./Ultimate.py --spec ../sv-benchmarks/c/properties/termination.prp --file ../sv-benchmarks/c/locks/test_locks_5.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 5fbdf5bf Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerTermination.xml -i ../sv-benchmarks/c/locks/test_locks_5.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(F end) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash d28fd50bd3f7e49bee026aec860ad9015a4fdfba ...................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Using bit-precise analysis No suitable file found in config dir /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config using search string *Termination*32bit*_Bitvector*.epf No suitable settings file found using Termination*32bit*_Bitvector ERROR: UNSUPPORTED PROPERTY Writing output log to file Ultimate.log Result: ERROR: ExceptionOrErrorResult: ClassCastException: class de.uni_freiburg.informatik.ultimate.util.statistics.StatisticsAggregator cannot be cast to class de.uni_freiburg.informatik.ultimate.util.statistics.StatisticsData (de.uni_freiburg.informatik.ultimate.util.statistics.StatisticsAggregator and de.uni_freiburg.informatik.ultimate.util.statistics.StatisticsData are in unnamed module of loader org.eclipse.osgi.internal.loader.EquinoxClassLoader @560348e6) --- Real Ultimate output --- This is Ultimate 0.2.1-wip.dd.seqcomp-5fbdf5b [2021-08-31 02:02:54,026 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-08-31 02:02:54,028 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-08-31 02:02:54,061 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-08-31 02:02:54,061 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-08-31 02:02:54,064 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-08-31 02:02:54,065 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-08-31 02:02:54,070 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-08-31 02:02:54,072 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-08-31 02:02:54,080 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-08-31 02:02:54,081 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-08-31 02:02:54,084 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-08-31 02:02:54,084 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-08-31 02:02:54,086 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-08-31 02:02:54,088 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-08-31 02:02:54,090 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-08-31 02:02:54,091 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-08-31 02:02:54,092 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-08-31 02:02:54,094 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-08-31 02:02:54,098 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-08-31 02:02:54,099 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-08-31 02:02:54,100 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-08-31 02:02:54,101 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-08-31 02:02:54,102 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-08-31 02:02:54,107 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-08-31 02:02:54,108 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-08-31 02:02:54,108 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-08-31 02:02:54,109 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-08-31 02:02:54,110 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-08-31 02:02:54,110 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-08-31 02:02:54,110 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-08-31 02:02:54,111 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-08-31 02:02:54,112 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-08-31 02:02:54,113 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-08-31 02:02:54,114 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-08-31 02:02:54,114 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-08-31 02:02:54,114 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-08-31 02:02:54,115 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-08-31 02:02:54,115 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-08-31 02:02:54,116 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-08-31 02:02:54,117 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-08-31 02:02:54,119 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-32bit-Automizer_Default.epf [2021-08-31 02:02:54,148 INFO L113 SettingsManager]: Loading preferences was successful [2021-08-31 02:02:54,148 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-08-31 02:02:54,149 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-08-31 02:02:54,149 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-08-31 02:02:54,151 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-08-31 02:02:54,151 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-08-31 02:02:54,151 INFO L138 SettingsManager]: * Use SBE=true [2021-08-31 02:02:54,151 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2021-08-31 02:02:54,151 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2021-08-31 02:02:54,152 INFO L138 SettingsManager]: * Use old map elimination=false [2021-08-31 02:02:54,152 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2021-08-31 02:02:54,152 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2021-08-31 02:02:54,152 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2021-08-31 02:02:54,153 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-08-31 02:02:54,153 INFO L138 SettingsManager]: * sizeof long=4 [2021-08-31 02:02:54,153 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-08-31 02:02:54,153 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-08-31 02:02:54,153 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-08-31 02:02:54,153 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-08-31 02:02:54,154 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2021-08-31 02:02:54,154 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2021-08-31 02:02:54,154 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2021-08-31 02:02:54,154 INFO L138 SettingsManager]: * sizeof long double=12 [2021-08-31 02:02:54,154 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-08-31 02:02:54,154 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2021-08-31 02:02:54,154 INFO L138 SettingsManager]: * Use constant arrays=true [2021-08-31 02:02:54,154 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2021-08-31 02:02:54,155 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-08-31 02:02:54,155 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-08-31 02:02:54,155 