./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 cf1a7837 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_dc90fa28-77d0-4b73-872a-ab80ec99e3cd/bin/uautomizer-verify-uTZkv6EMXl/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc90fa28-77d0-4b73-872a-ab80ec99e3cd/bin/uautomizer-verify-uTZkv6EMXl/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc90fa28-77d0-4b73-872a-ab80ec99e3cd/bin/uautomizer-verify-uTZkv6EMXl/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc90fa28-77d0-4b73-872a-ab80ec99e3cd/bin/uautomizer-verify-uTZkv6EMXl/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/termination-restricted-15/WhilePart.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc90fa28-77d0-4b73-872a-ab80ec99e3cd/bin/uautomizer-verify-uTZkv6EMXl/config/svcomp-Termination-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc90fa28-77d0-4b73-872a-ab80ec99e3cd/bin/uautomizer-verify-uTZkv6EMXl --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-cf1a783 [2023-11-12 02:11:01,951 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-12 02:11:02,020 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc90fa28-77d0-4b73-872a-ab80ec99e3cd/bin/uautomizer-verify-uTZkv6EMXl/config/svcomp-Termination-64bit-Automizer_Default.epf [2023-11-12 02:11:02,025 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-12 02:11:02,025 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-12 02:11:02,061 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-12 02:11:02,063 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-12 02:11:02,064 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-12 02:11:02,065 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-12 02:11:02,069 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-12 02:11:02,071 INFO L153 SettingsManager]: * Use SBE=true [2023-11-12 02:11:02,071 INFO L151 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2023-11-12 02:11:02,071 INFO L153 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2023-11-12 02:11:02,073 INFO L153 SettingsManager]: * Use old map elimination=false [2023-11-12 02:11:02,073 INFO L153 SettingsManager]: * Use external solver (rank synthesis)=false [2023-11-12 02:11:02,074 INFO L153 SettingsManager]: * Use only trivial implications for array writes=true [2023-11-12 02:11:02,074 INFO L153 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2023-11-12 02:11:02,075 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-12 02:11:02,075 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2023-11-12 02:11:02,076 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-12 02:11:02,076 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-12 02:11:02,077 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2023-11-12 02:11:02,077 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2023-11-12 02:11:02,078 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2023-11-12 02:11:02,078 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-12 02:11:02,078 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-12 02:11:02,079 INFO L153 SettingsManager]: * Assume nondeterminstic values are in range=false [2023-11-12 02:11:02,079 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-12 02:11:02,079 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-12 02:11:02,080 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-12 02:11:02,080 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-12 02:11:02,081 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-12 02:11:02,081 INFO L151 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2023-11-12 02:11:02,082 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_dc90fa28-77d0-4b73-872a-ab80ec99e3cd/bin/uautomizer-verify-uTZkv6EMXl/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc90fa28-77d0-4b73-872a-ab80ec99e3cd/bin/uautomizer-verify-uTZkv6EMXl Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 615cc94dba3abc367f303da703fd664b36c304d01707dbbe6611a7311b8842d6 [2023-11-12 02:11:02,356 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-12 02:11:02,392 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-12 02:11:02,395 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-12 02:11:02,397 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-12 02:11:02,397 INFO L274 PluginConnector]: CDTParser initialized [2023-11-12 02:11:02,399 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc90fa28-77d0-4b73-872a-ab80ec99e3cd/bin/uautomizer-verify-uTZkv6EMXl/../../sv-benchmarks/c/termination-restricted-15/WhilePart.c [2023-11-12 02:11:05,507 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-12 02:11:05,740 INFO L384 CDTParser]: Found 1 translation units. [2023-11-12 02:11:05,741 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc90fa28-77d0-4b73-872a-ab80ec99e3cd/sv-benchmarks/c/termination-restricted-15/WhilePart.c [2023-11-12 02:11:05,747 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc90fa28-77d0-4b73-872a-ab80ec99e3cd/bin/uautomizer-verify-uTZkv6EMXl/data/3d9d25ed6/bdfc464111b14f319357eef6e719b71e/FLAGc259ad36d [2023-11-12 02:11:05,763 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc90fa28-77d0-4b73-872a-ab80ec99e3cd/bin/uautomizer-verify-uTZkv6EMXl/data/3d9d25ed6/bdfc464111b14f319357eef6e719b71e [2023-11-12 02:11:05,766 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-12 02:11:05,767 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-12 02:11:05,769 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-12 02:11:05,769 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-12 02:11:05,779 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-12 02:11:05,779 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 02:11:05" (1/1) ... [2023-11-12 02:11:05,781 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@34e3ca00 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:11:05, skipping insertion in model container [2023-11-12 02:11:05,781 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 02:11:05" (1/1) ... [2023-11-12 02:11:05,801 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-12 02:11:05,965 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-12 02:11:05,970 INFO L202 MainTranslator]: Completed pre-run [2023-11-12 02:11:05,980 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-12 02:11:05,992 INFO L206 MainTranslator]: Completed translation [2023-11-12 02:11:05,992 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:11:05 WrapperNode [2023-11-12 02:11:05,992 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-12 02:11:05,993 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-12 02:11:05,993 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-12 02:11:05,993 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-12 02:11:06,002 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:11:05" (1/1) ... [2023-11-12 02:11:06,008 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:11:05" (1/1) ... [2023-11-12 02:11:06,030 INFO L138 Inliner]: procedures = 4, calls = 2, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 14 [2023-11-12 02:11:06,031 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-12 02:11:06,031 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-12 02:11:06,032 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-12 02:11:06,032 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-12 02:11:06,040 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:11:05" (1/1) ... [2023-11-12 02:11:06,040 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:11:05" (1/1) ... [2023-11-12 02:11:06,041 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:11:05" (1/1) ... [2023-11-12 02:11:06,041 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:11:05" (1/1) ... [2023-11-12 02:11:06,042 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:11:05" (1/1) ... [2023-11-12 02:11:06,046 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:11:05" (1/1) ... [2023-11-12 02:11:06,047 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:11:05" (1/1) ... [2023-11-12 02:11:06,047 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:11:05" (1/1) ... [2023-11-12 02:11:06,048 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-12 02:11:06,049 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-12 02:11:06,050 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-12 02:11:06,050 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-12 02:11:06,051 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:11:05" (1/1) ... [2023-11-12 02:11:06,057 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-12 02:11:06,070 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc90fa28-77d0-4b73-872a-ab80ec99e3cd/bin/uautomizer-verify-uTZkv6EMXl/z3 [2023-11-12 02:11:06,086 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc90fa28-77d0-4b73-872a-ab80ec99e3cd/bin/uautomizer-verify-uTZkv6EMXl/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-12 02:11:06,110 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc90fa28-77d0-4b73-872a-ab80ec99e3cd/bin/uautomizer-verify-uTZkv6EMXl/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2023-11-12 02:11:06,144 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-12 02:11:06,144 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-12 02:11:06,247 INFO L236 CfgBuilder]: Building ICFG [2023-11-12 02:11:06,249 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-12 02:11:06,329 INFO L277 CfgBuilder]: Performing block encoding [2023-11-12 02:11:06,344 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-12 02:11:06,355 INFO L302 CfgBuilder]: Removed 1 assume(true) statements. [2023-11-12 02:11:06,358 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 02:11:06 BoogieIcfgContainer [2023-11-12 02:11:06,358 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-12 02:11:06,359 INFO L112 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2023-11-12 02:11:06,363 INFO L270 PluginConnector]: Initializing BuchiAutomizer... [2023-11-12 02:11:06,367 INFO L274 PluginConnector]: BuchiAutomizer initialized [2023-11-12 