./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 839c364b Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_11983470-287b-4932-8f9e-fdb0297a4a7b/bin/uautomizer-DrprNOufMa/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_11983470-287b-4932-8f9e-fdb0297a4a7b/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_11983470-287b-4932-8f9e-fdb0297a4a7b/bin/uautomizer-DrprNOufMa/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_11983470-287b-4932-8f9e-fdb0297a4a7b/bin/uautomizer-DrprNOufMa/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/ldv-regression/test20.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_11983470-287b-4932-8f9e-fdb0297a4a7b/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_11983470-287b-4932-8f9e-fdb0297a4a7b/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 d70ec4f924a7b66c3c5b4c9f4ff09d3682a4c192bf1d70fa04fe14236f51f678 --- Real Ultimate output --- This is Ultimate 0.2.2-hotfix-svcomp22-839c364 [2021-12-06 22:57:42,702 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-12-06 22:57:42,704 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-12-06 22:57:42,726 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-12-06 22:57:42,727 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-12-06 22:57:42,728 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-12-06 22:57:42,729 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-12-06 22:57:42,731 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-12-06 22:57:42,733 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-12-06 22:57:42,733 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-12-06 22:57:42,734 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-12-06 22:57:42,735 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-12-06 22:57:42,736 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-12-06 22:57:42,737 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-12-06 22:57:42,738 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-12-06 22:57:42,739 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-12-06 22:57:42,740 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-12-06 22:57:42,741 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-12-06 22:57:42,742 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-12-06 22:57:42,744 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-12-06 22:57:42,746 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-12-06 22:57:42,747 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-12-06 22:57:42,748 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-12-06 22:57:42,749 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-12-06 22:57:42,752 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-12-06 22:57:42,752 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-12-06 22:57:42,753 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-12-06 22:57:42,753 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-12-06 22:57:42,754 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-12-06 22:57:42,755 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-12-06 22:57:42,755 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-12-06 22:57:42,756 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-12-06 22:57:42,756 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-12-06 22:57:42,757 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-12-06 22:57:42,758 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-12-06 22:57:42,758 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-12-06 22:57:42,759 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-12-06 22:57:42,759 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-12-06 22:57:42,759 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-12-06 22:57:42,760 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-12-06 22:57:42,761 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-12-06 22:57:42,761 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_11983470-287b-4932-8f9e-fdb0297a4a7b/bin/uautomizer-DrprNOufMa/config/svcomp-Termination-32bit-Automizer_Default.epf [2021-12-06 22:57:42,780 INFO L113 SettingsManager]: Loading preferences was successful [2021-12-06 22:57:42,780 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-12-06 22:57:42,780 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-12-06 22:57:42,780 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-12-06 22:57:42,781 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-12-06 22:57:42,781 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-12-06 22:57:42,781 INFO L138 SettingsManager]: * Use SBE=true [2021-12-06 22:57:42,782 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2021-12-06 22:57:42,782 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2021-12-06 22:57:42,782 INFO L138 SettingsManager]: * Use old map elimination=false [2021-12-06 22:57:42,782 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2021-12-06 22:57:42,782 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2021-12-06 22:57:42,782 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2021-12-06 22:57:42,782 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-12-06 22:57:42,782 INFO L138 SettingsManager]: * sizeof long=4 [2021-12-06 22:57:42,783 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-12-06 22:57:42,783 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-12-06 22:57:42,783 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-12-06 22:57:42,783 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-12-06 22:57:42,783 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2021-12-06 22:57:42,783 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2021-12-06 22:57:42,783 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2021-12-06 22:57:42,783 INFO L138 SettingsManager]: * sizeof long double=12 [2021-12-06 22:57:42,784 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-12-06 22:57:42,788 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2021-12-06 22:57:42,788 INFO L138 SettingsManager]: * Use constant arrays=true [2021-12-06 22:57:42,788 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2021-12-06 22:57:42,788 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-12-06 22:57:42,789 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-12-06 22:57:42,789 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-12-06 22:57:42,789 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-12-06 22:57:42,789 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-12-06 