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-08-31 02:02:54,155 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-08-31 02:02:54,155 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-08-31 02:02:54,156 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2021-08-31 02:02:54,156 INFO L138 SettingsManager]: * TransformationType=MODULO_NEIGHBOR 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/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> d28fd50bd3f7e49bee026aec860ad9015a4fdfba [2021-08-31 02:02:54,421 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-08-31 02:02:54,449 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-08-31 02:02:54,451 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-08-31 02:02:54,452 INFO L271 PluginConnector]: Initializing CDTParser... [2021-08-31 02:02:54,452 INFO L275 PluginConnector]: CDTParser initialized [2021-08-31 02:02:54,454 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/locks/test_locks_5.c [2021-08-31 02:02:54,505 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ffa68faf7/cce83eaeff064c41abeb58c3699bbadd/FLAG4feb653a3 [2021-08-31 02:02:54,907 INFO L306 CDTParser]: Found 1 translation units. [2021-08-31 02:02:54,907 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/locks/test_locks_5.c [2021-08-31 02:02:54,912 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ffa68faf7/cce83eaeff064c41abeb58c3699bbadd/FLAG4feb653a3 [2021-08-31 02:02:54,929 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ffa68faf7/cce83eaeff064c41abeb58c3699bbadd [2021-08-31 02:02:54,931 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-08-31 02:02:54,933 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-08-31 02:02:54,935 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-08-31 02:02:54,935 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-08-31 02:02:54,938 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-08-31 02:02:54,939 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 31.08 02:02:54" (1/1) ... [2021-08-31 02:02:54,939 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@34a0832d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 02:02:54, skipping insertion in model container [2021-08-31 02:02:54,939 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 31.08 02:02:54" (1/1) ... [2021-08-31 02:02:54,944 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-08-31 02:02:54,960 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-08-31 02:02:55,097 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/locks/test_locks_5.c[2207,2220] [2021-08-31 02:02:55,098 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-08-31 02:02:55,105 INFO L203 MainTranslator]: Completed pre-run [2021-08-31 02:02:55,165 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/locks/test_locks_5.c[2207,2220] [2021-08-31 02:02:55,166 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-08-31 02:02:55,175 INFO L208 MainTranslator]: Completed translation [2021-08-31 02:02:55,175 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 02:02:55 WrapperNode [2021-08-31 02:02:55,175 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-08-31 02:02:55,176 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-08-31 02:02:55,176 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-08-31 02:02:55,176 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-08-31 02:02:55,181 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 02:02:55" (1/1) ... [2021-08-31 02:02:55,186 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 02:02:55" (1/1) ... [2021-08-31 02:02:55,203 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-08-31 02:02:55,203 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-08-31 02:02:55,204 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-08-31 02:02:55,204 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-08-31 02:02:55,209 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 02:02:55" (1/1) ... [2021-08-31 02:02:55,209 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 02:02:55" (1/1) ... [2021-08-31 02:02:55,217 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 02:02:55" (1/1) ... [2021-08-31 02:02:55,217 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 02:02:55" (1/1) ... [2021-08-31 02:02:55,225 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 02:02:55" (1/1) ... [2021-08-31 02:02:55,228 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 02:02:55" (1/1) ... [2021-08-31 02:02:55,229 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 02:02:55" (1/1) ... [2021-08-31 02:02:55,230 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-08-31 02:02:55,231 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-08-31 02:02:55,231 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-08-31 02:02:55,231 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-08-31 02:02:55,231 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 02:02:55" (1/1) ... [2021-08-31 02:02:55,236 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-31 02:02:55,244 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-31 02:02:55,311 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-08-31 02:02:55,330 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2021-08-31 02:02:55,344 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-08-31 02:02:55,344 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-08-31 02:02:55,344 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-08-31 02:02:55,344 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-08-31 02:02:55,492 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-08-31 02:02:55,492 INFO L299 CfgBuilder]: Removed 5 assume(true) statements. [2021-08-31 02:02:55,493 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.08 02:02:55 BoogieIcfgContainer [2021-08-31 02:02:55,493 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-08-31 02:02:55,494 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2021-08-31 02:02:55,494 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2021-08-31 02:02:55,497 INFO L275 PluginConnector]: BuchiAutomizer initialized [2021-08-31 02:02:55,498 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-08-31 02:02:55,498 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 31.08 02:02:54" (1/3) ... [2021-08-31 02:02:55,499 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@1162d142 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 31.08 02:02:55, skipping insertion in model container [2021-08-31 02:02:55,499 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-08-31 02:02:55,499 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 