./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/ldv-regression/test20.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version b2eff8ba Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2bb07d83-2946-46e4-84c0-a6a9bd12b80c/bin/uautomizer-GMMbpWq8iD/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2bb07d83-2946-46e4-84c0-a6a9bd12b80c/bin/uautomizer-GMMbpWq8iD/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2bb07d83-2946-46e4-84c0-a6a9bd12b80c/bin/uautomizer-GMMbpWq8iD/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2bb07d83-2946-46e4-84c0-a6a9bd12b80c/bin/uautomizer-GMMbpWq8iD/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/ldv-regression/test20.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2bb07d83-2946-46e4-84c0-a6a9bd12b80c/bin/uautomizer-GMMbpWq8iD/config/svcomp-Termination-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2bb07d83-2946-46e4-84c0-a6a9bd12b80c/bin/uautomizer-GMMbpWq8iD --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 d70ec4f924a7b66c3c5b4c9f4ff09d3682a4c192bf1d70fa04fe14236f51f678 ....................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.2.1-dev-b2eff8b [2021-10-28 23:05:05,470 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-28 23:05:05,471 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-28 23:05:05,514 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-28 23:05:05,515 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-28 23:05:05,519 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-28 23:05:05,522 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-28 23:05:05,526 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-28 23:05:05,528 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-28 23:05:05,534 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-28 23:05:05,535 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-28 23:05:05,537 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-28 23:05:05,537 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-28 23:05:05,540 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-28 23:05:05,543 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-28 23:05:05,545 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-28 23:05:05,550 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-28 23:05:05,551 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-28 23:05:05,556 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-28 23:05:05,563 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-28 23:05:05,565 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-28 23:05:05,566 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-28 23:05:05,569 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-28 23:05:05,570 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-28 23:05:05,579 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-28 23:05:05,580 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-28 23:05:05,580 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-28 23:05:05,583 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-28 23:05:05,583 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-28 23:05:05,585 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-28 23:05:05,586 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-28 23:05:05,587 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-28 23:05:05,589 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-28 23:05:05,590 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-28 23:05:05,592 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-28 23:05:05,592 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-28 23:05:05,593 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-28 23:05:05,593 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-28 23:05:05,593 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-28 23:05:05,594 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-28 23:05:05,595 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-28 23:05:05,595 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2bb07d83-2946-46e4-84c0-a6a9bd12b80c/bin/uautomizer-GMMbpWq8iD/config/svcomp-Termination-32bit-Automizer_Default.epf [2021-10-28 23:05:05,644 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-28 23:05:05,646 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-28 23:05:05,647 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-10-28 23:05:05,647 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-10-28 23:05:05,649 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-10-28 23:05:05,649 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-10-28 23:05:05,650 INFO L138 SettingsManager]: * Use SBE=true [2021-10-28 23:05:05,650 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2021-10-28 23:05:05,650 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2021-10-28 23:05:05,650 INFO L138 SettingsManager]: * Use old map elimination=false [2021-10-28 23:05:05,651 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2021-10-28 23:05:05,652 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2021-10-28 23:05:05,652 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2021-10-28 23:05:05,652 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-28 23:05:05,652 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-28 23:05:05,653 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-10-28 23:05:05,653 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-28 23:05:05,653 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-28 23:05:05,653 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-28 23:05:05,653 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2021-10-28 23:05:05,654 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2021-10-28 23:05:05,654 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2021-10-28 23:05:05,654 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-28 23:05:05,654 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-28 23:05:05,654 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2021-10-28 23:05:05,655 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-28 23:05:05,657 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2021-10-28 23:05:05,657 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-28 23:05:05,657 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-10-28 23:05:05,658 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-28 23:05:05,658 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-10-28 23:05:05,658 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-28 