./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/termination-bwb/or-05.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 2329fc70 Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b11ad0c-f447-4a33-919e-ec255023db04/bin/uautomizer-uyxdKDjOR8/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b11ad0c-f447-4a33-919e-ec255023db04/bin/uautomizer-uyxdKDjOR8/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b11ad0c-f447-4a33-919e-ec255023db04/bin/uautomizer-uyxdKDjOR8/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b11ad0c-f447-4a33-919e-ec255023db04/bin/uautomizer-uyxdKDjOR8/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/termination-bwb/or-05.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b11ad0c-f447-4a33-919e-ec255023db04/bin/uautomizer-uyxdKDjOR8/config/svcomp-Termination-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b11ad0c-f447-4a33-919e-ec255023db04/bin/uautomizer-uyxdKDjOR8 --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 c3769a7b9199e4d3a1d3d7ebad63ad6175b11f31d08bb9cf3238c1849c9b4724 --- 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-2329fc7 [2022-12-13 17:27:49,722 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-13 17:27:49,724 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-13 17:27:49,742 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-13 17:27:49,743 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-13 17:27:49,744 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-13 17:27:49,745 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-13 17:27:49,747 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-13 17:27:49,748 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-13 17:27:49,749 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-13 17:27:49,750 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-13 17:27:49,751 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-13 17:27:49,751 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-13 17:27:49,752 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-13 17:27:49,753 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-13 17:27:49,754 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-13 17:27:49,755 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-13 17:27:49,756 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-13 17:27:49,757 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-13 17:27:49,759 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-13 17:27:49,760 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-13 17:27:49,762 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-13 17:27:49,763 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-13 17:27:49,764 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-13 17:27:49,767 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-13 17:27:49,767 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-13 17:27:49,767 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-13 17:27:49,768 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-13 17:27:49,769 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-13 17:27:49,770 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-13 17:27:49,770 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-13 17:27:49,771 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-13 17:27:49,771 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-13 17:27:49,772 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-13 17:27:49,773 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-13 17:27:49,773 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-13 17:27:49,774 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-13 17:27:49,774 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-13 17:27:49,774 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-13 17:27:49,775 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-13 17:27:49,775 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-13 17:27:49,776 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b11ad0c-f447-4a33-919e-ec255023db04/bin/uautomizer-uyxdKDjOR8/config/svcomp-Termination-64bit-Automizer_Default.epf [2022-12-13 17:27:49,797 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-13 17:27:49,797 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-13 17:27:49,797 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-12-13 17:27:49,798 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-12-13 17:27:49,802 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-12-13 17:27:49,802 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-12-13 17:27:49,802 INFO L138 SettingsManager]: * Use SBE=true [2022-12-13 17:27:49,802 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2022-12-13 17:27:49,803 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2022-12-13 17:27:49,803 INFO L138 SettingsManager]: * Use old map elimination=false [2022-12-13 17:27:49,803 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2022-12-13 17:27:49,803 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2022-12-13 17:27:49,803 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2022-12-13 17:27:49,803 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-13 17:27:49,804 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-12-13 17:27:49,804 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-13 17:27:49,804 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-13 17:27:49,804 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2022-12-13 17:27:49,804 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2022-12-13 17:27:49,804 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2022-12-13 17:27:49,804 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-13 17:27:49,804 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2022-12-13 17:27:49,804 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-13 17:27:49,805 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2022-12-13 17:27:49,805 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-13 17:27:49,805 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-12-13 17:27:49,805 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-13 17:27:49,805 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-12-13 17:27:49,806 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2022-12-13 17:27:49,806 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_6b11ad0c-f447-4a33-919e-ec255023db04/bin/uautomizer-uyxdKDjOR8/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b11ad0c-f447-4a33-919e-ec255023db04/bin/uautomizer-uyxdKDjOR8 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> c3769a7b9199e4d3a1d3d7ebad63ad6175b11f31d08bb9cf3238c1849c9b4724 [2022-12-13 17:27:49,993 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-13 17:27:50,011 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-13 17:27:50,013 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-13 17:27:50,014 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-13 17:27:50,015 INFO L275 PluginConnector]: CDTParser initialized [2022-12-13 17:27:50,016 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b11ad0c-f447-4a33-919e-ec255023db04/bin/uautomizer-uyxdKDjOR8/../../sv-benchmarks/c/termination-bwb/or-05.c [2022-12-13 17:27:52,610 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-13 17:27:52,753 INFO L351 CDTParser]: Found 1 translation units. [2022-12-13 17:27:52,753 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b11ad0c-f447-4a33-919e-ec255023db04/sv-benchmarks/c/termination-bwb/or-05.c [2022-12-13 17:27:52,757 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b11ad0c-f447-4a33-919e-ec255023db04/bin/uautomizer-uyxdKDjOR8/data/305bdada2/26cf231e37b249ca85050dd41c852129/FLAGfcd767b5e [2022-12-13 17:27:52,770 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b11ad0c-f447-4a33-919e-ec255023db04/bin/uautomizer-uyxdKDjOR8/data/305bdada2/26cf231e37b249ca85050dd41c852129 [2022-12-13 17:27:52,772 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-13 17:27:52,773 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-12-13 17:27:52,775 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-13 17:27:52,775 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-13 17:27:52,778 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-13 17:27:52,779 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.12 05:27:52" (1/1) ... [2022-12-13 17:27:52,780 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@71d27c7e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 05:27:52, skipping insertion in model container [2022-12-13 17:27:52,780 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.12 05:27:52" (1/1) ... [2022-12-13 17:27:52,787 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-13 17:27:52,799 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-13 17:27:52,911 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-13 17:27:52,916 INFO L203 MainTranslator]: Completed pre-run [2022-12-13 17:27:52,929 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-13 17:27:52,941 INFO L208 MainTranslator]: Completed translation [2022-12-13 17:27:52,942 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 05:27:52 WrapperNode [2022-12-13 17:27:52,942 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-13 17:27:52,943 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-13 17:27:52,943 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-13 17:27:52,943 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-13 17:27:52,950 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 05:27:52" (1/1) ... [2022-12-13 17:27:52,955 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 05:27:52" (1/1) ... [2022-12-13 17:27:52,972 INFO L138 Inliner]: procedures = 4, calls = 2, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 27 [2022-12-13 17:27:52,972 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-13 17:27:52,973 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-13 17:27:52,973 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-13 17:27:52,973 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-13 17:27:52,982 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 05:27:52" (1/1) ... [2022-12-13 17:27:52,982 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 05:27:52" (1/1) ... [2022-12-13 17:27:52,983 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 05:27:52" (1/1) ... [2022-12-13 17:27:52,983 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 05:27:52" (1/1) ... [2022-12-13 17:27:52,986 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 05:27:52" (1/1) ... [2022-12-13 17:27:52,989 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 05:27:52" (1/1) ... [2022-12-13 17:27:52,990 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 05:27:52" (1/1) ... [2022-12-13 17:27:52,991 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 05:27:52" (1/1) ... [2022-12-13 17:27:52,992 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-13 17:27:52,993 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-13 17:27:52,993 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-13 17:27:52,993 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-13 17:27:52,994 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 05:27:52" (1/1) ... [2022-12-13 17:27:53,000 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-12-13 17:27:53,011 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b11ad0c-f447-4a33-919e-ec255023db04/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 17:27:53,024 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b11ad0c-f447-4a33-919e-ec255023db04/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-12-13 17:27:53,026 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b11ad0c-f447-4a33-919e-ec255023db04/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2022-12-13 17:27:53,065 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-13 17:27:53,065 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-13 17:27:53,122 INFO L235 CfgBuilder]: Building ICFG [2022-12-13 17:27:53,123 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-13 17:27:53,198 INFO L276 CfgBuilder]: Performing block encoding [2022-12-13 17:27:53,213 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-13 17:27:53,213 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2022-12-13 17:27:53,215 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 05:27:53 BoogieIcfgContainer [2022-12-13 17:27:53,215 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-13 17:27:53,216 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2022-12-13 17:27:53,216 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2022-12-13 17:27:53,220 INFO L275 PluginConnector]: BuchiAutomizer initialized [2022-12-13 17:27:53,220 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-12-13 17:27:53,221 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 13.12 05:27:52" (1/3) ... [2022-12-13 17:27:53,222 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@6d5d587c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 13.12 05:27:53, skipping insertion in model container [2022-12-13 17:27:53,222 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-12-13 17:27:53,222 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 05:27:52" (2/3) ... [2022-12-13 17:27:53,222 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@6d5d587c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 13.12 05:27:53, skipping insertion in model container [2022-12-13 17:27:53,222 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-12-13 17:27:53,223 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 05:27:53" (3/3) ... [2022-12-13 17:27:53,224 INFO L332 chiAutomizerObserver]: Analyzing ICFG or-05.c [2022-12-13 17:27:53,278 INFO L303 stractBuchiCegarLoop]: Interprodecural is true [2022-12-13 17:27:53,279 INFO L304 stractBuchiCegarLoop]: Hoare is false [2022-12-13 17:27:53,279 INFO L305 stractBuchiCegarLoop]: Compute interpolants for ForwardPredicates [2022-12-13 17:27:53,279 INFO L306 stractBuchiCegarLoop]: Backedges is STRAIGHT_LINE [2022-12-13 17:27:53,279 INFO L307 stractBuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2022-12-13 17:27:53,279 INFO L308 stractBuchiCegarLoop]: Difference is false [2022-12-13 17:27:53,279 INFO L309 stractBuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2022-12-13 17:27:53,280 INFO L313 stractBuchiCegarLoop]: ======== Iteration 0 == of CEGAR loop == BuchiAutomatonCegarLoop ======== [2022-12-13 17:27:53,284 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 11 states, 10 states have (on average 1.5) internal successors, (15), 10 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 17:27:53,301 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 5 [2022-12-13 17:27:53,301 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-12-13 17:27:53,302 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-12-13 17:27:53,306 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1] [2022-12-13 17:27:53,307 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1] [2022-12-13 17:27:53,307 INFO L335 stractBuchiCegarLoop]: ======== Iteration 1 ============ [2022-12-13 17:27:53,307 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 11 states, 10 states have (on average 1.5) internal successors, (15), 10 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 17:27:53,308 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 5 [2022-12-13 17:27:53,308 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-12-13 17:27:53,309 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-12-13 17:27:53,309 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1] [2022-12-13 17:27:53,309 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1] [2022-12-13 17:27:53,316 INFO L748 eck$LassoCheckResult]: Stem: 7#$Ultimate##0true assume { :begin_inline_ULTIMATE.init } true; 10#L-1true assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet0#1, main_#t~nondet1#1, main_~y~0#1, main_~x~0#1;havoc main_~y~0#1;havoc main_~x~0#1;main_~x~0#1 := main_#t~nondet0#1;havoc main_#t~nondet0#1;main_~y~0#1 := 0; 5#L20-2true [2022-12-13 17:27:53,316 INFO L750 eck$LassoCheckResult]: Loop: 5#L20-2true assume !!(main_~x~0#1 > 0); 11#L20true assume !(1 == main_~y~0#1);main_~y~0#1 := 1;main_~x~0#1 := main_~x~0#1 - main_~y~0#1; 5#L20-2true [2022-12-13 17:27:53,322 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 17:27:53,322 INFO L85 PathProgramCache]: Analyzing trace with hash 963, now seen corresponding path program 1 times [2022-12-13 17:27:53,330 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 17:27:53,330 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [515922351] [2022-12-13 17:27:53,330 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 17:27:53,331 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 17:27:53,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 17:27:53,386 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-12-13 17:27:53,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 17:27:53,400 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-12-13 17:27:53,402 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 17:27:53,402 INFO L85 PathProgramCache]: Analyzing trace with hash 1330, now seen corresponding path program 1 times [2022-12-13 17:27:53,403 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 17:27:53,403 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [299300634] [2022-12-13 17:27:53,403 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 17:27:53,403 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 17:27:53,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 17:27:53,409 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-12-13 17:27:53,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 17:27:53,413 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-12-13 17:27:53,415 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 17:27:53,415 INFO L85 PathProgramCache]: Analyzing trace with hash 925812, now seen corresponding path program 1 times [2022-12-13 17:27:53,415 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 17:27:53,415 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [151248252] [2022-12-13 17:27:53,415 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 17:27:53,416 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 17:27:53,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 17:27:53,420 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-12-13 17:27:53,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 17:27:53,425 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-12-13 17:27:53,486 INFO L210 LassoAnalysis]: Preferences: [2022-12-13 17:27:53,486 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-12-13 17:27:53,487 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-12-13 17:27:53,487 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-12-13 17:27:53,487 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2022-12-13 17:27:53,487 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-12-13 17:27:53,487 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-12-13 17:27:53,487 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-12-13 17:27:53,487 INFO L133 ssoRankerPreferences]: Filename of dumped script: or-05.c_Iteration1_Loop [2022-12-13 17:27:53,487 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-12-13 17:27:53,488 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-12-13 17:27:53,499 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-12-13 17:27:53,563 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-12-13 17:27:53,564 INFO L404 LassoAnalysis]: Checking for nontermination... [2022-12-13 17:27:53,565 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-12-13 17:27:53,565 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b11ad0c-f447-4a33-919e-ec255023db04/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 17:27:53,566 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b11ad0c-f447-4a33-919e-ec255023db04/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-12-13 17:27:53,567 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b11ad0c-f447-4a33-919e-ec255023db04/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Waiting until timeout for monitored process [2022-12-13 17:27:53,569 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-12-13 17:27:53,569 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-12-13 17:27:53,586 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b11ad0c-f447-4a33-919e-ec255023db04/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Forceful destruction successful, exit code 0 [2022-12-13 17:27:53,586 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-12-13 17:27:53,586 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b11ad0c-f447-4a33-919e-ec255023db04/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 17:27:53,587 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b11ad0c-f447-4a33-919e-ec255023db04/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-12-13 17:27:53,588 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b11ad0c-f447-4a33-919e-ec255023db04/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Waiting until timeout for monitored process [2022-12-13 17:27:53,589 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2022-12-13 17:27:53,590 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-12-13 17:27:53,634 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2022-12-13 17:27:53,638 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b11ad0c-f447-4a33-919e-ec255023db04/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Ended with exit code 0 [2022-12-13 17:27:53,638 INFO L210 LassoAnalysis]: Preferences: [2022-12-13 17:27:53,638 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-12-13 17:27:53,638 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-12-13 17:27:53,638 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-12-13 17:27:53,638 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2022-12-13 17:27:53,638 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-12-13 17:27:53,639 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-12-13 17:27:53,639 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-12-13 17:27:53,639 INFO L133 ssoRankerPreferences]: Filename of dumped script: or-05.c_Iteration1_Loop [2022-12-13 17:27:53,639 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-12-13 17:27:53,639 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-12-13 17:27:53,640 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-12-13 17:27:53,687 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-12-13 17:27:53,691 INFO L490 LassoAnalysis]: Using template 'affine'. [2022-12-13 17:27:53,693 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-12-13 17:27:53,693 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b11ad0c-f447-4a33-919e-ec255023db04/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 17:27:53,694 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b11ad0c-f447-4a33-919e-ec255023db04/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-12-13 17:27:53,695 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b11ad0c-f447-4a33-919e-ec255023db04/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Waiting until timeout for monitored process [2022-12-13 17:27:53,696 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 [2022-12-13 17:27:53,707 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-12-13 17:27:53,707 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-12-13 17:27:53,707 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-12-13 17:27:53,707 INFO L204 nArgumentSynthesizer]: 2 loop disjuncts [2022-12-13 17:27:53,707 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-12-13 17:27:53,710 INFO L401 nArgumentSynthesizer]: We have 4 Motzkin's Theorem applications. [2022-12-13 17:27:53,711 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-12-13 17:27:53,715 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2022-12-13 17:27:53,722 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2022-12-13 17:27:53,722 INFO L444 ModelExtractionUtils]: 1 out of 4 variables were initially zero. Simplification set additionally 1 variables to zero. [2022-12-13 17:27:53,723 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-12-13 17:27:53,723 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b11ad0c-f447-4a33-919e-ec255023db04/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 17:27:53,760 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b11ad0c-f447-4a33-919e-ec255023db04/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-12-13 17:27:53,761 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b11ad0c-f447-4a33-919e-ec255023db04/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Waiting until timeout for monitored process [2022-12-13 17:27:53,762 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2022-12-13 17:27:53,762 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2022-12-13 17:27:53,763 INFO L513 LassoAnalysis]: Proved termination. [2022-12-13 17:27:53,763 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~x~0#1) = 1*ULTIMATE.start_main_~x~0#1 Supporting invariants [] [2022-12-13 17:27:53,766 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b11ad0c-f447-4a33-919e-ec255023db04/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Ended with exit code 0 [2022-12-13 17:27:53,768 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2022-12-13 17:27:53,783 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 17:27:53,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:27:53,791 INFO L263 TraceCheckSpWp]: Trace formula consists of 5 conjuncts, 2 conjunts are in the unsatisfiable core [2022-12-13 17:27:53,792 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 17:27:53,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:27:53,803 WARN L261 TraceCheckSpWp]: Trace formula consists of 8 conjuncts, 5 conjunts are in the unsatisfiable core [2022-12-13 17:27:53,803 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 17:27:53,817 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 17:27:53,843 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 [2022-12-13 17:27:53,845 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand has 11 states, 10 states have (on average 1.5) internal successors, (15), 10 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 3 states, 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) [2022-12-13 17:27:53,876 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand has 11 states, 10 states have (on average 1.5) internal successors, (15), 10 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0). Second operand has 3 states, 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 33 states and 46 transitions. Complement of second has 8 states. [2022-12-13 17:27:53,877 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 [2022-12-13 17:27:53,881 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) [2022-12-13 17:27:53,881 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 17 transitions. [2022-12-13 17:27:53,882 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 17 transitions. Stem has 2 letters. Loop has 2 letters. [2022-12-13 17:27:53,883 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-12-13 17:27:53,883 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 17 transitions. Stem has 4 letters. Loop has 2 letters. [2022-12-13 17:27:53,883 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-12-13 17:27:53,883 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 17 transitions. Stem has 2 letters. Loop has 4 letters. [2022-12-13 17:27:53,883 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-12-13 17:27:53,884 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 33 states and 46 transitions. [2022-12-13 17:27:53,886 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 5 [2022-12-13 17:27:53,888 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 33 states to 14 states and 21 transitions. [2022-12-13 17:27:53,888 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 11 [2022-12-13 17:27:53,889 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 12 [2022-12-13 17:27:53,889 INFO L73 IsDeterministic]: Start isDeterministic. Operand 14 states and 21 transitions. [2022-12-13 17:27:53,889 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2022-12-13 17:27:53,889 INFO L218 hiAutomatonCegarLoop]: Abstraction has 14 states and 21 transitions. [2022-12-13 17:27:53,901 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14 states and 21 transitions. [2022-12-13 17:27:53,906 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14 to 11. [2022-12-13 17:27:53,906 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11 states, 11 states have (on average 1.4545454545454546) internal successors, (16), 10 states have internal predecessors, (16), 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) [2022-12-13 17:27:53,906 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 16 transitions. [2022-12-13 17:27:53,907 INFO L240 hiAutomatonCegarLoop]: Abstraction has 11 states and 16 transitions. [2022-12-13 17:27:53,907 INFO L428 stractBuchiCegarLoop]: Abstraction has 11 states and 16 transitions. [2022-12-13 17:27:53,907 INFO L335 stractBuchiCegarLoop]: ======== Iteration 2 ============ [2022-12-13 17:27:53,907 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 11 states and 16 transitions. [2022-12-13 17:27:53,908 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 5 [2022-12-13 17:27:53,908 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-12-13 17:27:53,908 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-12-13 17:27:53,908 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1] [2022-12-13 17:27:53,908 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2022-12-13 17:27:53,908 INFO L748 eck$LassoCheckResult]: Stem: 91#$Ultimate##0 assume { :begin_inline_ULTIMATE.init } true; 92#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_~y~0#1, main_~x~0#1;havoc main_~y~0#1;havoc main_~x~0#1;main_~x~0#1 := main_#t~nondet0#1;havoc main_#t~nondet0#1;main_~y~0#1 := 0; 93#L20-2 assume !!(main_~x~0#1 > 0); 87#L20 assume 1 == main_~y~0#1; 88#L21 [2022-12-13 17:27:53,908 INFO L750 eck$LassoCheckResult]: Loop: 88#L21 assume 0 == main_~y~0#1 || main_~y~0#1 == 1 + main_~y~0#1;main_#t~nondet1#1 := 1 + main_~y~0#1; 89#L21-4 main_~x~0#1 := main_#t~nondet1#1;havoc main_#t~nondet1#1;main_~x~0#1 := main_~x~0#1 - main_~y~0#1; 83#L20-2 assume !!(main_~x~0#1 > 0); 84#L20 assume 1 == main_~y~0#1; 88#L21 [2022-12-13 17:27:53,909 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 17:27:53,909 INFO L85 PathProgramCache]: Analyzing trace with hash 925798, now seen corresponding path program 1 times [2022-12-13 17:27:53,909 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 17:27:53,909 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [27549125] [2022-12-13 17:27:53,909 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 17:27:53,910 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 17:27:53,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:27:53,940 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 17:27:53,941 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 17:27:53,941 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [27549125] [2022-12-13 17:27:53,942 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [27549125] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 17:27:53,942 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 17:27:53,942 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-12-13 17:27:53,942 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1445080681] [2022-12-13 17:27:53,943 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 17:27:53,944 INFO L753 eck$LassoCheckResult]: stem already infeasible [2022-12-13 17:27:53,945 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 17:27:53,945 INFO L85 PathProgramCache]: Analyzing trace with hash 1455309, now seen corresponding path program 1 times [2022-12-13 17:27:53,945 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 17:27:53,945 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [486533356] [2022-12-13 17:27:53,946 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 17:27:53,946 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 17:27:53,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:27:53,960 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b11ad0c-f447-4a33-919e-ec255023db04/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Ended with exit code 0 [2022-12-13 17:27:53,973 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 17:27:53,973 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 17:27:53,974 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [486533356] [2022-12-13 17:27:53,974 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [486533356] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 17:27:53,974 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 17:27:53,974 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-12-13 17:27:53,974 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [853271377] [2022-12-13 17:27:53,974 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 17:27:53,975 INFO L765 eck$LassoCheckResult]: loop already infeasible [2022-12-13 17:27:53,975 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 17:27:53,976 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-13 17:27:53,977 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-13 17:27:53,978 INFO L87 Difference]: Start difference. First operand 11 states and 16 transitions. cyclomatic complexity: 7 Second operand has 3 states, 2 states have (on average 2.0) internal successors, (4), 2 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) [2022-12-13 17:27:53,991 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 17:27:53,991 INFO L93 Difference]: Finished difference Result 16 states and 20 transitions. [2022-12-13 17:27:53,991 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 16 states and 20 transitions. [2022-12-13 17:27:53,992 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 8 [2022-12-13 17:27:53,992 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 16 states to 15 states and 19 transitions. [2022-12-13 17:27:53,992 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 12 [2022-12-13 17:27:53,992 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 12 [2022-12-13 17:27:53,992 INFO L73 IsDeterministic]: Start isDeterministic. Operand 15 states and 19 transitions. [2022-12-13 17:27:53,992 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2022-12-13 17:27:53,992 INFO L218 hiAutomatonCegarLoop]: Abstraction has 15 states and 19 transitions. [2022-12-13 17:27:53,992 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15 states and 19 transitions. [2022-12-13 17:27:53,993 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15 to 14. [2022-12-13 17:27:53,993 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14 states, 14 states have (on average 1.2857142857142858) internal successors, (18), 13 states have internal predecessors, (18), 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) [2022-12-13 17:27:53,993 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 18 transitions. [2022-12-13 17:27:53,993 INFO L240 hiAutomatonCegarLoop]: Abstraction has 14 states and 18 transitions. [2022-12-13 17:27:53,994 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-13 17:27:53,994 INFO L428 stractBuchiCegarLoop]: Abstraction has 14 states and 18 transitions. [2022-12-13 17:27:53,994 INFO L335 stractBuchiCegarLoop]: ======== Iteration 3 ============ [2022-12-13 17:27:53,994 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 14 states and 18 transitions. [2022-12-13 17:27:53,995 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 8 [2022-12-13 17:27:53,995 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-12-13 17:27:53,995 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-12-13 17:27:53,995 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [2, 1, 1, 1, 1] [2022-12-13 17:27:53,995 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1] [2022-12-13 17:27:53,995 INFO L748 eck$LassoCheckResult]: Stem: 125#$Ultimate##0 assume { :begin_inline_ULTIMATE.init } true; 126#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet0#1, main_#t~nondet1#1, main_~y~0#1, main_~x~0#1;havoc main_~y~0#1;havoc main_~x~0#1;main_~x~0#1 := main_#t~nondet0#1;havoc main_#t~nondet0#1;main_~y~0#1 := 0; 128#L20-2 assume !!(main_~x~0#1 > 0); 120#L20 assume !(1 == main_~y~0#1);main_~y~0#1 := 1;main_~x~0#1 := main_~x~0#1 - main_~y~0#1; 119#L20-2 assume !!(main_~x~0#1 > 0); 121#L20 assume 1 == main_~y~0#1; 122#L21 [2022-12-13 17:27:53,995 INFO L750 eck$LassoCheckResult]: Loop: 122#L21 assume !(0 == main_~y~0#1 || main_~y~0#1 == 1 + main_~y~0#1); 124#L21-2 assume !(0 == 1 + main_~y~0#1);main_#t~nondet1#1 := ~bitwiseOr(main_~y~0#1, 1 + main_~y~0#1);assume (main_~y~0#1 < 0 || 1 + main_~y~0#1 < 0) || (main_#t~nondet1#1 >= main_~y~0#1 && main_#t~nondet1#1 >= 1 + main_~y~0#1);assume (main_~y~0#1 >= 0 && 1 + main_~y~0#1 >= 0) || main_#t~nondet1#1 < 0;assume (main_~y~0#1 < 0 || 1 + main_~y~0#1 < 0) || main_#t~nondet1#1 <= main_~y~0#1 + (1 + main_~y~0#1); 127#L21-4 main_~x~0#1 := main_#t~nondet1#1;havoc main_#t~nondet1#1;main_~x~0#1 := main_~x~0#1 - main_~y~0#1; 129#L20-2 assume !!(main_~x~0#1 > 0); 130#L20 assume 1 == main_~y~0#1; 122#L21 [2022-12-13 17:27:53,996 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 17:27:53,996 INFO L85 PathProgramCache]: Analyzing trace with hash 889705687, now seen corresponding path program 1 times [2022-12-13 17:27:53,996 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 17:27:53,996 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1638639763] [2022-12-13 17:27:53,996 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 17:27:53,996 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 17:27:54,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 17:27:54,000 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-12-13 17:27:54,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 17:27:54,003 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-12-13 17:27:54,004 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 17:27:54,004 INFO L85 PathProgramCache]: Analyzing trace with hash 46916375, now seen corresponding path program 1 times [2022-12-13 17:27:54,004 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 17:27:54,004 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1233295590] [2022-12-13 17:27:54,004 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 17:27:54,004 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 17:27:54,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 17:27:54,008 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-12-13 17:27:54,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 17:27:54,012 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-12-13 17:27:54,012 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 17:27:54,013 INFO L85 PathProgramCache]: Analyzing trace with hash 179676161, now seen corresponding path program 1 times [2022-12-13 17:27:54,013 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 17:27:54,013 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1016803026] [2022-12-13 17:27:54,013 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 17:27:54,013 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 17:27:54,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 17:27:54,019 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-12-13 17:27:54,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 17:27:54,024 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-12-13 17:27:54,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 17:27:54,098 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-12-13 17:27:54,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 17:27:54,109 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 13.12 05:27:54 BoogieIcfgContainer [2022-12-13 17:27:54,109 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2022-12-13 17:27:54,109 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-12-13 17:27:54,109 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-12-13 17:27:54,110 INFO L275 PluginConnector]: Witness Printer initialized [2022-12-13 17:27:54,110 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 05:27:53" (3/4) ... [2022-12-13 17:27:54,112 INFO L140 WitnessPrinter]: No result that supports witness generation found [2022-12-13 17:27:54,112 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-12-13 17:27:54,113 INFO L158 Benchmark]: Toolchain (without parser) took 1339.16ms. Allocated memory was 111.1MB in the beginning and 134.2MB in the end (delta: 23.1MB). Free memory was 71.8MB in the beginning and 93.5MB in the end (delta: -21.7MB). Peak memory consumption was 4.0MB. Max. memory is 16.1GB. [2022-12-13 17:27:54,113 INFO L158 Benchmark]: CDTParser took 0.12ms. Allocated memory is still 111.1MB. Free memory was 83.0MB in the beginning and 82.9MB in the end (delta: 117.5kB). There was no memory consumed. Max. memory is 16.1GB. [2022-12-13 17:27:54,113 INFO L158 Benchmark]: CACSL2BoogieTranslator took 167.50ms. Allocated memory is still 111.1MB. Free memory was 71.5MB in the beginning and 62.6MB in the end (delta: 8.9MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2022-12-13 17:27:54,114 INFO L158 Benchmark]: Boogie Procedure Inliner took 29.68ms. Allocated memory is still 111.1MB. Free memory was 62.6MB in the beginning and 61.0MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-12-13 17:27:54,114 INFO L158 Benchmark]: Boogie Preprocessor took 19.48ms. Allocated memory is still 111.1MB. Free memory was 61.0MB in the beginning and 60.2MB in the end (delta: 803.7kB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-12-13 17:27:54,114 INFO L158 Benchmark]: RCFGBuilder took 221.78ms. Allocated memory was 111.1MB in the beginning and 134.2MB in the end (delta: 23.1MB). Free memory was 59.9MB in the beginning and 107.8MB in the end (delta: -47.9MB). Peak memory consumption was 12.8MB. Max. memory is 16.1GB. [2022-12-13 17:27:54,115 INFO L158 Benchmark]: BuchiAutomizer took 893.23ms. Allocated memory is still 134.2MB. Free memory was 107.4MB in the beginning and 93.5MB in the end (delta: 13.8MB). Peak memory consumption was 14.3MB. Max. memory is 16.1GB. [2022-12-13 17:27:54,115 INFO L158 Benchmark]: Witness Printer took 2.60ms. Allocated memory is still 134.2MB. Free memory is still 93.5MB. There was no memory consumed. Max. memory is 16.1GB. [2022-12-13 17:27:54,117 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.12ms. Allocated memory is still 111.1MB. Free memory was 83.0MB in the beginning and 82.9MB in the end (delta: 117.5kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 167.50ms. Allocated memory is still 111.1MB. Free memory was 71.5MB in the beginning and 62.6MB in the end (delta: 8.9MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 29.68ms. Allocated memory is still 111.1MB. Free memory was 62.6MB in the beginning and 61.0MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 19.48ms. Allocated memory is still 111.1MB. Free memory was 61.0MB in the beginning and 60.2MB in the end (delta: 803.7kB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 221.78ms. Allocated memory was 111.1MB in the beginning and 134.2MB in the end (delta: 23.1MB). Free memory was 59.9MB in the beginning and 107.8MB in the end (delta: -47.9MB). Peak memory consumption was 12.8MB. Max. memory is 16.1GB. * BuchiAutomizer took 893.23ms. Allocated memory is still 134.2MB. Free memory was 107.4MB in the beginning and 93.5MB in the end (delta: 13.8MB). Peak memory consumption was 14.3MB. Max. memory is 16.1GB. * Witness Printer took 2.60ms. Allocated memory is still 134.2MB. Free memory is still 93.5MB. 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 2 terminating modules (1 trivial, 1 deterministic, 0 nondeterministic) and one module whose termination is unknown.One deterministic module has affine ranking function x and consists of 5 locations. 1 modules have a trivial ranking function, the largest among these consists of 3 locations. The remainder module has 14 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 0.8s and 3 iterations. TraceHistogramMax:2. Analysis of lassos took 0.6s. Construction of modules took 0.0s. Büchi inclusion checks took 0.1s. Highest rank in rank-based complementation 3. Minimization of det autom 0. Minimization of nondet autom 2. Automata minimization 0.0s AutomataMinimizationTime, 2 MinimizatonAttempts, 4 StatesRemovedByMinimization, 2 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 [1, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 17 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 16 mSDsluCounter, 32 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 13 mSDsCounter, 4 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 15 IncrementalHoareTripleChecker+Invalid, 19 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 4 mSolverCounterUnsat, 19 mSDtfsCounter, 15 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown LassoAnalysisResults: nont1 unkn0 SFLI0 SFLT1 conc0 concLT0 SILN0 SILU0 SILI1 SILT0 lasso0 LassoPreprocessingBenchmarks: Lassos: inital17 mio100 ax100 hnf100 lsp100 ukn100 mio100 lsp100 div100 bol100 ite100 ukn100 eq182 hnf93 smp100 dnf172 smp100 tf103 neg96 sie115 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: sat Degree: 0 Time: 71ms VariablesStem: 0 VariablesLoop: 4 DisjunctsStem: 1 DisjunctsLoop: 2 SupportingInvariants: 0 MotzkinApplications: 4 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 0 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 1 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.0s 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: x=y|(y+1) [21] (Reason bitwiseOr) 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_~y~0#1, main_~x~0#1;havoc main_~y~0#1;havoc main_~x~0#1;main_~x~0#1 := main_#t~nondet0#1;havoc main_#t~nondet0#1;main_~y~0#1 := 0;" "assume !!(main_~x~0#1 > 0);" "assume !(1 == main_~y~0#1);main_~y~0#1 := 1;main_~x~0#1 := main_~x~0#1 - main_~y~0#1;" "assume !!(main_~x~0#1 > 0);" "assume 1 == main_~y~0#1;" Loop: "assume !(0 == main_~y~0#1 || main_~y~0#1 == 1 + main_~y~0#1);" "assume !(0 == 1 + main_~y~0#1);main_#t~nondet1#1 := ~bitwiseOr(main_~y~0#1, 1 + main_~y~0#1);assume (main_~y~0#1 < 0 || 1 + main_~y~0#1 < 0) || (main_#t~nondet1#1 >= main_~y~0#1 && main_#t~nondet1#1 >= 1 + main_~y~0#1);assume (main_~y~0#1 >= 0 && 1 + main_~y~0#1 >= 0) || main_#t~nondet1#1 < 0;assume (main_~y~0#1 < 0 || 1 + main_~y~0#1 < 0) || main_#t~nondet1#1 <= main_~y~0#1 + (1 + main_~y~0#1);" "main_~x~0#1 := main_#t~nondet1#1;havoc main_#t~nondet1#1;main_~x~0#1 := main_~x~0#1 - main_~y~0#1;" "assume !!(main_~x~0#1 > 0);" "assume 1 == main_~y~0#1;" RESULT: Ultimate could not prove your program: unable to determine termination [2022-12-13 17:27:54,131 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b11ad0c-f447-4a33-919e-ec255023db04/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Ended with 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_6b11ad0c-f447-4a33-919e-ec255023db04/bin/uautomizer-uyxdKDjOR8/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