./Ultimate.py --spec ../sv-benchmarks/c/properties/termination.prp --file ../sv-benchmarks/c/memsafety/test-0214.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 35987657 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-0214.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 3f6f146d76d903376288fe056dbbc9e1a8443f92d5e8b82343734efc8a9842e4 --- Real Ultimate output --- This is Ultimate 0.2.2-?-3598765 [2022-07-22 03:14:15,244 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-07-22 03:14:15,246 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-07-22 03:14:15,274 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-07-22 03:14:15,275 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-07-22 03:14:15,276 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-07-22 03:14:15,280 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-07-22 03:14:15,283 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-07-22 03:14:15,285 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-07-22 03:14:15,289 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-07-22 03:14:15,290 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-07-22 03:14:15,292 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-07-22 03:14:15,292 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-07-22 03:14:15,294 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-07-22 03:14:15,296 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-07-22 03:14:15,297 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-07-22 03:14:15,298 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-07-22 03:14:15,300 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-07-22 03:14:15,303 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-07-22 03:14:15,307 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-07-22 03:14:15,311 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-07-22 03:14:15,312 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-07-22 03:14:15,313 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-07-22 03:14:15,314 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-07-22 03:14:15,316 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-07-22 03:14:15,323 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-07-22 03:14:15,335 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-07-22 03:14:15,335 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-07-22 03:14:15,336 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-07-22 03:14:15,336 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-07-22 03:14:15,337 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-07-22 03:14:15,337 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-07-22 03:14:15,338 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-07-22 03:14:15,338 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-07-22 03:14:15,339 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-07-22 03:14:15,339 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-07-22 03:14:15,339 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-07-22 03:14:15,340 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-07-22 03:14:15,340 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-07-22 03:14:15,340 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-07-22 03:14:15,340 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-07-22 03:14:15,341 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-07-22 03:14:15,342 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-32bit-Automizer_Default.epf [2022-07-22 03:14:15,366 INFO L113 SettingsManager]: Loading preferences was successful [2022-07-22 03:14:15,368 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-07-22 03:14:15,369 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-07-22 03:14:15,369 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-07-22 03:14:15,371 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-07-22 03:14:15,371 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-07-22 03:14:15,371 INFO L138 SettingsManager]: * Use SBE=true [2022-07-22 03:14:15,371 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2022-07-22 03:14:15,372 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2022-07-22 03:14:15,373 INFO L138 SettingsManager]: * Use old map elimination=false [2022-07-22 03:14:15,373 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2022-07-22 03:14:15,373 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2022-07-22 03:14:15,373 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2022-07-22 03:14:15,374 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-07-22 03:14:15,374 INFO L138 SettingsManager]: * sizeof long=4 [2022-07-22 03:14:15,374 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-07-22 03:14:15,374 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-07-22 03:14:15,374 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-07-22 03:14:15,375 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-07-22 03:14:15,375 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2022-07-22 03:14:15,375 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2022-07-22 03:14:15,376 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2022-07-22 03:14:15,376 INFO L138 SettingsManager]: * sizeof long double=12 [2022-07-22 03:14:15,376 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-07-22 03:14:15,377 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2022-07-22 03:14:15,377 INFO L138 SettingsManager]: * Use constant arrays=true [2022-07-22 03:14:15,377 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2022-07-22 03:14:15,378 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-07-22 03:14:15,378 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-07-22 03:14:15,378 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-07-22 03:14:15,378 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-07-22 03:14:15,381 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2022-07-22 03:14:15,381 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 3f6f146d76d903376288fe056dbbc9e1a8443f92d5e8b82343734efc8a9842e4 [2022-07-22 03:14:15,696 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-07-22 03:14:15,720 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-07-22 03:14:15,722 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-07-22 03:14:15,723 INFO L271 PluginConnector]: Initializing CDTParser... [2022-07-22 03:14:15,724 INFO L275 PluginConnector]: CDTParser initialized [2022-07-22 03:14:15,726 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/memsafety/test-0214.i [2022-07-22 03:14:15,782 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a3282cc57/5a1c3464f19b417a9fe1842213faca9f/FLAGdc2e208a5 [2022-07-22 03:14:16,220 INFO L306 CDTParser]: Found 1 translation units. [2022-07-22 03:14:16,223 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/memsafety/test-0214.i [2022-07-22 03:14:16,238 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a3282cc57/5a1c3464f19b417a9fe1842213faca9f/FLAGdc2e208a5 [2022-07-22 03:14:16,257 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a3282cc57/5a1c3464f19b417a9fe1842213faca9f [2022-07-22 03:14:16,259 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-07-22 03:14:16,260 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-07-22 03:14:16,262 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-07-22 03:14:16,262 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-07-22 03:14:16,264 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-07-22 03:14:16,265 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.07 03:14:16" (1/1) ... [2022-07-22 03:14:16,266 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3443da and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 03:14:16, skipping insertion in model container [2022-07-22 03:14:16,266 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.07 03:14:16" (1/1) ... [2022-07-22 03:14:16,270 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-07-22 03:14:16,306 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-22 03:14:16,646 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-22 03:14:16,656 INFO L203 MainTranslator]: Completed pre-run [2022-07-22 03:14:16,704 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-22 03:14:16,745 INFO L208 MainTranslator]: Completed translation [2022-07-22 03:14:16,745 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 03:14:16 WrapperNode [2022-07-22 03:14:16,745 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-07-22 03:14:16,746 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-07-22 03:14:16,747 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-07-22 03:14:16,747 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-07-22 03:14:16,751 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 03:14:16" (1/1) ... [2022-07-22 03:14:16,778 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 03:14:16" (1/1) ... [2022-07-22 03:14:16,802 INFO L137 Inliner]: procedures = 181, calls = 42, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 171 [2022-07-22 03:14:16,803 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-07-22 03:14:16,803 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-07-22 03:14:16,803 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-07-22 03:14:16,803 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-07-22 03:14:16,809 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 03:14:16" (1/1) ... [2022-07-22 03:14:16,809 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 03:14:16" (1/1) ... [2022-07-22 03:14:16,818 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 03:14:16" (1/1) ... [2022-07-22 03:14:16,819 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 03:14:16" (1/1) ... [2022-07-22 03:14:16,826 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 03:14:16" (1/1) ... [2022-07-22 03:14:16,837 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 03:14:16" (1/1) ... [2022-07-22 03:14:16,839 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 03:14:16" (1/1) ... [2022-07-22 03:14:16,847 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-07-22 03:14:16,848 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-07-22 03:14:16,848 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-07-22 03:14:16,848 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-07-22 03:14:16,851 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 03:14:16" (1/1) ... [2022-07-22 03:14:16,857 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-22 03:14:16,866 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-22 03:14:16,882 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) [2022-07-22 03:14:16,890 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 [2022-07-22 03:14:16,909 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-07-22 03:14:16,909 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2022-07-22 03:14:16,909 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2022-07-22 03:14:16,910 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-07-22 03:14:16,910 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-07-22 03:14:16,910 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-07-22 03:14:16,911 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-07-22 03:14:16,911 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-07-22 03:14:16,912 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-07-22 03:14:16,912 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-07-22 03:14:16,912 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-07-22 03:14:16,915 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-07-22 03:14:17,009 INFO L234 CfgBuilder]: Building ICFG [2022-07-22 03:14:17,010 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-07-22 03:14:17,012 WARN L811 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2022-07-22 03:14:17,334 INFO L275 CfgBuilder]: Performing block encoding [2022-07-22 03:14:17,341 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-07-22 03:14:17,342 INFO L299 CfgBuilder]: Removed 4 assume(true) statements. [2022-07-22 03:14:17,343 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.07 03:14:17 BoogieIcfgContainer [2022-07-22 03:14:17,344 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-07-22 03:14:17,345 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2022-07-22 03:14:17,345 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2022-07-22 03:14:17,348 INFO L275 PluginConnector]: BuchiAutomizer initialized [2022-07-22 03:14:17,348 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-07-22 03:14:17,349 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 22.07 03:14:16" (1/3) ... [2022-07-22 03:14:17,350 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@352f66c8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 22.07 03:14:17, skipping insertion in model container [2022-07-22 03:14:17,350 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-07-22 03:14:17,350 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 03:14:16" (2/3) ... [2022-07-22 03:14:17,350 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@352f66c8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 22.07 03:14:17, skipping insertion in model container [2022-07-22 03:14:17,350 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-07-22 03:14:17,350 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.07 03:14:17" (3/3) ... [2022-07-22 03:14:17,351 INFO L354 chiAutomizerObserver]: Analyzing ICFG test-0214.i [2022-07-22 03:14:17,408 INFO L255 stractBuchiCegarLoop]: Interprodecural is true [2022-07-22 03:14:17,408 INFO L256 stractBuchiCegarLoop]: Hoare is false [2022-07-22 03:14:17,408 INFO L257 stractBuchiCegarLoop]: Compute interpolants for ForwardPredicates [2022-07-22 03:14:17,408 INFO L258 stractBuchiCegarLoop]: Backedges is STRAIGHT_LINE [2022-07-22 03:14:17,408 INFO L259 stractBuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2022-07-22 03:14:17,409 INFO L260 stractBuchiCegarLoop]: Difference is false [2022-07-22 03:14:17,409 INFO L261 stractBuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2022-07-22 03:14:17,410 INFO L265 stractBuchiCegarLoop]: ======== Iteration 0 == of CEGAR loop == BuchiAutomatonCegarLoop ======== [2022-07-22 03:14:17,414 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 46 states, 43 states have (on average 1.5348837209302326) internal successors, (66), 43 states have internal predecessors, (66), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-07-22 03:14:17,437 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 33 [2022-07-22 03:14:17,437 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-07-22 03:14:17,437 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-07-22 03:14:17,443 INFO L179 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1] [2022-07-22 03:14:17,443 INFO L180 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1] [2022-07-22 03:14:17,443 INFO L287 stractBuchiCegarLoop]: ======== Iteration 1 ============ [2022-07-22 03:14:17,444 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 46 states, 43 states have (on average 1.5348837209302326) internal successors, (66), 43 states have internal predecessors, (66), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-07-22 03:14:17,451 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 33 [2022-07-22 03:14:17,452 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-07-22 03:14:17,452 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-07-22 03:14:17,452 INFO L179 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1] [2022-07-22 03:14:17,452 INFO L180 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1] [2022-07-22 03:14:17,458 INFO L752 eck$LassoCheckResult]: Stem: 23#ULTIMATE.startENTRYtrue assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int(48, 1, 0, 1);call write~init~int(0, 1, 1, 1);call #Ultimate.allocInit(12, 2);~#list~0.base, ~#list~0.offset := 3, 0;call #Ultimate.allocInit(8, 3);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); 3#L-1true assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret23#1, main_#t~nondet22#1, main_#t~ret25#1, main_#t~nondet24#1, main_#t~nondet21#1, main_#t~nondet26#1, main_#t~mem27#1.base, main_#t~mem27#1.offset, main_#t~mem28#1.base, main_#t~mem28#1.offset, main_~next~1#1.base, main_~next~1#1.offset, main_~end_point~0#1, main_~direction~0#1, main_~cursor~0#1.base, main_~cursor~0#1.offset; 24#L728-2true [2022-07-22 03:14:17,458 INFO L754 eck$LassoCheckResult]: Loop: 24#L728-2true assume !!