/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml -s ../../../trunk/examples/settings/automizer/acceleratedInterpolation/acceleratedInterpolationFastUPR_32.epf -i ../../../trunk/examples/svcomp/product-lines/minepump_spec5_product48.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-72570d3 [2020-08-22 18:16:19,840 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-08-22 18:16:19,842 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-08-22 18:16:19,885 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-08-22 18:16:19,885 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-08-22 18:16:19,896 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-08-22 18:16:19,898 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-08-22 18:16:19,900 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-08-22 18:16:19,901 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-08-22 18:16:19,905 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-08-22 18:16:19,906 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-08-22 18:16:19,908 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-08-22 18:16:19,909 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-08-22 18:16:19,911 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-08-22 18:16:19,913 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-08-22 18:16:19,914 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-08-22 18:16:19,916 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-08-22 18:16:19,919 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-08-22 18:16:19,921 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-08-22 18:16:19,925 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-08-22 18:16:19,926 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-08-22 18:16:19,930 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-08-22 18:16:19,931 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-08-22 18:16:19,932 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-08-22 18:16:19,938 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-08-22 18:16:19,938 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-08-22 18:16:19,938 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-08-22 18:16:19,941 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-08-22 18:16:19,941 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-08-22 18:16:19,942 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-08-22 18:16:19,942 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-08-22 18:16:19,944 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-08-22 18:16:19,945 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-08-22 18:16:19,946 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-08-22 18:16:19,947 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-08-22 18:16:19,947 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-08-22 18:16:19,947 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-08-22 18:16:19,948 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-08-22 18:16:19,948 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-08-22 18:16:19,949 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-08-22 18:16:19,950 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-08-22 18:16:19,950 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/acceleratedInterpolation/acceleratedInterpolationFastUPR_32.epf [2020-08-22 18:16:19,968 INFO L113 SettingsManager]: Loading preferences was successful [2020-08-22 18:16:19,969 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-08-22 18:16:19,971 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-08-22 18:16:19,971 INFO L138 SettingsManager]: * sizeof long=4 [2020-08-22 18:16:19,971 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-08-22 18:16:19,972 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-08-22 18:16:19,972 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-08-22 18:16:19,972 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-08-22 18:16:19,973 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-08-22 18:16:19,973 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-08-22 18:16:19,974 INFO L138 SettingsManager]: * sizeof long double=12 [2020-08-22 18:16:19,974 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-08-22 18:16:19,974 INFO L138 SettingsManager]: * Use constant arrays=true [2020-08-22 18:16:19,975 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-08-22 18:16:19,975 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-08-22 18:16:19,975 INFO L138 SettingsManager]: * Size of a code block=SingleStatement [2020-08-22 18:16:19,975 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-08-22 18:16:19,976 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-08-22 18:16:19,976 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-08-22 18:16:19,976 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-08-22 18:16:19,976 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=AcceleratedInterpolation [2020-08-22 18:16:19,976 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-08-22 18:16:19,977 INFO L138 SettingsManager]: * Use separate solver for trace checks=false [2020-08-22 18:16:20,226 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-08-22 18:16:20,236 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-08-22 18:16:20,239 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-08-22 18:16:20,240 INFO L271 PluginConnector]: Initializing CDTParser... [2020-08-22 18:16:20,241 INFO L275 PluginConnector]: CDTParser initialized [2020-08-22 18:16:20,242 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec5_product48.cil.c [2020-08-22 18:16:20,300 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/677bc1fda/f89742fc35e240aa9f6e9f25ec542add/FLAGc51fc02cd [2020-08-22 18:16:20,805 INFO L306 CDTParser]: Found 1 translation units. [2020-08-22 18:16:20,805 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/minepump_spec5_product48.cil.c [2020-08-22 18:16:20,819 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/677bc1fda/f89742fc35e240aa9f6e9f25ec542add/FLAGc51fc02cd [2020-08-22 18:16:21,078 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/677bc1fda/f89742fc35e240aa9f6e9f25ec542add [2020-08-22 18:16:21,086 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-08-22 18:16:21,088 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-08-22 18:16:21,090 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-08-22 18:16:21,090 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-08-22 18:16:21,093 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-08-22 18:16:21,094 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.08 06:16:21" (1/1) ... [2020-08-22 18:16:21,097 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7522edea and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 06:16:21, skipping insertion in model container [2020-08-22 18:16:21,097 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.08 06:16:21" (1/1) ... [2020-08-22 18:16:21,105 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-08-22 18:16:21,157 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-08-22 18:16:21,563 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-08-22 18:16:21,578 INFO L203 MainTranslator]: Completed pre-run [2020-08-22 18:16:21,731 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-08-22 18:16:21,772 INFO L208 MainTranslator]: Completed translation [2020-08-22 18:16:21,773 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 06:16:21 WrapperNode [2020-08-22 18:16:21,773 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-08-22 18:16:21,774 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-08-22 18:16:21,774 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-08-22 18:16:21,774 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-08-22 18:16:21,785 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 06:16:21" (1/1) ... [2020-08-22 18:16:21,786 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 06:16:21" (1/1) ... [2020-08-22 18:16:21,806 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 06:16:21" (1/1) ... [2020-08-22 18:16:21,807 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 06:16:21" (1/1) ... [2020-08-22 18:16:21,840 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 06:16:21" (1/1) ... [2020-08-22 18:16:21,851 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 06:16:21" (1/1) ... [2020-08-22 18:16:21,859 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 06:16:21" (1/1) ... [2020-08-22 18:16:21,876 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-08-22 18:16:21,877 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-08-22 18:16:21,877 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-08-22 18:16:21,877 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-08-22 18:16:21,878 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 06:16:21" (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 [2020-08-22 18:16:21,965 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-08-22 18:16:21,966 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-08-22 18:16:21,966 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2020-08-22 18:16:21,966 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2020-08-22 18:16:21,966 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2020-08-22 18:16:21,966 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2020-08-22 18:16:21,966 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2020-08-22 18:16:21,967 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2020-08-22 18:16:21,967 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2020-08-22 18:16:21,967 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2020-08-22 18:16:21,967 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2020-08-22 18:16:21,968 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2020-08-22 18:16:21,968 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2020-08-22 18:16:21,968 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__methaneQuery [2020-08-22 18:16:21,968 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2020-08-22 18:16:21,969 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump__wrappee__highWaterSensor [2020-08-22 18:16:21,969 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2020-08-22 18:16:21,969 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2020-08-22 18:16:21,969 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2020-08-22 18:16:21,970 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2020-08-22 18:16:21,970 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2020-08-22 18:16:21,970 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterLevel [2020-08-22 18:16:21,970 INFO L138 BoogieDeclarations]: Found implementation of procedure stopSystem [2020-08-22 18:16:21,970 INFO L138 BoogieDeclarations]: Found implementation of procedure startSystem [2020-08-22 18:16:21,971 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2020-08-22 18:16:21,971 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2020-08-22 18:16:21,971 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2020-08-22 18:16:21,971 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2020-08-22 18:16:21,971 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2020-08-22 18:16:21,971 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2020-08-22 18:16:21,972 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterSensorDry [2020-08-22 18:16:21,972 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2020-08-22 18:16:21,972 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2020-08-22 18:16:21,972 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2020-08-22 18:16:21,972 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2020-08-22 18:16:21,972 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-08-22 18:16:21,973 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification5_spec__1 [2020-08-22 18:16:21,973 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification5_spec__2 [2020-08-22 18:16:21,973 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification5_spec__3 [2020-08-22 18:16:21,973 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2020-08-22 18:16:21,973 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2020-08-22 18:16:21,973 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2020-08-22 18:16:21,973 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2020-08-22 18:16:21,974 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-08-22 18:16:21,974 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-08-22 18:16:21,974 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2020-08-22 18:16:21,974 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-08-22 18:16:21,974 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-08-22 18:16:21,974 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-08-22 18:16:21,974 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2020-08-22 18:16:21,975 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-08-22 18:16:21,975 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-08-22 18:16:21,975 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-08-22 18:16:21,975 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-08-22 18:16:21,975 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2020-08-22 18:16:21,975 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-08-22 18:16:21,976 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2020-08-22 18:16:21,976 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2020-08-22 18:16:21,976 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-08-22 18:16:21,976 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2020-08-22 18:16:21,976 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2020-08-22 18:16:21,976 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-08-22 18:16:21,976 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2020-08-22 18:16:21,977 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2020-08-22 18:16:21,977 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2020-08-22 18:16:21,977 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2020-08-22 18:16:21,977 INFO L130 BoogieDeclarations]: Found specification of procedure startSystem [2020-08-22 18:16:21,977 INFO L130 BoogieDeclarations]: Found specification of procedure stopSystem [2020-08-22 18:16:21,977 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2020-08-22 18:16:21,977 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2020-08-22 18:16:21,978 INFO L130 BoogieDeclarations]: Found specification of procedure test [2020-08-22 18:16:21,978 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2020-08-22 18:16:21,978 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2020-08-22 18:16:21,978 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2020-08-22 18:16:21,978 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterSensorDry [2020-08-22 18:16:21,978 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2020-08-22 18:16:21,979 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2020-08-22 18:16:21,979 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2020-08-22 18:16:21,979 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2020-08-22 18:16:21,979 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification5_spec__2 [2020-08-22 18:16:21,979 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification5_spec__3 [2020-08-22 18:16:21,979 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2020-08-22 18:16:21,979 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2020-08-22 18:16:21,980 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterLevel [2020-08-22 18:16:21,980 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__methaneQuery [2020-08-22 18:16:21,980 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2020-08-22 18:16:21,980 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump__wrappee__highWaterSensor [2020-08-22 18:16:21,980 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2020-08-22 18:16:21,980 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2020-08-22 18:16:21,981 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2020-08-22 18:16:21,981 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification5_spec__1 [2020-08-22 18:16:21,981 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2020-08-22 18:16:21,981 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2020-08-22 18:16:21,981 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2020-08-22 18:16:21,981 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2020-08-22 18:16:21,981 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-08-22 18:16:21,982 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2020-08-22 18:16:21,982 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-08-22 18:16:21,982 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-08-22 18:16:21,982 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-08-22 18:16:23,115 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-08-22 18:16:23,116 INFO L295 CfgBuilder]: Removed 5 assume(true) statements. [2020-08-22 18:16:23,122 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.08 06:16:23 BoogieIcfgContainer [2020-08-22 18:16:23,123 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-08-22 18:16:23,124 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-08-22 18:16:23,124 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-08-22 18:16:23,127 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-08-22 18:16:23,128 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.08 06:16:21" (1/3) ... [2020-08-22 18:16:23,129 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@40b3d5a7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.08 06:16:23, skipping insertion in model container [2020-08-22 18:16:23,129 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 06:16:21" (2/3) ... [2020-08-22 18:16:23,129 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@40b3d5a7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.08 06:16:23, skipping insertion in model container [2020-08-22 18:16:23,129 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.08 06:16:23" (3/3) ... [2020-08-22 18:16:23,131 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec5_product48.cil.c [2020-08-22 18:16:23,141 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:AcceleratedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-08-22 18:16:23,150 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-08-22 18:16:23,164 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-08-22 18:16:23,181 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-08-22 18:16:23,181 INFO L376 AbstractCegarLoop]: Hoare is true [2020-08-22 18:16:23,181 INFO L377 AbstractCegarLoop]: Compute interpolants for AcceleratedInterpolation [2020-08-22 18:16:23,181 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-08-22 18:16:23,181 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-08-22 18:16:23,182 INFO L380 AbstractCegarLoop]: Difference is false [2020-08-22 18:16:23,182 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-08-22 18:16:23,182 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-08-22 18:16:23,200 INFO L276 IsEmpty]: Start isEmpty. Operand 338 states. [2020-08-22 18:16:23,221 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 161 [2020-08-22 18:16:23,222 INFO L414 BasicCegarLoop]: Found error trace [2020-08-22 18:16:23,223 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-22 18:16:23,224 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-22 18:16:23,230 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-22 18:16:23,230 INFO L82 PathProgramCache]: Analyzing trace with hash 242208481, now seen corresponding path program 1 times [2020-08-22 18:16:23,239 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-22 18:16:23,239 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [370858848] [2020-08-22 18:16:23,240 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-22 18:16:23,308 INFO L288 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-08-22 18:16:23,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:16:23,976 WARN L193 SmtUtils]: Spent 281.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-08-22 18:16:23,979 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 18:16:23,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:16:24,093 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2020-08-22 18:16:24,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:16:24,096 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-08-22 18:16:24,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:16:24,097 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-08-22 18:16:24,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:16:24,100 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-08-22 18:16:24,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:16:24,111 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-08-22 18:16:24,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:16:24,114 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2020-08-22 18:16:24,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:16:24,118 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 18:16:24,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:16:24,120 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2020-08-22 18:16:24,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:16:24,125 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2020-08-22 18:16:24,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:16:24,161 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2020-08-22 18:16:24,163 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [370858848] [2020-08-22 18:16:24,165 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-22 18:16:24,165 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-08-22 18:16:24,166 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [627734066] [2020-08-22 18:16:24,171 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-08-22 18:16:24,172 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-22 18:16:24,185 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-08-22 18:16:24,186 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-08-22 18:16:24,188 INFO L87 Difference]: Start difference. First operand 338 states. Second operand 4 states. [2020-08-22 18:16:25,551 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-22 18:16:25,551 INFO L93 Difference]: Finished difference Result 540 states and 636 transitions. [2020-08-22 18:16:25,552 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-08-22 18:16:25,553 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 160 [2020-08-22 18:16:25,554 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-22 18:16:25,571 INFO L225 Difference]: With dead ends: 540 [2020-08-22 18:16:25,572 INFO L226 Difference]: Without dead ends: 338 [2020-08-22 18:16:25,577 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-08-22 18:16:25,597 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 338 states. [2020-08-22 18:16:25,767 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 338 to 287. [2020-08-22 18:16:25,769 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 287 states. [2020-08-22 18:16:25,775 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 287 states to 287 states and 314 transitions. [2020-08-22 18:16:25,777 INFO L78 Accepts]: Start accepts. Automaton has 287 states and 314 transitions. Word has length 160 [2020-08-22 18:16:25,778 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-22 18:16:25,778 INFO L479 AbstractCegarLoop]: Abstraction has 287 states and 314 transitions. [2020-08-22 18:16:25,778 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-08-22 18:16:25,778 INFO L276 IsEmpty]: Start isEmpty. Operand 287 states and 314 transitions. [2020-08-22 18:16:25,783 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 162 [2020-08-22 18:16:25,783 INFO L414 BasicCegarLoop]: Found error trace [2020-08-22 18:16:25,784 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-22 18:16:25,784 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-08-22 18:16:25,784 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-22 18:16:25,784 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-22 18:16:25,785 INFO L82 PathProgramCache]: Analyzing trace with hash 424618484, now seen corresponding path program 1 times [2020-08-22 18:16:25,785 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-22 18:16:25,785 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [555068896] [2020-08-22 18:16:25,786 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-22 18:16:25,788 INFO L288 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-08-22 18:16:25,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:16:26,136 WARN L193 SmtUtils]: Spent 222.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-08-22 18:16:26,137 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 18:16:26,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:16:26,176 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2020-08-22 18:16:26,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:16:26,178 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-08-22 18:16:26,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:16:26,179 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-08-22 18:16:26,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:16:26,181 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-08-22 18:16:26,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:16:26,191 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-08-22 18:16:26,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:16:26,193 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2020-08-22 18:16:26,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:16:26,196 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 18:16:26,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:16:26,198 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 138 [2020-08-22 18:16:26,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:16:26,199 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2020-08-22 18:16:26,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:16:26,226 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2020-08-22 18:16:26,227 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [555068896] [2020-08-22 18:16:26,227 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-22 18:16:26,228 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-08-22 18:16:26,228 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [832461713] [2020-08-22 18:16:26,229 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-08-22 18:16:26,229 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-22 18:16:26,230 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-08-22 18:16:26,230 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-08-22 18:16:26,230 INFO L87 Difference]: Start difference. First operand 287 states and 314 transitions. Second operand 5 states. [2020-08-22 18:16:26,822 WARN L193 SmtUtils]: Spent 183.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-08-22 18:16:27,948 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-22 18:16:27,949 INFO L93 Difference]: Finished difference Result 459 states and 520 transitions. [2020-08-22 18:16:27,949 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-08-22 18:16:27,950 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 161 [2020-08-22 18:16:27,951 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-22 18:16:27,955 INFO L225 Difference]: With dead ends: 459 [2020-08-22 18:16:27,955 INFO L226 Difference]: Without dead ends: 327 [2020-08-22 18:16:27,957 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2020-08-22 18:16:27,958 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 327 states. [2020-08-22 18:16:28,061 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 327 to 277. [2020-08-22 18:16:28,061 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 277 states. [2020-08-22 18:16:28,063 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 277 states to 277 states and 301 transitions. [2020-08-22 18:16:28,063 INFO L78 Accepts]: Start accepts. Automaton has 277 states and 301 transitions. Word has length 161 [2020-08-22 18:16:28,064 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-22 18:16:28,064 INFO L479 AbstractCegarLoop]: Abstraction has 277 states and 301 transitions. [2020-08-22 18:16:28,064 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-08-22 18:16:28,064 INFO L276 IsEmpty]: Start isEmpty. Operand 277 states and 301 transitions. [2020-08-22 18:16:28,066 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 175 [2020-08-22 18:16:28,066 INFO L414 BasicCegarLoop]: Found error trace [2020-08-22 18:16:28,067 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-22 18:16:28,067 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-08-22 18:16:28,067 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-22 18:16:28,067 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-22 18:16:28,067 INFO L82 PathProgramCache]: Analyzing trace with hash -1558569605, now seen corresponding path program 1 times [2020-08-22 18:16:28,068 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-22 18:16:28,068 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [611883423] [2020-08-22 18:16:28,068 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-22 18:16:28,070 INFO L288 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-08-22 18:16:28,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:16:28,361 WARN L193 SmtUtils]: Spent 186.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-08-22 18:16:28,363 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 18:16:28,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:16:28,395 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2020-08-22 18:16:28,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:16:28,397 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-08-22 18:16:28,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:16:28,398 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-08-22 18:16:28,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:16:28,440 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-08-22 18:16:28,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:16:28,454 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-08-22 18:16:28,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:16:28,467 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2020-08-22 18:16:28,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:16:28,483 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2020-08-22 18:16:28,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:16:28,487 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 18:16:28,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:16:28,492 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 151 [2020-08-22 18:16:28,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:16:28,500 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 161 [2020-08-22 18:16:28,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:16:28,575 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2020-08-22 18:16:28,578 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [611883423] [2020-08-22 18:16:28,578 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-22 18:16:28,578 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2020-08-22 18:16:28,580 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1443447210] [2020-08-22 18:16:28,581 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-08-22 18:16:28,581 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-22 18:16:28,582 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-08-22 18:16:28,582 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2020-08-22 18:16:28,582 INFO L87 Difference]: Start difference. First operand 277 states and 301 transitions. Second operand 11 states. [2020-08-22 18:16:29,288 WARN L193 SmtUtils]: Spent 294.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-08-22 18:16:29,564 WARN L193 SmtUtils]: Spent 194.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-08-22 18:16:29,835 WARN L193 SmtUtils]: Spent 247.00 ms on a formula simplification that was a NOOP. DAG size: 195 [2020-08-22 18:16:30,090 WARN L193 SmtUtils]: Spent 226.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-08-22 18:16:30,327 WARN L193 SmtUtils]: Spent 208.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-08-22 18:16:30,554 WARN L193 SmtUtils]: Spent 202.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-08-22 18:16:31,742 WARN L193 SmtUtils]: Spent 209.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-08-22 18:16:34,131 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-22 18:16:34,131 INFO L93 Difference]: Finished difference Result 772 states and 900 transitions. [2020-08-22 18:16:34,134 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2020-08-22 18:16:34,134 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 174 [2020-08-22 18:16:34,135 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-22 18:16:34,140 INFO L225 Difference]: With dead ends: 772 [2020-08-22 18:16:34,141 INFO L226 Difference]: Without dead ends: 610 [2020-08-22 18:16:34,142 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 51 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 81 ImplicationChecksByTransitivity, 2.0s TimeCoverageRelationStatistics Valid=168, Invalid=384, Unknown=0, NotChecked=0, Total=552 [2020-08-22 18:16:34,144 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 610 states. [2020-08-22 18:16:34,352 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 610 to 507. [2020-08-22 18:16:34,352 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 507 states. [2020-08-22 18:16:34,355 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 507 states to 507 states and 571 transitions. [2020-08-22 18:16:34,356 INFO L78 Accepts]: Start accepts. Automaton has 507 states and 571 transitions. Word has length 174 [2020-08-22 18:16:34,357 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-22 18:16:34,357 INFO L479 AbstractCegarLoop]: Abstraction has 507 states and 571 transitions. [2020-08-22 18:16:34,357 INFO L480 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-08-22 18:16:34,357 INFO L276 IsEmpty]: Start isEmpty. Operand 507 states and 571 transitions. [2020-08-22 18:16:34,360 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 180 [2020-08-22 18:16:34,360 INFO L414 BasicCegarLoop]: Found error trace [2020-08-22 18:16:34,361 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-22 18:16:34,361 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-08-22 18:16:34,361 INFO L427 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-22 18:16:34,361 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-22 18:16:34,362 INFO L82 PathProgramCache]: Analyzing trace with hash 1499637602, now seen corresponding path program 1 times [2020-08-22 18:16:34,362 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-22 18:16:34,362 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1182056622] [2020-08-22 18:16:34,362 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-22 18:16:34,365 INFO L288 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-08-22 18:16:34,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:16:34,748 WARN L193 SmtUtils]: Spent 256.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-08-22 18:16:34,750 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 18:16:34,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:16:34,843 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2020-08-22 18:16:34,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:16:34,846 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-08-22 18:16:34,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:16:34,847 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-08-22 18:16:34,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:16:34,851 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-08-22 18:16:34,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:16:34,870 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-08-22 18:16:34,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:16:34,893 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2020-08-22 18:16:34,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:16:34,898 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2020-08-22 18:16:34,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:16:34,902 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 18:16:34,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:16:34,905 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 156 [2020-08-22 18:16:34,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:16:34,909 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 166 [2020-08-22 18:16:34,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:16:35,025 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2020-08-22 18:16:35,026 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1182056622] [2020-08-22 18:16:35,027 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-22 18:16:35,027 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-08-22 18:16:35,028 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1877132342] [2020-08-22 18:16:35,029 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-08-22 18:16:35,029 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-22 18:16:35,030 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-08-22 18:16:35,031 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2020-08-22 18:16:35,031 INFO L87 Difference]: Start difference. First operand 507 states and 571 transitions. Second operand 10 states. [2020-08-22 18:16:35,722 WARN L193 SmtUtils]: Spent 295.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-08-22 18:16:36,658 WARN L193 SmtUtils]: Spent 208.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-08-22 18:16:36,886 WARN L193 SmtUtils]: Spent 201.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-08-22 18:16:38,024 WARN L193 SmtUtils]: Spent 196.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-08-22 18:16:38,268 WARN L193 SmtUtils]: Spent 212.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-08-22 18:16:38,500 WARN L193 SmtUtils]: Spent 204.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-08-22 18:16:38,825 WARN L193 SmtUtils]: Spent 194.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-08-22 18:16:39,047 WARN L193 SmtUtils]: Spent 202.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-08-22 18:16:39,324 WARN L193 SmtUtils]: Spent 211.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-08-22 18:16:40,123 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-22 18:16:40,123 INFO L93 Difference]: Finished difference Result 1194 states and 1427 transitions. [2020-08-22 18:16:40,124 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2020-08-22 18:16:40,124 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 179 [2020-08-22 18:16:40,125 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-22 18:16:40,131 INFO L225 Difference]: With dead ends: 1194 [2020-08-22 18:16:40,131 INFO L226 Difference]: Without dead ends: 802 [2020-08-22 18:16:40,133 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 57 ImplicationChecksByTransitivity, 2.4s TimeCoverageRelationStatistics Valid=143, Invalid=363, Unknown=0, NotChecked=0, Total=506 [2020-08-22 18:16:40,135 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 802 states. [2020-08-22 18:16:40,376 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 802 to 709. [2020-08-22 18:16:40,376 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 709 states. [2020-08-22 18:16:40,380 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 709 states to 709 states and 795 transitions. [2020-08-22 18:16:40,381 INFO L78 Accepts]: Start accepts. Automaton has 709 states and 795 transitions. Word has length 179 [2020-08-22 18:16:40,381 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-22 18:16:40,382 INFO L479 AbstractCegarLoop]: Abstraction has 709 states and 795 transitions. [2020-08-22 18:16:40,382 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-08-22 18:16:40,382 INFO L276 IsEmpty]: Start isEmpty. Operand 709 states and 795 transitions. [2020-08-22 18:16:40,386 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 235 [2020-08-22 18:16:40,386 INFO L414 BasicCegarLoop]: Found error trace [2020-08-22 18:16:40,387 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-22 18:16:40,387 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-08-22 18:16:40,387 INFO L427 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-22 18:16:40,388 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-22 18:16:40,388 INFO L82 PathProgramCache]: Analyzing trace with hash 1825094604, now seen corresponding path program 1 times [2020-08-22 18:16:40,388 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-22 18:16:40,388 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [566021341] [2020-08-22 18:16:40,389 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-22 18:16:40,391 INFO L288 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-08-22 18:16:40,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:16:40,744 WARN L193 SmtUtils]: Spent 278.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-08-22 18:16:40,745 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 18:16:40,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:16:40,777 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2020-08-22 18:16:40,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:16:40,782 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-08-22 18:16:40,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:16:40,783 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-08-22 18:16:40,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:16:40,788 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-08-22 18:16:40,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:16:40,796 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-08-22 18:16:40,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:16:40,804 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2020-08-22 18:16:40,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:16:40,806 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2020-08-22 18:16:40,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:16:40,808 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 18:16:40,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:16:40,816 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2020-08-22 18:16:40,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:16:40,827 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-22 18:16:40,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:16:40,850 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-22 18:16:40,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:16:40,893 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-22 18:16:40,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:16:40,896 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-08-22 18:16:40,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:16:40,900 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-22 18:16:40,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:16:40,902 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-22 18:16:40,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:16:40,904 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2020-08-22 18:16:40,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:16:40,911 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 211 [2020-08-22 18:16:40,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:16:40,913 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 221 [2020-08-22 18:16:40,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:16:40,986 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-08-22 18:16:40,986 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [566021341] [2020-08-22 18:16:40,987 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-22 18:16:40,987 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2020-08-22 18:16:40,987 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1902752051] [2020-08-22 18:16:40,988 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-08-22 18:16:40,988 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-22 18:16:40,989 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-08-22 18:16:40,989 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2020-08-22 18:16:40,989 INFO L87 Difference]: Start difference. First operand 709 states and 795 transitions. Second operand 11 states. [2020-08-22 18:16:42,529 WARN L193 SmtUtils]: Spent 206.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-08-22 18:16:42,794 WARN L193 SmtUtils]: Spent 241.00 ms on a formula simplification that was a NOOP. DAG size: 194 [2020-08-22 18:16:43,043 WARN L193 SmtUtils]: Spent 224.00 ms on a formula simplification that was a NOOP. DAG size: 197 [2020-08-22 18:16:43,282 WARN L193 SmtUtils]: Spent 197.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-08-22 18:16:43,529 WARN L193 SmtUtils]: Spent 200.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-08-22 18:16:43,756 WARN L193 SmtUtils]: Spent 191.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-08-22 18:16:45,070 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-22 18:16:45,070 INFO L93 Difference]: Finished difference Result 1515 states and 1828 transitions. [2020-08-22 18:16:45,072 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2020-08-22 18:16:45,072 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 234 [2020-08-22 18:16:45,072 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-22 18:16:45,077 INFO L225 Difference]: With dead ends: 1515 [2020-08-22 18:16:45,078 INFO L226 Difference]: Without dead ends: 921 [2020-08-22 18:16:45,080 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 61 GetRequests, 42 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 32 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=121, Invalid=299, Unknown=0, NotChecked=0, Total=420 [2020-08-22 18:16:45,082 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 921 states. [2020-08-22 18:16:45,287 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 921 to 728. [2020-08-22 18:16:45,287 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 728 states. [2020-08-22 18:16:45,291 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 728 states to 728 states and 815 transitions. [2020-08-22 18:16:45,291 INFO L78 Accepts]: Start accepts. Automaton has 728 states and 815 transitions. Word has length 234 [2020-08-22 18:16:45,292 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-22 18:16:45,292 INFO L479 AbstractCegarLoop]: Abstraction has 728 states and 815 transitions. [2020-08-22 18:16:45,292 INFO L480 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-08-22 18:16:45,292 INFO L276 IsEmpty]: Start isEmpty. Operand 728 states and 815 transitions. [2020-08-22 18:16:45,296 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 235 [2020-08-22 18:16:45,296 INFO L414 BasicCegarLoop]: Found error trace [2020-08-22 18:16:45,296 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-22 18:16:45,297 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-08-22 18:16:45,297 INFO L427 AbstractCegarLoop]: === Iteration 6 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-22 18:16:45,297 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-22 18:16:45,297 INFO L82 PathProgramCache]: Analyzing trace with hash -1802126292, now seen corresponding path program 1 times [2020-08-22 18:16:45,298 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-22 18:16:45,298 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1058712311] [2020-08-22 18:16:45,298 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-22 18:16:45,300 INFO L288 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-08-22 18:16:45,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:16:45,551 WARN L193 SmtUtils]: Spent 173.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-08-22 18:16:45,551 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 18:16:45,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:16:45,578 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2020-08-22 18:16:45,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:16:45,580 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-08-22 18:16:45,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:16:45,582 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-08-22 18:16:45,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:16:45,614 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-08-22 18:16:45,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:16:45,626 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-08-22 18:16:45,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:16:45,639 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2020-08-22 18:16:45,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:16:45,641 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2020-08-22 18:16:45,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:16:45,643 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 18:16:45,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:16:45,655 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2020-08-22 18:16:45,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:16:45,666 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-22 18:16:45,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:16:45,677 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-22 18:16:45,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:16:45,705 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-22 18:16:45,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:16:45,736 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-08-22 18:16:45,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:16:45,740 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-22 18:16:45,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:16:45,742 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-22 18:16:45,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:16:45,743 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2020-08-22 18:16:45,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:16:45,748 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 211 [2020-08-22 18:16:45,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:16:45,750 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 221 [2020-08-22 18:16:45,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:16:45,846 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-08-22 18:16:45,848 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1058712311] [2020-08-22 18:16:45,849 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-22 18:16:45,849 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2020-08-22 18:16:45,849 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1466901210] [2020-08-22 18:16:45,850 INFO L459 AbstractCegarLoop]: Interpolant automaton has 14 states [2020-08-22 18:16:45,850 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-22 18:16:45,850 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2020-08-22 18:16:45,851 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=154, Unknown=0, NotChecked=0, Total=182 [2020-08-22 18:16:45,854 INFO L87 Difference]: Start difference. First operand 728 states and 815 transitions. Second operand 14 states. [2020-08-22 18:16:46,397 WARN L193 SmtUtils]: Spent 197.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-08-22 18:16:46,637 WARN L193 SmtUtils]: Spent 215.00 ms on a formula simplification that was a NOOP. DAG size: 194 [2020-08-22 18:16:46,871 WARN L193 SmtUtils]: Spent 197.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-08-22 18:16:47,103 WARN L193 SmtUtils]: Spent 200.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-08-22 18:16:47,322 WARN L193 SmtUtils]: Spent 195.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-08-22 18:16:48,536 WARN L193 SmtUtils]: Spent 306.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-08-22 18:16:48,750 WARN L193 SmtUtils]: Spent 177.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-08-22 18:16:49,007 WARN L193 SmtUtils]: Spent 197.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-08-22 18:16:49,283 WARN L193 SmtUtils]: Spent 206.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-08-22 18:16:49,525 WARN L193 SmtUtils]: Spent 195.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-08-22 18:16:51,055 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-22 18:16:51,055 INFO L93 Difference]: Finished difference Result 1552 states and 1866 transitions. [2020-08-22 18:16:51,060 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2020-08-22 18:16:51,060 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 234 [2020-08-22 18:16:51,061 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-22 18:16:51,066 INFO L225 Difference]: With dead ends: 1552 [2020-08-22 18:16:51,066 INFO L226 Difference]: Without dead ends: 939 [2020-08-22 18:16:51,069 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 71 GetRequests, 45 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 79 ImplicationChecksByTransitivity, 2.6s TimeCoverageRelationStatistics Valid=172, Invalid=584, Unknown=0, NotChecked=0, Total=756 [2020-08-22 18:16:51,070 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 939 states. [2020-08-22 18:16:51,349 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 939 to 740. [2020-08-22 18:16:51,350 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 740 states. [2020-08-22 18:16:51,353 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 740 states to 740 states and 827 transitions. [2020-08-22 18:16:51,353 INFO L78 Accepts]: Start accepts. Automaton has 740 states and 827 transitions. Word has length 234 [2020-08-22 18:16:51,354 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-22 18:16:51,354 INFO L479 AbstractCegarLoop]: Abstraction has 740 states and 827 transitions. [2020-08-22 18:16:51,354 INFO L480 AbstractCegarLoop]: Interpolant automaton has 14 states. [2020-08-22 18:16:51,355 INFO L276 IsEmpty]: Start isEmpty. Operand 740 states and 827 transitions. [2020-08-22 18:16:51,360 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 235 [2020-08-22 18:16:51,360 INFO L414 BasicCegarLoop]: Found error trace [2020-08-22 18:16:51,360 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-22 18:16:51,361 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-08-22 18:16:51,361 INFO L427 AbstractCegarLoop]: === Iteration 7 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-22 18:16:51,361 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-22 18:16:51,361 INFO L82 PathProgramCache]: Analyzing trace with hash -1075021015, now seen corresponding path program 1 times [2020-08-22 18:16:51,361 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-22 18:16:51,362 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1911517613] [2020-08-22 18:16:51,362 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-22 18:16:51,364 INFO L288 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-08-22 18:16:51,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:16:51,643 WARN L193 SmtUtils]: Spent 176.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-08-22 18:16:51,644 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 18:16:51,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:16:51,716 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2020-08-22 18:16:51,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:16:51,718 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-08-22 18:16:51,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:16:51,721 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-08-22 18:16:51,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:16:51,727 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-08-22 18:16:51,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:16:51,744 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-08-22 18:16:51,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:16:51,766 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2020-08-22 18:16:51,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:16:51,769 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2020-08-22 18:16:51,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:16:51,772 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 18:16:51,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:16:51,786 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2020-08-22 18:16:51,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:16:51,804 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-22 18:16:51,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:16:51,819 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-22 18:16:51,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:16:51,830 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-22 18:16:51,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:16:51,845 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-08-22 18:16:51,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:16:51,849 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-22 18:16:51,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:16:51,851 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-22 18:16:51,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:16:51,853 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2020-08-22 18:16:51,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:16:51,859 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 211 [2020-08-22 18:16:51,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:16:51,860 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 221 [2020-08-22 18:16:51,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:16:51,913 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-08-22 18:16:51,913 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1911517613] [2020-08-22 18:16:51,913 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-22 18:16:51,913 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-08-22 18:16:51,914 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1705834088] [2020-08-22 18:16:51,914 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-08-22 18:16:51,914 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-22 18:16:51,915 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-08-22 18:16:51,915 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2020-08-22 18:16:51,915 INFO L87 Difference]: Start difference. First operand 740 states and 827 transitions. Second operand 8 states. [2020-08-22 18:16:52,343 WARN L193 SmtUtils]: Spent 196.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-08-22 18:16:52,950 WARN L193 SmtUtils]: Spent 190.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-08-22 18:16:55,760 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-22 18:16:55,760 INFO L93 Difference]: Finished difference Result 2321 states and 2826 transitions. [2020-08-22 18:16:55,761 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2020-08-22 18:16:55,761 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 234 [2020-08-22 18:16:55,762 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-22 18:16:55,772 INFO L225 Difference]: With dead ends: 2321 [2020-08-22 18:16:55,772 INFO L226 Difference]: Without dead ends: 1696 [2020-08-22 18:16:55,775 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 78 GetRequests, 51 SyntacticMatches, 3 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 168 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=163, Invalid=487, Unknown=0, NotChecked=0, Total=650 [2020-08-22 18:16:55,777 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1696 states. [2020-08-22 18:16:56,220 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1696 to 1428. [2020-08-22 18:16:56,220 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1428 states. [2020-08-22 18:16:56,225 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1428 states to 1428 states and 1624 transitions. [2020-08-22 18:16:56,226 INFO L78 Accepts]: Start accepts. Automaton has 1428 states and 1624 transitions. Word has length 234 [2020-08-22 18:16:56,226 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-22 18:16:56,226 INFO L479 AbstractCegarLoop]: Abstraction has 1428 states and 1624 transitions. [2020-08-22 18:16:56,226 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-08-22 18:16:56,227 INFO L276 IsEmpty]: Start isEmpty. Operand 1428 states and 1624 transitions. [2020-08-22 18:16:56,231 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 240 [2020-08-22 18:16:56,232 INFO L414 BasicCegarLoop]: Found error trace [2020-08-22 18:16:56,232 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-22 18:16:56,232 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-08-22 18:16:56,232 INFO L427 AbstractCegarLoop]: === Iteration 8 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-22 18:16:56,233 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-22 18:16:56,233 INFO L82 PathProgramCache]: Analyzing trace with hash 1371063584, now seen corresponding path program 1 times [2020-08-22 18:16:56,233 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-22 18:16:56,233 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [956984658] [2020-08-22 18:16:56,233 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-22 18:16:56,236 INFO L288 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-08-22 18:16:56,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:16:56,546 WARN L193 SmtUtils]: Spent 183.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-08-22 18:16:56,547 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 18:16:56,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:16:56,601 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2020-08-22 18:16:56,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:16:56,604 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-08-22 18:16:56,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:16:56,606 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-08-22 18:16:56,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:16:56,608 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-08-22 18:16:56,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:16:56,618 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-08-22 18:16:56,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:16:56,636 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2020-08-22 18:16:56,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:16:56,692 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2020-08-22 18:16:56,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:16:56,694 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2020-08-22 18:16:56,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:16:56,697 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 18:16:56,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:16:56,711 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 153 [2020-08-22 18:16:56,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:16:56,718 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-22 18:16:56,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:16:56,722 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-22 18:16:56,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:16:56,726 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-22 18:16:56,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:16:56,728 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-08-22 18:16:56,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:16:56,730 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-22 18:16:56,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:16:56,732 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-22 18:16:56,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:16:56,733 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2020-08-22 18:16:56,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:16:56,739 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 216 [2020-08-22 18:16:56,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:16:56,768 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 226 [2020-08-22 18:16:56,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:16:56,819 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-08-22 18:16:56,819 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [956984658] [2020-08-22 18:16:56,820 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-22 18:16:56,820 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2020-08-22 18:16:56,820 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [930585156] [2020-08-22 18:16:56,821 INFO L459 AbstractCegarLoop]: Interpolant automaton has 15 states [2020-08-22 18:16:56,821 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-22 18:16:56,821 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2020-08-22 18:16:56,821 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=177, Unknown=0, NotChecked=0, Total=210 [2020-08-22 18:16:56,821 INFO L87 Difference]: Start difference. First operand 1428 states and 1624 transitions. Second operand 15 states. [2020-08-22 18:16:57,506 WARN L193 SmtUtils]: Spent 394.00 ms on a formula simplification. DAG size of input: 191 DAG size of output: 189 [2020-08-22 18:16:58,263 WARN L193 SmtUtils]: Spent 195.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-08-22 18:16:59,477 WARN L193 SmtUtils]: Spent 410.00 ms on a formula simplification. DAG size of input: 193 DAG size of output: 191 [2020-08-22 18:16:59,947 WARN L193 SmtUtils]: Spent 425.00 ms on a formula simplification. DAG size of input: 195 DAG size of output: 193 [2020-08-22 18:17:00,253 WARN L193 SmtUtils]: Spent 201.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-08-22 18:17:00,504 WARN L193 SmtUtils]: Spent 207.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-08-22 18:17:00,980 WARN L193 SmtUtils]: Spent 407.00 ms on a formula simplification. DAG size of input: 194 DAG size of output: 192 [2020-08-22 18:17:01,220 WARN L193 SmtUtils]: Spent 202.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-08-22 18:17:01,516 WARN L193 SmtUtils]: Spent 215.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-08-22 18:17:01,760 WARN L193 SmtUtils]: Spent 203.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-08-22 18:17:05,123 WARN L193 SmtUtils]: Spent 398.00 ms on a formula simplification. DAG size of input: 190 DAG size of output: 189 [2020-08-22 18:17:05,671 WARN L193 SmtUtils]: Spent 194.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-08-22 18:17:05,897 WARN L193 SmtUtils]: Spent 199.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-08-22 18:17:06,206 WARN L193 SmtUtils]: Spent 194.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-08-22 18:17:07,483 WARN L193 SmtUtils]: Spent 466.00 ms on a formula simplification. DAG size of input: 192 DAG size of output: 191 [2020-08-22 18:17:07,928 WARN L193 SmtUtils]: Spent 417.00 ms on a formula simplification. DAG size of input: 194 DAG size of output: 193 [2020-08-22 18:17:08,389 WARN L193 SmtUtils]: Spent 403.00 ms on a formula simplification. DAG size of input: 193 DAG size of output: 192 [2020-08-22 18:17:09,166 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-22 18:17:09,167 INFO L93 Difference]: Finished difference Result 4367 states and 5340 transitions. [2020-08-22 18:17:09,167 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 56 states. [2020-08-22 18:17:09,167 INFO L78 Accepts]: Start accepts. Automaton has 15 states. Word has length 239 [2020-08-22 18:17:09,168 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-22 18:17:09,187 INFO L225 Difference]: With dead ends: 4367 [2020-08-22 18:17:09,187 INFO L226 Difference]: Without dead ends: 3335 [2020-08-22 18:17:09,193 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 118 GetRequests, 55 SyntacticMatches, 0 SemanticMatches, 63 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1301 ImplicationChecksByTransitivity, 6.3s TimeCoverageRelationStatistics Valid=829, Invalid=3331, Unknown=0, NotChecked=0, Total=4160 [2020-08-22 18:17:09,197 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3335 states. [2020-08-22 18:17:10,367 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3335 to 2625. [2020-08-22 18:17:10,368 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2625 states. [2020-08-22 18:17:10,375 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2625 states to 2625 states and 2965 transitions. [2020-08-22 18:17:10,375 INFO L78 Accepts]: Start accepts. Automaton has 2625 states and 2965 transitions. Word has length 239 [2020-08-22 18:17:10,376 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-22 18:17:10,376 INFO L479 AbstractCegarLoop]: Abstraction has 2625 states and 2965 transitions. [2020-08-22 18:17:10,376 INFO L480 AbstractCegarLoop]: Interpolant automaton has 15 states. [2020-08-22 18:17:10,376 INFO L276 IsEmpty]: Start isEmpty. Operand 2625 states and 2965 transitions. [2020-08-22 18:17:10,382 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 326 [2020-08-22 18:17:10,383 INFO L414 BasicCegarLoop]: Found error trace [2020-08-22 18:17:10,383 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2020-08-22 18:17:10,383 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-08-22 18:17:10,384 INFO L427 AbstractCegarLoop]: === Iteration 9 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-22 18:17:10,384 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-22 18:17:10,384 INFO L82 PathProgramCache]: Analyzing trace with hash 1120150761, now seen corresponding path program 1 times [2020-08-22 18:17:10,384 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-22 18:17:10,385 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1470551703] [2020-08-22 18:17:10,385 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-22 18:17:10,432 INFO L288 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-08-22 18:17:10,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:17:10,774 WARN L193 SmtUtils]: Spent 232.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-08-22 18:17:10,775 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 18:17:10,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:17:10,806 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2020-08-22 18:17:10,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:17:10,808 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-08-22 18:17:10,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:17:10,809 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-08-22 18:17:10,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:17:10,846 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-08-22 18:17:10,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:17:10,865 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-08-22 18:17:10,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:17:10,884 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2020-08-22 18:17:10,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:17:10,904 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2020-08-22 18:17:10,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:17:10,935 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 138 [2020-08-22 18:17:10,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:17:10,974 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 18:17:10,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:17:10,977 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 18:17:10,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:17:11,000 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2020-08-22 18:17:11,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:17:11,024 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-22 18:17:11,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:17:11,036 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-22 18:17:11,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:17:11,040 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-22 18:17:11,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:17:11,043 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-08-22 18:17:11,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:17:11,048 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-22 18:17:11,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:17:11,054 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-22 18:17:11,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:17:11,056 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2020-08-22 18:17:11,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:17:11,068 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2020-08-22 18:17:11,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:17:11,073 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-22 18:17:11,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:17:11,090 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 244 [2020-08-22 18:17:11,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:17:11,093 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 249 [2020-08-22 18:17:11,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:17:11,174 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 18:17:11,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:17:11,290 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 262 [2020-08-22 18:17:11,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:17:11,293 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 268 [2020-08-22 18:17:11,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:17:11,299 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-22 18:17:11,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:17:11,301 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-22 18:17:11,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:17:11,303 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2020-08-22 18:17:11,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:17:11,305 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-22 18:17:11,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:17:11,307 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 302 [2020-08-22 18:17:11,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:17:11,309 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 312 [2020-08-22 18:17:11,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:17:11,484 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-08-22 18:17:11,485 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1470551703] [2020-08-22 18:17:11,485 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-22 18:17:11,486 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2020-08-22 18:17:11,486 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [233505276] [2020-08-22 18:17:11,487 INFO L459 AbstractCegarLoop]: Interpolant automaton has 19 states [2020-08-22 18:17:11,487 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-22 18:17:11,488 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2020-08-22 18:17:11,492 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=297, Unknown=0, NotChecked=0, Total=342 [2020-08-22 18:17:11,492 INFO L87 Difference]: Start difference. First operand 2625 states and 2965 transitions. Second operand 19 states. [2020-08-22 18:17:12,467 WARN L193 SmtUtils]: Spent 191.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-08-22 18:17:12,714 WARN L193 SmtUtils]: Spent 218.00 ms on a formula simplification that was a NOOP. DAG size: 194 [2020-08-22 18:17:12,949 WARN L193 SmtUtils]: Spent 194.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-08-22 18:17:13,183 WARN L193 SmtUtils]: Spent 200.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-08-22 18:17:13,406 WARN L193 SmtUtils]: Spent 195.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-08-22 18:17:14,411 WARN L193 SmtUtils]: Spent 258.00 ms on a formula simplification that was a NOOP. DAG size: 211 [2020-08-22 18:17:14,855 WARN L193 SmtUtils]: Spent 221.00 ms on a formula simplification that was a NOOP. DAG size: 197 [2020-08-22 18:17:15,095 WARN L193 SmtUtils]: Spent 207.00 ms on a formula simplification that was a NOOP. DAG size: 194 [2020-08-22 18:17:15,360 WARN L193 SmtUtils]: Spent 234.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2020-08-22 18:17:15,624 WARN L193 SmtUtils]: Spent 202.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-08-22 18:17:15,956 WARN L193 SmtUtils]: Spent 237.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2020-08-22 18:17:16,347 WARN L193 SmtUtils]: Spent 309.00 ms on a formula simplification that was a NOOP. DAG size: 207 [2020-08-22 18:17:16,662 WARN L193 SmtUtils]: Spent 216.00 ms on a formula simplification that was a NOOP. DAG size: 198 [2020-08-22 18:17:18,754 WARN L193 SmtUtils]: Spent 195.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-08-22 18:17:19,927 WARN L193 SmtUtils]: Spent 412.00 ms on a formula simplification. DAG size of input: 198 DAG size of output: 191 [2020-08-22 18:17:20,530 WARN L193 SmtUtils]: Spent 522.00 ms on a formula simplification. DAG size of input: 203 DAG size of output: 193 [2020-08-22 18:17:21,008 WARN L193 SmtUtils]: Spent 401.00 ms on a formula simplification. DAG size of input: 195 DAG size of output: 193 [2020-08-22 18:17:21,384 WARN L193 SmtUtils]: Spent 203.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-08-22 18:17:22,089 WARN L193 SmtUtils]: Spent 195.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-08-22 18:17:22,639 WARN L193 SmtUtils]: Spent 221.00 ms on a formula simplification that was a NOOP. DAG size: 199 [2020-08-22 18:17:22,939 WARN L193 SmtUtils]: Spent 241.00 ms on a formula simplification that was a NOOP. DAG size: 204 [2020-08-22 18:17:23,545 WARN L193 SmtUtils]: Spent 424.00 ms on a formula simplification. DAG size of input: 200 DAG size of output: 194 [2020-08-22 18:17:24,078 WARN L193 SmtUtils]: Spent 446.00 ms on a formula simplification. DAG size of input: 205 DAG size of output: 196 [2020-08-22 18:17:25,241 WARN L193 SmtUtils]: Spent 253.00 ms on a formula simplification that was a NOOP. DAG size: 209 [2020-08-22 18:17:25,784 WARN L193 SmtUtils]: Spent 208.00 ms on a formula simplification that was a NOOP. DAG size: 195 [2020-08-22 18:17:26,321 WARN L193 SmtUtils]: Spent 416.00 ms on a formula simplification. DAG size of input: 197 DAG size of output: 195 [2020-08-22 18:17:28,266 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-22 18:17:28,267 INFO L93 Difference]: Finished difference Result 5946 states and 6998 transitions. [2020-08-22 18:17:28,272 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 78 states. [2020-08-22 18:17:28,272 INFO L78 Accepts]: Start accepts. Automaton has 19 states. Word has length 325 [2020-08-22 18:17:28,273 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-22 18:17:28,292 INFO L225 Difference]: With dead ends: 5946 [2020-08-22 18:17:28,292 INFO L226 Difference]: Without dead ends: 3702 [2020-08-22 18:17:28,301 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 176 GetRequests, 88 SyntacticMatches, 0 SemanticMatches, 88 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2459 ImplicationChecksByTransitivity, 9.5s TimeCoverageRelationStatistics Valid=1409, Invalid=6601, Unknown=0, NotChecked=0, Total=8010 [2020-08-22 18:17:28,305 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3702 states. [2020-08-22 18:17:29,304 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3702 to 3051. [2020-08-22 18:17:29,304 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3051 states. [2020-08-22 18:17:29,312 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3051 states to 3051 states and 3394 transitions. [2020-08-22 18:17:29,313 INFO L78 Accepts]: Start accepts. Automaton has 3051 states and 3394 transitions. Word has length 325 [2020-08-22 18:17:29,314 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-22 18:17:29,314 INFO L479 AbstractCegarLoop]: Abstraction has 3051 states and 3394 transitions. [2020-08-22 18:17:29,314 INFO L480 AbstractCegarLoop]: Interpolant automaton has 19 states. [2020-08-22 18:17:29,314 INFO L276 IsEmpty]: Start isEmpty. Operand 3051 states and 3394 transitions. [2020-08-22 18:17:29,325 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 518 [2020-08-22 18:17:29,325 INFO L414 BasicCegarLoop]: Found error trace [2020-08-22 18:17:29,326 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2020-08-22 18:17:29,326 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-08-22 18:17:29,326 INFO L427 AbstractCegarLoop]: === Iteration 10 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-22 18:17:29,327 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-22 18:17:29,327 INFO L82 PathProgramCache]: Analyzing trace with hash -1262368258, now seen corresponding path program 1 times [2020-08-22 18:17:29,327 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-22 18:17:29,327 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1746900083] [2020-08-22 18:17:29,327 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-22 18:17:29,354 INFO L288 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-08-22 18:17:29,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:17:29,633 WARN L193 SmtUtils]: Spent 173.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-08-22 18:17:29,634 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 18:17:29,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:17:29,654 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2020-08-22 18:17:29,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:17:29,655 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-08-22 18:17:29,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:17:29,656 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-08-22 18:17:29,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:17:29,657 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-08-22 18:17:29,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:17:29,670 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-08-22 18:17:29,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:17:29,679 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2020-08-22 18:17:29,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:17:29,687 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2020-08-22 18:17:29,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:17:29,699 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 138 [2020-08-22 18:17:29,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:17:29,712 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 18:17:29,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:17:29,714 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 18:17:29,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:17:29,728 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2020-08-22 18:17:29,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:17:29,732 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-22 18:17:29,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:17:29,742 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-22 18:17:29,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:17:29,744 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-22 18:17:29,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:17:29,745 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-08-22 18:17:29,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:17:29,747 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-22 18:17:29,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:17:29,748 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-22 18:17:29,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:17:29,749 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2020-08-22 18:17:29,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:17:29,754 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2020-08-22 18:17:29,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:17:29,814 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-22 18:17:29,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:17:29,855 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 244 [2020-08-22 18:17:29,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:17:29,857 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 248 [2020-08-22 18:17:29,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:17:29,908 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 18:17:29,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:17:29,912 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 18:17:29,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:17:29,913 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2020-08-22 18:17:29,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:17:29,922 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2020-08-22 18:17:29,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:17:29,926 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-22 18:17:29,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:17:29,928 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-22 18:17:29,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:17:29,929 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2020-08-22 18:17:29,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:17:29,930 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-22 18:17:29,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:17:29,931 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2020-08-22 18:17:29,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:17:29,983 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-22 18:17:29,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:17:29,990 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 330 [2020-08-22 18:17:29,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:17:29,992 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 334 [2020-08-22 18:17:29,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:17:29,997 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 18:17:29,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:17:29,998 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 18:17:29,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:17:30,000 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2020-08-22 18:17:30,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:17:30,001 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2020-08-22 18:17:30,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:17:30,003 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-22 18:17:30,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:17:30,005 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-22 18:17:30,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:17:30,006 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2020-08-22 18:17:30,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:17:30,007 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2020-08-22 18:17:30,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:17:30,009 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-22 18:17:30,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:17:30,012 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 412 [2020-08-22 18:17:30,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:17:30,013 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 417 [2020-08-22 18:17:30,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:17:30,015 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 18:17:30,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:17:30,016 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 431 [2020-08-22 18:17:30,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:17:30,021 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-22 18:17:30,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:17:30,025 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-22 18:17:30,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:17:30,027 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-22 18:17:30,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:17:30,028 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-08-22 18:17:30,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:17:30,030 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-22 18:17:30,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:17:30,032 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-22 18:17:30,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:17:30,033 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2020-08-22 18:17:30,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:17:30,037 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 494 [2020-08-22 18:17:30,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:17:30,039 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 504 [2020-08-22 18:17:30,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:17:30,239 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-08-22 18:17:30,240 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1746900083] [2020-08-22 18:17:30,240 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-22 18:17:30,240 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2020-08-22 18:17:30,240 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1371199649] [2020-08-22 18:17:30,241 INFO L459 AbstractCegarLoop]: Interpolant automaton has 17 states [2020-08-22 18:17:30,241 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-22 18:17:30,241 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2020-08-22 18:17:30,242 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=227, Unknown=0, NotChecked=0, Total=272 [2020-08-22 18:17:30,242 INFO L87 Difference]: Start difference. First operand 3051 states and 3394 transitions. Second operand 17 states. [2020-08-22 18:17:31,830 WARN L193 SmtUtils]: Spent 203.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-08-22 18:17:32,075 WARN L193 SmtUtils]: Spent 215.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-08-22 18:17:32,330 WARN L193 SmtUtils]: Spent 199.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-08-22 18:17:32,689 WARN L193 SmtUtils]: Spent 312.00 ms on a formula simplification that was a NOOP. DAG size: 195 [2020-08-22 18:17:32,920 WARN L193 SmtUtils]: Spent 201.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-08-22 18:17:33,168 WARN L193 SmtUtils]: Spent 197.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-08-22 18:17:34,641 WARN L193 SmtUtils]: Spent 209.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-08-22 18:17:34,912 WARN L193 SmtUtils]: Spent 224.00 ms on a formula simplification that was a NOOP. DAG size: 195 [2020-08-22 18:17:39,011 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-22 18:17:39,011 INFO L93 Difference]: Finished difference Result 8768 states and 10283 transitions. [2020-08-22 18:17:39,012 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 40 states. [2020-08-22 18:17:39,012 INFO L78 Accepts]: Start accepts. Automaton has 17 states. Word has length 517 [2020-08-22 18:17:39,014 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-22 18:17:39,050 INFO L225 Difference]: With dead ends: 8768 [2020-08-22 18:17:39,050 INFO L226 Difference]: Without dead ends: 5317 [2020-08-22 18:17:39,067 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 180 GetRequests, 129 SyntacticMatches, 4 SemanticMatches, 47 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 576 ImplicationChecksByTransitivity, 2.6s TimeCoverageRelationStatistics Valid=521, Invalid=1831, Unknown=0, NotChecked=0, Total=2352 [2020-08-22 18:17:39,074 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5317 states. [2020-08-22 18:17:40,513 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5317 to 4152. [2020-08-22 18:17:40,513 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4152 states. [2020-08-22 18:17:40,521 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4152 states to 4152 states and 4701 transitions. [2020-08-22 18:17:40,523 INFO L78 Accepts]: Start accepts. Automaton has 4152 states and 4701 transitions. Word has length 517 [2020-08-22 18:17:40,526 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-22 18:17:40,526 INFO L479 AbstractCegarLoop]: Abstraction has 4152 states and 4701 transitions. [2020-08-22 18:17:40,526 INFO L480 AbstractCegarLoop]: Interpolant automaton has 17 states. [2020-08-22 18:17:40,526 INFO L276 IsEmpty]: Start isEmpty. Operand 4152 states and 4701 transitions. [2020-08-22 18:17:40,540 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 528 [2020-08-22 18:17:40,541 INFO L414 BasicCegarLoop]: Found error trace [2020-08-22 18:17:40,541 INFO L422 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2020-08-22 18:17:40,541 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-08-22 18:17:40,542 INFO L427 AbstractCegarLoop]: === Iteration 11 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-22 18:17:40,542 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-22 18:17:40,542 INFO L82 PathProgramCache]: Analyzing trace with hash -323355931, now seen corresponding path program 1 times [2020-08-22 18:17:40,542 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-22 18:17:40,542 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [568143629] [2020-08-22 18:17:40,543 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-22 18:17:40,567 INFO L288 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-08-22 18:17:40,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:17:40,868 WARN L193 SmtUtils]: Spent 187.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-08-22 18:17:40,869 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 18:17:40,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:17:40,889 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2020-08-22 18:17:40,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:17:40,890 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-08-22 18:17:40,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:17:40,891 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-08-22 18:17:40,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:17:40,936 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-08-22 18:17:40,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:17:40,950 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-08-22 18:17:40,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:17:40,963 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2020-08-22 18:17:40,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:17:40,977 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2020-08-22 18:17:40,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:17:40,995 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 138 [2020-08-22 18:17:40,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:17:41,017 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 18:17:41,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:17:41,019 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 18:17:41,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:17:41,035 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2020-08-22 18:17:41,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:17:41,041 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-22 18:17:41,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:17:41,047 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-22 18:17:41,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:17:41,049 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-22 18:17:41,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:17:41,050 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-08-22 18:17:41,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:17:41,053 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-22 18:17:41,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:17:41,055 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-22 18:17:41,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:17:41,056 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2020-08-22 18:17:41,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:17:41,061 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2020-08-22 18:17:41,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:17:41,064 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-22 18:17:41,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:17:41,071 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 244 [2020-08-22 18:17:41,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:17:41,073 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 248 [2020-08-22 18:17:41,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:17:41,081 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 18:17:41,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:17:41,083 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 18:17:41,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:17:41,084 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2020-08-22 18:17:41,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:17:41,086 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2020-08-22 18:17:41,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:17:41,089 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-22 18:17:41,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:17:41,090 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-22 18:17:41,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:17:41,092 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2020-08-22 18:17:41,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:17:41,094 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-22 18:17:41,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:17:41,096 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2020-08-22 18:17:41,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:17:41,140 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-22 18:17:41,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:17:41,141 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-08-22 18:17:41,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:17:41,181 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 340 [2020-08-22 18:17:41,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:17:41,184 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 344 [2020-08-22 18:17:41,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:17:41,189 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 18:17:41,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:17:41,190 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 18:17:41,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:17:41,192 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2020-08-22 18:17:41,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:17:41,193 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2020-08-22 18:17:41,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:17:41,195 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-22 18:17:41,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:17:41,196 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-22 18:17:41,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:17:41,198 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2020-08-22 18:17:41,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:17:41,199 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2020-08-22 18:17:41,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:17:41,200 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-22 18:17:41,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:17:41,203 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 422 [2020-08-22 18:17:41,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:17:41,204 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 427 [2020-08-22 18:17:41,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:17:41,205 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 18:17:41,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:17:41,206 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 441 [2020-08-22 18:17:41,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:17:41,211 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-22 18:17:41,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:17:41,215 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-22 18:17:41,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:17:41,216 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-22 18:17:41,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:17:41,218 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-08-22 18:17:41,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:17:41,220 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-22 18:17:41,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:17:41,222 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-22 18:17:41,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:17:41,223 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2020-08-22 18:17:41,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:17:41,227 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 504 [2020-08-22 18:17:41,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:17:41,228 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 514 [2020-08-22 18:17:41,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:17:41,372 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2020-08-22 18:17:41,372 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [568143629] [2020-08-22 18:17:41,372 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-22 18:17:41,372 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2020-08-22 18:17:41,372 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1508142906] [2020-08-22 18:17:41,373 INFO L459 AbstractCegarLoop]: Interpolant automaton has 19 states [2020-08-22 18:17:41,374 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-22 18:17:41,374 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2020-08-22 18:17:41,375 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=44, Invalid=298, Unknown=0, NotChecked=0, Total=342 [2020-08-22 18:17:41,375 INFO L87 Difference]: Start difference. First operand 4152 states and 4701 transitions. Second operand 19 states. [2020-08-22 18:17:41,878 WARN L193 SmtUtils]: Spent 197.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-08-22 18:17:42,223 WARN L193 SmtUtils]: Spent 208.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-08-22 18:17:42,472 WARN L193 SmtUtils]: Spent 218.00 ms on a formula simplification that was a NOOP. DAG size: 196 [2020-08-22 18:17:42,718 WARN L193 SmtUtils]: Spent 202.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-08-22 18:17:42,961 WARN L193 SmtUtils]: Spent 207.00 ms on a formula simplification that was a NOOP. DAG size: 194 [2020-08-22 18:17:43,192 WARN L193 SmtUtils]: Spent 202.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-08-22 18:17:44,183 WARN L193 SmtUtils]: Spent 201.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-08-22 18:17:44,436 WARN L193 SmtUtils]: Spent 212.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-08-22 18:17:46,344 WARN L193 SmtUtils]: Spent 313.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-08-22 18:17:46,798 WARN L193 SmtUtils]: Spent 314.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-08-22 18:17:47,246 WARN L193 SmtUtils]: Spent 312.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-08-22 18:17:47,924 WARN L193 SmtUtils]: Spent 304.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-08-22 18:17:49,343 WARN L193 SmtUtils]: Spent 308.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-08-22 18:17:49,741 WARN L193 SmtUtils]: Spent 328.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-08-22 18:17:50,964 WARN L193 SmtUtils]: Spent 194.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-08-22 18:17:51,225 WARN L193 SmtUtils]: Spent 208.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-08-22 18:17:51,464 WARN L193 SmtUtils]: Spent 204.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-08-22 18:17:53,475 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-22 18:17:53,475 INFO L93 Difference]: Finished difference Result 8388 states and 9772 transitions. [2020-08-22 18:17:53,475 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 44 states. [2020-08-22 18:17:53,475 INFO L78 Accepts]: Start accepts. Automaton has 19 states. Word has length 527 [2020-08-22 18:17:53,476 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-22 18:17:53,500 INFO L225 Difference]: With dead ends: 8388 [2020-08-22 18:17:53,500 INFO L226 Difference]: Without dead ends: 4653 [2020-08-22 18:17:53,513 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 194 GetRequests, 138 SyntacticMatches, 0 SemanticMatches, 56 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 838 ImplicationChecksByTransitivity, 5.4s TimeCoverageRelationStatistics Valid=645, Invalid=2661, Unknown=0, NotChecked=0, Total=3306 [2020-08-22 18:17:53,519 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4653 states. [2020-08-22 18:17:54,998 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4653 to 4053. [2020-08-22 18:17:54,998 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4053 states. [2020-08-22 18:17:55,004 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4053 states to 4053 states and 4560 transitions. [2020-08-22 18:17:55,005 INFO L78 Accepts]: Start accepts. Automaton has 4053 states and 4560 transitions. Word has length 527 [2020-08-22 18:17:55,006 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-22 18:17:55,006 INFO L479 AbstractCegarLoop]: Abstraction has 4053 states and 4560 transitions. [2020-08-22 18:17:55,006 INFO L480 AbstractCegarLoop]: Interpolant automaton has 19 states. [2020-08-22 18:17:55,006 INFO L276 IsEmpty]: Start isEmpty. Operand 4053 states and 4560 transitions. [2020-08-22 18:17:55,019 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 533 [2020-08-22 18:17:55,019 INFO L414 BasicCegarLoop]: Found error trace [2020-08-22 18:17:55,020 INFO L422 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2020-08-22 18:17:55,020 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-08-22 18:17:55,020 INFO L427 AbstractCegarLoop]: === Iteration 12 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-22 18:17:55,020 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-22 18:17:55,021 INFO L82 PathProgramCache]: Analyzing trace with hash 488577479, now seen corresponding path program 1 times [2020-08-22 18:17:55,021 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-22 18:17:55,021 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2081201528] [2020-08-22 18:17:55,021 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-22 18:17:55,048 INFO L288 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-08-22 18:17:55,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:17:55,333 WARN L193 SmtUtils]: Spent 186.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-08-22 18:17:55,334 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 18:17:55,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:17:55,361 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2020-08-22 18:17:55,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:17:55,363 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-08-22 18:17:55,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:17:55,364 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-08-22 18:17:55,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:17:55,365 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-08-22 18:17:55,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:17:55,372 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-08-22 18:17:55,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:17:55,380 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2020-08-22 18:17:55,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:17:55,389 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2020-08-22 18:17:55,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:17:55,402 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 138 [2020-08-22 18:17:55,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:17:55,409 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 18:17:55,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:17:55,410 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 18:17:55,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:17:55,425 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2020-08-22 18:17:55,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:17:55,430 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-22 18:17:55,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:17:55,433 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-22 18:17:55,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:17:55,435 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-22 18:17:55,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:17:55,437 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-08-22 18:17:55,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:17:55,439 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-22 18:17:55,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:17:55,441 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-22 18:17:55,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:17:55,442 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2020-08-22 18:17:55,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:17:55,446 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2020-08-22 18:17:55,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:17:55,448 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-22 18:17:55,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:17:55,454 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 244 [2020-08-22 18:17:55,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:17:55,455 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 248 [2020-08-22 18:17:55,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:17:55,461 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 18:17:55,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:17:55,463 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 18:17:55,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:17:55,464 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2020-08-22 18:17:55,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:17:55,465 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2020-08-22 18:17:55,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:17:55,467 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-22 18:17:55,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:17:55,468 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-22 18:17:55,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:17:55,469 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2020-08-22 18:17:55,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:17:55,470 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-22 18:17:55,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:17:55,471 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2020-08-22 18:17:55,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:17:55,473 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-22 18:17:55,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:17:55,474 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-08-22 18:17:55,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:17:55,478 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 341 [2020-08-22 18:17:55,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:17:55,479 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 345 [2020-08-22 18:17:55,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:17:55,494 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 18:17:55,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:17:55,496 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 18:17:55,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:17:55,497 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2020-08-22 18:17:55,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:17:55,498 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2020-08-22 18:17:55,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:17:55,560 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-22 18:17:55,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:17:55,613 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-22 18:17:55,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:17:55,657 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2020-08-22 18:17:55,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:17:55,660 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2020-08-22 18:17:55,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:17:55,663 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-22 18:17:55,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:17:55,667 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 415 [2020-08-22 18:17:55,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:17:55,669 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 427 [2020-08-22 18:17:55,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:17:55,670 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 432 [2020-08-22 18:17:55,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:17:55,671 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 18:17:55,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:17:55,673 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 446 [2020-08-22 18:17:55,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:17:55,677 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-22 18:17:55,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:17:55,681 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-22 18:17:55,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:17:55,683 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-22 18:17:55,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:17:55,684 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-08-22 18:17:55,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:17:55,686 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-22 18:17:55,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:17:55,687 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-22 18:17:55,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:17:55,688 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2020-08-22 18:17:55,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:17:55,693 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 509 [2020-08-22 18:17:55,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:17:55,694 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 519 [2020-08-22 18:17:55,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:17:55,822 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2020-08-22 18:17:55,823 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2081201528] [2020-08-22 18:17:55,823 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-22 18:17:55,823 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2020-08-22 18:17:55,823 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1526546706] [2020-08-22 18:17:55,824 INFO L459 AbstractCegarLoop]: Interpolant automaton has 17 states [2020-08-22 18:17:55,824 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-22 18:17:55,825 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2020-08-22 18:17:55,825 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=233, Unknown=0, NotChecked=0, Total=272 [2020-08-22 18:17:55,825 INFO L87 Difference]: Start difference. First operand 4053 states and 4560 transitions. Second operand 17 states. [2020-08-22 18:17:56,389 WARN L193 SmtUtils]: Spent 218.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-08-22 18:17:58,016 WARN L193 SmtUtils]: Spent 216.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-08-22 18:18:00,564 WARN L193 SmtUtils]: Spent 235.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-08-22 18:18:00,884 WARN L193 SmtUtils]: Spent 243.00 ms on a formula simplification that was a NOOP. DAG size: 195 [2020-08-22 18:18:01,233 WARN L193 SmtUtils]: Spent 229.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-08-22 18:18:01,570 WARN L193 SmtUtils]: Spent 238.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-08-22 18:18:01,850 WARN L193 SmtUtils]: Spent 245.00 ms on a formula simplification that was a NOOP. DAG size: 195 [2020-08-22 18:18:02,133 WARN L193 SmtUtils]: Spent 248.00 ms on a formula simplification that was a NOOP. DAG size: 196 [2020-08-22 18:18:02,393 WARN L193 SmtUtils]: Spent 227.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-08-22 18:18:02,680 WARN L193 SmtUtils]: Spent 242.00 ms on a formula simplification that was a NOOP. DAG size: 195 [2020-08-22 18:18:02,962 WARN L193 SmtUtils]: Spent 237.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-08-22 18:18:03,298 WARN L193 SmtUtils]: Spent 252.00 ms on a formula simplification that was a NOOP. DAG size: 196 [2020-08-22 18:18:03,571 WARN L193 SmtUtils]: Spent 230.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-08-22 18:18:03,865 WARN L193 SmtUtils]: Spent 248.00 ms on a formula simplification that was a NOOP. DAG size: 196 [2020-08-22 18:18:06,240 WARN L193 SmtUtils]: Spent 211.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-08-22 18:18:06,735 WARN L193 SmtUtils]: Spent 455.00 ms on a formula simplification. DAG size of input: 201 DAG size of output: 197 [2020-08-22 18:18:07,198 WARN L193 SmtUtils]: Spent 426.00 ms on a formula simplification. DAG size of input: 198 DAG size of output: 194 [2020-08-22 18:18:07,465 WARN L193 SmtUtils]: Spent 214.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-08-22 18:18:07,768 WARN L193 SmtUtils]: Spent 256.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2020-08-22 18:18:08,041 WARN L193 SmtUtils]: Spent 233.00 ms on a formula simplification that was a NOOP. DAG size: 199 [2020-08-22 18:18:11,204 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-22 18:18:11,205 INFO L93 Difference]: Finished difference Result 12550 states and 14704 transitions. [2020-08-22 18:18:11,208 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 55 states. [2020-08-22 18:18:11,208 INFO L78 Accepts]: Start accepts. Automaton has 17 states. Word has length 532 [2020-08-22 18:18:11,209 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-22 18:18:11,256 INFO L225 Difference]: With dead ends: 12550 [2020-08-22 18:18:11,257 INFO L226 Difference]: Without dead ends: 8625 [2020-08-22 18:18:11,273 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 197 GetRequests, 132 SyntacticMatches, 1 SemanticMatches, 64 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1207 ImplicationChecksByTransitivity, 6.5s TimeCoverageRelationStatistics Valid=843, Invalid=3447, Unknown=0, NotChecked=0, Total=4290 [2020-08-22 18:18:11,283 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8625 states. [2020-08-22 18:18:13,699 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8625 to 7511. [2020-08-22 18:18:13,699 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7511 states. [2020-08-22 18:18:13,711 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7511 states to 7511 states and 8356 transitions. [2020-08-22 18:18:13,713 INFO L78 Accepts]: Start accepts. Automaton has 7511 states and 8356 transitions. Word has length 532 [2020-08-22 18:18:13,714 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-22 18:18:13,714 INFO L479 AbstractCegarLoop]: Abstraction has 7511 states and 8356 transitions. [2020-08-22 18:18:13,714 INFO L480 AbstractCegarLoop]: Interpolant automaton has 17 states. [2020-08-22 18:18:13,714 INFO L276 IsEmpty]: Start isEmpty. Operand 7511 states and 8356 transitions. [2020-08-22 18:18:13,728 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 538 [2020-08-22 18:18:13,728 INFO L414 BasicCegarLoop]: Found error trace [2020-08-22 18:18:13,728 INFO L422 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2020-08-22 18:18:13,729 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2020-08-22 18:18:13,729 INFO L427 AbstractCegarLoop]: === Iteration 13 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-22 18:18:13,729 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-22 18:18:13,729 INFO L82 PathProgramCache]: Analyzing trace with hash 632216575, now seen corresponding path program 1 times [2020-08-22 18:18:13,729 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-22 18:18:13,729 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1618034279] [2020-08-22 18:18:13,730 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-22 18:18:13,747 INFO L288 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-08-22 18:18:13,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:18:14,045 WARN L193 SmtUtils]: Spent 196.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-08-22 18:18:14,046 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 18:18:14,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:18:14,082 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2020-08-22 18:18:14,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:18:14,083 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-08-22 18:18:14,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:18:14,083 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-08-22 18:18:14,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:18:14,109 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-08-22 18:18:14,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:18:14,120 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-08-22 18:18:14,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:18:14,131 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2020-08-22 18:18:14,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:18:14,144 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2020-08-22 18:18:14,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:18:14,176 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2020-08-22 18:18:14,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:18:14,197 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2020-08-22 18:18:14,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:18:14,222 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 18:18:14,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:18:14,224 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 18:18:14,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:18:14,246 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2020-08-22 18:18:14,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:18:14,269 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-22 18:18:14,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:18:14,306 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-22 18:18:14,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:18:14,308 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-22 18:18:14,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:18:14,310 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-08-22 18:18:14,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:18:14,541 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-22 18:18:14,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:18:14,614 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-22 18:18:14,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:18:14,671 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2020-08-22 18:18:14,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:18:14,682 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2020-08-22 18:18:14,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:18:14,694 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-22 18:18:14,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:18:14,703 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 249 [2020-08-22 18:18:14,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:18:14,707 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 253 [2020-08-22 18:18:14,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:18:14,713 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 18:18:14,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:18:14,714 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 18:18:14,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:18:14,717 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2020-08-22 18:18:14,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:18:14,718 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2020-08-22 18:18:14,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:18:14,720 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-22 18:18:14,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:18:14,727 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-22 18:18:14,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:18:14,729 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2020-08-22 18:18:14,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:18:14,730 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-22 18:18:14,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:18:14,731 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2020-08-22 18:18:14,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:18:14,736 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-22 18:18:14,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:18:14,737 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-08-22 18:18:14,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:18:14,740 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 346 [2020-08-22 18:18:14,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:18:14,741 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 350 [2020-08-22 18:18:14,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:18:14,745 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 18:18:14,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:18:14,746 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 18:18:14,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:18:14,747 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2020-08-22 18:18:14,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:18:14,748 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2020-08-22 18:18:14,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:18:14,750 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-22 18:18:14,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:18:14,752 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-22 18:18:14,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:18:14,753 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2020-08-22 18:18:14,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:18:14,755 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2020-08-22 18:18:14,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:18:14,756 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-22 18:18:14,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:18:14,759 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 420 [2020-08-22 18:18:14,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:18:14,761 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 432 [2020-08-22 18:18:14,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:18:14,762 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 437 [2020-08-22 18:18:14,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:18:14,763 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 18:18:14,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:18:14,764 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 451 [2020-08-22 18:18:14,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:18:14,770 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-22 18:18:14,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:18:14,773 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-22 18:18:14,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:18:14,775 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-22 18:18:14,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:18:14,776 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-08-22 18:18:14,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:18:14,778 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-22 18:18:14,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:18:14,779 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-22 18:18:14,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:18:14,780 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2020-08-22 18:18:14,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:18:14,785 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 514 [2020-08-22 18:18:14,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:18:14,786 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 524 [2020-08-22 18:18:14,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:18:14,942 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2020-08-22 18:18:14,942 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1618034279] [2020-08-22 18:18:14,942 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-22 18:18:14,942 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [23] imperfect sequences [] total 23 [2020-08-22 18:18:14,942 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1222005466] [2020-08-22 18:18:14,943 INFO L459 AbstractCegarLoop]: Interpolant automaton has 23 states [2020-08-22 18:18:14,943 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-22 18:18:14,944 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2020-08-22 18:18:14,944 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=55, Invalid=451, Unknown=0, NotChecked=0, Total=506 [2020-08-22 18:18:14,944 INFO L87 Difference]: Start difference. First operand 7511 states and 8356 transitions. Second operand 23 states. [2020-08-22 18:18:15,492 WARN L193 SmtUtils]: Spent 196.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-08-22 18:18:15,858 WARN L193 SmtUtils]: Spent 212.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-08-22 18:18:16,131 WARN L193 SmtUtils]: Spent 241.00 ms on a formula simplification that was a NOOP. DAG size: 196 [2020-08-22 18:18:16,397 WARN L193 SmtUtils]: Spent 211.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-08-22 18:18:16,671 WARN L193 SmtUtils]: Spent 230.00 ms on a formula simplification that was a NOOP. DAG size: 194 [2020-08-22 18:18:16,926 WARN L193 SmtUtils]: Spent 220.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-08-22 18:18:17,917 WARN L193 SmtUtils]: Spent 209.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-08-22 18:18:20,596 WARN L193 SmtUtils]: Spent 214.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-08-22 18:18:20,896 WARN L193 SmtUtils]: Spent 224.00 ms on a formula simplification that was a NOOP. DAG size: 195 [2020-08-22 18:18:21,239 WARN L193 SmtUtils]: Spent 219.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-08-22 18:18:21,577 WARN L193 SmtUtils]: Spent 220.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-08-22 18:18:21,895 WARN L193 SmtUtils]: Spent 280.00 ms on a formula simplification that was a NOOP. DAG size: 195 [2020-08-22 18:18:22,410 WARN L193 SmtUtils]: Spent 449.00 ms on a formula simplification that was a NOOP. DAG size: 195 [2020-08-22 18:18:22,684 WARN L193 SmtUtils]: Spent 231.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-08-22 18:18:22,976 WARN L193 SmtUtils]: Spent 240.00 ms on a formula simplification that was a NOOP. DAG size: 195 [2020-08-22 18:18:23,265 WARN L193 SmtUtils]: Spent 231.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-08-22 18:18:23,605 WARN L193 SmtUtils]: Spent 234.00 ms on a formula simplification that was a NOOP. DAG size: 195 [2020-08-22 18:18:23,870 WARN L193 SmtUtils]: Spent 211.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-08-22 18:18:24,147 WARN L193 SmtUtils]: Spent 226.00 ms on a formula simplification that was a NOOP. DAG size: 195 [2020-08-22 18:18:24,653 WARN L193 SmtUtils]: Spent 404.00 ms on a formula simplification. DAG size of input: 198 DAG size of output: 191 [2020-08-22 18:18:25,245 WARN L193 SmtUtils]: Spent 433.00 ms on a formula simplification. DAG size of input: 203 DAG size of output: 193 [2020-08-22 18:18:25,718 WARN L193 SmtUtils]: Spent 414.00 ms on a formula simplification. DAG size of input: 198 DAG size of output: 191 [2020-08-22 18:18:31,797 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-22 18:18:31,797 INFO L93 Difference]: Finished difference Result 16157 states and 18787 transitions. [2020-08-22 18:18:31,798 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 67 states. [2020-08-22 18:18:31,798 INFO L78 Accepts]: Start accepts. Automaton has 23 states. Word has length 537 [2020-08-22 18:18:31,799 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-22 18:18:31,838 INFO L225 Difference]: With dead ends: 16157 [2020-08-22 18:18:31,838 INFO L226 Difference]: Without dead ends: 9342 [2020-08-22 18:18:31,859 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 228 GetRequests, 142 SyntacticMatches, 3 SemanticMatches, 83 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2149 ImplicationChecksByTransitivity, 7.9s TimeCoverageRelationStatistics Valid=1297, Invalid=5843, Unknown=0, NotChecked=0, Total=7140 [2020-08-22 18:18:31,870 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9342 states. [2020-08-22 18:18:34,243 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9342 to 7153. [2020-08-22 18:18:34,243 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7153 states. [2020-08-22 18:18:34,254 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7153 states to 7153 states and 7913 transitions. [2020-08-22 18:18:34,257 INFO L78 Accepts]: Start accepts. Automaton has 7153 states and 7913 transitions. Word has length 537 [2020-08-22 18:18:34,258 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-22 18:18:34,258 INFO L479 AbstractCegarLoop]: Abstraction has 7153 states and 7913 transitions. [2020-08-22 18:18:34,258 INFO L480 AbstractCegarLoop]: Interpolant automaton has 23 states. [2020-08-22 18:18:34,258 INFO L276 IsEmpty]: Start isEmpty. Operand 7153 states and 7913 transitions. [2020-08-22 18:18:34,277 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 596 [2020-08-22 18:18:34,277 INFO L414 BasicCegarLoop]: Found error trace [2020-08-22 18:18:34,278 INFO L422 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2020-08-22 18:18:34,278 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2020-08-22 18:18:34,278 INFO L427 AbstractCegarLoop]: === Iteration 14 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-22 18:18:34,278 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-22 18:18:34,279 INFO L82 PathProgramCache]: Analyzing trace with hash 623386669, now seen corresponding path program 1 times [2020-08-22 18:18:34,279 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-22 18:18:34,279 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [244428965] [2020-08-22 18:18:34,279 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-22 18:18:34,297 INFO L288 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-08-22 18:18:34,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:18:34,593 WARN L193 SmtUtils]: Spent 186.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-08-22 18:18:34,594 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 18:18:34,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:18:34,613 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2020-08-22 18:18:34,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:18:34,614 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-08-22 18:18:34,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:18:34,615 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-08-22 18:18:34,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:18:34,616 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-08-22 18:18:34,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:18:34,629 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-08-22 18:18:34,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:18:34,638 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2020-08-22 18:18:34,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:18:34,649 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2020-08-22 18:18:34,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:18:34,665 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 138 [2020-08-22 18:18:34,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:18:34,678 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 18:18:34,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:18:34,679 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 18:18:34,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:18:34,691 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2020-08-22 18:18:34,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:18:34,695 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-22 18:18:34,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:18:34,699 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-22 18:18:34,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:18:34,701 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-22 18:18:34,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:18:34,703 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-08-22 18:18:34,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:18:34,704 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-22 18:18:34,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:18:34,706 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-22 18:18:34,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:18:34,707 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2020-08-22 18:18:34,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:18:34,711 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2020-08-22 18:18:34,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:18:34,781 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-22 18:18:34,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:18:34,824 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 244 [2020-08-22 18:18:34,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:18:34,826 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 248 [2020-08-22 18:18:34,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:18:34,862 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 18:18:34,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:18:34,865 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 18:18:34,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:18:34,866 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2020-08-22 18:18:34,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:18:34,877 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2020-08-22 18:18:34,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:18:34,881 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-22 18:18:34,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:18:34,882 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-22 18:18:34,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:18:34,883 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2020-08-22 18:18:34,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:18:34,884 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-22 18:18:34,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:18:34,885 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2020-08-22 18:18:34,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:18:34,888 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-22 18:18:34,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:18:34,889 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-08-22 18:18:34,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:18:34,894 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 341 [2020-08-22 18:18:34,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:18:34,895 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 345 [2020-08-22 18:18:34,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:18:34,925 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 18:18:34,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:18:34,927 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 18:18:34,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:18:34,928 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2020-08-22 18:18:34,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:18:34,938 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2020-08-22 18:18:34,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:18:34,942 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-22 18:18:34,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:18:34,943 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-22 18:18:34,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:18:34,944 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2020-08-22 18:18:34,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:18:34,945 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-22 18:18:34,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:18:34,947 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2020-08-22 18:18:34,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:18:35,005 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-22 18:18:35,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:18:35,012 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 419 [2020-08-22 18:18:35,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:18:35,032 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 435 [2020-08-22 18:18:35,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:18:35,035 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-22 18:18:35,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:18:35,036 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 444 [2020-08-22 18:18:35,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:18:35,039 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 18:18:35,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:18:35,040 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 18:18:35,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:18:35,042 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2020-08-22 18:18:35,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:18:35,043 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-22 18:18:35,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:18:35,045 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 490 [2020-08-22 18:18:35,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:18:35,047 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 495 [2020-08-22 18:18:35,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:18:35,049 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 18:18:35,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:18:35,050 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 509 [2020-08-22 18:18:35,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:18:35,055 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-22 18:18:35,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:18:35,059 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-22 18:18:35,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:18:35,061 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-22 18:18:35,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:18:35,062 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-08-22 18:18:35,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:18:35,064 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-22 18:18:35,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:18:35,066 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-22 18:18:35,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:18:35,067 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2020-08-22 18:18:35,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:18:35,071 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 572 [2020-08-22 18:18:35,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:18:35,072 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 582 [2020-08-22 18:18:35,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:18:35,461 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2020-08-22 18:18:35,462 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [244428965] [2020-08-22 18:18:35,462 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-22 18:18:35,462 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2020-08-22 18:18:35,462 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [75417062] [2020-08-22 18:18:35,463 INFO L459 AbstractCegarLoop]: Interpolant automaton has 19 states [2020-08-22 18:18:35,463 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-22 18:18:35,463 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2020-08-22 18:18:35,464 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=52, Invalid=290, Unknown=0, NotChecked=0, Total=342 [2020-08-22 18:18:35,464 INFO L87 Difference]: Start difference. First operand 7153 states and 7913 transitions. Second operand 19 states. [2020-08-22 18:18:35,968 WARN L193 SmtUtils]: Spent 200.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-08-22 18:18:37,515 WARN L193 SmtUtils]: Spent 225.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-08-22 18:18:37,796 WARN L193 SmtUtils]: Spent 233.00 ms on a formula simplification that was a NOOP. DAG size: 195 [2020-08-22 18:18:38,302 WARN L193 SmtUtils]: Spent 426.00 ms on a formula simplification. DAG size of input: 194 DAG size of output: 191 [2020-08-22 18:18:38,572 WARN L193 SmtUtils]: Spent 211.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-08-22 18:18:39,027 WARN L193 SmtUtils]: Spent 421.00 ms on a formula simplification. DAG size of input: 197 DAG size of output: 193 [2020-08-22 18:18:39,279 WARN L193 SmtUtils]: Spent 221.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-08-22 18:18:39,721 WARN L193 SmtUtils]: Spent 407.00 ms on a formula simplification. DAG size of input: 194 DAG size of output: 191 [2020-08-22 18:18:40,010 WARN L193 SmtUtils]: Spent 203.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-08-22 18:18:40,300 WARN L193 SmtUtils]: Spent 219.00 ms on a formula simplification that was a NOOP. DAG size: 195 [2020-08-22 18:18:40,554 WARN L193 SmtUtils]: Spent 210.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-08-22 18:18:40,804 WARN L193 SmtUtils]: Spent 198.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-08-22 18:18:42,403 WARN L193 SmtUtils]: Spent 221.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-08-22 18:18:42,808 WARN L193 SmtUtils]: Spent 354.00 ms on a formula simplification that was a NOOP. DAG size: 195 [2020-08-22 18:18:48,934 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-22 18:18:48,934 INFO L93 Difference]: Finished difference Result 15137 states and 17454 transitions. [2020-08-22 18:18:48,935 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 56 states. [2020-08-22 18:18:48,935 INFO L78 Accepts]: Start accepts. Automaton has 19 states. Word has length 595 [2020-08-22 18:18:48,935 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-22 18:18:48,981 INFO L225 Difference]: With dead ends: 15137 [2020-08-22 18:18:48,982 INFO L226 Difference]: Without dead ends: 10872 [2020-08-22 18:18:48,997 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 222 GetRequests, 152 SyntacticMatches, 6 SemanticMatches, 64 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1186 ImplicationChecksByTransitivity, 5.0s TimeCoverageRelationStatistics Valid=793, Invalid=3497, Unknown=0, NotChecked=0, Total=4290 [2020-08-22 18:18:49,009 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10872 states. [2020-08-22 18:18:51,869 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10872 to 8801. [2020-08-22 18:18:51,869 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8801 states. [2020-08-22 18:18:51,884 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8801 states to 8801 states and 9707 transitions. [2020-08-22 18:18:51,887 INFO L78 Accepts]: Start accepts. Automaton has 8801 states and 9707 transitions. Word has length 595 [2020-08-22 18:18:51,888 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-22 18:18:51,888 INFO L479 AbstractCegarLoop]: Abstraction has 8801 states and 9707 transitions. [2020-08-22 18:18:51,888 INFO L480 AbstractCegarLoop]: Interpolant automaton has 19 states. [2020-08-22 18:18:51,888 INFO L276 IsEmpty]: Start isEmpty. Operand 8801 states and 9707 transitions. [2020-08-22 18:18:51,904 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 554 [2020-08-22 18:18:51,904 INFO L414 BasicCegarLoop]: Found error trace [2020-08-22 18:18:51,905 INFO L422 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2020-08-22 18:18:51,905 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2020-08-22 18:18:51,905 INFO L427 AbstractCegarLoop]: === Iteration 15 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-22 18:18:51,905 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-22 18:18:51,905 INFO L82 PathProgramCache]: Analyzing trace with hash -1785183203, now seen corresponding path program 1 times [2020-08-22 18:18:51,906 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-22 18:18:51,906 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2048443452] [2020-08-22 18:18:51,906 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-22 18:18:51,919 INFO L288 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-08-22 18:18:51,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:18:52,213 WARN L193 SmtUtils]: Spent 186.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-08-22 18:18:52,214 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 18:18:52,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:18:52,233 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2020-08-22 18:18:52,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:18:52,234 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-08-22 18:18:52,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:18:52,235 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-08-22 18:18:52,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:18:52,259 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-08-22 18:18:52,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:18:52,268 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-08-22 18:18:52,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:18:52,290 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2020-08-22 18:18:52,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:18:52,309 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2020-08-22 18:18:52,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:18:52,327 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 138 [2020-08-22 18:18:52,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:18:52,332 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 18:18:52,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:18:52,333 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 18:18:52,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:18:52,346 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2020-08-22 18:18:52,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:18:52,350 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-22 18:18:52,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:18:52,352 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-22 18:18:52,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:18:52,354 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-22 18:18:52,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:18:52,355 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-08-22 18:18:52,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:18:52,358 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-22 18:18:52,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:18:52,359 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-22 18:18:52,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:18:52,360 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2020-08-22 18:18:52,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:18:52,366 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2020-08-22 18:18:52,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:18:52,367 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-22 18:18:52,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:18:52,397 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 240 [2020-08-22 18:18:52,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:18:52,417 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 249 [2020-08-22 18:18:52,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:18:52,419 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 253 [2020-08-22 18:18:52,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:18:52,441 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 18:18:52,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:18:52,443 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 18:18:52,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:18:52,443 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2020-08-22 18:18:52,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:18:52,444 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2020-08-22 18:18:52,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:18:52,536 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-22 18:18:52,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:18:52,610 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-22 18:18:52,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:18:52,664 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2020-08-22 18:18:52,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:18:52,666 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-22 18:18:52,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:18:52,668 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2020-08-22 18:18:52,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:18:52,671 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-22 18:18:52,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:18:52,672 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-08-22 18:18:52,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:18:52,678 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 346 [2020-08-22 18:18:52,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:18:52,679 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 350 [2020-08-22 18:18:52,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:18:52,684 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 18:18:52,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:18:52,685 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 18:18:52,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:18:52,686 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2020-08-22 18:18:52,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:18:52,687 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2020-08-22 18:18:52,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:18:52,689 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-22 18:18:52,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:18:52,690 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-22 18:18:52,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:18:52,691 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2020-08-22 18:18:52,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:18:52,692 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2020-08-22 18:18:52,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:18:52,694 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-22 18:18:52,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:18:52,695 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-08-22 18:18:52,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:18:52,699 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 430 [2020-08-22 18:18:52,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:18:52,700 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 439 [2020-08-22 18:18:52,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:18:52,701 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 448 [2020-08-22 18:18:52,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:18:52,702 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 453 [2020-08-22 18:18:52,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:18:52,704 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 18:18:52,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:18:52,705 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 467 [2020-08-22 18:18:52,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:18:52,710 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-22 18:18:52,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:18:52,713 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-22 18:18:52,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:18:52,714 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-22 18:18:52,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:18:52,715 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-08-22 18:18:52,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:18:52,717 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-22 18:18:52,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:18:52,719 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-22 18:18:52,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:18:52,719 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2020-08-22 18:18:52,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:18:52,723 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 530 [2020-08-22 18:18:52,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:18:52,725 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 540 [2020-08-22 18:18:52,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:18:53,526 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2020-08-22 18:18:53,527 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2048443452] [2020-08-22 18:18:53,527 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-22 18:18:53,527 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [23] imperfect sequences [] total 23 [2020-08-22 18:18:53,527 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1110651881] [2020-08-22 18:18:53,528 INFO L459 AbstractCegarLoop]: Interpolant automaton has 23 states [2020-08-22 18:18:53,528 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-22 18:18:53,528 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2020-08-22 18:18:53,528 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=55, Invalid=451, Unknown=0, NotChecked=0, Total=506 [2020-08-22 18:18:53,528 INFO L87 Difference]: Start difference. First operand 8801 states and 9707 transitions. Second operand 23 states. [2020-08-22 18:18:54,082 WARN L193 SmtUtils]: Spent 200.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-08-22 18:18:54,432 WARN L193 SmtUtils]: Spent 211.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-08-22 18:18:54,686 WARN L193 SmtUtils]: Spent 223.00 ms on a formula simplification that was a NOOP. DAG size: 196 [2020-08-22 18:18:54,942 WARN L193 SmtUtils]: Spent 205.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-08-22 18:18:55,192 WARN L193 SmtUtils]: Spent 210.00 ms on a formula simplification that was a NOOP. DAG size: 194 [2020-08-22 18:18:55,432 WARN L193 SmtUtils]: Spent 206.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-08-22 18:18:56,354 WARN L193 SmtUtils]: Spent 203.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-08-22 18:18:58,993 WARN L193 SmtUtils]: Spent 231.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-08-22 18:18:59,309 WARN L193 SmtUtils]: Spent 240.00 ms on a formula simplification that was a NOOP. DAG size: 195 [2020-08-22 18:18:59,672 WARN L193 SmtUtils]: Spent 232.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-08-22 18:19:00,019 WARN L193 SmtUtils]: Spent 229.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-08-22 18:19:00,298 WARN L193 SmtUtils]: Spent 243.00 ms on a formula simplification that was a NOOP. DAG size: 195 [2020-08-22 18:19:00,585 WARN L193 SmtUtils]: Spent 243.00 ms on a formula simplification that was a NOOP. DAG size: 195 [2020-08-22 18:19:00,849 WARN L193 SmtUtils]: Spent 225.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-08-22 18:19:01,145 WARN L193 SmtUtils]: Spent 245.00 ms on a formula simplification that was a NOOP. DAG size: 195 [2020-08-22 18:19:01,450 WARN L193 SmtUtils]: Spent 233.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-08-22 18:19:01,782 WARN L193 SmtUtils]: Spent 228.00 ms on a formula simplification that was a NOOP. DAG size: 195 [2020-08-22 18:19:02,047 WARN L193 SmtUtils]: Spent 213.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-08-22 18:19:02,326 WARN L193 SmtUtils]: Spent 227.00 ms on a formula simplification that was a NOOP. DAG size: 195 [2020-08-22 18:19:04,769 WARN L193 SmtUtils]: Spent 422.00 ms on a formula simplification. DAG size of input: 198 DAG size of output: 191 [2020-08-22 18:19:05,280 WARN L193 SmtUtils]: Spent 446.00 ms on a formula simplification. DAG size of input: 203 DAG size of output: 193 [2020-08-22 18:19:05,767 WARN L193 SmtUtils]: Spent 435.00 ms on a formula simplification. DAG size of input: 198 DAG size of output: 191 [2020-08-22 18:19:09,997 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-22 18:19:09,998 INFO L93 Difference]: Finished difference Result 18645 states and 21441 transitions. [2020-08-22 18:19:09,998 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 68 states. [2020-08-22 18:19:09,998 INFO L78 Accepts]: Start accepts. Automaton has 23 states. Word has length 553 [2020-08-22 18:19:09,999 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-22 18:19:10,038 INFO L225 Difference]: With dead ends: 18645 [2020-08-22 18:19:10,038 INFO L226 Difference]: Without dead ends: 10540 [2020-08-22 18:19:10,062 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 235 GetRequests, 150 SyntacticMatches, 1 SemanticMatches, 84 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2175 ImplicationChecksByTransitivity, 7.6s TimeCoverageRelationStatistics Valid=1316, Invalid=5994, Unknown=0, NotChecked=0, Total=7310 [2020-08-22 18:19:10,074 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10540 states. [2020-08-22 18:19:12,921 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10540 to 8115. [2020-08-22 18:19:12,922 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8115 states. [2020-08-22 18:19:12,932 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8115 states to 8115 states and 8947 transitions. [2020-08-22 18:19:12,935 INFO L78 Accepts]: Start accepts. Automaton has 8115 states and 8947 transitions. Word has length 553 [2020-08-22 18:19:12,935 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-22 18:19:12,935 INFO L479 AbstractCegarLoop]: Abstraction has 8115 states and 8947 transitions. [2020-08-22 18:19:12,935 INFO L480 AbstractCegarLoop]: Interpolant automaton has 23 states. [2020-08-22 18:19:12,935 INFO L276 IsEmpty]: Start isEmpty. Operand 8115 states and 8947 transitions. [2020-08-22 18:19:12,954 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 554 [2020-08-22 18:19:12,955 INFO L414 BasicCegarLoop]: Found error trace [2020-08-22 18:19:12,955 INFO L422 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2020-08-22 18:19:12,955 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2020-08-22 18:19:12,958 INFO L427 AbstractCegarLoop]: === Iteration 16 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-22 18:19:12,958 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-22 18:19:12,958 INFO L82 PathProgramCache]: Analyzing trace with hash 1886427033, now seen corresponding path program 2 times [2020-08-22 18:19:12,958 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-22 18:19:12,958 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2086974533] [2020-08-22 18:19:12,959 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-22 18:19:12,971 INFO L288 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-08-22 18:19:13,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:19:13,292 WARN L193 SmtUtils]: Spent 192.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-08-22 18:19:13,292 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 18:19:13,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:19:13,309 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2020-08-22 18:19:13,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:19:13,310 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-08-22 18:19:13,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:19:13,310 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-08-22 18:19:13,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:19:13,311 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-08-22 18:19:13,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:19:13,323 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-08-22 18:19:13,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:19:13,331 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2020-08-22 18:19:13,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:19:13,340 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2020-08-22 18:19:13,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:19:13,354 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 138 [2020-08-22 18:19:13,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:19:13,363 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 18:19:13,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:19:13,364 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 18:19:13,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:19:13,392 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2020-08-22 18:19:13,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:19:13,395 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-22 18:19:13,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:19:13,399 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-22 18:19:13,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:19:13,400 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-22 18:19:13,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:19:13,401 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-08-22 18:19:13,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:19:13,403 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-22 18:19:13,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:19:13,404 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-22 18:19:13,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:19:13,405 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2020-08-22 18:19:13,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:19:13,410 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2020-08-22 18:19:13,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:19:13,486 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-22 18:19:13,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:19:13,529 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 244 [2020-08-22 18:19:13,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:19:13,531 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 248 [2020-08-22 18:19:13,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:19:13,571 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 18:19:13,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:19:13,574 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 18:19:13,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:19:13,574 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2020-08-22 18:19:13,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:19:13,586 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2020-08-22 18:19:13,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:19:13,589 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-22 18:19:13,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:19:13,590 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-22 18:19:13,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:19:13,591 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2020-08-22 18:19:13,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:19:13,592 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-22 18:19:13,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:19:13,592 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2020-08-22 18:19:13,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:19:13,594 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-22 18:19:13,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:19:13,595 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-08-22 18:19:13,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:19:13,621 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 337 [2020-08-22 18:19:13,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:19:13,623 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 346 [2020-08-22 18:19:13,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:19:13,624 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 350 [2020-08-22 18:19:13,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:19:13,647 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 18:19:13,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:19:13,649 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 18:19:13,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:19:13,650 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2020-08-22 18:19:13,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:19:13,660 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2020-08-22 18:19:13,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:19:13,663 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-22 18:19:13,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:19:13,664 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-22 18:19:13,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:19:13,665 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2020-08-22 18:19:13,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:19:13,667 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2020-08-22 18:19:13,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:19:13,669 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-22 18:19:13,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:19:13,670 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-08-22 18:19:13,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:19:13,674 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 430 [2020-08-22 18:19:13,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:19:13,706 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 439 [2020-08-22 18:19:13,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:19:13,708 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 448 [2020-08-22 18:19:13,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:19:13,709 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 453 [2020-08-22 18:19:13,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:19:13,711 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 18:19:13,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:19:13,713 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 467 [2020-08-22 18:19:13,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:19:13,736 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-22 18:19:13,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:19:13,741 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-22 18:19:13,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:19:13,743 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-22 18:19:13,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:19:13,745 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-08-22 18:19:13,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:19:13,748 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-22 18:19:13,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:19:13,749 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-22 18:19:13,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:19:13,750 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2020-08-22 18:19:13,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:19:13,756 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 530 [2020-08-22 18:19:13,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:19:13,757 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 540 [2020-08-22 18:19:13,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:19:13,947 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-08-22 18:19:13,948 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2086974533] [2020-08-22 18:19:13,948 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-22 18:19:13,948 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2020-08-22 18:19:13,949 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1840334707] [2020-08-22 18:19:13,949 INFO L459 AbstractCegarLoop]: Interpolant automaton has 19 states [2020-08-22 18:19:13,950 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-22 18:19:13,950 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2020-08-22 18:19:13,950 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=52, Invalid=290, Unknown=0, NotChecked=0, Total=342 [2020-08-22 18:19:13,950 INFO L87 Difference]: Start difference. First operand 8115 states and 8947 transitions. Second operand 19 states. [2020-08-22 18:19:14,488 WARN L193 SmtUtils]: Spent 201.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-08-22 18:19:16,202 WARN L193 SmtUtils]: Spent 214.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-08-22 18:19:16,479 WARN L193 SmtUtils]: Spent 226.00 ms on a formula simplification that was a NOOP. DAG size: 195 [2020-08-22 18:19:16,978 WARN L193 SmtUtils]: Spent 421.00 ms on a formula simplification. DAG size of input: 197 DAG size of output: 191 [2020-08-22 18:19:17,243 WARN L193 SmtUtils]: Spent 209.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-08-22 18:19:17,724 WARN L193 SmtUtils]: Spent 446.00 ms on a formula simplification. DAG size of input: 202 DAG size of output: 193 [2020-08-22 18:19:17,981 WARN L193 SmtUtils]: Spent 224.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-08-22 18:19:18,440 WARN L193 SmtUtils]: Spent 423.00 ms on a formula simplification. DAG size of input: 197 DAG size of output: 191 [2020-08-22 18:19:18,695 WARN L193 SmtUtils]: Spent 201.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-08-22 18:19:18,974 WARN L193 SmtUtils]: Spent 223.00 ms on a formula simplification that was a NOOP. DAG size: 196 [2020-08-22 18:19:19,321 WARN L193 SmtUtils]: Spent 263.00 ms on a formula simplification that was a NOOP. DAG size: 201 [2020-08-22 18:19:19,600 WARN L193 SmtUtils]: Spent 231.00 ms on a formula simplification that was a NOOP. DAG size: 196 [2020-08-22 18:19:20,285 WARN L193 SmtUtils]: Spent 629.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-08-22 18:19:21,540 WARN L193 SmtUtils]: Spent 226.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-08-22 18:19:21,836 WARN L193 SmtUtils]: Spent 242.00 ms on a formula simplification that was a NOOP. DAG size: 195 [2020-08-22 18:19:22,432 WARN L193 SmtUtils]: Spent 463.00 ms on a formula simplification. DAG size of input: 196 DAG size of output: 194 [2020-08-22 18:19:23,023 WARN L193 SmtUtils]: Spent 474.00 ms on a formula simplification. DAG size of input: 201 DAG size of output: 197 [2020-08-22 18:19:23,511 WARN L193 SmtUtils]: Spent 438.00 ms on a formula simplification. DAG size of input: 196 DAG size of output: 194 [2020-08-22 18:19:24,309 WARN L193 SmtUtils]: Spent 220.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-08-22 18:19:24,591 WARN L193 SmtUtils]: Spent 226.00 ms on a formula simplification that was a NOOP. DAG size: 195 [2020-08-22 18:19:28,244 WARN L193 SmtUtils]: Spent 212.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-08-22 18:19:29,149 WARN L193 SmtUtils]: Spent 228.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-08-22 18:19:29,439 WARN L193 SmtUtils]: Spent 244.00 ms on a formula simplification that was a NOOP. DAG size: 195 [2020-08-22 18:19:29,936 WARN L193 SmtUtils]: Spent 438.00 ms on a formula simplification. DAG size of input: 198 DAG size of output: 191 [2020-08-22 18:19:30,460 WARN L193 SmtUtils]: Spent 466.00 ms on a formula simplification. DAG size of input: 203 DAG size of output: 193 [2020-08-22 18:19:30,946 WARN L193 SmtUtils]: Spent 443.00 ms on a formula simplification. DAG size of input: 198 DAG size of output: 191 [2020-08-22 18:19:39,763 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-22 18:19:39,764 INFO L93 Difference]: Finished difference Result 20541 states and 24464 transitions. [2020-08-22 18:19:39,764 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 119 states. [2020-08-22 18:19:39,764 INFO L78 Accepts]: Start accepts. Automaton has 19 states. Word has length 553 [2020-08-22 18:19:39,765 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-22 18:19:39,821 INFO L225 Difference]: With dead ends: 20541 [2020-08-22 18:19:39,821 INFO L226 Difference]: Without dead ends: 15820 [2020-08-22 18:19:39,843 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 328 GetRequests, 194 SyntacticMatches, 7 SemanticMatches, 127 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6181 ImplicationChecksByTransitivity, 11.1s TimeCoverageRelationStatistics Valid=2603, Invalid=13909, Unknown=0, NotChecked=0, Total=16512 [2020-08-22 18:19:39,857 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15820 states. [2020-08-22 18:19:43,311 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15820 to 10271. [2020-08-22 18:19:43,312 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10271 states. [2020-08-22 18:19:43,327 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10271 states to 10271 states and 11303 transitions. [2020-08-22 18:19:43,331 INFO L78 Accepts]: Start accepts. Automaton has 10271 states and 11303 transitions. Word has length 553 [2020-08-22 18:19:43,331 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-22 18:19:43,331 INFO L479 AbstractCegarLoop]: Abstraction has 10271 states and 11303 transitions. [2020-08-22 18:19:43,331 INFO L480 AbstractCegarLoop]: Interpolant automaton has 19 states. [2020-08-22 18:19:43,331 INFO L276 IsEmpty]: Start isEmpty. Operand 10271 states and 11303 transitions. [2020-08-22 18:19:43,352 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 623 [2020-08-22 18:19:43,352 INFO L414 BasicCegarLoop]: Found error trace [2020-08-22 18:19:43,352 INFO L422 BasicCegarLoop]: trace histogram [9, 9, 9, 9, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2020-08-22 18:19:43,352 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2020-08-22 18:19:43,352 INFO L427 AbstractCegarLoop]: === Iteration 17 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-22 18:19:43,353 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-22 18:19:43,353 INFO L82 PathProgramCache]: Analyzing trace with hash -1869648953, now seen corresponding path program 1 times [2020-08-22 18:19:43,353 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-22 18:19:43,353 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1209426428] [2020-08-22 18:19:43,353 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-22 18:19:43,363 INFO L288 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-08-22 18:19:43,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:19:43,790 WARN L193 SmtUtils]: Spent 211.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-08-22 18:19:43,791 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 18:19:43,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:19:43,808 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2020-08-22 18:19:43,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:19:43,809 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-08-22 18:19:43,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:19:43,810 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-08-22 18:19:43,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:19:43,811 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-08-22 18:19:43,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:19:43,829 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-08-22 18:19:43,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:19:43,842 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2020-08-22 18:19:43,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:19:43,856 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2020-08-22 18:19:43,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:19:43,882 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 138 [2020-08-22 18:19:43,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:19:43,897 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 18:19:43,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:19:43,899 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 18:19:43,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:19:43,913 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2020-08-22 18:19:43,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:19:43,917 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-22 18:19:43,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:19:43,920 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-22 18:19:43,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:19:43,922 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-22 18:19:43,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:19:43,923 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-08-22 18:19:43,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:19:43,924 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-22 18:19:43,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:19:43,926 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-22 18:19:43,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:19:43,927 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2020-08-22 18:19:43,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:19:43,931 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2020-08-22 18:19:43,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:19:44,018 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-22 18:19:44,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:19:44,070 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 244 [2020-08-22 18:19:44,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:19:44,072 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 248 [2020-08-22 18:19:44,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:19:44,110 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 18:19:44,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:19:44,112 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 18:19:44,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:19:44,113 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2020-08-22 18:19:44,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:19:44,133 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2020-08-22 18:19:44,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:19:44,141 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-22 18:19:44,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:19:44,142 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-22 18:19:44,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:19:44,144 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2020-08-22 18:19:44,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:19:44,145 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-22 18:19:44,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:19:44,147 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2020-08-22 18:19:44,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:19:44,150 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-22 18:19:44,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:19:44,151 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-08-22 18:19:44,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:19:44,156 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 341 [2020-08-22 18:19:44,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:19:44,158 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 345 [2020-08-22 18:19:44,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:19:44,219 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 18:19:44,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:19:44,222 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 18:19:44,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:19:44,223 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2020-08-22 18:19:44,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:19:44,271 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2020-08-22 18:19:44,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:19:44,275 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-22 18:19:44,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:19:44,276 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-22 18:19:44,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:19:44,277 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2020-08-22 18:19:44,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:19:44,278 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-22 18:19:44,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:19:44,279 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2020-08-22 18:19:44,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:19:44,282 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-22 18:19:44,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:19:44,283 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-08-22 18:19:44,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:19:44,289 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 430 [2020-08-22 18:19:44,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:19:44,387 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 447 [2020-08-22 18:19:44,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:19:44,389 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-22 18:19:44,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:19:44,390 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 456 [2020-08-22 18:19:44,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:19:44,586 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 18:19:44,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:19:44,589 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 18:19:44,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:19:44,590 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2020-08-22 18:19:44,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:19:44,592 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-22 18:19:44,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:19:44,593 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-08-22 18:19:44,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:19:44,596 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 504 [2020-08-22 18:19:44,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:19:44,667 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 517 [2020-08-22 18:19:44,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:19:44,669 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 522 [2020-08-22 18:19:44,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:19:44,671 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 18:19:44,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:19:44,672 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 536 [2020-08-22 18:19:44,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:19:44,686 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-22 18:19:44,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:19:44,695 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-22 18:19:44,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:19:44,696 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-22 18:19:44,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:19:44,697 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-08-22 18:19:44,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:19:44,700 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-22 18:19:44,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:19:44,701 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-22 18:19:44,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:19:44,702 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2020-08-22 18:19:44,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:19:44,708 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 599 [2020-08-22 18:19:44,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:19:44,753 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 609 [2020-08-22 18:19:44,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:19:44,983 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2020-08-22 18:19:44,984 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1209426428] [2020-08-22 18:19:44,984 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-22 18:19:44,984 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2020-08-22 18:19:44,984 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1258823161] [2020-08-22 18:19:44,985 INFO L459 AbstractCegarLoop]: Interpolant automaton has 26 states [2020-08-22 18:19:44,985 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-22 18:19:44,985 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2020-08-22 18:19:44,986 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=73, Invalid=577, Unknown=0, NotChecked=0, Total=650 [2020-08-22 18:19:44,986 INFO L87 Difference]: Start difference. First operand 10271 states and 11303 transitions. Second operand 26 states. [2020-08-22 18:19:45,750 WARN L193 SmtUtils]: Spent 413.00 ms on a formula simplification. DAG size of input: 192 DAG size of output: 189 [2020-08-22 18:19:46,923 WARN L193 SmtUtils]: Spent 405.00 ms on a formula simplification. DAG size of input: 192 DAG size of output: 189 [2020-08-22 18:19:48,411 WARN L193 SmtUtils]: Spent 438.00 ms on a formula simplification. DAG size of input: 195 DAG size of output: 192 [2020-08-22 18:19:48,957 WARN L193 SmtUtils]: Spent 476.00 ms on a formula simplification. DAG size of input: 198 DAG size of output: 195 [2020-08-22 18:19:49,508 WARN L193 SmtUtils]: Spent 437.00 ms on a formula simplification. DAG size of input: 200 DAG size of output: 191 [2020-08-22 18:19:50,016 WARN L193 SmtUtils]: Spent 437.00 ms on a formula simplification. DAG size of input: 195 DAG size of output: 192 [2020-08-22 18:19:50,524 WARN L193 SmtUtils]: Spent 461.00 ms on a formula simplification. DAG size of input: 205 DAG size of output: 193 [2020-08-22 18:19:51,023 WARN L193 SmtUtils]: Spent 459.00 ms on a formula simplification. DAG size of input: 198 DAG size of output: 195 [2020-08-22 18:19:51,506 WARN L193 SmtUtils]: Spent 437.00 ms on a formula simplification. DAG size of input: 200 DAG size of output: 191 [2020-08-22 18:19:52,509 WARN L193 SmtUtils]: Spent 911.00 ms on a formula simplification. DAG size of input: 194 DAG size of output: 191 [2020-08-22 18:19:53,021 WARN L193 SmtUtils]: Spent 428.00 ms on a formula simplification. DAG size of input: 196 DAG size of output: 193 [2020-08-22 18:19:53,494 WARN L193 SmtUtils]: Spent 425.00 ms on a formula simplification. DAG size of input: 194 DAG size of output: 191 [2020-08-22 18:19:57,413 WARN L193 SmtUtils]: Spent 405.00 ms on a formula simplification. DAG size of input: 192 DAG size of output: 189 [2020-08-22 18:19:58,387 WARN L193 SmtUtils]: Spent 432.00 ms on a formula simplification. DAG size of input: 195 DAG size of output: 192 [2020-08-22 18:19:58,887 WARN L193 SmtUtils]: Spent 461.00 ms on a formula simplification. DAG size of input: 198 DAG size of output: 195 [2020-08-22 18:19:59,389 WARN L193 SmtUtils]: Spent 436.00 ms on a formula simplification. DAG size of input: 200 DAG size of output: 191 [2020-08-22 18:19:59,942 WARN L193 SmtUtils]: Spent 495.00 ms on a formula simplification. DAG size of input: 205 DAG size of output: 193 [2020-08-22 18:20:00,427 WARN L193 SmtUtils]: Spent 441.00 ms on a formula simplification. DAG size of input: 200 DAG size of output: 191 [2020-08-22 18:20:05,662 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-22 18:20:05,663 INFO L93 Difference]: Finished difference Result 19259 states and 21919 transitions. [2020-08-22 18:20:05,663 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 62 states. [2020-08-22 18:20:05,663 INFO L78 Accepts]: Start accepts. Automaton has 26 states. Word has length 622 [2020-08-22 18:20:05,664 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-22 18:20:05,668 INFO L225 Difference]: With dead ends: 19259 [2020-08-22 18:20:05,668 INFO L226 Difference]: Without dead ends: 0 [2020-08-22 18:20:05,699 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 248 GetRequests, 157 SyntacticMatches, 11 SemanticMatches, 80 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1939 ImplicationChecksByTransitivity, 10.8s TimeCoverageRelationStatistics Valid=1065, Invalid=5577, Unknown=0, NotChecked=0, Total=6642 [2020-08-22 18:20:05,700 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-08-22 18:20:05,700 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-08-22 18:20:05,700 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-08-22 18:20:05,700 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-08-22 18:20:05,703 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 622 [2020-08-22 18:20:05,703 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-22 18:20:05,703 INFO L479 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-08-22 18:20:05,703 INFO L480 AbstractCegarLoop]: Interpolant automaton has 26 states. [2020-08-22 18:20:05,703 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-08-22 18:20:05,704 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-08-22 18:20:05,704 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2020-08-22 18:20:05,706 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-08-22 18:20:06,003 WARN L193 SmtUtils]: Spent 149.00 ms on a formula simplification. DAG size of input: 245 DAG size of output: 235 [2020-08-22 18:20:07,709 WARN L193 SmtUtils]: Spent 190.00 ms on a formula simplification. DAG size of input: 237 DAG size of output: 228 [2020-08-22 18:20:09,107 WARN L193 SmtUtils]: Spent 121.00 ms on a formula simplification. DAG size of input: 251 DAG size of output: 242 [2020-08-22 18:20:10,724 WARN L193 SmtUtils]: Spent 210.00 ms on a formula simplification. DAG size of input: 257 DAG size of output: 249 [2020-08-22 18:20:11,349 WARN L193 SmtUtils]: Spent 109.00 ms on a formula simplification. DAG size of input: 242 DAG size of output: 232 [2020-08-22 18:20:11,472 WARN L193 SmtUtils]: Spent 120.00 ms on a formula simplification. DAG size of input: 248 DAG size of output: 239 [2020-08-22 18:20:11,665 WARN L193 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 257 DAG size of output: 250 [2020-08-22 18:20:14,797 WARN L193 SmtUtils]: Spent 144.00 ms on a formula simplification. DAG size of input: 250 DAG size of output: 247 [2020-08-22 18:20:19,468 WARN L193 SmtUtils]: Spent 4.56 s on a formula simplification. DAG size of input: 1246 DAG size of output: 760 [2020-08-22 18:20:22,720 WARN L193 SmtUtils]: Spent 119.00 ms on a formula simplification. DAG size of input: 273 DAG size of output: 265 [2020-08-22 18:20:23,190 WARN L193 SmtUtils]: Spent 129.00 ms on a formula simplification. DAG size of input: 270 DAG size of output: 262 [2020-08-22 18:20:23,736 WARN L193 SmtUtils]: Spent 144.00 ms on a formula simplification. DAG size of input: 272 DAG size of output: 264 [2020-08-22 18:20:23,880 WARN L193 SmtUtils]: Spent 123.00 ms on a formula simplification. DAG size of input: 271 DAG size of output: 261 [2020-08-22 18:20:30,575 WARN L193 SmtUtils]: Spent 5.45 s on a formula simplification. DAG size of input: 1230 DAG size of output: 825 [2020-08-22 18:20:31,068 WARN L193 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 273 DAG size of output: 253 [2020-08-22 18:20:33,017 WARN L193 SmtUtils]: Spent 206.00 ms on a formula simplification. DAG size of input: 272 DAG size of output: 252 [2020-08-22 18:20:33,229 WARN L193 SmtUtils]: Spent 148.00 ms on a formula simplification. DAG size of input: 283 DAG size of output: 258 [2020-08-22 18:20:33,774 WARN L193 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 273 DAG size of output: 253 [2020-08-22 18:20:34,943 WARN L193 SmtUtils]: Spent 112.00 ms on a formula simplification. DAG size of input: 282 DAG size of output: 258 [2020-08-22 18:20:35,775 WARN L193 SmtUtils]: Spent 109.00 ms on a formula simplification. DAG size of input: 272 DAG size of output: 252 [2020-08-22 18:20:35,928 WARN L193 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 283 DAG size of output: 258 [2020-08-22 18:20:43,044 WARN L193 SmtUtils]: Spent 7.06 s on a formula simplification. DAG size of input: 1252 DAG size of output: 787 [2020-08-22 18:20:52,574 WARN L193 SmtUtils]: Spent 7.36 s on a formula simplification. DAG size of input: 1416 DAG size of output: 923 [2020-08-22 18:20:53,010 WARN L193 SmtUtils]: Spent 115.00 ms on a formula simplification. DAG size of input: 248 DAG size of output: 244 [2020-08-22 18:20:57,719 WARN L193 SmtUtils]: Spent 108.00 ms on a formula simplification. DAG size of input: 247 DAG size of output: 243 [2020-08-22 18:21:06,172 WARN L193 SmtUtils]: Spent 7.27 s on a formula simplification. DAG size of input: 1416 DAG size of output: 923 [2020-08-22 18:21:07,858 WARN L193 SmtUtils]: Spent 136.00 ms on a formula simplification. DAG size of input: 254 DAG size of output: 251 [2020-08-22 18:21:09,382 WARN L193 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 263 DAG size of output: 251 [2020-08-22 18:21:09,705 WARN L193 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 265 DAG size of output: 251 [2020-08-22 18:21:13,413 WARN L193 SmtUtils]: Spent 137.00 ms on a formula simplification. DAG size of input: 253 DAG size of output: 250 [2020-08-22 18:21:13,777 WARN L193 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 267 DAG size of output: 234 [2020-08-22 18:21:13,923 WARN L193 SmtUtils]: Spent 113.00 ms on a formula simplification. DAG size of input: 266 DAG size of output: 252 [2020-08-22 18:21:14,384 WARN L193 SmtUtils]: Spent 134.00 ms on a formula simplification. DAG size of input: 268 DAG size of output: 254 [2020-08-22 18:21:15,072 WARN L193 SmtUtils]: Spent 110.00 ms on a formula simplification. DAG size of input: 265 DAG size of output: 232 [2020-08-22 18:21:32,399 WARN L193 SmtUtils]: Spent 4.50 s on a formula simplification. DAG size of input: 1246 DAG size of output: 760 [2020-08-22 18:21:32,817 WARN L193 SmtUtils]: Spent 115.00 ms on a formula simplification. DAG size of input: 248 DAG size of output: 244 [2020-08-22 18:21:37,354 WARN L193 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 247 DAG size of output: 243 [2020-08-22 18:21:54,917 WARN L193 SmtUtils]: Spent 10.46 s on a formula simplification. DAG size of input: 1667 DAG size of output: 1037 [2020-08-22 18:21:59,415 WARN L193 SmtUtils]: Spent 4.49 s on a formula simplification. DAG size of input: 1246 DAG size of output: 760 [2020-08-22 18:22:04,815 WARN L193 SmtUtils]: Spent 4.46 s on a formula simplification. DAG size of input: 1246 DAG size of output: 760 [2020-08-22 18:22:17,411 WARN L193 SmtUtils]: Spent 124.00 ms on a formula simplification. DAG size of input: 248 DAG size of output: 244 [2020-08-22 18:22:23,581 WARN L193 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 247 DAG size of output: 243 [2020-08-22 18:22:23,714 WARN L193 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 247 DAG size of output: 243 [2020-08-22 18:22:32,353 WARN L193 SmtUtils]: Spent 124.00 ms on a formula simplification. DAG size of input: 253 DAG size of output: 247 [2020-08-22 18:22:36,281 WARN L193 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 250 DAG size of output: 240 [2020-08-22 18:22:37,152 WARN L193 SmtUtils]: Spent 134.00 ms on a formula simplification. DAG size of input: 252 DAG size of output: 246 [2020-08-22 18:22:43,410 WARN L193 SmtUtils]: Spent 4.48 s on a formula simplification. DAG size of input: 1246 DAG size of output: 760 [2020-08-22 18:22:45,598 WARN L193 SmtUtils]: Spent 146.00 ms on a formula simplification. DAG size of input: 273 DAG size of output: 265 [2020-08-22 18:22:46,068 WARN L193 SmtUtils]: Spent 131.00 ms on a formula simplification. DAG size of input: 270 DAG size of output: 262 [2020-08-22 18:22:46,648 WARN L193 SmtUtils]: Spent 176.00 ms on a formula simplification. DAG size of input: 272 DAG size of output: 264 [2020-08-22 18:22:46,798 WARN L193 SmtUtils]: Spent 128.00 ms on a formula simplification. DAG size of input: 271 DAG size of output: 262 [2020-08-22 18:22:57,285 WARN L193 SmtUtils]: Spent 10.48 s on a formula simplification. DAG size of input: 1667 DAG size of output: 1037 [2020-08-22 18:22:57,756 WARN L193 SmtUtils]: Spent 125.00 ms on a formula simplification. DAG size of input: 253 DAG size of output: 247 [2020-08-22 18:23:01,714 WARN L193 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 250 DAG size of output: 240 [2020-08-22 18:23:02,593 WARN L193 SmtUtils]: Spent 133.00 ms on a formula simplification. DAG size of input: 252 DAG size of output: 246 [2020-08-22 18:23:05,324 WARN L193 SmtUtils]: Spent 142.00 ms on a formula simplification. DAG size of input: 273 DAG size of output: 265 [2020-08-22 18:23:05,797 WARN L193 SmtUtils]: Spent 130.00 ms on a formula simplification. DAG size of input: 270 DAG size of output: 262 [2020-08-22 18:23:06,346 WARN L193 SmtUtils]: Spent 144.00 ms on a formula simplification. DAG size of input: 272 DAG size of output: 264 [2020-08-22 18:23:06,495 WARN L193 SmtUtils]: Spent 127.00 ms on a formula simplification. DAG size of input: 271 DAG size of output: 262 [2020-08-22 18:23:16,999 WARN L193 SmtUtils]: Spent 10.50 s on a formula simplification. DAG size of input: 1667 DAG size of output: 1037 [2020-08-22 18:23:27,642 WARN L193 SmtUtils]: Spent 10.64 s on a formula simplification. DAG size of input: 1667 DAG size of output: 1037 [2020-08-22 18:23:30,474 WARN L193 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 240 DAG size of output: 232 [2020-08-22 18:23:38,741 WARN L193 SmtUtils]: Spent 7.44 s on a formula simplification. DAG size of input: 1416 DAG size of output: 923 [2020-08-22 18:23:49,792 WARN L193 SmtUtils]: Spent 10.66 s on a formula simplification. DAG size of input: 1667 DAG size of output: 1037 [2020-08-22 18:23:52,158 WARN L193 SmtUtils]: Spent 174.00 ms on a formula simplification. DAG size of input: 275 DAG size of output: 267 [2020-08-22 18:23:52,626 WARN L193 SmtUtils]: Spent 132.00 ms on a formula simplification. DAG size of input: 272 DAG size of output: 264 [2020-08-22 18:23:53,159 WARN L193 SmtUtils]: Spent 132.00 ms on a formula simplification. DAG size of input: 274 DAG size of output: 266 [2020-08-22 18:23:53,307 WARN L193 SmtUtils]: Spent 126.00 ms on a formula simplification. DAG size of input: 273 DAG size of output: 264 [2020-08-22 18:23:54,390 WARN L193 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 277 DAG size of output: 256 [2020-08-22 18:23:54,827 WARN L193 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 278 DAG size of output: 258 [2020-08-22 18:23:59,375 WARN L193 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 251 DAG size of output: 239 [2020-08-22 18:24:01,527 WARN L193 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 251 DAG size of output: 239 [2020-08-22 18:24:20,046 WARN L193 SmtUtils]: Spent 6.02 s on a formula simplification. DAG size of input: 1260 DAG size of output: 736 [2020-08-22 18:24:24,476 WARN L193 SmtUtils]: Spent 4.43 s on a formula simplification. DAG size of input: 1246 DAG size of output: 760 [2020-08-22 18:24:31,700 WARN L193 SmtUtils]: Spent 7.22 s on a formula simplification. DAG size of input: 1416 DAG size of output: 923 [2020-08-22 18:24:37,195 WARN L193 SmtUtils]: Spent 127.00 ms on a formula simplification. DAG size of input: 283 DAG size of output: 254 [2020-08-22 18:24:37,561 WARN L193 SmtUtils]: Spent 131.00 ms on a formula simplification. DAG size of input: 281 DAG size of output: 252 [2020-08-22 18:24:37,897 WARN L193 SmtUtils]: Spent 131.00 ms on a formula simplification. DAG size of input: 281 DAG size of output: 252 [2020-08-22 18:24:38,375 WARN L193 SmtUtils]: Spent 126.00 ms on a formula simplification. DAG size of input: 283 DAG size of output: 254 [2020-08-22 18:24:38,737 WARN L193 SmtUtils]: Spent 129.00 ms on a formula simplification. DAG size of input: 281 DAG size of output: 252 [2020-08-22 18:24:39,263 WARN L193 SmtUtils]: Spent 128.00 ms on a formula simplification. DAG size of input: 283 DAG size of output: 254 [2020-08-22 18:24:39,568 WARN L193 SmtUtils]: Spent 131.00 ms on a formula simplification. DAG size of input: 281 DAG size of output: 252 [2020-08-22 18:24:39,884 WARN L193 SmtUtils]: Spent 128.00 ms on a formula simplification. DAG size of input: 283 DAG size of output: 254 [2020-08-22 18:24:40,416 WARN L193 SmtUtils]: Spent 129.00 ms on a formula simplification. DAG size of input: 281 DAG size of output: 252 [2020-08-22 18:24:40,893 WARN L193 SmtUtils]: Spent 129.00 ms on a formula simplification. DAG size of input: 281 DAG size of output: 252 [2020-08-22 18:24:41,516 WARN L193 SmtUtils]: Spent 125.00 ms on a formula simplification. DAG size of input: 283 DAG size of output: 254 [2020-08-22 18:24:41,690 WARN L193 SmtUtils]: Spent 136.00 ms on a formula simplification. DAG size of input: 283 DAG size of output: 254 [2020-08-22 18:24:44,898 WARN L193 SmtUtils]: Spent 117.00 ms on a formula simplification. DAG size of input: 264 DAG size of output: 251 [2020-08-22 18:24:45,034 WARN L193 SmtUtils]: Spent 109.00 ms on a formula simplification. DAG size of input: 263 DAG size of output: 233 [2020-08-22 18:24:45,395 WARN L193 SmtUtils]: Spent 111.00 ms on a formula simplification. DAG size of input: 265 DAG size of output: 235 [2020-08-22 18:24:45,999 WARN L193 SmtUtils]: Spent 113.00 ms on a formula simplification. DAG size of input: 262 DAG size of output: 249 [2020-08-22 18:24:56,994 WARN L193 SmtUtils]: Spent 10.42 s on a formula simplification. DAG size of input: 1667 DAG size of output: 1037 [2020-08-22 18:25:22,497 WARN L193 SmtUtils]: Spent 13.09 s on a formula simplification. DAG size of input: 1911 DAG size of output: 1228 [2020-08-22 18:25:44,919 WARN L193 SmtUtils]: Spent 115.00 ms on a formula simplification. DAG size of input: 248 DAG size of output: 244 [2020-08-22 18:25:48,210 WARN L193 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 247 DAG size of output: 243 [2020-08-22 18:25:48,644 WARN L193 SmtUtils]: Spent 116.00 ms on a formula simplification. DAG size of input: 261 DAG size of output: 248 [2020-08-22 18:25:48,780 WARN L193 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 260 DAG size of output: 233 [2020-08-22 18:25:49,165 WARN L193 SmtUtils]: Spent 116.00 ms on a formula simplification. DAG size of input: 262 DAG size of output: 235 [2020-08-22 18:25:49,829 WARN L193 SmtUtils]: Spent 126.00 ms on a formula simplification. DAG size of input: 259 DAG size of output: 245 [2020-08-22 18:25:57,210 WARN L193 SmtUtils]: Spent 7.26 s on a formula simplification. DAG size of input: 1416 DAG size of output: 923 [2020-08-22 18:26:10,784 WARN L193 SmtUtils]: Spent 10.76 s on a formula simplification. DAG size of input: 1667 DAG size of output: 1037 [2020-08-22 18:26:21,829 WARN L193 SmtUtils]: Spent 10.71 s on a formula simplification. DAG size of input: 1667 DAG size of output: 1037 [2020-08-22 18:26:24,104 WARN L193 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 278 DAG size of output: 258 [2020-08-22 18:26:25,070 WARN L193 SmtUtils]: Spent 605.00 ms on a formula simplification. DAG size of input: 254 DAG size of output: 238 [2020-08-22 18:26:33,156 WARN L193 SmtUtils]: Spent 113.00 ms on a formula simplification. DAG size of input: 267 DAG size of output: 234 [2020-08-22 18:26:33,309 WARN L193 SmtUtils]: Spent 119.00 ms on a formula simplification. DAG size of input: 266 DAG size of output: 252 [2020-08-22 18:26:33,730 WARN L193 SmtUtils]: Spent 131.00 ms on a formula simplification. DAG size of input: 268 DAG size of output: 254 [2020-08-22 18:26:34,407 WARN L193 SmtUtils]: Spent 108.00 ms on a formula simplification. DAG size of input: 265 DAG size of output: 232 [2020-08-22 18:26:35,025 WARN L193 SmtUtils]: Spent 137.00 ms on a formula simplification. DAG size of input: 254 DAG size of output: 251 [2020-08-22 18:26:36,504 WARN L193 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 263 DAG size of output: 251 [2020-08-22 18:26:38,474 WARN L193 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 265 DAG size of output: 253 [2020-08-22 18:26:40,563 WARN L193 SmtUtils]: Spent 135.00 ms on a formula simplification. DAG size of input: 253 DAG size of output: 250 [2020-08-22 18:26:46,445 WARN L193 SmtUtils]: Spent 3.57 s on a formula simplification. DAG size of input: 366 DAG size of output: 40 [2020-08-22 18:26:53,049 WARN L193 SmtUtils]: Spent 6.54 s on a formula simplification. DAG size of input: 698 DAG size of output: 42 [2020-08-22 18:27:01,897 WARN L193 SmtUtils]: Spent 8.82 s on a formula simplification. DAG size of input: 574 DAG size of output: 45 [2020-08-22 18:27:02,262 WARN L193 SmtUtils]: Spent 364.00 ms on a formula simplification. DAG size of input: 151 DAG size of output: 27 [2020-08-22 18:27:04,253 WARN L193 SmtUtils]: Spent 1.97 s on a formula simplification. DAG size of input: 316 DAG size of output: 43 [2020-08-22 18:27:06,426 WARN L193 SmtUtils]: Spent 2.16 s on a formula simplification. DAG size of input: 315 DAG size of output: 28 [2020-08-22 18:27:06,949 WARN L193 SmtUtils]: Spent 517.00 ms on a formula simplification. DAG size of input: 204 DAG size of output: 25 [2020-08-22 18:27:07,512 WARN L193 SmtUtils]: Spent 556.00 ms on a formula simplification. DAG size of input: 206 DAG size of output: 28 [2020-08-22 18:27:10,827 WARN L193 SmtUtils]: Spent 3.26 s on a formula simplification. DAG size of input: 400 DAG size of output: 39 [2020-08-22 18:27:15,312 WARN L193 SmtUtils]: Spent 4.44 s on a formula simplification. DAG size of input: 470 DAG size of output: 65 [2020-08-22 18:27:16,785 WARN L193 SmtUtils]: Spent 1.45 s on a formula simplification. DAG size of input: 291 DAG size of output: 37 [2020-08-22 18:27:33,874 WARN L193 SmtUtils]: Spent 17.08 s on a formula simplification. DAG size of input: 673 DAG size of output: 47 [2020-08-22 18:27:37,543 WARN L193 SmtUtils]: Spent 3.65 s on a formula simplification. DAG size of input: 380 DAG size of output: 38 [2020-08-22 18:27:41,068 WARN L193 SmtUtils]: Spent 3.51 s on a formula simplification. DAG size of input: 380 DAG size of output: 38 [2020-08-22 18:27:50,204 WARN L193 SmtUtils]: Spent 9.10 s on a formula simplification. DAG size of input: 606 DAG size of output: 57 [2020-08-22 18:27:50,600 WARN L193 SmtUtils]: Spent 289.00 ms on a formula simplification. DAG size of input: 358 DAG size of output: 1 [2020-08-22 18:28:04,039 WARN L193 SmtUtils]: Spent 13.43 s on a formula simplification. DAG size of input: 739 DAG size of output: 45 [2020-08-22 18:28:07,133 WARN L193 SmtUtils]: Spent 2.96 s on a formula simplification. DAG size of input: 619 DAG size of output: 1 [2020-08-22 18:28:07,931 WARN L193 SmtUtils]: Spent 787.00 ms on a formula simplification. DAG size of input: 319 DAG size of output: 1 [2020-08-22 18:28:21,545 WARN L193 SmtUtils]: Spent 13.61 s on a formula simplification. DAG size of input: 739 DAG size of output: 45 [2020-08-22 18:28:22,070 WARN L193 SmtUtils]: Spent 518.00 ms on a formula simplification. DAG size of input: 202 DAG size of output: 22 [2020-08-22 18:28:22,472 WARN L193 SmtUtils]: Spent 400.00 ms on a formula simplification. DAG size of input: 153 DAG size of output: 29 [2020-08-22 18:28:22,874 WARN L193 SmtUtils]: Spent 391.00 ms on a formula simplification. DAG size of input: 153 DAG size of output: 29 [2020-08-22 18:28:23,419 WARN L193 SmtUtils]: Spent 539.00 ms on a formula simplification. DAG size of input: 204 DAG size of output: 25 [2020-08-22 18:28:23,911 WARN L193 SmtUtils]: Spent 486.00 ms on a formula simplification. DAG size of input: 202 DAG size of output: 22 [2020-08-22 18:28:24,302 WARN L193 SmtUtils]: Spent 389.00 ms on a formula simplification. DAG size of input: 155 DAG size of output: 31 [2020-08-22 18:28:33,592 WARN L193 SmtUtils]: Spent 9.24 s on a formula simplification. DAG size of input: 675 DAG size of output: 45 [2020-08-22 18:28:36,256 WARN L193 SmtUtils]: Spent 2.65 s on a formula simplification. DAG size of input: 334 DAG size of output: 35 [2020-08-22 18:28:37,016 WARN L193 SmtUtils]: Spent 751.00 ms on a formula simplification. DAG size of input: 176 DAG size of output: 40 [2020-08-22 18:28:39,657 WARN L193 SmtUtils]: Spent 2.63 s on a formula simplification. DAG size of input: 346 DAG size of output: 40 [2020-08-22 18:28:42,558 WARN L193 SmtUtils]: Spent 2.87 s on a formula simplification. DAG size of input: 372 DAG size of output: 39 [2020-08-22 18:28:44,665 WARN L193 SmtUtils]: Spent 2.07 s on a formula simplification. DAG size of input: 406 DAG size of output: 52 [2020-08-22 18:28:45,264 WARN L193 SmtUtils]: Spent 588.00 ms on a formula simplification. DAG size of input: 291 DAG size of output: 23 [2020-08-22 18:28:45,632 WARN L193 SmtUtils]: Spent 366.00 ms on a formula simplification. DAG size of input: 151 DAG size of output: 27 [2020-08-22 18:28:49,129 WARN L193 SmtUtils]: Spent 3.48 s on a formula simplification. DAG size of input: 366 DAG size of output: 40 [2020-08-22 18:28:51,265 WARN L193 SmtUtils]: Spent 2.10 s on a formula simplification. DAG size of input: 258 DAG size of output: 39 [2020-08-22 18:28:52,452 WARN L193 SmtUtils]: Spent 1.16 s on a formula simplification. DAG size of input: 277 DAG size of output: 37 [2020-08-22 18:28:53,252 WARN L193 SmtUtils]: Spent 787.00 ms on a formula simplification. DAG size of input: 319 DAG size of output: 1 [2020-08-22 18:28:57,729 WARN L193 SmtUtils]: Spent 4.44 s on a formula simplification. DAG size of input: 440 DAG size of output: 66 [2020-08-22 18:28:58,040 WARN L193 SmtUtils]: Spent 290.00 ms on a formula simplification. DAG size of input: 358 DAG size of output: 1 [2020-08-22 18:28:59,316 WARN L193 SmtUtils]: Spent 1.26 s on a formula simplification. DAG size of input: 306 DAG size of output: 43 [2020-08-22 18:29:00,534 WARN L193 SmtUtils]: Spent 1.20 s on a formula simplification. DAG size of input: 276 DAG size of output: 41 [2020-08-22 18:29:00,696 WARN L193 SmtUtils]: Spent 150.00 ms on a formula simplification. DAG size of input: 252 DAG size of output: 1 [2020-08-22 18:29:09,565 WARN L193 SmtUtils]: Spent 8.86 s on a formula simplification. DAG size of input: 574 DAG size of output: 45 [2020-08-22 18:29:12,588 WARN L193 SmtUtils]: Spent 2.98 s on a formula simplification. DAG size of input: 619 DAG size of output: 1 [2020-08-22 18:29:13,795 WARN L193 SmtUtils]: Spent 1.18 s on a formula simplification. DAG size of input: 277 DAG size of output: 37 [2020-08-22 18:29:16,071 WARN L193 SmtUtils]: Spent 2.17 s on a formula simplification. DAG size of input: 258 DAG size of output: 39 [2020-08-22 18:29:17,836 WARN L193 SmtUtils]: Spent 1.75 s on a formula simplification. DAG size of input: 267 DAG size of output: 40 [2020-08-22 18:29:19,859 WARN L193 SmtUtils]: Spent 2.00 s on a formula simplification. DAG size of input: 313 DAG size of output: 29 [2020-08-22 18:29:21,919 WARN L193 SmtUtils]: Spent 2.04 s on a formula simplification. DAG size of input: 313 DAG size of output: 29 [2020-08-22 18:29:22,886 WARN L193 SmtUtils]: Spent 928.00 ms on a formula simplification. DAG size of input: 209 DAG size of output: 42 [2020-08-22 18:29:23,696 WARN L193 SmtUtils]: Spent 790.00 ms on a formula simplification. DAG size of input: 319 DAG size of output: 1 [2020-08-22 18:29:24,124 WARN L193 SmtUtils]: Spent 418.00 ms on a formula simplification. DAG size of input: 144 DAG size of output: 22 [2020-08-22 18:29:26,674 WARN L193 SmtUtils]: Spent 2.51 s on a formula simplification. DAG size of input: 419 DAG size of output: 34 [2020-08-22 18:29:29,026 WARN L193 SmtUtils]: Spent 2.34 s on a formula simplification. DAG size of input: 315 DAG size of output: 28 [2020-08-22 18:29:29,659 WARN L193 SmtUtils]: Spent 621.00 ms on a formula simplification. DAG size of input: 291 DAG size of output: 23 [2020-08-22 18:29:30,051 WARN L193 SmtUtils]: Spent 371.00 ms on a formula simplification. DAG size of input: 151 DAG size of output: 27