/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_product48.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-267fbe0 [2020-07-17 16:47:41,587 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-07-17 16:47:41,590 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-07-17 16:47:41,602 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-07-17 16:47:41,602 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-07-17 16:47:41,603 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-07-17 16:47:41,605 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-07-17 16:47:41,607 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-07-17 16:47:41,608 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-07-17 16:47:41,609 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-07-17 16:47:41,610 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-07-17 16:47:41,611 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-07-17 16:47:41,612 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-07-17 16:47:41,613 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-07-17 16:47:41,614 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-07-17 16:47:41,615 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-07-17 16:47:41,616 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-07-17 16:47:41,617 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-07-17 16:47:41,619 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-07-17 16:47:41,621 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-07-17 16:47:41,623 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-07-17 16:47:41,624 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-07-17 16:47:41,625 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-07-17 16:47:41,626 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-07-17 16:47:41,629 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-07-17 16:47:41,629 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-07-17 16:47:41,629 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-07-17 16:47:41,630 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-07-17 16:47:41,631 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-07-17 16:47:41,632 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-07-17 16:47:41,632 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-07-17 16:47:41,633 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-07-17 16:47:41,634 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-07-17 16:47:41,635 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-07-17 16:47:41,636 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-07-17 16:47:41,636 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-07-17 16:47:41,637 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-07-17 16:47:41,637 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-07-17 16:47:41,637 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-07-17 16:47:41,638 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-07-17 16:47:41,639 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-07-17 16:47:41,640 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/acceleratedInterpolation/acceleratedInterpolationFastUPR_32.epf [2020-07-17 16:47:41,649 INFO L113 SettingsManager]: Loading preferences was successful [2020-07-17 16:47:41,649 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-07-17 16:47:41,651 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-07-17 16:47:41,651 INFO L138 SettingsManager]: * sizeof long=4 [2020-07-17 16:47:41,651 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-07-17 16:47:41,651 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-07-17 16:47:41,652 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-07-17 16:47:41,652 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-07-17 16:47:41,652 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-07-17 16:47:41,652 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-07-17 16:47:41,652 INFO L138 SettingsManager]: * sizeof long double=12 [2020-07-17 16:47:41,653 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-07-17 16:47:41,653 INFO L138 SettingsManager]: * Use constant arrays=true [2020-07-17 16:47:41,653 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-07-17 16:47:41,653 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-07-17 16:47:41,653 INFO L138 SettingsManager]: * Size of a code block=SingleStatement [2020-07-17 16:47:41,654 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-07-17 16:47:41,654 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-07-17 16:47:41,654 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-07-17 16:47:41,654 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-07-17 16:47:41,655 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=AcceleratedInterpolation [2020-07-17 16:47:41,655 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-07-17 16:47:41,655 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 [2020-07-17 16:47:41,925 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2020-07-17 16:47:41,938 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-07-17 16:47:41,941 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-07-17 16:47:41,943 INFO L271 PluginConnector]: Initializing CDTParser... [2020-07-17 16:47:41,943 INFO L275 PluginConnector]: CDTParser initialized [2020-07-17 16:47:41,944 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec5_product48.cil.c [2020-07-17 16:47:42,005 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d10dab8b3/8523cd6db4e2414bbdb54aacf4b6d303/FLAGd01baef7d [2020-07-17 16:47:42,483 INFO L306 CDTParser]: Found 1 translation units. [2020-07-17 16:47:42,483 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/minepump_spec5_product48.cil.c [2020-07-17 16:47:42,496 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d10dab8b3/8523cd6db4e2414bbdb54aacf4b6d303/FLAGd01baef7d [2020-07-17 16:47:42,841 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d10dab8b3/8523cd6db4e2414bbdb54aacf4b6d303 [2020-07-17 16:47:42,850 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-07-17 16:47:42,854 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-07-17 16:47:42,855 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-07-17 16:47:42,855 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-07-17 16:47:42,858 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-07-17 16:47:42,859 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.07 04:47:42" (1/1) ... [2020-07-17 16:47:42,862 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2c984257 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.07 04:47:42, skipping insertion in model container [2020-07-17 16:47:42,863 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.07 04:47:42" (1/1) ... [2020-07-17 16:47:42,870 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-07-17 16:47:42,911 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-07-17 16:47:43,228 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-17 16:47:43,334 INFO L203 MainTranslator]: Completed pre-run [2020-07-17 16:47:43,486 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-17 16:47:43,529 INFO L208 MainTranslator]: Completed translation [2020-07-17 16:47:43,530 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.07 04:47:43 WrapperNode [2020-07-17 16:47:43,530 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-07-17 16:47:43,531 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-07-17 16:47:43,531 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-07-17 16:47:43,531 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-07-17 16:47:43,542 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.07 04:47:43" (1/1) ... [2020-07-17 16:47:43,542 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.07 04:47:43" (1/1) ... [2020-07-17 16:47:43,569 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.07 04:47:43" (1/1) ... [2020-07-17 16:47:43,569 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.07 04:47:43" (1/1) ... [2020-07-17 16:47:43,598 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.07 04:47:43" (1/1) ... [2020-07-17 16:47:43,608 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.07 04:47:43" (1/1) ... [2020-07-17 16:47:43,614 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.07 04:47:43" (1/1) ... [2020-07-17 16:47:43,621 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-07-17 16:47:43,622 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-07-17 16:47:43,622 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-07-17 16:47:43,622 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-07-17 16:47:43,623 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.07 04:47:43" (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 [2020-07-17 16:47:43,693 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-07-17 16:47:43,693 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-07-17 16:47:43,694 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2020-07-17 16:47:43,694 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2020-07-17 16:47:43,694 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2020-07-17 16:47:43,694 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2020-07-17 16:47:43,694 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2020-07-17 16:47:43,694 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2020-07-17 16:47:43,695 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2020-07-17 16:47:43,695 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2020-07-17 16:47:43,695 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2020-07-17 16:47:43,695 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2020-07-17 16:47:43,695 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2020-07-17 16:47:43,695 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__methaneQuery [2020-07-17 16:47:43,696 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2020-07-17 16:47:43,696 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump__wrappee__highWaterSensor [2020-07-17 16:47:43,696 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2020-07-17 16:47:43,696 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2020-07-17 16:47:43,696 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2020-07-17 16:47:43,697 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2020-07-17 16:47:43,697 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2020-07-17 16:47:43,697 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterLevel [2020-07-17 16:47:43,697 INFO L138 BoogieDeclarations]: Found implementation of procedure stopSystem [2020-07-17 16:47:43,697 INFO L138 BoogieDeclarations]: Found implementation of procedure startSystem [2020-07-17 16:47:43,697 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2020-07-17 16:47:43,698 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2020-07-17 16:47:43,698 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2020-07-17 16:47:43,698 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2020-07-17 16:47:43,698 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2020-07-17 16:47:43,698 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2020-07-17 16:47:43,698 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterSensorDry [2020-07-17 16:47:43,699 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2020-07-17 16:47:43,699 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2020-07-17 16:47:43,699 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2020-07-17 16:47:43,699 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2020-07-17 16:47:43,699 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-07-17 16:47:43,699 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification5_spec__1 [2020-07-17 16:47:43,700 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification5_spec__2 [2020-07-17 16:47:43,700 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification5_spec__3 [2020-07-17 16:47:43,700 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2020-07-17 16:47:43,700 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2020-07-17 16:47:43,700 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2020-07-17 16:47:43,700 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2020-07-17 16:47:43,701 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-07-17 16:47:43,701 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-07-17 16:47:43,701 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2020-07-17 16:47:43,701 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-07-17 16:47:43,701 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-07-17 16:47:43,701 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-07-17 16:47:43,701 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2020-07-17 16:47:43,702 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-07-17 16:47:43,702 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-07-17 16:47:43,702 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-07-17 16:47:43,702 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-07-17 16:47:43,702 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2020-07-17 16:47:43,702 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-07-17 16:47:43,702 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2020-07-17 16:47:43,703 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2020-07-17 16:47:43,703 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-07-17 16:47:43,703 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2020-07-17 16:47:43,703 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2020-07-17 16:47:43,703 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-07-17 16:47:43,703 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2020-07-17 16:47:43,703 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2020-07-17 16:47:43,704 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2020-07-17 16:47:43,704 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2020-07-17 16:47:43,704 INFO L130 BoogieDeclarations]: Found specification of procedure startSystem [2020-07-17 16:47:43,704 INFO L130 BoogieDeclarations]: Found specification of procedure stopSystem [2020-07-17 16:47:43,704 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2020-07-17 16:47:43,704 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2020-07-17 16:47:43,704 INFO L130 BoogieDeclarations]: Found specification of procedure test [2020-07-17 16:47:43,705 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2020-07-17 16:47:43,705 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2020-07-17 16:47:43,705 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2020-07-17 16:47:43,705 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterSensorDry [2020-07-17 16:47:43,705 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2020-07-17 16:47:43,705 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2020-07-17 16:47:43,706 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2020-07-17 16:47:43,706 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2020-07-17 16:47:43,706 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification5_spec__2 [2020-07-17 16:47:43,706 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification5_spec__3 [2020-07-17 16:47:43,706 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2020-07-17 16:47:43,706 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2020-07-17 16:47:43,706 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterLevel [2020-07-17 16:47:43,707 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__methaneQuery [2020-07-17 16:47:43,707 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2020-07-17 16:47:43,707 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump__wrappee__highWaterSensor [2020-07-17 16:47:43,707 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2020-07-17 16:47:43,707 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2020-07-17 16:47:43,707 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2020-07-17 16:47:43,708 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification5_spec__1 [2020-07-17 16:47:43,708 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2020-07-17 16:47:43,708 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2020-07-17 16:47:43,708 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2020-07-17 16:47:43,708 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2020-07-17 16:47:43,708 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-07-17 16:47:43,709 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2020-07-17 16:47:43,709 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-07-17 16:47:43,709 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-07-17 16:47:43,709 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-07-17 16:47:44,832 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-07-17 16:47:44,833 INFO L295 CfgBuilder]: Removed 5 assume(true) statements. [2020-07-17 16:47:44,847 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.07 04:47:44 BoogieIcfgContainer [2020-07-17 16:47:44,848 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-07-17 16:47:44,850 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-07-17 16:47:44,850 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-07-17 16:47:44,853 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-07-17 16:47:44,853 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 17.07 04:47:42" (1/3) ... [2020-07-17 16:47:44,854 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@67cf3074 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.07 04:47:44, skipping insertion in model container [2020-07-17 16:47:44,854 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.07 04:47:43" (2/3) ... [2020-07-17 16:47:44,855 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@67cf3074 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.07 04:47:44, skipping insertion in model container [2020-07-17 16:47:44,856 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.07 04:47:44" (3/3) ... [2020-07-17 16:47:44,858 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec5_product48.cil.c [2020-07-17 16:47:44,868 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-07-17 16:47:44,880 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-07-17 16:47:44,893 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-07-17 16:47:44,912 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-07-17 16:47:44,912 INFO L376 AbstractCegarLoop]: Hoare is true [2020-07-17 16:47:44,913 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-07-17 16:47:44,913 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-07-17 16:47:44,913 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-07-17 16:47:44,913 INFO L380 AbstractCegarLoop]: Difference is false [2020-07-17 16:47:44,913 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-07-17 16:47:44,914 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-07-17 16:47:44,934 INFO L276 IsEmpty]: Start isEmpty. Operand 338 states. [2020-07-17 16:47:44,955 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 161 [2020-07-17 16:47:44,956 INFO L414 BasicCegarLoop]: Found error trace [2020-07-17 16:47:44,957 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] [2020-07-17 16:47:44,958 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-17 16:47:44,964 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-17 16:47:44,965 INFO L82 PathProgramCache]: Analyzing trace with hash 242208481, now seen corresponding path program 1 times [2020-07-17 16:47:44,974 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-17 16:47:44,974 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1061156863] [2020-07-17 16:47:44,975 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-17 16:47:45,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:47:45,686 WARN L193 SmtUtils]: Spent 293.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-07-17 16:47:45,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:47:45,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:47:45,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:47:45,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:47:45,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:47:45,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:47:45,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:47:45,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:47:45,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:47:45,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:47:45,878 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2020-07-17 16:47:45,879 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1061156863] [2020-07-17 16:47:45,881 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-17 16:47:45,881 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-07-17 16:47:45,889 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [486314504] [2020-07-17 16:47:45,897 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-07-17 16:47:45,897 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-17 16:47:45,911 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-07-17 16:47:45,912 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-07-17 16:47:45,914 INFO L87 Difference]: Start difference. First operand 338 states. Second operand 4 states. [2020-07-17 16:47:47,329 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-17 16:47:47,329 INFO L93 Difference]: Finished difference Result 540 states and 636 transitions. [2020-07-17 16:47:47,330 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-07-17 16:47:47,332 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 160 [2020-07-17 16:47:47,333 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-17 16:47:47,349 INFO L225 Difference]: With dead ends: 540 [2020-07-17 16:47:47,350 INFO L226 Difference]: Without dead ends: 338 [2020-07-17 16:47:47,356 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 [2020-07-17 16:47:47,375 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 338 states. [2020-07-17 16:47:47,519 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 338 to 287. [2020-07-17 16:47:47,521 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 287 states. [2020-07-17 16:47:47,526 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 287 states to 287 states and 314 transitions. [2020-07-17 16:47:47,528 INFO L78 Accepts]: Start accepts. Automaton has 287 states and 314 transitions. Word has length 160 [2020-07-17 16:47:47,531 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-17 16:47:47,531 INFO L479 AbstractCegarLoop]: Abstraction has 287 states and 314 transitions. [2020-07-17 16:47:47,531 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-07-17 16:47:47,532 INFO L276 IsEmpty]: Start isEmpty. Operand 287 states and 314 transitions. [2020-07-17 16:47:47,546 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 162 [2020-07-17 16:47:47,547 INFO L414 BasicCegarLoop]: Found error trace [2020-07-17 16:47:47,547 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] [2020-07-17 16:47:47,548 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-07-17 16:47:47,548 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-17 16:47:47,548 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-17 16:47:47,549 INFO L82 PathProgramCache]: Analyzing trace with hash 424618484, now seen corresponding path program 1 times [2020-07-17 16:47:47,549 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-17 16:47:47,549 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1307096578] [2020-07-17 16:47:47,549 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-17 16:47:47,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:47:47,931 WARN L193 SmtUtils]: Spent 249.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-07-17 16:47:47,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:47:47,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:47:47,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:47:47,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:47:47,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:47:47,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:47:47,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:47:47,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:47:47,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:47:47,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:47:48,013 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2020-07-17 16:47:48,014 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1307096578] [2020-07-17 16:47:48,014 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-17 16:47:48,014 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-07-17 16:47:48,015 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1912728783] [2020-07-17 16:47:48,016 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-07-17 16:47:48,017 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-17 16:47:48,017 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-07-17 16:47:48,017 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-07-17 16:47:48,017 INFO L87 Difference]: Start difference. First operand 287 states and 314 transitions. Second operand 5 states. [2020-07-17 16:47:48,669 WARN L193 SmtUtils]: Spent 217.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-07-17 16:47:49,799 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-17 16:47:49,800 INFO L93 Difference]: Finished difference Result 459 states and 520 transitions. [2020-07-17 16:47:49,800 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-07-17 16:47:49,800 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 161 [2020-07-17 16:47:49,801 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-17 16:47:49,805 INFO L225 Difference]: With dead ends: 459 [2020-07-17 16:47:49,805 INFO L226 Difference]: Without dead ends: 327 [2020-07-17 16:47:49,806 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 [2020-07-17 16:47:49,807 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 327 states. [2020-07-17 16:47:49,883 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 327 to 277. [2020-07-17 16:47:49,883 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 277 states. [2020-07-17 16:47:49,885 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 277 states to 277 states and 301 transitions. [2020-07-17 16:47:49,886 INFO L78 Accepts]: Start accepts. Automaton has 277 states and 301 transitions. Word has length 161 [2020-07-17 16:47:49,886 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-17 16:47:49,886 INFO L479 AbstractCegarLoop]: Abstraction has 277 states and 301 transitions. [2020-07-17 16:47:49,887 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-07-17 16:47:49,887 INFO L276 IsEmpty]: Start isEmpty. Operand 277 states and 301 transitions. [2020-07-17 16:47:49,889 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 175 [2020-07-17 16:47:49,889 INFO L414 BasicCegarLoop]: Found error trace [2020-07-17 16:47:49,890 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-17 16:47:49,890 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-07-17 16:47:49,890 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-17 16:47:49,890 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-17 16:47:49,891 INFO L82 PathProgramCache]: Analyzing trace with hash -1558569605, now seen corresponding path program 1 times [2020-07-17 16:47:49,891 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-17 16:47:49,891 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1433325719] [2020-07-17 16:47:49,891 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-17 16:47:49,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:47:50,210 WARN L193 SmtUtils]: Spent 196.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-07-17 16:47:50,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:47:50,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:47:50,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:47:50,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:47:50,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:47:50,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:47:50,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:47:50,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:47:50,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:47:50,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:47:50,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:47:50,441 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2020-07-17 16:47:50,441 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1433325719] [2020-07-17 16:47:50,442 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-17 16:47:50,442 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2020-07-17 16:47:50,443 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1572511707] [2020-07-17 16:47:50,443 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-07-17 16:47:50,444 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-17 16:47:50,444 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-07-17 16:47:50,444 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2020-07-17 16:47:50,445 INFO L87 Difference]: Start difference. First operand 277 states and 301 transitions. Second operand 11 states. [2020-07-17 16:47:51,140 WARN L193 SmtUtils]: Spent 296.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-07-17 16:47:51,598 WARN L193 SmtUtils]: Spent 319.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-07-17 16:47:51,876 WARN L193 SmtUtils]: Spent 250.00 ms on a formula simplification that was a NOOP. DAG size: 195 [2020-07-17 16:47:52,162 WARN L193 SmtUtils]: Spent 249.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-07-17 16:47:52,395 WARN L193 SmtUtils]: Spent 208.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-07-17 16:47:52,622 WARN L193 SmtUtils]: Spent 205.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-07-17 16:47:53,790 WARN L193 SmtUtils]: Spent 189.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-07-17 16:47:56,217 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-17 16:47:56,217 INFO L93 Difference]: Finished difference Result 772 states and 900 transitions. [2020-07-17 16:47:56,218 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2020-07-17 16:47:56,219 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 174 [2020-07-17 16:47:56,219 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-17 16:47:56,224 INFO L225 Difference]: With dead ends: 772 [2020-07-17 16:47:56,224 INFO L226 Difference]: Without dead ends: 610 [2020-07-17 16:47:56,226 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 51 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 81 ImplicationChecksByTransitivity, 2.2s TimeCoverageRelationStatistics Valid=168, Invalid=384, Unknown=0, NotChecked=0, Total=552 [2020-07-17 16:47:56,227 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 610 states. [2020-07-17 16:47:56,423 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 610 to 507. [2020-07-17 16:47:56,423 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 507 states. [2020-07-17 16:47:56,426 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 507 states to 507 states and 571 transitions. [2020-07-17 16:47:56,427 INFO L78 Accepts]: Start accepts. Automaton has 507 states and 571 transitions. Word has length 174 [2020-07-17 16:47:56,427 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-17 16:47:56,428 INFO L479 AbstractCegarLoop]: Abstraction has 507 states and 571 transitions. [2020-07-17 16:47:56,428 INFO L480 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-07-17 16:47:56,428 INFO L276 IsEmpty]: Start isEmpty. Operand 507 states and 571 transitions. [2020-07-17 16:47:56,431 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 180 [2020-07-17 16:47:56,431 INFO L414 BasicCegarLoop]: Found error trace [2020-07-17 16:47:56,431 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] [2020-07-17 16:47:56,431 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-07-17 16:47:56,432 INFO L427 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-17 16:47:56,432 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-17 16:47:56,432 INFO L82 PathProgramCache]: Analyzing trace with hash 1499637602, now seen corresponding path program 1 times [2020-07-17 16:47:56,432 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-17 16:47:56,433 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [597926534] [2020-07-17 16:47:56,433 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-17 16:47:56,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:47:56,731 WARN L193 SmtUtils]: Spent 195.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-07-17 16:47:56,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:47:56,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:47:56,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:47:56,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:47:56,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:47:56,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:47:56,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:47:56,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:47:56,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:47:56,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:47:56,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:47:56,881 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2020-07-17 16:47:56,882 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [597926534] [2020-07-17 16:47:56,882 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-17 16:47:56,883 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-07-17 16:47:56,883 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [422720124] [2020-07-17 16:47:56,884 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-07-17 16:47:56,884 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-17 16:47:56,884 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-07-17 16:47:56,885 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2020-07-17 16:47:56,885 INFO L87 Difference]: Start difference. First operand 507 states and 571 transitions. Second operand 10 states. [2020-07-17 16:47:57,563 WARN L193 SmtUtils]: Spent 291.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-07-17 16:47:58,448 WARN L193 SmtUtils]: Spent 206.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-07-17 16:47:58,682 WARN L193 SmtUtils]: Spent 215.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-07-17 16:47:59,820 WARN L193 SmtUtils]: Spent 232.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-07-17 16:48:00,070 WARN L193 SmtUtils]: Spent 216.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-07-17 16:48:00,309 WARN L193 SmtUtils]: Spent 214.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-07-17 16:48:00,637 WARN L193 SmtUtils]: Spent 201.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-07-17 16:48:00,865 WARN L193 SmtUtils]: Spent 207.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-07-17 16:48:01,136 WARN L193 SmtUtils]: Spent 197.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-07-17 16:48:02,012 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-17 16:48:02,013 INFO L93 Difference]: Finished difference Result 1194 states and 1427 transitions. [2020-07-17 16:48:02,013 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2020-07-17 16:48:02,013 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 179 [2020-07-17 16:48:02,014 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-17 16:48:02,023 INFO L225 Difference]: With dead ends: 1194 [2020-07-17 16:48:02,023 INFO L226 Difference]: Without dead ends: 802 [2020-07-17 16:48:02,026 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 57 ImplicationChecksByTransitivity, 2.4s TimeCoverageRelationStatistics Valid=143, Invalid=363, Unknown=0, NotChecked=0, Total=506 [2020-07-17 16:48:02,027 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 802 states. [2020-07-17 16:48:02,290 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 802 to 709. [2020-07-17 16:48:02,290 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 709 states. [2020-07-17 16:48:02,294 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 709 states to 709 states and 795 transitions. [2020-07-17 16:48:02,295 INFO L78 Accepts]: Start accepts. Automaton has 709 states and 795 transitions. Word has length 179 [2020-07-17 16:48:02,295 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-17 16:48:02,296 INFO L479 AbstractCegarLoop]: Abstraction has 709 states and 795 transitions. [2020-07-17 16:48:02,296 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-07-17 16:48:02,296 INFO L276 IsEmpty]: Start isEmpty. Operand 709 states and 795 transitions. [2020-07-17 16:48:02,300 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 235 [2020-07-17 16:48:02,300 INFO L414 BasicCegarLoop]: Found error trace [2020-07-17 16:48:02,300 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-17 16:48:02,301 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-07-17 16:48:02,301 INFO L427 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-17 16:48:02,301 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-17 16:48:02,301 INFO L82 PathProgramCache]: Analyzing trace with hash 1825094604, now seen corresponding path program 1 times [2020-07-17 16:48:02,301 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-17 16:48:02,302 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [388673899] [2020-07-17 16:48:02,302 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-17 16:48:02,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:48:02,545 WARN L193 SmtUtils]: Spent 171.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-07-17 16:48:02,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:48:02,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:48:02,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:48:02,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:48:02,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:48:02,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:48:02,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:48:02,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:48:02,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:48:02,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:48:02,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:48:02,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:48:02,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:48:02,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:48:02,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:48:02,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:48:02,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:48:02,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:48:02,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:48:02,778 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2020-07-17 16:48:02,779 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [388673899] [2020-07-17 16:48:02,779 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-17 16:48:02,779 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2020-07-17 16:48:02,779 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [72485415] [2020-07-17 16:48:02,780 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-07-17 16:48:02,781 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-17 16:48:02,781 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-07-17 16:48:02,781 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2020-07-17 16:48:02,781 INFO L87 Difference]: Start difference. First operand 709 states and 795 transitions. Second operand 11 states. [2020-07-17 16:48:04,407 WARN L193 SmtUtils]: Spent 216.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-07-17 16:48:04,661 WARN L193 SmtUtils]: Spent 224.00 ms on a formula simplification that was a NOOP. DAG size: 194 [2020-07-17 16:48:04,937 WARN L193 SmtUtils]: Spent 249.00 ms on a formula simplification that was a NOOP. DAG size: 197 [2020-07-17 16:48:05,204 WARN L193 SmtUtils]: Spent 218.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-07-17 16:48:05,506 WARN L193 SmtUtils]: Spent 235.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-07-17 16:48:05,741 WARN L193 SmtUtils]: Spent 203.