(0 != main_#t~nondet21#1);havoc main_#t~nondet21#1; 4#L726-2true assume !true; 22#L728-1true assume !true; 24#L728-2true [2022-07-22 03:14:17,464 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 03:14:17,464 INFO L85 PathProgramCache]: Analyzing trace with hash 1251, now seen corresponding path program 1 times [2022-07-22 03:14:17,471 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 03:14:17,472 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [598945014] [2022-07-22 03:14:17,473 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 03:14:17,474 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 03:14:17,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-22 03:14:17,549 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-07-22 03:14:17,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-22 03:14:17,585 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-07-22 03:14:17,587 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 03:14:17,587 INFO L85 PathProgramCache]: Analyzing trace with hash 51626, now seen corresponding path program 1 times [2022-07-22 03:14:17,587 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 03:14:17,588 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1049076240] [2022-07-22 03:14:17,588 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 03:14:17,589 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 03:14:17,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 03:14:17,638 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-22 03:14:17,638 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-22 03:14:17,639 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1049076240] [2022-07-22 03:14:17,639 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1049076240] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-22 03:14:17,639 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-22 03:14:17,639 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-07-22 03:14:17,639 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1477354555] [2022-07-22 03:14:17,640 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-22 03:14:17,643 INFO L769 eck$LassoCheckResult]: loop already infeasible [2022-07-22 03:14:17,643 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-22 03:14:17,670 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-07-22 03:14:17,671 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-07-22 03:14:17,673 INFO L87 Difference]: Start difference. First operand has 46 states, 43 states have (on average 1.5348837209302326) internal successors, (66), 43 states have internal predecessors, (66), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Second operand has 2 states, 2 states have (on average 1.5) internal successors, (3), 2 states have internal predecessors, (3), 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) [2022-07-22 03:14:17,685 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-22 03:14:17,686 INFO L93 Difference]: Finished difference Result 46 states and 63 transitions. [2022-07-22 03:14:17,686 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-07-22 03:14:17,691 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 46 states and 63 transitions. [2022-07-22 03:14:17,696 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 33 [2022-07-22 03:14:17,701 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 46 states to 42 states and 59 transitions. [2022-07-22 03:14:17,702 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 42 [2022-07-22 03:14:17,703 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 42 [2022-07-22 03:14:17,704 INFO L73 IsDeterministic]: Start isDeterministic. Operand 42 states and 59 transitions. [2022-07-22 03:14:17,704 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-07-22 03:14:17,704 INFO L369 hiAutomatonCegarLoop]: Abstraction has 42 states and 59 transitions. [2022-07-22 03:14:17,717 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 42 states and 59 transitions. [2022-07-22 03:14:17,725 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 42 to 42. [2022-07-22 03:14:17,726 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 42 states, 40 states have (on average 1.425) internal successors, (57), 39 states have internal predecessors, (57), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-07-22 03:14:17,730 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42 states to 42 states and 59 transitions. [2022-07-22 03:14:17,731 INFO L392 hiAutomatonCegarLoop]: Abstraction has 42 states and 59 transitions. [2022-07-22 03:14:17,732 INFO L374 stractBuchiCegarLoop]: Abstraction has 42 states and 59 transitions. [2022-07-22 03:14:17,732 INFO L287 stractBuchiCegarLoop]: ======== Iteration 2 ============ [2022-07-22 03:14:17,732 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 42 states and 59 transitions. [2022-07-22 03:14:17,733 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 33 [2022-07-22 03:14:17,733 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-07-22 03:14:17,733 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-07-22 03:14:17,733 INFO L179 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1] [2022-07-22 03:14:17,734 INFO L180 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1] [2022-07-22 03:14:17,734 INFO L752 eck$LassoCheckResult]: Stem: 131#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int(48, 1, 0, 1);call write~init~int(0, 1, 1, 1);call #Ultimate.allocInit(12, 2);~#list~0.base, ~#list~0.offset := 3, 0;call #Ultimate.allocInit(8, 3);call write~init~$Pointer$(0, 0, ~#list~0.base, ~#list~0.offset, 4);call write~init~$Pointer$(0, 0, ~#list~0.base, 4 + ~#list~0.offset, 4); 100#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret23#1, main_#t~nondet22#1, main_#t~ret25#1, main_#t~nondet24#1, main_#t~nondet21#1, main_#t~nondet26#1, main_#t~mem27#1.base, main_#t~mem27#1.offset, main_#t~mem28#1.base, main_#t~mem28#1.offset, main_~next~1#1.base, main_~next~1#1.offset, main_~end_point~0#1, main_~direction~0#1, main_~cursor~0#1.base, main_~cursor~0#1.offset; 101#L728-2 [2022-07-22 03:14:17,734 INFO L754 eck$LassoCheckResult]: Loop: 101#L728-2 assume !!(0 != main_#t~nondet21#1);havoc main_#t~nondet21#1; 102#L726-2 assume !(0 != main_#t~nondet22#1);havoc main_#t~nondet22#1; 103#L728-1 assume !(0 != main_#t~nondet24#1);havoc main_#t~nondet24#1; 101#L728-2 [2022-07-22 03:14:17,735 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 03:14:17,735 INFO L85 PathProgramCache]: Analyzing trace with hash 1251, now seen corresponding path program 2 times [2022-07-22 03:14:17,735 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 03:14:17,736 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2103486446] [2022-07-22 03:14:17,736 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 03:14:17,736 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 03:14:17,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-22 03:14:17,752 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-07-22 03:14:17,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-22 03:14:17,758 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-07-22 03:14:17,759 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 03:14:17,759 INFO L85 PathProgramCache]: Analyzing trace with hash 49935, now seen corresponding path program 1 times [2022-07-22 03:14:17,759 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 03:14:17,759 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [576036143] [2022-07-22 03:14:17,759 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 03:14:17,759 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 03:14:17,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-22 03:14:17,762 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-07-22 03:14:17,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-22 03:14:17,766 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-07-22 03:14:17,767 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 03:14:17,767 INFO L85 PathProgramCache]: Analyzing trace with hash 37288685, now seen corresponding path program 1 times [2022-07-22 03:14:17,767 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 03:14:17,768 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1114126235] [2022-07-22 03:14:17,768 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 03:14:17,768 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 03:14:17,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-22 03:14:17,782 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-07-22 03:14:17,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-22 03:14:17,791 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-07-22 03:14:17,980 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 22.07 03:14:17 BoogieIcfgContainer [2022-07-22 03:14:17,980 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2022-07-22 03:14:17,981 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-07-22 03:14:17,981 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-07-22 03:14:17,981 INFO L275 PluginConnector]: Witness Printer initialized [2022-07-22 03:14:17,982 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.07 03:14:17" (3/4) ... [2022-07-22 03:14:17,983 INFO L134 WitnessPrinter]: Generating witness for non-termination counterexample [2022-07-22 03:14:18,009 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2022-07-22 03:14:18,009 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-07-22 03:14:18,010 INFO L158 Benchmark]: Toolchain (without parser) took 1749.38ms. Allocated memory was 48.2MB in the beginning and 77.6MB in the end (delta: 29.4MB). Free memory was 32.9MB in the beginning and 49.0MB in the end (delta: -16.1MB). Peak memory consumption was 11.4MB. Max. memory is 16.1GB. [2022-07-22 03:14:18,011 INFO L158 Benchmark]: CDTParser took 0.18ms. Allocated memory is still 48.2MB. Free memory was 29.7MB in the beginning and 29.7MB in the end (delta: 44.5kB). There was no memory consumed. Max. memory is 16.1GB. [2022-07-22 03:14:18,012 INFO L158 Benchmark]: CACSL2BoogieTranslator took 483.80ms. Allocated memory was 48.2MB in the beginning and 58.7MB in the end (delta: 10.5MB). Free memory was 32.7MB in the beginning and 30.6MB in the end (delta: 2.2MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2022-07-22 03:14:18,014 INFO L158 Benchmark]: Boogie Procedure Inliner took 56.28ms. Allocated memory is still 58.7MB. Free memory was 30.6MB in the beginning and 41.1MB in the end (delta: -10.6MB). Peak memory consumption was 7.7MB. Max. memory is 16.1GB. [2022-07-22 03:14:18,015 INFO L158 Benchmark]: Boogie Preprocessor took 43.92ms. Allocated memory is still 58.7MB. Free memory was 41.1MB in the beginning and 39.3MB in the end (delta: 1.