./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/termination-crafted/WhileFalse.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 0e0057cc 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_44f81647-0645-4bf5-82d5-485b67678f3b/bin/uautomizer-verify-VRDe98Ueme/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44f81647-0645-4bf5-82d5-485b67678f3b/bin/uautomizer-verify-VRDe98Ueme/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44f81647-0645-4bf5-82d5-485b67678f3b/bin/uautomizer-verify-VRDe98Ueme/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44f81647-0645-4bf5-82d5-485b67678f3b/bin/uautomizer-verify-VRDe98Ueme/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/termination-crafted/WhileFalse.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44f81647-0645-4bf5-82d5-485b67678f3b/bin/uautomizer-verify-VRDe98Ueme/config/svcomp-Termination-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44f81647-0645-4bf5-82d5-485b67678f3b/bin/uautomizer-verify-VRDe98Ueme --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 6bafde5168b708b72da7f2587edb5230d20fcc9c2ad1a62f6bbb27f7dfec2f68 --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-11-26 10:48:36,679 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-26 10:48:36,799 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44f81647-0645-4bf5-82d5-485b67678f3b/bin/uautomizer-verify-VRDe98Ueme/config/svcomp-Termination-64bit-Automizer_Default.epf [2023-11-26 10:48:36,804 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-26 10:48:36,805 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-26 10:48:36,839 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-26 10:48:36,841 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-26 10:48:36,842 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-26 10:48:36,843 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-11-26 10:48:36,848 INFO L153 SettingsManager]: * Use memory slicer=true [2023-11-26 10:48:36,848 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-26 10:48:36,849 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-26 10:48:36,849 INFO L153 SettingsManager]: * Use SBE=true [2023-11-26 10:48:36,852 INFO L151 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2023-11-26 10:48:36,852 INFO L153 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2023-11-26 10:48:36,853 INFO L153 SettingsManager]: * Use old map elimination=false [2023-11-26 10:48:36,853 INFO L153 SettingsManager]: * Use external solver (rank synthesis)=false [2023-11-26 10:48:36,854 INFO L153 SettingsManager]: * Use only trivial implications for array writes=true [2023-11-26 10:48:36,854 INFO L153 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2023-11-26 10:48:36,854 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-26 10:48:36,855 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2023-11-26 10:48:36,855 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-26 10:48:36,856 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-26 10:48:36,856 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2023-11-26 10:48:36,857 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2023-11-26 10:48:36,857 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2023-11-26 10:48:36,857 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-26 10:48:36,858 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-26 10:48:36,858 INFO L153 SettingsManager]: * Assume nondeterminstic values are in range=false [2023-11-26 10:48:36,859 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-26 10:48:36,860 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-26 10:48:36,860 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-26 10:48:36,860 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-26 10:48:36,861 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-26 10:48:36,861 INFO L151 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2023-11-26 10:48:36,862 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_44f81647-0645-4bf5-82d5-485b67678f3b/bin/uautomizer-verify-VRDe98Ueme/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44f81647-0645-4bf5-82d5-485b67678f3b/bin/uautomizer-verify-VRDe98Ueme Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 6bafde5168b708b72da7f2587edb5230d20fcc9c2ad1a62f6bbb27f7dfec2f68 [2023-11-26 10:48:37,229 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-26 10:48:37,260 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-26 10:48:37,263 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-26 10:48:37,264 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-26 10:48:37,265 INFO L274 PluginConnector]: CDTParser initialized [2023-11-26 10:48:37,266 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44f81647-0645-4bf5-82d5-485b67678f3b/bin/uautomizer-verify-VRDe98Ueme/../../sv-benchmarks/c/termination-crafted/WhileFalse.c [2023-11-26 10:48:40,375 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-26 10:48:40,597 INFO L384 CDTParser]: Found 1 translation units. [2023-11-26 10:48:40,597 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44f81647-0645-4bf5-82d5-485b67678f3b/sv-benchmarks/c/termination-crafted/WhileFalse.c [2023-11-26 10:48:40,603 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44f81647-0645-4bf5-82d5-485b67678f3b/bin/uautomizer-verify-VRDe98Ueme/data/afbc237a1/60b36458284c4538b3d4b390576e3537/FLAGed8a5be74 [2023-11-26 10:48:40,619 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44f81647-0645-4bf5-82d5-485b67678f3b/bin/uautomizer-verify-VRDe98Ueme/data/afbc237a1/60b36458284c4538b3d4b390576e3537 [2023-11-26 10:48:40,625 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-26 10:48:40,626 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-26 10:48:40,629 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-26 