/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -tc config/AutomizerReach.xml -s config/svcomp-Reach-64bit-Automizer_Default.epf -i ../sv-benchmarks/c/eca-rers2012/Problem14_label51.c -------------------------------------------------------------------------------- This is Ultimate 0.2.1-bitabs-dcfa08f [2020-12-23 04:22:15,433 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-12-23 04:22:15,436 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-12-23 04:22:15,471 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-12-23 04:22:15,472 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-12-23 04:22:15,473 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-12-23 04:22:15,475 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-12-23 04:22:15,478 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-12-23 04:22:15,480 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-12-23 04:22:15,481 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-12-23 04:22:15,482 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-12-23 04:22:15,484 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-12-23 04:22:15,484 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-12-23 04:22:15,486 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-12-23 04:22:15,487 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-12-23 04:22:15,489 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-12-23 04:22:15,511 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-12-23 04:22:15,513 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-12-23 04:22:15,516 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-12-23 04:22:15,518 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-12-23 04:22:15,521 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-12-23 04:22:15,523 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-12-23 04:22:15,525 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-12-23 04:22:15,526 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-12-23 04:22:15,533 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2020-12-23 04:22:15,557 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-12-23 04:22:15,559 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-12-23 04:22:15,564 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-12-23 04:22:15,566 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2020-12-23 04:22:15,625 INFO L113 SettingsManager]: Loading preferences was successful [2020-12-23 04:22:15,626 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-12-23 04:22:15,630 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-12-23 04:22:15,630 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-12-23 04:22:15,630 INFO L138 SettingsManager]: * Use SBE=true [2020-12-23 04:22:15,632 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-12-23 04:22:15,632 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-12-23 04:22:15,632 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-12-23 04:22:15,633 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-12-23 04:22:15,633 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-12-23 04:22:15,634 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-12-23 04:22:15,635 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-12-23 04:22:15,635 INFO L138 SettingsManager]: * Use constant arrays=true [2020-12-23 04:22:15,635 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-12-23 04:22:15,635 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-12-23 04:22:15,636 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-12-23 04:22:15,636 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-12-23 04:22:15,636 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-12-23 04:22:15,637 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-12-23 04:22:15,637 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-12-23 04:22:15,637 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-12-23 04:22:15,637 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-12-23 04:22:15,638 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-12-23 04:22:15,638 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-12-23 04:22:15,638 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-12-23 04:22:15,638 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2020-12-23 04:22:16,038 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-12-23 04:22:16,088 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-12-23 04:22:16,091 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-12-23 04:22:16,093 INFO L271 PluginConnector]: Initializing CDTParser... [2020-12-23 04:22:16,094 INFO L275 PluginConnector]: CDTParser initialized [2020-12-23 04:22:16,095 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/eca-rers2012/Problem14_label51.c [2020-12-23 04:22:16,183 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/data/4803560df/e0abb426ce144cf395088e0af7397905/FLAG7b2ae9e6f [2020-12-23 04:22:16,895 INFO L306 CDTParser]: Found 1 translation units. [2020-12-23 04:22:16,896 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-bitabs/releaseScripts/default/sv-benchmarks/c/eca-rers2012/Problem14_label51.c [2020-12-23 04:22:16,924 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/data/4803560df/e0abb426ce144cf395088e0af7397905/FLAG7b2ae9e6f [2020-12-23 04:22:17,122 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/data/4803560df/e0abb426ce144cf395088e0af7397905 [2020-12-23 04:22:17,128 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-12-23 04:22:17,132 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-12-23 04:22:17,136 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-12-23 04:22:17,136 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-12-23 04:22:17,140 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-12-23 04:22:17,142 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.12 04:22:17" (1/1) ... [2020-12-23 04:22:17,144 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2701a03a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 04:22:17, skipping insertion in model container [2020-12-23 04:22:17,144 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.12 04:22:17" (1/1) ... [2020-12-23 04:22:17,156 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-12-23 04:22:17,234 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-12-23 04:22:17,438 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate-bitabs/releaseScripts/default/sv-benchmarks/c/eca-rers2012/Problem14_label51.c[3722,3735] left hand side expression in assignment: lhs: VariableLHS[~a12~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~a15~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~a21~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~a15~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~a21~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~a12~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~a15~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~a21~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~a12~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~a15~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~a21~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~a12~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~a15~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~a21~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~a12~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~a15~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~a21~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~a15~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~a21~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~a12~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~a21~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~a12~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~a15~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~a21~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~a12~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~a15~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~a21~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~a21~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~a15~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~a21~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~a21~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~a12~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~a15~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~a21~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~a12~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~a24~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~a15~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~a21~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~a15~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~a21~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~a12~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~a15~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~a21~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~a12~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~a15~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~a21~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~a15~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~a21~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~a12~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~a15~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~a21~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~a15~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~a21~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~a12~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~a15~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~a21~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~a15~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~a21~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~a12~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~a15~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~a21~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~a12~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~a15~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~a21~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~a15~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~a21~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~a12~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~a24~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~a15~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~a21~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~a12~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~a15~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~a21~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~a15~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~a21~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~a12~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~a15~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~a21~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~a15~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~a21~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~a12~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~a15~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~a21~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~a12~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~a15~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~a21~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~a12~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~a15~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~a21~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~a12~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~a15~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~a21~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~a15~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~a21~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~a12~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~a15~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~a21~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~a15~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~a21~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~a12~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~a15~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~a21~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~a15~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~a21~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~a12~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~a21~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~a21~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~a12~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~a15~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~a21~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~a12~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~a24~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~a15~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~a21~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~a12~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~a21~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~a12~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~a15~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~a21~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~a12~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~a15~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~a21~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~a12~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~a15~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~a21~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~a21~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~a21~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~a12~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~a15~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~a21~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~a15~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~a21~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~a12~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~a15~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~a21~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~a15~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~a21~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~a12~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~a15~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~a21~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~a12~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~a15~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~a21~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~a12~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~a21~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~a12~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~a15~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~a21~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~a12~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~a21~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~a12~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~a15~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~a21~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~a12~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~a24~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~a15~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~a21~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~a21~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~a12~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~a15~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~a21~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~a12~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~a15~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~a21~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~a12~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~a15~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~a21~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~a15~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~a21~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~a12~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~a15~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~a21~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~a12~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~a15~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~a21~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~a12~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~a15~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~a21~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~a12~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~a15~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~a21~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~a12~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~a21~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~a12~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~a15~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~a21~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~a12~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~a15~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~a21~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~a12~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~a15~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~a21~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~a15~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~a21~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~a15~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~a21~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~a12~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~a15~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~a21~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~a12~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~a15~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~a21~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~a12~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~a15~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~a21~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~a12~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~a15~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~a21~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~a12~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~a15~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~a12~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~a15~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~a21~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~a12~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~a15~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~a21~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~a12~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~a15~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~a21~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~a12~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~a15~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~a21~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~a12~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~a15~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~a21~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~a12~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~a15~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~a21~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~a15~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~a21~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~a12~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~a21~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~a12~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~a15~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~a21~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~a15~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~a21~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~a12~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~a21~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~a12~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~a15~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~a21~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~a12~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~a15~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~a21~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~a12~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~a24~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~a15~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~a21~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~a12~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~a15~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~a21~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~a12~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~a15~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~a21~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~a12~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~a15~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~a21~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~a12~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~a15~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~a21~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~a15~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~a21~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~a12~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~a15~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~a21~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~a12~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~a24~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~a15~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~a21~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~a12~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~a21~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~a12~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~a15~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~a21~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~a15~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~a21~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~a12~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~a15~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~a21~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~a12~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~a21~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~a12~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~a15~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~a21~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~a12~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~a15~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~a21~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~a21~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~a12~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~a15~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~a21~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~a21~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~input~0,] left hand side expression in assignment: lhs: VariableLHS[~output~0,] [2020-12-23 04:22:17,762 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-23 04:22:17,773 INFO L203 MainTranslator]: Completed pre-run [2020-12-23 04:22:17,798 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate-bitabs/releaseScripts/default/sv-benchmarks/c/eca-rers2012/Problem14_label51.c[3722,3735] left hand side expression in assignment: lhs: VariableLHS[~a12~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~a15~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~a21~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~a15~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~a21~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~a12~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~a15~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~a21~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~a12~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~a15~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~a21~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~a12~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~a15~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~a21~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~a12~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~a15~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~a21~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~a15~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~a21~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~a12~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~a21~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~a12~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~a15~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~a21~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~a12~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~a15~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~a21~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~a21~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~a15~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~a21~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~a21~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~a12~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~a15~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~a21~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~a12~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~a24~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~a15~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~a21~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~a15~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~a21~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~a12~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~a15~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~a21~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~a12~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~a15~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~a21~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~a15~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~a21~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~a12~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~a15~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~a21~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~a15~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~a21~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~a12~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~a15~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~a21~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~a15~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~a21~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~a12~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~a15~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~a21~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~a12~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~a15~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~a21~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~a15~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~a21~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~a12~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~a24~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~a15~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~a21~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~a12~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~a15~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~a21~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~a15~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~a21~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~a12~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~a15~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~a21~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~a15~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~a21~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~a12~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~a15~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~a21~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~a12~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~a15~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~a21~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~a12~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~a15~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~a21~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~a12~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~a15~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~a21~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~a15~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~a21~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~a12~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~a15~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~a21~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~a15~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~a21~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~a12~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~a15~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~a21~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~a15~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~a21~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~a12~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~a21~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~a21~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~a12~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~a15~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~a21~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~a12~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~a24~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~a15~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~a21~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~a12~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~a21~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~a12~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~a15~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~a21~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~a12~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~a15~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~a21~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~a12~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~a15~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~a21~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~a21~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~a21~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~a12~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~a15~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~a21~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~a15~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~a21~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~a12~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~a15~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~a21~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~a15~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~a21~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~a12~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~a15~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~a21~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~a12~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~a15~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~a21~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~a12~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~a21~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~a12~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~a15~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~a21~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~a12~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~a21~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~a12~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~a15~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~a21~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~a12~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~a24~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~a15~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~a21~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~a21~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~a12~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~a15~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~a21~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~a12~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~a15~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~a21~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~a12~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~a15~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~a21~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~a15~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~a21~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~a12~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~a15~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~a21~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~a12~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~a15~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~a21~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~a12~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~a15~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~a21~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~a12~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~a15~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~a21~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~a12~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~a21~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~a12~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~a15~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~a21~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~a12~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~a15~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~a21~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~a12~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~a15~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~a21~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~a15~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~a21~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~a15~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~a21~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~a12~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~a15~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~a21~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~a12~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~a15~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~a21~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~a12~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~a15~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~a21~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~a12~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~a15~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~a21~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~a12~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~a15~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~a12~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~a15~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~a21~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~a12~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~a15~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~a21~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~a12~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~a15~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~a21~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~a12~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~a15~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~a21~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~a12~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~a15~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~a21~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~a12~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~a15~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~a21~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~a15~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~a21~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~a12~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~a21~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~a12~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~a15~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~a21~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~a15~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~a21~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~a12~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~a21~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~a12~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~a15~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~a21~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~a12~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~a15~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~a21~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~a12~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~a24~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~a15~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~a21~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~a12~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~a15~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~a21~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~a12~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~a15~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~a21~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~a12~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~a15~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~a21~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~a12~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~a15~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~a21~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~a15~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~a21~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~a12~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~a15~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~a21~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~a12~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~a24~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~a15~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~a21~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~a12~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~a21~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~a12~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~a15~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~a21~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~a15~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~a21~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~a12~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~a15~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~a21~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~a12~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~a21~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~a12~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~a15~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~a21~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~a12~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~a15~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~a21~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~a21~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~a12~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~a15~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~a21~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~a21~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~input~0,] left hand side expression in assignment: lhs: VariableLHS[~output~0,] [2020-12-23 04:22:18,122 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-23 04:22:18,143 INFO L208 MainTranslator]: Completed translation [2020-12-23 04:22:18,143 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 04:22:18 WrapperNode [2020-12-23 04:22:18,143 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-12-23 04:22:18,146 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-12-23 04:22:18,146 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-12-23 04:22:18,146 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-12-23 04:22:18,154 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 04:22:18" (1/1) ... [2020-12-23 04:22:18,192 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 04:22:18" (1/1) ... [2020-12-23 04:22:18,286 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-12-23 04:22:18,287 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-12-23 04:22:18,287 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-12-23 04:22:18,287 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-12-23 04:22:18,297 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 04:22:18" (1/1) ... [2020-12-23 04:22:18,297 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 04:22:18" (1/1) ... [2020-12-23 04:22:18,304 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 04:22:18" (1/1) ... [2020-12-23 04:22:18,305 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 04:22:18" (1/1) ... [2020-12-23 04:22:18,340 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 04:22:18" (1/1) ... [2020-12-23 04:22:18,353 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 04:22:18" (1/1) ... [2020-12-23 04:22:18,367 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 04:22:18" (1/1) ... [2020-12-23 04:22:18,396 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-12-23 04:22:18,397 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-12-23 04:22:18,397 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-12-23 04:22:18,398 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-12-23 04:22:18,398 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 04:22:18" (1/1) ... No working directory specified, using /storage/repos/ultimate-bitabs/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 [2020-12-23 04:22:18,521 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-12-23 04:22:18,522 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-12-23 04:22:18,523 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-12-23 04:22:18,523 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-12-23 04:22:20,166 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-12-23 04:22:20,166 INFO L299 CfgBuilder]: Removed 7 assume(true) statements. [2020-12-23 04:22:20,168 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.12 04:22:20 BoogieIcfgContainer [2020-12-23 04:22:20,169 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-12-23 04:22:20,170 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-12-23 04:22:20,171 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-12-23 04:22:20,174 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-12-23 04:22:20,175 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.12 04:22:17" (1/3) ... [2020-12-23 04:22:20,176 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@35547b49 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.12 04:22:20, skipping insertion in model container [2020-12-23 04:22:20,176 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 04:22:18" (2/3) ... [2020-12-23 04:22:20,176 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@35547b49 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.12 04:22:20, skipping insertion in model container [2020-12-23 04:22:20,177 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.12 04:22:20" (3/3) ... [2020-12-23 04:22:20,179 INFO L111 eAbstractionObserver]: Analyzing ICFG Problem14_label51.c [2020-12-23 04:22:20,186 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-12-23 04:22:20,193 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-12-23 04:22:20,214 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-12-23 04:22:20,247 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-12-23 04:22:20,247 INFO L378 AbstractCegarLoop]: Hoare is true [2020-12-23 04:22:20,247 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-12-23 04:22:20,247 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-12-23 04:22:20,248 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-12-23 04:22:20,248 INFO L382 AbstractCegarLoop]: Difference is false [2020-12-23 04:22:20,248 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-12-23 04:22:20,248 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-12-23 04:22:20,271 INFO L276 IsEmpty]: Start isEmpty. Operand 245 states. [2020-12-23 04:22:20,279 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2020-12-23 04:22:20,279 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 04:22:20,280 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-23 04:22:20,281 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-23 04:22:20,287 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 04:22:20,287 INFO L82 PathProgramCache]: Analyzing trace with hash -596708735, now seen corresponding path program 1 times [2020-12-23 04:22:20,298 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 04:22:20,299 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2004915381] [2020-12-23 04:22:20,299 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 04:22:20,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 04:22:20,607 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-23 04:22:20,608 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2004915381] [2020-12-23 04:22:20,609 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-23 04:22:20,609 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-12-23 04:22:20,610 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1423607454] [2020-12-23 04:22:20,616 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-23 04:22:20,617 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 04:22:20,636 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-23 04:22:20,638 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-23 04:22:20,641 INFO L87 Difference]: Start difference. First operand 245 states. Second operand 3 states. [2020-12-23 04:22:22,027 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 04:22:22,028 INFO L93 Difference]: Finished difference Result 685 states and 1216 transitions. [2020-12-23 04:22:22,028 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-23 04:22:22,030 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 35 [2020-12-23 04:22:22,030 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 04:22:22,047 INFO L225 Difference]: With dead ends: 685 [2020-12-23 04:22:22,047 INFO L226 Difference]: Without dead ends: 360 [2020-12-23 04:22:22,052 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-23 04:22:22,072 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 360 states. [2020-12-23 04:22:22,121 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 