./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/floats-cbmc-regression/float2.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 4e77c044 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e01c9e96-7184-49b7-b7cf-6135a361da86/bin/uautomizer-WNIpwEf4Nt/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e01c9e96-7184-49b7-b7cf-6135a361da86/bin/uautomizer-WNIpwEf4Nt/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e01c9e96-7184-49b7-b7cf-6135a361da86/bin/uautomizer-WNIpwEf4Nt/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e01c9e96-7184-49b7-b7cf-6135a361da86/bin/uautomizer-WNIpwEf4Nt/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/floats-cbmc-regression/float2.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e01c9e96-7184-49b7-b7cf-6135a361da86/bin/uautomizer-WNIpwEf4Nt/config/svcomp-Termination-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e01c9e96-7184-49b7-b7cf-6135a361da86/bin/uautomizer-WNIpwEf4Nt --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(F end) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 069e404bf7b01a351383c4004538ba52022db96a ............................................................................................................................................................................................................................. Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.2.1-dev-4e77c04 [2021-10-13 00:03:12,003 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-13 00:03:12,005 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-13 00:03:12,041 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-13 00:03:12,042 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-13 00:03:12,043 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-13 00:03:12,045 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-13 00:03:12,047 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-13 00:03:12,049 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-13 00:03:12,051 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-13 00:03:12,052 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-13 00:03:12,053 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-13 00:03:12,054 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-13 00:03:12,055 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-13 00:03:12,057 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-13 00:03:12,058 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-13 00:03:12,059 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-13 00:03:12,061 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-13 00:03:12,063 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-13 00:03:12,065 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-13 00:03:12,067 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-13 00:03:12,068 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-13 00:03:12,070 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-13 00:03:12,071 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-13 00:03:12,074 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-13 00:03:12,075 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-13 00:03:12,075 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-13 00:03:12,076 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-13 00:03:12,081 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-13 00:03:12,082 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-13 00:03:12,082 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-13 00:03:12,083 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-13 00:03:12,084 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-13 00:03:12,085 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-13 00:03:12,086 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-13 00:03:12,087 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-13 00:03:12,087 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-13 00:03:12,088 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-13 00:03:12,088 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-13 00:03:12,089 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-13 00:03:12,090 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-13 00:03:12,095 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e01c9e96-7184-49b7-b7cf-6135a361da86/bin/uautomizer-WNIpwEf4Nt/config/svcomp-Termination-32bit-Automizer_Default.epf [2021-10-13 00:03:12,132 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-13 00:03:12,139 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-13 00:03:12,140 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-10-13 00:03:12,140 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-10-13 00:03:12,141 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-10-13 00:03:12,142 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-10-13 00:03:12,142 INFO L138 SettingsManager]: * Use SBE=true [2021-10-13 00:03:12,142 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2021-10-13 00:03:12,142 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2021-10-13 00:03:12,143 INFO L138 SettingsManager]: * Use old map elimination=false [2021-10-13 00:03:12,144 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2021-10-13 00:03:12,144 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2021-10-13 00:03:12,144 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2021-10-13 00:03:12,144 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-13 00:03:12,145 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-13 00:03:12,145 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-10-13 00:03:12,145 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-13 00:03:12,145 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-13 00:03:12,145 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-13 00:03:12,146 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2021-10-13 00:03:12,146 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2021-10-13 00:03:12,146 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2021-10-13 00:03:12,146 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-13 00:03:12,147 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-13 00:03:12,147 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2021-10-13 00:03:12,147 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-13 00:03:12,147 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2021-10-13 00:03:12,147 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-13 00:03:12,148 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-10-13 00:03:12,148 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-13 00:03:12,148 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-10-13 00:03:12,149 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-13 00:03:12,150 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2021-10-13 00:03:12,150 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_e01c9e96-7184-49b7-b7cf-6135a361da86/bin/uautomizer-WNIpwEf4Nt/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e01c9e96-7184-49b7-b7cf-6135a361da86/bin/uautomizer-WNIpwEf4Nt Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 069e404bf7b01a351383c4004538ba52022db96a [2021-10-13 00:03:12,409 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-13 00:03:12,463 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-13 00:03:12,466 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-13 00:03:12,468 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-13 00:03:12,468 INFO L275 PluginConnector]: CDTParser initialized [2021-10-13 00:03:12,469 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e01c9e96-7184-49b7-b7cf-6135a361da86/bin/uautomizer-WNIpwEf4Nt/../../sv-benchmarks/c/floats-cbmc-regression/float2.c [2021-10-13 00:03:12,550 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e01c9e96-7184-49b7-b7cf-6135a361da86/bin/uautomizer-WNIpwEf4Nt/data/9bc688f67/cabfb3d642ab4283997b82ae499fbb1e/FLAG415929aad [2021-10-13 00:03:12,979 INFO L306 CDTParser]: Found 1 translation units. [2021-10-13 00:03:12,980 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e01c9e96-7184-49b7-b7cf-6135a361da86/sv-benchmarks/c/floats-cbmc-regression/float2.c [2021-10-13 00:03:12,985 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e01c9e96-7184-49b7-b7cf-6135a361da86/bin/uautomizer-WNIpwEf4Nt/data/9bc688f67/cabfb3d642ab4283997b82ae499fbb1e/FLAG415929aad [2021-10-13 00:03:13,376 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e01c9e96-7184-49b7-b7cf-6135a361da86/bin/uautomizer-WNIpwEf4Nt/data/9bc688f67/cabfb3d642ab4283997b82ae499fbb1e [2021-10-13 00:03:13,378 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-13 00:03:13,380 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-13 00:03:13,383 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-13 00:03:13,384 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-13 00:03:13,400 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-13 00:03:13,401 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 12:03:13" (1/1) ... [2021-10-13 00:03:13,402 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@284747a3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:03:13, skipping insertion in model container [2021-10-13 00:03:13,402 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 12:03:13" (1/1) ... [2021-10-13 00:03:13,409 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-13 00:03:13,425 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-13 00:03:13,558 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_e01c9e96-7184-49b7-b7cf-6135a361da86/sv-benchmarks/c/floats-cbmc-regression/float2.c[366,379] [2021-10-13 00:03:13,559 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_e01c9e96-7184-49b7-b7cf-6135a361da86/sv-benchmarks/c/floats-cbmc-regression/float2.c[420,433] [2021-10-13 00:03:13,560 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_e01c9e96-7184-49b7-b7cf-6135a361da86/sv-benchmarks/c/floats-cbmc-regression/float2.c[493,506] [2021-10-13 00:03:13,562 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_e01c9e96-7184-49b7-b7cf-6135a361da86/sv-benchmarks/c/floats-cbmc-regression/float2.c[557,570] [2021-10-13 00:03:13,563 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-13 00:03:13,583 INFO L203 MainTranslator]: Completed pre-run [2021-10-13 00:03:13,630 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_e01c9e96-7184-49b7-b7cf-6135a361da86/sv-benchmarks/c/floats-cbmc-regression/float2.c[366,379] [2021-10-13 00:03:13,632 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_e01c9e96-7184-49b7-b7cf-6135a361da86/sv-benchmarks/c/floats-cbmc-regression/float2.c[420,433] [2021-10-13 00:03:13,633 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_e01c9e96-7184-49b7-b7cf-6135a361da86/sv-benchmarks/c/floats-cbmc-regression/float2.c[493,506] [2021-10-13 00:03:13,639 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_e01c9e96-7184-49b7-b7cf-6135a361da86/sv-benchmarks/c/floats-cbmc-regression/float2.c[557,570] [2021-10-13 00:03:13,639 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-13 00:03:13,675 INFO L208 MainTranslator]: Completed translation [2021-10-13 00:03:13,676 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:03:13 WrapperNode [2021-10-13 00:03:13,676 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-13 00:03:13,679 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-13 00:03:13,680 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-13 00:03:13,680 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-13 00:03:13,688 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:03:13" (1/1) ... [2021-10-13 00:03:13,697 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:03:13" (1/1) ... [2021-10-13 00:03:13,719 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-13 00:03:13,720 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-13 00:03:13,721 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-13 00:03:13,721 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-13 00:03:13,731 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:03:13" (1/1) ... [2021-10-13 00:03:13,731 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:03:13" (1/1) ... [2021-10-13 00:03:13,746 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:03:13" (1/1) ... [2021-10-13 00:03:13,746 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:03:13" (1/1) ... [2021-10-13 00:03:13,750 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:03:13" (1/1) ... [2021-10-13 00:03:13,752 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:03:13" (1/1) ... [2021-10-13 00:03:13,753 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:03:13" (1/1) ... [2021-10-13 00:03:13,755 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-13 00:03:13,756 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-13 00:03:13,756 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-13 00:03:13,756 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-13 00:03:13,757 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:03:13" (1/1) ... [2021-10-13 00:03:13,765 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 00:03:13,777 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e01c9e96-7184-49b7-b7cf-6135a361da86/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 00:03:13,789 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e01c9e96-7184-49b7-b7cf-6135a361da86/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 00:03:13,797 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e01c9e96-7184-49b7-b7cf-6135a361da86/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2021-10-13 00:03:13,835 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-13 00:03:13,836 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-13 00:03:13,836 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-10-13 00:03:13,836 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-13 