./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/termination-bwb/and-03-false.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version e04fb08f 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_71e4d500-7a4a-47b3-a417-a2f94ae29330/bin/uautomizer-tPACEb0tL8/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71e4d500-7a4a-47b3-a417-a2f94ae29330/bin/uautomizer-tPACEb0tL8/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71e4d500-7a4a-47b3-a417-a2f94ae29330/bin/uautomizer-tPACEb0tL8/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71e4d500-7a4a-47b3-a417-a2f94ae29330/bin/uautomizer-tPACEb0tL8/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/termination-bwb/and-03-false.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71e4d500-7a4a-47b3-a417-a2f94ae29330/bin/uautomizer-tPACEb0tL8/config/svcomp-Termination-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71e4d500-7a4a-47b3-a417-a2f94ae29330/bin/uautomizer-tPACEb0tL8 --witnessprinter.witness.filename witness.graphml --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 cfd67d5631b4948a1522f37c4b686fa068a561ee1d767737058a32ed6cf067a0 --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-e04fb08 [2022-11-16 11:58:16,686 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-16 11:58:16,688 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-16 11:58:16,715 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-16 11:58:16,721 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-16 11:58:16,725 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-16 11:58:16,726 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-16 11:58:16,729 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-16 11:58:16,733 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-16 11:58:16,735 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-16 11:58:16,737 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-16 11:58:16,740 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-16 11:58:16,741 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-16 11:58:16,746 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-16 11:58:16,748 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-16 11:58:16,749 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-16 11:58:16,751 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-16 11:58:16,756 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-16 11:58:16,758 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-16 11:58:16,761 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-16 11:58:16,765 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-16 11:58:16,766 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-16 11:58:16,769 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-16 11:58:16,770 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-16 11:58:16,776 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-16 11:58:16,781 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-16 11:58:16,781 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-16 11:58:16,782 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-16 11:58:16,784 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-16 11:58:16,785 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-16 11:58:16,786 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-16 11:58:16,787 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-16 11:58:16,789 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-16 11:58:16,790 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-16 11:58:16,792 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-16 11:58:16,793 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-16 11:58:16,793 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-16 11:58:16,794 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-16 11:58:16,794 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-16 11:58:16,795 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-16 11:58:16,796 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-16 11:58:16,797 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71e4d500-7a4a-47b3-a417-a2f94ae29330/bin/uautomizer-tPACEb0tL8/config/svcomp-Termination-64bit-Automizer_Default.epf [2022-11-16 11:58:16,839 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-16 11:58:16,839 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-16 11:58:16,840 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-16 11:58:16,840 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-16 11:58:16,842 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-16 11:58:16,842 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-16 11:58:16,842 INFO L138 SettingsManager]: * Use SBE=true [2022-11-16 11:58:16,843 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2022-11-16 11:58:16,843 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2022-11-16 11:58:16,843 INFO L138 SettingsManager]: * Use old map elimination=false [2022-11-16 11:58:16,844 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2022-11-16 11:58:16,845 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2022-11-16 11:58:16,845 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2022-11-16 11:58:16,845 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-16 11:58:16,845 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-16 11:58:16,846 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-16 11:58:16,846 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-16 11:58:16,846 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2022-11-16 11:58:16,846 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2022-11-16 11:58:16,847 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2022-11-16 11:58:16,847 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-16 11:58:16,847 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2022-11-16 11:58:16,848 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-16 11:58:16,849 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2022-11-16 11:58:16,849 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-16 11:58:16,850 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-16 11:58:16,850 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-16 11:58:16,850 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-16 