23:05:05,659 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2021-10-28 23:05:05,659 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_2bb07d83-2946-46e4-84c0-a6a9bd12b80c/bin/uautomizer-GMMbpWq8iD/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2bb07d83-2946-46e4-84c0-a6a9bd12b80c/bin/uautomizer-GMMbpWq8iD Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> d70ec4f924a7b66c3c5b4c9f4ff09d3682a4c192bf1d70fa04fe14236f51f678 [2021-10-28 23:05:05,963 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-28 23:05:05,985 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-28 23:05:05,987 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-28 23:05:05,988 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-28 23:05:05,989 INFO L275 PluginConnector]: CDTParser initialized [2021-10-28 23:05:05,990 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2bb07d83-2946-46e4-84c0-a6a9bd12b80c/bin/uautomizer-GMMbpWq8iD/../../sv-benchmarks/c/ldv-regression/test20.c [2021-10-28 23:05:06,048 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2bb07d83-2946-46e4-84c0-a6a9bd12b80c/bin/uautomizer-GMMbpWq8iD/data/63885ec34/0ea6c07b4209444ca181cde5678aa386/FLAGefc0e6c4c [2021-10-28 23:05:06,465 INFO L306 CDTParser]: Found 1 translation units. [2021-10-28 23:05:06,466 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2bb07d83-2946-46e4-84c0-a6a9bd12b80c/sv-benchmarks/c/ldv-regression/test20.c [2021-10-28 23:05:06,470 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2bb07d83-2946-46e4-84c0-a6a9bd12b80c/bin/uautomizer-GMMbpWq8iD/data/63885ec34/0ea6c07b4209444ca181cde5678aa386/FLAGefc0e6c4c [2021-10-28 23:05:06,484 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2bb07d83-2946-46e4-84c0-a6a9bd12b80c/bin/uautomizer-GMMbpWq8iD/data/63885ec34/0ea6c07b4209444ca181cde5678aa386 [2021-10-28 23:05:06,487 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-28 23:05:06,488 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-28 23:05:06,490 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-28 23:05:06,491 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-28 23:05:06,494 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-28 23:05:06,495 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.10 11:05:06" (1/1) ... [2021-10-28 23:05:06,496 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@67a8010c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:05:06, skipping insertion in model container [2021-10-28 23:05:06,496 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.10 11:05:06" (1/1) ... [2021-10-28 23:05:06,505 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-28 23:05:06,517 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-28 23:05:06,658 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2bb07d83-2946-46e4-84c0-a6a9bd12b80c/sv-benchmarks/c/ldv-regression/test20.c[377,390] [2021-10-28 23:05:06,662 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-28 23:05:06,671 INFO L203 MainTranslator]: Completed pre-run [2021-10-28 23:05:06,703 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2bb07d83-2946-46e4-84c0-a6a9bd12b80c/sv-benchmarks/c/ldv-regression/test20.c[377,390] [2021-10-28 23:05:06,705 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-28 23:05:06,717 INFO L208 MainTranslator]: Completed translation [2021-10-28 23:05:06,717 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:05:06 WrapperNode [2021-10-28 23:05:06,717 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-28 23:05:06,718 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-28 23:05:06,718 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-28 23:05:06,718 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-28 23:05:06,729 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:05:06" (1/1) ... [2021-10-28 23:05:06,738 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:05:06" (1/1) ... [2021-10-28 23:05:06,760 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-28 23:05:06,761 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-28 23:05:06,762 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-28 23:05:06,762 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-28 23:05:06,771 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:05:06" (1/1) ... [2021-10-28 23:05:06,772 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:05:06" (1/1) ... [2021-10-28 23:05:06,775 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:05:06" (1/1) ... [2021-10-28 23:05:06,775 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:05:06" (1/1) ... [2021-10-28 23:05:06,782 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:05:06" (1/1) ... [2021-10-28 23:05:06,784 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:05:06" (1/1) ... [2021-10-28 23:05:06,786 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:05:06" (1/1) ... [2021-10-28 23:05:06,794 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-28 23:05:06,796 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-28 23:05:06,797 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-28 23:05:06,797 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-28 23:05:06,800 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:05:06" (1/1) ... [2021-10-28 23:05:06,808 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:05:06,821 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2bb07d83-2946-46e4-84c0-a6a9bd12b80c/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:05:06,838 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2bb07d83-2946-46e4-84c0-a6a9bd12b80c/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:05:06,853 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2bb07d83-2946-46e4-84c0-a6a9bd12b80c/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2021-10-28 23:05:06,894 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-28 23:05:06,894 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-28 23:05:06,894 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-10-28 23:05:06,894 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-28 23:05:07,160 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-28 23:05:07,161 INFO L299 CfgBuilder]: Removed 6 assume(true) statements. [2021-10-28 23:05:07,163 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.10 11:05:07 BoogieIcfgContainer [2021-10-28 23:05:07,163 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-28 23:05:07,164 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2021-10-28 23:05:07,164 