./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/memsafety/test-0217.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 57096758 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_da7e6385-badd-484d-8339-358abc4eec21/bin/uautomizer-hJ6jxDFKc3/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_da7e6385-badd-484d-8339-358abc4eec21/bin/uautomizer-hJ6jxDFKc3/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_da7e6385-badd-484d-8339-358abc4eec21/bin/uautomizer-hJ6jxDFKc3/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_da7e6385-badd-484d-8339-358abc4eec21/bin/uautomizer-hJ6jxDFKc3/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/memsafety/test-0217.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_da7e6385-badd-484d-8339-358abc4eec21/bin/uautomizer-hJ6jxDFKc3/config/svcomp-Termination-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_da7e6385-badd-484d-8339-358abc4eec21/bin/uautomizer-hJ6jxDFKc3 --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 02ceabdf8a143ae2afc1cae1911c9d527c00da00 ................................................................................................................................................................................................................................................................................................................................................. Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE(TERM) --- Real Ultimate output --- This is Ultimate 0.2.1-dev-5709675 [2021-10-15 19:09:58,181 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-15 19:09:58,185 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-15 19:09:58,254 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-15 19:09:58,255 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-15 19:09:58,260 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-15 19:09:58,263 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-15 19:09:58,268 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-15 19:09:58,271 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-15 19:09:58,278 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-15 19:09:58,280 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-15 19:09:58,283 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-15 19:09:58,283 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-15 19:09:58,287 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-15 19:09:58,290 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-15 19:09:58,296 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-15 19:09:58,299 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-15 19:09:58,300 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-15 19:09:58,308 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-15 19:09:58,317 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-15 19:09:58,320 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-15 19:09:58,322 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-15 19:09:58,326 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-15 19:09:58,328 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-15 19:09:58,340 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-15 19:09:58,340 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-15 19:09:58,341 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-15 19:09:58,344 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-15 19:09:58,345 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-15 19:09:58,347 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-15 19:09:58,348 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-15 19:09:58,349 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-15 19:09:58,352 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-15 19:09:58,354 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-15 19:09:58,356 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-15 19:09:58,357 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-15 19:09:58,358 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-15 19:09:58,358 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-15 19:09:58,359 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-15 19:09:58,360 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-15 19:09:58,362 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-15 19:09:58,363 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_da7e6385-badd-484d-8339-358abc4eec21/bin/uautomizer-hJ6jxDFKc3/config/svcomp-Termination-32bit-Automizer_Default.epf [2021-10-15 19:09:58,423 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-15 19:09:58,426 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-15 19:09:58,426 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-10-15 19:09:58,427 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-10-15 19:09:58,429 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-10-15 19:09:58,429 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-10-15 19:09:58,429 INFO L138 SettingsManager]: * Use SBE=true [2021-10-15 19:09:58,430 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2021-10-15 19:09:58,430 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2021-10-15 19:09:58,430 INFO L138 SettingsManager]: * Use old map elimination=false [2021-10-15 19:09:58,432 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2021-10-15 19:09:58,432 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2021-10-15 19:09:58,432 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2021-10-15 19:09:58,433 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-15 19:09:58,433 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-15 19:09:58,433 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-10-15 19:09:58,434 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-15 19:09:58,434 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-15 19:09:58,434 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-15 19:09:58,435 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2021-10-15 19:09:58,435 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2021-10-15 19:09:58,435 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2021-10-15 19:09:58,435 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-15 19:09:58,436 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-15 19:09:58,436 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2021-10-15 19:09:58,436 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-15 19:09:58,438 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2021-10-15 19:09:58,439 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-15 19:09:58,439 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-10-15 19:09:58,439 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-15 19:09:58,440 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-10-15 19:09:58,440 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-15 19:09:58,442 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2021-10-15 19:09:58,442 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:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_da7e6385-badd-484d-8339-358abc4eec21/bin/uautomizer-hJ6jxDFKc3/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_da7e6385-badd-484d-8339-358abc4eec21/bin/uautomizer-hJ6jxDFKc3 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 02ceabdf8a143ae2afc1cae1911c9d527c00da00 [2021-10-15 19:09:58,743 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-15 19:09:58,779 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-15 19:09:58,783 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-15 19:09:58,784 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-15 19:09:58,786 INFO L275 PluginConnector]: CDTParser initialized [2021-10-15 19:09:58,787 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_da7e6385-badd-484d-8339-358abc4eec21/bin/uautomizer-hJ6jxDFKc3/../../sv-benchmarks/c/memsafety/test-0217.i [2021-10-15 19:09:58,865 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_da7e6385-badd-484d-8339-358abc4eec21/bin/uautomizer-hJ6jxDFKc3/data/0b384e0a9/ee05e315815c4b908c9278d922eaa0c7/FLAG37b5560d4 [2021-10-15 19:09:59,560 INFO L306 CDTParser]: Found 1 translation units. [2021-10-15 19:09:59,560 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_da7e6385-badd-484d-8339-358abc4eec21/sv-benchmarks/c/memsafety/test-0217.i [2021-10-15 19:09:59,584 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_da7e6385-badd-484d-8339-358abc4eec21/bin/uautomizer-hJ6jxDFKc3/data/0b384e0a9/ee05e315815c4b908c9278d922eaa0c7/FLAG37b5560d4 [2021-10-15 19:09:59,766 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_da7e6385-badd-484d-8339-358abc4eec21/bin/uautomizer-hJ6jxDFKc3/data/0b384e0a9/ee05e315815c4b908c9278d922eaa0c7 [2021-10-15 19:09:59,769 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-15 19:09:59,772 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-15 19:09:59,780 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-15 19:09:59,780 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-15 19:09:59,784 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-15 19:09:59,785 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.10 07:09:59" (1/1) ... [2021-10-15 19:09:59,786 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@59d5bc23 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 07:09:59, skipping insertion in model container [2021-10-15 19:09:59,786 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.10 07:09:59" (1/1) ... [2021-10-15 19:09:59,795 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-15 19:09:59,852 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-15 19:10:00,368 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-15 19:10:00,388 INFO L203 MainTranslator]: Completed pre-run [2021-10-15 19:10:00,475 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-15 19:10:00,523 INFO L208 MainTranslator]: Completed translation [2021-10-15 19:10:00,524 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 07:10:00 WrapperNode [2021-10-15 19:10:00,524 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-15 19:10:00,525 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-15 19:10:00,525 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-15 19:10:00,526 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-15 19:10:00,535 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 07:10:00" (1/1) ... [2021-10-15 19:10:00,574 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 07:10:00" (1/1) ... [2021-10-15 19:10:00,647 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-15 19:10:00,649 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-15 19:10:00,650 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-15 19:10:00,650 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-15 19:10:00,661 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 07:10:00" (1/1) ... [2021-10-15 19:10:00,661 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 07:10:00" (1/1) ... [2021-10-15 19:10:00,686 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 07:10:00" (1/1) ... [2021-10-15 19:10:00,687 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 07:10:00" (1/1) ... [2021-10-15 19:10:00,704 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 07:10:00" (1/1) ... [2021-10-15 19:10:00,722 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 07:10:00" (1/1) ... [2021-10-15 19:10:00,730 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 07:10:00" (1/1) ... [2021-10-15 19:10:00,737 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-15 19:10:00,748 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-15 19:10:00,749 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-15 19:10:00,749 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-15 19:10:00,752 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 07:10:00" (1/1) ... [2021-10-15 19:10:00,763 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-15 19:10:00,776 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_da7e6385-badd-484d-8339-358abc4eec21/bin/uautomizer-hJ6jxDFKc3/z3 [2021-10-15 19:10:00,792 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_da7e6385-badd-484d-8339-358abc4eec21/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-15 19:10:00,803 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_da7e6385-badd-484d-8339-358abc4eec21/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2021-10-15 19:10:00,840 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-10-15 19:10:00,841 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2021-10-15 19:10:00,841 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2021-10-15 19:10:00,841 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-10-15 19:10:00,841 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-10-15 19:10:00,841 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-15 19:10:00,842 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-10-15 19:10:00,842 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-10-15 19:10:00,842 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-10-15 19:10:00,842 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-10-15 19:10:00,842 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-15 19:10:00,843 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-15 19:10:01,035 WARN L805 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2021-10-15 19:10:01,553 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-15 19:10:01,554 INFO L299 CfgBuilder]: Removed 21 assume(true) statements. [2021-10-15 19:10:01,556 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 07:10:01 BoogieIcfgContainer [2021-10-15 19:10:01,556 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-15 19:10:01,558 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2021-10-15 19:10:01,558 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2021-10-15 19:10:01,569 INFO L275 PluginConnector]: BuchiAutomizer initialized [2021-10-15 19:10:01,570 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-10-15 19:10:01,571 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 15.10 07:09:59" (1/3) ... [2021-10-15 19:10:01,573 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@2e0cf032 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 15.10 07:10:01, skipping insertion in model container [2021-10-15 19:10:01,573 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-10-15 19:10:01,573 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 07:10:00" (2/3) ... [2021-10-15 19:10:01,574 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@2e0cf032 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 15.10 07:10:01, skipping insertion in model container [2021-10-15 19:10:01,574 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-10-15 19:10:01,574 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 07:10:01" (3/3) ... [2021-10-15 19:10:01,576 INFO L389 chiAutomizerObserver]: Analyzing ICFG test-0217.i [2021-10-15 19:10:01,656 INFO L359 BuchiCegarLoop]: Interprodecural is true [2021-10-15 19:10:01,656 INFO L360 BuchiCegarLoop]: Hoare is false [2021-10-15 19:10:01,656 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2021-10-15 19:10:01,657 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2021-10-15 19:10:01,657 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-10-15 19:10:01,657 INFO L364 BuchiCegarLoop]: Difference is false [2021-10-15 19:10:01,657 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-10-15 19:10:01,657 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2021-10-15 19:10:01,685 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 52 states, 49 states have (on average 1.5510204081632653) internal successors, (76), 49 states have internal predecessors, (76), 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) [2021-10-15 19:10:01,724 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 39 [2021-10-15 19:10:01,725 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-15 19:10:01,725 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-15 19:10:01,732 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1] [2021-10-15 19:10:01,732 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2021-10-15 19:10:01,732 INFO L425 BuchiCegarLoop]: ======== Iteration 1============ [2021-10-15 19:10:01,733 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 52 states, 49 states have (on average 1.5510204081632653) internal successors, (76), 49 states have internal predecessors, (76), 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) [2021-10-15 19:10:01,739 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 39 [2021-10-15 19:10:01,739 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-15 19:10:01,739 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-15 19:10:01,739 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1] [2021-10-15 19:10:01,740 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2021-10-15 19:10:01,747 INFO L791 eck$LassoCheckResult]: Stem: 41#ULTIMATE.startENTRYtrue #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string0.base, #t~string0.offset := #Ultimate.allocOnStack(2);call write~init~int(48, #t~string0.base, #t~string0.offset, 1);call write~init~int(0, #t~string0.base, 1 + #t~string0.offset, 1);call #t~string1.base, #t~string1.offset := #Ultimate.allocOnStack(12);call ~#list~0.base, ~#list~0.offset := #Ultimate.allocOnStack(8);call write~init~$Pointer$(0, 0, ~#list~0.base, ~#list~0.offset, 4);call write~init~$Pointer$(0, 0, ~#list~0.base, 4 + ~#list~0.offset, 4); 28#L-1true havoc main_#res;havoc main_#t~ret33, main_#t~nondet32, main_#t~ret35, main_#t~nondet34, main_#t~nondet31, main_#t~nondet36, main_#t~mem37.base, main_#t~mem37.offset, main_#t~mem38.base, main_#t~mem38.offset, main_~next~1.base, main_~next~1.offset, main_~end_point~0, main_~direction~0, main_~cursor~1.base, main_~cursor~1.offset; 30#L732-2true [2021-10-15 19:10:01,747 INFO L793 eck$LassoCheckResult]: Loop: 30#L732-2true assume !!(0 != main_#t~nondet31);havoc main_#t~nondet31; 40#L730-2true assume !true; 48#L732-1true assume !true; 30#L732-2true [2021-10-15 19:10:01,753 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-15 19:10:01,753 INFO L82 PathProgramCache]: Analyzing trace with hash 1251, now seen corresponding path program 1 times [2021-10-15 19:10:01,765 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-15 19:10:01,766 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1078769528] [2021-10-15 19:10:01,766 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-15 19:10:01,767 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-15 19:10:01,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-15 19:10:01,900 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-15 19:10:01,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-15 19:10:01,947 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-15 19:10:01,951 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-15 19:10:01,951 INFO L82 PathProgramCache]: Analyzing trace with hash 52490, now seen corresponding path program 1 times [2021-10-15 19:10:01,951 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-15 19:10:01,952 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1105013058] [2021-10-15 19:10:01,952 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-15 19:10:01,952 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-15 19:10:01,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-15 19:10:02,023 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-15 19:10:02,023 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-15 19:10:02,024 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1105013058] [2021-10-15 19:10:02,025 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1105013058] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-15 19:10:02,025 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-15 19:10:02,025 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-10-15 19:10:02,026 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2134311804] [2021-10-15 19:10:02,032 INFO L808 eck$LassoCheckResult]: loop already infeasible [2021-10-15 19:10:02,033 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-15 19:10:02,051 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-10-15 19:10:02,052 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-10-15 19:10:02,055 INFO L87 Difference]: Start difference. First operand has 52 states, 49 states have (on average 1.5510204081632653) internal successors, (76), 49 states have internal predecessors, (76), 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) [2021-10-15 19:10:02,068 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-15 19:10:02,068 INFO L93 Difference]: Finished difference Result 52 states and 72 transitions. [2021-10-15 19:10:02,069 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-10-15 19:10:02,071 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 52 states and 72 transitions. [2021-10-15 19:10:02,075 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 39 [2021-10-15 19:10:02,081 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 52 states to 48 states and 68 transitions. [2021-10-15 19:10:02,083 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 48 [2021-10-15 19:10:02,083 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 48 [2021-10-15 19:10:02,084 INFO L73 IsDeterministic]: Start isDeterministic. Operand 48 states and 68 transitions. [2021-10-15 19:10:02,085 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-15 19:10:02,085 INFO L681 BuchiCegarLoop]: Abstraction has 48 states and 68 transitions. [2021-10-15 19:10:02,102 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 48 states and 68 transitions. [2021-10-15 19:10:02,114 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 48 to 48. [2021-10-15 19:10:02,115 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 48 states, 46 states have (on average 1.434782608695652) internal successors, (66), 45 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) [2021-10-15 19:10:02,117 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 48 states to 48 states and 68 transitions. [2021-10-15 19:10:02,118 INFO L704 BuchiCegarLoop]: Abstraction has 48 states and 68 transitions. [2021-10-15 19:10:02,119 INFO L587 BuchiCegarLoop]: Abstraction has 48 states and 68 transitions. [2021-10-15 19:10:02,119 INFO L425 BuchiCegarLoop]: ======== Iteration 2============ [2021-10-15 19:10:02,119 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 48 states and 68 transitions. [2021-10-15 19:10:02,122 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 39 [2021-10-15 19:10:02,122 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-15 19:10:02,122 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-15 19:10:02,122 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1] [2021-10-15 19:10:02,123 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2021-10-15 19:10:02,123 INFO L791 eck$LassoCheckResult]: Stem: 149#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string0.base, #t~string0.offset := #Ultimate.allocOnStack(2);call write~init~int(48, #t~string0.base, #t~string0.offset, 1);call write~init~int(0, #t~string0.base, 1 + #t~string0.offset, 1);call #t~string1.base, #t~string1.offset := #Ultimate.allocOnStack(12);call ~#list~0.base, ~#list~0.offset := #Ultimate.allocOnStack(8);call write~init~$Pointer$(0, 0, ~#list~0.base, ~#list~0.offset, 4);call write~init~$Pointer$(0, 0, ~#list~0.base, 4 + ~#list~0.offset, 4); 116#L-1 havoc main_#res;havoc main_#t~ret33, main_#t~nondet32, main_#t~ret35, main_#t~nondet34, main_#t~nondet31, main_#t~nondet36, main_#t~mem37.base, main_#t~mem37.offset, main_#t~mem38.base, main_#t~mem38.offset, main_~next~1.base, main_~next~1.offset, main_~end_point~0, main_~direction~0, main_~cursor~1.base, main_~cursor~1.offset; 117#L732-2 [2021-10-15 19:10:02,123 INFO L793 eck$LassoCheckResult]: Loop: 117#L732-2 assume !!(0 != main_#t~nondet31);havoc main_#t~nondet31; 122#L730-2 assume !(0 != main_#t~nondet32);havoc main_#t~nondet32; 147#L732-1 assume !(0 != main_#t~nondet34);havoc main_#t~nondet34; 117#L732-2 [2021-10-15 19:10:02,124 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-15 19:10:02,124 INFO L82 PathProgramCache]: Analyzing trace with hash 1251, now seen corresponding path program 2 times [2021-10-15 19:10:02,124 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-15 19:10:02,125 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1346769487] [2021-10-15 19:10:02,125 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-15 19:10:02,125 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-15 19:10:02,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-15 19:10:02,145 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-15 19:10:02,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-15 19:10:02,168 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-15 19:10:02,169 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-15 19:10:02,169 INFO L82 PathProgramCache]: Analyzing trace with hash 49962, now seen corresponding path program 1 times [2021-10-15 19:10:02,169 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-15 19:10:02,170 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1781062323] [2021-10-15 19:10:02,170 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-15 19:10:02,170 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-15 19:10:02,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-15 19:10:02,178 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-15 19:10:02,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-15 19:10:02,184 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-15 19:10:02,185 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-15 19:10:02,185 INFO L82 PathProgramCache]: Analyzing trace with hash 37288712, now seen corresponding path program 1 times [2021-10-15 19:10:02,186 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-15 19:10:02,190 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [844628929] [2021-10-15 19:10:02,190 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-15 19:10:02,191 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-15 19:10:02,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-15 19:10:02,224 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-15 19:10:02,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-15 19:10:02,251 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-15 19:10:02,778 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 15.10 07:10:02 BoogieIcfgContainer [2021-10-15 19:10:02,778 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2021-10-15 19:10:02,779 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-15 19:10:02,779 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-15 19:10:02,780 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-15 19:10:02,780 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 07:10:01" (3/4) ... [2021-10-15 19:10:02,783 INFO L134 WitnessPrinter]: Generating witness for non-termination counterexample [2021-10-15 19:10:02,820 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_da7e6385-badd-484d-8339-358abc4eec21/bin/uautomizer-hJ6jxDFKc3/witness.graphml [2021-10-15 19:10:02,820 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-15 19:10:02,823 INFO L168 Benchmark]: Toolchain (without parser) took 3049.05 ms. Allocated memory was 102.8 MB in the beginning and 127.9 MB in the end (delta: 25.2 MB). Free memory was 69.5 MB in the beginning and 90.3 MB in the end (delta: -20.8 MB). Peak memory consumption was 4.8 MB. Max. memory is 16.1 GB. [2021-10-15 19:10:02,823 INFO L168 Benchmark]: CDTParser took 0.35 ms. Allocated memory is still 102.8 MB. Free memory is still 56.7 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-10-15 19:10:02,824 INFO L168 Benchmark]: CACSL2BoogieTranslator took 744.59 ms. Allocated memory is still 102.8 MB. Free memory was 69.3 MB in the beginning and 65.6 MB in the end (delta: 3.7 MB). Peak memory consumption was 6.3 MB. Max. memory is 16.1 GB. [2021-10-15 19:10:02,825 INFO L168 Benchmark]: Boogie Procedure Inliner took 123.58 ms. Allocated memory is still 102.8 MB. Free memory was 65.6 MB in the beginning and 63.1 MB in the end (delta: 2.5 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-15 19:10:02,826 INFO L168 Benchmark]: Boogie Preprocessor took 98.09 ms. Allocated memory is still 102.8 MB. Free memory was 62.9 MB in the beginning and 60.8 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-15 19:10:02,827 INFO L168 Benchmark]: RCFGBuilder took 808.22 ms. Allocated memory was 102.8 MB in the beginning and 127.9 MB in the end (delta: 25.2 MB). Free memory was 60.8 MB in the beginning and 98.3 MB in the end (delta: -37.5 MB). Peak memory consumption was 24.8 MB. Max. memory is 16.1 GB. [2021-10-15 19:10:02,828 INFO L168 Benchmark]: BuchiAutomizer took 1220.67 ms. Allocated memory is still 127.9 MB. Free memory was 98.3 MB in the beginning and 91.4 MB in the end (delta: 6.9 MB). Peak memory consumption was 37.7 MB. Max. memory is 16.1 GB. [2021-10-15 19:10:02,829 INFO L168 Benchmark]: Witness Printer took 41.44 ms. Allocated memory is still 127.9 MB. Free memory was 91.4 MB in the beginning and 90.3 MB in the end (delta: 1.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-15 19:10:02,833 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.35 ms. Allocated memory is still 102.8 MB. Free memory is still 56.7 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 744.59 ms. Allocated memory is still 102.8 MB. Free memory was 69.3 MB in the beginning and 65.6 MB in the end (delta: 3.7 MB). Peak memory consumption was 6.3 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 123.58 ms. Allocated memory is still 102.8 MB. Free memory was 65.6 MB in the beginning and 63.1 MB in the end (delta: 2.5 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 98.09 ms. Allocated memory is still 102.8 MB. Free memory was 62.9 MB in the beginning and 60.8 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 808.22 ms. Allocated memory was 102.8 MB in the beginning and 127.9 MB in the end (delta: 25.2 MB). Free memory was 60.8 MB in the beginning and 98.3 MB in the end (delta: -37.5 MB). Peak memory consumption was 24.8 MB. Max. memory is 16.1 GB. * BuchiAutomizer took 1220.67 ms. Allocated memory is still 127.9 MB. Free memory was 98.3 MB in the beginning and 91.4 MB in the end (delta: 6.9 MB). Peak memory consumption was 37.7 MB. Max. memory is 16.1 GB. * Witness Printer took 41.44 ms. Allocated memory is still 127.9 MB. Free memory was 91.4 MB in the beginning and 90.3 MB in the end (delta: 1.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 1 terminating modules (1 trivial, 0 deterministic, 0 nondeterministic) and one nonterminating remainder module.1 modules have a trivial ranking function, the largest among these consists of 2 locations. The remainder module has 48 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 1.1s and 2 iterations. TraceHistogramMax:1. Analysis of lassos took 0.9s. Construction of modules took 0.0s. Büchi inclusion checks took 0.0s. Highest rank in rank-based complementation 0. Minimization of det autom 1. Minimization of nondet autom 0. Automata minimization 18.5ms AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 48 states and ocurred in iteration 1. Nontrivial modules had stage [0, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 72 SDtfs, 0 SDslu, 0 SDs, 0 SdLazy, 0 SolverSat, 0 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0ms Time LassoAnalysisResults: nont1 unkn0 SFLI1 SFLT0 conc0 concLT0 SILN0 SILU0 SILI0 SILT0 lasso0 LassoPreprocessingBenchmarks: LassoTerminationAnalysisBenchmarks: not availableLassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 0 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 0 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.0s - TerminationAnalysisResult: Nontermination possible Buchi Automizer proved that your program is nonterminating for some inputs - FixpointNonTerminationResult [Line: 729]: Nontermination argument in form of an infinite program execution. Nontermination argument in form of an infinite execution State at position 0 is {NULL=2655} State at position 1 is {cursor=0, NULL=0, NULL=2657, \result=0, NULL=2655, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@5c6955ca=17, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@5e6868ea=0, list=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTArraySubscriptExpression@1e76b606=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTArraySubscriptExpression@1e76b606=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTArraySubscriptExpression@694b4482=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@402d20e4=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@2de6e689=0, NULL=0, NULL=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@3a9f44aa=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@6a2f2ae9=0, end_point=0, NULL=2656, NULL=0, list=2658, org.eclipse.cdt.internal.core.dom.parser.c.CASTArraySubscriptExpression@694b4482=0, next=0, next=0, cursor=0, direction=0} - StatisticsResult: NonterminationArgumentStatistics Fixpoint - NonterminatingLassoResult [Line: 729]: Nonterminating execution Found a nonterminating execution for the following lasso shaped sequence of statements. Stem: [L728] static list_t list; Loop: [L729] COND TRUE __VERIFIER_nondet_int() [L730] COND FALSE !(__VERIFIER_nondet_int()) [L732] COND FALSE !(__VERIFIER_nondet_int()) End of lasso representation. RESULT: Ultimate proved your program to be incorrect! [2021-10-15 19:10:02,899 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_da7e6385-badd-484d-8339-358abc4eec21/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...