/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_product59.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.2.1-dev-b7b32d2 [2021-02-22 01:14:55,912 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-02-22 01:14:55,915 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-02-22 01:14:55,965 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-02-22 01:14:55,966 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-02-22 01:14:55,970 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-02-22 01:14:55,974 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-02-22 01:14:55,982 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-02-22 01:14:55,986 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-02-22 01:14:55,992 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-02-22 01:14:55,994 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-02-22 01:14:55,996 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-02-22 01:14:55,996 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-02-22 01:14:55,999 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-02-22 01:14:56,001 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-02-22 01:14:56,003 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-02-22 01:14:56,019 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-02-22 01:14:56,020 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-02-22 01:14:56,022 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-02-22 01:14:56,030 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-02-22 01:14:56,032 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-02-22 01:14:56,034 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-02-22 01:14:56,035 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-02-22 01:14:56,036 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-02-22 01:14:56,039 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-02-22 01:14:56,039 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-02-22 01:14:56,040 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-02-22 01:14:56,041 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-02-22 01:14:56,041 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-02-22 01:14:56,042 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-02-22 01:14:56,043 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-02-22 01:14:56,044 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-02-22 01:14:56,044 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-02-22 01:14:56,045 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-02-22 01:14:56,046 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-02-22 01:14:56,047 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-02-22 01:14:56,048 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-02-22 01:14:56,048 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-02-22 01:14:56,048 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-02-22 01:14:56,049 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-02-22 01:14:56,050 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-02-22 01:14:56,051 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/acceleratedInterpolation/acceleratedInterpolationWernerOverapprox_32.epf [2021-02-22 01:14:56,063 INFO L113 SettingsManager]: Loading preferences was successful [2021-02-22 01:14:56,063 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-02-22 01:14:56,065 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-02-22 01:14:56,065 INFO L138 SettingsManager]: * sizeof long=4 [2021-02-22 01:14:56,065 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-02-22 01:14:56,065 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-02-22 01:14:56,066 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-02-22 01:14:56,066 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-02-22 01:14:56,066 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-02-22 01:14:56,066 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-02-22 01:14:56,067 INFO L138 SettingsManager]: * sizeof long double=12 [2021-02-22 01:14:56,067 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-02-22 01:14:56,067 INFO L138 SettingsManager]: * Use constant arrays=true [2021-02-22 01:14:56,067 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-02-22 01:14:56,068 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-02-22 01:14:56,068 INFO L138 SettingsManager]: * Size of a code block=SingleStatement [2021-02-22 01:14:56,068 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-02-22 01:14:56,068 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-02-22 01:14:56,069 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-02-22 01:14:56,069 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-02-22 01:14:56,069 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=AcceleratedInterpolation [2021-02-22 01:14:56,069 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-02-22 01:14:56,070 INFO L138 SettingsManager]: * Loop acceleration method that is used by accelerated interpolation=WERNER_OVERAPPROX [2021-02-22 01:14:56,070 INFO L138 SettingsManager]: * Use separate solver for trace checks=false WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-02-22 01:14:56,455 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-02-22 01:14:56,487 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-02-22 01:14:56,490 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-02-22 01:14:56,492 INFO L271 PluginConnector]: Initializing CDTParser... [2021-02-22 01:14:56,495 INFO L275 PluginConnector]: CDTParser initialized [2021-02-22 01:14:56,496 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec4_product59.cil.c [2021-02-22 01:14:56,600 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a9a7f93f2/82ce212866c841d685e83bea1672eadb/FLAGa238cc3ec [2021-02-22 01:14:57,272 INFO L306 CDTParser]: Found 1 translation units. [2021-02-22 01:14:57,273 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/minepump_spec4_product59.cil.c [2021-02-22 01:14:57,286 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a9a7f93f2/82ce212866c841d685e83bea1672eadb/FLAGa238cc3ec [2021-02-22 01:14:57,587 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a9a7f93f2/82ce212866c841d685e83bea1672eadb [2021-02-22 01:14:57,592 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-02-22 01:14:57,609 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2021-02-22 01:14:57,616 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-02-22 01:14:57,616 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-02-22 01:14:57,620 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-02-22 01:14:57,621 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.02 01:14:57" (1/1) ... [2021-02-22 01:14:57,623 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2bcf1811 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.02 01:14:57, skipping insertion in model container [2021-02-22 01:14:57,623 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.02 01:14:57" (1/1) ... [2021-02-22 01:14:57,632 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-02-22 01:14:57,710 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-02-22 01:14:57,996 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_product59.cil.c[8847,8860] [2021-02-22 01:14:58,130 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-02-22 01:14:58,143 INFO L203 MainTranslator]: Completed pre-run [2021-02-22 01:14:58,193 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_product59.cil.c[8847,8860] [2021-02-22 01:14:58,223 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-02-22 01:14:58,278 INFO L208 MainTranslator]: Completed translation [2021-02-22 01:14:58,278 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.02 01:14:58 WrapperNode [2021-02-22 01:14:58,279 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-02-22 01:14:58,280 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-02-22 01:14:58,280 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-02-22 01:14:58,281 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-02-22 01:14:58,295 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.02 01:14:58" (1/1) ... [2021-02-22 01:14:58,296 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.02 01:14:58" (1/1) ... [2021-02-22 01:14:58,316 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.02 01:14:58" (1/1) ... [2021-02-22 01:14:58,316 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.02 01:14:58" (1/1) ... [2021-02-22 01:14:58,351 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.02 01:14:58" (1/1) ... [2021-02-22 01:14:58,368 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.02 01:14:58" (1/1) ... [2021-02-22 01:14:58,381 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.02 01:14:58" (1/1) ... [2021-02-22 01:14:58,398 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-02-22 01:14:58,399 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-02-22 01:14:58,399 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-02-22 01:14:58,399 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-02-22 01:14:58,400 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.02 01:14:58" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-02-22 01:14:58,585 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2021-02-22 01:14:58,586 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-02-22 01:14:58,586 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2021-02-22 01:14:58,586 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2021-02-22 01:14:58,587 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2021-02-22 01:14:58,587 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2021-02-22 01:14:58,587 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2021-02-22 01:14:58,587 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2021-02-22 01:14:58,587 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification4_spec__1 [2021-02-22 01:14:58,588 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2021-02-22 01:14:58,588 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2021-02-22 01:14:58,589 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2021-02-22 01:14:58,589 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__highWaterSensor [2021-02-22 01:14:58,589 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2021-02-22 01:14:58,590 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump__wrappee__lowWaterSensor [2021-02-22 01:14:58,590 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2021-02-22 01:14:58,590 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2021-02-22 01:14:58,591 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2021-02-22 01:14:58,591 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2021-02-22 01:14:58,594 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2021-02-22 01:14:58,595 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterLevel [2021-02-22 01:14:58,595 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterLevel [2021-02-22 01:14:58,595 INFO L138 BoogieDeclarations]: Found implementation of procedure stopSystem [2021-02-22 01:14:58,596 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2021-02-22 01:14:58,596 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2021-02-22 01:14:58,596 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2021-02-22 01:14:58,596 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2021-02-22 01:14:58,596 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2021-02-22 01:14:58,597 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2021-02-22 01:14:58,597 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2021-02-22 01:14:58,597 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2021-02-22 01:14:58,597 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2021-02-22 01:14:58,597 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2021-02-22 01:14:58,598 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2021-02-22 01:14:58,598 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterSensorDry [2021-02-22 01:14:58,598 