/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_spec4_product43.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.2.1-dev-b7b32d2 [2021-02-22 01:13:49,565 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-02-22 01:13:49,569 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-02-22 01:13:49,627 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-02-22 01:13:49,627 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-02-22 01:13:49,632 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-02-22 01:13:49,635 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-02-22 01:13:49,644 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-02-22 01:13:49,647 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-02-22 01:13:49,654 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-02-22 01:13:49,655 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-02-22 01:13:49,657 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-02-22 01:13:49,658 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-02-22 01:13:49,660 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-02-22 01:13:49,663 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-02-22 01:13:49,682 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-02-22 01:13:49,683 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-02-22 01:13:49,684 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-02-22 01:13:49,686 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-02-22 01:13:49,689 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-02-22 01:13:49,690 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-02-22 01:13:49,691 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-02-22 01:13:49,693 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-02-22 01:13:49,694 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-02-22 01:13:49,697 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-02-22 01:13:49,697 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-02-22 01:13:49,698 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-02-22 01:13:49,699 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-02-22 01:13:49,699 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-02-22 01:13:49,700 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-02-22 01:13:49,701 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-02-22 01:13:49,702 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-02-22 01:13:49,703 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-02-22 01:13:49,704 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-02-22 01:13:49,706 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-02-22 01:13:49,706 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-02-22 01:13:49,707 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-02-22 01:13:49,707 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-02-22 01:13:49,707 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-02-22 01:13:49,709 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-02-22 01:13:49,709 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-02-22 01:13:49,711 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 01:13:49,723 INFO L113 SettingsManager]: Loading preferences was successful [2021-02-22 01:13:49,723 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-02-22 01:13:49,725 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-02-22 01:13:49,725 INFO L138 SettingsManager]: * sizeof long=4 [2021-02-22 01:13:49,725 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-02-22 01:13:49,725 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-02-22 01:13:49,726 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-02-22 01:13:49,726 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-02-22 01:13:49,726 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-02-22 01:13:49,726 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-02-22 01:13:49,726 INFO L138 SettingsManager]: * sizeof long double=12 [2021-02-22 01:13:49,727 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-02-22 01:13:49,727 INFO L138 SettingsManager]: * Use constant arrays=true [2021-02-22 01:13:49,727 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-02-22 01:13:49,728 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-02-22 01:13:49,728 INFO L138 SettingsManager]: * Size of a code block=SingleStatement [2021-02-22 01:13:49,728 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-02-22 01:13:49,728 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-02-22 01:13:49,729 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-02-22 01:13:49,729 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-02-22 01:13:49,729 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=AcceleratedInterpolation [2021-02-22 01:13:49,729 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-02-22 01:13:49,730 INFO L138 SettingsManager]: * Loop acceleration method that is used by accelerated interpolation=WERNER_OVERAPPROX [2021-02-22 01:13:49,730 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-02-22 01:13:50,125 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-02-22 01:13:50,150 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-02-22 01:13:50,153 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-02-22 01:13:50,155 INFO L271 PluginConnector]: Initializing CDTParser... [2021-02-22 01:13:50,155 INFO L275 PluginConnector]: CDTParser initialized [2021-02-22 01:13:50,156 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec4_product43.cil.c [2021-02-22 01:13:50,245 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8bbfd1e57/a8c8120f5d7a424bbf90ca0331d07973/FLAG0f88ae225 [2021-02-22 01:13:50,971 INFO L306 CDTParser]: Found 1 translation units. [2021-02-22 01:13:50,972 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/minepump_spec4_product43.cil.c [2021-02-22 01:13:50,994 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8bbfd1e57/a8c8120f5d7a424bbf90ca0331d07973/FLAG0f88ae225 [2021-02-22 01:13:51,218 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8bbfd1e57/a8c8120f5d7a424bbf90ca0331d07973 [2021-02-22 01:13:51,221 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-02-22 01:13:51,235 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2021-02-22 01:13:51,239 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-02-22 01:13:51,239 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-02-22 01:13:51,243 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-02-22 01:13:51,244 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.02 01:13:51" (1/1) ... [2021-02-22 01:13:51,246 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@af56948 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.02 01:13:51, skipping insertion in model container [2021-02-22 01:13:51,246 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.02 01:13:51" (1/1) ... [2021-02-22 01:13:51,255 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-02-22 01:13:51,334 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-02-22 01:13:51,527 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_spec4_product43.cil.c[4780,4793] [2021-02-22 01:13:51,663 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-02-22 01:13:51,681 INFO L203 MainTranslator]: Completed pre-run [2021-02-22 01:13:51,750 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_spec4_product43.cil.c[4780,4793] [2021-02-22 01:13:51,811 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-02-22 01:13:51,859 INFO L208 MainTranslator]: Completed translation [2021-02-22 01:13:51,859 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.02 01:13:51 WrapperNode [2021-02-22 01:13:51,859 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-02-22 01:13:51,861 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-02-22 01:13:51,861 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-02-22 01:13:51,861 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-02-22 01:13:51,877 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.02 01:13:51" (1/1) ... [2021-02-22 01:13:51,878 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.02 01:13:51" (1/1) ... [2021-02-22 01:13:51,898 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.02 01:13:51" (1/1) ... [2021-02-22 01:13:51,899 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.02 01:13:51" (1/1) ... [2021-02-22 01:13:51,937 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.02 01:13:51" (1/1) ... [2021-02-22 01:13:51,948 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.02 01:13:51" (1/1) ... [2021-02-22 01:13:51,954 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.02 01:13:51" (1/1) ... [2021-02-22 01:13:51,961 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-02-22 01:13:51,962 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-02-22 01:13:51,963 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-02-22 01:13:51,963 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-02-22 01:13:51,964 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.02 01:13:51" (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 01:13:52,153 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2021-02-22 01:13:52,154 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-02-22 01:13:52,154 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2021-02-22 01:13:52,154 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2021-02-22 01:13:52,154 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2021-02-22 01:13:52,154 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2021-02-22 01:13:52,154 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2021-02-22 01:13:52,155 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2021-02-22 01:13:52,155 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump__wrappee__highWaterSensor [2021-02-22 01:13:52,156 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2021-02-22 01:13:52,156 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2021-02-22 01:13:52,156 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2021-02-22 01:13:52,156 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2021-02-22 01:13:52,157 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2021-02-22 01:13:52,157 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterLevel [2021-02-22 01:13:52,157 INFO L138 BoogieDeclarations]: Found implementation of procedure stopSystem [2021-02-22 01:13:52,158 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2021-02-22 01:13:52,158 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2021-02-22 01:13:52,159 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2021-02-22 01:13:52,161 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2021-02-22 01:13:52,161 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2021-02-22 01:13:52,161 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2021-02-22 01:13:52,161 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2021-02-22 01:13:52,162 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2021-02-22 01:13:52,162 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2021-02-22 01:13:52,162 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2021-02-22 01:13:52,162 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2021-02-22 01:13:52,162 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2021-02-22 01:13:52,162 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterSensorDry [2021-02-22 01:13:52,163 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2021-02-22 01:13:52,163 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2021-02-22 01:13:52,163 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2021-02-22 01:13:52,163 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2021-02-22 01:13:52,163 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2021-02-22 01:13:52,164 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2021-02-22 01:13:52,164 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2021-02-22 01:13:52,164 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2021-02-22 01:13:52,164 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2021-02-22 01:13:52,164 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2021-02-22 01:13:52,164 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification4_spec__1 [2021-02-22 01:13:52,165 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2021-02-22 01:13:52,165 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2021-02-22 01:13:52,165 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2021-02-22 01:13:52,165 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-02-22 01:13:52,165 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2021-02-22 01:13:52,165 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2021-02-22 01:13:52,166 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2021-02-22 01:13:52,166 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2021-02-22 01:13:52,166 INFO L130 BoogieDeclarations]: Found specification of procedure stopSystem [2021-02-22 01:13:52,166 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2021-02-22 01:13:52,166 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2021-02-22 01:13:52,166 INFO L130 BoogieDeclarations]: Found specification of procedure test [2021-02-22 01:13:52,166 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2021-02-22 01:13:52,167 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2021-02-22 01:13:52,167 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2021-02-22 01:13:52,167 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterSensorDry [2021-02-22 01:13:52,167 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2021-02-22 01:13:52,167 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2021-02-22 01:13:52,167 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2021-02-22 01:13:52,168 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2021-02-22 01:13:52,168 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification4_spec__1 [2021-02-22 01:13:52,168 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2021-02-22 01:13:52,168 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2021-02-22 01:13:52,169 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterLevel [2021-02-22 01:13:52,169 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump__wrappee__highWaterSensor [2021-02-22 01:13:52,169 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2021-02-22 01:13:52,169 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2021-02-22 01:13:52,169 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2021-02-22 01:13:52,169 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2021-02-22 01:13:52,170 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2021-02-22 01:13:52,170 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2021-02-22 01:13:52,170 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2021-02-22 01:13:52,170 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2021-02-22 01:13:52,171 INFO L130 BoogieDeclarations]: Found specification of procedure main [2021-02-22 01:13:52,171 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2021-02-22 01:13:52,171 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2021-02-22 01:13:52,171 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2021-02-22 01:13:52,172 INFO L130 BoogieDeclarations]: Found specification of procedure free [2021-02-22 01:13:52,172 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2021-02-22 01:13:52,172 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-02-22 01:13:52,172 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-02-22 01:13:52,173 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-02-22 01:13:52,173 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-02-22 01:13:52,173 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2021-02-22 01:13:52,174 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-02-22 01:13:52,175 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2021-02-22 01:13:52,175 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2021-02-22 01:13:52,175 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-02-22 01:13:52,175 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2021-02-22 01:13:52,175 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2021-02-22 01:13:52,176 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2021-02-22 01:13:52,176 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2021-02-22 01:13:52,176 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-02-22 01:13:52,177 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-02-22 01:13:53,819 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-02-22 01:13:53,820 INFO L299 CfgBuilder]: Removed 5 assume(true) statements. [2021-02-22 01:13:53,822 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.02 01:13:53 BoogieIcfgContainer [2021-02-22 01:13:53,823 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-02-22 01:13:53,824 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-02-22 01:13:53,825 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-02-22 01:13:53,828 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-02-22 01:13:53,829 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.02 01:13:51" (1/3) ... [2021-02-22 01:13:53,830 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1d34f85b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.02 01:13:53, skipping insertion in model container [2021-02-22 01:13:53,830 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.02 01:13:51" (2/3) ... [2021-02-22 01:13:53,830 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1d34f85b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.02 01:13:53, skipping insertion in model container [2021-02-22 01:13:53,830 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.02 01:13:53" (3/3) ... [2021-02-22 01:13:53,832 INFO L111 eAbstractionObserver]: Analyzing ICFG minepump_spec4_product43.cil.c [2021-02-22 01:13:53,839 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:AcceleratedInterpolation Determinization: PREDICATE_ABSTRACTION [2021-02-22 01:13:53,845 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2021-02-22 01:13:53,864 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-02-22 01:13:53,888 INFO L376 AbstractCegarLoop]: Interprodecural is true [2021-02-22 01:13:53,888 INFO L377 AbstractCegarLoop]: Hoare is true [2021-02-22 01:13:53,889 INFO L378 AbstractCegarLoop]: Compute interpolants for AcceleratedInterpolation [2021-02-22 01:13:53,889 INFO L379 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-02-22 01:13:53,889 INFO L380 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-02-22 01:13:53,889 INFO L381 AbstractCegarLoop]: Difference is false [2021-02-22 01:13:53,889 INFO L382 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-02-22 01:13:53,890 INFO L386 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-02-22 01:13:53,914 INFO L276 IsEmpty]: Start isEmpty. Operand 315 states. [2021-02-22 01:13:53,934 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 148 [2021-02-22 01:13:53,934 INFO L414 BasicCegarLoop]: Found error trace [2021-02-22 01:13:53,935 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 01:13:53,936 INFO L428 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-22 01:13:53,942 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-22 01:13:53,942 INFO L82 PathProgramCache]: Analyzing trace with hash -1329130714, now seen corresponding path program 1 times [2021-02-22 01:13:53,955 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-22 01:13:53,956 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [73457992] [2021-02-22 01:13:53,956 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-22 01:13:54,037 INFO L218 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2021-02-22 01:13:54,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 01:13:54,453 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 01:13:54,454 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 01:13:54,455 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 01:13:54,485 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 01:13:54,859 WARN L202 SmtUtils]: Spent 357.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2021-02-22 01:13:54,862 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-22 01:13:54,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 01:13:54,935 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 01:13:54,936 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 01:13:54,953 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2021-02-22 01:13:54,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 01:13:54,958 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 01:13:54,959 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 01:13:54,959 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-02-22 01:13:54,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 01:13:54,962 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 01:13:54,963 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 01:13:54,963 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2021-02-22 01:13:54,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 01:13:54,967 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 01:13:54,967 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 01:13:54,968 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2021-02-22 01:13:54,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 01:13:54,970 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 01:13:54,971 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 01:13:54,971 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2021-02-22 01:13:54,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 01:13:54,974 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 01:13:54,975 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 01:13:54,976 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2021-02-22 01:13:54,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 01:13:54,979 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 01:13:54,979 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 01:13:55,029 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 01:13:55,031 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [73457992] [2021-02-22 01:13:55,033 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-22 01:13:55,033 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-02-22 01:13:55,034 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [913488002] [2021-02-22 01:13:55,039 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-02-22 01:13:55,040 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-02-22 01:13:55,053 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-02-22 01:13:55,054 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-02-22 01:13:55,057 INFO L87 Difference]: Start difference. First operand 315 states. Second operand 3 states. [2021-02-22 01:13:56,759 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-22 01:13:56,759 INFO L93 Difference]: Finished difference Result 491 states and 578 transitions. [2021-02-22 01:13:56,761 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-02-22 01:13:56,762 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 147 [2021-02-22 01:13:56,764 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-22 01:13:56,780 INFO L225 Difference]: With dead ends: 491 [2021-02-22 01:13:56,780 INFO L226 Difference]: Without dead ends: 306 [2021-02-22 01:13:56,785 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 01:13:56,801 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 306 states. [2021-02-22 01:13:56,963 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 306 to 263. [2021-02-22 01:13:56,965 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 263 states. [2021-02-22 01:13:56,967 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 263 states to 263 states and 283 transitions. [2021-02-22 01:13:56,969 INFO L78 Accepts]: Start accepts. Automaton has 263 states and 283 transitions. Word has length 147 [2021-02-22 01:13:56,970 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-22 01:13:56,970 INFO L480 AbstractCegarLoop]: Abstraction has 263 states and 283 transitions. [2021-02-22 01:13:56,971 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2021-02-22 01:13:56,971 INFO L276 IsEmpty]: Start isEmpty. Operand 263 states and 283 transitions. [2021-02-22 01:13:56,975 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 149 [2021-02-22 01:13:56,976 INFO L414 BasicCegarLoop]: Found error trace [2021-02-22 01:13:56,976 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 01:13:56,976 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-02-22 01:13:56,976 INFO L428 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-22 01:13:56,977 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-22 01:13:56,977 INFO L82 PathProgramCache]: Analyzing trace with hash -305967401, now seen corresponding path program 1 times [2021-02-22 01:13:56,978 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-22 01:13:56,978 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [235566833] [2021-02-22 01:13:56,978 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-22 01:13:56,983 INFO L218 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2021-02-22 01:13:57,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 01:13:57,109 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 01:13:57,111 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 01:13:57,112 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 01:13:57,113 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-22 01:13:57,117 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 01:13:57,119 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 01:13:57,474 WARN L202 SmtUtils]: Spent 336.