02:11:06,368 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2023-11-12 02:11:06,368 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 12.11 02:11:05" (1/3) ... [2023-11-12 02:11:06,369 INFO L204 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@41dfa6e0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 12.11 02:11:06, skipping insertion in model container [2023-11-12 02:11:06,370 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2023-11-12 02:11:06,370 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:11:05" (2/3) ... [2023-11-12 02:11:06,371 INFO L204 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@41dfa6e0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 12.11 02:11:06, skipping insertion in model container [2023-11-12 02:11:06,371 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2023-11-12 02:11:06,372 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 02:11:06" (3/3) ... [2023-11-12 02:11:06,374 INFO L332 chiAutomizerObserver]: Analyzing ICFG WhilePart.c [2023-11-12 02:11:06,482 INFO L303 stractBuchiCegarLoop]: Interprodecural is true [2023-11-12 02:11:06,482 INFO L304 stractBuchiCegarLoop]: Hoare is false [2023-11-12 02:11:06,483 INFO L305 stractBuchiCegarLoop]: Compute interpolants for ForwardPredicates [2023-11-12 02:11:06,483 INFO L306 stractBuchiCegarLoop]: Backedges is STRAIGHT_LINE [2023-11-12 02:11:06,483 INFO L307 stractBuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2023-11-12 02:11:06,483 INFO L308 stractBuchiCegarLoop]: Difference is false [2023-11-12 02:11:06,485 INFO L309 stractBuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2023-11-12 02:11:06,486 INFO L313 stractBuchiCegarLoop]: ======== Iteration 0 == of CEGAR loop == BuchiAutomatonCegarLoop ======== [2023-11-12 02:11:06,491 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) [2023-11-12 02:11:06,532 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2023-11-12 02:11:06,533 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-11-12 02:11:06,533 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-11-12 02:11:06,539 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1] [2023-11-12 02:11:06,539 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1] [2023-11-12 02:11:06,539 INFO L335 stractBuchiCegarLoop]: ======== Iteration 1 ============ [2023-11-12 02:11:06,540 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) [2023-11-12 02:11:06,541 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2023-11-12 02:11:06,543 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-11-12 02:11:06,543 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-11-12 02:11:06,543 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1] [2023-11-12 02:11:06,543 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1] [2023-11-12 02:11:06,549 INFO L748 eck$LassoCheckResult]: Stem: 6#$Ultimate##0true assume { :begin_inline_ULTIMATE.init } true; 8#L-1true assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet0#1, main_~i~0#1;havoc main_~i~0#1;havoc main_#t~nondet0#1;main_~i~0#1 := main_#t~nondet0#1;havoc main_#t~nondet0#1; 3#L10-2true [2023-11-12 02:11:06,550 INFO L750 eck$LassoCheckResult]: Loop: 3#L10-2true assume !!(main_~i~0#1 > 5); 5#L10true assume !(main_~i~0#1 < 10); 3#L10-2true [2023-11-12 02:11:06,555 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:11:06,555 INFO L85 PathProgramCache]: Analyzing trace with hash 963, now seen corresponding path program 1 times [2023-11-12 02:11:06,565 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-12 02:11:06,566 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [302656000] [2023-11-12 02:11:06,566 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:11:06,567 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 02:11:06,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-12 02:11:06,636 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-12 02:11:06,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-12 02:11:06,655 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-12 02:11:06,658 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:11:06,658 INFO L85 PathProgramCache]: Analyzing trace with hash 1318, now seen corresponding path program 1 times [2023-11-12 02:11:06,658 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-12 02:11:06,659 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2084782519] [2023-11-12 02:11:06,659 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:11:06,659 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 02:11:06,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-12 02:11:06,665 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-12 02:11:06,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-12 02:11:06,670 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-12 02:11:06,671 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:11:06,672 INFO L85 PathProgramCache]: Analyzing trace with hash 925800, now seen corresponding path program 1 times [2023-11-12 02:11:06,672 