10:48:40,629 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-26 10:48:40,638 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-26 10:48:40,639 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.11 10:48:40" (1/1) ... [2023-11-26 10:48:40,640 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1637a9f8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 10:48:40, skipping insertion in model container [2023-11-26 10:48:40,640 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.11 10:48:40" (1/1) ... [2023-11-26 10:48:40,659 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-26 10:48:40,873 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-26 10:48:40,878 INFO L202 MainTranslator]: Completed pre-run [2023-11-26 10:48:40,887 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-26 10:48:40,898 INFO L206 MainTranslator]: Completed translation [2023-11-26 10:48:40,898 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 10:48:40 WrapperNode [2023-11-26 10:48:40,898 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-26 10:48:40,900 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-26 10:48:40,900 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-26 10:48:40,900 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-26 10:48:40,907 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 10:48:40" (1/1) ... [2023-11-26 10:48:40,912 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 10:48:40" (1/1) ... [2023-11-26 10:48:40,931 INFO L138 Inliner]: procedures = 4, calls = 2, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 8 [2023-11-26 10:48:40,932 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-26 10:48:40,933 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-26 10:48:40,933 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-26 10:48:40,934 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-26 10:48:40,948 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 10:48:40" (1/1) ... [2023-11-26 10:48:40,948 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 10:48:40" (1/1) ... [2023-11-26 10:48:40,953 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 10:48:40" (1/1) ... [2023-11-26 10:48:40,960 INFO L175 MemorySlicer]: No memory access in input program. [2023-11-26 10:48:40,961 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 10:48:40" (1/1) ... [2023-11-26 10:48:40,961 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 10:48:40" (1/1) ... [2023-11-26 10:48:40,962 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 10:48:40" (1/1) ... [2023-11-26 10:48:40,967 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 10:48:40" (1/1) ... [2023-11-26 10:48:40,968 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 10:48:40" (1/1) ... [2023-11-26 10:48:40,969 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 10:48:40" (1/1) ... [2023-11-26 10:48:40,970 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-26 10:48:40,971 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-26 10:48:40,971 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-26 10:48:40,971 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-26 10:48:40,972 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 10:48:40" (1/1) ... [2023-11-26 10:48:40,978 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-26 10:48:40,988 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44f81647-0645-4bf5-82d5-485b67678f3b/bin/uautomizer-verify-VRDe98Ueme/z3 [2023-11-26 10:48:41,004 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44f81647-0645-4bf5-82d5-485b67678f3b/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-26 10:48:41,017 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44f81647-0645-4bf5-82d5-485b67678f3b/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2023-11-26 10:48:41,059 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-26 10:48:41,060 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-26 10:48:41,156 INFO L241 CfgBuilder]: Building ICFG [2023-11-26 10:48:41,159 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-26 10:48:41,219 INFO L282 CfgBuilder]: Performing block encoding [2023-11-26 10:48:41,240 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-26 10:48:41,249 INFO L309 CfgBuilder]: Removed 2 assume(true) statements. [2023-11-26 10:48:41,251 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 10:48:41 BoogieIcfgContainer [2023-11-26 10:48:41,251 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-26 10:48:41,252 INFO L112 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2023-11-26 10:48:41,253 INFO L270 PluginConnector]: Initializing BuchiAutomizer... [2023-11-26 10:48:41,257 INFO L274 PluginConnector]: BuchiAutomizer initialized [2023-11-26 10:48:41,258 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2023-11-26 10:48:41,258 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 26.11 10:48:40" (1/3) ... [2023-11-26 10:48:41,259 INFO L204 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@3b8e1321 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 26.11 10:48:41, skipping insertion in model container [2023-11-26 10:48:41,259 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2023-11-26 10:48:41,260 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 10:48:40" (2/3) ... [2023-11-26 10:48:41,261 INFO L204 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@3b8e1321 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 26.11 10:48:41, skipping insertion in model container [2023-11-26 10:48:41,263 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2023-11-26 10:48:41,263 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 10:48:41" (3/3) ... [2023-11-26 10:48:41,264 INFO L332 chiAutomizerObserver]: Analyzing ICFG WhileFalse.c [2023-11-26 10:48:41,343 INFO L303 stractBuchiCegarLoop]: Interprodecural is true [2023-11-26 10:48:41,345 INFO L304 stractBuchiCegarLoop]: Hoare is false [2023-11-26 10:48:41,345 INFO L305 stractBuchiCegarLoop]: Compute interpolants for ForwardPredicates [2023-11-26 10:48:41,346 INFO L306 stractBuchiCegarLoop]: Backedges is STRAIGHT_LINE [2023-11-26 10:48:41,346 INFO L307 stractBuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2023-11-26 10:48:41,346 INFO L308 stractBuchiCegarLoop]: Difference is false [2023-11-26 10:48:41,346 INFO L309 stractBuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2023-11-26 10:48:41,347 INFO L313 stractBuchiCegarLoop]: ======== Iteration 0 == of CEGAR loop == BuchiAutomatonCegarLoop ======== [2023-11-26 10:48:41,351 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 7 states, 6 states have (on average 1.3333333333333333) internal successors, (8), 6 states have internal predecessors, (8), 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) [2023-11-26 10:48:41,370 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2023-11-26 10:48:41,370 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-11-26 10:48:41,370 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-11-26 10:48:41,376 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1] [2023-11-26 10:48:41,377 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1] [2023-11-26 10:48:41,377 INFO L335 stractBuchiCegarLoop]: ======== Iteration 1 ============ [2023-11-26 10:48:41,378 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 7 states, 6 states have (on average 1.3333333333333333) internal successors, (8), 6 states have internal predecessors, (8), 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) [2023-11-26 10:48:41,379 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2023-11-26 10:48:41,380 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-11-26 10:48:41,380 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-11-26 10:48:41,381 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1] [2023-11-26 10:48:41,381 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1] [2023-11-26 10:48:41,389 INFO L748 eck$LassoCheckResult]: Stem: 4#$Ultimate##0true assume { :begin_inline_ULTIMATE.init } true; 5#L-1true assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1; 6#L14-1true [2023-11-26 10:48:41,389 INFO L750 eck$LassoCheckResult]: Loop: 6#L14-1true assume !true; 6#L14-1true [2023-11-26 10:48:41,398 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 10:48:41,398 INFO L85 PathProgramCache]: Analyzing trace with hash 963, now seen corresponding path program 1 times [2023-11-26 10:48:41,408 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 10:48:41,409 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [391254366] [2023-11-26 10:48:41,409 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 10:48:41,410 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 10:48:41,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-26 10:48:41,500 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-26 10:48:41,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-26 10:48:41,527 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-26 10:48:41,530 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 10:48:41,531 INFO L85 PathProgramCache]: Analyzing trace with hash 41, now seen corresponding path program 1 times [2023-11-26 10:48:41,531 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 10:48:41,531 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1562235589] [2023-11-26 10:48:41,532 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 10:48:41,532 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 10:48:41,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 10:48:41,576 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-26 10:48:41,576 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 10:48:41,576 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1562235589] [2023-11-26 10:48:41,577 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1562235589] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 10:48:41,578 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 10:48:41,578 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [0] imperfect sequences [] total 0 [2023-11-26 10:48:41,578 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1545526860] [2023-11-26 10:48:41,579 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 10:48:41,584 INFO L765 eck$LassoCheckResult]: loop already infeasible [2023-11-26 10:48:41,585 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 10:48:41,615 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-11-26 10:48:41,616 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-26 10:48:41,618 INFO L87 Difference]: Start difference. First operand has 7 states, 6 states have (on average 1.3333333333333333) internal successors, (8), 6 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 2 states, 1 states have (on average 1.0) internal successors, (1), 1 states have internal predecessors, (1), 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) [2023-11-26 10:48:41,624 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-26 10:48:41,625 INFO L93 Difference]: Finished difference Result 7 states and 6 transitions. [2023-11-26 10:48:41,626 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 7 states and 6 transitions. [2023-11-26 10:48:41,627 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2023-11-26 10:48:41,630 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 7 states to 0 states and 0 transitions. [2023-11-26 10:48:41,631 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2023-11-26 10:48:41,631 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2023-11-26 10:48:41,632 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2023-11-26 10:48:41,632 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-26 10:48:41,633 INFO L218 hiAutomatonCegarLoop]: Abstraction has 0 states and 0 transitions. [2023-11-26 10:48:41,633 INFO L240 hiAutomatonCegarLoop]: Abstraction has 0 states and 0 transitions. [2023-11-26 10:48:41,634 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-26 10:48:41,638 INFO L428 stractBuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2023-11-26 10:48:41,639 INFO L335 stractBuchiCegarLoop]: ======== Iteration 2 ============ [2023-11-26 10:48:41,639 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2023-11-26 10:48:41,639 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2023-11-26 10:48:41,640 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2023-11-26 10:48:41,647 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 26.11 10:48:41 BoogieIcfgContainer [2023-11-26 10:48:41,647 INFO L131 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2023-11-26 10:48:41,648 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-26 10:48:41,648 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-26 10:48:41,648 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-26 10:48:41,649 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 10:48:41" (3/4) ... [2023-11-26 10:48:41,651 INFO L140 WitnessPrinter]: No result that supports witness generation found [2023-11-26 10:48:41,652 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-26 10:48:41,653 INFO L158 Benchmark]: Toolchain (without parser) took 1026.22ms. Allocated memory is still 159.4MB. Free memory was 122.0MB in the beginning and 98.9MB in the end (delta: 23.1MB). Peak memory consumption was 21.4MB. Max. memory is 16.1GB. [2023-11-26 10:48:41,653 INFO L158 Benchmark]: CDTParser took 0.37ms. Allocated memory is still 109.1MB. Free memory is still 78.2MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-26 10:48:41,654 INFO L158 Benchmark]: CACSL2BoogieTranslator took 270.02ms. Allocated memory is still 159.4MB. Free memory was 122.0MB in the beginning and 126.7MB in the end (delta: -4.7MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2023-11-26 10:48:41,655 INFO L158 Benchmark]: Boogie Procedure Inliner took 32.82ms. Allocated memory is still 159.4MB. Free memory was 126.7MB in the beginning and 125.6MB in the end (delta: 1.2MB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-26 10:48:41,655 INFO L158 Benchmark]: Boogie Preprocessor took 36.98ms. Allocated memory is still 159.4MB. Free memory was 125.6MB in the beginning and 124.1MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-26 10:48:41,656 INFO L158 Benchmark]: RCFGBuilder took 280.62ms. Allocated memory is still 159.4MB. Free memory was 124.1MB in the beginning and 115.7MB in the end (delta: 8.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2023-11-26 10:48:41,662 INFO L158 Benchmark]: BuchiAutomizer took 395.07ms. Allocated memory is still 159.4MB. Free memory was 115.7MB in the beginning and 98.9MB in the end (delta: 16.8MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2023-11-26 10:48:41,663 INFO L158 Benchmark]: Witness Printer took 3.98ms. Allocated memory is still 159.4MB. Free memory is still 98.9MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-26 10:48:41,666 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.37ms. Allocated memory is still 109.1MB. Free memory is still 78.2MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 270.02ms. Allocated memory is still 159.4MB. Free memory was 122.0MB in the beginning and 126.7MB in the end (delta: -4.7MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 32.82ms. Allocated memory is still 159.4MB. Free memory was 126.7MB in the beginning and 125.6MB in the end (delta: 1.2MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 36.98ms. Allocated memory is still 159.4MB. Free memory was 125.6MB in the beginning and 124.1MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 280.62ms. Allocated memory is still 159.4MB. Free memory was 124.1MB in the beginning and 115.7MB in the end (delta: 8.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * BuchiAutomizer took 395.07ms. Allocated memory is still 159.4MB. Free memory was 115.7MB in the beginning and 98.9MB in the end (delta: 16.8MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * Witness Printer took 3.98ms. Allocated memory is still 159.4MB. Free memory is still 98.9MB. There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 1 terminating modules (1 trivial, 0 deterministic, 0 nondeterministic). 1 modules have a trivial ranking function, the largest among these consists of 2 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 0.3s and 2 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 1. Minimization of nondet autom 0. Automata minimization No data available. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had -1 states and ocurred in iteration -1. Nontrivial modules had stage [0, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 0 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 0 mSDsluCounter, 6 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 0 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 0 IncrementalHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 0 mSolverCounterUnsat, 6 mSDtfsCounter, 0 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown LassoAnalysisResults: nont0 unkn0 SFLI1 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: Termination proven Buchi Automizer proved that your program is terminating RESULT: Ultimate proved your program to be correct! [2023-11-26 10:48:41,699 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44f81647-0645-4bf5-82d5-485b67678f3b/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE