/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-36cd7be [2021-02-24 03:38:02,184 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-02-24 03:38:02,192 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-02-24 03:38:02,238 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-02-24 03:38:02,239 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-02-24 03:38:02,243 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-02-24 03:38:02,247 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-02-24 03:38:02,254 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-02-24 03:38:02,257 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-02-24 03:38:02,265 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-02-24 03:38:02,266 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-02-24 03:38:02,268 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-02-24 03:38:02,268 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-02-24 03:38:02,271 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-02-24 03:38:02,272 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-02-24 03:38:02,273 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-02-24 03:38:02,274 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-02-24 03:38:02,275 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-02-24 03:38:02,277 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-02-24 03:38:02,279 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-02-24 03:38:02,281 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-02-24 03:38:02,282 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-02-24 03:38:02,283 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-02-24 03:38:02,284 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-02-24 03:38:02,287 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-02-24 03:38:02,288 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-02-24 03:38:02,288 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-02-24 03:38:02,289 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-02-24 03:38:02,290 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-02-24 03:38:02,291 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-02-24 03:38:02,291 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-02-24 03:38:02,292 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-02-24 03:38:02,293 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-02-24 03:38:02,294 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-02-24 03:38:02,295 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-02-24 03:38:02,295 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-02-24 03:38:02,296 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-02-24 03:38:02,296 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-02-24 03:38:02,297 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-02-24 03:38:02,298 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-02-24 03:38:02,298 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-02-24 03:38:02,299 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/acceleratedInterpolation/acceleratedInterpolationWernerOverapprox_32.epf [2021-02-24 03:38:02,311 INFO L113 SettingsManager]: Loading preferences was successful [2021-02-24 03:38:02,312 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-02-24 03:38:02,313 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-02-24 03:38:02,313 INFO L138 SettingsManager]: * sizeof long=4 [2021-02-24 03:38:02,314 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-02-24 03:38:02,314 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-02-24 03:38:02,314 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-02-24 03:38:02,314 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-02-24 03:38:02,314 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-02-24 03:38:02,315 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-02-24 03:38:02,315 INFO L138 SettingsManager]: * sizeof long double=12 [2021-02-24 03:38:02,315 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-02-24 03:38:02,315 INFO L138 SettingsManager]: * Use constant arrays=true [2021-02-24 03:38:02,315 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-02-24 03:38:02,316 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-02-24 03:38:02,316 INFO L138 SettingsManager]: * Size of a code block=SingleStatement [2021-02-24 03:38:02,316 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-02-24 03:38:02,316 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-02-24 03:38:02,317 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-02-24 03:38:02,317 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-02-24 03:38:02,317 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=AcceleratedInterpolation [2021-02-24 03:38:02,317 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-02-24 03:38:02,317 INFO L138 SettingsManager]: * Loop acceleration method that is used by accelerated interpolation=WERNER_OVERAPPROX [2021-02-24 03:38:02,318 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-02-24 03:38:02,819 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-02-24 03:38:02,859 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-02-24 03:38:02,862 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-02-24 03:38:02,864 INFO L271 PluginConnector]: Initializing CDTParser... [2021-02-24 03:38:02,865 INFO L275 PluginConnector]: CDTParser initialized [2021-02-24 03:38:02,866 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec4_product43.cil.c [2021-02-24 03:38:02,937 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4b4ad0064/15d574a44a164271b1602be6727492dc/FLAGf75c6d371 [2021-02-24 03:38:03,529 INFO L306 CDTParser]: Found 1 translation units. [2021-02-24 03:38:03,530 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/minepump_spec4_product43.cil.c [2021-02-24 03:38:03,545 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4b4ad0064/15d574a44a164271b1602be6727492dc/FLAGf75c6d371 [2021-02-24 03:38:03,827 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4b4ad0064/15d574a44a164271b1602be6727492dc [2021-02-24 03:38:03,831 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-02-24 03:38:03,844 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2021-02-24 03:38:03,849 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-02-24 03:38:03,849 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-02-24 03:38:03,853 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-02-24 03:38:03,854 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.02 03:38:03" (1/1) ... [2021-02-24 03:38:03,856 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@12d86c22 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.02 03:38:03, skipping insertion in model container [2021-02-24 03:38:03,856 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.02 03:38:03" (1/1) ... [2021-02-24 03:38:03,865 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-02-24 03:38:03,934 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-02-24 03:38:04,160 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] [2021-02-24 03:38:04,324 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-02-24 03:38:04,338 INFO L203 MainTranslator]: Completed pre-run [2021-02-24 03:38:04,379 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] [2021-02-24 03:38:04,429 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-02-24 03:38:04,467 INFO L208 MainTranslator]: Completed translation [2021-02-24 03:38:04,468 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.02 03:38:04 WrapperNode [2021-02-24 03:38:04,468 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-02-24 03:38:04,469 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-02-24 03:38:04,469 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-02-24 03:38:04,469 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-02-24 03:38:04,483 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.02 03:38:04" (1/1) ... [2021-02-24 03:38:04,483 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.02 03:38:04" (1/1) ... [2021-02-24 03:38:04,505 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.02 03:38:04" (1/1) ... [2021-02-24 03:38:04,505 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.02 03:38:04" (1/1) ... [2021-02-24 03:38:04,540 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.02 03:38:04" (1/1) ... [2021-02-24 03:38:04,553 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.02 03:38:04" (1/1) ... [2021-02-24 03:38:04,558 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.02 03:38:04" (1/1) ... [2021-02-24 03:38:04,566 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-02-24 03:38:04,567 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-02-24 03:38:04,567 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-02-24 03:38:04,567 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-02-24 03:38:04,568 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.02 03:38:04" (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 [2021-02-24 03:38:04,666 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2021-02-24 03:38:04,666 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-02-24 03:38:04,666 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2021-02-24 03:38:04,667 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2021-02-24 03:38:04,667 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2021-02-24 03:38:04,667 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2021-02-24 03:38:04,667 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2021-02-24 03:38:04,667 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2021-02-24 03:38:04,667 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump__wrappee__highWaterSensor [2021-02-24 03:38:04,668 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2021-02-24 03:38:04,668 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2021-02-24 03:38:04,668 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2021-02-24 03:38:04,668 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2021-02-24 03:38:04,668 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2021-02-24 03:38:04,669 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterLevel [2021-02-24 03:38:04,669 INFO L138 BoogieDeclarations]: Found implementation of procedure stopSystem [2021-02-24 03:38:04,669 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2021-02-24 03:38:04,669 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2021-02-24 03:38:04,669 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2021-02-24 03:38:04,669 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2021-02-24 03:38:04,670 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2021-02-24 03:38:04,670 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2021-02-24 03:38:04,670 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2021-02-24 03:38:04,670 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2021-02-24 03:38:04,670 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2021-02-24 03:38:04,670 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2021-02-24 03:38:04,671 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2021-02-24 03:38:04,671 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2021-02-24 03:38:04,671 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterSensorDry [2021-02-24 03:38:04,671 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2021-02-24 03:38:04,671 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2021-02-24 03:38:04,671 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2021-02-24 03:38:04,672 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2021-02-24 