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-07-17 16:48:07,066 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-17 16:48:07,067 INFO L93 Difference]: Finished difference Result 1515 states and 1828 transitions. [2020-07-17 16:48:07,068 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2020-07-17 16:48:07,068 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 234 [2020-07-17 16:48:07,069 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-17 16:48:07,074 INFO L225 Difference]: With dead ends: 1515 [2020-07-17 16:48:07,075 INFO L226 Difference]: Without dead ends: 921 [2020-07-17 16:48:07,077 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 61 GetRequests, 42 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 32 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=121, Invalid=299, Unknown=0, NotChecked=0, Total=420 [2020-07-17 16:48:07,079 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 921 states. [2020-07-17 16:48:07,331 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 921 to 728. [2020-07-17 16:48:07,331 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 728 states. [2020-07-17 16:48:07,336 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 728 states to 728 states and 815 transitions. [2020-07-17 16:48:07,337 INFO L78 Accepts]: Start accepts. Automaton has 728 states and 815 transitions. Word has length 234 [2020-07-17 16:48:07,337 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-17 16:48:07,338 INFO L479 AbstractCegarLoop]: Abstraction has 728 states and 815 transitions. [2020-07-17 16:48:07,338 INFO L480 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-07-17 16:48:07,338 INFO L276 IsEmpty]: Start isEmpty. Operand 728 states and 815 transitions. [2020-07-17 16:48:07,344 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 235 [2020-07-17 16:48:07,344 INFO L414 BasicCegarLoop]: Found error trace [2020-07-17 16:48:07,344 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-17 16:48:07,345 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-07-17 16:48:07,345 INFO L427 AbstractCegarLoop]: === Iteration 6 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-17 16:48:07,345 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-17 16:48:07,345 INFO L82 PathProgramCache]: Analyzing trace with hash -1802126292, now seen corresponding path program 1 times [2020-07-17 16:48:07,346 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-17 16:48:07,346 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1401667468] [2020-07-17 16:48:07,346 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-17 16:48:07,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:48:07,614 WARN L193 SmtUtils]: Spent 186.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-07-17 16:48:07,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:48:07,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:48:07,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:48:07,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:48:07,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:48:07,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:48:07,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:48:07,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:48:07,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:48:07,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:48:07,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:48:07,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:48:07,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:48:07,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:48:07,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:48:07,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:48:07,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:48:07,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:48:07,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:48:07,837 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2020-07-17 16:48:07,838 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1401667468] [2020-07-17 16:48:07,838 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-17 16:48:07,838 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2020-07-17 16:48:07,838 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2131063442] [2020-07-17 16:48:07,839 INFO L459 AbstractCegarLoop]: Interpolant automaton has 14 states [2020-07-17 16:48:07,839 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-17 16:48:07,839 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2020-07-17 16:48:07,840 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=154, Unknown=0, NotChecked=0, Total=182 [2020-07-17 16:48:07,840 INFO L87 Difference]: Start difference. First operand 728 states and 815 transitions. Second operand 14 states. [2020-07-17 16:48:08,397 WARN L193 SmtUtils]: Spent 207.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-07-17 16:48:08,639 WARN L193 SmtUtils]: Spent 217.00 ms on a formula simplification that was a NOOP. DAG size: 194 [2020-07-17 16:48:08,886 WARN L193 SmtUtils]: Spent 211.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-07-17 16:48:09,149 WARN L193 SmtUtils]: Spent 229.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-07-17 16:48:09,368 WARN L193 SmtUtils]: Spent 194.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-07-17 16:48:10,439 WARN L193 SmtUtils]: Spent 185.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-07-17 16:48:10,673 WARN L193 SmtUtils]: Spent 198.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-07-17 16:48:10,941 WARN L193 SmtUtils]: Spent 199.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-07-17 16:48:11,210 WARN L193 SmtUtils]: Spent 200.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-07-17 16:48:11,468 WARN L193 SmtUtils]: Spent 212.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-07-17 16:48:13,008 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-17 16:48:13,009 INFO L93 Difference]: Finished difference Result 1552 states and 1866 transitions. [2020-07-17 16:48:13,009 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2020-07-17 16:48:13,010 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 234 [2020-07-17 16:48:13,010 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-17 16:48:13,019 INFO L225 Difference]: With dead ends: 1552 [2020-07-17 16:48:13,020 INFO L226 Difference]: Without dead ends: 939 [2020-07-17 16:48:13,024 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 71 GetRequests, 45 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 79 ImplicationChecksByTransitivity, 2.5s TimeCoverageRelationStatistics Valid=172, Invalid=584, Unknown=0, NotChecked=0, Total=756 [2020-07-17 16:48:13,027 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 939 states. [2020-07-17 16:48:13,372 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 939 to 740. [2020-07-17 16:48:13,373 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 740 states. [2020-07-17 16:48:13,376 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 740 states to 740 states and 827 transitions. [2020-07-17 16:48:13,377 INFO L78 Accepts]: Start accepts. Automaton has 740 states and 827 transitions. Word has length 234 [2020-07-17 16:48:13,377 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-17 16:48:13,377 INFO L479 AbstractCegarLoop]: Abstraction has 740 states and 827 transitions. [2020-07-17 16:48:13,378 INFO L480 AbstractCegarLoop]: Interpolant automaton has 14 states. [2020-07-17 16:48:13,378 INFO L276 IsEmpty]: Start isEmpty. Operand 740 states and 827 transitions. [2020-07-17 16:48:13,386 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 235 [2020-07-17 16:48:13,386 INFO L414 BasicCegarLoop]: Found error trace [2020-07-17 16:48:13,386 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-17 16:48:13,388 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-07-17 16:48:13,388 INFO L427 AbstractCegarLoop]: === Iteration 7 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-17 16:48:13,388 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-17 16:48:13,389 INFO L82 PathProgramCache]: Analyzing trace with hash -1075021015, now seen corresponding path program 1 times [2020-07-17 16:48:13,389 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-17 16:48:13,390 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [765904966] [2020-07-17 16:48:13,390 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-17 16:48:13,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:48:13,709 WARN L193 SmtUtils]: Spent 168.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-07-17 16:48:13,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:48:13,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:48:13,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:48:13,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:48:13,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:48:13,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:48:13,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:48:13,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:48:13,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:48:13,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:48:13,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:48:13,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:48:13,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:48:13,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:48:13,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:48:13,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:48:13,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:48:13,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:48:13,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:48:13,957 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2020-07-17 16:48:13,958 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [765904966] [2020-07-17 16:48:13,958 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-17 16:48:13,958 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-07-17 16:48:13,959 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1036929679] [2020-07-17 16:48:13,959 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-07-17 16:48:13,959 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-17 16:48:13,960 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-07-17 16:48:13,960 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2020-07-17 16:48:13,960 INFO L87 Difference]: Start difference. First operand 740 states and 827 transitions. Second operand 8 states. [2020-07-17 16:48:14,406 WARN L193 SmtUtils]: Spent 202.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-07-17 16:48:14,997 WARN L193 SmtUtils]: Spent 215.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-07-17 16:48:17,879 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-17 16:48:17,880 INFO L93 Difference]: Finished difference Result 2321 states and 2826 transitions. [2020-07-17 16:48:17,880 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2020-07-17 16:48:17,880 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 234 [2020-07-17 16:48:17,881 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-17 16:48:17,891 INFO L225 Difference]: With dead ends: 2321 [2020-07-17 16:48:17,891 INFO L226 Difference]: Without dead ends: 1696 [2020-07-17 16:48:17,895 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 78 GetRequests, 51 SyntacticMatches, 3 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 168 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=163, Invalid=487, Unknown=0, NotChecked=0, Total=650 [2020-07-17 16:48:17,897 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1696 states. [2020-07-17 16:48:18,300 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1696 to 1428. [2020-07-17 16:48:18,300 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1428 states. [2020-07-17 16:48:18,306 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1428 states to 1428 states and 1624 transitions. [2020-07-17 16:48:18,306 INFO L78 Accepts]: Start accepts. Automaton has 1428 states and 1624 transitions. Word has length 234 [2020-07-17 16:48:18,307 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-17 16:48:18,307 INFO L479 AbstractCegarLoop]: Abstraction has 1428 states and 1624 transitions. [2020-07-17 16:48:18,307 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-07-17 16:48:18,307 INFO L276 IsEmpty]: Start isEmpty. Operand 1428 states and 1624 transitions. [2020-07-17 16:48:18,312 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 240 [2020-07-17 16:48:18,312 INFO L414 BasicCegarLoop]: Found error trace [2020-07-17 16:48:18,312 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-17 16:48:18,312 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-07-17 16:48:18,313 INFO L427 AbstractCegarLoop]: === Iteration 8 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-17 16:48:18,313 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-17 16:48:18,313 INFO L82 PathProgramCache]: Analyzing trace with hash 1371063584, now seen corresponding path program 1 times [2020-07-17 16:48:18,313 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-17 16:48:18,313 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1497358316] [2020-07-17 16:48:18,314 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-17 16:48:18,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:48:18,701 WARN L193 SmtUtils]: Spent 246.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-07-17 16:48:18,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:48:18,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:48:18,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:48:18,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:48:18,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:48:18,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:48:18,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:48:18,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:48:18,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:48:18,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:48:18,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:48:18,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:48:18,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:48:18,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:48:18,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:48:18,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:48:18,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:48:18,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:48:18,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:48:18,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:48:19,034 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2020-07-17 16:48:19,035 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1497358316] [2020-07-17 16:48:19,035 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-17 16:48:19,036 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2020-07-17 16:48:19,036 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [109146858] [2020-07-17 16:48:19,037 INFO L459 AbstractCegarLoop]: Interpolant automaton has 15 states [2020-07-17 16:48:19,037 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-17 16:48:19,037 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2020-07-17 16:48:19,038 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=177, Unknown=0, NotChecked=0, Total=210 [2020-07-17 16:48:19,038 INFO L87 Difference]: Start difference. First operand 1428 states and 1624 transitions. Second operand 15 states. [2020-07-17 16:48:19,777 WARN L193 SmtUtils]: Spent 429.00 ms on a formula simplification. DAG size of input: 191 DAG size of output: 189 [2020-07-17 16:48:20,554 WARN L193 SmtUtils]: Spent 195.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-07-17 16:48:21,709 WARN L193 SmtUtils]: Spent 408.00 ms on a formula simplification. DAG size of input: 193 DAG size of output: 191 [2020-07-17 16:48:22,193 WARN L193 SmtUtils]: Spent 433.00 ms on a formula simplification. DAG size of input: 195 DAG size of output: 193 [2020-07-17 16:48:22,508 WARN L193 SmtUtils]: Spent 204.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-07-17 16:48:22,795 WARN L193 SmtUtils]: Spent 246.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-07-17 16:48:23,284 WARN L193 SmtUtils]: Spent 421.00 ms on a formula simplification. DAG size of input: 194 DAG size of output: 192 [2020-07-17 16:48:23,528 WARN L193 SmtUtils]: Spent 207.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-07-17 16:48:23,821 WARN L193 SmtUtils]: Spent 211.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-07-17 16:48:24,071 WARN L193 SmtUtils]: Spent 209.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-07-17 16:48:27,362 WARN L193 SmtUtils]: Spent 411.00 ms on a formula simplification. DAG size of input: 190 DAG size of output: 189 [2020-07-17 16:48:27,997 WARN L193 SmtUtils]: Spent 250.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-07-17 16:48:28,237 WARN L193 SmtUtils]: Spent 212.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-07-17 16:48:28,559 WARN L193 SmtUtils]: Spent 203.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-07-17 16:48:29,804 WARN L193 SmtUtils]: Spent 422.00 ms on a formula simplification. DAG size of input: 192 DAG size of output: 191 [2020-07-17 16:48:30,267 WARN L193 SmtUtils]: Spent 433.00 ms on a formula simplification. DAG size of input: 194 DAG size of output: 193 [2020-07-17 16:48:30,804 WARN L193 SmtUtils]: Spent 471.00 ms on a formula simplification. DAG size of input: 193 DAG size of output: 192 [2020-07-17 16:48:31,635 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-17 16:48:31,636 INFO L93 Difference]: Finished difference Result 4367 states and 5340 transitions. [2020-07-17 16:48:31,637 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 56 states. [2020-07-17 16:48:31,638 INFO L78 Accepts]: Start accepts. Automaton has 15 states. Word has length 239 [2020-07-17 16:48:31,638 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-17 16:48:31,657 INFO L225 Difference]: With dead ends: 4367 [2020-07-17 16:48:31,657 INFO L226 Difference]: Without dead ends: 3335 [2020-07-17 16:48:31,664 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 118 GetRequests, 55 SyntacticMatches, 0 SemanticMatches, 63 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1301 ImplicationChecksByTransitivity, 6.6s TimeCoverageRelationStatistics Valid=829, Invalid=3331, Unknown=0, NotChecked=0, Total=4160 [2020-07-17 16:48:31,668 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3335 states. [2020-07-17 16:48:32,821 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3335 to 2625. [2020-07-17 16:48:32,821 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2625 states. [2020-07-17 16:48:32,828 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2625 states to 2625 states and 2965 transitions. [2020-07-17 16:48:32,829 INFO L78 Accepts]: Start accepts. Automaton has 2625 states and 2965 transitions. Word has length 239 [2020-07-17 16:48:32,830 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-17 16:48:32,830 INFO L479 AbstractCegarLoop]: Abstraction has 2625 states and 2965 transitions. [2020-07-17 16:48:32,830 INFO L480 AbstractCegarLoop]: Interpolant automaton has 15 states. [2020-07-17 16:48:32,830 INFO L276 IsEmpty]: Start isEmpty. Operand 2625 states and 2965 transitions. [2020-07-17 16:48:32,837 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 326 [2020-07-17 16:48:32,837 INFO L414 BasicCegarLoop]: Found error trace [2020-07-17 16:48:32,838 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-17 16:48:32,838 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-07-17 16:48:32,839 INFO L427 AbstractCegarLoop]: === Iteration 9 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-17 16:48:32,839 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-17 16:48:32,839 INFO L82 PathProgramCache]: Analyzing trace with hash 1120150761, now seen corresponding path program 1 times [2020-07-17 16:48:32,839 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-17 16:48:32,839 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1449226567] [2020-07-17 16:48:32,840 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-17 16:48:32,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:48:33,130 WARN L193 SmtUtils]: Spent 181.