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterSensorDry [2021-02-22 01:14:58,598 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2021-02-22 01:14:58,598 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2021-02-22 01:14:58,598 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2021-02-22 01:14:58,599 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2021-02-22 01:14:58,599 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2021-02-22 01:14:58,599 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2021-02-22 01:14:58,599 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2021-02-22 01:14:58,599 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2021-02-22 01:14:58,600 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2021-02-22 01:14:58,600 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2021-02-22 01:14:58,600 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-02-22 01:14:58,600 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2021-02-22 01:14:58,600 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2021-02-22 01:14:58,601 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2021-02-22 01:14:58,601 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2021-02-22 01:14:58,601 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2021-02-22 01:14:58,601 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2021-02-22 01:14:58,601 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2021-02-22 01:14:58,601 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2021-02-22 01:14:58,602 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2021-02-22 01:14:58,602 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification4_spec__1 [2021-02-22 01:14:58,602 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2021-02-22 01:14:58,602 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2021-02-22 01:14:58,603 INFO L130 BoogieDeclarations]: Found specification of procedure stopSystem [2021-02-22 01:14:58,603 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2021-02-22 01:14:58,603 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2021-02-22 01:14:58,603 INFO L130 BoogieDeclarations]: Found specification of procedure test [2021-02-22 01:14:58,603 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2021-02-22 01:14:58,603 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2021-02-22 01:14:58,604 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2021-02-22 01:14:58,604 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterSensorDry [2021-02-22 01:14:58,604 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterSensorDry [2021-02-22 01:14:58,604 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2021-02-22 01:14:58,604 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2021-02-22 01:14:58,604 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2021-02-22 01:14:58,605 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2021-02-22 01:14:58,605 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2021-02-22 01:14:58,605 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterLevel [2021-02-22 01:14:58,605 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__highWaterSensor [2021-02-22 01:14:58,606 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterLevel [2021-02-22 01:14:58,606 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump__wrappee__lowWaterSensor [2021-02-22 01:14:58,606 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2021-02-22 01:14:58,607 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2021-02-22 01:14:58,607 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2021-02-22 01:14:58,607 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2021-02-22 01:14:58,607 INFO L130 BoogieDeclarations]: Found specification of procedure main [2021-02-22 01:14:58,607 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2021-02-22 01:14:58,608 INFO L130 BoogieDeclarations]: Found specification of procedure free [2021-02-22 01:14:58,608 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2021-02-22 01:14:58,609 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-02-22 01:14:58,609 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-02-22 01:14:58,609 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-02-22 01:14:58,610 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-02-22 01:14:58,610 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2021-02-22 01:14:58,610 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-02-22 01:14:58,611 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2021-02-22 01:14:58,611 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2021-02-22 01:14:58,611 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-02-22 01:14:58,611 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2021-02-22 01:14:58,612 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2021-02-22 01:14:58,612 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2021-02-22 01:14:58,612 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2021-02-22 01:14:58,612 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-02-22 01:14:58,612 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-02-22 01:15:00,345 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-02-22 01:15:00,345 INFO L299 CfgBuilder]: Removed 5 assume(true) statements. [2021-02-22 01:15:00,348 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.02 01:15:00 BoogieIcfgContainer [2021-02-22 01:15:00,348 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-02-22 01:15:00,353 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-02-22 01:15:00,354 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-02-22 01:15:00,358 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-02-22 01:15:00,359 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.02 01:14:57" (1/3) ... [2021-02-22 01:15:00,359 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@cddd531 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.02 01:15:00, skipping insertion in model container [2021-02-22 01:15:00,360 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.02 01:14:58" (2/3) ... [2021-02-22 01:15:00,360 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@cddd531 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.02 01:15:00, skipping insertion in model container [2021-02-22 01:15:00,360 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.02 01:15:00" (3/3) ... [2021-02-22 01:15:00,362 INFO L111 eAbstractionObserver]: Analyzing ICFG minepump_spec4_product59.cil.c [2021-02-22 01:15:00,370 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:AcceleratedInterpolation Determinization: PREDICATE_ABSTRACTION [2021-02-22 01:15:00,376 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2021-02-22 01:15:00,395 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-02-22 01:15:00,420 INFO L376 AbstractCegarLoop]: Interprodecural is true [2021-02-22 01:15:00,420 INFO L377 AbstractCegarLoop]: Hoare is true [2021-02-22 01:15:00,420 INFO L378 AbstractCegarLoop]: Compute interpolants for AcceleratedInterpolation [2021-02-22 01:15:00,420 INFO L379 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-02-22 01:15:00,420 INFO L380 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-02-22 01:15:00,421 INFO L381 AbstractCegarLoop]: Difference is false [2021-02-22 01:15:00,421 INFO L382 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-02-22 01:15:00,421 INFO L386 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-02-22 01:15:00,447 INFO L276 IsEmpty]: Start isEmpty. Operand 346 states. [2021-02-22 01:15:00,469 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 148 [2021-02-22 01:15:00,470 INFO L414 BasicCegarLoop]: Found error trace [2021-02-22 01:15:00,471 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-02-22 01:15:00,471 INFO L428 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-22 01:15:00,478 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-22 01:15:00,478 INFO L82 PathProgramCache]: Analyzing trace with hash 1245438215, now seen corresponding path program 1 times [2021-02-22 01:15:00,488 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-22 01:15:00,489 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1676614541] [2021-02-22 01:15:00,489 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-22 01:15:00,574 INFO L218 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2021-02-22 01:15:00,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 01:15:00,958 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 01:15:00,960 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 01:15:00,961 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 01:15:00,961 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 01:15:01,421 WARN L202 SmtUtils]: Spent 445.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2021-02-22 01:15:01,434 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-22 01:15:01,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 01:15:01,533 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 01:15:01,534 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 01:15:01,558 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2021-02-22 01:15:01,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 01:15:01,564 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 01:15:01,565 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 01:15:01,565 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-02-22 01:15:01,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 01:15:01,568 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 01:15:01,569 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 01:15:01,569 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2021-02-22 01:15:01,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 01:15:01,579 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 01:15:01,581 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 01:15:01,582 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2021-02-22 01:15:01,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 01:15:01,585 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 01:15:01,588 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 01:15:01,589 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2021-02-22 01:15:01,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 01:15:01,601 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 01:15:01,602 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 01:15:01,602 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2021-02-22 01:15:01,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 01:15:01,607 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 01:15:01,610 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 01:15:01,647 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-22 01:15:01,649 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1676614541] [2021-02-22 01:15:01,651 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-22 01:15:01,651 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-02-22 01:15:01,651 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [334110461] [2021-02-22 01:15:01,657 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-02-22 01:15:01,658 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-02-22 01:15:01,671 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-02-22 01:15:01,672 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-02-22 01:15:01,675 INFO L87 Difference]: Start difference. First operand 346 states. Second operand 3 states. [2021-02-22 01:15:03,629 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-22 01:15:03,630 INFO L93 Difference]: Finished difference Result 555 states and 653 transitions. [2021-02-22 01:15:03,631 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-02-22 01:15:03,632 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 147 [2021-02-22 01:15:03,633 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-22 01:15:03,650 INFO L225 Difference]: With dead ends: 555 [2021-02-22 01:15:03,651 INFO L226 Difference]: Without dead ends: 339 [2021-02-22 01:15:03,658 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-02-22 01:15:03,679 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 339 states. [2021-02-22 01:15:03,872 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 339 to 294. [2021-02-22 01:15:03,873 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 294 states. [2021-02-22 01:15:03,878 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 294 states to 294 states and 319 transitions. [2021-02-22 01:15:03,881 INFO L78 Accepts]: Start accepts. Automaton has 294 states and 319 transitions. Word has length 147 [2021-02-22 01:15:03,883 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-22 01:15:03,884 INFO L480 AbstractCegarLoop]: Abstraction has 294 states and 319 transitions. [2021-02-22 01:15:03,884 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2021-02-22 01:15:03,884 INFO L276 IsEmpty]: Start isEmpty. Operand 294 states and 319 transitions. [2021-02-22 01:15:03,900 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 149 [2021-02-22 01:15:03,900 INFO L414 BasicCegarLoop]: Found error trace [2021-02-22 01:15:03,901 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-02-22 01:15:03,901 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-02-22 01:15:03,901 INFO L428 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-22 01:15:03,902 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-22 01:15:03,903 INFO L82 PathProgramCache]: Analyzing trace with hash 27632194, now seen corresponding path program 1 times [2021-02-22 01:15:03,903 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-22 01:15:03,904 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [751277542] [2021-02-22 01:15:03,904 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-22 01:15:03,912 INFO L218 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2021-02-22 01:15:04,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 01:15:04,124 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 01:15:04,129 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 01:15:04,131 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 01:15:04,131 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-22 01:15:04,137 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 01:15:04,138 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 01:15:04,481 WARN L202 SmtUtils]: Spent 324.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2021-02-22 01:15:04,482 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-22 01:15:04,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 01:15:04,525 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 01:15:04,526 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 01:15:04,531 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2021-02-22 01:15:04,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 01:15:04,534 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 01:15:04,535 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 01:15:04,535 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-02-22 01:15:04,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 01:15:04,537 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 01:15:04,538 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 01:15:04,538 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2021-02-22 01:15:04,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 01:15:04,541 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 01:15:04,542 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 01:15:04,542 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2021-02-22 01:15:04,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 01:15:04,545 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 01:15:04,545 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 01:15:04,546 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2021-02-22 01:15:04,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 01:15:04,548 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 01:15:04,549 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 01:15:04,549 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2021-02-22 01:15:04,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 01:15:04,552 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 01:15:04,553 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 01:15:04,607 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-22 01:15:04,607 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [751277542] [2021-02-22 01:15:04,608 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-22 01:15:04,608 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-02-22 01:15:04,608 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [793954811] [2021-02-22 01:15:04,609 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-02-22 01:15:04,610 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-02-22 01:15:04,610 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-02-22 01:15:04,611 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-02-22 01:15:04,611 INFO L87 Difference]: Start difference. First operand 294 states and 319 transitions. Second operand 4 states. [2021-02-22 01:15:05,415 WARN L202 SmtUtils]: Spent 322.00 ms on a formula simplification that was a NOOP. DAG size: 205 [2021-02-22 01:15:06,770 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-22 01:15:06,770 INFO L93 Difference]: Finished difference Result 465 states and 519 transitions. [2021-02-22 01:15:06,771 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-02-22 01:15:06,772 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 148 [2021-02-22 01:15:06,773 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-22 01:15:06,784 INFO L225 Difference]: With dead ends: 465 [2021-02-22 01:15:06,784 INFO L226 Difference]: Without dead ends: 322 [2021-02-22 01:15:06,789 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-02-22 01:15:06,790 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 322 states. [2021-02-22 01:15:06,934 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 322 to 284. [2021-02-22 01:15:06,935 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 284 states. [2021-02-22 01:15:06,937 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 284 states to 284 states and 306 transitions. [2021-02-22 01:15:06,937 INFO L78 Accepts]: Start accepts. Automaton has 284 states and 306 transitions. Word has length 148 [2021-02-22 01:15:06,938 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-22 01:15:06,938 INFO L480 AbstractCegarLoop]: Abstraction has 284 states and 306 transitions. [2021-02-22 01:15:06,938 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2021-02-22 01:15:06,938 INFO L276 IsEmpty]: Start isEmpty. Operand 284 states and 306 transitions. [2021-02-22 01:15:06,940 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 158 [2021-02-22 01:15:06,941 INFO L414 BasicCegarLoop]: Found error trace [2021-02-22 01:15:06,941 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-02-22 01:15:06,941 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-02-22 01:15:06,942 INFO L428 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-22 01:15:06,942 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-22 01:15:06,942 INFO L82 PathProgramCache]: Analyzing trace with hash -849888826, now seen corresponding path program 1 times [2021-02-22 01:15:06,942 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-22 01:15:06,943 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2075565146] [2021-02-22 01:15:06,943 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-22 01:15:06,947 INFO L218 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2021-02-22 01:15:06,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 01:15:07,047 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 01:15:07,048 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-22 01:15:07,052 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 01:15:07,052 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-22 01:15:07,053 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 01:15:07,053 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-22 01:15:07,057 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 01:15:07,058 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-22 01:15:07,063 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 01:15:07,064 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-22 01:15:07,070 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 01:15:07,070 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-22 01:15:07,071 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 01:15:07,072 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-22 01:15:07,072 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 01:15:07,073 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 01:15:07,397 WARN L202 SmtUtils]: Spent 302.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2021-02-22 01:15:07,399 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-22 01:15:07,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 01:15:07,453 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 01:15:07,453 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 01:15:07,454 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 01:15:07,455 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-02-22 01:15:07,461 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2021-02-22 01:15:07,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 01:15:07,465 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 01:15:07,466 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 01:15:07,466 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-02-22 01:15:07,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 01:15:07,469 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 01:15:07,469 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 01:15:07,470 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2021-02-22 01:15:07,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 01:15:07,480 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 01:15:07,480 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 01:15:07,489 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 01:15:07,490 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-22 01:15:07,512 WARN L141 QuantifierPusher]: treesize reduction 22, result has 33.3 percent of original size [2021-02-22 01:15:07,513 WARN L147 QuantifierPusher]: treesize reduction 22, result has 33.3 percent of original size 11 [2021-02-22 01:15:07,530 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2021-02-22 01:15:07,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 01:15:07,533 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 01:15:07,534 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 01:15:07,535 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2021-02-22 01:15:07,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 01:15:07,537 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 01:15:07,538 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 01:15:07,538 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 145 [2021-02-22 01:15:07,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 01:15:07,541 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 01:15:07,541 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 01:15:07,602 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-22 01:15:07,603 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2075565146] [2021-02-22 01:15:07,603 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-22 01:15:07,603 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-02-22 01:15:07,603 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1933801928] [2021-02-22 01:15:07,604 INFO L460 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-02-22 01:15:07,604 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-02-22 01:15:07,605 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-02-22 01:15:07,605 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2021-02-22 01:15:07,605 INFO L87 Difference]: Start difference. First operand 284 states and 306 transitions. Second operand 9 states. [2021-02-22 01:15:08,247 WARN L202 SmtUtils]: Spent 338.00 ms on a formula simplification that was a NOOP. DAG size: 204 [2021-02-22 01:15:08,726 WARN L202 SmtUtils]: Spent 347.00 ms on a formula simplification that was a NOOP. DAG size: 207 [2021-02-22 01:15:09,081 WARN L202 SmtUtils]: Spent 335.00 ms on a formula simplification that was a NOOP. DAG size: 209 [2021-02-22 01:15:09,505 WARN L202 SmtUtils]: Spent 383.