00:03:14,005 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-13 00:03:14,005 INFO L299 CfgBuilder]: Removed 4 assume(true) statements. [2021-10-13 00:03:14,007 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 12:03:14 BoogieIcfgContainer [2021-10-13 00:03:14,007 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-13 00:03:14,008 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2021-10-13 00:03:14,008 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2021-10-13 00:03:14,014 INFO L275 PluginConnector]: BuchiAutomizer initialized [2021-10-13 00:03:14,015 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-10-13 00:03:14,016 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 13.10 12:03:13" (1/3) ... [2021-10-13 00:03:14,018 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@bda254e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 13.10 12:03:14, skipping insertion in model container [2021-10-13 00:03:14,019 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-10-13 00:03:14,019 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:03:13" (2/3) ... [2021-10-13 00:03:14,019 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@bda254e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 13.10 12:03:14, skipping insertion in model container [2021-10-13 00:03:14,020 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-10-13 00:03:14,021 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 12:03:14" (3/3) ... [2021-10-13 00:03:14,022 INFO L389 chiAutomizerObserver]: Analyzing ICFG float2.c [2021-10-13 00:03:14,090 INFO L359 BuchiCegarLoop]: Interprodecural is true [2021-10-13 00:03:14,090 INFO L360 BuchiCegarLoop]: Hoare is false [2021-10-13 00:03:14,090 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2021-10-13 00:03:14,090 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2021-10-13 00:03:14,091 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-10-13 00:03:14,091 INFO L364 BuchiCegarLoop]: Difference is false [2021-10-13 00:03:14,091 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-10-13 00:03:14,091 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2021-10-13 00:03:14,113 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 12 states, 11 states have (on average 1.3636363636363635) internal successors, (15), 11 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 00:03:14,135 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2021-10-13 00:03:14,135 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2021-10-13 00:03:14,140 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 13.10 12:03:14 BoogieIcfgContainer [2021-10-13 00:03:14,140 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2021-10-13 00:03:14,143 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-13 00:03:14,143 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-13 00:03:14,143 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-13 00:03:14,144 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 12:03:14" (3/4) ... [2021-10-13 00:03:14,147 INFO L140 WitnessPrinter]: No result that supports witness generation found [2021-10-13 00:03:14,147 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-13 00:03:14,151 INFO L168 Benchmark]: Toolchain (without parser) took 768.30 ms. Allocated memory was 81.8 MB in the beginning and 102.8 MB in the end (delta: 21.0 MB). Free memory was 43.1 MB in the beginning and 64.5 MB in the end (delta: -21.4 MB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-13 00:03:14,153 INFO L168 Benchmark]: CDTParser took 0.25 ms. Allocated memory is still 81.8 MB. Free memory was 59.6 MB in the beginning and 59.6 MB in the end (delta: 63.7 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-13 00:03:14,155 INFO L168 Benchmark]: CACSL2BoogieTranslator took 292.92 ms. Allocated memory was 81.8 MB in the beginning and 102.8 MB in the end (delta: 21.0 MB). Free memory was 42.9 MB in the beginning and 81.1 MB in the end (delta: -38.2 MB). Peak memory consumption was 8.5 MB. Max. memory is 16.1 GB. [2021-10-13 00:03:14,156 INFO L168 Benchmark]: Boogie Procedure Inliner took 40.09 ms. Allocated memory is still 102.8 MB. Free memory was 81.1 MB in the beginning and 79.6 MB in the end (delta: 1.5 MB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-13 00:03:14,157 INFO L168 Benchmark]: Boogie Preprocessor took 34.37 ms. Allocated memory is still 102.8 MB. Free memory was 79.6 MB in the beginning and 78.8 MB in the end (delta: 799.5 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-13 00:03:14,158 INFO L168 Benchmark]: RCFGBuilder took 251.38 ms. Allocated memory is still 102.8 MB. Free memory was 78.8 MB in the beginning and 70.0 MB in the end (delta: 8.9 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2021-10-13 00:03:14,161 INFO L168 Benchmark]: BuchiAutomizer took 132.45 ms. Allocated memory is still 102.8 MB. Free memory was 69.6 MB in the beginning and 64.9 MB in the end (delta: 4.7 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2021-10-13 00:03:14,161 INFO L168 Benchmark]: Witness Printer took 4.37 ms. Allocated memory is still 102.8 MB. Free memory was 64.9 MB in the beginning and 64.5 MB in the end (delta: 390.1 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-13 00:03:14,172 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.25 ms. Allocated memory is still 81.8 MB. Free memory was 59.6 MB in the beginning and 59.6 MB in the end (delta: 63.7 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 292.92 ms. Allocated memory was 81.8 MB in the beginning and 102.8 MB in the end (delta: 21.0 MB). Free memory was 42.9 MB in the beginning and 81.1 MB in the end (delta: -38.2 MB). Peak memory consumption was 8.5 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 40.09 ms. Allocated memory is still 102.8 MB. Free memory was 81.1 MB in the beginning and 79.6 MB in the end (delta: 1.5 MB). There was no memory consumed. Max. memory is 16.1 GB. * Boogie Preprocessor took 34.37 ms. Allocated memory is still 102.8 MB. Free memory was 79.6 MB in the beginning and 78.8 MB in the end (delta: 799.5 kB). There was no memory consumed. Max. memory is 16.1 GB. * RCFGBuilder took 251.38 ms. Allocated memory is still 102.8 MB. Free memory was 78.8 MB in the beginning and 70.0 MB in the end (delta: 8.9 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * BuchiAutomizer took 132.45 ms. Allocated memory is still 102.8 MB. Free memory was 69.6 MB in the beginning and 64.9 MB in the end (delta: 4.7 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. * Witness Printer took 4.37 ms. Allocated memory is still 102.8 MB. Free memory was 64.9 MB in the beginning and 64.5 MB in the end (delta: 390.1 kB). 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! [2021-10-13 00:03:14,209 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e01c9e96-7184-49b7-b7cf-6135a361da86/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...