360 to 360. [2020-12-23 04:22:22,122 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 360 states. [2020-12-23 04:22:22,124 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 360 states to 360 states and 510 transitions. [2020-12-23 04:22:22,125 INFO L78 Accepts]: Start accepts. Automaton has 360 states and 510 transitions. Word has length 35 [2020-12-23 04:22:22,126 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 04:22:22,126 INFO L481 AbstractCegarLoop]: Abstraction has 360 states and 510 transitions. [2020-12-23 04:22:22,126 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-23 04:22:22,126 INFO L276 IsEmpty]: Start isEmpty. Operand 360 states and 510 transitions. [2020-12-23 04:22:22,131 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2020-12-23 04:22:22,131 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 04:22:22,131 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-23 04:22:22,132 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-12-23 04:22:22,132 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-23 04:22:22,133 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 04:22:22,133 INFO L82 PathProgramCache]: Analyzing trace with hash 183125839, now seen corresponding path program 1 times [2020-12-23 04:22:22,133 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 04:22:22,133 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1341636036] [2020-12-23 04:22:22,134 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 04:22:22,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 04:22:22,462 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 32 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-23 04:22:22,463 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1341636036] [2020-12-23 04:22:22,463 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-23 04:22:22,463 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-23 04:22:22,464 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [79276639] [2020-12-23 04:22:22,467 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-12-23 04:22:22,467 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 04:22:22,468 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-12-23 04:22:22,469 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-12-23 04:22:22,469 INFO L87 Difference]: Start difference. First operand 360 states and 510 transitions. Second operand 4 states. [2020-12-23 04:22:24,041 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 04:22:24,042 INFO L93 Difference]: Finished difference Result 1074 states and 1446 transitions. [2020-12-23 04:22:24,043 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-12-23 04:22:24,043 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 114 [2020-12-23 04:22:24,044 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 04:22:24,050 INFO L225 Difference]: With dead ends: 1074 [2020-12-23 04:22:24,050 INFO L226 Difference]: Without dead ends: 716 [2020-12-23 04:22:24,053 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-12-23 04:22:24,054 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 716 states. [2020-12-23 04:22:24,094 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 716 to 716. [2020-12-23 04:22:24,095 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 716 states. [2020-12-23 04:22:24,098 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 716 states to 716 states and 902 transitions. [2020-12-23 04:22:24,098 INFO L78 Accepts]: Start accepts. Automaton has 716 states and 902 transitions. Word has length 114 [2020-12-23 04:22:24,099 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 04:22:24,099 INFO L481 AbstractCegarLoop]: Abstraction has 716 states and 902 transitions. [2020-12-23 04:22:24,099 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-12-23 04:22:24,099 INFO L276 IsEmpty]: Start isEmpty. Operand 716 states and 902 transitions. [2020-12-23 04:22:24,106 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 141 [2020-12-23 04:22:24,106 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 04:22:24,106 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-23 04:22:24,107 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-12-23 04:22:24,107 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-23 04:22:24,108 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 04:22:24,108 INFO L82 PathProgramCache]: Analyzing trace with hash -1801900176, now seen corresponding path program 1 times [2020-12-23 04:22:24,108 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 04:22:24,108 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1826481283] [2020-12-23 04:22:24,109 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 04:22:24,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 04:22:24,283 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 32 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-23 04:22:24,283 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1826481283] [2020-12-23 04:22:24,283 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-23 04:22:24,284 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-23 04:22:24,284 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1209131398] [2020-12-23 04:22:24,286 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-23 04:22:24,286 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 04:22:24,298 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-23 04:22:24,298 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-23 04:22:24,298 INFO L87 Difference]: Start difference. First operand 716 states and 902 transitions. Second operand 3 states. [2020-12-23 04:22:25,422 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 04:22:25,423 INFO L93 Difference]: Finished difference Result 1964 states and 2499 transitions. [2020-12-23 04:22:25,424 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-23 04:22:25,424 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 140 [2020-12-23 04:22:25,425 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 04:22:25,432 INFO L225 Difference]: With dead ends: 1964 [2020-12-23 04:22:25,432 INFO L226 Difference]: Without dead ends: 1250 [2020-12-23 04:22:25,434 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-23 04:22:25,436 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1250 states. [2020-12-23 04:22:25,476 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1250 to 1250. [2020-12-23 04:22:25,476 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1250 states. [2020-12-23 04:22:25,481 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1250 states to 1250 states and 1544 transitions. [2020-12-23 04:22:25,481 INFO L78 Accepts]: Start accepts. Automaton has 1250 states and 1544 transitions. Word has length 140 [2020-12-23 04:22:25,483 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 04:22:25,483 INFO L481 AbstractCegarLoop]: Abstraction has 1250 states and 1544 transitions. [2020-12-23 04:22:25,484 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-23 04:22:25,484 INFO L276 IsEmpty]: Start isEmpty. Operand 1250 states and 1544 transitions. [2020-12-23 04:22:25,507 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 195 [2020-12-23 04:22:25,508 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 04:22:25,508 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1] [2020-12-23 04:22:25,508 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-12-23 04:22:25,509 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-23 04:22:25,512 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 04:22:25,513 INFO L82 PathProgramCache]: Analyzing trace with hash 689274588, now seen corresponding path program 1 times [2020-12-23 04:22:25,513 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 04:22:25,513 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [134298567] [2020-12-23 04:22:25,513 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 04:22:25,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 04:22:25,912 INFO L134 CoverageAnalysis]: Checked inductivity of 143 backedges. 139 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2020-12-23 04:22:25,913 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [134298567] [2020-12-23 04:22:25,913 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-23 04:22:25,913 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-23 04:22:25,914 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [609319120] [2020-12-23 04:22:25,915 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-12-23 04:22:25,915 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 04:22:25,920 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-12-23 04:22:25,921 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-12-23 04:22:25,922 INFO L87 Difference]: Start difference. First operand 1250 states and 1544 transitions. Second operand 4 states. [2020-12-23 04:22:26,981 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 04:22:26,982 INFO L93 Difference]: Finished difference Result 2705 states and 3353 transitions. [2020-12-23 04:22:26,982 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-12-23 04:22:26,983 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 194 [2020-12-23 04:22:26,983 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 04:22:26,991 INFO L225 Difference]: With dead ends: 2705 [2020-12-23 04:22:26,992 INFO L226 Difference]: Without dead ends: 1606 [2020-12-23 04:22:26,994 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-12-23 04:22:26,996 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1606 states. [2020-12-23 04:22:27,029 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1606 to 1606. [2020-12-23 04:22:27,029 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1606 states. [2020-12-23 04:22:27,035 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1606 states to 1606 states and 1801 transitions. [2020-12-23 04:22:27,035 INFO L78 Accepts]: Start accepts. Automaton has 1606 states and 1801 transitions. Word has length 194 [2020-12-23 04:22:27,036 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 04:22:27,036 INFO L481 AbstractCegarLoop]: Abstraction has 1606 states and 1801 transitions. [2020-12-23 04:22:27,036 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-12-23 04:22:27,036 INFO L276 IsEmpty]: Start isEmpty. Operand 1606 states and 1801 transitions. [2020-12-23 04:22:27,041 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 322 [2020-12-23 04:22:27,042 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 04:22:27,042 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-23 04:22:27,043 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-12-23 04:22:27,043 INFO L429 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-23 04:22:27,043 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 04:22:27,043 INFO L82 PathProgramCache]: Analyzing trace with hash 1212960330, now seen corresponding path program 1 times [2020-12-23 04:22:27,044 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 04:22:27,044 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1970026558] [2020-12-23 04:22:27,044 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 04:22:27,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 04:22:27,696 INFO L134 CoverageAnalysis]: Checked inductivity of 351 backedges. 146 proven. 130 refuted. 0 times theorem prover too weak. 75 trivial. 0 not checked. [2020-12-23 04:22:27,696 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1970026558] [2020-12-23 04:22:27,697 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [945803294] [2020-12-23 04:22:27,697 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-23 04:22:27,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 04:22:27,871 INFO L263 TraceCheckSpWp]: Trace formula consists of 452 conjuncts, 2 conjunts are in the unsatisfiable core [2020-12-23 04:22:27,904 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-23 04:22:28,457 INFO L134 CoverageAnalysis]: Checked inductivity of 351 backedges. 98 proven. 0 refuted. 0 times theorem prover too weak. 253 trivial. 0 not checked. [2020-12-23 04:22:28,458 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2020-12-23 04:22:28,459 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 6 [2020-12-23 04:22:28,459 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [792814123] [2020-12-23 04:22:28,460 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-23 04:22:28,461 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 04:22:28,462 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-23 04:22:28,462 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2020-12-23 04:22:28,463 INFO L87 Difference]: Start difference. First operand 1606 states and 1801 transitions. Second operand 3 states. [2020-12-23 04:22:29,288 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 04:22:29,289 INFO L93 Difference]: Finished difference Result 3388 states and 3901 transitions. [2020-12-23 04:22:29,289 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-23 04:22:29,290 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 321 [2020-12-23 04:22:29,292 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 04:22:29,301 INFO L225 Difference]: With dead ends: 3388 [2020-12-23 04:22:29,302 INFO L226 Difference]: Without dead ends: 1962 [2020-12-23 04:22:29,304 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 324 GetRequests, 320 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2020-12-23 04:22:29,307 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1962 states. [2020-12-23 04:22:29,344 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1962 to 1962. [2020-12-23 04:22:29,344 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1962 states. [2020-12-23 04:22:29,351 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1962 states to 1962 states and 2220 transitions. [2020-12-23 04:22:29,351 INFO L78 Accepts]: Start accepts. Automaton has 1962 states and 2220 transitions. Word has length 321 [2020-12-23 04:22:29,352 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 04:22:29,352 INFO L481 AbstractCegarLoop]: Abstraction has 1962 states and 2220 transitions. [2020-12-23 04:22:29,352 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-23 04:22:29,353 INFO L276 IsEmpty]: Start isEmpty. Operand 1962 states and 2220 transitions. [2020-12-23 04:22:29,358 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 326 [2020-12-23 04:22:29,358 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 04:22:29,358 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-23 04:22:29,572 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,2 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-23 04:22:29,573 INFO L429 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-23 04:22:29,574 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 04:22:29,574 INFO L82 PathProgramCache]: Analyzing trace with hash 1895165588, now seen corresponding path program 1 times [2020-12-23 04:22:29,575 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 04:22:29,575 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [434210897] [2020-12-23 04:22:29,575 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 04:22:29,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 04:22:30,034 INFO L134 CoverageAnalysis]: Checked inductivity of 359 backedges. 255 proven. 0 refuted. 0 times theorem prover too weak. 104 trivial. 0 not checked. [2020-12-23 04:22:30,035 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [434210897] [2020-12-23 04:22:30,036 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-23 04:22:30,036 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-23 04:22:30,037 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1971757564] [2020-12-23 04:22:30,038 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-23 04:22:30,038 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 04:22:30,043 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-23 04:22:30,043 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-23 04:22:30,044 INFO L87 Difference]: Start difference. First operand 1962 states and 2220 transitions. Second operand 3 states. [2020-12-23 04:22:30,877 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 04:22:30,878 INFO L93 Difference]: Finished difference Result 4100 states and 4689 transitions. [2020-12-23 04:22:30,878 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-23 04:22:30,879 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 325 [2020-12-23 04:22:30,880 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 04:22:30,890 INFO L225 Difference]: With dead ends: 4100 [2020-12-23 04:22:30,890 INFO L226 Difference]: Without dead ends: 2318 [2020-12-23 04:22:30,894 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-23 04:22:30,897 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2318 states. [2020-12-23 04:22:30,939 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2318 to 2318. [2020-12-23 04:22:30,939 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2318 states. [2020-12-23 04:22:30,947 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2318 states to 2318 states and 2613 transitions. [2020-12-23 04:22:30,948 INFO L78 Accepts]: Start accepts. Automaton has 2318 states and 2613 transitions. Word has length 325 [2020-12-23 04:22:30,948 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 04:22:30,949 INFO L481 AbstractCegarLoop]: Abstraction has 2318 states and 2613 transitions. [2020-12-23 04:22:30,952 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-23 04:22:30,953 INFO L276 IsEmpty]: Start isEmpty. Operand 2318 states and 2613 transitions. [2020-12-23 04:22:30,958 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 329 [2020-12-23 04:22:30,959 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 04:22:30,960 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-23 04:22:30,960 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-12-23 04:22:30,961 INFO L429 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-23 04:22:30,968 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 04:22:30,969 INFO L82 PathProgramCache]: Analyzing trace with hash 1863836660, now seen corresponding path program 1 times [2020-12-23 04:22:30,969 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 04:22:30,970 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [161438277] [2020-12-23 04:22:30,970 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 04:22:31,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 04:22:31,617 INFO L134 CoverageAnalysis]: Checked inductivity of 365 backedges. 153 proven. 130 refuted. 0 times theorem prover too weak. 82 trivial. 0 not checked. [2020-12-23 04:22:31,617 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [161438277] [2020-12-23 04:22:31,617 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1749629351] [2020-12-23 04:22:31,617 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-23 04:22:31,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 04:22:31,765 INFO L263 TraceCheckSpWp]: Trace formula consists of 463 conjuncts, 2 conjunts are in the unsatisfiable core [2020-12-23 04:22:31,778 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-23 04:22:32,254 INFO L134 CoverageAnalysis]: Checked inductivity of 365 backedges. 98 proven. 0 refuted. 0 times theorem prover too weak. 267 trivial. 0 not checked. [2020-12-23 04:22:32,255 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2020-12-23 04:22:32,255 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [4] total 5 [2020-12-23 04:22:32,256 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [326823936] [2020-12-23 04:22:32,257 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-23 04:22:32,257 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 04:22:32,258 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-23 04:22:32,258 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2020-12-23 04:22:32,259 INFO L87 Difference]: Start difference. First operand 2318 states and 2613 transitions. Second operand 3 states. [2020-12-23 04:22:33,054 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 04:22:33,054 INFO L93 Difference]: Finished difference Result 4990 states and 5718 transitions. [2020-12-23 04:22:33,055 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-23 04:22:33,055 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 328 [2020-12-23 04:22:33,056 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 04:22:33,070 INFO L225 Difference]: With dead ends: 4990 [2020-12-23 04:22:33,071 INFO L226 Difference]: Without dead ends: 2852 [2020-12-23 04:22:33,075 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 331 GetRequests, 327 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2020-12-23 04:22:33,080 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2852 states. [2020-12-23 04:22:33,131 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2852 to 2674. [2020-12-23 04:22:33,131 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2674 states. [2020-12-23 04:22:33,139 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2674 states to 2674 states and 2974 transitions. [2020-12-23 04:22:33,140 INFO L78 Accepts]: Start accepts. Automaton has 2674 states and 2974 transitions. Word has length 328 [2020-12-23 04:22:33,140 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 04:22:33,140 INFO L481 AbstractCegarLoop]: Abstraction has 2674 states and 2974 transitions. [2020-12-23 04:22:33,140 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-23 04:22:33,141 INFO L276 IsEmpty]: Start isEmpty. Operand 2674 states and 2974 transitions. [2020-12-23 04:22:33,146 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 353 [2020-12-23 04:22:33,147 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 04:22:33,147 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1] [2020-12-23 04:22:33,379 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,3 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-23 04:22:33,380 INFO L429 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-23 04:22:33,381 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 04:22:33,381 INFO L82 PathProgramCache]: Analyzing trace with hash 1586740272, now seen corresponding path program 1 times [2020-12-23 04:22:33,382 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 04:22:33,383 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1092879528] [2020-12-23 04:22:33,383 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 04:22:33,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 04:22:33,661 INFO L134 CoverageAnalysis]: Checked inductivity of 412 backedges. 98 proven. 0 refuted. 0 times theorem prover too weak. 314 trivial. 0 not checked. [2020-12-23 04:22:33,662 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1092879528] [2020-12-23 04:22:33,662 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-23 04:22:33,662 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-23 04:22:33,663 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1516756420] [2020-12-23 04:22:33,664 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-23 04:22:33,665 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 04:22:33,666 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-23 04:22:33,670 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-23 04:22:33,670 INFO L87 Difference]: Start difference. First operand 2674 states and 2974 transitions. Second operand 3 states. [2020-12-23 04:22:34,499 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 04:22:34,499 INFO L93 Difference]: Finished difference Result 5702 states and 6438 transitions. [2020-12-23 04:22:34,500 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-23 04:22:34,500 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 352 [2020-12-23 04:22:34,503 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 04:22:34,520 INFO L225 Difference]: With dead ends: 5702 [2020-12-23 04:22:34,520 INFO L226 Difference]: Without dead ends: 3208 [2020-12-23 04:22:34,525 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-23 04:22:34,530 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3208 states. [2020-12-23 04:22:34,586 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3208 to 2852. [2020-12-23 04:22:34,586 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2852 states. [2020-12-23 04:22:34,594 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2852 states to 2852 states and 3183 transitions. [2020-12-23 04:22:34,594 INFO L78 Accepts]: Start accepts. Automaton has 2852 states and 3183 transitions. Word has length 352 [2020-12-23 04:22:34,595 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 04:22:34,595 INFO L481 AbstractCegarLoop]: Abstraction has 2852 states and 3183 transitions. [2020-12-23 04:22:34,595 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-23 04:22:34,595 INFO L276 IsEmpty]: Start isEmpty. Operand 2852 states and 3183 transitions. [2020-12-23 04:22:34,602 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 360 [2020-12-23 04:22:34,602 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 04:22:34,603 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-23 04:22:34,603 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-12-23 04:22:34,603 INFO L429 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-23 04:22:34,603 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 04:22:34,604 INFO L82 PathProgramCache]: Analyzing trace with hash 1378867977, now seen corresponding path program 1 times [2020-12-23 04:22:34,604 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 04:22:34,604 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [129113328] [2020-12-23 04:22:34,604 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 04:22:34,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 04:22:34,852 INFO L134 CoverageAnalysis]: Checked inductivity of 412 backedges. 98 proven. 0 refuted. 0 times theorem prover too weak. 314 trivial. 0 not checked. [2020-12-23 04:22:34,852 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [129113328] [2020-12-23 04:22:34,853 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-23 04:22:34,853 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-23 04:22:34,853 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1085067765] [2020-12-23 04:22:34,854 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-23 04:22:34,854 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 04:22:34,855 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-23 04:22:34,855 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-23 04:22:34,855 INFO L87 Difference]: Start difference. First operand 2852 states and 3183 transitions. Second operand 3 states. [2020-12-23 04:22:35,710 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 04:22:35,711 INFO L93 Difference]: Finished difference Result 6236 states and 7044 transitions. [2020-12-23 04:22:35,711 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-23 04:22:35,711 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 359 [2020-12-23 04:22:35,713 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 04:22:35,731 INFO L225 Difference]: With dead ends: 6236 [2020-12-23 04:22:35,732 INFO L226 Difference]: Without dead ends: 3564 [2020-12-23 04:22:35,737 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-23 04:22:35,742 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3564 states. [2020-12-23 04:22:35,807 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3564 to 3564. [2020-12-23 04:22:35,807 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3564 states. [2020-12-23 04:22:35,816 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3564 states to 3564 states and 3992 transitions. [2020-12-23 04:22:35,816 INFO L78 Accepts]: Start accepts. Automaton has 3564 states and 3992 transitions. Word has length 359 [2020-12-23 04:22:35,817 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 04:22:35,817 INFO L481 AbstractCegarLoop]: Abstraction has 3564 states and 3992 transitions. [2020-12-23 04:22:35,817 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-23 04:22:35,817 INFO L276 IsEmpty]: Start isEmpty. Operand 3564 states and 3992 transitions. [2020-12-23 04:22:35,830 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 515 [2020-12-23 04:22:35,831 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 04:22:35,831 INFO L422 BasicCegarLoop]: trace histogram [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, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 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] [2020-12-23 04:22:35,832 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-12-23 04:22:35,832 INFO L429 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-23 04:22:35,832 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 04:22:35,832 INFO L82 PathProgramCache]: Analyzing trace with hash -845400379, now seen corresponding path program 1 times [2020-12-23 04:22:35,833 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 04:22:35,833 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1508066113] [2020-12-23 04:22:35,833 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 04:22:35,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 04:22:36,439 INFO L134 CoverageAnalysis]: Checked inductivity of 768 backedges. 0 proven. 64 refuted. 0 times theorem prover too weak. 704 trivial. 0 not checked. [2020-12-23 04:22:36,439 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1508066113] [2020-12-23 04:22:36,439 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [402464977] [2020-12-23 04:22:36,439 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-23 04:22:36,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 04:22:36,612 INFO L263 TraceCheckSpWp]: Trace formula consists of 671 conjuncts, 2 conjunts are in the unsatisfiable core [2020-12-23 04:22:36,619 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-23 04:22:37,255 INFO L134 CoverageAnalysis]: Checked inductivity of 768 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 768 trivial. 0 not checked. [2020-12-23 04:22:37,255 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2020-12-23 04:22:37,260 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [3] total 4 [2020-12-23 04:22:37,261 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [994825762] [2020-12-23 04:22:37,261 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-23 04:22:37,262 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 04:22:37,262 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-23 04:22:37,263 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-12-23 04:22:37,263 INFO L87 Difference]: Start difference. First operand 3564 states and 3992 transitions. Second operand 3 states. [2020-12-23 04:22:38,037 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 04:22:38,038 INFO L93 Difference]: Finished difference Result 4634 states and 5186 transitions. [2020-12-23 04:22:38,038 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-23 04:22:38,038 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 514 [2020-12-23 04:22:38,040 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 04:22:38,063 INFO L225 Difference]: With dead ends: 4634 [2020-12-23 04:22:38,064 INFO L226 Difference]: Without dead ends: 4632 [2020-12-23 04:22:38,067 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 516 GetRequests, 513 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-12-23 04:22:38,073 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4632 states. [2020-12-23 04:22:38,145 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4632 to 3742. [2020-12-23 04:22:38,145 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3742 states. [2020-12-23 04:22:38,157 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3742 states to 3742 states and 4206 transitions. [2020-12-23 04:22:38,157 INFO L78 Accepts]: Start accepts. Automaton has 3742 states and 4206 transitions. Word has length 514 [2020-12-23 04:22:38,158 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 04:22:38,158 INFO L481 AbstractCegarLoop]: Abstraction has 3742 states and 4206 transitions. [2020-12-23 04:22:38,158 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-23 04:22:38,158 INFO L276 IsEmpty]: Start isEmpty. Operand 3742 states and 4206 transitions. [2020-12-23 04:22:38,164 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 517 [2020-12-23 04:22:38,164 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 04:22:38,165 INFO L422 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-23 04:22:38,379 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2020-12-23 04:22:38,380 INFO L429 AbstractCegarLoop]: === Iteration 11 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-23 04:22:38,381 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 04:22:38,381 INFO L82 PathProgramCache]: Analyzing trace with hash 1470466272, now seen corresponding path program 1 times [2020-12-23 04:22:38,382 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 04:22:38,382 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1263924370] [2020-12-23 04:22:38,382 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 04:22:38,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 04:22:38,992 INFO L134 CoverageAnalysis]: Checked inductivity of 1042 backedges. 689 proven. 0 refuted. 0 times theorem prover too weak. 353 trivial. 0 not checked. [2020-12-23 04:22:38,992 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1263924370] [2020-12-23 04:22:38,993 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-23 04:22:38,993 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-23 04:22:38,993 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [211804944] [2020-12-23 04:22:38,994 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-12-23 04:22:38,994 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 04:22:38,995 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-12-23 04:22:38,995 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-12-23 04:22:38,995 INFO L87 Difference]: Start difference. First operand 3742 states and 4206 transitions. Second operand 4 states. [2020-12-23 04:22:40,027 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 04:22:40,028 INFO L93 Difference]: Finished difference Result 7511 states and 8456 transitions. [2020-12-23 04:22:40,028 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-12-23 04:22:40,028 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 516 [2020-12-23 04:22:40,029 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 04:22:40,047 INFO L225 Difference]: With dead ends: 7511 [2020-12-23 04:22:40,048 INFO L226 Difference]: Without dead ends: 3920 [2020-12-23 04:22:40,053 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-12-23 04:22:40,058 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3920 states. [2020-12-23 04:22:40,123 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3920 to 3742. [2020-12-23 04:22:40,124 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3742 states. [2020-12-23 04:22:40,130 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3742 states to 3742 states and 4058 transitions. [2020-12-23 04:22:40,131 INFO L78 Accepts]: Start accepts. Automaton has 3742 states and 4058 transitions. Word has length 516 [2020-12-23 04:22:40,132 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 04:22:40,132 INFO L481 AbstractCegarLoop]: Abstraction has 3742 states and 4058 transitions. [2020-12-23 04:22:40,132 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-12-23 04:22:40,132 INFO L276 IsEmpty]: Start isEmpty. Operand 3742 states and 4058 transitions. [2020-12-23 04:22:40,138 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 543 [2020-12-23 04:22:40,138 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 04:22:40,139 INFO L422 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-23 04:22:40,139 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-12-23 04:22:40,139 INFO L429 AbstractCegarLoop]: === Iteration 12 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-23 04:22:40,139 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 04:22:40,140 INFO L82 PathProgramCache]: Analyzing trace with hash 2099920225, now seen corresponding path program 1 times [2020-12-23 04:22:40,140 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 04:22:40,140 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [874407606] [2020-12-23 04:22:40,140 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 04:22:40,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 04:22:40,932 INFO L134 CoverageAnalysis]: Checked inductivity of 1121 backedges. 763 proven. 11 refuted. 0 times theorem prover too weak. 347 trivial. 0 not checked. [2020-12-23 04:22:40,932 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [874407606] [2020-12-23 04:22:40,933 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1292362124] [2020-12-23 04:22:40,933 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-23 04:22:41,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 04:22:41,119 INFO L263 TraceCheckSpWp]: Trace formula consists of 721 conjuncts, 2 conjunts are in the unsatisfiable core [2020-12-23 04:22:41,126 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-23 04:22:41,694 INFO L134 CoverageAnalysis]: Checked inductivity of 1121 backedges. 164 proven. 0 refuted. 0 times theorem prover too weak. 957 trivial. 0 not checked. [2020-12-23 04:22:41,695 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2020-12-23 04:22:41,695 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 6 [2020-12-23 04:22:41,696 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2105014249] [2020-12-23 04:22:41,697 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-23 04:22:41,697 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 04:22:41,698 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-23 04:22:41,698 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-12-23 04:22:41,698 INFO L87 Difference]: Start difference. First operand 3742 states and 4058 transitions. Second operand 3 states. [2020-12-23 04:22:42,570 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 04:22:42,570 INFO L93 Difference]: Finished difference Result 8550 states and 9311 transitions. [2020-12-23 04:22:42,571 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-23 04:22:42,571 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 542 [2020-12-23 04:22:42,572 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 04:22:42,594 INFO L225 Difference]: With dead ends: 8550 [2020-12-23 04:22:42,595 INFO L226 Difference]: Without dead ends: 4988 [2020-12-23 04:22:42,602 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 545 GetRequests, 541 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-12-23 04:22:42,610 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4988 states. [2020-12-23 04:22:42,703 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4988 to 4810. [2020-12-23 04:22:42,703 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4810 states. [2020-12-23 04:22:42,713 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4810 states to 4810 states and 5196 transitions. [2020-12-23 04:22:42,713 INFO L78 Accepts]: Start accepts. Automaton has 4810 states and 5196 transitions. Word has length 542 [2020-12-23 04:22:42,715 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 04:22:42,715 INFO L481 AbstractCegarLoop]: Abstraction has 4810 states and 5196 transitions. [2020-12-23 04:22:42,715 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-23 04:22:42,715 INFO L276 IsEmpty]: Start isEmpty. Operand 4810 states and 5196 transitions. [2020-12-23 04:22:42,725 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 562 [2020-12-23 04:22:42,726 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 04:22:42,726 INFO L422 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-23 04:22:42,939 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11,5 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-23 04:22:42,940 INFO L429 AbstractCegarLoop]: === Iteration 13 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-23 04:22:42,941 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 04:22:42,942 INFO L82 PathProgramCache]: Analyzing trace with hash -1352323170, now seen corresponding path program 1 times [2020-12-23 04:22:42,942 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 04:22:42,942 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [634982356] [2020-12-23 04:22:42,943 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 04:22:43,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 04:22:43,855 INFO L134 CoverageAnalysis]: Checked inductivity of 1197 backedges. 839 proven. 11 refuted. 0 times theorem prover too weak. 347 trivial. 0 not checked. [2020-12-23 04:22:43,855 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [634982356] [2020-12-23 04:22:43,855 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1705380342] [2020-12-23 04:22:43,856 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-23 04:22:44,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 04:22:44,042 INFO L263 TraceCheckSpWp]: Trace formula consists of 741 conjuncts, 3 conjunts are in the unsatisfiable core [2020-12-23 04:22:44,049 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-23 04:22:45,289 INFO L134 CoverageAnalysis]: Checked inductivity of 1197 backedges. 534 proven. 0 refuted. 0 times theorem prover too weak. 663 trivial. 0 not checked. [2020-12-23 04:22:45,290 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2020-12-23 04:22:45,290 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [4] total 5 [2020-12-23 04:22:45,290 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [171234616] [2020-12-23 04:22:45,291 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-23 04:22:45,291 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 04:22:45,292 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-23 04:22:45,292 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2020-12-23 04:22:45,292 INFO L87 Difference]: Start difference. First operand 4810 states and 5196 transitions. Second operand 3 states. [2020-12-23 04:22:46,008 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 04:22:46,008 INFO L93 Difference]: Finished difference Result 9618 states and 10400 transitions. [2020-12-23 04:22:46,009 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-23 04:22:46,009 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 561 [2020-12-23 04:22:46,011 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 04:22:46,022 INFO L225 Difference]: With dead ends: 9618 [2020-12-23 04:22:46,022 INFO L226 Difference]: Without dead ends: 4988 [2020-12-23 04:22:46,029 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 564 GetRequests, 560 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2020-12-23 04:22:46,038 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4988 states. [2020-12-23 04:22:46,111 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4988 to 4988. [2020-12-23 04:22:46,112 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4988 states. [2020-12-23 04:22:46,124 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4988 states to 4988 states and 5313 transitions. [2020-12-23 04:22:46,125 INFO L78 Accepts]: Start accepts. Automaton has 4988 states and 5313 transitions. Word has length 561 [2020-12-23 04:22:46,125 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 04:22:46,126 INFO L481 AbstractCegarLoop]: Abstraction has 4988 states and 5313 transitions. [2020-12-23 04:22:46,126 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-23 04:22:46,126 INFO L276 IsEmpty]: Start isEmpty. Operand 4988 states and 5313 transitions. [2020-12-23 04:22:46,138 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 780 [2020-12-23 04:22:46,138 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 04:22:46,139 INFO L422 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-23 04:22:46,353 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable12 [2020-12-23 04:22:46,354 INFO L429 AbstractCegarLoop]: === Iteration 14 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-23 04:22:46,355 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 04:22:46,355 INFO L82 PathProgramCache]: Analyzing trace with hash 1991278311, now seen corresponding path program 1 times [2020-12-23 04:22:46,356 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 04:22:46,356 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [74786756] [2020-12-23 04:22:46,356 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 04:22:46,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 04:22:47,228 INFO L134 CoverageAnalysis]: Checked inductivity of 1761 backedges. 1259 proven. 155 refuted. 0 times theorem prover too weak. 347 trivial. 0 not checked. [2020-12-23 04:22:47,228 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [74786756] [2020-12-23 04:22:47,228 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1027246469] [2020-12-23 04:22:47,229 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 7 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 7 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-23 04:22:47,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 04:22:47,481 INFO L263 TraceCheckSpWp]: Trace formula consists of 985 conjuncts, 2 conjunts are in the unsatisfiable core [2020-12-23 04:22:47,489 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-23 04:22:48,341 INFO L134 CoverageAnalysis]: Checked inductivity of 1761 backedges. 197 proven. 0 refuted. 0 times theorem prover too weak. 1564 trivial. 0 not checked. [2020-12-23 04:22:48,341 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2020-12-23 04:22:48,342 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 5 [2020-12-23 04:22:48,342 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [703474834] [2020-12-23 04:22:48,343 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-23 04:22:48,343 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 04:22:48,343 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-23 04:22:48,343 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-12-23 04:22:48,344 INFO L87 Difference]: Start difference. First operand 4988 states and 5313 transitions. Second operand 3 states. [2020-12-23 04:22:49,113 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 04:22:49,113 INFO L93 Difference]: Finished difference Result 11220 states and 11937 transitions. [2020-12-23 04:22:49,114 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-23 04:22:49,114 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 779 [2020-12-23 04:22:49,116 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 04:22:49,124 INFO L225 Difference]: With dead ends: 11220 [2020-12-23 04:22:49,125 INFO L226 Difference]: Without dead ends: 4098 [2020-12-23 04:22:49,132 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 782 GetRequests, 779 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-12-23 04:22:49,136 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4098 states. [2020-12-23 04:22:49,182 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4098 to 3208. [2020-12-23 04:22:49,183 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3208 states. [2020-12-23 04:22:49,188 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3208 states to 3208 states and 3339 transitions. [2020-12-23 04:22:49,189 INFO L78 Accepts]: Start accepts. Automaton has 3208 states and 3339 transitions. Word has length 779 [2020-12-23 04:22:49,190 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 04:22:49,190 INFO L481 AbstractCegarLoop]: Abstraction has 3208 states and 3339 transitions. [2020-12-23 04:22:49,190 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-23 04:22:49,190 INFO L276 IsEmpty]: Start isEmpty. Operand 3208 states and 3339 transitions. [2020-12-23 04:22:49,198 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 791 [2020-12-23 04:22:49,198 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 04:22:49,199 INFO L422 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-23 04:22:49,412 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13,7 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-23 04:22:49,413 INFO L429 AbstractCegarLoop]: === Iteration 15 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-23 04:22:49,414 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 04:22:49,414 INFO L82 PathProgramCache]: Analyzing trace with hash -362013204, now seen corresponding path program 1 times [2020-12-23 04:22:49,415 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 04:22:49,415 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1348196291] [2020-12-23 04:22:49,415 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 04:22:49,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 04:22:50,233 INFO L134 CoverageAnalysis]: Checked inductivity of 1816 backedges. 1314 proven. 155 refuted. 0 times theorem prover too weak. 347 trivial. 0 not checked. [2020-12-23 04:22:50,234 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1348196291] [2020-12-23 04:22:50,234 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [175708102] [2020-12-23 04:22:50,234 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 8 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 8 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-23 04:22:50,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 04:22:50,482 INFO L263 TraceCheckSpWp]: Trace formula consists of 998 conjuncts, 2 conjunts are in the unsatisfiable core [2020-12-23 04:22:50,503 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-23 04:22:51,468 INFO L134 CoverageAnalysis]: Checked inductivity of 1816 backedges. 701 proven. 0 refuted. 0 times theorem prover too weak. 1115 trivial. 0 not checked. [2020-12-23 04:22:51,468 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2020-12-23 04:22:51,469 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 5 [2020-12-23 04:22:51,469 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [483677202] [2020-12-23 04:22:51,475 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-23 04:22:51,476 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 04:22:51,476 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-23 04:22:51,476 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-12-23 04:22:51,477 INFO L87 Difference]: Start difference. First operand 3208 states and 3339 transitions. Second operand 3 states. [2020-12-23 04:22:52,125 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 04:22:52,125 INFO L93 Difference]: Finished difference Result 7126 states and 7421 transitions. [2020-12-23 04:22:52,126 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-23 04:22:52,126 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 790 [2020-12-23 04:22:52,127 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 04:22:52,134 INFO L225 Difference]: With dead ends: 7126 [2020-12-23 04:22:52,134 INFO L226 Difference]: Without dead ends: 3920 [2020-12-23 04:22:52,138 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 793 GetRequests, 790 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-12-23 04:22:52,142 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3920 states. [2020-12-23 04:22:52,188 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3920 to 3742. [2020-12-23 04:22:52,188 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3742 states. [2020-12-23 04:22:52,194 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3742 states to 3742 states and 3882 transitions. [2020-12-23 04:22:52,194 INFO L78 Accepts]: Start accepts. Automaton has 3742 states and 3882 transitions. Word has length 790 [2020-12-23 04:22:52,195 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 04:22:52,195 INFO L481 AbstractCegarLoop]: Abstraction has 3742 states and 3882 transitions. [2020-12-23 04:22:52,195 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-23 04:22:52,195 INFO L276 IsEmpty]: Start isEmpty. Operand 3742 states and 3882 transitions. [2020-12-23 04:22:52,206 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 861 [2020-12-23 04:22:52,206 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 04:22:52,207 INFO L422 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-23 04:22:52,422 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable14 [2020-12-23 04:22:52,423 INFO L429 AbstractCegarLoop]: === Iteration 16 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-23 04:22:52,424 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 04:22:52,424 INFO L82 PathProgramCache]: Analyzing trace with hash -758893509, now seen corresponding path program 1 times [2020-12-23 04:22:52,424 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 04:22:52,425 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1988717566] [2020-12-23 04:22:52,425 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 04:22:52,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 04:22:53,261 INFO L134 CoverageAnalysis]: Checked inductivity of 1961 backedges. 1459 proven. 155 refuted. 0 times theorem prover too weak. 347 trivial. 0 not checked. [2020-12-23 04:22:53,262 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1988717566] [2020-12-23 04:22:53,262 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [956147440] [2020-12-23 04:22:53,262 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 9 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 9 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-23 04:22:53,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 04:22:53,526 INFO L263 TraceCheckSpWp]: Trace formula consists of 1066 conjuncts, 2 conjunts are in the unsatisfiable core [2020-12-23 04:22:53,535 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-23 04:22:54,645 INFO L134 CoverageAnalysis]: Checked inductivity of 1961 backedges. 197 proven. 0 refuted. 0 times theorem prover too weak. 1764 trivial. 0 not checked. [2020-12-23 04:22:54,645 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2020-12-23 04:22:54,646 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 5 [2020-12-23 04:22:54,646 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [505366050] [2020-12-23 04:22:54,647 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-23 04:22:54,647 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 04:22:54,647 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-23 04:22:54,647 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-12-23 04:22:54,647 INFO L87 Difference]: Start difference. First operand 3742 states and 3882 transitions. Second operand 3 states. [2020-12-23 04:22:55,357 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 04:22:55,358 INFO L93 Difference]: Finished difference Result 7660 states and 7941 transitions. [2020-12-23 04:22:55,362 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-23 04:22:55,363 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 860 [2020-12-23 04:22:55,364 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 04:22:55,371 INFO L225 Difference]: With dead ends: 7660 [2020-12-23 04:22:55,371 INFO L226 Difference]: Without dead ends: 3920 [2020-12-23 04:22:55,377 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 863 GetRequests, 860 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-12-23 04:22:55,382 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3920 states. [2020-12-23 04:22:55,428 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3920 to 3564. [2020-12-23 04:22:55,428 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3564 states. [2020-12-23 04:22:55,434 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3564 states to 3564 states and 3688 transitions. [2020-12-23 04:22:55,434 INFO L78 Accepts]: Start accepts. Automaton has 3564 states and 3688 transitions. Word has length 860 [2020-12-23 04:22:55,435 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 04:22:55,435 INFO L481 AbstractCegarLoop]: Abstraction has 3564 states and 3688 transitions. [2020-12-23 04:22:55,435 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-23 04:22:55,435 INFO L276 IsEmpty]: Start isEmpty. Operand 3564 states and 3688 transitions. [2020-12-23 04:22:55,446 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 866 [2020-12-23 04:22:55,447 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 04:22:55,448 INFO L422 BasicCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-23 04:22:55,662 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable15 [2020-12-23 04:22:55,663 INFO L429 AbstractCegarLoop]: === Iteration 17 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-23 04:22:55,664 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 04:22:55,664 INFO L82 PathProgramCache]: Analyzing trace with hash -710833124, now seen corresponding path program 1 times [2020-12-23 04:22:55,665 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 04:22:55,665 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [206767099] [2020-12-23 04:22:55,665 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 04:22:55,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 04:22:56,483 INFO L134 CoverageAnalysis]: Checked inductivity of 2298 backedges. 1688 proven. 155 refuted. 0 times theorem prover too weak. 455 trivial. 0 not checked. [2020-12-23 04:22:56,483 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [206767099] [2020-12-23 04:22:56,483 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1833753428] [2020-12-23 04:22:56,483 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 10 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 10 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-23 04:22:56,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 04:22:56,747 INFO L263 TraceCheckSpWp]: Trace formula consists of 1094 conjuncts, 3 conjunts are in the unsatisfiable core [2020-12-23 04:22:56,757 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-23 04:22:57,827 INFO L134 CoverageAnalysis]: Checked inductivity of 2298 backedges. 1688 proven. 155 refuted. 0 times theorem prover too weak. 455 trivial. 0 not checked. [2020-12-23 04:22:57,828 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-12-23 04:22:57,828 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 4 [2020-12-23 04:22:57,828 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1225198856] [2020-12-23 04:22:57,830 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-12-23 04:22:57,830 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 04:22:57,830 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-12-23 04:22:57,831 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-12-23 04:22:57,831 INFO L87 Difference]: Start difference. First operand 3564 states and 3688 transitions. Second operand 4 states. [2020-12-23 04:22:58,743 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 04:22:58,743 INFO L93 Difference]: Finished difference Result 7838 states and 8117 transitions. [2020-12-23 04:22:58,743 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-12-23 04:22:58,744 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 865 [2020-12-23 04:22:58,745 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 04:22:58,752 INFO L225 Difference]: With dead ends: 7838 [2020-12-23 04:22:58,752 INFO L226 Difference]: Without dead ends: 4276 [2020-12-23 04:22:58,756 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 868 GetRequests, 866 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-12-23 04:22:58,761 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4276 states. [2020-12-23 04:22:58,840 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4276 to 3920. [2020-12-23 04:22:58,840 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3920 states. [2020-12-23 04:22:58,845 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3920 states to 3920 states and 4065 transitions. [2020-12-23 04:22:58,846 INFO L78 Accepts]: Start accepts. Automaton has 3920 states and 4065 transitions. Word has length 865 [2020-12-23 04:22:58,846 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 04:22:58,847 INFO L481 AbstractCegarLoop]: Abstraction has 3920 states and 4065 transitions. [2020-12-23 04:22:58,847 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-12-23 04:22:58,847 INFO L276 IsEmpty]: Start isEmpty. Operand 3920 states and 4065 transitions. [2020-12-23 04:22:58,860 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 956 [2020-12-23 04:22:58,860 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 04:22:58,861 INFO L422 BasicCegarLoop]: trace histogram [9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 4, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-23 04:22:59,109 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable16 [2020-12-23 04:22:59,109 INFO L429 AbstractCegarLoop]: === Iteration 18 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-23 04:22:59,110 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 04:22:59,110 INFO L82 PathProgramCache]: Analyzing trace with hash -2093710832, now seen corresponding path program 1 times [2020-12-23 04:22:59,110 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 04:22:59,111 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2129568990] [2020-12-23 04:22:59,111 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 04:22:59,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 04:23:00,825 INFO L134 CoverageAnalysis]: Checked inductivity of 2852 backedges. 1846 proven. 93 refuted. 0 times theorem prover too weak. 913 trivial. 0 not checked. [2020-12-23 04:23:00,825 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2129568990] [2020-12-23 04:23:00,825 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1037869455] [2020-12-23 04:23:00,826 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 11 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 11 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-23 04:23:01,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 04:23:01,115 INFO L263 TraceCheckSpWp]: Trace formula consists of 1206 conjuncts, 3 conjunts are in the unsatisfiable core [2020-12-23 04:23:01,136 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-23 04:23:02,308 INFO L134 CoverageAnalysis]: Checked inductivity of 2852 backedges. 1939 proven. 0 refuted. 0 times theorem prover too weak. 913 trivial. 0 not checked. [2020-12-23 04:23:02,309 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2020-12-23 04:23:02,309 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 6 [2020-12-23 04:23:02,309 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1895391349] [2020-12-23 04:23:02,310 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-23 04:23:02,310 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 04:23:02,310 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-23 04:23:02,311 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-12-23 04:23:02,311 INFO L87 Difference]: Start difference. First operand 3920 states and 4065 transitions. Second operand 3 states. [2020-12-23 04:23:02,963 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 04:23:02,963 INFO L93 Difference]: Finished difference Result 8016 states and 8308 transitions. [2020-12-23 04:23:02,963 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-23 04:23:02,964 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 955 [2020-12-23 04:23:02,964 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 04:23:02,971 INFO L225 Difference]: With dead ends: 8016 [2020-12-23 04:23:02,971 INFO L226 Difference]: Without dead ends: 4098 [2020-12-23 04:23:02,975 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 958 GetRequests, 954 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-12-23 04:23:02,979 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4098 states. [2020-12-23 04:23:03,021 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4098 to 3742. [2020-12-23 04:23:03,022 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3742 states. [2020-12-23 04:23:03,027 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3742 states to 3742 states and 3882 transitions. [2020-12-23 04:23:03,027 INFO L78 Accepts]: Start accepts. Automaton has 3742 states and 3882 transitions. Word has length 955 [2020-12-23 04:23:03,028 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 04:23:03,028 INFO L481 AbstractCegarLoop]: Abstraction has 3742 states and 3882 transitions. [2020-12-23 04:23:03,028 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-23 04:23:03,028 INFO L276 IsEmpty]: Start isEmpty. Operand 3742 states and 3882 transitions. [2020-12-23 04:23:03,041 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1033 [2020-12-23 04:23:03,041 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 04:23:03,042 INFO L422 BasicCegarLoop]: trace histogram [10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 4, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-23 04:23:03,256 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable17 [2020-12-23 04:23:03,257 INFO L429 AbstractCegarLoop]: === Iteration 19 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-23 04:23:03,258 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 04:23:03,258 INFO L82 PathProgramCache]: Analyzing trace with hash 538441961, now seen corresponding path program 1 times [2020-12-23 04:23:03,259 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 04:23:03,259 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [798898712] [2020-12-23 04:23:03,259 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 04:23:03,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 04:23:04,278 INFO L134 CoverageAnalysis]: Checked inductivity of 3493 backedges. 2444 proven. 72 refuted. 0 times theorem prover too weak. 977 trivial. 0 not checked. [2020-12-23 04:23:04,279 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [798898712] [2020-12-23 04:23:04,279 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1461670605] [2020-12-23 04:23:04,279 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 12 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 12 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-23 04:23:04,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 04:23:04,583 INFO L263 TraceCheckSpWp]: Trace formula consists of 1306 conjuncts, 5 conjunts are in the unsatisfiable core [2020-12-23 04:23:04,594 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-23 04:23:05,901 INFO L134 CoverageAnalysis]: Checked inductivity of 3493 backedges. 2157 proven. 0 refuted. 0 times theorem prover too weak. 1336 trivial. 0 not checked. [2020-12-23 04:23:05,901 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2020-12-23 04:23:05,901 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [5] total 7 [2020-12-23 04:23:05,902 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1564348040] [2020-12-23 04:23:05,902 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-12-23 04:23:05,903 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 04:23:05,903 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-12-23 04:23:05,903 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2020-12-23 04:23:05,903 INFO L87 Difference]: Start difference. First operand 3742 states and 3882 transitions. Second operand 4 states. [2020-12-23 04:23:07,036 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 04:23:07,036 INFO L93 Difference]: Finished difference Result 8550 states and 8863 transitions. [2020-12-23 04:23:07,036 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-12-23 04:23:07,036 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 1032 [2020-12-23 04:23:07,037 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 04:23:07,046 INFO L225 Difference]: With dead ends: 8550 [2020-12-23 04:23:07,047 INFO L226 Difference]: Without dead ends: 4810 [2020-12-23 04:23:07,051 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 1036 GetRequests, 1031 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2020-12-23 04:23:07,056 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4810 states. [2020-12-23 04:23:07,105 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4810 to 4098. [2020-12-23 04:23:07,105 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4098 states. [2020-12-23 04:23:07,111 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4098 states to 4098 states and 4247 transitions. [2020-12-23 04:23:07,111 INFO L78 Accepts]: Start accepts. Automaton has 4098 states and 4247 transitions. Word has length 1032 [2020-12-23 04:23:07,112 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 04:23:07,112 INFO L481 AbstractCegarLoop]: Abstraction has 4098 states and 4247 transitions. [2020-12-23 04:23:07,112 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-12-23 04:23:07,113 INFO L276 IsEmpty]: Start isEmpty. Operand 4098 states and 4247 transitions. [2020-12-23 04:23:07,125 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1066 [2020-12-23 04:23:07,126 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 04:23:07,126 INFO L422 BasicCegarLoop]: trace histogram [10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 5, 4, 4, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-23 04:23:07,340 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18,12 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-23 04:23:07,340 INFO L429 AbstractCegarLoop]: === Iteration 20 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-23 04:23:07,341 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 04:23:07,341 INFO L82 PathProgramCache]: Analyzing trace with hash 1881927302, now seen corresponding path program 1 times [2020-12-23 04:23:07,341 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 04:23:07,341 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [825882713] [2020-12-23 04:23:07,342 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 04:23:07,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 04:23:08,324 INFO L134 CoverageAnalysis]: Checked inductivity of 3681 backedges. 1700 proven. 0 refuted. 0 times theorem prover too weak. 1981 trivial. 0 not checked. [2020-12-23 04:23:08,326 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [825882713] [2020-12-23 04:23:08,326 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-23 04:23:08,326 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-23 04:23:08,326 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1984821190] [2020-12-23 04:23:08,327 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-23 04:23:08,327 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 04:23:08,327 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-23 04:23:08,327 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-23 04:23:08,327 INFO L87 Difference]: Start difference. First operand 4098 states and 4247 transitions. Second operand 3 states. [2020-12-23 04:23:09,043 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 04:23:09,043 INFO L93 Difference]: Finished difference Result 8372 states and 8671 transitions. [2020-12-23 04:23:09,044 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-23 04:23:09,044 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 1065 [2020-12-23 04:23:09,045 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 04:23:09,050 INFO L225 Difference]: With dead ends: 8372 [2020-12-23 04:23:09,050 INFO L226 Difference]: Without dead ends: 4276 [2020-12-23 04:23:09,054 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-23 04:23:09,057 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4276 states. [2020-12-23 04:23:09,101 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4276 to 4098. [2020-12-23 04:23:09,101 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4098 states. [2020-12-23 04:23:09,108 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4098 states to 4098 states and 4204 transitions. [2020-12-23 04:23:09,108 INFO L78 Accepts]: Start accepts. Automaton has 4098 states and 4204 transitions. Word has length 1065 [2020-12-23 04:23:09,109 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 04:23:09,109 INFO L481 AbstractCegarLoop]: Abstraction has 4098 states and 4204 transitions. [2020-12-23 04:23:09,109 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-23 04:23:09,109 INFO L276 IsEmpty]: Start isEmpty. Operand 4098 states and 4204 transitions. [2020-12-23 04:23:09,124 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1180 [2020-12-23 04:23:09,124 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 04:23:09,125 INFO L422 BasicCegarLoop]: trace histogram [11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 6, 5, 5, 4, 4, 4, 4, 4, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-23 04:23:09,125 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2020-12-23 04:23:09,125 INFO L429 AbstractCegarLoop]: === Iteration 21 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-23 04:23:09,126 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 04:23:09,126 INFO L82 PathProgramCache]: Analyzing trace with hash 2044517406, now seen corresponding path program 1 times [2020-12-23 04:23:09,126 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 04:23:09,126 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1778295286] [2020-12-23 04:23:09,127 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 04:23:09,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 04:23:10,550 INFO L134 CoverageAnalysis]: Checked inductivity of 4623 backedges. 1942 proven. 0 refuted. 0 times theorem prover too weak. 2681 trivial. 0 not checked. [2020-12-23 04:23:10,551 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1778295286] [2020-12-23 04:23:10,551 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-23 04:23:10,574 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-23 04:23:10,575 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [368785949] [2020-12-23 04:23:10,575 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-23 04:23:10,575 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 04:23:10,576 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-23 04:23:10,576 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-23 04:23:10,576 INFO L87 Difference]: Start difference. First operand 4098 states and 4204 transitions. Second operand 3 states. [2020-12-23 04:23:11,208 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 04:23:11,209 INFO L93 Difference]: Finished difference Result 8194 states and 8406 transitions. [2020-12-23 04:23:11,209 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-23 04:23:11,209 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 1179 [2020-12-23 04:23:11,211 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 04:23:11,217 INFO L225 Difference]: With dead ends: 8194 [2020-12-23 04:23:11,217 INFO L226 Difference]: Without dead ends: 4098 [2020-12-23 04:23:11,221 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-23 04:23:11,225 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4098 states. [2020-12-23 04:23:11,269 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4098 to 4098. [2020-12-23 04:23:11,270 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4098 states. [2020-12-23 04:23:11,276 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4098 states to 4098 states and 4200 transitions. [2020-12-23 04:23:11,276 INFO L78 Accepts]: Start accepts. Automaton has 4098 states and 4200 transitions. Word has length 1179 [2020-12-23 04:23:11,277 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 04:23:11,278 INFO L481 AbstractCegarLoop]: Abstraction has 4098 states and 4200 transitions. [2020-12-23 04:23:11,278 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-23 04:23:11,278 INFO L276 IsEmpty]: Start isEmpty. Operand 4098 states and 4200 transitions. [2020-12-23 04:23:11,299 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1494 [2020-12-23 04:23:11,299 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 04:23:11,300 INFO L422 BasicCegarLoop]: trace histogram [13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 11, 11, 11, 11, 11, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 9, 9, 9, 9, 8, 7, 7, 6, 6, 6, 6, 6, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-23 04:23:11,300 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2020-12-23 04:23:11,300 INFO L429 AbstractCegarLoop]: === Iteration 22 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-23 04:23:11,301 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 04:23:11,301 INFO L82 PathProgramCache]: Analyzing trace with hash 56811543, now seen corresponding path program 1 times [2020-12-23 04:23:11,301 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 04:23:11,301 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [274673311] [2020-12-23 04:23:11,302 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 04:23:11,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 04:23:14,625 INFO L134 CoverageAnalysis]: Checked inductivity of 7035 backedges. 4438 proven. 252 refuted. 0 times theorem prover too weak. 2345 trivial. 0 not checked. [2020-12-23 04:23:14,625 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [274673311] [2020-12-23 04:23:14,625 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [87888619] [2020-12-23 04:23:14,626 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 13 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 13 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-23 04:23:15,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 04:23:15,064 INFO L263 TraceCheckSpWp]: Trace formula consists of 1834 conjuncts, 3 conjunts are in the unsatisfiable core [2020-12-23 04:23:15,081 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-23 04:23:17,420 INFO L134 CoverageAnalysis]: Checked inductivity of 7035 backedges. 2426 proven. 0 refuted. 0 times theorem prover too weak. 4609 trivial. 0 not checked. [2020-12-23 04:23:17,421 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2020-12-23 04:23:17,421 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [5] total 7 [2020-12-23 04:23:17,421 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1461118778] [2020-12-23 04:23:17,422 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-23 04:23:17,422 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 04:23:17,423 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-23 04:23:17,423 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2020-12-23 04:23:17,423 INFO L87 Difference]: Start difference. First operand 4098 states and 4200 transitions. Second operand 3 states. [2020-12-23 04:23:18,104 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 04:23:18,104 INFO L93 Difference]: Finished difference Result 8550 states and 8758 transitions. [2020-12-23 04:23:18,105 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-23 04:23:18,105 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 1493 [2020-12-23 04:23:18,107 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 04:23:18,113 INFO L225 Difference]: With dead ends: 8550 [2020-12-23 04:23:18,113 INFO L226 Difference]: Without dead ends: 4454 [2020-12-23 04:23:18,117 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 1497 GetRequests, 1492 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2020-12-23 04:23:18,121 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4454 states. [2020-12-23 04:23:18,166 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4454 to 4454. [2020-12-23 04:23:18,166 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4454 states. [2020-12-23 04:23:18,173 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4454 states to 4454 states and 4550 transitions. [2020-12-23 04:23:18,174 INFO L78 Accepts]: Start accepts. Automaton has 4454 states and 4550 transitions. Word has length 1493 [2020-12-23 04:23:18,175 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 04:23:18,175 INFO L481 AbstractCegarLoop]: Abstraction has 4454 states and 4550 transitions. [2020-12-23 04:23:18,175 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-23 04:23:18,175 INFO L276 IsEmpty]: Start isEmpty. Operand 4454 states and 4550 transitions. [2020-12-23 04:23:18,206 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1693 [2020-12-23 04:23:18,206 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 04:23:18,207 INFO L422 BasicCegarLoop]: trace histogram [15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 13, 13, 13, 12, 12, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 10, 10, 10, 10, 9, 8, 8, 8, 7, 7, 7, 7, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-23 04:23:18,420 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21,13 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-23 04:23:18,421 INFO L429 AbstractCegarLoop]: === Iteration 23 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-23 04:23:18,421 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 04:23:18,422 INFO L82 PathProgramCache]: Analyzing trace with hash -2049595045, now seen corresponding path program 1 times [2020-12-23 04:23:18,423 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 04:23:18,423 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [552220945] [2020-12-23 04:23:18,423 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 04:23:18,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 04:23:20,251 INFO L134 CoverageAnalysis]: Checked inductivity of 9366 backedges. 2557 proven. 0 refuted. 0 times theorem prover too weak. 6809 trivial. 0 not checked. [2020-12-23 04:23:20,251 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [552220945] [2020-12-23 04:23:20,251 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-23 04:23:20,252 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-23 04:23:20,252 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [919648764] [2020-12-23 04:23:20,253 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-23 04:23:20,253 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 04:23:20,253 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-23 04:23:20,253 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-23 04:23:20,254 INFO L87 Difference]: Start difference. First operand 4454 states and 4550 transitions. Second operand 3 states. [2020-12-23 04:23:20,931 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 04:23:20,932 INFO L93 Difference]: Finished difference Result 9262 states and 9456 transitions. [2020-12-23 04:23:20,932 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-23 04:23:20,932 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 1692 [2020-12-23 04:23:20,934 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 04:23:20,941 INFO L225 Difference]: With dead ends: 9262 [2020-12-23 04:23:20,941 INFO L226 Difference]: Without dead ends: 4632 [2020-12-23 04:23:20,944 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-23 04:23:20,948 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4632 states. [2020-12-23 04:23:20,989 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4632 to 4276. [2020-12-23 04:23:20,989 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4276 states. [2020-12-23 04:23:20,996 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4276 states to 4276 states and 4360 transitions. [2020-12-23 04:23:20,996 INFO L78 Accepts]: Start accepts. Automaton has 4276 states and 4360 transitions. Word has length 1692 [2020-12-23 04:23:20,997 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 04:23:20,998 INFO L481 AbstractCegarLoop]: Abstraction has 4276 states and 4360 transitions. [2020-12-23 04:23:20,998 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-23 04:23:20,998 INFO L276 IsEmpty]: Start isEmpty. Operand 4276 states and 4360 transitions. [2020-12-23 04:23:21,024 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1726 [2020-12-23 04:23:21,024 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 04:23:21,025 INFO L422 BasicCegarLoop]: trace histogram [15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 13, 13, 13, 13, 13, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 11, 11, 11, 11, 10, 9, 9, 8, 7, 7, 7, 7, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-23 04:23:21,026 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2020-12-23 04:23:21,026 INFO L429 AbstractCegarLoop]: === Iteration 24 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-23 04:23:21,026 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 04:23:21,027 INFO L82 PathProgramCache]: Analyzing trace with hash -2062969772, now seen corresponding path program 1 times [2020-12-23 04:23:21,027 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 04:23:21,027 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2070845856] [2020-12-23 04:23:21,027 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 04:23:21,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 04:23:23,575 INFO L134 CoverageAnalysis]: Checked inductivity of 9719 backedges. 6578 proven. 0 refuted. 0 times theorem prover too weak. 3141 trivial. 0 not checked. [2020-12-23 04:23:23,576 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2070845856] [2020-12-23 04:23:23,576 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-23 04:23:23,576 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-12-23 04:23:23,577 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [293767798] [2020-12-23 04:23:23,578 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-12-23 04:23:23,578 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 04:23:23,578 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-12-23 04:23:23,579 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-12-23 04:23:23,579 INFO L87 Difference]: Start difference. First operand 4276 states and 4360 transitions. Second operand 4 states. [2020-12-23 04:23:24,746 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 04:23:24,747 INFO L93 Difference]: Finished difference Result 8550 states and 8724 transitions. [2020-12-23 04:23:24,747 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-12-23 04:23:24,748 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 1725 [2020-12-23 04:23:24,749 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 04:23:24,752 INFO L225 Difference]: With dead ends: 8550 [2020-12-23 04:23:24,752 INFO L226 Difference]: Without dead ends: 4454 [2020-12-23 04:23:24,754 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-12-23 04:23:24,756 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4454 states. [2020-12-23 04:23:24,788 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4454 to 4276. [2020-12-23 04:23:24,788 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4276 states. [2020-12-23 04:23:24,792 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4276 states to 4276 states and 4349 transitions. [2020-12-23 04:23:24,792 INFO L78 Accepts]: Start accepts. Automaton has 4276 states and 4349 transitions. Word has length 1725 [2020-12-23 04:23:24,793 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 04:23:24,793 INFO L481 AbstractCegarLoop]: Abstraction has 4276 states and 4349 transitions. [2020-12-23 04:23:24,793 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-12-23 04:23:24,794 INFO L276 IsEmpty]: Start isEmpty. Operand 4276 states and 4349 transitions. [2020-12-23 04:23:24,814 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1743 [2020-12-23 04:23:24,814 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 04:23:24,815 INFO L422 BasicCegarLoop]: trace histogram [15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 13, 13, 13, 12, 12, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 10, 10, 10, 10, 9, 8, 7, 7, 7, 7, 7, 7, 6, 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, 4, 4, 4, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-23 04:23:24,815 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2020-12-23 04:23:24,815 INFO L429 AbstractCegarLoop]: === Iteration 25 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-23 04:23:24,816 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 04:23:24,816 INFO L82 PathProgramCache]: Analyzing trace with hash 1952577186, now seen corresponding path program 1 times [2020-12-23 04:23:24,816 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 04:23:24,816 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1460333454] [2020-12-23 04:23:24,817 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 04:23:24,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 04:23:27,696 INFO L134 CoverageAnalysis]: Checked inductivity of 9519 backedges. 2756 proven. 1045 refuted. 0 times theorem prover too weak. 5718 trivial. 0 not checked. [2020-12-23 04:23:27,697 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1460333454] [2020-12-23 04:23:27,697 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1648424513] [2020-12-23 04:23:27,697 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 14 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 14 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-23 04:23:28,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 04:23:28,208 INFO L263 TraceCheckSpWp]: Trace formula consists of 2133 conjuncts, 2 conjunts are in the unsatisfiable core [2020-12-23 04:23:28,224 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-23 04:23:30,736 INFO L134 CoverageAnalysis]: Checked inductivity of 9519 backedges. 3801 proven. 0 refuted. 0 times theorem prover too weak. 5718 trivial. 0 not checked. [2020-12-23 04:23:30,737 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2020-12-23 04:23:30,737 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 6 [2020-12-23 04:23:30,738 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1496791634] [2020-12-23 04:23:30,739 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-23 04:23:30,739 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 04:23:30,739 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-23 04:23:30,739 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-12-23 04:23:30,740 INFO L87 Difference]: Start difference. First operand 4276 states and 4349 transitions. Second operand 3 states. [2020-12-23 04:23:31,365 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 04:23:31,365 INFO L93 Difference]: Finished difference Result 8372 states and 8510 transitions. [2020-12-23 04:23:31,366 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-23 04:23:31,366 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 1742 [2020-12-23 04:23:31,368 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 04:23:31,371 INFO L225 Difference]: With dead ends: 8372 [2020-12-23 04:23:31,371 INFO L226 Difference]: Without dead ends: 3386 [2020-12-23 04:23:31,374 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 1745 GetRequests, 1741 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-12-23 04:23:31,376 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3386 states. [2020-12-23 04:23:31,405 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3386 to 3386. [2020-12-23 04:23:31,405 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3386 states. [2020-12-23 04:23:31,410 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3386 states to 3386 states and 3426 transitions. [2020-12-23 04:23:31,410 INFO L78 Accepts]: Start accepts. Automaton has 3386 states and 3426 transitions. Word has length 1742 [2020-12-23 04:23:31,411 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 04:23:31,411 INFO L481 AbstractCegarLoop]: Abstraction has 3386 states and 3426 transitions. [2020-12-23 04:23:31,411 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-23 04:23:31,412 INFO L276 IsEmpty]: Start isEmpty. Operand 3386 states and 3426 transitions. [2020-12-23 04:23:31,442 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1814 [2020-12-23 04:23:31,442 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 04:23:31,443 INFO L422 BasicCegarLoop]: trace histogram [16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 14, 14, 14, 13, 13, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 11, 11, 11, 11, 10, 9, 9, 9, 8, 8, 8, 8, 7, 6, 6, 6, 6, 6, 6, 6, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-23 04:23:31,658 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable24 [2020-12-23 04:23:31,659 INFO L429 AbstractCegarLoop]: === Iteration 26 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-23 04:23:31,659 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 04:23:31,660 INFO L82 PathProgramCache]: Analyzing trace with hash -354861792, now seen corresponding path program 1 times [2020-12-23 04:23:31,660 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 04:23:31,661 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [253634207] [2020-12-23 04:23:31,661 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 04:23:31,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 04:23:34,057 INFO L134 CoverageAnalysis]: Checked inductivity of 10875 backedges. 2724 proven. 0 refuted. 0 times theorem prover too weak. 8151 trivial. 0 not checked. [2020-12-23 04:23:34,058 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [253634207] [2020-12-23 04:23:34,058 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-23 04:23:34,059 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-12-23 04:23:34,059 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1922139551] [2020-12-23 04:23:34,059 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-12-23 04:23:34,060 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 04:23:34,060 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-12-23 04:23:34,060 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-12-23 04:23:34,060 INFO L87 Difference]: Start difference. First operand 3386 states and 3426 transitions. Second operand 4 states. [2020-12-23 04:23:35,157 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 04:23:35,158 INFO L93 Difference]: Finished difference Result 4278 states and 4333 transitions. [2020-12-23 04:23:35,158 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-12-23 04:23:35,158 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 1813 [2020-12-23 04:23:35,159 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 04:23:35,163 INFO L225 Difference]: With dead ends: 4278 [2020-12-23 04:23:35,163 INFO L226 Difference]: Without dead ends: 4098 [2020-12-23 04:23:35,164 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-12-23 04:23:35,166 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4098 states. [2020-12-23 04:23:35,194 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4098 to 3742. [2020-12-23 04:23:35,194 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3742 states. [2020-12-23 04:23:35,199 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3742 states to 3742 states and 3791 transitions. [2020-12-23 04:23:35,199 INFO L78 Accepts]: Start accepts. Automaton has 3742 states and 3791 transitions. Word has length 1813 [2020-12-23 04:23:35,201 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 04:23:35,201 INFO L481 AbstractCegarLoop]: Abstraction has 3742 states and 3791 transitions. [2020-12-23 04:23:35,201 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-12-23 04:23:35,201 INFO L276 IsEmpty]: Start isEmpty. Operand 3742 states and 3791 transitions. [2020-12-23 04:23:35,237 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 2015 [2020-12-23 04:23:35,237 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 04:23:35,239 INFO L422 BasicCegarLoop]: trace histogram [18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 16, 16, 16, 14, 14, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 12, 12, 12, 12, 11, 10, 10, 10, 9, 9, 9, 9, 8, 7, 7, 7, 7, 7, 7, 7, 6, 6, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2020-12-23 04:23:35,239 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2020-12-23 04:23:35,239 INFO L429 AbstractCegarLoop]: === Iteration 27 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-23 04:23:35,239 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 04:23:35,240 INFO L82 PathProgramCache]: Analyzing trace with hash 891606446, now seen corresponding path program 1 times [2020-12-23 04:23:35,240 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 04:23:35,240 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [992587860] [2020-12-23 04:23:35,241 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 04:23:35,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 04:23:40,800 INFO L134 CoverageAnalysis]: Checked inductivity of 13756 backedges. 9287 proven. 184 refuted. 0 times theorem prover too weak. 4285 trivial. 0 not checked. [2020-12-23 04:23:40,800 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [992587860] [2020-12-23 04:23:40,800 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1680463146] [2020-12-23 04:23:40,800 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 15 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 15 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-23 04:23:41,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 04:23:41,395 INFO L263 TraceCheckSpWp]: Trace formula consists of 2467 conjuncts, 3 conjunts are in the unsatisfiable core [2020-12-23 04:23:41,413 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-23 04:23:46,164 INFO L134 CoverageAnalysis]: Checked inductivity of 13756 backedges. 4568 proven. 0 refuted. 0 times theorem prover too weak. 9188 trivial. 0 not checked. [2020-12-23 04:23:46,165 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2020-12-23 04:23:46,166 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [5] total 7 [2020-12-23 04:23:46,166 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1626547068] [2020-12-23 04:23:46,167 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-12-23 04:23:46,167 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 04:23:46,168 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-12-23 04:23:46,168 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=35, Unknown=0, NotChecked=0, Total=56 [2020-12-23 04:23:46,168 INFO L87 Difference]: Start difference. First operand 3742 states and 3791 transitions. Second operand 4 states. [2020-12-23 04:23:47,138 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 04:23:47,139 INFO L93 Difference]: Finished difference Result 4990 states and 5065 transitions. [2020-12-23 04:23:47,139 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-12-23 04:23:47,139 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 2014 [2020-12-23 04:23:47,141 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 04:23:47,143 INFO L225 Difference]: With dead ends: 4990 [2020-12-23 04:23:47,143 INFO L226 Difference]: Without dead ends: 3742 [2020-12-23 04:23:47,144 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 2018 GetRequests, 2012 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=35, Unknown=0, NotChecked=0, Total=56 [2020-12-23 04:23:47,146 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3742 states. [2020-12-23 04:23:47,171 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3742 to 3742. [2020-12-23 04:23:47,171 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3742 states. [2020-12-23 04:23:47,175 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3742 states to 3742 states and 3785 transitions. [2020-12-23 04:23:47,175 INFO L78 Accepts]: Start accepts. Automaton has 3742 states and 3785 transitions. Word has length 2014 [2020-12-23 04:23:47,176 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 04:23:47,176 INFO L481 AbstractCegarLoop]: Abstraction has 3742 states and 3785 transitions. [2020-12-23 04:23:47,176 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-12-23 04:23:47,176 INFO L276 IsEmpty]: Start isEmpty. Operand 3742 states and 3785 transitions. [2020-12-23 04:23:47,206 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 2116 [2020-12-23 04:23:47,206 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 04:23:47,207 INFO L422 BasicCegarLoop]: trace histogram [18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 16, 16, 16, 15, 15, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 13, 13, 13, 13, 12, 11, 11, 11, 10, 10, 10, 10, 9, 8, 8, 8, 8, 8, 8, 8, 7, 7, 6, 6, 6, 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, 4, 4, 4, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-23 04:23:47,407 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26,15 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-23 04:23:47,408 INFO L429 AbstractCegarLoop]: === Iteration 28 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-23 04:23:47,409 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 04:23:47,410 INFO L82 PathProgramCache]: Analyzing trace with hash 58677289, now seen corresponding path program 1 times [2020-12-23 04:23:47,410 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 04:23:47,410 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1897610979] [2020-12-23 04:23:47,411 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 04:23:47,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 04:23:50,147 INFO L134 CoverageAnalysis]: Checked inductivity of 14461 backedges. 3142 proven. 0 refuted. 0 times theorem prover too weak. 11319 trivial. 0 not checked. [2020-12-23 04:23:50,148 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1897610979] [2020-12-23 04:23:50,148 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-23 04:23:50,148 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-12-23 04:23:50,148 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [510134903] [2020-12-23 04:23:50,149 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-12-23 04:23:50,149 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 04:23:50,150 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-12-23 04:23:50,150 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-12-23 04:23:50,150 INFO L87 Difference]: Start difference. First operand 3742 states and 3785 transitions. Second operand 4 states. [2020-12-23 04:23:50,865 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 04:23:50,865 INFO L93 Difference]: Finished difference Result 3742 states and 3785 transitions. [2020-12-23 04:23:50,866 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-12-23 04:23:50,866 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 2115 [2020-12-23 04:23:50,868 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 04:23:50,869 INFO L225 Difference]: With dead ends: 3742 [2020-12-23 04:23:50,869 INFO L226 Difference]: Without dead ends: 0 [2020-12-23 04:23:50,871 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-12-23 04:23:50,871 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-12-23 04:23:50,871 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-12-23 04:23:50,871 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-12-23 04:23:50,871 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-12-23 04:23:50,871 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 2115 [2020-12-23 04:23:50,872 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 04:23:50,872 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-12-23 04:23:50,872 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-12-23 04:23:50,872 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-12-23 04:23:50,872 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-12-23 04:23:50,872 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2020-12-23 04:23:50,874 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-12-23 04:23:51,050 WARN L197 SmtUtils]: Spent 166.00 ms on a formula simplification. DAG size of input: 190 DAG size of output: 142 [2020-12-23 04:23:51,184 WARN L197 SmtUtils]: Spent 131.00 ms on a formula simplification. DAG size of input: 190 DAG size of output: 142 [2020-12-23 04:23:52,452 WARN L197 SmtUtils]: Spent 1.26 s on a formula simplification. DAG size of input: 131 DAG size of output: 74 [2020-12-23 04:23:53,787 WARN L197 SmtUtils]: Spent 1.33 s on a formula simplification. DAG size of input: 131 DAG size of output: 74 [2020-12-23 04:23:53,792 INFO L189 CegarLoopUtils]: For program point L762(lines 762 880) no Hoare annotation was computed. [2020-12-23 04:23:53,792 INFO L189 CegarLoopUtils]: For program point L895(line 895) no Hoare annotation was computed. [2020-12-23 04:23:53,792 INFO L189 CegarLoopUtils]: For program point L829(lines 829 880) no Hoare annotation was computed. [2020-12-23 04:23:53,792 INFO L189 CegarLoopUtils]: For program point L631(lines 631 880) no Hoare annotation was computed. [2020-12-23 04:23:53,792 INFO L189 CegarLoopUtils]: For program point L565(lines 565 880) no Hoare annotation was computed. [2020-12-23 04:23:53,792 INFO L189 CegarLoopUtils]: For program point L169-1(lines 30 882) no Hoare annotation was computed. [2020-12-23 04:23:53,793 INFO L189 CegarLoopUtils]: For program point L103-1(lines 30 882) no Hoare annotation was computed. [2020-12-23 04:23:53,793 INFO L189 CegarLoopUtils]: For program point L37-1(lines 30 882) no Hoare annotation was computed. [2020-12-23 04:23:53,793 INFO L189 CegarLoopUtils]: For program point L698(lines 698 880) no Hoare annotation was computed. [2020-12-23 04:23:53,793 INFO L189 CegarLoopUtils]: For program point L500(lines 500 880) no Hoare annotation was computed. [2020-12-23 04:23:53,793 INFO L189 CegarLoopUtils]: For program point L170(line 170) no Hoare annotation was computed. [2020-12-23 04:23:53,793 INFO L189 CegarLoopUtils]: For program point L104(line 104) no Hoare annotation was computed. [2020-12-23 04:23:53,793 INFO L189 CegarLoopUtils]: For program point L38(line 38) no Hoare annotation was computed. [2020-12-23 04:23:53,793 INFO L189 CegarLoopUtils]: For program point L369(lines 369 880) no Hoare annotation was computed. [2020-12-23 04:23:53,793 INFO L189 CegarLoopUtils]: For program point L303(lines 303 880) no Hoare annotation was computed. [2020-12-23 04:23:53,793 INFO L189 CegarLoopUtils]: For program point L436(lines 436 880) no Hoare annotation was computed. [2020-12-23 04:23:53,793 INFO L189 CegarLoopUtils]: For program point L172-1(lines 30 882) no Hoare annotation was computed. [2020-12-23 04:23:53,793 INFO L189 CegarLoopUtils]: For program point L106-1(lines 30 882) no Hoare annotation was computed. [2020-12-23 04:23:53,793 INFO L189 CegarLoopUtils]: For program point L40-1(lines 30 882) no Hoare annotation was computed. [2020-12-23 04:23:53,794 INFO L189 CegarLoopUtils]: For program point L239(lines 239 880) no Hoare annotation was computed. [2020-12-23 04:23:53,794 INFO L189 CegarLoopUtils]: For program point L173(line 173) no Hoare annotation was computed. [2020-12-23 04:23:53,794 INFO L189 CegarLoopUtils]: For program point L107(line 107) no Hoare annotation was computed. [2020-12-23 04:23:53,794 INFO L189 CegarLoopUtils]: For program point L41(line 41) no Hoare annotation was computed. [2020-12-23 04:23:53,794 INFO L189 CegarLoopUtils]: For program point L768(lines 768 880) no Hoare annotation was computed. [2020-12-23 04:23:53,794 INFO L189 CegarLoopUtils]: For program point L636(lines 636 880) no Hoare annotation was computed. [2020-12-23 04:23:53,794 INFO L189 CegarLoopUtils]: For program point L835(lines 835 880) no Hoare annotation was computed. [2020-12-23 04:23:53,794 INFO L189 CegarLoopUtils]: For program point L571(lines 571 880) no Hoare annotation was computed. [2020-12-23 04:23:53,794 INFO L189 CegarLoopUtils]: For program point L505(lines 505 880) no Hoare annotation was computed. [2020-12-23 04:23:53,794 INFO L189 CegarLoopUtils]: For program point L175-1(lines 30 882) no Hoare annotation was computed. [2020-12-23 04:23:53,794 INFO L189 CegarLoopUtils]: For program point L109-1(lines 30 882) no Hoare annotation was computed. [2020-12-23 04:23:53,794 INFO L189 CegarLoopUtils]: For program point L43-1(lines 30 882) no Hoare annotation was computed. [2020-12-23 04:23:53,794 INFO L189 CegarLoopUtils]: For program point L704(lines 704 880) no Hoare annotation was computed. [2020-12-23 04:23:53,794 INFO L189 CegarLoopUtils]: For program point L176(line 176) no Hoare annotation was computed. [2020-12-23 04:23:53,794 INFO L189 CegarLoopUtils]: For program point L110(line 110) no Hoare annotation was computed. [2020-12-23 04:23:53,795 INFO L189 CegarLoopUtils]: For program point L44(line 44) no Hoare annotation was computed. [2020-12-23 04:23:53,795 INFO L189 CegarLoopUtils]: For program point L309(lines 309 880) no Hoare annotation was computed. [2020-12-23 04:23:53,795 INFO L189 CegarLoopUtils]: For program point L442(lines 442 880) no Hoare annotation was computed. [2020-12-23 04:23:53,795 INFO L189 CegarLoopUtils]: For program point L376(lines 376 880) no Hoare annotation was computed. [2020-12-23 04:23:53,795 INFO L189 CegarLoopUtils]: For program point L178-1(lines 30 882) no Hoare annotation was computed. [2020-12-23 04:23:53,795 INFO L189 CegarLoopUtils]: For program point L112-1(lines 30 882) no Hoare annotation was computed. [2020-12-23 04:23:53,795 INFO L189 CegarLoopUtils]: For program point L46-1(lines 30 882) no Hoare annotation was computed. [2020-12-23 04:23:53,795 INFO L189 CegarLoopUtils]: For program point L245(lines 245 880) no Hoare annotation was computed. [2020-12-23 04:23:53,795 INFO L189 CegarLoopUtils]: For program point L179(line 179) no Hoare annotation was computed. [2020-12-23 04:23:53,795 INFO L189 CegarLoopUtils]: For program point L113(line 113) no Hoare annotation was computed. [2020-12-23 04:23:53,796 INFO L189 CegarLoopUtils]: For program point L47(line 47) no Hoare annotation was computed. [2020-12-23 04:23:53,796 INFO L189 CegarLoopUtils]: For program point L774(lines 774 880) no Hoare annotation was computed. [2020-12-23 04:23:53,796 INFO L189 CegarLoopUtils]: For program point L642(lines 642 880) no Hoare annotation was computed. [2020-12-23 04:23:53,796 INFO L189 CegarLoopUtils]: For program point L510(lines 510 880) no Hoare annotation was computed. [2020-12-23 04:23:53,796 INFO L189 CegarLoopUtils]: For program point L841(lines 841 880) no Hoare annotation was computed. [2020-12-23 04:23:53,796 INFO L189 CegarLoopUtils]: For program point L181-1(lines 30 882) no Hoare annotation was computed. [2020-12-23 04:23:53,796 INFO L189 CegarLoopUtils]: For program point L115-1(lines 30 882) no Hoare annotation was computed. [2020-12-23 04:23:53,796 INFO L189 CegarLoopUtils]: For program point L49-1(lines 30 882) no Hoare annotation was computed. [2020-12-23 04:23:53,796 INFO L189 CegarLoopUtils]: For program point L710(lines 710 880) no Hoare annotation was computed. [2020-12-23 04:23:53,796 INFO L189 CegarLoopUtils]: For program point L578(lines 578 880) no Hoare annotation was computed. [2020-12-23 04:23:53,797 INFO L189 CegarLoopUtils]: For program point L182(line 182) no Hoare annotation was computed. [2020-12-23 04:23:53,797 INFO L189 CegarLoopUtils]: For program point L116(line 116) no Hoare annotation was computed. [2020-12-23 04:23:53,797 INFO L189 CegarLoopUtils]: For program point L50(line 50) no Hoare annotation was computed. [2020-12-23 04:23:53,797 INFO L189 CegarLoopUtils]: For program point L315(lines 315 880) no Hoare annotation was computed. [2020-12-23 04:23:53,797 INFO L189 CegarLoopUtils]: For program point L448(lines 448 880) no Hoare annotation was computed. [2020-12-23 04:23:53,797 INFO L189 CegarLoopUtils]: For program point L382(lines 382 880) no Hoare annotation was computed. [2020-12-23 04:23:53,797 INFO L189 CegarLoopUtils]: For program point L184-1(lines 30 882) no Hoare annotation was computed. [2020-12-23 04:23:53,797 INFO L189 CegarLoopUtils]: For program point L118-1(lines 30 882) no Hoare annotation was computed. [2020-12-23 04:23:53,797 INFO L189 CegarLoopUtils]: For program point L52-1(lines 30 882) no Hoare annotation was computed. [2020-12-23 04:23:53,797 INFO L189 CegarLoopUtils]: For program point L251(lines 251 880) no Hoare annotation was computed. [2020-12-23 04:23:53,797 INFO L189 CegarLoopUtils]: For program point L185(line 185) no Hoare annotation was computed. [2020-12-23 04:23:53,797 INFO L189 CegarLoopUtils]: For program point L119(line 119) no Hoare annotation was computed. [2020-12-23 04:23:53,798 INFO L189 CegarLoopUtils]: For program point L53(line 53) no Hoare annotation was computed. [2020-12-23 04:23:53,798 INFO L189 CegarLoopUtils]: For program point L648(lines 648 880) no Hoare annotation was computed. [2020-12-23 04:23:53,798 INFO L189 CegarLoopUtils]: For program point L516(lines 516 880) no Hoare annotation was computed. [2020-12-23 04:23:53,798 INFO L189 CegarLoopUtils]: For program point L847(lines 847 880) no Hoare annotation was computed. [2020-12-23 04:23:53,798 INFO L189 CegarLoopUtils]: For program point L781(lines 781 880) no Hoare annotation was computed. [2020-12-23 04:23:53,798 INFO L189 CegarLoopUtils]: For program point L583(lines 583 880) no Hoare annotation was computed. [2020-12-23 04:23:53,798 INFO L189 CegarLoopUtils]: For program point L187-1(lines 30 882) no Hoare annotation was computed. [2020-12-23 04:23:53,798 INFO L189 CegarLoopUtils]: For program point L121-1(lines 30 882) no Hoare annotation was computed. [2020-12-23 04:23:53,798 INFO L189 CegarLoopUtils]: For program point L55-1(lines 30 882) no Hoare annotation was computed. [2020-12-23 04:23:53,798 INFO L189 CegarLoopUtils]: For program point L716(lines 716 880) no Hoare annotation was computed. [2020-12-23 04:23:53,798 INFO L189 CegarLoopUtils]: For program point L188(line 188) no Hoare annotation was computed. [2020-12-23 04:23:53,798 INFO L189 CegarLoopUtils]: For program point L122(line 122) no Hoare annotation was computed. [2020-12-23 04:23:53,798 INFO L189 CegarLoopUtils]: For program point L56(line 56) no Hoare annotation was computed. [2020-12-23 04:23:53,798 INFO L189 CegarLoopUtils]: For program point L321(lines 321 880) no Hoare annotation was computed. [2020-12-23 04:23:53,798 INFO L189 CegarLoopUtils]: For program point L454(lines 454 880) no Hoare annotation was computed. [2020-12-23 04:23:53,799 INFO L189 CegarLoopUtils]: For program point L388(lines 388 880) no Hoare annotation was computed. [2020-12-23 04:23:53,799 INFO L189 CegarLoopUtils]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-12-23 04:23:53,799 INFO L189 CegarLoopUtils]: For program point L190-1(lines 30 882) no Hoare annotation was computed. [2020-12-23 04:23:53,799 INFO L189 CegarLoopUtils]: For program point L124-1(lines 30 882) no Hoare annotation was computed. [2020-12-23 04:23:53,799 INFO L189 CegarLoopUtils]: For program point L58-1(lines 30 882) no Hoare annotation was computed. [2020-12-23 04:23:53,799 INFO L189 CegarLoopUtils]: For program point L257(lines 257 880) no Hoare annotation was computed. [2020-12-23 04:23:53,799 INFO L189 CegarLoopUtils]: For program point L191(line 191) no Hoare annotation was computed. [2020-12-23 04:23:53,799 INFO L189 CegarLoopUtils]: For program point L125(line 125) no Hoare annotation was computed. [2020-12-23 04:23:53,799 INFO L189 CegarLoopUtils]: For program point L59(line 59) no Hoare annotation was computed. [2020-12-23 04:23:53,799 INFO L189 CegarLoopUtils]: For program point L852(lines 852 880) no Hoare annotation was computed. [2020-12-23 04:23:53,799 INFO L189 CegarLoopUtils]: For program point L654(lines 654 880) no Hoare annotation was computed. [2020-12-23 04:23:53,799 INFO L189 CegarLoopUtils]: For program point L522(lines 522 880) no Hoare annotation was computed. [2020-12-23 04:23:53,799 INFO L189 CegarLoopUtils]: For program point L787(lines 787 880) no Hoare annotation was computed. [2020-12-23 04:23:53,799 INFO L189 CegarLoopUtils]: For program point L589(lines 589 880) no Hoare annotation was computed. [2020-12-23 04:23:53,799 INFO L189 CegarLoopUtils]: For program point L193-1(lines 30 882) no Hoare annotation was computed. [2020-12-23 04:23:53,800 INFO L189 CegarLoopUtils]: For program point L127-1(lines 30 882) no Hoare annotation was computed. [2020-12-23 04:23:53,800 INFO L189 CegarLoopUtils]: For program point L61-1(lines 30 882) no Hoare annotation was computed. [2020-12-23 04:23:53,800 INFO L189 CegarLoopUtils]: For program point L722(lines 722 880) no Hoare annotation was computed. [2020-12-23 04:23:53,800 INFO L189 CegarLoopUtils]: For program point L194(line 194) no Hoare annotation was computed. [2020-12-23 04:23:53,800 INFO L189 CegarLoopUtils]: For program point L128(line 128) no Hoare annotation was computed. [2020-12-23 04:23:53,800 INFO L189 CegarLoopUtils]: For program point L62(line 62) no Hoare annotation was computed. [2020-12-23 04:23:53,800 INFO L189 CegarLoopUtils]: For program point L459(lines 459 880) no Hoare annotation was computed. [2020-12-23 04:23:53,800 INFO L189 CegarLoopUtils]: For program point L327(lines 327 880) no Hoare annotation was computed. [2020-12-23 04:23:53,800 INFO L189 CegarLoopUtils]: For program point L394(lines 394 880) no Hoare annotation was computed. [2020-12-23 04:23:53,800 INFO L189 CegarLoopUtils]: For program point L262(lines 262 880) no Hoare annotation was computed. [2020-12-23 04:23:53,800 INFO L189 CegarLoopUtils]: For program point L196-1(lines 30 882) no Hoare annotation was computed. [2020-12-23 04:23:53,800 INFO L189 CegarLoopUtils]: For program point L130-1(lines 30 882) no Hoare annotation was computed. [2020-12-23 04:23:53,800 INFO L189 CegarLoopUtils]: For program point L64-1(lines 30 882) no Hoare annotation was computed. [2020-12-23 04:23:53,800 INFO L189 CegarLoopUtils]: For program point L197(line 197) no Hoare annotation was computed. [2020-12-23 04:23:53,800 INFO L189 CegarLoopUtils]: For program point L131(line 131) no Hoare annotation was computed. [2020-12-23 04:23:53,801 INFO L189 CegarLoopUtils]: For program point L65(line 65) no Hoare annotation was computed. [2020-12-23 04:23:53,801 INFO L189 CegarLoopUtils]: For program point L-1(line -1) no Hoare annotation was computed. [2020-12-23 04:23:53,801 INFO L189 CegarLoopUtils]: For program point L858(lines 858 880) no Hoare annotation was computed. [2020-12-23 04:23:53,801 INFO L189 CegarLoopUtils]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 119) no Hoare annotation was computed. [2020-12-23 04:23:53,801 INFO L189 CegarLoopUtils]: For program point L660(lines 660 880) no Hoare annotation was computed. [2020-12-23 04:23:53,801 INFO L189 CegarLoopUtils]: For program point L528(lines 528 880) no Hoare annotation was computed. [2020-12-23 04:23:53,801 INFO L189 CegarLoopUtils]: For program point L793(lines 793 880) no Hoare annotation was computed. [2020-12-23 04:23:53,801 INFO L189 CegarLoopUtils]: For program point L595(lines 595 880) no Hoare annotation was computed. [2020-12-23 04:23:53,801 INFO L189 CegarLoopUtils]: For program point L199-1(lines 30 882) no Hoare annotation was computed. [2020-12-23 04:23:53,801 INFO L189 CegarLoopUtils]: For program point L133-1(lines 30 882) no Hoare annotation was computed. [2020-12-23 04:23:53,801 INFO L189 CegarLoopUtils]: For program point L67-1(lines 30 882) no Hoare annotation was computed. [2020-12-23 04:23:53,802 INFO L189 CegarLoopUtils]: For program point L728(lines 728 880) no Hoare annotation was computed. [2020-12-23 04:23:53,802 INFO L189 CegarLoopUtils]: For program point L464(lines 464 880) no Hoare annotation was computed. [2020-12-23 04:23:53,802 INFO L189 CegarLoopUtils]: For program point L200(line 200) no Hoare annotation was computed. [2020-12-23 04:23:53,802 INFO L189 CegarLoopUtils]: For program point L134(line 134) no Hoare annotation was computed. [2020-12-23 04:23:53,802 INFO L189 CegarLoopUtils]: For program point L68(line 68) no Hoare annotation was computed. [2020-12-23 04:23:53,802 INFO L189 CegarLoopUtils]: For program point L333(lines 333 880) no Hoare annotation was computed. [2020-12-23 04:23:53,802 INFO L189 CegarLoopUtils]: For program point L400(lines 400 880) no Hoare annotation was computed. [2020-12-23 04:23:53,802 INFO L189 CegarLoopUtils]: For program point L268(lines 268 880) no Hoare annotation was computed. [2020-12-23 04:23:53,802 INFO L189 CegarLoopUtils]: For program point L202-1(lines 30 882) no Hoare annotation was computed. [2020-12-23 04:23:53,802 INFO L189 CegarLoopUtils]: For program point L136-1(lines 30 882) no Hoare annotation was computed. [2020-12-23 04:23:53,802 INFO L189 CegarLoopUtils]: For program point L70-1(lines 30 882) no Hoare annotation was computed. [2020-12-23 04:23:53,802 INFO L189 CegarLoopUtils]: For program point L203(line 203) no Hoare annotation was computed. [2020-12-23 04:23:53,802 INFO L189 CegarLoopUtils]: For program point L137(line 137) no Hoare annotation was computed. [2020-12-23 04:23:53,802 INFO L189 CegarLoopUtils]: For program point L71(line 71) no Hoare annotation was computed. [2020-12-23 04:23:53,802 INFO L189 CegarLoopUtils]: For program point L864(lines 864 880) no Hoare annotation was computed. [2020-12-23 04:23:53,802 INFO L189 CegarLoopUtils]: For program point L666(lines 666 880) no Hoare annotation was computed. [2020-12-23 04:23:53,802 INFO L189 CegarLoopUtils]: For program point L534(lines 534 880) no Hoare annotation was computed. [2020-12-23 04:23:53,803 INFO L189 CegarLoopUtils]: For program point L799(lines 799 880) no Hoare annotation was computed. [2020-12-23 04:23:53,803 INFO L189 CegarLoopUtils]: For program point L601(lines 601 880) no Hoare annotation was computed. [2020-12-23 04:23:53,803 INFO L189 CegarLoopUtils]: For program point L205-1(lines 30 882) no Hoare annotation was computed. [2020-12-23 04:23:53,803 INFO L189 CegarLoopUtils]: For program point L139-1(lines 30 882) no Hoare annotation was computed. [2020-12-23 04:23:53,803 INFO L189 CegarLoopUtils]: For program point L73-1(lines 30 882) no Hoare annotation was computed. [2020-12-23 04:23:53,803 INFO L189 CegarLoopUtils]: For program point L734(lines 734 880) no Hoare annotation was computed. [2020-12-23 04:23:53,803 INFO L189 CegarLoopUtils]: For program point L470(lines 470 880) no Hoare annotation was computed. [2020-12-23 04:23:53,803 INFO L189 CegarLoopUtils]: For program point L206(line 206) no Hoare annotation was computed. [2020-12-23 04:23:53,803 INFO L189 CegarLoopUtils]: For program point L140(line 140) no Hoare annotation was computed. [2020-12-23 04:23:53,803 INFO L189 CegarLoopUtils]: For program point L74(line 74) no Hoare annotation was computed. [2020-12-23 04:23:53,803 INFO L189 CegarLoopUtils]: For program point L339(lines 339 880) no Hoare annotation was computed. [2020-12-23 04:23:53,803 INFO L189 CegarLoopUtils]: For program point L406(lines 406 880) no Hoare annotation was computed. [2020-12-23 04:23:53,803 INFO L189 CegarLoopUtils]: For program point L274(lines 274 880) no Hoare annotation was computed. [2020-12-23 04:23:53,803 INFO L189 CegarLoopUtils]: For program point L208-1(lines 30 882) no Hoare annotation was computed. [2020-12-23 04:23:53,803 INFO L189 CegarLoopUtils]: For program point L142-1(lines 30 882) no Hoare annotation was computed. [2020-12-23 04:23:53,803 INFO L189 CegarLoopUtils]: For program point L76-1(lines 30 882) no Hoare annotation was computed. [2020-12-23 04:23:53,804 INFO L189 CegarLoopUtils]: For program point L869(lines 869 880) no Hoare annotation was computed. [2020-12-23 04:23:53,804 INFO L189 CegarLoopUtils]: For program point L209(line 209) no Hoare annotation was computed. [2020-12-23 04:23:53,804 INFO L189 CegarLoopUtils]: For program point L143(line 143) no Hoare annotation was computed. [2020-12-23 04:23:53,804 INFO L189 CegarLoopUtils]: For program point L77(line 77) no Hoare annotation was computed. [2020-12-23 04:23:53,804 INFO L189 CegarLoopUtils]: For program point L672(lines 672 880) no Hoare annotation was computed. [2020-12-23 04:23:53,804 INFO L189 CegarLoopUtils]: For program point L540(lines 540 880) no Hoare annotation was computed. [2020-12-23 04:23:53,804 INFO L189 CegarLoopUtils]: For program point L805(lines 805 880) no Hoare annotation was computed. [2020-12-23 04:23:53,804 INFO L189 CegarLoopUtils]: For program point L607(lines 607 880) no Hoare annotation was computed. [2020-12-23 04:23:53,804 INFO L189 CegarLoopUtils]: For program point L211-1(lines 30 882) no Hoare annotation was computed. [2020-12-23 04:23:53,804 INFO L189 CegarLoopUtils]: For program point L145-1(lines 30 882) no Hoare annotation was computed. [2020-12-23 04:23:53,804 INFO L189 CegarLoopUtils]: For program point L79-1(lines 30 882) no Hoare annotation was computed. [2020-12-23 04:23:53,804 INFO L189 CegarLoopUtils]: For program point L740(lines 740 880) no Hoare annotation was computed. [2020-12-23 04:23:53,804 INFO L189 CegarLoopUtils]: For program point L212(line 212) no Hoare annotation was computed. [2020-12-23 04:23:53,804 INFO L189 CegarLoopUtils]: For program point L146(line 146) no Hoare annotation was computed. [2020-12-23 04:23:53,804 INFO L189 CegarLoopUtils]: For program point L80(line 80) no Hoare annotation was computed. [2020-12-23 04:23:53,804 INFO L189 CegarLoopUtils]: For program point L477(lines 477 880) no Hoare annotation was computed. [2020-12-23 04:23:53,804 INFO L189 CegarLoopUtils]: For program point L345(lines 345 880) no Hoare annotation was computed. [2020-12-23 04:23:53,805 INFO L189 CegarLoopUtils]: For program point L279(lines 279 880) no Hoare annotation was computed. [2020-12-23 04:23:53,805 INFO L189 CegarLoopUtils]: For program point L412(lines 412 880) no Hoare annotation was computed. [2020-12-23 04:23:53,805 INFO L189 CegarLoopUtils]: For program point L148-1(lines 30 882) no Hoare annotation was computed. [2020-12-23 04:23:53,805 INFO L189 CegarLoopUtils]: For program point L82-1(lines 30 882) no Hoare annotation was computed. [2020-12-23 04:23:53,805 INFO L189 CegarLoopUtils]: For program point L875(lines 875 880) no Hoare annotation was computed. [2020-12-23 04:23:53,805 INFO L189 CegarLoopUtils]: For program point L149(line 149) no Hoare annotation was computed. [2020-12-23 04:23:53,805 INFO L189 CegarLoopUtils]: For program point L83(line 83) no Hoare annotation was computed. [2020-12-23 04:23:53,805 INFO L189 CegarLoopUtils]: For program point L678(lines 678 880) no Hoare annotation was computed. [2020-12-23 04:23:53,805 INFO L189 CegarLoopUtils]: For program point L546(lines 546 880) no Hoare annotation was computed. [2020-12-23 04:23:53,805 INFO L189 CegarLoopUtils]: For program point L811(lines 811 880) no Hoare annotation was computed. [2020-12-23 04:23:53,805 INFO L189 CegarLoopUtils]: For program point L745(lines 745 880) no Hoare annotation was computed. [2020-12-23 04:23:53,805 INFO L189 CegarLoopUtils]: For program point L613(lines 613 880) no Hoare annotation was computed. [2020-12-23 04:23:53,805 INFO L189 CegarLoopUtils]: For program point L151-1(lines 30 882) no Hoare annotation was computed. [2020-12-23 04:23:53,805 INFO L189 CegarLoopUtils]: For program point L85-1(lines 30 882) no Hoare annotation was computed. [2020-12-23 04:23:53,805 INFO L189 CegarLoopUtils]: For program point L482(lines 482 880) no Hoare annotation was computed. [2020-12-23 04:23:53,805 INFO L189 CegarLoopUtils]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2020-12-23 04:23:53,806 INFO L189 CegarLoopUtils]: For program point L152(line 152) no Hoare annotation was computed. [2020-12-23 04:23:53,806 INFO L189 CegarLoopUtils]: For program point L86(line 86) no Hoare annotation was computed. [2020-12-23 04:23:53,806 INFO L189 CegarLoopUtils]: For program point L351(lines 351 880) no Hoare annotation was computed. [2020-12-23 04:23:53,806 INFO L189 CegarLoopUtils]: For program point L285(lines 285 880) no Hoare annotation was computed. [2020-12-23 04:23:53,806 INFO L189 CegarLoopUtils]: For program point L418(lines 418 880) no Hoare annotation was computed. [2020-12-23 04:23:53,806 INFO L189 CegarLoopUtils]: For program point L154-1(lines 30 882) no Hoare annotation was computed. [2020-12-23 04:23:53,806 INFO L189 CegarLoopUtils]: For program point L88-1(lines 30 882) no Hoare annotation was computed. [2020-12-23 04:23:53,807 INFO L185 CegarLoopUtils]: At program point L881(lines 30 882) the Hoare annotation is: (let ((.cse12 (<= ~a12~0 11)) (.cse5 (<= ~a21~0 7)) (.cse1 (= ~a24~0 1)) (.cse4 (<= ~a15~0 8))) (let ((.cse3 (<= ~a12~0 76)) (.cse0 (<= 8 ~a21~0)) (.cse2 (<= ~a21~0 8)) (.cse11 (+ ~a12~0 43)) (.cse6 (< 80 ~a12~0)) (.cse8 (<= ~a15~0 6)) (.cse10 (or (and .cse5 .cse12 .cse1 .cse4) (and .cse5 (<= 7 ~a21~0) .cse1 .cse4))) (.cse9 (<= ~a15~0 7)) (.cse7 (<= 10 ~a21~0))) (or (and (<= 8 ~a15~0) .cse0 .cse1 .cse2 .cse3) (and .cse4 (or (and .cse5 .cse6 .cse1) (and .cse6 .cse1 .cse7))) (and .cse6 .cse1 (<= ~a12~0 73282) .cse2) (and (<= 9 ~a21~0) .cse1 .cse4 (<= ~a21~0 9) .cse3) (and (<= (+ ~a12~0 49) 0) .cse1 .cse4) (and .cse0 .cse1 (<= (+ ~a12~0 42) 0) .cse2) (and (<= (+ ~a12~0 9352) 0) (<= ~a21~0 6) .cse8) (and .cse9 .cse1 .cse7) (and .cse6 .cse1 (<= 9 ~a15~0) (<= ~a12~0 599999)) (and .cse10 (< 0 .cse11) .cse12) (and .cse5 (<= ~a24~0 1) (<= .cse11 0) .cse8) (and .cse9 .cse6 .cse1) (and .cse1 .cse8) (and .cse10 .cse9) (and .cse12 .cse1 .cse7)))) [2020-12-23 04:23:53,807 INFO L189 CegarLoopUtils]: For program point L551(lines 551 880) no Hoare annotation was computed. [2020-12-23 04:23:53,807 INFO L189 CegarLoopUtils]: For program point L221(lines 221 880) no Hoare annotation was computed. [2020-12-23 04:23:53,807 INFO L189 CegarLoopUtils]: For program point L155(line 155) no Hoare annotation was computed. [2020-12-23 04:23:53,807 INFO L189 CegarLoopUtils]: For program point L89(line 89) no Hoare annotation was computed. [2020-12-23 04:23:53,807 INFO L189 CegarLoopUtils]: For program point L684(lines 684 880) no Hoare annotation was computed. [2020-12-23 04:23:53,807 INFO L189 CegarLoopUtils]: For program point L817(lines 817 880) no Hoare annotation was computed. [2020-12-23 04:23:53,807 INFO L189 CegarLoopUtils]: For program point L751(lines 751 880) no Hoare annotation was computed. [2020-12-23 04:23:53,807 INFO L189 CegarLoopUtils]: For program point L619(lines 619 880) no Hoare annotation was computed. [2020-12-23 04:23:53,807 INFO L189 CegarLoopUtils]: For program point L157-1(lines 30 882) no Hoare annotation was computed. [2020-12-23 04:23:53,807 INFO L189 CegarLoopUtils]: For program point L91-1(lines 30 882) no Hoare annotation was computed. [2020-12-23 04:23:53,807 INFO L192 CegarLoopUtils]: At program point L884(lines 884 900) the Hoare annotation is: true [2020-12-23 04:23:53,807 INFO L189 CegarLoopUtils]: For program point L488(lines 488 880) no Hoare annotation was computed. [2020-12-23 04:23:53,808 INFO L189 CegarLoopUtils]: For program point L290(lines 290 880) no Hoare annotation was computed. [2020-12-23 04:23:53,808 INFO L189 CegarLoopUtils]: For program point L158(line 158) no Hoare annotation was computed. [2020-12-23 04:23:53,808 INFO L189 CegarLoopUtils]: For program point L92(line 92) no Hoare annotation was computed. [2020-12-23 04:23:53,808 INFO L189 CegarLoopUtils]: For program point L687(lines 687 880) no Hoare annotation was computed. [2020-12-23 04:23:53,808 INFO L189 CegarLoopUtils]: For program point L357(lines 357 880) no Hoare annotation was computed. [2020-12-23 04:23:53,808 INFO L189 CegarLoopUtils]: For program point L424(lines 424 880) no Hoare annotation was computed. [2020-12-23 04:23:53,808 INFO L189 CegarLoopUtils]: For program point L160-1(lines 30 882) no Hoare annotation was computed. [2020-12-23 04:23:53,808 INFO L189 CegarLoopUtils]: For program point L94-1(lines 30 882) no Hoare annotation was computed. [2020-12-23 04:23:53,808 INFO L189 CegarLoopUtils]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-12-23 04:23:53,808 INFO L189 CegarLoopUtils]: For program point L557(lines 557 880) no Hoare annotation was computed. [2020-12-23 04:23:53,808 INFO L189 CegarLoopUtils]: For program point L227(lines 227 880) no Hoare annotation was computed. [2020-12-23 04:23:53,808 INFO L189 CegarLoopUtils]: For program point L161(line 161) no Hoare annotation was computed. [2020-12-23 04:23:53,808 INFO L189 CegarLoopUtils]: For program point L95(line 95) no Hoare annotation was computed. [2020-12-23 04:23:53,808 INFO L189 CegarLoopUtils]: For program point L757(lines 757 880) no Hoare annotation was computed. [2020-12-23 04:23:53,808 INFO L189 CegarLoopUtils]: For program point L625(lines 625 880) no Hoare annotation was computed. [2020-12-23 04:23:53,809 INFO L189 CegarLoopUtils]: For program point L163-1(lines 30 882) no Hoare annotation was computed. [2020-12-23 04:23:53,809 INFO L189 CegarLoopUtils]: For program point L97-1(lines 30 882) no Hoare annotation was computed. [2020-12-23 04:23:53,809 INFO L189 CegarLoopUtils]: For program point L31(lines 31 33) no Hoare annotation was computed. [2020-12-23 04:23:53,809 INFO L189 CegarLoopUtils]: For program point L31-2(lines 30 882) no Hoare annotation was computed. [2020-12-23 04:23:53,809 INFO L189 CegarLoopUtils]: For program point L824(lines 824 880) no Hoare annotation was computed. [2020-12-23 04:23:53,809 INFO L185 CegarLoopUtils]: At program point L890-2(lines 890 899) the Hoare annotation is: (let ((.cse12 (<= ~a12~0 11)) (.cse5 (<= ~a21~0 7)) (.cse1 (= ~a24~0 1)) (.cse4 (<= ~a15~0 8))) (let ((.cse3 (<= ~a12~0 76)) (.cse0 (<= 8 ~a21~0)) (.cse2 (<= ~a21~0 8)) (.cse11 (+ ~a12~0 43)) (.cse6 (< 80 ~a12~0)) (.cse8 (<= ~a15~0 6)) (.cse10 (or (and .cse5 .cse12 .cse1 .cse4) (and .cse5 (<= 7 ~a21~0) .cse1 .cse4))) (.cse9 (<= ~a15~0 7)) (.cse7 (<= 10 ~a21~0))) (or (and (<= 8 ~a15~0) .cse0 .cse1 .cse2 .cse3) (and .cse4 (or (and .cse5 .cse6 .cse1) (and .cse6 .cse1 .cse7))) (and .cse6 .cse1 (<= ~a12~0 73282) .cse2) (and (<= 9 ~a21~0) .cse1 .cse4 (<= ~a21~0 9) .cse3) (and (<= (+ ~a12~0 49) 0) .cse1 .cse4) (and .cse0 .cse1 (<= (+ ~a12~0 42) 0) .cse2) (and (<= (+ ~a12~0 9352) 0) (<= ~a21~0 6) .cse8) (and .cse9 .cse1 .cse7) (and .cse6 .cse1 (<= 9 ~a15~0) (<= ~a12~0 599999)) (and .cse10 (< 0 .cse11) .cse12) (and .cse5 (<= ~a24~0 1) (<= .cse11 0) .cse8) (and .cse9 .cse6 .cse1) (and .cse1 .cse8) (and .cse10 .cse9) (and .cse12 .cse1 .cse7)))) [2020-12-23 04:23:53,809 INFO L189 CegarLoopUtils]: For program point L494(lines 494 880) no Hoare annotation was computed. [2020-12-23 04:23:53,809 INFO L189 CegarLoopUtils]: For program point L296(lines 296 880) no Hoare annotation was computed. [2020-12-23 04:23:53,809 INFO L189 CegarLoopUtils]: For program point L164(line 164) no Hoare annotation was computed. [2020-12-23 04:23:53,810 INFO L189 CegarLoopUtils]: For program point L98(line 98) no Hoare annotation was computed. [2020-12-23 04:23:53,810 INFO L189 CegarLoopUtils]: For program point L32(line 32) no Hoare annotation was computed. [2020-12-23 04:23:53,810 INFO L189 CegarLoopUtils]: For program point L693(lines 693 880) no Hoare annotation was computed. [2020-12-23 04:23:53,810 INFO L189 CegarLoopUtils]: For program point L363(lines 363 880) no Hoare annotation was computed. [2020-12-23 04:23:53,810 INFO L189 CegarLoopUtils]: For program point L562(lines 562 880) no Hoare annotation was computed. [2020-12-23 04:23:53,810 INFO L189 CegarLoopUtils]: For program point L430(lines 430 880) no Hoare annotation was computed. [2020-12-23 04:23:53,810 INFO L189 CegarLoopUtils]: For program point L166-1(lines 30 882) no Hoare annotation was computed. [2020-12-23 04:23:53,810 INFO L189 CegarLoopUtils]: For program point L100-1(lines 30 882) no Hoare annotation was computed. [2020-12-23 04:23:53,810 INFO L189 CegarLoopUtils]: For program point L34-1(lines 30 882) no Hoare annotation was computed. [2020-12-23 04:23:53,810 INFO L189 CegarLoopUtils]: For program point L233(lines 233 880) no Hoare annotation was computed. [2020-12-23 04:23:53,810 INFO L189 CegarLoopUtils]: For program point L167(line 167) no Hoare annotation was computed. [2020-12-23 04:23:53,810 INFO L189 CegarLoopUtils]: For program point L101(line 101) no Hoare annotation was computed. [2020-12-23 04:23:53,810 INFO L189 CegarLoopUtils]: For program point L35(line 35) no Hoare annotation was computed. [2020-12-23 04:23:53,842 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 23.12 04:23:53 BoogieIcfgContainer [2020-12-23 04:23:53,842 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-12-23 04:23:53,843 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-12-23 04:23:53,843 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-12-23 04:23:53,843 INFO L275 PluginConnector]: Witness Printer initialized [2020-12-23 04:23:53,844 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.12 04:22:20" (3/4) ... [2020-12-23 04:23:53,848 INFO L137 WitnessPrinter]: Generating witness for correct program [2020-12-23 04:23:53,880 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 8 nodes and edges [2020-12-23 04:23:53,882 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2020-12-23 04:23:53,884 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-12-23 04:23:53,885 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-12-23 04:23:54,028 INFO L141 WitnessManager]: Wrote witness to /storage/repos/svcomp/c/eca-rers2012/Problem14_label51.c-witness.graphml [2020-12-23 04:23:54,028 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-12-23 04:23:54,029 INFO L168 Benchmark]: Toolchain (without parser) took 96897.95 ms. Allocated memory was 153.1 MB in the beginning and 2.0 GB in the end (delta: 1.8 GB). Free memory was 126.6 MB in the beginning and 1.4 GB in the end (delta: -1.2 GB). Peak memory consumption was 555.4 MB. Max. memory is 8.0 GB. [2020-12-23 04:23:54,030 INFO L168 Benchmark]: CDTParser took 0.25 ms. Allocated memory is still 153.1 MB. Free memory is still 126.0 MB. There was no memory consumed. Max. memory is 8.0 GB. [2020-12-23 04:23:54,030 INFO L168 Benchmark]: CACSL2BoogieTranslator took 1009.06 ms. Allocated memory is still 153.1 MB. Free memory was 126.4 MB in the beginning and 124.4 MB in the end (delta: 2.0 MB). Peak memory consumption was 26.4 MB. Max. memory is 8.0 GB. [2020-12-23 04:23:54,031 INFO L168 Benchmark]: Boogie Procedure Inliner took 140.23 ms. Allocated memory is still 153.1 MB. Free memory was 124.4 MB in the beginning and 114.9 MB in the end (delta: 9.4 MB). Peak memory consumption was 9.4 MB. Max. memory is 8.0 GB. [2020-12-23 04:23:54,031 INFO L168 Benchmark]: Boogie Preprocessor took 109.60 ms. Allocated memory is still 153.1 MB. Free memory was 114.9 MB in the beginning and 108.7 MB in the end (delta: 6.3 MB). Peak memory consumption was 6.3 MB. Max. memory is 8.0 GB. [2020-12-23 04:23:54,031 INFO L168 Benchmark]: RCFGBuilder took 1771.56 ms. Allocated memory is still 153.1 MB. Free memory was 108.7 MB in the beginning and 64.7 MB in the end (delta: 44.0 MB). Peak memory consumption was 68.1 MB. Max. memory is 8.0 GB. [2020-12-23 04:23:54,032 INFO L168 Benchmark]: TraceAbstraction took 93671.94 ms. Allocated memory was 153.1 MB in the beginning and 2.0 GB in the end (delta: 1.8 GB). Free memory was 64.2 MB in the beginning and 1.4 GB in the end (delta: -1.3 GB). Peak memory consumption was 473.5 MB. Max. memory is 8.0 GB. [2020-12-23 04:23:54,032 INFO L168 Benchmark]: Witness Printer took 185.40 ms. Allocated memory is still 2.0 GB. Free memory was 1.4 GB in the beginning and 1.4 GB in the end (delta: 19.4 MB). Peak memory consumption was 18.9 MB. Max. memory is 8.0 GB. [2020-12-23 04:23:54,034 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.25 ms. Allocated memory is still 153.1 MB. Free memory is still 126.0 MB. There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 1009.06 ms. Allocated memory is still 153.1 MB. Free memory was 126.4 MB in the beginning and 124.4 MB in the end (delta: 2.0 MB). Peak memory consumption was 26.4 MB. Max. memory is 8.0 GB. * Boogie Procedure Inliner took 140.23 ms. Allocated memory is still 153.1 MB. Free memory was 124.4 MB in the beginning and 114.9 MB in the end (delta: 9.4 MB). Peak memory consumption was 9.4 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 109.60 ms. Allocated memory is still 153.1 MB. Free memory was 114.9 MB in the beginning and 108.7 MB in the end (delta: 6.3 MB). Peak memory consumption was 6.3 MB. Max. memory is 8.0 GB. * RCFGBuilder took 1771.56 ms. Allocated memory is still 153.1 MB. Free memory was 108.7 MB in the beginning and 64.7 MB in the end (delta: 44.0 MB). Peak memory consumption was 68.1 MB. Max. memory is 8.0 GB. * TraceAbstraction took 93671.94 ms. Allocated memory was 153.1 MB in the beginning and 2.0 GB in the end (delta: 1.8 GB). Free memory was 64.2 MB in the beginning and 1.4 GB in the end (delta: -1.3 GB). Peak memory consumption was 473.5 MB. Max. memory is 8.0 GB. * Witness Printer took 185.40 ms. Allocated memory is still 2.0 GB. Free memory was 1.4 GB in the beginning and 1.4 GB in the end (delta: 19.4 MB). Peak memory consumption was 18.9 MB. Max. memory is 8.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 119]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 884]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 890]: Loop Invariant Derived loop invariant: (((((((((((((((((8 <= a15 && 8 <= a21) && a24 == 1) && a21 <= 8) && a12 <= 76) || (a15 <= 8 && (((a21 <= 7 && 80 < a12) && a24 == 1) || ((80 < a12 && a24 == 1) && 10 <= a21)))) || (((80 < a12 && a24 == 1) && a12 <= 73282) && a21 <= 8)) || ((((9 <= a21 && a24 == 1) && a15 <= 8) && a21 <= 9) && a12 <= 76)) || ((a12 + 49 <= 0 && a24 == 1) && a15 <= 8)) || (((8 <= a21 && a24 == 1) && a12 + 42 <= 0) && a21 <= 8)) || ((a12 + 9352 <= 0 && a21 <= 6) && a15 <= 6)) || ((a15 <= 7 && a24 == 1) && 10 <= a21)) || (((80 < a12 && a24 == 1) && 9 <= a15) && a12 <= 599999)) || ((((((a21 <= 7 && a12 <= 11) && a24 == 1) && a15 <= 8) || (((a21 <= 7 && 7 <= a21) && a24 == 1) && a15 <= 8)) && 0 < a12 + 43) && a12 <= 11)) || (((a21 <= 7 && a24 <= 1) && a12 + 43 <= 0) && a15 <= 6)) || ((a15 <= 7 && 80 < a12) && a24 == 1)) || (a24 == 1 && a15 <= 6)) || (((((a21 <= 7 && a12 <= 11) && a24 == 1) && a15 <= 8) || (((a21 <= 7 && 7 <= a21) && a24 == 1) && a15 <= 8)) && a15 <= 7)) || ((a12 <= 11 && a24 == 1) && 10 <= a21) - InvariantResult [Line: 30]: Loop Invariant Derived loop invariant: (((((((((((((((((8 <= a15 && 8 <= a21) && a24 == 1) && a21 <= 8) && a12 <= 76) || (a15 <= 8 && (((a21 <= 7 && 80 < a12) && a24 == 1) || ((80 < a12 && a24 == 1) && 10 <= a21)))) || (((80 < a12 && a24 == 1) && a12 <= 73282) && a21 <= 8)) || ((((9 <= a21 && a24 == 1) && a15 <= 8) && a21 <= 9) && a12 <= 76)) || ((a12 + 49 <= 0 && a24 == 1) && a15 <= 8)) || (((8 <= a21 && a24 == 1) && a12 + 42 <= 0) && a21 <= 8)) || ((a12 + 9352 <= 0 && a21 <= 6) && a15 <= 6)) || ((a15 <= 7 && a24 == 1) && 10 <= a21)) || (((80 < a12 && a24 == 1) && 9 <= a15) && a12 <= 599999)) || ((((((a21 <= 7 && a12 <= 11) && a24 == 1) && a15 <= 8) || (((a21 <= 7 && 7 <= a21) && a24 == 1) && a15 <= 8)) && 0 < a12 + 43) && a12 <= 11)) || (((a21 <= 7 && a24 <= 1) && a12 + 43 <= 0) && a15 <= 6)) || ((a15 <= 7 && 80 < a12) && a24 == 1)) || (a24 == 1 && a15 <= 6)) || (((((a21 <= 7 && a12 <= 11) && a24 == 1) && a15 <= 8) || (((a21 <= 7 && 7 <= a21) && a24 == 1) && a15 <= 8)) && a15 <= 7)) || ((a12 <= 11 && a24 == 1) && 10 <= a21) - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 245 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 90.6s, OverallIterations: 28, TraceHistogramMax: 18, AutomataDifference: 25.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 2.9s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 3028 SDtfs, 3468 SDslu, 156 SDs, 0 SdLazy, 14326 SolverSat, 1261 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 17.3s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 12885 GetRequests, 12810 SyntacticMatches, 0 SemanticMatches, 75 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 34 ImplicationChecksByTransitivity, 0.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=4988occurred in iteration=13, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 1.6s AutomataMinimizationTime, 28 MinimizatonAttempts, 5696 StatesRemovedByMinimization, 15 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 3 LocationsWithAnnotation, 3 PreInvPairs, 91 NumberOfFragments, 485 HoareAnnotationTreeSize, 3 FomulaSimplifications, 5808 FormulaSimplificationTreeSizeReduction, 0.3s HoareSimplificationTime, 3 FomulaSimplificationsInter, 4130 FormulaSimplificationTreeSizeReductionInter, 2.5s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 1.1s SsaConstructionTime, 5.3s SatisfiabilityAnalysisTime, 29.0s InterpolantComputationTime, 37216 NumberOfCodeBlocks, 37216 NumberOfCodeBlocksAsserted, 42 NumberOfCheckSat, 37174 ConstructedInterpolants, 0 QuantifiedInterpolants, 112309249 SizeOfPredicates, 0 NumberOfNonLiveVariables, 16137 ConjunctsInSsa, 36 ConjunctsInUnsatCore, 42 InterpolantComputations, 27 PerfectInterpolantSequences, 148976/151743 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...