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2021-02-22 01:15:09,861 WARN L202 SmtUtils]: Spent 323.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2021-02-22 01:15:10,225 WARN L202 SmtUtils]: Spent 331.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2021-02-22 01:15:11,295 WARN L202 SmtUtils]: Spent 322.00 ms on a formula simplification that was a NOOP. DAG size: 205 [2021-02-22 01:15:14,425 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-22 01:15:14,426 INFO L93 Difference]: Finished difference Result 757 states and 863 transitions. [2021-02-22 01:15:14,429 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-02-22 01:15:14,429 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 157 [2021-02-22 01:15:14,431 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-22 01:15:14,435 INFO L225 Difference]: With dead ends: 757 [2021-02-22 01:15:14,435 INFO L226 Difference]: Without dead ends: 588 [2021-02-22 01:15:14,437 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 [2021-02-22 01:15:14,438 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 588 states. [2021-02-22 01:15:14,724 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 588 to 517. [2021-02-22 01:15:14,724 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 517 states. [2021-02-22 01:15:14,728 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 517 states to 517 states and 575 transitions. [2021-02-22 01:15:14,728 INFO L78 Accepts]: Start accepts. Automaton has 517 states and 575 transitions. Word has length 157 [2021-02-22 01:15:14,729 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-22 01:15:14,729 INFO L480 AbstractCegarLoop]: Abstraction has 517 states and 575 transitions. [2021-02-22 01:15:14,729 INFO L481 AbstractCegarLoop]: Interpolant automaton has 9 states. [2021-02-22 01:15:14,729 INFO L276 IsEmpty]: Start isEmpty. Operand 517 states and 575 transitions. [2021-02-22 01:15:14,732 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 167 [2021-02-22 01:15:14,733 INFO L414 BasicCegarLoop]: Found error trace [2021-02-22 01:15:14,733 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-02-22 01:15:14,733 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-02-22 01:15:14,733 INFO L428 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-22 01:15:14,734 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-22 01:15:14,734 INFO L82 PathProgramCache]: Analyzing trace with hash -1906164246, now seen corresponding path program 1 times [2021-02-22 01:15:14,734 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-22 01:15:14,735 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1021610530] [2021-02-22 01:15:14,735 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-22 01:15:14,738 INFO L218 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2021-02-22 01:15:14,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 01:15:14,817 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 01:15:14,818 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-22 01:15:14,821 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 01:15:14,821 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-22 01:15:14,822 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 01:15:14,822 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-22 01:15:14,827 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 01:15:14,828 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-22 01:15:14,833 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 01:15:14,833 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-22 01:15:14,841 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 01:15:14,841 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-22 01:15:14,842 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 01:15:14,842 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-22 01:15:14,843 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 01:15:14,846 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-22 01:15:14,847 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 01:15:14,848 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-22 01:15:14,856 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 01:15:14,859 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-22 01:15:14,867 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 01:15:14,867 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 01:15:15,265 WARN L202 SmtUtils]: Spent 376.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2021-02-22 01:15:15,267 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-22 01:15:15,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 01:15:15,323 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 01:15:15,324 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 01:15:15,325 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 01:15:15,326 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-02-22 01:15:15,336 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2021-02-22 01:15:15,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 01:15:15,340 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 01:15:15,341 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 01:15:15,341 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-02-22 01:15:15,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 01:15:15,344 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 01:15:15,345 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 01:15:15,345 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2021-02-22 01:15:15,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 01:15:15,357 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 01:15:15,360 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 01:15:15,366 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 01:15:15,370 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-22 01:15:15,389 WARN L141 QuantifierPusher]: treesize reduction 22, result has 33.3 percent of original size [2021-02-22 01:15:15,390 WARN L147 QuantifierPusher]: treesize reduction 22, result has 33.3 percent of original size 11 [2021-02-22 01:15:15,421 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2021-02-22 01:15:15,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 01:15:15,425 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 01:15:15,426 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 01:15:15,446 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2021-02-22 01:15:15,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 01:15:15,450 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 01:15:15,451 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 01:15:15,451 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 144 [2021-02-22 01:15:15,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 01:15:15,456 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 01:15:15,457 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 01:15:15,458 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 01:15:15,458 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-22 01:15:15,484 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 01:15:15,485 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-22 01:15:15,504 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 154 [2021-02-22 01:15:15,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 01:15:15,507 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 01:15:15,507 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 01:15:15,570 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-22 01:15:15,571 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1021610530] [2021-02-22 01:15:15,571 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-22 01:15:15,571 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2021-02-22 01:15:15,572 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1157496339] [2021-02-22 01:15:15,572 INFO L460 AbstractCegarLoop]: Interpolant automaton has 14 states [2021-02-22 01:15:15,572 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-02-22 01:15:15,573 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2021-02-22 01:15:15,573 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=155, Unknown=0, NotChecked=0, Total=182 [2021-02-22 01:15:15,573 INFO L87 Difference]: Start difference. First operand 517 states and 575 transitions. Second operand 14 states. [2021-02-22 01:15:16,192 WARN L202 SmtUtils]: Spent 306.00 ms on a formula simplification that was a NOOP. DAG size: 204 [2021-02-22 01:15:16,686 WARN L202 SmtUtils]: Spent 340.00 ms on a formula simplification that was a NOOP. DAG size: 207 [2021-02-22 01:15:17,192 WARN L202 SmtUtils]: Spent 448.00 ms on a formula simplification that was a NOOP. DAG size: 209 [2021-02-22 01:15:17,634 WARN L202 SmtUtils]: Spent 387.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2021-02-22 01:15:18,028 WARN L202 SmtUtils]: Spent 355.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2021-02-22 01:15:18,409 WARN L202 SmtUtils]: Spent 350.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2021-02-22 01:15:19,373 WARN L202 SmtUtils]: Spent 400.00 ms on a formula simplification that was a NOOP. DAG size: 205 [2021-02-22 01:15:20,932 WARN L202 SmtUtils]: Spent 325.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2021-02-22 01:15:21,415 WARN L202 SmtUtils]: Spent 338.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2021-02-22 01:15:22,032 WARN L202 SmtUtils]: Spent 335.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2021-02-22 01:15:22,493 WARN L202 SmtUtils]: Spent 349.00 ms on a formula simplification that was a NOOP. DAG size: 207 [2021-02-22 01:15:22,865 WARN L202 SmtUtils]: Spent 315.00 ms on a formula simplification that was a NOOP. DAG size: 204 [2021-02-22 01:15:23,236 WARN L202 SmtUtils]: Spent 341.00 ms on a formula simplification that was a NOOP. DAG size: 211 [2021-02-22 01:15:23,630 WARN L202 SmtUtils]: Spent 350.00 ms on a formula simplification that was a NOOP. DAG size: 209 [2021-02-22 01:15:24,031 WARN L202 SmtUtils]: Spent 330.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2021-02-22 01:15:24,398 WARN L202 SmtUtils]: Spent 335.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2021-02-22 01:15:24,909 WARN L202 SmtUtils]: Spent 304.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2021-02-22 01:15:25,427 WARN L202 SmtUtils]: Spent 346.00 ms on a formula simplification that was a NOOP. DAG size: 211 [2021-02-22 01:15:25,869 WARN L202 SmtUtils]: Spent 347.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2021-02-22 01:15:26,402 WARN L202 SmtUtils]: Spent 323.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2021-02-22 01:15:29,106 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-22 01:15:29,106 INFO L93 Difference]: Finished difference Result 1817 states and 2236 transitions. [2021-02-22 01:15:29,107 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2021-02-22 01:15:29,107 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 166 [2021-02-22 01:15:29,107 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-22 01:15:29,119 INFO L225 Difference]: With dead ends: 1817 [2021-02-22 01:15:29,119 INFO L226 Difference]: Without dead ends: 1415 [2021-02-22 01:15:29,122 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 56 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 230 ImplicationChecksByTransitivity, 7.9s TimeCoverageRelationStatistics Valid=252, Invalid=1008, Unknown=0, NotChecked=0, Total=1260 [2021-02-22 01:15:29,124 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1415 states. [2021-02-22 01:15:29,687 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1415 to 1276. [2021-02-22 01:15:29,687 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1276 states. [2021-02-22 01:15:29,697 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1276 states to 1276 states and 1488 transitions. [2021-02-22 01:15:29,697 INFO L78 Accepts]: Start accepts. Automaton has 1276 states and 1488 transitions. Word has length 166 [2021-02-22 01:15:29,698 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-22 01:15:29,698 INFO L480 AbstractCegarLoop]: Abstraction has 1276 states and 1488 transitions. [2021-02-22 01:15:29,698 INFO L481 AbstractCegarLoop]: Interpolant automaton has 14 states. [2021-02-22 01:15:29,698 INFO L276 IsEmpty]: Start isEmpty. Operand 1276 states and 1488 transitions. [2021-02-22 01:15:29,703 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 172 [2021-02-22 01:15:29,703 INFO L414 BasicCegarLoop]: Found error trace [2021-02-22 01:15:29,704 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-02-22 01:15:29,704 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-02-22 01:15:29,704 INFO L428 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-22 01:15:29,705 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-22 01:15:29,705 INFO L82 PathProgramCache]: Analyzing trace with hash -2017136097, now seen corresponding path program 1 times [2021-02-22 01:15:29,705 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-22 01:15:29,705 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [31575052] [2021-02-22 01:15:29,705 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-22 01:15:29,709 INFO L218 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2021-02-22 01:15:29,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 01:15:29,777 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 01:15:29,777 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-22 01:15:29,780 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 01:15:29,781 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-22 01:15:29,781 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 01:15:29,784 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-22 01:15:29,784 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 01:15:29,785 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-22 01:15:29,785 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 01:15:29,786 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-22 01:15:29,787 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 01:15:29,788 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-22 01:15:29,788 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 01:15:29,788 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 01:15:30,086 WARN L202 SmtUtils]: Spent 287.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2021-02-22 01:15:30,087 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-22 01:15:30,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 01:15:30,143 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 01:15:30,143 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 01:15:30,144 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 01:15:30,145 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-22 01:15:30,150 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2021-02-22 01:15:30,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 01:15:30,157 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 01:15:30,157 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 01:15:30,157 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-02-22 01:15:30,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 01:15:30,162 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 01:15:30,163 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 01:15:30,163 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2021-02-22 01:15:30,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 01:15:30,166 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 01:15:30,167 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 01:15:30,167 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2021-02-22 01:15:30,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 01:15:30,169 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 01:15:30,170 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 01:15:30,180 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2021-02-22 01:15:30,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 01:15:30,187 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 01:15:30,188 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-22 01:15:30,197 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2021-02-22 01:15:30,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 01:15:30,200 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 01:15:30,200 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 01:15:30,200 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 149 [2021-02-22 01:15:30,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 01:15:30,205 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 01:15:30,206 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 01:15:30,206 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 159 [2021-02-22 01:15:30,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 01:15:30,209 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 01:15:30,211 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 01:15:30,248 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-22 01:15:30,250 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [31575052] [2021-02-22 01:15:30,250 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-22 01:15:30,251 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-02-22 01:15:30,251 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1482372051] [2021-02-22 01:15:30,252 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-02-22 01:15:30,252 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-02-22 01:15:30,254 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-02-22 01:15:30,254 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-02-22 01:15:30,255 INFO L87 Difference]: Start difference. First operand 1276 states and 1488 transitions. Second operand 6 states. [2021-02-22 01:15:30,916 WARN L202 SmtUtils]: Spent 370.00 ms on a formula simplification that was a NOOP. DAG size: 204 [2021-02-22 01:15:33,946 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-22 01:15:33,946 INFO L93 Difference]: Finished difference Result 2877 states and 3547 transitions. [2021-02-22 01:15:33,947 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-02-22 01:15:33,947 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 171 [2021-02-22 01:15:33,948 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-22 01:15:33,960 INFO L225 Difference]: With dead ends: 2877 [2021-02-22 01:15:33,960 INFO L226 Difference]: Without dead ends: 1716 [2021-02-22 01:15:33,966 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=42, Invalid=68, Unknown=0, NotChecked=0, Total=110 [2021-02-22 01:15:33,969 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1716 states. [2021-02-22 01:15:34,641 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1716 to 1593. [2021-02-22 01:15:34,641 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1593 states. [2021-02-22 01:15:34,650 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1593 states to 1593 states and 1859 transitions. [2021-02-22 01:15:34,652 INFO L78 Accepts]: Start accepts. Automaton has 1593 states and 1859 transitions. Word has length 171 [2021-02-22 01:15:34,652 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-22 01:15:34,652 INFO L480 AbstractCegarLoop]: Abstraction has 1593 states and 1859 transitions. [2021-02-22 01:15:34,652 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2021-02-22 01:15:34,653 INFO L276 IsEmpty]: Start isEmpty. Operand 1593 states and 1859 transitions. [2021-02-22 01:15:34,658 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 211 [2021-02-22 01:15:34,658 INFO L414 BasicCegarLoop]: Found error trace [2021-02-22 01:15:34,659 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-02-22 01:15:34,659 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-02-22 01:15:34,659 INFO L428 AbstractCegarLoop]: === Iteration 6 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-22 01:15:34,660 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-22 01:15:34,660 INFO L82 PathProgramCache]: Analyzing trace with hash 276556344, now seen corresponding path program 1 times [2021-02-22 01:15:34,660 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-22 01:15:34,660 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [609668094] [2021-02-22 01:15:34,661 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-22 01:15:34,717 WARN L141 QuantifierPusher]: treesize reduction 3, result has 96.6 percent of original size [2021-02-22 01:15:34,741 WARN L147 QuantifierPusher]: treesize reduction 3, result has 96.6 percent of original size 86 [2021-02-22 01:15:34,751 WARN L141 QuantifierPusher]: treesize reduction 3, result has 96.6 percent of original size [2021-02-22 01:15:34,759 WARN L147 QuantifierPusher]: treesize reduction 3, result has 96.6 percent of original size 86 [2021-02-22 01:15:34,824 WARN L141 QuantifierPusher]: treesize reduction 41, result has 16.3 percent of original size [2021-02-22 01:15:34,836 WARN L147 QuantifierPusher]: treesize reduction 41, result has 16.3 percent of original size 8 [2021-02-22 01:15:34,841 WARN L141 QuantifierPusher]: treesize reduction 11, result has 83.1 percent of original size [2021-02-22 01:15:34,844 WARN L147 QuantifierPusher]: treesize reduction 11, result has 83.1 percent of original size 54 [2021-02-22 01:15:34,849 WARN L141 QuantifierPusher]: treesize reduction 5, result has 94.4 percent of original size [2021-02-22 01:15:34,856 WARN L147 QuantifierPusher]: treesize reduction 5, result has 94.4 percent of original size 84 [2021-02-22 01:15:34,861 WARN L141 QuantifierPusher]: treesize reduction 5, result has 94.4 percent of original size [2021-02-22 01:15:34,868 WARN L147 QuantifierPusher]: treesize reduction 5, result has 94.4 percent of original size 84 [2021-02-22 01:15:34,929 WARN L141 QuantifierPusher]: treesize reduction 41, result has 16.3 percent of original size [2021-02-22 01:15:34,931 WARN L147 QuantifierPusher]: treesize reduction 41, result has 16.3 percent of original size 8 [2021-02-22 01:15:34,935 WARN L141 QuantifierPusher]: treesize reduction 11, result has 83.1 percent of original size [2021-02-22 01:15:34,938 WARN L147 QuantifierPusher]: treesize reduction 11, result has 83.1 percent of original size 54 [2021-02-22 01:15:34,942 WARN L141 QuantifierPusher]: treesize reduction 5, result has 94.4 percent of original size [2021-02-22 01:15:34,948 WARN L147 QuantifierPusher]: treesize reduction 5, result has 94.4 percent of original size 84 [2021-02-22 01:15:34,953 WARN L141 QuantifierPusher]: treesize reduction 5, result has 94.4 percent of original size [2021-02-22 01:15:34,958 WARN L147 QuantifierPusher]: treesize reduction 5, result has 94.4 percent of original size 84 [2021-02-22 01:15:35,020 WARN L141 QuantifierPusher]: treesize reduction 41, result has 16.3 percent of original size [2021-02-22 01:15:35,022 WARN L147 QuantifierPusher]: treesize reduction 41, result has 16.3 percent of original size 8 [2021-02-22 01:15:35,026 WARN L141 QuantifierPusher]: treesize reduction 11, result has 83.1 percent of original size [2021-02-22 01:15:35,028 WARN L147 QuantifierPusher]: treesize reduction 11, result has 83.1 percent of original size 54 [2021-02-22 01:15:35,032 WARN L141 QuantifierPusher]: treesize reduction 3, result has 96.6 percent of original size [2021-02-22 01:15:35,038 WARN L147 QuantifierPusher]: treesize reduction 3, result has 96.6 percent of original size 86 [2021-02-22 01:15:35,042 WARN L141 QuantifierPusher]: treesize reduction 3, result