11:58:16,851 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2022-11-16 11:58:16,852 INFO L138 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_71e4d500-7a4a-47b3-a417-a2f94ae29330/bin/uautomizer-tPACEb0tL8/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71e4d500-7a4a-47b3-a417-a2f94ae29330/bin/uautomizer-tPACEb0tL8 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> cfd67d5631b4948a1522f37c4b686fa068a561ee1d767737058a32ed6cf067a0 [2022-11-16 11:58:17,180 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-16 11:58:17,218 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-16 11:58:17,220 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-16 11:58:17,222 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-16 11:58:17,223 INFO L275 PluginConnector]: CDTParser initialized [2022-11-16 11:58:17,224 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71e4d500-7a4a-47b3-a417-a2f94ae29330/bin/uautomizer-tPACEb0tL8/../../sv-benchmarks/c/termination-bwb/and-03-false.c [2022-11-16 11:58:17,301 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71e4d500-7a4a-47b3-a417-a2f94ae29330/bin/uautomizer-tPACEb0tL8/data/570824099/082d558ebc0a4fd2a92412d5f6cca39a/FLAG8bdcf35fc [2022-11-16 11:58:17,799 INFO L306 CDTParser]: Found 1 translation units. [2022-11-16 11:58:17,800 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71e4d500-7a4a-47b3-a417-a2f94ae29330/sv-benchmarks/c/termination-bwb/and-03-false.c [2022-11-16 11:58:17,805 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71e4d500-7a4a-47b3-a417-a2f94ae29330/bin/uautomizer-tPACEb0tL8/data/570824099/082d558ebc0a4fd2a92412d5f6cca39a/FLAG8bdcf35fc [2022-11-16 11:58:18,186 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71e4d500-7a4a-47b3-a417-a2f94ae29330/bin/uautomizer-tPACEb0tL8/data/570824099/082d558ebc0a4fd2a92412d5f6cca39a [2022-11-16 11:58:18,189 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-16 11:58:18,192 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-16 11:58:18,195 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-16 11:58:18,196 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-16 11:58:18,199 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-16 11:58:18,200 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 11:58:18" (1/1) ... [2022-11-16 11:58:18,201 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1be3f8a8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:58:18, skipping insertion in model container [2022-11-16 11:58:18,202 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 11:58:18" (1/1) ... [2022-11-16 11:58:18,209 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-16 11:58:18,221 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-16 11:58:18,368 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-16 11:58:18,380 INFO L203 MainTranslator]: Completed pre-run [2022-11-16 11:58:18,393 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-16 11:58:18,405 INFO L208 MainTranslator]: Completed translation [2022-11-16 11:58:18,406 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:58:18 WrapperNode [2022-11-16 11:58:18,406 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-16 11:58:18,407 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-16 11:58:18,407 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-16 11:58:18,407 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-16 11:58:18,416 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:58:18" (1/1) ... [2022-11-16 11:58:18,420 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:58:18" (1/1) ... [2022-11-16 11:58:18,434 INFO L138 Inliner]: procedures = 4, calls = 2, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 23 [2022-11-16 11:58:18,434 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-16 11:58:18,435 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-16 11:58:18,435 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-16 11:58:18,436 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-16 11:58:18,444 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:58:18" (1/1) ... [2022-11-16 11:58:18,445 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:58:18" (1/1) ... [2022-11-16 11:58:18,445 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:58:18" (1/1) ... [2022-11-16 11:58:18,446 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:58:18" (1/1) ... [2022-11-16 11:58:18,448 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:58:18" (1/1) ... [2022-11-16 11:58:18,452 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:58:18" (1/1) ... [2022-11-16 11:58:18,453 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:58:18" (1/1) ... [2022-11-16 11:58:18,453 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:58:18" (1/1) ... [2022-11-16 11:58:18,455 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-16 11:58:18,456 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-16 11:58:18,456 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-16 11:58:18,456 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-16 11:58:18,461 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:58:18" (1/1) ... [2022-11-16 11:58:18,468 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-16 11:58:18,480 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71e4d500-7a4a-47b3-a417-a2f94ae29330/bin/uautomizer-tPACEb0tL8/z3 [2022-11-16 11:58:18,492 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71e4d500-7a4a-47b3-a417-a2f94ae29330/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-16 11:58:18,494 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71e4d500-7a4a-47b3-a417-a2f94ae29330/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2022-11-16 11:58:18,539 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-16 11:58:18,539 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-16 11:58:18,597 INFO L235 CfgBuilder]: Building ICFG [2022-11-16 11:58:18,600 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-16 11:58:18,745 INFO L276 CfgBuilder]: Performing block encoding [2022-11-16 11:58:18,753 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-16 11:58:18,753 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2022-11-16 11:58:18,756 