./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/bitvector/jain_2-1.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 9bd2c7ff 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_975a5c4a-3979-471e-9249-7d1811f5f430/bin/uautomizer-verify-uCwYo4JHxu/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_975a5c4a-3979-471e-9249-7d1811f5f430/bin/uautomizer-verify-uCwYo4JHxu/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_975a5c4a-3979-471e-9249-7d1811f5f430/bin/uautomizer-verify-uCwYo4JHxu/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_975a5c4a-3979-471e-9249-7d1811f5f430/bin/uautomizer-verify-uCwYo4JHxu/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/bitvector/jain_2-1.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_975a5c4a-3979-471e-9249-7d1811f5f430/bin/uautomizer-verify-uCwYo4JHxu/config/svcomp-Termination-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_975a5c4a-3979-471e-9249-7d1811f5f430/bin/uautomizer-verify-uCwYo4JHxu --witnessprinter.witness.filename witness --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 92241f3227c0a2a678e533c7e4602bca2cd56efbb9188155527144a0988b4416 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-9bd2c7f [2023-11-19 07:59:00,262 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-19 07:59:00,353 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_975a5c4a-3979-471e-9249-7d1811f5f430/bin/uautomizer-verify-uCwYo4JHxu/config/svcomp-Termination-32bit-Automizer_Default.epf [2023-11-19 07:59:00,360 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-19 07:59:00,361 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-19 07:59:00,394 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-19 07:59:00,395 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-19 07:59:00,396 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-19 07:59:00,398 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-19 07:59:00,399 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-19 07:59:00,399 INFO L153 SettingsManager]: * Use SBE=true [2023-11-19 07:59:00,400 INFO L151 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2023-11-19 07:59:00,401 INFO L153 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2023-11-19 07:59:00,402 INFO L153 SettingsManager]: * Use old map elimination=false [2023-11-19 07:59:00,403 INFO L153 SettingsManager]: * Use external solver (rank synthesis)=false [2023-11-19 07:59:00,403 INFO L153 SettingsManager]: * Use only trivial implications for array writes=true [2023-11-19 07:59:00,404 INFO L153 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2023-11-19 07:59:00,405 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-19 07:59:00,406 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2023-11-19 07:59:00,406 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-19 07:59:00,407 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-19 07:59:00,408 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-19 07:59:00,409 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-19 07:59:00,409 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2023-11-19 07:59:00,410 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2023-11-19 07:59:00,410 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2023-11-19 07:59:00,411 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-19 07:59:00,412 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-19 07:59:00,412 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-19 07:59:00,413 INFO L153 SettingsManager]: * Assume nondeterminstic values are in range=false [2023-11-19 07:59:00,413 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-19 07:59:00,414 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-19 07:59:00,415 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-19 07:59:00,415 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-19 07:59:00,416 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-19 07:59:00,417 INFO L151 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2023-11-19 07:59:00,418 INFO L153 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_975a5c4a-3979-471e-9249-7d1811f5f430/bin/uautomizer-verify-uCwYo4JHxu/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_975a5c4a-3979-471e-9249-7d1811f5f430/bin/uautomizer-verify-uCwYo4JHxu Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 92241f3227c0a2a678e533c7e4602bca2cd56efbb9188155527144a0988b4416 [2023-11-19 07:59:00,754 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-19 07:59:00,791 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-19 07:59:00,795 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-19 07:59:00,799 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-19 07:59:00,800 INFO L274 PluginConnector]: CDTParser initialized [2023-11-19 07:59:00,801 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_975a5c4a-3979-471e-9249-7d1811f5f430/bin/uautomizer-verify-uCwYo4JHxu/../../sv-benchmarks/c/bitvector/jain_2-1.c [2023-11-19 07:59:03,936 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-19 07:59:04,166 INFO L384 CDTParser]: Found 1 translation units. [2023-11-19 07:59:04,167 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_975a5c4a-3979-471e-9249-7d1811f5f430/sv-benchmarks/c/bitvector/jain_2-1.c [2023-11-19 07:59:04,177 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_975a5c4a-3979-471e-9249-7d1811f5f430/bin/uautomizer-verify-uCwYo4JHxu/data/56d2c9472/c865584983e94b69a328f36603fe31ef/FLAG80550f91e [2023-11-19 07:59:04,194 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_975a5c4a-3979-471e-9249-7d1811f5f430/bin/uautomizer-verify-uCwYo4JHxu/data/56d2c9472/c865584983e94b69a328f36603fe31ef [2023-11-19 07:59:04,198 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-19 07:59:04,200 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-19 07:59:04,201 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-19 07:59:04,202 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-19 07:59:04,209 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-19 07:59:04,210 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 07:59:04" (1/1) ... [2023-11-19 07:59:04,211 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@633b5093 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:59:04, skipping insertion in model container [2023-11-19 07:59:04,212 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 07:59:04" (1/1) ... [2023-11-19 07:59:04,239 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-19 07:59:04,408 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 07:59:04,423 INFO L202 MainTranslator]: Completed pre-run [2023-11-19 07:59:04,440 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 07:59:04,454 INFO L206 MainTranslator]: Completed translation [2023-11-19 07:59:04,454 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:59:04 WrapperNode [2023-11-19 07:59:04,455 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-19 07:59:04,456 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-19 07:59:04,456 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-19 07:59:04,457 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-19 07:59:04,465 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:59:04" (1/1) ... [2023-11-19 07:59:04,473 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:59:04" (1/1) ... [2023-11-19 07:59:04,493 INFO L138 Inliner]: procedures = 13, calls = 9, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 33 [2023-11-19 07:59:04,493 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-19 07:59:04,494 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-19 07:59:04,495 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-19 07:59:04,495 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-19 07:59:04,504 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:59:04" (1/1) ... [2023-11-19 07:59:04,504 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:59:04" (1/1) ... [2023-11-19 07:59:04,505 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:59:04" (1/1) ... [2023-11-19 07:59:04,505 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:59:04" (1/1) ... [2023-11-19 07:59:04,508 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:59:04" (1/1) ... [2023-11-19 07:59:04,512 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:59:04" (1/1) ... [2023-11-19 07:59:04,513 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:59:04" (1/1) ... [2023-11-19 07:59:04,514 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:59:04" (1/1) ... [2023-11-19 07:59:04,515 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-19 07:59:04,516 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-19 07:59:04,517 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-19 07:59:04,517 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-19 07:59:04,518 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:59:04" (1/1) ... [2023-11-19 07:59:04,527 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-19 07:59:04,542 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_975a5c4a-3979-471e-9249-7d1811f5f430/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 07:59:04,563 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_975a5c4a-3979-471e-9249-7d1811f5f430/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-19 07:59:04,574 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_975a5c4a-3979-471e-9249-7d1811f5f430/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2023-11-19 07:59:04,609 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-19 07:59:04,610 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-19 07:59:04,610 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-19 07:59:04,610 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-19 07:59:04,677 INFO L236 CfgBuilder]: Building ICFG [2023-11-19 07:59:04,680 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-19 07:59:04,789 INFO L277 CfgBuilder]: Performing block encoding [2023-11-19 07:59:04,797 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-19 07:59:04,798 INFO L302 CfgBuilder]: Removed 1 assume(true) statements. [2023-11-19 07:59:04,801 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 07:59:04 BoogieIcfgContainer [2023-11-19 07:59:04,802 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-19 07:59:04,803 INFO L112 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2023-11-19 07:59:04,803 INFO L270 PluginConnector]: Initializing BuchiAutomizer... [2023-11-19 07:59:04,808 INFO L274 PluginConnector]: BuchiAutomizer initialized [2023-11-19 07:59:04,809 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2023-11-19 07:59:04,809 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 19.11 07:59:04" (1/3) ... [2023-11-19 07:59:04,811 INFO L204 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@6dc1ee3e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 19.11 07:59:04, skipping insertion in model container [2023-11-19 07:59:04,811 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2023-11-19 07:59:04,811 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:59:04" (2/3) ... [2023-11-19 07:59:04,812 INFO L204 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@6dc1ee3e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 19.11 07:59:04, skipping insertion in model container [2023-11-19 07:59:04,812 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2023-11-19 07:59:04,812 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 07:59:04" (3/3) ... [2023-11-19 07:59:04,814 INFO L332 chiAutomizerObserver]: Analyzing ICFG jain_2-1.c [2023-11-19 07:59:04,873 INFO L303 stractBuchiCegarLoop]: Interprodecural is true [2023-11-19 07:59:04,874 INFO L304 stractBuchiCegarLoop]: Hoare is false [2023-11-19 07:59:04,874 INFO L305 stractBuchiCegarLoop]: Compute interpolants for ForwardPredicates [2023-11-19 07:59:04,874 INFO L306 stractBuchiCegarLoop]: Backedges is STRAIGHT_LINE [2023-11-19 07:59:04,875 INFO L307 stractBuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2023-11-19 07:59:04,875 INFO L308 stractBuchiCegarLoop]: Difference is false [2023-11-19 07:59:04,875 INFO L309 stractBuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2023-11-19 07:59:04,875 INFO L313 stractBuchiCegarLoop]: ======== Iteration 0 == of CEGAR loop == BuchiAutomatonCegarLoop ======== [2023-11-19 07:59:04,884 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) [2023-11-19 07:59:04,906 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 5 [2023-11-19 07:59:04,906 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-11-19 07:59:04,906 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-11-19 07:59:04,915 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1] [2023-11-19 07:59:04,915 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1] [2023-11-19 07:59:04,915 INFO L335 stractBuchiCegarLoop]: ======== Iteration 1 ============ [2023-11-19 07:59:04,916 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) [2023-11-19 07:59:04,921 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 5 [2023-11-19 07:59:04,921 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-11-19 07:59:04,922 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-11-19 07:59:04,923 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1] [2023-11-19 07:59:04,923 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1] [2023-11-19 07:59:04,935 INFO L748 eck$LassoCheckResult]: Stem: 5#$Ultimate##0true assume { :begin_inline_ULTIMATE.init } true;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int(48, 1, 0, 1);call write~init~int(0, 1, 1, 1);call #Ultimate.allocInit(11, 2);call #Ultimate.allocInit(12, 3); 8#L-1true assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet4#1, main_#t~nondet5#1, main_~x~0#1, main_~y~0#1;havoc main_~x~0#1;havoc main_~y~0#1;main_~x~0#1 := 1;main_~y~0#1 := 1; 9#L27-2true [2023-11-19 07:59:04,936 INFO L750 eck$LassoCheckResult]: Loop: 9#L27-2true assume !false;havoc main_#t~nondet4#1;main_~x~0#1 := main_~x~0#1 + 2 * main_#t~nondet4#1;havoc main_#t~nondet4#1;havoc main_#t~nondet5#1;main_~y~0#1 := main_~y~0#1 + 2 * main_#t~nondet5#1;havoc main_#t~nondet5#1;assume { :begin_inline___VERIFIER_assert } true;__VERIFIER_assert_#in~cond#1 := (if 1 != (main_~x~0#1 + main_~y~0#1) % 4294967296 then 1 else 0);havoc __VERIFIER_assert_~cond#1;__VERIFIER_assert_~cond#1 := __VERIFIER_assert_#in~cond#1; 6#L15true assume !(0 == __VERIFIER_assert_~cond#1); 11#L15-2true havoc __VERIFIER_assert_~cond#1;havoc __VERIFIER_assert_#in~cond#1;assume { :end_inline___VERIFIER_assert } true; 9#L27-2true [2023-11-19 07:59:04,948 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:59:04,948 INFO L85 PathProgramCache]: Analyzing trace with hash 963, now seen corresponding path program 1 times [2023-11-19 07:59:04,960 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:59:04,961 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1145370202] [2023-11-19 07:59:04,962 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:59:04,962 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:59:05,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-19 07:59:05,103 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-19 07:59:05,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-19 07:59:05,164 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-19 07:59:05,170 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:59:05,171 INFO L85 PathProgramCache]: Analyzing trace with hash 41005, now seen corresponding path program 1 times [2023-11-19 07:59:05,171 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:59:05,172 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1872562831] [2023-11-19 07:59:05,172 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:59:05,172 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:59:05,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-19 07:59:05,207 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-19 07:59:05,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-19 07:59:05,235 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-19 07:59:05,237 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:59:05,237 INFO L85 PathProgramCache]: Analyzing trace with hash 28699947, now seen corresponding path program 1 times [2023-11-19 07:59:05,238 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:59:05,238 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1443903783] [2023-11-19 07:59:05,238 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:59:05,239 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:59:05,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-19 07:59:05,262 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-19 07:59:05,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-19 07:59:05,284 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-19 07:59:05,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-19 07:59:05,682 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-19 07:59:05,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-19 07:59:05,712 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 19.11 07:59:05 BoogieIcfgContainer [2023-11-19 07:59:05,712 INFO L131 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2023-11-19 07:59:05,713 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-19 07:59:05,713 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-19 07:59:05,713 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-19 07:59:05,714 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 07:59:04" (3/4) ... [2023-11-19 07:59:05,716 INFO L134 WitnessPrinter]: Generating witness for non-termination counterexample [2023-11-19 07:59:05,773 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_975a5c4a-3979-471e-9249-7d1811f5f430/bin/uautomizer-verify-uCwYo4JHxu/witness.graphml [2023-11-19 07:59:05,775 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-19 07:59:05,778 INFO L158 Benchmark]: Toolchain (without parser) took 1576.64ms. Allocated memory was 165.7MB in the beginning and 201.3MB in the end (delta: 35.7MB). Free memory was 119.7MB in the beginning and 166.6MB in the end (delta: -46.9MB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-19 07:59:05,779 INFO L158 Benchmark]: CDTParser took 0.82ms. Allocated memory is still 165.7MB. Free memory was 109.4MB in the beginning and 109.3MB in the end (delta: 159.9kB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-19 07:59:05,782 INFO L158 Benchmark]: CACSL2BoogieTranslator took 253.93ms. Allocated memory is still 165.7MB. Free memory was 119.7MB in the beginning and 109.5MB in the end (delta: 10.2MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2023-11-19 07:59:05,783 INFO L158 Benchmark]: Boogie Procedure Inliner took 37.50ms. Allocated memory is still 165.7MB. Free memory was 109.5MB in the beginning and 108.1MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-19 07:59:05,785 INFO L158 Benchmark]: Boogie Preprocessor took 21.35ms. Allocated memory is still 165.7MB. Free memory was 108.1MB in the beginning and 107.2MB in the end (delta: 852.9kB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-19 07:59:05,786 INFO L158 Benchmark]: RCFGBuilder took 285.39ms. Allocated memory is still 165.7MB. Free memory was 106.8MB in the beginning and 98.0MB in the end (delta: 8.8MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2023-11-19 07:59:05,786 INFO L158 Benchmark]: BuchiAutomizer took 909.13ms. Allocated memory was 165.7MB in the beginning and 201.3MB in the end (delta: 35.7MB). Free memory was 97.6MB in the beginning and 168.7MB in the end (delta: -71.1MB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-19 07:59:05,787 INFO L158 Benchmark]: Witness Printer took 62.20ms. Allocated memory is still 201.3MB. Free memory was 168.7MB in the beginning and 166.6MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-19 07:59:05,793 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.82ms. Allocated memory is still 165.7MB. Free memory was 109.4MB in the beginning and 109.3MB in the end (delta: 159.9kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 253.93ms. Allocated memory is still 165.7MB. Free memory was 119.7MB in the beginning and 109.5MB in the end (delta: 10.2MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 37.50ms. Allocated memory is still 165.7MB. Free memory was 109.5MB in the beginning and 108.1MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 21.35ms. Allocated memory is still 165.7MB. Free memory was 108.1MB in the beginning and 107.2MB in the end (delta: 852.9kB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 285.39ms. Allocated memory is still 165.7MB. Free memory was 106.8MB in the beginning and 98.0MB in the end (delta: 8.8MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * BuchiAutomizer took 909.13ms. Allocated memory was 165.7MB in the beginning and 201.3MB in the end (delta: 35.7MB). Free memory was 97.6MB in the beginning and 168.7MB in the end (delta: -71.1MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 62.20ms. Allocated memory is still 201.3MB. Free memory was 168.7MB in the beginning and 166.6MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Trivial decomposition into one nonterminating module. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 0.8s and 1 iterations. TraceHistogramMax:1. Analysis of lassos took 0.7s. 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: 1]: Nontermination argument in form of an infinite program execution. Nontermination argument in form of an infinite program execution. Stem: [L22] unsigned int x,y; [L24] x = 1U [L25] y = 1U VAL [x=1, y=1] Loop: [L27] COND TRUE 1 [L29] x = x +2U*__VERIFIER_nondet_uint() [L30] y = y +2U*__VERIFIER_nondet_uint() [L33] CALL __VERIFIER_assert(x+y!=1U) [L15] COND FALSE !(!(cond)) [L33] RET __VERIFIER_assert(x+y!=1U) End of lasso representation. - StatisticsResult: NonterminationArgumentStatistics Fixpoint - NonterminatingLassoResult [Line: 1]: Nonterminating execution Found a nonterminating execution for the following lasso shaped sequence of statements. Stem: [L22] unsigned int x,y; [L24] x = 1U [L25] y = 1U VAL [x=1, y=1] Loop: [L27] COND TRUE 1 [L29] x = x +2U*__VERIFIER_nondet_uint() [L30] y = y +2U*__VERIFIER_nondet_uint() [L33] CALL __VERIFIER_assert(x+y!=1U) [L15] COND FALSE !(!(cond)) [L33] RET __VERIFIER_assert(x+y!=1U) End of lasso representation. RESULT: Ultimate proved your program to be incorrect! [2023-11-19 07:59:05,837 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_975a5c4a-3979-471e-9249-7d1811f5f430/bin/uautomizer-verify-uCwYo4JHxu/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)