./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 f4b24e32 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-?-f4b24e3 [2022-07-14 16:34:08,009 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-07-14 16:34:08,010 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-07-14 16:34:08,029 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-07-14 16:34:08,030 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-07-14 16:34:08,031 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-07-14 16:34:08,034 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-07-14 16:34:08,036 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-07-14 16:34:08,039 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-07-14 16:34:08,040 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-07-14 16:34:08,041 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-07-14 16:34:08,043 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-07-14 16:34:08,043 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-07-14 16:34:08,046 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-07-14 16:34:08,047 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-07-14 16:34:08,048 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-07-14 16:34:08,049 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-07-14 16:34:08,051 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-07-14 16:34:08,052 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-07-14 16:34:08,054 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-07-14 16:34:08,056 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-07-14 16:34:08,057 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-07-14 16:34:08,057 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-07-14 16:34:08,058 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-07-14 16:34:08,059 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-07-14 16:34:08,063 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-07-14 16:34:08,066 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-07-14 16:34:08,066 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-07-14 16:34:08,067 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-07-14 16:34:08,067 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-07-14 16:34:08,068 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-07-14 16:34:08,068 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-07-14 16:34:08,069 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-07-14 16:34:08,070 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-07-14 16:34:08,070 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-07-14 16:34:08,071 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-07-14 16:34:08,072 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-07-14 16:34:08,072 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-07-14 16:34:08,073 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-07-14 16:34:08,073 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-07-14 16:34:08,073 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-07-14 16:34:08,075 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-07-14 16:34:08,076 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-32bit-Automizer_Default.epf [2022-07-14 16:34:08,097 INFO L113 SettingsManager]: Loading preferences was successful [2022-07-14 16:34:08,098 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-07-14 16:34:08,098 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-07-14 16:34:08,098 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-07-14 16:34:08,099 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-07-14 16:34:08,100 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-07-14 16:34:08,100 INFO L138 SettingsManager]: * Use SBE=true [2022-07-14 16:34:08,100 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2022-07-14 16:34:08,100 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2022-07-14 16:34:08,101 INFO L138 SettingsManager]: * Use old map elimination=false [2022-07-14 16:34:08,101 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2022-07-14 16:34:08,101 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2022-07-14 16:34:08,101 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2022-07-14 16:34:08,101 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-07-14 16:34:08,101 INFO L138 SettingsManager]: * sizeof long=4 [2022-07-14 16:34:08,102 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-07-14 16:34:08,102 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-07-14 16:34:08,102 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-07-14 16:34:08,102 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-07-14 16:34:08,102 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2022-07-14 16:34:08,102 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2022-07-14 16:34:08,103 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2022-07-14 16:34:08,103 INFO L138 SettingsManager]: * sizeof long double=12 [2022-07-14 16:34:08,103 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-07-14 16:34:08,103 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2022-07-14 16:34:08,103 INFO L138 SettingsManager]: * Use constant arrays=true [2022-07-14 16:34:08,103 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2022-07-14 16:34:08,103 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-07-14 16:34:08,104 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-07-14 16:34:08,104 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-07-14 16:34:08,104 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-07-14 