22:57:42,790 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2021-12-06 22:57:42,790 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_11983470-287b-4932-8f9e-fdb0297a4a7b/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_11983470-287b-4932-8f9e-fdb0297a4a7b/bin/uautomizer-DrprNOufMa Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> d70ec4f924a7b66c3c5b4c9f4ff09d3682a4c192bf1d70fa04fe14236f51f678 [2021-12-06 22:57:42,987 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-12-06 22:57:43,004 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-12-06 22:57:43,006 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-12-06 22:57:43,007 INFO L271 PluginConnector]: Initializing CDTParser... [2021-12-06 22:57:43,008 INFO L275 PluginConnector]: CDTParser initialized [2021-12-06 22:57:43,009 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_11983470-287b-4932-8f9e-fdb0297a4a7b/bin/uautomizer-DrprNOufMa/../../sv-benchmarks/c/ldv-regression/test20.c [2021-12-06 22:57:43,052 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_11983470-287b-4932-8f9e-fdb0297a4a7b/bin/uautomizer-DrprNOufMa/data/0e36492a9/43f4adc8a8a44501b09d177f4e08480f/FLAGca6acdf28 [2021-12-06 22:57:43,421 INFO L306 CDTParser]: Found 1 translation units. [2021-12-06 22:57:43,421 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_11983470-287b-4932-8f9e-fdb0297a4a7b/sv-benchmarks/c/ldv-regression/test20.c [2021-12-06 22:57:43,426 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_11983470-287b-4932-8f9e-fdb0297a4a7b/bin/uautomizer-DrprNOufMa/data/0e36492a9/43f4adc8a8a44501b09d177f4e08480f/FLAGca6acdf28 [2021-12-06 22:57:43,438 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_11983470-287b-4932-8f9e-fdb0297a4a7b/bin/uautomizer-DrprNOufMa/data/0e36492a9/43f4adc8a8a44501b09d177f4e08480f [2021-12-06 22:57:43,440 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-12-06 22:57:43,442 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-12-06 22:57:43,444 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-12-06 22:57:43,444 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-12-06 22:57:43,446 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-12-06 22:57:43,447 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.12 10:57:43" (1/1) ... [2021-12-06 22:57:43,448 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4ee20860 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 10:57:43, skipping insertion in model container [2021-12-06 22:57:43,448 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.12 10:57:43" (1/1) ... [2021-12-06 22:57:43,453 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-12-06 22:57:43,461 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-12-06 22:57:43,560 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_11983470-287b-4932-8f9e-fdb0297a4a7b/sv-benchmarks/c/ldv-regression/test20.c[377,390] [2021-12-06 22:57:43,564 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-06 22:57:43,575 INFO L203 MainTranslator]: Completed pre-run [2021-12-06 22:57:43,584 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_11983470-287b-4932-8f9e-fdb0297a4a7b/sv-benchmarks/c/ldv-regression/test20.c[377,390] [2021-12-06 22:57:43,585 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-06 22:57:43,596 INFO L208 MainTranslator]: Completed translation [2021-12-06 22:57:43,596 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 10:57:43 WrapperNode [2021-12-06 22:57:43,596 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-12-06 22:57:43,597 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-12-06 22:57:43,597 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-12-06 22:57:43,597 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-12-06 22:57:43,603 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 10:57:43" (1/1) ... [2021-12-06 22:57:43,608 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 10:57:43" (1/1) ... [2021-12-06 22:57:43,620 INFO L137 Inliner]: procedures = 12, calls = 12, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 28 [2021-12-06 22:57:43,621 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-12-06 22:57:43,621 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-12-06 22:57:43,621 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-12-06 22:57:43,621 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-12-06 22:57:43,627 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 10:57:43" (1/1) ... [2021-12-06 22:57:43,628 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 10:57:43" (1/1) ... [2021-12-06 22:57:43,628 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 10:57:43" (1/1) ... [2021-12-06 22:57:43,629 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 10:57:43" (1/1) ... [2021-12-06 22:57:43,631 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 10:57:43" (1/1) ... [2021-12-06 22:57:43,633 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 10:57:43" (1/1) ... [2021-12-06 22:57:43,634 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 10:57:43" (1/1) ... [2021-12-06 22:57:43,635 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-12-06 22:57:43,636 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-12-06 22:57:43,636 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-12-06 22:57:43,636 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-12-06 22:57:43,637 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 10:57:43" (1/1) ... [2021-12-06 22:57:43,644 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-06 22:57:43,652 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_11983470-287b-4932-8f9e-fdb0297a4a7b/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 22:57:43,664 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_11983470-287b-4932-8f9e-fdb0297a4a7b/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-06 22:57:43,666 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_11983470-287b-4932-8f9e-fdb0297a4a7b/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2021-12-06 22:57:43,704 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-12-06 22:57:43,704 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-12-06 22:57:43,705 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-12-06 22:57:43,705 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-12-06 22:57:43,762 INFO L236 CfgBuilder]: Building ICFG [2021-12-06 22:57:43,763 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-12-06 22:57:43,819 INFO L277 CfgBuilder]: Performing