./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/termination-crafted/Arrays02-EquivalentConstantIndices.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 4e77c044 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a50738de-adfa-45d5-a481-2570534f37fc/bin/uautomizer-WNIpwEf4Nt/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a50738de-adfa-45d5-a481-2570534f37fc/bin/uautomizer-WNIpwEf4Nt/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a50738de-adfa-45d5-a481-2570534f37fc/bin/uautomizer-WNIpwEf4Nt/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a50738de-adfa-45d5-a481-2570534f37fc/bin/uautomizer-WNIpwEf4Nt/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/termination-crafted/Arrays02-EquivalentConstantIndices.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a50738de-adfa-45d5-a481-2570534f37fc/bin/uautomizer-WNIpwEf4Nt/config/svcomp-Termination-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a50738de-adfa-45d5-a481-2570534f37fc/bin/uautomizer-WNIpwEf4Nt --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 64bit --witnessprinter.graph.data.programhash 072df04afae5ae28487e0b8208c52f13961dea34 ................................................................................................................................................................................................................................................................................... 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-4e77c04 [2021-10-13 00:57:03,324 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-13 00:57:03,326 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-13 00:57:03,371 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-13 00:57:03,372 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-13 00:57:03,375 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-13 00:57:03,377 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-13 00:57:03,381 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-13 00:57:03,383 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-13 00:57:03,390 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-13 00:57:03,391 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-13 00:57:03,393 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-13 00:57:03,394 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-13 00:57:03,397 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-13 00:57:03,399 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-13 00:57:03,404 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-13 00:57:03,405 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-13 00:57:03,406 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-13 00:57:03,408 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-13 00:57:03,410 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-13 00:57:03,412 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-13 00:57:03,413 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-13 00:57:03,414 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-13 00:57:03,415 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-13 00:57:03,418 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-13 00:57:03,418 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-13 00:57:03,419 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-13 00:57:03,420 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-13 00:57:03,420 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-13 00:57:03,421 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-13 00:57:03,421 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-13 00:57:03,422 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-13 00:57:03,423 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-13 00:57:03,424 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-13 00:57:03,425 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-13 00:57:03,433 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-13 00:57:03,434 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-13 00:57:03,435 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-13 00:57:03,435 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-13 00:57:03,436 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-13 00:57:03,436 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-13 00:57:03,437 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a50738de-adfa-45d5-a481-2570534f37fc/bin/uautomizer-WNIpwEf4Nt/config/svcomp-Termination-64bit-Automizer_Default.epf [2021-10-13 00:57:03,481 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-13 00:57:03,481 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-13 00:57:03,482 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-10-13 00:57:03,482 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-10-13 00:57:03,483 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-10-13 00:57:03,483 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-10-13 00:57:03,483 INFO L138 SettingsManager]: * Use SBE=true [2021-10-13 00:57:03,483 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2021-10-13 00:57:03,484 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2021-10-13 00:57:03,484 INFO L138 SettingsManager]: * Use old map elimination=false [2021-10-13 00:57:03,484 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2021-10-13 00:57:03,484 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2021-10-13 00:57:03,484 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2021-10-13 00:57:03,485 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-13 00:57:03,485 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-10-13 00:57:03,485 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-13 00:57:03,485 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-13 00:57:03,498 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2021-10-13 00:57:03,498 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2021-10-13 00:57:03,499 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2021-10-13 00:57:03,499 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-13 00:57:03,499 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2021-10-13 00:57:03,499 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-13 00:57:03,500 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2021-10-13 