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-07-17 16:48:33,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:48:33,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:48:33,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:48:33,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:48:33,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:48:33,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:48:33,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:48:33,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:48:33,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:48:33,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:48:33,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:48:33,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:48:33,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:48:33,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:48:33,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:48:33,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:48:33,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:48:33,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:48:33,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:48:33,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:48:33,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:48:33,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:48:33,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:48:33,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:48:33,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:48:33,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:48:33,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:48:33,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:48:33,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:48:33,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:48:33,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:48:33,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:48:33,572 INFO L134 CoverageAnalysis]: Checked inductivity of 78 backedges. 34 proven. 9 refuted. 0 times theorem prover too weak. 35 trivial. 0 not checked. [2020-07-17 16:48:33,573 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1449226567] [2020-07-17 16:48:33,573 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-07-17 16:48:33,573 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [19] total 19 [2020-07-17 16:48:33,573 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [882062116] [2020-07-17 16:48:33,574 INFO L459 AbstractCegarLoop]: Interpolant automaton has 19 states [2020-07-17 16:48:33,574 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-17 16:48:33,574 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2020-07-17 16:48:33,574 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=297, Unknown=0, NotChecked=0, Total=342 [2020-07-17 16:48:33,574 INFO L87 Difference]: Start difference. First operand 2625 states and 2965 transitions. Second operand 19 states. [2020-07-17 16:48:34,409 WARN L193 SmtUtils]: Spent 207.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-07-17 16:48:34,658 WARN L193 SmtUtils]: Spent 216.00 ms on a formula simplification that was a NOOP. DAG size: 194 [2020-07-17 16:48:34,959 WARN L193 SmtUtils]: Spent 256.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-07-17 16:48:35,198 WARN L193 SmtUtils]: Spent 200.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-07-17 16:48:35,423 WARN L193 SmtUtils]: Spent 195.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-07-17 16:48:36,341 WARN L193 SmtUtils]: Spent 284.00 ms on a formula simplification that was a NOOP. DAG size: 211 [2020-07-17 16:48:36,795 WARN L193 SmtUtils]: Spent 226.00 ms on a formula simplification that was a NOOP. DAG size: 197 [2020-07-17 16:48:37,052 WARN L193 SmtUtils]: Spent 219.00 ms on a formula simplification that was a NOOP. DAG size: 194 [2020-07-17 16:48:37,344 WARN L193 SmtUtils]: Spent 250.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2020-07-17 16:48:37,624 WARN L193 SmtUtils]: Spent 218.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-07-17 16:48:37,961 WARN L193 SmtUtils]: Spent 237.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2020-07-17 16:48:38,313 WARN L193 SmtUtils]: Spent 268.00 ms on a formula simplification that was a NOOP. DAG size: 207 [2020-07-17 16:48:38,636 WARN L193 SmtUtils]: Spent 224.00 ms on a formula simplification that was a NOOP. DAG size: 198 [2020-07-17 16:48:40,932 WARN L193 SmtUtils]: Spent 204.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-07-17 16:48:42,154 WARN L193 SmtUtils]: Spent 442.00 ms on a formula simplification. DAG size of input: 198 DAG size of output: 191 [2020-07-17 16:48:42,774 WARN L193 SmtUtils]: Spent 534.00 ms on a formula simplification. DAG size of input: 203 DAG size of output: 193 [2020-07-17 16:48:43,291 WARN L193 SmtUtils]: Spent 431.00 ms on a formula simplification. DAG size of input: 195 DAG size of output: 193 [2020-07-17 16:48:43,700 WARN L193 SmtUtils]: Spent 218.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-07-17 16:48:44,474 WARN L193 SmtUtils]: Spent 212.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-07-17 16:48:45,071 WARN L193 SmtUtils]: Spent 239.00 ms on a formula simplification that was a NOOP. DAG size: 199 [2020-07-17 16:48:45,409 WARN L193 SmtUtils]: Spent 269.00 ms on a formula simplification that was a NOOP. DAG size: 204 [2020-07-17 16:48:46,046 WARN L193 SmtUtils]: Spent 445.00 ms on a formula simplification. DAG size of input: 200 DAG size of output: 194 [2020-07-17 16:48:46,613 WARN L193 SmtUtils]: Spent 483.00 ms on a formula simplification. DAG size of input: 205 DAG size of output: 196 [2020-07-17 16:48:47,848 WARN L193 SmtUtils]: Spent 283.00 ms on a formula simplification that was a NOOP. DAG size: 209 [2020-07-17 16:48:48,407 WARN L193 SmtUtils]: Spent 220.00 ms on a formula simplification that was a NOOP. DAG size: 195 [2020-07-17 16:48:48,992 WARN L193 SmtUtils]: Spent 453.00 ms on a formula simplification. DAG size of input: 197 DAG size of output: 195 [2020-07-17 16:48:51,008 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-17 16:48:51,008 INFO L93 Difference]: Finished difference Result 5946 states and 6998 transitions. [2020-07-17 16:48:51,011 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 78 states. [2020-07-17 16:48:51,011 INFO L78 Accepts]: Start accepts. Automaton has 19 states. Word has length 325 [2020-07-17 16:48:51,012 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-17 16:48:51,031 INFO L225 Difference]: With dead ends: 5946 [2020-07-17 16:48:51,032 INFO L226 Difference]: Without dead ends: 3702 [2020-07-17 16:48:51,042 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 176 GetRequests, 88 SyntacticMatches, 0 SemanticMatches, 88 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2459 ImplicationChecksByTransitivity, 9.9s TimeCoverageRelationStatistics Valid=1409, Invalid=6601, Unknown=0, NotChecked=0, Total=8010 [2020-07-17 16:48:51,047 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3702 states. [2020-07-17 16:48:52,130 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3702 to 3051. [2020-07-17 16:48:52,130 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3051 states. [2020-07-17 16:48:52,138 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3051 states to 3051 states and 3394 transitions. [2020-07-17 16:48:52,138 INFO L78 Accepts]: Start accepts. Automaton has 3051 states and 3394 transitions. Word has length 325 [2020-07-17 16:48:52,139 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-17 16:48:52,139 INFO L479 AbstractCegarLoop]: Abstraction has 3051 states and 3394 transitions. [2020-07-17 16:48:52,139 INFO L480 AbstractCegarLoop]: Interpolant automaton has 19 states. [2020-07-17 16:48:52,139 INFO L276 IsEmpty]: Start isEmpty. Operand 3051 states and 3394 transitions. [2020-07-17 16:48:52,150 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 518 [2020-07-17 16:48:52,150 INFO L414 BasicCegarLoop]: Found error trace [2020-07-17 16:48:52,151 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-17 16:48:52,151 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-07-17 16:48:52,151 INFO L427 AbstractCegarLoop]: === Iteration 10 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-17 16:48:52,151 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-17 16:48:52,151 INFO L82 PathProgramCache]: Analyzing trace with hash -1262368258, now seen corresponding path program 1 times [2020-07-17 16:48:52,152 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-17 16:48:52,152 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [908027760] [2020-07-17 16:48:52,152 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-17 16:48:52,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:48:52,455 WARN L193 SmtUtils]: Spent 193.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-07-17 16:48:52,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:48:52,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:48:52,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:48:52,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:48:52,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:48:52,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:48:52,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:48:52,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:48:52,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:48:52,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:48:52,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:48:52,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:48:52,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:48:52,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:48:52,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:48:52,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:48:52,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:48:52,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:48:52,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:48:52,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:48:52,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:48:52,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:48:52,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:48:52,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:48:52,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:48:52,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:48:52,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:48:52,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:48:52,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:48:52,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:48:52,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:48:52,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:48:52,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:48:52,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:48:52,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:48:52,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:48:52,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:48:52,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:48:52,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:48:52,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:48:52,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:48:52,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:48:52,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:48:52,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:48:52,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:48:52,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:48:52,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:48:52,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:48:52,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:48:52,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:48:52,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:48:52,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:48:52,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:48:52,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:48:52,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:48:52,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:48:52,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:48:53,089 INFO L134 CoverageAnalysis]: Checked inductivity of 476 backedges. 124 proven. 38 refuted. 0 times theorem prover too weak. 314 trivial. 0 not checked. [2020-07-17 16:48:53,089 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [908027760] [2020-07-17 16:48:53,090 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-07-17 16:48:53,090 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17] total 17 [2020-07-17 16:48:53,090 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1468950649] [2020-07-17 16:48:53,091 INFO L459 AbstractCegarLoop]: Interpolant automaton has 17 states [2020-07-17 16:48:53,091 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-17 16:48:53,091 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2020-07-17 16:48:53,091 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=227, Unknown=0, NotChecked=0, Total=272 [2020-07-17 16:48:53,091 INFO L87 Difference]: Start difference. First operand 3051 states and 3394 transitions. Second operand 17 states. [2020-07-17 16:48:54,870 WARN L193 SmtUtils]: Spent 217.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-07-17 16:48:55,132 WARN L193 SmtUtils]: Spent 230.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-07-17 16:48:55,403 WARN L193 SmtUtils]: Spent 214.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-07-17 16:48:55,680 WARN L193 SmtUtils]: Spent 226.00 ms on a formula simplification that was a NOOP. DAG size: 195 [2020-07-17 16:48:55,928 WARN L193 SmtUtils]: Spent 216.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-07-17 16:48:56,194 WARN L193 SmtUtils]: Spent 210.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-07-17 16:48:57,779 WARN L193 SmtUtils]: Spent 225.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-07-17 16:48:58,067 WARN L193 SmtUtils]: Spent 238.00 ms on a formula simplification that was a NOOP. DAG size: 195 [2020-07-17 16:49:02,200 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-17 16:49:02,200 INFO L93 Difference]: Finished difference Result 8768 states and 10283 transitions. [2020-07-17 16:49:02,200 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 40 states. [2020-07-17 16:49:02,201 INFO L78 Accepts]: Start accepts. Automaton has 17 states. Word has length 517 [2020-07-17 16:49:02,201 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-17 16:49:02,229 INFO L225 Difference]: With dead ends: 8768 [2020-07-17 16:49:02,229 INFO L226 Difference]: Without dead ends: 5317 [2020-07-17 16:49:02,249 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 180 GetRequests, 128 SyntacticMatches, 5 SemanticMatches, 47 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 600 ImplicationChecksByTransitivity, 2.7s TimeCoverageRelationStatistics Valid=521, Invalid=1831, Unknown=0, NotChecked=0, Total=2352 [2020-07-17 16:49:02,255 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5317 states. [2020-07-17 16:49:03,614 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5317 to 4152. [2020-07-17 16:49:03,614 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4152 states. [2020-07-17 16:49:03,623 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4152 states to 4152 states and 4701 transitions. [2020-07-17 16:49:03,625 INFO L78 Accepts]: Start accepts. Automaton has 4152 states and 4701 transitions. Word has length 517 [2020-07-17 16:49:03,626 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-17 16:49:03,626 INFO L479 AbstractCegarLoop]: Abstraction has 4152 states and 4701 transitions. [2020-07-17 16:49:03,626 INFO L480 AbstractCegarLoop]: Interpolant automaton has 17 states. [2020-07-17 16:49:03,626 INFO L276 IsEmpty]: Start isEmpty. Operand 4152 states and 4701 transitions. [2020-07-17 16:49:03,640 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 528 [2020-07-17 16:49:03,640 INFO L414 BasicCegarLoop]: Found error trace [2020-07-17 16:49:03,641 INFO L422 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-17 16:49:03,641 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-07-17 16:49:03,641 INFO L427 AbstractCegarLoop]: === Iteration 11 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-17 16:49:03,641 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-17 16:49:03,642 INFO L82 PathProgramCache]: Analyzing trace with hash -323355931, now seen corresponding path program 1 times [2020-07-17 16:49:03,642 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-17 16:49:03,642 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [90491832] [2020-07-17 16:49:03,642 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-17 16:49:03,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:49:03,936 WARN L193 SmtUtils]: Spent 173.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-07-17 16:49:03,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:49:03,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:49:03,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:49:03,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:49:03,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:49:04,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:49:04,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:49:04,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:49:04,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:49:04,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:49:04,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:49:04,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:49:04,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:49:04,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:49:04,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:49:04,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:49:04,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:49:04,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:49:04,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:49:04,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:49:04,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:49:04,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:49:04,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:49:04,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:49:04,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:49:04,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:49:04,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:49:04,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:49:04,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:49:04,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:49:04,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:49:04,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:49:04,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:49:04,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:49:04,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:49:04,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:49:04,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:49:04,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:49:04,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:49:04,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:49:04,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:49:04,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:49:04,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:49:04,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:49:04,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:49:04,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:49:04,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:49:04,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:49:04,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:49:04,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:49:04,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:49:04,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:49:04,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:49:04,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:49:04,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:49:04,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:49:04,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:49:04,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:49:04,718 INFO L134 CoverageAnalysis]: Checked inductivity of 506 backedges. 133 proven. 41 refuted. 0 times theorem prover too weak. 332 trivial. 0 not checked. [2020-07-17 16:49:04,718 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [90491832] [2020-07-17 16:49:04,718 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-07-17 16:49:04,718 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [19] total 19 [2020-07-17 16:49:04,719 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [152235267] [2020-07-17 16:49:04,719 INFO L459 AbstractCegarLoop]: Interpolant automaton has 19 states [2020-07-17 16:49:04,720 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-17 16:49:04,720 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2020-07-17 16:49:04,723 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=44, Invalid=298, Unknown=0, NotChecked=0, Total=342 [2020-07-17 16:49:04,723 INFO L87 Difference]: Start difference. First operand 4152 states and 4701 transitions. Second operand 19 states. [2020-07-17 16:49:05,261 WARN L193 SmtUtils]: Spent 210.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-07-17 16:49:05,624 WARN L193 SmtUtils]: Spent 223.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-07-17 16:49:05,889 WARN L193 SmtUtils]: Spent 235.00 ms on a formula simplification that was a NOOP. DAG size: 196 [2020-07-17 16:49:06,156 WARN L193 SmtUtils]: Spent 216.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-07-17 16:49:06,413 WARN L193 SmtUtils]: Spent 221.00 ms on a formula simplification that was a NOOP. DAG size: 194 [2020-07-17 16:49:06,663 WARN L193 SmtUtils]: Spent 215.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-07-17 16:49:07,721 WARN L193 SmtUtils]: Spent 215.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-07-17 16:49:07,981 WARN L193 SmtUtils]: Spent 220.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-07-17 16:49:09,350 WARN L193 SmtUtils]: Spent 214.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-07-17 16:49:09,667 WARN L193 SmtUtils]: Spent 224.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-07-17 16:49:09,978 WARN L193 SmtUtils]: Spent 219.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-07-17 16:49:10,546 WARN L193 SmtUtils]: Spent 209.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-07-17 16:49:11,441 WARN L193 SmtUtils]: Spent 214.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-07-17 16:49:11,711 WARN L193 SmtUtils]: Spent 219.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-07-17 16:49:12,642 WARN L193 SmtUtils]: Spent 213.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-07-17 16:49:12,916 WARN L193 SmtUtils]: Spent 219.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-07-17 16:49:13,167 WARN L193 SmtUtils]: Spent 214.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-07-17 16:49:15,664 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-17 16:49:15,665 INFO L93 Difference]: Finished difference Result 8388 states and 9772 transitions. [2020-07-17 16:49:15,665 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 44 states. [2020-07-17 16:49:15,665 INFO L78 Accepts]: Start accepts. Automaton has 19 states. Word has length 527 [2020-07-17 16:49:15,666 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-17 16:49:15,688 INFO L225 Difference]: With dead ends: 8388 [2020-07-17 16:49:15,688 INFO L226 Difference]: Without dead ends: 4653 [2020-07-17 16:49:15,699 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 194 GetRequests, 138 SyntacticMatches, 0 SemanticMatches, 56 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 838 ImplicationChecksByTransitivity, 4.8s TimeCoverageRelationStatistics Valid=645, Invalid=2661, Unknown=0, NotChecked=0, Total=3306 [2020-07-17 16:49:15,704 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4653 states. [2020-07-17 16:49:16,969 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4653 to 4053. [2020-07-17 16:49:16,969 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4053 states. [2020-07-17 16:49:16,975 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4053 states to 4053 states and 4560 transitions. [2020-07-17 16:49:16,976 INFO L78 Accepts]: Start accepts. Automaton has 4053 states and 4560 transitions. Word has length 527 [2020-07-17 16:49:16,976 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-17 16:49:16,976 INFO L479 AbstractCegarLoop]: Abstraction has 4053 states and 4560 transitions. [2020-07-17 16:49:16,977 INFO L480 AbstractCegarLoop]: Interpolant automaton has 19 states. [2020-07-17 16:49:16,977 INFO L276 IsEmpty]: Start isEmpty. Operand 4053 states and 4560 transitions. [2020-07-17 16:49:16,988 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 529 [2020-07-17 16:49:16,989 INFO L414 BasicCegarLoop]: Found error trace [2020-07-17 16:49:16,989 INFO L422 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2020-07-17 16:49:16,989 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-07-17 16:49:16,990 INFO L427 AbstractCegarLoop]: === Iteration 12 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-17 16:49:16,990 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-17 16:49:16,990 INFO L82 PathProgramCache]: Analyzing trace with hash -1586782141, now seen corresponding path program 1 times [2020-07-17 16:49:16,990 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-17 16:49:16,990 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [730520800] [2020-07-17 16:49:16,991 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-17 16:49:17,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:49:17,280 WARN L193 SmtUtils]: Spent 188.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-07-17 16:49:17,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:49:17,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:49:17,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:49:17,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:49:17,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:49:17,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:49:17,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:49:17,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:49:17,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:49:17,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:49:17,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:49:17,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:49:17,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:49:17,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:49:17,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:49:17,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:49:17,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:49:17,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:49:17,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:49:17,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:49:17,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:49:17,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:49:17,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:49:17,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:49:17,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:49:17,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:49:17,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:49:17,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:49:17,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:49:17,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:49:17,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:49:17,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:49:17,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:49:17,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:49:17,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:49:17,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:49:17,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:49:17,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:49:17,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:49:17,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:49:17,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:49:17,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:49:17,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:49:17,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:49:17,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:49:17,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:49:17,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:49:17,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:49:17,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:49:17,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:49:17,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:49:17,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:49:17,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:49:17,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:49:17,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:49:17,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:49:17,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:49:17,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:49:17,831 INFO L134 CoverageAnalysis]: Checked inductivity of 507 backedges. 122 proven. 11 refuted. 0 times theorem prover too weak. 374 trivial. 0 not checked. [2020-07-17 16:49:17,831 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [730520800] [2020-07-17 16:49:17,831 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-07-17 16:49:17,832 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17] total 17 [2020-07-17 16:49:17,832 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1313887358] [2020-07-17 16:49:17,833 INFO L459 AbstractCegarLoop]: Interpolant automaton has 17 states [2020-07-17 16:49:17,833 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-17 16:49:17,833 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2020-07-17 16:49:17,834 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=233, Unknown=0, NotChecked=0, Total=272 [2020-07-17 16:49:17,834 INFO L87 Difference]: Start difference. First operand 4053 states and 4560 transitions. Second operand 17 states. [2020-07-17 16:49:18,364 WARN L193 SmtUtils]: Spent 209.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-07-17 16:49:19,465 WARN L193 SmtUtils]: Spent 207.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-07-17 16:49:21,881 WARN L193 SmtUtils]: Spent 227.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-07-17 16:49:22,188 WARN L193 SmtUtils]: Spent 240.00 ms on a formula simplification that was a NOOP. DAG size: 195 [2020-07-17 16:49:22,540 WARN L193 SmtUtils]: Spent 229.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-07-17 16:49:22,845 WARN L193 SmtUtils]: Spent 226.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-07-17 16:49:23,119 WARN L193 SmtUtils]: Spent 240.00 ms on a formula simplification that was a NOOP. DAG size: 195 [2020-07-17 16:49:23,392 WARN L193 SmtUtils]: Spent 237.00 ms on a formula simplification that was a NOOP. DAG size: 196 [2020-07-17 16:49:23,650 WARN L193 SmtUtils]: Spent 223.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-07-17 16:49:23,936 WARN L193 SmtUtils]: Spent 242.00 ms on a formula simplification that was a NOOP. DAG size: 195 [2020-07-17 16:49:24,212 WARN L193 SmtUtils]: Spent 232.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-07-17 16:49:24,538 WARN L193 SmtUtils]: Spent 245.00 ms on a formula simplification that was a NOOP. DAG size: 196 [2020-07-17 16:49:24,815 WARN L193 SmtUtils]: Spent 232.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-07-17 16:49:25,104 WARN L193 SmtUtils]: Spent 249.00 ms on a formula simplification that was a NOOP. DAG size: 196 [2020-07-17 16:49:27,113 WARN L193 SmtUtils]: Spent 245.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-07-17 16:49:27,730 WARN L193 SmtUtils]: Spent 567.00 ms on a formula simplification. DAG size of input: 201 DAG size of output: 195 [2020-07-17 16:49:28,220 WARN L193 SmtUtils]: Spent 452.00 ms on a formula simplification. DAG size of input: 198 DAG size of output: 192 [2020-07-17 16:49:28,498 WARN L193 SmtUtils]: Spent 225.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-07-17 16:49:28,809 WARN L193 SmtUtils]: Spent 253.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2020-07-17 16:49:29,089 WARN L193 SmtUtils]: Spent 239.00 ms on a formula simplification that was a NOOP. DAG size: 199 [2020-07-17 16:49:31,978 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-17 16:49:31,978 INFO L93 Difference]: Finished difference Result 12550 states and 14704 transitions. [2020-07-17 16:49:31,985 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 55 states. [2020-07-17 16:49:31,985 INFO L78 Accepts]: Start accepts. Automaton has 17 states. Word has length 528 [2020-07-17 16:49:31,986 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-17 16:49:32,043 INFO L225 Difference]: With dead ends: 12550 [2020-07-17 16:49:32,043 INFO L226 Difference]: Without dead ends: 8625 [2020-07-17 16:49:32,059 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 195 GetRequests, 130 SyntacticMatches, 1 SemanticMatches, 64 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1207 ImplicationChecksByTransitivity, 6.6s TimeCoverageRelationStatistics Valid=843, Invalid=3447, Unknown=0, NotChecked=0, Total=4290 [2020-07-17 16:49:32,068 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8625 states. [2020-07-17 16:49:34,410 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8625 to 7511. [2020-07-17 16:49:34,410 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7511 states. [2020-07-17 16:49:34,422 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7511 states to 7511 states and 8356 transitions. [2020-07-17 16:49:34,424 INFO L78 Accepts]: Start accepts. Automaton has 7511 states and 8356 transitions. Word has length 528 [2020-07-17 16:49:34,425 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-17 16:49:34,425 INFO L479 AbstractCegarLoop]: Abstraction has 7511 states and 8356 transitions. [2020-07-17 16:49:34,425 INFO L480 AbstractCegarLoop]: Interpolant automaton has 17 states. [2020-07-17 16:49:34,425 INFO L276 IsEmpty]: Start isEmpty. Operand 7511 states and 8356 transitions. [2020-07-17 16:49:34,439 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 534 [2020-07-17 16:49:34,439 INFO L414 BasicCegarLoop]: Found error trace [2020-07-17 16:49:34,440 INFO L422 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-17 16:49:34,440 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2020-07-17 16:49:34,440 INFO L427 AbstractCegarLoop]: === Iteration 13 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-17 16:49:34,440 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-17 16:49:34,440 INFO L82 PathProgramCache]: Analyzing trace with hash 1491418747, now seen corresponding path program 1 times [2020-07-17 16:49:34,440 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-17 16:49:34,441 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [863400492] [2020-07-17 16:49:34,441 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-17 16:49:34,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:49:34,748 WARN L193 SmtUtils]: Spent 201.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-07-17 16:49:34,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:49:34,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:49:34,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:49:34,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:49:34,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:49:34,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:49:34,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:49:34,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:49:34,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:49:34,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:49:34,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:49:34,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:49:34,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:49:34,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:49:35,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:49:35,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:49:35,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:49:35,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:49:35,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:49:35,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:49:35,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:49:35,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:49:35,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:49:35,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:49:35,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:49:35,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:49:35,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:49:35,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:49:35,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:49:35,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:49:35,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:49:35,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:49:35,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:49:35,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:49:35,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:49:35,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:49:35,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:49:35,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:49:35,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:49:35,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:49:35,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:49:35,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:49:35,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:49:35,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:49:35,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:49:35,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:49:35,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:49:35,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:49:35,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:49:35,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:49:35,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:49:35,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:49:35,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:49:35,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:49:35,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:49:35,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:49:35,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:49:35,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:49:35,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:49:35,513 INFO L134 CoverageAnalysis]: Checked inductivity of 507 backedges. 90 proven. 50 refuted. 0 times theorem prover too weak. 367 trivial. 0 not checked. [2020-07-17 16:49:35,513 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [863400492] [2020-07-17 16:49:35,513 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-07-17 16:49:35,513 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [23] total 23 [2020-07-17 16:49:35,514 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [408320646] [2020-07-17 16:49:35,514 INFO L459 AbstractCegarLoop]: Interpolant automaton has 23 states [2020-07-17 16:49:35,515 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-17 16:49:35,515 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2020-07-17 16:49:35,515 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=55, Invalid=451, Unknown=0, NotChecked=0, Total=506 [2020-07-17 16:49:35,515 INFO L87 Difference]: Start difference. First operand 7511 states and 8356 transitions. Second operand 23 states. [2020-07-17 16:49:36,190 WARN L193 SmtUtils]: Spent 210.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-07-17 16:49:36,555 WARN L193 SmtUtils]: Spent 222.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-07-17 16:49:36,829 WARN L193 SmtUtils]: Spent 237.00 ms on a formula simplification that was a NOOP. DAG size: 196 [2020-07-17 16:49:37,099 WARN L193 SmtUtils]: Spent 219.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-07-17 16:49:37,367 WARN L193 SmtUtils]: Spent 220.00 ms on a formula simplification that was a NOOP. DAG size: 194 [2020-07-17 16:49:37,618 WARN L193 SmtUtils]: Spent 215.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-07-17 16:49:38,577 WARN L193 SmtUtils]: Spent 209.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-07-17 16:49:41,201 WARN L193 SmtUtils]: Spent 224.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-07-17 16:49:41,515 WARN L193 SmtUtils]: Spent 238.00 ms on a formula simplification that was a NOOP. DAG size: 195 [2020-07-17 16:49:41,870 WARN L193 SmtUtils]: Spent 226.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-07-17 16:49:42,211 WARN L193 SmtUtils]: Spent 223.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-07-17 16:49:42,487 WARN L193 SmtUtils]: Spent 234.00 ms on a formula simplification that was a NOOP. DAG size: 195 [2020-07-17 16:49:42,769 WARN L193 SmtUtils]: Spent 238.00 ms on a formula simplification that was a NOOP. DAG size: 195 [2020-07-17 16:49:43,034 WARN L193 SmtUtils]: Spent 227.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-07-17 16:49:43,323 WARN L193 SmtUtils]: Spent 239.00 ms on a formula simplification that was a NOOP. DAG size: 195 [2020-07-17 16:49:43,604 WARN L193 SmtUtils]: Spent 225.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-07-17 16:49:43,944 WARN L193 SmtUtils]: Spent 239.00 ms on a formula simplification that was a NOOP. DAG size: 195 [2020-07-17 16:49:44,226 WARN L193 SmtUtils]: Spent 227.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-07-17 16:49:44,536 WARN L193 SmtUtils]: Spent 253.00 ms on a formula simplification that was a NOOP. DAG size: 195 [2020-07-17 16:49:45,162 WARN L193 SmtUtils]: Spent 526.00 ms on a formula simplification. DAG size of input: 198 DAG size of output: 191 [2020-07-17 16:49:45,790 WARN L193 SmtUtils]: Spent 466.00 ms on a formula simplification. DAG size of input: 203 DAG size of output: 193 [2020-07-17 16:49:46,292 WARN L193 SmtUtils]: Spent 442.00 ms on a formula simplification. DAG size of input: 198 DAG size of output: 191 [2020-07-17 16:49:52,324 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-17 16:49:52,324 INFO L93 Difference]: Finished difference Result 16157 states and 18787 transitions. [2020-07-17 16:49:52,325 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 67 states. [2020-07-17 16:49:52,325 INFO L78 Accepts]: Start accepts. Automaton has 23 states. Word has length 533 [2020-07-17 16:49:52,326 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-17 16:49:52,365 INFO L225 Difference]: With dead ends: 16157 [2020-07-17 16:49:52,366 INFO L226 Difference]: Without dead ends: 9342 [2020-07-17 16:49:52,387 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 226 GetRequests, 140 SyntacticMatches, 3 SemanticMatches, 83 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2149 ImplicationChecksByTransitivity, 7.9s TimeCoverageRelationStatistics Valid=1297, Invalid=5843, Unknown=0, NotChecked=0, Total=7140 [2020-07-17 16:49:52,397 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9342 states. [2020-07-17 16:49:54,654 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9342 to 7153. [2020-07-17 16:49:54,655 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7153 states. [2020-07-17 16:49:54,668 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7153 states to 7153 states and 7913 transitions. [2020-07-17 16:49:54,671 INFO L78 Accepts]: Start accepts. Automaton has 7153 states and 7913 transitions. Word has length 533 [2020-07-17 16:49:54,671 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-17 16:49:54,671 INFO L479 AbstractCegarLoop]: Abstraction has 7153 states and 7913 transitions. [2020-07-17 16:49:54,672 INFO L480 AbstractCegarLoop]: Interpolant automaton has 23 states. [2020-07-17 16:49:54,672 INFO L276 IsEmpty]: Start isEmpty. Operand 7153 states and 7913 transitions. [2020-07-17 16:49:54,685 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 596 [2020-07-17 16:49:54,685 INFO L414 BasicCegarLoop]: Found error trace [2020-07-17 16:49:54,686 INFO L422 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-17 16:49:54,686 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2020-07-17 16:49:54,686 INFO L427 AbstractCegarLoop]: === Iteration 14 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-17 16:49:54,686 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-17 16:49:54,686 INFO L82 PathProgramCache]: Analyzing trace with hash 623386669, now seen corresponding path program 1 times [2020-07-17 16:49:54,687 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-17 16:49:54,687 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1522366929] [2020-07-17 16:49:54,687 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-17 16:49:54,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:49:54,984 WARN L193 SmtUtils]: Spent 187.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-07-17 16:49:54,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:49:55,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:49:55,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:49:55,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:49:55,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:49:55,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:49:55,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:49:55,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:49:55,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:49:55,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:49:55,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:49:55,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:49:55,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:49:55,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:49:55,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:49:55,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:49:55,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:49:55,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:49:55,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:49:55,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:49:55,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:49:55,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:49:55,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:49:55,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:49:55,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:49:55,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:49:55,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:49:55,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:49:55,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:49:55,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:49:55,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:49:55,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:49:55,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:49:55,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:49:55,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:49:55,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:49:55,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:49:55,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:49:55,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:49:55,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:49:55,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:49:55,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:49:55,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:49:55,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:49:55,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:49:55,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:49:55,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:49:55,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:49:55,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:49:55,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:49:55,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:49:55,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:49:55,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:49:55,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:49:55,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:49:55,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:49:55,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:49:55,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:49:55,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:49:55,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:49:55,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:49:55,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:49:55,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:49:55,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:49:55,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:49:55,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:49:55,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:49:55,677 INFO L134 CoverageAnalysis]: Checked inductivity of 717 backedges. 200 proven. 67 refuted. 0 times theorem prover too weak. 450 trivial. 0 not checked. [2020-07-17 16:49:55,677 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1522366929] [2020-07-17 16:49:55,678 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-07-17 16:49:55,678 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [19] total 19 [2020-07-17 16:49:55,678 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [879156800] [2020-07-17 16:49:55,679 INFO L459 AbstractCegarLoop]: Interpolant automaton has 19 states [2020-07-17 16:49:55,679 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-17 16:49:55,679 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2020-07-17 16:49:55,680 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=52, Invalid=290, Unknown=0, NotChecked=0, Total=342 [2020-07-17 16:49:55,680 INFO L87 Difference]: Start difference. First operand 7153 states and 7913 transitions. Second operand 19 states. [2020-07-17 16:49:56,206 WARN L193 SmtUtils]: Spent 207.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-07-17 16:49:57,977 WARN L193 SmtUtils]: Spent 224.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-07-17 16:49:58,266 WARN L193 SmtUtils]: Spent 238.00 ms on a formula simplification that was a NOOP. DAG size: 195 [2020-07-17 16:49:58,784 WARN L193 SmtUtils]: Spent 429.00 ms on a formula simplification. DAG size of input: 194 DAG size of output: 191 [2020-07-17 16:49:59,063 WARN L193 SmtUtils]: Spent 217.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-07-17 16:49:59,544 WARN L193 SmtUtils]: Spent 447.00 ms on a formula simplification. DAG size of input: 197 DAG size of output: 193 [2020-07-17 16:49:59,811 WARN L193 SmtUtils]: Spent 232.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-07-17 16:50:00,276 WARN L193 SmtUtils]: Spent 429.00 ms on a formula simplification. DAG size of input: 194 DAG size of output: 191 [2020-07-17 16:50:00,596 WARN L193 SmtUtils]: Spent 219.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-07-17 16:50:00,913 WARN L193 SmtUtils]: Spent 233.00 ms on a formula simplification that was a NOOP. DAG size: 195 [2020-07-17 16:50:01,181 WARN L193 SmtUtils]: Spent 221.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-07-17 16:50:01,460 WARN L193 SmtUtils]: Spent 221.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-07-17 16:50:03,427 WARN L193 SmtUtils]: Spent 324.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-07-17 16:50:03,871 WARN L193 SmtUtils]: Spent 360.00 ms on a formula simplification that was a NOOP. DAG size: 195 [2020-07-17 16:50:12,345 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-17 16:50:12,345 INFO L93 Difference]: Finished difference Result 15137 states and 17454 transitions. [2020-07-17 16:50:12,346 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 56 states. [2020-07-17 16:50:12,346 INFO L78 Accepts]: Start accepts. Automaton has 19 states. Word has length 595 [2020-07-17 16:50:12,347 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-17 16:50:12,384 INFO L225 Difference]: With dead ends: 15137 [2020-07-17 16:50:12,384 INFO L226 Difference]: Without dead ends: 10872 [2020-07-17 16:50:12,398 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 222 GetRequests, 151 SyntacticMatches, 7 SemanticMatches, 64 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1210 ImplicationChecksByTransitivity, 5.5s TimeCoverageRelationStatistics Valid=793, Invalid=3497, Unknown=0, NotChecked=0, Total=4290 [2020-07-17 16:50:12,410 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10872 states. [2020-07-17 16:50:15,146 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10872 to 8801. [2020-07-17 16:50:15,147 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8801 states. [2020-07-17 16:50:15,162 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8801 states to 8801 states and 9707 transitions. [2020-07-17 16:50:15,165 INFO L78 Accepts]: Start accepts. Automaton has 8801 states and 9707 transitions. Word has length 595 [2020-07-17 16:50:15,165 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-17 16:50:15,165 INFO L479 AbstractCegarLoop]: Abstraction has 8801 states and 9707 transitions. [2020-07-17 16:50:15,166 INFO L480 AbstractCegarLoop]: Interpolant automaton has 19 states. [2020-07-17 16:50:15,166 INFO L276 IsEmpty]: Start isEmpty. Operand 8801 states and 9707 transitions. [2020-07-17 16:50:15,181 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 554 [2020-07-17 16:50:15,181 INFO L414 BasicCegarLoop]: Found error trace [2020-07-17 16:50:15,181 INFO L422 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-17 16:50:15,181 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2020-07-17 16:50:15,182 INFO L427 AbstractCegarLoop]: === Iteration 15 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-17 16:50:15,182 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-17 16:50:15,182 INFO L82 PathProgramCache]: Analyzing trace with hash -1785183203, now seen corresponding path program 1 times [2020-07-17 16:50:15,182 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-17 16:50:15,182 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [549071067] [2020-07-17 16:50:15,182 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-17 16:50:15,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:50:15,534 WARN L193 SmtUtils]: Spent 230.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-07-17 16:50:15,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:50:15,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:50:15,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:50:15,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:50:15,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:50:15,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:50:15,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:50:15,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:50:15,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:50:15,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:50:15,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:50:15,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:50:15,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:50:15,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:50:15,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:50:15,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:50:15,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:50:15,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:50:15,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:50:15,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:50:15,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:50:15,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:50:15,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:50:15,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:50:15,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:50:15,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:50:15,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:50:15,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:50:15,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:50:16,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:50:16,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:50:16,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:50:16,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:50:16,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:50:16,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:50:16,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:50:16,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:50:16,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:50:16,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:50:16,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:50:16,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:50:16,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:50:16,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:50:16,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:50:16,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:50:16,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:50:16,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:50:16,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:50:16,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:50:16,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:50:16,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:50:16,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:50:16,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:50:16,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:50:16,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:50:16,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:50:16,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:50:16,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:50:16,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:50:16,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:50:16,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:50:16,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:50:16,628 INFO L134 CoverageAnalysis]: Checked inductivity of 556 backedges. 133 proven. 31 refuted. 0 times theorem prover too weak. 392 trivial. 0 not checked. [2020-07-17 16:50:16,628 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [549071067] [2020-07-17 16:50:16,629 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-07-17 16:50:16,630 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [23] total 23 [2020-07-17 16:50:16,630 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1020453186] [2020-07-17 16:50:16,631 INFO L459 AbstractCegarLoop]: Interpolant automaton has 23 states [2020-07-17 16:50:16,631 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-17 16:50:16,632 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2020-07-17 16:50:16,632 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=55, Invalid=451, Unknown=0, NotChecked=0, Total=506 [2020-07-17 16:50:16,632 INFO L87 Difference]: Start difference. First operand 8801 states and 9707 transitions. Second operand 23 states. [2020-07-17 16:50:17,265 WARN L193 SmtUtils]: Spent 210.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-07-17 16:50:17,647 WARN L193 SmtUtils]: Spent 226.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-07-17 16:50:17,919 WARN L193 SmtUtils]: Spent 235.00 ms on a formula simplification that was a NOOP. DAG size: 196 [2020-07-17 16:50:18,188 WARN L193 SmtUtils]: Spent 217.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-07-17 16:50:18,458 WARN L193 SmtUtils]: Spent 224.00 ms on a formula simplification that was a NOOP. DAG size: 194 [2020-07-17 16:50:18,711 WARN L193 SmtUtils]: Spent 218.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-07-17 16:50:19,853 WARN L193 SmtUtils]: Spent 341.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-07-17 16:50:22,667 WARN L193 SmtUtils]: Spent 227.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-07-17 16:50:22,992 WARN L193 SmtUtils]: Spent 241.00 ms on a formula simplification that was a NOOP. DAG size: 195 [2020-07-17 16:50:23,345 WARN L193 SmtUtils]: Spent 227.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-07-17 16:50:23,694 WARN L193 SmtUtils]: Spent 227.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-07-17 16:50:23,971 WARN L193 SmtUtils]: Spent 241.00 ms on a formula simplification that was a NOOP. DAG size: 195 [2020-07-17 16:50:24,255 WARN L193 SmtUtils]: Spent 240.00 ms on a formula simplification that was a NOOP. DAG size: 195 [2020-07-17 16:50:24,520 WARN L193 SmtUtils]: Spent 227.