original size [2021-02-22 00:45:18,246 WARN L147 QuantifierPusher]: treesize reduction 14, result has 76.3 percent of original size 45 [2021-02-22 00:45:18,250 WARN L141 QuantifierPusher]: treesize reduction 80, result has 1.2 percent of original size [2021-02-22 00:45:18,250 WARN L147 QuantifierPusher]: treesize reduction 80, result has 1.2 percent of original size 1 [2021-02-22 00:45:18,254 WARN L141 QuantifierPusher]: treesize reduction 80, result has 1.2 percent of original size [2021-02-22 00:45:18,254 WARN L147 QuantifierPusher]: treesize reduction 80, result has 1.2 percent of original size 1 [2021-02-22 00:45:18,257 WARN L141 QuantifierPusher]: treesize reduction 2, result has 80.0 percent of original size [2021-02-22 00:45:18,258 WARN L147 QuantifierPusher]: treesize reduction 2, result has 80.0 percent of original size 8 [2021-02-22 00:45:18,261 WARN L141 QuantifierPusher]: treesize reduction 14, result has 76.3 percent of original size [2021-02-22 00:45:18,264 WARN L147 QuantifierPusher]: treesize reduction 14, result has 76.3 percent of original size 45 [2021-02-22 00:45:18,267 WARN L141 QuantifierPusher]: treesize reduction 80, result has 1.2 percent of original size [2021-02-22 00:45:18,267 WARN L147 QuantifierPusher]: treesize reduction 80, result has 1.2 percent of original size 1 [2021-02-22 00:45:18,270 WARN L141 QuantifierPusher]: treesize reduction 80, result has 1.2 percent of original size [2021-02-22 00:45:18,271 WARN L147 QuantifierPusher]: treesize reduction 80, result has 1.2 percent of original size 1 [2021-02-22 00:45:18,273 WARN L141 QuantifierPusher]: treesize reduction 2, result has 80.0 percent of original size [2021-02-22 00:45:18,275 WARN L147 QuantifierPusher]: treesize reduction 2, result has 80.0 percent of original size 8 [2021-02-22 00:45:18,278 WARN L141 QuantifierPusher]: treesize reduction 14, result has 76.3 percent of original size [2021-02-22 00:45:18,280 WARN L147 QuantifierPusher]: treesize reduction 14, result has 76.3 percent of original size 45 [2021-02-22 00:45:18,283 WARN L141 QuantifierPusher]: treesize reduction 11, result has 86.4 percent of original size [2021-02-22 00:45:18,288 WARN L147 QuantifierPusher]: treesize reduction 11, result has 86.4 percent of original size 70 [2021-02-22 00:45:18,292 WARN L141 QuantifierPusher]: treesize reduction 11, result has 86.4 percent of original size [2021-02-22 00:45:18,296 WARN L147 QuantifierPusher]: treesize reduction 11, result has 86.4 percent of original size 70 [2021-02-22 00:45:18,345 WARN L141 QuantifierPusher]: treesize reduction 41, result has 16.3 percent of original size [2021-02-22 00:45:18,347 WARN L147 QuantifierPusher]: treesize reduction 41, result has 16.3 percent of original size 8 [2021-02-22 00:45:18,349 WARN L141 QuantifierPusher]: treesize reduction 14, result has 76.3 percent of original size [2021-02-22 00:45:18,352 WARN L147 QuantifierPusher]: treesize reduction 14, result has 76.3 percent of original size 45 [2021-02-22 00:45:18,355 WARN L141 QuantifierPusher]: treesize reduction 11, result has 86.4 percent of original size [2021-02-22 00:45:18,360 WARN L147 QuantifierPusher]: treesize reduction 11, result has 86.4 percent of original size 70 [2021-02-22 00:45:18,363 WARN L141 QuantifierPusher]: treesize reduction 11, result has 86.4 percent of original size [2021-02-22 00:45:18,368 WARN L147 QuantifierPusher]: treesize reduction 11, result has 86.4 percent of original size 70 [2021-02-22 00:45:18,413 WARN L141 QuantifierPusher]: treesize reduction 41, result has 16.3 percent of original size [2021-02-22 00:45:18,415 WARN L147 QuantifierPusher]: treesize reduction 41, result has 16.3 percent of original size 8 [2021-02-22 00:45:18,418 WARN L141 QuantifierPusher]: treesize reduction 14, result has 76.3 percent of original size [2021-02-22 00:45:18,421 WARN L147 QuantifierPusher]: treesize reduction 14, result has 76.3 percent of original size 45 [2021-02-22 00:45:18,423 WARN L141 QuantifierPusher]: treesize reduction 80, result has 1.2 percent of original size [2021-02-22 00:45:18,424 WARN L147 QuantifierPusher]: treesize reduction 80, result has 1.2 percent of original size 1 [2021-02-22 00:45:18,426 WARN L141 QuantifierPusher]: treesize reduction 80, result has 1.2 percent of original size [2021-02-22 00:45:18,427 WARN L147 QuantifierPusher]: treesize reduction 80, result has 1.2 percent of original size 1 [2021-02-22 00:45:18,429 WARN L141 QuantifierPusher]: treesize reduction 2, result has 80.0 percent of original size [2021-02-22 00:45:18,431 WARN L147 QuantifierPusher]: treesize reduction 2, result has 80.0 percent of original size 8 [2021-02-22 00:45:18,436 WARN L141 QuantifierPusher]: treesize reduction 14, result has 76.3 percent of original size [2021-02-22 00:45:18,439 WARN L147 QuantifierPusher]: treesize reduction 14, result has 76.3 percent of original size 45 [2021-02-22 00:45:18,443 WARN L141 QuantifierPusher]: treesize reduction 11, result has 86.4 percent of original size [2021-02-22 00:45:18,454 WARN L147 QuantifierPusher]: treesize reduction 11, result has 86.4 percent of original size 70 [2021-02-22 00:45:18,457 WARN L141 QuantifierPusher]: treesize reduction 11, result has 86.4 percent of original size [2021-02-22 00:45:18,463 WARN L147 QuantifierPusher]: treesize reduction 11, result has 86.4 percent of original size 70 [2021-02-22 00:45:18,511 WARN L141 QuantifierPusher]: treesize reduction 6, result has 87.8 percent of original size [2021-02-22 00:45:18,516 INFO L723 QuantifierPusher]: Distributing 10 disjuncts over 3 conjuncts [2021-02-22 00:45:18,522 INFO L730 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 00:45:18,523 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-02-22 00:45:18,526 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 00:45:18,533 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 115 [2021-02-22 00:45:18,537 WARN L147 QuantifierPusher]: treesize reduction 6, result has 87.8 percent of original size 43 [2021-02-22 00:45:18,544 WARN L141 QuantifierPusher]: treesize reduction 14, result has 89.3 percent of original size [2021-02-22 00:45:18,549 WARN L147 QuantifierPusher]: treesize reduction 14, result has 89.3 percent of original size 117 [2021-02-22 00:45:18,553 WARN L141 QuantifierPusher]: treesize reduction 11, result has 86.4 percent of original size [2021-02-22 00:45:18,557 WARN L147 QuantifierPusher]: treesize reduction 11, result has 86.4 percent of original size 70 [2021-02-22 00:45:18,561 WARN L141 QuantifierPusher]: treesize reduction 11, result has 86.4 percent of original size [2021-02-22 00:45:18,565 WARN L147 QuantifierPusher]: treesize reduction 11, result has 86.4 percent of original size 70 [2021-02-22 00:45:18,615 WARN L141 QuantifierPusher]: treesize reduction 41, result has 16.3 percent of original size [2021-02-22 00:45:18,616 WARN L147 QuantifierPusher]: treesize reduction 41, result has 16.3 percent of original size 8 [2021-02-22 00:45:18,619 WARN L141 QuantifierPusher]: treesize reduction 14, result has 76.3 percent of original size [2021-02-22 00:45:18,622 WARN L147 QuantifierPusher]: treesize reduction 14, result has 76.3 percent of original size 45 [2021-02-22 00:45:18,622 INFO L206 tedInterpolationCore]: Starting analysis with loop acceleration approximation UNDERAPPROXIMATION [2021-02-22 00:45:18,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-02-22 00:45:18,717 INFO L223 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-02-22 00:45:18,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-02-22 00:45:18,801 INFO L223 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-02-22 00:45:19,028 INFO L173 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2021-02-22 00:45:19,028 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2021-02-22 00:45:19,029 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2021-02-22 00:45:19,058 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.02 12:45:19 BoogieIcfgContainer [2021-02-22 00:45:19,058 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-02-22 00:45:19,059 INFO L168 Benchmark]: Toolchain (without parser) took 70726.71 ms. Allocated memory was 151.0 MB in the beginning and 656.4 MB in the end (delta: 505.4 MB). Free memory was 126.7 MB in the beginning and 273.2 MB in the end (delta: -146.5 MB). Peak memory consumption was 361.2 MB. Max. memory is 8.0 GB. [2021-02-22 00:45:19,059 INFO L168 Benchmark]: CDTParser took 0.21 ms. Allocated memory is still 151.0 MB. Free memory is still 124.1 MB. There was no memory consumed. Max. memory is 8.0 GB. [2021-02-22 00:45:19,059 INFO L168 Benchmark]: CACSL2BoogieTranslator took 564.84 ms. Allocated memory is still 151.0 MB. Free memory was 125.7 MB in the beginning and 105.2 MB in the end (delta: 20.5 MB). Peak memory consumption was 21.0 MB. Max. memory is 8.0 GB. [2021-02-22 00:45:19,060 INFO L168 Benchmark]: Boogie Preprocessor took 117.89 ms. Allocated memory is still 151.0 MB. Free memory was 105.2 MB in the beginning and 101.4 MB in the end (delta: 3.8 MB). Peak memory consumption was 3.1 MB. Max. memory is 8.0 GB. [2021-02-22 00:45:19,060 INFO L168 Benchmark]: RCFGBuilder took 1522.10 ms. Allocated memory was 151.0 MB in the beginning and 181.4 MB in the end (delta: 30.4 MB). Free memory was 101.4 MB in the beginning and 125.5 MB in the end (delta: -24.2 MB). Peak memory consumption was 35.5 MB. Max. memory is 8.0 GB. [2021-02-22 00:45:19,060 INFO L168 Benchmark]: TraceAbstraction took 68502.32 ms. Allocated memory was 181.4 MB in the beginning and 656.4 MB in the end (delta: 475.0 MB). Free memory was 125.0 MB in the beginning and 273.2 MB in the end (delta: -148.2 MB). Peak memory consumption was 326.8 MB. Max. memory is 8.0 GB. [2021-02-22 00:45:19,061 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.21 ms. Allocated memory is still 151.0 MB. Free memory is still 124.1 MB. There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 564.84 ms. Allocated memory is still 151.0 MB. Free memory was 125.7 MB in the beginning and 105.2 MB in the end (delta: 20.5 MB). Peak memory consumption was 21.0 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 117.89 ms. Allocated memory is still 151.0 MB. Free memory was 105.2 MB in the beginning and 101.4 MB in the end (delta: 3.8 MB). Peak memory consumption was 3.1 MB. Max. memory is 8.0 GB. * RCFGBuilder took 1522.10 ms. Allocated memory was 151.0 MB in the beginning and 181.4 MB in the end (delta: 30.4 MB). Free memory was 101.4 MB in the beginning and 125.5 MB in the end (delta: -24.2 MB). Peak memory consumption was 35.5 MB. Max. memory is 8.0 GB. * TraceAbstraction took 68502.32 ms. Allocated memory was 181.4 MB in the beginning and 656.4 MB in the end (delta: 475.0 MB). Free memory was 125.0 MB in the beginning and 273.2 MB in the end (delta: -148.2 MB). Peak memory consumption was 326.8 MB. Max. memory is 8.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 766]: a call to reach_error is reachable a call to reach_error is reachable We found a FailurePath: [L211] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L415] int waterLevel = 1; [L416] int methaneLevelCritical = 0; [L583] int pumpRunning = 0; [L584] int systemActive = 1; [L835] int cleanupTimeShifts = 4; [L908] int retValue_acc ; [L909] int tmp ; [L913] FCALL select_helpers() [L914] FCALL select_features() [L915] CALL, EXPR valid_product() [L826] int retValue_acc ; [L829] retValue_acc = 1 [L830] return (retValue_acc); [L915] RET, EXPR valid_product() [L915] tmp = valid_product() [L917] COND TRUE \read(tmp) [L919] FCALL setup() [L920] CALL runTest() [L902] CALL test() [L513] int splverifierCounter ; [L514] int tmp ; [L515] int tmp___0 ; [L516] int tmp___1 ; [L517] int tmp___2 ; [L520] splverifierCounter = 0 [L522] COND TRUE 1 [L524] COND TRUE splverifierCounter < 4 [L530] tmp = __VERIFIER_nondet_int() [L532] COND TRUE \read(tmp) [L534] CALL waterRise() [L433] COND TRUE waterLevel < 2 [L434] waterLevel = waterLevel + 1 [L534] RET waterRise() [L540] tmp___0 = __VERIFIER_nondet_int() [L542] COND FALSE !(\read(tmp___0)) [L550] tmp___2 = __VERIFIER_nondet_int() [L552] COND TRUE \read(tmp___2) [L554] CALL startSystem() [L757] systemActive = 1 [L554] RET startSystem() [L567] CALL timeShift() [L591] COND FALSE !