16:34:08,105 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2022-07-14 16:34:08,105 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 3f6f146d76d903376288fe056dbbc9e1a8443f92d5e8b82343734efc8a9842e4 [2022-07-14 16:34:08,284 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-07-14 16:34:08,296 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-07-14 16:34:08,297 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-07-14 16:34:08,298 INFO L271 PluginConnector]: Initializing CDTParser... [2022-07-14 16:34:08,299 INFO L275 PluginConnector]: CDTParser initialized [2022-07-14 16:34:08,299 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/memsafety/test-0214.i [2022-07-14 16:34:08,340 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0b2bd3930/694205e1135241d5a772ccea3dcc5039/FLAGd1fdfd5be [2022-07-14 16:34:08,701 INFO L306 CDTParser]: Found 1 translation units. [2022-07-14 16:34:08,704 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/memsafety/test-0214.i [2022-07-14 16:34:08,744 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0b2bd3930/694205e1135241d5a772ccea3dcc5039/FLAGd1fdfd5be [2022-07-14 16:34:09,075 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0b2bd3930/694205e1135241d5a772ccea3dcc5039 [2022-07-14 16:34:09,078 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-07-14 16:34:09,079 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-07-14 16:34:09,081 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-07-14 16:34:09,081 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-07-14 16:34:09,083 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-07-14 16:34:09,083 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.07 04:34:09" (1/1) ... [2022-07-14 16:34:09,085 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3415ddf4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 04:34:09, skipping insertion in model container [2022-07-14 16:34:09,085 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.07 04:34:09" (1/1) ... [2022-07-14 16:34:09,090 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-07-14 16:34:09,137 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-14 16:34:09,384 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-14 16:34:09,405 INFO L203 MainTranslator]: Completed pre-run [2022-07-14 16:34:09,434 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-14 16:34:09,469 INFO L208 MainTranslator]: Completed translation [2022-07-14 16:34:09,470 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 04:34:09 WrapperNode [2022-07-14 16:34:09,470 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-07-14 16:34:09,471 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-07-14 16:34:09,471 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-07-14 16:34:09,471 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-07-14 16:34:09,476 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 04:34:09" (1/1) ... [2022-07-14 16:34:09,487 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 04:34:09" (1/1) ... [2022-07-14 16:34:09,507 INFO L137 Inliner]: procedures = 181, calls = 42, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 171 [2022-07-14 16:34:09,507 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-07-14 16:34:09,508 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-07-14 16:34:09,508 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-07-14 16:34:09,508 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-07-14 16:34:09,513 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 04:34:09" (1/1) ... [2022-07-14 16:34:09,513 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 04:34:09" (1/1) ... [2022-07-14 16:34:09,517 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 04:34:09" (1/1) ... [2022-07-14 16:34:09,517 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 04:34:09" (1/1) ... [2022-07-14 16:34:09,522 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 04:34:09" (1/1) ... [2022-07-14 16:34:09,528 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 04:34:09" (1/1) ... [2022-07-14 16:34:09,534 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 04:34:09" (1/1) ... [2022-07-14 16:34:09,536 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-07-14 16:34:09,543 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-07-14 16:34:09,543 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-07-14 16:34:09,543 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-07-14 16:34:09,544 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 04:34:09" (1/1) ... [2022-07-14 16:34:09,548 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-14 16:34:09,555 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-14 16:34:09,563 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) [2022-07-14 16:34:09,564 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 [2022-07-14 16:34:09,587 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-07-14 16:34:09,588 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2022-07-14 16:34:09,588 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2022-07-14 16:34:09,588 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-07-14 16:34:09,588 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-07-14 16:34:09,588 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-07-14 16:34:09,589 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-07-14 16:34:09,589 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-07-14 16:34:09,591 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-07-14 16:34:09,591 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-07-14 16:34:09,592 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-07-14 16:34:09,594 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-07-14 16:34:09,736 INFO L234 CfgBuilder]: Building ICFG [2022-07-14 16:34:09,740 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-07-14 16:34:09,742 WARN L811 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2022-07-14 16:34:10,014 INFO L275 CfgBuilder]: Performing block encoding [2022-07-14 16:34:10,020 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-07-14 16:34:10,021 INFO L299 CfgBuilder]: Removed 4 assume(true) statements. [2022-07-14 16:34:10,022 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.07 04:34:10 BoogieIcfgContainer [2022-07-14 16:34:10,022 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-07-14 16:34:10,023 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2022-07-14 16:34:10,023 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2022-07-14 16:34:10,025 INFO L275 PluginConnector]: BuchiAutomizer initialized [2022-07-14 16:34:10,026 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-07-14 16:34:10,026 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 14.07 04:34:09" (1/3) ... [2022-07-14 16:34:10,027 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@6f850856 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 14.07 04:34:10, skipping insertion in model container [2022-07-14 16:34:10,027 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-07-14 16:34:10,027 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 04:34:09" (2/3) ... [2022-07-14 16:34:10,028 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@6f850856 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 14.07 04:34:10, skipping insertion in model container [2022-07-14 16:34:10,028 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-07-14 16:34:10,028 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.07 04:34:10" (3/3) ... [2022-07-14 16:34:10,029 INFO L354 chiAutomizerObserver]: Analyzing ICFG test-0214.i [2022-07-14 16:34:10,073 INFO L255 stractBuchiCegarLoop]: Interprodecural is true [2022-07-14 16:34:10,073 INFO L256 stractBuchiCegarLoop]: Hoare is false [2022-07-14 16:34:10,073 INFO L257 stractBuchiCegarLoop]: Compute interpolants for ForwardPredicates [2022-07-14 16:34:10,073 INFO L258 stractBuchiCegarLoop]: Backedges is STRAIGHT_LINE [2022-07-14 16:34:10,073 INFO L259 stractBuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2022-07-14 16:34:10,074 INFO L260 stractBuchiCegarLoop]: Difference is false [2022-07-14 16:34:10,074 INFO L261 stractBuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2022-07-14 16:34:10,074 INFO L265 stractBuchiCegarLoop]: ======== Iteration 0 == of CEGAR loop == BuchiAutomatonCegarLoop ======== [2022-07-14 16:34:10,077 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) [2022-07-14 16:34:10,091 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 33 [2022-07-14 16:34:10,091 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-07-14 16:34:10,091 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-07-14 16:34:10,095 INFO L179 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1] [2022-07-14 16:34:10,096 INFO L180 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1] [2022-07-14 16:34:10,096 INFO L287 stractBuchiCegarLoop]: ======== Iteration 1 ============ [2022-07-14 16:34:10,096 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) [2022-07-14 16:34:10,098 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 33 [2022-07-14 16:34:10,098 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-07-14 16:34:10,099 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-07-14 16:34:10,099 INFO L179 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1] [2022-07-14 16:34:10,099 INFO L180 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1] [2022-07-14 16:34:10,103 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 [2022-07-14 16:34:10,104 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 [2022-07-14 16:34:10,107 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 16:34:10,107 INFO L85 PathProgramCache]: Analyzing trace with hash 1251, now seen corresponding path program 1 times [2022-07-14 16:34:10,113 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-14 16:34:10,113 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1695735412] [2022-07-14 16:34:10,113 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 16:34:10,114 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-14 16:34:10,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-14 16:34:10,168 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-07-14 16:34:10,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-14 16:34:10,197 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-07-14 16:34:10,199 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 16:34:10,199 INFO L85 PathProgramCache]: Analyzing trace with hash 51626, now seen corresponding path program 1 times [2022-07-14 16:34:10,199 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-14 16:34:10,199 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [342689084] [2022-07-14 16:34:10,200 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 16:34:10,200 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-14 16:34:10,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 16:34:10,227 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-14 16:34:10,228 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-14 16:34:10,228 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [342689084] [2022-07-14 16:34:10,228 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [342689084] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-14 16:34:10,229 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-14 16:34:10,229 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-07-14 16:34:10,229 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [163231816] [2022-07-14 16:34:10,230 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 16:34:10,233 INFO L769 eck$LassoCheckResult]: loop already infeasible [2022-07-14 16:34:10,235 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-14 16:34:10,256 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-07-14 16:34:10,257 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-07-14 16:34:10,258 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) [2022-07-14 16:34:10,267 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 16:34:10,268 INFO L93 Difference]: Finished difference Result 46 states and 63 transitions. [2022-07-14 16:34:10,268 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-07-14 16:34:10,272 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 46 states and 63 transitions. [2022-07-14 16:34:10,274 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 33 [2022-07-14 16:34:10,277 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 46 states to 42 states and 59 transitions. [2022-07-14 16:34:10,277 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 42 [2022-07-14 16:34:10,277 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 42 [2022-07-14 16:34:10,278 INFO L73 IsDeterministic]: Start isDeterministic. Operand 42 states and 59 transitions. [2022-07-14 16:34:10,278 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-07-14 16:34:10,278 INFO L369 hiAutomatonCegarLoop]: Abstraction has 42 states and 59 transitions. [2022-07-14 16:34:10,288 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 42 states and 59 transitions. [2022-07-14 16:34:10,293 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 42 to 42. [2022-07-14 16:34:10,294 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) [2022-07-14 16:34:10,295 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42 states to 42 states and 59 transitions. [2022-07-14 16:34:10,295 INFO L392 hiAutomatonCegarLoop]: Abstraction has 42 states and 59 transitions. [2022-07-14 16:34:10,295 INFO L374 stractBuchiCegarLoop]: Abstraction has 42 states and 59 transitions. [2022-07-14 16:34:10,296 INFO L287 stractBuchiCegarLoop]: ======== Iteration 2 ============ [2022-07-14 16:34:10,296 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 42 states and 59 transitions. [2022-07-14 16:34:10,297 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 33 [2022-07-14 16:34:10,297 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-07-14 16:34:10,297 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-07-14 16:34:10,297 INFO L179 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1] [2022-07-14 16:34:10,298 INFO L180 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1] [2022-07-14 16:34:10,298 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$(0, 0, ~#list~0.base, 4 + ~#list~0.offset, 4); 100#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret23#1, main_#t~nondet22#1, main_#t~ret25#1, main_#t~nondet24#1, main_#t~nondet21#1, main_#t~nondet26#1, main_#t~mem27#1.base, main_#t~mem27#1.offset, main_#t~mem28#1.base, main_#t~mem28#1.offset, main_~next~1#1.base, main_~next~1#1.offset, main_~end_point~0#1, main_~direction~0#1, main_~cursor~0#1.base, main_~cursor~0#1.offset; 101#L728-2 [2022-07-14 16:34:10,298 INFO L754 eck$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 [2022-07-14 16:34:10,298 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 16:34:10,298 INFO L85 PathProgramCache]: Analyzing trace with hash 1251, now seen corresponding path program 2 times [2022-07-14 16:34:10,299 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-14 16:34:10,299 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [385570387] [2022-07-14 16:34:10,299 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 16:34:10,299 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-14 16:34:10,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-14 16:34:10,306 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-07-14 16:34:10,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-14 16:34:10,312 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-07-14 16:34:10,313 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 16:34:10,313 INFO L85 PathProgramCache]: Analyzing trace with hash 49935, now seen corresponding path program 1 times [2022-07-14 16:34:10,313 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-14 16:34:10,314 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [962404325] [2022-07-14 16:34:10,314 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 16:34:10,314 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-14 16:34:10,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-14 16:34:10,320 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-07-14 16:34:10,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-14 16:34:10,323 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-07-14 16:34:10,323 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 16:34:10,323 INFO L85 PathProgramCache]: Analyzing trace with hash 37288685, now seen corresponding path program 1 times [2022-07-14 16:34:10,323 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-14 16:34:10,324 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1199112473] [2022-07-14 