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-07-17 16:50:24,809 WARN L193 SmtUtils]: Spent 237.00 ms on a formula simplification that was a NOOP. DAG size: 195 [2020-07-17 16:50:25,090 WARN L193 SmtUtils]: Spent 224.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-07-17 16:50:25,430 WARN L193 SmtUtils]: Spent 241.00 ms on a formula simplification that was a NOOP. DAG size: 195 [2020-07-17 16:50:25,712 WARN L193 SmtUtils]: Spent 229.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-07-17 16:50:26,001 WARN L193 SmtUtils]: Spent 237.00 ms on a formula simplification that was a NOOP. DAG size: 195 [2020-07-17 16:50:29,155 WARN L193 SmtUtils]: Spent 577.00 ms on a formula simplification. DAG size of input: 198 DAG size of output: 191 [2020-07-17 16:50:29,697 WARN L193 SmtUtils]: Spent 477.00 ms on a formula simplification. DAG size of input: 203 DAG size of output: 193 [2020-07-17 16:50:30,198 WARN L193 SmtUtils]: Spent 444.00 ms on a formula simplification. DAG size of input: 198 DAG size of output: 191 [2020-07-17 16:50:35,571 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-17 16:50:35,572 INFO L93 Difference]: Finished difference Result 18645 states and 21441 transitions. [2020-07-17 16:50:35,572 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 68 states. [2020-07-17 16:50:35,572 INFO L78 Accepts]: Start accepts. Automaton has 23 states. Word has length 553 [2020-07-17 16:50:35,573 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-17 16:50:35,612 INFO L225 Difference]: With dead ends: 18645 [2020-07-17 16:50:35,612 INFO L226 Difference]: Without dead ends: 10540 [2020-07-17 16:50:35,635 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 235 GetRequests, 150 SyntacticMatches, 1 SemanticMatches, 84 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2175 ImplicationChecksByTransitivity, 8.2s TimeCoverageRelationStatistics Valid=1316, Invalid=5994, Unknown=0, NotChecked=0, Total=7310 [2020-07-17 16:50:35,645 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10540 states. [2020-07-17 16:50:38,175 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10540 to 8115. [2020-07-17 16:50:38,175 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8115 states. [2020-07-17 16:50:38,189 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8115 states to 8115 states and 8947 transitions. [2020-07-17 16:50:38,192 INFO L78 Accepts]: Start accepts. Automaton has 8115 states and 8947 transitions. Word has length 553 [2020-07-17 16:50:38,193 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-17 16:50:38,193 INFO L479 AbstractCegarLoop]: Abstraction has 8115 states and 8947 transitions. [2020-07-17 16:50:38,193 INFO L480 AbstractCegarLoop]: Interpolant automaton has 23 states. [2020-07-17 16:50:38,193 INFO L276 IsEmpty]: Start isEmpty. Operand 8115 states and 8947 transitions. [2020-07-17 16:50:38,209 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 554 [2020-07-17 16:50:38,209 INFO L414 BasicCegarLoop]: Found error trace [2020-07-17 16:50:38,209 INFO L422 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-17 16:50:38,209 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2020-07-17 16:50:38,210 INFO L427 AbstractCegarLoop]: === Iteration 16 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-17 16:50:38,210 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-17 16:50:38,210 INFO L82 PathProgramCache]: Analyzing trace with hash 1886427033, now seen corresponding path program 2 times [2020-07-17 16:50:38,210 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-17 16:50:38,210 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1977220283] [2020-07-17 16:50:38,210 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-17 16:50:38,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:50:38,530 WARN L193 SmtUtils]: Spent 196.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-07-17 16:50:38,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:50:38,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:50:38,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:50:38,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:50:38,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:50:38,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:50:38,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:50:38,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:50:38,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:50:38,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:50:38,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:50:38,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:50:38,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:50:38,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:50:38,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:50:38,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:50:38,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:50:38,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:50:38,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:50:38,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:50:38,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:50:38,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:50:38,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:50:38,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:50:38,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:50:38,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:50:38,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:50:38,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:50:38,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:50:38,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:50:38,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:50:38,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:50:38,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:50:38,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:50:38,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:50:38,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:50:38,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:50:38,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:50:38,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:50:38,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:50:38,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:50:38,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:50:38,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:50:38,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:50:38,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:50:38,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:50:38,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:50:38,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:50:38,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:50:38,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:50:38,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:50:38,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:50:38,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:50:38,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:50:38,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:50:39,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:50:39,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:50:39,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:50:39,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:50:39,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:50:39,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:50:39,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:50:39,323 INFO L134 CoverageAnalysis]: Checked inductivity of 556 backedges. 132 proven. 66 refuted. 0 times theorem prover too weak. 358 trivial. 0 not checked. [2020-07-17 16:50:39,324 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1977220283] [2020-07-17 16:50:39,327 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-07-17 16:50:39,327 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [19] total 19 [2020-07-17 16:50:39,327 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2123556423] [2020-07-17 16:50:39,328 INFO L459 AbstractCegarLoop]: Interpolant automaton has 19 states [2020-07-17 16:50:39,328 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-17 16:50:39,328 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2020-07-17 16:50:39,328 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=52, Invalid=290, Unknown=0, NotChecked=0, Total=342 [2020-07-17 16:50:39,329 INFO L87 Difference]: Start difference. First operand 8115 states and 8947 transitions. Second operand 19 states. [2020-07-17 16:50:39,898 WARN L193 SmtUtils]: Spent 213.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-07-17 16:50:41,763 WARN L193 SmtUtils]: Spent 229.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-07-17 16:50:42,058 WARN L193 SmtUtils]: Spent 241.00 ms on a formula simplification that was a NOOP. DAG size: 195 [2020-07-17 16:50:42,586 WARN L193 SmtUtils]: Spent 445.00 ms on a formula simplification. DAG size of input: 197 DAG size of output: 191 [2020-07-17 16:50:42,863 WARN L193 SmtUtils]: Spent 221.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-07-17 16:50:43,377 WARN L193 SmtUtils]: Spent 474.00 ms on a formula simplification. DAG size of input: 202 DAG size of output: 193 [2020-07-17 16:50:43,648 WARN L193 SmtUtils]: Spent 236.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-07-17 16:50:44,130 WARN L193 SmtUtils]: Spent 441.00 ms on a formula simplification. DAG size of input: 197 DAG size of output: 191 [2020-07-17 16:50:44,399 WARN L193 SmtUtils]: Spent 214.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-07-17 16:50:44,699 WARN L193 SmtUtils]: Spent 237.00 ms on a formula simplification that was a NOOP. DAG size: 196 [2020-07-17 16:50:45,045 WARN L193 SmtUtils]: Spent 273.00 ms on a formula simplification that was a NOOP. DAG size: 201 [2020-07-17 16:50:45,333 WARN L193 SmtUtils]: Spent 239.00 ms on a formula simplification that was a NOOP. DAG size: 196 [2020-07-17 16:50:45,603 WARN L193 SmtUtils]: Spent 216.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-07-17 16:50:46,792 WARN L193 SmtUtils]: Spent 229.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-07-17 16:50:47,096 WARN L193 SmtUtils]: Spent 249.00 ms on a formula simplification that was a NOOP. DAG size: 195 [2020-07-17 16:50:47,686 WARN L193 SmtUtils]: Spent 458.00 ms on a formula simplification. DAG size of input: 196 DAG size of output: 194 [2020-07-17 16:50:48,296 WARN L193 SmtUtils]: Spent 505.00 ms on a formula simplification. DAG size of input: 201 DAG size of output: 197 [2020-07-17 16:50:48,823 WARN L193 SmtUtils]: Spent 472.00 ms on a formula simplification. DAG size of input: 196 DAG size of output: 194 [2020-07-17 16:50:49,717 WARN L193 SmtUtils]: Spent 227.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-07-17 16:50:50,023 WARN L193 SmtUtils]: Spent 247.00 ms on a formula simplification that was a NOOP. DAG size: 195 [2020-07-17 16:50:53,592 WARN L193 SmtUtils]: Spent 211.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-07-17 16:50:54,505 WARN L193 SmtUtils]: Spent 229.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-07-17 16:50:54,788 WARN L193 SmtUtils]: Spent 242.00 ms on a formula simplification that was a NOOP. DAG size: 195 [2020-07-17 16:50:55,299 WARN L193 SmtUtils]: Spent 447.00 ms on a formula simplification. DAG size of input: 198 DAG size of output: 191 [2020-07-17 16:50:55,834 WARN L193 SmtUtils]: Spent 473.00 ms on a formula simplification. DAG size of input: 203 DAG size of output: 193 [2020-07-17 16:50:56,318 WARN L193 SmtUtils]: Spent 442.00 ms on a formula simplification. DAG size of input: 198 DAG size of output: 191 [2020-07-17 16:51:05,213 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-17 16:51:05,213 INFO L93 Difference]: Finished difference Result 20541 states and 24464 transitions. [2020-07-17 16:51:05,213 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 119 states. [2020-07-17 16:51:05,213 INFO L78 Accepts]: Start accepts. Automaton has 19 states. Word has length 553 [2020-07-17 16:51:05,214 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-17 16:51:05,267 INFO L225 Difference]: With dead ends: 20541 [2020-07-17 16:51:05,267 INFO L226 Difference]: Without dead ends: 15820 [2020-07-17 16:51:05,291 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 328 GetRequests, 195 SyntacticMatches, 6 SemanticMatches, 127 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6191 ImplicationChecksByTransitivity, 11.0s TimeCoverageRelationStatistics Valid=2603, Invalid=13909, Unknown=0, NotChecked=0, Total=16512 [2020-07-17 16:51:05,308 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15820 states. [2020-07-17 16:51:08,739 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15820 to 10271. [2020-07-17 16:51:08,739 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10271 states. [2020-07-17 16:51:08,753 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10271 states to 10271 states and 11303 transitions. [2020-07-17 16:51:08,757 INFO L78 Accepts]: Start accepts. Automaton has 10271 states and 11303 transitions. Word has length 553 [2020-07-17 16:51:08,757 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-17 16:51:08,758 INFO L479 AbstractCegarLoop]: Abstraction has 10271 states and 11303 transitions. [2020-07-17 16:51:08,758 INFO L480 AbstractCegarLoop]: Interpolant automaton has 19 states. [2020-07-17 16:51:08,758 INFO L276 IsEmpty]: Start isEmpty. Operand 10271 states and 11303 transitions. [2020-07-17 16:51:08,778 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 623 [2020-07-17 16:51:08,778 INFO L414 BasicCegarLoop]: Found error trace [2020-07-17 16:51:08,779 INFO L422 BasicCegarLoop]: trace histogram [9, 9, 9, 9, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-17 16:51:08,779 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2020-07-17 16:51:08,779 INFO L427 AbstractCegarLoop]: === Iteration 17 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-17 16:51:08,779 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-17 16:51:08,779 INFO L82 PathProgramCache]: Analyzing trace with hash -1869648953, now seen corresponding path program 1 times [2020-07-17 16:51:08,780 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-17 16:51:08,780 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1543206187] [2020-07-17 16:51:08,780 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-17 16:51:08,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:51:09,182 WARN L193 SmtUtils]: Spent 207.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-07-17 16:51:09,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:51:09,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:51:09,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:51:09,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:51:09,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:51:09,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:51:09,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:51:09,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:51:09,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:51:09,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:51:09,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:51:09,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:51:09,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:51:09,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:51:09,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:51:09,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:51:09,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:51:09,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:51:09,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:51:09,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:51:09,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:51:09,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:51:09,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:51:09,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:51:09,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:51:09,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:51:09,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:51:09,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:51:09,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:51:09,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:51:09,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:51:09,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:51:09,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:51:09,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:51:09,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:51:09,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:51:09,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:51:09,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:51:09,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:51:09,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:51:09,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:51:09,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:51:09,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:51:09,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:51:09,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:51:09,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:51:09,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:51:09,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:51:09,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:51:09,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:51:09,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:51:09,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:51:09,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:51:09,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:51:09,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:51:09,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:51:09,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:51:09,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:51:09,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:51:09,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:51:09,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:51:09,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:51:09,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:51:09,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:51:09,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:51:09,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:51:09,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:51:09,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:51:09,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:51:09,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:51:10,107 INFO L134 CoverageAnalysis]: Checked inductivity of 830 backedges. 161 proven. 130 refuted. 0 times theorem prover too weak. 539 trivial. 0 not checked. [2020-07-17 16:51:10,108 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1543206187] [2020-07-17 16:51:10,108 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-07-17 16:51:10,108 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [26] total 26 [2020-07-17 16:51:10,108 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [185673208] [2020-07-17 16:51:10,109 INFO L459 AbstractCegarLoop]: Interpolant automaton has 26 states [2020-07-17 16:51:10,109 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-17 16:51:10,109 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2020-07-17 16:51:10,110 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=73, Invalid=577, Unknown=0, NotChecked=0, Total=650 [2020-07-17 16:51:10,110 INFO L87 Difference]: Start difference. First operand 10271 states and 11303 transitions. Second operand 26 states. [2020-07-17 16:51:10,932 WARN L193 SmtUtils]: Spent 434.00 ms on a formula simplification. DAG size of input: 192 DAG size of output: 189 [2020-07-17 16:51:12,188 WARN L193 SmtUtils]: Spent 433.00 ms on a formula simplification. DAG size of input: 192 DAG size of output: 189 [2020-07-17 16:51:14,435 WARN L193 SmtUtils]: Spent 467.00 ms on a formula simplification. DAG size of input: 195 DAG size of output: 192 [2020-07-17 16:51:15,002 WARN L193 SmtUtils]: Spent 497.00 ms on a formula simplification. DAG size of input: 198 DAG size of output: 195 [2020-07-17 16:51:15,577 WARN L193 SmtUtils]: Spent 458.00 ms on a formula simplification. DAG size of input: 200 DAG size of output: 191 [2020-07-17 16:51:16,115 WARN L193 SmtUtils]: Spent 458.00 ms on a formula simplification. DAG size of input: 195 DAG size of output: 192 [2020-07-17 16:51:16,649 WARN L193 SmtUtils]: Spent 485.00 ms on a formula simplification. DAG size of input: 205 DAG size of output: 193 [2020-07-17 16:51:17,184 WARN L193 SmtUtils]: Spent 491.00 ms on a formula simplification. DAG size of input: 198 DAG size of output: 195 [2020-07-17 16:51:17,685 WARN L193 SmtUtils]: Spent 454.00 ms on a formula simplification. DAG size of input: 200 DAG size of output: 191 [2020-07-17 16:51:18,225 WARN L193 SmtUtils]: Spent 440.00 ms on a formula simplification. DAG size of input: 194 DAG size of output: 191 [2020-07-17 16:51:18,770 WARN L193 SmtUtils]: Spent 455.00 ms on a formula simplification. DAG size of input: 196 DAG size of output: 193 [2020-07-17 16:51:19,266 WARN L193 SmtUtils]: Spent 441.00 ms on a formula simplification. DAG size of input: 194 DAG size of output: 191 [2020-07-17 16:51:23,645 WARN L193 SmtUtils]: Spent 429.00 ms on a formula simplification. DAG size of input: 192 DAG size of output: 189 [2020-07-17 16:51:24,715 WARN L193 SmtUtils]: Spent 463.00 ms on a formula simplification. DAG size of input: 195 DAG size of output: 192 [2020-07-17 16:51:25,254 WARN L193 SmtUtils]: Spent 492.00 ms on a formula simplification. DAG size of input: 198 DAG size of output: 195 [2020-07-17 16:51:25,777 WARN L193 SmtUtils]: Spent 455.00 ms on a formula simplification. DAG size of input: 200 DAG size of output: 191 [2020-07-17 16:51:26,318 WARN L193 SmtUtils]: Spent 481.00 ms on a formula simplification. DAG size of input: 205 DAG size of output: 193 [2020-07-17 16:51:26,815 WARN L193 SmtUtils]: Spent 448.00 ms on a formula simplification. DAG size of input: 200 DAG size of output: 191 [2020-07-17 16:51:32,467 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-17 16:51:32,468 INFO L93 Difference]: Finished difference Result 19259 states and 21919 transitions. [2020-07-17 16:51:32,469 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 62 states. [2020-07-17 16:51:32,469 INFO L78 Accepts]: Start accepts. Automaton has 26 states. Word has length 622 [2020-07-17 16:51:32,469 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-17 16:51:32,474 INFO L225 Difference]: With dead ends: 19259 [2020-07-17 16:51:32,474 INFO L226 Difference]: Without dead ends: 0 [2020-07-17 16:51:32,504 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 248 GetRequests, 160 SyntacticMatches, 8 SemanticMatches, 80 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1939 ImplicationChecksByTransitivity, 10.6s TimeCoverageRelationStatistics Valid=1065, Invalid=5577, Unknown=0, NotChecked=0, Total=6642 [2020-07-17 16:51:32,505 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-07-17 16:51:32,505 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-07-17 16:51:32,505 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-07-17 16:51:32,505 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-07-17 16:51:32,508 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 622 [2020-07-17 16:51:32,508 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-17 16:51:32,508 INFO L479 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-07-17 16:51:32,508 INFO L480 AbstractCegarLoop]: Interpolant automaton has 26 states. [2020-07-17 16:51:32,508 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-07-17 16:51:32,509 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-17 16:51:32,509 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2020-07-17 16:51:32,511 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-07-17 16:51:33,602 WARN L193 SmtUtils]: Spent 191.00 ms on a formula simplification. DAG size of input: 251 DAG size of output: 242 [2020-07-17 16:51:35,146 WARN L193 SmtUtils]: Spent 174.00 ms on a formula simplification. DAG size of input: 256 DAG size of output: 245 [2020-07-17 16:51:35,304 WARN L193 SmtUtils]: Spent 150.00 ms on a formula simplification. DAG size of input: 247 DAG size of output: 238 [2020-07-17 16:51:35,441 WARN L193 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 239 DAG size of output: 230 [2020-07-17 16:51:35,903 WARN L193 SmtUtils]: Spent 252.00 ms on a formula simplification. DAG size of input: 258 DAG size of output: 247 [2020-07-17 16:51:36,067 WARN L193 SmtUtils]: Spent 161.00 ms on a formula simplification. DAG size of input: 254 DAG size of output: 243 [2020-07-17 16:51:39,787 WARN L193 SmtUtils]: Spent 140.00 ms on a formula simplification. DAG size of input: 250 DAG size of output: 247 [2020-07-17 16:51:46,315 WARN L193 SmtUtils]: Spent 4.73 s on a formula simplification. DAG size of input: 1237 DAG size of output: 767 [2020-07-17 16:51:56,775 WARN L193 SmtUtils]: Spent 5.36 s on a formula simplification. DAG size of input: 1221 DAG size of output: 832 [2020-07-17 16:51:59,160 WARN L193 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 265 DAG size of output: 245 [2020-07-17 16:52:09,943 WARN L193 SmtUtils]: Spent 7.97 s on a formula simplification. DAG size of input: 1251 DAG size of output: 870 [2020-07-17 16:52:19,194 WARN L193 SmtUtils]: Spent 7.33 s on a formula simplification. DAG size of input: 1415 DAG size of output: 886 [2020-07-17 16:52:19,692 WARN L193 SmtUtils]: Spent 108.00 ms on a formula simplification. DAG size of input: 248 DAG size of output: 243 [2020-07-17 16:52:24,533 WARN L193 SmtUtils]: Spent 111.00 ms on a formula simplification. DAG size of input: 247 DAG size of output: 243 [2020-07-17 16:52:33,145 WARN L193 SmtUtils]: Spent 7.30 s on a formula simplification. DAG size of input: 1415 DAG size of output: 886 [2020-07-17 16:52:34,526 WARN L193 SmtUtils]: Spent 112.00 ms on a formula simplification. DAG size of input: 254 DAG size of output: 245 [2020-07-17 16:52:35,851 WARN L193 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 262 DAG size of output: 250 [2020-07-17 16:52:36,265 WARN L193 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 264 DAG size of output: 252 [2020-07-17 16:52:38,085 WARN L193 SmtUtils]: Spent 112.00 ms on a formula simplification. DAG size of input: 264 DAG size of output: 254 [2020-07-17 16:52:40,256 WARN L193 SmtUtils]: Spent 110.00 ms on a formula simplification. DAG size of input: 253 DAG size of output: 244 [2020-07-17 16:52:58,610 WARN L193 SmtUtils]: Spent 4.59 s on a formula simplification. DAG size of input: 1237 DAG size of output: 767 [2020-07-17 16:52:59,108 WARN L193 SmtUtils]: Spent 110.00 ms on a formula simplification. DAG size of input: 248 DAG size of output: 243 [2020-07-17 16:53:03,730 WARN L193 SmtUtils]: Spent 112.00 ms on a formula simplification. DAG size of input: 247 DAG size of output: 243 [2020-07-17 16:53:06,032 WARN L193 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 250 DAG size of output: 240 [2020-07-17 16:53:22,260 WARN L193 SmtUtils]: Spent 11.84 s on a formula simplification. DAG size of input: 1666 DAG size of output: 1048 [2020-07-17 16:53:26,895 WARN L193 SmtUtils]: Spent 4.63 s on a formula simplification. DAG size of input: 1237 DAG size of output: 767 [2020-07-17 16:53:32,379 WARN L193 SmtUtils]: Spent 4.61 s on a formula simplification. DAG size of input: 1237 DAG size of output: 767 [2020-07-17 16:53:44,966 WARN L193 SmtUtils]: Spent 110.00 ms on a formula simplification. DAG size of input: 248 DAG size of output: 243 [2020-07-17 16:53:51,405 WARN L193 SmtUtils]: Spent 110.00 ms on a formula simplification. DAG size of input: 247 DAG size of output: 243 [2020-07-17 16:53:51,562 WARN L193 SmtUtils]: Spent 111.00 ms on a formula simplification. DAG size of input: 247 DAG size of output: 243 [2020-07-17 16:54:00,007 WARN L193 SmtUtils]: Spent 150.00 ms on a formula simplification. DAG size of input: 253 DAG size of output: 246 [2020-07-17 16:54:04,061 WARN L193 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 250 DAG size of output: 240 [2020-07-17 16:54:04,889 WARN L193 SmtUtils]: Spent 131.00 ms on a formula simplification. DAG size of input: 252 DAG size of output: 245 [2020-07-17 16:54:11,240 WARN L193 SmtUtils]: Spent 4.57 s on a formula simplification. DAG size of input: 1237 DAG size of output: 767 [2020-07-17 16:54:26,063 WARN L193 SmtUtils]: Spent 11.78 s on a formula simplification. DAG size of input: 1666 DAG size of output: 1048 [2020-07-17 16:54:26,469 WARN L193 SmtUtils]: Spent 150.00 ms on a formula simplification. DAG size of input: 253 DAG size of output: 246 [2020-07-17 16:54:27,772 WARN L193 SmtUtils]: Spent 150.00 ms on a formula simplification. DAG size of input: 249 DAG size of output: 240 [2020-07-17 16:54:30,564 WARN L193 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 250 DAG size of output: 240 [2020-07-17 16:54:31,429 WARN L193 SmtUtils]: Spent 130.00 ms on a formula simplification. DAG size of input: 252 DAG size of output: 245 [2020-07-17 16:54:47,145 WARN L193 SmtUtils]: Spent 11.92 s on a formula simplification. DAG size of input: 1666 DAG size of output: 1048 [2020-07-17 16:54:59,114 WARN L193 SmtUtils]: Spent 11.97 s on a formula simplification. DAG size of input: 1666 DAG size of output: 1048 [2020-07-17 16:55:01,176 WARN L193 SmtUtils]: Spent 176.00 ms on a formula simplification. DAG size of input: 248 DAG size of output: 232 [2020-07-17 16:55:10,492 WARN L193 SmtUtils]: Spent 7.50 s on a formula simplification. DAG size of input: 1415 DAG size of output: 886 [2020-07-17 16:55:23,243 WARN L193 SmtUtils]: Spent 12.47 s on a formula simplification. DAG size of input: 1666 DAG size of output: 1048 [2020-07-17 16:55:32,885 WARN L193 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 250 DAG size of output: 240 [2020-07-17 16:55:34,859 WARN L193 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 250 DAG size of output: 240 [2020-07-17 16:55:34,992 WARN L193 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 250 DAG size of output: 240 [2020-07-17 16:55:54,335 WARN L193 SmtUtils]: Spent 7.21 s on a formula simplification. DAG size of input: 1259 DAG size of output: 823 [2020-07-17 16:55:58,996 WARN L193 SmtUtils]: Spent 4.66 s on a formula simplification. DAG size of input: 1237 DAG size of output: 767 [2020-07-17 16:56:06,519 WARN L193 SmtUtils]: Spent 7.52 s on a formula simplification. DAG size of input: 1415 DAG size of output: 886 [2020-07-17 16:56:12,132 WARN L193 SmtUtils]: Spent 148.00 ms on a formula simplification. DAG size of input: 282 DAG size of output: 250 [2020-07-17 16:56:12,535 WARN L193 SmtUtils]: Spent 146.00 ms on a formula simplification. DAG size of input: 280 DAG size of output: 248 [2020-07-17 16:56:12,916 WARN L193 SmtUtils]: Spent 146.00 ms on a formula simplification. DAG size of input: 280 DAG size of output: 248 [2020-07-17 16:56:13,481 WARN L193 SmtUtils]: Spent 146.00 ms on a formula simplification. DAG size of input: 282 DAG size of output: 250 [2020-07-17 16:56:13,957 WARN L193 SmtUtils]: Spent 145.00 ms on a formula simplification. DAG size of input: 280 DAG size of output: 248 [2020-07-17 16:56:14,508 WARN L193 SmtUtils]: Spent 146.00 ms on a formula simplification. DAG size of input: 282 DAG size of output: 250 [2020-07-17 16:56:14,891 WARN L193 SmtUtils]: Spent 145.00 ms on a formula simplification. DAG size of input: 280 DAG size of output: 248 [2020-07-17 16:56:15,273 WARN L193 SmtUtils]: Spent 150.00 ms on a formula simplification. DAG size of input: 282 DAG size of output: 250 [2020-07-17 16:56:15,830 WARN L193 SmtUtils]: Spent 145.00 ms on a formula simplification. DAG size of input: 280 DAG size of output: 248 [2020-07-17 16:56:16,351 WARN L193 SmtUtils]: Spent 177.00 ms on a formula simplification. DAG size of input: 280 DAG size of output: 248 [2020-07-17 16:56:17,069 WARN L193 SmtUtils]: Spent 150.00 ms on a formula simplification. DAG size of input: 282 DAG size of output: 250 [2020-07-17 16:56:17,326 WARN L193 SmtUtils]: Spent 146.00 ms on a formula simplification. DAG size of input: 282 DAG size of output: 250 [2020-07-17 16:56:34,131 WARN L193 SmtUtils]: Spent 11.82 s on a formula simplification. DAG size of input: 1666 DAG size of output: 1048 [2020-07-17 16:57:00,703 WARN L193 SmtUtils]: Spent 14.46 s on a formula simplification. DAG size of input: 1910 DAG size of output: 1275 [2020-07-17 16:57:23,640 WARN L193 SmtUtils]: Spent 112.00 ms on a formula simplification. DAG size of input: 248 DAG size of output: 243 [2020-07-17 16:57:27,147 WARN L193 SmtUtils]: Spent 110.00 ms on a formula simplification. DAG size of input: 247 DAG size of output: 243 [2020-07-17 16:57:35,904 WARN L193 SmtUtils]: Spent 7.34 s on a formula simplification. DAG size of input: 1415 DAG size of output: 886 [2020-07-17 16:57:50,300 WARN L193 SmtUtils]: Spent 11.78 s on a formula simplification. DAG size of input: 1666 DAG size of output: 1048 [2020-07-17 16:58:02,468 WARN L193 SmtUtils]: Spent 11.83 s on a formula simplification. DAG size of input: 1666 DAG size of output: 1048 [2020-07-17 16:58:11,297 WARN L193 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 250 DAG size of output: 240 [2020-07-17 16:58:11,402 WARN L193 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 250 DAG size of output: 240 [2020-07-17 16:58:11,846 WARN L193 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 248 DAG size of output: 234 [2020-07-17 16:58:12,194 WARN L193 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 250 DAG size of output: 240 [2020-07-17 16:58:12,329 WARN L193 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 250 DAG size of output: 240 [2020-07-17 16:58:14,742 WARN L193 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 254 DAG size of output: 245 [2020-07-17 16:58:16,045 WARN L193 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 262 DAG size of output: 250 [2020-07-17 16:58:16,460 WARN L193 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 264 DAG size of output: 252 [2020-07-17 16:58:17,032 WARN L193 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 262 DAG size of output: 250 [2020-07-17 16:58:18,276 WARN L193 SmtUtils]: Spent 113.00 ms on a formula simplification. DAG size of input: 264 DAG size of output: 254 [2020-07-17 16:58:20,394 WARN L193 SmtUtils]: Spent 108.00 ms on a formula simplification. DAG size of input: 253 DAG size of output: 244 [2020-07-17 16:58:29,102 WARN L193 SmtUtils]: Spent 6.22 s on a formula simplification. DAG size of input: 647 DAG size of output: 42 [2020-07-17 16:58:32,208 WARN L193 SmtUtils]: Spent 3.09 s on a formula simplification. DAG size of input: 359 DAG size of output: 44 [2020-07-17 16:58:40,646 WARN L193 SmtUtils]: Spent 8.41 s on a formula simplification. DAG size of input: 613 DAG size of output: 45 [2020-07-17 16:58:41,018 WARN L193 SmtUtils]: Spent 370.00 ms on a formula simplification. DAG size of input: 151 DAG size of output: 27 [2020-07-17 16:58:43,038 WARN L193 SmtUtils]: Spent 2.00 s on a formula simplification. DAG size of input: 316 DAG size of output: 42 [2020-07-17 16:58:45,033 WARN L193 SmtUtils]: Spent 1.98 s on a formula simplification. DAG size of input: 303 DAG size of output: 28 [2020-07-17 16:58:45,793 WARN L193 SmtUtils]: Spent 754.00 ms on a formula simplification. DAG size of input: 191 DAG size of output: 25 [2020-07-17 16:58:46,388 WARN L193 SmtUtils]: Spent 589.00 ms on a formula simplification. DAG size of input: 194 DAG size of output: 28 [2020-07-17 16:58:49,557 WARN L193 SmtUtils]: Spent 3.12 s on a formula simplification. DAG size of input: 365 DAG size of output: 47 [2020-07-17 16:58:53,920 WARN L193 SmtUtils]: Spent 4.32 s on a formula simplification. DAG size of input: 439 DAG size of output: 60 [2020-07-17 16:58:55,626 WARN L193 SmtUtils]: Spent 1.68 s on a formula simplification. DAG size of input: 291 DAG size of output: 36 [2020-07-17 16:59:14,620 WARN L193 SmtUtils]: Spent 18.99 s on a formula simplification. DAG size of input: 706 DAG size of output: 46 [2020-07-17 16:59:17,917 WARN L193 SmtUtils]: Spent 3.28 s on a formula simplification. DAG size of input: 355 DAG size of output: 37 [2020-07-17 16:59:21,191 WARN L193 SmtUtils]: Spent 3.26 s on a formula simplification. DAG size of input: 355 DAG size of output: 37 [2020-07-17 16:59:38,783 WARN L193 SmtUtils]: Spent 17.55 s on a formula simplification. DAG size of input: 699 DAG size of output: 58 [2020-07-17 16:59:39,198 WARN L193 SmtUtils]: Spent 319.00 ms on a formula simplification. DAG size of input: 338 DAG size of output: 1 [2020-07-17 16:59:58,220 WARN L193 SmtUtils]: Spent 19.01 s on a formula simplification. DAG size of input: 744 DAG size of output: 48 [2020-07-17 17:00:00,509 WARN L193 SmtUtils]: Spent 2.16 s on a formula simplification. DAG size of input: 603 DAG size of output: 1 [2020-07-17 17:00:00,987 WARN L193 SmtUtils]: Spent 467.00 ms on a formula simplification. DAG size of input: 312 DAG size of output: 1 [2020-07-17 17:00:20,362 WARN L193 SmtUtils]: Spent 19.37 s on a formula simplification. DAG size of input: 744 DAG size of output: 48 [2020-07-17 17:00:20,938 WARN L193 SmtUtils]: Spent 570.00 ms on a formula simplification. DAG size of input: 190 DAG size of output: 22 [2020-07-17 17:00:21,325 WARN L193 SmtUtils]: Spent 385.00 ms on a formula simplification. DAG size of input: 153 DAG size of output: 29 [2020-07-17 17:00:21,720 WARN L193 SmtUtils]: Spent 384.00 ms on a formula simplification. DAG size of input: 153 DAG size of output: 29 [2020-07-17 17:00:22,477 WARN L193 SmtUtils]: Spent 752.00 ms on a formula simplification. DAG size of input: 191 DAG size of output: 25 [2020-07-17 17:00:23,075 WARN L193 SmtUtils]: Spent 592.00 ms on a formula simplification. DAG size of input: 190 DAG size of output: 22 [2020-07-17 17:00:23,484 WARN L193 SmtUtils]: Spent 407.00 ms on a formula simplification. DAG size of input: 155 DAG size of output: 31 [2020-07-17 17:00:29,944 WARN L193 SmtUtils]: Spent 6.41 s on a formula simplification. DAG size of input: 647 DAG size of output: 45 [2020-07-17 17:00:32,477 WARN L193 SmtUtils]: Spent 2.52 s on a formula simplification. DAG size of input: 308 DAG size of output: 33 [2020-07-17 17:00:33,187 WARN L193 SmtUtils]: Spent 700.00 ms on a formula simplification. DAG size of input: 159 DAG size of output: 43 [2020-07-17 17:00:35,615 WARN L193 SmtUtils]: Spent 2.41 s on a formula simplification. DAG size of input: 339 DAG size of output: 40 [2020-07-17 17:00:38,466 WARN L193 SmtUtils]: Spent 2.83 s on a formula simplification. DAG size of input: 346 DAG size of output: 42 [2020-07-17 17:00:40,961 WARN L193 SmtUtils]: Spent 2.46 s on a formula simplification. DAG size of input: 407 DAG size of output: 54 [2020-07-17 17:00:41,624 WARN L193 SmtUtils]: Spent 653.00 ms on a formula simplification. DAG size of input: 279 DAG size of output: 22 [2020-07-17 17:00:42,023 WARN L193 SmtUtils]: Spent 397.00 ms on a formula simplification. DAG size of input: 151 DAG size of output: 27 [2020-07-17 17:00:45,326 WARN L193 SmtUtils]: Spent 3.28 s on a formula simplification. DAG size of input: 359 DAG size of output: 44 [2020-07-17 17:00:47,589 WARN L193 SmtUtils]: Spent 2.22 s on a formula simplification. DAG size of input: 246 DAG size of output: 40 [2020-07-17 17:00:48,654 WARN L193 SmtUtils]: Spent 1.04 s on a formula simplification. DAG size of input: 276 DAG size of output: 37 [2020-07-17 17:00:49,105 WARN L193 SmtUtils]: Spent 439.00 ms on a formula simplification. DAG size of input: 312 DAG size of output: 1 [2020-07-17 17:00:53,493 WARN L193 SmtUtils]: Spent 4.35 s on a formula simplification. DAG size of input: 441 DAG size of output: 59 [2020-07-17 17:00:54,856 WARN L193 SmtUtils]: Spent 1.35 s on a formula simplification. DAG size of input: 307 DAG size of output: 44 [2020-07-17 17:00:55,176 WARN L193 SmtUtils]: Spent 300.00 ms on a formula simplification. DAG size of input: 338 DAG size of output: 1 [2020-07-17 17:00:56,461 WARN L193 SmtUtils]: Spent 1.27 s on a formula simplification. DAG size of input: 275 DAG size of output: 40 [2020-07-17 17:00:56,647 WARN L193 SmtUtils]: Spent 176.00 ms on a formula simplification. DAG size of input: 240 DAG size of output: 1 [2020-07-17 17:01:05,244 WARN L193 SmtUtils]: Spent 8.59 s on a formula simplification. DAG size of input: 613 DAG size of output: 45