/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_product46.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-72570d3 [2020-08-22 18:15:33,827 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-08-22 18:15:33,831 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-08-22 18:15:33,873 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-08-22 18:15:33,874 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-08-22 18:15:33,885 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-08-22 18:15:33,886 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-08-22 18:15:33,888 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-08-22 18:15:33,891 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-08-22 18:15:33,893 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-08-22 18:15:33,894 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-08-22 18:15:33,897 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-08-22 18:15:33,897 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-08-22 18:15:33,900 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-08-22 18:15:33,901 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-08-22 18:15:33,901 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-08-22 18:15:33,904 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-08-22 18:15:33,905 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-08-22 18:15:33,907 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-08-22 18:15:33,912 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-08-22 18:15:33,915 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-08-22 18:15:33,915 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-08-22 18:15:33,916 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-08-22 18:15:33,917 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-08-22 18:15:33,919 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-08-22 18:15:33,919 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-08-22 18:15:33,920 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-08-22 18:15:33,920 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-08-22 18:15:33,921 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-08-22 18:15:33,922 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-08-22 18:15:33,922 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-08-22 18:15:33,922 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-08-22 18:15:33,923 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-08-22 18:15:33,924 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-08-22 18:15:33,925 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-08-22 18:15:33,925 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-08-22 18:15:33,925 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-08-22 18:15:33,926 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-08-22 18:15:33,926 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-08-22 18:15:33,926 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-08-22 18:15:33,927 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-08-22 18:15:33,928 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 18:15:33,937 INFO L113 SettingsManager]: Loading preferences was successful [2020-08-22 18:15:33,937 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-08-22 18:15:33,938 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-08-22 18:15:33,938 INFO L138 SettingsManager]: * sizeof long=4 [2020-08-22 18:15:33,939 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-08-22 18:15:33,939 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-08-22 18:15:33,939 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-08-22 18:15:33,939 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-08-22 18:15:33,939 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-08-22 18:15:33,940 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-08-22 18:15:33,940 INFO L138 SettingsManager]: * sizeof long double=12 [2020-08-22 18:15:33,940 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-08-22 18:15:33,940 INFO L138 SettingsManager]: * Use constant arrays=true [2020-08-22 18:15:33,940 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-08-22 18:15:33,941 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-08-22 18:15:33,941 INFO L138 SettingsManager]: * Size of a code block=SingleStatement [2020-08-22 18:15:33,941 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-08-22 18:15:33,941 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-08-22 18:15:33,941 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-08-22 18:15:33,942 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-08-22 18:15:33,942 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=AcceleratedInterpolation [2020-08-22 18:15:33,942 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-08-22 18:15:33,942 INFO L138 SettingsManager]: * Use separate solver for trace checks=false [2020-08-22 18:15:34,227 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-08-22 18:15:34,243 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-08-22 18:15:34,247 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-08-22 18:15:34,248 INFO L271 PluginConnector]: Initializing CDTParser... [2020-08-22 18:15:34,249 INFO L275 PluginConnector]: CDTParser initialized [2020-08-22 18:15:34,249 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec5_product46.cil.c [2020-08-22 18:15:34,309 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5ed380ee5/d40cc154194645fea96653f2cdd65a99/FLAG16d697a78 [2020-08-22 18:15:34,809 INFO L306 CDTParser]: Found 1 translation units. [2020-08-22 18:15:34,809 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/minepump_spec5_product46.cil.c [2020-08-22 18:15:34,821 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5ed380ee5/d40cc154194645fea96653f2cdd65a99/FLAG16d697a78 [2020-08-22 18:15:35,076 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5ed380ee5/d40cc154194645fea96653f2cdd65a99 [2020-08-22 18:15:35,084 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-08-22 18:15:35,086 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-08-22 18:15:35,087 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-08-22 18:15:35,087 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-08-22 18:15:35,090 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-08-22 18:15:35,091 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.08 06:15:35" (1/1) ... [2020-08-22 18:15:35,094 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3ae11e50 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 06:15:35, skipping insertion in model container [2020-08-22 18:15:35,094 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.08 06:15:35" (1/1) ... [2020-08-22 18:15:35,101 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-08-22 18:15:35,139 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-08-22 18:15:35,528 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-08-22 18:15:35,540 INFO L203 MainTranslator]: Completed pre-run [2020-08-22 18:15:35,623 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-08-22 18:15:35,665 INFO L208 MainTranslator]: Completed translation [2020-08-22 18:15:35,666 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 06:15:35 WrapperNode [2020-08-22 18:15:35,666 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-08-22 18:15:35,666 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-08-22 18:15:35,667 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-08-22 18:15:35,667 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-08-22 18:15:35,679 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 06:15:35" (1/1) ... [2020-08-22 18:15:35,680 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 06:15:35" (1/1) ... [2020-08-22 18:15:35,697 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 06:15:35" (1/1) ... [2020-08-22 18:15:35,697 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 06:15:35" (1/1) ... [2020-08-22 18:15:35,730 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 06:15:35" (1/1) ... [2020-08-22 18:15:35,741 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 06:15:35" (1/1) ... [2020-08-22 18:15:35,746 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 06:15:35" (1/1) ... [2020-08-22 18:15:35,754 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-08-22 18:15:35,755 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-08-22 18:15:35,755 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-08-22 18:15:35,755 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-08-22 18:15:35,756 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 06:15:35" (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 18:15:35,817 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-08-22 18:15:35,818 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-08-22 18:15:35,818 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2020-08-22 18:15:35,818 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification5_spec__1 [2020-08-22 18:15:35,818 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification5_spec__2 [2020-08-22 18:15:35,818 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification5_spec__3 [2020-08-22 18:15:35,818 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2020-08-22 18:15:35,819 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2020-08-22 18:15:35,819 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2020-08-22 18:15:35,819 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2020-08-22 18:15:35,819 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-08-22 18:15:35,819 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2020-08-22 18:15:35,819 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2020-08-22 18:15:35,820 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2020-08-22 18:15:35,820 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2020-08-22 18:15:35,820 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2020-08-22 18:15:35,820 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2020-08-22 18:15:35,820 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2020-08-22 18:15:35,820 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2020-08-22 18:15:35,821 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2020-08-22 18:15:35,821 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2020-08-22 18:15:35,821 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2020-08-22 18:15:35,821 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2020-08-22 18:15:35,821 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterSensorDry [2020-08-22 18:15:35,822 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2020-08-22 18:15:35,822 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2020-08-22 18:15:35,822 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2020-08-22 18:15:35,822 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2020-08-22 18:15:35,822 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2020-08-22 18:15:35,822 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2020-08-22 18:15:35,823 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2020-08-22 18:15:35,823 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__methaneQuery [2020-08-22 18:15:35,823 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2020-08-22 18:15:35,823 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump__wrappee__highWaterSensor [2020-08-22 18:15:35,823 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2020-08-22 18:15:35,823 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2020-08-22 18:15:35,824 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2020-08-22 18:15:35,824 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2020-08-22 18:15:35,824 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2020-08-22 18:15:35,824 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterLevel [2020-08-22 18:15:35,824 INFO L138 BoogieDeclarations]: Found implementation of procedure startSystem [2020-08-22 18:15:35,824 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2020-08-22 18:15:35,824 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-08-22 18:15:35,825 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-08-22 18:15:35,825 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2020-08-22 18:15:35,825 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2020-08-22 18:15:35,825 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2020-08-22 18:15:35,825 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2020-08-22 18:15:35,825 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification5_spec__1 [2020-08-22 18:15:35,825 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification5_spec__2 [2020-08-22 18:15:35,826 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification5_spec__3 [2020-08-22 18:15:35,826 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2020-08-22 18:15:35,826 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2020-08-22 18:15:35,826 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2020-08-22 18:15:35,826 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2020-08-22 18:15:35,826 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2020-08-22 18:15:35,826 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2020-08-22 18:15:35,827 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2020-08-22 18:15:35,827 INFO L130 BoogieDeclarations]: Found specification of procedure test [2020-08-22 18:15:35,827 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2020-08-22 18:15:35,827 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2020-08-22 18:15:35,827 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2020-08-22 18:15:35,827 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2020-08-22 18:15:35,827 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-08-22 18:15:35,828 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-08-22 18:15:35,828 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-08-22 18:15:35,828 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-08-22 18:15:35,828 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2020-08-22 18:15:35,828 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-08-22 18:15:35,828 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-08-22 18:15:35,829 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-08-22 18:15:35,829 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-08-22 18:15:35,829 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2020-08-22 18:15:35,829 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-08-22 18:15:35,829 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2020-08-22 18:15:35,829 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2020-08-22 18:15:35,829 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-08-22 18:15:35,830 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2020-08-22 18:15:35,830 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2020-08-22 18:15:35,830 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-08-22 18:15:35,830 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2020-08-22 18:15:35,830 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2020-08-22 18:15:35,830 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2020-08-22 18:15:35,831 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2020-08-22 18:15:35,831 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterSensorDry [2020-08-22 18:15:35,831 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2020-08-22 18:15:35,831 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2020-08-22 18:15:35,831 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2020-08-22 18:15:35,831 INFO L130 BoogieDeclarations]: Found specification of procedure startSystem [2020-08-22 18:15:35,831 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2020-08-22 18:15:35,832 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2020-08-22 18:15:35,832 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterLevel [2020-08-22 18:15:35,832 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__methaneQuery [2020-08-22 18:15:35,832 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2020-08-22 18:15:35,832 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump__wrappee__highWaterSensor [2020-08-22 18:15:35,832 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-08-22 18:15:35,833 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-08-22 18:15:35,833 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-08-22 18:15:36,892 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-08-22 18:15:36,892 INFO L295 CfgBuilder]: Removed 5 assume(true) statements. [2020-08-22 18:15:36,898 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.08 06:15:36 BoogieIcfgContainer [2020-08-22 18:15:36,899 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-08-22 18:15:36,900 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-08-22 18:15:36,900 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-08-22 18:15:36,903 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-08-22 18:15:36,903 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.08 06:15:35" (1/3) ... [2020-08-22 18:15:36,904 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6d10b926 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.08 06:15:36, skipping insertion in model container [2020-08-22 18:15:36,904 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 06:15:35" (2/3) ... [2020-08-22 18:15:36,905 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6d10b926 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.08 06:15:36, skipping insertion in model container [2020-08-22 18:15:36,905 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.08 06:15:36" (3/3) ... [2020-08-22 18:15:36,906 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec5_product46.cil.c [2020-08-22 18:15:36,916 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:AcceleratedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-08-22 18:15:36,923 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-08-22 18:15:36,936 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-08-22 18:15:36,953 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-08-22 18:15:36,953 INFO L376 AbstractCegarLoop]: Hoare is true [2020-08-22 18:15:36,953 INFO L377 AbstractCegarLoop]: Compute interpolants for AcceleratedInterpolation [2020-08-22 18:15:36,954 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-08-22 18:15:36,954 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-08-22 18:15:36,954 INFO L380 AbstractCegarLoop]: Difference is false [2020-08-22 18:15:36,954 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-08-22 18:15:36,954 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-08-22 18:15:36,972 INFO L276 IsEmpty]: Start isEmpty. Operand 332 states. [2020-08-22 18:15:36,996 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 161 [2020-08-22 18:15:36,997 INFO L414 BasicCegarLoop]: Found error trace [2020-08-22 18:15:36,998 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 18:15:36,998 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-22 18:15:37,005 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-22 18:15:37,006 INFO L82 PathProgramCache]: Analyzing trace with hash -1445921999, now seen corresponding path program 1 times [2020-08-22 18:15:37,014 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-22 18:15:37,016 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1368507474] [2020-08-22 18:15:37,017 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-22 18:15:37,070 INFO L288 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-08-22 18:15:37,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:15:37,700 WARN L193 SmtUtils]: Spent 265.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-08-22 18:15:37,706 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 18:15:37,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:15:37,886 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2020-08-22 18:15:37,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:15:37,891 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-08-22 18:15:37,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:15:37,894 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-08-22 18:15:37,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:15:37,897 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-08-22 18:15:37,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:15:37,905 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-08-22 18:15:37,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:15:37,908 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2020-08-22 18:15:37,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:15:37,912 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 18:15:37,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:15:37,917 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2020-08-22 18:15:37,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:15:37,919 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2020-08-22 18:15:37,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:15:37,968 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 18:15:37,972 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1368507474] [2020-08-22 18:15:37,974 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-22 18:15:37,974 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-08-22 18:15:37,975 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1129554380] [2020-08-22 18:15:37,981 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-08-22 18:15:37,981 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-22 18:15:37,995 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-08-22 18:15:37,996 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-08-22 18:15:37,998 INFO L87 Difference]: Start difference. First operand 332 states. Second operand 4 states. [2020-08-22 18:15:39,261 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-22 18:15:39,262 INFO L93 Difference]: Finished difference Result 525 states and 615 transitions. [2020-08-22 18:15:39,262 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-08-22 18:15:39,264 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 160 [2020-08-22 18:15:39,265 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-22 18:15:39,282 INFO L225 Difference]: With dead ends: 525 [2020-08-22 18:15:39,282 INFO L226 Difference]: Without dead ends: 329 [2020-08-22 18:15:39,287 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-08-22 18:15:39,303 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 329 states. [2020-08-22 18:15:39,421 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 329 to 281. [2020-08-22 18:15:39,423 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 281 states. [2020-08-22 18:15:39,425 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 281 states to 281 states and 306 transitions. [2020-08-22 18:15:39,428 INFO L78 Accepts]: Start accepts. Automaton has 281 states and 306 transitions. Word has length 160 [2020-08-22 18:15:39,428 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-22 18:15:39,428 INFO L479 AbstractCegarLoop]: Abstraction has 281 states and 306 transitions. [2020-08-22 18:15:39,429 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-08-22 18:15:39,429 INFO L276 IsEmpty]: Start isEmpty. Operand 281 states and 306 transitions. [2020-08-22 18:15:39,434 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 162 [2020-08-22 18:15:39,434 INFO L414 BasicCegarLoop]: Found error trace [2020-08-22 18:15:39,434 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 18:15:39,434 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-08-22 18:15:39,435 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-22 18:15:39,435 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-22 18:15:39,435 INFO L82 PathProgramCache]: Analyzing trace with hash -345471189, now seen corresponding path program 1 times [2020-08-22 18:15:39,435 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-22 18:15:39,436 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1006945966] [2020-08-22 18:15:39,436 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-22 18:15:39,439 INFO L288 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-08-22 18:15:39,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:15:39,775 WARN L193 SmtUtils]: Spent 234.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-08-22 18:15:39,777 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 18:15:39,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:15:39,812 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2020-08-22 18:15:39,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:15:39,814 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-08-22 18:15:39,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:15:39,815 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-08-22 18:15:39,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:15:39,817 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-08-22 18:15:39,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:15:39,825 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-08-22 18:15:39,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:15:39,827 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2020-08-22 18:15:39,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:15:39,830 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 18:15:39,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:15:39,833 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 138 [2020-08-22 18:15:39,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:15:39,834 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2020-08-22 18:15:39,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:15:39,862 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 18:15:39,863 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1006945966] [2020-08-22 18:15:39,863 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-22 18:15:39,864 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-08-22 18:15:39,864 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [650695084] [2020-08-22 18:15:39,865 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-08-22 18:15:39,865 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-22 18:15:39,866 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-08-22 18:15:39,866 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-08-22 18:15:39,866 INFO L87 Difference]: Start difference. First operand 281 states and 306 transitions. Second operand 5 states. [2020-08-22 18:15:40,538 WARN L193 SmtUtils]: Spent 208.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-08-22 18:15:41,548 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-22 18:15:41,548 INFO L93 Difference]: Finished difference Result 450 states and 507 transitions. [2020-08-22 18:15:41,552 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-08-22 18:15:41,552 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 161 [2020-08-22 18:15:41,553 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-22 18:15:41,559 INFO L225 Difference]: With dead ends: 450 [2020-08-22 18:15:41,559 INFO L226 Difference]: Without dead ends: 318 [2020-08-22 18:15:41,561 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 18:15:41,562 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 318 states. [2020-08-22 18:15:41,628 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 318 to 271. [2020-08-22 18:15:41,628 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 271 states. [2020-08-22 18:15:41,630 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 271 states to 271 states and 293 transitions. [2020-08-22 18:15:41,630 INFO L78 Accepts]: Start accepts. Automaton has 271 states and 293 transitions. Word has length 161 [2020-08-22 18:15:41,631 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-22 18:15:41,631 INFO L479 AbstractCegarLoop]: Abstraction has 271 states and 293 transitions. [2020-08-22 18:15:41,631 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-08-22 18:15:41,631 INFO L276 IsEmpty]: Start isEmpty. Operand 271 states and 293 transitions. [2020-08-22 18:15:41,634 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 175 [2020-08-22 18:15:41,634 INFO L414 BasicCegarLoop]: Found error trace [2020-08-22 18:15:41,634 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 18:15:41,635 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-08-22 18:15:41,635 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-22 18:15:41,635 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-22 18:15:41,635 INFO L82 PathProgramCache]: Analyzing trace with hash 527888294, now seen corresponding path program 1 times [2020-08-22 18:15:41,636 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-22 18:15:41,636 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1621556718] [2020-08-22 18:15:41,636 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-22 18:15:41,639 INFO L288 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-08-22 18:15:41,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:15:41,951 WARN L193 SmtUtils]: Spent 212.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-08-22 18:15:41,954 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 18:15:41,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:15:41,985 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2020-08-22 18:15:41,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:15:41,986 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-08-22 18:15:41,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:15:41,987 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-08-22 18:15:41,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:15:42,017 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-08-22 18:15:42,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:15:42,028 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-08-22 18:15:42,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:15:42,046 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2020-08-22 18:15:42,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:15:42,062 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2020-08-22 18:15:42,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:15:42,065 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 18:15:42,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:15:42,067 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 151 [2020-08-22 18:15:42,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:15:42,068 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 161 [2020-08-22 18:15:42,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:15:42,098 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 18:15:42,099 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1621556718] [2020-08-22 18:15:42,099 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-22 18:15:42,099 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2020-08-22 18:15:42,099 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [431813547] [2020-08-22 18:15:42,100 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-08-22 18:15:42,100 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-22 18:15:42,100 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-08-22 18:15:42,101 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2020-08-22 18:15:42,101 INFO L87 Difference]: Start difference. First operand 271 states and 293 transitions. Second operand 11 states. [2020-08-22 18:15:42,750 WARN L193 SmtUtils]: Spent 296.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-08-22 18:15:43,213 WARN L193 SmtUtils]: Spent 333.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-08-22 18:15:43,623 WARN L193 SmtUtils]: Spent 324.00 ms on a formula simplification that was a NOOP. DAG size: 195 [2020-08-22 18:15:43,918 WARN L193 SmtUtils]: Spent 248.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-08-22 18:15:44,148 WARN L193 SmtUtils]: Spent 206.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-08-22 18:15:44,368 WARN L193 SmtUtils]: Spent 201.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-08-22 18:15:46,141 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-22 18:15:46,141 INFO L93 Difference]: Finished difference Result 497 states and 572 transitions. [2020-08-22 18:15:46,141 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-08-22 18:15:46,141 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 174 [2020-08-22 18:15:46,142 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-22 18:15:46,147 INFO L225 Difference]: With dead ends: 497 [2020-08-22 18:15:46,148 INFO L226 Difference]: Without dead ends: 341 [2020-08-22 18:15:46,149 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 2.1s TimeCoverageRelationStatistics Valid=127, Invalid=293, Unknown=0, NotChecked=0, Total=420 [2020-08-22 18:15:46,151 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 341 states. [2020-08-22 18:15:46,234 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 341 to 271. [2020-08-22 18:15:46,234 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 271 states. [2020-08-22 18:15:46,235 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 271 states to 271 states and 292 transitions. [2020-08-22 18:15:46,236 INFO L78 Accepts]: Start accepts. Automaton has 271 states and 292 transitions. Word has length 174 [2020-08-22 18:15:46,236 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-22 18:15:46,237 INFO L479 AbstractCegarLoop]: Abstraction has 271 states and 292 transitions. [2020-08-22 18:15:46,237 INFO L480 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-08-22 18:15:46,237 INFO L276 IsEmpty]: Start isEmpty. Operand 271 states and 292 transitions. [2020-08-22 18:15:46,239 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 188 [2020-08-22 18:15:46,240 INFO L414 BasicCegarLoop]: Found error trace [2020-08-22 18:15:46,240 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] [2020-08-22 18:15:46,240 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-08-22 18:15:46,240 INFO L427 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-22 18:15:46,240 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-22 18:15:46,241 INFO L82 PathProgramCache]: Analyzing trace with hash -59747891, now seen corresponding path program 1 times [2020-08-22 18:15:46,241 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-22 18:15:46,241 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [930091057] [2020-08-22 18:15:46,241 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-22 18:15:46,244 INFO L288 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-08-22 18:15:46,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:15:46,507 WARN L193 SmtUtils]: Spent 180.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-08-22 18:15:46,508 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 18:15:46,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:15:46,562 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2020-08-22 18:15:46,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:15:46,565 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-08-22 18:15:46,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:15:46,566 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-08-22 18:15:46,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:15:46,568 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-08-22 18:15:46,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:15:46,578 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-08-22 18:15:46,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:15:46,589 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2020-08-22 18:15:46,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:15:46,592 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2020-08-22 18:15:46,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:15:46,595 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 18:15:46,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:15:46,609 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2020-08-22 18:15:46,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:15:46,613 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-22 18:15:46,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:15:46,626 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-22 18:15:46,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:15:46,629 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 164 [2020-08-22 18:15:46,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:15:46,631 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 174 [2020-08-22 18:15:46,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:15:46,683 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 18:15:46,684 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [930091057] [2020-08-22 18:15:46,684 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-22 18:15:46,685 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-08-22 18:15:46,685 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1186071125] [2020-08-22 18:15:46,686 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-08-22 18:15:46,686 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-22 18:15:46,686 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-08-22 18:15:46,687 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2020-08-22 18:15:46,687 INFO L87 Difference]: Start difference. First operand 271 states and 292 transitions. Second operand 8 states. [2020-08-22 18:15:47,205 WARN L193 SmtUtils]: Spent 223.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-08-22 18:15:49,063 WARN L193 SmtUtils]: Spent 205.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-08-22 18:15:49,587 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-22 18:15:49,587 INFO L93 Difference]: Finished difference Result 699 states and 829 transitions. [2020-08-22 18:15:49,587 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2020-08-22 18:15:49,588 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 187 [2020-08-22 18:15:49,588 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-22 18:15:49,593 INFO L225 Difference]: With dead ends: 699 [2020-08-22 18:15:49,593 INFO L226 Difference]: Without dead ends: 543 [2020-08-22 18:15:49,595 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 38 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 94 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=138, Invalid=368, Unknown=0, NotChecked=0, Total=506 [2020-08-22 18:15:49,596 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 543 states. [2020-08-22 18:15:49,724 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 543 to 405. [2020-08-22 18:15:49,724 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 405 states. [2020-08-22 18:15:49,731 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 405 states to 405 states and 437 transitions. [2020-08-22 18:15:49,732 INFO L78 Accepts]: Start accepts. Automaton has 405 states and 437 transitions. Word has length 187 [2020-08-22 18:15:49,733 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-22 18:15:49,733 INFO L479 AbstractCegarLoop]: Abstraction has 405 states and 437 transitions. [2020-08-22 18:15:49,733 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-08-22 18:15:49,733 INFO L276 IsEmpty]: Start isEmpty. Operand 405 states and 437 transitions. [2020-08-22 18:15:49,736 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 212 [2020-08-22 18:15:49,736 INFO L414 BasicCegarLoop]: Found error trace [2020-08-22 18:15:49,736 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] [2020-08-22 18:15:49,736 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-08-22 18:15:49,736 INFO L427 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-22 18:15:49,737 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-22 18:15:49,737 INFO L82 PathProgramCache]: Analyzing trace with hash -476532751, now seen corresponding path program 1 times [2020-08-22 18:15:49,737 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-22 18:15:49,738 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [502810467] [2020-08-22 18:15:49,738 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-22 18:15:49,740 INFO L288 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-08-22 18:15:49,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:15:50,056 WARN L193 SmtUtils]: Spent 204.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-08-22 18:15:50,057 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 18:15:50,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:15:50,089 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2020-08-22 18:15:50,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:15:50,091 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-08-22 18:15:50,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:15:50,092 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-08-22 18:15:50,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:15:50,118 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-08-22 18:15:50,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:15:50,128 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-08-22 18:15:50,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:15:50,144 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2020-08-22 18:15:50,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:15:50,146 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2020-08-22 18:15:50,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:15:50,147 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 18:15:50,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:15:50,160 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2020-08-22 18:15:50,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:15:50,166 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-22 18:15:50,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:15:50,171 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-22 18:15:50,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:15:50,198 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-22 18:15:50,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:15:50,227 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-08-22 18:15:50,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:15:50,230 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 188 [2020-08-22 18:15:50,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:15:50,232 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 198 [2020-08-22 18:15:50,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:15:50,306 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 18:15:50,307 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [502810467] [2020-08-22 18:15:50,307 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-22 18:15:50,308 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2020-08-22 18:15:50,308 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [530980838] [2020-08-22 18:15:50,309 INFO L459 AbstractCegarLoop]: Interpolant automaton has 14 states [2020-08-22 18:15:50,309 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-22 18:15:50,309 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2020-08-22 18:15:50,310 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=154, Unknown=0, NotChecked=0, Total=182 [2020-08-22 18:15:50,310 INFO L87 Difference]: Start difference. First operand 405 states and 437 transitions. Second operand 14 states. [2020-08-22 18:15:50,881 WARN L193 SmtUtils]: Spent 197.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-08-22 18:15:51,119 WARN L193 SmtUtils]: Spent 212.00 ms on a formula simplification that was a NOOP. DAG size: 194 [2020-08-22 18:15:51,362 WARN L193 SmtUtils]: Spent 194.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-08-22 18:15:51,632 WARN L193 SmtUtils]: Spent 237.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-08-22 18:15:51,851 WARN L193 SmtUtils]: Spent 195.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-08-22 18:15:52,782 WARN L193 SmtUtils]: Spent 201.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-08-22 18:15:53,020 WARN L193 SmtUtils]: Spent 207.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-08-22 18:15:53,277 WARN L193 SmtUtils]: Spent 202.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-08-22 18:15:53,554 WARN L193 SmtUtils]: Spent 232.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-08-22 18:15:53,776 WARN L193 SmtUtils]: Spent 195.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-08-22 18:15:55,128 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-22 18:15:55,128 INFO L93 Difference]: Finished difference Result 838 states and 987 transitions. [2020-08-22 18:15:55,129 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2020-08-22 18:15:55,129 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 211 [2020-08-22 18:15:55,130 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-22 18:15:55,134 INFO L225 Difference]: With dead ends: 838 [2020-08-22 18:15:55,134 INFO L226 Difference]: Without dead ends: 548 [2020-08-22 18:15:55,136 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 63 GetRequests, 37 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 89 ImplicationChecksByTransitivity, 2.6s TimeCoverageRelationStatistics Valid=172, Invalid=584, Unknown=0, NotChecked=0, Total=756 [2020-08-22 18:15:55,137 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 548 states. [2020-08-22 18:15:55,300 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 548 to 411. [2020-08-22 18:15:55,301 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 411 states. [2020-08-22 18:15:55,303 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 411 states to 411 states and 443 transitions. [2020-08-22 18:15:55,303 INFO L78 Accepts]: Start accepts. Automaton has 411 states and 443 transitions. Word has length 211 [2020-08-22 18:15:55,304 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-22 18:15:55,304 INFO L479 AbstractCegarLoop]: Abstraction has 411 states and 443 transitions. [2020-08-22 18:15:55,304 INFO L480 AbstractCegarLoop]: Interpolant automaton has 14 states. [2020-08-22 18:15:55,304 INFO L276 IsEmpty]: Start isEmpty. Operand 411 states and 443 transitions. [2020-08-22 18:15:55,307 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 212 [2020-08-22 18:15:55,307 INFO L414 BasicCegarLoop]: Found error trace [2020-08-22 18:15:55,307 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] [2020-08-22 18:15:55,307 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-08-22 18:15:55,308 INFO L427 AbstractCegarLoop]: === Iteration 6 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-22 18:15:55,308 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-22 18:15:55,308 INFO L82 PathProgramCache]: Analyzing trace with hash 497337425, now seen corresponding path program 1 times [2020-08-22 18:15:55,308 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-22 18:15:55,309 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1696529953] [2020-08-22 18:15:55,309 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-22 18:15:55,311 INFO L288 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-08-22 18:15:55,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:15:55,600 WARN L193 SmtUtils]: Spent 196.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-08-22 18:15:55,601 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 18:15:55,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:15:55,636 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2020-08-22 18:15:55,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:15:55,638 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-08-22 18:15:55,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:15:55,639 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-08-22 18:15:55,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:15:55,641 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-08-22 18:15:55,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:15:55,651 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-08-22 18:15:55,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:15:55,662 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2020-08-22 18:15:55,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:15:55,664 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2020-08-22 18:15:55,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:15:55,666 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 18:15:55,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:15:55,677 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2020-08-22 18:15:55,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:15:55,682 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-22 18:15:55,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:15:55,687 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-22 18:15:55,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:15:55,690 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-22 18:15:55,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:15:55,692 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-08-22 18:15:55,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:15:55,696 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 188 [2020-08-22 18:15:55,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:15:55,698 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 198 [2020-08-22 18:15:55,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:15:55,770 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 18:15:55,771 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1696529953] [2020-08-22 18:15:55,771 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-22 18:15:55,771 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2020-08-22 18:15:55,771 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [687145217] [2020-08-22 18:15:55,772 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-08-22 18:15:55,772 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-22 18:15:55,772 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-08-22 18:15:55,773 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2020-08-22 18:15:55,773 INFO L87 Difference]: Start difference. First operand 411 states and 443 transitions. Second operand 11 states. [2020-08-22 18:15:56,232 WARN L193 SmtUtils]: Spent 199.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-08-22 18:15:57,036 WARN L193 SmtUtils]: Spent 206.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-08-22 18:15:57,259 WARN L193 SmtUtils]: Spent 205.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-08-22 18:15:58,308 WARN L193 SmtUtils]: Spent 194.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-08-22 18:15:58,528 WARN L193 SmtUtils]: Spent 201.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-08-22 18:15:58,799 WARN L193 SmtUtils]: Spent 203.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-08-22 18:15:59,299 WARN L193 SmtUtils]: Spent 200.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-08-22 18:15:59,531 WARN L193 SmtUtils]: Spent 206.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-08-22 18:15:59,753 WARN L193 SmtUtils]: Spent 200.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-08-22 18:16:00,306 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-22 18:16:00,307 INFO L93 Difference]: Finished difference Result 844 states and 982 transitions. [2020-08-22 18:16:00,311 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2020-08-22 18:16:00,312 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 211 [2020-08-22 18:16:00,312 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-22 18:16:00,315 INFO L225 Difference]: With dead ends: 844 [2020-08-22 18:16:00,316 INFO L226 Difference]: Without dead ends: 548 [2020-08-22 18:16:00,319 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 70 GetRequests, 42 SyntacticMatches, 0 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 147 ImplicationChecksByTransitivity, 2.3s TimeCoverageRelationStatistics Valid=248, Invalid=622, Unknown=0, NotChecked=0, Total=870 [2020-08-22 18:16:00,320 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 548 states. [2020-08-22 18:16:00,426 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 548 to 410. [2020-08-22 18:16:00,426 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 410 states. [2020-08-22 18:16:00,428 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 410 states to 410 states and 440 transitions. [2020-08-22 18:16:00,428 INFO L78 Accepts]: Start accepts. Automaton has 410 states and 440 transitions. Word has length 211 [2020-08-22 18:16:00,429 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-22 18:16:00,429 INFO L479 AbstractCegarLoop]: Abstraction has 410 states and 440 transitions. [2020-08-22 18:16:00,429 INFO L480 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-08-22 18:16:00,429 INFO L276 IsEmpty]: Start isEmpty. Operand 410 states and 440 transitions. [2020-08-22 18:16:00,432 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 235 [2020-08-22 18:16:00,433 INFO L414 BasicCegarLoop]: Found error trace [2020-08-22 18:16:00,433 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 18:16:00,433 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-08-22 18:16:00,433 INFO L427 AbstractCegarLoop]: === Iteration 7 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-22 18:16:00,434 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-22 18:16:00,434 INFO L82 PathProgramCache]: Analyzing trace with hash -217934529, now seen corresponding path program 1 times [2020-08-22 18:16:00,434 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-22 18:16:00,434 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1154291325] [2020-08-22 18:16:00,434 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-22 18:16:00,437 INFO L288 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-08-22 18:16:00,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:16:00,708 WARN L193 SmtUtils]: Spent 207.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-08-22 18:16:00,709 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 18:16:00,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:16:00,732 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2020-08-22 18:16:00,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:16:00,734 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-08-22 18:16:00,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:16:00,735 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-08-22 18:16:00,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:16:00,738 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-08-22 18:16:00,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:16:00,747 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-08-22 18:16:00,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:16:00,756 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2020-08-22 18:16:00,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:16:00,757 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2020-08-22 18:16:00,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:16:00,759 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 18:16:00,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:16:00,768 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2020-08-22 18:16:00,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:16:00,775 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-22 18:16:00,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:16:00,799 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-22 18:16:00,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:16:00,848 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-22 18:16:00,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:16:00,850 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-08-22 18:16:00,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:16:00,852 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-22 18:16:00,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:16:00,854 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-22 18:16:00,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:16:00,855 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2020-08-22 18:16:00,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:16:00,861 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 211 [2020-08-22 18:16:00,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:16:00,862 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 221 [2020-08-22 18:16:00,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:16:00,908 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 18:16:00,909 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1154291325] [2020-08-22 18:16:00,909 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-22 18:16:00,909 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2020-08-22 18:16:00,909 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [458204965] [2020-08-22 18:16:00,910 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-08-22 18:16:00,910 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-22 18:16:00,910 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-08-22 18:16:00,911 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2020-08-22 18:16:00,911 INFO L87 Difference]: Start difference. First operand 410 states and 440 transitions. Second operand 11 states. [2020-08-22 18:16:02,122 WARN L193 SmtUtils]: Spent 203.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-08-22 18:16:02,359 WARN L193 SmtUtils]: Spent 211.00 ms on a formula simplification that was a NOOP. DAG size: 194 [2020-08-22 18:16:02,605 WARN L193 SmtUtils]: Spent 223.00 ms on a formula simplification that was a NOOP. DAG size: 197 [2020-08-22 18:16:02,868 WARN L193 SmtUtils]: Spent 225.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-08-22 18:16:03,114 WARN L193 SmtUtils]: Spent 200.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-08-22 18:16:03,336 WARN L193 SmtUtils]: Spent 195.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-08-22 18:16:04,442 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-22 18:16:04,442 INFO L93 Difference]: Finished difference Result 847 states and 991 transitions. [2020-08-22 18:16:04,443 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-08-22 18:16:04,443 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 234 [2020-08-22 18:16:04,446 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-22 18:16:04,451 INFO L225 Difference]: With dead ends: 847 [2020-08-22 18:16:04,451 INFO L226 Difference]: Without dead ends: 552 [2020-08-22 18:16:04,453 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 41 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 44 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=121, Invalid=299, Unknown=0, NotChecked=0, Total=420 [2020-08-22 18:16:04,454 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 552 states. [2020-08-22 18:16:04,664 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 552 to 418. [2020-08-22 18:16:04,664 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 418 states. [2020-08-22 18:16:04,670 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 418 states to 418 states and 448 transitions. [2020-08-22 18:16:04,671 INFO L78 Accepts]: Start accepts. Automaton has 418 states and 448 transitions. Word has length 234 [2020-08-22 18:16:04,672 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-22 18:16:04,672 INFO L479 AbstractCegarLoop]: Abstraction has 418 states and 448 transitions. [2020-08-22 18:16:04,672 INFO L480 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-08-22 18:16:04,673 INFO L276 IsEmpty]: Start isEmpty. Operand 418 states and 448 transitions. [2020-08-22 18:16:04,678 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 235 [2020-08-22 18:16:04,678 INFO L414 BasicCegarLoop]: Found error trace [2020-08-22 18:16:04,678 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 18:16:04,678 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-08-22 18:16:04,679 INFO L427 AbstractCegarLoop]: === Iteration 8 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-22 18:16:04,679 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-22 18:16:04,679 INFO L82 PathProgramCache]: Analyzing trace with hash 1176917148, now seen corresponding path program 1 times [2020-08-22 18:16:04,679 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-22 18:16:04,682 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [649922719] [2020-08-22 18:16:04,682 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-22 18:16:04,685 INFO L288 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-08-22 18:16:04,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:16:04,966 WARN L193 SmtUtils]: Spent 187.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-08-22 18:16:04,966 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 18:16:04,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:16:05,005 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2020-08-22 18:16:05,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:16:05,006 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-08-22 18:16:05,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:16:05,007 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-08-22 18:16:05,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:16:05,009 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-08-22 18:16:05,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:16:05,019 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-08-22 18:16:05,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:16:05,027 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2020-08-22 18:16:05,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:16:05,029 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2020-08-22 18:16:05,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:16:05,031 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 18:16:05,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:16:05,040 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2020-08-22 18:16:05,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:16:05,056 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-22 18:16:05,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:16:05,069 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-22 18:16:05,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:16:05,080 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-22 18:16:05,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:16:05,089 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-08-22 18:16:05,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:16:05,092 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-22 18:16:05,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:16:05,094 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-22 18:16:05,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:16:05,095 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2020-08-22 18:16:05,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:16:05,101 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 211 [2020-08-22 18:16:05,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:16:05,102 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 221 [2020-08-22 18:16:05,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:16:05,145 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 18:16:05,145 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [649922719] [2020-08-22 18:16:05,145 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-22 18:16:05,146 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-08-22 18:16:05,146 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [718889360] [2020-08-22 18:16:05,146 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-08-22 18:16:05,146 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-22 18:16:05,146 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-08-22 18:16:05,147 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2020-08-22 18:16:05,147 INFO L87 Difference]: Start difference. First operand 418 states and 448 transitions. Second operand 8 states. [2020-08-22 18:16:05,602 WARN L193 SmtUtils]: Spent 195.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-08-22 18:16:06,135 WARN L193 SmtUtils]: Spent 194.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-08-22 18:16:08,728 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-22 18:16:08,728 INFO L93 Difference]: Finished difference Result 1183 states and 1420 transitions. [2020-08-22 18:16:08,729 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2020-08-22 18:16:08,729 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 234 [2020-08-22 18:16:08,730 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-22 18:16:08,735 INFO L225 Difference]: With dead ends: 1183 [2020-08-22 18:16:08,735 INFO L226 Difference]: Without dead ends: 880 [2020-08-22 18:16:08,738 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 75 GetRequests, 49 SyntacticMatches, 3 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 152 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=155, Invalid=445, Unknown=0, NotChecked=0, Total=600 [2020-08-22 18:16:08,740 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 880 states. [2020-08-22 18:16:08,938 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 880 to 673. [2020-08-22 18:16:08,939 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 673 states. [2020-08-22 18:16:08,941 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 673 states to 673 states and 740 transitions. [2020-08-22 18:16:08,942 INFO L78 Accepts]: Start accepts. Automaton has 673 states and 740 transitions. Word has length 234 [2020-08-22 18:16:08,942 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-22 18:16:08,942 INFO L479 AbstractCegarLoop]: Abstraction has 673 states and 740 transitions. [2020-08-22 18:16:08,942 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-08-22 18:16:08,942 INFO L276 IsEmpty]: Start isEmpty. Operand 673 states and 740 transitions. [2020-08-22 18:16:08,946 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 240 [2020-08-22 18:16:08,946 INFO L414 BasicCegarLoop]: Found error trace [2020-08-22 18:16:08,946 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 18:16:08,947 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-08-22 18:16:08,947 INFO L427 AbstractCegarLoop]: === Iteration 9 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-22 18:16:08,947 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-22 18:16:08,947 INFO L82 PathProgramCache]: Analyzing trace with hash -1214461665, now seen corresponding path program 1 times [2020-08-22 18:16:08,947 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-22 18:16:08,948 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [510233616] [2020-08-22 18:16:08,948 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-22 18:16:08,950 INFO L288 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-08-22 18:16:08,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:16:09,314 WARN L193 SmtUtils]: Spent 220.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-08-22 18:16:09,316 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 18:16:09,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:16:09,379 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2020-08-22 18:16:09,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:16:09,381 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-08-22 18:16:09,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:16:09,382 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-08-22 18:16:09,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:16:09,386 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-08-22 18:16:09,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:16:09,400 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-08-22 18:16:09,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:16:09,410 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2020-08-22 18:16:09,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:16:09,476 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2020-08-22 18:16:09,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:16:09,479 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2020-08-22 18:16:09,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:16:09,482 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 18:16:09,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:16:09,496 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 153 [2020-08-22 18:16:09,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:16:09,504 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-22 18:16:09,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:16:09,507 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-22 18:16:09,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:16:09,511 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-22 18:16:09,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:16:09,512 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-08-22 18:16:09,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:16:09,514 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-22 18:16:09,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:16:09,516 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-22 18:16:09,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:16:09,518 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2020-08-22 18:16:09,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:16:09,522 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 216 [2020-08-22 18:16:09,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:16:09,551 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 226 [2020-08-22 18:16:09,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:16:09,599 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 18:16:09,599 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [510233616] [2020-08-22 18:16:09,599 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-22 18:16:09,600 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2020-08-22 18:16:09,600 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [604960433] [2020-08-22 18:16:09,600 INFO L459 AbstractCegarLoop]: Interpolant automaton has 15 states [2020-08-22 18:16:09,600 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-22 18:16:09,601 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2020-08-22 18:16:09,601 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=177, Unknown=0, NotChecked=0, Total=210 [2020-08-22 18:16:09,601 INFO L87 Difference]: Start difference. First operand 673 states and 740 transitions. Second operand 15 states. [2020-08-22 18:16:10,310 WARN L193 SmtUtils]: Spent 402.00 ms on a formula simplification. DAG size of input: 191 DAG size of output: 189 [2020-08-22 18:16:11,084 WARN L193 SmtUtils]: Spent 221.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-08-22 18:16:12,676 WARN L193 SmtUtils]: Spent 406.00 ms on a formula simplification. DAG size of input: 193 DAG size of output: 191 [2020-08-22 18:16:13,133 WARN L193 SmtUtils]: Spent 422.00 ms on a formula simplification. DAG size of input: 195 DAG size of output: 193 [2020-08-22 18:16:13,441 WARN L193 SmtUtils]: Spent 207.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-08-22 18:16:13,696 WARN L193 SmtUtils]: Spent 221.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-08-22 18:16:14,151 WARN L193 SmtUtils]: Spent 411.00 ms on a formula simplification. DAG size of input: 194 DAG size of output: 192 [2020-08-22 18:16:14,401 WARN L193 SmtUtils]: Spent 204.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-08-22 18:16:14,680 WARN L193 SmtUtils]: Spent 211.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-08-22 18:16:14,921 WARN L193 SmtUtils]: Spent 205.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-08-22 18:16:16,841 WARN L193 SmtUtils]: Spent 193.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-08-22 18:16:17,059 WARN L193 SmtUtils]: Spent 196.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-08-22 18:16:17,300 WARN L193 SmtUtils]: Spent 193.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-08-22 18:16:17,836 WARN L193 SmtUtils]: Spent 385.00 ms on a formula simplification. DAG size of input: 190 DAG size of output: 189 [2020-08-22 18:16:19,164 WARN L193 SmtUtils]: Spent 399.00 ms on a formula simplification. DAG size of input: 192 DAG size of output: 191 [2020-08-22 18:16:19,618 WARN L193 SmtUtils]: Spent 410.00 ms on a formula simplification. DAG size of input: 194 DAG size of output: 193 [2020-08-22 18:16:20,090 WARN L193 SmtUtils]: Spent 398.00 ms on a formula simplification. DAG size of input: 193 DAG size of output: 192 [2020-08-22 18:16:20,830 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-22 18:16:20,830 INFO L93 Difference]: Finished difference Result 2086 states and 2498 transitions. [2020-08-22 18:16:20,837 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 52 states. [2020-08-22 18:16:20,837 INFO L78 Accepts]: Start accepts. Automaton has 15 states. Word has length 239 [2020-08-22 18:16:20,838 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-22 18:16:20,846 INFO L225 Difference]: With dead ends: 2086 [2020-08-22 18:16:20,846 INFO L226 Difference]: Without dead ends: 1635 [2020-08-22 18:16:20,849 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 110 GetRequests, 51 SyntacticMatches, 0 SemanticMatches, 59 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1111 ImplicationChecksByTransitivity, 6.2s TimeCoverageRelationStatistics Valid=754, Invalid=2906, Unknown=0, NotChecked=0, Total=3660 [2020-08-22 18:16:20,851 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1635 states. [2020-08-22 18:16:21,230 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1635 to 1194. [2020-08-22 18:16:21,230 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1194 states. [2020-08-22 18:16:21,235 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1194 states to 1194 states and 1303 transitions. [2020-08-22 18:16:21,235 INFO L78 Accepts]: Start accepts. Automaton has 1194 states and 1303 transitions. Word has length 239 [2020-08-22 18:16:21,236 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-22 18:16:21,236 INFO L479 AbstractCegarLoop]: Abstraction has 1194 states and 1303 transitions. [2020-08-22 18:16:21,236 INFO L480 AbstractCegarLoop]: Interpolant automaton has 15 states. [2020-08-22 18:16:21,236 INFO L276 IsEmpty]: Start isEmpty. Operand 1194 states and 1303 transitions. [2020-08-22 18:16:21,239 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 326 [2020-08-22 18:16:21,239 INFO L414 BasicCegarLoop]: Found error trace [2020-08-22 18:16:21,239 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 18:16:21,239 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-08-22 18:16:21,240 INFO L427 AbstractCegarLoop]: === Iteration 10 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-22 18:16:21,240 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-22 18:16:21,240 INFO L82 PathProgramCache]: Analyzing trace with hash 2117034326, now seen corresponding path program 1 times [2020-08-22 18:16:21,240 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-22 18:16:21,240 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [150630923] [2020-08-22 18:16:21,241 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-22 18:16:21,297 INFO L288 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-08-22 18:16:21,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:16:21,623 WARN L193 SmtUtils]: Spent 192.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-08-22 18:16:21,623 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 18:16:21,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:16:21,670 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2020-08-22 18:16:21,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:16:21,672 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-08-22 18:16:21,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:16:21,676 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-08-22 18:16:21,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:16:21,702 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-08-22 18:16:21,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:16:21,713 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-08-22 18:16:21,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:16:21,724 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2020-08-22 18:16:21,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:16:21,738 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2020-08-22 18:16:21,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:16:21,759 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 138 [2020-08-22 18:16:21,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:16:21,791 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 18:16:21,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:16:21,793 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 18:16:21,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:16:21,807 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2020-08-22 18:16:21,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:16:21,815 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-22 18:16:21,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:16:21,823 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-22 18:16:21,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:16:21,825 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-22 18:16:21,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:16:21,826 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-08-22 18:16:21,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:16:21,829 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-22 18:16:21,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:16:21,831 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-22 18:16:21,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:16:21,832 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2020-08-22 18:16:21,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:16:21,841 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2020-08-22 18:16:21,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:16:21,844 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-22 18:16:21,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:16:21,849 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 244 [2020-08-22 18:16:21,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:16:21,850 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 249 [2020-08-22 18:16:21,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:16:21,917 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 18:16:21,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:16:22,000 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 262 [2020-08-22 18:16:22,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:16:22,003 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 268 [2020-08-22 18:16:22,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:16:22,008 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-22 18:16:22,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:16:22,009 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-22 18:16:22,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:16:22,011 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2020-08-22 18:16:22,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:16:22,013 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-22 18:16:22,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:16:22,015 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 302 [2020-08-22 18:16:22,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:16:22,016 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 312 [2020-08-22 18:16:22,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:16:22,146 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 18:16:22,147 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [150630923] [2020-08-22 18:16:22,147 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-22 18:16:22,147 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2020-08-22 18:16:22,147 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1994504013] [2020-08-22 18:16:22,148 INFO L459 AbstractCegarLoop]: Interpolant automaton has 19 states [2020-08-22 18:16:22,148 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-22 18:16:22,149 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2020-08-22 18:16:22,149 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=297, Unknown=0, NotChecked=0, Total=342 [2020-08-22 18:16:22,149 INFO L87 Difference]: Start difference. First operand 1194 states and 1303 transitions. Second operand 19 states. [2020-08-22 18:16:22,780 WARN L193 SmtUtils]: Spent 205.00 ms on a formula simplification that was a NOOP. DAG size: 194 [2020-08-22 18:16:23,117 WARN L193 SmtUtils]: Spent 194.00 ms on a formula simplification that was a NOOP. DAG size: 197 [2020-08-22 18:16:23,403 WARN L193 SmtUtils]: Spent 249.00 ms on a formula simplification that was a NOOP. DAG size: 200 [2020-08-22 18:16:23,682 WARN L193 SmtUtils]: Spent 230.00 ms on a formula simplification that was a NOOP. DAG size: 196 [2020-08-22 18:16:23,953 WARN L193 SmtUtils]: Spent 224.00 ms on a formula simplification that was a NOOP. DAG size: 198 [2020-08-22 18:16:24,199 WARN L193 SmtUtils]: Spent 213.00 ms on a formula simplification that was a NOOP. DAG size: 196 [2020-08-22 18:16:25,158 WARN L193 SmtUtils]: Spent 245.00 ms on a formula simplification that was a NOOP. DAG size: 197 [2020-08-22 18:16:25,424 WARN L193 SmtUtils]: Spent 234.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2020-08-22 18:16:25,668 WARN L193 SmtUtils]: Spent 201.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-08-22 18:16:26,169 WARN L193 SmtUtils]: Spent 265.00 ms on a formula simplification that was a NOOP. DAG size: 211 [2020-08-22 18:16:27,160 WARN L193 SmtUtils]: Spent 230.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2020-08-22 18:16:27,465 WARN L193 SmtUtils]: Spent 249.00 ms on a formula simplification that was a NOOP. DAG size: 207 [2020-08-22 18:16:28,327 WARN L193 SmtUtils]: Spent 224.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-08-22 18:16:29,192 WARN L193 SmtUtils]: Spent 226.00 ms on a formula simplification that was a NOOP. DAG size: 198 [2020-08-22 18:16:29,964 WARN L193 SmtUtils]: Spent 407.00 ms on a formula simplification. DAG size of input: 198 DAG size of output: 191 [2020-08-22 18:16:30,434 WARN L193 SmtUtils]: Spent 433.00 ms on a formula simplification. DAG size of input: 203 DAG size of output: 193 [2020-08-22 18:16:30,889 WARN L193 SmtUtils]: Spent 404.00 ms on a formula simplification. DAG size of input: 195 DAG size of output: 193 [2020-08-22 18:16:31,260 WARN L193 SmtUtils]: Spent 232.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-08-22 18:16:31,948 WARN L193 SmtUtils]: Spent 197.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-08-22 18:16:32,508 WARN L193 SmtUtils]: Spent 232.00 ms on a formula simplification that was a NOOP. DAG size: 199 [2020-08-22 18:16:32,830 WARN L193 SmtUtils]: Spent 251.00 ms on a formula simplification that was a NOOP. DAG size: 204 [2020-08-22 18:16:33,438 WARN L193 SmtUtils]: Spent 436.00 ms on a formula simplification. DAG size of input: 200 DAG size of output: 194 [2020-08-22 18:16:33,959 WARN L193 SmtUtils]: Spent 448.00 ms on a formula simplification. DAG size of input: 205 DAG size of output: 196 [2020-08-22 18:16:35,267 WARN L193 SmtUtils]: Spent 419.00 ms on a formula simplification. DAG size of input: 197 DAG size of output: 195 [2020-08-22 18:16:35,524 WARN L193 SmtUtils]: Spent 209.00 ms on a formula simplification that was a NOOP. DAG size: 195 [2020-08-22 18:16:36,897 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-22 18:16:36,897 INFO L93 Difference]: Finished difference Result 2885 states and 3339 transitions. [2020-08-22 18:16:36,898 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 70 states. [2020-08-22 18:16:36,898 INFO L78 Accepts]: Start accepts. Automaton has 19 states. Word has length 325 [2020-08-22 18:16:36,899 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-22 18:16:36,909 INFO L225 Difference]: With dead ends: 2885 [2020-08-22 18:16:36,909 INFO L226 Difference]: Without dead ends: 1908 [2020-08-22 18:16:36,914 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 166 GetRequests, 86 SyntacticMatches, 0 SemanticMatches, 80 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1916 ImplicationChecksByTransitivity, 8.8s TimeCoverageRelationStatistics Valid=1278, Invalid=5364, Unknown=0, NotChecked=0, Total=6642 [2020-08-22 18:16:36,916 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1908 states. [2020-08-22 18:16:37,704 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1908 to 1425. [2020-08-22 18:16:37,704 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1425 states. [2020-08-22 18:16:37,709 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1425 states to 1425 states and 1562 transitions. [2020-08-22 18:16:37,710 INFO L78 Accepts]: Start accepts. Automaton has 1425 states and 1562 transitions. Word has length 325 [2020-08-22 18:16:37,711 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-22 18:16:37,711 INFO L479 AbstractCegarLoop]: Abstraction has 1425 states and 1562 transitions. [2020-08-22 18:16:37,711 INFO L480 AbstractCegarLoop]: Interpolant automaton has 19 states. [2020-08-22 18:16:37,711 INFO L276 IsEmpty]: Start isEmpty. Operand 1425 states and 1562 transitions. [2020-08-22 18:16:37,717 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 518 [2020-08-22 18:16:37,717 INFO L414 BasicCegarLoop]: Found error trace [2020-08-22 18:16:37,718 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 18:16:37,718 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-08-22 18:16:37,718 INFO L427 AbstractCegarLoop]: === Iteration 11 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-22 18:16:37,719 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-22 18:16:37,719 INFO L82 PathProgramCache]: Analyzing trace with hash -830990222, now seen corresponding path program 1 times [2020-08-22 18:16:37,719 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-22 18:16:37,720 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [353606173] [2020-08-22 18:16:37,721 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-22 18:16:37,754 INFO L288 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-08-22 18:16:37,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:16:38,060 WARN L193 SmtUtils]: Spent 186.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-08-22 18:16:38,061 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 18:16:38,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:16:38,091 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2020-08-22 18:16:38,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:16:38,094 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-08-22 18:16:38,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:16:38,095 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-08-22 18:16:38,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:16:38,096 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-08-22 18:16:38,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:16:38,102 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-08-22 18:16:38,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:16:38,111 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2020-08-22 18:16:38,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:16:38,121 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2020-08-22 18:16:38,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:16:38,134 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 138 [2020-08-22 18:16:38,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:16:38,145 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 18:16:38,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:16:38,147 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 18:16:38,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:16:38,158 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2020-08-22 18:16:38,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:16:38,164 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-22 18:16:38,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:16:38,167 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-22 18:16:38,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:16:38,170 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-22 18:16:38,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:16:38,171 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-08-22 18:16:38,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:16:38,173 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-22 18:16:38,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:16:38,175 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-22 18:16:38,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:16:38,176 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2020-08-22 18:16:38,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:16:38,180 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2020-08-22 18:16:38,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:16:38,258 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-22 18:16:38,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:16:38,298 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 244 [2020-08-22 18:16:38,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:16:38,299 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 248 [2020-08-22 18:16:38,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:16:38,340 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 18:16:38,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:16:38,342 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 18:16:38,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:16:38,343 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2020-08-22 18:16:38,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:16:38,356 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2020-08-22 18:16:38,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:16:38,360 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-22 18:16:38,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:16:38,362 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-22 18:16:38,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:16:38,363 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2020-08-22 18:16:38,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:16:38,364 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-22 18:16:38,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:16:38,365 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2020-08-22 18:16:38,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:16:38,419 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-22 18:16:38,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:16:38,427 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 330 [2020-08-22 18:16:38,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:16:38,430 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 334 [2020-08-22 18:16:38,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:16:38,437 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 18:16:38,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:16:38,439 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 18:16:38,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:16:38,440 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2020-08-22 18:16:38,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:16:38,441 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2020-08-22 18:16:38,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:16:38,444 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-22 18:16:38,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:16:38,445 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-22 18:16:38,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:16:38,446 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2020-08-22 18:16:38,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:16:38,448 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2020-08-22 18:16:38,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:16:38,449 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-22 18:16:38,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:16:38,452 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 412 [2020-08-22 18:16:38,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:16:38,453 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 417 [2020-08-22 18:16:38,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:16:38,454 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 18:16:38,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:16:38,455 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 431 [2020-08-22 18:16:38,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:16:38,463 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-22 18:16:38,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:16:38,467 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-22 18:16:38,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:16:38,469 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-22 18:16:38,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:16:38,470 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-08-22 18:16:38,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:16:38,472 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-22 18:16:38,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:16:38,475 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-22 18:16:38,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:16:38,477 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2020-08-22 18:16:38,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:16:38,481 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 494 [2020-08-22 18:16:38,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:16:38,484 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 504 [2020-08-22 18:16:38,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:16:38,828 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 18:16:38,829 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [353606173] [2020-08-22 18:16:38,830 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-22 18:16:38,830 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2020-08-22 18:16:38,830 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [4555192] [2020-08-22 18:16:38,832 INFO L459 AbstractCegarLoop]: Interpolant automaton has 17 states [2020-08-22 18:16:38,832 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-22 18:16:38,833 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2020-08-22 18:16:38,833 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=227, Unknown=0, NotChecked=0, Total=272 [2020-08-22 18:16:38,833 INFO L87 Difference]: Start difference. First operand 1425 states and 1562 transitions. Second operand 17 states. [2020-08-22 18:16:40,554 WARN L193 SmtUtils]: Spent 209.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-08-22 18:16:40,807 WARN L193 SmtUtils]: Spent 223.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-08-22 18:16:41,068 WARN L193 SmtUtils]: Spent 204.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-08-22 18:16:41,371 WARN L193 SmtUtils]: Spent 217.00 ms on a formula simplification that was a NOOP. DAG size: 195 [2020-08-22 18:16:41,607 WARN L193 SmtUtils]: Spent 205.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-08-22 18:16:41,838 WARN L193 SmtUtils]: Spent 197.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-08-22 18:16:43,713 WARN L193 SmtUtils]: Spent 215.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-08-22 18:16:43,973 WARN L193 SmtUtils]: Spent 226.00 ms on a formula simplification that was a NOOP. DAG size: 195 [2020-08-22 18:16:45,901 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-22 18:16:45,901 INFO L93 Difference]: Finished difference Result 4194 states and 4958 transitions. [2020-08-22 18:16:45,902 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2020-08-22 18:16:45,902 INFO L78 Accepts]: Start accepts. Automaton has 17 states. Word has length 517 [2020-08-22 18:16:45,903 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-22 18:16:45,918 INFO L225 Difference]: With dead ends: 4194 [2020-08-22 18:16:45,919 INFO L226 Difference]: Without dead ends: 2689 [2020-08-22 18:16:45,924 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 173 GetRequests, 124 SyntacticMatches, 4 SemanticMatches, 45 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 492 ImplicationChecksByTransitivity, 2.6s TimeCoverageRelationStatistics Valid=486, Invalid=1676, Unknown=0, NotChecked=0, Total=2162 [2020-08-22 18:16:45,926 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2689 states. [2020-08-22 18:16:46,602 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2689 to 1847. [2020-08-22 18:16:46,602 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1847 states. [2020-08-22 18:16:46,607 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1847 states to 1847 states and 2057 transitions. [2020-08-22 18:16:46,607 INFO L78 Accepts]: Start accepts. Automaton has 1847 states and 2057 transitions. Word has length 517 [2020-08-22 18:16:46,608 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-22 18:16:46,608 INFO L479 AbstractCegarLoop]: Abstraction has 1847 states and 2057 transitions. [2020-08-22 18:16:46,608 INFO L480 AbstractCegarLoop]: Interpolant automaton has 17 states. [2020-08-22 18:16:46,608 INFO L276 IsEmpty]: Start isEmpty. Operand 1847 states and 2057 transitions. [2020-08-22 18:16:46,614 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 532 [2020-08-22 18:16:46,614 INFO L414 BasicCegarLoop]: Found error trace [2020-08-22 18:16:46,614 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 18:16:46,614 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-08-22 18:16:46,615 INFO L427 AbstractCegarLoop]: === Iteration 12 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-22 18:16:46,615 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-22 18:16:46,615 INFO L82 PathProgramCache]: Analyzing trace with hash -1343403747, now seen corresponding path program 1 times [2020-08-22 18:16:46,615 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-22 18:16:46,615 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2084286912] [2020-08-22 18:16:46,616 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-22 18:16:46,636 INFO L288 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-08-22 18:16:46,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:16:46,926 WARN L193 SmtUtils]: Spent 184.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-08-22 18:16:46,929 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 18:16:46,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:16:46,948 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2020-08-22 18:16:46,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:16:46,949 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-08-22 18:16:46,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:16:46,950 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-08-22 18:16:46,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:16:46,988 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-08-22 18:16:46,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:16:46,998 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-08-22 18:16:46,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:16:47,009 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2020-08-22 18:16:47,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:16:47,026 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2020-08-22 18:16:47,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:16:47,049 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 138 [2020-08-22 18:16:47,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:16:47,071 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 18:16:47,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:16:47,073 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 18:16:47,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:16:47,090 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2020-08-22 18:16:47,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:16:47,097 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-22 18:16:47,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:16:47,102 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-22 18:16:47,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:16:47,104 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-22 18:16:47,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:16:47,105 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-08-22 18:16:47,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:16:47,109 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-22 18:16:47,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:16:47,111 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-22 18:16:47,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:16:47,112 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2020-08-22 18:16:47,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:16:47,118 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2020-08-22 18:16:47,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:16:47,120 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-22 18:16:47,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:16:47,126 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 244 [2020-08-22 18:16:47,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:16:47,127 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 248 [2020-08-22 18:16:47,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:16:47,134 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 18:16:47,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:16:47,135 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 18:16:47,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:16:47,136 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2020-08-22 18:16:47,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:16:47,138 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2020-08-22 18:16:47,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:16:47,140 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-22 18:16:47,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:16:47,142 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-22 18:16:47,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:16:47,143 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2020-08-22 18:16:47,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:16:47,144 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-22 18:16:47,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:16:47,145 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2020-08-22 18:16:47,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:16:47,186 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-22 18:16:47,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:16:47,188 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-08-22 18:16:47,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:16:47,225 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 340 [2020-08-22 18:16:47,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:16:47,227 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 344 [2020-08-22 18:16:47,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:16:47,232 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 18:16:47,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:16:47,233 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 18:16:47,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:16:47,234 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2020-08-22 18:16:47,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:16:47,235 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2020-08-22 18:16:47,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:16:47,237 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-22 18:16:47,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:16:47,238 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-22 18:16:47,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:16:47,239 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2020-08-22 18:16:47,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:16:47,241 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2020-08-22 18:16:47,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:16:47,242 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-22 18:16:47,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:16:47,245 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 414 [2020-08-22 18:16:47,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:16:47,246 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 426 [2020-08-22 18:16:47,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:16:47,247 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 431 [2020-08-22 18:16:47,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:16:47,249 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 18:16:47,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:16:47,250 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 445 [2020-08-22 18:16:47,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:16:47,260 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-22 18:16:47,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:16:47,263 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-22 18:16:47,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:16:47,264 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-22 18:16:47,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:16:47,267 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-08-22 18:16:47,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:16:47,269 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-22 18:16:47,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:16:47,270 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-22 18:16:47,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:16:47,275 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2020-08-22 18:16:47,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:16:47,282 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 508 [2020-08-22 18:16:47,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:16:47,284 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 518 [2020-08-22 18:16:47,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:16:47,588 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 18:16:47,588 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2084286912] [2020-08-22 18:16:47,589 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-22 18:16:47,589 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2020-08-22 18:16:47,589 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [238610635] [2020-08-22 18:16:47,591 INFO L459 AbstractCegarLoop]: Interpolant automaton has 19 states [2020-08-22 18:16:47,591 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-22 18:16:47,591 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2020-08-22 18:16:47,592 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=44, Invalid=298, Unknown=0, NotChecked=0, Total=342 [2020-08-22 18:16:47,592 INFO L87 Difference]: Start difference. First operand 1847 states and 2057 transitions. Second operand 19 states. [2020-08-22 18:16:48,080 WARN L193 SmtUtils]: Spent 195.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-08-22 18:16:48,420 WARN L193 SmtUtils]: Spent 207.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-08-22 18:16:48,665 WARN L193 SmtUtils]: Spent 219.00 ms on a formula simplification that was a NOOP. DAG size: 196 [2020-08-22 18:16:48,913 WARN L193 SmtUtils]: Spent 201.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-08-22 18:16:49,157 WARN L193 SmtUtils]: Spent 207.00 ms on a formula simplification that was a NOOP. DAG size: 194 [2020-08-22 18:16:49,389 WARN L193 SmtUtils]: Spent 202.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-08-22 18:16:50,372 WARN L193 SmtUtils]: Spent 264.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-08-22 18:16:50,612 WARN L193 SmtUtils]: Spent 207.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-08-22 18:16:51,632 WARN L193 SmtUtils]: Spent 201.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-08-22 18:16:51,951 WARN L193 SmtUtils]: Spent 206.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-08-22 18:16:52,267 WARN L193 SmtUtils]: Spent 200.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-08-22 18:16:52,716 WARN L193 SmtUtils]: Spent 198.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-08-22 18:16:53,687 WARN L193 SmtUtils]: Spent 203.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-08-22 18:16:54,001 WARN L193 SmtUtils]: Spent 280.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-08-22 18:16:54,866 WARN L193 SmtUtils]: Spent 205.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-08-22 18:16:55,131 WARN L193 SmtUtils]: Spent 207.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-08-22 18:16:55,368 WARN L193 SmtUtils]: Spent 202.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-08-22 18:16:56,812 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-22 18:16:56,813 INFO L93 Difference]: Finished difference Result 3884 states and 4538 transitions. [2020-08-22 18:16:56,813 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 44 states. [2020-08-22 18:16:56,813 INFO L78 Accepts]: Start accepts. Automaton has 19 states. Word has length 531 [2020-08-22 18:16:56,814 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-22 18:16:56,825 INFO L225 Difference]: With dead ends: 3884 [2020-08-22 18:16:56,825 INFO L226 Difference]: Without dead ends: 2290 [2020-08-22 18:16:56,831 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 192 GetRequests, 136 SyntacticMatches, 0 SemanticMatches, 56 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 797 ImplicationChecksByTransitivity, 4.7s TimeCoverageRelationStatistics Valid=665, Invalid=2641, Unknown=0, NotChecked=0, Total=3306 [2020-08-22 18:16:56,833 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2290 states. [2020-08-22 18:16:57,452 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2290 to 1775. [2020-08-22 18:16:57,452 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1775 states. [2020-08-22 18:16:57,457 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1775 states to 1775 states and 1958 transitions. [2020-08-22 18:16:57,458 INFO L78 Accepts]: Start accepts. Automaton has 1775 states and 1958 transitions. Word has length 531 [2020-08-22 18:16:57,459 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-22 18:16:57,459 INFO L479 AbstractCegarLoop]: Abstraction has 1775 states and 1958 transitions. [2020-08-22 18:16:57,459 INFO L480 AbstractCegarLoop]: Interpolant automaton has 19 states. [2020-08-22 18:16:57,459 INFO L276 IsEmpty]: Start isEmpty. Operand 1775 states and 1958 transitions. [2020-08-22 18:16:57,465 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 533 [2020-08-22 18:16:57,465 INFO L414 BasicCegarLoop]: Found error trace [2020-08-22 18:16:57,466 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 18:16:57,466 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2020-08-22 18:16:57,466 INFO L427 AbstractCegarLoop]: === Iteration 13 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-22 18:16:57,466 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-22 18:16:57,467 INFO L82 PathProgramCache]: Analyzing trace with hash -1677407297, now seen corresponding path program 1 times [2020-08-22 18:16:57,467 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-22 18:16:57,467 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [139590055] [2020-08-22 18:16:57,467 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-22 18:16:57,487 INFO L288 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-08-22 18:16:57,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:16:57,748 WARN L193 SmtUtils]: Spent 161.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-08-22 18:16:57,749 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 18:16:57,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:16:57,776 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2020-08-22 18:16:57,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:16:57,778 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-08-22 18:16:57,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:16:57,779 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-08-22 18:16:57,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:16:57,780 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-08-22 18:16:57,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:16:57,797 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-08-22 18:16:57,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:16:57,805 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2020-08-22 18:16:57,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:16:57,815 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2020-08-22 18:16:57,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:16:57,831 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 138 [2020-08-22 18:16:57,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:16:57,839 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 18:16:57,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:16:57,841 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 18:16:57,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:16:57,852 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2020-08-22 18:16:57,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:16:57,856 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-22 18:16:57,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:16:57,859 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-22 18:16:57,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:16:57,861 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-22 18:16:57,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:16:57,862 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-08-22 18:16:57,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:16:57,863 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-22 18:16:57,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:16:57,865 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-22 18:16:57,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:16:57,866 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2020-08-22 18:16:57,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:16:57,870 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2020-08-22 18:16:57,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:16:57,871 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-22 18:16:57,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:16:57,876 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 244 [2020-08-22 18:16:57,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:16:57,877 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 248 [2020-08-22 18:16:57,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:16:57,882 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 18:16:57,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:16:57,883 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 18:16:57,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:16:57,885 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2020-08-22 18:16:57,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:16:57,886 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2020-08-22 18:16:57,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:16:57,887 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-22 18:16:57,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:16:57,888 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-22 18:16:57,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:16:57,889 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2020-08-22 18:16:57,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:16:57,890 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-22 18:16:57,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:16:57,891 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2020-08-22 18:16:57,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:16:57,893 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-22 18:16:57,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:16:57,895 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-08-22 18:16:57,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:16:57,899 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 341 [2020-08-22 18:16:57,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:16:57,900 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 345 [2020-08-22 18:16:57,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:16:57,915 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 18:16:57,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:16:57,917 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 18:16:57,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:16:57,918 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2020-08-22 18:16:57,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:16:57,919 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2020-08-22 18:16:57,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:16:57,985 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-22 18:16:57,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:16:58,038 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-22 18:16:58,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:16:58,081 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2020-08-22 18:16:58,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:16:58,084 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2020-08-22 18:16:58,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:16:58,085 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-22 18:16:58,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:16:58,089 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 415 [2020-08-22 18:16:58,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:16:58,090 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 427 [2020-08-22 18:16:58,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:16:58,091 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 432 [2020-08-22 18:16:58,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:16:58,092 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 18:16:58,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:16:58,093 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 446 [2020-08-22 18:16:58,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:16:58,097 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-22 18:16:58,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:16:58,099 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-22 18:16:58,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:16:58,101 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-22 18:16:58,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:16:58,102 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-08-22 18:16:58,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:16:58,104 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-22 18:16:58,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:16:58,105 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-22 18:16:58,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:16:58,106 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2020-08-22 18:16:58,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:16:58,110 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 509 [2020-08-22 18:16:58,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:16:58,111 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 519 [2020-08-22 18:16:58,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:16:58,321 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 18:16:58,321 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [139590055] [2020-08-22 18:16:58,321 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-22 18:16:58,321 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2020-08-22 18:16:58,322 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [64660790] [2020-08-22 18:16:58,322 INFO L459 AbstractCegarLoop]: Interpolant automaton has 17 states [2020-08-22 18:16:58,323 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-22 18:16:58,323 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2020-08-22 18:16:58,323 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=233, Unknown=0, NotChecked=0, Total=272 [2020-08-22 18:16:58,323 INFO L87 Difference]: Start difference. First operand 1775 states and 1958 transitions. Second operand 17 states. [2020-08-22 18:16:58,829 WARN L193 SmtUtils]: Spent 195.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-08-22 18:16:59,807 WARN L193 SmtUtils]: Spent 195.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-08-22 18:17:01,379 WARN L193 SmtUtils]: Spent 212.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-08-22 18:17:01,663 WARN L193 SmtUtils]: Spent 223.00 ms on a formula simplification that was a NOOP. DAG size: 195 [2020-08-22 18:17:02,039 WARN L193 SmtUtils]: Spent 280.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-08-22 18:17:02,345 WARN L193 SmtUtils]: Spent 217.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-08-22 18:17:02,614 WARN L193 SmtUtils]: Spent 237.00 ms on a formula simplification that was a NOOP. DAG size: 195 [2020-08-22 18:17:02,906 WARN L193 SmtUtils]: Spent 242.00 ms on a formula simplification that was a NOOP. DAG size: 196 [2020-08-22 18:17:03,146 WARN L193 SmtUtils]: Spent 211.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-08-22 18:17:03,421 WARN L193 SmtUtils]: Spent 224.00 ms on a formula simplification that was a NOOP. DAG size: 195 [2020-08-22 18:17:03,691 WARN L193 SmtUtils]: Spent 216.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-08-22 18:17:04,027 WARN L193 SmtUtils]: Spent 230.00 ms on a formula simplification that was a NOOP. DAG size: 196 [2020-08-22 18:17:04,288 WARN L193 SmtUtils]: Spent 216.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-08-22 18:17:04,563 WARN L193 SmtUtils]: Spent 230.00 ms on a formula simplification that was a NOOP. DAG size: 196 [2020-08-22 18:17:06,439 WARN L193 SmtUtils]: Spent 209.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-08-22 18:17:06,925 WARN L193 SmtUtils]: Spent 447.00 ms on a formula simplification. DAG size of input: 201 DAG size of output: 195 [2020-08-22 18:17:07,381 WARN L193 SmtUtils]: Spent 424.00 ms on a formula simplification. DAG size of input: 198 DAG size of output: 192 [2020-08-22 18:17:07,657 WARN L193 SmtUtils]: Spent 214.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-08-22 18:17:07,949 WARN L193 SmtUtils]: Spent 243.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2020-08-22 18:17:08,220 WARN L193 SmtUtils]: Spent 231.00 ms on a formula simplification that was a NOOP. DAG size: 199 [2020-08-22 18:17:10,068 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-22 18:17:10,068 INFO L93 Difference]: Finished difference Result 5731 states and 6740 transitions. [2020-08-22 18:17:10,069 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 51 states. [2020-08-22 18:17:10,069 INFO L78 Accepts]: Start accepts. Automaton has 17 states. Word has length 532 [2020-08-22 18:17:10,070 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-22 18:17:10,090 INFO L225 Difference]: With dead ends: 5731 [2020-08-22 18:17:10,090 INFO L226 Difference]: Without dead ends: 4084 [2020-08-22 18:17:10,098 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 192 GetRequests, 130 SyntacticMatches, 1 SemanticMatches, 61 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1059 ImplicationChecksByTransitivity, 6.1s TimeCoverageRelationStatistics Valid=783, Invalid=3123, Unknown=0, NotChecked=0, Total=3906 [2020-08-22 18:17:10,102 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4084 states. [2020-08-22 18:17:11,501 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4084 to 3192. [2020-08-22 18:17:11,501 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3192 states. [2020-08-22 18:17:11,505 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3192 states to 3192 states and 3489 transitions. [2020-08-22 18:17:11,506 INFO L78 Accepts]: Start accepts. Automaton has 3192 states and 3489 transitions. Word has length 532 [2020-08-22 18:17:11,507 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-22 18:17:11,507 INFO L479 AbstractCegarLoop]: Abstraction has 3192 states and 3489 transitions. [2020-08-22 18:17:11,507 INFO L480 AbstractCegarLoop]: Interpolant automaton has 17 states. [2020-08-22 18:17:11,507 INFO L276 IsEmpty]: Start isEmpty. Operand 3192 states and 3489 transitions. [2020-08-22 18:17:11,517 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 534 [2020-08-22 18:17:11,517 INFO L414 BasicCegarLoop]: Found error trace [2020-08-22 18:17:11,518 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, 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, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-22 18:17:11,518 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2020-08-22 18:17:11,518 INFO L427 AbstractCegarLoop]: === Iteration 14 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-22 18:17:11,518 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-22 18:17:11,519 INFO L82 PathProgramCache]: Analyzing trace with hash -822119102, now seen corresponding path program 1 times [2020-08-22 18:17:11,519 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-22 18:17:11,519 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2102680944] [2020-08-22 18:17:11,519 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-22 18:17:11,534 INFO L288 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-08-22 18:17:11,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:17:11,814 WARN L193 SmtUtils]: Spent 188.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-08-22 18:17:11,815 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 18:17:11,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:17:11,830 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2020-08-22 18:17:11,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:17:11,831 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-08-22 18:17:11,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:17:11,831 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-08-22 18:17:11,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:17:11,859 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-08-22 18:17:11,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:17:11,869 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-08-22 18:17:11,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:17:11,883 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2020-08-22 18:17:11,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:17:11,895 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2020-08-22 18:17:11,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:17:11,922 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2020-08-22 18:17:11,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:17:11,942 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2020-08-22 18:17:11,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:17:11,965 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 18:17:11,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:17:11,967 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 18:17:11,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:17:11,983 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2020-08-22 18:17:11,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:17:12,008 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-22 18:17:12,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:17:12,033 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-22 18:17:12,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:17:12,036 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-22 18:17:12,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:17:12,037 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-08-22 18:17:12,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:17:12,130 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-22 18:17:12,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:17:12,199 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-22 18:17:12,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:17:12,252 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2020-08-22 18:17:12,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:17:12,260 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2020-08-22 18:17:12,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:17:12,262 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-22 18:17:12,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:17:12,268 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 249 [2020-08-22 18:17:12,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:17:12,269 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 253 [2020-08-22 18:17:12,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:17:12,274 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 18:17:12,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:17:12,275 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 18:17:12,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:17:12,276 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2020-08-22 18:17:12,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:17:12,277 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2020-08-22 18:17:12,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:17:12,279 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-22 18:17:12,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:17:12,280 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-22 18:17:12,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:17:12,281 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2020-08-22 18:17:12,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:17:12,282 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-22 18:17:12,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:17:12,283 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2020-08-22 18:17:12,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:17:12,285 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-22 18:17:12,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:17:12,286 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-08-22 18:17:12,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:17:12,290 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 346 [2020-08-22 18:17:12,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:17:12,291 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 350 [2020-08-22 18:17:12,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:17:12,296 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 18:17:12,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:17:12,297 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 18:17:12,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:17:12,298 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2020-08-22 18:17:12,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:17:12,299 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2020-08-22 18:17:12,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:17:12,301 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-22 18:17:12,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:17:12,302 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-22 18:17:12,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:17:12,303 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2020-08-22 18:17:12,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:17:12,304 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2020-08-22 18:17:12,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:17:12,306 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-22 18:17:12,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:17:12,308 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 428 [2020-08-22 18:17:12,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:17:12,309 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 433 [2020-08-22 18:17:12,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:17:12,311 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 18:17:12,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:17:12,312 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 447 [2020-08-22 18:17:12,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:17:12,317 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-22 18:17:12,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:17:12,320 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-22 18:17:12,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:17:12,322 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-22 18:17:12,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:17:12,323 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-08-22 18:17:12,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:17:12,325 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-22 18:17:12,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:17:12,326 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-22 18:17:12,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:17:12,328 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2020-08-22 18:17:12,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:17:12,332 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 510 [2020-08-22 18:17:12,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:17:12,333 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 520 [2020-08-22 18:17:12,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:17:12,614 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 18:17:12,615 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2102680944] [2020-08-22 18:17:12,615 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-22 18:17:12,615 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [23] imperfect sequences [] total 23 [2020-08-22 18:17:12,616 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1834120484] [2020-08-22 18:17:12,617 INFO L459 AbstractCegarLoop]: Interpolant automaton has 23 states [2020-08-22 18:17:12,617 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-22 18:17:12,617 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2020-08-22 18:17:12,618 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=55, Invalid=451, Unknown=0, NotChecked=0, Total=506 [2020-08-22 18:17:12,618 INFO L87 Difference]: Start difference. First operand 3192 states and 3489 transitions. Second operand 23 states. [2020-08-22 18:17:13,164 WARN L193 SmtUtils]: Spent 198.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-08-22 18:17:13,519 WARN L193 SmtUtils]: Spent 209.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-08-22 18:17:13,843 WARN L193 SmtUtils]: Spent 290.00 ms on a formula simplification that was a NOOP. DAG size: 196 [2020-08-22 18:17:14,098 WARN L193 SmtUtils]: Spent 203.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-08-22 18:17:14,347 WARN L193 SmtUtils]: Spent 209.00 ms on a formula simplification that was a NOOP. DAG size: 194 [2020-08-22 18:17:14,598 WARN L193 SmtUtils]: Spent 216.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-08-22 18:17:15,507 WARN L193 SmtUtils]: Spent 197.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-08-22 18:17:17,312 WARN L193 SmtUtils]: Spent 214.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-08-22 18:17:17,603 WARN L193 SmtUtils]: Spent 224.00 ms on a formula simplification that was a NOOP. DAG size: 195 [2020-08-22 18:17:17,931 WARN L193 SmtUtils]: Spent 215.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-08-22 18:17:18,250 WARN L193 SmtUtils]: Spent 210.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-08-22 18:17:18,507 WARN L193 SmtUtils]: Spent 224.00 ms on a formula simplification that was a NOOP. DAG size: 195 [2020-08-22 18:17:18,790 WARN L193 SmtUtils]: Spent 225.00 ms on a formula simplification that was a NOOP. DAG size: 195 [2020-08-22 18:17:19,102 WARN L193 SmtUtils]: Spent 279.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-08-22 18:17:19,389 WARN L193 SmtUtils]: Spent 224.00 ms on a formula simplification that was a NOOP. DAG size: 195 [2020-08-22 18:17:19,668 WARN L193 SmtUtils]: Spent 210.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-08-22 18:17:20,020 WARN L193 SmtUtils]: Spent 223.00 ms on a formula simplification that was a NOOP. DAG size: 195 [2020-08-22 18:17:20,289 WARN L193 SmtUtils]: Spent 210.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-08-22 18:17:20,576 WARN L193 SmtUtils]: Spent 225.00 ms on a formula simplification that was a NOOP. DAG size: 195 [2020-08-22 18:17:21,104 WARN L193 SmtUtils]: Spent 414.00 ms on a formula simplification. DAG size of input: 198 DAG size of output: 191 [2020-08-22 18:17:21,724 WARN L193 SmtUtils]: Spent 434.00 ms on a formula simplification. DAG size of input: 203 DAG size of output: 193 [2020-08-22 18:17:22,196 WARN L193 SmtUtils]: Spent 408.00 ms on a formula simplification. DAG size of input: 198 DAG size of output: 191 [2020-08-22 18:17:26,695 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-22 18:17:26,695 INFO L93 Difference]: Finished difference Result 7010 states and 8091 transitions. [2020-08-22 18:17:26,696 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 63 states. [2020-08-22 18:17:26,696 INFO L78 Accepts]: Start accepts. Automaton has 23 states. Word has length 533 [2020-08-22 18:17:26,696 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-22 18:17:26,717 INFO L225 Difference]: With dead ends: 7010 [2020-08-22 18:17:26,717 INFO L226 Difference]: Without dead ends: 4190 [2020-08-22 18:17:26,727 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 218 GetRequests, 136 SyntacticMatches, 3 SemanticMatches, 79 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1923 ImplicationChecksByTransitivity, 7.3s TimeCoverageRelationStatistics Valid=1192, Invalid=5288, Unknown=0, NotChecked=0, Total=6480 [2020-08-22 18:17:26,731 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4190 states. [2020-08-22 18:17:28,007 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4190 to 2983. [2020-08-22 18:17:28,007 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2983 states. [2020-08-22 18:17:28,014 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2983 states to 2983 states and 3242 transitions. [2020-08-22 18:17:28,015 INFO L78 Accepts]: Start accepts. Automaton has 2983 states and 3242 transitions. Word has length 533 [2020-08-22 18:17:28,016 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-22 18:17:28,016 INFO L479 AbstractCegarLoop]: Abstraction has 2983 states and 3242 transitions. [2020-08-22 18:17:28,016 INFO L480 AbstractCegarLoop]: Interpolant automaton has 23 states. [2020-08-22 18:17:28,016 INFO L276 IsEmpty]: Start isEmpty. Operand 2983 states and 3242 transitions. [2020-08-22 18:17:28,033 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 539 [2020-08-22 18:17:28,033 INFO L414 BasicCegarLoop]: Found error trace [2020-08-22 18:17:28,034 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, 1] [2020-08-22 18:17:28,034 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2020-08-22 18:17:28,034 INFO L427 AbstractCegarLoop]: === Iteration 15 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-22 18:17:28,034 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-22 18:17:28,035 INFO L82 PathProgramCache]: Analyzing trace with hash 1789840089, now seen corresponding path program 1 times [2020-08-22 18:17:28,035 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-22 18:17:28,035 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [343016974] [2020-08-22 18:17:28,035 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-22 18:17:28,053 INFO L288 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-08-22 18:17:28,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:17:28,347 WARN L193 SmtUtils]: Spent 196.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-08-22 18:17:28,348 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 18:17:28,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:17:28,369 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2020-08-22 18:17:28,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:17:28,370 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-08-22 18:17:28,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:17:28,373 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-08-22 18:17:28,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:17:28,399 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-08-22 18:17:28,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:17:28,410 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-08-22 18:17:28,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:17:28,422 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2020-08-22 18:17:28,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:17:28,435 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2020-08-22 18:17:28,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:17:28,454 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 138 [2020-08-22 18:17:28,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:17:28,460 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 18:17:28,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:17:28,461 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 18:17:28,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:17:28,475 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2020-08-22 18:17:28,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:17:28,478 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-22 18:17:28,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:17:28,482 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-22 18:17:28,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:17:28,483 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-22 18:17:28,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:17:28,484 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-08-22 18:17:28,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:17:28,486 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-22 18:17:28,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:17:28,487 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-22 18:17:28,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:17:28,488 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2020-08-22 18:17:28,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:17:28,492 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2020-08-22 18:17:28,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:17:28,493 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-22 18:17:28,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:17:28,511 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 240 [2020-08-22 18:17:28,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:17:28,524 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 249 [2020-08-22 18:17:28,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:17:28,526 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 253 [2020-08-22 18:17:28,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:17:28,556 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 18:17:28,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:17:28,558 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 18:17:28,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:17:28,559 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2020-08-22 18:17:28,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:17:28,561 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2020-08-22 18:17:28,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:17:28,666 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-22 18:17:28,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:17:28,743 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-22 18:17:28,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:17:28,797 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2020-08-22 18:17:28,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:17:28,799 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-22 18:17:28,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:17:28,800 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2020-08-22 18:17:28,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:17:28,802 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-22 18:17:28,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:17:28,803 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-08-22 18:17:28,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:17:28,809 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 346 [2020-08-22 18:17:28,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:17:28,810 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 350 [2020-08-22 18:17:28,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:17:28,814 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 18:17:28,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:17:28,816 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 18:17:28,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:17:28,817 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2020-08-22 18:17:28,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:17:28,818 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2020-08-22 18:17:28,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:17:28,820 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-22 18:17:28,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:17:28,821 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-22 18:17:28,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:17:28,822 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2020-08-22 18:17:28,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:17:28,823 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2020-08-22 18:17:28,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:17:28,824 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-22 18:17:28,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:17:28,827 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 424 [2020-08-22 18:17:28,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:17:28,828 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 433 [2020-08-22 18:17:28,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:17:28,829 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 438 [2020-08-22 18:17:28,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:17:28,831 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 18:17:28,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:17:28,832 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 452 [2020-08-22 18:17:28,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:17:28,836 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-22 18:17:28,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:17:28,839 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-22 18:17:28,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:17:28,840 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-22 18:17:28,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:17:28,841 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-08-22 18:17:28,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:17:28,843 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-22 18:17:28,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:17:28,843 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-22 18:17:28,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:17:28,844 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2020-08-22 18:17:28,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:17:28,848 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 515 [2020-08-22 18:17:28,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:17:28,849 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 525 [2020-08-22 18:17:28,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:17:29,048 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 18:17:29,049 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [343016974] [2020-08-22 18:17:29,049 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-22 18:17:29,049 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [23] imperfect sequences [] total 23 [2020-08-22 18:17:29,049 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [190460641] [2020-08-22 18:17:29,050 INFO L459 AbstractCegarLoop]: Interpolant automaton has 23 states [2020-08-22 18:17:29,050 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-22 18:17:29,050 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2020-08-22 18:17:29,050 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=55, Invalid=451, Unknown=0, NotChecked=0, Total=506 [2020-08-22 18:17:29,050 INFO L87 Difference]: Start difference. First operand 2983 states and 3242 transitions. Second operand 23 states. [2020-08-22 18:17:29,586 WARN L193 SmtUtils]: Spent 197.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-08-22 18:17:29,943 WARN L193 SmtUtils]: Spent 209.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-08-22 18:17:30,201 WARN L193 SmtUtils]: Spent 222.00 ms on a formula simplification that was a NOOP. DAG size: 196 [2020-08-22 18:17:30,458 WARN L193 SmtUtils]: Spent 203.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-08-22 18:17:30,710 WARN L193 SmtUtils]: Spent 210.00 ms on a formula simplification that was a NOOP. DAG size: 194 [2020-08-22 18:17:30,950 WARN L193 SmtUtils]: Spent 205.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-08-22 18:17:31,860 WARN L193 SmtUtils]: Spent 197.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-08-22 18:17:33,712 WARN L193 SmtUtils]: Spent 212.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-08-22 18:17:34,008 WARN L193 SmtUtils]: Spent 226.00 ms on a formula simplification that was a NOOP. DAG size: 195 [2020-08-22 18:17:34,341 WARN L193 SmtUtils]: Spent 214.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-08-22 18:17:34,663 WARN L193 SmtUtils]: Spent 211.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-08-22 18:17:34,975 WARN L193 SmtUtils]: Spent 278.00 ms on a formula simplification that was a NOOP. DAG size: 195 [2020-08-22 18:17:35,257 WARN L193 SmtUtils]: Spent 223.00 ms on a formula simplification that was a NOOP. DAG size: 195 [2020-08-22 18:17:35,505 WARN L193 SmtUtils]: Spent 213.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-08-22 18:17:35,794 WARN L193 SmtUtils]: Spent 226.00 ms on a formula simplification that was a NOOP. DAG size: 195 [2020-08-22 18:17:36,076 WARN L193 SmtUtils]: Spent 213.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-08-22 18:17:36,431 WARN L193 SmtUtils]: Spent 223.00 ms on a formula simplification that was a NOOP. DAG size: 195 [2020-08-22 18:17:36,701 WARN L193 SmtUtils]: Spent 212.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-08-22 18:17:36,983 WARN L193 SmtUtils]: Spent 224.00 ms on a formula simplification that was a NOOP. DAG size: 195 [2020-08-22 18:17:39,326 WARN L193 SmtUtils]: Spent 410.00 ms on a formula simplification. DAG size of input: 198 DAG size of output: 191 [2020-08-22 18:17:39,822 WARN L193 SmtUtils]: Spent 434.00 ms on a formula simplification. DAG size of input: 203 DAG size of output: 193 [2020-08-22 18:17:40,283 WARN L193 SmtUtils]: Spent 410.00 ms on a formula simplification. DAG size of input: 198 DAG size of output: 191 [2020-08-22 18:17:42,474 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-22 18:17:42,474 INFO L93 Difference]: Finished difference Result 6459 states and 7411 transitions. [2020-08-22 18:17:42,480 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 64 states. [2020-08-22 18:17:42,480 INFO L78 Accepts]: Start accepts. Automaton has 23 states. Word has length 538 [2020-08-22 18:17:42,480 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-22 18:17:42,499 INFO L225 Difference]: With dead ends: 6459 [2020-08-22 18:17:42,499 INFO L226 Difference]: Without dead ends: 3848 [2020-08-22 18:17:42,508 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 219 GetRequests, 138 SyntacticMatches, 1 SemanticMatches, 80 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1949 ImplicationChecksByTransitivity, 7.2s TimeCoverageRelationStatistics Valid=1207, Invalid=5435, Unknown=0, NotChecked=0, Total=6642 [2020-08-22 18:17:42,512 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3848 states. [2020-08-22 18:17:43,532 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3848 to 2754. [2020-08-22 18:17:43,532 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2754 states. [2020-08-22 18:17:43,536 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2754 states to 2754 states and 2991 transitions. [2020-08-22 18:17:43,538 INFO L78 Accepts]: Start accepts. Automaton has 2754 states and 2991 transitions. Word has length 538 [2020-08-22 18:17:43,538 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-22 18:17:43,538 INFO L479 AbstractCegarLoop]: Abstraction has 2754 states and 2991 transitions. [2020-08-22 18:17:43,538 INFO L480 AbstractCegarLoop]: Interpolant automaton has 23 states. [2020-08-22 18:17:43,538 INFO L276 IsEmpty]: Start isEmpty. Operand 2754 states and 2991 transitions. [2020-08-22 18:17:43,547 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 539 [2020-08-22 18:17:43,548 INFO L414 BasicCegarLoop]: Found error trace [2020-08-22 18:17:43,548 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, 1] [2020-08-22 18:17:43,548 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2020-08-22 18:17:43,548 INFO L427 AbstractCegarLoop]: === Iteration 16 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-22 18:17:43,549 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-22 18:17:43,549 INFO L82 PathProgramCache]: Analyzing trace with hash -835229441, now seen corresponding path program 2 times [2020-08-22 18:17:43,549 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-22 18:17:43,549 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [184556779] [2020-08-22 18:17:43,549 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-22 18:17:43,562 INFO L288 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-08-22 18:17:43,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:17:43,847 WARN L193 SmtUtils]: Spent 190.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-08-22 18:17:43,847 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 18:17:43,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:17:43,866 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2020-08-22 18:17:43,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:17:43,867 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-08-22 18:17:43,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:17:43,868 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-08-22 18:17:43,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:17:43,869 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-08-22 18:17:43,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:17:43,877 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-08-22 18:17:43,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:17:43,886 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2020-08-22 18:17:43,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:17:43,896 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2020-08-22 18:17:43,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:17:43,911 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 138 [2020-08-22 18:17:43,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:17:43,924 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 18:17:43,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:17:43,925 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 18:17:43,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:17:43,938 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2020-08-22 18:17:43,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:17:43,942 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-22 18:17:43,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:17:43,945 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-22 18:17:43,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:17:43,947 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-22 18:17:43,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:17:43,948 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-08-22 18:17:43,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:17:43,950 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-22 18:17:43,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:17:43,951 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-22 18:17:43,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:17:43,952 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2020-08-22 18:17:43,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:17:43,957 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2020-08-22 18:17:43,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:17:44,020 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-22 18:17:44,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:17:44,063 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 244 [2020-08-22 18:17:44,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:17:44,064 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 248 [2020-08-22 18:17:44,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:17:44,094 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 18:17:44,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:17:44,096 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 18:17:44,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:17:44,097 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2020-08-22 18:17:44,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:17:44,110 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2020-08-22 18:17:44,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:17:44,113 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-22 18:17:44,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:17:44,116 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-22 18:17:44,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:17:44,117 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2020-08-22 18:17:44,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:17:44,118 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-22 18:17:44,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:17:44,119 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2020-08-22 18:17:44,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:17:44,122 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-22 18:17:44,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:17:44,123 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-08-22 18:17:44,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:17:44,146 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 337 [2020-08-22 18:17:44,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:17:44,149 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 346 [2020-08-22 18:17:44,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:17:44,154 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 350 [2020-08-22 18:17:44,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:17:44,199 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 18:17:44,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:17:44,202 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 18:17:44,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:17:44,203 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2020-08-22 18:17:44,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:17:44,218 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2020-08-22 18:17:44,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:17:44,222 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-22 18:17:44,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:17:44,223 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-22 18:17:44,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:17:44,225 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2020-08-22 18:17:44,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:17:44,227 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2020-08-22 18:17:44,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:17:44,305 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-22 18:17:44,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:17:44,315 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 424 [2020-08-22 18:17:44,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:17:44,317 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 433 [2020-08-22 18:17:44,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:17:44,318 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 438 [2020-08-22 18:17:44,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:17:44,320 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 18:17:44,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:17:44,321 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 452 [2020-08-22 18:17:44,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:17:44,328 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-22 18:17:44,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:17:44,333 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-22 18:17:44,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:17:44,338 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-22 18:17:44,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:17:44,340 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-08-22 18:17:44,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:17:44,343 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-22 18:17:44,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:17:44,344 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-22 18:17:44,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:17:44,346 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2020-08-22 18:17:44,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:17:44,351 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 515 [2020-08-22 18:17:44,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:17:44,352 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 525 [2020-08-22 18:17:44,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:17:44,594 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 18:17:44,595 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [184556779] [2020-08-22 18:17:44,595 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-22 18:17:44,595 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2020-08-22 18:17:44,595 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [624839359] [2020-08-22 18:17:44,596 INFO L459 AbstractCegarLoop]: Interpolant automaton has 19 states [2020-08-22 18:17:44,596 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-22 18:17:44,596 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2020-08-22 18:17:44,597 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=50, Invalid=292, Unknown=0, NotChecked=0, Total=342 [2020-08-22 18:17:44,597 INFO L87 Difference]: Start difference. First operand 2754 states and 2991 transitions. Second operand 19 states. [2020-08-22 18:17:45,109 WARN L193 SmtUtils]: Spent 197.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-08-22 18:17:47,768 WARN L193 SmtUtils]: Spent 366.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-08-22 18:17:48,281 WARN L193 SmtUtils]: Spent 446.00 ms on a formula simplification that was a NOOP. DAG size: 195 [2020-08-22 18:17:49,024 WARN L193 SmtUtils]: Spent 616.00 ms on a formula simplification. DAG size of input: 194 DAG size of output: 191 [2020-08-22 18:17:49,431 WARN L193 SmtUtils]: Spent 328.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-08-22 18:17:50,116 WARN L193 SmtUtils]: Spent 641.00 ms on a formula simplification. DAG size of input: 197 DAG size of output: 193 [2020-08-22 18:17:50,506 WARN L193 SmtUtils]: Spent 336.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-08-22 18:17:51,064 WARN L193 SmtUtils]: Spent 513.00 ms on a formula simplification. DAG size of input: 194 DAG size of output: 191 [2020-08-22 18:17:51,343 WARN L193 SmtUtils]: Spent 209.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-08-22 18:17:51,620 WARN L193 SmtUtils]: Spent 223.00 ms on a formula simplification that was a NOOP. DAG size: 195 [2020-08-22 18:17:51,867 WARN L193 SmtUtils]: Spent 210.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-08-22 18:17:52,106 WARN L193 SmtUtils]: Spent 200.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-08-22 18:17:54,479 WARN L193 SmtUtils]: Spent 210.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-08-22 18:17:54,752 WARN L193 SmtUtils]: Spent 231.00 ms on a formula simplification that was a NOOP. DAG size: 195 [2020-08-22 18:17:58,310 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-22 18:17:58,310 INFO L93 Difference]: Finished difference Result 6677 states and 7828 transitions. [2020-08-22 18:17:58,311 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 70 states. [2020-08-22 18:17:58,311 INFO L78 Accepts]: Start accepts. Automaton has 19 states. Word has length 538 [2020-08-22 18:17:58,311 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-22 18:17:58,334 INFO L225 Difference]: With dead ends: 6677 [2020-08-22 18:17:58,334 INFO L226 Difference]: Without dead ends: 5076 [2020-08-22 18:17:58,343 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 236 GetRequests, 151 SyntacticMatches, 6 SemanticMatches, 79 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2081 ImplicationChecksByTransitivity, 6.4s TimeCoverageRelationStatistics Valid=1162, Invalid=5318, Unknown=0, NotChecked=0, Total=6480 [2020-08-22 18:17:58,348 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5076 states. [2020-08-22 18:17:59,751 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5076 to 3301. [2020-08-22 18:17:59,751 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3301 states. [2020-08-22 18:17:59,756 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3301 states to 3301 states and 3576 transitions. [2020-08-22 18:17:59,757 INFO L78 Accepts]: Start accepts. Automaton has 3301 states and 3576 transitions. Word has length 538 [2020-08-22 18:17:59,758 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-22 18:17:59,758 INFO L479 AbstractCegarLoop]: Abstraction has 3301 states and 3576 transitions. [2020-08-22 18:17:59,758 INFO L480 AbstractCegarLoop]: Interpolant automaton has 19 states. [2020-08-22 18:17:59,758 INFO L276 IsEmpty]: Start isEmpty. Operand 3301 states and 3576 transitions. [2020-08-22 18:17:59,767 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 554 [2020-08-22 18:17:59,767 INFO L414 BasicCegarLoop]: Found error trace [2020-08-22 18:17:59,768 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 18:17:59,768 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2020-08-22 18:17:59,768 INFO L427 AbstractCegarLoop]: === Iteration 17 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-22 18:17:59,768 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-22 18:17:59,769 INFO L82 PathProgramCache]: Analyzing trace with hash 1795671739, now seen corresponding path program 1 times [2020-08-22 18:17:59,769 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-22 18:17:59,769 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [267876206] [2020-08-22 18:17:59,769 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-22 18:17:59,783 INFO L288 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-08-22 18:17:59,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:18:00,082 WARN L193 SmtUtils]: Spent 191.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-08-22 18:18:00,083 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 18:18:00,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:18:00,101 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2020-08-22 18:18:00,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:18:00,102 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-08-22 18:18:00,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:18:00,103 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-08-22 18:18:00,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:18:00,103 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-08-22 18:18:00,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:18:00,111 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-08-22 18:18:00,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:18:00,123 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2020-08-22 18:18:00,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:18:00,133 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2020-08-22 18:18:00,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:18:00,150 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 138 [2020-08-22 18:18:00,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:18:00,159 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 18:18:00,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:18:00,161 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 18:18:00,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:18:00,171 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2020-08-22 18:18:00,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:18:00,175 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-22 18:18:00,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:18:00,178 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-22 18:18:00,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:18:00,179 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-22 18:18:00,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:18:00,181 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-08-22 18:18:00,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:18:00,182 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-22 18:18:00,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:18:00,184 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-22 18:18:00,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:18:00,185 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2020-08-22 18:18:00,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:18:00,189 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2020-08-22 18:18:00,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:18:00,270 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-22 18:18:00,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:18:00,312 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 244 [2020-08-22 18:18:00,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:18:00,314 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 248 [2020-08-22 18:18:00,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:18:00,342 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 18:18:00,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:18:00,344 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 18:18:00,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:18:00,345 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2020-08-22 18:18:00,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:18:00,356 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2020-08-22 18:18:00,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:18:00,359 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-22 18:18:00,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:18:00,360 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-22 18:18:00,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:18:00,361 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2020-08-22 18:18:00,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:18:00,362 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-22 18:18:00,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:18:00,363 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2020-08-22 18:18:00,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:18:00,365 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-22 18:18:00,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:18:00,366 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-08-22 18:18:00,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:18:00,385 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 337 [2020-08-22 18:18:00,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:18:00,387 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 346 [2020-08-22 18:18:00,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:18:00,388 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 350 [2020-08-22 18:18:00,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:18:00,403 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 18:18:00,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:18:00,405 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 18:18:00,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:18:00,406 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2020-08-22 18:18:00,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:18:00,416 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2020-08-22 18:18:00,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:18:00,419 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-22 18:18:00,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:18:00,420 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-22 18:18:00,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:18:00,421 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2020-08-22 18:18:00,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:18:00,422 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2020-08-22 18:18:00,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:18:00,424 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-22 18:18:00,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:18:00,425 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-08-22 18:18:00,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:18:00,429 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 430 [2020-08-22 18:18:00,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:18:00,459 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 439 [2020-08-22 18:18:00,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:18:00,460 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 448 [2020-08-22 18:18:00,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:18:00,462 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 453 [2020-08-22 18:18:00,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:18:00,463 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 18:18:00,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:18:00,464 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 467 [2020-08-22 18:18:00,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:18:00,487 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-22 18:18:00,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:18:00,492 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-22 18:18:00,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:18:00,494 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-22 18:18:00,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:18:00,496 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-08-22 18:18:00,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:18:00,499 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-22 18:18:00,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:18:00,500 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-22 18:18:00,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:18:00,501 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2020-08-22 18:18:00,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:18:00,506 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 530 [2020-08-22 18:18:00,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:18:00,507 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 540 [2020-08-22 18:18:00,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:18:00,663 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 18:18:00,663 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [267876206] [2020-08-22 18:18:00,664 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-22 18:18:00,664 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2020-08-22 18:18:00,664 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1137776267] [2020-08-22 18:18:00,664 INFO L459 AbstractCegarLoop]: Interpolant automaton has 19 states [2020-08-22 18:18:00,665 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-22 18:18:00,665 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2020-08-22 18:18:00,665 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=52, Invalid=290, Unknown=0, NotChecked=0, Total=342 [2020-08-22 18:18:00,665 INFO L87 Difference]: Start difference. First operand 3301 states and 3576 transitions. Second operand 19 states. [2020-08-22 18:18:01,238 WARN L193 SmtUtils]: Spent 198.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-08-22 18:18:02,782 WARN L193 SmtUtils]: Spent 198.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-08-22 18:18:03,593 WARN L193 SmtUtils]: Spent 213.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-08-22 18:18:03,863 WARN L193 SmtUtils]: Spent 227.00 ms on a formula simplification that was a NOOP. DAG size: 195 [2020-08-22 18:18:04,366 WARN L193 SmtUtils]: Spent 415.00 ms on a formula simplification. DAG size of input: 197 DAG size of output: 191 [2020-08-22 18:18:04,634 WARN L193 SmtUtils]: Spent 215.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-08-22 18:18:05,106 WARN L193 SmtUtils]: Spent 444.00 ms on a formula simplification. DAG size of input: 202 DAG size of output: 193 [2020-08-22 18:18:05,366 WARN L193 SmtUtils]: Spent 228.00 ms on a formula simplification that was a NOOP. DAG size: 195 [2020-08-22 18:18:05,840 WARN L193 SmtUtils]: Spent 437.00 ms on a formula simplification. DAG size of input: 197 DAG size of output: 191 [2020-08-22 18:18:06,386 WARN L193 SmtUtils]: Spent 465.00 ms on a formula simplification. DAG size of input: 196 DAG size of output: 194 [2020-08-22 18:18:06,913 WARN L193 SmtUtils]: Spent 468.00 ms on a formula simplification. DAG size of input: 201 DAG size of output: 197 [2020-08-22 18:18:07,385 WARN L193 SmtUtils]: Spent 436.00 ms on a formula simplification. DAG size of input: 196 DAG size of output: 194 [2020-08-22 18:18:07,671 WARN L193 SmtUtils]: Spent 243.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-08-22 18:18:10,098 WARN L193 SmtUtils]: Spent 213.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-08-22 18:18:10,369 WARN L193 SmtUtils]: Spent 227.00 ms on a formula simplification that was a NOOP. DAG size: 195 [2020-08-22 18:18:11,678 WARN L193 SmtUtils]: Spent 200.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-08-22 18:18:12,614 WARN L193 SmtUtils]: Spent 214.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-08-22 18:18:12,879 WARN L193 SmtUtils]: Spent 227.00 ms on a formula simplification that was a NOOP. DAG size: 195 [2020-08-22 18:18:13,353 WARN L193 SmtUtils]: Spent 414.00 ms on a formula simplification. DAG size of input: 198 DAG size of output: 191 [2020-08-22 18:18:13,595 WARN L193 SmtUtils]: Spent 212.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-08-22 18:18:14,078 WARN L193 SmtUtils]: Spent 444.00 ms on a formula simplification. DAG size of input: 203 DAG size of output: 193 [2020-08-22 18:18:14,325 WARN L193 SmtUtils]: Spent 224.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-08-22 18:18:14,779 WARN L193 SmtUtils]: Spent 418.00 ms on a formula simplification. DAG size of input: 198 DAG size of output: 191 [2020-08-22 18:18:15,055 WARN L193 SmtUtils]: Spent 226.00 ms on a formula simplification that was a NOOP. DAG size: 196 [2020-08-22 18:18:15,401 WARN L193 SmtUtils]: Spent 250.00 ms on a formula simplification that was a NOOP. DAG size: 201 [2020-08-22 18:18:15,664 WARN L193 SmtUtils]: Spent 216.00 ms on a formula simplification that was a NOOP. DAG size: 196 [2020-08-22 18:18:21,199 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-22 18:18:21,199 INFO L93 Difference]: Finished difference Result 8891 states and 10524 transitions. [2020-08-22 18:18:21,199 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 114 states. [2020-08-22 18:18:21,199 INFO L78 Accepts]: Start accepts. Automaton has 19 states. Word has length 553 [2020-08-22 18:18:21,200 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-22 18:18:21,225 INFO L225 Difference]: With dead ends: 8891 [2020-08-22 18:18:21,225 INFO L226 Difference]: Without dead ends: 6982 [2020-08-22 18:18:21,235 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 309 GetRequests, 180 SyntacticMatches, 7 SemanticMatches, 122 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5700 ImplicationChecksByTransitivity, 10.3s TimeCoverageRelationStatistics Valid=2467, Invalid=12785, Unknown=0, NotChecked=0, Total=15252 [2020-08-22 18:18:21,241 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6982 states. [2020-08-22 18:18:23,505 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6982 to 4064. [2020-08-22 18:18:23,506 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4064 states. [2020-08-22 18:18:23,510 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4064 states to 4064 states and 4391 transitions. [2020-08-22 18:18:23,512 INFO L78 Accepts]: Start accepts. Automaton has 4064 states and 4391 transitions. Word has length 553 [2020-08-22 18:18:23,513 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-22 18:18:23,513 INFO L479 AbstractCegarLoop]: Abstraction has 4064 states and 4391 transitions. [2020-08-22 18:18:23,513 INFO L480 AbstractCegarLoop]: Interpolant automaton has 19 states. [2020-08-22 18:18:23,513 INFO L276 IsEmpty]: Start isEmpty. Operand 4064 states and 4391 transitions. [2020-08-22 18:18:23,524 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 641 [2020-08-22 18:18:23,525 INFO L414 BasicCegarLoop]: Found error trace [2020-08-22 18:18:23,525 INFO L422 BasicCegarLoop]: trace histogram [8, 8, 8, 8, 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, 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, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 18:18:23,525 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2020-08-22 18:18:23,526 INFO L427 AbstractCegarLoop]: === Iteration 18 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-22 18:18:23,526 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-22 18:18:23,526 INFO L82 PathProgramCache]: Analyzing trace with hash 1879765246, now seen corresponding path program 3 times [2020-08-22 18:18:23,526 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-22 18:18:23,526 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [963866754] [2020-08-22 18:18:23,527 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-22 18:18:23,540 INFO L288 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-08-22 18:18:23,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:18:23,865 WARN L193 SmtUtils]: Spent 210.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-08-22 18:18:23,866 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 18:18:23,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:18:23,887 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2020-08-22 18:18:23,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:18:23,888 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-08-22 18:18:23,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:18:23,889 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-08-22 18:18:23,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:18:23,890 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-08-22 18:18:23,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:18:23,900 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-08-22 18:18:23,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:18:23,913 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2020-08-22 18:18:23,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:18:23,924 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2020-08-22 18:18:23,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:18:23,944 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 138 [2020-08-22 18:18:23,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:18:23,950 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 18:18:23,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:18:23,951 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 18:18:23,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:18:23,966 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2020-08-22 18:18:23,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:18:23,970 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-22 18:18:23,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:18:23,973 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-22 18:18:23,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:18:23,974 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-22 18:18:23,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:18:23,975 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-08-22 18:18:23,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:18:23,977 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-22 18:18:23,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:18:23,978 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-22 18:18:23,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:18:23,978 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2020-08-22 18:18:23,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:18:23,983 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2020-08-22 18:18:23,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:18:23,984 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-22 18:18:23,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:18:23,991 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 244 [2020-08-22 18:18:23,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:18:23,992 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 248 [2020-08-22 18:18:23,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:18:23,996 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 18:18:23,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:18:23,997 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 18:18:23,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:18:23,998 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2020-08-22 18:18:23,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:18:23,999 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2020-08-22 18:18:24,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:18:24,001 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-22 18:18:24,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:18:24,002 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-22 18:18:24,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:18:24,003 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2020-08-22 18:18:24,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:18:24,004 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-22 18:18:24,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:18:24,005 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2020-08-22 18:18:24,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:18:24,006 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-22 18:18:24,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:18:24,007 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-08-22 18:18:24,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:18:24,011 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 333 [2020-08-22 18:18:24,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:18:24,013 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 346 [2020-08-22 18:18:24,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:18:24,014 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 350 [2020-08-22 18:18:24,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:18:24,040 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 18:18:24,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:18:24,042 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 18:18:24,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:18:24,043 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2020-08-22 18:18:24,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:18:24,054 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2020-08-22 18:18:24,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:18:24,057 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-22 18:18:24,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:18:24,058 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-22 18:18:24,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:18:24,059 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2020-08-22 18:18:24,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:18:24,060 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-22 18:18:24,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:18:24,061 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2020-08-22 18:18:24,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:18:24,063 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-22 18:18:24,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:18:24,064 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-08-22 18:18:24,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:18:24,081 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 439 [2020-08-22 18:18:24,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:18:24,082 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 448 [2020-08-22 18:18:24,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:18:24,083 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 452 [2020-08-22 18:18:24,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:18:24,112 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 18:18:24,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:18:24,114 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 18:18:24,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:18:24,115 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2020-08-22 18:18:24,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:18:24,125 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2020-08-22 18:18:24,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:18:24,128 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-22 18:18:24,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:18:24,129 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-22 18:18:24,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:18:24,130 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2020-08-22 18:18:24,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:18:24,132 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2020-08-22 18:18:24,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:18:24,190 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-22 18:18:24,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:18:24,235 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 526 [2020-08-22 18:18:24,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:18:24,236 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 535 [2020-08-22 18:18:24,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:18:24,237 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 540 [2020-08-22 18:18:24,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:18:24,238 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 18:18:24,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:18:24,239 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 554 [2020-08-22 18:18:24,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:18:24,242 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-22 18:18:24,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:18:24,246 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-22 18:18:24,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:18:24,248 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-22 18:18:24,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:18:24,249 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-08-22 18:18:24,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:18:24,250 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-22 18:18:24,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:18:24,251 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-22 18:18:24,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:18:24,252 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2020-08-22 18:18:24,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:18:24,256 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 617 [2020-08-22 18:18:24,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:18:24,257 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 627 [2020-08-22 18:18:24,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:18:24,652 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 18:18:24,652 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [963866754] [2020-08-22 18:18:24,653 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-22 18:18:24,653 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2020-08-22 18:18:24,653 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1808039508] [2020-08-22 18:18:24,655 INFO L459 AbstractCegarLoop]: Interpolant automaton has 18 states [2020-08-22 18:18:24,655 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-22 18:18:24,655 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2020-08-22 18:18:24,656 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=46, Invalid=260, Unknown=0, NotChecked=0, Total=306 [2020-08-22 18:18:24,656 INFO L87 Difference]: Start difference. First operand 4064 states and 4391 transitions. Second operand 18 states. [2020-08-22 18:18:25,207 WARN L193 SmtUtils]: Spent 200.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-08-22 18:18:26,042 WARN L193 SmtUtils]: Spent 200.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-08-22 18:18:27,082 WARN L193 SmtUtils]: Spent 204.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-08-22 18:18:27,857 WARN L193 SmtUtils]: Spent 216.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-08-22 18:18:28,122 WARN L193 SmtUtils]: Spent 227.00 ms on a formula simplification that was a NOOP. DAG size: 195 [2020-08-22 18:18:28,611 WARN L193 SmtUtils]: Spent 409.00 ms on a formula simplification. DAG size of input: 194 DAG size of output: 191 [2020-08-22 18:18:28,878 WARN L193 SmtUtils]: Spent 215.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-08-22 18:18:29,335 WARN L193 SmtUtils]: Spent 429.00 ms on a formula simplification. DAG size of input: 197 DAG size of output: 193 [2020-08-22 18:18:29,661 WARN L193 SmtUtils]: Spent 295.00 ms on a formula simplification that was a NOOP. DAG size: 195 [2020-08-22 18:18:30,098 WARN L193 SmtUtils]: Spent 409.00 ms on a formula simplification. DAG size of input: 194 DAG size of output: 191 [2020-08-22 18:18:36,550 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-22 18:18:36,550 INFO L93 Difference]: Finished difference Result 8364 states and 9629 transitions. [2020-08-22 18:18:36,551 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 61 states. [2020-08-22 18:18:36,551 INFO L78 Accepts]: Start accepts. Automaton has 18 states. Word has length 640 [2020-08-22 18:18:36,552 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-22 18:18:36,575 INFO L225 Difference]: With dead ends: 8364 [2020-08-22 18:18:36,575 INFO L226 Difference]: Without dead ends: 5747 [2020-08-22 18:18:36,583 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 246 GetRequests, 171 SyntacticMatches, 4 SemanticMatches, 71 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1755 ImplicationChecksByTransitivity, 4.2s TimeCoverageRelationStatistics Valid=1049, Invalid=4207, Unknown=0, NotChecked=0, Total=5256 [2020-08-22 18:18:36,588 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5747 states. [2020-08-22 18:18:38,045 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5747 to 3838. [2020-08-22 18:18:38,045 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3838 states. [2020-08-22 18:18:38,049 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3838 states to 3838 states and 4113 transitions. [2020-08-22 18:18:38,051 INFO L78 Accepts]: Start accepts. Automaton has 3838 states and 4113 transitions. Word has length 640 [2020-08-22 18:18:38,051 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-22 18:18:38,051 INFO L479 AbstractCegarLoop]: Abstraction has 3838 states and 4113 transitions. [2020-08-22 18:18:38,051 INFO L480 AbstractCegarLoop]: Interpolant automaton has 18 states. [2020-08-22 18:18:38,052 INFO L276 IsEmpty]: Start isEmpty. Operand 3838 states and 4113 transitions. [2020-08-22 18:18:38,060 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 656 [2020-08-22 18:18:38,060 INFO L414 BasicCegarLoop]: Found error trace [2020-08-22 18:18:38,061 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, 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, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 18:18:38,061 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2020-08-22 18:18:38,061 INFO L427 AbstractCegarLoop]: === Iteration 19 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-22 18:18:38,061 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-22 18:18:38,061 INFO L82 PathProgramCache]: Analyzing trace with hash 622944476, now seen corresponding path program 2 times [2020-08-22 18:18:38,062 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-22 18:18:38,062 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [577935289] [2020-08-22 18:18:38,062 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-22 18:18:38,075 INFO L288 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-08-22 18:18:38,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:18:38,393 WARN L193 SmtUtils]: Spent 193.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-08-22 18:18:38,394 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 18:18:38,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:18:38,411 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2020-08-22 18:18:38,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:18:38,411 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-08-22 18:18:38,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:18:38,412 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-08-22 18:18:38,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:18:38,413 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-08-22 18:18:38,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:18:38,424 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-08-22 18:18:38,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:18:38,433 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2020-08-22 18:18:38,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:18:38,441 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2020-08-22 18:18:38,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:18:38,456 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 138 [2020-08-22 18:18:38,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:18:38,460 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 18:18:38,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:18:38,461 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 18:18:38,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:18:38,477 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2020-08-22 18:18:38,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:18:38,480 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-22 18:18:38,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:18:38,483 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-22 18:18:38,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:18:38,484 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-22 18:18:38,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:18:38,485 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-08-22 18:18:38,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:18:38,487 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-22 18:18:38,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:18:38,488 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-22 18:18:38,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:18:38,489 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2020-08-22 18:18:38,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:18:38,493 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2020-08-22 18:18:38,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:18:38,494 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-22 18:18:38,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:18:38,499 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 244 [2020-08-22 18:18:38,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:18:38,500 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 248 [2020-08-22 18:18:38,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:18:38,503 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 18:18:38,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:18:38,504 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 18:18:38,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:18:38,505 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2020-08-22 18:18:38,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:18:38,506 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2020-08-22 18:18:38,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:18:38,508 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-22 18:18:38,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:18:38,509 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-22 18:18:38,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:18:38,510 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2020-08-22 18:18:38,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:18:38,511 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-22 18:18:38,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:18:38,512 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2020-08-22 18:18:38,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:18:38,514 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-22 18:18:38,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:18:38,515 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-08-22 18:18:38,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:18:38,519 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 333 [2020-08-22 18:18:38,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:18:38,521 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 346 [2020-08-22 18:18:38,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:18:38,522 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 350 [2020-08-22 18:18:38,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:18:38,552 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 18:18:38,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:18:38,554 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 18:18:38,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:18:38,555 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2020-08-22 18:18:38,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:18:38,565 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2020-08-22 18:18:38,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:18:38,568 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-22 18:18:38,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:18:38,569 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-22 18:18:38,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:18:38,570 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2020-08-22 18:18:38,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:18:38,570 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-22 18:18:38,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:18:38,571 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2020-08-22 18:18:38,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:18:38,573 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-22 18:18:38,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:18:38,573 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-08-22 18:18:38,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:18:38,588 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 439 [2020-08-22 18:18:38,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:18:38,589 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 448 [2020-08-22 18:18:38,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:18:38,590 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 452 [2020-08-22 18:18:38,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:18:38,604 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 18:18:38,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:18:38,606 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 18:18:38,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:18:38,607 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2020-08-22 18:18:38,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:18:38,621 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2020-08-22 18:18:38,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:18:38,624 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-22 18:18:38,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:18:38,625 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-22 18:18:38,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:18:38,626 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2020-08-22 18:18:38,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:18:38,627 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2020-08-22 18:18:38,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:18:38,630 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-22 18:18:38,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:18:38,630 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-08-22 18:18:38,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:18:38,635 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 532 [2020-08-22 18:18:38,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:18:38,665 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 541 [2020-08-22 18:18:38,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:18:38,666 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 550 [2020-08-22 18:18:38,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:18:38,667 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 555 [2020-08-22 18:18:38,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:18:38,669 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 18:18:38,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:18:38,670 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 569 [2020-08-22 18:18:38,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:18:38,689 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-22 18:18:38,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:18:38,694 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-22 18:18:38,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:18:38,696 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-22 18:18:38,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:18:38,697 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-08-22 18:18:38,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:18:38,699 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-22 18:18:38,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:18:38,700 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-22 18:18:38,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:18:38,701 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2020-08-22 18:18:38,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:18:38,705 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 632 [2020-08-22 18:18:38,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:18:38,706 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 642 [2020-08-22 18:18:38,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:18:38,883 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 18:18:38,883 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [577935289] [2020-08-22 18:18:38,884 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-22 18:18:38,884 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2020-08-22 18:18:38,884 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1403446642] [2020-08-22 18:18:38,884 INFO L459 AbstractCegarLoop]: Interpolant automaton has 15 states [2020-08-22 18:18:38,884 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-22 18:18:38,885 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2020-08-22 18:18:38,885 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=43, Invalid=167, Unknown=0, NotChecked=0, Total=210 [2020-08-22 18:18:38,885 INFO L87 Difference]: Start difference. First operand 3838 states and 4113 transitions. Second operand 15 states. [2020-08-22 18:18:39,441 WARN L193 SmtUtils]: Spent 214.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-08-22 18:18:40,119 WARN L193 SmtUtils]: Spent 201.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-08-22 18:18:40,992 WARN L193 SmtUtils]: Spent 206.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-08-22 18:18:44,849 WARN L193 SmtUtils]: Spent 199.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-08-22 18:18:50,524 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-22 18:18:50,524 INFO L93 Difference]: Finished difference Result 9133 states and 10536 transitions. [2020-08-22 18:18:50,525 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 77 states. [2020-08-22 18:18:50,525 INFO L78 Accepts]: Start accepts. Automaton has 15 states. Word has length 655 [2020-08-22 18:18:50,525 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-22 18:18:50,545 INFO L225 Difference]: With dead ends: 9133 [2020-08-22 18:18:50,546 INFO L226 Difference]: Without dead ends: 6742 [2020-08-22 18:18:50,553 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 282 GetRequests, 193 SyntacticMatches, 5 SemanticMatches, 84 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2635 ImplicationChecksByTransitivity, 2.4s TimeCoverageRelationStatistics Valid=1284, Invalid=6026, Unknown=0, NotChecked=0, Total=7310 [2020-08-22 18:18:50,559 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6742 states. [2020-08-22 18:18:52,171 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6742 to 4342. [2020-08-22 18:18:52,171 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4342 states. [2020-08-22 18:18:52,179 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4342 states to 4342 states and 4652 transitions. [2020-08-22 18:18:52,181 INFO L78 Accepts]: Start accepts. Automaton has 4342 states and 4652 transitions. Word has length 655 [2020-08-22 18:18:52,182 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-22 18:18:52,182 INFO L479 AbstractCegarLoop]: Abstraction has 4342 states and 4652 transitions. [2020-08-22 18:18:52,182 INFO L480 AbstractCegarLoop]: Interpolant automaton has 15 states. [2020-08-22 18:18:52,182 INFO L276 IsEmpty]: Start isEmpty. Operand 4342 states and 4652 transitions. [2020-08-22 18:18:52,192 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 656 [2020-08-22 18:18:52,193 INFO L414 BasicCegarLoop]: Found error trace [2020-08-22 18:18:52,193 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, 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, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 18:18:52,193 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2020-08-22 18:18:52,194 INFO L427 AbstractCegarLoop]: === Iteration 20 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-22 18:18:52,194 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-22 18:18:52,194 INFO L82 PathProgramCache]: Analyzing trace with hash 84137668, now seen corresponding path program 1 times [2020-08-22 18:18:52,194 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-22 18:18:52,194 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1008441699] [2020-08-22 18:18:52,195 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-22 18:18:52,216 INFO L288 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-08-22 18:18:52,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:18:52,705 WARN L193 SmtUtils]: Spent 196.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-08-22 18:18:52,706 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 18:18:52,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:18:52,728 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2020-08-22 18:18:52,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:18:52,729 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-08-22 18:18:52,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:18:52,729 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-08-22 18:18:52,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:18:52,730 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-08-22 18:18:52,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:18:52,740 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-08-22 18:18:52,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:18:52,755 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2020-08-22 18:18:52,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:18:52,767 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2020-08-22 18:18:52,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:18:52,785 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 138 [2020-08-22 18:18:52,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:18:52,795 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 18:18:52,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:18:52,796 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 18:18:52,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:18:52,809 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2020-08-22 18:18:52,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:18:52,812 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-22 18:18:52,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:18:52,814 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-22 18:18:52,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:18:52,815 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-22 18:18:52,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:18:52,816 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-08-22 18:18:52,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:18:52,818 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-22 18:18:52,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:18:52,820 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-22 18:18:52,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:18:52,821 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2020-08-22 18:18:52,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:18:52,824 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2020-08-22 18:18:52,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:18:52,910 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-22 18:18:52,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:18:52,954 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 244 [2020-08-22 18:18:52,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:18:52,955 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 248 [2020-08-22 18:18:52,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:18:52,988 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 18:18:52,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:18:52,990 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 18:18:52,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:18:52,991 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2020-08-22 18:18:52,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:18:53,002 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2020-08-22 18:18:53,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:18:53,005 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-22 18:18:53,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:18:53,007 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-22 18:18:53,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:18:53,007 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2020-08-22 18:18:53,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:18:53,008 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-22 18:18:53,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:18:53,009 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2020-08-22 18:18:53,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:18:53,010 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-22 18:18:53,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:18:53,011 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-08-22 18:18:53,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:18:53,033 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 337 [2020-08-22 18:18:53,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:18:53,035 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 346 [2020-08-22 18:18:53,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:18:53,035 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 350 [2020-08-22 18:18:53,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:18:53,093 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 18:18:53,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:18:53,095 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 18:18:53,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:18:53,096 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2020-08-22 18:18:53,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:18:53,149 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2020-08-22 18:18:53,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:18:53,152 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-22 18:18:53,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:18:53,153 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-22 18:18:53,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:18:53,154 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2020-08-22 18:18:53,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:18:53,155 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2020-08-22 18:18:53,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:18:53,161 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-22 18:18:53,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:18:53,161 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-08-22 18:18:53,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:18:53,171 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 430 [2020-08-22 18:18:53,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:18:53,226 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 439 [2020-08-22 18:18:53,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:18:53,228 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 448 [2020-08-22 18:18:53,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:18:53,229 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 452 [2020-08-22 18:18:53,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:18:53,242 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 18:18:53,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:18:53,245 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 18:18:53,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:18:53,246 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2020-08-22 18:18:53,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:18:53,248 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-22 18:18:53,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:18:53,250 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-22 18:18:53,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:18:53,251 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-22 18:18:53,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:18:53,252 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-08-22 18:18:53,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:18:53,254 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2020-08-22 18:18:53,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:18:53,256 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-22 18:18:53,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:18:53,257 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-08-22 18:18:53,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:18:53,261 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 537 [2020-08-22 18:18:53,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:18:53,330 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 550 [2020-08-22 18:18:53,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:18:53,331 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 555 [2020-08-22 18:18:53,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:18:53,333 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 18:18:53,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:18:53,334 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 569 [2020-08-22 18:18:53,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:18:53,338 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-22 18:18:53,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:18:53,341 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-22 18:18:53,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:18:53,343 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-22 18:18:53,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:18:53,344 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-08-22 18:18:53,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:18:53,347 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-22 18:18:53,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:18:53,348 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-22 18:18:53,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:18:53,349 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2020-08-22 18:18:53,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:18:53,353 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 632 [2020-08-22 18:18:53,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:18:53,391 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 642 [2020-08-22 18:18:53,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:18:53,612 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 18:18:53,612 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1008441699] [2020-08-22 18:18:53,613 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-22 18:18:53,613 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2020-08-22 18:18:53,613 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1555098305] [2020-08-22 18:18:53,613 INFO L459 AbstractCegarLoop]: Interpolant automaton has 26 states [2020-08-22 18:18:53,613 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-22 18:18:53,614 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2020-08-22 18:18:53,614 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=71, Invalid=579, Unknown=0, NotChecked=0, Total=650 [2020-08-22 18:18:53,614 INFO L87 Difference]: Start difference. First operand 4342 states and 4652 transitions. Second operand 26 states. [2020-08-22 18:18:54,407 WARN L193 SmtUtils]: Spent 419.00 ms on a formula simplification. DAG size of input: 192 DAG size of output: 189 [2020-08-22 18:18:55,564 WARN L193 SmtUtils]: Spent 404.00 ms on a formula simplification. DAG size of input: 192 DAG size of output: 189 [2020-08-22 18:18:57,797 WARN L193 SmtUtils]: Spent 463.00 ms on a formula simplification. DAG size of input: 195 DAG size of output: 192 [2020-08-22 18:18:58,322 WARN L193 SmtUtils]: Spent 471.00 ms on a formula simplification. DAG size of input: 198 DAG size of output: 195 [2020-08-22 18:18:58,859 WARN L193 SmtUtils]: Spent 434.00 ms on a formula simplification. DAG size of input: 200 DAG size of output: 191 [2020-08-22 18:18:59,357 WARN L193 SmtUtils]: Spent 436.00 ms on a formula simplification. DAG size of input: 195 DAG size of output: 192 [2020-08-22 18:18:59,860 WARN L193 SmtUtils]: Spent 466.00 ms on a formula simplification. DAG size of input: 205 DAG size of output: 193 [2020-08-22 18:19:00,436 WARN L193 SmtUtils]: Spent 533.00 ms on a formula simplification. DAG size of input: 198 DAG size of output: 195 [2020-08-22 18:19:00,912 WARN L193 SmtUtils]: Spent 436.00 ms on a formula simplification. DAG size of input: 200 DAG size of output: 191 [2020-08-22 18:19:01,419 WARN L193 SmtUtils]: Spent 421.00 ms on a formula simplification. DAG size of input: 194 DAG size of output: 191 [2020-08-22 18:19:01,914 WARN L193 SmtUtils]: Spent 432.00 ms on a formula simplification. DAG size of input: 196 DAG size of output: 193 [2020-08-22 18:19:02,372 WARN L193 SmtUtils]: Spent 418.00 ms on a formula simplification. DAG size of input: 194 DAG size of output: 191 [2020-08-22 18:19:05,627 WARN L193 SmtUtils]: Spent 403.00 ms on a formula simplification. DAG size of input: 192 DAG size of output: 189 [2020-08-22 18:19:06,637 WARN L193 SmtUtils]: Spent 433.00 ms on a formula simplification. DAG size of input: 195 DAG size of output: 192 [2020-08-22 18:19:07,137 WARN L193 SmtUtils]: Spent 462.00 ms on a formula simplification. DAG size of input: 198 DAG size of output: 195 [2020-08-22 18:19:07,620 WARN L193 SmtUtils]: Spent 424.00 ms on a formula simplification. DAG size of input: 200 DAG size of output: 191 [2020-08-22 18:19:08,123 WARN L193 SmtUtils]: Spent 452.00 ms on a formula simplification. DAG size of input: 205 DAG size of output: 193 [2020-08-22 18:19:08,592 WARN L193 SmtUtils]: Spent 428.00 ms on a formula simplification. DAG size of input: 200 DAG size of output: 191 [2020-08-22 18:19:12,190 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-22 18:19:12,191 INFO L93 Difference]: Finished difference Result 8256 states and 9277 transitions. [2020-08-22 18:19:12,191 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 74 states. [2020-08-22 18:19:12,191 INFO L78 Accepts]: Start accepts. Automaton has 26 states. Word has length 655 [2020-08-22 18:19:12,192 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-22 18:19:12,195 INFO L225 Difference]: With dead ends: 8256 [2020-08-22 18:19:12,195 INFO L226 Difference]: Without dead ends: 0 [2020-08-22 18:19:12,211 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 279 GetRequests, 176 SyntacticMatches, 11 SemanticMatches, 92 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2788 ImplicationChecksByTransitivity, 10.5s TimeCoverageRelationStatistics Valid=1305, Invalid=7437, Unknown=0, NotChecked=0, Total=8742 [2020-08-22 18:19:12,211 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-08-22 18:19:12,212 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-08-22 18:19:12,212 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-08-22 18:19:12,212 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-08-22 18:19:12,213 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 655 [2020-08-22 18:19:12,213 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-22 18:19:12,213 INFO L479 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-08-22 18:19:12,214 INFO L480 AbstractCegarLoop]: Interpolant automaton has 26 states. [2020-08-22 18:19:12,214 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-08-22 18:19:12,214 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-08-22 18:19:12,214 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2020-08-22 18:19:12,216 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-08-22 18:19:23,370 WARN L193 SmtUtils]: Spent 11.11 s on a formula simplification. DAG size of input: 1579 DAG size of output: 1144 [2020-08-22 18:19:23,764 WARN L193 SmtUtils]: Spent 201.00 ms on a formula simplification. DAG size of input: 256 DAG size of output: 239 [2020-08-22 18:19:24,630 WARN L193 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 241 DAG size of output: 234 [2020-08-22 18:19:33,905 WARN L193 SmtUtils]: Spent 7.75 s on a formula simplification. DAG size of input: 1319 DAG size of output: 962 [2020-08-22 18:19:34,353 WARN L193 SmtUtils]: Spent 116.00 ms on a formula simplification. DAG size of input: 287 DAG size of output: 259 [2020-08-22 18:19:34,587 WARN L193 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 277 DAG size of output: 254 [2020-08-22 18:19:34,906 WARN L193 SmtUtils]: Spent 118.00 ms on a formula simplification. DAG size of input: 268 DAG size of output: 248 [2020-08-22 18:19:37,643 WARN L193 SmtUtils]: Spent 110.00 ms on a formula simplification. DAG size of input: 247 DAG size of output: 245 [2020-08-22 18:19:38,136 WARN L193 SmtUtils]: Spent 139.00 ms on a formula simplification. DAG size of input: 260 DAG size of output: 246 [2020-08-22 18:19:38,404 WARN L193 SmtUtils]: Spent 211.00 ms on a formula simplification. DAG size of input: 253 DAG size of output: 250 [2020-08-22 18:19:38,616 WARN L193 SmtUtils]: Spent 139.00 ms on a formula simplification. DAG size of input: 262 DAG size of output: 249 [2020-08-22 18:19:38,932 WARN L193 SmtUtils]: Spent 112.00 ms on a formula simplification. DAG size of input: 249 DAG size of output: 246 [2020-08-22 18:19:40,748 WARN L193 SmtUtils]: Spent 141.00 ms on a formula simplification. DAG size of input: 253 DAG size of output: 252 [2020-08-22 18:19:41,198 WARN L193 SmtUtils]: Spent 161.00 ms on a formula simplification. DAG size of input: 258 DAG size of output: 256 [2020-08-22 18:19:41,520 WARN L193 SmtUtils]: Spent 211.00 ms on a formula simplification. DAG size of input: 275 DAG size of output: 262 [2020-08-22 18:19:41,784 WARN L193 SmtUtils]: Spent 203.00 ms on a formula simplification. DAG size of input: 259 DAG size of output: 257 [2020-08-22 18:19:42,035 WARN L193 SmtUtils]: Spent 146.00 ms on a formula simplification. DAG size of input: 277 DAG size of output: 260 [2020-08-22 18:19:42,230 WARN L193 SmtUtils]: Spent 125.00 ms on a formula simplification. DAG size of input: 249 DAG size of output: 248 [2020-08-22 18:19:42,461 WARN L193 SmtUtils]: Spent 159.00 ms on a formula simplification. DAG size of input: 255 DAG size of output: 253 [2020-08-22 18:19:43,766 WARN L193 SmtUtils]: Spent 126.00 ms on a formula simplification. DAG size of input: 270 DAG size of output: 237 [2020-08-22 18:19:44,040 WARN L193 SmtUtils]: Spent 121.00 ms on a formula simplification. DAG size of input: 272 DAG size of output: 238 [2020-08-22 18:19:46,070 WARN L193 SmtUtils]: Spent 119.00 ms on a formula simplification. DAG size of input: 249 DAG size of output: 244 [2020-08-22 18:19:46,334 WARN L193 SmtUtils]: Spent 142.00 ms on a formula simplification. DAG size of input: 254 DAG size of output: 248 [2020-08-22 18:19:47,048 WARN L193 SmtUtils]: Spent 142.00 ms on a formula simplification. DAG size of input: 253 DAG size of output: 247 [2020-08-22 18:19:47,592 WARN L193 SmtUtils]: Spent 127.00 ms on a formula simplification. DAG size of input: 257 DAG size of output: 249 [2020-08-22 18:19:47,850 WARN L193 SmtUtils]: Spent 147.00 ms on a formula simplification. DAG size of input: 264 DAG size of output: 246 [2020-08-22 18:19:47,984 WARN L193 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 241 DAG size of output: 231 [2020-08-22 18:19:48,223 WARN L193 SmtUtils]: Spent 164.00 ms on a formula simplification. DAG size of input: 258 DAG size of output: 253 [2020-08-22 18:19:48,564 WARN L193 SmtUtils]: Spent 153.00 ms on a formula simplification. DAG size of input: 266 DAG size of output: 246 [2020-08-22 18:19:49,261 WARN L193 SmtUtils]: Spent 277.00 ms on a formula simplification. DAG size of input: 249 DAG size of output: 244 [2020-08-22 18:19:49,503 WARN L193 SmtUtils]: Spent 121.00 ms on a formula simplification. DAG size of input: 245 DAG size of output: 235 [2020-08-22 18:19:49,716 WARN L193 SmtUtils]: Spent 211.00 ms on a formula simplification. DAG size of input: 254 DAG size of output: 248 [2020-08-22 18:19:50,175 WARN L193 SmtUtils]: Spent 143.00 ms on a formula simplification. DAG size of input: 247 DAG size of output: 237 [2020-08-22 18:19:50,813 WARN L193 SmtUtils]: Spent 141.00 ms on a formula simplification. DAG size of input: 253 DAG size of output: 247 [2020-08-22 18:19:51,346 WARN L193 SmtUtils]: Spent 126.00 ms on a formula simplification. DAG size of input: 257 DAG size of output: 249 [2020-08-22 18:19:51,605 WARN L193 SmtUtils]: Spent 147.00 ms on a formula simplification. DAG size of input: 264 DAG size of output: 246 [2020-08-22 18:19:52,001 WARN L193 SmtUtils]: Spent 246.00 ms on a formula simplification. DAG size of input: 258 DAG size of output: 253 [2020-08-22 18:19:52,340 WARN L193 SmtUtils]: Spent 151.00 ms on a formula simplification. DAG size of input: 266 DAG size of output: 246 [2020-08-22 18:20:13,626 WARN L193 SmtUtils]: Spent 10.44 s on a formula simplification. DAG size of input: 1579 DAG size of output: 1144 [2020-08-22 18:20:18,356 WARN L193 SmtUtils]: Spent 4.37 s on a formula simplification. DAG size of input: 1094 DAG size of output: 770 [2020-08-22 18:20:25,974 WARN L193 SmtUtils]: Spent 7.60 s on a formula simplification. DAG size of input: 1319 DAG size of output: 962 [2020-08-22 18:20:28,533 WARN L193 SmtUtils]: Spent 132.00 ms on a formula simplification. DAG size of input: 262 DAG size of output: 249 [2020-08-22 18:20:28,667 WARN L193 SmtUtils]: Spent 131.00 ms on a formula simplification. DAG size of input: 262 DAG size of output: 249 [2020-08-22 18:20:28,886 WARN L193 SmtUtils]: Spent 132.00 ms on a formula simplification. DAG size of input: 262 DAG size of output: 249 [2020-08-22 18:20:29,021 WARN L193 SmtUtils]: Spent 132.00 ms on a formula simplification. DAG size of input: 262 DAG size of output: 249 [2020-08-22 18:20:39,235 WARN L193 SmtUtils]: Spent 10.10 s on a formula simplification. DAG size of input: 1579 DAG size of output: 1144 [2020-08-22 18:20:56,443 WARN L193 SmtUtils]: Spent 12.08 s on a formula simplification. DAG size of input: 1654 DAG size of output: 1192 [2020-08-22 18:21:00,443 WARN L193 SmtUtils]: Spent 139.00 ms on a formula simplification. DAG size of input: 260 DAG size of output: 246 [2020-08-22 18:21:00,714 WARN L193 SmtUtils]: Spent 139.00 ms on a formula simplification. DAG size of input: 260 DAG size of output: 246 [2020-08-22 18:21:00,852 WARN L193 SmtUtils]: Spent 137.00 ms on a formula simplification. DAG size of input: 260 DAG size of output: 246 [2020-08-22 18:21:00,991 WARN L193 SmtUtils]: Spent 132.00 ms on a formula simplification. DAG size of input: 262 DAG size of output: 249 [2020-08-22 18:21:01,491 WARN L193 SmtUtils]: Spent 132.00 ms on a formula simplification. DAG size of input: 262 DAG size of output: 249 [2020-08-22 18:21:01,628 WARN L193 SmtUtils]: Spent 135.00 ms on a formula simplification. DAG size of input: 262 DAG size of output: 249 [2020-08-22 18:21:02,156 WARN L193 SmtUtils]: Spent 139.00 ms on a formula simplification. DAG size of input: 260 DAG size of output: 246 [2020-08-22 18:21:02,298 WARN L193 SmtUtils]: Spent 140.00 ms on a formula simplification. DAG size of input: 260 DAG size of output: 246 [2020-08-22 18:21:02,886 WARN L193 SmtUtils]: Spent 137.00 ms on a formula simplification. DAG size of input: 260 DAG size of output: 246 [2020-08-22 18:21:03,049 WARN L193 SmtUtils]: Spent 144.00 ms on a formula simplification. DAG size of input: 260 DAG size of output: 246 [2020-08-22 18:21:03,390 WARN L193 SmtUtils]: Spent 130.00 ms on a formula simplification. DAG size of input: 262 DAG size of output: 249 [2020-08-22 18:21:03,562 WARN L193 SmtUtils]: Spent 130.00 ms on a formula simplification. DAG size of input: 262 DAG size of output: 249 [2020-08-22 18:21:04,941 WARN L193 SmtUtils]: Spent 134.00 ms on a formula simplification. DAG size of input: 275 DAG size of output: 261 [2020-08-22 18:21:05,151 WARN L193 SmtUtils]: Spent 146.00 ms on a formula simplification. DAG size of input: 277 DAG size of output: 263 [2020-08-22 18:21:06,353 WARN L193 SmtUtils]: Spent 109.00 ms on a formula simplification. DAG size of input: 247 DAG size of output: 245 [2020-08-22 18:21:06,464 WARN L193 SmtUtils]: Spent 109.00 ms on a formula simplification. DAG size of input: 247 DAG size of output: 245 [2020-08-22 18:21:06,999 WARN L193 SmtUtils]: Spent 111.00 ms on a formula simplification. DAG size of input: 247 DAG size of output: 245 [2020-08-22 18:21:07,109 WARN L193 SmtUtils]: Spent 108.00 ms on a formula simplification. DAG size of input: 247 DAG size of output: 245 [2020-08-22 18:21:07,652 WARN L193 SmtUtils]: Spent 136.00 ms on a formula simplification. DAG size of input: 260 DAG size of output: 246 [2020-08-22 18:21:07,813 WARN L193 SmtUtils]: Spent 144.00 ms on a formula simplification. DAG size of input: 253 DAG size of output: 250 [2020-08-22 18:21:07,961 WARN L193 SmtUtils]: Spent 145.00 ms on a formula simplification. DAG size of input: 253 DAG size of output: 250 [2020-08-22 18:21:08,101 WARN L193 SmtUtils]: Spent 138.00 ms on a formula simplification. DAG size of input: 260 DAG size of output: 246 [2020-08-22 18:21:08,483 WARN L193 SmtUtils]: Spent 130.00 ms on a formula simplification. DAG size of input: 262 DAG size of output: 249 [2020-08-22 18:21:08,615 WARN L193 SmtUtils]: Spent 130.00 ms on a formula simplification. DAG size of input: 262 DAG size of output: 249 [2020-08-22 18:21:08,926 WARN L193 SmtUtils]: Spent 140.00 ms on a formula simplification. DAG size of input: 260 DAG size of output: 246 [2020-08-22 18:21:09,065 WARN L193 SmtUtils]: Spent 137.00 ms on a formula simplification. DAG size of input: 260 DAG size of output: 246 [2020-08-22 18:21:09,325 WARN L193 SmtUtils]: Spent 110.00 ms on a formula simplification. DAG size of input: 249 DAG size of output: 246 [2020-08-22 18:21:09,510 WARN L193 SmtUtils]: Spent 113.00 ms on a formula simplification. DAG size of input: 249 DAG size of output: 246 [2020-08-22 18:21:09,642 WARN L193 SmtUtils]: Spent 131.00 ms on a formula simplification. DAG size of input: 262 DAG size of output: 249 [2020-08-22 18:21:09,776 WARN L193 SmtUtils]: Spent 132.00 ms on a formula simplification. DAG size of input: 262 DAG size of output: 249 [2020-08-22 18:21:10,198 WARN L193 SmtUtils]: Spent 139.00 ms on a formula simplification. DAG size of input: 260 DAG size of output: 246 [2020-08-22 18:21:10,339 WARN L193 SmtUtils]: Spent 139.00 ms on a formula simplification. DAG size of input: 260 DAG size of output: 246 [2020-08-22 18:21:10,908 WARN L193 SmtUtils]: Spent 139.00 ms on a formula simplification. DAG size of input: 260 DAG size of output: 246 [2020-08-22 18:21:11,062 WARN L193 SmtUtils]: Spent 137.00 ms on a formula simplification. DAG size of input: 260 DAG size of output: 246 [2020-08-22 18:21:11,548 WARN L193 SmtUtils]: Spent 130.00 ms on a formula simplification. DAG size of input: 262 DAG size of output: 249 [2020-08-22 18:21:11,679 WARN L193 SmtUtils]: Spent 130.00 ms on a formula simplification. DAG size of input: 262 DAG size of output: 249 [2020-08-22 18:21:12,224 WARN L193 SmtUtils]: Spent 115.00 ms on a formula simplification. DAG size of input: 287 DAG size of output: 259 [2020-08-22 18:21:12,456 WARN L193 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 277 DAG size of output: 254 [2020-08-22 18:21:25,210 WARN L193 SmtUtils]: Spent 7.07 s on a formula simplification. DAG size of input: 1255 DAG size of output: 936 [2020-08-22 18:21:37,497 WARN L193 SmtUtils]: Spent 10.22 s on a formula simplification. DAG size of input: 1579 DAG size of output: 1144 [2020-08-22 18:21:47,665 WARN L193 SmtUtils]: Spent 10.16 s on a formula simplification. DAG size of input: 1579 DAG size of output: 1144 [2020-08-22 18:22:00,120 WARN L193 SmtUtils]: Spent 4.40 s on a formula simplification. DAG size of input: 1094 DAG size of output: 770 [2020-08-22 18:22:04,858 WARN L193 SmtUtils]: Spent 4.73 s on a formula simplification. DAG size of input: 982 DAG size of output: 719 [2020-08-22 18:22:09,262 WARN L193 SmtUtils]: Spent 4.40 s on a formula simplification. DAG size of input: 1094 DAG size of output: 770 [2020-08-22 18:22:17,707 WARN L193 SmtUtils]: Spent 7.68 s on a formula simplification. DAG size of input: 1319 DAG size of output: 962 [2020-08-22 18:22:25,352 WARN L193 SmtUtils]: Spent 7.64 s on a formula simplification. DAG size of input: 1319 DAG size of output: 962 [2020-08-22 18:22:25,764 WARN L193 SmtUtils]: Spent 127.00 ms on a formula simplification. DAG size of input: 249 DAG size of output: 249 [2020-08-22 18:22:26,313 WARN L193 SmtUtils]: Spent 121.00 ms on a formula simplification. DAG size of input: 251 DAG size of output: 251 [2020-08-22 18:22:28,225 WARN L193 SmtUtils]: Spent 138.00 ms on a formula simplification. DAG size of input: 260 DAG size of output: 246 [2020-08-22 18:22:28,444 WARN L193 SmtUtils]: Spent 139.00 ms on a formula simplification. DAG size of input: 260 DAG size of output: 246 [2020-08-22 18:22:29,323 WARN L193 SmtUtils]: Spent 139.00 ms on a formula simplification. DAG size of input: 260 DAG size of output: 246 [2020-08-22 18:22:29,534 WARN L193 SmtUtils]: Spent 139.00 ms on a formula simplification. DAG size of input: 260 DAG size of output: 246 [2020-08-22 18:22:29,829 WARN L193 SmtUtils]: Spent 137.00 ms on a formula simplification. DAG size of input: 260 DAG size of output: 246 [2020-08-22 18:22:29,971 WARN L193 SmtUtils]: Spent 139.00 ms on a formula simplification. DAG size of input: 260 DAG size of output: 246 [2020-08-22 18:22:30,113 WARN L193 SmtUtils]: Spent 140.00 ms on a formula simplification. DAG size of input: 260 DAG size of output: 246 [2020-08-22 18:22:31,071 WARN L193 SmtUtils]: Spent 140.00 ms on a formula simplification. DAG size of input: 271 DAG size of output: 260 [2020-08-22 18:22:31,258 WARN L193 SmtUtils]: Spent 142.00 ms on a formula simplification. DAG size of input: 273 DAG size of output: 261 [2020-08-22 18:22:32,356 WARN L193 SmtUtils]: Spent 138.00 ms on a formula simplification. DAG size of input: 271 DAG size of output: 260 [2020-08-22 18:22:32,630 WARN L193 SmtUtils]: Spent 144.00 ms on a formula simplification. DAG size of input: 273 DAG size of output: 261 [2020-08-22 18:22:33,222 WARN L193 SmtUtils]: Spent 133.00 ms on a formula simplification. DAG size of input: 275 DAG size of output: 261 [2020-08-22 18:22:33,423 WARN L193 SmtUtils]: Spent 137.00 ms on a formula simplification. DAG size of input: 277 DAG size of output: 263 [2020-08-22 18:22:33,927 WARN L193 SmtUtils]: Spent 132.00 ms on a formula simplification. DAG size of input: 275 DAG size of output: 261 [2020-08-22 18:22:34,130 WARN L193 SmtUtils]: Spent 138.00 ms on a formula simplification. DAG size of input: 277 DAG size of output: 263 [2020-08-22 18:22:38,735 WARN L193 SmtUtils]: Spent 133.00 ms on a formula simplification. DAG size of input: 277 DAG size of output: 263 [2020-08-22 18:22:38,946 WARN L193 SmtUtils]: Spent 146.00 ms on a formula simplification. DAG size of input: 279 DAG size of output: 267 [2020-08-22 18:22:40,406 WARN L193 SmtUtils]: Spent 152.00 ms on a formula simplification. DAG size of input: 250 DAG size of output: 249 [2020-08-22 18:22:40,779 WARN L193 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 255 DAG size of output: 248 [2020-08-22 18:22:41,030 WARN L193 SmtUtils]: Spent 148.00 ms on a formula simplification. DAG size of input: 269 DAG size of output: 257 [2020-08-22 18:22:41,295 WARN L193 SmtUtils]: Spent 203.00 ms on a formula simplification. DAG size of input: 256 DAG size of output: 254 [2020-08-22 18:22:41,550 WARN L193 SmtUtils]: Spent 161.00 ms on a formula simplification. DAG size of input: 271 DAG size of output: 262 [2020-08-22 18:22:41,721 WARN L193 SmtUtils]: Spent 113.00 ms on a formula simplification. DAG size of input: 246 DAG size of output: 245 [2020-08-22 18:22:41,935 WARN L193 SmtUtils]: Spent 148.00 ms on a formula simplification. DAG size of input: 252 DAG size of output: 250 [2020-08-22 18:22:47,099 WARN L193 SmtUtils]: Spent 4.37 s on a formula simplification. DAG size of input: 1094 DAG size of output: 770 [2020-08-22 18:22:51,673 WARN L193 SmtUtils]: Spent 4.38 s on a formula simplification. DAG size of input: 1094 DAG size of output: 770 [2020-08-22 18:22:56,085 WARN L193 SmtUtils]: Spent 4.40 s on a formula simplification. DAG size of input: 1094 DAG size of output: 770 [2020-08-22 18:22:57,651 WARN L193 SmtUtils]: Spent 137.00 ms on a formula simplification. DAG size of input: 260 DAG size of output: 246 [2020-08-22 18:22:57,867 WARN L193 SmtUtils]: Spent 136.00 ms on a formula simplification. DAG size of input: 260 DAG size of output: 246 [2020-08-22 18:22:58,907 WARN L193 SmtUtils]: Spent 139.00 ms on a formula simplification. DAG size of input: 260 DAG size of output: 246 [2020-08-22 18:22:59,120 WARN L193 SmtUtils]: Spent 138.00 ms on a formula simplification. DAG size of input: 260 DAG size of output: 246 [2020-08-22 18:22:59,412 WARN L193 SmtUtils]: Spent 138.00 ms on a formula simplification. DAG size of input: 260 DAG size of output: 246 [2020-08-22 18:22:59,553 WARN L193 SmtUtils]: Spent 138.00 ms on a formula simplification. DAG size of input: 260 DAG size of output: 246 [2020-08-22 18:22:59,694 WARN L193 SmtUtils]: Spent 139.00 ms on a formula simplification. DAG size of input: 260 DAG size of output: 246 [2020-08-22 18:22:59,931 WARN L193 SmtUtils]: Spent 132.00 ms on a formula simplification. DAG size of input: 262 DAG size of output: 249 [2020-08-22 18:23:00,110 WARN L193 SmtUtils]: Spent 132.00 ms on a formula simplification. DAG size of input: 262 DAG size of output: 249 [2020-08-22 18:23:00,375 WARN L193 SmtUtils]: Spent 130.00 ms on a formula simplification. DAG size of input: 262 DAG size of output: 249 [2020-08-22 18:23:00,509 WARN L193 SmtUtils]: Spent 132.00 ms on a formula simplification. DAG size of input: 262 DAG size of output: 249 [2020-08-22 18:23:00,959 WARN L193 SmtUtils]: Spent 157.00 ms on a formula simplification. DAG size of input: 259 DAG size of output: 255 [2020-08-22 18:23:01,301 WARN L193 SmtUtils]: Spent 129.00 ms on a formula simplification. DAG size of input: 253 DAG size of output: 249 [2020-08-22 18:23:01,425 WARN L193 SmtUtils]: Spent 122.00 ms on a formula simplification. DAG size of input: 253 DAG size of output: 249 [2020-08-22 18:23:01,758 WARN L193 SmtUtils]: Spent 143.00 ms on a formula simplification. DAG size of input: 257 DAG size of output: 253 [2020-08-22 18:23:02,095 WARN L193 SmtUtils]: Spent 127.00 ms on a formula simplification. DAG size of input: 255 DAG size of output: 251 [2020-08-22 18:23:02,227 WARN L193 SmtUtils]: Spent 129.00 ms on a formula simplification. DAG size of input: 255 DAG size of output: 251 [2020-08-22 18:23:04,931 WARN L193 SmtUtils]: Spent 111.00 ms on a formula simplification. DAG size of input: 249 DAG size of output: 246 [2020-08-22 18:23:05,394 WARN L193 SmtUtils]: Spent 110.00 ms on a formula simplification. DAG size of input: 247 DAG size of output: 245 [2020-08-22 18:23:06,025 WARN L193 SmtUtils]: Spent 140.00 ms on a formula simplification. DAG size of input: 260 DAG size of output: 246 [2020-08-22 18:23:06,236 WARN L193 SmtUtils]: Spent 143.00 ms on a formula simplification. DAG size of input: 253 DAG size of output: 250 [2020-08-22 18:23:06,491 WARN L193 SmtUtils]: Spent 132.00 ms on a formula simplification. DAG size of input: 262 DAG size of output: 249 [2020-08-22 18:23:17,104 WARN L193 SmtUtils]: Spent 10.16 s on a formula simplification. DAG size of input: 1579 DAG size of output: 1144 [2020-08-22 18:23:19,139 WARN L193 SmtUtils]: Spent 115.00 ms on a formula simplification. DAG size of input: 264 DAG size of output: 237 [2020-08-22 18:23:19,606 WARN L193 SmtUtils]: Spent 466.00 ms on a formula simplification that was a NOOP. DAG size: 1 [2020-08-22 18:23:19,878 WARN L193 SmtUtils]: Spent 123.00 ms on a formula simplification. DAG size of input: 266 DAG size of output: 238 [2020-08-22 18:23:30,314 WARN L193 SmtUtils]: Spent 10.11 s on a formula simplification. DAG size of input: 1579 DAG size of output: 1144 [2020-08-22 18:23:42,521 WARN L193 SmtUtils]: Spent 10.13 s on a formula simplification. DAG size of input: 1579 DAG size of output: 1144 [2020-08-22 18:23:52,795 WARN L193 SmtUtils]: Spent 10.25 s on a formula simplification. DAG size of input: 1579 DAG size of output: 1144 [2020-08-22 18:23:53,147 WARN L193 SmtUtils]: Spent 126.00 ms on a formula simplification. DAG size of input: 267 DAG size of output: 237 [2020-08-22 18:23:53,419 WARN L193 SmtUtils]: Spent 122.00 ms on a formula simplification. DAG size of input: 269 DAG size of output: 238 [2020-08-22 18:23:54,123 WARN L193 SmtUtils]: Spent 111.00 ms on a formula simplification. DAG size of input: 247 DAG size of output: 245 [2020-08-22 18:23:54,631 WARN L193 SmtUtils]: Spent 150.00 ms on a formula simplification. DAG size of input: 260 DAG size of output: 246 [2020-08-22 18:23:54,829 WARN L193 SmtUtils]: Spent 145.00 ms on a formula simplification. DAG size of input: 253 DAG size of output: 250 [2020-08-22 18:23:55,036 WARN L193 SmtUtils]: Spent 132.00 ms on a formula simplification. DAG size of input: 262 DAG size of output: 249 [2020-08-22 18:23:55,353 WARN L193 SmtUtils]: Spent 113.00 ms on a formula simplification. DAG size of input: 249 DAG size of output: 246 [2020-08-22 18:23:56,441 WARN L193 SmtUtils]: Spent 121.00 ms on a formula simplification. DAG size of input: 270 DAG size of output: 237 [2020-08-22 18:23:56,713 WARN L193 SmtUtils]: Spent 119.00 ms on a formula simplification. DAG size of input: 272 DAG size of output: 238 [2020-08-22 18:23:57,531 WARN L193 SmtUtils]: Spent 139.00 ms on a formula simplification. DAG size of input: 253 DAG size of output: 252 [2020-08-22 18:23:57,974 WARN L193 SmtUtils]: Spent 161.00 ms on a formula simplification. DAG size of input: 258 DAG size of output: 256 [2020-08-22 18:23:58,230 WARN L193 SmtUtils]: Spent 144.00 ms on a formula simplification. DAG size of input: 275 DAG size of output: 262 [2020-08-22 18:23:58,498 WARN L193 SmtUtils]: Spent 204.00 ms on a formula simplification. DAG size of input: 259 DAG size of output: 257 [2020-08-22 18:23:58,745 WARN L193 SmtUtils]: Spent 146.00 ms on a formula simplification. DAG size of input: 277 DAG size of output: 260 [2020-08-22 18:23:58,923 WARN L193 SmtUtils]: Spent 115.00 ms on a formula simplification. DAG size of input: 249 DAG size of output: 248 [2020-08-22 18:23:59,150 WARN L193 SmtUtils]: Spent 158.00 ms on a formula simplification. DAG size of input: 255 DAG size of output: 253 [2020-08-22 18:23:59,339 WARN L193 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 241 DAG size of output: 238 [2020-08-22 18:24:23,477 WARN L193 SmtUtils]: Spent 23.42 s on a formula simplification. DAG size of input: 985 DAG size of output: 61 [2020-08-22 18:24:26,408 WARN L193 SmtUtils]: Spent 2.92 s on a formula simplification. DAG size of input: 268 DAG size of output: 43 [2020-08-22 18:24:28,387 WARN L193 SmtUtils]: Spent 1.96 s on a formula simplification. DAG size of input: 188 DAG size of output: 37 [2020-08-22 18:24:28,789 WARN L193 SmtUtils]: Spent 380.00 ms on a formula simplification. DAG size of input: 253 DAG size of output: 1 [2020-08-22 18:24:29,918 WARN L193 SmtUtils]: Spent 1.12 s on a formula simplification. DAG size of input: 247 DAG size of output: 47 [2020-08-22 18:24:30,097 WARN L193 SmtUtils]: Spent 177.00 ms on a formula simplification. DAG size of input: 154 DAG size of output: 27 [2020-08-22 18:24:30,277 WARN L193 SmtUtils]: Spent 178.00 ms on a formula simplification. DAG size of input: 154 DAG size of output: 27 [2020-08-22 18:24:48,904 WARN L193 SmtUtils]: Spent 18.62 s on a formula simplification. DAG size of input: 815 DAG size of output: 52 [2020-08-22 18:24:51,568 WARN L193 SmtUtils]: Spent 2.65 s on a formula simplification. DAG size of input: 266 DAG size of output: 42 [2020-08-22 18:24:52,038 WARN L193 SmtUtils]: Spent 469.00 ms on a formula simplification. DAG size of input: 151 DAG size of output: 27 [2020-08-22 18:24:53,233 WARN L193 SmtUtils]: Spent 1.17 s on a formula simplification. DAG size of input: 208 DAG size of output: 45 [2020-08-22 18:24:55,476 WARN L193 SmtUtils]: Spent 2.22 s on a formula simplification. DAG size of input: 264 DAG size of output: 41 [2020-08-22 18:24:55,710 WARN L193 SmtUtils]: Spent 151.00 ms on a formula simplification. DAG size of input: 200 DAG size of output: 1 [2020-08-22 18:24:57,496 WARN L193 SmtUtils]: Spent 1.76 s on a formula simplification. DAG size of input: 432 DAG size of output: 1 [2020-08-22 18:24:57,905 WARN L193 SmtUtils]: Spent 407.00 ms on a formula simplification. DAG size of input: 151 DAG size of output: 27 [2020-08-22 18:24:58,443 WARN L193 SmtUtils]: Spent 535.00 ms on a formula simplification. DAG size of input: 167 DAG size of output: 22 [2020-08-22 18:24:59,272 WARN L193 SmtUtils]: Spent 822.00 ms on a formula simplification. DAG size of input: 235 DAG size of output: 27 [2020-08-22 18:25:04,007 WARN L193 SmtUtils]: Spent 4.71 s on a formula simplification. DAG size of input: 470 DAG size of output: 58 [2020-08-22 18:25:05,928 WARN L193 SmtUtils]: Spent 1.92 s on a formula simplification. DAG size of input: 250 DAG size of output: 37 [2020-08-22 18:25:06,107 WARN L193 SmtUtils]: Spent 149.00 ms on a formula simplification. DAG size of input: 51 DAG size of output: 23 [2020-08-22 18:25:08,395 WARN L193 SmtUtils]: Spent 2.28 s on a formula simplification. DAG size of input: 264 DAG size of output: 41 [2020-08-22 18:25:10,888 WARN L193 SmtUtils]: Spent 2.47 s on a formula simplification. DAG size of input: 208 DAG size of output: 43 [2020-08-22 18:25:11,093 WARN L193 SmtUtils]: Spent 177.00 ms on a formula simplification. DAG size of input: 154 DAG size of output: 27 [2020-08-22 18:25:15,731 WARN L193 SmtUtils]: Spent 4.62 s on a formula simplification. DAG size of input: 425 DAG size of output: 51 [2020-08-22 18:25:16,753 WARN L193 SmtUtils]: Spent 1.01 s on a formula simplification. DAG size of input: 257 DAG size of output: 44 [2020-08-22 18:25:21,453 WARN L193 SmtUtils]: Spent 4.68 s on a formula simplification. DAG size of input: 425 DAG size of output: 51 [2020-08-22 18:25:21,614 WARN L193 SmtUtils]: Spent 150.00 ms on a formula simplification. DAG size of input: 200 DAG size of output: 1 [2020-08-22 18:25:23,697 WARN L193 SmtUtils]: Spent 2.08 s on a formula simplification. DAG size of input: 191 DAG size of output: 40 [2020-08-22 18:25:25,934 WARN L193 SmtUtils]: Spent 2.23 s on a formula simplification. DAG size of input: 263 DAG size of output: 45 [2020-08-22 18:25:26,329 WARN L193 SmtUtils]: Spent 386.00 ms on a formula simplification. DAG size of input: 253 DAG size of output: 1 [2020-08-22 18:25:27,588 WARN L193 SmtUtils]: Spent 1.24 s on a formula simplification. DAG size of input: 208 DAG size of output: 45 [2020-08-22 18:25:29,658 WARN L193 SmtUtils]: Spent 2.04 s on a formula simplification. DAG size of input: 247 DAG size of output: 64 [2020-08-22 18:25:31,687 WARN L193 SmtUtils]: Spent 2.00 s on a formula simplification. DAG size of input: 285 DAG size of output: 64 [2020-08-22 18:25:33,072 WARN L193 SmtUtils]: Spent 1.37 s on a formula simplification. DAG size of input: 232 DAG size of output: 50 [2020-08-22 18:25:33,259 WARN L193 SmtUtils]: Spent 179.00 ms on a formula simplification. DAG size of input: 185 DAG size of output: 1 [2020-08-22 18:25:35,337 WARN L193 SmtUtils]: Spent 2.07 s on a formula simplification. DAG size of input: 215 DAG size of output: 40 [2020-08-22 18:25:37,400 WARN L193 SmtUtils]: Spent 2.05 s on a formula simplification. DAG size of input: 215 DAG size of output: 40 [2020-08-22 18:25:39,513 WARN L193 SmtUtils]: Spent 2.10 s on a formula simplification. DAG size of input: 222 DAG size of output: 45 [2020-08-22 18:25:39,700 WARN L193 SmtUtils]: Spent 185.00 ms on a formula simplification. DAG size of input: 147 DAG size of output: 19 [2020-08-22 18:25:41,425 WARN L193 SmtUtils]: Spent 1.70 s on a formula simplification. DAG size of input: 287 DAG size of output: 64 [2020-08-22 18:25:41,811 WARN L193 SmtUtils]: Spent 382.00 ms on a formula simplification. DAG size of input: 165 DAG size of output: 22 [2020-08-22 18:25:43,979 WARN L193 SmtUtils]: Spent 2.14 s on a formula simplification. DAG size of input: 191 DAG size of output: 41 [2020-08-22 18:25:44,887 WARN L193 SmtUtils]: Spent 904.00 ms on a formula simplification. DAG size of input: 153 DAG size of output: 23 [2020-08-22 18:25:45,510 WARN L193 SmtUtils]: Spent 618.00 ms on a formula simplification. DAG size of input: 171 DAG size of output: 27 [2020-08-22 18:26:08,989 WARN L193 SmtUtils]: Spent 23.43 s on a formula simplification. DAG size of input: 985 DAG size of output: 61 [2020-08-22 18:26:10,533 WARN L193 SmtUtils]: Spent 1.52 s on a formula simplification. DAG size of input: 274 DAG size of output: 48 [2020-08-22 18:26:20,444 WARN L193 SmtUtils]: Spent 9.90 s on a formula simplification. DAG size of input: 609 DAG size of output: 51 [2020-08-22 18:26:20,656 WARN L193 SmtUtils]: Spent 210.00 ms on a formula simplification. DAG size of input: 150 DAG size of output: 22 [2020-08-22 18:26:39,295 WARN L193 SmtUtils]: Spent 18.63 s on a formula simplification. DAG size of input: 815 DAG size of output: 52 [2020-08-22 18:26:40,477 WARN L193 SmtUtils]: Spent 1.17 s on a formula simplification. DAG size of input: 264 DAG size of output: 47 [2020-08-22 18:26:42,581 WARN L193 SmtUtils]: Spent 2.09 s on a formula simplification. DAG size of input: 247 DAG size of output: 47 [2020-08-22 18:26:44,639 WARN L193 SmtUtils]: Spent 2.05 s on a formula simplification. DAG size of input: 247 DAG size of output: 47 [2020-08-22 18:26:46,384 WARN L193 SmtUtils]: Spent 1.74 s on a formula simplification. DAG size of input: 245 DAG size of output: 31 [2020-08-22 18:26:48,362 WARN L193 SmtUtils]: Spent 1.95 s on a formula simplification. DAG size of input: 244 DAG size of output: 43 [2020-08-22 18:26:48,781 WARN L193 SmtUtils]: Spent 416.00 ms on a formula simplification. DAG size of input: 151 DAG size of output: 27 [2020-08-22 18:26:49,338 WARN L193 SmtUtils]: Spent 554.00 ms on a formula simplification. DAG size of input: 169 DAG size of output: 25 [2020-08-22 18:26:49,938 WARN L193 SmtUtils]: Spent 560.00 ms on a formula simplification. DAG size of input: 167 DAG size of output: 22 [2020-08-22 18:26:51,470 WARN L193 SmtUtils]: Spent 1.51 s on a formula simplification. DAG size of input: 301 DAG size of output: 42 [2020-08-22 18:27:14,947 WARN L193 SmtUtils]: Spent 23.47 s on a formula simplification. DAG size of input: 985 DAG size of output: 61 [2020-08-22 18:27:16,628 WARN L193 SmtUtils]: Spent 1.67 s on a formula simplification. DAG size of input: 243 DAG size of output: 27 [2020-08-22 18:27:18,299 WARN L193 SmtUtils]: Spent 1.67 s on a formula simplification. DAG size of input: 243 DAG size of output: 27 [2020-08-22 18:27:18,457 WARN L193 SmtUtils]: Spent 151.00 ms on a formula simplification. DAG size of input: 189 DAG size of output: 1 [2020-08-22 18:27:18,879 WARN L193 SmtUtils]: Spent 412.00 ms on a formula simplification. DAG size of input: 151 DAG size of output: 27 [2020-08-22 18:27:19,283 WARN L193 SmtUtils]: Spent 397.00 ms on a formula simplification. DAG size of input: 253 DAG size of output: 1 [2020-08-22 18:27:21,264 WARN L193 SmtUtils]: Spent 1.97 s on a formula simplification. DAG size of input: 223 DAG size of output: 40 [2020-08-22 18:27:22,668 WARN L193 SmtUtils]: Spent 1.38 s on a formula simplification. DAG size of input: 232 DAG size of output: 50 [2020-08-22 18:27:51,790 WARN L193 SmtUtils]: Spent 29.11 s on a formula simplification. DAG size of input: 1010 DAG size of output: 64 [2020-08-22 18:27:51,950 WARN L193 SmtUtils]: Spent 153.00 ms on a formula simplification. DAG size of input: 189 DAG size of output: 1 [2020-08-22 18:27:52,783 WARN L193 SmtUtils]: Spent 827.00 ms on a formula simplification. DAG size of input: 235 DAG size of output: 27 [2020-08-22 18:27:53,968 WARN L193 SmtUtils]: Spent 1.17 s on a formula simplification. DAG size of input: 264 DAG size of output: 47 [2020-08-22 18:27:55,688 WARN L193 SmtUtils]: Spent 1.71 s on a formula simplification. DAG size of input: 245 DAG size of output: 32 [2020-08-22 18:27:56,916 WARN L193 SmtUtils]: Spent 1.22 s on a formula simplification. DAG size of input: 238 DAG size of output: 48 [2020-08-22 18:27:57,478 WARN L193 SmtUtils]: Spent 558.00 ms on a formula simplification. DAG size of input: 169 DAG size of output: 25 [2020-08-22 18:27:58,056 WARN L193 SmtUtils]: Spent 573.00 ms on a formula simplification. DAG size of input: 171 DAG size of output: 27 [2020-08-22 18:28:02,921 WARN L193 SmtUtils]: Spent 4.81 s on a formula simplification. DAG size of input: 410 DAG size of output: 47 [2020-08-22 18:28:03,114 WARN L193 SmtUtils]: Spent 191.00 ms on a formula simplification. DAG size of input: 156 DAG size of output: 29 [2020-08-22 18:28:05,108 WARN L193 SmtUtils]: Spent 1.97 s on a formula simplification. DAG size of input: 243 DAG size of output: 68 [2020-08-22 18:28:07,628 WARN L193 SmtUtils]: Spent 2.51 s on a formula simplification. DAG size of input: 267 DAG size of output: 45 [2020-08-22 18:28:07,901 WARN L193 SmtUtils]: Spent 266.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 36 [2020-08-22 18:28:09,272 WARN L193 SmtUtils]: Spent 1.36 s on a formula simplification. DAG size of input: 240 DAG size of output: 41 [2020-08-22 18:28:14,760 WARN L193 SmtUtils]: Spent 5.46 s on a formula simplification. DAG size of input: 441 DAG size of output: 59 [2020-08-22 18:28:17,487 WARN L193 SmtUtils]: Spent 2.72 s on a formula simplification. DAG size of input: 266 DAG size of output: 42 [2020-08-22 18:28:17,686 WARN L193 SmtUtils]: Spent 192.00 ms on a formula simplification. DAG size of input: 185 DAG size of output: 1 [2020-08-22 18:28:19,867 WARN L193 SmtUtils]: Spent 2.15 s on a formula simplification. DAG size of input: 191 DAG size of output: 42 [2020-08-22 18:28:21,930 WARN L193 SmtUtils]: Spent 2.06 s on a formula simplification. DAG size of input: 188 DAG size of output: 37 [2020-08-22 18:28:22,330 WARN L193 SmtUtils]: Spent 392.00 ms on a formula simplification. DAG size of input: 253 DAG size of output: 1 [2020-08-22 18:28:24,165 WARN L193 SmtUtils]: Spent 1.83 s on a formula simplification. DAG size of input: 252 DAG size of output: 51 [2020-08-22 18:28:26,233 WARN L193 SmtUtils]: Spent 2.06 s on a formula simplification. DAG size of input: 188 DAG size of output: 37 [2020-08-22 18:28:26,633 WARN L193 SmtUtils]: Spent 393.00 ms on a formula simplification. DAG size of input: 253 DAG size of output: 1 [2020-08-22 18:28:26,840 WARN L193 SmtUtils]: Spent 179.00 ms on a formula simplification. DAG size of input: 185 DAG size of output: 1 [2020-08-22 18:28:27,044 WARN L193 SmtUtils]: Spent 180.00 ms on a formula simplification. DAG size of input: 185 DAG size of output: 1 [2020-08-22 18:28:28,674 WARN L193 SmtUtils]: Spent 1.62 s on a formula simplification. DAG size of input: 212 DAG size of output: 45 [2020-08-22 18:28:47,103 WARN L193 SmtUtils]: Spent 18.40 s on a formula simplification. DAG size of input: 802 DAG size of output: 56