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2021-02-22 01:13:57,476 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-22 01:13:57,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 01:13:57,539 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 01:13:57,539 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 01:13:57,567 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2021-02-22 01:13:57,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 01:13:57,571 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 01:13:57,571 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 01:13:57,572 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-02-22 01:13:57,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 01:13:57,577 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 01:13:57,578 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 01:13:57,578 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2021-02-22 01:13:57,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 01:13:57,580 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 01:13:57,581 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 01:13:57,581 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2021-02-22 01:13:57,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 01:13:57,583 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 01:13:57,584 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 01:13:57,584 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2021-02-22 01:13:57,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 01:13:57,588 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 01:13:57,588 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 01:13:57,589 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2021-02-22 01:13:57,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 01:13:57,591 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 01:13:57,592 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 01:13:57,622 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 01:13:57,622 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [235566833] [2021-02-22 01:13:57,622 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-22 01:13:57,623 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-02-22 01:13:57,623 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1352042866] [2021-02-22 01:13:57,625 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-02-22 01:13:57,625 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-02-22 01:13:57,626 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-02-22 01:13:57,626 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-02-22 01:13:57,626 INFO L87 Difference]: Start difference. First operand 263 states and 283 transitions. Second operand 4 states. [2021-02-22 01:13:58,372 WARN L202 SmtUtils]: Spent 307.00 ms on a formula simplification that was a NOOP. DAG size: 205 [2021-02-22 01:13:59,447 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-22 01:13:59,448 INFO L93 Difference]: Finished difference Result 398 states and 442 transitions. [2021-02-22 01:13:59,448 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-02-22 01:13:59,448 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 148 [2021-02-22 01:13:59,450 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-22 01:13:59,462 INFO L225 Difference]: With dead ends: 398 [2021-02-22 01:13:59,462 INFO L226 Difference]: Without dead ends: 289 [2021-02-22 01:13:59,468 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 01:13:59,471 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 289 states. [2021-02-22 01:13:59,565 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 289 to 253. [2021-02-22 01:13:59,566 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 253 states. [2021-02-22 01:13:59,567 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 253 states to 253 states and 270 transitions. [2021-02-22 01:13:59,568 INFO L78 Accepts]: Start accepts. Automaton has 253 states and 270 transitions. Word has length 148 [2021-02-22 01:13:59,568 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-22 01:13:59,568 INFO L480 AbstractCegarLoop]: Abstraction has 253 states and 270 transitions. [2021-02-22 01:13:59,569 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2021-02-22 01:13:59,569 INFO L276 IsEmpty]: Start isEmpty. Operand 253 states and 270 transitions. [2021-02-22 01:13:59,571 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 158 [2021-02-22 01:13:59,572 INFO L414 BasicCegarLoop]: Found error trace [2021-02-22 01:13:59,572 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] [2021-02-22 01:13:59,572 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-02-22 01:13:59,572 INFO L428 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-22 01:13:59,573 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-22 01:13:59,573 INFO L82 PathProgramCache]: Analyzing trace with hash 153687360, now seen corresponding path program 1 times [2021-02-22 01:13:59,573 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-22 01:13:59,574 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [361745101] [2021-02-22 01:13:59,574 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-22 01:13:59,584 INFO L218 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2021-02-22 01:13:59,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 01:13:59,679 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 01:13:59,680 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-22 01:13:59,685 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 01:13:59,686 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-22 01:13:59,686 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 01:13:59,687 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-22 01:13:59,691 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 01:13:59,692 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-22 01:13:59,697 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 01:13:59,698 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-22 01:13:59,705 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 01:13:59,705 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-22 01:13:59,706 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 01:13:59,706 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-22 01:13:59,707 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 01:13:59,707 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 01:14:00,043 WARN L202 SmtUtils]: Spent 317.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2021-02-22 01:14:00,044 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-22 01:14:00,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 01:14:00,101 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 01:14:00,102 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 01:14:00,103 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 01:14:00,103 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-02-22 01:14:00,115 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2021-02-22 01:14:00,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 01:14:00,119 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 01:14:00,120 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 01:14:00,120 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-02-22 01:14:00,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 01:14:00,123 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 01:14:00,124 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 01:14:00,124 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2021-02-22 01:14:00,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 01:14:00,135 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 01:14:00,135 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 01:14:00,144 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 01:14:00,145 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-22 01:14:00,170 WARN L141 QuantifierPusher]: treesize reduction 22, result has 33.3 percent of original size [2021-02-22 01:14:00,171 WARN L147 QuantifierPusher]: treesize reduction 22, result has 33.3 percent of original size 11 [2021-02-22 01:14:00,190 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2021-02-22 01:14:00,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 01:14:00,193 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 01:14:00,194 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 01:14:00,194 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2021-02-22 01:14:00,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 01:14:00,198 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 01:14:00,199 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 01:14:00,199 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 145 [2021-02-22 01:14:00,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 01:14:00,207 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 01:14:00,210 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 01:14:00,266 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-22 01:14:00,267 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [361745101] [2021-02-22 01:14:00,267 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-22 01:14:00,267 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-02-22 01:14:00,267 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1284439283] [2021-02-22 01:14:00,268 INFO L460 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-02-22 01:14:00,269 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-02-22 01:14:00,269 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-02-22 01:14:00,270 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2021-02-22 01:14:00,270 INFO L87 Difference]: Start difference. First operand 253 states and 270 transitions. Second operand 9 states. [2021-02-22 01:14:01,021 WARN L202 SmtUtils]: Spent 327.00 ms on a formula simplification that was a NOOP. DAG size: 204 [2021-02-22 01:14:01,477 WARN L202 SmtUtils]: Spent 314.00 ms on a formula simplification that was a NOOP. DAG size: 207 [2021-02-22 01:14:01,849 WARN L202 SmtUtils]: Spent 353.00 ms on a formula simplification that was a NOOP. DAG size: 209 [2021-02-22 01:14:02,239 WARN L202 SmtUtils]: Spent 351.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2021-02-22 01:14:02,568 WARN L202 SmtUtils]: Spent 296.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2021-02-22 01:14:02,913 WARN L202 SmtUtils]: Spent 323.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2021-02-22 01:14:04,015 WARN L202 SmtUtils]: Spent 327.00 ms on a formula simplification that was a NOOP. DAG size: 205 [2021-02-22 01:14:06,256 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-22 01:14:06,256 INFO L93 Difference]: Finished difference Result 660 states and 749 transitions. [2021-02-22 01:14:06,256 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-02-22 01:14:06,257 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 157 [2021-02-22 01:14:06,258 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-22 01:14:06,262 INFO L225 Difference]: With dead ends: 660 [2021-02-22 01:14:06,262 INFO L226 Difference]: Without dead ends: 522 [2021-02-22 01:14:06,263 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 19 SyntacticMatches, 1 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 23 ImplicationChecksByTransitivity, 2.7s TimeCoverageRelationStatistics Valid=71, Invalid=169, Unknown=0, NotChecked=0, Total=240 [2021-02-22 01:14:06,265 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 522 states. [2021-02-22 01:14:06,473 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 522 to 443. [2021-02-22 01:14:06,474 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 443 states. [2021-02-22 01:14:06,477 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 443 states to 443 states and 487 transitions. [2021-02-22 01:14:06,477 INFO L78 Accepts]: Start accepts. Automaton has 443 states and 487 transitions. Word has length 157 [2021-02-22 01:14:06,478 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-22 01:14:06,481 INFO L480 AbstractCegarLoop]: Abstraction has 443 states and 487 transitions. [2021-02-22 01:14:06,481 INFO L481 AbstractCegarLoop]: Interpolant automaton has 9 states. [2021-02-22 01:14:06,481 INFO L276 IsEmpty]: Start isEmpty. Operand 443 states and 487 transitions. [2021-02-22 01:14:06,484 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 166 [2021-02-22 01:14:06,484 INFO L414 BasicCegarLoop]: Found error trace [2021-02-22 01:14:06,485 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] [2021-02-22 01:14:06,485 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-02-22 01:14:06,485 INFO L428 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-22 01:14:06,486 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-22 01:14:06,486 INFO L82 PathProgramCache]: Analyzing trace with hash 281694197, now seen corresponding path program 1 times [2021-02-22 01:14:06,486 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-22 01:14:06,486 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [353970062] [2021-02-22 01:14:06,487 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-22 01:14:06,490 INFO L218 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2021-02-22 01:14:06,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 01:14:06,554 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 01:14:06,554 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-22 01:14:06,557 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 01:14:06,558 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-22 01:14:06,559 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 01:14:06,559 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-22 01:14:06,560 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 01:14:06,560 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-22 01:14:06,561 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 01:14:06,561 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-22 01:14:06,562 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 01:14:06,562 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 01:14:06,855 WARN L202 SmtUtils]: Spent 284.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2021-02-22 01:14:06,856 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-22 01:14:06,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 01:14:06,969 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 01:14:06,971 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 01:14:06,972 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 01:14:06,974 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-22 01:14:06,979 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2021-02-22 01:14:06,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 01:14:06,988 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 01:14:06,989 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 01:14:06,989 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-02-22 01:14:06,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 01:14:06,992 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 01:14:06,993 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 01:14:06,993 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2021-02-22 01:14:06,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 01:14:06,997 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 01:14:06,997 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 01:14:06,998 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2021-02-22 01:14:06,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 01:14:07,000 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 01:14:07,001 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 01:14:07,013 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2021-02-22 01:14:07,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 01:14:07,019 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 01:14:07,020 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-22 01:14:07,021 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 01:14:07,021 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-22 01:14:07,028 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-02-22 01:14:07,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 01:14:07,031 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 01:14:07,031 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 01:14:07,032 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2021-02-22 01:14:07,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 01:14:07,034 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 01:14:07,035 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 01:14:07,035 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 153 [2021-02-22 01:14:07,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 01:14:07,037 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 01:14:07,041 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 01:14:07,080 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 01:14:07,080 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [353970062] [2021-02-22 01:14:07,081 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-22 01:14:07,081 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-02-22 01:14:07,081 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [367843582] [2021-02-22 01:14:07,082 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-02-22 01:14:07,082 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-02-22 01:14:07,083 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-02-22 01:14:07,083 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2021-02-22 01:14:07,083 INFO L87 Difference]: Start difference. First operand 443 states and 487 transitions. Second operand 6 states. [2021-02-22 01:14:07,899 WARN L202 SmtUtils]: Spent 415.00 ms on a formula simplification that was a NOOP. DAG size: 204 [2021-02-22 01:14:09,927 WARN L202 SmtUtils]: Spent 331.00 ms on a formula simplification that was a NOOP. DAG size: 205 [2021-02-22 01:14:10,580 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-22 01:14:10,580 INFO L93 Difference]: Finished difference Result 1081 states and 1258 transitions. [2021-02-22 01:14:10,581 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-02-22 01:14:10,581 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 165 [2021-02-22 01:14:10,582 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-22 01:14:10,589 INFO L225 Difference]: With dead ends: 1081 [2021-02-22 01:14:10,589 INFO L226 Difference]: Without dead ends: 753 [2021-02-22 01:14:10,591 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=34, Invalid=76, Unknown=0, NotChecked=0, Total=110 [2021-02-22 01:14:10,592 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 753 states. [2021-02-22 01:14:10,876 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 753 to 637. [2021-02-22 01:14:10,877 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 637 states. [2021-02-22 01:14:10,881 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 637 states to 637 states and 701 transitions. [2021-02-22 01:14:10,881 INFO L78 Accepts]: Start accepts. Automaton has 637 states and 701 transitions. Word has length 165 [2021-02-22 01:14:10,882 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-22 01:14:10,882 INFO L480 AbstractCegarLoop]: Abstraction has 637 states and 701 transitions. [2021-02-22 01:14:10,882 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2021-02-22 01:14:10,882 INFO L276 IsEmpty]: Start isEmpty. Operand 637 states and 701 transitions. [2021-02-22 01:14:10,884 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 167 [2021-02-22 01:14:10,884 INFO L414 BasicCegarLoop]: Found error trace [2021-02-22 01:14:10,885 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] [2021-02-22 01:14:10,885 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-02-22 01:14:10,885 INFO L428 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-22 01:14:10,886 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-22 01:14:10,886 INFO L82 PathProgramCache]: Analyzing trace with hash 756069138, now seen corresponding path program 1 times [2021-02-22 01:14:10,887 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-22 01:14:10,890 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [734771342] [2021-02-22 01:14:10,891 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-22 01:14:10,896 INFO L218 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2021-02-22 01:14:10,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 01:14:10,980 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 01:14:10,981 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-22 01:14:10,984 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 01:14:10,985 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-22 01:14:10,985 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 01:14:10,986 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-22 01:14:10,990 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 01:14:10,991 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-22 01:14:10,996 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 01:14:10,997 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-22 01:14:11,005 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 01:14:11,006 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-22 01:14:11,008 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 01:14:11,012 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-22 01:14:11,013 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 01:14:11,013 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-22 01:14:11,014 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 01:14:11,014 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-22 01:14:11,022 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 01:14:11,024 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-22 01:14:11,032 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 01:14:11,033 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 01:14:11,394 WARN L202 SmtUtils]: Spent 333.