/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 --traceabstraction.compute.interpolants.along.a.counterexample Craig_NestedInterpolation --traceabstraction.use.separate.solver.for.trace.checks true -s ../../../trunk/examples/settings/automizer/acceleratedInterpolation/acceleratedInterpolationFastUPR_32.epf -i ../../../trunk/examples/svcomp/product-lines/minepump_spec5_product47.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-72570d3 [2020-08-22 21:34:02,742 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-08-22 21:34:02,745 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-08-22 21:34:02,785 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-08-22 21:34:02,785 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-08-22 21:34:02,796 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-08-22 21:34:02,797 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-08-22 21:34:02,799 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-08-22 21:34:02,800 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-08-22 21:34:02,801 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-08-22 21:34:02,802 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-08-22 21:34:02,803 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-08-22 21:34:02,803 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-08-22 21:34:02,804 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-08-22 21:34:02,805 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-08-22 21:34:02,806 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-08-22 21:34:02,807 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-08-22 21:34:02,808 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-08-22 21:34:02,809 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-08-22 21:34:02,811 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-08-22 21:34:02,812 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-08-22 21:34:02,813 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-08-22 21:34:02,814 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-08-22 21:34:02,815 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-08-22 21:34:02,817 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-08-22 21:34:02,817 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-08-22 21:34:02,817 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-08-22 21:34:02,818 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-08-22 21:34:02,819 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-08-22 21:34:02,819 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-08-22 21:34:02,820 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-08-22 21:34:02,823 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-08-22 21:34:02,824 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-08-22 21:34:02,824 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-08-22 21:34:02,825 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-08-22 21:34:02,826 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-08-22 21:34:02,826 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-08-22 21:34:02,826 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-08-22 21:34:02,827 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-08-22 21:34:02,827 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-08-22 21:34:02,828 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-08-22 21:34:02,829 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 21:34:02,837 INFO L113 SettingsManager]: Loading preferences was successful [2020-08-22 21:34:02,838 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-08-22 21:34:02,839 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-08-22 21:34:02,839 INFO L138 SettingsManager]: * sizeof long=4 [2020-08-22 21:34:02,839 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-08-22 21:34:02,840 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-08-22 21:34:02,840 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-08-22 21:34:02,840 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-08-22 21:34:02,840 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-08-22 21:34:02,840 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-08-22 21:34:02,840 INFO L138 SettingsManager]: * sizeof long double=12 [2020-08-22 21:34:02,841 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-08-22 21:34:02,841 INFO L138 SettingsManager]: * Use constant arrays=true [2020-08-22 21:34:02,841 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-08-22 21:34:02,841 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-08-22 21:34:02,842 INFO L138 SettingsManager]: * Size of a code block=SingleStatement [2020-08-22 21:34:02,842 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-08-22 21:34:02,842 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-08-22 21:34:02,842 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-08-22 21:34:02,842 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-08-22 21:34:02,842 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=AcceleratedInterpolation [2020-08-22 21:34:02,843 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-08-22 21:34:02,843 INFO L138 SettingsManager]: * Use separate solver for trace checks=false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use separate solver for trace checks -> true [2020-08-22 21:34:03,116 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-08-22 21:34:03,128 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-08-22 21:34:03,131 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-08-22 21:34:03,132 INFO L271 PluginConnector]: Initializing CDTParser... [2020-08-22 21:34:03,133 INFO L275 PluginConnector]: CDTParser initialized [2020-08-22 21:34:03,133 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec5_product47.cil.c [2020-08-22 21:34:03,196 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2bfb9f3b2/9471140e1c92445a94200b3b6b1ab705/FLAG38666a76c [2020-08-22 21:34:03,716 INFO L306 CDTParser]: Found 1 translation units. [2020-08-22 21:34:03,717 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/minepump_spec5_product47.cil.c [2020-08-22 21:34:03,747 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2bfb9f3b2/9471140e1c92445a94200b3b6b1ab705/FLAG38666a76c [2020-08-22 21:34:03,964 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2bfb9f3b2/9471140e1c92445a94200b3b6b1ab705 [2020-08-22 21:34:03,973 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-08-22 21:34:03,975 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-08-22 21:34:03,976 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-08-22 21:34:03,976 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-08-22 21:34:03,979 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-08-22 21:34:03,980 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.08 09:34:03" (1/1) ... [2020-08-22 21:34:03,983 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6e065585 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 09:34:03, skipping insertion in model container [2020-08-22 21:34:03,983 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.08 09:34:03" (1/1) ... [2020-08-22 21:34:03,991 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-08-22 21:34:04,059 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-08-22 21:34:04,453 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-08-22 21:34:04,471 INFO L203 MainTranslator]: Completed pre-run [2020-08-22 21:34:04,601 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-08-22 21:34:04,643 INFO L208 MainTranslator]: Completed translation [2020-08-22 21:34:04,643 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 09:34:04 WrapperNode [2020-08-22 21:34:04,644 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-08-22 21:34:04,644 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-08-22 21:34:04,645 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-08-22 21:34:04,645 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-08-22 21:34:04,656 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 09:34:04" (1/1) ... [2020-08-22 21:34:04,656 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 09:34:04" (1/1) ... [2020-08-22 21:34:04,675 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 09:34:04" (1/1) ... [2020-08-22 21:34:04,675 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 09:34:04" (1/1) ... [2020-08-22 21:34:04,727 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 09:34:04" (1/1) ... [2020-08-22 21:34:04,745 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 09:34:04" (1/1) ... [2020-08-22 21:34:04,750 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 09:34:04" (1/1) ... [2020-08-22 21:34:04,770 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-08-22 21:34:04,770 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-08-22 21:34:04,770 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-08-22 21:34:04,771 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-08-22 21:34:04,771 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 09:34:04" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-08-22 21:34:04,850 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-08-22 21:34:04,850 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-08-22 21:34:04,850 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2020-08-22 21:34:04,851 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2020-08-22 21:34:04,851 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2020-08-22 21:34:04,851 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2020-08-22 21:34:04,851 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__methaneQuery [2020-08-22 21:34:04,851 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2020-08-22 21:34:04,852 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump__wrappee__highWaterSensor [2020-08-22 21:34:04,852 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2020-08-22 21:34:04,852 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2020-08-22 21:34:04,853 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2020-08-22 21:34:04,853 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2020-08-22 21:34:04,853 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2020-08-22 21:34:04,853 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterLevel [2020-08-22 21:34:04,854 INFO L138 BoogieDeclarations]: Found implementation of procedure stopSystem [2020-08-22 21:34:04,854 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2020-08-22 21:34:04,854 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2020-08-22 21:34:04,854 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2020-08-22 21:34:04,855 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2020-08-22 21:34:04,855 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2020-08-22 21:34:04,856 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-08-22 21:34:04,858 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2020-08-22 21:34:04,858 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2020-08-22 21:34:04,858 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2020-08-22 21:34:04,858 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2020-08-22 21:34:04,858 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2020-08-22 21:34:04,858 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2020-08-22 21:34:04,859 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2020-08-22 21:34:04,859 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2020-08-22 21:34:04,859 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2020-08-22 21:34:04,859 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2020-08-22 21:34:04,859 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification5_spec__1 [2020-08-22 21:34:04,859 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification5_spec__2 [2020-08-22 21:34:04,859 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification5_spec__3 [2020-08-22 21:34:04,860 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2020-08-22 21:34:04,860 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2020-08-22 21:34:04,860 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2020-08-22 21:34:04,860 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2020-08-22 21:34:04,860 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2020-08-22 21:34:04,860 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2020-08-22 21:34:04,860 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterSensorDry [2020-08-22 21:34:04,861 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-08-22 21:34:04,861 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-08-22 21:34:04,861 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2020-08-22 21:34:04,861 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2020-08-22 21:34:04,861 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2020-08-22 21:34:04,862 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2020-08-22 21:34:04,862 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2020-08-22 21:34:04,862 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterSensorDry [2020-08-22 21:34:04,862 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2020-08-22 21:34:04,862 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2020-08-22 21:34:04,862 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2020-08-22 21:34:04,863 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2020-08-22 21:34:04,864 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2020-08-22 21:34:04,864 INFO L130 BoogieDeclarations]: Found specification of procedure stopSystem [2020-08-22 21:34:04,864 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification5_spec__2 [2020-08-22 21:34:04,864 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification5_spec__3 [2020-08-22 21:34:04,864 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2020-08-22 21:34:04,864 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2020-08-22 21:34:04,864 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterLevel [2020-08-22 21:34:04,865 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__methaneQuery [2020-08-22 21:34:04,865 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2020-08-22 21:34:04,865 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump__wrappee__highWaterSensor [2020-08-22 21:34:04,865 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-08-22 21:34:04,865 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2020-08-22 21:34:04,865 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2020-08-22 21:34:04,865 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2020-08-22 21:34:04,866 INFO L130 BoogieDeclarations]: Found specification of procedure test [2020-08-22 21:34:04,866 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2020-08-22 21:34:04,866 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2020-08-22 21:34:04,866 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification5_spec__1 [2020-08-22 21:34:04,866 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2020-08-22 21:34:04,867 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2020-08-22 21:34:04,867 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2020-08-22 21:34:04,867 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2020-08-22 21:34:04,867 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-08-22 21:34:04,867 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-08-22 21:34:04,867 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-08-22 21:34:04,868 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-08-22 21:34:04,868 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2020-08-22 21:34:04,868 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-08-22 21:34:04,869 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-08-22 21:34:04,869 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-08-22 21:34:04,869 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-08-22 21:34:04,869 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2020-08-22 21:34:04,870 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-08-22 21:34:04,871 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2020-08-22 21:34:04,871 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2020-08-22 21:34:04,871 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-08-22 21:34:04,871 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2020-08-22 21:34:04,871 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2020-08-22 21:34:04,871 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2020-08-22 21:34:04,872 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2020-08-22 21:34:04,872 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2020-08-22 21:34:04,872 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-08-22 21:34:04,873 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-08-22 21:34:04,873 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-08-22 21:34:05,965 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-08-22 21:34:05,965 INFO L295 CfgBuilder]: Removed 5 assume(true) statements. [2020-08-22 21:34:05,972 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.08 09:34:05 BoogieIcfgContainer [2020-08-22 21:34:05,972 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-08-22 21:34:05,973 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-08-22 21:34:05,973 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-08-22 21:34:05,977 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-08-22 21:34:05,977 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.08 09:34:03" (1/3) ... [2020-08-22 21:34:05,978 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@73e7806e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.08 09:34:05, skipping insertion in model container [2020-08-22 21:34:05,978 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 09:34:04" (2/3) ... [2020-08-22 21:34:05,978 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@73e7806e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.08 09:34:05, skipping insertion in model container [2020-08-22 21:34:05,979 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.08 09:34:05" (3/3) ... [2020-08-22 21:34:05,980 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec5_product47.cil.c [2020-08-22 21:34:05,991 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-08-22 21:34:06,001 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-08-22 21:34:06,016 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-08-22 21:34:06,040 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-08-22 21:34:06,040 INFO L376 AbstractCegarLoop]: Hoare is true [2020-08-22 21:34:06,040 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-08-22 21:34:06,041 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-08-22 21:34:06,041 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-08-22 21:34:06,041 INFO L380 AbstractCegarLoop]: Difference is false [2020-08-22 21:34:06,041 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-08-22 21:34:06,042 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-08-22 21:34:06,066 INFO L276 IsEmpty]: Start isEmpty. Operand 334 states. [2020-08-22 21:34:06,087 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 161 [2020-08-22 21:34:06,088 INFO L414 BasicCegarLoop]: Found error trace [2020-08-22 21:34:06,089 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 21:34:06,090 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-22 21:34:06,096 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-22 21:34:06,097 INFO L82 PathProgramCache]: Analyzing trace with hash 41211657, now seen corresponding path program 1 times [2020-08-22 21:34:06,107 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-22 21:34:06,107 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1209788759] [2020-08-22 21:34:06,108 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-22 21:34:06,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:34:06,835 WARN L193 SmtUtils]: Spent 285.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-08-22 21:34:06,838 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 21:34:06,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:34:06,990 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2020-08-22 21:34:06,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:34:06,994 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-08-22 21:34:06,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:34:06,996 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-08-22 21:34:06,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:34:06,998 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-08-22 21:34:06,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:34:07,010 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-08-22 21:34:07,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:34:07,012 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2020-08-22 21:34:07,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:34:07,015 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 21:34:07,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:34:07,017 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2020-08-22 21:34:07,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:34:07,019 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2020-08-22 21:34:07,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:34:07,050 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 21:34:07,050 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1209788759] [2020-08-22 21:34:07,052 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-22 21:34:07,053 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-08-22 21:34:07,053 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1202473170] [2020-08-22 21:34:07,059 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-08-22 21:34:07,059 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-22 21:34:07,073 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-08-22 21:34:07,074 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-08-22 21:34:07,076 INFO L87 Difference]: Start difference. First operand 334 states. Second operand 4 states. [2020-08-22 21:34:08,434 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-22 21:34:08,435 INFO L93 Difference]: Finished difference Result 530 states and 624 transitions. [2020-08-22 21:34:08,441 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-08-22 21:34:08,443 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 160 [2020-08-22 21:34:08,446 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-22 21:34:08,473 INFO L225 Difference]: With dead ends: 530 [2020-08-22 21:34:08,473 INFO L226 Difference]: Without dead ends: 332 [2020-08-22 21:34:08,484 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-08-22 21:34:08,505 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 332 states. [2020-08-22 21:34:08,643 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 332 to 283. [2020-08-22 21:34:08,645 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 283 states. [2020-08-22 21:34:08,647 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 283 states to 283 states and 310 transitions. [2020-08-22 21:34:08,649 INFO L78 Accepts]: Start accepts. Automaton has 283 states and 310 transitions. Word has length 160 [2020-08-22 21:34:08,650 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-22 21:34:08,650 INFO L479 AbstractCegarLoop]: Abstraction has 283 states and 310 transitions. [2020-08-22 21:34:08,650 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-08-22 21:34:08,650 INFO L276 IsEmpty]: Start isEmpty. Operand 283 states and 310 transitions. [2020-08-22 21:34:08,655 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 162 [2020-08-22 21:34:08,655 INFO L414 BasicCegarLoop]: Found error trace [2020-08-22 21:34:08,655 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 21:34:08,656 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-08-22 21:34:08,656 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-22 21:34:08,656 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-22 21:34:08,656 INFO L82 PathProgramCache]: Analyzing trace with hash -902563244, now seen corresponding path program 1 times [2020-08-22 21:34:08,657 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-22 21:34:08,657 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2029277867] [2020-08-22 21:34:08,657 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-22 21:34:08,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:34:09,055 WARN L193 SmtUtils]: Spent 259.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-08-22 21:34:09,056 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 21:34:09,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:34:09,095 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2020-08-22 21:34:09,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:34:09,097 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-08-22 21:34:09,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:34:09,098 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-08-22 21:34:09,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:34:09,100 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-08-22 21:34:09,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:34:09,112 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-08-22 21:34:09,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:34:09,114 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2020-08-22 21:34:09,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:34:09,116 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 21:34:09,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:34:09,120 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 138 [2020-08-22 21:34:09,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:34:09,122 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2020-08-22 21:34:09,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:34:09,150 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 21:34:09,150 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2029277867] [2020-08-22 21:34:09,150 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-22 21:34:09,151 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-08-22 21:34:09,151 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1717741166] [2020-08-22 21:34:09,155 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-08-22 21:34:09,155 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-22 21:34:09,155 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-08-22 21:34:09,155 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-08-22 21:34:09,156 INFO L87 Difference]: Start difference. First operand 283 states and 310 transitions. Second operand 5 states. [2020-08-22 21:34:09,774 WARN L193 SmtUtils]: Spent 213.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-08-22 21:34:10,811 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-22 21:34:10,811 INFO L93 Difference]: Finished difference Result 453 states and 512 transitions. [2020-08-22 21:34:10,817 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-08-22 21:34:10,817 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 161 [2020-08-22 21:34:10,818 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-22 21:34:10,821 INFO L225 Difference]: With dead ends: 453 [2020-08-22 21:34:10,822 INFO L226 Difference]: Without dead ends: 321 [2020-08-22 21:34:10,823 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2020-08-22 21:34:10,824 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 321 states. [2020-08-22 21:34:10,893 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 321 to 273. [2020-08-22 21:34:10,893 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 273 states. [2020-08-22 21:34:10,895 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 273 states to 273 states and 297 transitions. [2020-08-22 21:34:10,895 INFO L78 Accepts]: Start accepts. Automaton has 273 states and 297 transitions. Word has length 161 [2020-08-22 21:34:10,896 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-22 21:34:10,896 INFO L479 AbstractCegarLoop]: Abstraction has 273 states and 297 transitions. [2020-08-22 21:34:10,896 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-08-22 21:34:10,896 INFO L276 IsEmpty]: Start isEmpty. Operand 273 states and 297 transitions. [2020-08-22 21:34:10,899 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 171 [2020-08-22 21:34:10,899 INFO L414 BasicCegarLoop]: Found error trace [2020-08-22 21:34:10,899 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] [2020-08-22 21:34:10,899 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-08-22 21:34:10,899 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-22 21:34:10,900 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-22 21:34:10,900 INFO L82 PathProgramCache]: Analyzing trace with hash 1967698974, now seen corresponding path program 1 times [2020-08-22 21:34:10,900 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-22 21:34:10,900 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [596698426] [2020-08-22 21:34:10,901 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-22 21:34:10,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:34:11,214 WARN L193 SmtUtils]: Spent 195.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-08-22 21:34:11,216 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 21:34:11,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:34:11,319 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2020-08-22 21:34:11,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:34:11,321 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-08-22 21:34:11,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:34:11,322 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-08-22 21:34:11,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:34:11,367 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-08-22 21:34:11,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:34:11,407 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-08-22 21:34:11,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:34:11,409 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2020-08-22 21:34:11,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:34:11,412 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 21:34:11,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:34:11,414 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2020-08-22 21:34:11,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:34:11,415 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 157 [2020-08-22 21:34:11,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:34:11,447 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 21:34:11,448 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [596698426] [2020-08-22 21:34:11,448 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-22 21:34:11,448 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-08-22 21:34:11,448 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1572549727] [2020-08-22 21:34:11,449 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-08-22 21:34:11,449 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-22 21:34:11,450 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-08-22 21:34:11,450 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2020-08-22 21:34:11,450 INFO L87 Difference]: Start difference. First operand 273 states and 297 transitions. Second operand 10 states. [2020-08-22 21:34:12,066 WARN L193 SmtUtils]: Spent 299.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-08-22 21:34:12,525 WARN L193 SmtUtils]: Spent 316.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-08-22 21:34:12,921 WARN L193 SmtUtils]: Spent 364.00 ms on a formula simplification that was a NOOP. DAG size: 194 [2020-08-22 21:34:13,201 WARN L193 SmtUtils]: Spent 227.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-08-22 21:34:13,423 WARN L193 SmtUtils]: Spent 197.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-08-22 21:34:13,697 WARN L193 SmtUtils]: Spent 250.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-08-22 21:34:14,788 WARN L193 SmtUtils]: Spent 196.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-08-22 21:34:16,717 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-22 21:34:16,718 INFO L93 Difference]: Finished difference Result 734 states and 845 transitions. [2020-08-22 21:34:16,719 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-08-22 21:34:16,719 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 170 [2020-08-22 21:34:16,720 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-22 21:34:16,725 INFO L225 Difference]: With dead ends: 734 [2020-08-22 21:34:16,725 INFO L226 Difference]: Without dead ends: 576 [2020-08-22 21:34:16,727 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 24 SyntacticMatches, 1 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 39 ImplicationChecksByTransitivity, 2.2s TimeCoverageRelationStatistics Valid=104, Invalid=238, Unknown=0, NotChecked=0, Total=342 [2020-08-22 21:34:16,728 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 576 states. [2020-08-22 21:34:16,901 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 576 to 503. [2020-08-22 21:34:16,901 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 503 states. [2020-08-22 21:34:16,904 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 503 states to 503 states and 567 transitions. [2020-08-22 21:34:16,905 INFO L78 Accepts]: Start accepts. Automaton has 503 states and 567 transitions. Word has length 170 [2020-08-22 21:34:16,905 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-22 21:34:16,905 INFO L479 AbstractCegarLoop]: Abstraction has 503 states and 567 transitions. [2020-08-22 21:34:16,906 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-08-22 21:34:16,906 INFO L276 IsEmpty]: Start isEmpty. Operand 503 states and 567 transitions. [2020-08-22 21:34:16,909 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 180 [2020-08-22 21:34:16,909 INFO L414 BasicCegarLoop]: Found error trace [2020-08-22 21:34:16,910 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-22 21:34:16,910 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-08-22 21:34:16,910 INFO L427 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-22 21:34:16,910 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-22 21:34:16,911 INFO L82 PathProgramCache]: Analyzing trace with hash -1112258490, now seen corresponding path program 1 times [2020-08-22 21:34:16,911 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-22 21:34:16,911 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1832297316] [2020-08-22 21:34:16,911 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-22 21:34:16,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:34:17,171 WARN L193 SmtUtils]: Spent 166.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-08-22 21:34:17,172 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 21:34:17,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:34:17,211 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2020-08-22 21:34:17,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:34:17,213 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-08-22 21:34:17,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:34:17,215 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-08-22 21:34:17,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:34:17,217 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-08-22 21:34:17,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:34:17,226 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-08-22 21:34:17,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:34:17,266 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2020-08-22 21:34:17,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:34:17,270 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2020-08-22 21:34:17,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:34:17,272 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 21:34:17,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:34:17,280 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 156 [2020-08-22 21:34:17,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:34:17,282 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 166 [2020-08-22 21:34:17,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:34:17,345 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 21:34:17,345 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1832297316] [2020-08-22 21:34:17,345 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-22 21:34:17,345 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-08-22 21:34:17,346 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [960337831] [2020-08-22 21:34:17,347 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-08-22 21:34:17,347 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-22 21:34:17,347 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-08-22 21:34:17,349 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2020-08-22 21:34:17,349 INFO L87 Difference]: Start difference. First operand 503 states and 567 transitions. Second operand 10 states. [2020-08-22 21:34:17,845 WARN L193 SmtUtils]: Spent 184.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-08-22 21:34:18,650 WARN L193 SmtUtils]: Spent 202.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-08-22 21:34:18,907 WARN L193 SmtUtils]: Spent 228.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-08-22 21:34:20,036 WARN L193 SmtUtils]: Spent 202.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-08-22 21:34:20,285 WARN L193 SmtUtils]: Spent 211.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-08-22 21:34:20,511 WARN L193 SmtUtils]: Spent 203.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-08-22 21:34:20,818 WARN L193 SmtUtils]: Spent 194.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-08-22 21:34:21,036 WARN L193 SmtUtils]: Spent 198.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-08-22 21:34:21,300 WARN L193 SmtUtils]: Spent 204.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-08-22 21:34:22,082 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-22 21:34:22,082 INFO L93 Difference]: Finished difference Result 1178 states and 1405 transitions. [2020-08-22 21:34:22,083 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2020-08-22 21:34:22,083 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 179 [2020-08-22 21:34:22,084 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-22 21:34:22,089 INFO L225 Difference]: With dead ends: 1178 [2020-08-22 21:34:22,089 INFO L226 Difference]: Without dead ends: 790 [2020-08-22 21:34:22,091 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 57 ImplicationChecksByTransitivity, 2.2s TimeCoverageRelationStatistics Valid=143, Invalid=363, Unknown=0, NotChecked=0, Total=506 [2020-08-22 21:34:22,092 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 790 states. [2020-08-22 21:34:22,285 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 790 to 701. [2020-08-22 21:34:22,285 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 701 states. [2020-08-22 21:34:22,289 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 701 states to 701 states and 787 transitions. [2020-08-22 21:34:22,290 INFO L78 Accepts]: Start accepts. Automaton has 701 states and 787 transitions. Word has length 179 [2020-08-22 21:34:22,290 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-22 21:34:22,290 INFO L479 AbstractCegarLoop]: Abstraction has 701 states and 787 transitions. [2020-08-22 21:34:22,291 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-08-22 21:34:22,291 INFO L276 IsEmpty]: Start isEmpty. Operand 701 states and 787 transitions. [2020-08-22 21:34:22,294 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 231 [2020-08-22 21:34:22,294 INFO L414 BasicCegarLoop]: Found error trace [2020-08-22 21:34:22,295 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] [2020-08-22 21:34:22,295 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-08-22 21:34:22,295 INFO L427 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-22 21:34:22,295 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-22 21:34:22,296 INFO L82 PathProgramCache]: Analyzing trace with hash 212621173, now seen corresponding path program 1 times [2020-08-22 21:34:22,296 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-22 21:34:22,296 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1180674033] [2020-08-22 21:34:22,296 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-22 21:34:22,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:34:22,552 WARN L193 SmtUtils]: Spent 187.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-08-22 21:34:22,553 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 21:34:22,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:34:22,582 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2020-08-22 21:34:22,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:34:22,584 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-08-22 21:34:22,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:34:22,585 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-08-22 21:34:22,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:34:22,586 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-08-22 21:34:22,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:34:22,598 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-08-22 21:34:22,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:34:22,600 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2020-08-22 21:34:22,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:34:22,602 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 21:34:22,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:34:22,613 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 144 [2020-08-22 21:34:22,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:34:22,622 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-22 21:34:22,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:34:22,648 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-22 21:34:22,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:34:22,702 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-22 21:34:22,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:34:22,704 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-08-22 21:34:22,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:34:22,708 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-22 21:34:22,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:34:22,710 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-22 21:34:22,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:34:22,712 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2020-08-22 21:34:22,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:34:22,752 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 207 [2020-08-22 21:34:22,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:34:22,754 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 217 [2020-08-22 21:34:22,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:34:22,816 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 21:34:22,816 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1180674033] [2020-08-22 21:34:22,816 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-22 21:34:22,817 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-08-22 21:34:22,817 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [742929039] [2020-08-22 21:34:22,818 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-08-22 21:34:22,818 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-22 21:34:22,818 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-08-22 21:34:22,819 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2020-08-22 21:34:22,819 INFO L87 Difference]: Start difference. First operand 701 states and 787 transitions. Second operand 10 states. [2020-08-22 21:34:24,134 WARN L193 SmtUtils]: Spent 202.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-08-22 21:34:24,379 WARN L193 SmtUtils]: Spent 211.00 ms on a formula simplification that was a NOOP. DAG size: 194 [2020-08-22 21:34:24,675 WARN L193 SmtUtils]: Spent 258.00 ms on a formula simplification that was a NOOP. DAG size: 197 [2020-08-22 21:34:24,922 WARN L193 SmtUtils]: Spent 194.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-08-22 21:34:25,166 WARN L193 SmtUtils]: Spent 196.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-08-22 21:34:25,394 WARN L193 SmtUtils]: Spent 193.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-08-22 21:34:26,425 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-22 21:34:26,425 INFO L93 Difference]: Finished difference Result 1426 states and 1690 transitions. [2020-08-22 21:34:26,429 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-08-22 21:34:26,429 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 230 [2020-08-22 21:34:26,430 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-22 21:34:26,435 INFO L225 Difference]: With dead ends: 1426 [2020-08-22 21:34:26,435 INFO L226 Difference]: Without dead ends: 840 [2020-08-22 21:34:26,437 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 53 GetRequests, 38 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=75, Invalid=197, Unknown=0, NotChecked=0, Total=272 [2020-08-22 21:34:26,439 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 840 states. [2020-08-22 21:34:26,654 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 840 to 720. [2020-08-22 21:34:26,654 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 720 states. [2020-08-22 21:34:26,658 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 720 states to 720 states and 807 transitions. [2020-08-22 21:34:26,658 INFO L78 Accepts]: Start accepts. Automaton has 720 states and 807 transitions. Word has length 230 [2020-08-22 21:34:26,659 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-22 21:34:26,659 INFO L479 AbstractCegarLoop]: Abstraction has 720 states and 807 transitions. [2020-08-22 21:34:26,659 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-08-22 21:34:26,659 INFO L276 IsEmpty]: Start isEmpty. Operand 720 states and 807 transitions. [2020-08-22 21:34:26,663 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 231 [2020-08-22 21:34:26,663 INFO L414 BasicCegarLoop]: Found error trace [2020-08-22 21:34:26,664 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] [2020-08-22 21:34:26,664 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-08-22 21:34:26,664 INFO L427 AbstractCegarLoop]: === Iteration 6 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-22 21:34:26,664 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-22 21:34:26,664 INFO L82 PathProgramCache]: Analyzing trace with hash 880367573, now seen corresponding path program 1 times [2020-08-22 21:34:26,665 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-22 21:34:26,665 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1814329890] [2020-08-22 21:34:26,665 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-22 21:34:26,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:34:26,952 WARN L193 SmtUtils]: Spent 187.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-08-22 21:34:26,953 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 21:34:26,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:34:26,978 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2020-08-22 21:34:26,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:34:26,979 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-08-22 21:34:26,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:34:26,980 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-08-22 21:34:26,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:34:27,019 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-08-22 21:34:27,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:34:27,028 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-08-22 21:34:27,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:34:27,030 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2020-08-22 21:34:27,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:34:27,032 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 21:34:27,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:34:27,042 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 144 [2020-08-22 21:34:27,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:34:27,052 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-22 21:34:27,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:34:27,058 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-22 21:34:27,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:34:27,084 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-22 21:34:27,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:34:27,110 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-08-22 21:34:27,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:34:27,115 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-22 21:34:27,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:34:27,117 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-22 21:34:27,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:34:27,120 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2020-08-22 21:34:27,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:34:27,125 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 207 [2020-08-22 21:34:27,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:34:27,126 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 217 [2020-08-22 21:34:27,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:34:27,157 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 21:34:27,157 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1814329890] [2020-08-22 21:34:27,158 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-22 21:34:27,158 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2020-08-22 21:34:27,158 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [22979916] [2020-08-22 21:34:27,158 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-08-22 21:34:27,159 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-22 21:34:27,159 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-08-22 21:34:27,159 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=131, Unknown=0, NotChecked=0, Total=156 [2020-08-22 21:34:27,159 INFO L87 Difference]: Start difference. First operand 720 states and 807 transitions. Second operand 13 states. [2020-08-22 21:34:27,683 WARN L193 SmtUtils]: Spent 202.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-08-22 21:34:27,957 WARN L193 SmtUtils]: Spent 250.00 ms on a formula simplification that was a NOOP. DAG size: 194 [2020-08-22 21:34:28,187 WARN L193 SmtUtils]: Spent 193.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-08-22 21:34:28,416 WARN L193 SmtUtils]: Spent 198.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-08-22 21:34:28,632 WARN L193 SmtUtils]: Spent 193.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-08-22 21:34:29,596 WARN L193 SmtUtils]: Spent 184.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-08-22 21:34:29,807 WARN L193 SmtUtils]: Spent 175.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-08-22 21:34:30,072 WARN L193 SmtUtils]: Spent 193.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-08-22 21:34:30,357 WARN L193 SmtUtils]: Spent 214.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-08-22 21:34:30,597 WARN L193 SmtUtils]: Spent 199.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-08-22 21:34:31,810 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-22 21:34:31,811 INFO L93 Difference]: Finished difference Result 1463 states and 1728 transitions. [2020-08-22 21:34:31,811 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2020-08-22 21:34:31,812 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 230 [2020-08-22 21:34:31,812 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-22 21:34:31,818 INFO L225 Difference]: With dead ends: 1463 [2020-08-22 21:34:31,819 INFO L226 Difference]: Without dead ends: 858 [2020-08-22 21:34:31,823 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 63 GetRequests, 41 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 49 ImplicationChecksByTransitivity, 2.5s TimeCoverageRelationStatistics Valid=110, Invalid=442, Unknown=0, NotChecked=0, Total=552 [2020-08-22 21:34:31,828 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 858 states. [2020-08-22 21:34:32,055 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 858 to 732. [2020-08-22 21:34:32,055 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 732 states. [2020-08-22 21:34:32,058 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 732 states to 732 states and 819 transitions. [2020-08-22 21:34:32,058 INFO L78 Accepts]: Start accepts. Automaton has 732 states and 819 transitions. Word has length 230 [2020-08-22 21:34:32,059 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-22 21:34:32,059 INFO L479 AbstractCegarLoop]: Abstraction has 732 states and 819 transitions. [2020-08-22 21:34:32,059 INFO L480 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-08-22 21:34:32,059 INFO L276 IsEmpty]: Start isEmpty. Operand 732 states and 819 transitions. [2020-08-22 21:34:32,063 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 231 [2020-08-22 21:34:32,063 INFO L414 BasicCegarLoop]: Found error trace [2020-08-22 21:34:32,064 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] [2020-08-22 21:34:32,064 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-08-22 21:34:32,064 INFO L427 AbstractCegarLoop]: === Iteration 7 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-22 21:34:32,064 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-22 21:34:32,065 INFO L82 PathProgramCache]: Analyzing trace with hash 1607472850, now seen corresponding path program 1 times [2020-08-22 21:34:32,065 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-22 21:34:32,065 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [671144541] [2020-08-22 21:34:32,065 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-22 21:34:32,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:34:32,346 WARN L193 SmtUtils]: Spent 195.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-08-22 21:34:32,347 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 21:34:32,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:34:32,384 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2020-08-22 21:34:32,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:34:32,385 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-08-22 21:34:32,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:34:32,387 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-08-22 21:34:32,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:34:32,389 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-08-22 21:34:32,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:34:32,406 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-08-22 21:34:32,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:34:32,408 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2020-08-22 21:34:32,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:34:32,409 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 21:34:32,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:34:32,416 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 144 [2020-08-22 21:34:32,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:34:32,431 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-22 21:34:32,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:34:32,445 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-22 21:34:32,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:34:32,466 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-22 21:34:32,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:34:32,480 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-08-22 21:34:32,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:34:32,484 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-22 21:34:32,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:34:32,486 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-22 21:34:32,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:34:32,488 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2020-08-22 21:34:32,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:34:32,496 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 207 [2020-08-22 21:34:32,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:34:32,498 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 217 [2020-08-22 21:34:32,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:34:32,565 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 21:34:32,565 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [671144541] [2020-08-22 21:34:32,566 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-22 21:34:32,566 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-08-22 21:34:32,566 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [747657127] [2020-08-22 21:34:32,567 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-08-22 21:34:32,567 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-22 21:34:32,567 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-08-22 21:34:32,568 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2020-08-22 21:34:32,568 INFO L87 Difference]: Start difference. First operand 732 states and 819 transitions. Second operand 7 states. [2020-08-22 21:34:33,007 WARN L193 SmtUtils]: Spent 229.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-08-22 21:34:33,599 WARN L193 SmtUtils]: Spent 200.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-08-22 21:34:35,890 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-22 21:34:35,890 INFO L93 Difference]: Finished difference Result 2149 states and 2562 transitions. [2020-08-22 21:34:35,890 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-08-22 21:34:35,891 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 230 [2020-08-22 21:34:35,891 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-22 21:34:35,900 INFO L225 Difference]: With dead ends: 2149 [2020-08-22 21:34:35,901 INFO L226 Difference]: Without dead ends: 1532 [2020-08-22 21:34:35,904 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 61 GetRequests, 45 SyntacticMatches, 3 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 32 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=64, Invalid=146, Unknown=0, NotChecked=0, Total=210 [2020-08-22 21:34:35,907 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1532 states. [2020-08-22 21:34:36,276 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1532 to 1408. [2020-08-22 21:34:36,276 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1408 states. [2020-08-22 21:34:36,280 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1408 states to 1408 states and 1604 transitions. [2020-08-22 21:34:36,281 INFO L78 Accepts]: Start accepts. Automaton has 1408 states and 1604 transitions. Word has length 230 [2020-08-22 21:34:36,281 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-22 21:34:36,281 INFO L479 AbstractCegarLoop]: Abstraction has 1408 states and 1604 transitions. [2020-08-22 21:34:36,281 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-08-22 21:34:36,281 INFO L276 IsEmpty]: Start isEmpty. Operand 1408 states and 1604 transitions. [2020-08-22 21:34:36,284 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 236 [2020-08-22 21:34:36,284 INFO L414 BasicCegarLoop]: Found error trace [2020-08-22 21:34:36,285 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] [2020-08-22 21:34:36,285 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-08-22 21:34:36,285 INFO L427 AbstractCegarLoop]: === Iteration 8 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-22 21:34:36,285 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-22 21:34:36,286 INFO L82 PathProgramCache]: Analyzing trace with hash -1130657052, now seen corresponding path program 1 times [2020-08-22 21:34:36,286 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-22 21:34:36,286 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2034833705] [2020-08-22 21:34:36,286 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-22 21:34:36,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:34:36,614 WARN L193 SmtUtils]: Spent 196.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-08-22 21:34:36,615 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 21:34:36,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:34:36,651 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2020-08-22 21:34:36,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:34:36,653 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-08-22 21:34:36,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:34:36,654 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-08-22 21:34:36,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:34:36,655 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-08-22 21:34:36,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:34:36,665 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-08-22 21:34:36,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:34:36,676 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2020-08-22 21:34:36,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:34:36,719 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2020-08-22 21:34:36,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:34:36,721 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 21:34:36,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:34:36,735 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 149 [2020-08-22 21:34:36,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:34:36,742 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-22 21:34:36,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:34:36,746 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-22 21:34:36,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:34:36,749 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-22 21:34:36,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:34:36,750 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-08-22 21:34:36,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:34:36,753 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-22 21:34:36,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:34:36,754 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-22 21:34:36,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:34:36,755 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2020-08-22 21:34:36,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:34:36,760 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 212 [2020-08-22 21:34:36,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:34:36,787 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 222 [2020-08-22 21:34:36,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:34:36,835 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 21:34:36,836 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2034833705] [2020-08-22 21:34:36,836 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-22 21:34:36,836 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2020-08-22 21:34:36,836 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1424939409] [2020-08-22 21:34:36,837 INFO L459 AbstractCegarLoop]: Interpolant automaton has 14 states [2020-08-22 21:34:36,837 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-22 21:34:36,837 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2020-08-22 21:34:36,838 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=152, Unknown=0, NotChecked=0, Total=182 [2020-08-22 21:34:36,838 INFO L87 Difference]: Start difference. First operand 1408 states and 1604 transitions. Second operand 14 states. [2020-08-22 21:34:37,524 WARN L193 SmtUtils]: Spent 415.00 ms on a formula simplification. DAG size of input: 191 DAG size of output: 189 [2020-08-22 21:34:38,272 WARN L193 SmtUtils]: Spent 185.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-08-22 21:34:39,313 WARN L193 SmtUtils]: Spent 402.00 ms on a formula simplification. DAG size of input: 193 DAG size of output: 191 [2020-08-22 21:34:39,792 WARN L193 SmtUtils]: Spent 431.00 ms on a formula simplification. DAG size of input: 195 DAG size of output: 193 [2020-08-22 21:34:40,149 WARN L193 SmtUtils]: Spent 237.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-08-22 21:34:40,397 WARN L193 SmtUtils]: Spent 206.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-08-22 21:34:40,861 WARN L193 SmtUtils]: Spent 401.00 ms on a formula simplification. DAG size of input: 194 DAG size of output: 192 [2020-08-22 21:34:41,104 WARN L193 SmtUtils]: Spent 205.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-08-22 21:34:41,389 WARN L193 SmtUtils]: Spent 206.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-08-22 21:34:41,626 WARN L193 SmtUtils]: Spent 199.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-08-22 21:34:44,085 WARN L193 SmtUtils]: Spent 393.00 ms on a formula simplification. DAG size of input: 190 DAG size of output: 189 [2020-08-22 21:34:44,643 WARN L193 SmtUtils]: Spent 208.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-08-22 21:34:44,907 WARN L193 SmtUtils]: Spent 234.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-08-22 21:34:45,210 WARN L193 SmtUtils]: Spent 194.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-08-22 21:34:46,156 WARN L193 SmtUtils]: Spent 399.00 ms on a formula simplification. DAG size of input: 192 DAG size of output: 191 [2020-08-22 21:34:46,591 WARN L193 SmtUtils]: Spent 407.00 ms on a formula simplification. DAG size of input: 194 DAG size of output: 193 [2020-08-22 21:34:47,063 WARN L193 SmtUtils]: Spent 408.00 ms on a formula simplification. DAG size of input: 193 DAG size of output: 192 [2020-08-22 21:34:47,706 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-22 21:34:47,706 INFO L93 Difference]: Finished difference Result 4039 states and 4833 transitions. [2020-08-22 21:34:47,707 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 43 states. [2020-08-22 21:34:47,707 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 235 [2020-08-22 21:34:47,707 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-22 21:34:47,723 INFO L225 Difference]: With dead ends: 4039 [2020-08-22 21:34:47,723 INFO L226 Difference]: Without dead ends: 3023 [2020-08-22 21:34:47,728 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 97 GetRequests, 50 SyntacticMatches, 0 SemanticMatches, 47 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 617 ImplicationChecksByTransitivity, 6.0s TimeCoverageRelationStatistics Valid=499, Invalid=1853, Unknown=0, NotChecked=0, Total=2352 [2020-08-22 21:34:47,731 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3023 states. [2020-08-22 21:34:48,965 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3023 to 2589. [2020-08-22 21:34:48,965 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2589 states. [2020-08-22 21:34:48,973 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2589 states to 2589 states and 2929 transitions. [2020-08-22 21:34:48,974 INFO L78 Accepts]: Start accepts. Automaton has 2589 states and 2929 transitions. Word has length 235 [2020-08-22 21:34:48,975 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-22 21:34:48,975 INFO L479 AbstractCegarLoop]: Abstraction has 2589 states and 2929 transitions. [2020-08-22 21:34:48,975 INFO L480 AbstractCegarLoop]: Interpolant automaton has 14 states. [2020-08-22 21:34:48,975 INFO L276 IsEmpty]: Start isEmpty. Operand 2589 states and 2929 transitions. [2020-08-22 21:34:48,980 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 318 [2020-08-22 21:34:48,980 INFO L414 BasicCegarLoop]: Found error trace [2020-08-22 21:34:48,980 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 21:34:48,981 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-08-22 21:34:48,981 INFO L427 AbstractCegarLoop]: === Iteration 9 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-22 21:34:48,981 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-22 21:34:48,981 INFO L82 PathProgramCache]: Analyzing trace with hash 684822519, now seen corresponding path program 1 times [2020-08-22 21:34:48,981 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-22 21:34:48,982 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1865114501] [2020-08-22 21:34:48,982 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-22 21:34:49,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:34:49,301 WARN L193 SmtUtils]: Spent 204.