./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/loops/nec40.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version d790fecc Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_204c8458-0170-4a8d-a981-6434d7cd98ae/bin/uautomizer-verify-aQ6SnzHsRB/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_204c8458-0170-4a8d-a981-6434d7cd98ae/bin/uautomizer-verify-aQ6SnzHsRB/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_204c8458-0170-4a8d-a981-6434d7cd98ae/bin/uautomizer-verify-aQ6SnzHsRB/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_204c8458-0170-4a8d-a981-6434d7cd98ae/bin/uautomizer-verify-aQ6SnzHsRB/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/loops/nec40.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_204c8458-0170-4a8d-a981-6434d7cd98ae/bin/uautomizer-verify-aQ6SnzHsRB/config/svcomp-Termination-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_204c8458-0170-4a8d-a981-6434d7cd98ae/bin/uautomizer-verify-aQ6SnzHsRB --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 32bit --witnessprinter.graph.data.programhash a8ae9bcd5a551c2558190e4ca1b7d8543f9adf38b9d950429bd2292753c8e588 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-d790fec [2024-11-28 02:50:21,370 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-28 02:50:21,469 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_204c8458-0170-4a8d-a981-6434d7cd98ae/bin/uautomizer-verify-aQ6SnzHsRB/config/svcomp-Termination-32bit-Automizer_Default.epf [2024-11-28 02:50:21,479 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-28 02:50:21,479 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-28 02:50:21,514 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-28 02:50:21,516 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-28 02:50:21,517 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-28 02:50:21,517 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-28 02:50:21,517 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-28 02:50:21,519 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-28 02:50:21,519 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-28 02:50:21,519 INFO L153 SettingsManager]: * Use SBE=true [2024-11-28 02:50:21,520 INFO L151 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2024-11-28 02:50:21,520 INFO L153 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2024-11-28 02:50:21,520 INFO L153 SettingsManager]: * Use old map elimination=false [2024-11-28 02:50:21,520 INFO L153 SettingsManager]: * Use external solver (rank synthesis)=false [2024-11-28 02:50:21,520 INFO L153 SettingsManager]: * Use only trivial implications for array writes=true [2024-11-28 02:50:21,521 INFO L153 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2024-11-28 02:50:21,521 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-28 02:50:21,521 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2024-11-28 02:50:21,521 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-28 02:50:21,521 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-28 02:50:21,521 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-28 02:50:21,521 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-28 02:50:21,522 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2024-11-28 02:50:21,522 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2024-11-28 02:50:21,522 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2024-11-28 02:50:21,522 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-28 02:50:21,522 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-28 02:50:21,522 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-28 02:50:21,522 INFO L153 SettingsManager]: * Assume nondeterminstic values are in range=false [2024-11-28 02:50:21,522 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-11-28 02:50:21,522 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-28 02:50:21,523 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-28 02:50:21,523 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-28 02:50:21,524 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-28 02:50:21,524 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL_NO_AM [2024-11-28 02:50:21,524 INFO L151 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2024-11-28 02:50:21,524 INFO L153 SettingsManager]: * TransformationType=MODULO_NEIGHBOR 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_204c8458-0170-4a8d-a981-6434d7cd98ae/bin/uautomizer-verify-aQ6SnzHsRB 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 -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> a8ae9bcd5a551c2558190e4ca1b7d8543f9adf38b9d950429bd2292753c8e588 [2024-11-28 02:50:21,843 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-28 02:50:21,854 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-28 02:50:21,856 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-28 02:50:21,858 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-28 02:50:21,858 INFO L274 PluginConnector]: CDTParser initialized [2024-11-28 02:50:21,860 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_204c8458-0170-4a8d-a981-6434d7cd98ae/bin/uautomizer-verify-aQ6SnzHsRB/../../sv-benchmarks/c/loops/nec40.c [2024-11-28 02:50:24,768 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_204c8458-0170-4a8d-a981-6434d7cd98ae/bin/uautomizer-verify-aQ6SnzHsRB/data/1eb220fa0/1542a97782394634b42669652996749f/FLAGbbbed2653 [2024-11-28 02:50:25,027 INFO L384 CDTParser]: Found 1 translation units. [2024-11-28 02:50:25,027 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_204c8458-0170-4a8d-a981-6434d7cd98ae/sv-benchmarks/c/loops/nec40.c [2024-11-28 02:50:25,034 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_204c8458-0170-4a8d-a981-6434d7cd98ae/bin/uautomizer-verify-aQ6SnzHsRB/data/1eb220fa0/1542a97782394634b42669652996749f/FLAGbbbed2653 [2024-11-28 02:50:25,350 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_204c8458-0170-4a8d-a981-6434d7cd98ae/bin/uautomizer-verify-aQ6SnzHsRB/data/1eb220fa0/1542a97782394634b42669652996749f [2024-11-28 02:50:25,353 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-28 02:50:25,354 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-28 02:50:25,355 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-28 02:50:25,355 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-28 02:50:25,359 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-28 02:50:25,360 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 02:50:25" (1/1) ... [2024-11-28 02:50:25,361 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@60bdbd82 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:50:25, skipping insertion in model container [2024-11-28 02:50:25,361 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 02:50:25" (1/1) ... [2024-11-28 02:50:25,375 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-28 02:50:25,565 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-28 02:50:25,600 INFO L200 MainTranslator]: Completed pre-run [2024-11-28 02:50:25,619 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-28 02:50:25,680 INFO L204 MainTranslator]: Completed translation [2024-11-28 02:50:25,682 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:50:25 WrapperNode [2024-11-28 02:50:25,682 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-28 02:50:25,683 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-28 02:50:25,683 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-28 02:50:25,683 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-28 02:50:25,693 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:50:25" (1/1) ... [2024-11-28 02:50:25,702 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:50:25" (1/1) ... [2024-11-28 02:50:25,751 INFO L138 Inliner]: procedures = 13, calls = 224, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 256 [2024-11-28 02:50:25,751 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-28 02:50:25,752 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-28 02:50:25,752 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-28 02:50:25,752 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-28 02:50:25,766 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:50:25" (1/1) ... [2024-11-28 02:50:25,766 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:50:25" (1/1) ... [2024-11-28 02:50:25,775 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:50:25" (1/1) ... [2024-11-28 02:50:25,806 INFO L175 MemorySlicer]: Split 215 memory accesses to 4 slices as follows [2, 8, 102, 103]. 48 percent of accesses are in the largest equivalence class. The 210 initializations are split as follows [2, 8, 100, 100]. The 2 writes are split as follows [0, 0, 0, 2]. [2024-11-28 02:50:25,810 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:50:25" (1/1) ... [2024-11-28 02:50:25,810 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:50:25" (1/1) ... [2024-11-28 02:50:25,830 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:50:25" (1/1) ... [2024-11-28 02:50:25,838 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:50:25" (1/1) ... [2024-11-28 02:50:25,845 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:50:25" (1/1) ... [2024-11-28 02:50:25,847 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:50:25" (1/1) ... [2024-11-28 02:50:25,848 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:50:25" (1/1) ... [2024-11-28 02:50:25,851 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-28 02:50:25,855 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-28 02:50:25,855 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-28 02:50:25,856 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-28 02:50:25,856 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:50:25" (1/1) ... [2024-11-28 02:50:25,864 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-28 02:50:25,878 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_204c8458-0170-4a8d-a981-6434d7cd98ae/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 