./Ultimate.py --spec ../sv-benchmarks/c/properties/termination.prp --file ../sv-benchmarks/c/memsafety/test-0218.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 54858612 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/memsafety/test-0218.i -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 e525b3430c323c2625b8036d0fc4c6ff8b8539ba ............................................................................................................................................................................................................................................................................................................................................. Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE(TERM) --- Real Ultimate output --- This is Ultimate 0.2.0-5485861 [2020-10-26 06:03:28,293 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-26 06:03:28,297 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-26 06:03:28,347 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-26 06:03:28,347 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-26 06:03:28,353 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-26 06:03:28,357 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-26 06:03:28,364 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-26 06:03:28,368 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-26 06:03:28,375 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-26 06:03:28,377 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-26 06:03:28,382 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-26 06:03:28,382 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-26 06:03:28,386 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-26 06:03:28,388 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-26 06:03:28,390 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-26 06:03:28,391 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-26 06:03:28,395 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-26 06:03:28,399 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-26 06:03:28,409 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-26 06:03:28,411 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-26 06:03:28,413 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-26 06:03:28,416 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-26 06:03:28,417 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-26 06:03:28,426 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-26 06:03:28,427 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-26 06:03:28,427 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-26 06:03:28,430 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-26 06:03:28,431 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-26 06:03:28,432 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-26 06:03:28,433 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-26 06:03:28,434 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-26 06:03:28,437 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-26 06:03:28,438 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-26 06:03:28,439 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-26 06:03:28,440 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-26 06:03:28,443 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-26 06:03:28,444 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-26 06:03:28,444 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-26 06:03:28,447 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-26 06:03:28,448 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-26 06:03:28,449 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-32bit-Automizer_Default.epf [2020-10-26 06:03:28,508 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-26 06:03:28,509 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-26 06:03:28,513 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-26 06:03:28,514 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-26 06:03:28,514 INFO L138 SettingsManager]: * Use SBE=true [2020-10-26 06:03:28,514 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2020-10-26 06:03:28,514 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2020-10-26 06:03:28,515 INFO L138 SettingsManager]: * Use old map elimination=false [2020-10-26 06:03:28,516 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2020-10-26 06:03:28,516 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2020-10-26 06:03:28,517 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2020-10-26 06:03:28,518 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-26 06:03:28,518 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-26 06:03:28,518 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2020-10-26 06:03:28,519 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-26 06:03:28,519 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-26 06:03:28,519 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-26 06:03:28,520 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2020-10-26 06:03:28,520 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2020-10-26 06:03:28,520 