00:57:03,500 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-13 00:57:03,500 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-10-13 00:57:03,501 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-13 00:57:03,502 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-10-13 00:57:03,502 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-13 00:57:03,503 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2021-10-13 00:57:03,503 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_a50738de-adfa-45d5-a481-2570534f37fc/bin/uautomizer-WNIpwEf4Nt/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a50738de-adfa-45d5-a481-2570534f37fc/bin/uautomizer-WNIpwEf4Nt Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 072df04afae5ae28487e0b8208c52f13961dea34 [2021-10-13 00:57:03,759 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-13 00:57:03,789 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-13 00:57:03,791 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-13 00:57:03,792 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-13 00:57:03,793 INFO L275 PluginConnector]: CDTParser initialized [2021-10-13 00:57:03,794 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a50738de-adfa-45d5-a481-2570534f37fc/bin/uautomizer-WNIpwEf4Nt/../../sv-benchmarks/c/termination-crafted/Arrays02-EquivalentConstantIndices.c [2021-10-13 00:57:03,883 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a50738de-adfa-45d5-a481-2570534f37fc/bin/uautomizer-WNIpwEf4Nt/data/2451aee0f/8827a6632a814fd3b62051b590ff43a1/FLAG905682a15 [2021-10-13 00:57:04,284 INFO L306 CDTParser]: Found 1 translation units. [2021-10-13 00:57:04,284 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a50738de-adfa-45d5-a481-2570534f37fc/sv-benchmarks/c/termination-crafted/Arrays02-EquivalentConstantIndices.c [2021-10-13 00:57:04,290 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a50738de-adfa-45d5-a481-2570534f37fc/bin/uautomizer-WNIpwEf4Nt/data/2451aee0f/8827a6632a814fd3b62051b590ff43a1/FLAG905682a15 [2021-10-13 00:57:04,308 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a50738de-adfa-45d5-a481-2570534f37fc/bin/uautomizer-WNIpwEf4Nt/data/2451aee0f/8827a6632a814fd3b62051b590ff43a1 [2021-10-13 00:57:04,317 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-13 00:57:04,319 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-13 00:57:04,323 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-13 00:57:04,323 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-13 00:57:04,326 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-13 00:57:04,327 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 12:57:04" (1/1) ... [2021-10-13 00:57:04,328 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@50fd68dd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:57:04, skipping insertion in model container [2021-10-13 00:57:04,328 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 12:57:04" (1/1) ... [2021-10-13 00:57:04,336 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-13 00:57:04,357 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-13 00:57:04,551 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-13 00:57:04,556 INFO L203 MainTranslator]: Completed pre-run [2021-10-13 00:57:04,610 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-13 00:57:04,634 INFO L208 MainTranslator]: Completed translation [2021-10-13 00:57:04,634 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:57:04 WrapperNode [2021-10-13 00:57:04,635 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-13 00:57:04,636 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-13 00:57:04,636 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-13 00:57:04,636 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-13 00:57:04,646 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:57:04" (1/1) ... [2021-10-13 00:57:04,653 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:57:04" (1/1) ... [2021-10-13 00:57:04,676 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-13 00:57:04,677 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-13 00:57:04,677 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-13 00:57:04,677 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-13 00:57:04,683 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:57:04" (1/1) ... [2021-10-13 00:57:04,684 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:57:04" (1/1) ... [2021-10-13 00:57:04,685 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:57:04" (1/1) ... [2021-10-13 00:57:04,685 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:57:04" (1/1) ... [2021-10-13 00:57:04,689 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:57:04" (1/1) ... [2021-10-13 00:57:04,692 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:57:04" (1/1) ... [2021-10-13 00:57:04,693 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:57:04" (1/1) ... [2021-10-13 00:57:04,695 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-13 00:57:04,695 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-13 00:57:04,696 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-13 00:57:04,696 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-13 00:57:04,697 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:57:04" (1/1) ... [2021-10-13 00:57:04,704 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 00:57:04,716 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a50738de-adfa-45d5-a481-2570534f37fc/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 00:57:04,727 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a50738de-adfa-45d5-a481-2570534f37fc/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 00:57:04,749 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a50738de-adfa-45d5-a481-2570534f37fc/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2021-10-13 00:57:04,773 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-10-13 00:57:04,773 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-13 00:57:04,773 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-13 00:57:04,773 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-10-13 00:57:04,774 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-13 00:57:04,774 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-10-13 00:57:04,914 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-13 00:57:04,914 INFO L299 CfgBuilder]: Removed 5 assume(true) statements. [2021-10-13 00:57:04,915 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 12:57:04 BoogieIcfgContainer [2021-10-13 00:57:04,915 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-13 00:57:04,916 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2021-10-13 00:57:04,916 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2021-10-13 00:57:04,919 INFO L275 PluginConnector]: BuchiAutomizer initialized [2021-10-13 00:57:04,919 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-10-13 00:57:04,919 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 13.10 12:57:04" (1/3) ... [2021-10-13 00:57:04,920 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@27fb7af1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 13.10 12:57:04, skipping insertion in model container [2021-10-13 00:57:04,921 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-10-13 00:57:04,921 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:57:04" (2/3) ... [2021-10-13 00:57:04,921 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@27fb7af1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 13.10 12:57:04, skipping insertion in model container [2021-10-13 00:57:04,921 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-10-13 00:57:04,921 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 12:57:04" (3/3) ... [2021-10-13 00:57:04,922 INFO L389 chiAutomizerObserver]: Analyzing ICFG Arrays02-EquivalentConstantIndices.c [2021-10-13 00:57:04,963 INFO L359 BuchiCegarLoop]: Interprodecural is true [2021-10-13 00:57:04,963 INFO L360 BuchiCegarLoop]: Hoare is false [2021-10-13 00:57:04,963 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2021-10-13 00:57:04,963 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2021-10-13 00:57:04,963 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-10-13 00:57:04,964 INFO L364 BuchiCegarLoop]: Difference is false [2021-10-13 00:57:04,964 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-10-13 00:57:04,964 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2021-10-13 00:57:04,977 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 8 states, 7 states have (on average 1.2857142857142858) internal successors, (9), 7 states have internal predecessors, (9), 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) [2021-10-13 00:57:05,007 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2021-10-13 00:57:05,007 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-13 00:57:05,008 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-13 00:57:05,013 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1] [2021-10-13 00:57:05,013 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2021-10-13 00:57:05,013 INFO L425 BuchiCegarLoop]: ======== Iteration 1============ [2021-10-13 00:57:05,013 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 8 states, 7 states have (on average 1.2857142857142858) internal successors, (9), 7 states have internal predecessors, (9), 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) [2021-10-13 00:57:05,015 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2021-10-13 00:57:05,015 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-13 00:57:05,015 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-13 00:57:05,016 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1] [2021-10-13 00:57:05,016 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2021-10-13 00:57:05,022 INFO L791 eck$LassoCheckResult]: Stem: 6#ULTIMATE.startENTRYtrue #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier; 8#L-1true havoc main_#res;havoc main_#t~nondet0, main_#t~mem2, main_#t~nondet3, main_#t~mem1, main_~#a~0.base, main_~#a~0.offset;call main_~#a~0.base, main_~#a~0.offset := #Ultimate.allocOnStack(4192);call write~int(main_#t~nondet0, main_~#a~0.base, 8 + main_~#a~0.offset, 4);havoc main_#t~nondet0; 7#L13-3true [2021-10-13 00:57:05,022 INFO L793 eck$LassoCheckResult]: Loop: 7#L13-3true call main_#t~mem1 := read~int(main_~#a~0.base, 8 + main_~#a~0.offset, 4); 4#L13-1true assume !!(main_#t~mem1 >= 0);havoc main_#t~mem1;call main_#t~mem2 := read~int(main_~#a~0.base, 8 + main_~#a~0.offset, 4);call write~int(main_#t~mem2 - 1, main_~#a~0.base, 8 + main_~#a~0.offset, 4);havoc main_#t~mem2;call write~int(main_#t~nondet3, main_~#a~0.base, 8 + main_~#a~0.offset, 4);havoc main_#t~nondet3; 7#L13-3true [2021-10-13 00:57:05,034 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 00:57:05,034 INFO L82 PathProgramCache]: Analyzing trace with hash 963, now seen corresponding path program 1 times [2021-10-13 00:57:05,043 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 00:57:05,043 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1793242921] [2021-10-13 00:57:05,044 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 00:57:05,045 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 00:57:05,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 00:57:05,168 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-13 00:57:05,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 00:57:05,215 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-13 00:57:05,218 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 00:57:05,218 INFO L82 PathProgramCache]: Analyzing trace with hash 1190, now seen corresponding path program 1 times [2021-10-13 00:57:05,218 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 00:57:05,219 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2090970544] [2021-10-13 00:57:05,220 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 00:57:05,220 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 00:57:05,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 00:57:05,242 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-13 00:57:05,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 00:57:05,258 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-13 00:57:05,259 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 00:57:05,259 INFO L82 PathProgramCache]: Analyzing trace with hash 925672, now seen corresponding path program 1 times [2021-10-13 00:57:05,259 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 00:57:05,260 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [606356527] [2021-10-13 00:57:05,260 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 00:57:05,260 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 00:57:05,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 00:57:05,281 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-13 00:57:05,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 00:57:05,294 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-13 00:57:05,636 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 13.10 12:57:05 BoogieIcfgContainer [2021-10-13 00:57:05,636 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2021-10-13 00:57:05,637 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-13 00:57:05,637 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-13 00:57:05,637 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-13 00:57:05,638 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 12:57:04" (3/4) ... [2021-10-13 00:57:05,640 INFO L134 WitnessPrinter]: Generating witness for non-termination counterexample [2021-10-13 00:57:05,670 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a50738de-adfa-45d5-a481-2570534f37fc/bin/uautomizer-WNIpwEf4Nt/witness.graphml [2021-10-13 00:57:05,670 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-13 00:57:05,671 INFO L168 Benchmark]: Toolchain (without parser) took 1351.11 ms. Allocated memory is still 136.3 MB. Free memory was 96.1 MB in the beginning and 74.1 MB in the end (delta: 22.0 MB). Peak memory consumption was 18.7 MB. Max. memory is 16.1 GB. [2021-10-13 00:57:05,672 INFO L168 Benchmark]: CDTParser took 0.22 ms. Allocated memory is still 136.3 MB. Free memory is still 112.2 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-10-13 00:57:05,673 INFO L168 Benchmark]: CACSL2BoogieTranslator took 312.44 ms. Allocated memory is still 136.3 MB. Free memory was 96.0 MB in the beginning and 111.2 MB in the end (delta: -15.3 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2021-10-13 00:57:05,673 INFO L168 Benchmark]: Boogie Procedure Inliner took 40.50 ms. Allocated memory is still 136.3 MB. Free memory was 111.2 MB in the beginning and 110.1 MB in the end (delta: 1.2 MB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-13 00:57:05,674 INFO L168 Benchmark]: Boogie Preprocessor took 17.78 ms. Allocated memory is still 136.3 MB. Free memory was 110.1 MB in the beginning and 108.6 MB in the end (delta: 1.5 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-13 00:57:05,675 INFO L168 Benchmark]: RCFGBuilder took 219.79 ms. Allocated memory is still 136.3 MB. Free memory was 108.6 MB in the beginning and 99.6 MB in the end (delta: 9.0 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2021-10-13 00:57:05,675 INFO L168 Benchmark]: BuchiAutomizer took 720.16 ms. Allocated memory is still 136.3 MB. Free memory was 99.6 MB in the beginning and 75.6 MB in the end (delta: 24.0 MB). Peak memory consumption was 25.2 MB. Max. memory is 16.1 GB. [2021-10-13 00:57:05,676 INFO L168 Benchmark]: Witness Printer took 33.37 ms. Allocated memory is still 136.3 MB. Free memory was 75.6 MB in the beginning and 74.1 MB in the end (delta: 1.5 MB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-13 00:57:05,679 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.22 ms. Allocated memory is still 136.3 MB. Free memory is still 112.2 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 312.44 ms. Allocated memory is still 136.3 MB. Free memory was 96.0 MB in the beginning and 111.2 MB in the end (delta: -15.3 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 40.50 ms. Allocated memory is still 136.3 MB. Free memory was 111.2 MB in the beginning and 110.1 MB in the end (delta: 1.2 MB). There was no memory consumed. Max. memory is 16.1 GB. * Boogie Preprocessor took 17.78 ms. Allocated memory is still 136.3 MB. Free memory was 110.1 MB in the beginning and 108.6 MB in the end (delta: 1.5 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 219.79 ms. Allocated memory is still 136.3 MB. Free memory was 108.6 MB in the beginning and 99.6 MB in the end (delta: 9.0 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * BuchiAutomizer took 720.16 ms. Allocated memory is still 136.3 MB. Free memory was 99.6 MB in the beginning and 75.6 MB in the end (delta: 24.0 MB). Peak memory consumption was 25.2 MB. Max. memory is 16.1 GB. * Witness Printer took 33.37 ms. Allocated memory is still 136.3 MB. Free memory was 75.6 MB in the beginning and 74.1 MB in the end (delta: 1.5 MB). There was no memory consumed. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Trivial decomposition into one nonterminating module. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 0.6s and 1 iterations. TraceHistogramMax:1. Analysis of lassos took 0.6s. Construction of modules took 0.0s. Büchi inclusion checks took 0.0s. Highest rank in rank-based complementation 0. Minimization of det autom 0. Minimization of nondet autom 0. Automata minimization No data available. 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: No data available LassoAnalysisResults: nont1 unkn0 SFLI0 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: 13]: 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 {org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@5e72cd92=867, org.eclipse.cdt.internal.core.dom.parser.c.CASTArraySubscriptExpression@521cdf61=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTArraySubscriptExpression@68e9fc5c=0, NULL=0, NULL=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@33692e7e=0, \result=0, a=0, NULL=1, a=2} - StatisticsResult: NonterminationArgumentStatistics Fixpoint - NonterminatingLassoResult [Line: 13]: Nonterminating execution Found a nonterminating execution for the following lasso shaped sequence of statements. Stem: [L9] int a[1048]; [L11] a[2] = __VERIFIER_nondet_int() Loop: [L13] EXPR a[2] [L13] COND TRUE a[2] >= 0 [L14] EXPR a[2] [L14] a[2] = a[2] - 1 [L15] a[1+1] = __VERIFIER_nondet_int() End of lasso representation. RESULT: Ultimate proved your program to be incorrect! [2021-10-13 00:57:05,734 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a50738de-adfa-45d5-a481-2570534f37fc/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...