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-07-22 03:14:18,015 INFO L158 Benchmark]: RCFGBuilder took 496.24ms. Allocated memory is still 58.7MB. Free memory was 39.3MB in the beginning and 38.1MB in the end (delta: 1.2MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. [2022-07-22 03:14:18,016 INFO L158 Benchmark]: BuchiAutomizer took 635.59ms. Allocated memory was 58.7MB in the beginning and 77.6MB in the end (delta: 18.9MB). Free memory was 38.1MB in the beginning and 50.6MB in the end (delta: -12.5MB). Peak memory consumption was 18.5MB. Max. memory is 16.1GB. [2022-07-22 03:14:18,016 INFO L158 Benchmark]: Witness Printer took 28.35ms. Allocated memory is still 77.6MB. Free memory was 50.6MB in the beginning and 49.0MB in the end (delta: 1.7MB). There was no memory consumed. Max. memory is 16.1GB. [2022-07-22 03:14:18,019 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.18ms. Allocated memory is still 48.2MB. Free memory was 29.7MB in the beginning and 29.7MB in the end (delta: 44.5kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 483.80ms. Allocated memory was 48.2MB in the beginning and 58.7MB in the end (delta: 10.5MB). Free memory was 32.7MB in the beginning and 30.6MB in the end (delta: 2.2MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 56.28ms. Allocated memory is still 58.7MB. Free memory was 30.6MB in the beginning and 41.1MB in the end (delta: -10.6MB). Peak memory consumption was 7.7MB. Max. memory is 16.1GB. * Boogie Preprocessor took 43.92ms. Allocated memory is still 58.7MB. Free memory was 41.1MB in the beginning and 39.3MB in the end (delta: 1.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 496.24ms. Allocated memory is still 58.7MB. Free memory was 39.3MB in the beginning and 38.1MB in the end (delta: 1.2MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. * BuchiAutomizer took 635.59ms. Allocated memory was 58.7MB in the beginning and 77.6MB in the end (delta: 18.9MB). Free memory was 38.1MB in the beginning and 50.6MB in the end (delta: -12.5MB). Peak memory consumption was 18.5MB. Max. memory is 16.1GB. * Witness Printer took 28.35ms. Allocated memory is still 77.6MB. Free memory was 50.6MB in the beginning and 49.0MB in the end (delta: 1.7MB). There was no memory consumed. 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 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 42 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 0.5s and 2 iterations. TraceHistogramMax:1. Analysis of lassos took 0.4s. 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 -1 states and ocurred in iteration -1. Nontrivial modules had stage [0, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 0 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 0 mSDsluCounter, 63 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 0 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 0 IncrementalHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 0 mSolverCounterUnsat, 63 mSDtfsCounter, 0 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown 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 InitialAbstractionConstructionTime: 0.0s - TerminationAnalysisResult: Nontermination possible Buchi Automizer proved that your program is nonterminating for some inputs - FixpointNonTerminationResult [Line: 725]: Nontermination argument in form of an infinite program execution. Nontermination argument in form of an infinite execution State at position 0 is {NULL=1} State at position 1 is {next=0, NULL=0, next=0, end_point=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTArraySubscriptExpression@52b5e3c3=0, NULL=1, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@74d58dd2=0, \result=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@26af0849=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@7e19c88f=5, cursor=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@68aee07=0, NULL=0, list=3, org.eclipse.cdt.internal.core.dom.parser.c.CASTArraySubscriptExpression@1eb86373=0, cursor=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@63e739da=0, list=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTArraySubscriptExpression@1eb86373=0, direction=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTArraySubscriptExpression@52b5e3c3=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@418183ff=0} - StatisticsResult: NonterminationArgumentStatistics Fixpoint - NonterminatingLassoResult [Line: 725]: Nonterminating execution Found a nonterminating execution for the following lasso shaped sequence of statements. Stem: [L724] static list_t list; Loop: [L725] COND TRUE __VERIFIER_nondet_int() [L726] COND FALSE !(__VERIFIER_nondet_int()) [L728] COND FALSE !(__VERIFIER_nondet_int()) End of lasso representation. RESULT: Ultimate proved your program to be incorrect! [2022-07-22 03:14:18,053 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE(TERM)