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2020-10-26 06:03:28,521 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-26 06:03:28,521 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-26 06:03:28,521 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2020-10-26 06:03:28,522 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-26 06:03:28,522 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2020-10-26 06:03:28,522 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-26 06:03:28,523 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-26 06:03:28,523 INFO L138 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2020-10-26 06:03:28,523 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-26 06:03:28,524 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-26 06:03:28,524 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-26 06:03:28,524 INFO L138 SettingsManager]: * Dump automata to the following directory=/home/matthias/ultimate/dump/auto [2020-10-26 06:03:28,526 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2020-10-26 06:03:28,527 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> e525b3430c323c2625b8036d0fc4c6ff8b8539ba [2020-10-26 06:03:29,006 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-26 06:03:29,054 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-26 06:03:29,057 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-26 06:03:29,059 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-26 06:03:29,060 INFO L275 PluginConnector]: CDTParser initialized [2020-10-26 06:03:29,061 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/memsafety/test-0218.i [2020-10-26 06:03:29,158 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5da7bc3bf/04a2a7bb337f4b3896cac4e8e08503e4/FLAGb07e818ab [2020-10-26 06:03:29,896 INFO L306 CDTParser]: Found 1 translation units. [2020-10-26 06:03:29,897 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/memsafety/test-0218.i [2020-10-26 06:03:29,920 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5da7bc3bf/04a2a7bb337f4b3896cac4e8e08503e4/FLAGb07e818ab [2020-10-26 06:03:30,199 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5da7bc3bf/04a2a7bb337f4b3896cac4e8e08503e4 [2020-10-26 06:03:30,204 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-26 06:03:30,213 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-10-26 06:03:30,220 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-26 06:03:30,220 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-26 06:03:30,225 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-26 06:03:30,227 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.10 06:03:30" (1/1) ... [2020-10-26 06:03:30,236 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@f5b061e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 06:03:30, skipping insertion in model container [2020-10-26 06:03:30,236 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.10 06:03:30" (1/1) ... [2020-10-26 06:03:30,259 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-26 06:03:30,333 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-26 06:03:30,694 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-26 06:03:30,707 INFO L203 MainTranslator]: Completed pre-run [2020-10-26 06:03:30,783 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-26 06:03:30,913 INFO L208 MainTranslator]: Completed translation [2020-10-26 06:03:30,914 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 06:03:30 WrapperNode [2020-10-26 06:03:30,914 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-26 06:03:30,915 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-10-26 06:03:30,915 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-10-26 06:03:30,916 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-10-26 06:03:30,924 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 06:03:30" (1/1) ... [2020-10-26 06:03:30,944 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 06:03:30" (1/1) ... [2020-10-26 06:03:30,979 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-10-26 06:03:30,982 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-26 06:03:30,982 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-26 06:03:30,982 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-26 06:03:30,994 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 06:03:30" (1/1) ... [2020-10-26 06:03:30,995 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 06:03:30" (1/1) ... [2020-10-26 06:03:31,006 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 06:03:30" (1/1) ... [2020-10-26 06:03:31,007 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 06:03:30" (1/1) ... [2020-10-26 06:03:31,033 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 06:03:30" (1/1) ... [2020-10-26 06:03:31,044 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 06:03:30" (1/1) ... [2020-10-26 06:03:31,051 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 06:03:30" (1/1) ... [2020-10-26 06:03:31,058 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-26 06:03:31,059 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-26 06:03:31,059 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-26 06:03:31,059 