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2021-02-22 01:14:11,395 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-22 01:14:11,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 01:14:11,451 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 01:14:11,452 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 01:14:11,452 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 01:14:11,453 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-02-22 01:14:11,458 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2021-02-22 01:14:11,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 01:14:11,461 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 01:14:11,462 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 01:14:11,462 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-02-22 01:14:11,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 01:14:11,465 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 01:14:11,466 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 01:14:11,466 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2021-02-22 01:14:11,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 01:14:11,476 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 01:14:11,477 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 01:14:11,478 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 01:14:11,481 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-22 01:14:11,502 WARN L141 QuantifierPusher]: treesize reduction 22, result has 33.3 percent of original size [2021-02-22 01:14:11,503 WARN L147 QuantifierPusher]: treesize reduction 22, result has 33.3 percent of original size 11 [2021-02-22 01:14:11,523 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2021-02-22 01:14:11,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 01:14:11,526 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 01:14:11,530 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 01:14:11,550 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2021-02-22 01:14:11,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 01:14:11,553 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 01:14:11,557 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 01:14:11,557 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 144 [2021-02-22 01:14:11,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 01:14:11,563 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 01:14:11,563 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 01:14:11,564 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 01:14:11,564 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-22 01:14:11,583 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 01:14:11,584 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-22 01:14:11,601 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 154 [2021-02-22 01:14:11,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 01:14:11,610 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 01:14:11,610 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 01:14:11,652 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 01:14:11,652 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [734771342] [2021-02-22 01:14:11,652 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-22 01:14:11,652 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2021-02-22 01:14:11,653 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [547903621] [2021-02-22 01:14:11,653 INFO L460 AbstractCegarLoop]: Interpolant automaton has 14 states [2021-02-22 01:14:11,653 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-02-22 01:14:11,655 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2021-02-22 01:14:11,655 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=155, Unknown=0, NotChecked=0, Total=182 [2021-02-22 01:14:11,655 INFO L87 Difference]: Start difference. First operand 637 states and 701 transitions. Second operand 14 states. [2021-02-22 01:14:12,348 WARN L202 SmtUtils]: Spent 363.00 ms on a formula simplification that was a NOOP. DAG size: 204 [2021-02-22 01:14:12,864 WARN L202 SmtUtils]: Spent 362.00 ms on a formula simplification that was a NOOP. DAG size: 207 [2021-02-22 01:14:13,258 WARN L202 SmtUtils]: Spent 362.00 ms on a formula simplification that was a NOOP. DAG size: 209 [2021-02-22 01:14:13,684 WARN L202 SmtUtils]: Spent 370.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2021-02-22 01:14:14,101 WARN L202 SmtUtils]: Spent 373.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2021-02-22 01:14:14,500 WARN L202 SmtUtils]: Spent 364.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2021-02-22 01:14:15,360 WARN L202 SmtUtils]: Spent 326.00 ms on a formula simplification that was a NOOP. DAG size: 205 [2021-02-22 01:14:16,436 WARN L202 SmtUtils]: Spent 386.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2021-02-22 01:14:16,866 WARN L202 SmtUtils]: Spent 361.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2021-02-22 01:14:17,343 WARN L202 SmtUtils]: Spent 366.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2021-02-22 01:14:17,798 WARN L202 SmtUtils]: Spent 363.00 ms on a formula simplification that was a NOOP. DAG size: 207 [2021-02-22 01:14:18,226 WARN L202 SmtUtils]: Spent 386.00 ms on a formula simplification that was a NOOP. DAG size: 211 [2021-02-22 01:14:18,633 WARN L202 SmtUtils]: Spent 370.00 ms on a formula simplification that was a NOOP. DAG size: 209 [2021-02-22 01:14:19,034 WARN L202 SmtUtils]: Spent 361.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2021-02-22 01:14:19,487 WARN L202 SmtUtils]: Spent 361.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2021-02-22 01:14:19,987 WARN L202 SmtUtils]: Spent 379.00 ms on a formula simplification that was a NOOP. DAG size: 211 [2021-02-22 01:14:20,410 WARN L202 SmtUtils]: Spent 358.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2021-02-22 01:14:22,106 WARN L202 SmtUtils]: Spent 310.00 ms on a formula simplification that was a NOOP. DAG size: 204 [2021-02-22 01:14:22,522 WARN L202 SmtUtils]: Spent 354.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2021-02-22 01:14:23,029 WARN L202 SmtUtils]: Spent 354.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2021-02-22 01:14:24,937 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-22 01:14:24,937 INFO L93 Difference]: Finished difference Result 2107 states and 2504 transitions. [2021-02-22 01:14:24,938 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2021-02-22 01:14:24,938 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 166 [2021-02-22 01:14:24,939 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-22 01:14:24,950 INFO L225 Difference]: With dead ends: 2107 [2021-02-22 01:14:24,950 INFO L226 Difference]: Without dead ends: 1585 [2021-02-22 01:14:24,953 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 56 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 231 ImplicationChecksByTransitivity, 8.3s TimeCoverageRelationStatistics Valid=252, Invalid=1008, Unknown=0, NotChecked=0, Total=1260 [2021-02-22 01:14:24,956 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1585 states. [2021-02-22 01:14:25,726 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1585 to 1466. [2021-02-22 01:14:25,726 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1466 states. [2021-02-22 01:14:25,735 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1466 states to 1466 states and 1648 transitions. [2021-02-22 01:14:25,736 INFO L78 Accepts]: Start accepts. Automaton has 1466 states and 1648 transitions. Word has length 166 [2021-02-22 01:14:25,736 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-22 01:14:25,737 INFO L480 AbstractCegarLoop]: Abstraction has 1466 states and 1648 transitions. [2021-02-22 01:14:25,737 INFO L481 AbstractCegarLoop]: Interpolant automaton has 14 states. [2021-02-22 01:14:25,737 INFO L276 IsEmpty]: Start isEmpty. Operand 1466 states and 1648 transitions. [2021-02-22 01:14:25,742 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 211 [2021-02-22 01:14:25,742 INFO L414 BasicCegarLoop]: Found error trace [2021-02-22 01:14:25,743 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-02-22 01:14:25,743 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-02-22 01:14:25,743 INFO L428 AbstractCegarLoop]: === Iteration 6 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-22 01:14:25,744 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-22 01:14:25,744 INFO L82 PathProgramCache]: Analyzing trace with hash 1962504124, now seen corresponding path program 1 times [2021-02-22 01:14:25,744 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-22 01:14:25,744 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2060430988] [2021-02-22 01:14:25,744 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-22 01:14:25,818 WARN L141 QuantifierPusher]: treesize reduction 5, result has 94.6 percent of original size [2021-02-22 01:14:25,847 WARN L147 QuantifierPusher]: treesize reduction 5, result has 94.6 percent of original size 87 [2021-02-22 01:14:25,857 WARN L141 QuantifierPusher]: treesize reduction 5, result has 94.6 percent of original size [2021-02-22 01:14:25,863 WARN L147 QuantifierPusher]: treesize reduction 5, result has 94.6 percent of original size 87 [2021-02-22 01:14:25,921 WARN L141 QuantifierPusher]: treesize reduction 41, result has 16.3 percent of original size [2021-02-22 01:14:25,932 WARN L147 QuantifierPusher]: treesize reduction 41, result has 16.3 percent of original size 8 [2021-02-22 01:14:25,937 WARN L141 QuantifierPusher]: treesize reduction 14, result has 78.5 percent of original size [2021-02-22 01:14:25,940 WARN L147 QuantifierPusher]: treesize reduction 14, result has 78.5 percent of original size 51 [2021-02-22 01:14:25,945 WARN L141 QuantifierPusher]: treesize reduction 3, result has 96.7 percent of original size [2021-02-22 01:14:25,951 WARN L147 QuantifierPusher]: treesize reduction 3, result has 96.7 percent of original size 89 [2021-02-22 01:14:25,956 WARN L141 QuantifierPusher]: treesize reduction 3, result has 96.7 percent of original size [2021-02-22 01:14:25,962 WARN L147 QuantifierPusher]: treesize reduction 3, result has 96.7 percent of original size 89 [2021-02-22 01:14:26,014 WARN L141 QuantifierPusher]: treesize reduction 41, result has 16.3 percent of original size [2021-02-22 01:14:26,016 WARN L147 QuantifierPusher]: treesize reduction 41, result has 16.3 percent of original size 8 [2021-02-22 01:14:26,019 WARN L141 QuantifierPusher]: treesize reduction 14, result has 78.5 percent of original size [2021-02-22 01:14:26,022 WARN L147 QuantifierPusher]: treesize reduction 14, result has 78.5 percent of original size 51 [2021-02-22 01:14:26,026 WARN L141 QuantifierPusher]: treesize reduction 3, result has 96.7 percent of original size [2021-02-22 01:14:26,054 WARN L147 QuantifierPusher]: treesize reduction 3, result has 96.7 percent of original size 89 [2021-02-22 01:14:26,059 WARN L141 QuantifierPusher]: treesize reduction 3, result has 96.7 percent of original size [2021-02-22 01:14:26,064 WARN L147 QuantifierPusher]: treesize reduction 3, result has 96.7 percent of original size 89 [2021-02-22 01:14:26,125 WARN L141 QuantifierPusher]: treesize reduction 41, result has 16.3 percent of original size [2021-02-22 01:14:26,128 WARN L147 QuantifierPusher]: treesize reduction 41, result has 16.3 percent of original size 8 [2021-02-22 01:14:26,141 WARN L141 QuantifierPusher]: treesize reduction 14, result has 78.5 percent of original size [2021-02-22 01:14:26,144 WARN L147 QuantifierPusher]: treesize reduction 14, result has 78.5 percent of original size 51 [2021-02-22 01:14:26,148 WARN L141 QuantifierPusher]: treesize reduction 3, result has 96.7 percent of original size [2021-02-22 01:14:26,154 WARN L147 QuantifierPusher]: treesize reduction 3, result has 96.7 percent of original size 89 [2021-02-22 01:14:26,158 WARN L141 QuantifierPusher]: treesize reduction 3, result has 96.7 percent of original size [2021-02-22 01:14:26,164 WARN L147 QuantifierPusher]: treesize reduction 3, result has 96.7 percent of original size 89 [2021-02-22 01:14:26,220 WARN L141 QuantifierPusher]: treesize reduction 41, result has 16.3 percent of original size [2021-02-22 01:14:26,221 WARN L147 QuantifierPusher]: treesize reduction 41, result has 16.3 percent of original