./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/loop-new/count_by_2.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 63182f13 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab98d03f-68dc-461a-9811-2b137bc05f98/bin/uautomizer-YU5uOKAj3y/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab98d03f-68dc-461a-9811-2b137bc05f98/bin/uautomizer-YU5uOKAj3y/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab98d03f-68dc-461a-9811-2b137bc05f98/bin/uautomizer-YU5uOKAj3y/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab98d03f-68dc-461a-9811-2b137bc05f98/bin/uautomizer-YU5uOKAj3y/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/loop-new/count_by_2.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab98d03f-68dc-461a-9811-2b137bc05f98/bin/uautomizer-YU5uOKAj3y/config/svcomp-Termination-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab98d03f-68dc-461a-9811-2b137bc05f98/bin/uautomizer-YU5uOKAj3y --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 86d4e5d9ff4808cbd51f54a8e918c7da7f8f3d0797ade1f0adcb3da91d131026 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-63182f1 [2021-11-13 18:12:04,005 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-13 18:12:04,006 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-13 18:12:04,040 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-13 18:12:04,041 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-13 18:12:04,042 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-13 18:12:04,044 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-13 18:12:04,047 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-13 18:12:04,049 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-13 18:12:04,050 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-13 18:12:04,052 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-13 18:12:04,053 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-13 18:12:04,054 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-13 18:12:04,055 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-13 18:12:04,057 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-13 18:12:04,059 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-13 18:12:04,060 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-13 18:12:04,062 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-13 18:12:04,064 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-13 18:12:04,071 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-13 18:12:04,076 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-13 18:12:04,080 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-13 18:12:04,082 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-13 18:12:04,085 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-13 18:12:04,089 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-13 18:12:04,095 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-13 18:12:04,096 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-13 18:12:04,097 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-13 18:12:04,099 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-13 18:12:04,100 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-13 18:12:04,102 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-13 18:12:04,103 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-13 18:12:04,104 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-13 18:12:04,105 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-13 18:12:04,107 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-13 18:12:04,108 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-13 18:12:04,109 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-13 18:12:04,110 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-13 18:12:04,110 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-13 18:12:04,111 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-13 18:12:04,112 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-13 18:12:04,113 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab98d03f-68dc-461a-9811-2b137bc05f98/bin/uautomizer-YU5uOKAj3y/config/svcomp-Termination-32bit-Automizer_Default.epf [2021-11-13 18:12:04,163 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-13 18:12:04,163 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-13 18:12:04,164 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-13 18:12:04,165 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-13 18:12:04,166 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-13 18:12:04,166 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-13 18:12:04,166 INFO L138 SettingsManager]: * Use SBE=true [2021-11-13 18:12:04,167 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2021-11-13 18:12:04,167 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2021-11-13 18:12:04,167 INFO L138 SettingsManager]: * Use old map elimination=false [2021-11-13 18:12:04,168 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2021-11-13 18:12:04,169 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2021-11-13 18:12:04,169 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2021-11-13 18:12:04,169 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-13 18:12:04,170 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-13 18:12:04,170 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-11-13 18:12:04,170 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-13 18:12:04,170 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-13 18:12:04,170 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-13 18:12:04,171 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2021-11-13 18:12:04,171 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2021-11-13 18:12:04,171 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2021-11-13 18:12:04,171 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-13 18:12:04,172 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-13 18:12:04,172 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2021-11-13 18:12:04,172 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-13 18:12:04,174 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2021-11-13 18:12:04,175 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-13 18:12:04,175 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-13 18:12:04,175 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-13 18:12:04,175 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-11-13 18:12:04,176 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-13 18:12:04,178 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2021-11-13 18:12:04,178 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_ab98d03f-68dc-461a-9811-2b137bc05f98/bin/uautomizer-YU5uOKAj3y/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab98d03f-68dc-461a-9811-2b137bc05f98/bin/uautomizer-YU5uOKAj3y Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 86d4e5d9ff4808cbd51f54a8e918c7da7f8f3d0797ade1f0adcb3da91d131026 [2021-11-13 18:12:04,461 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-13 18:12:04,487 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-13 18:12:04,490 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-13 18:12:04,491 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-13 18:12:04,492 INFO L275 PluginConnector]: CDTParser initialized [2021-11-13 18:12:04,494 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab98d03f-68dc-461a-9811-2b137bc05f98/bin/uautomizer-YU5uOKAj3y/../../sv-benchmarks/c/loop-new/count_by_2.i [2021-11-13 18:12:04,572 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab98d03f-68dc-461a-9811-2b137bc05f98/bin/uautomizer-YU5uOKAj3y/data/db921dad7/7cbf2a3f547a4d3aa16cea47ef425812/FLAG53c813027 [2021-11-13 18:12:05,088 INFO L306 CDTParser]: Found 1 translation units. [2021-11-13 18:12:05,090 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab98d03f-68dc-461a-9811-2b137bc05f98/sv-benchmarks/c/loop-new/count_by_2.i [2021-11-13 18:12:05,104 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab98d03f-68dc-461a-9811-2b137bc05f98/bin/uautomizer-YU5uOKAj3y/data/db921dad7/7cbf2a3f547a4d3aa16cea47ef425812/FLAG53c813027 [2021-11-13 18:12:05,470 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab98d03f-68dc-461a-9811-2b137bc05f98/bin/uautomizer-YU5uOKAj3y/data/db921dad7/7cbf2a3f547a4d3aa16cea47ef425812 [2021-11-13 18:12:05,473 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-13 18:12:05,474 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-13 18:12:05,478 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-13 18:12:05,478 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-13 18:12:05,482 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-13 18:12:05,483 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 06:12:05" (1/1) ... [2021-11-13 18:12:05,485 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@404ca19a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 06:12:05, skipping insertion in model container [2021-11-13 18:12:05,486 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 06:12:05" (1/1) ... [2021-11-13 18:12:05,493 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-13 18:12:05,517 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-13 18:12:05,703 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab98d03f-68dc-461a-9811-2b137bc05f98/sv-benchmarks/c/loop-new/count_by_2.i[891,904] [2021-11-13 18:12:05,707 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-13 18:12:05,716 INFO L203 MainTranslator]: Completed pre-run [2021-11-13 18:12:05,727 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_ab98d03f-68dc-461a-9811-2b137bc05f98/sv-benchmarks/c/loop-new/count_by_2.i[891,904] [2021-11-13 18:12:05,729 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-13 18:12:05,743 INFO L208 MainTranslator]: Completed translation [2021-11-13 18:12:05,744 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 06:12:05 WrapperNode [2021-11-13 18:12:05,744 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-13 18:12:05,746 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-13 18:12:05,746 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-13 18:12:05,746 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-13 18:12:05,754 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 06:12:05" (1/1) ... [2021-11-13 18:12:05,761 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 06:12:05" (1/1) ... [2021-11-13 18:12:05,779 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-13 18:12:05,780 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-13 18:12:05,780 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-13 18:12:05,780 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-13 18:12:05,789 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 06:12:05" (1/1) ... [2021-11-13 18:12:05,789 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 06:12:05" (1/1) ... [2021-11-13 18:12:05,790 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 06:12:05" (1/1) ... [2021-11-13 18:12:05,791 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 06:12:05" (1/1) ... [2021-11-13 18:12:05,797 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 06:12:05" (1/1) ... [2021-11-13 18:12:05,802 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 06:12:05" (1/1) ... [2021-11-13 18:12:05,807 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 06:12:05" (1/1) ... [2021-11-13 18:12:05,810 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-13 18:12:05,811 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-13 18:12:05,811 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-13 18:12:05,812 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-13 18:12:05,814 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 06:12:05" (1/1) ... [2021-11-13 18:12:05,822 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-13 18:12:05,834 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab98d03f-68dc-461a-9811-2b137bc05f98/bin/uautomizer-YU5uOKAj3y/z3 [2021-11-13 18:12:05,856 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab98d03f-68dc-461a-9811-2b137bc05f98/bin/uautomizer-YU5uOKAj3y/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-13 18:12:05,880 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab98d03f-68dc-461a-9811-2b137bc05f98/bin/uautomizer-YU5uOKAj3y/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2021-11-13 18:12:05,910 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-13 18:12:05,910 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-13 18:12:05,910 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-13 18:12:05,911 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-13 18:12:06,098 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-13 18:12:06,098 INFO L299 CfgBuilder]: Removed 1 assume(true) statements. [2021-11-13 18:12:06,100 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 06:12:06 BoogieIcfgContainer [2021-11-13 18:12:06,101 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-13 18:12:06,102 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2021-11-13 18:12:06,102 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2021-11-13 18:12:06,105 INFO L275 PluginConnector]: BuchiAutomizer initialized [2021-11-13 18:12:06,106 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-11-13 18:12:06,106 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 13.11 06:12:05" (1/3) ... [2021-11-13 18:12:06,108 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@26c06984 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 13.11 06:12:06, skipping insertion in model container [2021-11-13 18:12:06,108 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-11-13 18:12:06,108 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 06:12:05" (2/3) ... [2021-11-13 18:12:06,109 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@26c06984 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 13.11 06:12:06, skipping insertion in model container [2021-11-13 18:12:06,109 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-11-13 18:12:06,109 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 06:12:06" (3/3) ... [2021-11-13 18:12:06,114 INFO L388 chiAutomizerObserver]: Analyzing ICFG count_by_2.i [2021-11-13 18:12:06,157 INFO L359 BuchiCegarLoop]: Interprodecural is true [2021-11-13 18:12:06,158 INFO L360 BuchiCegarLoop]: Hoare is false [2021-11-13 18:12:06,158 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2021-11-13 18:12:06,158 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2021-11-13 18:12:06,158 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-11-13 18:12:06,158 INFO L364 BuchiCegarLoop]: Difference is false [2021-11-13 18:12:06,158 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-11-13 18:12:06,159 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2021-11-13 18:12:06,173 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 11 states, 10 states have (on average 1.3) internal successors, (13), 10 states have internal predecessors, (13), 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) [2021-11-13 18:12:06,191 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2021-11-13 18:12:06,191 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-11-13 18:12:06,191 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-11-13 18:12:06,197 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1] [2021-11-13 18:12:06,197 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2021-11-13 18:12:06,197 INFO L425 BuchiCegarLoop]: ======== Iteration 1============ [2021-11-13 18:12:06,198 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 11 states, 10 states have (on average 1.3) internal successors, (13), 10 states have internal predecessors, (13), 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) [2021-11-13 18:12:06,200 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2021-11-13 18:12:06,200 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-11-13 18:12:06,200 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-11-13 18:12:06,201 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1] [2021-11-13 18:12:06,201 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2021-11-13 18:12:06,207 INFO L791 eck$LassoCheckResult]: Stem: 5#ULTIMATE.startENTRYtrue assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string0.base, #t~string0.offset := #Ultimate.allocOnStack(2);call write~init~int(48, #t~string0.base, #t~string0.offset, 1);call write~init~int(0, #t~string0.base, 1 + #t~string0.offset, 1);call #t~string1.base, #t~string1.offset := #Ultimate.allocOnStack(9); 10#L-1true assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_~i~0#1;havoc main_~i~0#1;main_~i~0#1 := 0; 12#L26-3true [2021-11-13 18:12:06,208 INFO L793 eck$LassoCheckResult]: Loop: 12#L26-3true assume !!(main_~i~0#1 < 1000000); 8#L26-2true main_~i~0#1 := 2 + main_~i~0#1; 12#L26-3true [2021-11-13 18:12:06,217 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 18:12:06,217 INFO L85 PathProgramCache]: Analyzing trace with hash 963, now seen corresponding path program 1 times [2021-11-13 18:12:06,226 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-13 18:12:06,228 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1292765188] [2021-11-13 18:12:06,228 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 18:12:06,229 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-13 18:12:06,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-13 18:12:06,362 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-13 18:12:06,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-13 18:12:06,424 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-11-13 18:12:06,428 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 18:12:06,428 INFO L85 PathProgramCache]: Analyzing trace with hash 1283, now seen corresponding path program 1 times [2021-11-13 18:12:06,428 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-13 18:12:06,430 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1644761755] [2021-11-13 18:12:06,430 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 18:12:06,431 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-13 18:12:06,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-13 18:12:06,444 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-13 18:12:06,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-13 18:12:06,457 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-11-13 18:12:06,463 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 18:12:06,464 INFO L85 PathProgramCache]: Analyzing trace with hash 925765, now seen corresponding path program 1 times [2021-11-13 18:12:06,464 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-13 18:12:06,465 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1540508106] [2021-11-13 18:12:06,465 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 18:12:06,465 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-13 18:12:06,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-13 18:12:06,501 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-13 18:12:06,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-13 18:12:06,521 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-11-13 18:12:06,629 INFO L210 LassoAnalysis]: Preferences: [2021-11-13 18:12:06,630 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-11-13 18:12:06,630 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-11-13 18:12:06,630 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-11-13 18:12:06,630 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2021-11-13 18:12:06,631 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-13 18:12:06,631 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-11-13 18:12:06,631 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-11-13 18:12:06,631 INFO L133 ssoRankerPreferences]: Filename of dumped script: count_by_2.i_Iteration1_Loop [2021-11-13 18:12:06,631 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-11-13 18:12:06,631 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-11-13 18:12:06,649 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-13 18:12:06,703 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-11-13 18:12:06,704 INFO L404 LassoAnalysis]: Checking for nontermination... [2021-11-13 18:12:06,706 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-13 18:12:06,721 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab98d03f-68dc-461a-9811-2b137bc05f98/bin/uautomizer-YU5uOKAj3y/z3 [2021-11-13 18:12:06,723 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab98d03f-68dc-461a-9811-2b137bc05f98/bin/uautomizer-YU5uOKAj3y/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-13 18:12:06,725 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab98d03f-68dc-461a-9811-2b137bc05f98/bin/uautomizer-YU5uOKAj3y/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Waiting until timeout for monitored process [2021-11-13 18:12:06,726 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-11-13 18:12:06,726 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-11-13 18:12:06,794 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab98d03f-68dc-461a-9811-2b137bc05f98/bin/uautomizer-YU5uOKAj3y/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Forceful destruction successful, exit code 0 [2021-11-13 18:12:06,795 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-13 18:12:06,795 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab98d03f-68dc-461a-9811-2b137bc05f98/bin/uautomizer-YU5uOKAj3y/z3 [2021-11-13 18:12:06,797 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab98d03f-68dc-461a-9811-2b137bc05f98/bin/uautomizer-YU5uOKAj3y/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-13 18:12:06,807 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2021-11-13 18:12:06,807 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-11-13 18:12:06,842 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab98d03f-68dc-461a-9811-2b137bc05f98/bin/uautomizer-YU5uOKAj3y/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Waiting until timeout for monitored process [2021-11-13 18:12:06,887 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2021-11-13 18:12:06,894 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab98d03f-68dc-461a-9811-2b137bc05f98/bin/uautomizer-YU5uOKAj3y/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Forceful destruction successful, exit code 0 [2021-11-13 18:12:06,895 INFO L210 LassoAnalysis]: Preferences: [2021-11-13 18:12:06,895 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-11-13 18:12:06,895 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-11-13 18:12:06,895 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-11-13 18:12:06,895 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2021-11-13 18:12:06,895 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-13 18:12:06,895 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-11-13 18:12:06,895 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-11-13 18:12:06,896 INFO L133 ssoRankerPreferences]: Filename of dumped script: count_by_2.i_Iteration1_Loop [2021-11-13 18:12:06,896 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-11-13 18:12:06,896 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-11-13 18:12:06,897 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-13 18:12:06,921 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-11-13 18:12:06,926 INFO L490 LassoAnalysis]: Using template 'affine'. [2021-11-13 18:12:06,927 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-13 18:12:06,927 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab98d03f-68dc-461a-9811-2b137bc05f98/bin/uautomizer-YU5uOKAj3y/z3 [2021-11-13 18:12:06,928 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab98d03f-68dc-461a-9811-2b137bc05f98/bin/uautomizer-YU5uOKAj3y/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-13 18:12:06,934 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-11-13 18:12:06,943 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-13 18:12:06,944 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-11-13 18:12:06,944 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-13 18:12:06,944 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-13 18:12:06,945 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-13 18:12:06,947 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-11-13 18:12:06,947 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-11-13 18:12:06,950 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab98d03f-68dc-461a-9811-2b137bc05f98/bin/uautomizer-YU5uOKAj3y/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Waiting until timeout for monitored process [2021-11-13 18:12:06,959 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2021-11-13 18:12:06,965 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2021-11-13 18:12:06,965 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. [2021-11-13 18:12:06,967 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-13 18:12:06,967 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab98d03f-68dc-461a-9811-2b137bc05f98/bin/uautomizer-YU5uOKAj3y/z3 [2021-11-13 18:12:06,968 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab98d03f-68dc-461a-9811-2b137bc05f98/bin/uautomizer-YU5uOKAj3y/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-13 18:12:06,973 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2021-11-13 18:12:06,974 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2021-11-13 18:12:06,974 INFO L513 LassoAnalysis]: Proved termination. [2021-11-13 18:12:06,975 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~i~0#1) = -1*ULTIMATE.start_main_~i~0#1 + 1000000 Supporting invariants [] [2021-11-13 18:12:06,998 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab98d03f-68dc-461a-9811-2b137bc05f98/bin/uautomizer-YU5uOKAj3y/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Waiting until timeout for monitored process [2021-11-13 18:12:07,011 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab98d03f-68dc-461a-9811-2b137bc05f98/bin/uautomizer-YU5uOKAj3y/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Forceful destruction successful, exit code 0 [2021-11-13 18:12:07,013 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2021-11-13 18:12:07,037 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 18:12:07,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:12:07,052 INFO L263 TraceCheckSpWp]: Trace formula consists of 27 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-13 18:12:07,053 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-13 18:12:07,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:12:07,067 WARN L261 TraceCheckSpWp]: Trace formula consists of 5 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-13 18:12:07,068 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-13 18:12:07,114 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-13 18:12:07,157 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates [2021-11-13 18:12:07,158 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand has 11 states, 10 states have (on average 1.3) internal successors, (13), 10 states have internal predecessors, (13), 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) Second operand has 3 states, 3 states have (on average 1.3333333333333333) internal successors, (4), 3 states have internal predecessors, (4), 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) [2021-11-13 18:12:07,200 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand has 11 states, 10 states have (on average 1.3) internal successors, (13), 10 states have internal predecessors, (13), 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). Second operand has 3 states, 3 states have (on average 1.3333333333333333) internal successors, (4), 3 states have internal predecessors, (4), 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) Result 27 states and 33 transitions. Complement of second has 7 states. [2021-11-13 18:12:07,202 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 5 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2021-11-13 18:12:07,207 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 1.3333333333333333) internal successors, (4), 3 states have internal predecessors, (4), 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) [2021-11-13 18:12:07,207 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 20 transitions. [2021-11-13 18:12:07,209 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 20 transitions. Stem has 2 letters. Loop has 2 letters. [2021-11-13 18:12:07,209 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-11-13 18:12:07,210 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 20 transitions. Stem has 4 letters. Loop has 2 letters. [2021-11-13 18:12:07,210 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-11-13 18:12:07,210 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 20 transitions. Stem has 2 letters. Loop has 4 letters. [2021-11-13 18:12:07,210 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-11-13 18:12:07,211 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 27 states and 33 transitions. [2021-11-13 18:12:07,214 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2021-11-13 18:12:07,217 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 27 states to 0 states and 0 transitions. [2021-11-13 18:12:07,218 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2021-11-13 18:12:07,218 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2021-11-13 18:12:07,219 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2021-11-13 18:12:07,219 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-11-13 18:12:07,219 INFO L681 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-11-13 18:12:07,219 INFO L704 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-11-13 18:12:07,219 INFO L587 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-11-13 18:12:07,219 INFO L425 BuchiCegarLoop]: ======== Iteration 2============ [2021-11-13 18:12:07,220 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2021-11-13 18:12:07,220 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2021-11-13 18:12:07,220 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2021-11-13 18:12:07,227 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 13.11 06:12:07 BoogieIcfgContainer [2021-11-13 18:12:07,227 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2021-11-13 18:12:07,228 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-11-13 18:12:07,228 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-11-13 18:12:07,228 INFO L275 PluginConnector]: Witness Printer initialized [2021-11-13 18:12:07,229 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 06:12:06" (3/4) ... [2021-11-13 18:12:07,232 INFO L140 WitnessPrinter]: No result that supports witness generation found [2021-11-13 18:12:07,232 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-11-13 18:12:07,233 INFO L158 Benchmark]: Toolchain (without parser) took 1758.26ms. Allocated memory was 79.7MB in the beginning and 96.5MB in the end (delta: 16.8MB). Free memory was 42.1MB in the beginning and 53.3MB in the end (delta: -11.2MB). Peak memory consumption was 5.6MB. Max. memory is 16.1GB. [2021-11-13 18:12:07,234 INFO L158 Benchmark]: CDTParser took 0.25ms. Allocated memory is still 79.7MB. Free memory was 58.1MB in the beginning and 58.1MB in the end (delta: 45.4kB). There was no memory consumed. Max. memory is 16.1GB. [2021-11-13 18:12:07,235 INFO L158 Benchmark]: CACSL2BoogieTranslator took 266.82ms. Allocated memory was 79.7MB in the beginning and 96.5MB in the end (delta: 16.8MB). Free memory was 41.9MB in the beginning and 73.3MB in the end (delta: -31.5MB). Peak memory consumption was 5.7MB. Max. memory is 16.1GB. [2021-11-13 18:12:07,235 INFO L158 Benchmark]: Boogie Procedure Inliner took 33.23ms. Allocated memory is still 96.5MB. Free memory was 73.3MB in the beginning and 72.0MB in the end (delta: 1.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-11-13 18:12:07,236 INFO L158 Benchmark]: Boogie Preprocessor took 30.52ms. Allocated memory is still 96.5MB. Free memory was 72.0MB in the beginning and 71.1MB in the end (delta: 892.1kB). There was no memory consumed. Max. memory is 16.1GB. [2021-11-13 18:12:07,237 INFO L158 Benchmark]: RCFGBuilder took 289.51ms. Allocated memory is still 96.5MB. Free memory was 70.9MB in the beginning and 62.6MB in the end (delta: 8.3MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2021-11-13 18:12:07,237 INFO L158 Benchmark]: BuchiAutomizer took 1125.65ms. Allocated memory is still 96.5MB. Free memory was 62.4MB in the beginning and 53.3MB in the end (delta: 9.1MB). Peak memory consumption was 14.4MB. Max. memory is 16.1GB. [2021-11-13 18:12:07,238 INFO L158 Benchmark]: Witness Printer took 4.32ms. Allocated memory is still 96.5MB. Free memory is still 53.3MB. There was no memory consumed. Max. memory is 16.1GB. [2021-11-13 18:12:07,241 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.25ms. Allocated memory is still 79.7MB. Free memory was 58.1MB in the beginning and 58.1MB in the end (delta: 45.4kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 266.82ms. Allocated memory was 79.7MB in the beginning and 96.5MB in the end (delta: 16.8MB). Free memory was 41.9MB in the beginning and 73.3MB in the end (delta: -31.5MB). Peak memory consumption was 5.7MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 33.23ms. Allocated memory is still 96.5MB. Free memory was 73.3MB in the beginning and 72.0MB in the end (delta: 1.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 30.52ms. Allocated memory is still 96.5MB. Free memory was 72.0MB in the beginning and 71.1MB in the end (delta: 892.1kB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 289.51ms. Allocated memory is still 96.5MB. Free memory was 70.9MB in the beginning and 62.6MB in the end (delta: 8.3MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. * BuchiAutomizer took 1125.65ms. Allocated memory is still 96.5MB. Free memory was 62.4MB in the beginning and 53.3MB in the end (delta: 9.1MB). Peak memory consumption was 14.4MB. Max. memory is 16.1GB. * Witness Printer took 4.32ms. Allocated memory is still 96.5MB. Free memory is still 53.3MB. 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 Your program was decomposed into 1 terminating modules (0 trivial, 1 deterministic, 0 nondeterministic). One deterministic module has affine ranking function -1 * i + 1000000 and consists of 5 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 1.0s and 2 iterations. TraceHistogramMax:1. Analysis of lassos took 0.8s. Construction of modules took 0.0s. Büchi inclusion checks took 0.1s. Highest rank in rank-based complementation 3. Minimization of det autom 1. 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 0 states and ocurred in iteration 1. Nontrivial modules had stage [1, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 10 SdHoareTripleChecker+Valid, 10.56ms IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 9 mSDsluCounter, 17 SdHoareTripleChecker+Invalid, 8.44ms Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 10 mSDsCounter, 2 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 9 IncrementalHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 2 mSolverCounterUnsat, 7 mSDtfsCounter, 9 mSolverCounterSat, 1.03ms SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown LassoAnalysisResults: nont0 unkn0 SFLI0 SFLT1 conc0 concLT0 SILN0 SILU0 SILI0 SILT0 lasso0 LassoPreprocessingBenchmarks: Lassos: inital10 mio100 ax100 hnf100 lsp100 ukn100 mio100 lsp100 div100 bol100 ite100 ukn100 eq160 hnf93 smp100 dnf100 smp100 tf113 neg100 sie111 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: sat Degree: 0 Time: 47ms VariablesStem: 0 VariablesLoop: 2 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 0 MotzkinApplications: 2 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 0 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 1 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.1s - TerminationAnalysisResult: Termination proven Buchi Automizer proved that your program is terminating RESULT: Ultimate proved your program to be correct! [2021-11-13 18:12:07,288 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab98d03f-68dc-461a-9811-2b137bc05f98/bin/uautomizer-YU5uOKAj3y/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Forceful destruction successful, exit code 0 [2021-11-13 18:12:07,504 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab98d03f-68dc-461a-9811-2b137bc05f98/bin/uautomizer-YU5uOKAj3y/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