./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/termination-bwb/not-05-false.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 6b4ec56b 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_47175c1a-53f8-478c-932e-6c793bc8e5e5/bin/uautomizer-ug76WZFUDN/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47175c1a-53f8-478c-932e-6c793bc8e5e5/bin/uautomizer-ug76WZFUDN/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47175c1a-53f8-478c-932e-6c793bc8e5e5/bin/uautomizer-ug76WZFUDN/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47175c1a-53f8-478c-932e-6c793bc8e5e5/bin/uautomizer-ug76WZFUDN/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/termination-bwb/not-05-false.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47175c1a-53f8-478c-932e-6c793bc8e5e5/bin/uautomizer-ug76WZFUDN/config/svcomp-Termination-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47175c1a-53f8-478c-932e-6c793bc8e5e5/bin/uautomizer-ug76WZFUDN --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 355f76cd991b10eec25ab8029f87e9c70f181a0a2e2b92cd9248db0a2f405e2c --- 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-6b4ec56 [2022-11-20 10:30:39,611 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-20 10:30:39,613 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-20 10:30:39,654 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-20 10:30:39,655 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-20 10:30:39,658 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-20 10:30:39,660 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-20 10:30:39,663 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-20 10:30:39,665 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-20 10:30:39,671 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-20 10:30:39,672 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-20 10:30:39,674 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-20 10:30:39,675 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-20 10:30:39,677 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-20 10:30:39,679 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-20 10:30:39,681 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-20 10:30:39,683 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-20 10:30:39,684 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-20 10:30:39,685 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-20 10:30:39,692 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-20 10:30:39,693 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-20 10:30:39,695 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-20 10:30:39,697 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-20 10:30:39,698 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-20 10:30:39,707 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-20 10:30:39,709 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-20 10:30:39,709 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-20 10:30:39,711 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-20 10:30:39,712 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-20 10:30:39,713 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-20 10:30:39,714 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-20 10:30:39,715 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-20 10:30:39,717 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-20 10:30:39,719 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-20 10:30:39,720 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-20 10:30:39,720 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-20 10:30:39,721 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-20 10:30:39,721 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-20 10:30:39,721 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-20 10:30:39,722 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-20 10:30:39,723 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-20 10:30:39,724 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47175c1a-53f8-478c-932e-6c793bc8e5e5/bin/uautomizer-ug76WZFUDN/config/svcomp-Termination-64bit-Automizer_Default.epf [2022-11-20 10:30:39,767 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-20 10:30:39,768 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-20 10:30:39,768 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-20 10:30:39,769 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-20 10:30:39,784 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-20 10:30:39,784 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-20 10:30:39,784 INFO L138 SettingsManager]: * Use SBE=true [2022-11-20 10:30:39,784 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2022-11-20 10:30:39,785 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2022-11-20 10:30:39,785 INFO L138 SettingsManager]: * Use old map elimination=false [2022-11-20 10:30:39,786 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2022-11-20 10:30:39,786 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2022-11-20 10:30:39,786 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2022-11-20 10:30:39,787 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-20 10:30:39,787 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-20 10:30:39,787 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-20 10:30:39,787 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-20 10:30:39,787 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2022-11-20 10:30:39,788 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2022-11-20 10:30:39,788 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2022-11-20 10:30:39,788 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-20 10:30:39,788 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2022-11-20 10:30:39,788 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-20 10:30:39,789 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2022-11-20 10:30:39,789 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-20 10:30:39,789 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-20 10:30:39,790 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-20 10:30:39,790 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-20 10:30:39,791 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2022-11-20 10:30:39,791 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_47175c1a-53f8-478c-932e-6c793bc8e5e5/bin/uautomizer-ug76WZFUDN/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47175c1a-53f8-478c-932e-6c793bc8e5e5/bin/uautomizer-ug76WZFUDN Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 355f76cd991b10eec25ab8029f87e9c70f181a0a2e2b92cd9248db0a2f405e2c [2022-11-20 10:30:40,072 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-20 10:30:40,094 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-20 10:30:40,096 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-20 10:30:40,098 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-20 10:30:40,099 INFO L275 PluginConnector]: CDTParser initialized [2022-11-20 10:30:40,100 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47175c1a-53f8-478c-932e-6c793bc8e5e5/bin/uautomizer-ug76WZFUDN/../../sv-benchmarks/c/termination-bwb/not-05-false.c [2022-11-20 10:30:43,200 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-20 10:30:43,461 INFO L351 CDTParser]: Found 1 translation units. [2022-11-20 10:30:43,461 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47175c1a-53f8-478c-932e-6c793bc8e5e5/sv-benchmarks/c/termination-bwb/not-05-false.c [2022-11-20 10:30:43,468 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47175c1a-53f8-478c-932e-6c793bc8e5e5/bin/uautomizer-ug76WZFUDN/data/ee2f39fb1/36eaca9c361343e19057482e9152be64/FLAG221e35c12 [2022-11-20 10:30:43,483 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47175c1a-53f8-478c-932e-6c793bc8e5e5/bin/uautomizer-ug76WZFUDN/data/ee2f39fb1/36eaca9c361343e19057482e9152be64 [2022-11-20 10:30:43,485 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-20 10:30:43,487 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-20 10:30:43,488 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-20 10:30:43,489 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-20 10:30:43,499 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-20 10:30:43,500 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 10:30:43" (1/1) ... [2022-11-20 10:30:43,501 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@748622b5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:30:43, skipping insertion in model container [2022-11-20 10:30:43,502 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 10:30:43" (1/1) ... [2022-11-20 10:30:43,509 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-20 10:30:43,521 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-20 10:30:43,661 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-20 10:30:43,667 INFO L203 MainTranslator]: Completed pre-run [2022-11-20 10:30:43,679 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-20 10:30:43,692 INFO L208 MainTranslator]: Completed translation [2022-11-20 10:30:43,693 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:30:43 WrapperNode [2022-11-20 10:30:43,693 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-20 10:30:43,694 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-20 10:30:43,694 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-20 10:30:43,694 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-20 10:30:43,702 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:30:43" (1/1) ... [2022-11-20 10:30:43,708 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:30:43" (1/1) ... [2022-11-20 10:30:43,725 INFO L138 Inliner]: procedures = 4, calls = 2, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 23 [2022-11-20 10:30:43,726 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-20 10:30:43,726 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-20 10:30:43,726 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-20 10:30:43,727 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-20 10:30:43,736 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:30:43" (1/1) ... [2022-11-20 10:30:43,736 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:30:43" (1/1) ... [2022-11-20 10:30:43,737 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:30:43" (1/1) ... [2022-11-20 10:30:43,737 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:30:43" (1/1) ... [2022-11-20 10:30:43,740 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:30:43" (1/1) ... [2022-11-20 10:30:43,744 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:30:43" (1/1) ... [2022-11-20 10:30:43,745 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:30:43" (1/1) ... [2022-11-20 10:30:43,746 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:30:43" (1/1) ... [2022-11-20 10:30:43,747 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-20 10:30:43,748 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-20 10:30:43,748 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-20 10:30:43,748 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-20 10:30:43,749 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:30:43" (1/1) ... [2022-11-20 10:30:43,756 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-20 10:30:43,768 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47175c1a-53f8-478c-932e-6c793bc8e5e5/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 10:30:43,783 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47175c1a-53f8-478c-932e-6c793bc8e5e5/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-20 10:30:43,810 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47175c1a-53f8-478c-932e-6c793bc8e5e5/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2022-11-20 10:30:43,826 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-20 10:30:43,826 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-20 10:30:43,892 INFO L235 CfgBuilder]: Building ICFG [2022-11-20 10:30:43,895 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-20 10:30:44,022 INFO L276 CfgBuilder]: Performing block encoding [2022-11-20 10:30:44,030 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-20 10:30:44,030 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2022-11-20 10:30:44,032 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 10:30:44 BoogieIcfgContainer [2022-11-20 10:30:44,032 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-20 10:30:44,035 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2022-11-20 10:30:44,035 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2022-11-20 10:30:44,040 INFO L275 PluginConnector]: BuchiAutomizer initialized [2022-11-20 10:30:44,042 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-11-20 10:30:44,042 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 20.11 10:30:43" (1/3) ... [2022-11-20 10:30:44,043 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@6789c884 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 20.11 10:30:44, skipping insertion in model container [2022-11-20 10:30:44,043 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-11-20 10:30:44,044 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:30:43" (2/3) ... [2022-11-20 10:30:44,046 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@6789c884 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 20.11 10:30:44, skipping insertion in model container [2022-11-20 10:30:44,047 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-11-20 10:30:44,047 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 10:30:44" (3/3) ... [2022-11-20 10:30:44,051 INFO L332 chiAutomizerObserver]: Analyzing ICFG not-05-false.c [2022-11-20 10:30:44,130 INFO L303 stractBuchiCegarLoop]: Interprodecural is true [2022-11-20 10:30:44,131 INFO L304 stractBuchiCegarLoop]: Hoare is false [2022-11-20 10:30:44,131 INFO L305 stractBuchiCegarLoop]: Compute interpolants for ForwardPredicates [2022-11-20 10:30:44,131 INFO L306 stractBuchiCegarLoop]: Backedges is STRAIGHT_LINE [2022-11-20 10:30:44,131 INFO L307 stractBuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2022-11-20 10:30:44,131 INFO L308 stractBuchiCegarLoop]: Difference is false [2022-11-20 10:30:44,131 INFO L309 stractBuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2022-11-20 10:30:44,132 INFO L313 stractBuchiCegarLoop]: ======== Iteration 0 == of CEGAR loop == BuchiAutomatonCegarLoop ======== [2022-11-20 10:30:44,139 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 8 states, 7 states have (on average 1.4285714285714286) internal successors, (10), 7 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 10:30:44,166 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2022-11-20 10:30:44,166 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-11-20 10:30:44,166 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-11-20 10:30:44,172 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1] [2022-11-20 10:30:44,172 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1] [2022-11-20 10:30:44,173 INFO L335 stractBuchiCegarLoop]: ======== Iteration 1 ============ [2022-11-20 10:30:44,173 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 8 states, 7 states have (on average 1.4285714285714286) internal successors, (10), 7 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 10:30:44,175 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2022-11-20 10:30:44,175 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-11-20 10:30:44,175 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-11-20 10:30:44,175 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1] [2022-11-20 10:30:44,176 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1] [2022-11-20 10:30:44,186 INFO L748 eck$LassoCheckResult]: Stem: 5#ULTIMATE.startENTRYtrue assume { :begin_inline_ULTIMATE.init } true; 7#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~nondet2#1, main_~a~0#1, main_~x~0#1, main_~y~0#1;havoc main_~a~0#1;havoc main_~x~0#1;havoc main_~y~0#1;main_~x~0#1 := main_#t~nondet0#1;havoc main_#t~nondet0#1;main_~y~0#1 := main_#t~nondet1#1;havoc main_#t~nondet1#1;main_~a~0#1 := 0; 6#L18-2true [2022-11-20 10:30:44,187 INFO L750 eck$LassoCheckResult]: Loop: 6#L18-2true assume !!(main_~y~0#1 > 0); 4#L18true assume !(main_~x~0#1 < 0);main_~y~0#1 := main_~y~0#1 - 1; 6#L18-2true [2022-11-20 10:30:44,199 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 10:30:44,199 INFO L85 PathProgramCache]: Analyzing trace with hash 963, now seen corresponding path program 1 times [2022-11-20 10:30:44,210 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 10:30:44,210 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1097337362] [2022-11-20 10:30:44,211 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 10:30:44,212 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 10:30:44,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-20 10:30:44,306 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-20 10:30:44,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-20 10:30:44,326 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-20 10:30:44,329 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 10:30:44,329 INFO L85 PathProgramCache]: Analyzing trace with hash 1318, now seen corresponding path program 1 times [2022-11-20 10:30:44,329 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 10:30:44,330 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1949444752] [2022-11-20 10:30:44,330 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 10:30:44,330 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 10:30:44,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-20 10:30:44,338 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-20 10:30:44,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-20 10:30:44,343 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-20 10:30:44,345 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 10:30:44,345 INFO L85 PathProgramCache]: Analyzing trace with hash 925800, now seen corresponding path program 1 times [2022-11-20 10:30:44,345 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 10:30:44,346 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1323641559] [2022-11-20 10:30:44,346 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 10:30:44,346 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 10:30:44,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-20 10:30:44,353 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-20 10:30:44,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-20 10:30:44,359 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-20 10:30:44,432 INFO L210 LassoAnalysis]: Preferences: [2022-11-20 10:30:44,433 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-11-20 10:30:44,433 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-11-20 10:30:44,433 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-11-20 10:30:44,433 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2022-11-20 10:30:44,434 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-20 10:30:44,434 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-11-20 10:30:44,434 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-11-20 10:30:44,434 INFO L133 ssoRankerPreferences]: Filename of dumped script: not-05-false.c_Iteration1_Loop [2022-11-20 10:30:44,434 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-11-20 10:30:44,435 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-11-20 10:30:44,455 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-20 10:30:44,468 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-20 10:30:44,514 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-11-20 10:30:44,515 INFO L404 LassoAnalysis]: Checking for nontermination... [2022-11-20 10:30:44,517 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-20 10:30:44,517 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47175c1a-53f8-478c-932e-6c793bc8e5e5/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 10:30:44,521 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47175c1a-53f8-478c-932e-6c793bc8e5e5/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-20 10:30:44,543 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47175c1a-53f8-478c-932e-6c793bc8e5e5/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Waiting until timeout for monitored process [2022-11-20 10:30:44,545 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-11-20 10:30:44,546 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-11-20 10:30:44,580 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2022-11-20 10:30:44,580 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_~x~0#1=0} Honda state: {ULTIMATE.start_main_~x~0#1=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2022-11-20 10:30:44,591 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47175c1a-53f8-478c-932e-6c793bc8e5e5/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Forceful destruction successful, exit code 0 [2022-11-20 10:30:44,591 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-20 10:30:44,592 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47175c1a-53f8-478c-932e-6c793bc8e5e5/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 10:30:44,594 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47175c1a-53f8-478c-932e-6c793bc8e5e5/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-20 10:30:44,603 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-11-20 10:30:44,604 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-11-20 10:30:44,617 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47175c1a-53f8-478c-932e-6c793bc8e5e5/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Waiting until timeout for monitored process [2022-11-20 10:30:44,650 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47175c1a-53f8-478c-932e-6c793bc8e5e5/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Forceful destruction successful, exit code 0 [2022-11-20 10:30:44,650 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-20 10:30:44,650 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47175c1a-53f8-478c-932e-6c793bc8e5e5/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 10:30:44,652 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47175c1a-53f8-478c-932e-6c793bc8e5e5/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-20 10:30:44,657 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47175c1a-53f8-478c-932e-6c793bc8e5e5/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Waiting until timeout for monitored process [2022-11-20 10:30:44,657 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2022-11-20 10:30:44,658 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-11-20 10:30:44,709 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2022-11-20 10:30:44,724 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47175c1a-53f8-478c-932e-6c793bc8e5e5/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Forceful destruction successful, exit code 0 [2022-11-20 10:30:44,724 INFO L210 LassoAnalysis]: Preferences: [2022-11-20 10:30:44,724 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-11-20 10:30:44,724 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-11-20 10:30:44,724 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-11-20 10:30:44,725 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2022-11-20 10:30:44,725 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-20 10:30:44,725 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-11-20 10:30:44,725 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-11-20 10:30:44,725 INFO L133 ssoRankerPreferences]: Filename of dumped script: not-05-false.c_Iteration1_Loop [2022-11-20 10:30:44,725 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-11-20 10:30:44,726 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-11-20 10:30:44,727 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-20 10:30:44,742 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-20 10:30:44,783 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-11-20 10:30:44,788 INFO L490 LassoAnalysis]: Using template 'affine'. [2022-11-20 10:30:44,790 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-20 10:30:44,790 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47175c1a-53f8-478c-932e-6c793bc8e5e5/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 10:30:44,791 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47175c1a-53f8-478c-932e-6c793bc8e5e5/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-20 10:30:44,800 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47175c1a-53f8-478c-932e-6c793bc8e5e5/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Waiting until timeout for monitored process [2022-11-20 10:30:44,801 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2022-11-20 10:30:44,814 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-20 10:30:44,815 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-11-20 10:30:44,815 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-20 10:30:44,815 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-20 10:30:44,816 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-20 10:30:44,818 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-11-20 10:30:44,818 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-11-20 10:30:44,835 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-11-20 10:30:44,845 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47175c1a-53f8-478c-932e-6c793bc8e5e5/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Forceful destruction successful, exit code 0 [2022-11-20 10:30:44,845 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-20 10:30:44,846 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47175c1a-53f8-478c-932e-6c793bc8e5e5/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 10:30:44,847 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47175c1a-53f8-478c-932e-6c793bc8e5e5/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-20 10:30:44,861 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47175c1a-53f8-478c-932e-6c793bc8e5e5/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Waiting until timeout for monitored process [2022-11-20 10:30:44,862 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2022-11-20 10:30:44,878 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-20 10:30:44,878 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-11-20 10:30:44,878 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-20 10:30:44,878 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-20 10:30:44,879 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-20 10:30:44,886 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-11-20 10:30:44,886 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-11-20 10:30:44,904 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2022-11-20 10:30:44,916 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2022-11-20 10:30:44,916 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 1 variables to zero. [2022-11-20 10:30:44,918 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-20 10:30:44,918 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47175c1a-53f8-478c-932e-6c793bc8e5e5/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 10:30:44,920 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47175c1a-53f8-478c-932e-6c793bc8e5e5/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-20 10:30:44,921 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47175c1a-53f8-478c-932e-6c793bc8e5e5/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Waiting until timeout for monitored process [2022-11-20 10:30:44,922 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2022-11-20 10:30:44,923 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2022-11-20 10:30:44,923 INFO L513 LassoAnalysis]: Proved termination. [2022-11-20 10:30:44,923 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~y~0#1) = 1*ULTIMATE.start_main_~y~0#1 Supporting invariants [] [2022-11-20 10:30:44,927 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47175c1a-53f8-478c-932e-6c793bc8e5e5/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Ended with exit code 0 [2022-11-20 10:30:44,932 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2022-11-20 10:30:44,980 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 10:30:44,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:30:44,998 INFO L263 TraceCheckSpWp]: Trace formula consists of 5 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-20 10:30:44,999 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 10:30:45,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:30:45,012 WARN L261 TraceCheckSpWp]: Trace formula consists of 6 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-20 10:30:45,013 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 10:30:45,034 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 10:30:45,068 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates [2022-11-20 10:30:45,070 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand has 8 states, 7 states have (on average 1.4285714285714286) internal successors, (10), 7 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 3 states, 3 states have (on average 1.3333333333333333) internal successors, (4), 3 states have internal predecessors, (4), 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) [2022-11-20 10:30:45,117 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand has 8 states, 7 states have (on average 1.4285714285714286) internal successors, (10), 7 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0). Second operand has 3 states, 3 states have (on average 1.3333333333333333) internal successors, (4), 3 states have internal predecessors, (4), 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) Result 24 states and 31 transitions. Complement of second has 8 states. [2022-11-20 10:30:45,119 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 5 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2022-11-20 10:30:45,124 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 1.3333333333333333) internal successors, (4), 3 states have internal predecessors, (4), 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) [2022-11-20 10:30:45,125 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 12 transitions. [2022-11-20 10:30:45,127 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 12 transitions. Stem has 2 letters. Loop has 2 letters. [2022-11-20 10:30:45,127 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-11-20 10:30:45,127 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 12 transitions. Stem has 4 letters. Loop has 2 letters. [2022-11-20 10:30:45,128 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-11-20 10:30:45,128 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 12 transitions. Stem has 2 letters. Loop has 4 letters. [2022-11-20 10:30:45,128 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-11-20 10:30:45,129 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 24 states and 31 transitions. [2022-11-20 10:30:45,132 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2022-11-20 10:30:45,135 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 24 states to 8 states and 11 transitions. [2022-11-20 10:30:45,137 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 5 [2022-11-20 10:30:45,137 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 6 [2022-11-20 10:30:45,138 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 11 transitions. [2022-11-20 10:30:45,138 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2022-11-20 10:30:45,138 INFO L218 hiAutomatonCegarLoop]: Abstraction has 8 states and 11 transitions. [2022-11-20 10:30:45,157 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8 states and 11 transitions. [2022-11-20 10:30:45,164 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8 to 8. [2022-11-20 10:30:45,165 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8 states, 8 states have (on average 1.375) internal successors, (11), 7 states have internal predecessors, (11), 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) [2022-11-20 10:30:45,165 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 11 transitions. [2022-11-20 10:30:45,166 INFO L240 hiAutomatonCegarLoop]: Abstraction has 8 states and 11 transitions. [2022-11-20 10:30:45,167 INFO L428 stractBuchiCegarLoop]: Abstraction has 8 states and 11 transitions. [2022-11-20 10:30:45,167 INFO L335 stractBuchiCegarLoop]: ======== Iteration 2 ============ [2022-11-20 10:30:45,167 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 8 states and 11 transitions. [2022-11-20 10:30:45,168 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2022-11-20 10:30:45,168 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-11-20 10:30:45,168 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-11-20 10:30:45,168 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1] [2022-11-20 10:30:45,168 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1] [2022-11-20 10:30:45,169 INFO L748 eck$LassoCheckResult]: Stem: 75#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true; 76#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~nondet2#1, main_~a~0#1, main_~x~0#1, main_~y~0#1;havoc main_~a~0#1;havoc main_~x~0#1;havoc main_~y~0#1;main_~x~0#1 := main_#t~nondet0#1;havoc main_#t~nondet0#1;main_~y~0#1 := main_#t~nondet1#1;havoc main_#t~nondet1#1;main_~a~0#1 := 0; 78#L18-2 assume !!(main_~y~0#1 > 0); 71#L18 assume main_~x~0#1 < 0;main_#t~nondet2#1 := ~bitwiseComplement(main_~x~0#1);assume main_#t~nondet2#1 != main_~x~0#1;assume main_~x~0#1 >= 0 || main_#t~nondet2#1 > 0;main_~y~0#1 := main_#t~nondet2#1;havoc main_#t~nondet2#1; 72#L18-2 [2022-11-20 10:30:45,169 INFO L750 eck$LassoCheckResult]: Loop: 72#L18-2 assume !!(main_~y~0#1 > 0); 77#L18 assume !(main_~x~0#1 < 0);main_~y~0#1 := main_~y~0#1 - 1; 72#L18-2 [2022-11-20 10:30:45,170 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 10:30:45,170 INFO L85 PathProgramCache]: Analyzing trace with hash 925798, now seen corresponding path program 1 times [2022-11-20 10:30:45,170 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 10:30:45,170 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [787538433] [2022-11-20 10:30:45,170 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 10:30:45,171 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 10:30:45,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-20 10:30:45,177 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-20 10:30:45,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-20 10:30:45,185 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-20 10:30:45,187 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 10:30:45,188 INFO L85 PathProgramCache]: Analyzing trace with hash 1318, now seen corresponding path program 2 times [2022-11-20 10:30:45,188 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 10:30:45,188 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [85002717] [2022-11-20 10:30:45,189 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 10:30:45,189 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 10:30:45,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-20 10:30:45,199 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-20 10:30:45,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-20 10:30:45,216 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-20 10:30:45,217 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 10:30:45,217 INFO L85 PathProgramCache]: Analyzing trace with hash 889692235, now seen corresponding path program 1 times [2022-11-20 10:30:45,217 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 10:30:45,218 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [848136193] [2022-11-20 10:30:45,218 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 10:30:45,218 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 10:30:45,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:30:45,263 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47175c1a-53f8-478c-932e-6c793bc8e5e5/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Forceful destruction successful, exit code 0 [2022-11-20 10:30:45,296 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 10:30:45,297 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 10:30:45,297 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [848136193] [2022-11-20 10:30:45,298 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [848136193] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 10:30:45,298 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 10:30:45,299 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-20 10:30:45,299 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1056278337] [2022-11-20 10:30:45,300 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 10:30:45,348 INFO L210 LassoAnalysis]: Preferences: [2022-11-20 10:30:45,348 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-11-20 10:30:45,349 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-11-20 10:30:45,350 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-11-20 10:30:45,351 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2022-11-20 10:30:45,351 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-20 10:30:45,352 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-11-20 10:30:45,352 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-11-20 10:30:45,352 INFO L133 ssoRankerPreferences]: Filename of dumped script: not-05-false.c_Iteration2_Loop [2022-11-20 10:30:45,352 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-11-20 10:30:45,352 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-11-20 10:30:45,353 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-20 10:30:45,365 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-20 10:30:45,391 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-11-20 10:30:45,391 INFO L404 LassoAnalysis]: Checking for nontermination... [2022-11-20 10:30:45,391 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-20 10:30:45,392 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47175c1a-53f8-478c-932e-6c793bc8e5e5/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 10:30:45,393 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47175c1a-53f8-478c-932e-6c793bc8e5e5/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-20 10:30:45,402 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-11-20 10:30:45,402 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-11-20 10:30:45,414 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47175c1a-53f8-478c-932e-6c793bc8e5e5/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Waiting until timeout for monitored process [2022-11-20 10:30:45,423 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47175c1a-53f8-478c-932e-6c793bc8e5e5/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Forceful destruction successful, exit code 0 [2022-11-20 10:30:45,424 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-20 10:30:45,424 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47175c1a-53f8-478c-932e-6c793bc8e5e5/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 10:30:45,425 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47175c1a-53f8-478c-932e-6c793bc8e5e5/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-20 10:30:45,430 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47175c1a-53f8-478c-932e-6c793bc8e5e5/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Waiting until timeout for monitored process [2022-11-20 10:30:45,431 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2022-11-20 10:30:45,431 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-11-20 10:30:45,473 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2022-11-20 10:30:45,482 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47175c1a-53f8-478c-932e-6c793bc8e5e5/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Forceful destruction successful, exit code 0 [2022-11-20 10:30:45,482 INFO L210 LassoAnalysis]: Preferences: [2022-11-20 10:30:45,482 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-11-20 10:30:45,483 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-11-20 10:30:45,483 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-11-20 10:30:45,483 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2022-11-20 10:30:45,483 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-20 10:30:45,483 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-11-20 10:30:45,483 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-11-20 10:30:45,483 INFO L133 ssoRankerPreferences]: Filename of dumped script: not-05-false.c_Iteration2_Loop [2022-11-20 10:30:45,484 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-11-20 10:30:45,484 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-11-20 10:30:45,485 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-20 10:30:45,499 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-20 10:30:45,540 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-11-20 10:30:45,541 INFO L490 LassoAnalysis]: Using template 'affine'. [2022-11-20 10:30:45,541 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-20 10:30:45,541 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47175c1a-53f8-478c-932e-6c793bc8e5e5/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 10:30:45,545 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47175c1a-53f8-478c-932e-6c793bc8e5e5/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-20 10:30:45,560 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2022-11-20 10:30:45,573 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47175c1a-53f8-478c-932e-6c793bc8e5e5/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Waiting until timeout for monitored process [2022-11-20 10:30:45,575 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-20 10:30:45,575 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-11-20 10:30:45,576 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-20 10:30:45,576 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-20 10:30:45,576 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-20 10:30:45,578 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-11-20 10:30:45,578 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-11-20 10:30:45,597 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2022-11-20 10:30:45,601 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2022-11-20 10:30:45,601 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 1 variables to zero. [2022-11-20 10:30:45,601 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-20 10:30:45,601 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47175c1a-53f8-478c-932e-6c793bc8e5e5/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 10:30:45,603 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47175c1a-53f8-478c-932e-6c793bc8e5e5/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-20 10:30:45,613 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2022-11-20 10:30:45,613 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2022-11-20 10:30:45,613 INFO L513 LassoAnalysis]: Proved termination. [2022-11-20 10:30:45,614 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~y~0#1) = 1*ULTIMATE.start_main_~y~0#1 Supporting invariants [] [2022-11-20 10:30:45,616 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47175c1a-53f8-478c-932e-6c793bc8e5e5/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Waiting until timeout for monitored process [2022-11-20 10:30:45,624 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47175c1a-53f8-478c-932e-6c793bc8e5e5/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Forceful destruction successful, exit code 0 [2022-11-20 10:30:45,625 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2022-11-20 10:30:45,651 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 10:30:45,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:30:45,664 INFO L263 TraceCheckSpWp]: Trace formula consists of 9 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-20 10:30:45,665 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 10:30:45,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:30:45,684 WARN L261 TraceCheckSpWp]: Trace formula consists of 6 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-20 10:30:45,685 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 10:30:45,720 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 10:30:45,721 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates [2022-11-20 10:30:45,721 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 8 states and 11 transitions. cyclomatic complexity: 5 Second operand has 3 states, 3 states have (on average 2.0) internal successors, (6), 3 states have internal predecessors, (6), 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) [2022-11-20 10:30:45,744 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 8 states and 11 transitions. cyclomatic complexity: 5. Second operand has 3 states, 3 states have (on average 2.0) internal successors, (6), 3 states have internal predecessors, (6), 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) Result 12 states and 17 transitions. Complement of second has 5 states. [2022-11-20 10:30:45,745 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 3 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2022-11-20 10:30:45,746 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 2.0) internal successors, (6), 3 states have internal predecessors, (6), 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) [2022-11-20 10:30:45,747 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 7 transitions. [2022-11-20 10:30:45,747 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 7 transitions. Stem has 4 letters. Loop has 2 letters. [2022-11-20 10:30:45,748 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-11-20 10:30:45,749 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 7 transitions. Stem has 6 letters. Loop has 2 letters. [2022-11-20 10:30:45,749 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-11-20 10:30:45,749 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 7 transitions. Stem has 4 letters. Loop has 4 letters. [2022-11-20 10:30:45,750 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-11-20 10:30:45,750 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 12 states and 17 transitions. [2022-11-20 10:30:45,751 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2022-11-20 10:30:45,752 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 12 states to 12 states and 17 transitions. [2022-11-20 10:30:45,753 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 7 [2022-11-20 10:30:45,753 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 8 [2022-11-20 10:30:45,753 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 17 transitions. [2022-11-20 10:30:45,753 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2022-11-20 10:30:45,754 INFO L218 hiAutomatonCegarLoop]: Abstraction has 12 states and 17 transitions. [2022-11-20 10:30:45,754 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12 states and 17 transitions. [2022-11-20 10:30:45,755 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12 to 12. [2022-11-20 10:30:45,756 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12 states, 12 states have (on average 1.4166666666666667) internal successors, (17), 11 states have internal predecessors, (17), 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) [2022-11-20 10:30:45,757 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 17 transitions. [2022-11-20 10:30:45,757 INFO L240 hiAutomatonCegarLoop]: Abstraction has 12 states and 17 transitions. [2022-11-20 10:30:45,758 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 10:30:45,761 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 10:30:45,761 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 10:30:45,763 INFO L87 Difference]: Start difference. First operand 12 states and 17 transitions. Second operand has 3 states, 2 states have (on average 3.0) internal successors, (6), 3 states have internal predecessors, (6), 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) [2022-11-20 10:30:45,780 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 10:30:45,780 INFO L93 Difference]: Finished difference Result 11 states and 13 transitions. [2022-11-20 10:30:45,780 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 11 states and 13 transitions. [2022-11-20 10:30:45,781 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2022-11-20 10:30:45,782 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 11 states to 10 states and 12 transitions. [2022-11-20 10:30:45,782 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 8 [2022-11-20 10:30:45,782 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 8 [2022-11-20 10:30:45,782 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 12 transitions. [2022-11-20 10:30:45,782 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2022-11-20 10:30:45,783 INFO L218 hiAutomatonCegarLoop]: Abstraction has 10 states and 12 transitions. [2022-11-20 10:30:45,783 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10 states and 12 transitions. [2022-11-20 10:30:45,783 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10 to 7. [2022-11-20 10:30:45,784 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7 states, 7 states have (on average 1.2857142857142858) internal successors, (9), 6 states have internal predecessors, (9), 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) [2022-11-20 10:30:45,784 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 9 transitions. [2022-11-20 10:30:45,784 INFO L240 hiAutomatonCegarLoop]: Abstraction has 7 states and 9 transitions. [2022-11-20 10:30:45,785 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 10:30:45,786 INFO L428 stractBuchiCegarLoop]: Abstraction has 7 states and 9 transitions. [2022-11-20 10:30:45,786 INFO L335 stractBuchiCegarLoop]: ======== Iteration 3 ============ [2022-11-20 10:30:45,786 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 7 states and 9 transitions. [2022-11-20 10:30:45,787 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2022-11-20 10:30:45,787 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-11-20 10:30:45,787 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-11-20 10:30:45,787 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1] [2022-11-20 10:30:45,787 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1] [2022-11-20 10:30:45,788 INFO L748 eck$LassoCheckResult]: Stem: 157#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true; 158#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~nondet2#1, main_~a~0#1, main_~x~0#1, main_~y~0#1;havoc main_~a~0#1;havoc main_~x~0#1;havoc main_~y~0#1;main_~x~0#1 := main_#t~nondet0#1;havoc main_#t~nondet0#1;main_~y~0#1 := main_#t~nondet1#1;havoc main_#t~nondet1#1;main_~a~0#1 := 0; 159#L18-2 assume !!(main_~y~0#1 > 0); 153#L18 [2022-11-20 10:30:45,788 INFO L750 eck$LassoCheckResult]: Loop: 153#L18 assume main_~x~0#1 < 0;main_#t~nondet2#1 := ~bitwiseComplement(main_~x~0#1);assume main_#t~nondet2#1 != main_~x~0#1;assume main_~x~0#1 >= 0 || main_#t~nondet2#1 > 0;main_~y~0#1 := main_#t~nondet2#1;havoc main_#t~nondet2#1; 154#L18-2 assume !!(main_~y~0#1 > 0); 153#L18 [2022-11-20 10:30:45,789 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 10:30:45,789 INFO L85 PathProgramCache]: Analyzing trace with hash 29864, now seen corresponding path program 1 times [2022-11-20 10:30:45,789 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 10:30:45,789 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [880823339] [2022-11-20 10:30:45,790 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 10:30:45,790 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 10:30:45,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-20 10:30:45,794 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-20 10:30:45,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-20 10:30:45,798 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-20 10:30:45,798 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 10:30:45,799 INFO L85 PathProgramCache]: Analyzing trace with hash 1406, now seen corresponding path program 1 times [2022-11-20 10:30:45,799 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 10:30:45,799 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1936406156] [2022-11-20 10:30:45,799 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 10:30:45,800 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 10:30:45,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-20 10:30:45,805 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-20 10:30:45,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-20 10:30:45,810 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-20 10:30:45,811 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 10:30:45,811 INFO L85 PathProgramCache]: Analyzing trace with hash 28699749, now seen corresponding path program 2 times [2022-11-20 10:30:45,812 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 10:30:45,812 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1742173777] [2022-11-20 10:30:45,812 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 10:30:45,812 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 10:30:45,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-20 10:30:45,823 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-20 10:30:45,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-20 10:30:45,834 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-20 10:30:45,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-20 10:30:45,904 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-20 10:30:45,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-20 10:30:45,924 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 20.11 10:30:45 BoogieIcfgContainer [2022-11-20 10:30:45,925 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2022-11-20 10:30:45,925 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-20 10:30:45,925 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-20 10:30:45,926 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-20 10:30:45,926 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 10:30:44" (3/4) ... [2022-11-20 10:30:45,930 INFO L140 WitnessPrinter]: No result that supports witness generation found [2022-11-20 10:30:45,930 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-20 10:30:45,931 INFO L158 Benchmark]: Toolchain (without parser) took 2443.66ms. Allocated memory was 151.0MB in the beginning and 186.6MB in the end (delta: 35.7MB). Free memory was 119.7MB in the beginning and 136.0MB in the end (delta: -16.2MB). Peak memory consumption was 20.5MB. Max. memory is 16.1GB. [2022-11-20 10:30:45,931 INFO L158 Benchmark]: CDTParser took 0.30ms. Allocated memory is still 151.0MB. Free memory is still 120.0MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-20 10:30:45,932 INFO L158 Benchmark]: CACSL2BoogieTranslator took 204.71ms. Allocated memory is still 151.0MB. Free memory was 119.7MB in the beginning and 110.5MB in the end (delta: 9.2MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2022-11-20 10:30:45,936 INFO L158 Benchmark]: Boogie Procedure Inliner took 31.71ms. Allocated memory is still 151.0MB. Free memory was 110.5MB in the beginning and 109.3MB in the end (delta: 1.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-20 10:30:45,937 INFO L158 Benchmark]: Boogie Preprocessor took 20.87ms. Allocated memory is still 151.0MB. Free memory was 109.3MB in the beginning and 108.4MB in the end (delta: 959.0kB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-20 10:30:45,941 INFO L158 Benchmark]: RCFGBuilder took 284.37ms. Allocated memory is still 151.0MB. Free memory was 108.4MB in the beginning and 99.8MB in the end (delta: 8.6MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2022-11-20 10:30:45,942 INFO L158 Benchmark]: BuchiAutomizer took 1889.44ms. Allocated memory was 151.0MB in the beginning and 186.6MB in the end (delta: 35.7MB). Free memory was 99.3MB in the beginning and 136.0MB in the end (delta: -36.6MB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-20 10:30:45,943 INFO L158 Benchmark]: Witness Printer took 4.69ms. Allocated memory is still 186.6MB. Free memory is still 136.0MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-20 10:30:45,948 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 151.0MB. Free memory is still 120.0MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 204.71ms. Allocated memory is still 151.0MB. Free memory was 119.7MB in the beginning and 110.5MB in the end (delta: 9.2MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 31.71ms. Allocated memory is still 151.0MB. Free memory was 110.5MB in the beginning and 109.3MB in the end (delta: 1.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 20.87ms. Allocated memory is still 151.0MB. Free memory was 109.3MB in the beginning and 108.4MB in the end (delta: 959.0kB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 284.37ms. Allocated memory is still 151.0MB. Free memory was 108.4MB in the beginning and 99.8MB in the end (delta: 8.6MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * BuchiAutomizer took 1889.44ms. Allocated memory was 151.0MB in the beginning and 186.6MB in the end (delta: 35.7MB). Free memory was 99.3MB in the beginning and 136.0MB in the end (delta: -36.6MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 4.69ms. Allocated memory is still 186.6MB. Free memory is still 136.0MB. 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 3 terminating modules (1 trivial, 2 deterministic, 0 nondeterministic) and one module whose termination is unknown.One deterministic module has affine ranking function y and consists of 5 locations. One deterministic module has affine ranking function y and consists of 3 locations. 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 1.8s and 3 iterations. TraceHistogramMax:1. Analysis of lassos took 1.3s. Construction of modules took 0.0s. Büchi inclusion checks took 0.3s. Highest rank in rank-based complementation 3. Minimization of det autom 0. Minimization of nondet autom 3. Automata minimization 0.0s AutomataMinimizationTime, 3 MinimizatonAttempts, 3 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 [2, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 12 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 10 mSDsluCounter, 26 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 8 mSDsCounter, 4 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 17 IncrementalHoareTripleChecker+Invalid, 21 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 4 mSolverCounterUnsat, 18 mSDtfsCounter, 17 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown LassoAnalysisResults: nont1 unkn0 SFLI0 SFLT1 conc0 concLT1 SILN0 SILU0 SILI0 SILT0 lasso0 LassoPreprocessingBenchmarks: Lassos: inital14 mio100 ax100 hnf100 lsp71 ukn100 mio100 lsp100 div100 bol100 ite100 ukn100 eq160 hnf93 smp100 dnf100 smp100 tf113 neg100 sie111 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 46ms VariablesStem: 0 VariablesLoop: 1 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 0 MotzkinApplications: 2 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 1 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 2 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.2s InitialAbstractionConstructionTime: 0.0s - TerminationAnalysisResult: Unable to decide termination Buchi Automizer cannot decide termination for the following lasso because it contains the following overapproximations. Overapproximations C: y = ~x [19] (Reason bitwiseComplement) Lasso Stem: "assume { :begin_inline_ULTIMATE.init } true;" "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~nondet2#1, main_~a~0#1, main_~x~0#1, main_~y~0#1;havoc main_~a~0#1;havoc main_~x~0#1;havoc main_~y~0#1;main_~x~0#1 := main_#t~nondet0#1;havoc main_#t~nondet0#1;main_~y~0#1 := main_#t~nondet1#1;havoc main_#t~nondet1#1;main_~a~0#1 := 0;" "assume !!(main_~y~0#1 > 0);" Loop: "assume main_~x~0#1 < 0;main_#t~nondet2#1 := ~bitwiseComplement(main_~x~0#1);assume main_#t~nondet2#1 != main_~x~0#1;assume main_~x~0#1 >= 0 || main_#t~nondet2#1 > 0;main_~y~0#1 := main_#t~nondet2#1;havoc main_#t~nondet2#1;" "assume !!(main_~y~0#1 > 0);" RESULT: Ultimate could not prove your program: unable to determine termination [2022-11-20 10:30:45,960 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47175c1a-53f8-478c-932e-6c793bc8e5e5/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Ended with exit code 0 [2022-11-20 10:30:46,165 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47175c1a-53f8-478c-932e-6c793bc8e5e5/bin/uautomizer-ug76WZFUDN/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 Using bit-precise analysis No suitable file found in config dir /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47175c1a-53f8-478c-932e-6c793bc8e5e5/bin/uautomizer-ug76WZFUDN/config using search string *Termination*64bit*_Bitvector*.epf No suitable settings file found using Termination*64bit*_Bitvector ERROR: UNSUPPORTED PROPERTY Writing output log to file Ultimate.log Result: UNKNOWN