size 8 [2021-02-22 01:14:26,224 WARN L141 QuantifierPusher]: treesize reduction 14, result has 78.5 percent of original size [2021-02-22 01:14:26,226 WARN L147 QuantifierPusher]: treesize reduction 14, result has 78.5 percent of original size 51 [2021-02-22 01:14:26,230 WARN L141 QuantifierPusher]: treesize reduction 5, result has 94.6 percent of original size [2021-02-22 01:14:26,235 WARN L147 QuantifierPusher]: treesize reduction 5, result has 94.6 percent of original size 87 [2021-02-22 01:14:26,239 WARN L141 QuantifierPusher]: treesize reduction 5, result has 94.6 percent of original size [2021-02-22 01:14:26,243 WARN L147 QuantifierPusher]: treesize reduction 5, result has 94.6 percent of original size 87 [2021-02-22 01:14:26,299 WARN L141 QuantifierPusher]: treesize reduction 41, result has 16.3 percent of original size [2021-02-22 01:14:26,300 WARN L147 QuantifierPusher]: treesize reduction 41, result has 16.3 percent of original size 8 [2021-02-22 01:14:26,303 WARN L141 QuantifierPusher]: treesize reduction 14, result has 78.5 percent of original size [2021-02-22 01:14:26,305 WARN L147 QuantifierPusher]: treesize reduction 14, result has 78.5 percent of original size 51 [2021-02-22 01:14:26,308 WARN L141 QuantifierPusher]: treesize reduction 5, result has 94.6 percent of original size [2021-02-22 01:14:26,313 WARN L147 QuantifierPusher]: treesize reduction 5, result has 94.6 percent of original size 87 [2021-02-22 01:14:26,316 WARN L141 QuantifierPusher]: treesize reduction 5, result has 94.6 percent of original size [2021-02-22 01:14:26,321 WARN L147 QuantifierPusher]: treesize reduction 5, result has 94.6 percent of original size 87 [2021-02-22 01:14:26,372 WARN L141 QuantifierPusher]: treesize reduction 41, result has 16.3 percent of original size [2021-02-22 01:14:26,374 WARN L147 QuantifierPusher]: treesize reduction 41, result has 16.3 percent of original size 8 [2021-02-22 01:14:26,376 WARN L141 QuantifierPusher]: treesize reduction 14, result has 78.5 percent of original size [2021-02-22 01:14:26,378 WARN L147 QuantifierPusher]: treesize reduction 14, result has 78.5 percent of original size 51 [2021-02-22 01:14:26,382 WARN L141 QuantifierPusher]: treesize reduction 5, result has 94.6 percent of original size [2021-02-22 01:14:26,386 WARN L147 QuantifierPusher]: treesize reduction 5, result has 94.6 percent of original size 87 [2021-02-22 01:14:26,390 WARN L141 QuantifierPusher]: treesize reduction 5, result has 94.6 percent of original size [2021-02-22 01:14:26,395 WARN L147 QuantifierPusher]: treesize reduction 5, result has 94.6 percent of original size 87 [2021-02-22 01:14:26,445 WARN L141 QuantifierPusher]: treesize reduction 6, result has 87.8 percent of original size [2021-02-22 01:14:26,450 INFO L723 QuantifierPusher]: Distributing 10 disjuncts over 3 conjuncts [2021-02-22 01:14:26,455 INFO L730 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 01:14:26,456 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-02-22 01:14:26,459 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 01:14:26,464 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 115 [2021-02-22 01:14:26,468 WARN L147 QuantifierPusher]: treesize reduction 6, result has 87.8 percent of original size 43 [2021-02-22 01:14:26,475 WARN L141 QuantifierPusher]: treesize reduction 14, result has 89.8 percent of original size [2021-02-22 01:14:26,480 WARN L147 QuantifierPusher]: treesize reduction 14, result has 89.8 percent of original size 123 [2021-02-22 01:14:26,484 WARN L141 QuantifierPusher]: treesize reduction 3, result has 96.7 percent of original size [2021-02-22 01:14:26,488 WARN L147 QuantifierPusher]: treesize reduction 3, result has 96.7 percent of original size 89 [2021-02-22 01:14:26,492 WARN L141 QuantifierPusher]: treesize reduction 3, result has 96.7 percent of original size [2021-02-22 01:14:26,496 WARN L147 QuantifierPusher]: treesize reduction 3, result has 96.7 percent of original size 89 [2021-02-22 01:14:26,549 WARN L141 QuantifierPusher]: treesize reduction 41, result has 16.3 percent of original size [2021-02-22 01:14:26,550 WARN L147 QuantifierPusher]: treesize reduction 41, result has 16.3 percent of original size 8 [2021-02-22 01:14:26,552 WARN L141 QuantifierPusher]: treesize reduction 14, result has 78.5 percent of original size [2021-02-22 01:14:26,555 WARN L147 QuantifierPusher]: treesize reduction 14, result has 78.5 percent of original size 51 [2021-02-22 01:14:26,555 INFO L206 tedInterpolationCore]: Starting analysis with loop acceleration approximation UNDERAPPROXIMATION [2021-02-22 01:14:26,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 01:14:26,639 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 01:14:26,639 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 01:14:26,640 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 01:14:26,640 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-22 01:14:26,643 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 01:14:26,644 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-22 01:14:26,648 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 01:14:26,648 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-22 01:14:26,654 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 01:14:26,654 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 01:14:26,957 WARN L202 SmtUtils]: Spent 284.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2021-02-22 01:14:26,959 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-22 01:14:26,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 01:14:26,988 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 01:14:26,988 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 01:14:26,993 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2021-02-22 01:14:26,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 01:14:26,995 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 01:14:26,996 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 01:14:26,996 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-02-22 01:14:26,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 01:14:26,998 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 01:14:26,998 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 01:14:26,999 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2021-02-22 01:14:26,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 01:14:27,001 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 01:14:27,001 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 01:14:27,002 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2021-02-22 01:14:27,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 01:14:27,004 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 01:14:27,004 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 01:14:27,014 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2021-02-22 01:14:27,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 01:14:27,016 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 01:14:27,017 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 01:14:27,017 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 155 [2021-02-22 01:14:27,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 01:14:27,020 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 01:14:27,020 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 01:14:27,020 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 165 [2021-02-22 01:14:27,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 01:14:27,024 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 01:14:27,025 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 01:14:27,025 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 01:14:27,025 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-22 01:14:27,036 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 01:14:27,036 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-22 01:14:27,086 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 01:14:27,089 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 01:14:27,091 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-02-22 01:14:27,091 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 01:14:27,092 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-22 01:14:27,092 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 46 [2021-02-22 01:14:27,094 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 01:14:27,095 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-02-22 01:14:27,095 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 01:14:27,096 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-22 01:14:27,097 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 46 [2021-02-22 01:14:27,098 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 01:14:27,099 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-02-22 01:14:27,099 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 01:14:27,100 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-22 01:14:27,100 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 46 [2021-02-22 01:14:27,102 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 01:14:27,103 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-02-22 01:14:27,103 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 01:14:27,104 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-22 01:14:27,104 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 46 [2021-02-22 01:14:27,105 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 01:14:27,106 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-02-22 01:14:27,107 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 01:14:27,108 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-22 01:14:27,108 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 46 [2021-02-22 01:14:27,109 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 01:14:27,110 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-02-22 01:14:27,111 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 01:14:27,111 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-22 01:14:27,112 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 46 [2021-02-22 01:14:27,113 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 01:14:27,114 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 01:14:27,114 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 01:14:27,115 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-22 01:14:27,127 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 01:14:27,128 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-02-22 01:14:27,146 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 01:14:27,147 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-02-22 01:14:27,169 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 01:14:27,170 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-02-22 01:14:27,192 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 01:14:27,192 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-02-22 01:14:27,220 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 01:14:27,222 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-02-22 01:14:27,222 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 01:14:27,223 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-02-22 01:14:27,224 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-02-22 01:14:27,224 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 01:14:27,224 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-22 01:14:27,225 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-02-22 01:14:27,245 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 01:14:27,245 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-02-22 01:14:27,246 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 01:14:27,247 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-02-22 01:14:27,276 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 01:14:27,282 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 25 [2021-02-22 01:14:27,311 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 01:14:27,312 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-02-22 01:14:27,313 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 01:14:27,313 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-02-22 01:14:27,314 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 01:14:27,315 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-22 01:14:27,315 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-02-22 01:14:27,316 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 01:14:27,317 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-02-22 01:14:27,317 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-02-22 01:14:27,356 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 01:14:27,357 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-02-22 01:14:27,387 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 01:14:27,387 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-02-22 01:14:27,417 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 01:14:27,418 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-02-22 01:14:27,445 WARN L141 QuantifierPusher]: treesize reduction 8, result has 46.7 percent of original size [2021-02-22 01:14:27,445 WARN L147 QuantifierPusher]: treesize reduction 8, result has 46.7 percent of original size 7 [2021-02-22 01:14:27,470 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 01:14:27,471 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-02-22 01:14:27,501 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 01:14:27,502 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-02-22 01:14:27,535 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 01:14:27,536 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-02-22 01:14:27,568 WARN L141 QuantifierPusher]: treesize reduction 8, result has 55.6 percent of original size [2021-02-22 01:14:27,569 WARN L147 QuantifierPusher]: treesize reduction 8, result has 55.6 percent of original size 10 [2021-02-22 01:14:27,599 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 01:14:27,600 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-02-22 01:14:27,637 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 01:14:27,638 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-02-22 01:14:27,676 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 01:14:27,678 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 22 [2021-02-22 01:14:27,715 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 01:14:27,716 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 22 [2021-02-22 01:14:27,764 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 01:14:27,765 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-02-22 01:14:27,768 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 01:14:27,769 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-02-22 01:14:27,770 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 35 [2021-02-22 01:14:27,818 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 01:14:27,819 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 22 [2021-02-22 01:14:27,820 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 01:14:27,820 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 25 [2021-02-22 01:14:27,872 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 01:14:27,872 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 28 [2021-02-22 01:14:27,930 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 01:14:27,931 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 28 [2021-02-22 01:14:27,932 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 01:14:27,934 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-02-22 01:14:27,934 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 01:14:27,935 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-02-22 01:14:27,936 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 35 [2021-02-22 01:14:27,996 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 01:14:27,997 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-02-22 01:14:28,071 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 01:14:28,072 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-02-22 01:14:28,073 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 01:14:28,074 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-02-22 01:14:28,075 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 01:14:28,076 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-02-22 01:14:28,076 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 01:14:28,077 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-02-22 01:14:28,077 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 01:14:28,078 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-02-22 01:14:28,079 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 01:14:28,079 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-02-22 01:14:28,080 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 01:14:28,081 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-02-22 01:14:28,082 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 01:14:28,084 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-02-22 01:14:28,085 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 01:14:28,085 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-02-22 01:14:28,086 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 01:14:28,086 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-02-22 01:14:28,087 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 01:14:28,087 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-02-22 01:14:28,124 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 01:14:28,125 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-02-22 01:14:28,170 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 01:14:28,171 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-02-22 01:14:28,172 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 01:14:28,174 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 20 [2021-02-22 01:14:28,217 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 01:14:28,218 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-02-22 01:14:28,283 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 01:14:28,284 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-02-22 01:14:28,342 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 01:14:28,348 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 22 [2021-02-22 01:14:28,404 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 01:14:28,405 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 22 [2021-02-22 01:14:28,467 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 01:14:28,468 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 22 [2021-02-22 01:14:28,469 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 01:14:28,469 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-02-22 01:14:28,525 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 01:14:28,527 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-02-22 01:14:28,528 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 01:14:28,531 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 26 [2021-02-22 01:14:28,532 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 01:14:28,532 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 01:14:28,533 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2060430988] [2021-02-22 01:14:28,533 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-22 01:14:28,533 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [40] imperfect sequences [] total 40 [2021-02-22 01:14:28,533 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [931325359] [2021-02-22 01:14:28,533 INFO L460 AbstractCegarLoop]: Interpolant automaton has 40 states [2021-02-22 01:14:28,534 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-02-22 01:14:28,534 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 40 interpolants. [2021-02-22 01:14:28,535 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=199, Invalid=1523, Unknown=0, NotChecked=0, Total=1722 [2021-02-22 01:14:28,535 INFO L87 Difference]: Start difference. First operand 1466 states and 1648 transitions. Second operand 40 states. [2021-02-22 01:14:29,248 WARN L202 SmtUtils]: Spent 326.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2021-02-22 01:14:29,994 WARN L202 SmtUtils]: Spent 376.00 ms on a formula simplification that was a NOOP. DAG size: 209 [2021-02-22 01:14:30,460 WARN L202 SmtUtils]: Spent 395.00 ms on a formula simplification that was a NOOP. DAG size: 215 [2021-02-22 01:14:30,898 WARN L202 SmtUtils]: Spent 391.00 ms on a formula simplification that was a NOOP. DAG size: 217 [2021-02-22 01:14:31,352 WARN L202 SmtUtils]: Spent 399.00 ms on a formula simplification that was a NOOP. DAG size: 215 [2021-02-22 01:14:31,759 WARN L202 SmtUtils]: Spent 357.00 ms on a formula simplification that was a NOOP. DAG size: 217 [2021-02-22 01:14:32,219 WARN L202 SmtUtils]: Spent 383.00 ms on a formula simplification that was a NOOP. DAG size: 219 [2021-02-22 01:14:32,667 WARN L202 SmtUtils]: Spent 397.00 ms on a formula simplification that was a NOOP. DAG size: 217 [2021-02-22 01:14:33,133 WARN L202 SmtUtils]: Spent 413.00 ms on a formula simplification that was a NOOP. DAG size: 221 [2021-02-22 01:14:33,608 WARN L202 SmtUtils]: Spent 379.00 ms on a formula simplification that was a NOOP. DAG size: 219 [2021-02-22 01:14:34,030 WARN L202 SmtUtils]: Spent 356.00 ms on a formula simplification that was a NOOP. DAG size: 217 [2021-02-22 01:14:34,548 WARN L202 SmtUtils]: Spent 422.00 ms on a formula simplification that was a NOOP. DAG size: 221 [2021-02-22 01:14:35,073 WARN L202 SmtUtils]: Spent 422.00 ms on a formula simplification that was a NOOP. DAG size: 223 [2021-02-22 01:14:35,604 WARN L202 SmtUtils]: Spent 402.00 ms on a formula simplification that was a NOOP. DAG size: 221 [2021-02-22 01:14:36,144 WARN L202 SmtUtils]: Spent 384.00 ms on a formula simplification that was a NOOP. DAG size: 219 [2021-02-22 01:14:36,706 WARN L202 SmtUtils]: Spent 416.00 ms on a formula simplification that was a NOOP. DAG size: 223 [2021-02-22 01:14:37,314 WARN L202 SmtUtils]: Spent 421.00 ms on a formula simplification that was a NOOP. DAG size: 225 [2021-02-22 01:14:37,849 WARN L202 SmtUtils]: Spent 404.00 ms on a formula simplification that was a NOOP. DAG size: 223 [2021-02-22 01:14:38,383 WARN L202 SmtUtils]: Spent 412.00 ms on a formula simplification that was a NOOP. DAG size: 225 [2021-02-22 01:14:38,930 WARN L202 SmtUtils]: Spent 375.00 ms on a formula simplification that was a NOOP. DAG size: 218 [2021-02-22 01:14:39,846 WARN L202 SmtUtils]: Spent 349.00 ms on a formula simplification that was a NOOP. DAG size: 207 [2021-02-22 01:14:40,675 WARN L202 SmtUtils]: Spent 379.00 ms on a formula simplification that was a NOOP. DAG size: 209 [2021-02-22 01:14:41,251 WARN L202 SmtUtils]: Spent 421.00 ms on a formula simplification that was a NOOP. DAG size: 211 [2021-02-22 01:14:41,755 WARN L202 SmtUtils]: Spent 372.00 ms on a formula simplification that was a NOOP. DAG size: 209 [2021-02-22 01:14:42,197 WARN L202 SmtUtils]: Spent 369.00 ms on a formula simplification that was a NOOP. DAG size: 212 [2021-02-22 01:14:42,637 WARN L202 SmtUtils]: Spent 379.00 ms on a formula simplification that was a NOOP. DAG size: 214 [2021-02-22 01:14:43,067 WARN L202 SmtUtils]: Spent 367.00 ms on a formula simplification that was a NOOP. DAG size: 212 [2021-02-22 01:14:43,548 WARN L202 SmtUtils]: Spent 407.00 ms on a formula simplification that was a NOOP. DAG size: 214 [2021-02-22 01:14:44,049 WARN L202 SmtUtils]: Spent 384.00 ms on a formula simplification that was a NOOP. DAG size: 212 [2021-02-22 01:14:45,210 WARN L202 SmtUtils]: Spent 408.00 ms on a formula simplification that was a NOOP. DAG size: 222 [2021-02-22 01:14:46,343 WARN L202 SmtUtils]: Spent 890.00 ms on a formula simplification. DAG size of input: 224 DAG size of output: 222 [2021-02-22 01:14:49,582 WARN L202 SmtUtils]: Spent 484.00 ms on a formula simplification that was a NOOP. DAG size: 223 [2021-02-22 01:14:51,120 WARN L202 SmtUtils]: Spent 407.00 ms on a formula simplification that was a NOOP. DAG size: 214 [2021-02-22 01:14:51,783 WARN L202 SmtUtils]: Spent 444.00 ms on a formula simplification that was a NOOP. DAG size: 219 [2021-02-22 01:14:52,255 WARN L202 SmtUtils]: Spent 413.00 ms on a formula simplification that was a NOOP. DAG size: 216 [2021-02-22 01:14:53,012 WARN L202 SmtUtils]: Spent 445.00 ms on a formula simplification that was a NOOP. DAG size: 225 [2021-02-22 01:14:53,876 WARN L202 SmtUtils]: Spent 773.00 ms on a formula simplification. DAG size of input: 216 DAG size of output: 214 [2021-02-22 01:14:54,406 WARN L202 SmtUtils]: Spent 425.00 ms on a formula simplification that was a NOOP. DAG size: 223 [2021-02-22 01:14:55,404 WARN L202 SmtUtils]: Spent 774.00 ms on a formula simplification. DAG size of input: 219 DAG size of output: 216 [2021-02-22 01:14:55,920 WARN L202 SmtUtils]: Spent 409.00 ms on a formula simplification that was a NOOP. DAG size: 223 [2021-02-22 01:14:56,515 WARN L202 SmtUtils]: Spent 473.00 ms on a formula simplification that was a NOOP. DAG size: 225 [2021-02-22 01:14:56,894 WARN L202 SmtUtils]: Spent 346.00 ms on a formula simplification that was a NOOP. DAG size: 204 [2021-02-22 01:14:58,104 WARN L202 SmtUtils]: Spent 346.00 ms on a formula simplification that was a NOOP. DAG size: 209 [2021-02-22 01:14:58,602 WARN L202 SmtUtils]: Spent 364.00 ms on a formula simplification that was a NOOP. DAG size: 211 [2021-02-22 01:14:59,224 WARN L202 SmtUtils]: Spent 401.00 ms on a formula simplification that was a NOOP. DAG size: 214 [2021-02-22 01:14:59,867 WARN L202 SmtUtils]: Spent 382.00 ms on a formula simplification that was a NOOP. DAG size: 216 [2021-02-22 01:15:00,278 WARN L202 SmtUtils]: Spent 351.00 ms on a formula simplification that was a NOOP. DAG size: 214 [2021-02-22 01:15:00,989 WARN L202 SmtUtils]: Spent 367.00 ms on a formula simplification that was a NOOP. DAG size: 216 [2021-02-22 01:15:01,524 WARN L202 SmtUtils]: Spent 400.00 ms on a formula simplification that was a NOOP. DAG size: 216 [2021-02-22 01:15:03,041 WARN L202 SmtUtils]: Spent 439.00 ms on a formula simplification that was a NOOP. DAG size: 218 [2021-02-22 01:15:04,215 WARN L202 SmtUtils]: Spent 873.00 ms on a formula simplification. DAG size of input: 220 DAG size of output: 218 [2021-02-22 01:15:05,324 WARN L202 SmtUtils]: Spent 432.00 ms on a formula simplification that was a NOOP. DAG size: 217 [2021-02-22 01:15:07,077 WARN L202 SmtUtils]: Spent 347.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2021-02-22 01:15:07,507 WARN L202 SmtUtils]: Spent 367.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2021-02-22 01:15:08,084 WARN L202 SmtUtils]: Spent 348.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2021-02-22 01:15:08,485 WARN L202 SmtUtils]: Spent 352.00 ms on a formula simplification that was a NOOP. DAG size: 210 [2021-02-22 01:15:08,868 WARN L202 SmtUtils]: Spent 339.00 ms on a formula simplification that was a NOOP. DAG size: 207 [2021-02-22 01:15:09,332 WARN L202 SmtUtils]: Spent 384.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2021-02-22 01:15:09,781 WARN L202 SmtUtils]: Spent 368.00 ms on a formula simplification that was a NOOP. DAG size: 210 [2021-02-22 01:15:10,152 WARN L202 SmtUtils]: Spent 323.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2021-02-22 01:15:14,545 WARN L202 SmtUtils]: Spent 457.00 ms on a formula simplification that was a NOOP. DAG size: 227 [2021-02-22 01:15:15,208 WARN L202 SmtUtils]: Spent 416.00 ms on a formula simplification that was a NOOP. DAG size: 225 [2021-02-22 01:15:15,887 WARN L202 SmtUtils]: Spent 418.00 ms on a formula simplification that was a NOOP. DAG size: 225 [2021-02-22 01:15:16,581 WARN L202 SmtUtils]: Spent 420.00 ms on a formula simplification that was a NOOP. DAG size: 227 [2021-02-22 01:15:20,717 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-22 01:15:20,718 INFO L93 Difference]: Finished difference Result 2509 states and 3105 transitions. [2021-02-22 01:15:20,719 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 314 states. [2021-02-22 01:15:20,719 INFO L78 Accepts]: Start accepts. Automaton has 40 states. Word has length 210 [2021-02-22 01:15:20,719 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-22 01:15:20,729 INFO L225 Difference]: With dead ends: 2509 [2021-02-22 01:15:20,730 INFO L226 Difference]: Without dead ends: 1066 [2021-02-22 01:15:20,763 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 443 GetRequests, 94 SyntacticMatches, 1 SemanticMatches, 348 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 53047 ImplicationChecksByTransitivity, 44.0s TimeCoverageRelationStatistics Valid=9963, Invalid=112187, Unknown=0, NotChecked=0, Total=122150 [2021-02-22 01:15:20,765 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1066 states. [2021-02-22 01:15:21,080 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1066 to 694. [2021-02-22 01:15:21,081 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 694 states. [2021-02-22 01:15:21,084 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 694 states to 694 states and 760 transitions. [2021-02-22 01:15:21,085 INFO L78 Accepts]: Start accepts. Automaton has 694 states and 760 transitions. Word has length 210 [2021-02-22 01:15:21,085 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-22 01:15:21,085 INFO L480 AbstractCegarLoop]: Abstraction has 694 states and 760 transitions. [2021-02-22 01:15:21,086 INFO L481 AbstractCegarLoop]: Interpolant automaton has 40 states. [2021-02-22 01:15:21,086 INFO L276 IsEmpty]: Start isEmpty. Operand 694 states and 760 transitions. [2021-02-22 01:15:21,091 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 265 [2021-02-22 01:15:21,091 INFO L414 BasicCegarLoop]: Found error trace [2021-02-22 01:15:21,092 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 01:15:21,092 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-02-22 01:15:21,092 INFO L428 AbstractCegarLoop]: === Iteration 7 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-22 01:15:21,093 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-22 01:15:21,093 INFO L82 PathProgramCache]: Analyzing trace with hash 751909407, now seen corresponding path program 1 times [2021-02-22 01:15:21,093 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-22 01:15:21,093 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [770706575] [2021-02-22 01:15:21,093 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-22 01:15:21,129 FATAL L? ?]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction has thrown an exception: java.lang.NullPointerException at de.uni_freiburg.informatik.ultimate.lib.acceleratedinterpolation.loopaccelerator.AcceleratorWernerOverapprox.accelerateLoop(AcceleratorWernerOverapprox.java:55) at de.uni_freiburg.informatik.ultimate.lib.acceleratedinterpolation.AcceleratedInterpolationCore.acceleratedInterpolationCoreIsCorrect(AcceleratedInterpolationCore.java:183) at de.uni_freiburg.informatik.ultimate.lib.acceleratedinterpolation.AcceleratedInterpolation.(AcceleratedInterpolation.java:162) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModulePreferences.construct(IpTcStrategyModulePreferences.java:145) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getOrConstruct(IpTcStrategyModuleBase.java:100) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.isCorrect(IpTcStrategyModuleBase.java:56) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.checkFeasibility(AutomatonFreeRefinementEngine.java:241) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.executeStrategy(AutomatonFreeRefinementEngine.java:165) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.(AutomatonFreeRefinementEngine.java:84) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.(TraceAbstractionRefinementEngine.java:74) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.BasicCegarLoop.isCounterexampleFeasible(BasicCegarLoop.java:511) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterateInternal(AbstractCegarLoop.java:437) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterate(AbstractCegarLoop.java:372) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.CegarLoopUtils.getCegarLoopResult(CegarLoopUtils.java:68) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.CegarLoopUtils.getCegarLoopResult(CegarLoopUtils.java:62) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.iterateAllErrorsAtOnce(TraceAbstractionStarter.java:317) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:171) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:131) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:124) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:168) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:320) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) [2021-02-22 01:15:21,137 INFO L168 Benchmark]: Toolchain (without parser) took 89913.86 ms. Allocated memory was 166.7 MB in the beginning and 761.3 MB in the end (delta: 594.5 MB). Free memory was 141.7 MB in the beginning and 290.4 MB in the end (delta: -148.7 MB). Peak memory consumption was 446.9 MB. Max. memory is 8.0 GB. [2021-02-22 01:15:21,138 INFO L168 Benchmark]: CDTParser took 0.18 ms. Allocated memory is still 166.7 MB. Free memory is still 140.2 MB. There was no memory consumed. Max. memory is 8.0 GB. [2021-02-22 01:15:21,138 INFO L168 Benchmark]: CACSL2BoogieTranslator took 620.64 ms. Allocated memory is still 166.7 MB. Free memory was 140.6 MB in the beginning and 119.9 MB in the end (delta: 20.7 MB). Peak memory consumption was 21.0 MB. Max. memory is 8.0 GB. [2021-02-22 01:15:21,138 INFO L168 Benchmark]: Boogie Preprocessor took 100.93 ms. Allocated memory is still 166.7 MB. Free memory was 119.9 MB in the beginning and 116.1 MB in the end (delta: 3.8 MB). Peak memory consumption was 3.1 MB. Max. memory is 8.0 GB. [2021-02-22 01:15:21,138 INFO L168 Benchmark]: RCFGBuilder took 1860.45 ms. Allocated memory was 166.7 MB in the beginning and 223.3 MB in the end (delta: 56.6 MB). Free memory was 116.0 MB in the beginning and 152.7 MB in the end (delta: -36.7 MB). Peak memory consumption was 27.3 MB. Max. memory is 8.0 GB. [2021-02-22 01:15:21,139 INFO L168 Benchmark]: TraceAbstraction took 87311.53 ms. Allocated memory was 223.3 MB in the beginning and 761.3 MB in the end (delta: 537.9 MB). Free memory was 152.2 MB in the beginning and 290.4 MB in the end (delta: -138.2 MB). Peak memory consumption was 399.7 MB. Max. memory is 8.0 GB. [2021-02-22 01:15:21,140 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.18 ms. Allocated memory is still 166.7 MB. Free memory is still 140.2 MB. There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 620.64 ms. Allocated memory is still 166.7 MB. Free memory was 140.6 MB in the beginning and 119.9 MB in the end (delta: 20.7 MB). Peak memory consumption was 21.0 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 100.93 ms. Allocated memory is still 166.7 MB. Free memory was 119.9 MB in the beginning and 116.1 MB in the end (delta: 3.8 MB). Peak memory consumption was 3.1 MB. Max. memory is 8.0 GB. * RCFGBuilder took 1860.45 ms. Allocated memory was 166.7 MB in the beginning and 223.3 MB in the end (delta: 56.6 MB). Free memory was 116.0 MB in the beginning and 152.7 MB in the end (delta: -36.7 MB). Peak memory consumption was 27.3 MB. Max. memory is 8.0 GB. * TraceAbstraction took 87311.53 ms. Allocated memory was 223.3 MB in the beginning and 761.3 MB in the end (delta: 537.9 MB). Free memory was 152.2 MB in the beginning and 290.4 MB in the end (delta: -138.2 MB). Peak memory consumption was 399.7 MB. Max. memory is 8.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - ExceptionOrErrorResult: NullPointerException: null de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: NullPointerException: null: de.uni_freiburg.informatik.ultimate.lib.acceleratedinterpolation.loopaccelerator.AcceleratorWernerOverapprox.accelerateLoop(AcceleratorWernerOverapprox.java:55) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request...