02:02:55" (2/3) ... [2021-08-31 02:02:55,500 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@1162d142 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 31.08 02:02:55, skipping insertion in model container [2021-08-31 02:02:55,500 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-08-31 02:02:55,500 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.08 02:02:55" (3/3) ... [2021-08-31 02:02:55,501 INFO L389 chiAutomizerObserver]: Analyzing ICFG test_locks_5.c [2021-08-31 02:02:55,551 INFO L359 BuchiCegarLoop]: Interprodecural is true [2021-08-31 02:02:55,551 INFO L360 BuchiCegarLoop]: Hoare is false [2021-08-31 02:02:55,552 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2021-08-31 02:02:55,552 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2021-08-31 02:02:55,552 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-08-31 02:02:55,552 INFO L364 BuchiCegarLoop]: Difference is false [2021-08-31 02:02:55,553 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-08-31 02:02:55,553 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2021-08-31 02:02:55,565 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 24 states, 23 states have (on average 1.7826086956521738) internal successors, (41), 23 states have internal predecessors, (41), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-31 02:02:55,579 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 17 [2021-08-31 02:02:55,579 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-08-31 02:02:55,579 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-08-31 02:02:55,583 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1] [2021-08-31 02:02:55,583 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-31 02:02:55,583 INFO L425 BuchiCegarLoop]: ======== Iteration 1============ [2021-08-31 02:02:55,584 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 24 states, 23 states have (on average 1.7826086956521738) internal successors, (41), 23 states have internal predecessors, (41), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-31 02:02:55,587 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 17 [2021-08-31 02:02:55,587 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-08-31 02:02:55,587 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-08-31 02:02:55,588 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1] [2021-08-31 02:02:55,588 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-31 02:02:55,609 INFO L791 eck$LassoCheckResult]: Stem: 6#ULTIMATE.startENTRYtrue #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string4.base, #t~string4.offset := #Ultimate.allocOnStack(2);call write~init~int(48, #t~string4.base, #t~string4.offset, 1);call write~init~int(0, #t~string4.base, 1 + #t~string4.offset, 1);call #t~string5.base, #t~string5.offset := #Ultimate.allocOnStack(15);call #t~string6.base, #t~string6.offset := #Ultimate.allocOnStack(12); 14#L-1true havoc main_#res;havoc main_#t~nondet7, main_#t~nondet8, main_#t~nondet9, main_#t~nondet10, main_#t~nondet11, main_#t~nondet12, main_~p1~0, main_~lk1~0, main_~p2~0, main_~lk2~0, main_~p3~0, main_~lk3~0, main_~p4~0, main_~lk4~0, main_~p5~0, main_~lk5~0, main_~cond~0;main_~p1~0 := main_#t~nondet7;havoc main_#t~nondet7;havoc main_~lk1~0;main_~p2~0 := main_#t~nondet8;havoc main_#t~nondet8;havoc main_~lk2~0;main_~p3~0 := main_#t~nondet9;havoc main_#t~nondet9;havoc main_~lk3~0;main_~p4~0 := main_#t~nondet10;havoc main_#t~nondet10;havoc main_~lk4~0;main_~p5~0 := main_#t~nondet11;havoc main_#t~nondet11;havoc main_~lk5~0;havoc main_~cond~0; 8#L85-1true [2021-08-31 02:02:55,609 INFO L793 eck$LassoCheckResult]: Loop: 8#L85-1true assume !false;main_~cond~0 := main_#t~nondet12;havoc main_#t~nondet12; 23#L28true assume !(0 == main_~cond~0);main_~lk1~0 := 0;main_~lk2~0 := 0;main_~lk3~0 := 0;main_~lk4~0 := 0;main_~lk5~0 := 0; 9#L43true assume 0 != main_~p1~0;main_~lk1~0 := 1; 10#L43-2true assume 0 != main_~p2~0;main_~lk2~0 := 1; 19#L47-1true assume !(0 != main_~p3~0); 17#L51-1true assume 0 != main_~p4~0;main_~lk4~0 := 1; 18#L55-1true assume 0 != main_~p5~0;main_~lk5~0 := 1; 21#L59-1true assume !(0 != main_~p1~0); 11#L65-1true assume !(0 != main_~p2~0); 20#L70-1true assume !(0 != main_~p3~0); 22#L75-1true assume !(0 != main_~p4~0); 24#L80-1true assume !(0 != main_~p5~0); 8#L85-1true [2021-08-31 02:02:55,615 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-31 02:02:55,615 INFO L82 PathProgramCache]: Analyzing trace with hash 963, now seen corresponding path program 1 times [2021-08-31 02:02:55,621 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-31 02:02:55,623 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2090375688] [2021-08-31 02:02:55,624 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-31 02:02:55,625 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-31 02:02:55,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-31 02:02:55,703 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-08-31 02:02:55,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-31 02:02:55,746 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-08-31 02:02:55,752 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-31 02:02:55,753 INFO L82 PathProgramCache]: Analyzing trace with hash -2089480461, now seen corresponding path program 1 times [2021-08-31 02:02:55,753 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-31 02:02:55,754 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1636742887] [2021-08-31 02:02:55,754 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-31 02:02:55,754 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-31 02:02:55,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-31 02:02:55,856 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-31 02:02:55,857 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-31 02:02:55,857 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1636742887] [2021-08-31 02:02:55,858 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1636742887] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-31 02:02:55,858 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-31 02:02:55,858 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-08-31 02:02:55,859 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [630245226] [2021-08-31 02:02:55,862 INFO L808 eck$LassoCheckResult]: loop already infeasible [2021-08-31 02:02:55,863 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-31 02:02:55,886 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-08-31 02:02:55,887 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-08-31 02:02:55,888 INFO L87 Difference]: Start difference. First