/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_label50.c -------------------------------------------------------------------------------- This is Ultimate 0.2.1-bitabs-178dd20 [2021-01-06 14:16:05,832 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-01-06 14:16:05,834 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-01-06 14:16:05,870 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-01-06 14:16:05,871 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-01-06 14:16:05,872 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-01-06 14:16:05,874 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-01-06 14:16:05,876 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-01-06 14:16:05,878 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-01-06 14:16:05,880 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-01-06 14:16:05,881 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-01-06 14:16:05,882 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-01-06 14:16:05,883 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-01-06 14:16:05,884 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-01-06 14:16:05,888 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-01-06 14:16:05,890 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-01-06 14:16:05,891 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-01-06 14:16:05,899 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-01-06 14:16:05,901 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-01-06 14:16:05,904 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-01-06 14:16:05,905 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-01-06 14:16:05,907 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-01-06 14:16:05,908 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-01-06 14:16:05,909 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-01-06 14:16:05,912 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2021-01-06 14:16:05,922 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-01-06 14:16:05,924 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-01-06 14:16:05,924 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-01-06 14:16:05,926 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2021-01-06 14:16:05,952 INFO L113 SettingsManager]: Loading preferences was successful [2021-01-06 14:16:05,953 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-01-06 14:16:05,954 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-01-06 14:16:05,955 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-01-06 14:16:05,955 INFO L138 SettingsManager]: * Use SBE=true [2021-01-06 14:16:05,955 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-01-06 14:16:05,956 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-01-06 14:16:05,956 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-01-06 14:16:05,956 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-01-06 14:16:05,957 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-01-06 14:16:05,957 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-01-06 14:16:05,957 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-01-06 14:16:05,957 INFO L138 SettingsManager]: * Use constant arrays=true [2021-01-06 14:16:05,958 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-01-06 14:16:05,958 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-01-06 14:16:05,958 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-01-06 14:16:05,959 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-01-06 14:16:05,959 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-01-06 14:16:05,959 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-01-06 14:16:05,960 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-01-06 14:16:05,960 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-01-06 14:16:05,960 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-01-06 14:16:05,960 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-01-06 14:16:05,961 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-01-06 14:16:05,961 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-01-06 14:16:05,961 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-01-06 14:16:06,374 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-01-06 14:16:06,423 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-01-06 14:16:06,426 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-01-06 14:16:06,427 INFO L271 PluginConnector]: Initializing CDTParser... [2021-01-06 14:16:06,428 INFO L275 PluginConnector]: CDTParser initialized [2021-01-06 14:16:06,429 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/eca-rers2012/Problem14_label50.c [2021-01-06 14:16:06,513 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/data/1826e26c5/fe522479e2874ac1bd61dc48cdd6230b/FLAGf4a4547b2 [2021-01-06 14:16:07,316 INFO L306 CDTParser]: Found 1 translation units. [2021-01-06 14:16:07,317 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-bitabs/releaseScripts/default/sv-benchmarks/c/eca-rers2012/Problem14_label50.c [2021-01-06 14:16:07,340 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/data/1826e26c5/fe522479e2874ac1bd61dc48cdd6230b/FLAGf4a4547b2 [2021-01-06 14:16:07,545 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/data/1826e26c5/fe522479e2874ac1bd61dc48cdd6230b [2021-01-06 14:16:07,553 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-01-06 14:16:07,555 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-01-06 14:16:07,557 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-01-06 14:16:07,557 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-01-06 14:16:07,561 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-01-06 14:16:07,561 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.01 02:16:07" (1/1) ... [2021-01-06 14:16:07,563 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4f6c9c32 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.01 02:16:07, skipping insertion in model container [2021-01-06 14:16:07,563 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.01 02:16:07" (1/1) ... [2021-01-06 14:16:07,573 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-01-06 14:16:07,621 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-01-06 14:16:07,862 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_label50.c[3933,3946] 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,] [2021-01-06 14:16:08,113 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-01-06 14:16:08,128 INFO L203 MainTranslator]: Completed pre-run [2021-01-06 14:16:08,174 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_label50.c[3933,3946] 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,] [2021-01-06 14:16:08,391 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-01-06 14:16:08,410 INFO L208 MainTranslator]: Completed translation [2021-01-06 14:16:08,411 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.01 02:16:08 WrapperNode [2021-01-06 14:16:08,411 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-01-06 14:16:08,413 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-01-06 14:16:08,413 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-01-06 14:16:08,413 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-01-06 14:16:08,421 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.01 02:16:08" (1/1) ... [2021-01-06 14:16:08,455 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.01 02:16:08" (1/1) ... [2021-01-06 14:16:08,537 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-01-06 14:16:08,538 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-01-06 14:16:08,538 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-01-06 14:16:08,539 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-01-06 14:16:08,548 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.01 02:16:08" (1/1) ... [2021-01-06 14:16:08,548 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.01 02:16:08" (1/1) ... [2021-01-06 14:16:08,554 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.01 02:16:08" (1/1) ... [2021-01-06 14:16:08,555 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.01 02:16:08" (1/1) ... [2021-01-06 14:16:08,588 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.01 02:16:08" (1/1) ... [2021-01-06 14:16:08,601 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.01 02:16:08" (1/1) ... [2021-01-06 14:16:08,615 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.01 02:16:08" (1/1) ... [2021-01-06 14:16:08,631 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-01-06 14:16:08,632 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-01-06 14:16:08,635 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-01-06 14:16:08,635 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-01-06 14:16:08,636 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.01 02:16:08" (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 [2021-01-06 14:16:08,739 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-01-06 14:16:08,739 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-01-06 14:16:08,740 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-01-06 14:16:08,740 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-01-06 14:16:10,384 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-01-06 14:16:10,385 INFO L299 CfgBuilder]: Removed 7 assume(true) statements. [2021-01-06 14:16:10,387 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.01 02:16:10 BoogieIcfgContainer [2021-01-06 14:16:10,387 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-01-06 14:16:10,389 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-01-06 14:16:10,389 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-01-06 14:16:10,392 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-01-06 14:16:10,393 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 06.01 02:16:07" (1/3) ... [2021-01-06 14:16:10,393 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@58b60d18 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.01 02:16:10, skipping insertion in model container [2021-01-06 14:16:10,394 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.01 02:16:08" (2/3) ... [2021-01-06 14:16:10,394 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@58b60d18 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.01 02:16:10, skipping insertion in model container [2021-01-06 14:16:10,394 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.01 02:16:10" (3/3) ... [2021-01-06 14:16:10,396 INFO L111 eAbstractionObserver]: Analyzing ICFG Problem14_label50.c [2021-01-06 14:16:10,402 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-01-06 14:16:10,408 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2021-01-06 14:16:10,427 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-01-06 14:16:10,456 INFO L377 AbstractCegarLoop]: Interprodecural is true [2021-01-06 14:16:10,456 INFO L378 AbstractCegarLoop]: Hoare is true [2021-01-06 14:16:10,456 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-01-06 14:16:10,456 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-01-06 14:16:10,457 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-01-06 14:16:10,457 INFO L382 AbstractCegarLoop]: Difference is false [2021-01-06 14:16:10,457 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-01-06 14:16:10,457 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-01-06 14:16:10,478 INFO L276 IsEmpty]: Start isEmpty. Operand 245 states. [2021-01-06 14:16:10,485 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2021-01-06 14:16:10,485 INFO L414 BasicCegarLoop]: Found error trace [2021-01-06 14:16:10,486 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, 1, 1] [2021-01-06 14:16:10,486 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-06 14:16:10,492 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-06 14:16:10,493 INFO L82 PathProgramCache]: Analyzing trace with hash 2088660649, now seen corresponding path program 1 times [2021-01-06 14:16:10,503 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-06 14:16:10,503 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1809997941] [2021-01-06 14:16:10,504 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-06 14:16:10,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-06 14:16:10,759 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-06 14:16:10,760 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1809997941] [2021-01-06 14:16:10,761 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-06 14:16:10,761 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-01-06 14:16:10,762 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1007039725] [2021-01-06 14:16:10,767 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-01-06 14:16:10,767 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-06 14:16:10,782 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-01-06 14:16:10,783 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-01-06 14:16:10,785 INFO L87 Difference]: Start difference. First operand 245 states. Second operand 3 states. [2021-01-06 14:16:11,928 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-06 14:16:11,928 INFO L93 Difference]: Finished difference Result 685 states and 1216 transitions. [2021-01-06 14:16:11,929 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-01-06 14:16:11,930 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 37 [2021-01-06 14:16:11,931 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-06 14:16:11,947 INFO L225 Difference]: With dead ends: 685 [2021-01-06 14:16:11,947 INFO L226 Difference]: Without dead ends: 360 [2021-01-06 14:16:11,952 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 [2021-01-06 14:16:11,972 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 360 states. [2021-01-06 14:16:12,017 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 360 to 360. [2021-01-06 14:16:12,019 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 360 states. [2021-01-06 14:16:12,020 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 360 states to 360 states and 510 transitions. [2021-01-06 14:16:12,022 INFO L78 Accepts]: Start accepts. Automaton has 360 states and 510 transitions. Word has length 37 [2021-01-06 14:16:12,022 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-06 14:16:12,022 INFO L481 AbstractCegarLoop]: Abstraction has 360 states and 510 transitions. [2021-01-06 14:16:12,023 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2021-01-06 14:16:12,023 INFO L276 IsEmpty]: Start isEmpty. Operand 360 states and 510 transitions. [2021-01-06 14:16:12,028 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 117 [2021-01-06 14:16:12,028 INFO L414 BasicCegarLoop]: Found error trace [2021-01-06 14:16:12,028 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, 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] [2021-01-06 14:16:12,029 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-01-06 14:16:12,029 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-06 14:16:12,030 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-06 14:16:12,030 INFO L82 PathProgramCache]: Analyzing trace with hash 592086039, now seen corresponding path program 1 times [2021-01-06 14:16:12,030 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-06 14:16:12,030 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [89343496] [2021-01-06 14:16:12,031 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-06 14:16:12,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-06 14:16:12,371 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 34 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-06 14:16:12,372 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [89343496] [2021-01-06 14:16:12,372 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-06 14:16:12,372 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-01-06 14:16:12,372 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [139331240] [2021-01-06 14:16:12,374 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-01-06 14:16:12,374 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-06 14:16:12,375 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-01-06 14:16:12,375 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-01-06 14:16:12,376 INFO L87 Difference]: Start difference. First operand 360 states and 510 transitions. Second operand 4 states. [2021-01-06 14:16:13,647 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-06 14:16:13,648 INFO L93 Difference]: Finished difference Result 1074 states and 1446 transitions. [2021-01-06 14:16:13,648 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-01-06 14:16:13,648 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 116 [2021-01-06 14:16:13,649 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-06 14:16:13,655 INFO L225 Difference]: With dead ends: 1074 [2021-01-06 14:16:13,655 INFO L226 Difference]: Without dead ends: 716 [2021-01-06 14:16:13,658 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 [2021-01-06 14:16:13,660 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 716 states. [2021-01-06 14:16:13,709 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 716 to 716. [2021-01-06 14:16:13,709 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 716 states. [2021-01-06 14:16:13,715 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 716 states to 716 states and 902 transitions. [2021-01-06 14:16:13,716 INFO L78 Accepts]: Start accepts. Automaton has 716 states and 902 transitions. Word has length 116 [2021-01-06 14:16:13,716 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-06 14:16:13,716 INFO L481 AbstractCegarLoop]: Abstraction has 716 states and 902 transitions. [2021-01-06 14:16:13,716 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2021-01-06 14:16:13,717 INFO L276 IsEmpty]: Start isEmpty. Operand 716 states and 902 transitions. [2021-01-06 14:16:13,732 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 143 [2021-01-06 14:16:13,732 INFO L414 BasicCegarLoop]: Found error trace [2021-01-06 14:16:13,733 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, 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] [2021-01-06 14:16:13,733 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-01-06 14:16:13,733 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-06 14:16:13,734 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-06 14:16:13,734 INFO L82 PathProgramCache]: Analyzing trace with hash 751763448, now seen corresponding path program 1 times [2021-01-06 14:16:13,734 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-06 14:16:13,735 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [853333935] [2021-01-06 14:16:13,735 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-06 14:16:13,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-06 14:16:14,022 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 0 proven. 