03:38:04,672 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2021-02-24 03:38:04,672 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2021-02-24 03:38:04,672 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2021-02-24 03:38:04,672 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2021-02-24 03:38:04,672 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2021-02-24 03:38:04,673 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2021-02-24 03:38:04,673 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification4_spec__1 [2021-02-24 03:38:04,673 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2021-02-24 03:38:04,673 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2021-02-24 03:38:04,673 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2021-02-24 03:38:04,673 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-02-24 03:38:04,674 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2021-02-24 03:38:04,674 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2021-02-24 03:38:04,674 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2021-02-24 03:38:04,674 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2021-02-24 03:38:04,674 INFO L130 BoogieDeclarations]: Found specification of procedure stopSystem [2021-02-24 03:38:04,674 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2021-02-24 03:38:04,674 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2021-02-24 03:38:04,675 INFO L130 BoogieDeclarations]: Found specification of procedure test [2021-02-24 03:38:04,675 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2021-02-24 03:38:04,675 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2021-02-24 03:38:04,675 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2021-02-24 03:38:04,675 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterSensorDry [2021-02-24 03:38:04,675 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2021-02-24 03:38:04,675 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2021-02-24 03:38:04,676 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2021-02-24 03:38:04,676 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2021-02-24 03:38:04,676 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification4_spec__1 [2021-02-24 03:38:04,676 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2021-02-24 03:38:04,676 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2021-02-24 03:38:04,676 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterLevel [2021-02-24 03:38:04,677 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump__wrappee__highWaterSensor [2021-02-24 03:38:04,677 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2021-02-24 03:38:04,677 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2021-02-24 03:38:04,677 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2021-02-24 03:38:04,677 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2021-02-24 03:38:04,677 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2021-02-24 03:38:04,677 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2021-02-24 03:38:04,678 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2021-02-24 03:38:04,678 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2021-02-24 03:38:04,678 INFO L130 BoogieDeclarations]: Found specification of procedure main [2021-02-24 03:38:04,678 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2021-02-24 03:38:04,678 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2021-02-24 03:38:04,678 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2021-02-24 03:38:04,679 INFO L130 BoogieDeclarations]: Found specification of procedure free [2021-02-24 03:38:04,679 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2021-02-24 03:38:04,679 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-02-24 03:38:04,679 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-02-24 03:38:04,679 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-02-24 03:38:04,679 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-02-24 03:38:04,679 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2021-02-24 03:38:04,680 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-02-24 03:38:04,680 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2021-02-24 03:38:04,680 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2021-02-24 03:38:04,680 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-02-24 03:38:04,680 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2021-02-24 03:38:04,680 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2021-02-24 03:38:04,681 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2021-02-24 03:38:04,681 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2021-02-24 03:38:04,681 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-02-24 03:38:04,681 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-02-24 03:38:05,766 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-02-24 03:38:05,766 INFO L299 CfgBuilder]: Removed 5 assume(true) statements. [2021-02-24 03:38:05,771 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.02 03:38:05 BoogieIcfgContainer [2021-02-24 03:38:05,771 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-02-24 03:38:05,773 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-02-24 03:38:05,773 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-02-24 03:38:05,777 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-02-24 03:38:05,777 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.02 03:38:03" (1/3) ... [2021-02-24 03:38:05,778 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6a8324cb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.02 03:38:05, skipping insertion in model container [2021-02-24 03:38:05,779 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.02 03:38:04" (2/3) ... [2021-02-24 03:38:05,779 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6a8324cb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.02 03:38:05, skipping insertion in model container [2021-02-24 03:38:05,779 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.02 03:38:05" (3/3) ... [2021-02-24 03:38:05,781 INFO L111 eAbstractionObserver]: Analyzing ICFG minepump_spec4_product43.cil.c [2021-02-24 03:38:05,788 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:AcceleratedInterpolation Determinization: PREDICATE_ABSTRACTION [2021-02-24 03:38:05,794 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2021-02-24 03:38:05,814 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-02-24 03:38:05,838 INFO L376 AbstractCegarLoop]: Interprodecural is true [2021-02-24 03:38:05,838 INFO L377 AbstractCegarLoop]: Hoare is true [2021-02-24 03:38:05,838 INFO L378 AbstractCegarLoop]: Compute interpolants for AcceleratedInterpolation [2021-02-24 03:38:05,839 INFO L379 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-02-24 03:38:05,839 INFO L380 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-02-24 03:38:05,839 INFO L381 AbstractCegarLoop]: Difference is false [2021-02-24 03:38:05,839 INFO L382 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-02-24 03:38:05,839 INFO L386 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-02-24 03:38:05,862 INFO L276 IsEmpty]: Start isEmpty. Operand 315 states. [2021-02-24 03:38:05,881 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 148 [2021-02-24 03:38:05,882 INFO L414 BasicCegarLoop]: Found error trace [2021-02-24 03:38:05,883 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] [2021-02-24 03:38:05,883 INFO L428 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-24 03:38:05,889 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-24 03:38:05,889 INFO L82 PathProgramCache]: Analyzing trace with hash -1329130714, now seen corresponding path program 1 times [2021-02-24 03:38:05,901 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-24 03:38:05,902 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1806546331] [2021-02-24 03:38:05,902 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-24 03:38:05,982 INFO L218 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2021-02-24 03:38:06,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:38:06,340 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:38:06,341 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:38:06,342 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:38:06,343 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:38:06,662 WARN L202 SmtUtils]: Spent 242.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2021-02-24 03:38:06,665 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-24 03:38:06,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:38:06,762 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:38:06,762 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:38:06,780 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2021-02-24 03:38:06,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:38:06,788 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:38:06,789 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:38:06,792 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-02-24 03:38:06,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:38:06,797 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:38:06,799 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:38:06,800 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2021-02-24 03:38:06,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:38:06,807 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:38:06,808 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:38:06,809 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2021-02-24 03:38:06,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:38:06,815 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:38:06,816 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:38:06,816 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2021-02-24 03:38:06,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:38:06,819 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:38:06,820 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:38:06,820 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2021-02-24 03:38:06,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:38:06,823 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:38:06,824 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:38:06,877 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-24 03:38:06,879 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1806546331] [2021-02-24 03:38:06,881 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-24 03:38:06,881 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-02-24 03:38:06,882 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1687274473] [2021-02-24 03:38:06,887 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-02-24 03:38:06,887 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-02-24 03:38:06,899 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-02-24 03:38:06,900 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-02-24 03:38:06,902 INFO L87 Difference]: Start difference. First operand 315 states. Second operand 3 states. [2021-02-24 03:38:08,554 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-24 03:38:08,554 INFO L93 Difference]: Finished difference Result 491 states and 578 transitions. [2021-02-24 03:38:08,555 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-02-24 03:38:08,557 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 147 [2021-02-24 03:38:08,559 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-24 03:38:08,589 INFO L225 Difference]: With dead ends: 491 [2021-02-24 