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-12 02:11:06,672 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [317438394] [2023-11-12 02:11:06,672 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:11:06,673 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 02:11:06,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-12 02:11:06,679 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-12 02:11:06,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-12 02:11:06,683 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-12 02:11:06,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-12 02:11:06,764 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-12 02:11:06,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-12 02:11:06,784 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 12.11 02:11:06 BoogieIcfgContainer [2023-11-12 02:11:06,784 INFO L131 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2023-11-12 02:11:06,785 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-12 02:11:06,785 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-12 02:11:06,786 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-12 02:11:06,786 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 02:11:06" (3/4) ... [2023-11-12 02:11:06,788 INFO L134 WitnessPrinter]: Generating witness for non-termination counterexample [2023-11-12 02:11:06,821 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc90fa28-77d0-4b73-872a-ab80ec99e3cd/bin/uautomizer-verify-uTZkv6EMXl/witness.graphml [2023-11-12 02:11:06,822 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-12 02:11:06,824 INFO L158 Benchmark]: Toolchain (without parser) took 1055.65ms. Allocated memory is still 132.1MB. Free memory was 88.9MB in the beginning and 92.3MB in the end (delta: -3.4MB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-12 02:11:06,824 INFO L158 Benchmark]: CDTParser took 0.51ms. Allocated memory is still 98.6MB. Free memory is still 49.4MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-12 02:11:06,825 INFO L158 Benchmark]: CACSL2BoogieTranslator took 223.26ms. Allocated memory is still 132.1MB. Free memory was 88.6MB in the beginning and 79.4MB in the end (delta: 9.2MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2023-11-12 02:11:06,826 INFO L158 Benchmark]: Boogie Procedure Inliner took 37.76ms. Allocated memory is still 132.1MB. Free memory was 79.4MB in the beginning and 78.3MB in the end (delta: 1.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-12 02:11:06,826 INFO L158 Benchmark]: Boogie Preprocessor took 17.19ms. Allocated memory is still 132.1MB. Free memory was 78.3MB in the beginning and 77.3MB in the end (delta: 995.4kB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-12 02:11:06,827 INFO L158 Benchmark]: RCFGBuilder took 308.67ms. Allocated memory is still 132.1MB. Free memory was 77.3MB in the beginning and 69.0MB in the end (delta: 8.3MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2023-11-12 02:11:06,827 INFO L158 Benchmark]: BuchiAutomizer took 425.40ms. Allocated memory is still 132.1MB. Free memory was 69.0MB in the beginning and 93.5MB in the end (delta: -24.5MB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-12 02:11:06,828 INFO L158 Benchmark]: Witness Printer took 36.80ms. Allocated memory is still 132.1MB. Free memory was 93.5MB in the beginning and 92.3MB in the end (delta: 1.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-12 02:11:06,832 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.51ms. Allocated memory is still 98.6MB. Free memory is still 49.4MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 223.26ms. Allocated memory is still 132.1MB. Free memory was 88.6MB in the beginning and 79.4MB in the end (delta: 9.2MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 37.76ms. Allocated memory is still 132.1MB. Free memory was 79.4MB in the beginning and 78.3MB in the end (delta: 1.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 17.19ms. Allocated memory is still 132.1MB. Free memory was 78.3MB in the beginning and 77.3MB in the end (delta: 995.4kB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 308.67ms. Allocated memory is still 132.1MB. Free memory was 77.3MB in the beginning and 69.0MB in the end (delta: 8.3MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * BuchiAutomizer took 425.40ms. Allocated memory is still 132.1MB. Free memory was 69.0MB in the beginning and 93.5MB in the end (delta: -24.5MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 36.80ms. Allocated memory is still 132.1MB. Free memory was 93.5MB in the beginning and 92.3MB in the end (delta: 1.2MB). 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 0.2s. 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: 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! [2023-11-12 02:11:06,860 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc90fa28-77d0-4b73-872a-ab80ec99e3cd/bin/uautomizer-verify-uTZkv6EMXl/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)