16 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2021-01-06 14:16:14,023 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [853333935] [2021-01-06 14:16:14,023 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2145169162] [2021-01-06 14:16:14,023 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 [2021-01-06 14:16:14,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-06 14:16:14,122 INFO L263 TraceCheckSpWp]: Trace formula consists of 230 conjuncts, 2 conjunts are in the unsatisfiable core [2021-01-06 14:16:14,131 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-01-06 14:16:14,364 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2021-01-06 14:16:14,364 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2021-01-06 14:16:14,364 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [3] total 4 [2021-01-06 14:16:14,365 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [672147515] [2021-01-06 14:16:14,366 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-01-06 14:16:14,366 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-06 14:16:14,370 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-01-06 14:16:14,370 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-01-06 14:16:14,370 INFO L87 Difference]: Start difference. First operand 716 states and 902 transitions. Second operand 3 states. [2021-01-06 14:16:15,167 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-06 14:16:15,167 INFO L93 Difference]: Finished difference Result 1252 states and 1612 transitions. [2021-01-06 14:16:15,167 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-01-06 14:16:15,168 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 142 [2021-01-06 14:16:15,169 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-06 14:16:15,175 INFO L225 Difference]: With dead ends: 1252 [2021-01-06 14:16:15,175 INFO L226 Difference]: Without dead ends: 1250 [2021-01-06 14:16:15,176 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 144 GetRequests, 141 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-01-06 14:16:15,178 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1250 states. [2021-01-06 14:16:15,205 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1250 to 894. [2021-01-06 14:16:15,205 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 894 states. [2021-01-06 14:16:15,209 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 894 states to 894 states and 1194 transitions. [2021-01-06 14:16:15,209 INFO L78 Accepts]: Start accepts. Automaton has 894 states and 1194 transitions. Word has length 142 [2021-01-06 14:16:15,210 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-06 14:16:15,210 INFO L481 AbstractCegarLoop]: Abstraction has 894 states and 1194 transitions. [2021-01-06 14:16:15,211 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2021-01-06 14:16:15,211 INFO L276 IsEmpty]: Start isEmpty. Operand 894 states and 1194 transitions. [2021-01-06 14:16:15,216 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 197 [2021-01-06 14:16:15,216 INFO L414 BasicCegarLoop]: Found error trace [2021-01-06 14:16:15,217 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, 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, 1, 1, 1, 1, 1, 1, 1] [2021-01-06 14:16:15,432 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable2 [2021-01-06 14:16:15,433 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-06 14:16:15,433 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-06 14:16:15,433 INFO L82 PathProgramCache]: Analyzing trace with hash 1135315076, now seen corresponding path program 1 times [2021-01-06 14:16:15,434 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-06 14:16:15,434 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [779683429] [2021-01-06 14:16:15,434 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-06 14:16:15,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-06 14:16:15,729 INFO L134 CoverageAnalysis]: Checked inductivity of 147 backedges. 141 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2021-01-06 14:16:15,729 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [779683429] [2021-01-06 14:16:15,729 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-06 14:16:15,730 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-01-06 14:16:15,730 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [612519367] [2021-01-06 14:16:15,731 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-01-06 14:16:15,731 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-06 14:16:15,732 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-01-06 14:16:15,732 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-01-06 14:16:15,732 INFO L87 Difference]: Start difference. First operand 894 states and 1194 transitions. Second operand 4 states. [2021-01-06 14:16:16,612 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-06 14:16:16,612 INFO L93 Difference]: Finished difference Result 1993 states and 2629 transitions. [2021-01-06 14:16:16,612 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-01-06 14:16:16,613 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 196 [2021-01-06 14:16:16,613 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-06 14:16:16,619 INFO L225 Difference]: With dead ends: 1993 [2021-01-06 14:16:16,619 INFO L226 Difference]: Without dead ends: 1072 [2021-01-06 14:16:16,620 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 [2021-01-06 14:16:16,622 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1072 states. [2021-01-06 14:16:16,645 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1072 to 1072. [2021-01-06 14:16:16,645 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1072 states. [2021-01-06 14:16:16,649 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1072 states to 1072 states and 1264 transitions. [2021-01-06 14:16:16,649 INFO L78 Accepts]: Start accepts. Automaton has 1072 states and 1264 transitions. Word has length 196 [2021-01-06 14:16:16,650 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-06 14:16:16,650 INFO L481 AbstractCegarLoop]: Abstraction has 1072 states and 1264 transitions. [2021-01-06 14:16:16,650 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2021-01-06 14:16:16,650 INFO L276 IsEmpty]: Start isEmpty. Operand 1072 states and 1264 transitions. [2021-01-06 14:16:16,654 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 209 [2021-01-06 14:16:16,654 INFO L414 BasicCegarLoop]: Found error trace [2021-01-06 14:16:16,654 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-01-06 14:16:16,655 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-01-06 14:16:16,655 INFO L429 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-06 14:16:16,656 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-06 14:16:16,657 INFO L82 PathProgramCache]: Analyzing trace with hash -896120632, now seen corresponding path program 1 times [2021-01-06 14:16:16,657 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-06 14:16:16,657 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1496829968] [2021-01-06 14:16:16,657 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-06 14:16:16,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-06 14:16:17,026 INFO L134 CoverageAnalysis]: Checked inductivity of 134 backedges. 69 proven. 65 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-06 14:16:17,026 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1496829968] [2021-01-06 14:16:17,026 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1427431764] [2021-01-06 14:16:17,027 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 [2021-01-06 14:16:17,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-06 14:16:17,151 INFO L263 TraceCheckSpWp]: Trace formula consists of 319 conjuncts, 2 conjunts are in the unsatisfiable core [2021-01-06 14:16:17,171 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-01-06 14:16:17,410 INFO L134 CoverageAnalysis]: Checked inductivity of 134 backedges. 69 proven. 0 refuted. 0 times theorem prover too weak. 65 trivial. 0 not checked. [2021-01-06 14:16:17,410 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2021-01-06 14:16:17,410 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [4] total 5 [2021-01-06 14:16:17,411 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1037200592] [2021-01-06 14:16:17,411 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-01-06 14:16:17,412 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-06 14:16:17,413 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-01-06 14:16:17,413 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2021-01-06 14:16:17,413 INFO L87 Difference]: Start difference. First operand 1072 states and 1264 transitions. Second operand 3 states. [2021-01-06 14:16:18,067 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-06 14:16:18,068 INFO L93 Difference]: Finished difference Result 2320 states and 2779 transitions. [2021-01-06 14:16:18,068 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-01-06 14:16:18,069 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 208 [2021-01-06 14:16:18,069 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-06 14:16:18,077 INFO L225 Difference]: With dead ends: 2320 [2021-01-06 14:16:18,077 INFO L226 Difference]: Without dead ends: 1250 [2021-01-06 14:16:18,080 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 211 GetRequests, 207 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2021-01-06 14:16:18,081 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1250 states. [2021-01-06 14:16:18,100 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1250 to 1072. [2021-01-06 14:16:18,101 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1072 states. [2021-01-06 14:16:18,104 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1072 states to 1072 states and 1250 transitions. [2021-01-06 14:16:18,104 INFO L78 Accepts]: Start accepts. Automaton has 1072 states and 1250 transitions. Word has length 208 [2021-01-06 14:16:18,106 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-06 14:16:18,106 INFO L481 AbstractCegarLoop]: Abstraction has 1072 states and 1250 transitions. [2021-01-06 14:16:18,106 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2021-01-06 14:16:18,106 INFO L276 IsEmpty]: Start isEmpty. Operand 1072 states and 1250 transitions. [2021-01-06 14:16:18,109 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 212 [2021-01-06 14:16:18,109 INFO L414 BasicCegarLoop]: Found error trace [2021-01-06 14:16:18,110 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-01-06 14:16:18,323 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,3 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-01-06 14:16:18,324 INFO L429 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-06 14:16:18,325 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-06 14:16:18,326 INFO L82 PathProgramCache]: Analyzing trace with hash -1599539857, now seen corresponding path program 1 times [2021-01-06 14:16:18,326 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-06 14:16:18,327 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [287106486] [2021-01-06 14:16:18,327 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-06 14:16:18,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-06 14:16:18,612 INFO L134 CoverageAnalysis]: Checked inductivity of 137 backedges. 69 proven. 68 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-06 14:16:18,612 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [287106486] [2021-01-06 14:16:18,613 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [941737844] [2021-01-06 14:16:18,613 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 [2021-01-06 14:16:18,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-06 14:16:18,699 INFO L263 TraceCheckSpWp]: Trace formula consists of 321 conjuncts, 2 conjunts are in the unsatisfiable core [2021-01-06 14:16:18,702 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-01-06 14:16:18,864 INFO L134 CoverageAnalysis]: Checked inductivity of 137 backedges. 69 proven. 0 refuted. 0 times theorem prover too weak. 68 trivial. 0 not checked. [2021-01-06 14:16:18,865 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2021-01-06 14:16:18,865 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 6 [2021-01-06 14:16:18,866 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1574263092] [2021-01-06 14:16:18,868 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-01-06 14:16:18,868 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-06 14:16:18,871 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-01-06 14:16:18,871 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2021-01-06 14:16:18,872 INFO L87 Difference]: Start difference. First operand 1072 states and 1250 transitions. Second operand 3 states. [2021-01-06 14:16:19,540 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-06 14:16:19,540 INFO L93 Difference]: Finished difference Result 2676 states and 3182 transitions. [2021-01-06 14:16:19,541 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-01-06 14:16:19,541 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 211 [2021-01-06 14:16:19,542 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-06 14:16:19,551 INFO L225 Difference]: With dead ends: 2676 [2021-01-06 14:16:19,552 INFO L226 Difference]: Without dead ends: 1606 [2021-01-06 14:16:19,555 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 214 GetRequests, 210 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2021-01-06 14:16:19,558 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1606 states. [2021-01-06 14:16:19,587 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1606 to 1428. [2021-01-06 14:16:19,594 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1428 states. [2021-01-06 14:16:19,598 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1428 states to 1428 states and 1637 transitions. [2021-01-06 14:16:19,599 INFO L78 Accepts]: Start accepts. Automaton has 1428 states and 1637 transitions. Word has length 211 [2021-01-06 14:16:19,599 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-06 14:16:19,599 INFO L481 AbstractCegarLoop]: Abstraction has 1428 states and 1637 transitions. [2021-01-06 14:16:19,600 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2021-01-06 14:16:19,600 INFO L276 IsEmpty]: Start isEmpty. Operand 1428 states and 1637 transitions. [2021-01-06 14:16:19,603 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 222 [2021-01-06 14:16:19,603 INFO L414 BasicCegarLoop]: Found error trace [2021-01-06 14:16:19,604 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-01-06 14:16:19,817 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,4 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-01-06 14:16:19,818 INFO L429 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-06 14:16:19,819 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-06 14:16:19,819 INFO L82 PathProgramCache]: Analyzing trace with hash -1547025688, now seen corresponding path program 1 times [2021-01-06 14:16:19,820 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-06 14:16:19,821 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [135254843] [2021-01-06 14:16:19,821 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-06 14:16:19,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-06 14:16:20,016 INFO L134 CoverageAnalysis]: Checked inductivity of 147 backedges. 147 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-06 14:16:20,017 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [135254843] [2021-01-06 14:16:20,017 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-06 14:16:20,017 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-01-06 14:16:20,018 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1635835478] [2021-01-06 14:16:20,018 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-01-06 14:16:20,018 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-06 14:16:20,019 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-01-06 14:16:20,019 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-01-06 14:16:20,019 INFO L87 Difference]: Start difference. First operand 1428 states and 1637 transitions. Second operand 3 states. [2021-01-06 14:16:20,709 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-06 14:16:20,709 INFO L93 Difference]: Finished difference Result 3566 states and 4136 transitions. [2021-01-06 14:16:20,710 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-01-06 14:16:20,710 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 221 [2021-01-06 14:16:20,710 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-06 14:16:20,719 INFO L225 Difference]: With dead ends: 3566 [2021-01-06 14:16:20,719 INFO L226 Difference]: Without dead ends: 2140 [2021-01-06 14:16:20,722 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 [2021-01-06 14:16:20,724 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2140 states. [2021-01-06 14:16:20,760 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2140 to 2140. [2021-01-06 14:16:20,761 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2140 states. [2021-01-06 14:16:20,767 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2140 states to 2140 states and 2400 transitions. [2021-01-06 14:16:20,767 INFO L78 Accepts]: Start accepts. Automaton has 2140 states and 2400 transitions. Word has length 221 [2021-01-06 14:16:20,767 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-06 14:16:20,767 INFO L481 AbstractCegarLoop]: Abstraction has 2140 states and 2400 transitions. [2021-01-06 14:16:20,767 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2021-01-06 14:16:20,768 INFO L276 IsEmpty]: Start isEmpty. Operand 2140 states and 2400 transitions. [2021-01-06 14:16:20,774 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 408 [2021-01-06 14:16:20,775 INFO L414 BasicCegarLoop]: Found error trace [2021-01-06 14:16:20,775 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, 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-01-06 14:16:20,775 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-01-06 14:16:20,775 INFO L429 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-06 14:16:20,776 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-06 14:16:20,776 INFO L82 PathProgramCache]: Analyzing trace with hash -1550739383, now seen corresponding path program 1 times [2021-01-06 14:16:20,776 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-06 14:16:20,777 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1070441306] [2021-01-06 14:16:20,777 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-06 14:16:20,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-06 14:16:21,174 INFO L134 CoverageAnalysis]: Checked inductivity of 638 backedges. 369 proven. 0 refuted. 0 times theorem prover too weak. 269 trivial. 0 not checked. [2021-01-06 14:16:21,175 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1070441306] [2021-01-06 14:16:21,175 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-06 14:16:21,175 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-01-06 14:16:21,175 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [439478210] [2021-01-06 14:16:21,176 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-01-06 14:16:21,176 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-06 14:16:21,177 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-01-06 14:16:21,177 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-01-06 14:16:21,177 INFO L87 Difference]: Start difference. First operand 2140 states and 2400 transitions. Second operand 4 states. [2021-01-06 14:16:21,970 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-06 14:16:21,970 INFO L93 Difference]: Finished difference Result 4336 states and 4867 transitions. [2021-01-06 14:16:21,970 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-01-06 14:16:21,971 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 407 [2021-01-06 14:16:21,971 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-06 14:16:21,984 INFO L225 Difference]: With dead ends: 4336 [2021-01-06 14:16:21,984 INFO L226 Difference]: Without dead ends: 2318 [2021-01-06 14:16:21,987 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 [2021-01-06 14:16:21,990 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2318 states. [2021-01-06 14:16:22,024 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2318 to 2140. [2021-01-06 14:16:22,024 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2140 states. [2021-01-06 14:16:22,030 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2140 states to 2140 states and 2325 transitions. [2021-01-06 14:16:22,030 INFO L78 Accepts]: Start accepts. Automaton has 2140 states and 2325 transitions. Word has length 407 [2021-01-06 14:16:22,030 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-06 14:16:22,031 INFO L481 AbstractCegarLoop]: Abstraction has 2140 states and 2325 transitions. [2021-01-06 14:16:22,032 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2021-01-06 14:16:22,032 INFO L276 IsEmpty]: Start isEmpty. Operand 2140 states and 2325 transitions. [2021-01-06 14:16:22,041 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 434 [2021-01-06 14:16:22,041 INFO L414 BasicCegarLoop]: Found error trace [2021-01-06 14:16:22,041 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, 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, 3, 3, 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] [2021-01-06 14:16:22,041 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-01-06 14:16:22,042 INFO L429 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-06 14:16:22,042 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-06 14:16:22,042 INFO L82 PathProgramCache]: Analyzing trace with hash -1155055064, now seen corresponding path program 1 times [2021-01-06 14:16:22,042 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-06 14:16:22,043 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [156472389] [2021-01-06 14:16:22,043 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-06 14:16:22,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-06 14:16:22,465 INFO L134 CoverageAnalysis]: Checked inductivity of 689 backedges. 375 proven. 0 refuted. 0 times theorem prover too weak. 314 trivial. 0 not checked. [2021-01-06 14:16:22,466 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [156472389] [2021-01-06 14:16:22,466 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-06 14:16:22,466 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-01-06 14:16:22,467 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [449806860] [2021-01-06 14:16:22,467 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-01-06 14:16:22,467 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-06 14:16:22,468 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-01-06 14:16:22,468 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-01-06 14:16:22,468 INFO L87 Difference]: Start difference. First operand 2140 states and 2325 transitions. Second operand 3 states. [2021-01-06 14:16:23,158 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-06 14:16:23,158 INFO L93 Difference]: Finished difference Result 4634 states and 5086 transitions. [2021-01-06 14:16:23,158 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-01-06 14:16:23,158 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 433 [2021-01-06 14:16:23,159 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-06 14:16:23,171 INFO L225 Difference]: With dead ends: 4634 [2021-01-06 14:16:23,171 INFO L226 Difference]: Without dead ends: 2674 [2021-01-06 14:16:23,175 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 [2021-01-06 14:16:23,178 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2674 states. [2021-01-06 14:16:23,239 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2674 to 2496. [2021-01-06 14:16:23,240 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2496 states. [2021-01-06 14:16:23,245 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2496 states to 2496 states and 2684 transitions. [2021-01-06 14:16:23,245 INFO L78 Accepts]: Start accepts. Automaton has 2496 states and 2684 transitions. Word has length 433 [2021-01-06 14:16:23,246 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-06 14:16:23,246 INFO L481 AbstractCegarLoop]: Abstraction has 2496 states and 2684 transitions. [2021-01-06 14:16:23,246 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2021-01-06 14:16:23,246 INFO L276 IsEmpty]: Start isEmpty. Operand 2496 states and 2684 transitions. [2021-01-06 14:16:23,249 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 441 [2021-01-06 14:16:23,249 INFO L414 BasicCegarLoop]: Found error trace [2021-01-06 14:16:23,250 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, 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, 3, 3, 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, 1] [2021-01-06 14:16:23,250 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-01-06 14:16:23,250 INFO L429 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-06 14:16:23,250 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-06 14:16:23,251 INFO L82 PathProgramCache]: Analyzing trace with hash -38075217, now seen corresponding path program 1 times [2021-01-06 14:16:23,251 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-06 14:16:23,251 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1639130120] [2021-01-06 14:16:23,251 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-06 14:16:23,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-06 14:16:23,663 INFO L134 CoverageAnalysis]: Checked inductivity of 689 backedges. 375 proven. 0 refuted. 0 times theorem prover too weak. 314 trivial. 0 not checked. [2021-01-06 14:16:23,664 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1639130120] [2021-01-06 14:16:23,664 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-06 14:16:23,664 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-01-06 14:16:23,664 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1393067876] [2021-01-06 14:16:23,665 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-01-06 14:16:23,665 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-06 14:16:23,665 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-01-06 14:16:23,666 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-01-06 14:16:23,666 INFO L87 Difference]: Start difference. First operand 2496 states and 2684 transitions. Second operand 3 states. [2021-01-06 14:16:24,369 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-06 14:16:24,369 INFO L93 Difference]: Finished difference Result 5702 states and 6201 transitions. [2021-01-06 14:16:24,370 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-01-06 14:16:24,370 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 440 [2021-01-06 14:16:24,371 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-06 14:16:24,386 INFO L225 Difference]: With dead ends: 5702 [2021-01-06 14:16:24,387 INFO L226 Difference]: Without dead ends: 3386 [2021-01-06 14:16:24,390 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 [2021-01-06 14:16:24,394 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3386 states. [2021-01-06 14:16:24,464 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3386 to 3386. [2021-01-06 14:16:24,464 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3386 states. [2021-01-06 14:16:24,472 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3386 states to 3386 states and 3637 transitions. [2021-01-06 14:16:24,472 INFO L78 Accepts]: Start accepts. Automaton has 3386 states and 3637 transitions. Word has length 440 [2021-01-06 14:16:24,473 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-06 14:16:24,473 INFO L481 AbstractCegarLoop]: Abstraction has 3386 states and 3637 transitions. [2021-01-06 14:16:24,473 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2021-01-06 14:16:24,473 INFO L276 IsEmpty]: Start isEmpty. Operand 3386 states and 3637 transitions. [2021-01-06 14:16:24,477 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 486 [2021-01-06 14:16:24,477 INFO L414 BasicCegarLoop]: Found error trace [2021-01-06 14:16:24,478 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, 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, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-01-06 14:16:24,478 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2021-01-06 14:16:24,478 INFO L429 AbstractCegarLoop]: === Iteration 11 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-06 14:16:24,478 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-06 14:16:24,479 INFO L82 PathProgramCache]: Analyzing trace with hash 2095835622, now seen corresponding path program 1 times [2021-01-06 14:16:24,479 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-06 14:16:24,479 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1512415800] [2021-01-06 14:16:24,479 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-06 14:16:24,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-06 14:16:25,389 INFO L134 CoverageAnalysis]: Checked inductivity of 689 backedges. 389 proven. 195 refuted. 0 times theorem prover too weak. 105 trivial. 0 not checked. [2021-01-06 14:16:25,389 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1512415800] [2021-01-06 14:16:25,390 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [425193077] [2021-01-06 14:16:25,390 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 [2021-01-06 14:16:25,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-06 14:16:25,550 INFO L263 TraceCheckSpWp]: Trace formula consists of 639 conjuncts, 2 conjunts are in the unsatisfiable core [2021-01-06 14:16:25,557 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-01-06 14:16:26,040 INFO L134 CoverageAnalysis]: Checked inductivity of 689 backedges. 139 proven. 0 refuted. 0 times theorem prover too weak. 550 trivial. 0 not checked. [2021-01-06 14:16:26,041 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2021-01-06 14:16:26,041 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [5] total 7 [2021-01-06 14:16:26,041 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1405128644] [2021-01-06 14:16:26,042 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-01-06 14:16:26,042 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-06 14:16:26,043 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-01-06 14:16:26,043 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2021-01-06 14:16:26,043 INFO L87 Difference]: Start difference. First operand 3386 states and 3637 transitions. Second operand 3 states. [2021-01-06 14:16:26,699 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-06 14:16:26,699 INFO L93 Difference]: Finished difference Result 7126 states and 7668 transitions. [2021-01-06 14:16:26,700 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-01-06 14:16:26,700 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 485 [2021-01-06 14:16:26,701 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-06 14:16:26,715 INFO L225 Difference]: With dead ends: 7126 [2021-01-06 14:16:26,716 INFO L226 Difference]: Without dead ends: 3208 [2021-01-06 14:16:26,720 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 489 GetRequests, 484 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2021-01-06 14:16:26,725 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3208 states. [2021-01-06 14:16:26,779 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3208 to 2852. [2021-01-06 14:16:26,779 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2852 states. [2021-01-06 14:16:26,786 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2852 states to 2852 states and 3052 transitions. [2021-01-06 14:16:26,786 INFO L78 Accepts]: Start accepts. Automaton has 2852 states and 3052 transitions. Word has length 485 [2021-01-06 14:16:26,787 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-06 14:16:26,787 INFO L481 AbstractCegarLoop]: Abstraction has 2852 states and 3052 transitions. [2021-01-06 14:16:26,788 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2021-01-06 14:16:26,788 INFO L276 IsEmpty]: Start isEmpty. Operand 2852 states and 3052 transitions. [2021-01-06 14:16:26,795 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 597 [2021-01-06 14:16:26,796 INFO L414 BasicCegarLoop]: Found error trace [2021-01-06 14:16:26,796 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, 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, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-01-06 14:16:27,010 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,5 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-01-06 14:16:27,011 INFO L429 AbstractCegarLoop]: === Iteration 12 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-06 14:16:27,012 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-06 14:16:27,013 INFO L82 PathProgramCache]: Analyzing trace with hash 605799915, now seen corresponding path program 1 times [2021-01-06 14:16:27,013 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-06 14:16:27,014 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1313656171] [2021-01-06 14:16:27,014 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-06 14:16:27,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-06 14:16:28,040 INFO L134 CoverageAnalysis]: Checked inductivity of 1133 backedges. 798 proven. 195 refuted. 0 times theorem prover too weak. 140 trivial. 0 not checked. [2021-01-06 14:16:28,041 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1313656171] [2021-01-06 14:16:28,041 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1806057958] [2021-01-06 14:16:28,041 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 [2021-01-06 14:16:28,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-06 14:16:28,225 INFO L263 TraceCheckSpWp]: Trace formula consists of 775 conjuncts, 2 conjunts are in the unsatisfiable core [2021-01-06 14:16:28,232 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-01-06 14:16:28,721 INFO L134 CoverageAnalysis]: Checked inductivity of 1133 backedges. 174 proven. 0 refuted. 0 times theorem prover too weak. 959 trivial. 0 not checked. [2021-01-06 14:16:28,722 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2021-01-06 14:16:28,722 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [5] total 7 [2021-01-06 14:16:28,722 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1753095825] [2021-01-06 14:16:28,723 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-01-06 14:16:28,723 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-06 14:16:28,724 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-01-06 14:16:28,724 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2021-01-06 14:16:28,724 INFO L87 Difference]: Start difference. First operand 2852 states and 3052 transitions. Second operand 3 states. [2021-01-06 14:16:29,363 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-06 14:16:29,363 INFO L93 Difference]: Finished difference Result 6058 states and 6533 transitions. [2021-01-06 14:16:29,364 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-01-06 14:16:29,364 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 596 [2021-01-06 14:16:29,366 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-06 14:16:29,382 INFO L225 Difference]: With dead ends: 6058 [2021-01-06 14:16:29,383 INFO L226 Difference]: Without dead ends: 3386 [2021-01-06 14:16:29,387 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 600 GetRequests, 595 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2021-01-06 14:16:29,391 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3386 states. [2021-01-06 14:16:29,438 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3386 to 3030. [2021-01-06 14:16:29,439 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3030 states. [2021-01-06 14:16:29,445 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3030 states to 3030 states and 3238 transitions. [2021-01-06 14:16:29,446 INFO L78 Accepts]: Start accepts. Automaton has 3030 states and 3238 transitions. Word has length 596 [2021-01-06 14:16:29,447 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-06 14:16:29,447 INFO L481 AbstractCegarLoop]: Abstraction has 3030 states and 3238 transitions. [2021-01-06 14:16:29,447 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2021-01-06 14:16:29,447 INFO L276 IsEmpty]: Start isEmpty. Operand 3030 states and 3238 transitions. [2021-01-06 14:16:29,480 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 616 [2021-01-06 14:16:29,480 INFO L414 BasicCegarLoop]: Found error trace [2021-01-06 14:16:29,481 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, 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, 4, 4, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-01-06 14:16:29,687 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable11 [2021-01-06 14:16:29,688 INFO L429 AbstractCegarLoop]: === Iteration 13 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-06 14:16:29,689 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-06 14:16:29,690 INFO L82 PathProgramCache]: Analyzing trace with hash -2070534940, now seen corresponding path program 1 times [2021-01-06 14:16:29,690 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-06 14:16:29,690 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [11670359] [2021-01-06 14:16:29,691 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-06 14:16:29,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-06 14:16:30,638 INFO L134 CoverageAnalysis]: Checked inductivity of 1209 backedges. 874 proven. 195 refuted. 0 times theorem prover too weak. 140 trivial. 0 not checked. [2021-01-06 14:16:30,638 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [11670359] [2021-01-06 14:16:30,638 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [938944853] [2021-01-06 14:16:30,638 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 [2021-01-06 14:16:30,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-06 14:16:30,822 INFO L263 TraceCheckSpWp]: Trace formula consists of 795 conjuncts, 2 conjunts are in the unsatisfiable core [2021-01-06 14:16:30,830 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-01-06 14:16:31,399 INFO L134 CoverageAnalysis]: Checked inductivity of 1209 backedges. 174 proven. 0 refuted. 0 times theorem prover too weak. 1035 trivial. 0 not checked. [2021-01-06 14:16:31,399 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2021-01-06 14:16:31,399 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [5] total 7 [2021-01-06 14:16:31,400 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1128236446] [2021-01-06 14:16:31,400 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-01-06 14:16:31,401 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-06 14:16:31,401 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-01-06 14:16:31,401 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2021-01-06 14:16:31,402 INFO L87 Difference]: Start difference. First operand 3030 states and 3238 transitions. Second operand 3 states. [2021-01-06 14:16:31,974 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-06 14:16:31,974 INFO L93 Difference]: Finished difference Result 6058 states and 6478 transitions. [2021-01-06 14:16:31,974 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-01-06 14:16:31,974 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 615 [2021-01-06 14:16:31,975 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-06 14:16:31,985 INFO L225 Difference]: With dead ends: 6058 [2021-01-06 14:16:31,985 INFO L226 Difference]: Without dead ends: 3208 [2021-01-06 14:16:31,988 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 619 GetRequests, 614 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2021-01-06 14:16:31,992 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3208 states. [2021-01-06 14:16:32,036 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3208 to 2852. [2021-01-06 14:16:32,036 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2852 states. [2021-01-06 14:16:32,041 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2852 states to 2852 states and 3044 transitions. [2021-01-06 14:16:32,042 INFO L78 Accepts]: Start accepts. Automaton has 2852 states and 3044 transitions. Word has length 615 [2021-01-06 14:16:32,042 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-06 14:16:32,042 INFO L481 AbstractCegarLoop]: Abstraction has 2852 states and 3044 transitions. [2021-01-06 14:16:32,042 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2021-01-06 14:16:32,042 INFO L276 IsEmpty]: Start isEmpty. Operand 2852 states and 3044 transitions. [2021-01-06 14:16:32,049 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 630 [2021-01-06 14:16:32,049 INFO L414 BasicCegarLoop]: Found error trace [2021-01-06 14:16:32,050 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, 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, 5, 5, 4, 3, 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, 1, 1] [2021-01-06 14:16:32,263 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12,7 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-01-06 14:16:32,265 INFO L429 AbstractCegarLoop]: === Iteration 14 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-06 14:16:32,265 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-06 14:16:32,266 INFO L82 PathProgramCache]: Analyzing trace with hash 1023516007, now seen corresponding path program 1 times [2021-01-06 14:16:32,266 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-06 14:16:32,267 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [137557569] [2021-01-06 14:16:32,267 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-06 14:16:32,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-06 14:16:33,174 INFO L134 CoverageAnalysis]: Checked inductivity of 1239 backedges. 904 proven. 195 refuted. 0 times theorem prover too weak. 140 trivial. 0 not checked. [2021-01-06 14:16:33,174 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [137557569] [2021-01-06 14:16:33,174 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1831434675] [2021-01-06 14:16:33,174 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 [2021-01-06 14:16:33,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-06 14:16:33,361 INFO L263 TraceCheckSpWp]: Trace formula consists of 807 conjuncts, 3 conjunts are in the unsatisfiable core [2021-01-06 14:16:33,370 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-01-06 14:16:34,473 INFO L134 CoverageAnalysis]: Checked inductivity of 1239 backedges. 572 proven. 0 refuted. 0 times theorem prover too weak. 667 trivial. 0 not checked. [2021-01-06 14:16:34,473 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2021-01-06 14:16:34,474 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [5] total 6 [2021-01-06 14:16:34,474 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [541361170] [2021-01-06 14:16:34,475 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-01-06 14:16:34,475 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-06 14:16:34,475 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-01-06 14:16:34,475 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2021-01-06 14:16:34,475 INFO L87 Difference]: Start difference. First operand 2852 states and 3044 transitions. Second operand 3 states. [2021-01-06 14:16:35,065 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-06 14:16:35,065 INFO L93 Difference]: Finished difference Result 5702 states and 6090 transitions. [2021-01-06 14:16:35,066 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-01-06 14:16:35,066 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 629 [2021-01-06 14:16:35,066 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-06 14:16:35,078 INFO L225 Difference]: With dead ends: 5702 [2021-01-06 14:16:35,078 INFO L226 Difference]: Without dead ends: 2852 [2021-01-06 14:16:35,081 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 633 GetRequests, 628 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2021-01-06 14:16:35,085 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2852 states. [2021-01-06 14:16:35,124 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2852 to 2852. [2021-01-06 14:16:35,125 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2852 states. [2021-01-06 14:16:35,129 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2852 states to 2852 states and 2989 transitions. [2021-01-06 14:16:35,130 INFO L78 Accepts]: Start accepts. Automaton has 2852 states and 2989 transitions. Word has length 629 [2021-01-06 14:16:35,130 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-06 14:16:35,130 INFO L481 AbstractCegarLoop]: Abstraction has 2852 states and 2989 transitions. [2021-01-06 14:16:35,130 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2021-01-06 14:16:35,130 INFO L276 IsEmpty]: Start isEmpty. Operand 2852 states and 2989 transitions. [2021-01-06 14:16:35,137 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 652 [2021-01-06 14:16:35,137 INFO L414 BasicCegarLoop]: Found error trace [2021-01-06 14:16:35,138 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, 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, 5, 5, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-01-06 14:16:35,351 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable13 [2021-01-06 14:16:35,352 INFO L429 AbstractCegarLoop]: === Iteration 15 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-06 14:16:35,353 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-06 14:16:35,353 INFO L82 PathProgramCache]: Analyzing trace with hash 2022748667, now seen corresponding path program 1 times [2021-01-06 14:16:35,354 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-06 14:16:35,354 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1698765039] [2021-01-06 14:16:35,354 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-06 14:16:35,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-06 14:16:35,828 INFO L134 CoverageAnalysis]: Checked inductivity of 1249 backedges. 900 proven. 0 refuted. 0 times theorem prover too weak. 349 trivial. 0 not checked. [2021-01-06 14:16:35,828 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1698765039] [2021-01-06 14:16:35,828 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-06 14:16:35,829 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-01-06 14:16:35,829 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2066180409] [2021-01-06 14:16:35,829 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-01-06 14:16:35,833 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-06 14:16:35,834 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-01-06 14:16:35,834 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-01-06 14:16:35,834 INFO L87 Difference]: Start difference. First operand 2852 states and 2989 transitions. Second operand 3 states. [2021-01-06 14:16:36,417 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-06 14:16:36,417 INFO L93 Difference]: Finished difference Result 6414 states and 6743 transitions. [2021-01-06 14:16:36,418 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-01-06 14:16:36,418 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 651 [2021-01-06 14:16:36,419 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-06 14:16:36,428 INFO L225 Difference]: With dead ends: 6414 [2021-01-06 14:16:36,429 INFO L226 Difference]: Without dead ends: 3742 [2021-01-06 14:16:36,433 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 [2021-01-06 14:16:36,441 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3742 states. [2021-01-06 14:16:36,497 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3742 to 3742. [2021-01-06 14:16:36,498 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3742 states. [2021-01-06 14:16:36,504 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3742 states to 3742 states and 3904 transitions. [2021-01-06 14:16:36,505 INFO L78 Accepts]: Start accepts. Automaton has 3742 states and 3904 transitions. Word has length 651 [2021-01-06 14:16:36,505 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-06 14:16:36,505 INFO L481 AbstractCegarLoop]: Abstraction has 3742 states and 3904 transitions. [2021-01-06 14:16:36,505 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2021-01-06 14:16:36,506 INFO L276 IsEmpty]: Start isEmpty. Operand 3742 states and 3904 transitions. [2021-01-06 14:16:36,515 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 807 [2021-01-06 14:16:36,515 INFO L414 BasicCegarLoop]: Found error trace [2021-01-06 14:16:36,516 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, 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, 5, 4, 4, 4, 4, 4, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-01-06 14:16:36,516 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2021-01-06 14:16:36,516 INFO L429 AbstractCegarLoop]: === Iteration 16 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-06 14:16:36,516 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-06 14:16:36,517 INFO L82 PathProgramCache]: Analyzing trace with hash -253890537, now seen corresponding path program 1 times [2021-01-06 14:16:36,517 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-06 14:16:36,517 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1570021940] [2021-01-06 14:16:36,517 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-06 14:16:36,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-06 14:16:37,444 INFO L134 CoverageAnalysis]: Checked inductivity of 1877 backedges. 1373 proven. 155 refuted. 0 times theorem prover too weak. 349 trivial. 0 not checked. [2021-01-06 14:16:37,444 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1570021940] [2021-01-06 14:16:37,444 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1166973742] [2021-01-06 14:16:37,445 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 [2021-01-06 14:16:37,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-06 14:16:37,665 INFO L263 TraceCheckSpWp]: Trace formula consists of 1012 conjuncts, 3 conjunts are in the unsatisfiable core [2021-01-06 14:16:37,673 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-01-06 14:16:38,618 INFO L134 CoverageAnalysis]: Checked inductivity of 1877 backedges. 1373 proven. 155 refuted. 0 times theorem prover too weak. 349 trivial. 0 not checked. [2021-01-06 14:16:38,618 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-01-06 14:16:38,618 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 4 [2021-01-06 14:16:38,619 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1203171309] [2021-01-06 14:16:38,620 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-01-06 14:16:38,620 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-06 14:16:38,621 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-01-06 14:16:38,621 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-01-06 14:16:38,621 INFO L87 Difference]: Start difference. First operand 3742 states and 3904 transitions. Second operand 4 states. [2021-01-06 14:16:39,415 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-06 14:16:39,415 INFO L93 Difference]: Finished difference Result 7838 states and 8201 transitions. [2021-01-06 14:16:39,416 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-01-06 14:16:39,416 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 806 [2021-01-06 14:16:39,420 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-06 14:16:39,441 INFO L225 Difference]: With dead ends: 7838 [2021-01-06 14:16:39,441 INFO L226 Difference]: Without dead ends: 4276 [2021-01-06 14:16:39,446 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 809 GetRequests, 807 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-01-06 14:16:39,451 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4276 states. [2021-01-06 14:16:39,519 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4276 to 4276. [2021-01-06 14:16:39,519 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4276 states. [2021-01-06 14:16:39,526 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4276 states to 4276 states and 4464 transitions. [2021-01-06 14:16:39,527 INFO L78 Accepts]: Start accepts. Automaton has 4276 states and 4464 transitions. Word has length 806 [2021-01-06 14:16:39,528 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-06 14:16:39,529 INFO L481 AbstractCegarLoop]: Abstraction has 4276 states and 4464 transitions. [2021-01-06 14:16:39,529 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2021-01-06 14:16:39,529 INFO L276 IsEmpty]: Start isEmpty. Operand 4276 states and 4464 transitions. [2021-01-06 14:16:39,542 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 879 [2021-01-06 14:16:39,542 INFO L414 BasicCegarLoop]: Found error trace [2021-01-06 14:16:39,543 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, 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, 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2021-01-06 14:16:39,758 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable15 [2021-01-06 14:16:39,759 INFO L429 AbstractCegarLoop]: === Iteration 17 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-06 14:16:39,760 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-06 14:16:39,761 INFO L82 PathProgramCache]: Analyzing trace with hash -685925002, now seen corresponding path program 1 times [2021-01-06 14:16:39,761 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-06 14:16:39,761 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1086308915] [2021-01-06 14:16:39,761 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-06 14:16:39,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-06 14:16:40,676 INFO L134 CoverageAnalysis]: Checked inductivity of 2343 backedges. 1521 proven. 0 refuted. 0 times theorem prover too weak. 822 trivial. 0 not checked. [2021-01-06 14:16:40,677 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1086308915] [2021-01-06 14:16:40,678 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-06 14:16:40,678 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-01-06 14:16:40,678 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [937606532] [2021-01-06 14:16:40,680 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-01-06 14:16:40,680 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-06 14:16:40,682 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-01-06 14:16:40,682 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-01-06 14:16:40,682 INFO L87 Difference]: Start difference. First operand 4276 states and 4464 transitions. Second operand 3 states. [2021-01-06 14:16:41,253 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-06 14:16:41,254 INFO L93 Difference]: Finished difference Result 8906 states and 9323 transitions. [2021-01-06 14:16:41,254 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-01-06 14:16:41,254 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 878 [2021-01-06 14:16:41,255 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-06 14:16:41,265 INFO L225 Difference]: With dead ends: 8906 [2021-01-06 14:16:41,265 INFO L226 Difference]: Without dead ends: 4810 [2021-01-06 14:16:41,271 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 [2021-01-06 14:16:41,276 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4810 states. [2021-01-06 14:16:41,368 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4810 to 4810. [2021-01-06 14:16:41,368 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4810 states. [2021-01-06 14:16:41,376 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4810 states to 4810 states and 5002 transitions. [2021-01-06 14:16:41,376 INFO L78 Accepts]: Start accepts. Automaton has 4810 states and 5002 transitions. Word has length 878 [2021-01-06 14:16:41,376 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-06 14:16:41,377 INFO L481 AbstractCegarLoop]: Abstraction has 4810 states and 5002 transitions. [2021-01-06 14:16:41,377 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2021-01-06 14:16:41,377 INFO L276 IsEmpty]: Start isEmpty. Operand 4810 states and 5002 transitions. [2021-01-06 14:16:41,388 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 897 [2021-01-06 14:16:41,388 INFO L414 BasicCegarLoop]: Found error trace [2021-01-06 14:16:41,390 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, 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, 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2021-01-06 14:16:41,390 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2021-01-06 14:16:41,390 INFO L429 AbstractCegarLoop]: === Iteration 18 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-06 14:16:41,390 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-06 14:16:41,391 INFO L82 PathProgramCache]: Analyzing trace with hash -32320893, now seen corresponding path program 1 times [2021-01-06 14:16:41,391 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-06 14:16:41,393 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [309982157] [2021-01-06 14:16:41,393 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-06 14:16:41,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-06 14:16:43,060 INFO L134 CoverageAnalysis]: Checked inductivity of 2361 backedges. 1590 proven. 93 refuted. 0 times theorem prover too weak. 678 trivial. 0 not checked. [2021-01-06 14:16:43,060 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [309982157] [2021-01-06 14:16:43,060 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2058279007] [2021-01-06 14:16:43,060 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 [2021-01-06 14:16:43,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-06 14:16:43,297 INFO L263 TraceCheckSpWp]: Trace formula consists of 1124 conjuncts, 3 conjunts are in the unsatisfiable core [2021-01-06 14:16:43,310 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-01-06 14:16:44,294 INFO L134 CoverageAnalysis]: Checked inductivity of 2361 backedges. 1683 proven. 0 refuted. 0 times theorem prover too weak. 678 trivial. 0 not checked. [2021-01-06 14:16:44,294 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2021-01-06 14:16:44,294 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 6 [2021-01-06 14:16:44,295 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1662129331] [2021-01-06 14:16:44,295 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-01-06 14:16:44,296 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-06 14:16:44,296 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-01-06 14:16:44,296 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-01-06 14:16:44,296 INFO L87 Difference]: Start difference. First operand 4810 states and 5002 transitions. Second operand 3 states. [2021-01-06 14:16:44,871 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-06 14:16:44,871 INFO L93 Difference]: Finished difference Result 9440 states and 9823 transitions. [2021-01-06 14:16:44,871 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-01-06 14:16:44,872 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 896 [2021-01-06 14:16:44,872 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-06 14:16:44,878 INFO L225 Difference]: With dead ends: 9440 [2021-01-06 14:16:44,878 INFO L226 Difference]: Without dead ends: 4810 [2021-01-06 14:16:44,883 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 899 GetRequests, 895 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-01-06 14:16:44,889 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4810 states. [2021-01-06 14:16:44,952 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4810 to 4632. [2021-01-06 14:16:44,952 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4632 states. [2021-01-06 14:16:44,961 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4632 states to 4632 states and 4820 transitions. [2021-01-06 14:16:44,961 INFO L78 Accepts]: Start accepts. Automaton has 4632 states and 4820 transitions. Word has length 896 [2021-01-06 14:16:44,962 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-06 14:16:44,962 INFO L481 AbstractCegarLoop]: Abstraction has 4632 states and 4820 transitions. [2021-01-06 14:16:44,962 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2021-01-06 14:16:44,962 INFO L276 IsEmpty]: Start isEmpty. Operand 4632 states and 4820 transitions. [2021-01-06 14:16:44,976 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 974 [2021-01-06 14:16:44,976 INFO L414 BasicCegarLoop]: Found error trace [2021-01-06 14:16:44,977 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, 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, 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, 5, 4, 4, 4, 4, 4, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-01-06 14:16:45,190 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable17 [2021-01-06 14:16:45,191 INFO L429 AbstractCegarLoop]: === Iteration 19 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-06 14:16:45,192 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-06 14:16:45,193 INFO L82 PathProgramCache]: Analyzing trace with hash -1437208854, now seen corresponding path program 1 times [2021-01-06 14:16:45,193 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-06 14:16:45,193 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2101007041] [2021-01-06 14:16:45,194 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-06 14:16:45,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-06 14:16:46,111 INFO L134 CoverageAnalysis]: Checked inductivity of 2929 backedges. 981 proven. 0 refuted. 0 times theorem prover too weak. 1948 trivial. 0 not checked. [2021-01-06 14:16:46,112 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2101007041] [2021-01-06 14:16:46,112 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-06 14:16:46,112 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-01-06 14:16:46,112 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [419060438] [2021-01-06 14:16:46,113 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-01-06 14:16:46,113 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-06 14:16:46,113 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-01-06 14:16:46,113 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-01-06 14:16:46,114 INFO L87 Difference]: Start difference. First operand 4632 states and 4820 transitions. Second operand 3 states. [2021-01-06 14:16:46,682 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-06 14:16:46,682 INFO L93 Difference]: Finished difference Result 8906 states and 9279 transitions. [2021-01-06 14:16:46,682 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-01-06 14:16:46,682 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 973 [2021-01-06 14:16:46,683 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-06 14:16:46,692 INFO L225 Difference]: With dead ends: 8906 [2021-01-06 14:16:46,693 INFO L226 Difference]: Without dead ends: 4454 [2021-01-06 14:16:46,698 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 [2021-01-06 14:16:46,702 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4454 states. [2021-01-06 14:16:46,755 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4454 to 4454. [2021-01-06 14:16:46,756 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4454 states. [2021-01-06 14:16:46,763 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4454 states to 4454 states and 4609 transitions. [2021-01-06 14:16:46,764 INFO L78 Accepts]: Start accepts. Automaton has 4454 states and 4609 transitions. Word has length 973 [2021-01-06 14:16:46,765 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-06 14:16:46,765 INFO L481 AbstractCegarLoop]: Abstraction has 4454 states and 4609 transitions. [2021-01-06 14:16:46,765 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2021-01-06 14:16:46,765 INFO L276 IsEmpty]: Start isEmpty. Operand 4454 states and 4609 transitions. [2021-01-06 14:16:46,779 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1049 [2021-01-06 14:16:46,779 INFO L414 BasicCegarLoop]: Found error trace [2021-01-06 14:16:46,780 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, 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, 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, 6, 6, 6, 6, 5, 4, 4, 4, 4, 4, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-01-06 14:16:46,781 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2021-01-06 14:16:46,781 INFO L429 AbstractCegarLoop]: === Iteration 20 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-06 14:16:46,781 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-06 14:16:46,782 INFO L82 PathProgramCache]: Analyzing trace with hash 659097908, now seen corresponding path program 1 times [2021-01-06 14:16:46,782 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-06 14:16:46,782 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [482053739] [2021-01-06 14:16:46,782 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-06 14:16:46,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-06 14:16:47,998 INFO L134 CoverageAnalysis]: Checked inductivity of 3560 backedges. 1091 proven. 0 refuted. 0 times theorem prover too weak. 2469 trivial. 0 not checked. [2021-01-06 14:16:47,998 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [482053739] [2021-01-06 14:16:47,999 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-06 14:16:47,999 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-01-06 14:16:47,999 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1757689827] [2021-01-06 14:16:48,000 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-01-06 14:16:48,000 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-06 14:16:48,000 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-01-06 14:16:48,001 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-01-06 14:16:48,001 INFO L87 Difference]: Start difference. First operand 4454 states and 4609 transitions. Second operand 3 states. [2021-01-06 14:16:48,609 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-06 14:16:48,609 INFO L93 Difference]: Finished difference Result 8906 states and 9223 transitions. [2021-01-06 14:16:48,610 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-01-06 14:16:48,610 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 1048 [2021-01-06 14:16:48,611 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-06 14:16:48,619 INFO L225 Difference]: With dead ends: 8906 [2021-01-06 14:16:48,619 INFO L226 Difference]: Without dead ends: 4632 [2021-01-06 14:16:48,623 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 [2021-01-06 14:16:48,628 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4632 states. [2021-01-06 14:16:48,678 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4632 to 4632. [2021-01-06 14:16:48,678 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4632 states. [2021-01-06 14:16:48,687 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4632 states to 4632 states and 4767 transitions. [2021-01-06 14:16:48,687 INFO L78 Accepts]: Start accepts. Automaton has 4632 states and 4767 transitions. Word has length 1048 [2021-01-06 14:16:48,688 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-06 14:16:48,688 INFO L481 AbstractCegarLoop]: Abstraction has 4632 states and 4767 transitions. [2021-01-06 14:16:48,689 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2021-01-06 14:16:48,689 INFO L276 IsEmpty]: Start isEmpty. Operand 4632 states and 4767 transitions. [2021-01-06 14:16:48,711 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1097 [2021-01-06 14:16:48,711 INFO L414 BasicCegarLoop]: Found error trace [2021-01-06 14:16:48,712 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, 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, 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, 6, 5, 5, 5, 5, 5, 5, 5, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-01-06 14:16:48,713 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2021-01-06 14:16:48,713 INFO L429 AbstractCegarLoop]: === Iteration 21 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-06 14:16:48,713 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-06 14:16:48,714 INFO L82 PathProgramCache]: Analyzing trace with hash -1358554948, now seen corresponding path program 1 times [2021-01-06 14:16:48,714 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-06 14:16:48,714 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [469264050] [2021-01-06 14:16:48,714 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-06 14:16:48,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-06 14:16:50,230 INFO L134 CoverageAnalysis]: Checked inductivity of 3797 backedges. 2746 proven. 72 refuted. 0 times theorem prover too weak. 979 trivial. 0 not checked. [2021-01-06 14:16:50,231 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [469264050] [2021-01-06 14:16:50,231 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [383905835] [2021-01-06 14:16:50,231 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 [2021-01-06 14:16:50,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-06 14:16:50,525 INFO L263 TraceCheckSpWp]: Trace formula consists of 1371 conjuncts, 5 conjunts are in the unsatisfiable core [2021-01-06 14:16:50,538 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-01-06 14:16:51,992 INFO L134 CoverageAnalysis]: Checked inductivity of 3797 backedges. 2459 proven. 0 refuted. 0 times theorem prover too weak. 1338 trivial. 0 not checked. [2021-01-06 14:16:51,993 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2021-01-06 14:16:51,993 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [5] total 7 [2021-01-06 14:16:51,993 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [620408011] [2021-01-06 14:16:51,994 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-01-06 14:16:51,994 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-06 14:16:51,994 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-01-06 14:16:51,994 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2021-01-06 14:16:51,995 INFO L87 Difference]: Start difference. First operand 4632 states and 4767 transitions. Second operand 4 states. [2021-01-06 14:16:52,925 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-06 14:16:52,926 INFO L93 Difference]: Finished difference Result 9618 states and 9905 transitions. [2021-01-06 14:16:52,926 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-01-06 14:16:52,926 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 1096 [2021-01-06 14:16:52,928 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-06 14:16:52,936 INFO L225 Difference]: With dead ends: 9618 [2021-01-06 14:16:52,937 INFO L226 Difference]: Without dead ends: 5166 [2021-01-06 14:16:52,941 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 1100 GetRequests, 1095 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2021-01-06 14:16:52,946 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5166 states. [2021-01-06 14:16:53,005 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5166 to 4988. [2021-01-06 14:16:53,006 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4988 states. [2021-01-06 14:16:53,014 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4988 states to 4988 states and 5128 transitions. [2021-01-06 14:16:53,014 INFO L78 Accepts]: Start accepts. Automaton has 4988 states and 5128 transitions. Word has length 1096 [2021-01-06 14:16:53,015 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-06 14:16:53,015 INFO L481 AbstractCegarLoop]: Abstraction has 4988 states and 5128 transitions. [2021-01-06 14:16:53,015 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2021-01-06 14:16:53,015 INFO L276 IsEmpty]: Start isEmpty. Operand 4988 states and 5128 transitions. [2021-01-06 14:16:53,043 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1634 [2021-01-06 14:16:53,043 INFO L414 BasicCegarLoop]: Found error trace [2021-01-06 14:16:53,044 INFO L422 BasicCegarLoop]: trace histogram [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, 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, 13, 13, 12, 12, 12, 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, 11, 11, 11, 11, 10, 9, 9, 9, 8, 8, 8, 8, 7, 6, 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] [2021-01-06 14:16:53,259 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20,11 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-01-06 14:16:53,259 INFO L429 AbstractCegarLoop]: === Iteration 22 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-06 14:16:53,260 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-06 14:16:53,261 INFO L82 PathProgramCache]: Analyzing trace with hash -2052479464, now seen corresponding path program 1 times [2021-01-06 14:16:53,261 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-06 14:16:53,262 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1595327871] [2021-01-06 14:16:53,262 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-06 14:16:53,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-06 14:16:57,275 INFO L134 CoverageAnalysis]: Checked inductivity of 8500 backedges. 4297 proven. 588 refuted. 0 times theorem prover too weak. 3615 trivial. 0 not checked. [2021-01-06 14:16:57,275 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1595327871] [2021-01-06 14:16:57,276 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1118521733] [2021-01-06 14:16:57,276 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 [2021-01-06 14:16:57,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-06 14:16:57,713 INFO L263 TraceCheckSpWp]: Trace formula consists of 1998 conjuncts, 8 conjunts are in the unsatisfiable core [2021-01-06 14:16:57,734 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-01-06 14:16:58,692 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2021-01-06 14:16:58,769 INFO L757 QuantifierPusher]: Run 10 iterations of DualJunctionQuantifierElimination maybe there is a nontermination bug. [2021-01-06 14:16:58,806 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2021-01-06 14:16:58,813 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2021-01-06 14:16:58,820 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 8 disjuncts [2021-01-06 14:16:58,839 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2021-01-06 14:16:58,841 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 9 disjuncts [2021-01-06 14:16:58,857 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 11 disjuncts [2021-01-06 14:16:58,921 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2021-01-06 14:16:58,924 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 6 disjuncts [2021-01-06 14:16:59,007 INFO L757 QuantifierPusher]: Run 10 iterations of DualJunctionQuantifierElimination maybe there is a nontermination bug. [2021-01-06 14:16:59,107 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2021-01-06 14:16:59,111 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2021-01-06 14:16:59,113 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 8 disjuncts [2021-01-06 14:16:59,127 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2021-01-06 14:16:59,129 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 9 disjuncts [2021-01-06 14:16:59,136 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 11 disjuncts [2021-01-06 14:17:01,334 INFO L134 CoverageAnalysis]: Checked inductivity of 8500 backedges. 3486 proven. 438 refuted. 0 times theorem prover too weak. 4576 trivial. 0 not checked. [2021-01-06 14:17:01,334 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-01-06 14:17:01,335 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 11 [2021-01-06 14:17:01,335 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [223345346] [2021-01-06 14:17:01,337 INFO L461 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-01-06 14:17:01,337 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-06 14:17:01,337 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-01-06 14:17:01,338 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=83, Unknown=0, NotChecked=0, Total=110 [2021-01-06 14:17:01,338 INFO L87 Difference]: Start difference. First operand 4988 states and 5128 transitions. Second operand 11 states. [2021-01-06 14:17:09,360 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-06 14:17:09,361 INFO L93 Difference]: Finished difference Result 11771 states and 12113 transitions. [2021-01-06 14:17:09,362 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-01-06 14:17:09,362 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 1633 [2021-01-06 14:17:09,364 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-06 14:17:09,375 INFO L225 Difference]: With dead ends: 11771 [2021-01-06 14:17:09,376 INFO L226 Difference]: Without dead ends: 6946 [2021-01-06 14:17:09,381 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 1657 GetRequests, 1639 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 62 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=82, Invalid=298, Unknown=0, NotChecked=0, Total=380 [2021-01-06 14:17:09,387 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6946 states. [2021-01-06 14:17:09,457 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6946 to 5878. [2021-01-06 14:17:09,457 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5878 states. [2021-01-06 14:17:09,467 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5878 states to 5878 states and 6027 transitions. [2021-01-06 14:17:09,467 INFO L78 Accepts]: Start accepts. Automaton has 5878 states and 6027 transitions. Word has length 1633 [2021-01-06 14:17:09,469 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-06 14:17:09,469 INFO L481 AbstractCegarLoop]: Abstraction has 5878 states and 6027 transitions. [2021-01-06 14:17:09,469 INFO L482 AbstractCegarLoop]: Interpolant automaton has 11 states. [2021-01-06 14:17:09,469 INFO L276 IsEmpty]: Start isEmpty. Operand 5878 states and 6027 transitions. [2021-01-06 14:17:09,503 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1807 [2021-01-06 14:17:09,504 INFO L414 BasicCegarLoop]: Found error trace [2021-01-06 14:17:09,505 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, 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, 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, 11, 10, 9, 9, 9, 9, 9, 9, 8, 7, 6, 6, 6, 6, 6, 6, 6, 6, 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] [2021-01-06 14:17:09,718 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable21 [2021-01-06 14:17:09,719 INFO L429 AbstractCegarLoop]: === Iteration 23 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-06 14:17:09,719 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-06 14:17:09,719 INFO L82 PathProgramCache]: Analyzing trace with hash 334826005, now seen corresponding path program 1 times [2021-01-06 14:17:09,719 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-06 14:17:09,720 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1992325337] [2021-01-06 14:17:09,720 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-06 14:17:09,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-06 14:17:13,089 INFO L134 CoverageAnalysis]: Checked inductivity of 10109 backedges. 3302 proven. 1045 refuted. 0 times theorem prover too weak. 5762 trivial. 0 not checked. [2021-01-06 14:17:13,089 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1992325337] [2021-01-06 14:17:13,089 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [440620791] [2021-01-06 14:17:13,089 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 [2021-01-06 14:17:13,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-06 14:17:13,562 INFO L263 TraceCheckSpWp]: Trace formula consists of 2198 conjuncts, 2 conjunts are in the unsatisfiable core [2021-01-06 14:17:13,584 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-01-06 14:17:15,944 INFO L134 CoverageAnalysis]: Checked inductivity of 10109 backedges. 4347 proven. 0 refuted. 0 times theorem prover too weak. 5762 trivial. 0 not checked. [2021-01-06 14:17:15,944 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2021-01-06 14:17:15,945 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 6 [2021-01-06 14:17:15,945 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1474397305] [2021-01-06 14:17:15,946 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-01-06 14:17:15,946 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-06 14:17:15,946 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-01-06 14:17:15,946 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-01-06 14:17:15,946 INFO L87 Difference]: Start difference. First operand 5878 states and 6027 transitions. Second operand 3 states. [2021-01-06 14:17:16,534 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-06 14:17:16,534 INFO L93 Difference]: Finished difference Result 12466 states and 12773 transitions. [2021-01-06 14:17:16,535 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-01-06 14:17:16,535 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 1806 [2021-01-06 14:17:16,536 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-06 14:17:16,547 INFO L225 Difference]: With dead ends: 12466 [2021-01-06 14:17:16,547 INFO L226 Difference]: Without dead ends: 4810 [2021-01-06 14:17:16,557 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 1809 GetRequests, 1805 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-01-06 14:17:16,562 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4810 states. [2021-01-06 14:17:16,611 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4810 to 4276. [2021-01-06 14:17:16,612 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4276 states. [2021-01-06 14:17:16,619 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4276 states to 4276 states and 4363 transitions. [2021-01-06 14:17:16,619 INFO L78 Accepts]: Start accepts. Automaton has 4276 states and 4363 transitions. Word has length 1806 [2021-01-06 14:17:16,620 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-06 14:17:16,621 INFO L481 AbstractCegarLoop]: Abstraction has 4276 states and 4363 transitions. [2021-01-06 14:17:16,621 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2021-01-06 14:17:16,621 INFO L276 IsEmpty]: Start isEmpty. Operand 4276 states and 4363 transitions. [2021-01-06 14:17:16,655 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1878 [2021-01-06 14:17:16,656 INFO L414 BasicCegarLoop]: Found error trace [2021-01-06 14:17:16,657 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, 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, 14, 14, 14, 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, 13, 13, 13, 13, 12, 11, 11, 11, 10, 10, 10, 10, 9, 8, 7, 7, 7, 7, 7, 7, 6, 6, 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, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-01-06 14:17:16,870 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22,13 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-01-06 14:17:16,870 INFO L429 AbstractCegarLoop]: === Iteration 24 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-06 14:17:16,871 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-06 14:17:16,872 INFO L82 PathProgramCache]: Analyzing trace with hash -99629901, now seen corresponding path program 1 times [2021-01-06 14:17:16,872 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-06 14:17:16,872 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1697024028] [2021-01-06 14:17:16,872 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-06 14:17:17,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-06 14:17:19,820 INFO L134 CoverageAnalysis]: Checked inductivity of 11531 backedges. 4599 proven. 121 refuted. 0 times theorem prover too weak. 6811 trivial. 0 not checked. [2021-01-06 14:17:19,821 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1697024028] [2021-01-06 14:17:19,821 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [858516293] [2021-01-06 14:17:19,821 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 [2021-01-06 14:17:20,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-06 14:17:20,311 INFO L263 TraceCheckSpWp]: Trace formula consists of 2288 conjuncts, 5 conjunts are in the unsatisfiable core [2021-01-06 14:17:20,333 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-01-06 14:17:23,196 INFO L134 CoverageAnalysis]: Checked inductivity of 11531 backedges. 6920 proven. 0 refuted. 0 times theorem prover too weak. 4611 trivial. 0 not checked. [2021-01-06 14:17:23,197 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2021-01-06 14:17:23,197 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [4] total 7 [2021-01-06 14:17:23,197 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1864891672] [2021-01-06 14:17:23,199 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-01-06 14:17:23,199 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-06 14:17:23,200 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-01-06 14:17:23,200 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2021-01-06 14:17:23,200 INFO L87 Difference]: Start difference. First operand 4276 states and 4363 transitions. Second operand 6 states. [2021-01-06 14:17:24,876 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-06 14:17:24,876 INFO L93 Difference]: Finished difference Result 9796 states and 10030 transitions. [2021-01-06 14:17:24,876 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-01-06 14:17:24,876 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 1877 [2021-01-06 14:17:24,878 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-06 14:17:24,883 INFO L225 Difference]: With dead ends: 9796 [2021-01-06 14:17:24,883 INFO L226 Difference]: Without dead ends: 5166 [2021-01-06 14:17:24,887 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 1880 GetRequests, 1875 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2021-01-06 14:17:24,891 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5166 states. [2021-01-06 14:17:24,929 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5166 to 4632. [2021-01-06 14:17:24,929 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4632 states. [2021-01-06 14:17:24,935 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4632 states to 4632 states and 4700 transitions. [2021-01-06 14:17:24,935 INFO L78 Accepts]: Start accepts. Automaton has 4632 states and 4700 transitions. Word has length 1877 [2021-01-06 14:17:24,936 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-06 14:17:24,936 INFO L481 AbstractCegarLoop]: Abstraction has 4632 states and 4700 transitions. [2021-01-06 14:17:24,936 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2021-01-06 14:17:24,937 INFO L276 IsEmpty]: Start isEmpty. Operand 4632 states and 4700 transitions. [2021-01-06 14:17:24,967 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1931 [2021-01-06 14:17:24,967 INFO L414 BasicCegarLoop]: Found error trace [2021-01-06 14:17:24,968 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, 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, 14, 14, 14, 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, 13, 13, 13, 13, 12, 11, 11, 11, 10, 10, 10, 10, 9, 8, 7, 7, 7, 7, 7, 7, 6, 6, 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, 1, 1] [2021-01-06 14:17:25,183 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable23 [2021-01-06 14:17:25,184 INFO L429 AbstractCegarLoop]: === Iteration 25 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-06 14:17:25,185 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-06 14:17:25,186 INFO L82 PathProgramCache]: Analyzing trace with hash -704009136, now seen corresponding path program 1 times [2021-01-06 14:17:25,186 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-06 14:17:25,186 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1297204021] [2021-01-06 14:17:25,186 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-06 14:17:25,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-06 14:17:28,049 INFO L134 CoverageAnalysis]: Checked inductivity of 11699 backedges. 2024 proven. 0 refuted. 0 times theorem prover too weak. 9675 trivial. 0 not checked. [2021-01-06 14:17:28,049 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1297204021] [2021-01-06 14:17:28,049 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-06 14:17:28,050 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-01-06 14:17:28,050 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [273766925] [2021-01-06 14:17:28,051 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-01-06 14:17:28,051 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-06 14:17:28,051 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-01-06 14:17:28,051 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-01-06 14:17:28,051 INFO L87 Difference]: Start difference. First operand 4632 states and 4700 transitions. Second operand 3 states. [2021-01-06 14:17:28,617 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-06 14:17:28,617 INFO L93 Difference]: Finished difference Result 8906 states and 9040 transitions. [2021-01-06 14:17:28,617 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-01-06 14:17:28,617 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 1930 [2021-01-06 14:17:28,619 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-06 14:17:28,621 INFO L225 Difference]: With dead ends: 8906 [2021-01-06 14:17:28,621 INFO L226 Difference]: Without dead ends: 4632 [2021-01-06 14:17:28,624 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 [2021-01-06 14:17:28,627 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4632 states. [2021-01-06 14:17:28,657 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4632 to 4454. [2021-01-06 14:17:28,658 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4454 states. [2021-01-06 14:17:28,664 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4454 states to 4454 states and 4514 transitions. [2021-01-06 14:17:28,664 INFO L78 Accepts]: Start accepts. Automaton has 4454 states and 4514 transitions. Word has length 1930 [2021-01-06 14:17:28,666 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-06 14:17:28,666 INFO L481 AbstractCegarLoop]: Abstraction has 4454 states and 4514 transitions. [2021-01-06 14:17:28,666 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2021-01-06 14:17:28,666 INFO L276 IsEmpty]: Start isEmpty. Operand 4454 states and 4514 transitions. [2021-01-06 14:17:28,706 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 2128 [2021-01-06 14:17:28,706 INFO L414 BasicCegarLoop]: Found error trace [2021-01-06 14:17:28,708 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, 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, 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, 14, 14, 14, 14, 13, 12, 12, 12, 11, 11, 11, 11, 10, 9, 8, 8, 8, 8, 8, 8, 7, 7, 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, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-01-06 14:17:28,708 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2021-01-06 14:17:28,708 INFO L429 AbstractCegarLoop]: === Iteration 26 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-06 14:17:28,708 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-06 14:17:28,709 INFO L82 PathProgramCache]: Analyzing trace with hash -263362451, now seen corresponding path program 1 times [2021-01-06 14:17:28,709 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-06 14:17:28,709 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1951098993] [2021-01-06 14:17:28,710 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-06 14:17:28,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-06 14:17:32,265 INFO L134 CoverageAnalysis]: Checked inductivity of 14633 backedges. 9451 proven. 0 refuted. 0 times theorem prover too weak. 5182 trivial. 0 not checked. [2021-01-06 14:17:32,265 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1951098993] [2021-01-06 14:17:32,269 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-06 14:17:32,270 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-01-06 14:17:32,270 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2058442487] [2021-01-06 14:17:32,271 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-01-06 14:17:32,271 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-06 14:17:32,271 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-01-06 14:17:32,271 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-01-06 14:17:32,272 INFO L87 Difference]: Start difference. First operand 4454 states and 4514 transitions. Second operand 3 states. [2021-01-06 14:17:32,827 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-06 14:17:32,827 INFO L93 Difference]: Finished difference Result 8194 states and 8300 transitions. [2021-01-06 14:17:32,828 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-01-06 14:17:32,828 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 2127 [2021-01-06 14:17:32,830 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-06 14:17:32,833 INFO L225 Difference]: With dead ends: 8194 [2021-01-06 14:17:32,833 INFO L226 Difference]: Without dead ends: 4098 [2021-01-06 14:17:32,836 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 [2021-01-06 14:17:32,838 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4098 states. [2021-01-06 14:17:32,865 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4098 to 3742. [2021-01-06 14:17:32,865 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3742 states. [2021-01-06 14:17:32,869 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3742 states to 3742 states and 3777 transitions. [2021-01-06 14:17:32,870 INFO L78 Accepts]: Start accepts. Automaton has 3742 states and 3777 transitions. Word has length 2127 [2021-01-06 14:17:32,871 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-06 14:17:32,871 INFO L481 AbstractCegarLoop]: Abstraction has 3742 states and 3777 transitions. [2021-01-06 14:17:32,871 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2021-01-06 14:17:32,871 INFO L276 IsEmpty]: Start isEmpty. Operand 3742 states and 3777 transitions. [2021-01-06 14:17:32,910 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 2348 [2021-01-06 14:17:32,910 INFO L414 BasicCegarLoop]: Found error trace [2021-01-06 14:17:32,911 INFO L422 BasicCegarLoop]: trace histogram [19, 19, 19, 19, 19, 19, 19, 19, 19, 19, 19, 19, 19, 19, 19, 19, 19, 19, 19, 19, 19, 19, 19, 19, 19, 19, 19, 19, 19, 19, 19, 19, 19, 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, 18, 18, 18, 18, 18, 18, 18, 17, 17, 17, 17, 17, 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, 14, 14, 14, 13, 13, 13, 13, 12, 11, 10, 10, 10, 10, 10, 10, 9, 9, 7, 7, 7, 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, 4, 4, 4, 4, 4, 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] [2021-01-06 14:17:32,912 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2021-01-06 14:17:32,912 INFO L429 AbstractCegarLoop]: === Iteration 27 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-06 14:17:32,912 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-06 14:17:32,913 INFO L82 PathProgramCache]: Analyzing trace with hash -1943758325, now seen corresponding path program 1 times [2021-01-06 14:17:32,913 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-06 14:17:32,913 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [3489478] [2021-01-06 14:17:32,913 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-06 14:17:33,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-06 14:17:36,013 INFO L134 CoverageAnalysis]: Checked inductivity of 17391 backedges. 4239 proven. 0 refuted. 0 times theorem prover too weak. 13152 trivial. 0 not checked. [2021-01-06 14:17:36,014 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [3489478] [2021-01-06 14:17:36,014 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-06 14:17:36,014 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-01-06 14:17:36,014 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1756763280] [2021-01-06 14:17:36,015 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-01-06 14:17:36,016 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-06 14:17:36,016 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-01-06 14:17:36,016 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-01-06 14:17:36,016 INFO L87 Difference]: Start difference. First operand 3742 states and 3777 transitions. Second operand 3 states. [2021-01-06 14:17:36,559 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-06 14:17:36,560 INFO L93 Difference]: Finished difference Result 4810 states and 4862 transitions. [2021-01-06 14:17:36,560 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-01-06 14:17:36,560 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 2347 [2021-01-06 14:17:36,562 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-06 14:17:36,562 INFO L225 Difference]: With dead ends: 4810 [2021-01-06 14:17:36,562 INFO L226 Difference]: Without dead ends: 0 [2021-01-06 14:17:36,563 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 [2021-01-06 14:17:36,563 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-01-06 14:17:36,564 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-01-06 14:17:36,564 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2021-01-06 14:17:36,564 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-01-06 14:17:36,564 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 2347 [2021-01-06 14:17:36,564 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-06 14:17:36,564 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-01-06 14:17:36,564 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2021-01-06 14:17:36,564 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-01-06 14:17:36,564 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-01-06 14:17:36,564 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2021-01-06 14:17:36,566 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2021-01-06 14:17:36,737 WARN L197 SmtUtils]: Spent 159.00 ms on a formula simplification. DAG size of input: 202 DAG size of output: 169 [2021-01-06 14:17:36,859 WARN L197 SmtUtils]: Spent 119.00 ms on a formula simplification. DAG size of input: 202 DAG size of output: 169 [2021-01-06 14:17:37,805 WARN L197 SmtUtils]: Spent 941.00 ms on a formula simplification. DAG size of input: 162 DAG size of output: 77 [2021-01-06 14:17:38,801 WARN L197 SmtUtils]: Spent 992.00 ms on a formula simplification. DAG size of input: 162 DAG size of output: 77 [2021-01-06 14:17:38,806 INFO L189 CegarLoopUtils]: For program point L762(lines 762 880) no Hoare annotation was computed. [2021-01-06 14:17:38,806 INFO L189 CegarLoopUtils]: For program point L895(line 895) no Hoare annotation was computed. [2021-01-06 14:17:38,806 INFO L189 CegarLoopUtils]: For program point L829(lines 829 880) no Hoare annotation was computed. [2021-01-06 14:17:38,806 INFO L189 CegarLoopUtils]: For program point L631(lines 631 880) no Hoare annotation was computed. [2021-01-06 14:17:38,806 INFO L189 CegarLoopUtils]: For program point L565(lines 565 880) no Hoare annotation was computed. [2021-01-06 14:17:38,807 INFO L189 CegarLoopUtils]: For program point L169-1(lines 30 882) no Hoare annotation was computed. [2021-01-06 14:17:38,807 INFO L189 CegarLoopUtils]: For program point L103-1(lines 30 882) no Hoare annotation was computed. [2021-01-06 14:17:38,807 INFO L189 CegarLoopUtils]: For program point L37-1(lines 30 882) no Hoare annotation was computed. [2021-01-06 14:17:38,807 INFO L189 CegarLoopUtils]: For program point L698(lines 698 880) no Hoare annotation was computed. [2021-01-06 14:17:38,807 INFO L189 CegarLoopUtils]: For program point L500(lines 500 880) no Hoare annotation was computed. [2021-01-06 14:17:38,807 INFO L189 CegarLoopUtils]: For program point L170(line 170) no Hoare annotation was computed. [2021-01-06 14:17:38,807 INFO L189 CegarLoopUtils]: For program point L104(line 104) no Hoare annotation was computed. [2021-01-06 14:17:38,808 INFO L189 CegarLoopUtils]: For program point L38(line 38) no Hoare annotation was computed. [2021-01-06 14:17:38,808 INFO L189 CegarLoopUtils]: For program point L369(lines 369 880) no Hoare annotation was computed. [2021-01-06 14:17:38,808 INFO L189 CegarLoopUtils]: For program point L303(lines 303 880) no Hoare annotation was computed. [2021-01-06 14:17:38,808 INFO L189 CegarLoopUtils]: For program point L436(lines 436 880) no Hoare annotation was computed. [2021-01-06 14:17:38,808 INFO L189 CegarLoopUtils]: For program point L172-1(lines 30 882) no Hoare annotation was computed. [2021-01-06 14:17:38,808 INFO L189 CegarLoopUtils]: For program point L106-1(lines 30 882) no Hoare annotation was computed. [2021-01-06 14:17:38,809 INFO L189 CegarLoopUtils]: For program point L40-1(lines 30 882) no Hoare annotation was computed. [2021-01-06 14:17:38,809 INFO L189 CegarLoopUtils]: For program point L239(lines 239 880) no Hoare annotation was computed. [2021-01-06 14:17:38,809 INFO L189 CegarLoopUtils]: For program point L173(line 173) no Hoare annotation was computed. [2021-01-06 14:17:38,809 INFO L189 CegarLoopUtils]: For program point L107(line 107) no Hoare annotation was computed. [2021-01-06 14:17:38,809 INFO L189 CegarLoopUtils]: For program point L41(line 41) no Hoare annotation was computed. [2021-01-06 14:17:38,809 INFO L189 CegarLoopUtils]: For program point L768(lines 768 880) no Hoare annotation was computed. [2021-01-06 14:17:38,809 INFO L189 CegarLoopUtils]: For program point L636(lines 636 880) no Hoare annotation was computed. [2021-01-06 14:17:38,810 INFO L189 CegarLoopUtils]: For program point L835(lines 835 880) no Hoare annotation was computed. [2021-01-06 14:17:38,810 INFO L189 CegarLoopUtils]: For program point L571(lines 571 880) no Hoare annotation was computed. [2021-01-06 14:17:38,810 INFO L189 CegarLoopUtils]: For program point L505(lines 505 880) no Hoare annotation was computed. [2021-01-06 14:17:38,810 INFO L189 CegarLoopUtils]: For program point L175-1(lines 30 882) no Hoare annotation was computed. [2021-01-06 14:17:38,810 INFO L189 CegarLoopUtils]: For program point L109-1(lines 30 882) no Hoare annotation was computed. [2021-01-06 14:17:38,810 INFO L189 CegarLoopUtils]: For program point L43-1(lines 30 882) no Hoare annotation was computed. [2021-01-06 14:17:38,810 INFO L189 CegarLoopUtils]: For program point L704(lines 704 880) no Hoare annotation was computed. [2021-01-06 14:17:38,810 INFO L189 CegarLoopUtils]: For program point L176(line 176) no Hoare annotation was computed. [2021-01-06 14:17:38,810 INFO L189 CegarLoopUtils]: For program point L110(line 110) no Hoare annotation was computed. [2021-01-06 14:17:38,810 INFO L189 CegarLoopUtils]: For program point L44(line 44) no Hoare annotation was computed. [2021-01-06 14:17:38,811 INFO L189 CegarLoopUtils]: For program point L309(lines 309 880) no Hoare annotation was computed. [2021-01-06 14:17:38,811 INFO L189 CegarLoopUtils]: For program point L442(lines 442 880) no Hoare annotation was computed. [2021-01-06 14:17:38,811 INFO L189 CegarLoopUtils]: For program point L376(lines 376 880) no Hoare annotation was computed. [2021-01-06 14:17:38,811 INFO L189 CegarLoopUtils]: For program point L178-1(lines 30 882) no Hoare annotation was computed. [2021-01-06 14:17:38,811 INFO L189 CegarLoopUtils]: For program point L112-1(lines 30 882) no Hoare annotation was computed. [2021-01-06 14:17:38,811 INFO L189 CegarLoopUtils]: For program point L46-1(lines 30 882) no Hoare annotation was computed. [2021-01-06 14:17:38,811 INFO L189 CegarLoopUtils]: For program point L245(lines 245 880) no Hoare annotation was computed. [2021-01-06 14:17:38,811 INFO L189 CegarLoopUtils]: For program point L179(line 179) no Hoare annotation was computed. [2021-01-06 14:17:38,811 INFO L189 CegarLoopUtils]: For program point L113(line 113) no Hoare annotation was computed. [2021-01-06 14:17:38,811 INFO L189 CegarLoopUtils]: For program point L47(line 47) no Hoare annotation was computed. [2021-01-06 14:17:38,811 INFO L189 CegarLoopUtils]: For program point L774(lines 774 880) no Hoare annotation was computed. [2021-01-06 14:17:38,812 INFO L189 CegarLoopUtils]: For program point L642(lines 642 880) no Hoare annotation was computed. [2021-01-06 14:17:38,812 INFO L189 CegarLoopUtils]: For program point L510(lines 510 880) no Hoare annotation was computed. [2021-01-06 14:17:38,812 INFO L189 CegarLoopUtils]: For program point L841(lines 841 880) no Hoare annotation was computed. [2021-01-06 14:17:38,812 INFO L189 CegarLoopUtils]: For program point L181-1(lines 30 882) no Hoare annotation was computed. [2021-01-06 14:17:38,812 INFO L189 CegarLoopUtils]: For program point L115-1(lines 30 882) no Hoare annotation was computed. [2021-01-06 14:17:38,812 INFO L189 CegarLoopUtils]: For program point L49-1(lines 30 882) no Hoare annotation was computed. [2021-01-06 14:17:38,812 INFO L189 CegarLoopUtils]: For program point L710(lines 710 880) no Hoare annotation was computed. [2021-01-06 14:17:38,812 INFO L189 CegarLoopUtils]: For program point L578(lines 578 880) no Hoare annotation was computed. [2021-01-06 14:17:38,812 INFO L189 CegarLoopUtils]: For program point L182(line 182) no Hoare annotation was computed. [2021-01-06 14:17:38,812 INFO L189 CegarLoopUtils]: For program point L116(line 116) no Hoare annotation was computed. [2021-01-06 14:17:38,812 INFO L189 CegarLoopUtils]: For program point L50(line 50) no Hoare annotation was computed. [2021-01-06 14:17:38,812 INFO L189 CegarLoopUtils]: For program point L315(lines 315 880) no Hoare annotation was computed. [2021-01-06 14:17:38,813 INFO L189 CegarLoopUtils]: For program point L448(lines 448 880) no Hoare annotation was computed. [2021-01-06 14:17:38,813 INFO L189 CegarLoopUtils]: For program point L382(lines 382 880) no Hoare annotation was computed. [2021-01-06 14:17:38,813 INFO L189 CegarLoopUtils]: For program point L184-1(lines 30 882) no Hoare annotation was computed. [2021-01-06 14:17:38,813 INFO L189 CegarLoopUtils]: For program point L118-1(lines 30 882) no Hoare annotation was computed. [2021-01-06 14:17:38,813 INFO L189 CegarLoopUtils]: For program point L52-1(lines 30 882) no Hoare annotation was computed. [2021-01-06 14:17:38,813 INFO L189 CegarLoopUtils]: For program point L251(lines 251 880) no Hoare annotation was computed. [2021-01-06 14:17:38,813 INFO L189 CegarLoopUtils]: For program point L185(line 185) no Hoare annotation was computed. [2021-01-06 14:17:38,813 INFO L189 CegarLoopUtils]: For program point L119(line 119) no Hoare annotation was computed. [2021-01-06 14:17:38,813 INFO L189 CegarLoopUtils]: For program point L53(line 53) no Hoare annotation was computed. [2021-01-06 14:17:38,813 INFO L189 CegarLoopUtils]: For program point L648(lines 648 880) no Hoare annotation was computed. [2021-01-06 14:17:38,813 INFO L189 CegarLoopUtils]: For program point L516(lines 516 880) no Hoare annotation was computed. [2021-01-06 14:17:38,813 INFO L189 CegarLoopUtils]: For program point L847(lines 847 880) no Hoare annotation was computed. [2021-01-06 14:17:38,814 INFO L189 CegarLoopUtils]: For program point L781(lines 781 880) no Hoare annotation was computed. [2021-01-06 14:17:38,814 INFO L189 CegarLoopUtils]: For program point L583(lines 583 880) no Hoare annotation was computed. [2021-01-06 14:17:38,814 INFO L189 CegarLoopUtils]: For program point L187-1(lines 30 882) no Hoare annotation was computed. [2021-01-06 14:17:38,814 INFO L189 CegarLoopUtils]: For program point L121-1(lines 30 882) no Hoare annotation was computed. [2021-01-06 14:17:38,814 INFO L189 CegarLoopUtils]: For program point L55-1(lines 30 882) no Hoare annotation was computed. [2021-01-06 14:17:38,814 INFO L189 CegarLoopUtils]: For program point L716(lines 716 880) no Hoare annotation was computed. [2021-01-06 14:17:38,814 INFO L189 CegarLoopUtils]: For program point L188(line 188) no Hoare annotation was computed. [2021-01-06 14:17:38,814 INFO L189 CegarLoopUtils]: For program point L122(line 122) no Hoare annotation was computed. [2021-01-06 14:17:38,814 INFO L189 CegarLoopUtils]: For program point L56(line 56) no Hoare annotation was computed. [2021-01-06 14:17:38,814 INFO L189 CegarLoopUtils]: For program point L321(lines 321 880) no Hoare annotation was computed. [2021-01-06 14:17:38,815 INFO L189 CegarLoopUtils]: For program point L454(lines 454 880) no Hoare annotation was computed. [2021-01-06 14:17:38,815 INFO L189 CegarLoopUtils]: For program point L388(lines 388 880) no Hoare annotation was computed. [2021-01-06 14:17:38,815 INFO L189 CegarLoopUtils]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2021-01-06 14:17:38,815 INFO L189 CegarLoopUtils]: For program point L190-1(lines 30 882) no Hoare annotation was computed. [2021-01-06 14:17:38,815 INFO L189 CegarLoopUtils]: For program point L124-1(lines 30 882) no Hoare annotation was computed. [2021-01-06 14:17:38,815 INFO L189 CegarLoopUtils]: For program point L58-1(lines 30 882) no Hoare annotation was computed. [2021-01-06 14:17:38,815 INFO L189 CegarLoopUtils]: For program point L257(lines 257 880) no Hoare annotation was computed. [2021-01-06 14:17:38,815 INFO L189 CegarLoopUtils]: For program point L191(line 191) no Hoare annotation was computed. [2021-01-06 14:17:38,815 INFO L189 CegarLoopUtils]: For program point L125(line 125) no Hoare annotation was computed. [2021-01-06 14:17:38,815 INFO L189 CegarLoopUtils]: For program point L59(line 59) no Hoare annotation was computed. [2021-01-06 14:17:38,815 INFO L189 CegarLoopUtils]: For program point L852(lines 852 880) no Hoare annotation was computed. [2021-01-06 14:17:38,815 INFO L189 CegarLoopUtils]: For program point L654(lines 654 880) no Hoare annotation was computed. [2021-01-06 14:17:38,815 INFO L189 CegarLoopUtils]: For program point L522(lines 522 880) no Hoare annotation was computed. [2021-01-06 14:17:38,816 INFO L189 CegarLoopUtils]: For program point L787(lines 787 880) no Hoare annotation was computed. [2021-01-06 14:17:38,816 INFO L189 CegarLoopUtils]: For program point L589(lines 589 880) no Hoare annotation was computed. [2021-01-06 14:17:38,816 INFO L189 CegarLoopUtils]: For program point L193-1(lines 30 882) no Hoare annotation was computed. [2021-01-06 14:17:38,816 INFO L189 CegarLoopUtils]: For program point L127-1(lines 30 882) no Hoare annotation was computed. [2021-01-06 14:17:38,816 INFO L189 CegarLoopUtils]: For program point L61-1(lines 30 882) no Hoare annotation was computed. [2021-01-06 14:17:38,816 INFO L189 CegarLoopUtils]: For program point L722(lines 722 880) no Hoare annotation was computed. [2021-01-06 14:17:38,816 INFO L189 CegarLoopUtils]: For program point L194(line 194) no Hoare annotation was computed. [2021-01-06 14:17:38,816 INFO L189 CegarLoopUtils]: For program point L128(line 128) no Hoare annotation was computed. [2021-01-06 14:17:38,816 INFO L189 CegarLoopUtils]: For program point L62(line 62) no Hoare annotation was computed. [2021-01-06 14:17:38,816 INFO L189 CegarLoopUtils]: For program point L459(lines 459 880) no Hoare annotation was computed. [2021-01-06 14:17:38,816 INFO L189 CegarLoopUtils]: For program point L327(lines 327 880) no Hoare annotation was computed. [2021-01-06 14:17:38,817 INFO L189 CegarLoopUtils]: For program point L394(lines 394 880) no Hoare annotation was computed. [2021-01-06 14:17:38,817 INFO L189 CegarLoopUtils]: For program point L262(lines 262 880) no Hoare annotation was computed. [2021-01-06 14:17:38,817 INFO L189 CegarLoopUtils]: For program point L196-1(lines 30 882) no Hoare annotation was computed. [2021-01-06 14:17:38,817 INFO L189 CegarLoopUtils]: For program point L130-1(lines 30 882) no Hoare annotation was computed. [2021-01-06 14:17:38,817 INFO L189 CegarLoopUtils]: For program point L64-1(lines 30 882) no Hoare annotation was computed. [2021-01-06 14:17:38,817 INFO L189 CegarLoopUtils]: For program point L197(line 197) no Hoare annotation was computed. [2021-01-06 14:17:38,817 INFO L189 CegarLoopUtils]: For program point L131(line 131) no Hoare annotation was computed. [2021-01-06 14:17:38,817 INFO L189 CegarLoopUtils]: For program point L65(line 65) no Hoare annotation was computed. [2021-01-06 14:17:38,817 INFO L189 CegarLoopUtils]: For program point L-1(line -1) no Hoare annotation was computed. [2021-01-06 14:17:38,817 INFO L189 CegarLoopUtils]: For program point L858(lines 858 880) no Hoare annotation was computed. [2021-01-06 14:17:38,817 INFO L189 CegarLoopUtils]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 125) no Hoare annotation was computed. [2021-01-06 14:17:38,818 INFO L189 CegarLoopUtils]: For program point L660(lines 660 880) no Hoare annotation was computed. [2021-01-06 14:17:38,818 INFO L189 CegarLoopUtils]: For program point L528(lines 528 880) no Hoare annotation was computed. [2021-01-06 14:17:38,818 INFO L189 CegarLoopUtils]: For program point L793(lines 793 880) no Hoare annotation was computed. [2021-01-06 14:17:38,818 INFO L189 CegarLoopUtils]: For program point L595(lines 595 880) no Hoare annotation was computed. [2021-01-06 14:17:38,818 INFO L189 CegarLoopUtils]: For program point L199-1(lines 30 882) no Hoare annotation was computed. [2021-01-06 14:17:38,818 INFO L189 CegarLoopUtils]: For program point L133-1(lines 30 882) no Hoare annotation was computed. [2021-01-06 14:17:38,818 INFO L189 CegarLoopUtils]: For program point L67-1(lines 30 882) no Hoare annotation was computed. [2021-01-06 14:17:38,818 INFO L189 CegarLoopUtils]: For program point L728(lines 728 880) no Hoare annotation was computed. [2021-01-06 14:17:38,818 INFO L189 CegarLoopUtils]: For program point L464(lines 464 880) no Hoare annotation was computed. [2021-01-06 14:17:38,819 INFO L189 CegarLoopUtils]: For program point L200(line 200) no Hoare annotation was computed. [2021-01-06 14:17:38,819 INFO L189 CegarLoopUtils]: For program point L134(line 134) no Hoare annotation was computed. [2021-01-06 14:17:38,819 INFO L189 CegarLoopUtils]: For program point L68(line 68) no Hoare annotation was computed. [2021-01-06 14:17:38,819 INFO L189 CegarLoopUtils]: For program point L333(lines 333 880) no Hoare annotation was computed. [2021-01-06 14:17:38,819 INFO L189 CegarLoopUtils]: For program point L400(lines 400 880) no Hoare annotation was computed. [2021-01-06 14:17:38,819 INFO L189 CegarLoopUtils]: For program point L268(lines 268 880) no Hoare annotation was computed. [2021-01-06 14:17:38,819 INFO L189 CegarLoopUtils]: For program point L202-1(lines 30 882) no Hoare annotation was computed. [2021-01-06 14:17:38,819 INFO L189 CegarLoopUtils]: For program point L136-1(lines 30 882) no Hoare annotation was computed. [2021-01-06 14:17:38,819 INFO L189 CegarLoopUtils]: For program point L70-1(lines 30 882) no Hoare annotation was computed. [2021-01-06 14:17:38,819 INFO L189 CegarLoopUtils]: For program point L203(line 203) no Hoare annotation was computed. [2021-01-06 14:17:38,819 INFO L189 CegarLoopUtils]: For program point L137(line 137) no Hoare annotation was computed. [2021-01-06 14:17:38,820 INFO L189 CegarLoopUtils]: For program point L71(line 71) no Hoare annotation was computed. [2021-01-06 14:17:38,820 INFO L189 CegarLoopUtils]: For program point L864(lines 864 880) no Hoare annotation was computed. [2021-01-06 14:17:38,820 INFO L189 CegarLoopUtils]: For program point L666(lines 666 880) no Hoare annotation was computed. [2021-01-06 14:17:38,820 INFO L189 CegarLoopUtils]: For program point L534(lines 534 880) no Hoare annotation was computed. [2021-01-06 14:17:38,820 INFO L189 CegarLoopUtils]: For program point L799(lines 799 880) no Hoare annotation was computed. [2021-01-06 14:17:38,820 INFO L189 CegarLoopUtils]: For program point L601(lines 601 880) no Hoare annotation was computed. [2021-01-06 14:17:38,820 INFO L189 CegarLoopUtils]: For program point L205-1(lines 30 882) no Hoare annotation was computed. [2021-01-06 14:17:38,820 INFO L189 CegarLoopUtils]: For program point L139-1(lines 30 882) no Hoare annotation was computed. [2021-01-06 14:17:38,820 INFO L189 CegarLoopUtils]: For program point L73-1(lines 30 882) no Hoare annotation was computed. [2021-01-06 14:17:38,820 INFO L189 CegarLoopUtils]: For program point L734(lines 734 880) no Hoare annotation was computed. [2021-01-06 14:17:38,820 INFO L189 CegarLoopUtils]: For program point L470(lines 470 880) no Hoare annotation was computed. [2021-01-06 14:17:38,821 INFO L189 CegarLoopUtils]: For program point L206(line 206) no Hoare annotation was computed. [2021-01-06 14:17:38,821 INFO L189 CegarLoopUtils]: For program point L140(line 140) no Hoare annotation was computed. [2021-01-06 14:17:38,821 INFO L189 CegarLoopUtils]: For program point L74(line 74) no Hoare annotation was computed. [2021-01-06 14:17:38,821 INFO L189 CegarLoopUtils]: For program point L339(lines 339 880) no Hoare annotation was computed. [2021-01-06 14:17:38,821 INFO L189 CegarLoopUtils]: For program point L406(lines 406 880) no Hoare annotation was computed. [2021-01-06 14:17:38,821 INFO L189 CegarLoopUtils]: For program point L274(lines 274 880) no Hoare annotation was computed. [2021-01-06 14:17:38,821 INFO L189 CegarLoopUtils]: For program point L208-1(lines 30 882) no Hoare annotation was computed. [2021-01-06 14:17:38,821 INFO L189 CegarLoopUtils]: For program point L142-1(lines 30 882) no Hoare annotation was computed. [2021-01-06 14:17:38,821 INFO L189 CegarLoopUtils]: For program point L76-1(lines 30 882) no Hoare annotation was computed. [2021-01-06 14:17:38,821 INFO L189 CegarLoopUtils]: For program point L869(lines 869 880) no Hoare annotation was computed. [2021-01-06 14:17:38,821 INFO L189 CegarLoopUtils]: For program point L209(line 209) no Hoare annotation was computed. [2021-01-06 14:17:38,821 INFO L189 CegarLoopUtils]: For program point L143(line 143) no Hoare annotation was computed. [2021-01-06 14:17:38,822 INFO L189 CegarLoopUtils]: For program point L77(line 77) no Hoare annotation was computed. [2021-01-06 14:17:38,822 INFO L189 CegarLoopUtils]: For program point L672(lines 672 880) no Hoare annotation was computed. [2021-01-06 14:17:38,822 INFO L189 CegarLoopUtils]: For program point L540(lines 540 880) no Hoare annotation was computed. [2021-01-06 14:17:38,822 INFO L189 CegarLoopUtils]: For program point L805(lines 805 880) no Hoare annotation was computed. [2021-01-06 14:17:38,822 INFO L189 CegarLoopUtils]: For program point L607(lines 607 880) no Hoare annotation was computed. [2021-01-06 14:17:38,822 INFO L189 CegarLoopUtils]: For program point L211-1(lines 30 882) no Hoare annotation was computed. [2021-01-06 14:17:38,822 INFO L189 CegarLoopUtils]: For program point L145-1(lines 30 882) no Hoare annotation was computed. [2021-01-06 14:17:38,822 INFO L189 CegarLoopUtils]: For program point L79-1(lines 30 882) no Hoare annotation was computed. [2021-01-06 14:17:38,822 INFO L189 CegarLoopUtils]: For program point L740(lines 740 880) no Hoare annotation was computed. [2021-01-06 14:17:38,822 INFO L189 CegarLoopUtils]: For program point L212(line 212) no Hoare annotation was computed. [2021-01-06 14:17:38,822 INFO L189 CegarLoopUtils]: For program point L146(line 146) no Hoare annotation was computed. [2021-01-06 14:17:38,822 INFO L189 CegarLoopUtils]: For program point L80(line 80) no Hoare annotation was computed. [2021-01-06 14:17:38,823 INFO L189 CegarLoopUtils]: For program point L477(lines 477 880) no Hoare annotation was computed. [2021-01-06 14:17:38,823 INFO L189 CegarLoopUtils]: For program point L345(lines 345 880) no Hoare annotation was computed. [2021-01-06 14:17:38,823 INFO L189 CegarLoopUtils]: For program point L279(lines 279 880) no Hoare annotation was computed. [2021-01-06 14:17:38,823 INFO L189 CegarLoopUtils]: For program point L412(lines 412 880) no Hoare annotation was computed. [2021-01-06 14:17:38,823 INFO L189 CegarLoopUtils]: For program point L148-1(lines 30 882) no Hoare annotation was computed. [2021-01-06 14:17:38,823 INFO L189 CegarLoopUtils]: For program point L82-1(lines 30 882) no Hoare annotation was computed. [2021-01-06 14:17:38,823 INFO L189 CegarLoopUtils]: For program point L875(lines 875 880) no Hoare annotation was computed. [2021-01-06 14:17:38,823 INFO L189 CegarLoopUtils]: For program point L149(line 149) no Hoare annotation was computed. [2021-01-06 14:17:38,823 INFO L189 CegarLoopUtils]: For program point L83(line 83) no Hoare annotation was computed. [2021-01-06 14:17:38,823 INFO L189 CegarLoopUtils]: For program point L678(lines 678 880) no Hoare annotation was computed. [2021-01-06 14:17:38,823 INFO L189 CegarLoopUtils]: For program point L546(lines 546 880) no Hoare annotation was computed. [2021-01-06 14:17:38,823 INFO L189 CegarLoopUtils]: For program point L811(lines 811 880) no Hoare annotation was computed. [2021-01-06 14:17:38,824 INFO L189 CegarLoopUtils]: For program point L745(lines 745 880) no Hoare annotation was computed. [2021-01-06 14:17:38,824 INFO L189 CegarLoopUtils]: For program point L613(lines 613 880) no Hoare annotation was computed. [2021-01-06 14:17:38,824 INFO L189 CegarLoopUtils]: For program point L151-1(lines 30 882) no Hoare annotation was computed. [2021-01-06 14:17:38,824 INFO L189 CegarLoopUtils]: For program point L85-1(lines 30 882) no Hoare annotation was computed. [2021-01-06 14:17:38,824 INFO L189 CegarLoopUtils]: For program point L482(lines 482 880) no Hoare annotation was computed. [2021-01-06 14:17:38,824 INFO L189 CegarLoopUtils]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2021-01-06 14:17:38,824 INFO L189 CegarLoopUtils]: For program point L152(line 152) no Hoare annotation was computed. [2021-01-06 14:17:38,824 INFO L189 CegarLoopUtils]: For program point L86(line 86) no Hoare annotation was computed. [2021-01-06 14:17:38,824 INFO L189 CegarLoopUtils]: For program point L351(lines 351 880) no Hoare annotation was computed. [2021-01-06 14:17:38,824 INFO L189 CegarLoopUtils]: For program point L285(lines 285 880) no Hoare annotation was computed. [2021-01-06 14:17:38,824 INFO L189 CegarLoopUtils]: For program point L418(lines 418 880) no Hoare annotation was computed. [2021-01-06 14:17:38,824 INFO L189 CegarLoopUtils]: For program point L154-1(lines 30 882) no Hoare annotation was computed. [2021-01-06 14:17:38,825 INFO L189 CegarLoopUtils]: For program point L88-1(lines 30 882) no Hoare annotation was computed. [2021-01-06 14:17:38,825 INFO L185 CegarLoopUtils]: At program point L881(lines 30 882) the Hoare annotation is: (let ((.cse6 (<= 82 ~a12~0)) (.cse4 (<= 9 ~a15~0)) (.cse13 (<= ~a12~0 10)) (.cse5 (< 95380 ~a12~0)) (.cse0 (<= ~a15~0 7)) (.cse10 (< 0 (+ ~a12~0 43))) (.cse12 (<= 7 ~a21~0)) (.cse8 (<= ~a15~0 8)) (.cse7 (<= (+ ~a12~0 49) 0)) (.cse15 (<= ~a21~0 6)) (.cse16 (<= ~a15~0 6)) (.cse11 (<= ~a12~0 11)) (.cse14 (<= 10 ~a21~0)) (.cse1 (<= 8 ~a21~0)) (.cse2 (= ~a24~0 1)) (.cse9 (< 18 ~a12~0)) (.cse3 (<= ~a21~0 8))) (or (and .cse0 .cse1 .cse2 .cse3) (and (<= ~a12~0 95434) .cse2 .cse4 .cse5) (and .cse6 .cse1 .cse2 (<= ~a12~0 73282) .cse3) (and .cse0 .cse7 .cse2 .cse3) (and .cse1 .cse2 .cse8 (<= ~a21~0 9) .cse9 (<= ~a12~0 76)) (and .cse10 .cse11 .cse1 .cse2 .cse8) (and .cse6 .cse12 .cse2 .cse4) (and .cse1 .cse2 .cse4 (<= (+ ~a12~0 526767) 0) .cse3) (and .cse10 .cse13 .cse1 .cse2 .cse3) (and (<= 8 ~a15~0) .cse10 .cse13 .cse2 .cse8) (and .cse0 .cse10 .cse1 .cse2) (and .cse2 .cse14 .cse5) (and .cse0 .cse10 .cse2 .cse15) (and .cse2 .cse8 (<= 286349 ~a12~0) .cse15) (and (<= ~a21~0 7) .cse12 .cse7 .cse2 .cse8) (and .cse7 .cse15 .cse16) (and .cse2 .cse16) (and .cse11 .cse2 .cse14) (and .cse1 .cse2 (<= ~a12~0 72) .cse9 .cse3))) [2021-01-06 14:17:38,825 INFO L189 CegarLoopUtils]: For program point L551(lines 551 880) no Hoare annotation was computed. [2021-01-06 14:17:38,825 INFO L189 CegarLoopUtils]: For program point L221(lines 221 880) no Hoare annotation was computed. [2021-01-06 14:17:38,825 INFO L189 CegarLoopUtils]: For program point L155(line 155) no Hoare annotation was computed. [2021-01-06 14:17:38,826 INFO L189 CegarLoopUtils]: For program point L89(line 89) no Hoare annotation was computed. [2021-01-06 14:17:38,826 INFO L189 CegarLoopUtils]: For program point L684(lines 684 880) no Hoare annotation was computed. [2021-01-06 14:17:38,826 INFO L189 CegarLoopUtils]: For program point L817(lines 817 880) no Hoare annotation was computed. [2021-01-06 14:17:38,826 INFO L189 CegarLoopUtils]: For program point L751(lines 751 880) no Hoare annotation was computed. [2021-01-06 14:17:38,826 INFO L189 CegarLoopUtils]: For program point L619(lines 619 880) no Hoare annotation was computed. [2021-01-06 14:17:38,826 INFO L189 CegarLoopUtils]: For program point L157-1(lines 30 882) no Hoare annotation was computed. [2021-01-06 14:17:38,826 INFO L189 CegarLoopUtils]: For program point L91-1(lines 30 882) no Hoare annotation was computed. [2021-01-06 14:17:38,826 INFO L192 CegarLoopUtils]: At program point L884(lines 884 900) the Hoare annotation is: true [2021-01-06 14:17:38,826 INFO L189 CegarLoopUtils]: For program point L488(lines 488 880) no Hoare annotation was computed. [2021-01-06 14:17:38,826 INFO L189 CegarLoopUtils]: For program point L290(lines 290 880) no Hoare annotation was computed. [2021-01-06 14:17:38,826 INFO L189 CegarLoopUtils]: For program point L158(line 158) no Hoare annotation was computed. [2021-01-06 14:17:38,826 INFO L189 CegarLoopUtils]: For program point L92(line 92) no Hoare annotation was computed. [2021-01-06 14:17:38,827 INFO L189 CegarLoopUtils]: For program point L687(lines 687 880) no Hoare annotation was computed. [2021-01-06 14:17:38,827 INFO L189 CegarLoopUtils]: For program point L357(lines 357 880) no Hoare annotation was computed. [2021-01-06 14:17:38,827 INFO L189 CegarLoopUtils]: For program point L424(lines 424 880) no Hoare annotation was computed. [2021-01-06 14:17:38,827 INFO L189 CegarLoopUtils]: For program point L160-1(lines 30 882) no Hoare annotation was computed. [2021-01-06 14:17:38,827 INFO L189 CegarLoopUtils]: For program point L94-1(lines 30 882) no Hoare annotation was computed. [2021-01-06 14:17:38,827 INFO L189 CegarLoopUtils]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2021-01-06 14:17:38,827 INFO L189 CegarLoopUtils]: For program point L557(lines 557 880) no Hoare annotation was computed. [2021-01-06 14:17:38,827 INFO L189 CegarLoopUtils]: For program point L227(lines 227 880) no Hoare annotation was computed. [2021-01-06 14:17:38,827 INFO L189 CegarLoopUtils]: For program point L161(line 161) no Hoare annotation was computed. [2021-01-06 14:17:38,827 INFO L189 CegarLoopUtils]: For program point L95(line 95) no Hoare annotation was computed. [2021-01-06 14:17:38,827 INFO L189 CegarLoopUtils]: For program point L757(lines 757 880) no Hoare annotation was computed. [2021-01-06 14:17:38,827 INFO L189 CegarLoopUtils]: For program point L625(lines 625 880) no Hoare annotation was computed. [2021-01-06 14:17:38,828 INFO L189 CegarLoopUtils]: For program point L163-1(lines 30 882) no Hoare annotation was computed. [2021-01-06 14:17:38,828 INFO L189 CegarLoopUtils]: For program point L97-1(lines 30 882) no Hoare annotation was computed. [2021-01-06 14:17:38,828 INFO L189 CegarLoopUtils]: For program point L31(lines 31 33) no Hoare annotation was computed. [2021-01-06 14:17:38,828 INFO L189 CegarLoopUtils]: For program point L31-2(lines 30 882) no Hoare annotation was computed. [2021-01-06 14:17:38,828 INFO L189 CegarLoopUtils]: For program point L824(lines 824 880) no Hoare annotation was computed. [2021-01-06 14:17:38,828 INFO L185 CegarLoopUtils]: At program point L890-2(lines 890 899) the Hoare annotation is: (let ((.cse6 (<= 82 ~a12~0)) (.cse4 (<= 9 ~a15~0)) (.cse13 (<= ~a12~0 10)) (.cse5 (< 95380 ~a12~0)) (.cse0 (<= ~a15~0 7)) (.cse10 (< 0 (+ ~a12~0 43))) (.cse12 (<= 7 ~a21~0)) (.cse8 (<= ~a15~0 8)) (.cse7 (<= (+ ~a12~0 49) 0)) (.cse15 (<= ~a21~0 6)) (.cse16 (<= ~a15~0 6)) (.cse11 (<= ~a12~0 11)) (.cse14 (<= 10 ~a21~0)) (.cse1 (<= 8 ~a21~0)) (.cse2 (= ~a24~0 1)) (.cse9 (< 18 ~a12~0)) (.cse3 (<= ~a21~0 8))) (or (and .cse0 .cse1 .cse2 .cse3) (and (<= ~a12~0 95434) .cse2 .cse4 .cse5) (and .cse6 .cse1 .cse2 (<= ~a12~0 73282) .cse3) (and .cse0 .cse7 .cse2 .cse3) (and .cse1 .cse2 .cse8 (<= ~a21~0 9) .cse9 (<= ~a12~0 76)) (and .cse10 .cse11 .cse1 .cse2 .cse8) (and .cse6 .cse12 .cse2 .cse4) (and .cse1 .cse2 .cse4 (<= (+ ~a12~0 526767) 0) .cse3) (and .cse10 .cse13 .cse1 .cse2 .cse3) (and (<= 8 ~a15~0) .cse10 .cse13 .cse2 .cse8) (and .cse0 .cse10 .cse1 .cse2) (and .cse2 .cse14 .cse5) (and .cse0 .cse10 .cse2 .cse15) (and .cse2 .cse8 (<= 286349 ~a12~0) .cse15) (and (<= ~a21~0 7) .cse12 .cse7 .cse2 .cse8) (and .cse7 .cse15 .cse16) (and .cse2 .cse16) (and .cse11 .cse2 .cse14) (and .cse1 .cse2 (<= ~a12~0 72) .cse9 .cse3))) [2021-01-06 14:17:38,828 INFO L189 CegarLoopUtils]: For program point L494(lines 494 880) no Hoare annotation was computed. [2021-01-06 14:17:38,828 INFO L189 CegarLoopUtils]: For program point L296(lines 296 880) no Hoare annotation was computed. [2021-01-06 14:17:38,828 INFO L189 CegarLoopUtils]: For program point L164(line 164) no Hoare annotation was computed. [2021-01-06 14:17:38,829 INFO L189 CegarLoopUtils]: For program point L98(line 98) no Hoare annotation was computed. [2021-01-06 14:17:38,829 INFO L189 CegarLoopUtils]: For program point L32(line 32) no Hoare annotation was computed. [2021-01-06 14:17:38,829 INFO L189 CegarLoopUtils]: For program point L693(lines 693 880) no Hoare annotation was computed. [2021-01-06 14:17:38,829 INFO L189 CegarLoopUtils]: For program point L363(lines 363 880) no Hoare annotation was computed. [2021-01-06 14:17:38,829 INFO L189 CegarLoopUtils]: For program point L562(lines 562 880) no Hoare annotation was computed. [2021-01-06 14:17:38,829 INFO L189 CegarLoopUtils]: For program point L430(lines 430 880) no Hoare annotation was computed. [2021-01-06 14:17:38,829 INFO L189 CegarLoopUtils]: For program point L166-1(lines 30 882) no Hoare annotation was computed. [2021-01-06 14:17:38,829 INFO L189 CegarLoopUtils]: For program point L100-1(lines 30 882) no Hoare annotation was computed. [2021-01-06 14:17:38,829 INFO L189 CegarLoopUtils]: For program point L34-1(lines 30 882) no Hoare annotation was computed. [2021-01-06 14:17:38,829 INFO L189 CegarLoopUtils]: For program point L233(lines 233 880) no Hoare annotation was computed. [2021-01-06 14:17:38,829 INFO L189 CegarLoopUtils]: For program point L167(line 167) no Hoare annotation was computed. [2021-01-06 14:17:38,830 INFO L189 CegarLoopUtils]: For program point L101(line 101) no Hoare annotation was computed. [2021-01-06 14:17:38,830 INFO L189 CegarLoopUtils]: For program point L35(line 35) no Hoare annotation was computed. [2021-01-06 14:17:38,857 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 06.01 02:17:38 BoogieIcfgContainer [2021-01-06 14:17:38,857 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-01-06 14:17:38,858 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-01-06 14:17:38,858 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-01-06 14:17:38,860 INFO L275 PluginConnector]: Witness Printer initialized [2021-01-06 14:17:38,864 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.01 02:16:10" (3/4) ... [2021-01-06 14:17:38,869 INFO L137 WitnessPrinter]: Generating witness for correct program [2021-01-06 14:17:38,901 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 8 nodes and edges [2021-01-06 14:17:38,906 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2021-01-06 14:17:38,907 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-01-06 14:17:38,909 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-01-06 14:17:39,093 INFO L141 WitnessManager]: Wrote witness to /storage/repos/svcomp/c/eca-rers2012/Problem14_label50.c-witness.graphml [2021-01-06 14:17:39,093 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-01-06 14:17:39,094 INFO L168 Benchmark]: Toolchain (without parser) took 91539.46 ms. Allocated memory was 153.1 MB in the beginning and 2.2 GB in the end (delta: 2.1 GB). Free memory was 126.5 MB in the beginning and 1.9 GB in the end (delta: -1.8 GB). Peak memory consumption was 268.8 MB. Max. memory is 8.0 GB. [2021-01-06 14:17:39,095 INFO L168 Benchmark]: CDTParser took 0.16 ms. Allocated memory is still 153.1 MB. Free memory is still 125.3 MB. There was no memory consumed. Max. memory is 8.0 GB. [2021-01-06 14:17:39,095 INFO L168 Benchmark]: CACSL2BoogieTranslator took 854.79 ms. Allocated memory is still 153.1 MB. Free memory was 126.3 MB in the beginning and 126.5 MB in the end (delta: -184.6 kB). Peak memory consumption was 30.2 MB. Max. memory is 8.0 GB. [2021-01-06 14:17:39,095 INFO L168 Benchmark]: Boogie Procedure Inliner took 124.75 ms. Allocated memory is still 153.1 MB. Free memory was 126.5 MB in the beginning and 117.1 MB in the end (delta: 9.4 MB). Peak memory consumption was 9.4 MB. Max. memory is 8.0 GB. [2021-01-06 14:17:39,096 INFO L168 Benchmark]: Boogie Preprocessor took 92.73 ms. Allocated memory is still 153.1 MB. Free memory was 117.1 MB in the beginning and 110.8 MB in the end (delta: 6.3 MB). Peak memory consumption was 6.3 MB. Max. memory is 8.0 GB. [2021-01-06 14:17:39,096 INFO L168 Benchmark]: RCFGBuilder took 1755.26 ms. Allocated memory was 153.1 MB in the beginning and 184.5 MB in the end (delta: 31.5 MB). Free memory was 110.8 MB in the beginning and 96.3 MB in the end (delta: 14.4 MB). Peak memory consumption was 71.0 MB. Max. memory is 8.0 GB. [2021-01-06 14:17:39,096 INFO L168 Benchmark]: TraceAbstraction took 88468.60 ms. Allocated memory was 184.5 MB in the beginning and 2.2 GB in the end (delta: 2.1 GB). Free memory was 95.8 MB in the beginning and 2.0 GB in the end (delta: -1.9 GB). Peak memory consumption was 1.3 GB. Max. memory is 8.0 GB. [2021-01-06 14:17:39,097 INFO L168 Benchmark]: Witness Printer took 235.22 ms. Allocated memory is still 2.2 GB. Free memory was 2.0 GB in the beginning and 1.9 GB in the end (delta: 19.4 MB). Peak memory consumption was 18.9 MB. Max. memory is 8.0 GB. [2021-01-06 14:17:39,101 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.16 ms. Allocated memory is still 153.1 MB. Free memory is still 125.3 MB. There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 854.79 ms. Allocated memory is still 153.1 MB. Free memory was 126.3 MB in the beginning and 126.5 MB in the end (delta: -184.6 kB). Peak memory consumption was 30.2 MB. Max. memory is 8.0 GB. * Boogie Procedure Inliner took 124.75 ms. Allocated memory is still 153.1 MB. Free memory was 126.5 MB in the beginning and 117.1 MB in the end (delta: 9.4 MB). Peak memory consumption was 9.4 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 92.73 ms. Allocated memory is still 153.1 MB. Free memory was 117.1 MB in the beginning and 110.8 MB in the end (delta: 6.3 MB). Peak memory consumption was 6.3 MB. Max. memory is 8.0 GB. * RCFGBuilder took 1755.26 ms. Allocated memory was 153.1 MB in the beginning and 184.5 MB in the end (delta: 31.5 MB). Free memory was 110.8 MB in the beginning and 96.3 MB in the end (delta: 14.4 MB). Peak memory consumption was 71.0 MB. Max. memory is 8.0 GB. * TraceAbstraction took 88468.60 ms. Allocated memory was 184.5 MB in the beginning and 2.2 GB in the end (delta: 2.1 GB). Free memory was 95.8 MB in the beginning and 2.0 GB in the end (delta: -1.9 GB). Peak memory consumption was 1.3 GB. Max. memory is 8.0 GB. * Witness Printer took 235.22 ms. Allocated memory is still 2.2 GB. Free memory was 2.0 GB in the beginning and 1.9 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: 125]: 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: ((((((((((((((((((((a15 <= 7 && 8 <= a21) && a24 == 1) && a21 <= 8) || (((a12 <= 95434 && a24 == 1) && 9 <= a15) && 95380 < a12)) || ((((82 <= a12 && 8 <= a21) && a24 == 1) && a12 <= 73282) && a21 <= 8)) || (((a15 <= 7 && a12 + 49 <= 0) && a24 == 1) && a21 <= 8)) || (((((8 <= a21 && a24 == 1) && a15 <= 8) && a21 <= 9) && 18 < a12) && a12 <= 76)) || ((((0 < a12 + 43 && a12 <= 11) && 8 <= a21) && a24 == 1) && a15 <= 8)) || (((82 <= a12 && 7 <= a21) && a24 == 1) && 9 <= a15)) || ((((8 <= a21 && a24 == 1) && 9 <= a15) && a12 + 526767 <= 0) && a21 <= 8)) || ((((0 < a12 + 43 && a12 <= 10) && 8 <= a21) && a24 == 1) && a21 <= 8)) || ((((8 <= a15 && 0 < a12 + 43) && a12 <= 10) && a24 == 1) && a15 <= 8)) || (((a15 <= 7 && 0 < a12 + 43) && 8 <= a21) && a24 == 1)) || ((a24 == 1 && 10 <= a21) && 95380 < a12)) || (((a15 <= 7 && 0 < a12 + 43) && a24 == 1) && a21 <= 6)) || (((a24 == 1 && a15 <= 8) && 286349 <= a12) && a21 <= 6)) || ((((a21 <= 7 && 7 <= a21) && a12 + 49 <= 0) && a24 == 1) && a15 <= 8)) || ((a12 + 49 <= 0 && a21 <= 6) && a15 <= 6)) || (a24 == 1 && a15 <= 6)) || ((a12 <= 11 && a24 == 1) && 10 <= a21)) || ((((8 <= a21 && a24 == 1) && a12 <= 72) && 18 < a12) && a21 <= 8) - InvariantResult [Line: 30]: Loop Invariant Derived loop invariant: ((((((((((((((((((((a15 <= 7 && 8 <= a21) && a24 == 1) && a21 <= 8) || (((a12 <= 95434 && a24 == 1) && 9 <= a15) && 95380 < a12)) || ((((82 <= a12 && 8 <= a21) && a24 == 1) && a12 <= 73282) && a21 <= 8)) || (((a15 <= 7 && a12 + 49 <= 0) && a24 == 1) && a21 <= 8)) || (((((8 <= a21 && a24 == 1) && a15 <= 8) && a21 <= 9) && 18 < a12) && a12 <= 76)) || ((((0 < a12 + 43 && a12 <= 11) && 8 <= a21) && a24 == 1) && a15 <= 8)) || (((82 <= a12 && 7 <= a21) && a24 == 1) && 9 <= a15)) || ((((8 <= a21 && a24 == 1) && 9 <= a15) && a12 + 526767 <= 0) && a21 <= 8)) || ((((0 < a12 + 43 && a12 <= 10) && 8 <= a21) && a24 == 1) && a21 <= 8)) || ((((8 <= a15 && 0 < a12 + 43) && a12 <= 10) && a24 == 1) && a15 <= 8)) || (((a15 <= 7 && 0 < a12 + 43) && 8 <= a21) && a24 == 1)) || ((a24 == 1 && 10 <= a21) && 95380 < a12)) || (((a15 <= 7 && 0 < a12 + 43) && a24 == 1) && a21 <= 6)) || (((a24 == 1 && a15 <= 8) && 286349 <= a12) && a21 <= 6)) || ((((a21 <= 7 && 7 <= a21) && a12 + 49 <= 0) && a24 == 1) && a15 <= 8)) || ((a12 + 49 <= 0 && a21 <= 6) && a15 <= 6)) || (a24 == 1 && a15 <= 6)) || ((a12 <= 11 && a24 == 1) && 10 <= a21)) || ((((8 <= a21 && a24 == 1) && a12 <= 72) && 18 < a12) && a21 <= 8) - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 245 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 86.1s, OverallIterations: 27, TraceHistogramMax: 19, AutomataDifference: 27.7s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 2.2s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 3496 SDtfs, 3633 SDslu, 291 SDs, 0 SdLazy, 22641 SolverSat, 1292 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 19.2s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 11106 GetRequests, 11019 SyntacticMatches, 0 SemanticMatches, 87 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 79 ImplicationChecksByTransitivity, 0.6s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=5878occurred in iteration=22, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 1.5s AutomataMinimizationTime, 27 MinimizatonAttempts, 5162 StatesRemovedByMinimization, 15 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 3 LocationsWithAnnotation, 3 PreInvPairs, 89 NumberOfFragments, 557 HoareAnnotationTreeSize, 3 FomulaSimplifications, 3698 FormulaSimplificationTreeSizeReduction, 0.2s HoareSimplificationTime, 3 FomulaSimplificationsInter, 2806 FormulaSimplificationTreeSizeReductionInter, 1.9s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 1.1s SsaConstructionTime, 4.6s SatisfiabilityAnalysisTime, 24.6s InterpolantComputationTime, 33804 NumberOfCodeBlocks, 33804 NumberOfCodeBlocksAsserted, 40 NumberOfCheckSat, 33764 ConstructedInterpolants, 0 QuantifiedInterpolants, 93901318 SizeOfPredicates, 1 NumberOfNonLiveVariables, 13877 ConjunctsInSsa, 41 ConjunctsInUnsatCore, 40 InterpolantComputations, 25 PerfectInterpolantSequences, 138052/141648 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...