block encoding [2021-12-06 22:57:43,825 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-12-06 22:57:43,825 INFO L301 CfgBuilder]: Removed 0 assume(true) statements. [2021-12-06 22:57:43,827 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.12 10:57:43 BoogieIcfgContainer [2021-12-06 22:57:43,827 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-12-06 22:57:43,828 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2021-12-06 22:57:43,828 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2021-12-06 22:57:43,831 INFO L275 PluginConnector]: BuchiAutomizer initialized [2021-12-06 22:57:43,832 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-12-06 22:57:43,832 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 06.12 10:57:43" (1/3) ... [2021-12-06 22:57:43,833 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@58e7491c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 06.12 10:57:43, skipping insertion in model container [2021-12-06 22:57:43,833 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-12-06 22:57:43,834 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 10:57:43" (2/3) ... [2021-12-06 22:57:43,834 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@58e7491c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 06.12 10:57:43, skipping insertion in model container [2021-12-06 22:57:43,834 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-12-06 22:57:43,834 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.12 10:57:43" (3/3) ... [2021-12-06 22:57:43,836 INFO L388 chiAutomizerObserver]: Analyzing ICFG test20.c [2021-12-06 22:57:43,880 INFO L359 BuchiCegarLoop]: Interprodecural is true [2021-12-06 22:57:43,880 INFO L360 BuchiCegarLoop]: Hoare is false [2021-12-06 22:57:43,880 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2021-12-06 22:57:43,880 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2021-12-06 22:57:43,880 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-12-06 22:57:43,880 INFO L364 BuchiCegarLoop]: Difference is false [2021-12-06 22:57:43,880 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-12-06 22:57:43,880 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2021-12-06 22:57:43,894 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) [2021-12-06 22:57:43,909 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2021-12-06 22:57:43,909 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2021-12-06 22:57:43,914 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 06.12 10:57:43 BoogieIcfgContainer [2021-12-06 22:57:43,914 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2021-12-06 22:57:43,915 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-12-06 22:57:43,915 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-12-06 22:57:43,915 INFO L275 PluginConnector]: Witness Printer initialized [2021-12-06 22:57:43,916 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.12 10:57:43" (3/4) ... [2021-12-06 22:57:43,918 INFO L140 WitnessPrinter]: No result that supports witness generation found [2021-12-06 22:57:43,919 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-12-06 22:57:43,921 INFO L158 Benchmark]: Toolchain (without parser) took 477.57ms. Allocated memory is still 111.1MB. Free memory was 74.7MB in the beginning and 48.9MB in the end (delta: 25.8MB). Peak memory consumption was 27.3MB. Max. memory is 16.1GB. [2021-12-06 22:57:43,921 INFO L158 Benchmark]: CDTParser took 0.15ms. Allocated memory is still 111.1MB. Free memory is still 90.8MB. There was no memory consumed. Max. memory is 16.1GB. [2021-12-06 22:57:43,922 INFO L158 Benchmark]: CACSL2BoogieTranslator took 152.91ms. Allocated memory is still 111.1MB. Free memory was 74.5MB in the beginning and 65.3MB in the end (delta: 9.1MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2021-12-06 22:57:43,923 INFO L158 Benchmark]: Boogie Procedure Inliner took 23.83ms. Allocated memory is still 111.1MB. Free memory was 65.3MB in the beginning and 63.8MB in the end (delta: 1.5MB). There was no memory consumed. Max. memory is 16.1GB. [2021-12-06 22:57:43,925 INFO L158 Benchmark]: Boogie Preprocessor took 13.95ms. Allocated memory is still 111.1MB. Free memory was 63.8MB in the beginning and 63.0MB in the end (delta: 795.5kB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-12-06 22:57:43,926 INFO L158 Benchmark]: RCFGBuilder took 191.09ms. Allocated memory is still 111.1MB. Free memory was 62.8MB in the beginning and 54.4MB in the end (delta: 8.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2021-12-06 22:57:43,927 INFO L158 Benchmark]: BuchiAutomizer took 86.16ms. Allocated memory is still 111.1MB. Free memory was 54.2MB in the beginning and 49.2MB in the end (delta: 4.9MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2021-12-06 22:57:43,928 INFO L158 Benchmark]: Witness Printer took 3.89ms. Allocated memory is still 111.1MB. Free memory was 49.2MB in the beginning and 48.9MB in the end (delta: 355.8kB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-12-06 22:57:43,934 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.15ms. Allocated memory is still 111.1MB. Free memory is still 90.8MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 152.91ms. Allocated memory is still 111.1MB. Free memory was 74.5MB in the beginning and 65.3MB in the end (delta: 9.1MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 23.83ms. Allocated memory is still 111.1MB. Free memory was 65.3MB in the beginning and 63.8MB in the end (delta: 1.5MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 13.95ms. Allocated memory is still 111.1MB. Free memory was 63.8MB in the beginning and 63.0MB in the end (delta: 795.5kB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 191.09ms. Allocated memory is still 111.1MB. Free memory was 62.8MB in the beginning and 54.4MB in the end (delta: 8.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * BuchiAutomizer took 86.16ms. Allocated memory is still 111.1MB. Free memory was 54.2MB in the beginning and 49.2MB in the end (delta: 4.9MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Witness Printer took 3.89ms. Allocated memory is still 111.1MB. Free memory was 49.2MB in the beginning and 48.9MB in the end (delta: 355.8kB). Peak memory consumption was 2.1MB. 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 22:57:43,978 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_11983470-287b-4932-8f9e-fdb0297a4a7b/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