./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/ldv-regression/test21-2.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 839c364b Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2b219ad-fe87-4ce2-8140-24ad7c934e7c/bin/uautomizer-DrprNOufMa/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2b219ad-fe87-4ce2-8140-24ad7c934e7c/bin/uautomizer-DrprNOufMa/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2b219ad-fe87-4ce2-8140-24ad7c934e7c/bin/uautomizer-DrprNOufMa/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2b219ad-fe87-4ce2-8140-24ad7c934e7c/bin/uautomizer-DrprNOufMa/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/ldv-regression/test21-2.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2b219ad-fe87-4ce2-8140-24ad7c934e7c/bin/uautomizer-DrprNOufMa/config/svcomp-Termination-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2b219ad-fe87-4ce2-8140-24ad7c934e7c/bin/uautomizer-DrprNOufMa --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 712c5452cee1b4c02208da17c2cf0dc9636485194e157c656e1372fe334269f7 --- Real Ultimate output --- This is Ultimate 0.2.2-hotfix-svcomp22-839c364 [2021-12-06 22:30:42,595 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-12-06 22:30:42,597 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-12-06 22:30:42,620 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-12-06 22:30:42,620 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-12-06 22:30:42,621 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-12-06 22:30:42,622 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-12-06 22:30:42,624 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-12-06 22:30:42,626 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-12-06 22:30:42,626 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-12-06 22:30:42,627 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-12-06 22:30:42,628 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-12-06 22:30:42,629 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-12-06 22:30:42,629 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-12-06 22:30:42,631 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-12-06 22:30:42,632 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-12-06 22:30:42,632 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-12-06 22:30:42,633 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-12-06 22:30:42,635 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-12-06 22:30:42,637 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-12-06 22:30:42,638 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-12-06 22:30:42,639 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-12-06 22:30:42,640 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-12-06 22:30:42,641 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-12-06 22:30:42,643 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-12-06 22:30:42,644 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-12-06 22:30:42,644 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-12-06 22:30:42,645 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-12-06 22:30:42,645 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-12-06 22:30:42,646 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-12-06 22:30:42,647 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-12-06 22:30:42,647 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-12-06 22:30:42,648 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-12-06 22:30:42,649 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-12-06 22:30:42,649 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-12-06 22:30:42,650 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-12-06 22:30:42,650 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-12-06 22:30:42,650 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-12-06 22:30:42,650 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-12-06 22:30:42,651 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-12-06 22:30:42,652 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-12-06 22:30:42,652 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2b219ad-fe87-4ce2-8140-24ad7c934e7c/bin/uautomizer-DrprNOufMa/config/svcomp-Termination-32bit-Automizer_Default.epf [2021-12-06 22:30:42,672 INFO L113 SettingsManager]: Loading preferences was successful [2021-12-06 22:30:42,672 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-12-06 22:30:42,672 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-12-06 22:30:42,672 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-12-06 22:30:42,673 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-12-06 22:30:42,673 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-12-06 22:30:42,673 INFO L138 SettingsManager]: * Use SBE=true [2021-12-06 22:30:42,673 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2021-12-06 22:30:42,673 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2021-12-06 22:30:42,674 INFO L138 SettingsManager]: * Use old map elimination=false [2021-12-06 22:30:42,674 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2021-12-06 22:30:42,674 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2021-12-06 22:30:42,674 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2021-12-06 22:30:42,674 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-12-06 22:30:42,674 INFO L138 SettingsManager]: * sizeof long=4 [2021-12-06 22:30:42,674 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-12-06 22:30:42,674 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-12-06 22:30:42,675 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-12-06 22:30:42,675 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-12-06 22:30:42,675 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2021-12-06 22:30:42,675 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2021-12-06 22:30:42,675 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2021-12-06 22:30:42,675 INFO L138 SettingsManager]: * sizeof long double=12 [2021-12-06 22:30:42,675 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-12-06 22:30:42,675 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2021-12-06 22:30:42,675 INFO L138 SettingsManager]: * Use constant arrays=true [2021-12-06 22:30:42,676 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2021-12-06 22:30:42,676 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-12-06 22:30:42,676 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-12-06 22:30:42,676 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-12-06 22:30:42,676 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-12-06 22:30:42,676 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-12-06 22:30:42,677 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2021-12-06 22:30:42,677 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_f2b219ad-fe87-4ce2-8140-24ad7c934e7c/bin/uautomizer-DrprNOufMa/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2b219ad-fe87-4ce2-8140-24ad7c934e7c/bin/uautomizer-DrprNOufMa Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 712c5452cee1b4c02208da17c2cf0dc9636485194e157c656e1372fe334269f7 [2021-12-06 22:30:42,863 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-12-06 22:30:42,881 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-12-06 22:30:42,883 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-12-06 22:30:42,884 INFO L271 PluginConnector]: Initializing CDTParser... [2021-12-06 22:30:42,884 INFO L275 PluginConnector]: CDTParser initialized [2021-12-06 22:30:42,885 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2b219ad-fe87-4ce2-8140-24ad7c934e7c/bin/uautomizer-DrprNOufMa/../../sv-benchmarks/c/ldv-regression/test21-2.c [2021-12-06 22:30:42,937 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2b219ad-fe87-4ce2-8140-24ad7c934e7c/bin/uautomizer-DrprNOufMa/data/4898c1948/12cbf378b8ac46508d84825239286f0f/FLAG8b91263e1 [2021-12-06 22:30:43,296 INFO L306 CDTParser]: Found 1 translation units. [2021-12-06 22:30:43,296 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2b219ad-fe87-4ce2-8140-24ad7c934e7c/sv-benchmarks/c/ldv-regression/test21-2.c [2021-12-06 22:30:43,301 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2b219ad-fe87-4ce2-8140-24ad7c934e7c/bin/uautomizer-DrprNOufMa/data/4898c1948/12cbf378b8ac46508d84825239286f0f/FLAG8b91263e1 [2021-12-06 22:30:43,310 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2b219ad-fe87-4ce2-8140-24ad7c934e7c/bin/uautomizer-DrprNOufMa/data/4898c1948/12cbf378b8ac46508d84825239286f0f [2021-12-06 22:30:43,312 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-12-06 22:30:43,313 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-12-06 22:30:43,314 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-12-06 22:30:43,314 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-12-06 22:30:43,316 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-12-06 22:30:43,317 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.12 10:30:43" (1/1) ... [2021-12-06 22:30:43,318 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@159b8501 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 10:30:43, skipping insertion in model container [2021-12-06 22:30:43,318 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.12 10:30:43" (1/1) ... [2021-12-06 22:30:43,323 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-12-06 22:30:43,333 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-12-06 22:30:43,461 WARN L230 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_f2b219ad-fe87-4ce2-8140-24ad7c934e7c/sv-benchmarks/c/ldv-regression/test21-2.c[892,905] [2021-12-06 22:30:43,461 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-06 22:30:43,468 INFO L203 MainTranslator]: Completed pre-run [2021-12-06 22:30:43,479 WARN L230 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_f2b219ad-fe87-4ce2-8140-24ad7c934e7c/sv-benchmarks/c/ldv-regression/test21-2.c[892,905] [2021-12-06 22:30:43,480 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-06 22:30:43,490 INFO L208 MainTranslator]: Completed translation [2021-12-06 22:30:43,491 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 10:30:43 WrapperNode [2021-12-06 22:30:43,491 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-12-06 22:30:43,492 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-12-06 22:30:43,492 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-12-06 22:30:43,492 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-12-06 22:30:43,497 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 10:30:43" (1/1) ... [2021-12-06 22:30:43,502 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 10:30:43" (1/1) ... [2021-12-06 22:30:43,518 INFO L137 Inliner]: procedures = 16, calls = 23, calls flagged for inlining = 6, calls inlined = 6, statements flattened = 68 [2021-12-06 22:30:43,518 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-12-06 22:30:43,519 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-12-06 22:30:43,519 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-12-06 22:30:43,519 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-12-06 22:30:43,525 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 10:30:43" (1/1) ... [2021-12-06 22:30:43,525 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 10:30:43" (1/1) ... [2021-12-06 22:30:43,527 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 10:30:43" (1/1) ... [2021-12-06 22:30:43,527 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 10:30:43" (1/1) ... [2021-12-06 22:30:43,533 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 10:30:43" (1/1) ... [2021-12-06 22:30:43,535 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 10:30:43" (1/1) ... [2021-12-06 22:30:43,536 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 10:30:43" (1/1) ... [2021-12-06 22:30:43,539 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-12-06 22:30:43,540 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-12-06 22:30:43,540 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-12-06 22:30:43,540 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-12-06 22:30:43,541 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 10:30:43" (1/1) ... [2021-12-06 22:30:43,548 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-06 22:30:43,556 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2b219ad-fe87-4ce2-8140-24ad7c934e7c/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 22:30:43,566 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2b219ad-fe87-4ce2-8140-24ad7c934e7c/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-06 22:30:43,567 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2b219ad-fe87-4ce2-8140-24ad7c934e7c/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2021-12-06 22:30:43,594 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-12-06 22:30:43,595 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-12-06 22:30:43,595 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-12-06 22:30:43,595 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-12-06 22:30:43,595 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-12-06 22:30:43,595 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-12-06 22:30:43,646 INFO L236 CfgBuilder]: Building ICFG [2021-12-06 22:30:43,647 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-12-06 22:30:43,732 