(\read(pumpRunning)) [L598] COND TRUE \read(systemActive) [L600] CALL processEnvironment() [L620] int tmp ; [L623] COND TRUE ! pumpRunning [L625] CALL, EXPR isHighWaterLevel() [L735] int retValue_acc ; [L736] int tmp ; [L737] int tmp___0 ; [L741] CALL, EXPR isHighWaterSensorDry() [L495] int retValue_acc ; [L498] COND FALSE !(waterLevel < 2) [L502] retValue_acc = 0 [L503] return (retValue_acc); [L741] RET, EXPR isHighWaterSensorDry() [L741] tmp = isHighWaterSensorDry() [L743] COND FALSE !(\read(tmp)) [L746] tmp___0 = 1 [L748] retValue_acc = tmp___0 [L749] return (retValue_acc); [L625] RET, EXPR isHighWaterLevel() [L625] tmp = isHighWaterLevel() [L627] COND TRUE \read(tmp) [L629] CALL activatePump() [L654] int tmp ; [L658] CALL, EXPR isMethaneAlarm() [L679] int retValue_acc ; [L683] CALL, EXPR isMethaneLevelCritical() [L454] int retValue_acc ; [L457] retValue_acc = methaneLevelCritical [L458] return (retValue_acc); [L683] RET, EXPR isMethaneLevelCritical() [L683] retValue_acc = isMethaneLevelCritical() [L685] return (retValue_acc); [L658] RET, EXPR isMethaneAlarm() [L658] tmp = isMethaneAlarm() [L660] COND FALSE !(\read(tmp)) [L664] CALL activatePump__wrappee__highWaterSensor() [L648] pumpRunning = 1 [L664] RET activatePump__wrappee__highWaterSensor() [L629] RET activatePump() [L600] RET processEnvironment() [L606] CALL __utac_acc__Specification1_spec__1() [L772] int tmp ; [L773] int tmp___0 ; [L777] CALL, EXPR isMethaneLevelCritical() [L454] int retValue_acc ; [L457] retValue_acc = methaneLevelCritical [L458] return (retValue_acc); [L777] RET, EXPR isMethaneLevelCritical() [L777] tmp = isMethaneLevelCritical() [L779] COND FALSE !(\read(tmp)) [L606] RET __utac_acc__Specification1_spec__1() [L567] RET timeShift() [L522] COND TRUE 1 [L524] COND TRUE splverifierCounter < 4 [L530] tmp = __VERIFIER_nondet_int() [L532] COND FALSE !(\read(tmp)) [L540] tmp___0 = __VERIFIER_nondet_int() [L542] COND TRUE \read(tmp___0) [L544] CALL changeMethaneLevel() [L445] COND FALSE !(\read(methaneLevelCritical)) [L448] methaneLevelCritical = 1 [L544] RET changeMethaneLevel() [L550] tmp___2 = __VERIFIER_nondet_int() [L552] COND TRUE \read(tmp___2) [L554] CALL startSystem() [L757] systemActive = 1 [L554] RET startSystem() [L567] CALL timeShift() [L591] COND TRUE \read(pumpRunning) [L593] CALL lowerWaterLevel() [L421] COND TRUE waterLevel > 0 [L422] waterLevel = waterLevel - 1 [L593] RET lowerWaterLevel() [L598] COND TRUE \read(systemActive) [L600] CALL processEnvironment() [L620] int tmp ; [L623] COND FALSE !(! pumpRunning) [L638] FCALL processEnvironment__wrappee__base() [L600] RET processEnvironment() [L606] CALL __utac_acc__Specification1_spec__1() [L772] int tmp ; [L773] int tmp___0 ; [L777] CALL, EXPR isMethaneLevelCritical() [L454] int retValue_acc ; [L457] retValue_acc = methaneLevelCritical [L458] return (retValue_acc); [L777] RET, EXPR isMethaneLevelCritical() [L777] tmp = isMethaneLevelCritical() [L779] COND TRUE \read(tmp) [L781] CALL, EXPR isPumpRunning() [L690] int retValue_acc ; [L693] retValue_acc = pumpRunning [L694] return (retValue_acc); [L781] RET, EXPR isPumpRunning() [L781] tmp___0 = isPumpRunning() [L783] COND TRUE \read(tmp___0) [L785] CALL __automaton_fail() [L766] reach_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 40 procedures, 628 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 68.4s, OverallIterations: 11, TraceHistogramMax: 3, AutomataDifference: 57.8s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 2544 SDtfs, 7341 SDslu, 6534 SDs, 0 SdLazy, 13054 SolverSat, 2308 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 23.2s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 523 GetRequests, 309 SyntacticMatches, 3 SemanticMatches, 211 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1502 ImplicationChecksByTransitivity, 29.8s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=986occurred in iteration=9, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 2.7s AutomataMinimizationTime, 10 MinimizatonAttempts, 2705 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...