03:38:08,589 INFO L226 Difference]: Without dead ends: 306 [2021-02-24 03:38:08,596 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 [2021-02-24 03:38:08,618 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 306 states. [2021-02-24 03:38:08,813 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 306 to 263. [2021-02-24 03:38:08,814 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 263 states. [2021-02-24 03:38:08,820 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 263 states to 263 states and 283 transitions. [2021-02-24 03:38:08,822 INFO L78 Accepts]: Start accepts. Automaton has 263 states and 283 transitions. Word has length 147 [2021-02-24 03:38:08,825 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-24 03:38:08,825 INFO L480 AbstractCegarLoop]: Abstraction has 263 states and 283 transitions. [2021-02-24 03:38:08,825 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2021-02-24 03:38:08,825 INFO L276 IsEmpty]: Start isEmpty. Operand 263 states and 283 transitions. [2021-02-24 03:38:08,839 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 149 [2021-02-24 03:38:08,840 INFO L414 BasicCegarLoop]: Found error trace [2021-02-24 03:38:08,840 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] [2021-02-24 03:38:08,840 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-02-24 03:38:08,841 INFO L428 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-24 03:38:08,841 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-24 03:38:08,842 INFO L82 PathProgramCache]: Analyzing trace with hash -305967401, now seen corresponding path program 1 times [2021-02-24 03:38:08,842 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-24 03:38:08,843 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2142733606] [2021-02-24 03:38:08,843 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-24 03:38:08,848 INFO L218 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2021-02-24 03:38:08,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:38:09,024 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:38:09,026 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:38:09,026 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:38:09,028 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 03:38:09,032 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:38:09,033 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:38:09,351 WARN L202 SmtUtils]: Spent 302.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2021-02-24 03:38:09,352 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-24 03:38:09,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:38:09,394 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:38:09,395 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:38:09,400 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2021-02-24 03:38:09,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:38:09,402 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:38:09,403 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:38:09,403 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-02-24 03:38:09,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:38:09,405 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:38:09,406 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:38:09,406 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2021-02-24 03:38:09,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:38:09,408 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:38:09,409 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:38:09,409 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2021-02-24 03:38:09,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:38:09,411 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:38:09,411 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:38:09,412 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2021-02-24 03:38:09,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:38:09,414 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:38:09,414 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:38:09,415 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2021-02-24 03:38:09,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:38:09,417 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:38:09,418 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:38:09,464 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-24 03:38:09,465 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2142733606] [2021-02-24 03:38:09,465 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-24 03:38:09,465 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-02-24 03:38:09,466 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1113068884] [2021-02-24 03:38:09,467 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-02-24 03:38:09,467 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-02-24 03:38:09,467 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-02-24 03:38:09,468 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-02-24 03:38:09,468 INFO L87 Difference]: Start difference. First operand 263 states and 283 transitions. Second operand 4 states. [2021-02-24 03:38:10,223 WARN L202 SmtUtils]: Spent 305.00 ms on a formula simplification that was a NOOP. DAG size: 205 [2021-02-24 03:38:11,283 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-24 03:38:11,284 INFO L93 Difference]: Finished difference Result 398 states and 442 transitions. [2021-02-24 03:38:11,284 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-02-24 03:38:11,284 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 148 [2021-02-24 03:38:11,286 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-24 03:38:11,289 INFO L225 Difference]: With dead ends: 398 [2021-02-24 03:38:11,289 INFO L226 Difference]: Without dead ends: 289 [2021-02-24 03:38:11,291 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 [2021-02-24 03:38:11,292 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 289 states. [2021-02-24 03:38:11,382 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 289 to 253. [2021-02-24 03:38:11,382 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 253 states. [2021-02-24 03:38:11,384 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 253 states to 253 states and 270 transitions. [2021-02-24 03:38:11,384 INFO L78 Accepts]: Start accepts. Automaton has 253 states and 270 transitions. Word has length 148 [2021-02-24 03:38:11,385 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-24 03:38:11,385 INFO L480 AbstractCegarLoop]: Abstraction has 253 states and 270 transitions. [2021-02-24 03:38:11,385 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2021-02-24 03:38:11,385 INFO L276 IsEmpty]: Start isEmpty. Operand 253 states and 270 transitions. [2021-02-24 03:38:11,387 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 158 [2021-02-24 03:38:11,387 INFO L414 BasicCegarLoop]: Found error trace [2021-02-24 03:38:11,388 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] [2021-02-24 03:38:11,388 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-02-24 03:38:11,388 INFO L428 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-24 03:38:11,388 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-24 03:38:11,389 INFO L82 PathProgramCache]: Analyzing trace with hash 153687360, now seen corresponding path program 1 times [2021-02-24 03:38:11,389 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-24 03:38:11,389 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1334200084] [2021-02-24 03:38:11,389 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-24 03:38:11,392 INFO L218 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2021-02-24 03:38:11,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:38:11,478 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:38:11,479 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 03:38:11,482 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:38:11,483 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 03:38:11,484 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:38:11,484 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 03:38:11,488 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:38:11,489 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 03:38:11,494 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:38:11,494 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-24 03:38:11,500 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:38:11,501 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-24 03:38:11,501 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:38:11,502 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-24 03:38:11,502 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:38:11,503 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:38:11,834 WARN L202 SmtUtils]: Spent 311.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2021-02-24 03:38:11,835 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-24 03:38:11,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:38:11,889 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:38:11,889 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:38:11,890 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:38:11,890 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-02-24 03:38:11,898 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2021-02-24 03:38:11,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:38:11,901 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:38:11,901 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:38:11,901 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-02-24 03:38:11,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:38:11,909 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:38:11,910 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:38:11,910 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2021-02-24 03:38:11,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:38:11,919 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:38:11,920 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:38:11,927 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:38:11,928 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-24 03:38:11,951 WARN L141 QuantifierPusher]: treesize reduction 22, result has 33.3 percent of original size [2021-02-24 03:38:11,953 WARN L147 QuantifierPusher]: treesize reduction 22, result has 33.3 percent of original size 11 [2021-02-24 03:38:11,968 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2021-02-24 03:38:11,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:38:11,977 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:38:11,978 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:38:11,978 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2021-02-24 03:38:11,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:38:11,982 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:38:11,983 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:38:11,983 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 145 [2021-02-24 03:38:11,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:38:11,988 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:38:11,989 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:38:12,027 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-24 03:38:12,028 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1334200084] [2021-02-24 03:38:12,029 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-24 03:38:12,029 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-02-24 03:38:12,029 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1814956567] [2021-02-24 03:38:12,030 INFO L460 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-02-24 03:38:12,030 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-02-24 03:38:12,031 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-02-24 03:38:12,035 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2021-02-24 03:38:12,035 INFO L87 Difference]: Start difference. First operand 253 states and 270 transitions. Second operand 9 states. [2021-02-24 03:38:12,775 WARN L202 SmtUtils]: Spent 406.00 ms on a formula simplification that was a NOOP. DAG size: 204 [2021-02-24 03:38:13,197 WARN L202 SmtUtils]: Spent 301.00 ms on a formula simplification that was a NOOP. DAG size: 207 [2021-02-24 03:38:13,568 WARN L202 SmtUtils]: Spent 346.00 ms on a formula simplification that was a NOOP. DAG size: 209 [2021-02-24 03:38:13,948 WARN L202 SmtUtils]: Spent 339.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2021-02-24 03:38:14,326 WARN L202 SmtUtils]: Spent 346.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2021-02-24 03:38:14,699 WARN L202 SmtUtils]: Spent 346.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2021-02-24 03:38:15,797 WARN L202 SmtUtils]: Spent 315.00 ms on a formula simplification that was a NOOP. DAG size: 205 [2021-02-24 03:38:17,941 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-24 03:38:17,941 INFO L93 Difference]: Finished difference Result 660 states and 749 transitions. [2021-02-24 03:38:17,941 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-02-24 03:38:17,941 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 157 [2021-02-24 03:38:17,942 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-24 03:38:17,946 INFO L225 Difference]: With dead ends: 660 [2021-02-24 03:38:17,946 INFO L226 Difference]: Without dead ends: 522 [2021-02-24 03:38:17,948 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 19 SyntacticMatches, 1 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 23 ImplicationChecksByTransitivity, 2.8s TimeCoverageRelationStatistics Valid=71, Invalid=169, Unknown=0, NotChecked=0, Total=240 [2021-02-24 03:38:17,950 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 522 states. [2021-02-24 03:38:18,157 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 522 to 443. [2021-02-24 03:38:18,157 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 443 states. [2021-02-24 03:38:18,160 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 443 states to 443 states and 487 transitions. [2021-02-24 03:38:18,160 INFO L78 Accepts]: Start accepts. Automaton has 443 states and 487 transitions. Word has length 157 [2021-02-24 03:38:18,161 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-24 03:38:18,161 INFO L480 AbstractCegarLoop]: Abstraction has 443 states and 487 transitions. [2021-02-24 03:38:18,161 INFO L481 AbstractCegarLoop]: Interpolant automaton has 9 states. [2021-02-24 03:38:18,161 INFO L276 IsEmpty]: Start isEmpty. Operand 443 states and 487 transitions. [2021-02-24 03:38:18,164 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 166 [2021-02-24 03:38:18,164 INFO L414 BasicCegarLoop]: Found error trace [2021-02-24 03:38:18,164 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] [2021-02-24 03:38:18,164 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-02-24 03:38:18,165 INFO L428 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-24 03:38:18,165 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-24 03:38:18,165 INFO L82 PathProgramCache]: Analyzing trace with hash 281694197, now seen corresponding path program 1 times [2021-02-24 03:38:18,165 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-24 03:38:18,166 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [765995101] [2021-02-24 03:38:18,166 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-24 03:38:18,169 INFO L218 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2021-02-24 03:38:18,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:38:18,281 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:38:18,282 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 03:38:18,285 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:38:18,285 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 03:38:18,286 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:38:18,286 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 03:38:18,288 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:38:18,288 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 03:38:18,289 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:38:18,289 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 03:38:18,292 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:38:18,292 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:38:18,557 WARN L202 SmtUtils]: Spent 255.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2021-02-24 03:38:18,558 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-24 03:38:18,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:38:18,616 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:38:18,616 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:38:18,620 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:38:18,621 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 03:38:18,627 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2021-02-24 03:38:18,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:38:18,630 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:38:18,630 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:38:18,630 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-02-24 03:38:18,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:38:18,633 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:38:18,634 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:38:18,634 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2021-02-24 03:38:18,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:38:18,640 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:38:18,642 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:38:18,642 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2021-02-24 03:38:18,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:38:18,644 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:38:18,645 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:38:18,651 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2021-02-24 03:38:18,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:38:18,655 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:38:18,656 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 03:38:18,656 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:38:18,657 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-24 03:38:18,664 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-02-24 03:38:18,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:38:18,673 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:38:18,674 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:38:18,674 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2021-02-24 03:38:18,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:38:18,678 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:38:18,679 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:38:18,679 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 153 [2021-02-24 03:38:18,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:38:18,682 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:38:18,683 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:38:18,722 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-24 03:38:18,722 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [765995101] [2021-02-24 03:38:18,722 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-24 03:38:18,723 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-02-24 03:38:18,723 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [174798423] [2021-02-24 03:38:18,724 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-02-24 03:38:18,725 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-02-24 03:38:18,725 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-02-24 03:38:18,726 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2021-02-24 03:38:18,726 INFO L87 Difference]: Start difference. First operand 443 states and 487 transitions. Second operand 6 states. [2021-02-24 03:38:19,318 WARN L202 SmtUtils]: Spent 320.00 ms on a formula simplification that was a NOOP. DAG size: 204 [2021-02-24 03:38:21,303 WARN L202 SmtUtils]: Spent 297.00 ms on a formula simplification that was a NOOP. DAG size: 205 [2021-02-24 03:38:21,923 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-24 03:38:21,924 INFO L93 Difference]: Finished difference Result 1081 states and 1258 transitions. [2021-02-24 03:38:21,924 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-02-24 03:38:21,924 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 165 [2021-02-24 03:38:21,925 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-24 03:38:21,930 INFO L225 Difference]: With dead ends: 1081 [2021-02-24 03:38:21,930 INFO L226 Difference]: Without dead ends: 753 [2021-02-24 03:38:21,933 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=34, Invalid=76, Unknown=0, NotChecked=0, Total=110 [2021-02-24 03:38:21,934 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 753 states. [2021-02-24 03:38:22,229 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 753 to 637. [2021-02-24 03:38:22,229 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 637 states. [2021-02-24 03:38:22,233 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 637 states to 637 states and 701 transitions. [2021-02-24 03:38:22,234 INFO L78 Accepts]: Start accepts. Automaton has 637 states and 701 transitions. Word has length 165 [2021-02-24 03:38:22,234 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-24 03:38:22,234 INFO L480 AbstractCegarLoop]: Abstraction has 637 states and 701 transitions. [2021-02-24 03:38:22,235 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2021-02-24 03:38:22,235 INFO L276 IsEmpty]: Start isEmpty. Operand 637 states and 701 transitions. [2021-02-24 03:38:22,237 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 167 [2021-02-24 03:38:22,237 INFO L414 BasicCegarLoop]: Found error trace [2021-02-24 03:38:22,237 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] [2021-02-24 03:38:22,237 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-02-24 03:38:22,237 INFO L428 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-24 03:38:22,238 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-24 03:38:22,238 INFO L82 PathProgramCache]: Analyzing trace with hash 756069138, now seen corresponding path program 1 times [2021-02-24 03:38:22,238 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-24 03:38:22,239 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1880850672] [2021-02-24 03:38:22,239 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-24 03:38:22,241 INFO L218 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2021-02-24 03:38:22,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:38:22,310 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:38:22,310 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 03:38:22,313 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:38:22,313 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 03:38:22,314 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:38:22,314 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 03:38:22,319 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:38:22,319 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 03:38:22,324 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:38:22,325 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-24 03:38:22,331 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:38:22,331 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-24 03:38:22,332 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:38:22,334 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-24 03:38:22,335 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:38:22,336 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-24 03:38:22,336 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:38:22,337 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-24 03:38:22,344 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:38:22,345 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-24 03:38:22,352 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:38:22,353 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:38:22,738 WARN L202 SmtUtils]: Spent 360.