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2021-10-28 23:05:07,168 INFO L275 PluginConnector]: BuchiAutomizer initialized [2021-10-28 23:05:07,168 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-10-28 23:05:07,176 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 28.10 11:05:06" (1/3) ... [2021-10-28 23:05:07,177 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@7367eda6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 28.10 11:05:07, skipping insertion in model container [2021-10-28 23:05:07,177 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-10-28 23:05:07,178 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:05:06" (2/3) ... [2021-10-28 23:05:07,178 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@7367eda6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 28.10 11:05:07, skipping insertion in model container [2021-10-28 23:05:07,178 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-10-28 23:05:07,179 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.10 11:05:07" (3/3) ... [2021-10-28 23:05:07,180 INFO L389 chiAutomizerObserver]: Analyzing ICFG test20.c [2021-10-28 23:05:07,235 INFO L359 BuchiCegarLoop]: Interprodecural is true [2021-10-28 23:05:07,236 INFO L360 BuchiCegarLoop]: Hoare is false [2021-10-28 23:05:07,236 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2021-10-28 23:05:07,236 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2021-10-28 23:05:07,236 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-10-28 23:05:07,236 INFO L364 BuchiCegarLoop]: Difference is false [2021-10-28 23:05:07,237 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-10-28 23:05:07,237 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2021-10-28 23:05:07,252 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 8 states, 7 states have (on average 1.1428571428571428) internal successors, (8), 7 states have internal predecessors, (8), 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) [2021-10-28 23:05:07,271 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2021-10-28 23:05:07,272 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2021-10-28 23:05:07,277 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 28.10 11:05:07 BoogieIcfgContainer [2021-10-28 23:05:07,277 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2021-10-28 23:05:07,278 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-28 23:05:07,278 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-28 23:05:07,278 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-28 23:05:07,279 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.10 11:05:07" (3/4) ... [2021-10-28 23:05:07,282 INFO L140 WitnessPrinter]: No result that supports witness generation found [2021-10-28 23:05:07,282 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-28 23:05:07,285 INFO L168 Benchmark]: Toolchain (without parser) took 794.89 ms. Allocated memory is still 104.9 MB. Free memory was 64.4 MB in the beginning and 64.3 MB in the end (delta: 117.4 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-28 23:05:07,286 INFO L168 Benchmark]: CDTParser took 0.22 ms. Allocated memory is still 104.9 MB. Free memory is still 80.5 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-10-28 23:05:07,287 INFO L168 Benchmark]: CACSL2BoogieTranslator took 227.09 ms. Allocated memory is still 104.9 MB. Free memory was 64.2 MB in the beginning and 81.4 MB in the end (delta: -17.2 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2021-10-28 23:05:07,288 INFO L168 Benchmark]: Boogie Procedure Inliner took 42.49 ms. Allocated memory is still 104.9 MB. Free memory was 81.4 MB in the beginning and 79.8 MB in the end (delta: 1.6 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-28 23:05:07,289 INFO L168 Benchmark]: Boogie Preprocessor took 33.01 ms. Allocated memory is still 104.9 MB. Free memory was 79.8 MB in the beginning and 79.0 MB in the end (delta: 851.8 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-28 23:05:07,291 INFO L168 Benchmark]: RCFGBuilder took 366.69 ms. Allocated memory is still 104.9 MB. Free memory was 79.0 MB in the beginning and 69.8 MB in the end (delta: 9.2 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2021-10-28 23:05:07,292 INFO L168 Benchmark]: BuchiAutomizer took 113.30 ms. Allocated memory is still 104.9 MB. Free memory was 69.3 MB in the beginning and 64.7 MB in the end (delta: 4.6 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2021-10-28 23:05:07,293 INFO L168 Benchmark]: Witness Printer took 4.68 ms. Allocated memory is still 104.9 MB. Free memory is still 64.3 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-10-28 23:05:07,300 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 104.9 MB. Free memory is still 80.5 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 227.09 ms. Allocated memory is still 104.9 MB. Free memory was 64.2 MB in the beginning and 81.4 MB in the end (delta: -17.2 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 42.49 ms. Allocated memory is still 104.9 MB. Free memory was 81.4 MB in the beginning and 79.8 MB in the end (delta: 1.6 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 33.01 ms. Allocated memory is still 104.9 MB. Free memory was 79.8 MB in the beginning and 79.0 MB in the end (delta: 851.8 kB). There was no memory consumed. Max. memory is 16.1 GB. * RCFGBuilder took 366.69 ms. Allocated memory is still 104.9 MB. Free memory was 79.0 MB in the beginning and 69.8 MB in the end (delta: 9.2 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * BuchiAutomizer took 113.30 ms. Allocated memory is still 104.9 MB. Free memory was 69.3 MB in the beginning and 64.7 MB in the end (delta: 4.6 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. * Witness Printer took 4.68 ms. Allocated memory is still 104.9 MB. Free memory is still 64.3 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. There is no loop in your program. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 0.0s and 0 iterations. TraceHistogramMax:0. Analysis of lassos took 0.0s. 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: nont0 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: Termination proven Buchi Automizer proved that your program is terminating RESULT: Ultimate proved your program to be correct! [2021-10-28 23:05:07,373 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2bb07d83-2946-46e4-84c0-a6a9bd12b80c/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Ended with exit code 0 Received shutdown request...