INFO L277 CfgBuilder]: Performing block encoding [2021-12-06 22:30:43,736 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-12-06 22:30:43,737 INFO L301 CfgBuilder]: Removed 0 assume(true) statements. [2021-12-06 22:30:43,738 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.12 10:30:43 BoogieIcfgContainer [2021-12-06 22:30:43,738 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-12-06 22:30:43,739 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2021-12-06 22:30:43,739 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2021-12-06 22:30:43,741 INFO L275 PluginConnector]: BuchiAutomizer initialized [2021-12-06 22:30:43,742 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-12-06 22:30:43,742 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 06.12 10:30:43" (1/3) ... [2021-12-06 22:30:43,742 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@4181c29c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 06.12 10:30:43, skipping insertion in model container [2021-12-06 22:30:43,742 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-12-06 22:30:43,743 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 10:30:43" (2/3) ... [2021-12-06 22:30:43,743 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@4181c29c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 06.12 10:30:43, skipping insertion in model container [2021-12-06 22:30:43,743 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-12-06 22:30:43,743 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.12 10:30:43" (3/3) ... [2021-12-06 22:30:43,744 INFO L388 chiAutomizerObserver]: Analyzing ICFG test21-2.c [2021-12-06 22:30:43,775 INFO L359 BuchiCegarLoop]: Interprodecural is true [2021-12-06 22:30:43,775 INFO L360 BuchiCegarLoop]: Hoare is false [2021-12-06 22:30:43,775 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2021-12-06 22:30:43,775 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2021-12-06 22:30:43,775 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-12-06 22:30:43,776 INFO L364 BuchiCegarLoop]: Difference is false [2021-12-06 22:30:43,776 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-12-06 22:30:43,776 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2021-12-06 22:30:43,786 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 17 states, 16 states have (on average 1.25) internal successors, (20), 16 states have internal predecessors, (20), 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) [2021-12-06 22:30:43,799 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2021-12-06 22:30:43,799 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2021-12-06 22:30:43,802 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 06.12 10:30:43 BoogieIcfgContainer [2021-12-06 22:30:43,802 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2021-12-06 22:30:43,803 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-12-06 22:30:43,803 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-12-06 22:30:43,803 INFO L275 PluginConnector]: Witness Printer initialized [2021-12-06 22:30:43,804 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.12 10:30:43" (3/4) ... [2021-12-06 22:30:43,806 INFO L140 WitnessPrinter]: No result that supports witness generation found [2021-12-06 22:30:43,806 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-12-06 22:30:43,807 INFO L158 Benchmark]: Toolchain (without parser) took 493.89ms. Allocated memory is still 100.7MB. Free memory was 65.6MB in the beginning and 59.4MB in the end (delta: 6.2MB). Peak memory consumption was 3.7MB. Max. memory is 16.1GB. [2021-12-06 22:30:43,808 INFO L158 Benchmark]: CDTParser took 0.14ms. Allocated memory is still 100.7MB. Free memory is still 81.7MB. There was no memory consumed. Max. memory is 16.1GB. [2021-12-06 22:30:43,808 INFO L158 Benchmark]: CACSL2BoogieTranslator took 177.07ms. Allocated memory is still 100.7MB. Free memory was 65.3MB in the beginning and 77.8MB in the end (delta: -12.5MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2021-12-06 22:30:43,809 INFO L158 Benchmark]: Boogie Procedure Inliner took 26.63ms. Allocated memory is still 100.7MB. Free memory was 77.8MB in the beginning and 76.1MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-12-06 22:30:43,810 INFO L158 Benchmark]: Boogie Preprocessor took 20.04ms. Allocated memory is still 100.7MB. Free memory was 76.1MB in the beginning and 75.3MB in the end (delta: 820.1kB). There was no memory consumed. Max. memory is 16.1GB. [2021-12-06 22:30:43,810 INFO L158 Benchmark]: RCFGBuilder took 198.48ms. Allocated memory is still 100.7MB. Free memory was 74.9MB in the beginning and 64.8MB in the end (delta: 10.0MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2021-12-06 22:30:43,811 INFO L158 Benchmark]: BuchiAutomizer took 63.84ms. Allocated memory is still 100.7MB. Free memory was 64.8MB in the beginning and 59.8MB in the end (delta: 5.0MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2021-12-06 22:30:43,812 INFO L158 Benchmark]: Witness Printer took 3.02ms. Allocated memory is still 100.7MB. Free memory is still 59.4MB. There was no memory consumed. Max. memory is 16.1GB. [2021-12-06 22:30:43,815 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.14ms. Allocated memory is still 100.7MB. Free memory is still 81.7MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 177.07ms. Allocated memory is still 100.7MB. Free memory was 65.3MB in the beginning and 77.8MB in the end (delta: -12.5MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 26.63ms. Allocated memory is still 100.7MB. Free memory was 77.8MB in the beginning and 76.1MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 20.04ms. Allocated memory is still 100.7MB. Free memory was 76.1MB in the beginning and 75.3MB in the end (delta: 820.1kB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 198.48ms. Allocated memory is still 100.7MB. Free memory was 74.9MB in the beginning and 64.8MB in the end (delta: 10.0MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * BuchiAutomizer took 63.84ms. Allocated memory is still 100.7MB. Free memory was 64.8MB in the beginning and 59.8MB in the end (delta: 5.0MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. * Witness Printer took 3.02ms. Allocated memory is still 100.7MB. Free memory is still 59.4MB. There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program 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: 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! [2021-12-06 22:30:43,864 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2b219ad-fe87-4ce2-8140-24ad7c934e7c/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE