./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/termination-nla/divbin1-both-nt.i --full-output --architecture 32bit -------------------------------------------------------------------------------- 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_df829748-135d-4aa4-9bd0-f087a56e7f98/bin/uautomizer-tPACEb0tL8/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_df829748-135d-4aa4-9bd0-f087a56e7f98/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_df829748-135d-4aa4-9bd0-f087a56e7f98/bin/uautomizer-tPACEb0tL8/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_df829748-135d-4aa4-9bd0-f087a56e7f98/bin/uautomizer-tPACEb0tL8/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/termination-nla/divbin1-both-nt.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_df829748-135d-4aa4-9bd0-f087a56e7f98/bin/uautomizer-tPACEb0tL8/config/svcomp-Termination-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_df829748-135d-4aa4-9bd0-f087a56e7f98/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 32bit --witnessprinter.graph.data.programhash 34d019f936433212ffb98f9f63454a8763bb76cd95f2f69226ba6fae3efa4715 --- 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 11:22:30,728 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-16 11:22:30,732 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-16 11:22:30,759 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-16 11:22:30,760 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-16 11:22:30,762 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-16 11:22:30,764 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-16 11:22:30,766 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-16 11:22:30,769 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-16 11:22:30,770 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-16 11:22:30,771 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-16 11:22:30,773 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-16 11:22:30,774 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-16 11:22:30,775 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-16 11:22:30,777 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-16 11:22:30,779 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-16 11:22:30,780 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-16 11:22:30,781 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-16 11:22:30,783 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-16 11:22:30,786 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-16 11:22:30,788 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-16 11:22:30,792 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-16 11:22:30,804 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-16 11:22:30,806 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-16 11:22:30,810 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-16 11:22:30,811 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-16 11:22:30,811 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-16 11:22:30,812 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-16 11:22:30,813 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-16 11:22:30,815 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-16 11:22:30,823 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-16 11:22:30,824 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-16 11:22:30,825 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-16 11:22:30,826 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-16 11:22:30,828 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-16 11:22:30,828 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-16 11:22:30,829 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-16 11:22:30,832 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-16 11:22:30,832 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-16 11:22:30,834 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-16 11:22:30,835 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-16 11:22:30,837 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_df829748-135d-4aa4-9bd0-f087a56e7f98/bin/uautomizer-tPACEb0tL8/config/svcomp-Termination-32bit-Automizer_Default.epf [2022-11-16 11:22:30,889 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-16 11:22:30,895 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-16 11:22:30,896 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-16 11:22:30,896 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-16 11:22:30,898 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-16 11:22:30,898 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-16 11:22:30,899 INFO L138 SettingsManager]: * Use SBE=true [2022-11-16 11:22:30,899 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2022-11-16 11:22:30,899 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2022-11-16 11:22:30,899 INFO L138 SettingsManager]: * Use old map elimination=false [2022-11-16 11:22:30,901 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2022-11-16 11:22:30,901 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2022-11-16 11:22:30,902 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2022-11-16 11:22:30,902 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-16 11:22:30,902 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-16 11:22:30,903 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-16 11:22:30,903 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-16 11:22:30,903 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-16 11:22:30,903 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-16 11:22:30,904 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2022-11-16 11:22:30,904 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2022-11-16 11:22:30,904 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2022-11-16 11:22:30,904 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-16 11:22:30,905 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-16 11:22:30,906 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2022-11-16 11:22:30,907 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-16 11:22:30,907 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2022-11-16 11:22:30,907 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-16 11:22:30,908 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-16 11:22:30,908 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-16 11:22:30,908 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-16 11:22:30,910 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2022-11-16 11:22:30,910 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_df829748-135d-4aa4-9bd0-f087a56e7f98/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_df829748-135d-4aa4-9bd0-f087a56e7f98/bin/uautomizer-tPACEb0tL8 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 34d019f936433212ffb98f9f63454a8763bb76cd95f2f69226ba6fae3efa4715 [2022-11-16 11:22:31,345 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-16 11:22:31,371 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-16 11:22:31,375 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-16 11:22:31,377 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-16 11:22:31,378 INFO L275 PluginConnector]: CDTParser initialized [2022-11-16 11:22:31,379 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_df829748-135d-4aa4-9bd0-f087a56e7f98/bin/uautomizer-tPACEb0tL8/../../sv-benchmarks/c/termination-nla/divbin1-both-nt.i [2022-11-16 11:22:31,449 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_df829748-135d-4aa4-9bd0-f087a56e7f98/bin/uautomizer-tPACEb0tL8/data/2bed468f6/111745561c9448158303935286c2bc59/FLAGae0c5caa3 [2022-11-16 11:22:31,978 INFO L306 CDTParser]: Found 1 translation units. [2022-11-16 11:22:31,979 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_df829748-135d-4aa4-9bd0-f087a56e7f98/sv-benchmarks/c/termination-nla/divbin1-both-nt.i [2022-11-16 11:22:31,989 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_df829748-135d-4aa4-9bd0-f087a56e7f98/bin/uautomizer-tPACEb0tL8/data/2bed468f6/111745561c9448158303935286c2bc59/FLAGae0c5caa3 [2022-11-16 11:22:32,333 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_df829748-135d-4aa4-9bd0-f087a56e7f98/bin/uautomizer-tPACEb0tL8/data/2bed468f6/111745561c9448158303935286c2bc59 [2022-11-16 11:22:32,336 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-16 11:22:32,338 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-16 11:22:32,342 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-16 11:22:32,342 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-16 11:22:32,347 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-16 11:22:32,348 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 11:22:32" (1/1) ... [2022-11-16 11:22:32,350 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4746dc27 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:22:32, skipping insertion in model container [2022-11-16 11:22:32,350 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 11:22:32" (1/1) ... [2022-11-16 11:22:32,360 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-16 11:22:32,375 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-16 11:22:32,598 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-16 11:22:32,601 INFO L203 MainTranslator]: Completed pre-run [2022-11-16 11:22:32,619 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-16 11:22:32,634 INFO L208 MainTranslator]: Completed translation [2022-11-16 11:22:32,634 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:22:32 WrapperNode [2022-11-16 11:22:32,635 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-16 11:22:32,636 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-16 11:22:32,636 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-16 11:22:32,636 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-16 11:22:32,645 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:22:32" (1/1) ... [2022-11-16 11:22:32,650 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:22:32" (1/1) ... [2022-11-16 11:22:32,672 INFO L138 Inliner]: procedures = 5, calls = 4, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 38 [2022-11-16 11:22:32,673 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-16 11:22:32,674 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-16 11:22:32,674 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-16 11:22:32,674 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-16 11:22:32,686 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:22:32" (1/1) ... [2022-11-16 11:22:32,686 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:22:32" (1/1) ... [2022-11-16 11:22:32,687 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:22:32" (1/1) ... [2022-11-16 11:22:32,687 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:22:32" (1/1) ... [2022-11-16 11:22:32,690 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:22:32" (1/1) ... [2022-11-16 11:22:32,695 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:22:32" (1/1) ... [2022-11-16 11:22:32,697 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:22:32" (1/1) ... [2022-11-16 11:22:32,698 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:22:32" (1/1) ... [2022-11-16 11:22:32,699 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-16 11:22:32,700 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-16 11:22:32,701 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-16 11:22:32,701 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-16 11:22:32,702 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:22:32" (1/1) ... [2022-11-16 11:22:32,716 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-16 11:22:32,730 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_df829748-135d-4aa4-9bd0-f087a56e7f98/bin/uautomizer-tPACEb0tL8/z3 [2022-11-16 11:22:32,746 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_df829748-135d-4aa4-9bd0-f087a56e7f98/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-16 11:22:32,758 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_df829748-135d-4aa4-9bd0-f087a56e7f98/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2022-11-16 11:22:32,801 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-16 11:22:32,802 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-16 11:22:32,802 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_unsigned_int [2022-11-16 11:22:32,881 INFO L235 CfgBuilder]: Building ICFG [2022-11-16 11:22:32,884 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-16 11:22:33,072 INFO L276 CfgBuilder]: Performing block encoding [2022-11-16 11:22:33,082 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-16 11:22:33,082 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2022-11-16 11:22:33,085 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.11 11:22:33 BoogieIcfgContainer [2022-11-16 11:22:33,085 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-16 11:22:33,087 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2022-11-16 11:22:33,087 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2022-11-16 11:22:33,093 INFO L275 PluginConnector]: BuchiAutomizer initialized [2022-11-16 11:22:33,094 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-11-16 11:22:33,094 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 16.11 11:22:32" (1/3) ... [2022-11-16 11:22:33,096 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@46cc555b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 16.11 11:22:33, skipping insertion in model container [2022-11-16 11:22:33,096 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-11-16 11:22:33,096 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:22:32" (2/3) ... [2022-11-16 11:22:33,097 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@46cc555b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 16.11 11:22:33, skipping insertion in model container [2022-11-16 11:22:33,097 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-11-16 11:22:33,097 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.11 11:22:33" (3/3) ... [2022-11-16 11:22:33,099 INFO L332 chiAutomizerObserver]: Analyzing ICFG divbin1-both-nt.i [2022-11-16 11:22:33,169 INFO L303 stractBuchiCegarLoop]: Interprodecural is true [2022-11-16 11:22:33,169 INFO L304 stractBuchiCegarLoop]: Hoare is false [2022-11-16 11:22:33,169 INFO L305 stractBuchiCegarLoop]: Compute interpolants for ForwardPredicates [2022-11-16 11:22:33,169 INFO L306 stractBuchiCegarLoop]: Backedges is STRAIGHT_LINE [2022-11-16 11:22:33,169 INFO L307 stractBuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2022-11-16 11:22:33,170 INFO L308 stractBuchiCegarLoop]: Difference is false [2022-11-16 11:22:33,170 INFO L309 stractBuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2022-11-16 11:22:33,170 INFO L313 stractBuchiCegarLoop]: ======== Iteration 0 == of CEGAR loop == BuchiAutomatonCegarLoop ======== [2022-11-16 11:22:33,176 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 13 states, 12 states have (on average 1.6666666666666667) internal successors, (20), 12 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) [2022-11-16 11:22:33,207 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2022-11-16 11:22:33,208 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-11-16 11:22:33,208 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-11-16 11:22:33,216 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2022-11-16 11:22:33,216 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1] [2022-11-16 11:22:33,217 INFO L335 stractBuchiCegarLoop]: ======== Iteration 1 ============ [2022-11-16 11:22:33,217 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 13 states, 12 states have (on average 1.6666666666666667) internal successors, (20), 12 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) [2022-11-16 11:22:33,219 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2022-11-16 11:22:33,219 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-11-16 11:22:33,219 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-11-16 11:22:33,220 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2022-11-16 11:22:33,220 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1] [2022-11-16 11:22:33,230 INFO L748 eck$LassoCheckResult]: Stem: 4#ULTIMATE.startENTRYtrue assume { :begin_inline_ULTIMATE.init } true; 8#L-1true assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret0#1, main_#t~ret1#1, main_~A~0#1, main_~B~0#1, main_~q~0#1, main_~r~0#1, main_~b~0#1;havoc main_~A~0#1;havoc main_~B~0#1;havoc main_~q~0#1;havoc main_~r~0#1;havoc main_~b~0#1;call main_#t~ret0#1 := __VERIFIER_nondet_unsigned_int();main_~A~0#1 := main_#t~ret0#1;havoc main_#t~ret0#1;call main_#t~ret1#1 := __VERIFIER_nondet_unsigned_int();main_~B~0#1 := main_#t~ret1#1;havoc main_#t~ret1#1; 5#L15true assume !(main_~B~0#1 % 4294967296 >= 2147483647); 2#L16true assume !(main_~B~0#1 % 4294967296 < 1); 10#L17true assume !(main_~A~0#1 % 4294967296 >= 2147483647);main_~q~0#1 := 0;main_~r~0#1 := main_~A~0#1;main_~b~0#1 := main_~B~0#1; 11#L21true assume main_~r~0#1 % 4294967296 < main_~b~0#1 % 4294967296; 9#L23-1true [2022-11-16 11:22:33,230 INFO L750 eck$LassoCheckResult]: Loop: 9#L23-1true assume !!(main_~A~0#1 % 4294967296 == (main_~q~0#1 * main_~b~0#1 + main_~r~0#1) % 4294967296); 12#L23true assume !(2 * (if main_~b~0#1 % 4294967296 < 0 && 0 != main_~b~0#1 % 4294967296 % 2 then 1 + main_~b~0#1 % 4294967296 / 2 else main_~b~0#1 % 4294967296 / 2) % 4294967296 == main_~b~0#1 % 4294967296); 9#L23-1true [2022-11-16 11:22:33,238 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:22:33,238 INFO L85 PathProgramCache]: Analyzing trace with hash 889571339, now seen corresponding path program 1 times [2022-11-16 11:22:33,250 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:22:33,251 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [771828679] [2022-11-16 11:22:33,251 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:22:33,252 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:22:33,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-16 11:22:33,426 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-16 11:22:33,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-16 11:22:33,490 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-16 11:22:33,495 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:22:33,495 INFO L85 PathProgramCache]: Analyzing trace with hash 1900, now seen corresponding path program 1 times [2022-11-16 11:22:33,496 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:22:33,498 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [448202818] [2022-11-16 11:22:33,499 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:22:33,500 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:22:33,520 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-16 11:22:33,521 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1086436231] [2022-11-16 11:22:33,522 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:22:33,522 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-16 11:22:33,523 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_df829748-135d-4aa4-9bd0-f087a56e7f98/bin/uautomizer-tPACEb0tL8/z3 [2022-11-16 11:22:33,529 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_df829748-135d-4aa4-9bd0-f087a56e7f98/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-16 11:22:33,577 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_df829748-135d-4aa4-9bd0-f087a56e7f98/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-11-16 11:22:33,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-16 11:22:33,634 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-16 11:22:33,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-16 11:22:33,645 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-16 11:22:33,647 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:22:33,647 INFO L85 PathProgramCache]: Analyzing trace with hash 179565814, now seen corresponding path program 1 times [2022-11-16 11:22:33,648 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:22:33,648 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1718649843] [2022-11-16 11:22:33,648 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:22:33,649 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:22:33,660 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-16 11:22:33,660 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [720990204] [2022-11-16 11:22:33,661 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:22:33,661 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-16 11:22:33,661 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_df829748-135d-4aa4-9bd0-f087a56e7f98/bin/uautomizer-tPACEb0tL8/z3 [2022-11-16 11:22:33,697 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_df829748-135d-4aa4-9bd0-f087a56e7f98/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-16 11:22:33,745 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_df829748-135d-4aa4-9bd0-f087a56e7f98/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-11-16 11:22:33,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-16 11:22:33,788 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-16 11:22:33,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-16 11:22:33,830 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-16 11:22:34,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-16 11:22:34,082 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-16 11:22:34,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-16 11:22:34,157 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 16.11 11:22:34 BoogieIcfgContainer [2022-11-16 11:22:34,158 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2022-11-16 11:22:34,159 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-16 11:22:34,159 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-16 11:22:34,159 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-16 11:22:34,160 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.11 11:22:33" (3/4) ... [2022-11-16 11:22:34,170 INFO L134 WitnessPrinter]: Generating witness for non-termination counterexample [2022-11-16 11:22:34,222 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_df829748-135d-4aa4-9bd0-f087a56e7f98/bin/uautomizer-tPACEb0tL8/witness.graphml [2022-11-16 11:22:34,223 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-16 11:22:34,227 INFO L158 Benchmark]: Toolchain (without parser) took 1886.24ms. Allocated memory is still 125.8MB. Free memory was 91.4MB in the beginning and 63.9MB in the end (delta: 27.5MB). Peak memory consumption was 24.5MB. Max. memory is 16.1GB. [2022-11-16 11:22:34,228 INFO L158 Benchmark]: CDTParser took 0.30ms. Allocated memory is still 125.8MB. Free memory is still 107.3MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-16 11:22:34,232 INFO L158 Benchmark]: CACSL2BoogieTranslator took 293.36ms. Allocated memory is still 125.8MB. Free memory was 91.2MB in the beginning and 104.2MB in the end (delta: -13.0MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2022-11-16 11:22:34,237 INFO L158 Benchmark]: Boogie Procedure Inliner took 37.07ms. Allocated memory is still 125.8MB. Free memory was 104.2MB in the beginning and 102.8MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-16 11:22:34,238 INFO L158 Benchmark]: Boogie Preprocessor took 25.90ms. Allocated memory is still 125.8MB. Free memory was 102.8MB in the beginning and 101.6MB in the end (delta: 1.1MB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-16 11:22:34,240 INFO L158 Benchmark]: RCFGBuilder took 385.05ms. Allocated memory is still 125.8MB. Free memory was 101.6MB in the beginning and 91.7MB in the end (delta: 9.9MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2022-11-16 11:22:34,240 INFO L158 Benchmark]: BuchiAutomizer took 1071.51ms. Allocated memory is still 125.8MB. Free memory was 91.7MB in the beginning and 66.0MB in the end (delta: 25.7MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. [2022-11-16 11:22:34,241 INFO L158 Benchmark]: Witness Printer took 64.18ms. Allocated memory is still 125.8MB. Free memory was 66.0MB in the beginning and 63.9MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-16 11:22:34,247 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.30ms. Allocated memory is still 125.8MB. Free memory is still 107.3MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 293.36ms. Allocated memory is still 125.8MB. Free memory was 91.2MB in the beginning and 104.2MB in the end (delta: -13.0MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 37.07ms. Allocated memory is still 125.8MB. Free memory was 104.2MB in the beginning and 102.8MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 25.90ms. Allocated memory is still 125.8MB. Free memory was 102.8MB in the beginning and 101.6MB in the end (delta: 1.1MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 385.05ms. Allocated memory is still 125.8MB. Free memory was 101.6MB in the beginning and 91.7MB in the end (delta: 9.9MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * BuchiAutomizer took 1071.51ms. Allocated memory is still 125.8MB. Free memory was 91.7MB in the beginning and 66.0MB in the end (delta: 25.7MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. * Witness Printer took 64.18ms. Allocated memory is still 125.8MB. Free memory was 66.0MB in the beginning and 63.9MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Trivial decomposition into one nonterminating module. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 0.9s and 1 iterations. TraceHistogramMax:1. Analysis of lassos took 0.8s. Construction of modules took 0.0s. Büchi inclusion checks took 0.0s. Highest rank in rank-based complementation 0. Minimization of det autom 0. Minimization of nondet autom 0. Automata minimization No data available. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had -1 states and ocurred in iteration -1. Nontrivial modules had stage [0, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: LassoAnalysisResults: nont1 unkn0 SFLI0 SFLT0 conc0 concLT0 SILN0 SILU0 SILI0 SILT0 lasso0 LassoPreprocessingBenchmarks: LassoTerminationAnalysisBenchmarks: not availableLassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 0 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 0 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.0s InitialAbstractionConstructionTime: 0.0s - TerminationAnalysisResult: Nontermination possible Buchi Automizer proved that your program is nonterminating for some inputs - LassoShapedNonTerminationArgument [Line: 22]: Nontermination argument in form of an infinite program execution. Nontermination argument in form of an infinite program execution. Stem: [L11] unsigned A, B; [L12] unsigned q, r, b; [L13] A = __VERIFIER_nondet_unsigned_int() [L14] B = __VERIFIER_nondet_unsigned_int() [L15] COND FALSE !(B >= (0x7fffffff * 2U + 1U)/2) VAL [B=-4294967295] [L16] COND FALSE !(B < 1) VAL [B=-4294967295] [L17] COND FALSE !(A >= (0x7fffffff * 2U + 1U)/2) [L18] q = 0 [L19] r = A [L20] b = B VAL [A=0, B=-4294967295, b=-4294967295, q=0, r=0] [L21] COND TRUE r < b VAL [A=0, B=-4294967295, b=-4294967295, q=0, r=0] Loop: [L22] COND TRUE A == q * b + r [L23] COND FALSE !(2 * (b / 2) == b) End of lasso representation. - StatisticsResult: NonterminationArgumentStatistics Fixpoint - NonterminatingLassoResult [Line: 22]: Nonterminating execution Found a nonterminating execution for the following lasso shaped sequence of statements. Stem: [L11] unsigned A, B; [L12] unsigned q, r, b; [L13] A = __VERIFIER_nondet_unsigned_int() [L14] B = __VERIFIER_nondet_unsigned_int() [L15] COND FALSE !(B >= (0x7fffffff * 2U + 1U)/2) VAL [B=-4294967295] [L16] COND FALSE !(B < 1) VAL [B=-4294967295] [L17] COND FALSE !(A >= (0x7fffffff * 2U + 1U)/2) [L18] q = 0 [L19] r = A [L20] b = B VAL [A=0, B=-4294967295, b=-4294967295, q=0, r=0] [L21] COND TRUE r < b VAL [A=0, B=-4294967295, b=-4294967295, q=0, r=0] Loop: [L22] COND TRUE A == q * b + r [L23] COND FALSE !(2 * (b / 2) == b) End of lasso representation. RESULT: Ultimate proved your program to be incorrect! [2022-11-16 11:22:34,283 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_df829748-135d-4aa4-9bd0-f087a56e7f98/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-11-16 11:22:34,485 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_df829748-135d-4aa4-9bd0-f087a56e7f98/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2022-11-16 11:22:34,683 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_df829748-135d-4aa4-9bd0-f087a56e7f98/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)