./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/termination-crafted-lit/BradleyMannaSipma-CAV2005-Fig1-modified.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 2329fc70 Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5bed3dc7-4422-45b0-8d82-1051acb3a996/bin/uautomizer-uyxdKDjOR8/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5bed3dc7-4422-45b0-8d82-1051acb3a996/bin/uautomizer-uyxdKDjOR8/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5bed3dc7-4422-45b0-8d82-1051acb3a996/bin/uautomizer-uyxdKDjOR8/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5bed3dc7-4422-45b0-8d82-1051acb3a996/bin/uautomizer-uyxdKDjOR8/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/termination-crafted-lit/BradleyMannaSipma-CAV2005-Fig1-modified.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5bed3dc7-4422-45b0-8d82-1051acb3a996/bin/uautomizer-uyxdKDjOR8/config/svcomp-Termination-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5bed3dc7-4422-45b0-8d82-1051acb3a996/bin/uautomizer-uyxdKDjOR8 --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 64bit --witnessprinter.graph.data.programhash c8c2842840d9df2fd19d5532fbc3700c74bea362cad75e31db6c666eb38ff4df --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-2329fc7 [2022-12-13 22:35:56,338 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-13 22:35:56,340 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-13 22:35:56,360 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-13 22:35:56,361 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-13 22:35:56,362 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-13 22:35:56,363 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-13 22:35:56,365 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-13 22:35:56,366 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-13 22:35:56,367 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-13 22:35:56,368 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-13 22:35:56,369 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-13 22:35:56,370 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-13 22:35:56,371 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-13 22:35:56,372 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-13 22:35:56,373 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-13 22:35:56,374 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-13 22:35:56,375 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-13 22:35:56,376 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-13 22:35:56,378 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-13 22:35:56,380 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-13 22:35:56,381 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-13 22:35:56,382 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-13 22:35:56,383 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-13 22:35:56,387 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-13 22:35:56,387 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-13 22:35:56,387 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-13 22:35:56,388 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-13 22:35:56,389 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-13 22:35:56,390 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-13 22:35:56,390 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-13 22:35:56,391 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-13 22:35:56,392 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-13 22:35:56,392 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-13 22:35:56,393 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-13 22:35:56,393 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-13 22:35:56,394 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-13 22:35:56,394 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-13 22:35:56,395 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-13 22:35:56,395 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-13 22:35:56,396 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-13 22:35:56,397 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5bed3dc7-4422-45b0-8d82-1051acb3a996/bin/uautomizer-uyxdKDjOR8/config/svcomp-Termination-64bit-Automizer_Default.epf [2022-12-13 22:35:56,419 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-13 22:35:56,419 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-13 22:35:56,419 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-12-13 22:35:56,420 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-12-13 22:35:56,421 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-12-13 22:35:56,421 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-12-13 22:35:56,421 INFO L138 SettingsManager]: * Use SBE=true [2022-12-13 22:35:56,421 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2022-12-13 22:35:56,421 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2022-12-13 22:35:56,422 INFO L138 SettingsManager]: * Use old map elimination=false [2022-12-13 22:35:56,422 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2022-12-13 22:35:56,422 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2022-12-13 22:35:56,422 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2022-12-13 22:35:56,422 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-13 22:35:56,423 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-12-13 22:35:56,423 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-13 22:35:56,423 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-13 22:35:56,423 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2022-12-13 22:35:56,423 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2022-12-13 22:35:56,424 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2022-12-13 22:35:56,424 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-13 22:35:56,424 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2022-12-13 22:35:56,424 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-13 22:35:56,424 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2022-12-13 22:35:56,424 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-13 22:35:56,425 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-12-13 22:35:56,425 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-13 22:35:56,425 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-12-13 22:35:56,426 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2022-12-13 22:35:56,426 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_5bed3dc7-4422-45b0-8d82-1051acb3a996/bin/uautomizer-uyxdKDjOR8/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5bed3dc7-4422-45b0-8d82-1051acb3a996/bin/uautomizer-uyxdKDjOR8 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> c8c2842840d9df2fd19d5532fbc3700c74bea362cad75e31db6c666eb38ff4df [2022-12-13 22:35:56,582 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-13 22:35:56,602 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-13 22:35:56,605 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-13 22:35:56,606 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-13 22:35:56,606 INFO L275 PluginConnector]: CDTParser initialized [2022-12-13 22:35:56,608 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5bed3dc7-4422-45b0-8d82-1051acb3a996/bin/uautomizer-uyxdKDjOR8/../../sv-benchmarks/c/termination-crafted-lit/BradleyMannaSipma-CAV2005-Fig1-modified.c [2022-12-13 22:35:59,227 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-13 22:35:59,367 INFO L351 CDTParser]: Found 1 translation units. [2022-12-13 22:35:59,367 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5bed3dc7-4422-45b0-8d82-1051acb3a996/sv-benchmarks/c/termination-crafted-lit/BradleyMannaSipma-CAV2005-Fig1-modified.c [2022-12-13 22:35:59,372 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5bed3dc7-4422-45b0-8d82-1051acb3a996/bin/uautomizer-uyxdKDjOR8/data/90726393c/309a673a217f4f2b8176244360b433f3/FLAG06f7ca7f5 [2022-12-13 22:35:59,383 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5bed3dc7-4422-45b0-8d82-1051acb3a996/bin/uautomizer-uyxdKDjOR8/data/90726393c/309a673a217f4f2b8176244360b433f3 [2022-12-13 22:35:59,385 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-13 22:35:59,386 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-12-13 22:35:59,387 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-13 22:35:59,387 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-13 22:35:59,391 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-13 22:35:59,391 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.12 10:35:59" (1/1) ... [2022-12-13 22:35:59,392 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3bcfa8fc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 10:35:59, skipping insertion in model container [2022-12-13 22:35:59,393 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.12 10:35:59" (1/1) ... [2022-12-13 22:35:59,400 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-13 22:35:59,411 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-13 22:35:59,516 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-13 22:35:59,520 INFO L203 MainTranslator]: Completed pre-run [2022-12-13 22:35:59,530 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-13 22:35:59,539 INFO L208 MainTranslator]: Completed translation [2022-12-13 22:35:59,540 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 10:35:59 WrapperNode [2022-12-13 22:35:59,540 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-13 22:35:59,541 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-13 22:35:59,541 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-13 22:35:59,541 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-13 22:35:59,546 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 10:35:59" (1/1) ... [2022-12-13 22:35:59,550 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 10:35:59" (1/1) ... [2022-12-13 22:35:59,563 INFO L138 Inliner]: procedures = 4, calls = 2, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 18 [2022-12-13 22:35:59,563 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-13 22:35:59,564 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-13 22:35:59,564 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-13 22:35:59,564 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-13 22:35:59,570 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 10:35:59" (1/1) ... [2022-12-13 22:35:59,571 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 10:35:59" (1/1) ... [2022-12-13 22:35:59,571 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 10:35:59" (1/1) ... [2022-12-13 22:35:59,571 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 10:35:59" (1/1) ... [2022-12-13 22:35:59,572 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 10:35:59" (1/1) ... [2022-12-13 22:35:59,575 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 10:35:59" (1/1) ... [2022-12-13 22:35:59,576 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 10:35:59" (1/1) ... [2022-12-13 22:35:59,576 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 10:35:59" (1/1) ... [2022-12-13 22:35:59,577 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-13 22:35:59,577 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-13 22:35:59,577 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-13 22:35:59,578 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-13 22:35:59,578 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 10:35:59" (1/1) ... [2022-12-13 22:35:59,583 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-12-13 22:35:59,592 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5bed3dc7-4422-45b0-8d82-1051acb3a996/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 22:35:59,602 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5bed3dc7-4422-45b0-8d82-1051acb3a996/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-12-13 22:35:59,605 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5bed3dc7-4422-45b0-8d82-1051acb3a996/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2022-12-13 22:35:59,636 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-13 22:35:59,636 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-13 22:35:59,705 INFO L235 CfgBuilder]: Building ICFG [2022-12-13 22:35:59,706 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-13 22:35:59,751 INFO L276 CfgBuilder]: Performing block encoding [2022-12-13 22:35:59,756 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-13 22:35:59,757 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2022-12-13 22:35:59,758 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 10:35:59 BoogieIcfgContainer [2022-12-13 22:35:59,759 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-13 22:35:59,759 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2022-12-13 22:35:59,760 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2022-12-13 22:35:59,763 INFO L275 PluginConnector]: BuchiAutomizer initialized [2022-12-13 22:35:59,764 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-12-13 22:35:59,764 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 13.12 10:35:59" (1/3) ... [2022-12-13 22:35:59,764 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@6ddd581e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 13.12 10:35:59, skipping insertion in model container [2022-12-13 22:35:59,765 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-12-13 22:35:59,765 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 10:35:59" (2/3) ... [2022-12-13 22:35:59,765 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@6ddd581e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 13.12 10:35:59, skipping insertion in model container [2022-12-13 22:35:59,765 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-12-13 22:35:59,765 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 10:35:59" (3/3) ... [2022-12-13 22:35:59,766 INFO L332 chiAutomizerObserver]: Analyzing ICFG BradleyMannaSipma-CAV2005-Fig1-modified.c [2022-12-13 22:35:59,814 INFO L303 stractBuchiCegarLoop]: Interprodecural is true [2022-12-13 22:35:59,815 INFO L304 stractBuchiCegarLoop]: Hoare is false [2022-12-13 22:35:59,815 INFO L305 stractBuchiCegarLoop]: Compute interpolants for ForwardPredicates [2022-12-13 22:35:59,815 INFO L306 stractBuchiCegarLoop]: Backedges is STRAIGHT_LINE [2022-12-13 22:35:59,815 INFO L307 stractBuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2022-12-13 22:35:59,815 INFO L308 stractBuchiCegarLoop]: Difference is false [2022-12-13 22:35:59,815 INFO L309 stractBuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2022-12-13 22:35:59,815 INFO L313 stractBuchiCegarLoop]: ======== Iteration 0 == of CEGAR loop == BuchiAutomatonCegarLoop ======== [2022-12-13 22:35:59,819 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 9 states, 8 states have (on average 1.5) internal successors, (12), 8 states have internal predecessors, (12), 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) [2022-12-13 22:35:59,833 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2022-12-13 22:35:59,833 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-12-13 22:35:59,833 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-12-13 22:35:59,837 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1] [2022-12-13 22:35:59,837 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1] [2022-12-13 22:35:59,838 INFO L335 stractBuchiCegarLoop]: ======== Iteration 1 ============ [2022-12-13 22:35:59,838 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 9 states, 8 states have (on average 1.5) internal successors, (12), 8 states have internal predecessors, (12), 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) [2022-12-13 22:35:59,839 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2022-12-13 22:35:59,839 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-12-13 22:35:59,839 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-12-13 22:35:59,839 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1] [2022-12-13 22:35:59,839 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1] [2022-12-13 22:35:59,845 INFO L748 eck$LassoCheckResult]: Stem: 5#$Ultimate##0true assume { :begin_inline_ULTIMATE.init } true; 7#L-1true assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet0#1, main_#t~nondet1#1, main_~y1~0#1, main_~y2~0#1;havoc main_~y1~0#1;havoc main_~y2~0#1;main_~y1~0#1 := main_#t~nondet0#1;havoc main_#t~nondet0#1;main_~y2~0#1 := main_#t~nondet1#1;havoc main_#t~nondet1#1; 9#L20true assume main_~y1~0#1 >= 0 && main_~y2~0#1 >= 0; 8#L22-2true [2022-12-13 22:35:59,845 INFO L750 eck$LassoCheckResult]: Loop: 8#L22-2true assume !!(main_~y1~0#1 != main_~y2~0#1); 3#L22true assume main_~y1~0#1 > main_~y2~0#1;main_~y1~0#1 := main_~y1~0#1 - main_~y2~0#1; 8#L22-2true [2022-12-13 22:35:59,849 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 22:35:59,850 INFO L85 PathProgramCache]: Analyzing trace with hash 29858, now seen corresponding path program 1 times [2022-12-13 22:35:59,857 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 22:35:59,857 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [839191702] [2022-12-13 22:35:59,857 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 22:35:59,858 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 22:35:59,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 22:35:59,914 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-12-13 22:35:59,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 22:35:59,928 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-12-13 22:35:59,931 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 22:35:59,931 INFO L85 PathProgramCache]: Analyzing trace with hash 1412, now seen corresponding path program 1 times [2022-12-13 22:35:59,931 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 22:35:59,932 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1982502296] [2022-12-13 22:35:59,932 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 22:35:59,932 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 22:35:59,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 22:35:59,940 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-12-13 22:35:59,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 22:35:59,944 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-12-13 22:35:59,946 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 22:35:59,946 INFO L85 PathProgramCache]: Analyzing trace with hash 28693989, now seen corresponding path program 1 times [2022-12-13 22:35:59,946 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 22:35:59,946 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1722770975] [2022-12-13 22:35:59,946 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 22:35:59,947 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 22:35:59,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 22:35:59,952 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-12-13 22:35:59,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 22:35:59,957 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-12-13 22:36:00,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 22:36:00,042 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-12-13 22:36:00,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 22:36:00,063 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 13.12 10:36:00 BoogieIcfgContainer [2022-12-13 22:36:00,063 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2022-12-13 22:36:00,063 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-12-13 22:36:00,064 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-12-13 22:36:00,064 INFO L275 PluginConnector]: Witness Printer initialized [2022-12-13 22:36:00,064 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 10:35:59" (3/4) ... [2022-12-13 22:36:00,066 INFO L134 WitnessPrinter]: Generating witness for non-termination counterexample [2022-12-13 22:36:00,091 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5bed3dc7-4422-45b0-8d82-1051acb3a996/bin/uautomizer-uyxdKDjOR8/witness.graphml [2022-12-13 22:36:00,091 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-12-13 22:36:00,092 INFO L158 Benchmark]: Toolchain (without parser) took 705.95ms. Allocated memory is still 142.6MB. Free memory was 112.7MB in the beginning and 73.4MB in the end (delta: 39.2MB). Peak memory consumption was 37.7MB. Max. memory is 16.1GB. [2022-12-13 22:36:00,093 INFO L158 Benchmark]: CDTParser took 0.19ms. Allocated memory is still 142.6MB. Free memory was 96.7MB in the beginning and 96.6MB in the end (delta: 159.3kB). There was no memory consumed. Max. memory is 16.1GB. [2022-12-13 22:36:00,093 INFO L158 Benchmark]: CACSL2BoogieTranslator took 153.03ms. Allocated memory is still 142.6MB. Free memory was 112.4MB in the beginning and 103.5MB in the end (delta: 8.8MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2022-12-13 22:36:00,094 INFO L158 Benchmark]: Boogie Procedure Inliner took 22.67ms. Allocated memory is still 142.6MB. Free memory was 103.5MB in the beginning and 102.2MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-12-13 22:36:00,094 INFO L158 Benchmark]: Boogie Preprocessor took 13.26ms. Allocated memory is still 142.6MB. Free memory was 102.2MB in the beginning and 101.2MB in the end (delta: 945.4kB). There was no memory consumed. Max. memory is 16.1GB. [2022-12-13 22:36:00,095 INFO L158 Benchmark]: RCFGBuilder took 181.39ms. Allocated memory is still 142.6MB. Free memory was 100.9MB in the beginning and 92.6MB in the end (delta: 8.3MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2022-12-13 22:36:00,095 INFO L158 Benchmark]: BuchiAutomizer took 303.57ms. Allocated memory is still 142.6MB. Free memory was 92.6MB in the beginning and 74.9MB in the end (delta: 17.7MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. [2022-12-13 22:36:00,095 INFO L158 Benchmark]: Witness Printer took 27.63ms. Allocated memory is still 142.6MB. Free memory was 74.9MB in the beginning and 73.4MB in the end (delta: 1.5MB). There was no memory consumed. Max. memory is 16.1GB. [2022-12-13 22:36:00,098 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.19ms. Allocated memory is still 142.6MB. Free memory was 96.7MB in the beginning and 96.6MB in the end (delta: 159.3kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 153.03ms. Allocated memory is still 142.6MB. Free memory was 112.4MB in the beginning and 103.5MB in the end (delta: 8.8MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 22.67ms. Allocated memory is still 142.6MB. Free memory was 103.5MB in the beginning and 102.2MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 13.26ms. Allocated memory is still 142.6MB. Free memory was 102.2MB in the beginning and 101.2MB in the end (delta: 945.4kB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 181.39ms. Allocated memory is still 142.6MB. Free memory was 100.9MB in the beginning and 92.6MB in the end (delta: 8.3MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * BuchiAutomizer took 303.57ms. Allocated memory is still 142.6MB. Free memory was 92.6MB in the beginning and 74.9MB in the end (delta: 17.7MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. * Witness Printer took 27.63ms. Allocated memory is still 142.6MB. Free memory was 74.9MB in the beginning and 73.4MB in the end (delta: 1.5MB). There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Trivial decomposition into one nonterminating module. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 0.2s and 1 iterations. TraceHistogramMax:1. Analysis of lassos took 0.2s. 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: nont1 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 InitialAbstractionConstructionTime: 0.0s - TerminationAnalysisResult: Nontermination possible Buchi Automizer proved that your program is nonterminating for some inputs - LassoShapedNonTerminationArgument [Line: 21]: Nontermination argument in form of an infinite program execution. Nontermination argument in form of an infinite program execution. Stem: [L17] int y1, y2; [L18] y1 = __VERIFIER_nondet_int() [L19] y2 = __VERIFIER_nondet_int() [L20] COND TRUE y1 >= 0 && y2 >= 0 VAL [y1=1, y2=0] Loop: [L21] COND TRUE y1 != y2 [L22] COND TRUE y1 > y2 [L23] y1 = y1 - y2 End of lasso representation. - StatisticsResult: NonterminationArgumentStatistics Fixpoint - NonterminatingLassoResult [Line: 21]: Nonterminating execution Found a nonterminating execution for the following lasso shaped sequence of statements. Stem: [L17] int y1, y2; [L18] y1 = __VERIFIER_nondet_int() [L19] y2 = __VERIFIER_nondet_int() [L20] COND TRUE y1 >= 0 && y2 >= 0 VAL [y1=1, y2=0] Loop: [L21] COND TRUE y1 != y2 [L22] COND TRUE y1 > y2 [L23] y1 = y1 - y2 End of lasso representation. RESULT: Ultimate proved your program to be incorrect! [2022-12-13 22:36:00,116 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5bed3dc7-4422-45b0-8d82-1051acb3a996/bin/uautomizer-uyxdKDjOR8/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 Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE(TERM)