operand has 24 states, 23 states have (on average 1.7826086956521738) internal successors, (41), 23 states have internal predecessors, (41), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 3 states, 3 states have (on average 4.0) internal successors, (12), 3 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-31 02:02:56,055 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-31 02:02:56,055 INFO L93 Difference]: Finished difference Result 45 states and 70 transitions. [2021-08-31 02:02:56,057 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-08-31 02:02:56,060 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 45 states and 70 transitions. [2021-08-31 02:02:56,062 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 33 [2021-08-31 02:02:56,064 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 45 states to 35 states and 53 transitions. [2021-08-31 02:02:56,065 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 35 [2021-08-31 02:02:56,065 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 35 [2021-08-31 02:02:56,065 INFO L73 IsDeterministic]: Start isDeterministic. Operand 35 states and 53 transitions. [2021-08-31 02:02:56,066 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-08-31 02:02:56,066 INFO L681 BuchiCegarLoop]: Abstraction has 35 states and 53 transitions. [2021-08-31 02:02:56,076 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35 states and 53 transitions. [2021-08-31 02:02:56,082 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35 to 35. [2021-08-31 02:02:56,083 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 35 states, 35 states have (on average 1.5142857142857142) internal successors, (53), 34 states have internal predecessors, (53), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-31 02:02:56,084 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35 states to 35 states and 53 transitions. [2021-08-31 02:02:56,084 INFO L704 BuchiCegarLoop]: Abstraction has 35 states and 53 transitions. [2021-08-31 02:02:56,084 INFO L587 BuchiCegarLoop]: Abstraction has 35 states and 53 transitions. [2021-08-31 02:02:56,084 INFO L425 BuchiCegarLoop]: ======== Iteration 2============ [2021-08-31 02:02:56,085 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 35 states and 53 transitions. [2021-08-31 02:02:56,085 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 33 [2021-08-31 02:02:56,085 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-08-31 02:02:56,086 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-08-31 02:02:56,086 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1] [2021-08-31 02:02:56,086 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-31 02:02:56,086 INFO L791 eck$LassoCheckResult]: Stem: 80#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string4.base, #t~string4.offset := #Ultimate.allocOnStack(2);call write~init~int(48, #t~string4.base, #t~string4.offset, 1);call write~init~int(0, #t~string4.base, 1 + #t~string4.offset, 1);call #t~string5.base, #t~string5.offset := #Ultimate.allocOnStack(15);call #t~string6.base, #t~string6.offset := #Ultimate.allocOnStack(12); 81#L-1 havoc main_#res;havoc main_#t~nondet7, main_#t~nondet8, main_#t~nondet9, main_#t~nondet10, main_#t~nondet11, main_#t~nondet12, main_~p1~0, main_~lk1~0, main_~p2~0, main_~lk2~0, main_~p3~0, main_~lk3~0, main_~p4~0, main_~lk4~0, main_~p5~0, main_~lk5~0, main_~cond~0;main_~p1~0 := main_#t~nondet7;havoc main_#t~nondet7;havoc main_~lk1~0;main_~p2~0 := main_#t~nondet8;havoc main_#t~nondet8;havoc main_~lk2~0;main_~p3~0 := main_#t~nondet9;havoc main_#t~nondet9;havoc main_~lk3~0;main_~p4~0 := main_#t~nondet10;havoc main_#t~nondet10;havoc main_~lk4~0;main_~p5~0 := main_#t~nondet11;havoc main_#t~nondet11;havoc main_~lk5~0;havoc main_~cond~0; 79#L85-1 [2021-08-31 02:02:56,086 INFO L793 eck$LassoCheckResult]: Loop: 79#L85-1 assume !false;main_~cond~0 := main_#t~nondet12;havoc main_#t~nondet12; 84#L28 assume !(0 == main_~cond~0);main_~lk1~0 := 0;main_~lk2~0 := 0;main_~lk3~0 := 0;main_~lk4~0 := 0;main_~lk5~0 := 0; 100#L43 assume !(0 != main_~p1~0); 87#L43-2 assume 0 != main_~p2~0;main_~lk2~0 := 1; 88#L47-1 assume !(0 != main_~p3~0); 93#L51-1 assume 0 != main_~p4~0;main_~lk4~0 := 1; 94#L55-1 assume 0 != main_~p5~0;main_~lk5~0 := 1; 95#L59-1 assume !(0 != main_~p1~0); 101#L65-1 assume !(0 != main_~p2~0); 111#L70-1 assume !(0 != main_~p3~0); 98#L75-1 assume !(0 != main_~p4~0); 92#L80-1 assume !(0 != main_~p5~0); 79#L85-1 [2021-08-31 02:02:56,087 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-31 02:02:56,087 INFO L82 PathProgramCache]: Analyzing trace with hash 963, now seen corresponding path program 2 times [2021-08-31 02:02:56,087 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-31 02:02:56,087 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [648439285] [2021-08-31 02:02:56,087 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-31 02:02:56,087 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-31 02:02:56,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-31 02:02:56,094 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-08-31 02:02:56,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-31 02:02:56,109 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-08-31 02:02:56,110 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-31 02:02:56,110 INFO L82 PathProgramCache]: Analyzing trace with hash 1812459825, now seen corresponding path program 1 times [2021-08-31 02:02:56,110 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-31 02:02:56,110 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [247454447] [2021-08-31 02:02:56,110 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-31 02:02:56,111 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-31 02:02:56,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-31 02:02:56,124 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-31 02:02:56,124 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-31 02:02:56,131 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [247454447] [2021-08-31 02:02:56,132 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [247454447] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-31 02:02:56,133 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-31 02:02:56,133 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-08-31 02:02:56,133 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1015082537] [2021-08-31 02:02:56,133 INFO L808 eck$LassoCheckResult]: loop already infeasible [2021-08-31 02:02:56,134 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-31 02:02:56,134 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-08-31 02:02:56,134 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-08-31 02:02:56,135 INFO L87 Difference]: Start difference. First operand 35 states and 53 transitions. cyclomatic complexity: 20 Second operand has 3 states, 3 states have (on average 4.0) internal successors, (12), 3 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-31 02:02:56,230 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-31 02:02:56,230 INFO L93 Difference]: Finished difference Result 66 states and 98 transitions. [2021-08-31 02:02:56,230 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-08-31 02:02:56,231 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 66 states and 98 transitions. [2021-08-31 02:02:56,232 INFO L131 ngComponentsAnalysis]: Automaton has 4 accepting balls. 64 [2021-08-31 02:02:56,237 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 66 states to 66 states and 98 transitions. [2021-08-31 02:02:56,237 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 66 [2021-08-31 02:02:56,238 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 66 [2021-08-31 02:02:56,238 INFO L73 IsDeterministic]: Start isDeterministic. Operand 66 states and 98 transitions. [2021-08-31 02:02:56,238 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-08-31 02:02:56,238 INFO L681 BuchiCegarLoop]: Abstraction has 66 states and 98 transitions. [2021-08-31 02:02:56,238 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 66 states and 98 transitions. [2021-08-31 02:02:56,243 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 66 to 66. [2021-08-31 02:02:56,244 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 66 states, 66 states have (on average 1.4848484848484849) internal successors, (98), 65 states have internal predecessors, (98), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-31 02:02:56,245 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 66 states to 66 states and 98 transitions. [2021-08-31 02:02:56,245 INFO L704 BuchiCegarLoop]: Abstraction has 66 states and 98 transitions. [2021-08-31 02:02:56,245 INFO L587 BuchiCegarLoop]: Abstraction has 66 states and 98 transitions. [2021-08-31 02:02:56,245 INFO L425 BuchiCegarLoop]: ======== Iteration 3============ [2021-08-31 02:02:56,245 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 66 states and 98 transitions. [2021-08-31 02:02:56,246 INFO L131 ngComponentsAnalysis]: Automaton has 4 accepting balls. 64 [2021-08-31 02:02:56,246 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-08-31 02:02:56,246 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-08-31 02:02:56,246 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1] [2021-08-31 02:02:56,246 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-31 02:02:56,246 INFO L791 eck$LassoCheckResult]: Stem: 189#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string4.base, #t~string4.offset := #Ultimate.allocOnStack(2);call write~init~int(48, #t~string4.base, #t~string4.offset, 1);call write~init~int(0, #t~string4.base, 1 + #t~string4.offset, 1);call #t~string5.base, #t~string5.offset := #Ultimate.allocOnStack(15);call #t~string6.base, #t~string6.offset := #Ultimate.allocOnStack(12); 190#L-1 havoc main_#res;havoc main_#t~nondet7, main_#t~nondet8, main_#t~nondet9, main_#t~nondet10, main_#t~nondet11, main_#t~nondet12, main_~p1~0, main_~lk1~0, main_~p2~0, main_~lk2~0, main_~p3~0, main_~lk3~0, main_~p4~0, main_~lk4~0, main_~p5~0, main_~lk5~0, main_~cond~0;main_~p1~0 := main_#t~nondet7;havoc main_#t~nondet7;havoc main_~lk1~0;main_~p2~0 := main_#t~nondet8;havoc main_#t~nondet8;havoc main_~lk2~0;main_~p3~0 := main_#t~nondet9;havoc main_#t~nondet9;havoc main_~lk3~0;main_~p4~0 := main_#t~nondet10;havoc main_#t~nondet10;havoc main_~lk4~0;main_~p5~0 := main_#t~nondet11;havoc main_#t~nondet11;havoc main_~lk5~0;havoc main_~cond~0; 200#L85-1 [2021-08-31 02:02:56,247 INFO L793 eck$LassoCheckResult]: Loop: 200#L85-1 assume !false;main_~cond~0 := main_#t~nondet12;havoc main_#t~nondet12; 224#L28 assume !(0 == main_~cond~0);main_~lk1~0 := 0;main_~lk2~0 := 0;main_~lk3~0 := 0;main_~lk4~0 := 0;main_~lk5~0 := 0; 222#L43 assume !(0 != main_~p1~0); 219#L43-2 assume !(0 != main_~p2~0); 217#L47-1 assume !(0 != main_~p3~0); 215#L51-1 assume 0 != main_~p4~0;main_~lk4~0 := 1; 214#L55-1 assume 0 != main_~p5~0;main_~lk5~0 := 1; 212#L59-1 assume !(0 != main_~p1~0); 213#L65-1 assume !(0 != main_~p2~0); 235#L70-1 assume !(0 != main_~p3~0); 231#L75-1 assume !(0 != main_~p4~0); 228#L80-1 assume !(0 != main_~p5~0); 200#L85-1 [2021-08-31 02:02:56,247 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-31 02:02:56,247 INFO L82 PathProgramCache]: Analyzing trace with hash 963, now seen corresponding path program 3 times [2021-08-31 02:02:56,247 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-31 02:02:56,247 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [825259060] [2021-08-31 02:02:56,248 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-31 02:02:56,248 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-31 02:02:56,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-31 02:02:56,254 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-08-31 02:02:56,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-31 02:02:56,266 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-08-31 02:02:56,266 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-31 02:02:56,267 INFO L82 PathProgramCache]: Analyzing trace with hash -1802449101, now seen corresponding path program 1 times [2021-08-31 02:02:56,267 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-31 02:02:56,267 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [200422296] [2021-08-31 02:02:56,267 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-31 02:02:56,267 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-31 02:02:56,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-31 02:02:56,291 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-31 02:02:56,291 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-31 02:02:56,291 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [200422296] [2021-08-31 02:02:56,291 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [200422296] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-31 02:02:56,292 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-31 02:02:56,292 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-08-31 02:02:56,292 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1224518263] [2021-08-31 02:02:56,292 INFO L808 eck$LassoCheckResult]: loop already infeasible [2021-08-31 02:02:56,292 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-31 02:02:56,292 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-08-31 02:02:56,293 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-08-31 02:02:56,293 INFO L87 Difference]: Start difference. First operand 66 states and 98 transitions. cyclomatic complexity: 36 Second operand has 3 states, 3 states have (on average 4.0) internal successors, (12), 3 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-31 02:02:56,363 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-31 02:02:56,363 INFO L93 Difference]: Finished difference Result 126 states and 182 transitions. [2021-08-31 02:02:56,363 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-08-31 02:02:56,365 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 126 states and 182 transitions. [2021-08-31 02:02:56,370 INFO L131 ngComponentsAnalysis]: Automaton has 8 accepting balls. 