has 96.6 percent of original size [2021-02-22 01:15:35,048 WARN L147 QuantifierPusher]: treesize reduction 3, result has 96.6 percent of original size 86 [2021-02-22 01:15:35,107 WARN L141 QuantifierPusher]: treesize reduction 41, result has 16.3 percent of original size [2021-02-22 01:15:35,108 WARN L147 QuantifierPusher]: treesize reduction 41, result has 16.3 percent of original size 8 [2021-02-22 01:15:35,112 WARN L141 QuantifierPusher]: treesize reduction 11, result has 83.1 percent of original size [2021-02-22 01:15:35,114 WARN L147 QuantifierPusher]: treesize reduction 11, result has 83.1 percent of original size 54 [2021-02-22 01:15:35,118 WARN L141 QuantifierPusher]: treesize reduction 3, result has 96.6 percent of original size [2021-02-22 01:15:35,124 WARN L147 QuantifierPusher]: treesize reduction 3, result has 96.6 percent of original size 86 [2021-02-22 01:15:35,128 WARN L141 QuantifierPusher]: treesize reduction 3, result has 96.6 percent of original size [2021-02-22 01:15:35,133 WARN L147 QuantifierPusher]: treesize reduction 3, result has 96.6 percent of original size 86 [2021-02-22 01:15:35,192 WARN L141 QuantifierPusher]: treesize reduction 41, result has 16.3 percent of original size [2021-02-22 01:15:35,193 WARN L147 QuantifierPusher]: treesize reduction 41, result has 16.3 percent of original size 8 [2021-02-22 01:15:35,196 WARN L141 QuantifierPusher]: treesize reduction 11, result has 83.1 percent of original size [2021-02-22 01:15:35,198 WARN L147 QuantifierPusher]: treesize reduction 11, result has 83.1 percent of original size 54 [2021-02-22 01:15:35,201 WARN L141 QuantifierPusher]: treesize reduction 3, result has 96.6 percent of original size [2021-02-22 01:15:35,206 WARN L147 QuantifierPusher]: treesize reduction 3, result has 96.6 percent of original size 86 [2021-02-22 01:15:35,210 WARN L141 QuantifierPusher]: treesize reduction 3, result has 96.6 percent of original size [2021-02-22 01:15:35,215 WARN L147 QuantifierPusher]: treesize reduction 3, result has 96.6 percent of original size 86 [2021-02-22 01:15:35,268 WARN L141 QuantifierPusher]: treesize reduction 41, result has 16.3 percent of original size [2021-02-22 01:15:35,270 WARN L147 QuantifierPusher]: treesize reduction 41, result has 16.3 percent of original size 8 [2021-02-22 01:15:35,272 WARN L141 QuantifierPusher]: treesize reduction 11, result has 83.1 percent of original size [2021-02-22 01:15:35,275 WARN L147 QuantifierPusher]: treesize reduction 11, result has 83.1 percent of original size 54 [2021-02-22 01:15:35,278 WARN L141 QuantifierPusher]: treesize reduction 5, result has 94.4 percent of original size [2021-02-22 01:15:35,283 WARN L147 QuantifierPusher]: treesize reduction 5, result has 94.4 percent of original size 84 [2021-02-22 01:15:35,287 WARN L141 QuantifierPusher]: treesize reduction 5, result has 94.4 percent of original size [2021-02-22 01:15:35,292 WARN L147 QuantifierPusher]: treesize reduction 5, result has 94.4 percent of original size 84 [2021-02-22 01:15:35,343 WARN L141 QuantifierPusher]: treesize reduction 41, result has 16.3 percent of original size [2021-02-22 01:15:35,345 WARN L147 QuantifierPusher]: treesize reduction 41, result has 16.3 percent of original size 8 [2021-02-22 01:15:35,347 WARN L141 QuantifierPusher]: treesize reduction 11, result has 83.1 percent of original size [2021-02-22 01:15:35,349 WARN L147 QuantifierPusher]: treesize reduction 11, result has 83.1 percent of original size 54 [2021-02-22 01:15:35,351 WARN L141 QuantifierPusher]: treesize reduction 5, result has 94.4 percent of original size [2021-02-22 01:15:35,355 WARN L147 QuantifierPusher]: treesize reduction 5, result has 94.4 percent of original size 84 [2021-02-22 01:15:35,357 WARN L141 QuantifierPusher]: treesize reduction 5, result has 94.4 percent of original size [2021-02-22 01:15:35,361 WARN L147 QuantifierPusher]: treesize reduction 5, result has 94.4 percent of original size 84 [2021-02-22 01:15:35,411 WARN L141 QuantifierPusher]: treesize reduction 6, result has 87.8 percent of original size [2021-02-22 01:15:35,416 INFO L723 QuantifierPusher]: Distributing 10 disjuncts over 3 conjuncts [2021-02-22 01:15:35,421 INFO L730 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 01:15:35,422 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-02-22 01:15:35,425 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 01:15:35,430 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 115 [2021-02-22 01:15:35,433 WARN L147 QuantifierPusher]: treesize reduction 6, result has 87.8 percent of original size 43 [2021-02-22 01:15:35,438 WARN L141 QuantifierPusher]: treesize reduction 11, result has 92.0 percent of original size [2021-02-22 01:15:35,443 WARN L147 QuantifierPusher]: treesize reduction 11, result has 92.0 percent of original size 126 [2021-02-22 01:15:35,444 INFO L206 tedInterpolationCore]: Starting analysis with loop acceleration approximation UNDERAPPROXIMATION [2021-02-22 01:15:35,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 01:15:35,551 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 01:15:35,552 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 01:15:35,553 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 01:15:35,553 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-22 01:15:35,557 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 01:15:35,557 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-22 01:15:35,561 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 01:15:35,562 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-22 01:15:35,566 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 01:15:35,567 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 01:15:35,874 WARN L202 SmtUtils]: Spent 289.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2021-02-22 01:15:35,876 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-22 01:15:35,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 01:15:35,907 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 01:15:35,908 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 01:15:35,913 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2021-02-22 01:15:35,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 01:15:35,915 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 01:15:35,916 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 01:15:35,916 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-02-22 01:15:35,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 01:15:35,918 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 01:15:35,918 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 01:15:35,918 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2021-02-22 01:15:35,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 01:15:35,921 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 01:15:35,921 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 01:15:35,921 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2021-02-22 01:15:35,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 01:15:35,923 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 01:15:35,924 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 01:15:35,933 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2021-02-22 01:15:35,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 01:15:35,936 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 01:15:35,936 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 01:15:35,937 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 155 [2021-02-22 01:15:35,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 01:15:35,939 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 01:15:35,940 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 01:15:35,940 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 165 [2021-02-22 01:15:35,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 01:15:35,944 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 01:15:35,944 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 01:15:35,945 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 01:15:35,945 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-22 01:15:35,955 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 01:15:35,956 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-22 01:15:36,010 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-22 01:15:36,012 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 01:15:36,014 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-02-22 01:15:36,015 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 01:15:36,015 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-22 01:15:36,016 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 49 [2021-02-22 01:15:36,017 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 01:15:36,018 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-02-22 01:15:36,019 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 01:15:36,019 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-22 01:15:36,020 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 49 [2021-02-22 01:15:36,021 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 01:15:36,022 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-02-22 01:15:36,023 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 01:15:36,023 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-22 01:15:36,024 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 49 [2021-02-22 01:15:36,025 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 01:15:36,026 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-02-22 01:15:36,027 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 01:15:36,027 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-22 01:15:36,028 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 49 [2021-02-22 01:15:36,029 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 01:15:36,030 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-02-22 01:15:36,031 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 01:15:36,031 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-22 01:15:36,032 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 49 [2021-02-22 01:15:36,033 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 01:15:36,034 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-02-22 01:15:36,035 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 01:15:36,035 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-22 01:15:36,036 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 49 [2021-02-22 01:15:36,037 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 01:15:36,038 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 01:15:36,038 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 01:15:36,039 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-22 01:15:36,051 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 01:15:36,052 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-02-22 01:15:36,071 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 01:15:36,072 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-02-22 01:15:36,095 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 01:15:36,096 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-02-22 01:15:36,117 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 01:15:36,117 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-02-22 01:15:36,146 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 01:15:36,147 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-02-22 01:15:36,148 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 01:15:36,148 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-02-22 01:15:36,149 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-02-22 01:15:36,150 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 01:15:36,150 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-22 01:15:36,151 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-02-22 01:15:36,169 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 01:15:36,170 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-02-22 01:15:36,171 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 01:15:36,172 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-02-22 01:15:36,200 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 01:15:36,201 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 25 [2021-02-22 01:15:36,231 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 01:15:36,231 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-02-22 01:15:36,232 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 01:15:36,233 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-02-22 01:15:36,234 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 01:15:36,234 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-22 01:15:36,235 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-02-22 01:15:36,235 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 01:15:36,236 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-02-22 01:15:36,237 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-02-22 01:15:36,275 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 01:15:36,276 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-02-22 01:15:36,301 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 01:15:36,301 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-02-22 01:15:36,330 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 01:15:36,331 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-02-22 01:15:36,359 WARN L141 QuantifierPusher]: treesize reduction 8, result has 46.7 percent of original size [2021-02-22 01:15:36,360 WARN L147 QuantifierPusher]: treesize reduction 8, result has 46.7 percent of original size 7 [2021-02-22 01:15:36,386 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 01:15:36,386 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-02-22 01:15:36,424 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 01:15:36,425 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-02-22 01:15:36,464 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 01:15:36,466 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-02-22 01:15:36,499 WARN L141 QuantifierPusher]: treesize reduction 8, result has 55.6 percent of original size [2021-02-22 01:15:36,500 WARN L147 QuantifierPusher]: treesize reduction 8, result has 55.6 percent of original size 10 [2021-02-22 01:15:36,529 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 01:15:36,530 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-02-22 01:15:36,595 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 01:15:36,595 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-02-22 01:15:36,636 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 01:15:36,638 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 22 [2021-02-22 01:15:36,677 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 01:15:36,677 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 22 [2021-02-22 01:15:36,720 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 01:15:36,721 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-02-22 01:15:36,722 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 01:15:36,723 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-02-22 01:15:36,723 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 35 [2021-02-22 01:15:36,770 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 01:15:36,771 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 22 [2021-02-22 01:15:36,771 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 01:15:36,772 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 25 [2021-02-22 01:15:36,820 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 01:15:36,821 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 28 [2021-02-22 01:15:36,873 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 01:15:36,874 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 28 [2021-02-22 01:15:36,875 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 01:15:36,876 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-02-22 01:15:36,877 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 01:15:36,878 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-02-22 01:15:36,878 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 35 [2021-02-22 01:15:36,931 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 01:15:36,932 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-02-22 01:15:36,972 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 01:15:36,973 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-02-22 01:15:36,974 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 01:15:36,974 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-02-22 01:15:36,975 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 01:15:36,975 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-02-22 01:15:36,976 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 01:15:36,976 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-02-22 01:15:36,977 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 01:15:36,977 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-02-22 01:15:36,978 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 01:15:36,978 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-02-22 01:15:36,979 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 01:15:36,979 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-02-22 01:15:36,980 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 01:15:36,980 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-02-22 01:15:36,981 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 01:15:36,981 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-02-22 01:15:36,982 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 01:15:36,983 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-02-22 01:15:36,983 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 01:15:36,984 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-02-22 01:15:37,017 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 01:15:37,018 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-02-22 01:15:37,066 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 01:15:37,066 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-02-22 01:15:37,067 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 01:15:37,069 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 20 [2021-02-22 01:15:37,112 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 01:15:37,113 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-02-22 01:15:37,183 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 01:15:37,183 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-02-22 01:15:37,239 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 01:15:37,241 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 22 [2021-02-22 01:15:37,293 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 01:15:37,294 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 22 [2021-02-22 01:15:37,352 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 01:15:37,352 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 22 [2021-02-22 01:15:37,354 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 01:15:37,356 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-02-22 01:15:37,413 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 01:15:37,417 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-02-22 01:15:37,418 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 01:15:37,419 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 26 [2021-02-22 01:15:37,420 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 01:15:37,420 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 01:15:37,421 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [609668094] [2021-02-22 01:15:37,421 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-22 01:15:37,421 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [40] imperfect sequences [] total 40 [2021-02-22 01:15:37,421 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1813976447] [2021-02-22 01:15:37,422 INFO L460 AbstractCegarLoop]: Interpolant automaton has 40 states [2021-02-22 01:15:37,422 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-02-22 01:15:37,422 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 40 interpolants. [2021-02-22 01:15:37,423 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=199, Invalid=1523, Unknown=0, NotChecked=0, Total=1722 [2021-02-22 01:15:37,423 INFO L87 Difference]: Start difference. First operand 1593 states and 1859 transitions. Second operand 40 states. [2021-02-22 01:15:38,127 WARN L202 SmtUtils]: Spent 320.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2021-02-22 01:15:38,898 WARN L202 SmtUtils]: Spent 359.00 ms on a formula simplification that was a NOOP. DAG size: 209 [2021-02-22 01:15:39,379 WARN L202 SmtUtils]: Spent 411.00 ms on a formula simplification that was a NOOP. DAG size: 215 [2021-02-22 01:15:39,836 WARN L202 SmtUtils]: Spent 410.00 ms on a formula simplification that was a NOOP. DAG size: 217 [2021-02-22 01:15:40,268 WARN L202 SmtUtils]: Spent 382.00 ms on a formula simplification that was a NOOP. DAG size: 215 [2021-02-22 01:15:40,713 WARN L202 SmtUtils]: Spent 399.00 ms on a formula simplification that was a NOOP. DAG size: 217 [2021-02-22 01:15:41,166 WARN L202 SmtUtils]: Spent 375.00 ms on a formula simplification that was a NOOP. DAG size: 219 [2021-02-22 01:15:41,618 WARN L202 SmtUtils]: Spent 400.00 ms on a formula simplification that was a NOOP. DAG size: 217 [2021-02-22 01:15:42,074 WARN L202 SmtUtils]: Spent 406.00 ms on a formula simplification that was a NOOP. DAG size: 221 [2021-02-22 01:15:42,569 WARN L202 SmtUtils]: Spent 391.00 ms on a formula simplification that was a NOOP. DAG size: 219 [2021-02-22 01:15:43,015 WARN L202 SmtUtils]: Spent 376.00 ms on a formula simplification that was a NOOP. DAG size: 217 [2021-02-22 01:15:43,491 WARN L202 SmtUtils]: Spent 383.00 ms on a formula simplification that was a NOOP. DAG size: 221 [2021-02-22 01:15:44,089 WARN L202 SmtUtils]: Spent 455.00 ms on a formula simplification that was a NOOP. DAG size: 223 [2021-02-22 01:15:44,677 WARN L202 SmtUtils]: Spent 425.00 ms on a formula simplification that was a NOOP. DAG size: 221 [2021-02-22 01:15:45,186 WARN L202 SmtUtils]: Spent 383.00 ms on a formula simplification that was a NOOP. DAG size: 219 [2021-02-22 01:15:45,778 WARN L202 SmtUtils]: Spent 388.00 ms on a formula simplification that was a NOOP. DAG size: 223 [2021-02-22 01:15:46,328 WARN L202 SmtUtils]: Spent 415.00 ms on a formula simplification that was a NOOP. DAG size: 225 [2021-02-22 01:15:46,903 WARN L202 SmtUtils]: Spent 410.00 ms on a formula simplification that was a NOOP. DAG size: 223 [2021-02-22 01:15:47,441 WARN L202 SmtUtils]: Spent 412.00 ms on a formula simplification that was a NOOP. DAG size: 225 [2021-02-22 01:15:47,974 WARN L202 SmtUtils]: Spent 392.00 ms on a formula simplification that was a NOOP. DAG size: 218 [2021-02-22 01:15:48,929 WARN L202 SmtUtils]: Spent 347.00 ms on a formula simplification that was a NOOP. DAG size: 207 [2021-02-22 01:15:49,736 WARN L202 SmtUtils]: Spent 354.00 ms on a formula simplification that was a NOOP. DAG size: 209 [2021-02-22 01:15:50,234 WARN L202 SmtUtils]: Spent 365.00 ms on a formula simplification that was a NOOP. DAG size: 211 [2021-02-22 01:15:50,713 WARN L202 SmtUtils]: Spent 354.00 ms on a formula simplification that was a NOOP. DAG size: 209 [2021-02-22 01:15:51,158 WARN L202 SmtUtils]: Spent 370.00 ms on a formula simplification that was a NOOP. DAG size: 212 [2021-02-22 01:15:51,611 WARN L202 SmtUtils]: Spent 383.00 ms on a formula simplification that was a NOOP. DAG size: 214 [2021-02-22 01:15:52,072 WARN L202 SmtUtils]: Spent 392.00 ms on a formula simplification that was a NOOP. DAG size: 212 [2021-02-22 01:15:52,540 WARN L202 SmtUtils]: Spent 398.00 ms on a formula simplification that was a NOOP. DAG size: 214 [2021-02-22 01:15:53,018 WARN L202 SmtUtils]: Spent 379.00 ms on a formula simplification that was a NOOP. DAG size: 212 [2021-02-22 01:15:54,181 WARN L202 SmtUtils]: Spent 411.00 ms on a formula simplification that was a NOOP. DAG size: 222 [2021-02-22 01:15:55,267 WARN L202 SmtUtils]: Spent 839.00 ms on a formula simplification. DAG size of input: 224 DAG size of output: 222 [2021-02-22 01:15:58,373 WARN L202 SmtUtils]: Spent 425.00 ms on a formula simplification that was a NOOP. DAG size: 223 [2021-02-22 01:15:59,747 WARN L202 SmtUtils]: Spent 371.00 ms on a formula simplification that was a NOOP. DAG size: 214 [2021-02-22 01:16:00,360 WARN L202 SmtUtils]: Spent 400.00 ms on a formula simplification that was a NOOP. DAG size: 219 [2021-02-22 01:16:00,833 WARN L202 SmtUtils]: Spent 415.00 ms on a formula simplification that was a NOOP. DAG size: 216 [2021-02-22 01:16:01,998 WARN L202 SmtUtils]: Spent 768.00 ms on a formula simplification. DAG size of input: 216 DAG size of output: 214 [2021-02-22 01:16:03,063 WARN L202 SmtUtils]: Spent 787.00 ms on a formula simplification. DAG size of input: 219 DAG size of output: 216 [2021-02-22 01:16:03,666 WARN L202 SmtUtils]: Spent 457.00 ms on a formula simplification that was a NOOP. DAG size: 225 [2021-02-22 01:16:04,143 WARN L202 SmtUtils]: Spent 380.00 ms on a formula simplification that was a NOOP. DAG size: 223 [2021-02-22 01:16:04,742 WARN L202 SmtUtils]: Spent 413.00 ms on a formula simplification that was a NOOP. DAG size: 223 [2021-02-22 01:16:05,117 WARN L202 SmtUtils]: Spent 329.00 ms on a formula simplification that was a NOOP. DAG size: 204 [2021-02-22 01:16:05,614 WARN L202 SmtUtils]: Spent 424.00 ms on a formula simplification that was a NOOP. DAG size: 225 [2021-02-22 01:16:06,533 WARN L202 SmtUtils]: Spent 337.00 ms on a formula simplification that was a NOOP. DAG size: 209 [2021-02-22 01:16:07,100 WARN L202 SmtUtils]: Spent 345.00 ms on a formula simplification that was a NOOP. DAG size: 211 [2021-02-22 01:16:07,615 WARN L202 SmtUtils]: Spent 378.00 ms on a formula simplification that was a NOOP. DAG size: 214 [2021-02-22 01:16:08,297 WARN L202 SmtUtils]: Spent 386.00 ms on a formula simplification that was a NOOP. DAG size: 216 [2021-02-22 01:16:08,819 WARN L202 SmtUtils]: Spent 413.00 ms on a formula simplification that was a NOOP. DAG size: 214 [2021-02-22 01:16:09,881 WARN L202 SmtUtils]: Spent 372.00 ms on a formula simplification that was a NOOP. DAG size: 216 [2021-02-22 01:16:10,442 WARN L202 SmtUtils]: Spent 374.00 ms on a formula simplification that was a NOOP. DAG size: 216 [2021-02-22 01:16:11,052 WARN L202 SmtUtils]: Spent 361.00 ms on a formula simplification that was a NOOP. DAG size: 218 [2021-02-22 01:16:12,023 WARN L202 SmtUtils]: Spent 812.00 ms on a formula simplification. DAG size of input: 220 DAG size of output: 218 [2021-02-22 01:16:13,945 WARN L202 SmtUtils]: Spent 380.00 ms on a formula simplification that was a NOOP. DAG size: 217 [2021-02-22 01:16:15,747 WARN L202 SmtUtils]: Spent 354.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2021-02-22 01:16:16,174 WARN L202 SmtUtils]: Spent 358.00 ms on a formula simplification that was a NOOP. DAG size: 210 [2021-02-22 01:16:16,580 WARN L202 SmtUtils]: Spent 333.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2021-02-22 01:16:17,090 WARN L202 SmtUtils]: Spent 386.00 ms on a formula simplification that was a NOOP. DAG size: 210 [2021-02-22 01:16:17,484 WARN L202 SmtUtils]: Spent 349.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2021-02-22 01:16:17,973 WARN L202 SmtUtils]: Spent 341.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2021-02-22 01:16:18,360 WARN L202 SmtUtils]: Spent 345.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2021-02-22 01:16:18,877 WARN L202 SmtUtils]: Spent 354.00 ms on a formula simplification that was a NOOP. DAG size: 207 [2021-02-22 01:16:24,101 WARN L202 SmtUtils]: Spent 429.00 ms on a formula simplification that was a NOOP. DAG size: 227 [2021-02-22 01:16:24,809 WARN L202 SmtUtils]: Spent 448.00 ms on a formula simplification that was a NOOP. DAG size: 225 [2021-02-22 01:16:25,570 WARN L202 SmtUtils]: Spent 459.00 ms on a formula simplification that was a NOOP. DAG size: 225 [2021-02-22 01:16:26,375 WARN L202 SmtUtils]: Spent 468.00 ms on a formula simplification that was a NOOP. DAG size: 227 [2021-02-22 01:16:30,508 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-22 01:16:30,508 INFO L93 Difference]: Finished difference Result 2610 states and 3331 transitions. [2021-02-22 01:16:30,508 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 314 states. [2021-02-22 01:16:30,509 INFO L78 Accepts]: Start accepts. Automaton has 40 states. Word has length 210 [2021-02-22 01:16:30,509 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-22 01:16:30,521 INFO L225 Difference]: With dead ends: 2610 [2021-02-22 01:16:30,521 INFO L226 Difference]: Without dead ends: 1132 [2021-02-22 01:16:30,552 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 444 GetRequests, 95 SyntacticMatches, 1 SemanticMatches, 348 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 53053 ImplicationChecksByTransitivity, 43.8s TimeCoverageRelationStatistics Valid=9963, Invalid=112187, Unknown=0, NotChecked=0, Total=122150 [2021-02-22 01:16:30,554 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1132 states. [2021-02-22 01:16:30,889 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1132 to 762. [2021-02-22 01:16:30,889 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 762 states. [2021-02-22 01:16:30,893 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 762 states to 762 states and 866 transitions. [2021-02-22 01:16:30,894 INFO L78 Accepts]: Start accepts. Automaton has 762 states and 866 transitions. Word has length 210 [2021-02-22 01:16:30,894 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-22 01:16:30,894 INFO L480 AbstractCegarLoop]: Abstraction has 762 states and 866 transitions. [2021-02-22 01:16:30,895 INFO L481 AbstractCegarLoop]: Interpolant automaton has 40 states. [2021-02-22 01:16:30,895 INFO L276 IsEmpty]: Start isEmpty. Operand 762 states and 866 transitions. [2021-02-22 01:16:30,953 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 302 [2021-02-22 01:16:30,953 INFO L414 BasicCegarLoop]: Found error trace [2021-02-22 01:16:30,954 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-02-22 01:16:30,955 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-02-22 01:16:30,955 INFO L428 AbstractCegarLoop]: === Iteration 7 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-22 01:16:30,956 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-22 01:16:30,956 INFO L82 PathProgramCache]: Analyzing trace with hash 383903234, now seen corresponding path program 1 times [2021-02-22 01:16:30,956 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-22 01:16:30,956 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1103025167] [2021-02-22 01:16:30,957 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-22 01:16:30,990 FATAL L? ?]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction has thrown an exception: java.lang.NullPointerException at de.uni_freiburg.informatik.ultimate.lib.acceleratedinterpolation.loopaccelerator.AcceleratorWernerOverapprox.accelerateLoop(AcceleratorWernerOverapprox.java:55) at de.uni_freiburg.informatik.ultimate.lib.acceleratedinterpolation.AcceleratedInterpolationCore.acceleratedInterpolationCoreIsCorrect(AcceleratedInterpolationCore.java:183) at de.uni_freiburg.informatik.ultimate.lib.acceleratedinterpolation.AcceleratedInterpolation.(AcceleratedInterpolation.java:162) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModulePreferences.construct(IpTcStrategyModulePreferences.java:145) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getOrConstruct(IpTcStrategyModuleBase.java:100) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.isCorrect(IpTcStrategyModuleBase.java:56) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.checkFeasibility(AutomatonFreeRefinementEngine.java:241) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.executeStrategy(AutomatonFreeRefinementEngine.java:165) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.(AutomatonFreeRefinementEngine.java:84) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.(TraceAbstractionRefinementEngine.java:74) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.BasicCegarLoop.isCounterexampleFeasible(BasicCegarLoop.java:511) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterateInternal(AbstractCegarLoop.java:437) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterate(AbstractCegarLoop.java:372) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.CegarLoopUtils.getCegarLoopResult(CegarLoopUtils.java:68) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.CegarLoopUtils.getCegarLoopResult(CegarLoopUtils.java:62) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.iterateAllErrorsAtOnce(TraceAbstractionStarter.java:317) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:171) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:131) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:124) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:168) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:320) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) [2021-02-22 01:16:30,999 INFO L168 Benchmark]: Toolchain (without parser) took 93402.08 ms. Allocated memory was 151.0 MB in the beginning and 836.8 MB in the end (delta: 685.8 MB). Free memory was 126.7 MB in the beginning and 750.2 MB in the end (delta: -623.5 MB). Peak memory consumption was 63.8 MB. Max. memory is 8.0 GB. [2021-02-22 01:16:31,000 INFO L168 Benchmark]: CDTParser took 0.32 ms. Allocated memory is still 151.0 MB. Free memory is still 124.4 MB. There was no memory consumed. Max. memory is 8.0 GB. [2021-02-22 01:16:31,001 INFO L168 Benchmark]: CACSL2BoogieTranslator took 663.69 ms. Allocated memory is still 151.0 MB. Free memory was 125.7 MB in the beginning and 103.9 MB in the end (delta: 21.8 MB). Peak memory consumption was 22.0 MB. Max. memory is 8.0 GB. [2021-02-22 01:16:31,002 INFO L168 Benchmark]: Boogie Preprocessor took 118.17 ms. Allocated memory is still 151.0 MB. Free memory was 103.9 MB in the beginning and 99.9 MB in the end (delta: 4.0 MB). Peak memory consumption was 4.2 MB. Max. memory is 8.0 GB. [2021-02-22 01:16:31,002 INFO L168 Benchmark]: RCFGBuilder took 1949.10 ms. Allocated memory was 151.0 MB in the beginning and 191.9 MB in the end (delta: 40.9 MB). Free memory was 99.9 MB in the beginning and 148.2 MB in the end (delta: -48.3 MB). Peak memory consumption was 52.9 MB. Max. memory is 8.0 GB. [2021-02-22 01:16:31,002 INFO L168 Benchmark]: TraceAbstraction took 90642.97 ms. Allocated memory was 191.9 MB in the beginning and 836.8 MB in the end (delta: 644.9 MB). Free memory was 147.7 MB in the beginning and 750.2 MB in the end (delta: -602.5 MB). Peak memory consumption was 42.4 MB. Max. memory is 8.0 GB. [2021-02-22 01:16:31,003 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.32 ms. Allocated memory is still 151.0 MB. Free memory is still 124.4 MB. There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 663.69 ms. Allocated memory is still 151.0 MB. Free memory was 125.7 MB in the beginning and 103.9 MB in the end (delta: 21.8 MB). Peak memory consumption was 22.0 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 118.17 ms. Allocated memory is still 151.0 MB. Free memory was 103.9 MB in the beginning and 99.9 MB in the end (delta: 4.0 MB). Peak memory consumption was 4.2 MB. Max. memory is 8.0 GB. * RCFGBuilder took 1949.10 ms. Allocated memory was 151.0 MB in the beginning and 191.9 MB in the end (delta: 40.9 MB). Free memory was 99.9 MB in the beginning and 148.2 MB in the end (delta: -48.3 MB). Peak memory consumption was 52.9 MB. Max. memory is 8.0 GB. * TraceAbstraction took 90642.97 ms. Allocated memory was 191.9 MB in the beginning and 836.8 MB in the end (delta: 644.9 MB). Free memory was 147.7 MB in the beginning and 750.2 MB in the end (delta: -602.5 MB). Peak memory consumption was 42.4 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...