./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/termination-restricted-15/Ex03.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 0e0057cc 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_b612dcb5-33f5-445e-9ac9-ceaa99e04045/bin/uautomizer-verify-VRDe98Ueme/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b612dcb5-33f5-445e-9ac9-ceaa99e04045/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_b612dcb5-33f5-445e-9ac9-ceaa99e04045/bin/uautomizer-verify-VRDe98Ueme/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b612dcb5-33f5-445e-9ac9-ceaa99e04045/bin/uautomizer-verify-VRDe98Ueme/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/termination-restricted-15/Ex03.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b612dcb5-33f5-445e-9ac9-ceaa99e04045/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_b612dcb5-33f5-445e-9ac9-ceaa99e04045/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 b31ed4b72f45e3756b3103e506bd8e9f5ed0e7b74e7d7650bd4662c6650f610a --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-11-26 11:52:23,181 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-26 11:52:23,254 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b612dcb5-33f5-445e-9ac9-ceaa99e04045/bin/uautomizer-verify-VRDe98Ueme/config/svcomp-Termination-64bit-Automizer_Default.epf [2023-11-26 11:52:23,260 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-26 11:52:23,261 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-26 11:52:23,289 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-26 11:52:23,290 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-26 11:52:23,290 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-26 11:52:23,291 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-11-26 11:52:23,292 INFO L153 SettingsManager]: * Use memory slicer=true [2023-11-26 11:52:23,293 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-26 11:52:23,293 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-26 11:52:23,294 INFO L153 SettingsManager]: * Use SBE=true [2023-11-26 11:52:23,295 INFO L151 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2023-11-26 11:52:23,295 INFO L153 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2023-11-26 11:52:23,296 INFO L153 SettingsManager]: * Use old map elimination=false [2023-11-26 11:52:23,296 INFO L153 SettingsManager]: * Use external solver (rank synthesis)=false [2023-11-26 11:52:23,297 INFO L153 SettingsManager]: * Use only trivial implications for array writes=true [2023-11-26 11:52:23,297 INFO L153 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2023-11-26 11:52:23,298 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-26 11:52:23,298 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2023-11-26 11:52:23,299 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-26 11:52:23,299 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-26 11:52:23,300 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2023-11-26 11:52:23,300 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2023-11-26 11:52:23,301 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2023-11-26 11:52:23,301 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-26 11:52:23,302 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-26 11:52:23,302 INFO L153 SettingsManager]: * Assume nondeterminstic values are in range=false [2023-11-26 11:52:23,303 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-26 11:52:23,303 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-26 11:52:23,303 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-26 11:52:23,304 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-26 11:52:23,304 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-26 11:52:23,305 INFO L151 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2023-11-26 11:52:23,305 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_b612dcb5-33f5-445e-9ac9-ceaa99e04045/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b612dcb5-33f5-445e-9ac9-ceaa99e04045/bin/uautomizer-verify-VRDe98Ueme Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> b31ed4b72f45e3756b3103e506bd8e9f5ed0e7b74e7d7650bd4662c6650f610a [2023-11-26 11:52:23,548 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-26 11:52:23,570 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-26 11:52:23,573 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-26 11:52:23,575 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-26 11:52:23,575 INFO L274 PluginConnector]: CDTParser initialized [2023-11-26 11:52:23,589 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b612dcb5-33f5-445e-9ac9-ceaa99e04045/bin/uautomizer-verify-VRDe98Ueme/../../sv-benchmarks/c/termination-restricted-15/Ex03.c [2023-11-26 11:52:26,605 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-26 11:52:26,845 INFO L384 CDTParser]: Found 1 translation units. [2023-11-26 11:52:26,845 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b612dcb5-33f5-445e-9ac9-ceaa99e04045/sv-benchmarks/c/termination-restricted-15/Ex03.c [2023-11-26 11:52:26,853 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b612dcb5-33f5-445e-9ac9-ceaa99e04045/bin/uautomizer-verify-VRDe98Ueme/data/abdecdd71/2d11ccaf782f4e09901c05e78f0bf50a/FLAG062d78a64 [2023-11-26 11:52:26,867 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b612dcb5-33f5-445e-9ac9-ceaa99e04045/bin/uautomizer-verify-VRDe98Ueme/data/abdecdd71/2d11ccaf782f4e09901c05e78f0bf50a [2023-11-26 11:52:26,870 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-26 11:52:26,872 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-26 11:52:26,873 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-26 11:52:26,873 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-26 11:52:26,878 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-26 11:52:26,879 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.11 11:52:26" (1/1) ... [2023-11-26 11:52:26,880 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3904a2ea and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:52:26, skipping insertion in model container [2023-11-26 11:52:26,881 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.11 11:52:26" (1/1) ... [2023-11-26 11:52:26,900 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-26 11:52:27,033 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-26 11:52:27,038 INFO L202 MainTranslator]: Completed pre-run [2023-11-26 11:52:27,049 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-26 11:52:27,059 INFO L206 MainTranslator]: Completed translation [2023-11-26 11:52:27,060 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:52:27 WrapperNode [2023-11-26 11:52:27,060 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-26 11:52:27,061 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-26 11:52:27,062 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-26 11:52:27,062 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-26 11:52:27,070 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:52:27" (1/1) ... [2023-11-26 11:52:27,074 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:52:27" (1/1) ... [2023-11-26 11:52:27,090 INFO L138 Inliner]: procedures = 4, calls = 2, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 14 [2023-11-26 11:52:27,091 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-26 11:52:27,092 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-26 11:52:27,092 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-26 11:52:27,092 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-26 11:52:27,103 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:52:27" (1/1) ... [2023-11-26 11:52:27,104 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:52:27" (1/1) ... [2023-11-26 11:52:27,104 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:52:27" (1/1) ... [2023-11-26 11:52:27,110 INFO L175 MemorySlicer]: No memory access in input program. [2023-11-26 11:52:27,111 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:52:27" (1/1) ... [2023-11-26 11:52:27,111 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:52:27" (1/1) ... [2023-11-26 11:52:27,112 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:52:27" (1/1) ... [2023-11-26 11:52:27,116 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:52:27" (1/1) ... [2023-11-26 11:52:27,117 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:52:27" (1/1) ... [2023-11-26 11:52:27,118 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:52:27" (1/1) ... [2023-11-26 11:52:27,119 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-26 11:52:27,120 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-26 11:52:27,120 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-26 11:52:27,120 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-26 11:52:27,121 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:52:27" (1/1) ... [2023-11-26 11:52:27,127 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-26 11:52:27,139 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b612dcb5-33f5-445e-9ac9-ceaa99e04045/bin/uautomizer-verify-VRDe98Ueme/z3 [2023-11-26 11:52:27,153 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b612dcb5-33f5-445e-9ac9-ceaa99e04045/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-26 11:52:27,176 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b612dcb5-33f5-445e-9ac9-ceaa99e04045/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2023-11-26 11:52:27,199 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-26 11:52:27,199 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-26 11:52:27,276 INFO L241 CfgBuilder]: Building ICFG [2023-11-26 11:52:27,279 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-26 11:52:27,342 INFO L282 CfgBuilder]: Performing block encoding [2023-11-26 11:52:27,352 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-26 11:52:27,352 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-11-26 11:52:27,354 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 11:52:27 BoogieIcfgContainer [2023-11-26 11:52:27,354 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-26 11:52:27,355 INFO L112 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2023-11-26 11:52:27,355 INFO L270 PluginConnector]: Initializing BuchiAutomizer... [2023-11-26 11:52:27,359 INFO L274 PluginConnector]: BuchiAutomizer initialized [2023-11-26 11:52:27,360 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2023-11-26 11:52:27,360 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 26.11 11:52:26" (1/3) ... [2023-11-26 11:52:27,361 INFO L204 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@4d52b54b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 26.11 11:52:27, skipping insertion in model container [2023-11-26 11:52:27,361 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2023-11-26 11:52:27,362 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:52:27" (2/3) ... [2023-11-26 11:52:27,362 INFO L204 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@4d52b54b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 26.11 11:52:27, skipping insertion in model container [2023-11-26 11:52:27,362 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2023-11-26 11:52:27,362 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 11:52:27" (3/3) ... [2023-11-26 11:52:27,364 INFO L332 chiAutomizerObserver]: Analyzing ICFG Ex03.c [2023-11-26 11:52:27,421 INFO L303 stractBuchiCegarLoop]: Interprodecural is true [2023-11-26 11:52:27,421 INFO L304 stractBuchiCegarLoop]: Hoare is false [2023-11-26 11:52:27,421 INFO L305 stractBuchiCegarLoop]: Compute interpolants for ForwardPredicates [2023-11-26 11:52:27,421 INFO L306 stractBuchiCegarLoop]: Backedges is STRAIGHT_LINE [2023-11-26 11:52:27,421 INFO L307 stractBuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2023-11-26 11:52:27,421 INFO L308 stractBuchiCegarLoop]: Difference is false [2023-11-26 11:52:27,422 INFO L309 stractBuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2023-11-26 11:52:27,422 INFO L313 stractBuchiCegarLoop]: ======== Iteration 0 == of CEGAR loop == BuchiAutomatonCegarLoop ======== [2023-11-26 11:52:27,426 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) [2023-11-26 11:52:27,445 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2023-11-26 11:52:27,445 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-11-26 11:52:27,445 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-11-26 11:52:27,451 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1] [2023-11-26 11:52:27,451 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1] [2023-11-26 11:52:27,451 INFO L335 stractBuchiCegarLoop]: ======== Iteration 1 ============ [2023-11-26 11:52:27,451 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) [2023-11-26 11:52:27,452 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2023-11-26 11:52:27,452 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-11-26 11:52:27,453 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-11-26 11:52:27,453 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1] [2023-11-26 11:52:27,453 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1] [2023-11-26 11:52:27,461 INFO L748 eck$LassoCheckResult]: Stem: 6#$Ultimate##0true assume { :begin_inline_ULTIMATE.init } true; 8#L-1true assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet0#1, main_~i~0#1;havoc main_~i~0#1;havoc main_#t~nondet0#1;main_~i~0#1 := main_#t~nondet0#1;havoc main_#t~nondet0#1; 3#L10-2true [2023-11-26 11:52:27,461 INFO L750 eck$LassoCheckResult]: Loop: 3#L10-2true assume !!(main_~i~0#1 < 0); 5#L10true assume !(-5 != main_~i~0#1); 3#L10-2true [2023-11-26 11:52:27,467 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 11:52:27,468 INFO L85 PathProgramCache]: Analyzing trace with hash 963, now seen corresponding path program 1 times [2023-11-26 11:52:27,477 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 11:52:27,478 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1326600383] [2023-11-26 11:52:27,478 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 11:52:27,479 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 11:52:27,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-26 11:52:27,560 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-26 11:52:27,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-26 11:52:27,579 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-26 11:52:27,583 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 11:52:27,583 INFO L85 PathProgramCache]: Analyzing trace with hash 1318, now seen corresponding path program 1 times [2023-11-26 11:52:27,583 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 11:52:27,583 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1827463048] [2023-11-26 11:52:27,584 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 11:52:27,584 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 11:52:27,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-26 11:52:27,591 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-26 11:52:27,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-26 11:52:27,596 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-26 11:52:27,597 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 11:52:27,598 INFO L85 PathProgramCache]: Analyzing trace with hash 925800, now seen corresponding path program 1 times [2023-11-26 11:52:27,598 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 11:52:27,598 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1119665911] [2023-11-26 11:52:27,599 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 11:52:27,599 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 11:52:27,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-26 11:52:27,605 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-26 11:52:27,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-26 11:52:27,610 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-26 11:52:27,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-26 11:52:27,665 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-26 11:52:27,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-26 11:52:27,686 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 26.11 11:52:27 BoogieIcfgContainer [2023-11-26 11:52:27,687 INFO L131 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2023-11-26 11:52:27,687 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-26 11:52:27,687 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-26 11:52:27,688 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-26 11:52:27,688 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 11:52:27" (3/4) ... [2023-11-26 11:52:27,690 INFO L134 WitnessPrinter]: Generating witness for non-termination counterexample [2023-11-26 11:52:27,725 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b612dcb5-33f5-445e-9ac9-ceaa99e04045/bin/uautomizer-verify-VRDe98Ueme/witness.graphml [2023-11-26 11:52:27,725 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-26 11:52:27,727 INFO L158 Benchmark]: Toolchain (without parser) took 854.25ms. Allocated memory is still 146.8MB. Free memory was 114.8MB in the beginning and 76.4MB in the end (delta: 38.3MB). Peak memory consumption was 37.7MB. Max. memory is 16.1GB. [2023-11-26 11:52:27,728 INFO L158 Benchmark]: CDTParser took 0.35ms. Allocated memory is still 146.8MB. Free memory was 122.6MB in the beginning and 122.5MB in the end (delta: 66.4kB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-26 11:52:27,728 INFO L158 Benchmark]: CACSL2BoogieTranslator took 187.48ms. Allocated memory is still 146.8MB. Free memory was 114.2MB in the beginning and 105.2MB in the end (delta: 9.0MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2023-11-26 11:52:27,729 INFO L158 Benchmark]: Boogie Procedure Inliner took 29.78ms. Allocated memory is still 146.8MB. Free memory was 105.2MB in the beginning and 103.7MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-26 11:52:27,730 INFO L158 Benchmark]: Boogie Preprocessor took 27.60ms. Allocated memory is still 146.8MB. Free memory was 103.7MB in the beginning and 102.2MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-26 11:52:27,731 INFO L158 Benchmark]: RCFGBuilder took 234.04ms. Allocated memory is still 146.8MB. Free memory was 102.2MB in the beginning and 93.8MB in the end (delta: 8.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2023-11-26 11:52:27,731 INFO L158 Benchmark]: BuchiAutomizer took 331.74ms. Allocated memory is still 146.8MB. Free memory was 93.8MB in the beginning and 78.0MB in the end (delta: 15.8MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2023-11-26 11:52:27,732 INFO L158 Benchmark]: Witness Printer took 37.78ms. Allocated memory is still 146.8MB. Free memory was 78.0MB in the beginning and 76.4MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-26 11:52:27,735 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.35ms. Allocated memory is still 146.8MB. Free memory was 122.6MB in the beginning and 122.5MB in the end (delta: 66.4kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 187.48ms. Allocated memory is still 146.8MB. Free memory was 114.2MB in the beginning and 105.2MB in the end (delta: 9.0MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 29.78ms. Allocated memory is still 146.8MB. Free memory was 105.2MB in the beginning and 103.7MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 27.60ms. Allocated memory is still 146.8MB. Free memory was 103.7MB in the beginning and 102.2MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 234.04ms. Allocated memory is still 146.8MB. Free memory was 102.2MB in the beginning and 93.8MB in the end (delta: 8.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * BuchiAutomizer took 331.74ms. Allocated memory is still 146.8MB. Free memory was 93.8MB in the beginning and 78.0MB in the end (delta: 15.8MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * Witness Printer took 37.78ms. Allocated memory is still 146.8MB. Free memory was 78.0MB in the beginning and 76.4MB in the end (delta: 1.5MB). 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 0.2s and 1 iterations. TraceHistogramMax:1. Analysis of lassos took 0.2s. Construction of modules took 0.0s. Büchi inclusion checks took 0.0s. Highest rank in rank-based complementation 0. Minimization of det autom 0. Minimization of nondet autom 0. Automata minimization No data available. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had -1 states and ocurred in iteration -1. Nontrivial modules had stage [0, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: LassoAnalysisResults: nont1 unkn0 SFLI0 SFLT0 conc0 concLT0 SILN0 SILU0 SILI0 SILT0 lasso0 LassoPreprocessingBenchmarks: LassoTerminationAnalysisBenchmarks: not availableLassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 0 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 0 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.0s InitialAbstractionConstructionTime: 0.0s - TerminationAnalysisResult: Nontermination possible Buchi Automizer proved that your program is nonterminating for some inputs - LassoShapedNonTerminationArgument [Line: 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 < 0 [L10] COND FALSE !(i != -5) 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 < 0 [L10] COND FALSE !(i != -5) End of lasso representation. RESULT: Ultimate proved your program to be incorrect! [2023-11-26 11:52:27,759 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b612dcb5-33f5-445e-9ac9-ceaa99e04045/bin/uautomizer-verify-VRDe98Ueme/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)