./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/termination-restricted-15/WhilePart.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 9bd2c7ff Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea47eafb-a40e-4625-bf9e-85066aa24e9d/bin/uautomizer-verify-uCwYo4JHxu/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea47eafb-a40e-4625-bf9e-85066aa24e9d/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_ea47eafb-a40e-4625-bf9e-85066aa24e9d/bin/uautomizer-verify-uCwYo4JHxu/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea47eafb-a40e-4625-bf9e-85066aa24e9d/bin/uautomizer-verify-uCwYo4JHxu/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/termination-restricted-15/WhilePart.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea47eafb-a40e-4625-bf9e-85066aa24e9d/bin/uautomizer-verify-uCwYo4JHxu/config/svcomp-Termination-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea47eafb-a40e-4625-bf9e-85066aa24e9d/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 64bit --witnessprinter.graph.data.programhash 615cc94dba3abc367f303da703fd664b36c304d01707dbbe6611a7311b8842d6 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-9bd2c7f [2023-11-19 08:06:37,227 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-19 08:06:37,350 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea47eafb-a40e-4625-bf9e-85066aa24e9d/bin/uautomizer-verify-uCwYo4JHxu/config/svcomp-Termination-64bit-Automizer_Default.epf [2023-11-19 08:06:37,356 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-19 08:06:37,357 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-19 08:06:37,397 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-19 08:06:37,398 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-19 08:06:37,399 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-19 08:06:37,400 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-19 08:06:37,405 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-19 08:06:37,406 INFO L153 SettingsManager]: * Use SBE=true [2023-11-19 08:06:37,407 INFO L151 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2023-11-19 08:06:37,407 INFO L153 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2023-11-19 08:06:37,409 INFO L153 SettingsManager]: * Use old map elimination=false [2023-11-19 08:06:37,410 INFO L153 SettingsManager]: * Use external solver (rank synthesis)=false [2023-11-19 08:06:37,410 INFO L153 SettingsManager]: * Use only trivial implications for array writes=true [2023-11-19 08:06:37,410 INFO L153 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2023-11-19 08:06:37,411 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-19 08:06:37,412 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2023-11-19 08:06:37,412 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-19 08:06:37,414 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-19 08:06:37,415 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2023-11-19 08:06:37,415 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2023-11-19 08:06:37,416 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2023-11-19 08:06:37,416 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-19 08:06:37,416 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-19 08:06:37,417 INFO L153 SettingsManager]: * Assume nondeterminstic values are in range=false [2023-11-19 08:06:37,417 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-19 08:06:37,418 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-19 08:06:37,418 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-19 08:06:37,420 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-19 08:06:37,420 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-19 08:06:37,421 INFO L151 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2023-11-19 08:06:37,421 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_ea47eafb-a40e-4625-bf9e-85066aa24e9d/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea47eafb-a40e-4625-bf9e-85066aa24e9d/bin/uautomizer-verify-uCwYo4JHxu Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 615cc94dba3abc367f303da703fd664b36c304d01707dbbe6611a7311b8842d6 [2023-11-19 08:06:37,786 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-19 08:06:37,818 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-19 08:06:37,831 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-19 08:06:37,832 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-19 08:06:37,833 INFO L274 PluginConnector]: CDTParser initialized [2023-11-19 08:06:37,834 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea47eafb-a40e-4625-bf9e-85066aa24e9d/bin/uautomizer-verify-uCwYo4JHxu/../../sv-benchmarks/c/termination-restricted-15/WhilePart.c [2023-11-19 08:06:40,902 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-19 08:06:41,086 INFO L384 CDTParser]: Found 1 translation units. [2023-11-19 08:06:41,087 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea47eafb-a40e-4625-bf9e-85066aa24e9d/sv-benchmarks/c/termination-restricted-15/WhilePart.c [2023-11-19 08:06:41,094 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea47eafb-a40e-4625-bf9e-85066aa24e9d/bin/uautomizer-verify-uCwYo4JHxu/data/892d94fb7/b3b2c192505f4708b1fb0e29da97ff53/FLAGa41be8b43 [2023-11-19 08:06:41,110 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea47eafb-a40e-4625-bf9e-85066aa24e9d/bin/uautomizer-verify-uCwYo4JHxu/data/892d94fb7/b3b2c192505f4708b1fb0e29da97ff53 [2023-11-19 08:06:41,113 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-19 08:06:41,115 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-19 08:06:41,116 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-19 08:06:41,117 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-19 08:06:41,122 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-19 08:06:41,123 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 08:06:41" (1/1) ... [2023-11-19 08:06:41,124 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@622afcb5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:06:41, skipping insertion in model container [2023-11-19 08:06:41,125 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 08:06:41" (1/1) ... [2023-11-19 08:06:41,144 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-19 08:06:41,296 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 08:06:41,300 INFO L202 MainTranslator]: Completed pre-run [2023-11-19 08:06:41,312 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 08:06:41,328 INFO L206 MainTranslator]: Completed translation [2023-11-19 08:06:41,329 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:06:41 WrapperNode [2023-11-19 08:06:41,329 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-19 08:06:41,330 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-19 08:06:41,331 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-19 08:06:41,331 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-19 08:06:41,339 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:06:41" (1/1) ... [2023-11-19 08:06:41,344 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:06:41" (1/1) ... [2023-11-19 08:06:41,361 INFO L138 Inliner]: procedures = 4, calls = 2, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 14 [2023-11-19 08:06:41,362 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-19 08:06:41,363 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-19 08:06:41,363 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-19 08:06:41,363 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-19 08:06:41,373 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:06:41" (1/1) ... [2023-11-19 08:06:41,373 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:06:41" (1/1) ... [2023-11-19 08:06:41,374 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:06:41" (1/1) ... [2023-11-19 08:06:41,374 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:06:41" (1/1) ... [2023-11-19 08:06:41,376 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:06:41" (1/1) ... [2023-11-19 08:06:41,380 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:06:41" (1/1) ... [2023-11-19 08:06:41,381 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:06:41" (1/1) ... [2023-11-19 08:06:41,382 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:06:41" (1/1) ... [2023-11-19 08:06:41,383 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-19 08:06:41,384 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-19 08:06:41,384 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-19 08:06:41,384 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-19 08:06:41,385 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:06:41" (1/1) ... [2023-11-19 08:06:41,392 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-19 08:06:41,403 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea47eafb-a40e-4625-bf9e-85066aa24e9d/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 08:06:41,420 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea47eafb-a40e-4625-bf9e-85066aa24e9d/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-19 08:06:41,441 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea47eafb-a40e-4625-bf9e-85066aa24e9d/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2023-11-19 08:06:41,461 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-19 08:06:41,462 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-19 08:06:41,548 INFO L236 CfgBuilder]: Building ICFG [2023-11-19 08:06:41,550 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-19 08:06:41,638 INFO L277 CfgBuilder]: Performing block encoding [2023-11-19 08:06:41,658 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-19 08:06:41,659 INFO L302 CfgBuilder]: Removed 1 assume(true) statements. [2023-11-19 08:06:41,663 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 08:06:41 BoogieIcfgContainer [2023-11-19 08:06:41,664 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-19 08:06:41,666 INFO L112 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2023-11-19 08:06:41,666 INFO L270 PluginConnector]: Initializing BuchiAutomizer... [2023-11-19 08:06:41,670 INFO L274 PluginConnector]: BuchiAutomizer initialized [2023-11-19 08:06:41,671 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2023-11-19 08:06:41,672 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 19.11 08:06:41" (1/3) ... [2023-11-19 08:06:41,673 INFO L204 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@632dd28f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 19.11 08:06:41, skipping insertion in model container [2023-11-19 08:06:41,674 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2023-11-19 08:06:41,674 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:06:41" (2/3) ... [2023-11-19 08:06:41,677 INFO L204 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@632dd28f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 19.11 08:06:41, skipping insertion in model container [2023-11-19 08:06:41,677 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2023-11-19 08:06:41,677 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 08:06:41" (3/3) ... [2023-11-19 08:06:41,680 INFO L332 chiAutomizerObserver]: Analyzing ICFG WhilePart.c [2023-11-19 08:06:41,757 INFO L303 stractBuchiCegarLoop]: Interprodecural is true [2023-11-19 08:06:41,758 INFO L304 stractBuchiCegarLoop]: Hoare is false [2023-11-19 08:06:41,758 INFO L305 stractBuchiCegarLoop]: Compute interpolants for ForwardPredicates [2023-11-19 08:06:41,759 INFO L306 stractBuchiCegarLoop]: Backedges is STRAIGHT_LINE [2023-11-19 08:06:41,759 INFO L307 stractBuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2023-11-19 08:06:41,759 INFO L308 stractBuchiCegarLoop]: Difference is false [2023-11-19 08:06:41,761 INFO L309 stractBuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2023-11-19 08:06:41,761 INFO L313 stractBuchiCegarLoop]: ======== Iteration 0 == of CEGAR loop == BuchiAutomatonCegarLoop ======== [2023-11-19 08:06:41,768 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 8 states, 7 states have (on average 1.4285714285714286) internal successors, (10), 7 states have internal predecessors, (10), 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 08:06:41,787 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2023-11-19 08:06:41,787 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-11-19 08:06:41,788 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-11-19 08:06:41,794 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1] [2023-11-19 08:06:41,794 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1] [2023-11-19 08:06:41,794 INFO L335 stractBuchiCegarLoop]: ======== Iteration 1 ============ [2023-11-19 08:06:41,795 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 8 states, 7 states have (on average 1.4285714285714286) internal successors, (10), 7 states have internal predecessors, (10), 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 08:06:41,797 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2023-11-19 08:06:41,798 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-11-19 08:06:41,799 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-11-19 08:06:41,799 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1] [2023-11-19 08:06:41,799 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1] [2023-11-19 08:06:41,809 INFO L748 eck$LassoCheckResult]: Stem: 6#$Ultimate##0true assume { :begin_inline_ULTIMATE.init } true; 8#L-1true assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet0#1, main_~i~0#1;havoc main_~i~0#1;havoc main_#t~nondet0#1;main_~i~0#1 := main_#t~nondet0#1;havoc main_#t~nondet0#1; 3#L10-2true [2023-11-19 08:06:41,810 INFO L750 eck$LassoCheckResult]: Loop: 3#L10-2true assume !!(main_~i~0#1 > 5); 5#L10true assume !(main_~i~0#1 < 10); 3#L10-2true [2023-11-19 08:06:41,817 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 08:06:41,818 INFO L85 PathProgramCache]: Analyzing trace with hash 963, now seen corresponding path program 1 times [2023-11-19 08:06:41,829 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 08:06:41,830 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1154254548] [2023-11-19 08:06:41,830 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 08:06:41,831 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 08:06:41,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-19 08:06:41,925 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-19 08:06:41,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-19 08:06:41,955 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-19 08:06:41,960 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 08:06:41,960 INFO L85 PathProgramCache]: Analyzing trace with hash 1318, now seen corresponding path program 1 times [2023-11-19 08:06:41,961 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 08:06:41,966 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [903237114] [2023-11-19 08:06:41,966 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 08:06:41,967 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 08:06:41,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-19 08:06:41,981 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-19 08:06:41,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-19 08:06:41,996 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-19 08:06:41,999 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 08:06:42,005 INFO L85 PathProgramCache]: Analyzing trace with hash 925800, now seen corresponding path program 1 times [2023-11-19 08:06:42,006 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 08:06:42,006 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1880743371] [2023-11-19 08:06:42,007 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 08:06:42,007 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 08:06:42,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-19 08:06:42,014 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-19 08:06:42,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-19 08:06:42,023 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-19 08:06:42,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-19 08:06:42,105 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-19 08:06:42,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-19 08:06:42,126 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 19.11 08:06:42 BoogieIcfgContainer [2023-11-19 08:06:42,126 INFO L131 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2023-11-19 08:06:42,127 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-19 08:06:42,127 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-19 08:06:42,127 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-19 08:06:42,128 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 08:06:41" (3/4) ... [2023-11-19 08:06:42,130 INFO L134 WitnessPrinter]: Generating witness for non-termination counterexample [2023-11-19 08:06:42,161 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea47eafb-a40e-4625-bf9e-85066aa24e9d/bin/uautomizer-verify-uCwYo4JHxu/witness.graphml [2023-11-19 08:06:42,161 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-19 08:06:42,163 INFO L158 Benchmark]: Toolchain (without parser) took 1047.84ms. Allocated memory is still 161.5MB. Free memory was 122.3MB in the beginning and 85.0MB in the end (delta: 37.2MB). Peak memory consumption was 37.7MB. Max. memory is 16.1GB. [2023-11-19 08:06:42,164 INFO L158 Benchmark]: CDTParser took 0.52ms. Allocated memory is still 161.5MB. Free memory was 137.0MB in the beginning and 136.8MB in the end (delta: 240.5kB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-19 08:06:42,165 INFO L158 Benchmark]: CACSL2BoogieTranslator took 213.31ms. Allocated memory is still 161.5MB. Free memory was 122.3MB in the beginning and 112.8MB in the end (delta: 9.5MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2023-11-19 08:06:42,166 INFO L158 Benchmark]: Boogie Procedure Inliner took 31.73ms. Allocated memory is still 161.5MB. Free memory was 112.8MB in the beginning and 111.7MB in the end (delta: 1.1MB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-19 08:06:42,167 INFO L158 Benchmark]: Boogie Preprocessor took 20.45ms. Allocated memory is still 161.5MB. Free memory was 111.7MB in the beginning and 110.7MB in the end (delta: 1.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-19 08:06:42,167 INFO L158 Benchmark]: RCFGBuilder took 280.12ms. Allocated memory is still 161.5MB. Free memory was 110.7MB in the beginning and 102.3MB in the end (delta: 8.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2023-11-19 08:06:42,168 INFO L158 Benchmark]: BuchiAutomizer took 460.48ms. Allocated memory is still 161.5MB. Free memory was 102.3MB in the beginning and 86.6MB in the end (delta: 15.7MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2023-11-19 08:06:42,169 INFO L158 Benchmark]: Witness Printer took 35.01ms. Allocated memory is still 161.5MB. Free memory was 86.6MB in the beginning and 85.0MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-19 08:06:42,173 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.52ms. Allocated memory is still 161.5MB. Free memory was 137.0MB in the beginning and 136.8MB in the end (delta: 240.5kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 213.31ms. Allocated memory is still 161.5MB. Free memory was 122.3MB in the beginning and 112.8MB in the end (delta: 9.5MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 31.73ms. Allocated memory is still 161.5MB. Free memory was 112.8MB in the beginning and 111.7MB in the end (delta: 1.1MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 20.45ms. Allocated memory is still 161.5MB. Free memory was 111.7MB in the beginning and 110.7MB in the end (delta: 1.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 280.12ms. Allocated memory is still 161.5MB. Free memory was 110.7MB in the beginning and 102.3MB in the end (delta: 8.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * BuchiAutomizer took 460.48ms. Allocated memory is still 161.5MB. Free memory was 102.3MB in the beginning and 86.6MB in the end (delta: 15.7MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * Witness Printer took 35.01ms. Allocated memory is still 161.5MB. Free memory was 86.6MB in the beginning and 85.0MB in the end (delta: 1.6MB). 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 0.3s and 1 iterations. TraceHistogramMax:1. Analysis of lassos took 0.3s. 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: 9]: Nontermination argument in form of an infinite program execution. Nontermination argument in form of an infinite program execution. Stem: [L6] int i; [L7] i = __VERIFIER_nondet_int() Loop: [L9] COND TRUE i > 5 [L10] COND FALSE !(i < 10) End of lasso representation. - StatisticsResult: NonterminationArgumentStatistics Fixpoint - NonterminatingLassoResult [Line: 9]: Nonterminating execution Found a nonterminating execution for the following lasso shaped sequence of statements. Stem: [L6] int i; [L7] i = __VERIFIER_nondet_int() Loop: [L9] COND TRUE i > 5 [L10] COND FALSE !(i < 10) End of lasso representation. RESULT: Ultimate proved your program to be incorrect! [2023-11-19 08:06:42,211 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea47eafb-a40e-4625-bf9e-85066aa24e9d/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Ended with 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)