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2021-02-24 03:38:22,739 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-24 03:38:22,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:38:22,783 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:38:22,783 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:38:22,784 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:38:22,785 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-02-24 03:38:22,792 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2021-02-24 03:38:22,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:38:22,795 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:38:22,795 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:38:22,796 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-02-24 03:38:22,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:38:22,798 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:38:22,798 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:38:22,799 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2021-02-24 03:38:22,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:38:22,806 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:38:22,807 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:38:22,808 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:38:22,809 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-24 03:38:22,826 WARN L141 QuantifierPusher]: treesize reduction 22, result has 33.3 percent of original size [2021-02-24 03:38:22,828 WARN L147 QuantifierPusher]: treesize reduction 22, result has 33.3 percent of original size 11 [2021-02-24 03:38:22,848 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2021-02-24 03:38:22,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:38:22,851 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:38:22,851 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:38:22,869 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2021-02-24 03:38:22,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:38:22,872 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:38:22,873 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:38:22,873 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 144 [2021-02-24 03:38:22,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:38:22,876 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:38:22,877 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:38:22,877 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:38:22,877 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 03:38:22,892 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:38:22,893 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 03:38:22,908 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 154 [2021-02-24 03:38:22,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:38:22,910 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:38:22,911 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:38:22,953 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-24 03:38:22,954 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1880850672] [2021-02-24 03:38:22,954 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-24 03:38:22,954 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2021-02-24 03:38:22,954 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1670885230] [2021-02-24 03:38:22,954 INFO L460 AbstractCegarLoop]: Interpolant automaton has 14 states [2021-02-24 03:38:22,955 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-02-24 03:38:22,955 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2021-02-24 03:38:22,955 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=155, Unknown=0, NotChecked=0, Total=182 [2021-02-24 03:38:22,956 INFO L87 Difference]: Start difference. First operand 637 states and 701 transitions. Second operand 14 states. [2021-02-24 03:38:23,568 WARN L202 SmtUtils]: Spent 316.00 ms on a formula simplification that was a NOOP. DAG size: 204 [2021-02-24 03:38:24,013 WARN L202 SmtUtils]: Spent 308.00 ms on a formula simplification that was a NOOP. DAG size: 207 [2021-02-24 03:38:24,396 WARN L202 SmtUtils]: Spent 352.00 ms on a formula simplification that was a NOOP. DAG size: 209 [2021-02-24 03:38:24,792 WARN L202 SmtUtils]: Spent 345.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2021-02-24 03:38:25,213 WARN L202 SmtUtils]: Spent 380.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2021-02-24 03:38:25,574 WARN L202 SmtUtils]: Spent 328.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2021-02-24 03:38:26,323 WARN L202 SmtUtils]: Spent 282.00 ms on a formula simplification that was a NOOP. DAG size: 205 [2021-02-24 03:38:27,183 WARN L202 SmtUtils]: Spent 325.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2021-02-24 03:38:27,576 WARN L202 SmtUtils]: Spent 338.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2021-02-24 03:38:28,019 WARN L202 SmtUtils]: Spent 335.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2021-02-24 03:38:28,444 WARN L202 SmtUtils]: Spent 330.00 ms on a formula simplification that was a NOOP. DAG size: 207 [2021-02-24 03:38:28,825 WARN L202 SmtUtils]: Spent 342.00 ms on a formula simplification that was a NOOP. DAG size: 211 [2021-02-24 03:38:29,197 WARN L202 SmtUtils]: Spent 337.00 ms on a formula simplification that was a NOOP. DAG size: 209 [2021-02-24 03:38:29,541 WARN L202 SmtUtils]: Spent 306.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2021-02-24 03:38:29,965 WARN L202 SmtUtils]: Spent 345.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2021-02-24 03:38:30,422 WARN L202 SmtUtils]: Spent 342.00 ms on a formula simplification that was a NOOP. DAG size: 211 [2021-02-24 03:38:30,812 WARN L202 SmtUtils]: Spent 332.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2021-02-24 03:38:32,418 WARN L202 SmtUtils]: Spent 324.00 ms on a formula simplification that was a NOOP. DAG size: 204 [2021-02-24 03:38:32,822 WARN L202 SmtUtils]: Spent 344.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2021-02-24 03:38:33,306 WARN L202 SmtUtils]: Spent 322.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2021-02-24 03:38:35,125 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-24 03:38:35,125 INFO L93 Difference]: Finished difference Result 2107 states and 2504 transitions. [2021-02-24 03:38:35,126 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2021-02-24 03:38:35,126 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 166 [2021-02-24 03:38:35,126 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-24 03:38:35,137 INFO L225 Difference]: With dead ends: 2107 [2021-02-24 03:38:35,137 INFO L226 Difference]: Without dead ends: 1585 [2021-02-24 03:38:35,141 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 56 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 231 ImplicationChecksByTransitivity, 7.6s TimeCoverageRelationStatistics Valid=252, Invalid=1008, Unknown=0, NotChecked=0, Total=1260 [2021-02-24 03:38:35,143 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1585 states. [2021-02-24 03:38:35,806 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1585 to 1466. [2021-02-24 03:38:35,807 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1466 states. [2021-02-24 03:38:35,815 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1466 states to 1466 states and 1648 transitions. [2021-02-24 03:38:35,816 INFO L78 Accepts]: Start accepts. Automaton has 1466 states and 1648 transitions. Word has length 166 [2021-02-24 03:38:35,817 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-24 03:38:35,817 INFO L480 AbstractCegarLoop]: Abstraction has 1466 states and 1648 transitions. [2021-02-24 03:38:35,817 INFO L481 AbstractCegarLoop]: Interpolant automaton has 14 states. [2021-02-24 03:38:35,817 INFO L276 IsEmpty]: Start isEmpty. Operand 1466 states and 1648 transitions. [2021-02-24 03:38:35,822 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 211 [2021-02-24 03:38:35,822 INFO L414 BasicCegarLoop]: Found error trace [2021-02-24 03:38:35,822 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] [2021-02-24 03:38:35,823 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-02-24 03:38:35,823 INFO L428 AbstractCegarLoop]: === Iteration 6 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-24 03:38:35,823 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-24 03:38:35,824 INFO L82 PathProgramCache]: Analyzing trace with hash 1962504124, now seen corresponding path program 1 times [2021-02-24 03:38:35,824 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-24 03:38:35,824 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1710470704] [2021-02-24 03:38:35,824 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-24 03:38:35,880 WARN L141 QuantifierPusher]: treesize reduction 5, result has 94.6 percent of original size [2021-02-24 03:38:35,905 WARN L147 QuantifierPusher]: treesize reduction 5, result has 94.6 percent of original size 87 [2021-02-24 03:38:35,915 WARN L141 QuantifierPusher]: treesize reduction 5, result has 94.6 percent of original size [2021-02-24 03:38:35,921 WARN L147 QuantifierPusher]: treesize reduction 5, result has 94.6 percent of original size 87 [2021-02-24 03:38:35,975 WARN L141 QuantifierPusher]: treesize reduction 41, result has 16.3 percent of original size [2021-02-24 03:38:35,985 WARN L147 QuantifierPusher]: treesize reduction 41, result has 16.3 percent of original size 8 [2021-02-24 03:38:35,990 WARN L141 QuantifierPusher]: treesize reduction 14, result has 78.5 percent of original size [2021-02-24 03:38:35,993 WARN L147 QuantifierPusher]: treesize reduction 14, result has 78.5 percent of original size 51 [2021-02-24 03:38:35,997 WARN L141 QuantifierPusher]: treesize reduction 3, result has 96.7 percent of original size [2021-02-24 03:38:36,003 WARN L147 QuantifierPusher]: treesize reduction 3, result has 96.7 percent of original size 89 [2021-02-24 03:38:36,008 WARN L141 QuantifierPusher]: treesize reduction 3, result has 96.7 percent of original size [2021-02-24 03:38:36,014 WARN L147 QuantifierPusher]: treesize reduction 3, result has 96.7 percent of original size 89 [2021-02-24 03:38:36,065 WARN L141 QuantifierPusher]: treesize reduction 41, result has 16.3 percent of original size [2021-02-24 03:38:36,067 WARN L147 QuantifierPusher]: treesize reduction 41, result has 16.3 percent of original size 8 [2021-02-24 03:38:36,070 WARN L141 QuantifierPusher]: treesize reduction 14, result has 78.5 percent of original size [2021-02-24 03:38:36,072 WARN L147 QuantifierPusher]: treesize reduction 14, result has 78.5 percent of original size 51 [2021-02-24 03:38:36,076 WARN L141 QuantifierPusher]: treesize reduction 3, result has 96.7 percent of original size [2021-02-24 03:38:36,082 WARN L147 QuantifierPusher]: treesize reduction 3, result has 96.7 percent of original size 89 [2021-02-24 03:38:36,086 WARN L141 QuantifierPusher]: treesize reduction 3, result has 96.7 percent of original size [2021-02-24 03:38:36,091 WARN L147 QuantifierPusher]: treesize reduction 3, result has 96.7 percent of original size 89 [2021-02-24 03:38:36,142 WARN L141 QuantifierPusher]: treesize reduction 41, result has 16.3 percent of original size [2021-02-24 03:38:36,144 WARN L147 QuantifierPusher]: treesize reduction 41, result has 16.3 percent of original size 8 [2021-02-24 03:38:36,146 WARN L141 QuantifierPusher]: treesize reduction 14, result has 78.5 percent of original size [2021-02-24 03:38:36,149 WARN L147 QuantifierPusher]: treesize reduction 14, result has 78.5 percent of original size 51 [2021-02-24 03:38:36,152 WARN L141 QuantifierPusher]: treesize reduction 3, result has 96.7 percent of original size [2021-02-24 03:38:36,157 WARN L147 QuantifierPusher]: treesize reduction 3, result has 96.7 percent of original size 89 [2021-02-24 03:38:36,161 WARN L141 QuantifierPusher]: treesize reduction 3, result has 96.7 percent of original size [2021-02-24 03:38:36,167 WARN L147 QuantifierPusher]: treesize reduction 3, result has 96.7 percent of original size 89 [2021-02-24 03:38:36,217 WARN L141 QuantifierPusher]: treesize reduction 41, result has 16.3 percent of original size [2021-02-24 03:38:36,219 WARN L147 QuantifierPusher]: treesize reduction 41, result has 16.3 percent of original size 8 [2021-02-24 03:38:36,222 WARN L141 QuantifierPusher]: treesize reduction 14, result has 78.5 percent of original size [2021-02-24 03:38:36,224 WARN L147 QuantifierPusher]: treesize reduction 14, result has 78.5 percent of original size 51 [2021-02-24 03:38:36,227 WARN L141 QuantifierPusher]: treesize reduction 5, result has 94.6 percent of original size [2021-02-24 03:38:36,232 WARN L147 QuantifierPusher]: treesize reduction 5, result has 94.6 percent of original size 87 [2021-02-24 03:38:36,236 WARN L141 QuantifierPusher]: treesize reduction 5, result has 94.6 percent of original size [2021-02-24 03:38:36,241 WARN L147 QuantifierPusher]: treesize reduction 5, result has 94.6 percent of original size 87 [2021-02-24 03:38:36,292 WARN L141 QuantifierPusher]: treesize reduction 41, result has 16.3 percent of original size [2021-02-24 03:38:36,293 WARN L147 QuantifierPusher]: treesize reduction 41, result has 16.3 percent of original size 8 [2021-02-24 03:38:36,296 WARN L141 QuantifierPusher]: treesize reduction 14, result has 78.5 percent of original size [2021-02-24 03:38:36,298 WARN L147 QuantifierPusher]: treesize reduction 14, result has 78.5 percent of original size 51 [2021-02-24 03:38:36,301 WARN L141 QuantifierPusher]: treesize reduction 5, result has 94.6 percent of original size [2021-02-24 03:38:36,306 WARN L147 QuantifierPusher]: treesize reduction 5, result has 94.6 percent of original size 87 [2021-02-24 03:38:36,309 WARN L141 QuantifierPusher]: treesize reduction 5, result has 94.6 percent of original size [2021-02-24 03:38:36,313 WARN L147 QuantifierPusher]: treesize reduction 5, result has 94.6 percent of original size 87 [2021-02-24 03:38:36,363 WARN L141 QuantifierPusher]: treesize reduction 41, result has 16.3 percent of original size [2021-02-24 03:38:36,365 WARN L147 QuantifierPusher]: treesize reduction 41, result has 16.3 percent of original size 8 [2021-02-24 03:38:36,367 WARN L141 QuantifierPusher]: treesize reduction 14, result has 78.5 percent of original size [2021-02-24 03:38:36,369 WARN L147 QuantifierPusher]: treesize reduction 14, result has 78.5 percent of original size 51 [2021-02-24 03:38:36,373 WARN L141 QuantifierPusher]: treesize reduction 5, result has 94.6 percent of original size [2021-02-24 03:38:36,377 WARN L147 QuantifierPusher]: treesize reduction 5, result has 94.6 percent of original size 87 [2021-02-24 03:38:36,381 WARN L141 QuantifierPusher]: treesize reduction 5, result has 94.6 percent of original size [2021-02-24 03:38:36,385 WARN L147 QuantifierPusher]: treesize reduction 5, result has 94.6 percent of original size 87 [2021-02-24 03:38:36,435 WARN L141 QuantifierPusher]: treesize reduction 6, result has 87.8 percent of original size [2021-02-24 03:38:36,439 INFO L723 QuantifierPusher]: Distributing 10 disjuncts over 3 conjuncts [2021-02-24 03:38:36,445 INFO L730 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:38:36,445 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-02-24 03:38:36,448 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:38:36,454 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 115 [2021-02-24 03:38:36,458 WARN L147 QuantifierPusher]: treesize reduction 6, result has 87.8 percent of original size 43 [2021-02-24 03:38:36,465 WARN L141 QuantifierPusher]: treesize reduction 14, result has 89.8 percent of original size [2021-02-24 03:38:36,471 WARN L147 QuantifierPusher]: treesize reduction 14, result has 89.8 percent of original size 123 [2021-02-24 03:38:36,475 WARN L141 QuantifierPusher]: treesize reduction 3, result has 96.7 percent of original size [2021-02-24 03:38:36,479 WARN L147 QuantifierPusher]: treesize reduction 3, result has 96.7 percent of original size 89 [2021-02-24 03:38:36,484 WARN L141 QuantifierPusher]: treesize reduction 3, result has 96.7 percent of original size [2021-02-24 03:38:36,494 WARN L147 QuantifierPusher]: treesize reduction 3, result has 96.7 percent of original size 89 [2021-02-24 03:38:36,545 WARN L141 QuantifierPusher]: treesize reduction 41, result has 16.3 percent of original size [2021-02-24 03:38:36,551 WARN L147 QuantifierPusher]: treesize reduction 41, result has 16.3 percent of original size 8 [2021-02-24 03:38:36,555 WARN L141 QuantifierPusher]: treesize reduction 14, result has 78.5 percent of original size [2021-02-24 03:38:36,558 WARN L147 QuantifierPusher]: treesize reduction 14, result has 78.5 percent of original size 51 [2021-02-24 03:38:36,559 INFO L206 tedInterpolationCore]: Starting analysis with loop acceleration approximation UNDERAPPROXIMATION [2021-02-24 03:38:36,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:38:36,703 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:38:36,703 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:38:36,704 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:38:36,704 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 03:38:36,707 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:38:36,708 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 03:38:36,712 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:38:36,712 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 03:38:36,716 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:38:36,717 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:38:37,013 WARN L202 SmtUtils]: Spent 276.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2021-02-24 03:38:37,015 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-24 03:38:37,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:38:37,089 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:38:37,089 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:38:37,095 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2021-02-24 03:38:37,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:38:37,097 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:38:37,097 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:38:37,097 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-02-24 03:38:37,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:38:37,099 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:38:37,099 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:38:37,100 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2021-02-24 03:38:37,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:38:37,101 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:38:37,102 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:38:37,102 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2021-02-24 03:38:37,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:38:37,104 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:38:37,104 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:38:37,113 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2021-02-24 03:38:37,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:38:37,115 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:38:37,116 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:38:37,116 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 155 [2021-02-24 03:38:37,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:38:37,118 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:38:37,119 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:38:37,119 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 165 [2021-02-24 03:38:37,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:38:37,122 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:38:37,123 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:38:37,123 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:38:37,124 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 03:38:37,133 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:38:37,134 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 03:38:37,186 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-24 03:38:37,188 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:38:37,190 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-02-24 03:38:37,191 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:38:37,191 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-24 03:38:37,192 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 46 [2021-02-24 03:38:37,193 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:38:37,194 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-02-24 03:38:37,195 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:38:37,195 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-24 03:38:37,196 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 46 [2021-02-24 03:38:37,197 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:38:37,198 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-02-24 03:38:37,199 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:38:37,199 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-24 03:38:37,200 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 46 [2021-02-24 03:38:37,201 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:38:37,202 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-02-24 03:38:37,202 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:38:37,203 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-24 03:38:37,203 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 46 [2021-02-24 03:38:37,204 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:38:37,205 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-02-24 03:38:37,206 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:38:37,206 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-24 03:38:37,207 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 46 [2021-02-24 03:38:37,208 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:38:37,209 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-02-24 03:38:37,210 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:38:37,210 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-24 03:38:37,211 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 46 [2021-02-24 03:38:37,212 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:38:37,212 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:38:37,213 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:38:37,213 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 03:38:37,225 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:38:37,226 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-02-24 03:38:37,245 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:38:37,246 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-02-24 03:38:37,267 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:38:37,268 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-02-24 03:38:37,289 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:38:37,290 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-02-24 03:38:37,318 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:38:37,320 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-02-24 03:38:37,320 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:38:37,321 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-02-24 03:38:37,322 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-02-24 03:38:37,322 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:38:37,323 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 03:38:37,324 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-02-24 03:38:37,343 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:38:37,344 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-02-24 03:38:37,344 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:38:37,345 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-02-24 03:38:37,375 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:38:37,376 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 25 [2021-02-24 03:38:37,407 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:38:37,407 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-02-24 03:38:37,408 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:38:37,409 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-02-24 03:38:37,410 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:38:37,410 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 03:38:37,411 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-02-24 03:38:37,411 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:38:37,412 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-02-24 03:38:37,413 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-02-24 03:38:37,453 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:38:37,454 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-02-24 03:38:37,479 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:38:37,479 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-02-24 03:38:37,507 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:38:37,508 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-02-24 03:38:37,535 WARN L141 QuantifierPusher]: treesize reduction 8, result has 46.7 percent of original size [2021-02-24 03:38:37,535 WARN L147 QuantifierPusher]: treesize reduction 8, result has 46.7 percent of original size 7 [2021-02-24 03:38:37,558 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:38:37,559 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-02-24 03:38:37,588 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:38:37,589 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-02-24 03:38:37,621 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:38:37,622 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-02-24 03:38:37,653 WARN L141 QuantifierPusher]: treesize reduction 8, result has 55.6 percent of original size [2021-02-24 03:38:37,653 WARN L147 QuantifierPusher]: treesize reduction 8, result has 55.6 percent of original size 10 [2021-02-24 03:38:37,680 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:38:37,681 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-02-24 03:38:37,714 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:38:37,715 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-02-24 03:38:37,753 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:38:37,754 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 22 [2021-02-24 03:38:37,789 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:38:37,790 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 22 [2021-02-24 03:38:37,829 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:38:37,830 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-02-24 03:38:37,831 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:38:37,831 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-02-24 03:38:37,832 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 35 [2021-02-24 03:38:37,876 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:38:37,877 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 22 [2021-02-24 03:38:37,878 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:38:37,881 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 25 [2021-02-24 03:38:37,933 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:38:37,935 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 28 [2021-02-24 03:38:37,991 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:38:37,993 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 28 [2021-02-24 03:38:37,995 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:38:37,996 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-02-24 03:38:37,996 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:38:37,997 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-02-24 03:38:37,998 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 35 [2021-02-24 03:38:38,053 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:38:38,055 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-02-24 03:38:38,099 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:38:38,101 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-02-24 03:38:38,103 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:38:38,106 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-02-24 03:38:38,108 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:38:38,108 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-02-24 03:38:38,109 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:38:38,109 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-02-24 03:38:38,110 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:38:38,110 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-02-24 03:38:38,111 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:38:38,112 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-02-24 03:38:38,112 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:38:38,114 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-02-24 03:38:38,115 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:38:38,115 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-02-24 03:38:38,116 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:38:38,116 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-02-24 03:38:38,117 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:38:38,117 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-02-24 03:38:38,118 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:38:38,118 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-02-24 03:38:38,155 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:38:38,156 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-02-24 03:38:38,196 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:38:38,197 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-02-24 03:38:38,197 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:38:38,198 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 20 [2021-02-24 03:38:38,236 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:38:38,237 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-02-24 03:38:38,291 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:38:38,292 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-02-24 03:38:38,344 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:38:38,345 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 22 [2021-02-24 03:38:38,391 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:38:38,392 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 22 [2021-02-24 03:38:38,452 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:38:38,452 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 22 [2021-02-24 03:38:38,453 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:38:38,455 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-02-24 03:38:38,509 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:38:38,513 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-02-24 03:38:38,516 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:38:38,517 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 26 [2021-02-24 03:38:38,517 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:38:38,517 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:38:38,518 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1710470704] [2021-02-24 03:38:38,518 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-24 03:38:38,518 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [40] imperfect sequences [] total 40 [2021-02-24 03:38:38,518 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1954658349] [2021-02-24 03:38:38,518 INFO L460 AbstractCegarLoop]: Interpolant automaton has 40 states [2021-02-24 03:38:38,518 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-02-24 03:38:38,519 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 40 interpolants. [2021-02-24 03:38:38,520 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=199, Invalid=1523, Unknown=0, NotChecked=0, Total=1722 [2021-02-24 03:38:38,520 INFO L87 Difference]: Start difference. First operand 1466 states and 1648 transitions. Second operand 40 states. [2021-02-24 03:38:39,258 WARN L202 SmtUtils]: Spent 377.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2021-02-24 03:38:40,012 WARN L202 SmtUtils]: Spent 345.00 ms on a formula simplification that was a NOOP. DAG size: 209 [2021-02-24 03:38:40,423 WARN L202 SmtUtils]: Spent 346.00 ms on a formula simplification that was a NOOP. DAG size: 215 [2021-02-24 03:38:40,843 WARN L202 SmtUtils]: Spent 376.00 ms on a formula simplification that was a NOOP. DAG size: 217 [2021-02-24 03:38:41,282 WARN L202 SmtUtils]: Spent 391.00 ms on a formula simplification that was a NOOP. DAG size: 215 [2021-02-24 03:38:41,712 WARN L202 SmtUtils]: Spent 379.00 ms on a formula simplification that was a NOOP. DAG size: 217 [2021-02-24 03:38:42,163 WARN L202 SmtUtils]: Spent 381.00 ms on a formula simplification that was a NOOP. DAG size: 219 [2021-02-24 03:38:42,583 WARN L202 SmtUtils]: Spent 370.00 ms on a formula simplification that was a NOOP. DAG size: 217 [2021-02-24 03:38:43,026 WARN L202 SmtUtils]: Spent 391.00 ms on a formula simplification that was a NOOP. DAG size: 221 [2021-02-24 03:38:43,509 WARN L202 SmtUtils]: Spent 363.00 ms on a formula simplification that was a NOOP. DAG size: 219 [2021-02-24 03:38:43,938 WARN L202 SmtUtils]: Spent 374.00 ms on a formula simplification that was a NOOP. DAG size: 217 [2021-02-24 03:38:44,428 WARN L202 SmtUtils]: Spent 393.00 ms on a formula simplification that was a NOOP. DAG size: 221 [2021-02-24 03:38:44,938 WARN L202 SmtUtils]: Spent 401.00 ms on a formula simplification that was a NOOP. DAG size: 223 [2021-02-24 03:38:45,481 WARN L202 SmtUtils]: Spent 415.00 ms on a formula simplification that was a NOOP. DAG size: 221 [2021-02-24 03:38:46,011 WARN L202 SmtUtils]: Spent 380.00 ms on a formula simplification that was a NOOP. DAG size: 219 [2021-02-24 03:38:46,542 WARN L202 SmtUtils]: Spent 398.00 ms on a formula simplification that was a NOOP. DAG size: 223 [2021-02-24 03:38:47,118 WARN L202 SmtUtils]: Spent 391.00 ms on a formula simplification that was a NOOP. DAG size: 225 [2021-02-24 03:38:47,664 WARN L202 SmtUtils]: Spent 417.00 ms on a formula simplification that was a NOOP. DAG size: 223 [2021-02-24 03:38:48,201 WARN L202 SmtUtils]: Spent 411.00 ms on a formula simplification that was a NOOP. DAG size: 225 [2021-02-24 03:38:48,718 WARN L202 SmtUtils]: Spent 384.00 ms on a formula simplification that was a NOOP. DAG size: 218 [2021-02-24 03:38:49,649 WARN L202 SmtUtils]: Spent 365.00 ms on a formula simplification that was a NOOP. DAG size: 207 [2021-02-24 03:38:50,441 WARN L202 SmtUtils]: Spent 348.00 ms on a formula simplification that was a NOOP. DAG size: 209 [2021-02-24 03:38:50,940 WARN L202 SmtUtils]: Spent 363.00 ms on a formula simplification that was a NOOP. DAG size: 211 [2021-02-24 03:38:51,410 WARN L202 SmtUtils]: Spent 353.00 ms on a formula simplification that was a NOOP. DAG size: 209 [2021-02-24 03:38:51,867 WARN L202 SmtUtils]: Spent 384.00 ms on a formula simplification that was a NOOP. DAG size: 212 [2021-02-24 03:38:52,277 WARN L202 SmtUtils]: Spent 349.00 ms on a formula simplification that was a NOOP. DAG size: 214 [2021-02-24 03:38:52,706 WARN L202 SmtUtils]: Spent 365.00 ms on a formula simplification that was a NOOP. DAG size: 212 [2021-02-24 03:38:53,141 WARN L202 SmtUtils]: Spent 379.00 ms on a formula simplification that was a NOOP. DAG size: 214 [2021-02-24 03:38:53,642 WARN L202 SmtUtils]: Spent 386.00 ms on a formula simplification that was a NOOP. DAG size: 212 [2021-02-24 03:38:54,753 WARN L202 SmtUtils]: Spent 405.00 ms on a formula simplification that was a NOOP. DAG size: 222 [2021-02-24 03:38:55,822 WARN L202 SmtUtils]: Spent 834.00 ms on a formula simplification. DAG size of input: 224 DAG size of output: 222 [2021-02-24 03:38:58,845 WARN L202 SmtUtils]: Spent 415.00 ms on a formula simplification that was a NOOP. DAG size: 223 [2021-02-24 03:39:00,280 WARN L202 SmtUtils]: Spent 376.00 ms on a formula simplification that was a NOOP. DAG size: 214 [2021-02-24 03:39:00,891 WARN L202 SmtUtils]: Spent 388.00 ms on a formula simplification that was a NOOP. DAG size: 219 [2021-02-24 03:39:01,331 WARN L202 SmtUtils]: Spent 386.00 ms on a formula simplification that was a NOOP. DAG size: 216 [2021-02-24 03:39:02,059 WARN L202 SmtUtils]: Spent 418.00 ms on a formula simplification that was a NOOP. DAG size: 225 [2021-02-24 03:39:02,924 WARN L202 SmtUtils]: Spent 778.00 ms on a formula simplification. DAG size of input: 216 DAG size of output: 214 [2021-02-24 03:39:03,427 WARN L202 SmtUtils]: Spent 401.00 ms on a formula simplification that was a NOOP. DAG size: 223 [2021-02-24 03:39:04,407 WARN L202 SmtUtils]: Spent 747.00 ms on a formula simplification. DAG size of input: 219 DAG size of output: 216 [2021-02-24 03:39:04,942 WARN L202 SmtUtils]: Spent 431.00 ms on a formula simplification that was a NOOP. DAG size: 223 [2021-02-24 03:39:05,508 WARN L202 SmtUtils]: Spent 441.00 ms on a formula simplification that was a NOOP. DAG size: 225 [2021-02-24 03:39:05,877 WARN L202 SmtUtils]: Spent 334.00 ms on a formula simplification that was a NOOP. DAG size: 204 [2021-02-24 03:39:07,079 WARN L202 SmtUtils]: Spent 319.00 ms on a formula simplification that was a NOOP. DAG size: 209 [2021-02-24 03:39:07,535 WARN L202 SmtUtils]: Spent 330.00 ms on a formula simplification that was a NOOP. DAG size: 211 [2021-02-24 03:39:08,159 WARN L202 SmtUtils]: Spent 390.00 ms on a formula simplification that was a NOOP. DAG size: 214 [2021-02-24 03:39:08,885 WARN L202 SmtUtils]: Spent 446.00 ms on a formula simplification that was a NOOP. DAG size: 216 [2021-02-24 03:39:09,300 WARN L202 SmtUtils]: Spent 355.00 ms on a formula simplification that was a NOOP. DAG size: 214 [2021-02-24 03:39:10,096 WARN L202 SmtUtils]: Spent 410.00 ms on a formula simplification that was a NOOP. DAG size: 216 [2021-02-24 03:39:10,655 WARN L202 SmtUtils]: Spent 413.00 ms on a formula simplification that was a NOOP. DAG size: 216 [2021-02-24 03:39:12,085 WARN L202 SmtUtils]: Spent 422.00 ms on a formula simplification that was a NOOP. DAG size: 218 [2021-02-24 03:39:13,224 WARN L202 SmtUtils]: Spent 850.00 ms on a formula simplification. DAG size of input: 220 DAG size of output: 218 [2021-02-24 03:39:14,316 WARN L202 SmtUtils]: Spent 418.00 ms on a formula simplification that was a NOOP. DAG size: 217 [2021-02-24 03:39:16,072 WARN L202 SmtUtils]: Spent 306.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2021-02-24 03:39:16,504 WARN L202 SmtUtils]: Spent 375.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2021-02-24 03:39:17,135 WARN L202 SmtUtils]: Spent 374.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2021-02-24 03:39:17,537 WARN L202 SmtUtils]: Spent 347.00 ms on a formula simplification that was a NOOP. DAG size: 210 [2021-02-24 03:39:17,981 WARN L202 SmtUtils]: Spent 394.00 ms on a formula simplification that was a NOOP. DAG size: 207 [2021-02-24 03:39:18,430 WARN L202 SmtUtils]: Spent 370.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2021-02-24 03:39:18,904 WARN L202 SmtUtils]: Spent 387.00 ms on a formula simplification that was a NOOP. DAG size: 210 [2021-02-24 03:39:19,329 WARN L202 SmtUtils]: Spent 379.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2021-02-24 03:39:23,762 WARN L202 SmtUtils]: Spent 398.00 ms on a formula simplification that was a NOOP. DAG size: 227 [2021-02-24 03:39:24,442 WARN L202 SmtUtils]: Spent 433.00 ms on a formula simplification that was a NOOP. DAG size: 225 [2021-02-24 03:39:25,173 WARN L202 SmtUtils]: Spent 425.00 ms on a formula simplification that was a NOOP. DAG size: 225 [2021-02-24 03:39:25,916 WARN L202 SmtUtils]: Spent 461.00 ms on a formula simplification that was a NOOP. DAG size: 227 [2021-02-24 03:39:30,194 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-24 03:39:30,194 INFO L93 Difference]: Finished difference Result 2509 states and 3105 transitions. [2021-02-24 03:39:30,195 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 314 states. [2021-02-24 03:39:30,195 INFO L78 Accepts]: Start accepts. Automaton has 40 states. Word has length 210 [2021-02-24 03:39:30,196 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-24 03:39:30,204 INFO L225 Difference]: With dead ends: 2509 [2021-02-24 03:39:30,204 INFO L226 Difference]: Without dead ends: 1066 [2021-02-24 03:39:30,235 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 443 GetRequests, 94 SyntacticMatches, 1 SemanticMatches, 348 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 53047 ImplicationChecksByTransitivity, 43.3s TimeCoverageRelationStatistics Valid=9963, Invalid=112187, Unknown=0, NotChecked=0, Total=122150 [2021-02-24 03:39:30,237 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1066 states. [2021-02-24 03:39:30,640 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1066 to 694. [2021-02-24 03:39:30,641 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 694 states. [2021-02-24 03:39:30,646 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 694 states to 694 states and 760 transitions. [2021-02-24 03:39:30,647 INFO L78 Accepts]: Start accepts. Automaton has 694 states and 760 transitions. Word has length 210 [2021-02-24 03:39:30,648 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-24 03:39:30,648 INFO L480 AbstractCegarLoop]: Abstraction has 694 states and 760 transitions. [2021-02-24 03:39:30,648 INFO L481 AbstractCegarLoop]: Interpolant automaton has 40 states. [2021-02-24 03:39:30,648 INFO L276 IsEmpty]: Start isEmpty. Operand 694 states and 760 transitions. [2021-02-24 03:39:30,656 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 265 [2021-02-24 03:39:30,656 INFO L414 BasicCegarLoop]: Found error trace [2021-02-24 03:39:30,657 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] [2021-02-24 03:39:30,657 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-02-24 03:39:30,657 INFO L428 AbstractCegarLoop]: === Iteration 7 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-24 03:39:30,657 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-24 03:39:30,658 INFO L82 PathProgramCache]: Analyzing trace with hash 751909407, now seen corresponding path program 1 times [2021-02-24 03:39:30,658 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-24 03:39:30,658 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2097355961] [2021-02-24 03:39:30,658 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-24 03:39:30,692 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$Toolchain.processToolchain(ToolchainManager.java:320) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) [2021-02-24 03:39:30,698 INFO L168 Benchmark]: Toolchain (without parser) took 86866.06 ms. Allocated memory was 154.1 MB in the beginning and 791.7 MB in the end (delta: 637.5 MB). Free memory was 130.1 MB in the beginning and 467.4 MB in the end (delta: -337.2 MB). Peak memory consumption was 301.8 MB. Max. memory is 8.0 GB. [2021-02-24 03:39:30,699 INFO L168 Benchmark]: CDTParser took 0.20 ms. Allocated memory is still 154.1 MB. Free memory is still 133.2 MB. There was no memory consumed. Max. memory is 8.0 GB. [2021-02-24 03:39:30,699 INFO L168 Benchmark]: CACSL2BoogieTranslator took 619.78 ms. Allocated memory is still 154.1 MB. Free memory was 129.1 MB in the beginning and 108.7 MB in the end (delta: 20.4 MB). Peak memory consumption was 21.0 MB. Max. memory is 8.0 GB. [2021-02-24 03:39:30,699 INFO L168 Benchmark]: Boogie Preprocessor took 96.86 ms. Allocated memory is still 154.1 MB. Free memory was 108.5 MB in the beginning and 104.4 MB in the end (delta: 4.1 MB). Peak memory consumption was 4.2 MB. Max. memory is 8.0 GB. [2021-02-24 03:39:30,700 INFO L168 Benchmark]: RCFGBuilder took 1204.44 ms. Allocated memory is still 154.1 MB. Free memory was 104.4 MB in the beginning and 82.0 MB in the end (delta: 22.4 MB). Peak memory consumption was 58.0 MB. Max. memory is 8.0 GB. [2021-02-24 03:39:30,701 INFO L168 Benchmark]: TraceAbstraction took 84924.60 ms. Allocated memory was 154.1 MB in the beginning and 791.7 MB in the end (delta: 637.5 MB). Free memory was 81.5 MB in the beginning and 467.4 MB in the end (delta: -385.9 MB). Peak memory consumption was 252.1 MB. Max. memory is 8.0 GB. [2021-02-24 03:39:30,702 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.20 ms. Allocated memory is still 154.1 MB. Free memory is still 133.2 MB. There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 619.78 ms. Allocated memory is still 154.1 MB. Free memory was 129.1 MB in the beginning and 108.7 MB in the end (delta: 20.4 MB). Peak memory consumption was 21.0 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 96.86 ms. Allocated memory is still 154.1 MB. Free memory was 108.5 MB in the beginning and 104.4 MB in the end (delta: 4.1 MB). Peak memory consumption was 4.2 MB. Max. memory is 8.0 GB. * RCFGBuilder took 1204.44 ms. Allocated memory is still 154.1 MB. Free memory was 104.4 MB in the beginning and 82.0 MB in the end (delta: 22.4 MB). Peak memory consumption was 58.0 MB. Max. memory is 8.0 GB. * TraceAbstraction took 84924.60 ms. Allocated memory was 154.1 MB in the beginning and 791.7 MB in the end (delta: 637.5 MB). Free memory was 81.5 MB in the beginning and 467.4 MB in the end (delta: -385.9 MB). Peak memory consumption was 252.1 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...