124 [2021-08-31 02:02:56,372 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 126 states to 126 states and 182 transitions. [2021-08-31 02:02:56,372 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 126 [2021-08-31 02:02:56,372 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 126 [2021-08-31 02:02:56,372 INFO L73 IsDeterministic]: Start isDeterministic. Operand 126 states and 182 transitions. [2021-08-31 02:02:56,373 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-08-31 02:02:56,373 INFO L681 BuchiCegarLoop]: Abstraction has 126 states and 182 transitions. [2021-08-31 02:02:56,373 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 126 states and 182 transitions. [2021-08-31 02:02:56,378 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 126 to 126. [2021-08-31 02:02:56,379 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 126 states, 126 states have (on average 1.4444444444444444) internal successors, (182), 125 states have internal predecessors, (182), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-31 02:02:56,380 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 126 states to 126 states and 182 transitions. [2021-08-31 02:02:56,380 INFO L704 BuchiCegarLoop]: Abstraction has 126 states and 182 transitions. [2021-08-31 02:02:56,380 INFO L587 BuchiCegarLoop]: Abstraction has 126 states and 182 transitions. [2021-08-31 02:02:56,380 INFO L425 BuchiCegarLoop]: ======== Iteration 4============ [2021-08-31 02:02:56,380 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 126 states and 182 transitions. [2021-08-31 02:02:56,381 INFO L131 ngComponentsAnalysis]: Automaton has 8 accepting balls. 124 [2021-08-31 02:02:56,381 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-08-31 02:02:56,381 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-08-31 02:02:56,381 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1] [2021-08-31 02:02:56,381 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-31 02:02:56,381 INFO L791 eck$LassoCheckResult]: Stem: 385#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string4.base, #t~string4.offset := #Ultimate.allocOnStack(2);call write~init~int(48, #t~string4.base, #t~string4.offset, 1);call write~init~int(0, #t~string4.base, 1 + #t~string4.offset, 1);call #t~string5.base, #t~string5.offset := #Ultimate.allocOnStack(15);call #t~string6.base, #t~string6.offset := #Ultimate.allocOnStack(12); 386#L-1 havoc main_#res;havoc main_#t~nondet7, main_#t~nondet8, main_#t~nondet9, main_#t~nondet10, main_#t~nondet11, main_#t~nondet12, main_~p1~0, main_~lk1~0, main_~p2~0, main_~lk2~0, main_~p3~0, main_~lk3~0, main_~p4~0, main_~lk4~0, main_~p5~0, main_~lk5~0, main_~cond~0;main_~p1~0 := main_#t~nondet7;havoc main_#t~nondet7;havoc main_~lk1~0;main_~p2~0 := main_#t~nondet8;havoc main_#t~nondet8;havoc main_~lk2~0;main_~p3~0 := main_#t~nondet9;havoc main_#t~nondet9;havoc main_~lk3~0;main_~p4~0 := main_#t~nondet10;havoc main_#t~nondet10;havoc main_~lk4~0;main_~p5~0 := main_#t~nondet11;havoc main_#t~nondet11;havoc main_~lk5~0;havoc main_~cond~0; 400#L85-1 [2021-08-31 02:02:56,381 INFO L793 eck$LassoCheckResult]: Loop: 400#L85-1 assume !false;main_~cond~0 := main_#t~nondet12;havoc main_#t~nondet12; 435#L28 assume !(0 == main_~cond~0);main_~lk1~0 := 0;main_~lk2~0 := 0;main_~lk3~0 := 0;main_~lk4~0 := 0;main_~lk5~0 := 0; 431#L43 assume !(0 != main_~p1~0); 428#L43-2 assume !(0 != main_~p2~0); 426#L47-1 assume !(0 != main_~p3~0); 425#L51-1 assume !(0 != main_~p4~0); 421#L55-1 assume 0 != main_~p5~0;main_~lk5~0 := 1; 422#L59-1 assume !(0 != main_~p1~0); 447#L65-1 assume !(0 != main_~p2~0); 445#L70-1 assume !(0 != main_~p3~0); 442#L75-1 assume !(0 != main_~p4~0); 439#L80-1 assume !(0 != main_~p5~0); 400#L85-1 [2021-08-31 02:02:56,382 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-31 02:02:56,382 INFO L82 PathProgramCache]: Analyzing trace with hash 963, now seen corresponding path program 4 times [2021-08-31 02:02:56,382 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-31 02:02:56,382 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [319130111] [2021-08-31 02:02:56,382 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-31 02:02:56,382 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-31 02:02:56,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-31 02:02:56,389 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-08-31 02:02:56,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-31 02:02:56,395 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-08-31 02:02:56,396 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-31 02:02:56,396 INFO L82 PathProgramCache]: Analyzing trace with hash -27441739, now seen corresponding path program 1 times [2021-08-31 02:02:56,396 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-31 02:02:56,396 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [641453027] [2021-08-31 02:02:56,396 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-31 02:02:56,396 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-31 02:02:56,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-31 02:02:56,406 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-31 02:02:56,407 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-31 02:02:56,407 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [641453027] [2021-08-31 02:02:56,407 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [641453027] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-31 02:02:56,407 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-31 02:02:56,407 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-08-31 02:02:56,407 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [672861206] [2021-08-31 02:02:56,407 INFO L808 eck$LassoCheckResult]: loop already infeasible [2021-08-31 02:02:56,407 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-31 02:02:56,408 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-08-31 02:02:56,408 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-08-31 02:02:56,408 INFO L87 Difference]: Start difference. First operand 126 states and 182 transitions. cyclomatic complexity: 64 Second operand has 3 states, 2 states have (on average 6.0) internal successors, (12), 3 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-31 02:02:56,452 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-31 02:02:56,453 INFO L93 Difference]: Finished difference Result 242 states and 338 transitions. [2021-08-31 02:02:56,453 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-08-31 02:02:56,454 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 242 states and 338 transitions. [2021-08-31 02:02:56,456 INFO L131 ngComponentsAnalysis]: Automaton has 16 accepting balls. 240 [2021-08-31 02:02:56,462 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 242 states to 242 states and 338 transitions. [2021-08-31 02:02:56,462 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 242 [2021-08-31 02:02:56,464 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 242 [2021-08-31 02:02:56,464 INFO L73 IsDeterministic]: Start isDeterministic. Operand 242 states and 338 transitions. [2021-08-31 02:02:56,469 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-08-31 02:02:56,469 INFO L681 BuchiCegarLoop]: Abstraction has 242 states and 338 transitions. [2021-08-31 02:02:56,469 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 242 states and 338 transitions. [2021-08-31 02:02:56,479 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 242 to 242. [2021-08-31 02:02:56,485 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 242 states, 242 states have (on average 1.396694214876033) internal successors, (338), 241 states have internal predecessors, (338), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-31 02:02:56,489 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 242 states to 242 states and 338 transitions. [2021-08-31 02:02:56,489 INFO L704 BuchiCegarLoop]: Abstraction has 242 states and 338 transitions. [2021-08-31 02:02:56,489 INFO L587 BuchiCegarLoop]: Abstraction has 242 states and 338 transitions. [2021-08-31 02:02:56,489 INFO L425 BuchiCegarLoop]: ======== Iteration 5============ [2021-08-31 02:02:56,489 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 242 states and 338 transitions. [2021-08-31 02:02:56,491 INFO L131 ngComponentsAnalysis]: Automaton has 16 accepting balls. 240 [2021-08-31 02:02:56,496 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-08-31 02:02:56,496 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-08-31 02:02:56,496 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1] [2021-08-31 02:02:56,496 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-31 02:02:56,497 INFO L791 eck$LassoCheckResult]: Stem: 759#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string4.base, #t~string4.offset := #Ultimate.allocOnStack(2);call write~init~int(48, #t~string4.base, #t~string4.offset, 1);call write~init~int(0, #t~string4.base, 1 + #t~string4.offset, 1);call #t~string5.base, #t~string5.offset := #Ultimate.allocOnStack(15);call #t~string6.base, #t~string6.offset := #Ultimate.allocOnStack(12); 760#L-1 havoc main_#res;havoc main_#t~nondet7, main_#t~nondet8, main_#t~nondet9, main_#t~nondet10, main_#t~nondet11, main_#t~nondet12, main_~p1~0, main_~lk1~0, main_~p2~0, main_~lk2~0, main_~p3~0, main_~lk3~0, main_~p4~0, main_~lk4~0, main_~p5~0, main_~lk5~0, main_~cond~0;main_~p1~0 := main_#t~nondet7;havoc main_#t~nondet7;havoc main_~lk1~0;main_~p2~0 := main_#t~nondet8;havoc main_#t~nondet8;havoc main_~lk2~0;main_~p3~0 := main_#t~nondet9;havoc main_#t~nondet9;havoc main_~lk3~0;main_~p4~0 := main_#t~nondet10;havoc main_#t~nondet10;havoc main_~lk4~0;main_~p5~0 := main_#t~nondet11;havoc main_#t~nondet11;havoc main_~lk5~0;havoc main_~cond~0; 773#L85-1 [2021-08-31 02:02:56,497 INFO L793 eck$LassoCheckResult]: Loop: 773#L85-1 assume !false;main_~cond~0 := main_#t~nondet12;havoc main_#t~nondet12; 836#L28 assume !(0 == main_~cond~0);main_~lk1~0 := 0;main_~lk2~0 := 0;main_~lk3~0 := 0;main_~lk4~0 := 0;main_~lk5~0 := 0; 833#L43 assume !(0 != main_~p1~0); 829#L43-2 assume !(0 != main_~p2~0); 826#L47-1 assume !(0 != main_~p3~0); 820#L51-1 assume !(0 != main_~p4~0); 795#L55-1 assume !(0 != main_~p5~0); 796#L59-1 assume !(0 != main_~p1~0); 853#L65-1 assume !(0 != main_~p2~0); 842#L70-1 assume !(0 != main_~p3~0); 821#L75-1 assume !(0 != main_~p4~0); 823#L80-1 assume !(0 != main_~p5~0); 773#L85-1 [2021-08-31 02:02:56,497 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-31 02:02:56,497 INFO L82 PathProgramCache]: Analyzing trace with hash 963, now seen corresponding path program 5 times [2021-08-31 02:02:56,497 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-31 02:02:56,497 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [614134855] [2021-08-31 02:02:56,498 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-31 02:02:56,498 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-31 02:02:56,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-31 02:02:56,519 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-08-31 02:02:56,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-31 02:02:56,526 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-08-31 02:02:56,526 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-31 02:02:56,526 INFO L82 PathProgramCache]: Analyzing trace with hash 29816563, now seen corresponding path program 1 times [2021-08-31 02:02:56,526 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-31 02:02:56,527 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [27392275] [2021-08-31 02:02:56,527 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-31 02:02:56,527 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-31 02:02:56,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-31 02:02:56,529 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-08-31 02:02:56,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-31 02:02:56,534 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-08-31 02:02:56,534 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-31 02:02:56,534 INFO L82 PathProgramCache]: Analyzing trace with hash 1243965365, now seen corresponding path program 1 times [2021-08-31 02:02:56,534 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-31 02:02:56,535 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [834899427] [2021-08-31 02:02:56,535 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-31 02:02:56,535 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-31 02:02:56,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-31 02:02:56,543 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-08-31 02:02:56,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-31 02:02:56,550 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-08-31 02:02:56,861 FATAL L? ?]