./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 38b53e6a 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_ccaba61d-ee7e-4563-b08c-4ea08728310a/bin/uautomizer-ZsLfNo2U6R/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ccaba61d-ee7e-4563-b08c-4ea08728310a/bin/uautomizer-ZsLfNo2U6R/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ccaba61d-ee7e-4563-b08c-4ea08728310a/bin/uautomizer-ZsLfNo2U6R/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ccaba61d-ee7e-4563-b08c-4ea08728310a/bin/uautomizer-ZsLfNo2U6R/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/termination-bwb/and-03-false.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ccaba61d-ee7e-4563-b08c-4ea08728310a/bin/uautomizer-ZsLfNo2U6R/config/svcomp-Termination-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ccaba61d-ee7e-4563-b08c-4ea08728310a/bin/uautomizer-ZsLfNo2U6R --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-38b53e6 [2022-11-25 17:28:56,216 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-25 17:28:56,219 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-25 17:28:56,250 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-25 17:28:56,251 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-25 17:28:56,253 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-25 17:28:56,256 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-25 17:28:56,262 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-25 17:28:56,266 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-25 17:28:56,268 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-25 17:28:56,269 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-25 17:28:56,272 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-25 17:28:56,274 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-25 17:28:56,277 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-25 17:28:56,279 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-25 17:28:56,283 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-25 17:28:56,284 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-25 17:28:56,290 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-25 17:28:56,292 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-25 17:28:56,295 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-25 17:28:56,300 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-25 17:28:56,302 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-25 17:28:56,304 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-25 17:28:56,305 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-25 17:28:56,308 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-25 17:28:56,309 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-25 17:28:56,309 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-25 17:28:56,316 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-25 17:28:56,316 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-25 17:28:56,320 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-25 17:28:56,320 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-25 17:28:56,321 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-25 17:28:56,324 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-25 17:28:56,325 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-25 17:28:56,327 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-25 17:28:56,327 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-25 17:28:56,328 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-25 17:28:56,328 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-25 17:28:56,328 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-25 17:28:56,330 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-25 17:28:56,331 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-25 17:28:56,332 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ccaba61d-ee7e-4563-b08c-4ea08728310a/bin/uautomizer-ZsLfNo2U6R/config/svcomp-Termination-64bit-Automizer_Default.epf [2022-11-25 17:28:56,379 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-25 17:28:56,379 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-25 17:28:56,379 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-25 17:28:56,379 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-25 17:28:56,380 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-25 17:28:56,381 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-25 17:28:56,381 INFO L138 SettingsManager]: * Use SBE=true [2022-11-25 17:28:56,381 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2022-11-25 17:28:56,381 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2022-11-25 17:28:56,381 INFO L138 SettingsManager]: * Use old map elimination=false [2022-11-25 17:28:56,381 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2022-11-25 17:28:56,382 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2022-11-25 17:28:56,382 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2022-11-25 17:28:56,382 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-25 17:28:56,382 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-25 17:28:56,383 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-25 17:28:56,383 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-25 17:28:56,383 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2022-11-25 17:28:56,383 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2022-11-25 17:28:56,383 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2022-11-25 17:28:56,383 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-25 17:28:56,383 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2022-11-25 17:28:56,384 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-25 17:28:56,384 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2022-11-25 17:28:56,384 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-25 17:28:56,384 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-25 17:28:56,385 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-25 17:28:56,385 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-25 17:28:56,386 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2022-11-25 17:28:56,386 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_ccaba61d-ee7e-4563-b08c-4ea08728310a/bin/uautomizer-ZsLfNo2U6R/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ccaba61d-ee7e-4563-b08c-4ea08728310a/bin/uautomizer-ZsLfNo2U6R Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> cfd67d5631b4948a1522f37c4b686fa068a561ee1d767737058a32ed6cf067a0 [2022-11-25 17:28:56,721 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-25 17:28:56,756 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-25 17:28:56,759 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-25 17:28:56,761 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-25 17:28:56,762 INFO L275 PluginConnector]: CDTParser initialized [2022-11-25 17:28:56,763 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ccaba61d-ee7e-4563-b08c-4ea08728310a/bin/uautomizer-ZsLfNo2U6R/../../sv-benchmarks/c/termination-bwb/and-03-false.c [2022-11-25 17:28:59,854 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-25 17:29:00,078 INFO L351 CDTParser]: Found 1 translation units. [2022-11-25 17:29:00,079 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ccaba61d-ee7e-4563-b08c-4ea08728310a/sv-benchmarks/c/termination-bwb/and-03-false.c [2022-11-25 17:29:00,086 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ccaba61d-ee7e-4563-b08c-4ea08728310a/bin/uautomizer-ZsLfNo2U6R/data/7430b6ca1/45cb7e3fd27d4dfbb245387c25343512/FLAGbb397ffdf [2022-11-25 17:29:00,106 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ccaba61d-ee7e-4563-b08c-4ea08728310a/bin/uautomizer-ZsLfNo2U6R/data/7430b6ca1/45cb7e3fd27d4dfbb245387c25343512 [2022-11-25 17:29:00,109 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-25 17:29:00,111 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-25 17:29:00,113 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-25 17:29:00,113 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-25 17:29:00,122 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-25 17:29:00,124 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 05:29:00" (1/1) ... [2022-11-25 17:29:00,125 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@9b4b4a5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:29:00, skipping insertion in model container [2022-11-25 17:29:00,125 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 05:29:00" (1/1) ... [2022-11-25 17:29:00,135 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-25 17:29:00,151 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-25 17:29:00,422 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-25 17:29:00,428 INFO L203 MainTranslator]: Completed pre-run [2022-11-25 17:29:00,448 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-25 17:29:00,464 INFO L208 MainTranslator]: Completed translation [2022-11-25 17:29:00,465 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:29:00 WrapperNode [2022-11-25 17:29:00,466 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-25 17:29:00,467 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-25 17:29:00,467 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-25 17:29:00,468 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-25 17:29:00,476 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:29:00" (1/1) ... [2022-11-25 17:29:00,484 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:29:00" (1/1) ... [2022-11-25 17:29:00,504 INFO L138 Inliner]: procedures = 4, calls = 2, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 25 [2022-11-25 17:29:00,505 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-25 17:29:00,506 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-25 17:29:00,506 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-25 17:29:00,506 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-25 17:29:00,516 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:29:00" (1/1) ... [2022-11-25 17:29:00,517 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:29:00" (1/1) ... [2022-11-25 17:29:00,518 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:29:00" (1/1) ... [2022-11-25 17:29:00,518 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:29:00" (1/1) ... [2022-11-25 17:29:00,525 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:29:00" (1/1) ... [2022-11-25 17:29:00,532 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:29:00" (1/1) ... [2022-11-25 17:29:00,533 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:29:00" (1/1) ... [2022-11-25 17:29:00,533 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:29:00" (1/1) ... [2022-11-25 17:29:00,536 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-25 17:29:00,538 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-25 17:29:00,538 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-25 17:29:00,538 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-25 17:29:00,539 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:29:00" (1/1) ... [2022-11-25 17:29:00,547 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-25 17:29:00,559 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ccaba61d-ee7e-4563-b08c-4ea08728310a/bin/uautomizer-ZsLfNo2U6R/z3 [2022-11-25 17:29:00,580 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ccaba61d-ee7e-4563-b08c-4ea08728310a/bin/uautomizer-ZsLfNo2U6R/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-25 17:29:00,604 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ccaba61d-ee7e-4563-b08c-4ea08728310a/bin/uautomizer-ZsLfNo2U6R/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2022-11-25 17:29:00,632 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-25 17:29:00,633 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-25 17:29:00,698 INFO L235 CfgBuilder]: Building ICFG [2022-11-25 17:29:00,701 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-25 17:29:00,841 INFO L276 CfgBuilder]: Performing block encoding [2022-11-25 17:29:00,848 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-25 17:29:00,849 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2022-11-25 17:29:00,851 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 05:29:00 BoogieIcfgContainer [2022-11-25 17:29:00,851 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-25 17:29:00,852 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2022-11-25 17:29:00,852 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2022-11-25 17:29:00,857 INFO L275 PluginConnector]: BuchiAutomizer initialized [2022-11-25 17:29:00,858 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-11-25 17:29:00,858 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 25.11 05:29:00" (1/3) ... [2022-11-25 17:29:00,859 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@acf09bb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 25.11 05:29:00, skipping insertion in model container [2022-11-25 17:29:00,860 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-11-25 17:29:00,860 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:29:00" (2/3) ... [2022-11-25 17:29:00,860 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@acf09bb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 25.11 05:29:00, skipping insertion in model container [2022-11-25 17:29:00,860 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-11-25 17:29:00,861 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 05:29:00" (3/3) ... [2022-11-25 17:29:00,862 INFO L332 chiAutomizerObserver]: Analyzing ICFG and-03-false.c [2022-11-25 17:29:00,931 INFO L303 stractBuchiCegarLoop]: Interprodecural is true [2022-11-25 17:29:00,931 INFO L304 stractBuchiCegarLoop]: Hoare is false [2022-11-25 17:29:00,932 INFO L305 stractBuchiCegarLoop]: Compute interpolants for ForwardPredicates [2022-11-25 17:29:00,932 INFO L306 stractBuchiCegarLoop]: Backedges is STRAIGHT_LINE [2022-11-25 17:29:00,932 INFO L307 stractBuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2022-11-25 17:29:00,932 INFO L308 stractBuchiCegarLoop]: Difference is false [2022-11-25 17:29:00,932 INFO L309 stractBuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2022-11-25 17:29:00,933 INFO L313 stractBuchiCegarLoop]: ======== Iteration 0 == of CEGAR loop == BuchiAutomatonCegarLoop ======== [2022-11-25 17:29:00,938 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 11 states, 10 states have (on average 1.5) internal successors, (15), 10 states have internal predecessors, (15), 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) [2022-11-25 17:29:00,954 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 5 [2022-11-25 17:29:00,955 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-11-25 17:29:00,955 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-11-25 17:29:00,961 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1] [2022-11-25 17:29:00,961 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1] [2022-11-25 17:29:00,961 INFO L335 stractBuchiCegarLoop]: ======== Iteration 1 ============ [2022-11-25 17:29:00,962 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 11 states, 10 states have (on average 1.5) internal successors, (15), 10 states have internal predecessors, (15), 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) [2022-11-25 17:29:00,963 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 5 [2022-11-25 17:29:00,963 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-11-25 17:29:00,964 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-11-25 17:29:00,964 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1] [2022-11-25 17:29:00,964 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1] [2022-11-25 17:29:00,972 INFO L748 eck$LassoCheckResult]: Stem: 6#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~nondet1#1, main_#t~post2#1, main_~x~0#1;havoc main_~x~0#1;main_~x~0#1 := main_#t~nondet0#1;havoc main_#t~nondet0#1; 7#L16-2true [2022-11-25 17:29:00,974 INFO L750 eck$LassoCheckResult]: Loop: 7#L16-2true assume !!(0 == main_~x~0#1); 2#L16true assume !(main_~x~0#1 >= 0);main_#t~post2#1 := main_~x~0#1;main_~x~0#1 := 1 + main_#t~post2#1;havoc main_#t~post2#1; 7#L16-2true [2022-11-25 17:29:00,983 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 17:29:00,984 INFO L85 PathProgramCache]: Analyzing trace with hash 963, now seen corresponding path program 1 times [2022-11-25 17:29:00,995 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 17:29:00,995 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1196704312] [2022-11-25 17:29:00,996 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 17:29:00,997 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 17:29:01,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-25 17:29:01,123 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-25 17:29:01,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-25 17:29:01,147 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-25 17:29:01,150 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 17:29:01,151 INFO L85 PathProgramCache]: Analyzing trace with hash 1330, now seen corresponding path program 1 times [2022-11-25 17:29:01,151 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 17:29:01,151 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [10846607] [2022-11-25 17:29:01,151 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 17:29:01,152 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 17:29:01,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:29:01,281 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 17:29:01,281 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 17:29:01,282 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [10846607] [2022-11-25 17:29:01,282 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [10846607] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 17:29:01,283 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 17:29:01,283 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-11-25 17:29:01,283 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [153894860] [2022-11-25 17:29:01,297 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 17:29:01,302 INFO L765 eck$LassoCheckResult]: loop already infeasible [2022-11-25 17:29:01,303 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 17:29:01,346 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-25 17:29:01,347 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-25 17:29:01,349 INFO L87 Difference]: Start difference. First operand has 11 states, 10 states have (on average 1.5) internal successors, (15), 10 states have internal predecessors, (15), 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) [2022-11-25 17:29:01,402 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 17:29:01,403 INFO L93 Difference]: Finished difference Result 11 states and 12 transitions. [2022-11-25 17:29:01,405 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 11 states and 12 transitions. [2022-11-25 17:29:01,406 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 5 [2022-11-25 17:29:01,410 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 11 states to 7 states and 8 transitions. [2022-11-25 17:29:01,411 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 7 [2022-11-25 17:29:01,411 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 7 [2022-11-25 17:29:01,412 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 8 transitions. [2022-11-25 17:29:01,412 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-25 17:29:01,413 INFO L218 hiAutomatonCegarLoop]: Abstraction has 7 states and 8 transitions. [2022-11-25 17:29:01,432 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7 states and 8 transitions. [2022-11-25 17:29:01,440 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7 to 7. [2022-11-25 17:29:01,441 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7 states, 7 states have (on average 1.1428571428571428) internal successors, (8), 6 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 17:29:01,442 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 8 transitions. [2022-11-25 17:29:01,443 INFO L240 hiAutomatonCegarLoop]: Abstraction has 7 states and 8 transitions. [2022-11-25 17:29:01,445 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-25 17:29:01,448 INFO L428 stractBuchiCegarLoop]: Abstraction has 7 states and 8 transitions. [2022-11-25 17:29:01,449 INFO L335 stractBuchiCegarLoop]: ======== Iteration 2 ============ [2022-11-25 17:29:01,449 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 7 states and 8 transitions. [2022-11-25 17:29:01,449 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 5 [2022-11-25 17:29:01,450 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-11-25 17:29:01,450 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-11-25 17:29:01,450 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1] [2022-11-25 17:29:01,450 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2022-11-25 17:29:01,451 INFO L748 eck$LassoCheckResult]: Stem: 35#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true; 36#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet0#1, main_#t~nondet1#1, main_#t~post2#1, main_~x~0#1;havoc main_~x~0#1;main_~x~0#1 := main_#t~nondet0#1;havoc main_#t~nondet0#1; 37#L16-2 [2022-11-25 17:29:01,451 INFO L750 eck$LassoCheckResult]: Loop: 37#L16-2 assume !!(0 == main_~x~0#1); 31#L16 assume main_~x~0#1 >= 0; 32#L17 assume 0 == main_~x~0#1 || 0 == main_~x~0#1 - 1;main_#t~nondet1#1 := 0; 33#L17-4 main_~x~0#1 := main_#t~nondet1#1;havoc main_#t~nondet1#1; 37#L16-2 [2022-11-25 17:29:01,452 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 17:29:01,452 INFO L85 PathProgramCache]: Analyzing trace with hash 963, now seen corresponding path program 2 times [2022-11-25 17:29:01,452 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 17:29:01,453 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [656105593] [2022-11-25 17:29:01,453 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 17:29:01,453 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 17:29:01,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-25 17:29:01,457 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-25 17:29:01,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-25 17:29:01,460 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-25 17:29:01,461 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 17:29:01,461 INFO L85 PathProgramCache]: Analyzing trace with hash 1265229, now seen corresponding path program 1 times [2022-11-25 17:29:01,461 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 17:29:01,462 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [93121928] [2022-11-25 17:29:01,462 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 17:29:01,462 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 17:29:01,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-25 17:29:01,468 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-25 17:29:01,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-25 17:29:01,474 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-25 17:29:01,475 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 17:29:01,475 INFO L85 PathProgramCache]: Analyzing trace with hash 889692431, now seen corresponding path program 1 times [2022-11-25 17:29:01,476 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 17:29:01,476 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1012813694] [2022-11-25 17:29:01,476 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 17:29:01,477 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 17:29:01,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-25 17:29:01,483 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-25 17:29:01,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-25 17:29:01,489 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-25 17:29:01,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-25 17:29:01,586 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-25 17:29:01,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-25 17:29:01,614 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 25.11 05:29:01 BoogieIcfgContainer [2022-11-25 17:29:01,614 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2022-11-25 17:29:01,616 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-25 17:29:01,616 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-25 17:29:01,616 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-25 17:29:01,617 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 05:29:00" (3/4) ... [2022-11-25 17:29:01,620 INFO L134 WitnessPrinter]: Generating witness for non-termination counterexample [2022-11-25 17:29:01,666 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ccaba61d-ee7e-4563-b08c-4ea08728310a/bin/uautomizer-ZsLfNo2U6R/witness.graphml [2022-11-25 17:29:01,667 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-25 17:29:01,668 INFO L158 Benchmark]: Toolchain (without parser) took 1556.62ms. Allocated memory was 138.4MB in the beginning and 199.2MB in the end (delta: 60.8MB). Free memory was 73.8MB in the beginning and 148.7MB in the end (delta: -74.9MB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-25 17:29:01,668 INFO L158 Benchmark]: CDTParser took 0.26ms. Allocated memory is still 138.4MB. Free memory was 108.1MB in the beginning and 108.1MB in the end (delta: 72.7kB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-25 17:29:01,675 INFO L158 Benchmark]: CACSL2BoogieTranslator took 353.51ms. Allocated memory was 138.4MB in the beginning and 199.2MB in the end (delta: 60.8MB). Free memory was 73.6MB in the beginning and 163.2MB in the end (delta: -89.6MB). Peak memory consumption was 7.3MB. Max. memory is 16.1GB. [2022-11-25 17:29:01,675 INFO L158 Benchmark]: Boogie Procedure Inliner took 38.23ms. Allocated memory is still 199.2MB. Free memory was 163.2MB in the beginning and 162.0MB in the end (delta: 1.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-25 17:29:01,676 INFO L158 Benchmark]: Boogie Preprocessor took 30.71ms. Allocated memory is still 199.2MB. Free memory was 162.0MB in the beginning and 161.1MB in the end (delta: 959.5kB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-25 17:29:01,676 INFO L158 Benchmark]: RCFGBuilder took 313.65ms. Allocated memory is still 199.2MB. Free memory was 161.1MB in the beginning and 151.5MB in the end (delta: 9.6MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2022-11-25 17:29:01,677 INFO L158 Benchmark]: BuchiAutomizer took 762.30ms. Allocated memory is still 199.2MB. Free memory was 151.5MB in the beginning and 150.4MB in the end (delta: 1.1MB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-25 17:29:01,677 INFO L158 Benchmark]: Witness Printer took 51.14ms. Allocated memory is still 199.2MB. Free memory was 149.9MB in the beginning and 148.7MB in the end (delta: 1.3MB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-25 17:29:01,683 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.26ms. Allocated memory is still 138.4MB. Free memory was 108.1MB in the beginning and 108.1MB in the end (delta: 72.7kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 353.51ms. Allocated memory was 138.4MB in the beginning and 199.2MB in the end (delta: 60.8MB). Free memory was 73.6MB in the beginning and 163.2MB in the end (delta: -89.6MB). Peak memory consumption was 7.3MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 38.23ms. Allocated memory is still 199.2MB. Free memory was 163.2MB in the beginning and 162.0MB in the end (delta: 1.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 30.71ms. Allocated memory is still 199.2MB. Free memory was 162.0MB in the beginning and 161.1MB in the end (delta: 959.5kB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 313.65ms. Allocated memory is still 199.2MB. Free memory was 161.1MB in the beginning and 151.5MB in the end (delta: 9.6MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * BuchiAutomizer took 762.30ms. Allocated memory is still 199.2MB. Free memory was 151.5MB in the beginning and 150.4MB in the end (delta: 1.1MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 51.14ms. Allocated memory is still 199.2MB. Free memory was 149.9MB in the beginning and 148.7MB in the end (delta: 1.3MB). 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 7 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, 0 StatesRemovedByMinimization, 0 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, 4 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 4 mSDsluCounter, 12 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 4 mSDsCounter, 0 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 7 IncrementalHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 0 mSolverCounterUnsat, 8 mSDtfsCounter, 7 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! [2022-11-25 17:29:01,716 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ccaba61d-ee7e-4563-b08c-4ea08728310a/bin/uautomizer-ZsLfNo2U6R/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)