02:50:25,893 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_204c8458-0170-4a8d-a981-6434d7cd98ae/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-28 02:50:25,896 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_204c8458-0170-4a8d-a981-6434d7cd98ae/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2024-11-28 02:50:25,925 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-11-28 02:50:25,926 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-11-28 02:50:25,926 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2024-11-28 02:50:25,926 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2024-11-28 02:50:25,926 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-28 02:50:25,926 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-28 02:50:25,926 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-28 02:50:25,926 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-11-28 02:50:25,927 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-11-28 02:50:25,927 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2024-11-28 02:50:25,928 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3 [2024-11-28 02:50:25,928 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-28 02:50:25,928 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-11-28 02:50:25,928 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-11-28 02:50:25,928 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2024-11-28 02:50:26,019 INFO L234 CfgBuilder]: Building ICFG [2024-11-28 02:50:26,022 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-28 02:50:26,373 INFO L? ?]: Removed 5 outVars from TransFormulas that were not future-live. [2024-11-28 02:50:26,373 INFO L283 CfgBuilder]: Performing block encoding [2024-11-28 02:50:26,386 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-28 02:50:26,388 INFO L312 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-28 02:50:26,389 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 02:50:26 BoogieIcfgContainer [2024-11-28 02:50:26,390 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-28 02:50:26,391 INFO L112 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2024-11-28 02:50:26,391 INFO L270 PluginConnector]: Initializing BuchiAutomizer... [2024-11-28 02:50:26,397 INFO L274 PluginConnector]: BuchiAutomizer initialized [2024-11-28 02:50:26,398 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2024-11-28 02:50:26,398 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 28.11 02:50:25" (1/3) ... [2024-11-28 02:50:26,399 INFO L204 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@4c2e6494 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 28.11 02:50:26, skipping insertion in model container [2024-11-28 02:50:26,399 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2024-11-28 02:50:26,399 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:50:25" (2/3) ... [2024-11-28 02:50:26,399 INFO L204 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@4c2e6494 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 28.11 02:50:26, skipping insertion in model container [2024-11-28 02:50:26,399 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2024-11-28 02:50:26,400 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 02:50:26" (3/3) ... [2024-11-28 02:50:26,402 INFO L363 chiAutomizerObserver]: Analyzing ICFG nec40.c [2024-11-28 02:50:26,455 INFO L300 stractBuchiCegarLoop]: Interprodecural is true [2024-11-28 02:50:26,455 INFO L301 stractBuchiCegarLoop]: Hoare is None [2024-11-28 02:50:26,455 INFO L302 stractBuchiCegarLoop]: Compute interpolants for ForwardPredicates [2024-11-28 02:50:26,455 INFO L303 stractBuchiCegarLoop]: Backedges is STRAIGHT_LINE [2024-11-28 02:50:26,455 INFO L304 stractBuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2024-11-28 02:50:26,455 INFO L305 stractBuchiCegarLoop]: Difference is false [2024-11-28 02:50:26,456 INFO L306 stractBuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2024-11-28 02:50:26,456 INFO L310 stractBuchiCegarLoop]: ======== Iteration 0 == of CEGAR loop == BuchiAutomatonCegarLoop ======== [2024-11-28 02:50:26,460 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 16 states, 15 states have (on average 1.3333333333333333) internal successors, (20), 15 states have internal predecessors, (20), 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) [2024-11-28 02:50:26,476 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2024-11-28 02:50:26,477 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-11-28 02:50:26,477 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-11-28 02:50:26,481 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1] [2024-11-28 02:50:26,481 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1] [2024-11-28 02:50:26,482 INFO L332 stractBuchiCegarLoop]: ======== Iteration 1 ============ [2024-11-28 02:50:26,482 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 16 states, 15 states have (on average 1.3333333333333333) internal successors, (20), 15 states have internal predecessors, (20), 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) [2024-11-28 02:50:26,483 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2024-11-28 02:50:26,483 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-11-28 02:50:26,483 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-11-28 02:50:26,483 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1] [2024-11-28 02:50:26,483 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1] [2024-11-28 02:50:26,496 INFO L747 eck$LassoCheckResult]: Stem: "assume { :begin_inline_ULTIMATE.init } true;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int#0(48, 1, 0, 1);call write~init~int#0(0, 1, 1, 1);call #Ultimate.allocInit(8, 2);call write~init~int#1(110, 2, 0, 1);call write~init~int#1(101, 2, 1, 1);call write~init~int#1(99, 2, 2, 1);call write~init~int#1(52, 2, 3, 1);call write~init~int#1(48, 2, 4, 1);call write~init~int#1(46, 2, 5, 1);call write~init~int#1(99, 2, 6, 1);call write~init~int#1(0, 2, 7, 1);call #Ultimate.allocInit(12, 3);call #Ultimate.allocInit(100, 4);~#x~0.base, ~#x~0.offset := 4, 0;call write~init~int#2(0, ~#x~0.base, ~#x~0.offset, 1);call write~init~int#2(0, ~#x~0.base, 1 + ~#x~0.offset, 1);call write~init~int#2(0, ~#x~0.base, 2 + ~#x~0.offset, 1);call write~init~int#2(0, ~#x~0.base, 3 + ~#x~0.offset, 1);call write~init~int#2(0, ~#x~0.base, 4 + ~#x~0.offset, 1);call write~init~int#2(0, ~#x~0.base, 5 + ~#x~0.offset, 1);call write~init~int#2(0, ~#x~0.base, 6 + ~#x~0.offset, 1);call write~init~int#2(0, ~#x~0.base, 7 + ~#x~0.offset, 1);call write~init~int#2(0, ~#x~0.base, 8 + ~#x~0.offset, 1);call write~init~int#2(0, ~#x~0.base, 9 + ~#x~0.offset, 1);call write~init~int#2(0, ~#x~0.base, 10 + ~#x~0.offset, 1);call write~init~int#2(0, ~#x~0.base, 11 + ~#x~0.offset, 1);call write~init~int#2(0, ~#x~0.base, 12 + ~#x~0.offset, 1);call write~init~int#2(0, ~#x~0.base, 13 + ~#x~0.offset, 1);call write~init~int#2(0, ~#x~0.base, 14 + ~#x~0.offset, 1);call write~init~int#2(0, ~#x~0.base, 15 + ~#x~0.offset, 1);call write~init~int#2(0, ~#x~0.base, 16 + ~#x~0.offset, 1);call write~init~int#2(0, ~#x~0.base, 17 + ~#x~0.offset, 1);call write~init~int#2(0, ~#x~0.base, 18 + ~#x~0.offset, 1);call write~init~int#2(0, ~#x~0.base, 19 + ~#x~0.offset, 1);call write~init~int#2(0, ~#x~0.base, 20 + ~#x~0.offset, 1);call write~init~int#2(0, ~#x~0.base, 21 + ~#x~0.offset, 1);call write~init~int#2(0, ~#x~0.base, 22 + ~#x~0.offset, 1);call write~init~int#2(0, ~#x~0.base, 23 + ~#x~0.offset, 1);call write~init~int#2(0, ~#x~0.base, 24 + ~#x~0.offset, 1);call write~init~int#2(0, ~#x~0.base, 25 + ~#x~0.offset, 1);call write~init~int#2(0, ~#x~0.base, 26 + ~#x~0.offset, 1);call write~init~int#2(0, ~#x~0.base, 27 + ~#x~0.offset, 1);call write~init~int#2(0, ~#x~0.base, 28 + ~#x~0.offset, 1);call write~init~int#2(0, ~#x~0.base, 29 + ~#x~0.offset, 1);call write~init~int#2(0, ~#x~0.base, 30 + ~#x~0.offset, 1);call write~init~int#2(0, ~#x~0.base, 31 + ~#x~0.offset, 1);call write~init~int#2(0, ~#x~0.base, 32 + ~#x~0.offset, 1);call write~init~int#2(0, ~#x~0.base, 33 + ~#x~0.offset, 1);call write~init~int#2(0, ~#x~0.base, 34 + ~#x~0.offset, 1);call write~init~int#2(0, ~#x~0.base, 35 + ~#x~0.offset, 1);call write~init~int#2(0, ~#x~0.base, 36 + ~#x~0.offset, 1);call write~init~int#2(0, ~#x~0.base, 37 + ~#x~0.offset, 1);call write~init~int#2(0, ~#x~0.base, 38 + ~#x~0.offset, 1);call write~init~int#2(0, ~#x~0.base, 39 + ~#x~0.offset, 1);call write~init~int#2(0, ~#x~0.base, 40 + ~#x~0.offset, 1);call write~init~int#2(0, ~#x~0.base, 41 + ~#x~0.offset, 1);call write~init~int#2(0, ~#x~0.base, 42 + ~#x~0.offset, 1);call write~init~int#2(0, ~#x~0.base, 43 + ~#x~0.offset, 1);call write~init~int#2(0, ~#x~0.base, 44 + ~#x~0.offset, 1);call write~init~int#2(0, ~#x~0.base, 45 + ~#x~0.offset, 1);call write~init~int#2(0, ~#x~0.base, 46 + ~#x~0.offset, 1);call write~init~int#2(0, ~#x~0.base, 47 + ~#x~0.offset, 1);call write~init~int#2(0, ~#x~0.base, 48 + ~#x~0.offset, 1);call write~init~int#2(0, ~#x~0.base, 49 + ~#x~0.offset, 1);call write~init~int#2(0, ~#x~0.base, 50 + ~#x~0.offset, 1);call write~init~int#2(0, ~#x~0.base, 51 + ~#x~0.offset, 1);call write~init~int#2(0, ~#x~0.base, 52 + ~#x~0.offset, 1);call write~init~int#2(0, ~#x~0.base, 53 + ~#x~0.offset, 1);call write~init~int#2(0, ~#x~0.base, 54 + ~#x~0.offset, 1);call write~init~int#2(0, ~#x~0.base, 55 + ~#x~0.offset, 1);call write~init~int#2(0, ~#x~0.base, 56 + ~#x~0.offset, 1);call write~init~int#2(0, ~#x~0.base, 57 + ~#x~0.offset, 1);call write~init~int#2(0, ~#x~0.base, 58 + ~#x~0.offset, 1);call write~init~int#2(0, ~#x~0.base, 59 + ~#x~0.offset, 1);call write~init~int#2(0, ~#x~0.base, 60 + ~#x~0.offset, 1);call write~init~int#2(0, ~#x~0.base, 61 + ~#x~0.offset, 1);call write~init~int#2(0, ~#x~0.base, 62 + ~#x~0.offset, 1);call write~init~int#2(0, ~#x~0.base, 63 + ~#x~0.offset, 1);call write~init~int#2(0, ~#x~0.base, 64 + ~#x~0.offset, 1);call write~init~int#2(0, ~#x~0.base, 65 + ~#x~0.offset, 1);call write~init~int#2(0, ~#x~0.base, 66 + ~#x~0.offset, 1);call write~init~int#2(0, ~#x~0.base, 67 + ~#x~0.offset, 1);call write~init~int#2(0, ~#x~0.base, 68 + ~#x~0.offset, 1);call write~init~int#2(0, ~#x~0.base, 69 + ~#x~0.offset, 1);call write~init~int#2(0, ~#x~0.base, 70 + ~#x~0.offset, 1);call write~init~int#2(0, ~#x~0.base, 71 + ~#x~0.offset, 1);call write~init~int#2(0, ~#x~0.base, 72 + ~#x~0.offset, 1);call write~init~int#2(0, ~#x~0.base, 73 + ~#x~0.offset, 1);call write~init~int#2(0, ~#x~0.base, 74 + ~#x~0.offset, 1);call write~init~int#2(0, ~#x~0.base, 75 + ~#x~0.offset, 1);call write~init~int#2(0, ~#x~0.base, 76 + ~#x~0.offset, 1);call write~init~int#2(0, ~#x~0.base, 77 + ~#x~0.offset, 1);call write~init~int#2(0, ~#x~0.base, 78 + ~#x~0.offset, 1);call write~init~int#2(0, ~#x~0.base, 79 + ~#x~0.offset, 1);call write~init~int#2(0, ~#x~0.base, 80 + ~#x~0.offset, 1);call write~init~int#2(0, ~#x~0.base, 81 + ~#x~0.offset, 1);call write~init~int#2(0, ~#x~0.base, 82 + ~#x~0.offset, 1);call write~init~int#2(0, ~#x~0.base, 83 + ~#x~0.offset, 1);call write~init~int#2(0, ~#x~0.base, 84 + ~#x~0.offset, 1);call write~init~int#2(0, ~#x~0.base, 85 + ~#x~0.offset, 1);call write~init~int#2(0, ~#x~0.base, 86 + ~#x~0.offset, 1);call write~init~int#2(0, ~#x~0.base, 87 + ~#x~0.offset, 1);call write~init~int#2(0, ~#x~0.base, 88 + ~#x~0.offset, 1);call write~init~int#2(0, ~#x~0.base, 89 + ~#x~0.offset, 1);call write~init~int#2(0, ~#x~0.base, 90 + ~#x~0.offset, 1);call write~init~int#2(0, ~#x~0.base, 91 + ~#x~0.offset, 1);call write~init~int#2(0, ~#x~0.base, 92 + ~#x~0.offset, 1);call write~init~int#2(0, ~#x~0.base, 93 + ~#x~0.offset, 1);call write~init~int#2(0, ~#x~0.base, 94 + ~#x~0.offset, 1);call write~init~int#2(0, ~#x~0.base, 95 + ~#x~0.offset, 1);call write~init~int#2(0, ~#x~0.base, 96 + ~#x~0.offset, 1);call write~init~int#2(0, ~#x~0.base, 97 + ~#x~0.offset, 1);call write~init~int#2(0, ~#x~0.base, 98 + ~#x~0.offset, 1);call write~init~int#2(0, ~#x~0.base, 99 + ~#x~0.offset, 1);call #Ultimate.allocInit(100, 5);~#y~0.base, ~#y~0.offset := 5, 0;call write~init~int#3(0, ~#y~0.base, ~#y~0.offset, 1);call write~init~int#3(0, ~#y~0.base, 1 + ~#y~0.offset, 1);call write~init~int#3(0, ~#y~0.base, 2 + ~#y~0.offset, 1);call write~init~int#3(0, ~#y~0.base, 3 + ~#y~0.offset, 1);call write~init~int#3(0, ~#y~0.base, 4 + ~#y~0.offset, 1);call write~init~int#3(0, ~#y~0.base, 5 + ~#y~0.offset, 1);call write~init~int#3(0, ~#y~0.base, 6 + ~#y~0.offset, 1);call write~init~int#3(0, ~#y~0.base, 7 + ~#y~0.offset, 1);call write~init~int#3(0, ~#y~0.base, 8 + ~#y~0.offset, 1);call write~init~int#3(0, ~#y~0.base, 9 + ~#y~0.offset, 1);call write~init~int#3(0, ~#y~0.base, 10 + ~#y~0.offset, 1);call write~init~int#3(0, ~#y~0.base, 11 + ~#y~0.offset, 1);call write~init~int#3(0, ~#y~0.base, 12 + ~#y~0.offset, 1);call write~init~int#3(0, ~#y~0.base, 13 + ~#y~0.offset, 1);call write~init~int#3(0, ~#y~0.base, 14 + ~#y~0.offset, 1);call write~init~int#3(0, ~#y~0.base, 15 + ~#y~0.offset, 1);call write~init~int#3(0, ~#y~0.base, 16 + ~#y~0.offset, 1);call write~init~int#3(0, ~#y~0.base, 17 + ~#y~0.offset, 1);call write~init~int#3(0, ~#y~0.base, 18 + ~#y~0.offset, 1);call write~init~int#3(0, ~#y~0.base, 19 + ~#y~0.offset, 1);call write~init~int#3(0, ~#y~0.base, 20 + ~#y~0.offset, 1);call write~init~int#3(0, ~#y~0.base, 21 + ~#y~0.offset, 1);call write~init~int#3(0, ~#y~0.base, 22 + ~#y~0.offset, 1);call write~init~int#3(0, ~#y~0.base, 23 + ~#y~0.offset, 1);call write~init~int#3(0, ~#y~0.base, 24 + ~#y~0.offset, 1);call write~init~int#3(0, ~#y~0.base, 25 + ~#y~0.offset, 1);call write~init~int#3(0, ~#y~0.base, 26 + ~#y~0.offset, 1);call write~init~int#3(0, ~#y~0.base, 27 + ~#y~0.offset, 1);call write~init~int#3(0, ~#y~0.base, 28 + ~#y~0.offset, 1);call write~init~int#3(0, ~#y~0.base, 29 + ~#y~0.offset, 1);call write~init~int#3(0, ~#y~0.base, 30 + ~#y~0.offset, 1);call write~init~int#3(0, ~#y~0.base, 31 + ~#y~0.offset, 1);call write~init~int#3(0, ~#y~0.base, 32 + ~#y~0.offset, 1);call write~init~int#3(0, ~#y~0.base, 33 + ~#y~0.offset, 1);call write~init~int#3(0, ~#y~0.base, 34 + ~#y~0.offset, 1);call write~init~int#3(0, ~#y~0.base, 35 + ~#y~0.offset, 1);call write~init~int#3(0, ~#y~0.base, 36 + ~#y~0.offset, 1);call write~init~int#3(0, ~#y~0.base, 37 + ~#y~0.offset, 1);call write~init~int#3(0, ~#y~0.base, 38 + ~#y~0.offset, 1);call write~init~int#3(0, ~#y~0.base, 39 + ~#y~0.offset, 1);call write~init~int#3(0, ~#y~0.base, 40 + ~#y~0.offset, 1);call write~init~int#3(0, ~#y~0.base, 41 + ~#y~0.offset, 1);call write~init~int#3(0, ~#y~0.base, 42 + ~#y~0.offset, 1);call write~init~int#3(0, ~#y~0.base, 43 + ~#y~0.offset, 1);call write~init~int#3(0, ~#y~0.base, 44 + ~#y~0.offset, 1);call write~init~int#3(0, ~#y~0.base, 45 + ~#y~0.offset, 1);call write~init~int#3(0, ~#y~0.base, 46 + ~#y~0.offset, 1);call write~init~int#3(0, ~#y~0.base, 47 + ~#y~0.offset, 1);call write~init~int#3(0, ~#y~0.base, 48 + ~#y~0.offset, 1);call write~init~int#3(0, ~#y~0.base, 49 + ~#y~0.offset, 1);call write~init~int#3(0, ~#y~0.base, 50 + ~#y~0.offset, 1);call write~init~int#3(0, ~#y~0.base, 51 + ~#y~0.offset, 1);call write~init~int#3(0, ~#y~0.base, 52 + ~#y~0.offset, 1);call write~init~int#3(0, ~#y~0.base, 53 + ~#y~0.offset, 1);call write~init~int#3(0, ~#y~0.base, 54 + ~#y~0.offset, 1);call write~init~int#3(0, ~#y~0.base, 55 + ~#y~0.offset, 1);call write~init~int#3(0, ~#y~0.base, 56 + ~#y~0.offset, 1);call write~init~int#3(0, ~#y~0.base, 57 + ~#y~0.offset, 1);call write~init~int#3(0, ~#y~0.base, 58 + ~#y~0.offset, 1);call write~init~int#3(0, ~#y~0.base, 59 + ~#y~0.offset, 1);call write~init~int#3(0, ~#y~0.base, 60 + ~#y~0.offset, 1);call write~init~int#3(0, ~#y~0.base, 61 + ~#y~0.offset, 1);call write~init~int#3(0, ~#y~0.base, 62 + ~#y~0.offset, 1);call write~init~int#3(0, ~#y~0.base, 63 + ~#y~0.offset, 1);call write~init~int#3(0, ~#y~0.base, 64 + ~#y~0.offset, 1);call write~init~int#3(0, ~#y~0.base, 65 + ~#y~0.offset, 1);call write~init~int#3(0, ~#y~0.base, 66 + ~#y~0.offset, 1);call write~init~int#3(0, ~#y~0.base, 67 + ~#y~0.offset, 1);call write~init~int#3(0, ~#y~0.base, 68 + ~#y~0.offset, 1);call write~init~int#3(0, ~#y~0.base, 69 + ~#y~0.offset, 1);call write~init~int#3(0, ~#y~0.base, 70 + ~#y~0.offset, 1);call write~init~int#3(0, ~#y~0.base, 71 + ~#y~0.offset, 1);call write~init~int#3(0, ~#y~0.base, 72 + ~#y~0.offset, 1);call write~init~int#3(0, ~#y~0.base, 73 + ~#y~0.offset, 1);call write~init~int#3(0, ~#y~0.base, 74 + ~#y~0.offset, 1);call write~init~int#3(0, ~#y~0.base, 75 + ~#y~0.offset, 1);call write~init~int#3(0, ~#y~0.base, 76 + ~#y~0.offset, 1);call write~init~int#3(0, ~#y~0.base, 77 + ~#y~0.offset, 1);call write~init~int#3(0, ~#y~0.base, 78 + ~#y~0.offset, 1);call write~init~int#3(0, ~#y~0.base, 79 + ~#y~0.offset, 1);call write~init~int#3(0, ~#y~0.base, 80 + ~#y~0.offset, 1);call write~init~int#3(0, ~#y~0.base, 81 + ~#y~0.offset, 1);call write~init~int#3(0, ~#y~0.base, 82 + ~#y~0.offset, 1);call write~init~int#3(0, ~#y~0.base, 83 + ~#y~0.offset, 1);call write~init~int#3(0, ~#y~0.base, 84 + ~#y~0.offset, 1);call write~init~int#3(0, ~#y~0.base, 85 + ~#y~0.offset, 1);call write~init~int#3(0, ~#y~0.base, 86 + ~#y~0.offset, 1);call write~init~int#3(0, ~#y~0.base, 87 + ~#y~0.offset, 1);call write~init~int#3(0, ~#y~0.base, 88 + ~#y~0.offset, 1);call write~init~int#3(0, ~#y~0.base, 89 + ~#y~0.offset, 1);call write~init~int#3(0, ~#y~0.base, 90 + ~#y~0.offset, 1);call write~init~int#3(0, ~#y~0.base, 91 + ~#y~0.offset, 1);call write~init~int#3(0, ~#y~0.base, 92 + ~#y~0.offset, 1);call write~init~int#3(0, ~#y~0.base, 93 + ~#y~0.offset, 1);call write~init~int#3(0, ~#y~0.base, 94 + ~#y~0.offset, 1);call write~init~int#3(0, ~#y~0.base, 95 + ~#y~0.offset, 1);call write~init~int#3(0, ~#y~0.base, 96 + ~#y~0.offset, 1);call write~init~int#3(0, ~#y~0.base, 97 + ~#y~0.offset, 1);call write~init~int#3(0, ~#y~0.base, 98 + ~#y~0.offset, 1);call write~init~int#3(0, ~#y~0.base, 99 + ~#y~0.offset, 1);~i~0 := 0;~j~0 := 0;~k~0 := 0;" "assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet4#1, main_#t~mem5#1, main_#t~mem6#1, main_#t~post7#1, main_#t~mem8#1;havoc main_#t~nondet4#1;~k~0 := main_#t~nondet4#1;havoc main_#t~nondet4#1;~i~0 := 0;" [2024-11-28 02:50:26,497 INFO L749 eck$LassoCheckResult]: Loop: "call main_#t~mem5#1 := read~int#2(~#x~0.base, ~#x~0.offset + ~i~0, 1);" "assume 0 != main_#t~mem5#1;havoc main_#t~mem5#1;" "call main_#t~mem6#1 := read~int#2(~#x~0.base, ~#x~0.offset + ~i~0, 1);call write~int#3(main_#t~mem6#1, ~#y~0.base, ~#y~0.offset + ~i~0, 1);havoc main_#t~mem6#1;main_#t~post7#1 := ~i~0;~i~0 := 1 + main_#t~post7#1;havoc main_#t~post7#1;" [2024-11-28 02:50:26,504 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:50:26,504 INFO L85 PathProgramCache]: Analyzing trace with hash 963, now seen corresponding path program 1 times [2024-11-28 02:50:26,513 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL_NO_AM [2024-11-28 02:50:26,514 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [123412495] [2024-11-28 02:50:26,514 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:50:26,515 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 02:50:26,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-28 02:50:26,771 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-28 02:50:26,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-28 02:50:26,903 INFO L130 FreeRefinementEngine]: Strategy CAMEL_NO_AM found a feasible trace [2024-11-28 02:50:26,906 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:50:26,906 INFO L85 PathProgramCache]: Analyzing trace with hash 35849, now seen corresponding path program 1 times [2024-11-28 02:50:26,906 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL_NO_AM [2024-11-28 02:50:26,908 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [163078516] [2024-11-28 02:50:26,908 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:50:26,908 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 02:50:26,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-28 02:50:26,927 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-28 02:50:26,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-28 02:50:26,939 INFO L130 FreeRefinementEngine]: Strategy CAMEL_NO_AM found a feasible trace [2024-11-28 02:50:26,943 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:50:26,943 INFO L85 PathProgramCache]: Analyzing trace with hash 28694791, now seen corresponding path program 1 times [2024-11-28 02:50:26,944 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL_NO_AM [2024-11-28 02:50:26,944 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1012560385] [2024-11-28 02:50:26,944 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:50:26,944 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 02:50:27,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:50:27,571 INFO L136 FreeRefinementEngine]: Strategy CAMEL_NO_AM found an infeasible trace [2024-11-28 02:50:27,571 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1012560385] [2024-11-28 02:50:27,572 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1012560385] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 02:50:27,573 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [29316374] [2024-11-28 02:50:27,573 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:50:27,573 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 02:50:27,573 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_204c8458-0170-4a8d-a981-6434d7cd98ae/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 02:50:27,576 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_204c8458-0170-4a8d-a981-6434d7cd98ae/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 02:50:27,579 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_204c8458-0170-4a8d-a981-6434d7cd98ae/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-28 02:50:27,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:50:27,765 INFO L256 TraceCheckSpWp]: Trace formula consists of 482 conjuncts, 9 conjuncts are in the unsatisfiable core [2024-11-28 02:50:27,767 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 02:50:27,840 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 02:50:27,879 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [29316374] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-28 02:50:27,879 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-28 02:50:27,879 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 7 [2024-11-28 02:50:27,880 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1449293218] [2024-11-28 02:50:27,880 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-28 02:50:28,032 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL_NO_AM [2024-11-28 02:50:28,062 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-28 02:50:28,063 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2024-11-28 02:50:28,065 INFO L87 Difference]: Start difference. First operand has 16 states, 15 states have (on average 1.3333333333333333) internal successors, (20), 15 states have internal predecessors, (20), 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 8 states, 8 states have (on average 1.25) 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) [2024-11-28 02:50:28,130 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 02:50:28,131 INFO L93 Difference]: Finished difference Result 10 states and 9 transitions. [2024-11-28 02:50:28,132 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 10 states and 9 transitions. [2024-11-28 02:50:28,133 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2024-11-28 02:50:28,139 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 10 states to 0 states and 0 transitions. [2024-11-28 02:50:28,140 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2024-11-28 02:50:28,140 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2024-11-28 02:50:28,141 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2024-11-28 02:50:28,141 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2024-11-28 02:50:28,141 INFO L218 hiAutomatonCegarLoop]: Abstraction has 0 states and 0 transitions. [2024-11-28 02:50:28,141 INFO L240 hiAutomatonCegarLoop]: Abstraction has 0 states and 0 transitions. [2024-11-28 02:50:28,142 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-28 02:50:28,146 INFO L425 stractBuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2024-11-28 02:50:28,146 INFO L332 stractBuchiCegarLoop]: ======== Iteration 2 ============ [2024-11-28 02:50:28,146 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2024-11-28 02:50:28,147 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2024-11-28 02:50:28,147 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2024-11-28 02:50:28,155 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 28.11 02:50:28 BoogieIcfgContainer [2024-11-28 02:50:28,155 INFO L131 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2024-11-28 02:50:28,156 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-28 02:50:28,156 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-28 02:50:28,156 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-28 02:50:28,157 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 02:50:26" (3/4) ... [2024-11-28 02:50:28,159 INFO L149 WitnessPrinter]: No result that supports witness generation found [2024-11-28 02:50:28,160 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-28 02:50:28,161 INFO L158 Benchmark]: Toolchain (without parser) took 2807.23ms. Allocated memory is still 142.6MB. Free memory was 117.6MB in the beginning and 38.9MB in the end (delta: 78.7MB). Peak memory consumption was 74.8MB. Max. memory is 16.1GB. [2024-11-28 02:50:28,161 INFO L158 Benchmark]: CDTParser took 1.26ms. Allocated memory is still 117.4MB. Free memory is still 74.0MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-28 02:50:28,162 INFO L158 Benchmark]: CACSL2BoogieTranslator took 327.29ms. Allocated memory is still 142.6MB. Free memory was 117.4MB in the beginning and 104.7MB in the end (delta: 12.7MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-28 02:50:28,162 INFO L158 Benchmark]: Boogie Procedure Inliner took 68.17ms. Allocated memory is still 142.6MB. Free memory was 104.7MB in the beginning and 102.0MB in the end (delta: 2.7MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-28 02:50:28,163 INFO L158 Benchmark]: Boogie Preprocessor took 99.14ms. Allocated memory is still 142.6MB. Free memory was 102.0MB in the beginning and 99.0MB in the end (delta: 2.9MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-28 02:50:28,163 INFO L158 Benchmark]: RCFGBuilder took 534.40ms. Allocated memory is still 142.6MB. Free memory was 99.0MB in the beginning and 77.9MB in the end (delta: 21.1MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2024-11-28 02:50:28,163 INFO L158 Benchmark]: BuchiAutomizer took 1764.86ms. Allocated memory is still 142.6MB. Free memory was 77.7MB in the beginning and 38.9MB in the end (delta: 38.9MB). Peak memory consumption was 41.2MB. Max. memory is 16.1GB. [2024-11-28 02:50:28,164 INFO L158 Benchmark]: Witness Printer took 4.33ms. Allocated memory is still 142.6MB. Free memory was 38.9MB in the beginning and 38.9MB in the end (delta: 27.1kB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-28 02:50:28,166 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 1.26ms. Allocated memory is still 117.4MB. Free memory is still 74.0MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 327.29ms. Allocated memory is still 142.6MB. Free memory was 117.4MB in the beginning and 104.7MB in the end (delta: 12.7MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 68.17ms. Allocated memory is still 142.6MB. Free memory was 104.7MB in the beginning and 102.0MB in the end (delta: 2.7MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Preprocessor took 99.14ms. Allocated memory is still 142.6MB. Free memory was 102.0MB in the beginning and 99.0MB in the end (delta: 2.9MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 534.40ms. Allocated memory is still 142.6MB. Free memory was 99.0MB in the beginning and 77.9MB in the end (delta: 21.1MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * BuchiAutomizer took 1764.86ms. Allocated memory is still 142.6MB. Free memory was 77.7MB in the beginning and 38.9MB in the end (delta: 38.9MB). Peak memory consumption was 41.2MB. Max. memory is 16.1GB. * Witness Printer took 4.33ms. Allocated memory is still 142.6MB. Free memory was 38.9MB in the beginning and 38.9MB in the end (delta: 27.1kB). 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 8 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 1.7s and 2 iterations. TraceHistogramMax:1. Analysis of lassos took 1.5s. 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, 15 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 15 mSDsluCounter, 8 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 3 mSDsCounter, 3 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 9 IncrementalHoareTripleChecker+Invalid, 12 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 3 mSolverCounterUnsat, 5 mSDtfsCounter, 9 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown LassoAnalysisResults: nont0 unkn0 SFLI0 SFLT0 conc1 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! [2024-11-28 02:50:28,186 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_204c8458-0170-4a8d-a981-6434d7cd98ae/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-28 02:50:28,393 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_204c8458-0170-4a8d-a981-6434d7cd98ae/bin/uautomizer-verify-aQ6SnzHsRB/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