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer has thrown an exception: java.lang.ClassCastException: class de.uni_freiburg.informatik.ultimate.util.statistics.StatisticsAggregator cannot be cast to class de.uni_freiburg.informatik.ultimate.util.statistics.StatisticsData (de.uni_freiburg.informatik.ultimate.util.statistics.StatisticsAggregator and de.uni_freiburg.informatik.ultimate.util.statistics.StatisticsData are in unnamed module of loader org.eclipse.osgi.internal.loader.EquinoxClassLoader @560348e6) at de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiCegarLoopBenchmark.prettyprintBenchmarkData(BuchiCegarLoopBenchmark.java:178) at de.uni_freiburg.informatik.ultimate.util.statistics.StatisticsData.toString(StatisticsData.java:100) at de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerTimingBenchmark.toString(BuchiAutomizerTimingBenchmark.java:44) at de.uni_freiburg.informatik.ultimate.core.lib.results.StatisticsResult.getLongDescription(StatisticsResult.java:58) at de.uni_freiburg.informatik.ultimate.core.coreplugin.services.ResultService.reportResult(ResultService.java:86) at de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver.reportResult(BuchiAutomizerObserver.java:375) at de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver.doTerminationAnalysis(BuchiAutomizerObserver.java:161) at de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver.finish(BuchiAutomizerObserver.java:398) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:168) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:320) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) [2021-08-31 02:02:56,864 INFO L158 Benchmark]: Toolchain (without parser) took 1930.47ms. Allocated memory was 60.8MB in the beginning and 73.4MB in the end (delta: 12.6MB). Free memory was 40.7MB in the beginning and 30.4MB in the end (delta: 10.3MB). Peak memory consumption was 23.2MB. Max. memory is 16.1GB. [2021-08-31 02:02:56,864 INFO L158 Benchmark]: CDTParser took 0.19ms. Allocated memory is still 60.8MB. Free memory was 42.3MB in the beginning and 42.2MB in the end (delta: 84.0kB). There was no memory consumed. Max. memory is 16.1GB. [2021-08-31 02:02:56,865 INFO L158 Benchmark]: CACSL2BoogieTranslator took 240.04ms. Allocated memory is still 60.8MB. Free memory was 40.7MB in the beginning and 43.6MB in the end (delta: -2.9MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2021-08-31 02:02:56,865 INFO L158 Benchmark]: Boogie Procedure Inliner took 26.87ms. Allocated memory is still 60.8MB. Free memory was 43.4MB in the beginning and 42.0MB in the end (delta: 1.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-08-31 02:02:56,865 INFO L158 Benchmark]: Boogie Preprocessor took 26.45ms. Allocated memory is still 60.8MB. Free memory was 42.0MB in the beginning and 41.0MB in the end (delta: 1.0MB). There was no memory consumed. Max. memory is 16.1GB. [2021-08-31 02:02:56,865 INFO L158 Benchmark]: RCFGBuilder took 263.03ms. Allocated memory is still 60.8MB. Free memory was 40.8MB in the beginning and 31.9MB in the end (delta: 8.9MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2021-08-31 02:02:56,866 INFO L158 Benchmark]: BuchiAutomizer took 1368.66ms. Allocated memory was 60.8MB in the beginning and 73.4MB in the end (delta: 12.6MB). Free memory was 31.7MB in the beginning and 30.4MB in the end (delta: 1.3MB). Peak memory consumption was 14.0MB. Max. memory is 16.1GB. [2021-08-31 02:02:56,867 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.19ms. Allocated memory is still 60.8MB. Free memory was 42.3MB in the beginning and 42.2MB in the end (delta: 84.0kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 240.04ms. Allocated memory is still 60.8MB. Free memory was 40.7MB in the beginning and 43.6MB in the end (delta: -2.9MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 26.87ms. Allocated memory is still 60.8MB. Free memory was 43.4MB in the beginning and 42.0MB in the end (delta: 1.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 26.45ms. Allocated memory is still 60.8MB. Free memory was 42.0MB in the beginning and 41.0MB in the end (delta: 1.0MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 263.03ms. Allocated memory is still 60.8MB. Free memory was 40.8MB in the beginning and 31.9MB in the end (delta: 8.9MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * BuchiAutomizer took 1368.66ms. Allocated memory was 60.8MB in the beginning and 73.4MB in the end (delta: 12.6MB). Free memory was 31.7MB in the beginning and 30.4MB in the end (delta: 1.3MB). Peak memory consumption was 14.0MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 4 terminating modules (4 trivial, 0 deterministic, 0 nondeterministic) and one nonterminating remainder module.4 modules have a trivial ranking function, the largest among these consists of 3 locations. The remainder module has 242 locations. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer: - ExceptionOrErrorResult: ClassCastException: class de.uni_freiburg.informatik.ultimate.util.statistics.StatisticsAggregator cannot be cast to class de.uni_freiburg.informatik.ultimate.util.statistics.StatisticsData (de.uni_freiburg.informatik.ultimate.util.statistics.StatisticsAggregator and de.uni_freiburg.informatik.ultimate.util.statistics.StatisticsData are in unnamed module of loader org.eclipse.osgi.internal.loader.EquinoxClassLoader @560348e6) de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer: ClassCastException: class de.uni_freiburg.informatik.ultimate.util.statistics.StatisticsAggregator cannot be cast to class de.uni_freiburg.informatik.ultimate.util.statistics.StatisticsData (de.uni_freiburg.informatik.ultimate.util.statistics.StatisticsAggregator and de.uni_freiburg.informatik.ultimate.util.statistics.StatisticsData are in unnamed module of loader org.eclipse.osgi.internal.loader.EquinoxClassLoader @560348e6): de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiCegarLoopBenchmark.prettyprintBenchmarkData(BuchiCegarLoopBenchmark.java:178) RESULT: Ultimate could not prove your program: Toolchain returned no result. [2021-08-31 02:02:56,906 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Ended with exit code 0 Received shutdown request...