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-26 06:03:31,060 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 06:03:30" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-26 06:03:31,142 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2020-10-26 06:03:31,143 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2020-10-26 06:03:31,143 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-10-26 06:03:31,143 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-10-26 06:03:31,144 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-26 06:03:31,144 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-10-26 06:03:31,144 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-26 06:03:31,144 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2020-10-26 06:03:31,144 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-26 06:03:31,145 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-26 06:03:31,145 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-26 06:03:31,315 WARN L798 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2020-10-26 06:03:31,718 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-26 06:03:31,719 INFO L298 CfgBuilder]: Removed 21 assume(true) statements. [2020-10-26 06:03:31,720 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.10 06:03:31 BoogieIcfgContainer [2020-10-26 06:03:31,721 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-26 06:03:31,723 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2020-10-26 06:03:31,723 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2020-10-26 06:03:31,727 INFO L275 PluginConnector]: BuchiAutomizer initialized [2020-10-26 06:03:31,728 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-10-26 06:03:31,728 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 26.10 06:03:30" (1/3) ... [2020-10-26 06:03:31,729 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@38b3bdd2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 26.10 06:03:31, skipping insertion in model container [2020-10-26 06:03:31,729 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-10-26 06:03:31,729 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 06:03:30" (2/3) ... [2020-10-26 06:03:31,730 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@38b3bdd2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 26.10 06:03:31, skipping insertion in model container [2020-10-26 06:03:31,730 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-10-26 06:03:31,730 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.10 06:03:31" (3/3) ... [2020-10-26 06:03:31,731 INFO L373 chiAutomizerObserver]: Analyzing ICFG test-0218.i [2020-10-26 06:03:31,839 INFO L359 BuchiCegarLoop]: Interprodecural is true [2020-10-26 06:03:31,839 INFO L360 BuchiCegarLoop]: Hoare is false [2020-10-26 06:03:31,839 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2020-10-26 06:03:31,840 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-26 06:03:31,840 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-26 06:03:31,840 INFO L364 BuchiCegarLoop]: Difference is false [2020-10-26 06:03:31,840 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-26 06:03:31,840 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2020-10-26 06:03:31,859 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 52 states. [2020-10-26 06:03:31,897 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 39 [2020-10-26 06:03:31,898 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-10-26 06:03:31,898 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-10-26 06:03:31,905 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [1, 1] [2020-10-26 06:03:31,906 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2020-10-26 06:03:31,906 INFO L427 BuchiCegarLoop]: ======== Iteration 1============ [2020-10-26 06:03:31,906 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 52 states. [2020-10-26 06:03:31,921 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 39 [2020-10-26 06:03:31,921 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-10-26 06:03:31,922 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-10-26 06:03:31,922 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [1, 1] [2020-10-26 06:03:31,923 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2020-10-26 06:03:31,931 INFO L794 eck$LassoCheckResult]: Stem: 27#ULTIMATE.startENTRYtrue #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string0.base, #t~string0.offset := #Ultimate.allocOnStack(2);call write~init~int(48, #t~string0.base, #t~string0.offset, 1);call write~init~int(0, #t~string0.base, 1 + #t~string0.offset, 1);call #t~string1.base, #t~string1.offset := #Ultimate.allocOnStack(12);call ~#list~0.base, ~#list~0.offset := #Ultimate.allocOnStack(8);call write~init~$Pointer$(0, 0, ~#list~0.base, ~#list~0.offset, 4);call write~init~$Pointer$(0, 0, ~#list~0.base, 4 + ~#list~0.offset, 4); 7#L-1true havoc main_#res;havoc main_#t~ret33, main_#t~nondet32, main_#t~ret35, main_#t~nondet34, main_#t~nondet31, main_#t~nondet36, main_#t~mem37.base, main_#t~mem37.offset, main_#t~mem38.base, main_#t~mem38.offset, main_~next~1.base, main_~next~1.offset, main_~end_point~0, main_~direction~0, main_~cursor~1.base, main_~cursor~1.offset; 37#L726-2true [2020-10-26 06:03:31,933 INFO L796 eck$LassoCheckResult]: Loop: 37#L726-2true assume !!(0 != main_#t~nondet31);havoc main_#t~nondet31; 12#L724-2true assume !true; 44#L726-1true assume !true; 37#L726-2true [2020-10-26 06:03:31,944 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 06:03:31,944 INFO L82 PathProgramCache]: Analyzing trace with hash 1251, now seen corresponding path program 1 times [2020-10-26 06:03:31,953 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-26 06:03:31,954 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [897263780] [2020-10-26 06:03:31,954 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 06:03:32,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-26 06:03:32,089 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-26 06:03:32,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-26 06:03:32,136 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-26 06:03:32,173 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-26 06:03:32,175 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 06:03:32,175 INFO L82 PathProgramCache]: Analyzing trace with hash 52490, now seen corresponding path program 1 times [2020-10-26 06:03:32,175 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-26 06:03:32,176 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [838170568] [2020-10-26 06:03:32,176 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 06:03:32,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 06:03:32,214 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-26 06:03:32,214 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [838170568] [2020-10-26 06:03:32,215 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-26 06:03:32,216 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-26 06:03:32,216 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [563819208] [2020-10-26 06:03:32,222 INFO L811 eck$LassoCheckResult]: loop already infeasible [2020-10-26 06:03:32,223 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-26 06:03:32,242 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-10-26 06:03:32,244 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-10-26 06:03:32,246 INFO L87 Difference]: Start difference. First operand 52 states. Second operand 2 states. [2020-10-26 06:03:32,267 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-26 06:03:32,267 INFO L93 Difference]: Finished difference Result 52 states and 72 transitions. [2020-10-26 06:03:32,267 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-10-26 06:03:32,270 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 52 states and 72 transitions. [2020-10-26 06:03:32,273 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 39 [2020-10-26 06:03:32,278 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 52 states to 48 states and 68 transitions. [2020-10-26 06:03:32,280 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 48 [2020-10-26 06:03:32,280 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 48 [2020-10-26 06:03:32,281 INFO L73 IsDeterministic]: Start isDeterministic. Operand 48 states and 68 transitions. [2020-10-26 06:03:32,281 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-10-26 06:03:32,282 INFO L691 BuchiCegarLoop]: Abstraction has 48 states and 68 transitions. [2020-10-26 06:03:32,300 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 48 states and 68 transitions. [2020-10-26 06:03:32,313 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 48 to 48. [2020-10-26 06:03:32,314 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 48 states. [2020-10-26 06:03:32,315 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 48 states to 48 states and 68 transitions. [2020-10-26 06:03:32,317 INFO L714 BuchiCegarLoop]: Abstraction has 48 states and 68 transitions. [2020-10-26 06:03:32,317 INFO L594 BuchiCegarLoop]: Abstraction has 48 states and 68 transitions. [2020-10-26 06:03:32,317 INFO L427 BuchiCegarLoop]: ======== Iteration 2============ [2020-10-26 06:03:32,317 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 48 states and 68 transitions. [2020-10-26 06:03:32,319 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 39 [2020-10-26 06:03:32,319 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-10-26 06:03:32,319 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-10-26 06:03:32,319 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [1, 1] [2020-10-26 06:03:32,319 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2020-10-26 06:03:32,320 INFO L794 eck$LassoCheckResult]: Stem: 157#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string0.base, #t~string0.offset := #Ultimate.allocOnStack(2);call write~init~int(48, #t~string0.base, #t~string0.offset, 1);call write~init~int(0, #t~string0.base, 1 + #t~string0.offset, 1);call #t~string1.base, #t~string1.offset := #Ultimate.allocOnStack(12);call ~#list~0.base, ~#list~0.offset := #Ultimate.allocOnStack(8);call write~init~$Pointer$(0, 0, ~#list~0.base, ~#list~0.offset, 4);call write~init~$Pointer$(0, 0, ~#list~0.base, 4 + ~#list~0.offset, 4); 132#L-1 havoc main_#res;havoc main_#t~ret33, main_#t~nondet32, main_#t~ret35, main_#t~nondet34, main_#t~nondet31, main_#t~nondet36, main_#t~mem37.base, main_#t~mem37.offset, main_#t~mem38.base, main_#t~mem38.offset, main_~next~1.base, main_~next~1.offset, main_~end_point~0, main_~direction~0, main_~cursor~1.base, main_~cursor~1.offset; 133#L726-2 [2020-10-26 06:03:32,320 INFO L796 eck$LassoCheckResult]: Loop: 133#L726-2 assume !!(0 != main_#t~nondet31);havoc main_#t~nondet31; 135#L724-2 assume !(0 != main_#t~nondet32);havoc main_#t~nondet32; 117#L726-1 assume !(0 != main_#t~nondet34);havoc main_#t~nondet34; 133#L726-2 [2020-10-26 06:03:32,320 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 06:03:32,320 INFO L82 PathProgramCache]: Analyzing trace with hash 1251, now seen corresponding path program 2 times [2020-10-26 06:03:32,321 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-26 06:03:32,321 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1410512355] [2020-10-26 06:03:32,321 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 06:03:32,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-26 06:03:32,337 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-26 06:03:32,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-26 06:03:32,349 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-26 06:03:32,353 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-26 06:03:32,354 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 06:03:32,354 INFO L82 PathProgramCache]: Analyzing trace with hash 49962, now seen corresponding path program 1 times [2020-10-26 06:03:32,355 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-26 06:03:32,355 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [113934663] [2020-10-26 06:03:32,355 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 06:03:32,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-26 06:03:32,367 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-26 06:03:32,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-26 06:03:32,371 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-26 06:03:32,375 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-26 06:03:32,380 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 06:03:32,381 INFO L82 PathProgramCache]: Analyzing trace with hash 37288712, now seen corresponding path program 1 times [2020-10-26 06:03:32,381 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-26 06:03:32,381 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [382762868] [2020-10-26 06:03:32,381 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 06:03:32,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-26 06:03:32,403 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-26 06:03:32,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-26 06:03:32,441 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-26 06:03:32,452 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-26 06:03:32,893 WARN L193 SmtUtils]: Spent 315.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 65 [2020-10-26 06:03:33,002 WARN L193 SmtUtils]: Spent 104.00 ms on a formula simplification that was a NOOP. DAG size: 65 [2020-10-26 06:03:33,047 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 26.10 06:03:33 BoogieIcfgContainer [2020-10-26 06:03:33,047 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2020-10-26 06:03:33,048 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-10-26 06:03:33,048 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-10-26 06:03:33,049 INFO L275 PluginConnector]: Witness Printer initialized [2020-10-26 06:03:33,050 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.10 06:03:31" (3/4) ... [2020-10-26 06:03:33,053 INFO L134 WitnessPrinter]: Generating witness for non-termination counterexample [2020-10-26 06:03:33,097 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2020-10-26 06:03:33,098 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-10-26 06:03:33,107 INFO L168 Benchmark]: Toolchain (without parser) took 2892.52 ms. Allocated memory was 46.1 MB in the beginning and 73.4 MB in the end (delta: 27.3 MB). Free memory was 21.0 MB in the beginning and 40.7 MB in the end (delta: -19.7 MB). Peak memory consumption was 8.7 MB. Max. memory is 16.1 GB. [2020-10-26 06:03:33,107 INFO L168 Benchmark]: CDTParser took 0.29 ms. Allocated memory is still 46.1 MB. Free memory is still 27.4 MB. There was no memory consumed. Max. memory is 16.1 GB. [2020-10-26 06:03:33,109 INFO L168 Benchmark]: CACSL2BoogieTranslator took 694.86 ms. Allocated memory was 46.1 MB in the beginning and 58.7 MB in the end (delta: 12.6 MB). Free memory was 20.5 MB in the beginning and 26.9 MB in the end (delta: -6.5 MB). Peak memory consumption was 14.8 MB. Max. memory is 16.1 GB. [2020-10-26 06:03:33,110 INFO L168 Benchmark]: Boogie Procedure Inliner took 64.45 ms. Allocated memory is still 58.7 MB. Free memory was 26.9 MB in the beginning and 24.3 MB in the end (delta: 2.6 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-10-26 06:03:33,110 INFO L168 Benchmark]: Boogie Preprocessor took 76.35 ms. Allocated memory is still 58.7 MB. Free memory was 24.3 MB in the beginning and 22.3 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-10-26 06:03:33,111 INFO L168 Benchmark]: RCFGBuilder took 662.36 ms. Allocated memory is still 58.7 MB. Free memory was 22.0 MB in the beginning and 24.1 MB in the end (delta: -2.1 MB). Peak memory consumption was 5.6 MB. Max. memory is 16.1 GB. [2020-10-26 06:03:33,114 INFO L168 Benchmark]: BuchiAutomizer took 1324.28 ms. Allocated memory was 58.7 MB in the beginning and 73.4 MB in the end (delta: 14.7 MB). Free memory was 23.8 MB in the beginning and 42.7 MB in the end (delta: -18.9 MB). Peak memory consumption was 14.8 MB. Max. memory is 16.1 GB. [2020-10-26 06:03:33,115 INFO L168 Benchmark]: Witness Printer took 49.46 ms. Allocated memory is still 73.4 MB. Free memory was 42.7 MB in the beginning and 40.7 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-10-26 06:03:33,125 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.29 ms. Allocated memory is still 46.1 MB. Free memory is still 27.4 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 694.86 ms. Allocated memory was 46.1 MB in the beginning and 58.7 MB in the end (delta: 12.6 MB). Free memory was 20.5 MB in the beginning and 26.9 MB in the end (delta: -6.5 MB). Peak memory consumption was 14.8 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 64.45 ms. Allocated memory is still 58.7 MB. Free memory was 26.9 MB in the beginning and 24.3 MB in the end (delta: 2.6 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 76.35 ms. Allocated memory is still 58.7 MB. Free memory was 24.3 MB in the beginning and 22.3 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 662.36 ms. Allocated memory is still 58.7 MB. Free memory was 22.0 MB in the beginning and 24.1 MB in the end (delta: -2.1 MB). Peak memory consumption was 5.6 MB. Max. memory is 16.1 GB. * BuchiAutomizer took 1324.28 ms. Allocated memory was 58.7 MB in the beginning and 73.4 MB in the end (delta: 14.7 MB). Free memory was 23.8 MB in the beginning and 42.7 MB in the end (delta: -18.9 MB). Peak memory consumption was 14.8 MB. Max. memory is 16.1 GB. * Witness Printer took 49.46 ms. Allocated memory is still 73.4 MB. Free memory was 42.7 MB in the beginning and 40.7 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 1 terminating modules (1 trivial, 0 deterministic, 0 nondeterministic) and one nonterminating remainder module.1 modules have a trivial ranking function, the largest among these consists of 2 locations. The remainder module has 48 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 1.2s and 2 iterations. TraceHistogramMax:1. Analysis of lassos took 0.9s. Construction of modules took 0.0s. Büchi inclusion checks took 0.0s. Highest rank in rank-based complementation 0. Minimization of det autom 1. Minimization of nondet autom 0. Automata minimization 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 48 states and ocurred in iteration 1. Nontrivial modules had stage [0, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 72 SDtfs, 0 SDslu, 0 SDs, 0 SdLazy, 0 SolverSat, 0 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time LassoAnalysisResults: nont1 unkn0 SFLI1 SFLT0 conc0 concLT0 SILN0 SILU0 SILI0 SILT0 lasso0 LassoPreprocessingBenchmarks: LassoTerminationAnalysisBenchmarks: not availableLassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 0 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 0 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.0s - TerminationAnalysisResult: Nontermination possible Buchi Automizer proved that your program is nonterminating for some inputs - FixpointNonTerminationResult [Line: 723]: Nontermination argument in form of an infinite program execution. Nontermination argument in form of an infinite execution State at position 0 is {NULL=30215} State at position 1 is {cursor=0, NULL=0, NULL=30216, \result=0, NULL=30215, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@7defe084=18, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@a325034=0, list=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTArraySubscriptExpression@5a3628c=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTArraySubscriptExpression@5a3628c=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTArraySubscriptExpression@617183a7=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@32d15fd3=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@36eca297=0, NULL=0, NULL=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@3b2da27f=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@cdd2006=0, end_point=0, NULL=30218, NULL=0, list=30217, org.eclipse.cdt.internal.core.dom.parser.c.CASTArraySubscriptExpression@617183a7=0, next=0, next=0, cursor=0, direction=0} - StatisticsResult: NonterminationArgumentStatistics Fixpoint - NonterminatingLassoResult [Line: 723]: Nonterminating execution Found a nonterminating execution for the following lasso shaped sequence of statements. Stem: [L722] static list_t list; Loop: [L723] COND TRUE __VERIFIER_nondet_int() [L724] COND FALSE !(__VERIFIER_nondet_int()) [L726] COND FALSE !(__VERIFIER_nondet_int()) End of lasso representation. RESULT: Ultimate proved your program to be incorrect! Received shutdown request...