16:34:10,324 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 16:34:10,324 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-14 16:34:10,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-14 16:34:10,332 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-07-14 16:34:10,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-14 16:34:10,346 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-07-14 16:34:10,534 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 14.07 04:34:10 BoogieIcfgContainer [2022-07-14 16:34:10,534 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2022-07-14 16:34:10,534 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-07-14 16:34:10,534 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-07-14 16:34:10,535 INFO L275 PluginConnector]: Witness Printer initialized [2022-07-14 16:34:10,535 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.07 04:34:10" (3/4) ... [2022-07-14 16:34:10,536 INFO L134 WitnessPrinter]: Generating witness for non-termination counterexample [2022-07-14 16:34:10,565 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2022-07-14 16:34:10,566 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-07-14 16:34:10,566 INFO L158 Benchmark]: Toolchain (without parser) took 1487.17ms. Allocated memory was 94.4MB in the beginning and 119.5MB in the end (delta: 25.2MB). Free memory was 70.8MB in the beginning and 92.1MB in the end (delta: -21.3MB). Peak memory consumption was 51.8MB. Max. memory is 16.1GB. [2022-07-14 16:34:10,567 INFO L158 Benchmark]: CDTParser took 0.14ms. Allocated memory is still 94.4MB. Free memory is still 69.5MB. There was no memory consumed. Max. memory is 16.1GB. [2022-07-14 16:34:10,567 INFO L158 Benchmark]: CACSL2BoogieTranslator took 389.51ms. Allocated memory is still 94.4MB. Free memory was 70.5MB in the beginning and 50.2MB in the end (delta: 20.4MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. [2022-07-14 16:34:10,568 INFO L158 Benchmark]: Boogie Procedure Inliner took 36.64ms. Allocated memory is still 94.4MB. Free memory was 50.2MB in the beginning and 47.6MB in the end (delta: 2.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-07-14 16:34:10,571 INFO L158 Benchmark]: Boogie Preprocessor took 34.50ms. Allocated memory is still 94.4MB. Free memory was 47.6MB in the beginning and 45.8MB in the end (delta: 1.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-07-14 16:34:10,571 INFO L158 Benchmark]: RCFGBuilder took 479.10ms. Allocated memory was 94.4MB in the beginning and 119.5MB in the end (delta: 25.2MB). Free memory was 45.5MB in the beginning and 85.3MB in the end (delta: -39.8MB). Peak memory consumption was 17.2MB. Max. memory is 16.1GB. [2022-07-14 16:34:10,572 INFO L158 Benchmark]: BuchiAutomizer took 511.13ms. Allocated memory is still 119.5MB. Free memory was 85.3MB in the beginning and 46.9MB in the end (delta: 38.3MB). Peak memory consumption was 37.7MB. Max. memory is 16.1GB. [2022-07-14 16:34:10,573 INFO L158 Benchmark]: Witness Printer took 31.39ms. Allocated memory is still 119.5MB. Free memory was 46.9MB in the beginning and 92.1MB in the end (delta: -45.1MB). Peak memory consumption was 3.2MB. Max. memory is 16.1GB. [2022-07-14 16:34:10,574 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.14ms. Allocated memory is still 94.4MB. Free memory is still 69.5MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 389.51ms. Allocated memory is still 94.4MB. Free memory was 70.5MB in the beginning and 50.2MB in the end (delta: 20.4MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 36.64ms. Allocated memory is still 94.4MB. Free memory was 50.2MB in the beginning and 47.6MB in the end (delta: 2.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 34.50ms. Allocated memory is still 94.4MB. Free memory was 47.6MB in the beginning and 45.8MB in the end (delta: 1.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 479.10ms. Allocated memory was 94.4MB in the beginning and 119.5MB in the end (delta: 25.2MB). Free memory was 45.5MB in the beginning and 85.3MB in the end (delta: -39.8MB). Peak memory consumption was 17.2MB. Max. memory is 16.1GB. * BuchiAutomizer took 511.13ms. Allocated memory is still 119.5MB. Free memory was 85.3MB in the beginning and 46.9MB in the end (delta: 38.3MB). Peak memory consumption was 37.7MB. Max. memory is 16.1GB. * Witness Printer took 31.39ms. Allocated memory is still 119.5MB. Free memory was 46.9MB in the beginning and 92.1MB in the end (delta: -45.1MB). Peak memory consumption was 3.2MB. 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 0.4s and 2 iterations. TraceHistogramMax:1. Analysis of lassos took 0.3s. 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@74573afe=0, NULL=1, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@28e9b9de=0, \result=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@7b87f274=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@653b2909=5, cursor=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@28049bad=0, NULL=0, list=3, org.eclipse.cdt.internal.core.dom.parser.c.CASTArraySubscriptExpression@609277cc=0, cursor=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@1e614107=0, list=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTArraySubscriptExpression@609277cc=0, direction=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTArraySubscriptExpression@74573afe=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@3f4c65c6=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! [2022-07-14 16:34:10,603 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)