./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/termination-crafted-lit/Urban-WST2013-Fig1.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 4fc63b2a 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_daf07a54-0581-4abe-aae4-49436bb726c6/bin/uautomizer-verify-4GaUIPS5ZU/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_daf07a54-0581-4abe-aae4-49436bb726c6/bin/uautomizer-verify-4GaUIPS5ZU/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_daf07a54-0581-4abe-aae4-49436bb726c6/bin/uautomizer-verify-4GaUIPS5ZU/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_daf07a54-0581-4abe-aae4-49436bb726c6/bin/uautomizer-verify-4GaUIPS5ZU/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/termination-crafted-lit/Urban-WST2013-Fig1.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_daf07a54-0581-4abe-aae4-49436bb726c6/bin/uautomizer-verify-4GaUIPS5ZU/config/svcomp-Termination-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_daf07a54-0581-4abe-aae4-49436bb726c6/bin/uautomizer-verify-4GaUIPS5ZU --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 7ec1d1d4856d24b14cb09101172e0975902985e260ca74737e781ce301d37cbb --- Real Ultimate output --- This is Ultimate 0.2.5-dev-4fc63b2 [2024-10-31 22:01:26,106 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-10-31 22:01:26,194 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_daf07a54-0581-4abe-aae4-49436bb726c6/bin/uautomizer-verify-4GaUIPS5ZU/config/svcomp-Termination-64bit-Automizer_Default.epf [2024-10-31 22:01:26,198 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-10-31 22:01:26,199 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-10-31 22:01:26,225 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-10-31 22:01:26,231 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-10-31 22:01:26,232 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-10-31 22:01:26,232 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-10-31 22:01:26,233 INFO L153 SettingsManager]: * Use memory slicer=true [2024-10-31 22:01:26,233 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-10-31 22:01:26,234 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-10-31 22:01:26,234 INFO L153 SettingsManager]: * Use SBE=true [2024-10-31 22:01:26,235 INFO L151 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2024-10-31 22:01:26,235 INFO L153 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2024-10-31 22:01:26,239 INFO L153 SettingsManager]: * Use old map elimination=false [2024-10-31 22:01:26,240 INFO L153 SettingsManager]: * Use external solver (rank synthesis)=false [2024-10-31 22:01:26,240 INFO L153 SettingsManager]: * Use only trivial implications for array writes=true [2024-10-31 22:01:26,241 INFO L153 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2024-10-31 22:01:26,241 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-10-31 22:01:26,241 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2024-10-31 22:01:26,245 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-10-31 22:01:26,249 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-10-31 22:01:26,249 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2024-10-31 22:01:26,250 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2024-10-31 22:01:26,276 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2024-10-31 22:01:26,276 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-10-31 22:01:26,276 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-10-31 22:01:26,277 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-10-31 22:01:26,281 INFO L153 SettingsManager]: * Assume nondeterminstic values are in range=false [2024-10-31 22:01:26,282 INFO L153 SettingsManager]: * Use constant arrays=true [2024-10-31 22:01:26,282 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-10-31 22:01:26,282 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-10-31 22:01:26,283 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-10-31 22:01:26,283 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-10-31 22:01:26,283 INFO L151 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2024-10-31 22:01:26,284 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_daf07a54-0581-4abe-aae4-49436bb726c6/bin/uautomizer-verify-4GaUIPS5ZU/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_daf07a54-0581-4abe-aae4-49436bb726c6/bin/uautomizer-verify-4GaUIPS5ZU Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 7ec1d1d4856d24b14cb09101172e0975902985e260ca74737e781ce301d37cbb [2024-10-31 22:01:26,647 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-10-31 22:01:26,680 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-10-31 22:01:26,684 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-10-31 22:01:26,686 INFO L270 PluginConnector]: Initializing CDTParser... [2024-10-31 22:01:26,687 INFO L274 PluginConnector]: CDTParser initialized [2024-10-31 22:01:26,689 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_daf07a54-0581-4abe-aae4-49436bb726c6/bin/uautomizer-verify-4GaUIPS5ZU/../../sv-benchmarks/c/termination-crafted-lit/Urban-WST2013-Fig1.c Unable to find full path for "g++" [2024-10-31 22:01:28,807 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-10-31 22:01:29,033 INFO L384 CDTParser]: Found 1 translation units. [2024-10-31 22:01:29,034 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_daf07a54-0581-4abe-aae4-49436bb726c6/sv-benchmarks/c/termination-crafted-lit/Urban-WST2013-Fig1.c [2024-10-31 22:01:29,045 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_daf07a54-0581-4abe-aae4-49436bb726c6/bin/uautomizer-verify-4GaUIPS5ZU/data/5eee2bd1a/fe639b98c6b340148231e689718511a8/FLAG2c6f71dbe [2024-10-31 22:01:29,384 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_daf07a54-0581-4abe-aae4-49436bb726c6/bin/uautomizer-verify-4GaUIPS5ZU/data/5eee2bd1a/fe639b98c6b340148231e689718511a8 [2024-10-31 22:01:29,386 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-10-31 22:01:29,388 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-10-31 22:01:29,389 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-10-31 22:01:29,390 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-10-31 22:01:29,396 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-10-31 22:01:29,397 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 31.10 10:01:29" (1/1) ... [2024-10-31 22:01:29,399 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@70523aac and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:01:29, skipping insertion in model container [2024-10-31 22:01:29,399 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 31.10 10:01:29" (1/1) ... [2024-10-31 22:01:29,423 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-10-31 22:01:29,635 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-31 22:01:29,644 INFO L200 MainTranslator]: Completed pre-run [2024-10-31 22:01:29,656 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-31 22:01:29,672 INFO L204 MainTranslator]: Completed translation [2024-10-31 22:01:29,673 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:01:29 WrapperNode [2024-10-31 22:01:29,673 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-10-31 22:01:29,675 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-10-31 22:01:29,675 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-10-31 22:01:29,675 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-10-31 22:01:29,684 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:01:29" (1/1) ... [2024-10-31 22:01:29,689 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:01:29" (1/1) ... [2024-10-31 22:01:29,713 INFO L138 Inliner]: procedures = 4, calls = 2, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 14 [2024-10-31 22:01:29,714 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-10-31 22:01:29,715 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-10-31 22:01:29,716 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-10-31 22:01:29,716 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-10-31 22:01:29,728 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:01:29" (1/1) ... [2024-10-31 22:01:29,729 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:01:29" (1/1) ... [2024-10-31 22:01:29,729 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:01:29" (1/1) ... [2024-10-31 22:01:29,734 INFO L175 MemorySlicer]: No memory access in input program. [2024-10-31 22:01:29,734 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:01:29" (1/1) ... [2024-10-31 22:01:29,735 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:01:29" (1/1) ... [2024-10-31 22:01:29,736 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:01:29" (1/1) ... [2024-10-31 22:01:29,741 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:01:29" (1/1) ... [2024-10-31 22:01:29,742 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:01:29" (1/1) ... [2024-10-31 22:01:29,743 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:01:29" (1/1) ... [2024-10-31 22:01:29,744 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-10-31 22:01:29,747 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-10-31 22:01:29,748 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-10-31 22:01:29,748 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-10-31 22:01:29,749 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:01:29" (1/1) ... [2024-10-31 22:01:29,757 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 22:01:29,775 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_daf07a54-0581-4abe-aae4-49436bb726c6/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:01:29,795 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_daf07a54-0581-4abe-aae4-49436bb726c6/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-31 22:01:29,799 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_daf07a54-0581-4abe-aae4-49436bb726c6/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2024-10-31 22:01:29,828 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-10-31 22:01:29,829 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-10-31 22:01:29,903 INFO L238 CfgBuilder]: Building ICFG [2024-10-31 22:01:29,906 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-10-31 22:01:29,965 INFO L? ?]: Removed 3 outVars from TransFormulas that were not future-live. [2024-10-31 22:01:29,966 INFO L287 CfgBuilder]: Performing block encoding [2024-10-31 22:01:29,985 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-10-31 22:01:29,985 INFO L316 CfgBuilder]: Removed 1 assume(true) statements. [2024-10-31 22:01:29,987 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.10 10:01:29 BoogieIcfgContainer [2024-10-31 22:01:29,987 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-10-31 22:01:29,988 INFO L112 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2024-10-31 22:01:29,988 INFO L270 PluginConnector]: Initializing BuchiAutomizer... [2024-10-31 22:01:29,994 INFO L274 PluginConnector]: BuchiAutomizer initialized [2024-10-31 22:01:29,995 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2024-10-31 22:01:29,996 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 31.10 10:01:29" (1/3) ... [2024-10-31 22:01:29,998 INFO L204 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@66fe457f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 31.10 10:01:29, skipping insertion in model container [2024-10-31 22:01:29,998 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2024-10-31 22:01:29,999 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:01:29" (2/3) ... [2024-10-31 22:01:29,999 INFO L204 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@66fe457f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 31.10 10:01:29, skipping insertion in model container [2024-10-31 22:01:30,000 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2024-10-31 22:01:30,000 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.10 10:01:29" (3/3) ... [2024-10-31 22:01:30,001 INFO L332 chiAutomizerObserver]: Analyzing ICFG Urban-WST2013-Fig1.c [2024-10-31 22:01:30,068 INFO L300 stractBuchiCegarLoop]: Interprodecural is true [2024-10-31 22:01:30,068 INFO L301 stractBuchiCegarLoop]: Hoare is None [2024-10-31 22:01:30,069 INFO L302 stractBuchiCegarLoop]: Compute interpolants for ForwardPredicates [2024-10-31 22:01:30,069 INFO L303 stractBuchiCegarLoop]: Backedges is STRAIGHT_LINE [2024-10-31 22:01:30,070 INFO L304 stractBuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2024-10-31 22:01:30,070 INFO L305 stractBuchiCegarLoop]: Difference is false [2024-10-31 22:01:30,070 INFO L306 stractBuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2024-10-31 22:01:30,071 INFO L310 stractBuchiCegarLoop]: ======== Iteration 0 == of CEGAR loop == BuchiAutomatonCegarLoop ======== [2024-10-31 22:01:30,076 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) [2024-10-31 22:01:30,098 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2024-10-31 22:01:30,099 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-10-31 22:01:30,100 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-10-31 22:01:30,107 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1] [2024-10-31 22:01:30,107 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1] [2024-10-31 22:01:30,108 INFO L332 stractBuchiCegarLoop]: ======== Iteration 1 ============ [2024-10-31 22:01:30,109 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) [2024-10-31 22:01:30,111 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2024-10-31 22:01:30,112 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-10-31 22:01:30,112 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-10-31 22:01:30,113 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1] [2024-10-31 22:01:30,113 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1] [2024-10-31 22:01:30,123 INFO L745 eck$LassoCheckResult]: Stem: 7#$Ultimate##0true assume { :begin_inline_ULTIMATE.init } true; 8#L-1true assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet0#1, main_~x~0#1;havoc main_~x~0#1;havoc main_#t~nondet0#1;main_~x~0#1 := main_#t~nondet0#1;havoc main_#t~nondet0#1; 6#L18-2true [2024-10-31 22:01:30,123 INFO L747 eck$LassoCheckResult]: Loop: 6#L18-2true assume !!(main_~x~0#1 <= 10); 3#L18true assume !(main_~x~0#1 > 6); 6#L18-2true [2024-10-31 22:01:30,130 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:01:30,132 INFO L85 PathProgramCache]: Analyzing trace with hash 963, now seen corresponding path program 1 times [2024-10-31 22:01:30,143 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:01:30,144 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1769885415] [2024-10-31 22:01:30,144 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:01:30,145 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:01:30,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-31 22:01:30,250 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-31 22:01:30,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-31 22:01:30,272 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-10-31 22:01:30,275 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:01:30,276 INFO L85 PathProgramCache]: Analyzing trace with hash 1318, now seen corresponding path program 1 times [2024-10-31 22:01:30,276 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:01:30,276 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [269214815] [2024-10-31 22:01:30,276 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:01:30,277 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:01:30,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-31 22:01:30,290 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-31 22:01:30,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-31 22:01:30,297 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-10-31 22:01:30,299 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:01:30,299 INFO L85 PathProgramCache]: Analyzing trace with hash 925800, now seen corresponding path program 1 times [2024-10-31 22:01:30,299 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:01:30,300 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1290426452] [2024-10-31 22:01:30,300 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:01:30,300 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:01:30,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-31 22:01:30,307 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-31 22:01:30,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-31 22:01:30,311 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-10-31 22:01:30,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-31 22:01:30,381 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-31 22:01:30,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-31 22:01:30,404 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 31.10 10:01:30 BoogieIcfgContainer [2024-10-31 22:01:30,405 INFO L131 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2024-10-31 22:01:30,405 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-10-31 22:01:30,406 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-10-31 22:01:30,406 INFO L274 PluginConnector]: Witness Printer initialized [2024-10-31 22:01:30,407 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.10 10:01:29" (3/4) ... [2024-10-31 22:01:30,409 INFO L139 WitnessPrinter]: Generating witness for non-termination counterexample [2024-10-31 22:01:30,439 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_daf07a54-0581-4abe-aae4-49436bb726c6/bin/uautomizer-verify-4GaUIPS5ZU/witness.graphml [2024-10-31 22:01:30,439 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-10-31 22:01:30,441 INFO L158 Benchmark]: Toolchain (without parser) took 1052.40ms. Allocated memory is still 127.9MB. Free memory was 92.4MB in the beginning and 52.1MB in the end (delta: 40.3MB). Peak memory consumption was 41.9MB. Max. memory is 16.1GB. [2024-10-31 22:01:30,442 INFO L158 Benchmark]: CDTParser took 0.75ms. Allocated memory is still 127.9MB. Free memory is still 97.9MB. There was no memory consumed. Max. memory is 16.1GB. [2024-10-31 22:01:30,442 INFO L158 Benchmark]: CACSL2BoogieTranslator took 284.30ms. Allocated memory is still 127.9MB. Free memory was 92.4MB in the beginning and 81.0MB in the end (delta: 11.4MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2024-10-31 22:01:30,443 INFO L158 Benchmark]: Boogie Procedure Inliner took 39.69ms. Allocated memory is still 127.9MB. Free memory was 81.0MB in the beginning and 79.8MB in the end (delta: 1.2MB). There was no memory consumed. Max. memory is 16.1GB. [2024-10-31 22:01:30,444 INFO L158 Benchmark]: Boogie Preprocessor took 30.02ms. Allocated memory is still 127.9MB. Free memory was 79.8MB in the beginning and 78.6MB in the end (delta: 1.3MB). There was no memory consumed. Max. memory is 16.1GB. [2024-10-31 22:01:30,444 INFO L158 Benchmark]: RCFGBuilder took 239.67ms. Allocated memory is still 127.9MB. Free memory was 78.6MB in the beginning and 70.1MB in the end (delta: 8.5MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2024-10-31 22:01:30,445 INFO L158 Benchmark]: BuchiAutomizer took 416.65ms. Allocated memory is still 127.9MB. Free memory was 69.7MB in the beginning and 53.8MB in the end (delta: 15.9MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2024-10-31 22:01:30,446 INFO L158 Benchmark]: Witness Printer took 33.72ms. Allocated memory is still 127.9MB. Free memory was 53.8MB in the beginning and 52.1MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-10-31 22:01:30,449 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.75ms. Allocated memory is still 127.9MB. Free memory is still 97.9MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 284.30ms. Allocated memory is still 127.9MB. Free memory was 92.4MB in the beginning and 81.0MB in the end (delta: 11.4MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 39.69ms. Allocated memory is still 127.9MB. Free memory was 81.0MB in the beginning and 79.8MB in the end (delta: 1.2MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 30.02ms. Allocated memory is still 127.9MB. Free memory was 79.8MB in the beginning and 78.6MB in the end (delta: 1.3MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 239.67ms. Allocated memory is still 127.9MB. Free memory was 78.6MB in the beginning and 70.1MB in the end (delta: 8.5MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * BuchiAutomizer took 416.65ms. Allocated memory is still 127.9MB. Free memory was 69.7MB in the beginning and 53.8MB in the end (delta: 15.9MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * Witness Printer took 33.72ms. Allocated memory is still 127.9MB. Free memory was 53.8MB in the beginning and 52.1MB in the end (delta: 1.7MB). 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: 17]: Nontermination argument in form of an infinite program execution. Nontermination argument in form of an infinite program execution. Stem: [L15] int x; [L16] x = __VERIFIER_nondet_int() Loop: [L17] COND TRUE x <= 10 [L18] COND FALSE !(x > 6) End of lasso representation. - StatisticsResult: NonterminationArgumentStatistics Fixpoint - NonterminatingLassoResult [Line: 17]: Nonterminating execution Found a nonterminating execution for the following lasso shaped sequence of statements. Stem: [L15] int x; [L16] x = __VERIFIER_nondet_int() Loop: [L17] COND TRUE x <= 10 [L18] COND FALSE !(x > 6) End of lasso representation. RESULT: Ultimate proved your program to be incorrect! [2024-10-31 22:01:30,489 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_daf07a54-0581-4abe-aae4-49436bb726c6/bin/uautomizer-verify-4GaUIPS5ZU/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)