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-08-22 21:34:49,301 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 21:34:49,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:34:49,345 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2020-08-22 21:34:49,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:34:49,347 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-08-22 21:34:49,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:34:49,349 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-08-22 21:34:49,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:34:49,389 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-08-22 21:34:49,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:34:49,405 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-08-22 21:34:49,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:34:49,423 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2020-08-22 21:34:49,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:34:49,447 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2020-08-22 21:34:49,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:34:49,480 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 21:34:49,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:34:49,482 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 21:34:49,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:34:49,509 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2020-08-22 21:34:49,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:34:49,519 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-22 21:34:49,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:34:49,527 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-22 21:34:49,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:34:49,529 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-22 21:34:49,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:34:49,531 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-08-22 21:34:49,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:34:49,535 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-22 21:34:49,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:34:49,536 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-22 21:34:49,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:34:49,537 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2020-08-22 21:34:49,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:34:49,547 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2020-08-22 21:34:49,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:34:49,549 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-22 21:34:49,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:34:49,556 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 241 [2020-08-22 21:34:49,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:34:49,622 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 21:34:49,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:34:49,727 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 254 [2020-08-22 21:34:49,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:34:49,729 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 260 [2020-08-22 21:34:49,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:34:49,734 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-22 21:34:49,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:34:49,735 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-22 21:34:49,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:34:49,737 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2020-08-22 21:34:49,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:34:49,739 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-22 21:34:49,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:34:49,742 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 294 [2020-08-22 21:34:49,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:34:49,744 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 304 [2020-08-22 21:34:49,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:34:49,862 INFO L134 CoverageAnalysis]: Checked inductivity of 74 backedges. 33 proven. 9 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2020-08-22 21:34:49,862 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1865114501] [2020-08-22 21:34:49,863 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-08-22 21:34:49,863 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [18] total 18 [2020-08-22 21:34:49,863 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [936180932] [2020-08-22 21:34:49,864 INFO L459 AbstractCegarLoop]: Interpolant automaton has 18 states [2020-08-22 21:34:49,864 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-22 21:34:49,864 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2020-08-22 21:34:49,865 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=264, Unknown=0, NotChecked=0, Total=306 [2020-08-22 21:34:49,865 INFO L87 Difference]: Start difference. First operand 2589 states and 2929 transitions. Second operand 18 states. [2020-08-22 21:34:50,618 WARN L193 SmtUtils]: Spent 229.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-08-22 21:34:50,853 WARN L193 SmtUtils]: Spent 207.00 ms on a formula simplification that was a NOOP. DAG size: 194 [2020-08-22 21:34:51,087 WARN L193 SmtUtils]: Spent 194.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-08-22 21:34:51,371 WARN L193 SmtUtils]: Spent 247.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-08-22 21:34:51,598 WARN L193 SmtUtils]: Spent 196.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-08-22 21:34:52,404 WARN L193 SmtUtils]: Spent 213.00 ms on a formula simplification that was a NOOP. DAG size: 197 [2020-08-22 21:34:52,728 WARN L193 SmtUtils]: Spent 260.00 ms on a formula simplification that was a NOOP. DAG size: 211 [2020-08-22 21:34:53,002 WARN L193 SmtUtils]: Spent 238.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2020-08-22 21:34:53,326 WARN L193 SmtUtils]: Spent 199.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-08-22 21:34:53,622 WARN L193 SmtUtils]: Spent 206.00 ms on a formula simplification that was a NOOP. DAG size: 194 [2020-08-22 21:34:54,047 WARN L193 SmtUtils]: Spent 230.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2020-08-22 21:34:54,397 WARN L193 SmtUtils]: Spent 250.00 ms on a formula simplification that was a NOOP. DAG size: 207 [2020-08-22 21:34:54,727 WARN L193 SmtUtils]: Spent 268.00 ms on a formula simplification that was a NOOP. DAG size: 198 [2020-08-22 21:34:56,393 WARN L193 SmtUtils]: Spent 197.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-08-22 21:34:57,241 WARN L193 SmtUtils]: Spent 415.00 ms on a formula simplification. DAG size of input: 198 DAG size of output: 191 [2020-08-22 21:34:57,721 WARN L193 SmtUtils]: Spent 432.00 ms on a formula simplification. DAG size of input: 203 DAG size of output: 193 [2020-08-22 21:34:58,253 WARN L193 SmtUtils]: Spent 463.00 ms on a formula simplification. DAG size of input: 195 DAG size of output: 193 [2020-08-22 21:34:58,657 WARN L193 SmtUtils]: Spent 203.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-08-22 21:34:59,332 WARN L193 SmtUtils]: Spent 197.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-08-22 21:34:59,877 WARN L193 SmtUtils]: Spent 220.00 ms on a formula simplification that was a NOOP. DAG size: 199 [2020-08-22 21:35:00,172 WARN L193 SmtUtils]: Spent 240.00 ms on a formula simplification that was a NOOP. DAG size: 204 [2020-08-22 21:35:00,743 WARN L193 SmtUtils]: Spent 422.00 ms on a formula simplification. DAG size of input: 200 DAG size of output: 194 [2020-08-22 21:35:01,257 WARN L193 SmtUtils]: Spent 444.00 ms on a formula simplification. DAG size of input: 205 DAG size of output: 196 [2020-08-22 21:35:02,124 WARN L193 SmtUtils]: Spent 258.00 ms on a formula simplification that was a NOOP. DAG size: 209 [2020-08-22 21:35:02,526 WARN L193 SmtUtils]: Spent 214.00 ms on a formula simplification that was a NOOP. DAG size: 195 [2020-08-22 21:35:03,048 WARN L193 SmtUtils]: Spent 430.00 ms on a formula simplification. DAG size of input: 197 DAG size of output: 195 [2020-08-22 21:35:04,393 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-22 21:35:04,393 INFO L93 Difference]: Finished difference Result 5495 states and 6348 transitions. [2020-08-22 21:35:04,394 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 62 states. [2020-08-22 21:35:04,394 INFO L78 Accepts]: Start accepts. Automaton has 18 states. Word has length 317 [2020-08-22 21:35:04,395 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-22 21:35:04,410 INFO L225 Difference]: With dead ends: 5495 [2020-08-22 21:35:04,411 INFO L226 Difference]: Without dead ends: 3283 [2020-08-22 21:35:04,420 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 149 GetRequests, 78 SyntacticMatches, 0 SemanticMatches, 71 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1431 ImplicationChecksByTransitivity, 9.0s TimeCoverageRelationStatistics Valid=934, Invalid=4322, Unknown=0, NotChecked=0, Total=5256 [2020-08-22 21:35:04,424 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3283 states. [2020-08-22 21:35:05,517 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3283 to 2995. [2020-08-22 21:35:05,517 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2995 states. [2020-08-22 21:35:05,525 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2995 states to 2995 states and 3338 transitions. [2020-08-22 21:35:05,527 INFO L78 Accepts]: Start accepts. Automaton has 2995 states and 3338 transitions. Word has length 317 [2020-08-22 21:35:05,527 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-22 21:35:05,527 INFO L479 AbstractCegarLoop]: Abstraction has 2995 states and 3338 transitions. [2020-08-22 21:35:05,528 INFO L480 AbstractCegarLoop]: Interpolant automaton has 18 states. [2020-08-22 21:35:05,528 INFO L276 IsEmpty]: Start isEmpty. Operand 2995 states and 3338 transitions. [2020-08-22 21:35:05,539 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 506 [2020-08-22 21:35:05,539 INFO L414 BasicCegarLoop]: Found error trace [2020-08-22 21:35:05,540 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 21:35:05,540 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-08-22 21:35:05,540 INFO L427 AbstractCegarLoop]: === Iteration 10 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-22 21:35:05,541 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-22 21:35:05,541 INFO L82 PathProgramCache]: Analyzing trace with hash -1969896623, now seen corresponding path program 1 times [2020-08-22 21:35:05,541 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-22 21:35:05,541 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2011986250] [2020-08-22 21:35:05,542 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-22 21:35:05,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:35:05,872 WARN L193 SmtUtils]: Spent 195.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-08-22 21:35:05,873 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 21:35:05,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:35:05,893 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2020-08-22 21:35:05,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:35:05,895 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-08-22 21:35:05,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:35:05,895 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-08-22 21:35:05,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:35:05,896 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-08-22 21:35:05,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:35:05,909 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-08-22 21:35:05,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:35:05,926 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2020-08-22 21:35:05,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:35:05,939 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2020-08-22 21:35:05,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:35:05,951 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 21:35:05,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:35:05,953 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 21:35:05,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:35:05,962 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2020-08-22 21:35:05,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:35:05,967 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-22 21:35:05,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:35:05,970 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-22 21:35:05,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:35:05,972 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-22 21:35:05,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:35:05,973 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-08-22 21:35:05,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:35:05,975 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-22 21:35:05,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:35:05,977 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-22 21:35:05,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:35:05,978 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2020-08-22 21:35:05,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:35:05,983 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2020-08-22 21:35:05,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:35:06,063 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-22 21:35:06,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:35:06,114 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 240 [2020-08-22 21:35:06,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:35:06,170 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 21:35:06,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:35:06,173 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 21:35:06,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:35:06,174 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2020-08-22 21:35:06,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:35:06,188 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2020-08-22 21:35:06,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:35:06,193 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-22 21:35:06,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:35:06,195 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-22 21:35:06,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:35:06,197 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2020-08-22 21:35:06,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:35:06,199 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-22 21:35:06,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:35:06,201 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2020-08-22 21:35:06,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:35:06,271 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-22 21:35:06,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:35:06,308 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 322 [2020-08-22 21:35:06,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:35:06,317 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 21:35:06,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:35:06,319 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 21:35:06,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:35:06,321 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2020-08-22 21:35:06,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:35:06,323 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2020-08-22 21:35:06,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:35:06,326 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-22 21:35:06,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:35:06,328 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-22 21:35:06,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:35:06,329 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2020-08-22 21:35:06,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:35:06,331 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2020-08-22 21:35:06,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:35:06,333 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-22 21:35:06,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:35:06,339 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 392 [2020-08-22 21:35:06,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:35:06,341 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 405 [2020-08-22 21:35:06,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:35:06,343 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 21:35:06,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:35:06,345 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 419 [2020-08-22 21:35:06,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:35:06,353 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-22 21:35:06,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:35:06,358 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-22 21:35:06,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:35:06,360 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-22 21:35:06,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:35:06,362 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-08-22 21:35:06,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:35:06,365 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-22 21:35:06,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:35:06,366 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-22 21:35:06,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:35:06,367 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2020-08-22 21:35:06,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:35:06,374 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 482 [2020-08-22 21:35:06,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:35:06,376 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 492 [2020-08-22 21:35:06,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:35:06,622 INFO L134 CoverageAnalysis]: Checked inductivity of 456 backedges. 120 proven. 38 refuted. 0 times theorem prover too weak. 298 trivial. 0 not checked. [2020-08-22 21:35:06,623 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2011986250] [2020-08-22 21:35:06,623 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-08-22 21:35:06,623 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16] total 16 [2020-08-22 21:35:06,623 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2095911540] [2020-08-22 21:35:06,624 INFO L459 AbstractCegarLoop]: Interpolant automaton has 16 states [2020-08-22 21:35:06,625 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-22 21:35:06,625 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2020-08-22 21:35:06,625 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=198, Unknown=0, NotChecked=0, Total=240 [2020-08-22 21:35:06,625 INFO L87 Difference]: Start difference. First operand 2995 states and 3338 transitions. Second operand 16 states. [2020-08-22 21:35:08,091 WARN L193 SmtUtils]: Spent 288.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-08-22 21:35:08,337 WARN L193 SmtUtils]: Spent 215.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-08-22 21:35:08,602 WARN L193 SmtUtils]: Spent 200.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-08-22 21:35:08,872 WARN L193 SmtUtils]: Spent 210.00 ms on a formula simplification that was a NOOP. DAG size: 195 [2020-08-22 21:35:09,105 WARN L193 SmtUtils]: Spent 201.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-08-22 21:35:09,337 WARN L193 SmtUtils]: Spent 197.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-08-22 21:35:10,591 WARN L193 SmtUtils]: Spent 212.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-08-22 21:35:10,852 WARN L193 SmtUtils]: Spent 222.00 ms on a formula simplification that was a NOOP. DAG size: 195 [2020-08-22 21:35:13,751 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-22 21:35:13,751 INFO L93 Difference]: Finished difference Result 7995 states and 9183 transitions. [2020-08-22 21:35:13,751 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2020-08-22 21:35:13,752 INFO L78 Accepts]: Start accepts. Automaton has 16 states. Word has length 505 [2020-08-22 21:35:13,752 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-22 21:35:13,775 INFO L225 Difference]: With dead ends: 7995 [2020-08-22 21:35:13,776 INFO L226 Difference]: Without dead ends: 4678 [2020-08-22 21:35:13,786 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 153 GetRequests, 113 SyntacticMatches, 6 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 253 ImplicationChecksByTransitivity, 2.5s TimeCoverageRelationStatistics Valid=292, Invalid=968, Unknown=0, NotChecked=0, Total=1260 [2020-08-22 21:35:13,791 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4678 states. [2020-08-22 21:35:15,163 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4678 to 4068. [2020-08-22 21:35:15,163 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4068 states. [2020-08-22 21:35:15,170 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4068 states to 4068 states and 4617 transitions. [2020-08-22 21:35:15,173 INFO L78 Accepts]: Start accepts. Automaton has 4068 states and 4617 transitions. Word has length 505 [2020-08-22 21:35:15,176 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-22 21:35:15,176 INFO L479 AbstractCegarLoop]: Abstraction has 4068 states and 4617 transitions. [2020-08-22 21:35:15,176 INFO L480 AbstractCegarLoop]: Interpolant automaton has 16 states. [2020-08-22 21:35:15,177 INFO L276 IsEmpty]: Start isEmpty. Operand 4068 states and 4617 transitions. [2020-08-22 21:35:15,191 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 512 [2020-08-22 21:35:15,191 INFO L414 BasicCegarLoop]: Found error trace [2020-08-22 21:35:15,192 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, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-22 21:35:15,192 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-08-22 21:35:15,193 INFO L427 AbstractCegarLoop]: === Iteration 11 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-22 21:35:15,193 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-22 21:35:15,193 INFO L82 PathProgramCache]: Analyzing trace with hash 130245076, now seen corresponding path program 1 times [2020-08-22 21:35:15,193 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-22 21:35:15,194 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1925544191] [2020-08-22 21:35:15,194 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-22 21:35:15,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:35:15,510 WARN L193 SmtUtils]: Spent 194.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-08-22 21:35:15,510 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 21:35:15,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:35:15,535 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2020-08-22 21:35:15,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:35:15,536 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-08-22 21:35:15,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:35:15,538 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-08-22 21:35:15,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:35:15,566 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-08-22 21:35:15,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:35:15,578 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-08-22 21:35:15,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:35:15,590 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2020-08-22 21:35:15,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:35:15,614 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2020-08-22 21:35:15,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:35:15,635 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 21:35:15,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:35:15,637 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 21:35:15,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:35:15,654 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2020-08-22 21:35:15,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:35:15,667 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-22 21:35:15,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:35:15,680 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-22 21:35:15,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:35:15,682 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-22 21:35:15,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:35:15,683 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-08-22 21:35:15,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:35:15,686 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-22 21:35:15,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:35:15,687 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-22 21:35:15,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:35:15,688 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2020-08-22 21:35:15,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:35:15,694 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2020-08-22 21:35:15,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:35:15,701 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-22 21:35:15,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:35:15,706 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 240 [2020-08-22 21:35:15,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:35:15,714 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 21:35:15,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:35:15,716 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 21:35:15,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:35:15,718 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2020-08-22 21:35:15,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:35:15,720 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2020-08-22 21:35:15,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:35:15,723 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-22 21:35:15,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:35:15,726 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-22 21:35:15,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:35:15,727 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2020-08-22 21:35:15,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:35:15,729 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-22 21:35:15,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:35:15,731 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2020-08-22 21:35:15,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:35:15,788 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-22 21:35:15,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:35:15,791 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-08-22 21:35:15,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:35:15,833 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 332 [2020-08-22 21:35:15,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:35:15,839 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 21:35:15,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:35:15,841 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 21:35:15,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:35:15,842 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2020-08-22 21:35:15,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:35:15,848 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2020-08-22 21:35:15,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:35:15,850 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-22 21:35:15,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:35:15,852 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-22 21:35:15,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:35:15,853 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2020-08-22 21:35:15,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:35:15,854 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2020-08-22 21:35:15,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:35:15,855 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-22 21:35:15,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:35:15,858 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 411 [2020-08-22 21:35:15,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:35:15,860 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 21:35:15,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:35:15,861 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 425 [2020-08-22 21:35:15,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:35:15,877 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-22 21:35:15,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:35:15,885 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-22 21:35:15,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:35:15,887 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-22 21:35:15,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:35:15,888 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-08-22 21:35:15,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:35:15,889 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-22 21:35:15,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:35:15,891 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-22 21:35:15,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:35:15,892 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2020-08-22 21:35:15,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:35:15,895 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 488 [2020-08-22 21:35:15,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:35:15,897 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 498 [2020-08-22 21:35:15,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:35:16,064 INFO L134 CoverageAnalysis]: Checked inductivity of 482 backedges. 128 proven. 41 refuted. 0 times theorem prover too weak. 313 trivial. 0 not checked. [2020-08-22 21:35:16,065 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1925544191] [2020-08-22 21:35:16,065 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-08-22 21:35:16,065 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [18] total 18 [2020-08-22 21:35:16,065 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [324976766] [2020-08-22 21:35:16,067 INFO L459 AbstractCegarLoop]: Interpolant automaton has 18 states [2020-08-22 21:35:16,068 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-22 21:35:16,068 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2020-08-22 21:35:16,072 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=265, Unknown=0, NotChecked=0, Total=306 [2020-08-22 21:35:16,072 INFO L87 Difference]: Start difference. First operand 4068 states and 4617 transitions. Second operand 18 states. [2020-08-22 21:35:16,567 WARN L193 SmtUtils]: Spent 189.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-08-22 21:35:16,895 WARN L193 SmtUtils]: Spent 208.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-08-22 21:35:17,146 WARN L193 SmtUtils]: Spent 221.00 ms on a formula simplification that was a NOOP. DAG size: 196 [2020-08-22 21:35:17,493 WARN L193 SmtUtils]: Spent 304.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-08-22 21:35:17,737 WARN L193 SmtUtils]: Spent 206.00 ms on a formula simplification that was a NOOP. DAG size: 194 [2020-08-22 21:35:17,970 WARN L193 SmtUtils]: Spent 202.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-08-22 21:35:18,813 WARN L193 SmtUtils]: Spent 203.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-08-22 21:35:19,104 WARN L193 SmtUtils]: Spent 221.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-08-22 21:35:20,436 WARN L193 SmtUtils]: Spent 207.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-08-22 21:35:20,729 WARN L193 SmtUtils]: Spent 207.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-08-22 21:35:20,979 WARN L193 SmtUtils]: Spent 202.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-08-22 21:35:21,363 WARN L193 SmtUtils]: Spent 198.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-08-22 21:35:22,044 WARN L193 SmtUtils]: Spent 204.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-08-22 21:35:22,384 WARN L193 SmtUtils]: Spent 303.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-08-22 21:35:23,265 WARN L193 SmtUtils]: Spent 203.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-08-22 21:35:23,529 WARN L193 SmtUtils]: Spent 209.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-08-22 21:35:23,765 WARN L193 SmtUtils]: Spent 204.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-08-22 21:35:25,349 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-22 21:35:25,350 INFO L93 Difference]: Finished difference Result 7752 states and 8888 transitions. [2020-08-22 21:35:25,350 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2020-08-22 21:35:25,351 INFO L78 Accepts]: Start accepts. Automaton has 18 states. Word has length 511 [2020-08-22 21:35:25,351 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-22 21:35:25,371 INFO L225 Difference]: With dead ends: 7752 [2020-08-22 21:35:25,371 INFO L226 Difference]: Without dead ends: 4093 [2020-08-22 21:35:25,381 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 169 GetRequests, 124 SyntacticMatches, 0 SemanticMatches, 45 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 452 ImplicationChecksByTransitivity, 4.6s TimeCoverageRelationStatistics Valid=414, Invalid=1748, Unknown=0, NotChecked=0, Total=2162 [2020-08-22 21:35:25,385 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4093 states. [2020-08-22 21:35:26,603 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4093 to 3973. [2020-08-22 21:35:26,603 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3973 states. [2020-08-22 21:35:26,609 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3973 states to 3973 states and 4480 transitions. [2020-08-22 21:35:26,610 INFO L78 Accepts]: Start accepts. Automaton has 3973 states and 4480 transitions. Word has length 511 [2020-08-22 21:35:26,610 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-22 21:35:26,610 INFO L479 AbstractCegarLoop]: Abstraction has 3973 states and 4480 transitions. [2020-08-22 21:35:26,610 INFO L480 AbstractCegarLoop]: Interpolant automaton has 18 states. [2020-08-22 21:35:26,611 INFO L276 IsEmpty]: Start isEmpty. Operand 3973 states and 4480 transitions. [2020-08-22 21:35:26,624 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 513 [2020-08-22 21:35:26,624 INFO L414 BasicCegarLoop]: Found error trace [2020-08-22 21:35:26,625 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, 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] [2020-08-22 21:35:26,625 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-08-22 21:35:26,625 INFO L427 AbstractCegarLoop]: === Iteration 12 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-22 21:35:26,626 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-22 21:35:26,626 INFO L82 PathProgramCache]: Analyzing trace with hash -832455977, now seen corresponding path program 1 times [2020-08-22 21:35:26,626 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-22 21:35:26,626 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [997679580] [2020-08-22 21:35:26,626 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-22 21:35:26,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:35:27,055 WARN L193 SmtUtils]: Spent 301.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-08-22 21:35:27,055 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 21:35:27,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:35:27,087 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2020-08-22 21:35:27,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:35:27,088 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-08-22 21:35:27,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:35:27,089 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-08-22 21:35:27,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:35:27,090 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-08-22 21:35:27,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:35:27,096 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-08-22 21:35:27,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:35:27,110 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2020-08-22 21:35:27,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:35:27,122 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2020-08-22 21:35:27,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:35:27,134 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 21:35:27,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:35:27,135 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 21:35:27,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:35:27,146 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2020-08-22 21:35:27,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:35:27,150 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-22 21:35:27,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:35:27,153 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-22 21:35:27,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:35:27,154 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-22 21:35:27,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:35:27,156 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-08-22 21:35:27,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:35:27,159 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-22 21:35:27,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:35:27,160 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-22 21:35:27,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:35:27,161 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2020-08-22 21:35:27,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:35:27,165 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2020-08-22 21:35:27,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:35:27,166 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-22 21:35:27,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:35:27,171 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 240 [2020-08-22 21:35:27,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:35:27,177 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 21:35:27,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:35:27,179 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 21:35:27,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:35:27,180 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2020-08-22 21:35:27,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:35:27,181 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2020-08-22 21:35:27,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:35:27,183 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-22 21:35:27,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:35:27,185 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-22 21:35:27,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:35:27,186 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2020-08-22 21:35:27,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:35:27,187 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-22 21:35:27,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:35:27,188 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2020-08-22 21:35:27,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:35:27,190 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-22 21:35:27,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:35:27,190 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-08-22 21:35:27,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:35:27,194 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 333 [2020-08-22 21:35:27,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:35:27,215 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 21:35:27,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:35:27,216 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 21:35:27,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:35:27,217 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2020-08-22 21:35:27,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:35:27,218 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2020-08-22 21:35:27,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:35:27,287 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-22 21:35:27,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:35:27,336 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-22 21:35:27,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:35:27,376 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2020-08-22 21:35:27,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:35:27,379 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2020-08-22 21:35:27,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:35:27,381 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-22 21:35:27,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:35:27,385 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 412 [2020-08-22 21:35:27,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:35:27,387 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 21:35:27,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:35:27,388 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 426 [2020-08-22 21:35:27,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:35:27,392 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-22 21:35:27,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:35:27,395 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-22 21:35:27,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:35:27,396 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-22 21:35:27,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:35:27,397 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-08-22 21:35:27,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:35:27,399 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-22 21:35:27,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:35:27,400 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-22 21:35:27,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:35:27,401 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2020-08-22 21:35:27,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:35:27,406 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 489 [2020-08-22 21:35:27,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:35:27,407 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 499 [2020-08-22 21:35:27,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:35:27,563 INFO L134 CoverageAnalysis]: Checked inductivity of 483 backedges. 119 proven. 11 refuted. 0 times theorem prover too weak. 353 trivial. 0 not checked. [2020-08-22 21:35:27,564 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [997679580] [2020-08-22 21:35:27,564 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-08-22 21:35:27,564 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16] total 16 [2020-08-22 21:35:27,564 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1646623113] [2020-08-22 21:35:27,565 INFO L459 AbstractCegarLoop]: Interpolant automaton has 16 states [2020-08-22 21:35:27,565 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-22 21:35:27,566 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2020-08-22 21:35:27,566 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=204, Unknown=0, NotChecked=0, Total=240 [2020-08-22 21:35:27,566 INFO L87 Difference]: Start difference. First operand 3973 states and 4480 transitions. Second operand 16 states. [2020-08-22 21:35:28,012 WARN L193 SmtUtils]: Spent 197.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-08-22 21:35:29,076 WARN L193 SmtUtils]: Spent 313.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-08-22 21:35:32,180 WARN L193 SmtUtils]: Spent 325.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-08-22 21:35:32,630 WARN L193 SmtUtils]: Spent 349.00 ms on a formula simplification that was a NOOP. DAG size: 195 [2020-08-22 21:35:33,252 WARN L193 SmtUtils]: Spent 478.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-08-22 21:35:33,682 WARN L193 SmtUtils]: Spent 290.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-08-22 21:35:34,070 WARN L193 SmtUtils]: Spent 349.00 ms on a formula simplification that was a NOOP. DAG size: 195 [2020-08-22 21:35:34,490 WARN L193 SmtUtils]: Spent 339.00 ms on a formula simplification that was a NOOP. DAG size: 196 [2020-08-22 21:35:34,729 WARN L193 SmtUtils]: Spent 204.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-08-22 21:35:34,999 WARN L193 SmtUtils]: Spent 225.00 ms on a formula simplification that was a NOOP. DAG size: 195 [2020-08-22 21:35:35,260 WARN L193 SmtUtils]: Spent 215.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-08-22 21:35:35,571 WARN L193 SmtUtils]: Spent 227.00 ms on a formula simplification that was a NOOP. DAG size: 196 [2020-08-22 21:35:35,831 WARN L193 SmtUtils]: Spent 219.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-08-22 21:35:36,098 WARN L193 SmtUtils]: Spent 229.00 ms on a formula simplification that was a NOOP. DAG size: 196 [2020-08-22 21:35:37,486 WARN L193 SmtUtils]: Spent 211.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-08-22 21:35:37,975 WARN L193 SmtUtils]: Spent 450.00 ms on a formula simplification. DAG size of input: 201 DAG size of output: 197 [2020-08-22 21:35:38,432 WARN L193 SmtUtils]: Spent 422.00 ms on a formula simplification. DAG size of input: 198 DAG size of output: 194 [2020-08-22 21:35:38,701 WARN L193 SmtUtils]: Spent 218.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-08-22 21:35:39,539 WARN L193 SmtUtils]: Spent 784.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2020-08-22 21:35:39,807 WARN L193 SmtUtils]: Spent 228.00 ms on a formula simplification that was a NOOP. DAG size: 199 [2020-08-22 21:35:42,065 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-22 21:35:42,066 INFO L93 Difference]: Finished difference Result 11397 states and 13066 transitions. [2020-08-22 21:35:42,066 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 41 states. [2020-08-22 21:35:42,066 INFO L78 Accepts]: Start accepts. Automaton has 16 states. Word has length 512 [2020-08-22 21:35:42,067 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-22 21:35:42,102 INFO L225 Difference]: With dead ends: 11397 [2020-08-22 21:35:42,103 INFO L226 Difference]: Without dead ends: 7552 [2020-08-22 21:35:42,116 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 169 GetRequests, 120 SyntacticMatches, 1 SemanticMatches, 48 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 581 ImplicationChecksByTransitivity, 7.5s TimeCoverageRelationStatistics Valid=491, Invalid=1959, Unknown=0, NotChecked=0, Total=2450 [2020-08-22 21:35:42,124 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7552 states. [2020-08-22 21:35:44,359 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7552 to 7355. [2020-08-22 21:35:44,359 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7355 states. [2020-08-22 21:35:44,369 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7355 states to 7355 states and 8200 transitions. [2020-08-22 21:35:44,371 INFO L78 Accepts]: Start accepts. Automaton has 7355 states and 8200 transitions. Word has length 512 [2020-08-22 21:35:44,371 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-22 21:35:44,372 INFO L479 AbstractCegarLoop]: Abstraction has 7355 states and 8200 transitions. [2020-08-22 21:35:44,372 INFO L480 AbstractCegarLoop]: Interpolant automaton has 16 states. [2020-08-22 21:35:44,372 INFO L276 IsEmpty]: Start isEmpty. Operand 7355 states and 8200 transitions. [2020-08-22 21:35:44,392 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 522 [2020-08-22 21:35:44,393 INFO L414 BasicCegarLoop]: Found error trace [2020-08-22 21:35:44,393 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, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-22 21:35:44,393 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2020-08-22 21:35:44,394 INFO L427 AbstractCegarLoop]: === Iteration 13 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-22 21:35:44,394 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-22 21:35:44,394 INFO L82 PathProgramCache]: Analyzing trace with hash 1056118833, now seen corresponding path program 1 times [2020-08-22 21:35:44,394 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-22 21:35:44,394 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [614186871] [2020-08-22 21:35:44,395 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-22 21:35:44,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:35:44,681 WARN L193 SmtUtils]: Spent 186.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-08-22 21:35:44,682 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 21:35:44,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:35:44,700 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2020-08-22 21:35:44,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:35:44,701 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-08-22 21:35:44,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:35:44,701 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-08-22 21:35:44,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:35:44,726 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-08-22 21:35:44,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:35:44,739 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-08-22 21:35:44,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:35:44,750 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2020-08-22 21:35:44,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:35:44,763 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2020-08-22 21:35:44,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:35:44,794 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2020-08-22 21:35:44,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:35:44,822 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 21:35:44,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:35:44,824 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 21:35:44,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:35:44,842 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2020-08-22 21:35:44,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:35:44,879 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-22 21:35:44,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:35:44,904 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-22 21:35:44,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:35:44,906 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-22 21:35:44,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:35:44,908 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-08-22 21:35:44,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:35:45,001 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-22 21:35:45,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:35:45,080 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-22 21:35:45,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:35:45,156 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2020-08-22 21:35:45,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:35:45,171 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2020-08-22 21:35:45,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:35:45,175 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-22 21:35:45,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:35:45,189 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 245 [2020-08-22 21:35:45,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:35:45,201 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 21:35:45,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:35:45,203 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 21:35:45,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:35:45,207 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2020-08-22 21:35:45,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:35:45,208 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2020-08-22 21:35:45,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:35:45,211 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-22 21:35:45,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:35:45,213 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-22 21:35:45,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:35:45,214 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2020-08-22 21:35:45,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:35:45,221 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-22 21:35:45,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:35:45,223 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2020-08-22 21:35:45,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:35:45,225 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-22 21:35:45,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:35:45,228 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-08-22 21:35:45,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:35:45,235 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 338 [2020-08-22 21:35:45,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:35:45,241 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 21:35:45,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:35:45,243 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 21:35:45,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:35:45,250 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2020-08-22 21:35:45,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:35:45,252 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2020-08-22 21:35:45,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:35:45,257 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-22 21:35:45,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:35:45,259 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-22 21:35:45,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:35:45,261 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2020-08-22 21:35:45,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:35:45,262 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2020-08-22 21:35:45,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:35:45,264 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-22 21:35:45,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:35:45,267 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 408 [2020-08-22 21:35:45,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:35:45,269 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 421 [2020-08-22 21:35:45,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:35:45,271 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 21:35:45,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:35:45,273 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 435 [2020-08-22 21:35:45,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:35:45,279 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-22 21:35:45,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:35:45,284 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-22 21:35:45,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:35:45,286 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-22 21:35:45,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:35:45,287 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-08-22 21:35:45,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:35:45,292 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-22 21:35:45,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:35:45,293 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-22 21:35:45,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:35:45,294 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2020-08-22 21:35:45,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:35:45,298 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 498 [2020-08-22 21:35:45,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:35:45,299 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 508 [2020-08-22 21:35:45,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:35:45,485 INFO L134 CoverageAnalysis]: Checked inductivity of 487 backedges. 88 proven. 50 refuted. 0 times theorem prover too weak. 349 trivial. 0 not checked. [2020-08-22 21:35:45,485 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [614186871] [2020-08-22 21:35:45,485 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-08-22 21:35:45,485 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [22] total 22 [2020-08-22 21:35:45,486 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1446490725] [2020-08-22 21:35:45,486 INFO L459 AbstractCegarLoop]: Interpolant automaton has 22 states [2020-08-22 21:35:45,487 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-22 21:35:45,487 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2020-08-22 21:35:45,488 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=52, Invalid=410, Unknown=0, NotChecked=0, Total=462 [2020-08-22 21:35:45,488 INFO L87 Difference]: Start difference. First operand 7355 states and 8200 transitions. Second operand 22 states. [2020-08-22 21:35:45,978 WARN L193 SmtUtils]: Spent 200.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-08-22 21:35:46,332 WARN L193 SmtUtils]: Spent 209.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-08-22 21:35:46,699 WARN L193 SmtUtils]: Spent 334.00 ms on a formula simplification that was a NOOP. DAG size: 196 [2020-08-22 21:35:46,953 WARN L193 SmtUtils]: Spent 204.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-08-22 21:35:47,203 WARN L193 SmtUtils]: Spent 209.00 ms on a formula simplification that was a NOOP. DAG size: 194 [2020-08-22 21:35:47,438 WARN L193 SmtUtils]: Spent 203.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-08-22 21:35:48,331 WARN L193 SmtUtils]: Spent 195.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-08-22 21:35:50,605 WARN L193 SmtUtils]: Spent 212.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-08-22 21:35:50,908 WARN L193 SmtUtils]: Spent 225.00 ms on a formula simplification that was a NOOP. DAG size: 195 [2020-08-22 21:35:51,219 WARN L193 SmtUtils]: Spent 211.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-08-22 21:35:51,534 WARN L193 SmtUtils]: Spent 213.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-08-22 21:35:51,795 WARN L193 SmtUtils]: Spent 225.00 ms on a formula simplification that was a NOOP. DAG size: 195 [2020-08-22 21:35:52,072 WARN L193 SmtUtils]: Spent 224.00 ms on a formula simplification that was a NOOP. DAG size: 195 [2020-08-22 21:35:52,318 WARN L193 SmtUtils]: Spent 211.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-08-22 21:35:52,618 WARN L193 SmtUtils]: Spent 225.00 ms on a formula simplification that was a NOOP. DAG size: 195 [2020-08-22 21:35:52,895 WARN L193 SmtUtils]: Spent 210.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-08-22 21:35:53,240 WARN L193 SmtUtils]: Spent 223.00 ms on a formula simplification that was a NOOP. DAG size: 195 [2020-08-22 21:35:53,502 WARN L193 SmtUtils]: Spent 210.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-08-22 21:35:53,778 WARN L193 SmtUtils]: Spent 224.00 ms on a formula simplification that was a NOOP. DAG size: 195 [2020-08-22 21:35:54,442 WARN L193 SmtUtils]: Spent 551.00 ms on a formula simplification. DAG size of input: 198 DAG size of output: 191 [2020-08-22 21:35:55,031 WARN L193 SmtUtils]: Spent 439.00 ms on a formula simplification. DAG size of input: 203 DAG size of output: 193 [2020-08-22 21:35:55,506 WARN L193 SmtUtils]: Spent 414.00 ms on a formula simplification. DAG size of input: 198 DAG size of output: 191 [2020-08-22 21:35:59,425 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-22 21:35:59,426 INFO L93 Difference]: Finished difference Result 14608 states and 16657 transitions. [2020-08-22 21:35:59,426 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 52 states. [2020-08-22 21:35:59,426 INFO L78 Accepts]: Start accepts. Automaton has 22 states. Word has length 521 [2020-08-22 21:35:59,427 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-22 21:35:59,458 INFO L225 Difference]: With dead ends: 14608 [2020-08-22 21:35:59,458 INFO L226 Difference]: Without dead ends: 7933 [2020-08-22 21:35:59,477 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 193 GetRequests, 124 SyntacticMatches, 3 SemanticMatches, 66 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1197 ImplicationChecksByTransitivity, 7.2s TimeCoverageRelationStatistics Valid=880, Invalid=3676, Unknown=0, NotChecked=0, Total=4556 [2020-08-22 21:35:59,485 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7933 states. [2020-08-22 21:36:01,703 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7933 to 7005. [2020-08-22 21:36:01,703 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7005 states. [2020-08-22 21:36:01,713 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7005 states to 7005 states and 7765 transitions. [2020-08-22 21:36:01,716 INFO L78 Accepts]: Start accepts. Automaton has 7005 states and 7765 transitions. Word has length 521 [2020-08-22 21:36:01,717 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-22 21:36:01,717 INFO L479 AbstractCegarLoop]: Abstraction has 7005 states and 7765 transitions. [2020-08-22 21:36:01,717 INFO L480 AbstractCegarLoop]: Interpolant automaton has 22 states. [2020-08-22 21:36:01,717 INFO L276 IsEmpty]: Start isEmpty. Operand 7005 states and 7765 transitions. [2020-08-22 21:36:01,735 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 527 [2020-08-22 21:36:01,736 INFO L414 BasicCegarLoop]: Found error trace [2020-08-22 21:36:01,736 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, 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, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-22 21:36:01,736 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2020-08-22 21:36:01,736 INFO L427 AbstractCegarLoop]: === Iteration 14 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-22 21:36:01,737 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-22 21:36:01,737 INFO L82 PathProgramCache]: Analyzing trace with hash 150624261, now seen corresponding path program 1 times [2020-08-22 21:36:01,737 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-22 21:36:01,737 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [897869606] [2020-08-22 21:36:01,737 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-22 21:36:01,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:36:02,112 WARN L193 SmtUtils]: Spent 243.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-08-22 21:36:02,113 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 21:36:02,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:36:02,144 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2020-08-22 21:36:02,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:36:02,146 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-08-22 21:36:02,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:36:02,147 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-08-22 21:36:02,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:36:02,182 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-08-22 21:36:02,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:36:02,199 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-08-22 21:36:02,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:36:02,214 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2020-08-22 21:36:02,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:36:02,232 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2020-08-22 21:36:02,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:36:02,248 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 21:36:02,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:36:02,249 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 21:36:02,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:36:02,263 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2020-08-22 21:36:02,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:36:02,267 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-22 21:36:02,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:36:02,274 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-22 21:36:02,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:36:02,276 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-22 21:36:02,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:36:02,277 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-08-22 21:36:02,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:36:02,279 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-22 21:36:02,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:36:02,280 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-22 21:36:02,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:36:02,281 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2020-08-22 21:36:02,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:36:02,285 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2020-08-22 21:36:02,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:36:02,286 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-22 21:36:02,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:36:02,304 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 236 [2020-08-22 21:36:02,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:36:02,318 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 245 [2020-08-22 21:36:02,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:36:02,344 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 21:36:02,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:36:02,345 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 21:36:02,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:36:02,347 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2020-08-22 21:36:02,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:36:02,348 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2020-08-22 21:36:02,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:36:02,447 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-22 21:36:02,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:36:02,513 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-22 21:36:02,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:36:02,573 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2020-08-22 21:36:02,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:36:02,574 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-22 21:36:02,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:36:02,576 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2020-08-22 21:36:02,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:36:02,581 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-22 21:36:02,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:36:02,582 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-08-22 21:36:02,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:36:02,589 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 338 [2020-08-22 21:36:02,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:36:02,594 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 21:36:02,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:36:02,599 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 21:36:02,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:36:02,600 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2020-08-22 21:36:02,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:36:02,601 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2020-08-22 21:36:02,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:36:02,603 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-22 21:36:02,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:36:02,606 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-22 21:36:02,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:36:02,607 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2020-08-22 21:36:02,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:36:02,609 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2020-08-22 21:36:02,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:36:02,610 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-22 21:36:02,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:36:02,613 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 408 [2020-08-22 21:36:02,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:36:02,614 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 416 [2020-08-22 21:36:02,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:36:02,615 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 426 [2020-08-22 21:36:02,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:36:02,617 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 21:36:02,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:36:02,617 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 440 [2020-08-22 21:36:02,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:36:02,622 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-22 21:36:02,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:36:02,626 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-22 21:36:02,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:36:02,627 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-22 21:36:02,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:36:02,628 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-08-22 21:36:02,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:36:02,630 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-22 21:36:02,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:36:02,631 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-22 21:36:02,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:36:02,632 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2020-08-22 21:36:02,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:36:02,636 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 503 [2020-08-22 21:36:02,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:36:02,637 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 513 [2020-08-22 21:36:02,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:36:02,795 INFO L134 CoverageAnalysis]: Checked inductivity of 491 backedges. 123 proven. 31 refuted. 0 times theorem prover too weak. 337 trivial. 0 not checked. [2020-08-22 21:36:02,795 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [897869606] [2020-08-22 21:36:02,795 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-08-22 21:36:02,796 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [22] total 22 [2020-08-22 21:36:02,796 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1438812386] [2020-08-22 21:36:02,797 INFO L459 AbstractCegarLoop]: Interpolant automaton has 22 states [2020-08-22 21:36:02,797 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-22 21:36:02,797 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2020-08-22 21:36:02,797 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=52, Invalid=410, Unknown=0, NotChecked=0, Total=462 [2020-08-22 21:36:02,797 INFO L87 Difference]: Start difference. First operand 7005 states and 7765 transitions. Second operand 22 states. [2020-08-22 21:36:03,287 WARN L193 SmtUtils]: Spent 198.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-08-22 21:36:03,635 WARN L193 SmtUtils]: Spent 210.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-08-22 21:36:03,887 WARN L193 SmtUtils]: Spent 222.00 ms on a formula simplification that was a NOOP. DAG size: 196 [2020-08-22 21:36:04,140 WARN L193 SmtUtils]: Spent 204.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-08-22 21:36:04,387 WARN L193 SmtUtils]: Spent 208.00 ms on a formula simplification that was a NOOP. DAG size: 194 [2020-08-22 21:36:04,621 WARN L193 SmtUtils]: Spent 203.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-08-22 21:36:05,721 WARN L193 SmtUtils]: Spent 195.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-08-22 21:36:08,046 WARN L193 SmtUtils]: Spent 212.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-08-22 21:36:08,350 WARN L193 SmtUtils]: Spent 225.00 ms on a formula simplification that was a NOOP. DAG size: 195 [2020-08-22 21:36:08,666 WARN L193 SmtUtils]: Spent 210.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-08-22 21:36:08,996 WARN L193 SmtUtils]: Spent 211.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-08-22 21:36:09,256 WARN L193 SmtUtils]: Spent 223.00 ms on a formula simplification that was a NOOP. DAG size: 195 [2020-08-22 21:36:09,532 WARN L193 SmtUtils]: Spent 223.00 ms on a formula simplification that was a NOOP. DAG size: 195 [2020-08-22 21:36:09,782 WARN L193 SmtUtils]: Spent 214.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-08-22 21:36:10,083 WARN L193 SmtUtils]: Spent 227.00 ms on a formula simplification that was a NOOP. DAG size: 195 [2020-08-22 21:36:10,352 WARN L193 SmtUtils]: Spent 211.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-08-22 21:36:10,708 WARN L193 SmtUtils]: Spent 225.00 ms on a formula simplification that was a NOOP. DAG size: 195 [2020-08-22 21:36:10,974 WARN L193 SmtUtils]: Spent 212.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-08-22 21:36:11,250 WARN L193 SmtUtils]: Spent 224.00 ms on a formula simplification that was a NOOP. DAG size: 195 [2020-08-22 21:36:13,167 WARN L193 SmtUtils]: Spent 418.00 ms on a formula simplification. DAG size of input: 198 DAG size of output: 191 [2020-08-22 21:36:13,858 WARN L193 SmtUtils]: Spent 626.00 ms on a formula simplification. DAG size of input: 203 DAG size of output: 193 [2020-08-22 21:36:14,322 WARN L193 SmtUtils]: Spent 413.00 ms on a formula simplification. DAG size of input: 198 DAG size of output: 191 [2020-08-22 21:36:16,899 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-22 21:36:16,900 INFO L93 Difference]: Finished difference Result 13778 states and 15638 transitions. [2020-08-22 21:36:16,905 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 53 states. [2020-08-22 21:36:16,905 INFO L78 Accepts]: Start accepts. Automaton has 22 states. Word has length 526 [2020-08-22 21:36:16,906 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-22 21:36:16,935 INFO L225 Difference]: With dead ends: 13778 [2020-08-22 21:36:16,936 INFO L226 Difference]: Without dead ends: 7453 [2020-08-22 21:36:16,954 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 195 GetRequests, 127 SyntacticMatches, 1 SemanticMatches, 67 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1221 ImplicationChecksByTransitivity, 7.1s TimeCoverageRelationStatistics Valid=895, Invalid=3797, Unknown=0, NotChecked=0, Total=4692 [2020-08-22 21:36:16,962 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7453 states. [2020-08-22 21:36:19,143 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7453 to 6513. [2020-08-22 21:36:19,143 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6513 states. [2020-08-22 21:36:19,153 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6513 states to 6513 states and 7213 transitions. [2020-08-22 21:36:19,155 INFO L78 Accepts]: Start accepts. Automaton has 6513 states and 7213 transitions. Word has length 526 [2020-08-22 21:36:19,156 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-22 21:36:19,156 INFO L479 AbstractCegarLoop]: Abstraction has 6513 states and 7213 transitions. [2020-08-22 21:36:19,156 INFO L480 AbstractCegarLoop]: Interpolant automaton has 22 states. [2020-08-22 21:36:19,156 INFO L276 IsEmpty]: Start isEmpty. Operand 6513 states and 7213 transitions. [2020-08-22 21:36:19,168 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 527 [2020-08-22 21:36:19,168 INFO L414 BasicCegarLoop]: Found error trace [2020-08-22 21:36:19,168 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, 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, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-22 21:36:19,169 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2020-08-22 21:36:19,169 INFO L427 AbstractCegarLoop]: === Iteration 15 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-22 21:36:19,169 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-22 21:36:19,169 INFO L82 PathProgramCache]: Analyzing trace with hash -508828733, now seen corresponding path program 2 times [2020-08-22 21:36:19,169 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-22 21:36:19,169 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [954043899] [2020-08-22 21:36:19,170 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-22 21:36:19,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:36:19,461 WARN L193 SmtUtils]: Spent 203.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-08-22 21:36:19,462 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 21:36:19,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:36:19,480 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2020-08-22 21:36:19,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:36:19,481 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-08-22 21:36:19,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:36:19,482 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-08-22 21:36:19,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:36:19,483 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-08-22 21:36:19,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:36:19,503 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-08-22 21:36:19,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:36:19,512 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2020-08-22 21:36:19,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:36:19,525 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2020-08-22 21:36:19,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:36:19,534 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 21:36:19,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:36:19,535 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 21:36:19,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:36:19,545 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2020-08-22 21:36:19,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:36:19,548 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-22 21:36:19,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:36:19,551 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-22 21:36:19,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:36:19,553 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-22 21:36:19,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:36:19,554 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-08-22 21:36:19,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:36:19,556 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-22 21:36:19,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:36:19,557 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-22 21:36:19,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:36:19,558 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2020-08-22 21:36:19,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:36:19,562 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2020-08-22 21:36:19,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:36:19,631 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-22 21:36:19,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:36:19,670 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 240 [2020-08-22 21:36:19,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:36:20,451 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 21:36:20,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:36:20,453 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 21:36:20,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:36:20,454 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2020-08-22 21:36:20,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:36:20,464 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2020-08-22 21:36:20,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:36:20,468 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-22 21:36:20,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:36:20,472 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-22 21:36:20,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:36:20,473 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2020-08-22 21:36:20,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:36:20,474 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-22 21:36:20,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:36:20,475 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2020-08-22 21:36:20,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:36:20,477 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-22 21:36:20,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:36:20,478 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-08-22 21:36:20,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:36:20,496 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 329 [2020-08-22 21:36:20,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:36:20,498 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 338 [2020-08-22 21:36:20,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:36:20,534 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 21:36:20,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:36:20,536 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 21:36:20,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:36:20,537 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2020-08-22 21:36:20,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:36:20,550 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2020-08-22 21:36:20,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:36:20,554 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-22 21:36:20,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:36:20,555 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-22 21:36:20,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:36:20,556 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2020-08-22 21:36:20,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:36:20,557 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2020-08-22 21:36:20,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:36:20,616 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-22 21:36:20,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:36:20,643 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 408 [2020-08-22 21:36:20,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:36:20,644 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 416 [2020-08-22 21:36:20,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:36:20,644 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 426 [2020-08-22 21:36:20,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:36:20,646 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 21:36:20,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:36:20,647 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 440 [2020-08-22 21:36:20,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:36:20,651 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-22 21:36:20,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:36:20,654 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-22 21:36:20,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:36:20,655 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-22 21:36:20,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:36:20,657 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-08-22 21:36:20,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:36:20,658 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-22 21:36:20,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:36:20,659 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-22 21:36:20,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:36:20,661 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2020-08-22 21:36:20,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:36:20,664 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 503 [2020-08-22 21:36:20,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:36:20,665 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 513 [2020-08-22 21:36:20,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:36:20,790 INFO L134 CoverageAnalysis]: Checked inductivity of 491 backedges. 140 proven. 36 refuted. 0 times theorem prover too weak. 315 trivial. 0 not checked. [2020-08-22 21:36:20,791 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [954043899] [2020-08-22 21:36:20,791 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-08-22 21:36:20,791 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [18] total 18 [2020-08-22 21:36:20,791 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1058591469] [2020-08-22 21:36:20,792 INFO L459 AbstractCegarLoop]: Interpolant automaton has 18 states [2020-08-22 21:36:20,792 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-22 21:36:20,792 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2020-08-22 21:36:20,792 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=259, Unknown=0, NotChecked=0, Total=306 [2020-08-22 21:36:20,792 INFO L87 Difference]: Start difference. First operand 6513 states and 7213 transitions. Second operand 18 states. [2020-08-22 21:36:21,289 WARN L193 SmtUtils]: Spent 198.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-08-22 21:36:22,835 WARN L193 SmtUtils]: Spent 209.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-08-22 21:36:23,104 WARN L193 SmtUtils]: Spent 220.00 ms on a formula simplification that was a NOOP. DAG size: 195 [2020-08-22 21:36:23,609 WARN L193 SmtUtils]: Spent 410.00 ms on a formula simplification. DAG size of input: 194 DAG size of output: 191 [2020-08-22 21:36:23,873 WARN L193 SmtUtils]: Spent 204.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-08-22 21:36:24,332 WARN L193 SmtUtils]: Spent 422.00 ms on a formula simplification. DAG size of input: 197 DAG size of output: 193 [2020-08-22 21:36:24,583 WARN L193 SmtUtils]: Spent 217.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-08-22 21:36:25,024 WARN L193 SmtUtils]: Spent 408.00 ms on a formula simplification. DAG size of input: 194 DAG size of output: 191 [2020-08-22 21:36:25,327 WARN L193 SmtUtils]: Spent 217.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-08-22 21:36:25,624 WARN L193 SmtUtils]: Spent 229.00 ms on a formula simplification that was a NOOP. DAG size: 195 [2020-08-22 21:36:25,884 WARN L193 SmtUtils]: Spent 214.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-08-22 21:36:26,138 WARN L193 SmtUtils]: Spent 197.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-08-22 21:36:27,609 WARN L193 SmtUtils]: Spent 210.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-08-22 21:36:27,877 WARN L193 SmtUtils]: Spent 224.00 ms on a formula simplification that was a NOOP. DAG size: 195 [2020-08-22 21:36:33,155 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-22 21:36:33,156 INFO L93 Difference]: Finished difference Result 13728 states and 15831 transitions. [2020-08-22 21:36:33,156 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 52 states. [2020-08-22 21:36:33,156 INFO L78 Accepts]: Start accepts. Automaton has 18 states. Word has length 526 [2020-08-22 21:36:33,156 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-22 21:36:33,188 INFO L225 Difference]: With dead ends: 13728 [2020-08-22 21:36:33,189 INFO L226 Difference]: Without dead ends: 9831 [2020-08-22 21:36:33,203 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 205 GetRequests, 137 SyntacticMatches, 8 SemanticMatches, 60 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1029 ImplicationChecksByTransitivity, 4.8s TimeCoverageRelationStatistics Valid=719, Invalid=3063, Unknown=0, NotChecked=0, Total=3782 [2020-08-22 21:36:33,211 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9831 states. [2020-08-22 21:36:35,708 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9831 to 7762. [2020-08-22 21:36:35,709 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7762 states. [2020-08-22 21:36:35,720 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7762 states to 7762 states and 8572 transitions. [2020-08-22 21:36:35,723 INFO L78 Accepts]: Start accepts. Automaton has 7762 states and 8572 transitions. Word has length 526 [2020-08-22 21:36:35,724 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-22 21:36:35,724 INFO L479 AbstractCegarLoop]: Abstraction has 7762 states and 8572 transitions. [2020-08-22 21:36:35,724 INFO L480 AbstractCegarLoop]: Interpolant automaton has 18 states. [2020-08-22 21:36:35,724 INFO L276 IsEmpty]: Start isEmpty. Operand 7762 states and 8572 transitions. [2020-08-22 21:36:35,741 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 538 [2020-08-22 21:36:35,742 INFO L414 BasicCegarLoop]: Found error trace [2020-08-22 21:36:35,742 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, 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 21:36:35,742 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2020-08-22 21:36:35,742 INFO L427 AbstractCegarLoop]: === Iteration 16 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-22 21:36:35,743 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-22 21:36:35,743 INFO L82 PathProgramCache]: Analyzing trace with hash 1830661454, now seen corresponding path program 1 times [2020-08-22 21:36:35,743 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-22 21:36:35,743 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [283395647] [2020-08-22 21:36:35,743 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-22 21:36:35,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:36:36,057 WARN L193 SmtUtils]: Spent 185.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-08-22 21:36:36,058 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 21:36:36,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:36:36,075 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2020-08-22 21:36:36,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:36:36,076 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-08-22 21:36:36,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:36:36,077 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-08-22 21:36:36,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:36:36,078 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-08-22 21:36:36,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:36:36,094 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-08-22 21:36:36,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:36:36,109 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2020-08-22 21:36:36,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:36:36,122 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2020-08-22 21:36:36,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:36:36,130 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 21:36:36,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:36:36,131 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 21:36:36,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:36:36,142 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2020-08-22 21:36:36,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:36:36,145 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-22 21:36:36,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:36:36,148 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-22 21:36:36,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:36:36,149 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-22 21:36:36,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:36:36,150 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-08-22 21:36:36,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:36:36,152 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-22 21:36:36,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:36:36,153 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-22 21:36:36,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:36:36,154 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2020-08-22 21:36:36,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:36:36,158 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2020-08-22 21:36:36,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:36:36,231 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-22 21:36:36,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:36:36,274 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 240 [2020-08-22 21:36:36,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:36:36,306 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 21:36:36,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:36:36,308 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 21:36:36,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:36:36,309 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2020-08-22 21:36:36,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:36:36,318 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2020-08-22 21:36:36,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:36:36,323 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-22 21:36:36,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:36:36,324 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-22 21:36:36,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:36:36,325 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2020-08-22 21:36:36,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:36:36,326 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-22 21:36:36,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:36:36,327 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2020-08-22 21:36:36,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:36:36,329 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-22 21:36:36,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:36:36,330 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-08-22 21:36:36,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:36:36,349 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 329 [2020-08-22 21:36:36,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:36:36,350 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 338 [2020-08-22 21:36:36,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:36:36,368 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 21:36:36,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:36:36,371 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 21:36:36,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:36:36,372 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2020-08-22 21:36:36,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:36:36,385 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2020-08-22 21:36:36,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:36:36,388 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-22 21:36:36,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:36:36,389 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-22 21:36:36,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:36:36,389 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2020-08-22 21:36:36,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:36:36,390 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2020-08-22 21:36:36,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:36:36,392 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-22 21:36:36,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:36:36,393 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-08-22 21:36:36,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:36:36,397 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 418 [2020-08-22 21:36:36,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:36:36,427 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 427 [2020-08-22 21:36:36,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:36:36,429 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 437 [2020-08-22 21:36:36,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:36:36,430 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 21:36:36,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:36:36,431 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 451 [2020-08-22 21:36:36,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:36:36,451 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-22 21:36:36,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:36:36,456 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-22 21:36:36,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:36:36,459 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-22 21:36:36,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:36:36,460 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-08-22 21:36:36,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:36:36,463 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-22 21:36:36,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:36:36,464 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-22 21:36:36,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:36:36,465 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2020-08-22 21:36:36,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:36:36,470 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 514 [2020-08-22 21:36:36,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:36:36,471 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 524 [2020-08-22 21:36:36,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:36:36,735 INFO L134 CoverageAnalysis]: Checked inductivity of 532 backedges. 129 proven. 64 refuted. 0 times theorem prover too weak. 339 trivial. 0 not checked. [2020-08-22 21:36:36,735 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [283395647] [2020-08-22 21:36:36,735 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-08-22 21:36:36,736 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [18] total 18 [2020-08-22 21:36:36,736 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2118953877] [2020-08-22 21:36:36,736 INFO L459 AbstractCegarLoop]: Interpolant automaton has 18 states [2020-08-22 21:36:36,737 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-22 21:36:36,737 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2020-08-22 21:36:36,737 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=49, Invalid=257, Unknown=0, NotChecked=0, Total=306 [2020-08-22 21:36:36,737 INFO L87 Difference]: Start difference. First operand 7762 states and 8572 transitions. Second operand 18 states. [2020-08-22 21:36:37,259 WARN L193 SmtUtils]: Spent 200.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-08-22 21:36:38,752 WARN L193 SmtUtils]: Spent 210.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-08-22 21:36:39,019 WARN L193 SmtUtils]: Spent 222.00 ms on a formula simplification that was a NOOP. DAG size: 195 [2020-08-22 21:36:39,291 WARN L193 SmtUtils]: Spent 199.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-08-22 21:36:39,751 WARN L193 SmtUtils]: Spent 419.00 ms on a formula simplification. DAG size of input: 197 DAG size of output: 191 [2020-08-22 21:36:40,011 WARN L193 SmtUtils]: Spent 205.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-08-22 21:36:40,489 WARN L193 SmtUtils]: Spent 442.00 ms on a formula simplification. DAG size of input: 202 DAG size of output: 193 [2020-08-22 21:36:40,739 WARN L193 SmtUtils]: Spent 217.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-08-22 21:36:41,193 WARN L193 SmtUtils]: Spent 414.00 ms on a formula simplification. DAG size of input: 197 DAG size of output: 191 [2020-08-22 21:36:41,496 WARN L193 SmtUtils]: Spent 219.00 ms on a formula simplification that was a NOOP. DAG size: 196 [2020-08-22 21:36:41,806 WARN L193 SmtUtils]: Spent 242.00 ms on a formula simplification that was a NOOP. DAG size: 201 [2020-08-22 21:36:42,070 WARN L193 SmtUtils]: Spent 221.00 ms on a formula simplification that was a NOOP. DAG size: 196 [2020-08-22 21:36:42,331 WARN L193 SmtUtils]: Spent 203.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-08-22 21:36:43,345 WARN L193 SmtUtils]: Spent 211.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-08-22 21:36:43,625 WARN L193 SmtUtils]: Spent 224.00 ms on a formula simplification that was a NOOP. DAG size: 195 [2020-08-22 21:36:44,217 WARN L193 SmtUtils]: Spent 428.00 ms on a formula simplification. DAG size of input: 196 DAG size of output: 194 [2020-08-22 21:36:44,796 WARN L193 SmtUtils]: Spent 454.00 ms on a formula simplification. DAG size of input: 201 DAG size of output: 197 [2020-08-22 21:36:45,291 WARN L193 SmtUtils]: Spent 428.00 ms on a formula simplification. DAG size of input: 196 DAG size of output: 194 [2020-08-22 21:36:45,957 WARN L193 SmtUtils]: Spent 211.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-08-22 21:36:46,231 WARN L193 SmtUtils]: Spent 225.00 ms on a formula simplification that was a NOOP. DAG size: 195 [2020-08-22 21:36:48,904 WARN L193 SmtUtils]: Spent 197.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-08-22 21:36:49,750 WARN L193 SmtUtils]: Spent 210.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-08-22 21:36:50,007 WARN L193 SmtUtils]: Spent 221.00 ms on a formula simplification that was a NOOP. DAG size: 195 [2020-08-22 21:36:50,568 WARN L193 SmtUtils]: Spent 502.00 ms on a formula simplification. DAG size of input: 198 DAG size of output: 191 [2020-08-22 21:36:51,073 WARN L193 SmtUtils]: Spent 440.00 ms on a formula simplification. DAG size of input: 203 DAG size of output: 193 [2020-08-22 21:36:51,526 WARN L193 SmtUtils]: Spent 416.00 ms on a formula simplification. DAG size of input: 198 DAG size of output: 191 [2020-08-22 21:36:58,021 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-22 21:36:58,021 INFO L93 Difference]: Finished difference Result 17887 states and 20777 transitions. [2020-08-22 21:36:58,021 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 87 states. [2020-08-22 21:36:58,021 INFO L78 Accepts]: Start accepts. Automaton has 18 states. Word has length 537 [2020-08-22 21:36:58,022 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-22 21:36:58,063 INFO L225 Difference]: With dead ends: 17887 [2020-08-22 21:36:58,064 INFO L226 Difference]: Without dead ends: 13270 [2020-08-22 21:36:58,083 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 259 GetRequests, 158 SyntacticMatches, 7 SemanticMatches, 94 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3035 ImplicationChecksByTransitivity, 9.5s TimeCoverageRelationStatistics Valid=1590, Invalid=7530, Unknown=0, NotChecked=0, Total=9120 [2020-08-22 21:36:58,097 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13270 states. [2020-08-22 21:37:01,285 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13270 to 9454. [2020-08-22 21:37:01,285 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9454 states. [2020-08-22 21:37:01,296 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9454 states to 9454 states and 10410 transitions. [2020-08-22 21:37:01,299 INFO L78 Accepts]: Start accepts. Automaton has 9454 states and 10410 transitions. Word has length 537 [2020-08-22 21:37:01,299 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-22 21:37:01,299 INFO L479 AbstractCegarLoop]: Abstraction has 9454 states and 10410 transitions. [2020-08-22 21:37:01,299 INFO L480 AbstractCegarLoop]: Interpolant automaton has 18 states. [2020-08-22 21:37:01,300 INFO L276 IsEmpty]: Start isEmpty. Operand 9454 states and 10410 transitions. [2020-08-22 21:37:01,315 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 607 [2020-08-22 21:37:01,316 INFO L414 BasicCegarLoop]: Found error trace [2020-08-22 21:37:01,316 INFO L422 BasicCegarLoop]: trace histogram [9, 9, 9, 9, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-22 21:37:01,316 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2020-08-22 21:37:01,316 INFO L427 AbstractCegarLoop]: === Iteration 17 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-22 21:37:01,317 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-22 21:37:01,317 INFO L82 PathProgramCache]: Analyzing trace with hash 1902655728, now seen corresponding path program 1 times [2020-08-22 21:37:01,317 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-22 21:37:01,317 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1116768760] [2020-08-22 21:37:01,317 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-22 21:37:01,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:37:01,619 WARN L193 SmtUtils]: Spent 202.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-08-22 21:37:01,620 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 21:37:01,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:37:01,659 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2020-08-22 21:37:01,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:37:01,661 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-08-22 21:37:01,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:37:01,662 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-08-22 21:37:01,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:37:01,663 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-08-22 21:37:01,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:37:01,674 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-08-22 21:37:01,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:37:01,684 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2020-08-22 21:37:01,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:37:01,702 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2020-08-22 21:37:01,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:37:01,709 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 21:37:01,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:37:01,710 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 21:37:01,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:37:01,720 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2020-08-22 21:37:01,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:37:01,725 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-22 21:37:01,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:37:01,729 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-22 21:37:01,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:37:01,731 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-22 21:37:01,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:37:01,734 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-08-22 21:37:01,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:37:01,737 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-22 21:37:01,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:37:01,739 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-22 21:37:01,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:37:01,745 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2020-08-22 21:37:01,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:37:01,760 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2020-08-22 21:37:01,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:37:01,763 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-22 21:37:01,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:37:01,772 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 240 [2020-08-22 21:37:01,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:37:01,776 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 21:37:01,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:37:01,777 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 21:37:01,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:37:01,778 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2020-08-22 21:37:01,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:37:01,779 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2020-08-22 21:37:01,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:37:01,789 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-22 21:37:01,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:37:01,790 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-22 21:37:01,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:37:01,791 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2020-08-22 21:37:01,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:37:01,792 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-22 21:37:01,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:37:01,793 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2020-08-22 21:37:01,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:37:01,794 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-22 21:37:01,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:37:01,795 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-08-22 21:37:01,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:37:01,799 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 333 [2020-08-22 21:37:01,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:37:01,804 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 21:37:01,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:37:01,806 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 21:37:01,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:37:01,807 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2020-08-22 21:37:01,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:37:01,808 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2020-08-22 21:37:01,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:37:01,810 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-22 21:37:01,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:37:01,811 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-22 21:37:01,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:37:01,812 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2020-08-22 21:37:01,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:37:01,813 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-22 21:37:01,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:37:01,815 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2020-08-22 21:37:01,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:37:01,817 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-22 21:37:01,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:37:01,818 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-08-22 21:37:01,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:37:01,823 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 418 [2020-08-22 21:37:01,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:37:01,836 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 435 [2020-08-22 21:37:01,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:37:01,838 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-22 21:37:01,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:37:01,839 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 444 [2020-08-22 21:37:01,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:37:01,843 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 21:37:01,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:37:01,844 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 21:37:01,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:37:01,845 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2020-08-22 21:37:01,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:37:01,847 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-22 21:37:01,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:37:01,848 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-08-22 21:37:01,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:37:01,851 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 492 [2020-08-22 21:37:01,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:37:01,852 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 506 [2020-08-22 21:37:01,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:37:01,854 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 21:37:01,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:37:01,855 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 520 [2020-08-22 21:37:01,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:37:01,860 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-22 21:37:01,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:37:01,863 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-22 21:37:01,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:37:01,865 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-22 21:37:01,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:37:01,866 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-08-22 21:37:01,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:37:01,868 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-22 21:37:01,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:37:01,869 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-22 21:37:01,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:37:01,870 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2020-08-22 21:37:01,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:37:01,874 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 583 [2020-08-22 21:37:01,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:37:01,875 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 593 [2020-08-22 21:37:01,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:37:02,090 INFO L134 CoverageAnalysis]: Checked inductivity of 806 backedges. 133 proven. 4 refuted. 0 times theorem prover too weak. 669 trivial. 0 not checked. [2020-08-22 21:37:02,090 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1116768760] [2020-08-22 21:37:02,090 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-08-22 21:37:02,090 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9] total 9 [2020-08-22 21:37:02,090 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1446382367] [2020-08-22 21:37:02,091 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-08-22 21:37:02,091 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-22 21:37:02,091 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-08-22 21:37:02,091 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2020-08-22 21:37:02,092 INFO L87 Difference]: Start difference. First operand 9454 states and 10410 transitions. Second operand 9 states. [2020-08-22 21:37:02,989 WARN L193 SmtUtils]: Spent 201.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-08-22 21:37:06,440 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-22 21:37:06,440 INFO L93 Difference]: Finished difference Result 11222 states and 12455 transitions. [2020-08-22 21:37:06,441 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2020-08-22 21:37:06,441 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 606 [2020-08-22 21:37:06,441 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-22 21:37:06,455 INFO L225 Difference]: With dead ends: 11222 [2020-08-22 21:37:06,455 INFO L226 Difference]: Without dead ends: 4079 [2020-08-22 21:37:06,470 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 158 GetRequests, 138 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 82 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=145, Invalid=317, Unknown=0, NotChecked=0, Total=462 [2020-08-22 21:37:06,474 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4079 states. [2020-08-22 21:37:07,986 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4079 to 3878. [2020-08-22 21:37:07,986 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3878 states. [2020-08-22 21:37:07,991 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3878 states to 3878 states and 4166 transitions. [2020-08-22 21:37:07,992 INFO L78 Accepts]: Start accepts. Automaton has 3878 states and 4166 transitions. Word has length 606 [2020-08-22 21:37:07,992 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-22 21:37:07,992 INFO L479 AbstractCegarLoop]: Abstraction has 3878 states and 4166 transitions. [2020-08-22 21:37:07,993 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-08-22 21:37:07,993 INFO L276 IsEmpty]: Start isEmpty. Operand 3878 states and 4166 transitions. [2020-08-22 21:37:08,001 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 625 [2020-08-22 21:37:08,001 INFO L414 BasicCegarLoop]: Found error trace [2020-08-22 21:37:08,001 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, 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2020-08-22 21:37:08,002 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2020-08-22 21:37:08,002 INFO L427 AbstractCegarLoop]: === Iteration 18 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-22 21:37:08,002 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-22 21:37:08,002 INFO L82 PathProgramCache]: Analyzing trace with hash -1271303314, now seen corresponding path program 3 times [2020-08-22 21:37:08,002 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-22 21:37:08,002 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [937895392] [2020-08-22 21:37:08,002 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-22 21:37:08,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:37:08,316 WARN L193 SmtUtils]: Spent 192.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-08-22 21:37:08,317 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 21:37:08,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:37:08,331 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2020-08-22 21:37:08,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:37:08,332 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-08-22 21:37:08,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:37:08,332 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-08-22 21:37:08,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:37:08,333 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-08-22 21:37:08,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:37:08,339 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-08-22 21:37:08,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:37:08,347 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2020-08-22 21:37:08,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:37:08,360 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2020-08-22 21:37:08,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:37:08,365 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 21:37:08,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:37:08,366 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 21:37:08,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:37:08,374 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2020-08-22 21:37:08,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:37:08,378 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-22 21:37:08,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:37:08,380 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-22 21:37:08,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:37:08,382 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-22 21:37:08,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:37:08,383 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-08-22 21:37:08,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:37:08,384 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-22 21:37:08,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:37:08,385 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-22 21:37:08,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:37:08,386 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2020-08-22 21:37:08,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:37:08,390 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2020-08-22 21:37:08,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:37:08,391 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-22 21:37:08,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:37:08,395 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 240 [2020-08-22 21:37:08,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:37:08,399 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 21:37:08,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:37:08,400 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 21:37:08,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:37:08,401 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2020-08-22 21:37:08,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:37:08,402 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2020-08-22 21:37:08,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:37:08,403 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-22 21:37:08,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:37:08,404 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-22 21:37:08,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:37:08,405 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2020-08-22 21:37:08,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:37:08,406 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-22 21:37:08,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:37:08,407 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2020-08-22 21:37:08,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:37:08,409 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-22 21:37:08,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:37:08,409 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-08-22 21:37:08,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:37:08,413 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 325 [2020-08-22 21:37:08,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:37:08,415 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 338 [2020-08-22 21:37:08,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:37:08,442 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 21:37:08,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:37:08,443 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 21:37:08,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:37:08,444 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2020-08-22 21:37:08,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:37:08,453 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2020-08-22 21:37:08,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:37:08,455 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-22 21:37:08,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:37:08,456 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-22 21:37:08,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:37:08,457 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2020-08-22 21:37:08,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:37:08,458 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-22 21:37:08,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:37:08,459 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2020-08-22 21:37:08,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:37:08,461 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-22 21:37:08,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:37:08,461 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-08-22 21:37:08,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:37:08,475 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 427 [2020-08-22 21:37:08,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:37:08,477 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 436 [2020-08-22 21:37:08,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:37:08,499 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 21:37:08,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:37:08,502 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 21:37:08,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:37:08,503 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2020-08-22 21:37:08,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:37:08,510 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2020-08-22 21:37:08,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:37:08,513 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-22 21:37:08,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:37:08,514 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-22 21:37:08,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:37:08,514 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2020-08-22 21:37:08,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:37:08,515 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2020-08-22 21:37:08,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:37:08,584 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-22 21:37:08,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:37:08,616 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 506 [2020-08-22 21:37:08,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:37:08,617 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 514 [2020-08-22 21:37:08,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:37:08,618 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 524 [2020-08-22 21:37:08,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:37:08,619 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 21:37:08,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:37:08,620 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 538 [2020-08-22 21:37:08,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:37:08,624 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-22 21:37:08,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:37:08,626 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-22 21:37:08,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:37:08,627 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-22 21:37:08,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:37:08,629 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-08-22 21:37:08,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:37:08,631 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-22 21:37:08,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:37:08,631 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-22 21:37:08,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:37:08,632 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2020-08-22 21:37:08,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:37:08,634 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 601 [2020-08-22 21:37:08,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:37:08,635 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 611 [2020-08-22 21:37:08,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:37:08,790 INFO L134 CoverageAnalysis]: Checked inductivity of 845 backedges. 248 proven. 7 refuted. 0 times theorem prover too weak. 590 trivial. 0 not checked. [2020-08-22 21:37:08,790 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [937895392] [2020-08-22 21:37:08,791 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-08-22 21:37:08,791 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17] total 17 [2020-08-22 21:37:08,791 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [531448097] [2020-08-22 21:37:08,791 INFO L459 AbstractCegarLoop]: Interpolant automaton has 17 states [2020-08-22 21:37:08,791 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-22 21:37:08,792 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2020-08-22 21:37:08,792 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=43, Invalid=229, Unknown=0, NotChecked=0, Total=272 [2020-08-22 21:37:08,792 INFO L87 Difference]: Start difference. First operand 3878 states and 4166 transitions. Second operand 17 states. [2020-08-22 21:37:09,284 WARN L193 SmtUtils]: Spent 200.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-08-22 21:37:10,065 WARN L193 SmtUtils]: Spent 199.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-08-22 21:37:10,822 WARN L193 SmtUtils]: Spent 201.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-08-22 21:37:11,552 WARN L193 SmtUtils]: Spent 206.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-08-22 21:37:11,798 WARN L193 SmtUtils]: Spent 210.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-08-22 21:37:12,290 WARN L193 SmtUtils]: Spent 413.00 ms on a formula simplification. DAG size of input: 194 DAG size of output: 191 [2020-08-22 21:37:12,606 WARN L193 SmtUtils]: Spent 273.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-08-22 21:37:13,067 WARN L193 SmtUtils]: Spent 429.00 ms on a formula simplification. DAG size of input: 197 DAG size of output: 193 [2020-08-22 21:37:13,301 WARN L193 SmtUtils]: Spent 210.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-08-22 21:37:13,745 WARN L193 SmtUtils]: Spent 413.00 ms on a formula simplification. DAG size of input: 194 DAG size of output: 191 [2020-08-22 21:37:17,278 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-22 21:37:17,278 INFO L93 Difference]: Finished difference Result 6809 states and 7469 transitions. [2020-08-22 21:37:17,278 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 42 states. [2020-08-22 21:37:17,279 INFO L78 Accepts]: Start accepts. Automaton has 17 states. Word has length 624 [2020-08-22 21:37:17,279 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-22 21:37:17,290 INFO L225 Difference]: With dead ends: 6809 [2020-08-22 21:37:17,290 INFO L226 Difference]: Without dead ends: 4321 [2020-08-22 21:37:17,298 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 207 GetRequests, 152 SyntacticMatches, 4 SemanticMatches, 51 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 740 ImplicationChecksByTransitivity, 3.7s TimeCoverageRelationStatistics Valid=590, Invalid=2166, Unknown=0, NotChecked=0, Total=2756 [2020-08-22 21:37:17,302 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4321 states. [2020-08-22 21:37:18,718 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4321 to 3705. [2020-08-22 21:37:18,718 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3705 states. [2020-08-22 21:37:18,723 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3705 states to 3705 states and 3951 transitions. [2020-08-22 21:37:18,724 INFO L78 Accepts]: Start accepts. Automaton has 3705 states and 3951 transitions. Word has length 624 [2020-08-22 21:37:18,725 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-22 21:37:18,725 INFO L479 AbstractCegarLoop]: Abstraction has 3705 states and 3951 transitions. [2020-08-22 21:37:18,725 INFO L480 AbstractCegarLoop]: Interpolant automaton has 17 states. [2020-08-22 21:37:18,725 INFO L276 IsEmpty]: Start isEmpty. Operand 3705 states and 3951 transitions. [2020-08-22 21:37:18,731 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 636 [2020-08-22 21:37:18,731 INFO L414 BasicCegarLoop]: Found error trace [2020-08-22 21:37:18,732 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, 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 21:37:18,732 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2020-08-22 21:37:18,732 INFO L427 AbstractCegarLoop]: === Iteration 19 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-22 21:37:18,732 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-22 21:37:18,732 INFO L82 PathProgramCache]: Analyzing trace with hash -814074685, now seen corresponding path program 2 times [2020-08-22 21:37:18,732 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-22 21:37:18,732 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1358564479] [2020-08-22 21:37:18,733 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-22 21:37:18,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:37:19,038 WARN L193 SmtUtils]: Spent 193.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-08-22 21:37:19,039 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 21:37:19,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:37:19,053 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2020-08-22 21:37:19,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:37:19,053 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-08-22 21:37:19,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:37:19,054 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-08-22 21:37:19,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:37:19,054 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-08-22 21:37:19,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:37:19,061 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-08-22 21:37:19,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:37:19,069 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2020-08-22 21:37:19,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:37:19,083 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2020-08-22 21:37:19,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:37:19,089 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 21:37:19,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:37:19,090 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 21:37:19,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:37:19,099 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2020-08-22 21:37:19,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:37:19,103 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-22 21:37:19,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:37:19,105 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-22 21:37:19,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:37:19,106 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-22 21:37:19,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:37:19,107 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-08-22 21:37:19,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:37:19,108 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-22 21:37:19,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:37:19,109 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-22 21:37:19,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:37:19,109 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2020-08-22 21:37:19,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:37:19,112 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2020-08-22 21:37:19,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:37:19,113 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-22 21:37:19,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:37:19,117 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 240 [2020-08-22 21:37:19,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:37:19,119 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 21:37:19,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:37:19,120 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 21:37:19,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:37:19,121 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2020-08-22 21:37:19,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:37:19,121 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2020-08-22 21:37:19,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:37:19,123 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-22 21:37:19,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:37:19,124 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-22 21:37:19,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:37:19,124 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2020-08-22 21:37:19,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:37:19,125 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-22 21:37:19,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:37:19,126 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2020-08-22 21:37:19,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:37:19,128 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-22 21:37:19,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:37:19,129 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-08-22 21:37:19,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:37:19,132 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 325 [2020-08-22 21:37:19,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:37:19,134 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 338 [2020-08-22 21:37:19,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:37:19,162 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 21:37:19,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:37:19,164 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 21:37:19,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:37:19,165 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2020-08-22 21:37:19,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:37:19,174 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2020-08-22 21:37:19,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:37:19,177 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-22 21:37:19,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:37:19,178 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-22 21:37:19,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:37:19,179 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2020-08-22 21:37:19,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:37:19,180 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-22 21:37:19,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:37:19,181 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2020-08-22 21:37:19,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:37:19,183 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-22 21:37:19,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:37:19,183 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-08-22 21:37:19,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:37:19,203 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 427 [2020-08-22 21:37:19,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:37:19,204 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 436 [2020-08-22 21:37:19,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:37:19,217 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 21:37:19,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:37:19,219 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 21:37:19,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:37:19,220 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2020-08-22 21:37:19,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:37:19,230 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2020-08-22 21:37:19,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:37:19,233 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-22 21:37:19,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:37:19,234 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-22 21:37:19,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:37:19,235 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2020-08-22 21:37:19,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:37:19,235 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2020-08-22 21:37:19,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:37:19,237 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-22 21:37:19,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:37:19,237 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-08-22 21:37:19,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:37:19,241 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 516 [2020-08-22 21:37:19,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:37:19,264 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 525 [2020-08-22 21:37:19,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:37:19,266 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 535 [2020-08-22 21:37:19,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:37:19,268 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 21:37:19,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:37:19,269 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 549 [2020-08-22 21:37:19,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:37:19,283 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-22 21:37:19,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:37:19,289 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-22 21:37:19,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:37:19,291 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-22 21:37:19,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:37:19,293 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-08-22 21:37:19,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:37:19,295 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-22 21:37:19,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:37:19,296 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-22 21:37:19,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:37:19,297 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2020-08-22 21:37:19,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:37:19,301 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 612 [2020-08-22 21:37:19,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:37:19,302 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 622 [2020-08-22 21:37:19,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:37:19,468 INFO L134 CoverageAnalysis]: Checked inductivity of 902 backedges. 241 proven. 13 refuted. 0 times theorem prover too weak. 648 trivial. 0 not checked. [2020-08-22 21:37:19,469 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1358564479] [2020-08-22 21:37:19,469 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-08-22 21:37:19,469 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14] total 14 [2020-08-22 21:37:19,469 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1436871021] [2020-08-22 21:37:19,470 INFO L459 AbstractCegarLoop]: Interpolant automaton has 14 states [2020-08-22 21:37:19,470 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-22 21:37:19,470 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2020-08-22 21:37:19,470 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=142, Unknown=0, NotChecked=0, Total=182 [2020-08-22 21:37:19,470 INFO L87 Difference]: Start difference. First operand 3705 states and 3951 transitions. Second operand 14 states. [2020-08-22 21:37:19,941 WARN L193 SmtUtils]: Spent 200.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-08-22 21:37:20,597 WARN L193 SmtUtils]: Spent 200.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-08-22 21:37:21,312 WARN L193 SmtUtils]: Spent 205.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-08-22 21:37:23,641 WARN L193 SmtUtils]: Spent 197.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-08-22 21:37:26,377 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-22 21:37:26,377 INFO L93 Difference]: Finished difference Result 7276 states and 7952 transitions. [2020-08-22 21:37:26,378 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 50 states. [2020-08-22 21:37:26,378 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 635 [2020-08-22 21:37:26,378 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-22 21:37:26,389 INFO L225 Difference]: With dead ends: 7276 [2020-08-22 21:37:26,389 INFO L226 Difference]: Without dead ends: 4961 [2020-08-22 21:37:26,394 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 226 GetRequests, 165 SyntacticMatches, 5 SemanticMatches, 56 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1013 ImplicationChecksByTransitivity, 1.9s TimeCoverageRelationStatistics Valid=648, Invalid=2658, Unknown=0, NotChecked=0, Total=3306 [2020-08-22 21:37:26,398 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4961 states. [2020-08-22 21:37:27,777 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4961 to 4176. [2020-08-22 21:37:27,778 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4176 states. [2020-08-22 21:37:27,783 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4176 states to 4176 states and 4451 transitions. [2020-08-22 21:37:27,784 INFO L78 Accepts]: Start accepts. Automaton has 4176 states and 4451 transitions. Word has length 635 [2020-08-22 21:37:27,784 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-22 21:37:27,784 INFO L479 AbstractCegarLoop]: Abstraction has 4176 states and 4451 transitions. [2020-08-22 21:37:27,784 INFO L480 AbstractCegarLoop]: Interpolant automaton has 14 states. [2020-08-22 21:37:27,785 INFO L276 IsEmpty]: Start isEmpty. Operand 4176 states and 4451 transitions. [2020-08-22 21:37:27,790 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 636 [2020-08-22 21:37:27,790 INFO L414 BasicCegarLoop]: Found error trace [2020-08-22 21:37:27,790 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, 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 21:37:27,791 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2020-08-22 21:37:27,791 INFO L427 AbstractCegarLoop]: === Iteration 20 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-22 21:37:27,791 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-22 21:37:27,791 INFO L82 PathProgramCache]: Analyzing trace with hash -826600787, now seen corresponding path program 1 times [2020-08-22 21:37:27,791 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-22 21:37:27,791 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [186958114] [2020-08-22 21:37:27,791 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-22 21:37:27,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:37:28,178 WARN L193 SmtUtils]: Spent 194.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-08-22 21:37:28,179 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 21:37:28,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:37:28,193 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2020-08-22 21:37:28,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:37:28,194 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-08-22 21:37:28,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:37:28,194 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-08-22 21:37:28,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:37:28,195 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-08-22 21:37:28,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:37:28,205 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-08-22 21:37:28,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:37:28,217 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2020-08-22 21:37:28,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:37:28,237 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2020-08-22 21:37:28,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:37:28,245 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 21:37:28,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:37:28,246 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 21:37:28,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:37:28,259 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2020-08-22 21:37:28,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:37:28,263 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-22 21:37:28,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:37:28,264 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-22 21:37:28,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:37:28,266 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-22 21:37:28,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:37:28,266 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-08-22 21:37:28,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:37:28,268 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-22 21:37:28,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:37:28,269 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-22 21:37:28,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:37:28,270 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2020-08-22 21:37:28,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:37:28,274 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2020-08-22 21:37:28,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:37:28,349 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-22 21:37:28,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:37:28,395 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 240 [2020-08-22 21:37:28,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:37:28,436 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 21:37:28,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:37:28,438 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 21:37:28,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:37:28,439 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2020-08-22 21:37:28,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:37:28,451 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2020-08-22 21:37:28,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:37:28,454 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-22 21:37:28,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:37:28,455 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-22 21:37:28,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:37:28,455 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2020-08-22 21:37:28,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:37:28,456 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-22 21:37:28,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:37:28,457 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2020-08-22 21:37:28,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:37:28,459 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-22 21:37:28,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:37:28,460 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-08-22 21:37:28,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:37:28,482 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 329 [2020-08-22 21:37:28,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:37:28,483 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 338 [2020-08-22 21:37:28,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:37:28,539 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 21:37:28,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:37:28,541 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 21:37:28,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:37:28,541 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2020-08-22 21:37:28,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:37:28,589 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2020-08-22 21:37:28,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:37:28,593 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-22 21:37:28,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:37:28,594 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-22 21:37:28,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:37:28,594 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2020-08-22 21:37:28,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:37:28,596 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2020-08-22 21:37:28,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:37:28,598 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-22 21:37:28,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:37:28,598 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-08-22 21:37:28,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:37:28,602 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 418 [2020-08-22 21:37:28,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:37:28,658 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 427 [2020-08-22 21:37:28,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:37:28,659 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 436 [2020-08-22 21:37:28,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:37:28,676 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 21:37:28,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:37:28,678 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 21:37:28,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:37:28,679 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2020-08-22 21:37:28,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:37:28,682 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-22 21:37:28,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:37:28,683 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-22 21:37:28,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:37:28,684 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-22 21:37:28,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:37:28,685 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-08-22 21:37:28,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:37:28,686 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2020-08-22 21:37:28,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:37:28,688 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-22 21:37:28,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:37:28,688 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-08-22 21:37:28,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:37:28,691 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 521 [2020-08-22 21:37:28,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:37:28,757 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 535 [2020-08-22 21:37:28,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:37:28,760 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 21:37:28,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:37:28,761 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 549 [2020-08-22 21:37:28,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:37:28,764 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-22 21:37:28,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:37:28,766 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-22 21:37:28,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:37:28,767 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-22 21:37:28,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:37:28,768 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-08-22 21:37:28,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:37:28,769 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-22 21:37:28,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:37:28,769 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-22 21:37:28,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:37:28,770 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2020-08-22 21:37:28,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:37:28,773 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 612 [2020-08-22 21:37:28,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:37:28,801 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 622 [2020-08-22 21:37:28,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:37:29,062 INFO L134 CoverageAnalysis]: Checked inductivity of 870 backedges. 159 proven. 131 refuted. 0 times theorem prover too weak. 580 trivial. 0 not checked. [2020-08-22 21:37:29,063 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [186958114] [2020-08-22 21:37:29,063 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-08-22 21:37:29,063 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [25] total 25 [2020-08-22 21:37:29,063 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1209730881] [2020-08-22 21:37:29,064 INFO L459 AbstractCegarLoop]: Interpolant automaton has 25 states [2020-08-22 21:37:29,064 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-22 21:37:29,064 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2020-08-22 21:37:29,064 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=68, Invalid=532, Unknown=0, NotChecked=0, Total=600 [2020-08-22 21:37:29,064 INFO L87 Difference]: Start difference. First operand 4176 states and 4451 transitions. Second operand 25 states. [2020-08-22 21:37:29,823 WARN L193 SmtUtils]: Spent 406.00 ms on a formula simplification. DAG size of input: 192 DAG size of output: 189 [2020-08-22 21:37:30,993 WARN L193 SmtUtils]: Spent 393.00 ms on a formula simplification. DAG size of input: 192 DAG size of output: 189 [2020-08-22 21:37:32,881 WARN L193 SmtUtils]: Spent 433.00 ms on a formula simplification. DAG size of input: 195 DAG size of output: 192 [2020-08-22 21:37:33,400 WARN L193 SmtUtils]: Spent 465.00 ms on a formula simplification. DAG size of input: 198 DAG size of output: 195 [2020-08-22 21:37:33,943 WARN L193 SmtUtils]: Spent 436.00 ms on a formula simplification. DAG size of input: 200 DAG size of output: 191 [2020-08-22 21:37:34,427 WARN L193 SmtUtils]: Spent 433.00 ms on a formula simplification. DAG size of input: 195 DAG size of output: 192 [2020-08-22 21:37:34,969 WARN L193 SmtUtils]: Spent 492.00 ms on a formula simplification. DAG size of input: 205 DAG size of output: 193 [2020-08-22 21:37:35,478 WARN L193 SmtUtils]: Spent 481.00 ms on a formula simplification. DAG size of input: 198 DAG size of output: 195 [2020-08-22 21:37:35,958 WARN L193 SmtUtils]: Spent 434.00 ms on a formula simplification. DAG size of input: 200 DAG size of output: 191 [2020-08-22 21:37:36,437 WARN L193 SmtUtils]: Spent 417.00 ms on a formula simplification. DAG size of input: 194 DAG size of output: 191 [2020-08-22 21:37:36,940 WARN L193 SmtUtils]: Spent 428.00 ms on a formula simplification. DAG size of input: 196 DAG size of output: 193 [2020-08-22 21:37:37,761 WARN L193 SmtUtils]: Spent 782.00 ms on a formula simplification. DAG size of input: 194 DAG size of output: 191 [2020-08-22 21:37:40,256 WARN L193 SmtUtils]: Spent 403.00 ms on a formula simplification. DAG size of input: 192 DAG size of output: 189 [2020-08-22 21:37:41,121 WARN L193 SmtUtils]: Spent 425.00 ms on a formula simplification. DAG size of input: 195 DAG size of output: 192 [2020-08-22 21:37:41,613 WARN L193 SmtUtils]: Spent 454.00 ms on a formula simplification. DAG size of input: 198 DAG size of output: 195 [2020-08-22 21:37:42,097 WARN L193 SmtUtils]: Spent 426.00 ms on a formula simplification. DAG size of input: 200 DAG size of output: 191 [2020-08-22 21:37:42,598 WARN L193 SmtUtils]: Spent 452.00 ms on a formula simplification. DAG size of input: 205 DAG size of output: 193 [2020-08-22 21:37:43,063 WARN L193 SmtUtils]: Spent 426.00 ms on a formula simplification. DAG size of input: 200 DAG size of output: 191 [2020-08-22 21:37:45,897 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-22 21:37:45,897 INFO L93 Difference]: Finished difference Result 6967 states and 7500 transitions. [2020-08-22 21:37:45,897 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 55 states. [2020-08-22 21:37:45,897 INFO L78 Accepts]: Start accepts. Automaton has 25 states. Word has length 635 [2020-08-22 21:37:45,898 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-22 21:37:45,899 INFO L225 Difference]: With dead ends: 6967 [2020-08-22 21:37:45,899 INFO L226 Difference]: Without dead ends: 0 [2020-08-22 21:37:45,912 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 238 GetRequests, 155 SyntacticMatches, 11 SemanticMatches, 72 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1495 ImplicationChecksByTransitivity, 10.2s TimeCoverageRelationStatistics Valid=869, Invalid=4533, Unknown=0, NotChecked=0, Total=5402 [2020-08-22 21:37:45,912 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-08-22 21:37:45,913 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-08-22 21:37:45,913 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-08-22 21:37:45,913 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-08-22 21:37:45,914 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 635 [2020-08-22 21:37:45,914 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-22 21:37:45,914 INFO L479 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-08-22 21:37:45,914 INFO L480 AbstractCegarLoop]: Interpolant automaton has 25 states. [2020-08-22 21:37:45,914 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-08-22 21:37:45,914 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-08-22 21:37:45,915 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2020-08-22 21:37:45,917 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-08-22 21:37:46,513 WARN L193 SmtUtils]: Spent 339.00 ms on a formula simplification. DAG size of input: 259 DAG size of output: 242 [2020-08-22 21:37:46,805 WARN L193 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 214 DAG size of output: 199 [2020-08-22 21:37:47,456 WARN L193 SmtUtils]: Spent 121.00 ms on a formula simplification. DAG size of input: 248 DAG size of output: 230 [2020-08-22 21:37:48,032 WARN L193 SmtUtils]: Spent 225.00 ms on a formula simplification. DAG size of input: 259 DAG size of output: 242 [2020-08-22 21:37:48,877 WARN L193 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 251 DAG size of output: 232 [2020-08-22 21:37:49,159 WARN L193 SmtUtils]: Spent 201.00 ms on a formula simplification. DAG size of input: 253 DAG size of output: 236 [2020-08-22 21:37:51,040 WARN L193 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 219 DAG size of output: 212 [2020-08-22 21:37:51,202 WARN L193 SmtUtils]: Spent 113.00 ms on a formula simplification. DAG size of input: 221 DAG size of output: 214 [2020-08-22 21:37:52,937 WARN L193 SmtUtils]: Spent 1.30 s on a formula simplification. DAG size of input: 713 DAG size of output: 454 [2020-08-22 21:37:54,109 WARN L193 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 284 DAG size of output: 255 [2020-08-22 21:37:55,958 WARN L193 SmtUtils]: Spent 126.00 ms on a formula simplification. DAG size of input: 257 DAG size of output: 235 [2020-08-22 21:37:56,172 WARN L193 SmtUtils]: Spent 138.00 ms on a formula simplification. DAG size of input: 259 DAG size of output: 242 [2020-08-22 21:37:57,044 WARN L193 SmtUtils]: Spent 146.00 ms on a formula simplification. DAG size of input: 252 DAG size of output: 247 [2020-08-22 21:37:58,516 WARN L193 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 248 DAG size of output: 245 [2020-08-22 21:37:59,751 WARN L193 SmtUtils]: Spent 217.00 ms on a formula simplification. DAG size of input: 272 DAG size of output: 260 [2020-08-22 21:38:00,037 WARN L193 SmtUtils]: Spent 173.00 ms on a formula simplification. DAG size of input: 274 DAG size of output: 265 [2020-08-22 21:38:01,137 WARN L193 SmtUtils]: Spent 191.00 ms on a formula simplification. DAG size of input: 258 DAG size of output: 251 [2020-08-22 21:38:02,877 WARN L193 SmtUtils]: Spent 168.00 ms on a formula simplification. DAG size of input: 257 DAG size of output: 248 [2020-08-22 21:38:03,007 WARN L193 SmtUtils]: Spent 108.00 ms on a formula simplification. DAG size of input: 254 DAG size of output: 243 [2020-08-22 21:38:04,235 WARN L193 SmtUtils]: Spent 113.00 ms on a formula simplification. DAG size of input: 269 DAG size of output: 234 [2020-08-22 21:38:05,591 WARN L193 SmtUtils]: Spent 187.00 ms on a formula simplification. DAG size of input: 251 DAG size of output: 232 [2020-08-22 21:38:05,749 WARN L193 SmtUtils]: Spent 152.00 ms on a formula simplification. DAG size of input: 253 DAG size of output: 236 [2020-08-22 21:38:07,547 WARN L193 SmtUtils]: Spent 1.28 s on a formula simplification. DAG size of input: 713 DAG size of output: 454 [2020-08-22 21:38:10,230 WARN L193 SmtUtils]: Spent 1.32 s on a formula simplification. DAG size of input: 713 DAG size of output: 454 [2020-08-22 21:38:13,628 WARN L193 SmtUtils]: Spent 2.92 s on a formula simplification. DAG size of input: 908 DAG size of output: 585 [2020-08-22 21:38:15,703 WARN L193 SmtUtils]: Spent 122.00 ms on a formula simplification. DAG size of input: 268 DAG size of output: 250 [2020-08-22 21:38:15,846 WARN L193 SmtUtils]: Spent 138.00 ms on a formula simplification. DAG size of input: 270 DAG size of output: 259 [2020-08-22 21:38:18,372 WARN L193 SmtUtils]: Spent 122.00 ms on a formula simplification. DAG size of input: 268 DAG size of output: 250 [2020-08-22 21:38:18,553 WARN L193 SmtUtils]: Spent 136.00 ms on a formula simplification. DAG size of input: 270 DAG size of output: 259 [2020-08-22 21:38:21,487 WARN L193 SmtUtils]: Spent 124.00 ms on a formula simplification. DAG size of input: 261 DAG size of output: 237 [2020-08-22 21:38:21,839 WARN L193 SmtUtils]: Spent 132.00 ms on a formula simplification. DAG size of input: 263 DAG size of output: 238 [2020-08-22 21:38:23,329 WARN L193 SmtUtils]: Spent 118.00 ms on a formula simplification. DAG size of input: 256 DAG size of output: 247 [2020-08-22 21:38:23,481 WARN L193 SmtUtils]: Spent 149.00 ms on a formula simplification. DAG size of input: 257 DAG size of output: 244 [2020-08-22 21:38:23,868 WARN L193 SmtUtils]: Spent 138.00 ms on a formula simplification. DAG size of input: 253 DAG size of output: 247 [2020-08-22 21:38:25,005 WARN L193 SmtUtils]: Spent 134.00 ms on a formula simplification. DAG size of input: 272 DAG size of output: 257 [2020-08-22 21:38:25,144 WARN L193 SmtUtils]: Spent 135.00 ms on a formula simplification. DAG size of input: 274 DAG size of output: 262 [2020-08-22 21:38:25,724 WARN L193 SmtUtils]: Spent 138.00 ms on a formula simplification. DAG size of input: 274 DAG size of output: 258 [2020-08-22 21:38:25,869 WARN L193 SmtUtils]: Spent 141.00 ms on a formula simplification. DAG size of input: 276 DAG size of output: 264 [2020-08-22 21:38:26,485 WARN L193 SmtUtils]: Spent 176.00 ms on a formula simplification. DAG size of input: 272 DAG size of output: 257 [2020-08-22 21:38:26,625 WARN L193 SmtUtils]: Spent 136.00 ms on a formula simplification. DAG size of input: 274 DAG size of output: 262 [2020-08-22 21:38:28,783 WARN L193 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 219 DAG size of output: 212 [2020-08-22 21:38:28,989 WARN L193 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 221 DAG size of output: 214 [2020-08-22 21:38:33,626 WARN L193 SmtUtils]: Spent 3.95 s on a formula simplification. DAG size of input: 1073 DAG size of output: 695 [2020-08-22 21:38:35,552 WARN L193 SmtUtils]: Spent 124.00 ms on a formula simplification. DAG size of input: 261 DAG size of output: 237 [2020-08-22 21:38:35,907 WARN L193 SmtUtils]: Spent 133.00 ms on a formula simplification. DAG size of input: 263 DAG size of output: 238 [2020-08-22 21:38:37,390 WARN L193 SmtUtils]: Spent 118.00 ms on a formula simplification. DAG size of input: 256 DAG size of output: 247 [2020-08-22 21:38:37,542 WARN L193 SmtUtils]: Spent 149.00 ms on a formula simplification. DAG size of input: 257 DAG size of output: 244 [2020-08-22 21:38:37,939 WARN L193 SmtUtils]: Spent 136.00 ms on a formula simplification. DAG size of input: 253 DAG size of output: 247 [2020-08-22 21:38:41,187 WARN L193 SmtUtils]: Spent 2.89 s on a formula simplification. DAG size of input: 908 DAG size of output: 585 [2020-08-22 21:38:45,100 WARN L193 SmtUtils]: Spent 143.00 ms on a formula simplification. DAG size of input: 266 DAG size of output: 253 [2020-08-22 21:38:45,372 WARN L193 SmtUtils]: Spent 169.00 ms on a formula simplification. DAG size of input: 268 DAG size of output: 258 [2020-08-22 21:38:46,341 WARN L193 SmtUtils]: Spent 137.00 ms on a formula simplification. DAG size of input: 255 DAG size of output: 245 [2020-08-22 21:38:47,859 WARN L193 SmtUtils]: Spent 117.00 ms on a formula simplification. DAG size of input: 254 DAG size of output: 245 [2020-08-22 21:38:48,030 WARN L193 SmtUtils]: Spent 151.00 ms on a formula simplification. DAG size of input: 251 DAG size of output: 247 [2020-08-22 21:38:57,122 WARN L193 SmtUtils]: Spent 2.90 s on a formula simplification. DAG size of input: 908 DAG size of output: 585 [2020-08-22 21:38:57,491 WARN L193 SmtUtils]: Spent 128.00 ms on a formula simplification. DAG size of input: 257 DAG size of output: 235 [2020-08-22 21:38:57,709 WARN L193 SmtUtils]: Spent 139.00 ms on a formula simplification. DAG size of input: 259 DAG size of output: 242 [2020-08-22 21:38:58,288 WARN L193 SmtUtils]: Spent 144.00 ms on a formula simplification. DAG size of input: 252 DAG size of output: 247 [2020-08-22 21:38:58,489 WARN L193 SmtUtils]: Spent 129.00 ms on a formula simplification. DAG size of input: 257 DAG size of output: 235 [2020-08-22 21:38:58,630 WARN L193 SmtUtils]: Spent 138.00 ms on a formula simplification. DAG size of input: 259 DAG size of output: 242 [2020-08-22 21:38:58,889 WARN L193 SmtUtils]: Spent 128.00 ms on a formula simplification. DAG size of input: 257 DAG size of output: 235 [2020-08-22 21:38:59,065 WARN L193 SmtUtils]: Spent 135.00 ms on a formula simplification. DAG size of input: 259 DAG size of output: 242 [2020-08-22 21:38:59,357 WARN L193 SmtUtils]: Spent 129.00 ms on a formula simplification. DAG size of input: 257 DAG size of output: 235 [2020-08-22 21:39:00,382 WARN L193 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 251 DAG size of output: 248 [2020-08-22 21:39:03,446 WARN L193 SmtUtils]: Spent 2.54 s on a formula simplification. DAG size of input: 817 DAG size of output: 550 [2020-08-22 21:39:03,713 WARN L193 SmtUtils]: Spent 129.00 ms on a formula simplification. DAG size of input: 257 DAG size of output: 235 [2020-08-22 21:39:03,931 WARN L193 SmtUtils]: Spent 129.00 ms on a formula simplification. DAG size of input: 257 DAG size of output: 235 [2020-08-22 21:39:04,261 WARN L193 SmtUtils]: Spent 131.00 ms on a formula simplification. DAG size of input: 257 DAG size of output: 235 [2020-08-22 21:39:05,350 WARN L193 SmtUtils]: Spent 132.00 ms on a formula simplification. DAG size of input: 257 DAG size of output: 235 [2020-08-22 21:39:08,687 WARN L193 SmtUtils]: Spent 111.00 ms on a formula simplification. DAG size of input: 264 DAG size of output: 232 [2020-08-22 21:39:08,798 WARN L193 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 266 DAG size of output: 234 [2020-08-22 21:39:13,864 WARN L193 SmtUtils]: Spent 127.00 ms on a formula simplification. DAG size of input: 257 DAG size of output: 235 [2020-08-22 21:39:14,074 WARN L193 SmtUtils]: Spent 137.00 ms on a formula simplification. DAG size of input: 259 DAG size of output: 242 [2020-08-22 21:39:14,905 WARN L193 SmtUtils]: Spent 147.00 ms on a formula simplification. DAG size of input: 252 DAG size of output: 247 [2020-08-22 21:39:16,218 WARN L193 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 251 DAG size of output: 248 [2020-08-22 21:39:16,337 WARN L193 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 248 DAG size of output: 245 [2020-08-22 21:39:17,316 WARN L193 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 219 DAG size of output: 212 [2020-08-22 21:39:18,009 WARN L193 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 221 DAG size of output: 214 [2020-08-22 21:39:24,433 WARN L193 SmtUtils]: Spent 2.54 s on a formula simplification. DAG size of input: 817 DAG size of output: 550 [2020-08-22 21:39:25,699 WARN L193 SmtUtils]: Spent 1.26 s on a formula simplification. DAG size of input: 713 DAG size of output: 454 [2020-08-22 21:39:33,100 WARN L193 SmtUtils]: Spent 3.48 s on a formula simplification. DAG size of input: 687 DAG size of output: 486 [2020-08-22 21:39:38,515 WARN L193 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 250 DAG size of output: 243 [2020-08-22 21:39:38,904 WARN L193 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 250 DAG size of output: 243 [2020-08-22 21:39:39,089 WARN L193 SmtUtils]: Spent 126.00 ms on a formula simplification. DAG size of input: 252 DAG size of output: 245 [2020-08-22 21:39:39,469 WARN L193 SmtUtils]: Spent 122.00 ms on a formula simplification. DAG size of input: 254 DAG size of output: 248 [2020-08-22 21:39:40,226 WARN L193 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 261 DAG size of output: 232 [2020-08-22 21:39:40,350 WARN L193 SmtUtils]: Spent 119.00 ms on a formula simplification. DAG size of input: 263 DAG size of output: 234 [2020-08-22 21:39:42,137 WARN L193 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 246 DAG size of output: 244 [2020-08-22 21:39:42,246 WARN L193 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 244 DAG size of output: 242 [2020-08-22 21:39:46,057 WARN L193 SmtUtils]: Spent 2.57 s on a formula simplification. DAG size of input: 847 DAG size of output: 559 [2020-08-22 21:39:56,678 WARN L193 SmtUtils]: Spent 2.89 s on a formula simplification. DAG size of input: 908 DAG size of output: 585 [2020-08-22 21:40:00,185 WARN L193 SmtUtils]: Spent 2.90 s on a formula simplification. DAG size of input: 908 DAG size of output: 585 [2020-08-22 21:40:03,131 WARN L193 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 284 DAG size of output: 255 [2020-08-22 21:40:03,237 WARN L193 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 274 DAG size of output: 254 [2020-08-22 21:40:03,889 WARN L193 SmtUtils]: Spent 142.00 ms on a formula simplification. DAG size of input: 272 DAG size of output: 257 [2020-08-22 21:40:04,041 WARN L193 SmtUtils]: Spent 148.00 ms on a formula simplification. DAG size of input: 274 DAG size of output: 262 [2020-08-22 21:40:07,245 WARN L193 SmtUtils]: Spent 137.00 ms on a formula simplification. DAG size of input: 257 DAG size of output: 235 [2020-08-22 21:40:07,488 WARN L193 SmtUtils]: Spent 129.00 ms on a formula simplification. DAG size of input: 257 DAG size of output: 235 [2020-08-22 21:40:07,717 WARN L193 SmtUtils]: Spent 138.00 ms on a formula simplification. DAG size of input: 259 DAG size of output: 242 [2020-08-22 21:40:07,979 WARN L193 SmtUtils]: Spent 128.00 ms on a formula simplification. DAG size of input: 257 DAG size of output: 235 [2020-08-22 21:40:09,470 WARN L193 SmtUtils]: Spent 129.00 ms on a formula simplification. DAG size of input: 257 DAG size of output: 235 [2020-08-22 21:40:09,630 WARN L193 SmtUtils]: Spent 139.00 ms on a formula simplification. DAG size of input: 259 DAG size of output: 242 [2020-08-22 21:40:11,437 WARN L193 SmtUtils]: Spent 1.25 s on a formula simplification. DAG size of input: 713 DAG size of output: 454 [2020-08-22 21:40:14,371 WARN L193 SmtUtils]: Spent 2.93 s on a formula simplification. DAG size of input: 908 DAG size of output: 585 [2020-08-22 21:40:16,875 WARN L193 SmtUtils]: Spent 2.02 s on a formula simplification. DAG size of input: 753 DAG size of output: 539 [2020-08-22 21:40:19,751 WARN L193 SmtUtils]: Spent 2.87 s on a formula simplification. DAG size of input: 908 DAG size of output: 585 [2020-08-22 21:40:21,036 WARN L193 SmtUtils]: Spent 1.28 s on a formula simplification. DAG size of input: 713 DAG size of output: 454 [2020-08-22 21:40:23,536 WARN L193 SmtUtils]: Spent 128.00 ms on a formula simplification. DAG size of input: 257 DAG size of output: 235 [2020-08-22 21:40:23,812 WARN L193 SmtUtils]: Spent 138.00 ms on a formula simplification. DAG size of input: 259 DAG size of output: 242 [2020-08-22 21:40:24,938 WARN L193 SmtUtils]: Spent 147.00 ms on a formula simplification. DAG size of input: 252 DAG size of output: 247 [2020-08-22 21:40:25,236 WARN L193 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 248 DAG size of output: 245 [2020-08-22 21:40:29,861 WARN L193 SmtUtils]: Spent 2.85 s on a formula simplification. DAG size of input: 908 DAG size of output: 585 [2020-08-22 21:40:30,229 WARN L193 SmtUtils]: Spent 115.00 ms on a formula simplification. DAG size of input: 251 DAG size of output: 219 [2020-08-22 21:40:30,349 WARN L193 SmtUtils]: Spent 117.00 ms on a formula simplification. DAG size of input: 251 DAG size of output: 219 [2020-08-22 21:40:30,563 WARN L193 SmtUtils]: Spent 123.00 ms on a formula simplification. DAG size of input: 253 DAG size of output: 223 [2020-08-22 21:40:30,920 WARN L193 SmtUtils]: Spent 117.00 ms on a formula simplification. DAG size of input: 251 DAG size of output: 219 [2020-08-22 21:40:31,284 WARN L193 SmtUtils]: Spent 121.00 ms on a formula simplification. DAG size of input: 253 DAG size of output: 223 [2020-08-22 21:40:31,509 WARN L193 SmtUtils]: Spent 128.00 ms on a formula simplification. DAG size of input: 253 DAG size of output: 223 [2020-08-22 21:40:31,947 WARN L193 SmtUtils]: Spent 125.00 ms on a formula simplification. DAG size of input: 253 DAG size of output: 224 [2020-08-22 21:40:32,099 WARN L193 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 269 DAG size of output: 247 [2020-08-22 21:40:32,311 WARN L193 SmtUtils]: Spent 117.00 ms on a formula simplification. DAG size of input: 251 DAG size of output: 220 [2020-08-22 21:40:32,705 WARN L193 SmtUtils]: Spent 128.00 ms on a formula simplification. DAG size of input: 251 DAG size of output: 220 [2020-08-22 21:40:33,076 WARN L193 SmtUtils]: Spent 124.00 ms on a formula simplification. DAG size of input: 253 DAG size of output: 224 [2020-08-22 21:40:35,932 WARN L193 SmtUtils]: Spent 2.51 s on a formula simplification. DAG size of input: 817 DAG size of output: 550 [2020-08-22 21:40:38,545 WARN L193 SmtUtils]: Spent 2.61 s on a formula simplification. DAG size of input: 817 DAG size of output: 550 [2020-08-22 21:40:40,597 WARN L193 SmtUtils]: Spent 112.00 ms on a formula simplification. DAG size of input: 267 DAG size of output: 232 [2020-08-22 21:40:40,712 WARN L193 SmtUtils]: Spent 111.00 ms on a formula simplification. DAG size of input: 269 DAG size of output: 234 [2020-08-22 21:40:42,885 WARN L193 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 253 DAG size of output: 236 [2020-08-22 21:40:43,485 WARN L193 SmtUtils]: Spent 171.00 ms on a formula simplification. DAG size of input: 272 DAG size of output: 260 [2020-08-22 21:40:43,772 WARN L193 SmtUtils]: Spent 176.00 ms on a formula simplification. DAG size of input: 274 DAG size of output: 265 [2020-08-22 21:40:44,872 WARN L193 SmtUtils]: Spent 192.00 ms on a formula simplification. DAG size of input: 258 DAG size of output: 251 [2020-08-22 21:40:46,475 WARN L193 SmtUtils]: Spent 121.00 ms on a formula simplification. DAG size of input: 257 DAG size of output: 248 [2020-08-22 21:40:46,604 WARN L193 SmtUtils]: Spent 109.00 ms on a formula simplification. DAG size of input: 254 DAG size of output: 243 [2020-08-22 21:40:48,968 WARN L193 SmtUtils]: Spent 1.82 s on a formula simplification. DAG size of input: 359 DAG size of output: 46 [2020-08-22 21:40:49,350 WARN L193 SmtUtils]: Spent 378.00 ms on a formula simplification. DAG size of input: 151 DAG size of output: 27 [2020-08-22 21:40:52,143 WARN L193 SmtUtils]: Spent 2.78 s on a formula simplification. DAG size of input: 274 DAG size of output: 40 [2020-08-22 21:40:54,950 WARN L193 SmtUtils]: Spent 2.77 s on a formula simplification. DAG size of input: 275 DAG size of output: 52 [2020-08-22 21:40:58,302 WARN L193 SmtUtils]: Spent 3.22 s on a formula simplification. DAG size of input: 416 DAG size of output: 80 [2020-08-22 21:41:00,550 WARN L193 SmtUtils]: Spent 2.23 s on a formula simplification. DAG size of input: 385 DAG size of output: 39 [2020-08-22 21:41:02,329 WARN L193 SmtUtils]: Spent 1.77 s on a formula simplification. DAG size of input: 318 DAG size of output: 54 [2020-08-22 21:41:03,280 WARN L193 SmtUtils]: Spent 934.00 ms on a formula simplification. DAG size of input: 238 DAG size of output: 25 [2020-08-22 21:41:05,727 WARN L193 SmtUtils]: Spent 2.43 s on a formula simplification. DAG size of input: 275 DAG size of output: 43 [2020-08-22 21:41:06,213 WARN L193 SmtUtils]: Spent 354.00 ms on a formula simplification. DAG size of input: 274 DAG size of output: 1 [2020-08-22 21:41:08,301 WARN L193 SmtUtils]: Spent 1.96 s on a formula simplification. DAG size of input: 504 DAG size of output: 1 [2020-08-22 21:41:08,864 WARN L193 SmtUtils]: Spent 536.00 ms on a formula simplification. DAG size of input: 168 DAG size of output: 23 [2020-08-22 21:41:15,664 WARN L193 SmtUtils]: Spent 6.74 s on a formula simplification. DAG size of input: 598 DAG size of output: 64 [2020-08-22 21:41:17,503 WARN L193 SmtUtils]: Spent 1.83 s on a formula simplification. DAG size of input: 253 DAG size of output: 36 [2020-08-22 21:41:18,309 WARN L193 SmtUtils]: Spent 790.00 ms on a formula simplification. DAG size of input: 180 DAG size of output: 33 [2020-08-22 21:41:20,442 WARN L193 SmtUtils]: Spent 2.12 s on a formula simplification. DAG size of input: 270 DAG size of output: 38 [2020-08-22 21:41:20,591 WARN L193 SmtUtils]: Spent 141.00 ms on a formula simplification. DAG size of input: 186 DAG size of output: 1 [2020-08-22 21:41:22,355 WARN L193 SmtUtils]: Spent 1.76 s on a formula simplification. DAG size of input: 318 DAG size of output: 54 [2020-08-22 21:41:25,890 WARN L193 SmtUtils]: Spent 3.52 s on a formula simplification. DAG size of input: 282 DAG size of output: 47 [2020-08-22 21:41:27,663 WARN L193 SmtUtils]: Spent 1.77 s on a formula simplification. DAG size of input: 318 DAG size of output: 54 [2020-08-22 21:41:27,810 WARN L193 SmtUtils]: Spent 140.00 ms on a formula simplification. DAG size of input: 186 DAG size of output: 1 [2020-08-22 21:41:32,854 WARN L193 SmtUtils]: Spent 5.04 s on a formula simplification. DAG size of input: 441 DAG size of output: 58 [2020-08-22 21:41:33,288 WARN L193 SmtUtils]: Spent 426.00 ms on a formula simplification. DAG size of input: 259 DAG size of output: 1 [2020-08-22 21:41:35,188 WARN L193 SmtUtils]: Spent 1.89 s on a formula simplification. DAG size of input: 189 DAG size of output: 37 [2020-08-22 21:41:35,563 WARN L193 SmtUtils]: Spent 373.00 ms on a formula simplification. DAG size of input: 151 DAG size of output: 27 [2020-08-22 21:41:37,417 WARN L193 SmtUtils]: Spent 1.81 s on a formula simplification. DAG size of input: 318 DAG size of output: 41 [2020-08-22 21:41:39,303 WARN L193 SmtUtils]: Spent 1.88 s on a formula simplification. DAG size of input: 254 DAG size of output: 48 [2020-08-22 21:41:41,945 WARN L193 SmtUtils]: Spent 2.63 s on a formula simplification. DAG size of input: 280 DAG size of output: 53 [2020-08-22 21:41:43,912 WARN L193 SmtUtils]: Spent 1.96 s on a formula simplification. DAG size of input: 192 DAG size of output: 39 [2020-08-22 21:41:46,027 WARN L193 SmtUtils]: Spent 2.10 s on a formula simplification. DAG size of input: 320 DAG size of output: 43 [2020-08-22 21:41:47,396 WARN L193 SmtUtils]: Spent 1.35 s on a formula simplification. DAG size of input: 281 DAG size of output: 46 [2020-08-22 21:41:47,802 WARN L193 SmtUtils]: Spent 398.00 ms on a formula simplification. DAG size of input: 259 DAG size of output: 1 [2020-08-22 21:41:50,807 WARN L193 SmtUtils]: Spent 2.98 s on a formula simplification. DAG size of input: 352 DAG size of output: 76 [2020-08-22 21:41:50,964 WARN L193 SmtUtils]: Spent 150.00 ms on a formula simplification. DAG size of input: 186 DAG size of output: 1 [2020-08-22 21:41:58,893 WARN L193 SmtUtils]: Spent 7.90 s on a formula simplification. DAG size of input: 493 DAG size of output: 59 [2020-08-22 21:42:00,377 WARN L193 SmtUtils]: Spent 1.48 s on a formula simplification. DAG size of input: 249 DAG size of output: 45 [2020-08-22 21:42:02,977 WARN L193 SmtUtils]: Spent 2.59 s on a formula simplification. DAG size of input: 276 DAG size of output: 41 [2020-08-22 21:42:05,419 WARN L193 SmtUtils]: Spent 2.43 s on a formula simplification. DAG size of input: 278 DAG size of output: 47 [2020-08-22 21:42:08,029 WARN L193 SmtUtils]: Spent 2.60 s on a formula simplification. DAG size of input: 276 DAG size of output: 41 [2020-08-22 21:42:11,646 WARN L193 SmtUtils]: Spent 3.60 s on a formula simplification. DAG size of input: 312 DAG size of output: 57 [2020-08-22 21:42:13,711 WARN L193 SmtUtils]: Spent 1.97 s on a formula simplification. DAG size of input: 192 DAG size of output: 39 [2020-08-22 21:42:15,187 WARN L193 SmtUtils]: Spent 1.47 s on a formula simplification. DAG size of input: 285 DAG size of output: 30 [2020-08-22 21:42:15,572 WARN L193 SmtUtils]: Spent 374.00 ms on a formula simplification. DAG size of input: 151 DAG size of output: 27 [2020-08-22 21:42:17,579 WARN L193 SmtUtils]: Spent 1.99 s on a formula simplification. DAG size of input: 340 DAG size of output: 51 [2020-08-22 21:42:24,146 WARN L193 SmtUtils]: Spent 6.55 s on a formula simplification. DAG size of input: 540 DAG size of output: 61 [2020-08-22 21:42:24,528 WARN L193 SmtUtils]: Spent 366.00 ms on a formula simplification. DAG size of input: 274 DAG size of output: 1 [2020-08-22 21:42:32,554 WARN L193 SmtUtils]: Spent 8.01 s on a formula simplification. DAG size of input: 493 DAG size of output: 59 [2020-08-22 21:42:37,578 WARN L193 SmtUtils]: Spent 5.02 s on a formula simplification. DAG size of input: 441 DAG size of output: 58 [2020-08-22 21:42:41,118 WARN L193 SmtUtils]: Spent 3.53 s on a formula simplification. DAG size of input: 304 DAG size of output: 48 [2020-08-22 21:42:41,536 WARN L193 SmtUtils]: Spent 416.00 ms on a formula simplification. DAG size of input: 146 DAG size of output: 21 [2020-08-22 21:42:45,074 WARN L193 SmtUtils]: Spent 3.52 s on a formula simplification. DAG size of input: 304 DAG size of output: 48 [2020-08-22 21:42:46,977 WARN L193 SmtUtils]: Spent 1.88 s on a formula simplification. DAG size of input: 343 DAG size of output: 34 [2020-08-22 21:42:48,715 WARN L193 SmtUtils]: Spent 1.71 s on a formula simplification. DAG size of input: 248 DAG size of output: 32 [2020-08-22 21:42:49,102 WARN L193 SmtUtils]: Spent 376.00 ms on a formula simplification. DAG size of input: 151 DAG size of output: 27 [2020-08-22 21:42:56,703 WARN L193 SmtUtils]: Spent 7.57 s on a formula simplification. DAG size of input: 603 DAG size of output: 49 [2020-08-22 21:42:56,978 WARN L193 SmtUtils]: Spent 159.00 ms on a formula simplification. DAG size of input: 190 DAG size of output: 1 [2020-08-22 21:42:57,400 WARN L193 SmtUtils]: Spent 420.00 ms on a formula simplification. DAG size of input: 154 DAG size of output: 29 [2020-08-22 21:42:59,835 WARN L193 SmtUtils]: Spent 2.42 s on a formula simplification. DAG size of input: 288 DAG size of output: 63 [2020-08-22 21:43:00,004 WARN L193 SmtUtils]: Spent 160.00 ms on a formula simplification. DAG size of input: 190 DAG size of output: 1 [2020-08-22 21:43:01,436 WARN L193 SmtUtils]: Spent 1.43 s on a formula simplification. DAG size of input: 243 DAG size of output: 1 [2020-08-22 21:43:03,345 WARN L193 SmtUtils]: Spent 1.89 s on a formula simplification. DAG size of input: 343 DAG size of output: 34 [2020-08-22 21:43:04,479 WARN L193 SmtUtils]: Spent 1.12 s on a formula simplification. DAG size of input: 237 DAG size of output: 40 [2020-08-22 21:43:05,584 WARN L193 SmtUtils]: Spent 1.10 s on a formula simplification. DAG size of input: 237 DAG size of output: 40 [2020-08-22 21:43:06,696 WARN L193 SmtUtils]: Spent 1.10 s on a formula simplification. DAG size of input: 239 DAG size of output: 20 [2020-08-22 21:43:07,060 WARN L193 SmtUtils]: Spent 349.00 ms on a formula simplification. DAG size of input: 274 DAG size of output: 1 [2020-08-22 21:43:12,096 WARN L193 SmtUtils]: Spent 5.02 s on a formula simplification. DAG size of input: 441 DAG size of output: 58 [2020-08-22 21:43:12,475 WARN L193 SmtUtils]: Spent 377.00 ms on a formula simplification. DAG size of input: 151 DAG size of output: 27 [2020-08-22 21:43:17,843 WARN L193 SmtUtils]: Spent 5.34 s on a formula simplification. DAG size of input: 517 DAG size of output: 75 [2020-08-22 21:43:22,063 WARN L193 SmtUtils]: Spent 4.21 s on a formula simplification. DAG size of input: 414 DAG size of output: 56 [2020-08-22 21:43:22,603 WARN L193 SmtUtils]: Spent 438.00 ms on a formula simplification. DAG size of input: 118 DAG size of output: 42 [2020-08-22 21:43:25,167 WARN L193 SmtUtils]: Spent 2.53 s on a formula simplification. DAG size of input: 370 DAG size of output: 47 [2020-08-22 21:43:28,093 WARN L193 SmtUtils]: Spent 2.82 s on a formula simplification. DAG size of input: 274 DAG size of output: 40 [2020-08-22 21:43:28,242 WARN L193 SmtUtils]: Spent 142.00 ms on a formula simplification. DAG size of input: 186 DAG size of output: 1 [2020-08-22 21:43:29,381 WARN L193 SmtUtils]: Spent 1.13 s on a formula simplification. DAG size of input: 264 DAG size of output: 38 [2020-08-22 21:43:29,758 WARN L193 SmtUtils]: Spent 375.00 ms on a formula simplification. DAG size of input: 151 DAG size of output: 27 [2020-08-22 21:43:31,952 WARN L193 SmtUtils]: Spent 2.15 s on a formula simplification. DAG size of input: 290 DAG size of output: 54 [2020-08-22 21:43:33,833 WARN L193 SmtUtils]: Spent 1.87 s on a formula simplification. DAG size of input: 250 DAG size of output: 33 [2020-08-22 21:43:36,014 WARN L193 SmtUtils]: Spent 2.17 s on a formula simplification. DAG size of input: 290 DAG size of output: 54 [2020-08-22 21:43:38,300 WARN L193 SmtUtils]: Spent 2.26 s on a formula simplification. DAG size of input: 293 DAG size of output: 56 [2020-08-22 21:43:40,989 WARN L193 SmtUtils]: Spent 2.68 s on a formula simplification. DAG size of input: 280 DAG size of output: 53 [2020-08-22 21:43:43,080 WARN L193 SmtUtils]: Spent 2.08 s on a formula simplification. DAG size of input: 287 DAG size of output: 50 [2020-08-22 21:43:44,984 WARN L193 SmtUtils]: Spent 1.90 s on a formula simplification. DAG size of input: 189 DAG size of output: 37 [2020-08-22 21:43:45,562 WARN L193 SmtUtils]: Spent 574.00 ms on a formula simplification. DAG size of input: 170 DAG size of output: 26 [2020-08-22 21:43:47,582 WARN L193 SmtUtils]: Spent 1.98 s on a formula simplification. DAG size of input: 504 DAG size of output: 1 [2020-08-22 21:43:50,880 WARN L193 SmtUtils]: Spent 3.27 s on a formula simplification. DAG size of input: 459 DAG size of output: 39 [2020-08-22 21:43:51,243 WARN L193 SmtUtils]: Spent 351.00 ms on a formula simplification. DAG size of input: 159 DAG size of output: 18 [2020-08-22 21:43:51,674 WARN L193 SmtUtils]: Spent 406.00 ms on a formula simplification. DAG size of input: 259 DAG size of output: 1 [2020-08-22 21:43:53,690 WARN L193 SmtUtils]: Spent 2.00 s on a formula simplification. DAG size of input: 192 DAG size of output: 39 [2020-08-22 21:43:55,053 WARN L193 SmtUtils]: Spent 1.35 s on a formula simplification. DAG size of input: 241 DAG size of output: 35 [2020-08-22 21:43:56,928 WARN L193 SmtUtils]: Spent 1.87 s on a formula simplification. DAG size of input: 189 DAG size of output: 37 [2020-08-22 21:44:01,171 WARN L193 SmtUtils]: Spent 4.24 s on a formula simplification. DAG size of input: 414 DAG size of output: 56 [2020-08-22 21:44:02,999 WARN L193 SmtUtils]: Spent 1.81 s on a formula simplification. DAG size of input: 318 DAG size of output: 54 [2020-08-22 21:44:03,408 WARN L193 SmtUtils]: Spent 401.00 ms on a formula simplification. DAG size of input: 259 DAG size of output: 1 [2020-08-22 21:44:03,793 WARN L193 SmtUtils]: Spent 354.00 ms on a formula simplification. DAG size of input: 274 DAG size of output: 1 [2020-08-22 21:44:05,790 WARN L193 SmtUtils]: Spent 1.99 s on a formula simplification. DAG size of input: 192 DAG size of output: 39 [2020-08-22 21:44:07,069 WARN L193 SmtUtils]: Spent 1.27 s on a formula simplification. DAG size of input: 250 DAG size of output: 44 [2020-08-22 21:44:09,914 WARN L193 SmtUtils]: Spent 2.81 s on a formula simplification. DAG size of input: 304 DAG size of output: 50 [2020-08-22 21:44:15,767 WARN L193 SmtUtils]: Spent 5.85 s on a formula simplification. DAG size of input: 420 DAG size of output: 44 [2020-08-22 21:44:19,817 WARN L193 SmtUtils]: Spent 4.04 s on a formula simplification. DAG size of input: 319 DAG size of output: 56 [2020-08-22 21:44:21,997 WARN L193 SmtUtils]: Spent 2.15 s on a formula simplification. DAG size of input: 270 DAG size of output: 38 [2020-08-22 21:44:24,013 WARN L193 SmtUtils]: Spent 1.92 s on a formula simplification. DAG size of input: 292 DAG size of output: 46 [2020-08-22 21:44:25,752 WARN L193 SmtUtils]: Spent 1.73 s on a formula simplification. DAG size of input: 247 DAG size of output: 30 [2020-08-22 21:44:27,413 WARN L193 SmtUtils]: Spent 1.65 s on a formula simplification. DAG size of input: 246 DAG size of output: 31 [2020-08-22 21:44:27,793 WARN L193 SmtUtils]: Spent 378.00 ms on a formula simplification. DAG size of input: 151 DAG size of output: 27 [2020-08-22 21:44:28,200 WARN L193 SmtUtils]: Spent 405.00 ms on a formula simplification. DAG size of input: 157 DAG size of output: 31 [2020-08-22 21:44:28,598 WARN L193 SmtUtils]: Spent 396.00 ms on a formula simplification. DAG size of input: 154 DAG size of output: 29 [2020-08-22 21:44:32,490 WARN L193 SmtUtils]: Spent 3.88 s on a formula simplification. DAG size of input: 278 DAG size of output: 45 [2020-08-22 21:44:32,886 WARN L193 SmtUtils]: Spent 395.00 ms on a formula simplification. DAG size of input: 154 DAG size of output: 29 [2020-08-22 21:44:35,031 WARN L193 SmtUtils]: Spent 2.14 s on a formula simplification. DAG size of input: 298 DAG size of output: 39 [2020-08-22 21:44:37,122 WARN L193 SmtUtils]: Spent 2.05 s on a formula simplification. DAG size of input: 266 DAG size of output: 43 [2020-08-22 21:44:41,455 WARN L193 SmtUtils]: Spent 4.31 s on a formula simplification. DAG size of input: 435 DAG size of output: 54 [2020-08-22 21:44:42,298 WARN L193 SmtUtils]: Spent 827.00 ms on a formula simplification. DAG size of input: 180 DAG size of output: 33 [2020-08-22 21:44:44,946 WARN L193 SmtUtils]: Spent 2.62 s on a formula simplification. DAG size of input: 364 DAG size of output: 80 [2020-08-22 21:44:47,895 WARN L193 SmtUtils]: Spent 2.93 s on a formula simplification. DAG size of input: 383 DAG size of output: 89 [2020-08-22 21:44:48,283 WARN L193 SmtUtils]: Spent 377.00 ms on a formula simplification. DAG size of input: 151 DAG size of output: 27 [2020-08-22 21:44:48,685 WARN L193 SmtUtils]: Spent 399.00 ms on a formula simplification. DAG size of input: 166 DAG size of output: 23 [2020-08-22 21:44:52,782 WARN L193 SmtUtils]: Spent 4.05 s on a formula simplification. DAG size of input: 319 DAG size of output: 56 [2020-08-22 21:44:54,489 WARN L193 SmtUtils]: Spent 1.70 s on a formula simplification. DAG size of input: 248 DAG size of output: 32 [2020-08-22 21:44:58,090 WARN L193 SmtUtils]: Spent 3.59 s on a formula simplification. DAG size of input: 282 DAG size of output: 47 [2020-08-22 21:44:58,470 WARN L193 SmtUtils]: Spent 378.00 ms on a formula simplification. DAG size of input: 151 DAG size of output: 27 [2020-08-22 21:44:59,205 WARN L193 SmtUtils]: Spent 620.00 ms on a formula simplification. DAG size of input: 172 DAG size of output: 27 [2020-08-22 21:45:00,892 WARN L193 SmtUtils]: Spent 1.68 s on a formula simplification. DAG size of input: 246 DAG size of output: 28 [2020-08-22 21:45:06,120 WARN L193 SmtUtils]: Spent 5.22 s on a formula simplification. DAG size of input: 441 DAG size of output: 58 [2020-08-22 21:45:06,529 WARN L193 SmtUtils]: Spent 407.00 ms on a formula simplification. DAG size of input: 151 DAG size of output: 27 [2020-08-22 21:45:07,119 WARN L193 SmtUtils]: Spent 585.00 ms on a formula simplification. DAG size of input: 172 DAG size of output: 28 [2020-08-22 21:45:08,856 WARN L193 SmtUtils]: Spent 1.73 s on a formula simplification. DAG size of input: 248 DAG size of output: 30 [2020-08-22 21:45:13,928 WARN L193 SmtUtils]: Spent 5.07 s on a formula simplification. DAG size of input: 441 DAG size of output: 58 [2020-08-22 21:45:15,613 WARN L193 SmtUtils]: Spent 1.68 s on a formula simplification. DAG size of input: 246 DAG size of output: 28 [2020-08-22 21:45:16,163 WARN L193 SmtUtils]: Spent 547.00 ms on a formula simplification. DAG size of input: 168 DAG size of output: 23 [2020-08-22 21:45:18,345 WARN L193 SmtUtils]: Spent 2.17 s on a formula simplification. DAG size of input: 250 DAG size of output: 44 [2020-08-22 21:45:20,233 WARN L193 SmtUtils]: Spent 1.88 s on a formula simplification. DAG size of input: 257 DAG size of output: 51 [2020-08-22 21:45:20,878 WARN L193 SmtUtils]: Spent 552.00 ms on a formula simplification. DAG size of input: 170 DAG size of output: 25 [2020-08-22 21:45:23,037 WARN L193 SmtUtils]: Spent 2.15 s on a formula simplification. DAG size of input: 250 DAG size of output: 44 [2020-08-22 21:45:23,593 WARN L193 SmtUtils]: Spent 552.00 ms on a formula simplification. DAG size of input: 170 DAG size of output: 25 [2020-08-22 21:45:26,088 WARN L193 SmtUtils]: Spent 2.49 s on a formula simplification. DAG size of input: 275 DAG size of output: 43 [2020-08-22 21:45:28,581 WARN L193 SmtUtils]: Spent 2.48 s on a formula simplification. DAG size of input: 276 DAG size of output: 43 [2020-08-22 21:45:30,525 WARN L193 SmtUtils]: Spent 1.94 s on a formula simplification. DAG size of input: 247 DAG size of output: 40 [2020-08-22 21:45:32,690 WARN L193 SmtUtils]: Spent 2.15 s on a formula simplification. DAG size of input: 290 DAG size of output: 54 [2020-08-22 21:45:34,126 WARN L193 SmtUtils]: Spent 1.40 s on a formula simplification. DAG size of input: 243 DAG size of output: 38 [2020-08-22 21:45:36,543 WARN L193 SmtUtils]: Spent 2.40 s on a formula simplification. DAG size of input: 492 DAG size of output: 39 [2020-08-22 21:45:36,928 WARN L193 SmtUtils]: Spent 382.00 ms on a formula simplification. DAG size of input: 151 DAG size of output: 27 [2020-08-22 21:45:37,131 WARN L193 SmtUtils]: Spent 201.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-08-22 21:45:40,080 WARN L193 SmtUtils]: Spent 2.93 s on a formula simplification. DAG size of input: 357 DAG size of output: 85 [2020-08-22 21:45:40,494 WARN L193 SmtUtils]: Spent 407.00 ms on a formula simplification. DAG size of input: 259 DAG size of output: 1 [2020-08-22 21:45:43,755 WARN L193 SmtUtils]: Spent 3.24 s on a formula simplification. DAG size of input: 398 DAG size of output: 49 [2020-08-22 21:45:45,783 WARN L193 SmtUtils]: Spent 2.02 s on a formula simplification. DAG size of input: 192 DAG size of output: 41 [2020-08-22 21:45:47,616 WARN L193 SmtUtils]: Spent 1.83 s on a formula simplification. DAG size of input: 318 DAG size of output: 54 [2020-08-22 21:45:52,750 WARN L193 SmtUtils]: Spent 5.13 s on a formula simplification. DAG size of input: 441 DAG size of output: 58 [2020-08-22 21:45:54,651 WARN L193 SmtUtils]: Spent 1.89 s on a formula simplification. DAG size of input: 189 DAG size of output: 37 [2020-08-22 21:45:59,754 WARN L193 SmtUtils]: Spent 5.10 s on a formula simplification. DAG size of input: 418 DAG size of output: 53 [2020-08-22 21:46:04,882 WARN L193 SmtUtils]: Spent 5.12 s on a formula simplification. DAG size of input: 441 DAG size of output: 58 [2020-08-22 21:46:06,728 WARN L193 SmtUtils]: Spent 1.84 s on a formula simplification. DAG size of input: 318 DAG size of output: 54 [2020-08-22 21:46:09,820 WARN L193 SmtUtils]: Spent 3.08 s on a formula simplification. DAG size of input: 299 DAG size of output: 47 [2020-08-22 21:46:10,243 WARN L193 SmtUtils]: Spent 421.00 ms on a formula simplification. DAG size of input: 146 DAG size of output: 21 [2020-08-22 21:46:11,218 WARN L193 SmtUtils]: Spent 968.00 ms on a formula simplification. DAG size of input: 238 DAG size of output: 25 [2020-08-22 21:46:12,648 WARN L193 SmtUtils]: Spent 1.41 s on a formula simplification. DAG size of input: 281 DAG size of output: 46 [2020-08-22 21:46:17,806 WARN L193 SmtUtils]: Spent 5.14 s on a formula simplification. DAG size of input: 504 DAG size of output: 62 [2020-08-22 21:46:18,433 WARN L193 SmtUtils]: Spent 623.00 ms on a formula simplification. DAG size of input: 172 DAG size of output: 27 [2020-08-22 21:46:21,546 WARN L193 SmtUtils]: Spent 3.09 s on a formula simplification. DAG size of input: 352 DAG size of output: 76 [2020-08-22 21:46:22,531 WARN L193 SmtUtils]: Spent 979.00 ms on a formula simplification. DAG size of input: 238 DAG size of output: 25 [2020-08-22 21:46:24,936 WARN L193 SmtUtils]: Spent 2.38 s on a formula simplification. DAG size of input: 492 DAG size of output: 39 [2020-08-22 21:46:25,336 WARN L193 SmtUtils]: Spent 398.00 ms on a formula simplification. DAG size of input: 154 DAG size of output: 29 [2020-08-22 21:46:30,464 WARN L193 SmtUtils]: Spent 5.12 s on a formula simplification. DAG size of input: 441 DAG size of output: 58 [2020-08-22 21:46:30,869 WARN L193 SmtUtils]: Spent 402.00 ms on a formula simplification. DAG size of input: 154 DAG size of output: 29 [2020-08-22 21:46:34,952 WARN L193 SmtUtils]: Spent 4.06 s on a formula simplification. DAG size of input: 474 DAG size of output: 40 [2020-08-22 21:46:36,786 WARN L193 SmtUtils]: Spent 1.81 s on a formula simplification. DAG size of input: 328 DAG size of output: 65 [2020-08-22 21:46:37,170 WARN L193 SmtUtils]: Spent 373.00 ms on a formula simplification. DAG size of input: 140 DAG size of output: 18 [2020-08-22 21:46:41,488 WARN L193 SmtUtils]: Spent 4.30 s on a formula simplification. DAG size of input: 414 DAG size of output: 56 [2020-08-22 21:46:45,784 WARN L193 SmtUtils]: Spent 4.29 s on a formula simplification. DAG size of input: 414 DAG size of output: 56 [2020-08-22 21:46:46,192 WARN L193 SmtUtils]: Spent 396.00 ms on a formula simplification. DAG size of input: 142 DAG size of output: 19 [2020-08-22 21:46:46,683 WARN L193 SmtUtils]: Spent 358.00 ms on a formula simplification. DAG size of input: 274 DAG size of output: 1 [2020-08-22 21:46:47,707 WARN L193 SmtUtils]: Spent 1.01 s on a formula simplification. DAG size of input: 252 DAG size of output: 47