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.11 11:58:18 BoogieIcfgContainer [2022-11-16 11:58:18,756 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-16 11:58:18,757 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2022-11-16 11:58:18,757 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2022-11-16 11:58:18,762 INFO L275 PluginConnector]: BuchiAutomizer initialized [2022-11-16 11:58:18,763 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-11-16 11:58:18,763 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 16.11 11:58:18" (1/3) ... [2022-11-16 11:58:18,764 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@64840d96 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 16.11 11:58:18, skipping insertion in model container [2022-11-16 11:58:18,764 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-11-16 11:58:18,764 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:58:18" (2/3) ... [2022-11-16 11:58:18,765 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@64840d96 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 16.11 11:58:18, skipping insertion in model container [2022-11-16 11:58:18,765 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-11-16 11:58:18,765 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.11 11:58:18" (3/3) ... [2022-11-16 11:58:18,767 INFO L332 chiAutomizerObserver]: Analyzing ICFG and-03-false.c [2022-11-16 11:58:18,843 INFO L303 stractBuchiCegarLoop]: Interprodecural is true [2022-11-16 11:58:18,844 INFO L304 stractBuchiCegarLoop]: Hoare is false [2022-11-16 11:58:18,844 INFO L305 stractBuchiCegarLoop]: Compute interpolants for ForwardPredicates [2022-11-16 11:58:18,844 INFO L306 stractBuchiCegarLoop]: Backedges is STRAIGHT_LINE [2022-11-16 11:58:18,844 INFO L307 stractBuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2022-11-16 11:58:18,844 INFO L308 stractBuchiCegarLoop]: Difference is false [2022-11-16 11:58:18,845 INFO L309 stractBuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2022-11-16 11:58:18,845 INFO L313 stractBuchiCegarLoop]: ======== Iteration 0 == of CEGAR loop == BuchiAutomatonCegarLoop ======== [2022-11-16 11:58:18,849 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 10 states, 9 states have (on average 1.5555555555555556) internal successors, (14), 9 states have internal predecessors, (14), 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) [2022-11-16 11:58:18,884 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2022-11-16 11:58:18,885 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-11-16 11:58:18,885 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-11-16 11:58:18,893 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1] [2022-11-16 11:58:18,893 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1] [2022-11-16 11:58:18,894 INFO L335 stractBuchiCegarLoop]: ======== Iteration 1 ============ [2022-11-16 11:58:18,894 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 10 states, 9 states have (on average 1.5555555555555556) internal successors, (14), 9 states have internal predecessors, (14), 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) [2022-11-16 11:58:18,896 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2022-11-16 11:58:18,896 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-11-16 11:58:18,897 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-11-16 11:58:18,897 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1] [2022-11-16 11:58:18,897 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1] [2022-11-16 11:58:18,905 INFO L748 eck$LassoCheckResult]: Stem: 7#ULTIMATE.startENTRYtrue assume { :begin_inline_ULTIMATE.init } true; 9#L-1true assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet0#1, main_#t~post1#1, main_~x~0#1;havoc main_~x~0#1;main_~x~0#1 := main_#t~nondet0#1;havoc main_#t~nondet0#1; 4#L16-1true [2022-11-16 11:58:18,905 INFO L750 eck$LassoCheckResult]: Loop: 4#L16-1true assume !!(0 == main_~x~0#1); 2#L16true assume !(main_~x~0#1 >= 0);main_#t~post1#1 := main_~x~0#1;main_~x~0#1 := 1 + main_#t~post1#1;havoc main_#t~post1#1; 4#L16-1true [2022-11-16 11:58:18,912 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:58:18,912 INFO L85 PathProgramCache]: Analyzing trace with hash 963, now seen corresponding path program 1 times [2022-11-16 11:58:18,922 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:58:18,923 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [509733204] [2022-11-16 11:58:18,924 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:58:18,925 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:58:19,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-16 11:58:19,001 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-16 11:58:19,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-16 11:58:19,027 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-16 11:58:19,030 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:58:19,030 INFO L85 PathProgramCache]: Analyzing trace with hash 1329, now seen corresponding path program 1 times [2022-11-16 11:58:19,031 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:58:19,032 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1616172477] [2022-11-16 11:58:19,032 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:58:19,032 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:58:19,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:58:19,151 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:58:19,151 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:58:19,152 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1616172477] [2022-11-16 11:58:19,153 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1616172477] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:58:19,153 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:58:19,153 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-11-16 11:58:19,154 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [818576880] [2022-11-16 11:58:19,154 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:58:19,159 INFO L765 eck$LassoCheckResult]: loop already infeasible [2022-11-16 11:58:19,161 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:58:19,200 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-16 11:58:19,201 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-16 11:58:19,203 INFO L87 Difference]: Start difference. First operand has 10 states, 9 states have (on average 1.5555555555555556) internal successors, (14), 9 states have internal predecessors, (14), 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 3 states, 2 states have (on average 1.0) internal successors, (2), 2 states have internal predecessors, (2), 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) [2022-11-16 11:58:19,246 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 11:58:19,249 INFO L93 Difference]: Finished difference Result 15 states and 16 transitions. [2022-11-16 11:58:19,250 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 15 states and 16 transitions. [2022-11-16 11:58:19,252 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 5 [2022-11-16 11:58:19,271 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 15 states to 7 states and 8 transitions. [2022-11-16 11:58:19,272 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 7 [2022-11-16 11:58:19,273 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 7 [2022-11-16 11:58:19,273 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 8 transitions. [2022-11-16 11:58:19,274 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 11:58:19,274 INFO L218 hiAutomatonCegarLoop]: Abstraction has 7 states and 8 transitions. [2022-11-16 11:58:19,300 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7 states and 8 transitions. [2022-11-16 11:58:19,307 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7 to 6. [2022-11-16 11:58:19,308 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6 states, 6 states have (on average 1.1666666666666667) internal successors, (7), 5 states have internal predecessors, (7), 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) [2022-11-16 11:58:19,308 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 7 transitions. [2022-11-16 11:58:19,309 INFO L240 hiAutomatonCegarLoop]: Abstraction has 6 states and 7 transitions. [2022-11-16 11:58:19,323 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-16 11:58:19,327 INFO L428 stractBuchiCegarLoop]: Abstraction has 6 states and 7 transitions. [2022-11-16 11:58:19,340 INFO L335 stractBuchiCegarLoop]: ======== Iteration 2 ============ [2022-11-16 11:58:19,340 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 6 states and 7 transitions. [2022-11-16 11:58:19,341 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2022-11-16 11:58:19,341 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-11-16 11:58:19,341 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-11-16 11:58:19,342 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1] [2022-11-16 11:58:19,342 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1] [2022-11-16 11:58:19,342 INFO L748 eck$LassoCheckResult]: Stem: 38#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true; 39#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet0#1, main_#t~post1#1, main_~x~0#1;havoc main_~x~0#1;main_~x~0#1 := main_#t~nondet0#1;havoc main_#t~nondet0#1; 36#L16-1 [2022-11-16 11:58:19,342 INFO L750 eck$LassoCheckResult]: Loop: 36#L16-1 assume !!(0 == main_~x~0#1); 34#L16 assume main_~x~0#1 >= 0; 35#L17 assume 0 == main_~x~0#1 || 0 == main_~x~0#1 - 1;main_~x~0#1 := 0; 36#L16-1 [2022-11-16 11:58:19,343 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:58:19,343 INFO L85 PathProgramCache]: Analyzing trace with hash 963, now seen corresponding path program 2 times [2022-11-16 11:58:19,343 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:58:19,344 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1428009853] [2022-11-16 11:58:19,344 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:58:19,344 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:58:19,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-16 11:58:19,347 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-16 11:58:19,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-16 11:58:19,349 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-16 11:58:19,350 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:58:19,350 INFO L85 PathProgramCache]: Analyzing trace with hash 40813, now seen corresponding path program 1 times [2022-11-16 11:58:19,350 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:58:19,351 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [512973996] [2022-11-16 11:58:19,351 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:58:19,351 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:58:19,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-16 11:58:19,364 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-16 11:58:19,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-16 11:58:19,369 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-16 11:58:19,369 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:58:19,369 INFO L85 PathProgramCache]: Analyzing trace with hash 28699755, now seen corresponding path program 1 times [2022-11-16 11:58:19,370 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:58:19,370 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [708204489] [2022-11-16 11:58:19,370 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:58:19,370 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:58:19,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-16 11:58:19,375 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-16 11:58:19,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-16 11:58:19,388 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-16 11:58:19,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-16 11:58:19,477 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-16 11:58:19,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-16 11:58:19,501 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 16.11 11:58:19 BoogieIcfgContainer [2022-11-16 11:58:19,501 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2022-11-16 11:58:19,502 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-16 11:58:19,502 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-16 11:58:19,502 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-16 11:58:19,503 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.11 11:58:18" (3/4) ... [2022-11-16 11:58:19,505 INFO L134 WitnessPrinter]: Generating witness for non-termination counterexample [2022-11-16 11:58:19,537 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71e4d500-7a4a-47b3-a417-a2f94ae29330/bin/uautomizer-tPACEb0tL8/witness.graphml [2022-11-16 11:58:19,537 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-16 11:58:19,538 INFO L158 Benchmark]: Toolchain (without parser) took 1345.95ms. Allocated memory is still 146.8MB. Free memory was 112.9MB in the beginning and 85.8MB in the end (delta: 27.2MB). Peak memory consumption was 24.2MB. Max. memory is 16.1GB. [2022-11-16 11:58:19,538 INFO L158 Benchmark]: CDTParser took 0.23ms. Allocated memory is still 88.1MB. Free memory was 60.7MB in the beginning and 60.7MB in the end (delta: 24.5kB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-16 11:58:19,539 INFO L158 Benchmark]: CACSL2BoogieTranslator took 211.05ms. Allocated memory is still 146.8MB. Free memory was 112.9MB in the beginning and 124.5MB in the end (delta: -11.6MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2022-11-16 11:58:19,540 INFO L158 Benchmark]: Boogie Procedure Inliner took 27.69ms. Allocated memory is still 146.8MB. Free memory was 124.5MB in the beginning and 123.3MB in the end (delta: 1.2MB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-16 11:58:19,540 INFO L158 Benchmark]: Boogie Preprocessor took 19.63ms. Allocated memory is still 146.8MB. Free memory was 123.3MB in the beginning and 122.4MB in the end (delta: 930.6kB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-16 11:58:19,541 INFO L158 Benchmark]: RCFGBuilder took 300.50ms. Allocated memory is still 146.8MB. Free memory was 122.4MB in the beginning and 113.5MB in the end (delta: 8.8MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2022-11-16 11:58:19,542 INFO L158 Benchmark]: BuchiAutomizer took 744.06ms. Allocated memory is still 146.8MB. Free memory was 113.1MB in the beginning and 87.2MB in the end (delta: 25.9MB). Peak memory consumption was 27.3MB. Max. memory is 16.1GB. [2022-11-16 11:58:19,542 INFO L158 Benchmark]: Witness Printer took 35.29ms. Allocated memory is still 146.8MB. Free memory was 87.2MB in the beginning and 85.8MB in the end (delta: 1.4MB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-16 11:58:19,546 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.23ms. Allocated memory is still 88.1MB. Free memory was 60.7MB in the beginning and 60.7MB in the end (delta: 24.5kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 211.05ms. Allocated memory is still 146.8MB. Free memory was 112.9MB in the beginning and 124.5MB in the end (delta: -11.6MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 27.69ms. Allocated memory is still 146.8MB. Free memory was 124.5MB in the beginning and 123.3MB in the end (delta: 1.2MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 19.63ms. Allocated memory is still 146.8MB. Free memory was 123.3MB in the beginning and 122.4MB in the end (delta: 930.6kB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 300.50ms. Allocated memory is still 146.8MB. Free memory was 122.4MB in the beginning and 113.5MB in the end (delta: 8.8MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * BuchiAutomizer took 744.06ms. Allocated memory is still 146.8MB. Free memory was 113.1MB in the beginning and 87.2MB in the end (delta: 25.9MB). Peak memory consumption was 27.3MB. Max. memory is 16.1GB. * Witness Printer took 35.29ms. Allocated memory is still 146.8MB. Free memory was 87.2MB in the beginning and 85.8MB in the end (delta: 1.4MB). 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) and one nonterminating remainder module.1 modules have a trivial ranking function, the largest among these consists of 3 locations. The remainder module has 6 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 0.6s and 2 iterations. TraceHistogramMax:1. Analysis of lassos took 0.4s. Construction of modules took 0.0s. Büchi inclusion checks took 0.1s. Highest rank in rank-based complementation 0. Minimization of det autom 1. Minimization of nondet autom 0. Automata minimization 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 1 StatesRemovedByMinimization, 1 NontrivialMinimizations. 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, 6 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 6 mSDsluCounter, 15 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 4 mSDsCounter, 1 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 8 IncrementalHoareTripleChecker+Invalid, 9 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 1 mSolverCounterUnsat, 11 mSDtfsCounter, 8 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown LassoAnalysisResults: nont1 unkn0 SFLI1 SFLT0 conc0 concLT0 SILN0 SILU0 SILI0 SILT0 lasso0 LassoPreprocessingBenchmarks: LassoTerminationAnalysisBenchmarks: not availableLassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 0 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 0 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.0s InitialAbstractionConstructionTime: 0.0s - TerminationAnalysisResult: Nontermination possible Buchi Automizer proved that your program is nonterminating for some inputs - LassoShapedNonTerminationArgument [Line: 14]: Nontermination argument in form of an infinite program execution. Nontermination argument in form of an infinite program execution. Stem: [L12] int x; [L13] x = __VERIFIER_nondet_int() Loop: [L14] COND TRUE x==0 [L16] COND TRUE x >= 0 [L17] x = x&(x-1) End of lasso representation. - StatisticsResult: NonterminationArgumentStatistics Fixpoint - NonterminatingLassoResult [Line: 14]: Nonterminating execution Found a nonterminating execution for the following lasso shaped sequence of statements. Stem: [L12] int x; [L13] x = __VERIFIER_nondet_int() Loop: [L14] COND TRUE x==0 [L16] COND TRUE x >= 0 [L17] x = x&(x-1) End of lasso representation. RESULT: Ultimate proved your program to be incorrect! [2022-11-16 11:58:19,573 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71e4d500-7a4a-47b3-a417-a2f94ae29330/bin/uautomizer-tPACEb0tL8/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 Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE(TERM)