./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/termination-bwb/or-02.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_ab44d187-e229-4102-9bea-d1db206d7612/bin/uautomizer-uyxdKDjOR8/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab44d187-e229-4102-9bea-d1db206d7612/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_ab44d187-e229-4102-9bea-d1db206d7612/bin/uautomizer-uyxdKDjOR8/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab44d187-e229-4102-9bea-d1db206d7612/bin/uautomizer-uyxdKDjOR8/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/termination-bwb/or-02.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab44d187-e229-4102-9bea-d1db206d7612/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_ab44d187-e229-4102-9bea-d1db206d7612/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 7598e0946f5292d261b929b388079f7fb794bee1a1e7afaa45add76236cc5a38 --- 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 19:54:53,922 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-13 19:54:53,923 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-13 19:54:53,937 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-13 19:54:53,938 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-13 19:54:53,938 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-13 19:54:53,939 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-13 19:54:53,940 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-13 19:54:53,941 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-13 19:54:53,942 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-13 19:54:53,943 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-13 19:54:53,944 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-13 19:54:53,944 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-13 19:54:53,945 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-13 19:54:53,945 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-13 19:54:53,946 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-13 19:54:53,947 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-13 19:54:53,947 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-13 19:54:53,948 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-13 19:54:53,950 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-13 19:54:53,951 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-13 19:54:53,952 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-13 19:54:53,952 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-13 19:54:53,953 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-13 19:54:53,955 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-13 19:54:53,955 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-13 19:54:53,956 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-13 19:54:53,956 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-13 19:54:53,957 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-13 19:54:53,957 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-13 19:54:53,957 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-13 19:54:53,958 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-13 19:54:53,958 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-13 19:54:53,959 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-13 19:54:53,960 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-13 19:54:53,960 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-13 19:54:53,960 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-13 19:54:53,960 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-13 19:54:53,961 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-13 19:54:53,961 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-13 19:54:53,962 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-13 19:54:53,962 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab44d187-e229-4102-9bea-d1db206d7612/bin/uautomizer-uyxdKDjOR8/config/svcomp-Termination-64bit-Automizer_Default.epf [2022-12-13 19:54:53,978 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-13 19:54:53,978 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-13 19:54:53,978 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-12-13 19:54:53,978 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-12-13 19:54:53,979 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-12-13 19:54:53,979 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-12-13 19:54:53,979 INFO L138 SettingsManager]: * Use SBE=true [2022-12-13 19:54:53,979 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2022-12-13 19:54:53,979 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2022-12-13 19:54:53,980 INFO L138 SettingsManager]: * Use old map elimination=false [2022-12-13 19:54:53,980 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2022-12-13 19:54:53,980 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2022-12-13 19:54:53,980 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2022-12-13 19:54:53,980 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-13 19:54:53,980 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-12-13 19:54:53,980 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-13 19:54:53,980 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-13 19:54:53,980 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2022-12-13 19:54:53,981 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2022-12-13 19:54:53,981 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2022-12-13 19:54:53,981 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-13 19:54:53,981 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2022-12-13 19:54:53,981 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-13 19:54:53,981 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2022-12-13 19:54:53,981 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-13 19:54:53,981 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-12-13 19:54:53,982 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-13 19:54:53,982 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-12-13 19:54:53,982 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2022-12-13 19:54:53,982 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_ab44d187-e229-4102-9bea-d1db206d7612/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab44d187-e229-4102-9bea-d1db206d7612/bin/uautomizer-uyxdKDjOR8 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 7598e0946f5292d261b929b388079f7fb794bee1a1e7afaa45add76236cc5a38 [2022-12-13 19:54:54,170 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-13 19:54:54,190 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-13 19:54:54,192 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-13 19:54:54,193 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-13 19:54:54,194 INFO L275 PluginConnector]: CDTParser initialized [2022-12-13 19:54:54,195 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab44d187-e229-4102-9bea-d1db206d7612/bin/uautomizer-uyxdKDjOR8/../../sv-benchmarks/c/termination-bwb/or-02.c [2022-12-13 19:54:56,880 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-13 19:54:56,989 INFO L351 CDTParser]: Found 1 translation units. [2022-12-13 19:54:56,989 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab44d187-e229-4102-9bea-d1db206d7612/sv-benchmarks/c/termination-bwb/or-02.c [2022-12-13 19:54:56,993 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab44d187-e229-4102-9bea-d1db206d7612/bin/uautomizer-uyxdKDjOR8/data/045762657/bc6d0ec7242f47f388783eb700a4cc2c/FLAG60c6443e2 [2022-12-13 19:54:57,003 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab44d187-e229-4102-9bea-d1db206d7612/bin/uautomizer-uyxdKDjOR8/data/045762657/bc6d0ec7242f47f388783eb700a4cc2c [2022-12-13 19:54:57,005 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-13 19:54:57,006 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-12-13 19:54:57,007 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-13 19:54:57,007 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-13 19:54:57,010 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-13 19:54:57,011 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.12 07:54:57" (1/1) ... [2022-12-13 19:54:57,012 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7cde8abd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 07:54:57, skipping insertion in model container [2022-12-13 19:54:57,012 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.12 07:54:57" (1/1) ... [2022-12-13 19:54:57,017 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-13 19:54:57,026 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-13 19:54:57,124 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-13 19:54:57,128 INFO L203 MainTranslator]: Completed pre-run [2022-12-13 19:54:57,136 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-13 19:54:57,145 INFO L208 MainTranslator]: Completed translation [2022-12-13 19:54:57,146 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 07:54:57 WrapperNode [2022-12-13 19:54:57,146 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-13 19:54:57,147 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-13 19:54:57,147 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-13 19:54:57,147 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-13 19:54:57,152 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 07:54:57" (1/1) ... [2022-12-13 19:54:57,157 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 07:54:57" (1/1) ... [2022-12-13 19:54:57,168 INFO L138 Inliner]: procedures = 4, calls = 2, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 24 [2022-12-13 19:54:57,168 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-13 19:54:57,169 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-13 19:54:57,169 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-13 19:54:57,169 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-13 19:54:57,175 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 07:54:57" (1/1) ... [2022-12-13 19:54:57,175 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 07:54:57" (1/1) ... [2022-12-13 19:54:57,176 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 07:54:57" (1/1) ... [2022-12-13 19:54:57,176 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 07:54:57" (1/1) ... [2022-12-13 19:54:57,178 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 07:54:57" (1/1) ... [2022-12-13 19:54:57,180 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 07:54:57" (1/1) ... [2022-12-13 19:54:57,181 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 07:54:57" (1/1) ... [2022-12-13 19:54:57,181 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 07:54:57" (1/1) ... [2022-12-13 19:54:57,182 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-13 19:54:57,183 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-13 19:54:57,183 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-13 19:54:57,183 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-13 19:54:57,184 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 07:54:57" (1/1) ... [2022-12-13 19:54:57,188 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-12-13 19:54:57,196 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab44d187-e229-4102-9bea-d1db206d7612/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 19:54:57,206 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab44d187-e229-4102-9bea-d1db206d7612/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-12-13 19:54:57,208 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab44d187-e229-4102-9bea-d1db206d7612/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2022-12-13 19:54:57,237 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-13 19:54:57,237 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-13 19:54:57,281 INFO L235 CfgBuilder]: Building ICFG [2022-12-13 19:54:57,282 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-13 19:54:57,340 INFO L276 CfgBuilder]: Performing block encoding [2022-12-13 19:54:57,345 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-13 19:54:57,346 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2022-12-13 19:54:57,347 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 07:54:57 BoogieIcfgContainer [2022-12-13 19:54:57,347 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-13 19:54:57,348 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2022-12-13 19:54:57,348 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2022-12-13 19:54:57,350 INFO L275 PluginConnector]: BuchiAutomizer initialized [2022-12-13 19:54:57,351 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-12-13 19:54:57,351 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 13.12 07:54:57" (1/3) ... [2022-12-13 19:54:57,352 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@24ca70a9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 13.12 07:54:57, skipping insertion in model container [2022-12-13 19:54:57,352 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-12-13 19:54:57,352 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 07:54:57" (2/3) ... [2022-12-13 19:54:57,352 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@24ca70a9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 13.12 07:54:57, skipping insertion in model container [2022-12-13 19:54:57,352 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-12-13 19:54:57,352 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 07:54:57" (3/3) ... [2022-12-13 19:54:57,353 INFO L332 chiAutomizerObserver]: Analyzing ICFG or-02.c [2022-12-13 19:54:57,394 INFO L303 stractBuchiCegarLoop]: Interprodecural is true [2022-12-13 19:54:57,394 INFO L304 stractBuchiCegarLoop]: Hoare is false [2022-12-13 19:54:57,394 INFO L305 stractBuchiCegarLoop]: Compute interpolants for ForwardPredicates [2022-12-13 19:54:57,394 INFO L306 stractBuchiCegarLoop]: Backedges is STRAIGHT_LINE [2022-12-13 19:54:57,395 INFO L307 stractBuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2022-12-13 19:54:57,395 INFO L308 stractBuchiCegarLoop]: Difference is false [2022-12-13 19:54:57,395 INFO L309 stractBuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2022-12-13 19:54:57,395 INFO L313 stractBuchiCegarLoop]: ======== Iteration 0 == of CEGAR loop == BuchiAutomatonCegarLoop ======== [2022-12-13 19:54:57,398 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 10 states, 9 states have (on average 1.4444444444444444) internal successors, (13), 9 states have internal predecessors, (13), 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 19:54:57,411 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2022-12-13 19:54:57,411 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-12-13 19:54:57,411 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-12-13 19:54:57,415 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1] [2022-12-13 19:54:57,415 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1] [2022-12-13 19:54:57,415 INFO L335 stractBuchiCegarLoop]: ======== Iteration 1 ============ [2022-12-13 19:54:57,416 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 10 states, 9 states have (on average 1.4444444444444444) internal successors, (13), 9 states have internal predecessors, (13), 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 19:54:57,416 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2022-12-13 19:54:57,416 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-12-13 19:54:57,416 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-12-13 19:54:57,417 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1] [2022-12-13 19:54:57,417 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1] [2022-12-13 19:54:57,422 INFO L748 eck$LassoCheckResult]: Stem: 6#$Ultimate##0true assume { :begin_inline_ULTIMATE.init } true; 7#L-1true assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet0#1, main_#t~nondet1#1, main_~b~0#1, main_~x~0#1;havoc main_~b~0#1;havoc main_~x~0#1;main_~b~0#1 := 30;main_~x~0#1 := main_#t~nondet0#1;havoc main_#t~nondet0#1; 2#L19-2true [2022-12-13 19:54:57,423 INFO L750 eck$LassoCheckResult]: Loop: 2#L19-2true assume !!(main_~x~0#1 > 0); 8#L20true assume 0 == main_~b~0#1 || main_~b~0#1 == 1 + main_~b~0#1;main_#t~nondet1#1 := 1 + main_~b~0#1; 9#L20-4true main_~b~0#1 := main_#t~nondet1#1;havoc main_#t~nondet1#1;main_~x~0#1 := main_~x~0#1 - main_~b~0#1; 2#L19-2true [2022-12-13 19:54:57,427 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 19:54:57,427 INFO L85 PathProgramCache]: Analyzing trace with hash 963, now seen corresponding path program 1 times [2022-12-13 19:54:57,434 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 19:54:57,434 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1459574750] [2022-12-13 19:54:57,434 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 19:54:57,435 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 19:54:57,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 19:54:57,489 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-12-13 19:54:57,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 19:54:57,502 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-12-13 19:54:57,505 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 19:54:57,505 INFO L85 PathProgramCache]: Analyzing trace with hash 40819, now seen corresponding path program 1 times [2022-12-13 19:54:57,505 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 19:54:57,505 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1091508415] [2022-12-13 19:54:57,505 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 19:54:57,506 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 19:54:57,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 19:54:57,514 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-12-13 19:54:57,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 19:54:57,519 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-12-13 19:54:57,520 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 19:54:57,520 INFO L85 PathProgramCache]: Analyzing trace with hash 28699761, now seen corresponding path program 1 times [2022-12-13 19:54:57,520 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 19:54:57,520 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [35468090] [2022-12-13 19:54:57,520 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 19:54:57,521 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 19:54:57,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 19:54:57,578 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 19:54:57,579 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 19:54:57,579 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [35468090] [2022-12-13 19:54:57,579 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [35468090] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 19:54:57,580 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 19:54:57,580 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-13 19:54:57,580 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [32489220] [2022-12-13 19:54:57,580 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 19:54:57,645 INFO L210 LassoAnalysis]: Preferences: [2022-12-13 19:54:57,645 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-12-13 19:54:57,645 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-12-13 19:54:57,645 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-12-13 19:54:57,645 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2022-12-13 19:54:57,645 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-12-13 19:54:57,646 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-12-13 19:54:57,646 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-12-13 19:54:57,646 INFO L133 ssoRankerPreferences]: Filename of dumped script: or-02.c_Iteration1_Loop [2022-12-13 19:54:57,646 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-12-13 19:54:57,646 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-12-13 19:54:57,657 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 19:54:57,677 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 19:54:57,720 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-12-13 19:54:57,720 INFO L404 LassoAnalysis]: Checking for nontermination... [2022-12-13 19:54:57,722 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-12-13 19:54:57,722 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab44d187-e229-4102-9bea-d1db206d7612/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 19:54:57,723 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab44d187-e229-4102-9bea-d1db206d7612/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-12-13 19:54:57,724 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab44d187-e229-4102-9bea-d1db206d7612/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Waiting until timeout for monitored process [2022-12-13 19:54:57,725 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-12-13 19:54:57,725 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-12-13 19:54:57,743 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab44d187-e229-4102-9bea-d1db206d7612/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Forceful destruction successful, exit code 0 [2022-12-13 19:54:57,743 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-12-13 19:54:57,744 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab44d187-e229-4102-9bea-d1db206d7612/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 19:54:57,745 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab44d187-e229-4102-9bea-d1db206d7612/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-12-13 19:54:57,745 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab44d187-e229-4102-9bea-d1db206d7612/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Waiting until timeout for monitored process [2022-12-13 19:54:57,747 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2022-12-13 19:54:57,747 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-12-13 19:54:57,768 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2022-12-13 19:54:57,771 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab44d187-e229-4102-9bea-d1db206d7612/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Ended with exit code 0 [2022-12-13 19:54:57,771 INFO L210 LassoAnalysis]: Preferences: [2022-12-13 19:54:57,772 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-12-13 19:54:57,772 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-12-13 19:54:57,772 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-12-13 19:54:57,772 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2022-12-13 19:54:57,772 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-12-13 19:54:57,772 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-12-13 19:54:57,772 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-12-13 19:54:57,772 INFO L133 ssoRankerPreferences]: Filename of dumped script: or-02.c_Iteration1_Loop [2022-12-13 19:54:57,772 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-12-13 19:54:57,773 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-12-13 19:54:57,774 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 19:54:57,786 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 19:54:57,819 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-12-13 19:54:57,824 INFO L490 LassoAnalysis]: Using template 'affine'. [2022-12-13 19:54:57,825 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-12-13 19:54:57,825 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab44d187-e229-4102-9bea-d1db206d7612/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 19:54:57,826 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab44d187-e229-4102-9bea-d1db206d7612/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-12-13 19:54:57,827 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab44d187-e229-4102-9bea-d1db206d7612/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Waiting until timeout for monitored process [2022-12-13 19:54:57,829 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 19:54:57,839 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-12-13 19:54:57,840 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-12-13 19:54:57,840 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-12-13 19:54:57,840 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-12-13 19:54:57,840 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-12-13 19:54:57,844 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-12-13 19:54:57,844 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-12-13 19:54:57,847 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2022-12-13 19:54:57,856 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2022-12-13 19:54:57,856 INFO L444 ModelExtractionUtils]: 1 out of 4 variables were initially zero. Simplification set additionally 0 variables to zero. [2022-12-13 19:54:57,857 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-12-13 19:54:57,857 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab44d187-e229-4102-9bea-d1db206d7612/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 19:54:57,871 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab44d187-e229-4102-9bea-d1db206d7612/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-12-13 19:54:57,872 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab44d187-e229-4102-9bea-d1db206d7612/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Waiting until timeout for monitored process [2022-12-13 19:54:57,873 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2022-12-13 19:54:57,873 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2022-12-13 19:54:57,874 INFO L513 LassoAnalysis]: Proved termination. [2022-12-13 19:54:57,874 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~b~0#1) = -2*ULTIMATE.start_main_~b~0#1 + 1 Supporting invariants [] [2022-12-13 19:54:57,877 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab44d187-e229-4102-9bea-d1db206d7612/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Ended with exit code 0 [2022-12-13 19:54:57,881 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2022-12-13 19:54:57,902 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 19:54:57,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 19:54:57,911 INFO L263 TraceCheckSpWp]: Trace formula consists of 5 conjuncts, 2 conjunts are in the unsatisfiable core [2022-12-13 19:54:57,912 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 19:54:57,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 19:54:57,924 INFO L263 TraceCheckSpWp]: Trace formula consists of 11 conjuncts, 5 conjunts are in the unsatisfiable core [2022-12-13 19:54:57,925 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 19:54:57,955 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 19:54:57,987 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 19:54:57,988 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand has 10 states, 9 states have (on average 1.4444444444444444) internal successors, (13), 9 states have internal predecessors, (13), 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 4 states, 4 states have (on average 1.25) internal successors, (5), 4 states have internal predecessors, (5), 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 19:54:58,039 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand has 10 states, 9 states have (on average 1.4444444444444444) internal successors, (13), 9 states have internal predecessors, (13), 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 4 states, 4 states have (on average 1.25) internal successors, (5), 4 states have internal predecessors, (5), 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 32 states and 42 transitions. Complement of second has 8 states. [2022-12-13 19:54:58,041 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 19:54:58,044 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4 states, 4 states have (on average 1.25) internal successors, (5), 4 states have internal predecessors, (5), 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 19:54:58,044 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 16 transitions. [2022-12-13 19:54:58,045 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 16 transitions. Stem has 2 letters. Loop has 3 letters. [2022-12-13 19:54:58,046 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-12-13 19:54:58,046 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 16 transitions. Stem has 5 letters. Loop has 3 letters. [2022-12-13 19:54:58,046 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-12-13 19:54:58,046 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 16 transitions. Stem has 2 letters. Loop has 6 letters. [2022-12-13 19:54:58,046 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-12-13 19:54:58,047 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 32 states and 42 transitions. [2022-12-13 19:54:58,049 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2022-12-13 19:54:58,051 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 32 states to 13 states and 18 transitions. [2022-12-13 19:54:58,052 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 9 [2022-12-13 19:54:58,052 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 10 [2022-12-13 19:54:58,052 INFO L73 IsDeterministic]: Start isDeterministic. Operand 13 states and 18 transitions. [2022-12-13 19:54:58,053 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2022-12-13 19:54:58,053 INFO L218 hiAutomatonCegarLoop]: Abstraction has 13 states and 18 transitions. [2022-12-13 19:54:58,067 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13 states and 18 transitions. [2022-12-13 19:54:58,073 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13 to 11. [2022-12-13 19:54:58,073 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11 states, 11 states have (on average 1.3636363636363635) 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 19:54:58,073 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 15 transitions. [2022-12-13 19:54:58,074 INFO L240 hiAutomatonCegarLoop]: Abstraction has 11 states and 15 transitions. [2022-12-13 19:54:58,074 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 19:54:58,075 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-13 19:54:58,075 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-13 19:54:58,076 INFO L87 Difference]: Start difference. First operand 11 states and 15 transitions. Second operand has 3 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 3 states have internal predecessors, (5), 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 19:54:58,088 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 19:54:58,088 INFO L93 Difference]: Finished difference Result 11 states and 13 transitions. [2022-12-13 19:54:58,088 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 11 states and 13 transitions. [2022-12-13 19:54:58,089 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2022-12-13 19:54:58,089 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 11 states to 10 states and 12 transitions. [2022-12-13 19:54:58,089 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 10 [2022-12-13 19:54:58,089 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 10 [2022-12-13 19:54:58,089 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 12 transitions. [2022-12-13 19:54:58,090 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 19:54:58,090 INFO L218 hiAutomatonCegarLoop]: Abstraction has 10 states and 12 transitions. [2022-12-13 19:54:58,090 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10 states and 12 transitions. [2022-12-13 19:54:58,091 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10 to 9. [2022-12-13 19:54:58,091 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9 states, 9 states have (on average 1.2222222222222223) internal successors, (11), 8 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) [2022-12-13 19:54:58,091 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 11 transitions. [2022-12-13 19:54:58,091 INFO L240 hiAutomatonCegarLoop]: Abstraction has 9 states and 11 transitions. [2022-12-13 19:54:58,091 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-13 19:54:58,092 INFO L428 stractBuchiCegarLoop]: Abstraction has 9 states and 11 transitions. [2022-12-13 19:54:58,092 INFO L335 stractBuchiCegarLoop]: ======== Iteration 2 ============ [2022-12-13 19:54:58,092 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 9 states and 11 transitions. [2022-12-13 19:54:58,093 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2022-12-13 19:54:58,093 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-12-13 19:54:58,093 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-12-13 19:54:58,094 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1] [2022-12-13 19:54:58,094 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1] [2022-12-13 19:54:58,095 INFO L748 eck$LassoCheckResult]: Stem: 112#$Ultimate##0 assume { :begin_inline_ULTIMATE.init } true; 113#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_~b~0#1, main_~x~0#1;havoc main_~b~0#1;havoc main_~x~0#1;main_~b~0#1 := 30;main_~x~0#1 := main_#t~nondet0#1;havoc main_#t~nondet0#1; 108#L19-2 assume !!(main_~x~0#1 > 0); 109#L20 assume !(0 == main_~b~0#1 || main_~b~0#1 == 1 + main_~b~0#1); 110#L20-2 assume !(0 == 1 + main_~b~0#1);main_#t~nondet1#1 := ~bitwiseOr(main_~b~0#1, 1 + main_~b~0#1);assume (main_~b~0#1 < 0 || 1 + main_~b~0#1 < 0) || (main_#t~nondet1#1 >= main_~b~0#1 && main_#t~nondet1#1 >= 1 + main_~b~0#1);assume (main_~b~0#1 >= 0 && 1 + main_~b~0#1 >= 0) || main_#t~nondet1#1 < 0;assume (main_~b~0#1 < 0 || 1 + main_~b~0#1 < 0) || main_#t~nondet1#1 <= main_~b~0#1 + (1 + main_~b~0#1); 111#L20-4 [2022-12-13 19:54:58,095 INFO L750 eck$LassoCheckResult]: Loop: 111#L20-4 main_~b~0#1 := main_#t~nondet1#1;havoc main_#t~nondet1#1;main_~x~0#1 := main_~x~0#1 - main_~b~0#1; 114#L19-2 assume !!(main_~x~0#1 > 0); 116#L20 assume 0 == main_~b~0#1 || main_~b~0#1 == 1 + main_~b~0#1;main_#t~nondet1#1 := 1 + main_~b~0#1; 111#L20-4 [2022-12-13 19:54:58,095 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 19:54:58,096 INFO L85 PathProgramCache]: Analyzing trace with hash 28699821, now seen corresponding path program 1 times [2022-12-13 19:54:58,096 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 19:54:58,096 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [270487069] [2022-12-13 19:54:58,096 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 19:54:58,096 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 19:54:58,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 19:54:58,103 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-12-13 19:54:58,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 19:54:58,107 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-12-13 19:54:58,108 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 19:54:58,108 INFO L85 PathProgramCache]: Analyzing trace with hash 52249, now seen corresponding path program 2 times [2022-12-13 19:54:58,108 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 19:54:58,108 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1725154032] [2022-12-13 19:54:58,108 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 19:54:58,108 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 19:54:58,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 19:54:58,112 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-12-13 19:54:58,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 19:54:58,116 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-12-13 19:54:58,116 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 19:54:58,116 INFO L85 PathProgramCache]: Analyzing trace with hash 297897965, now seen corresponding path program 1 times [2022-12-13 19:54:58,116 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 19:54:58,117 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [686076270] [2022-12-13 19:54:58,117 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 19:54:58,117 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 19:54:58,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 19:54:58,172 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 19:54:58,172 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 19:54:58,172 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [686076270] [2022-12-13 19:54:58,172 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [686076270] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 19:54:58,172 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 19:54:58,172 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-12-13 19:54:58,173 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1483421892] [2022-12-13 19:54:58,173 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 19:54:58,200 INFO L210 LassoAnalysis]: Preferences: [2022-12-13 19:54:58,200 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-12-13 19:54:58,200 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-12-13 19:54:58,200 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-12-13 19:54:58,200 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2022-12-13 19:54:58,200 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-12-13 19:54:58,200 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-12-13 19:54:58,200 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-12-13 19:54:58,200 INFO L133 ssoRankerPreferences]: Filename of dumped script: or-02.c_Iteration2_Loop [2022-12-13 19:54:58,201 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-12-13 19:54:58,201 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-12-13 19:54:58,202 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 19:54:58,238 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-12-13 19:54:58,238 INFO L404 LassoAnalysis]: Checking for nontermination... [2022-12-13 19:54:58,238 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-12-13 19:54:58,238 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab44d187-e229-4102-9bea-d1db206d7612/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 19:54:58,239 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab44d187-e229-4102-9bea-d1db206d7612/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-12-13 19:54:58,240 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab44d187-e229-4102-9bea-d1db206d7612/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Waiting until timeout for monitored process [2022-12-13 19:54:58,242 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-12-13 19:54:58,242 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-12-13 19:54:58,257 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab44d187-e229-4102-9bea-d1db206d7612/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Ended with exit code 0 [2022-12-13 19:54:58,257 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-12-13 19:54:58,257 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab44d187-e229-4102-9bea-d1db206d7612/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 19:54:58,258 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab44d187-e229-4102-9bea-d1db206d7612/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-12-13 19:54:58,259 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab44d187-e229-4102-9bea-d1db206d7612/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Waiting until timeout for monitored process [2022-12-13 19:54:58,260 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2022-12-13 19:54:58,260 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-12-13 19:54:59,080 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2022-12-13 19:54:59,084 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab44d187-e229-4102-9bea-d1db206d7612/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Forceful destruction successful, exit code 0 [2022-12-13 19:54:59,085 INFO L210 LassoAnalysis]: Preferences: [2022-12-13 19:54:59,085 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-12-13 19:54:59,085 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-12-13 19:54:59,085 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-12-13 19:54:59,085 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2022-12-13 19:54:59,085 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-12-13 19:54:59,085 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-12-13 19:54:59,085 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-12-13 19:54:59,085 INFO L133 ssoRankerPreferences]: Filename of dumped script: or-02.c_Iteration2_Loop [2022-12-13 19:54:59,085 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-12-13 19:54:59,085 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-12-13 19:54:59,086 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 19:54:59,112 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-12-13 19:54:59,112 INFO L490 LassoAnalysis]: Using template 'affine'. [2022-12-13 19:54:59,112 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-12-13 19:54:59,112 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab44d187-e229-4102-9bea-d1db206d7612/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 19:54:59,113 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab44d187-e229-4102-9bea-d1db206d7612/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-12-13 19:54:59,114 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab44d187-e229-4102-9bea-d1db206d7612/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Waiting until timeout for monitored process [2022-12-13 19:54:59,115 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 19:54:59,125 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-12-13 19:54:59,126 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-12-13 19:54:59,126 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-12-13 19:54:59,126 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-12-13 19:54:59,126 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-12-13 19:54:59,128 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-12-13 19:54:59,128 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-12-13 19:54:59,131 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2022-12-13 19:54:59,134 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2022-12-13 19:54:59,134 INFO L444 ModelExtractionUtils]: 2 out of 5 variables were initially zero. Simplification set additionally 0 variables to zero. [2022-12-13 19:54:59,134 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-12-13 19:54:59,134 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab44d187-e229-4102-9bea-d1db206d7612/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 19:54:59,136 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab44d187-e229-4102-9bea-d1db206d7612/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-12-13 19:54:59,136 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab44d187-e229-4102-9bea-d1db206d7612/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Waiting until timeout for monitored process [2022-12-13 19:54:59,137 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2022-12-13 19:54:59,137 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2022-12-13 19:54:59,137 INFO L513 LassoAnalysis]: Proved termination. [2022-12-13 19:54:59,137 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_#t~nondet1#1) = -2*ULTIMATE.start_main_#t~nondet1#1 + 1 Supporting invariants [] [2022-12-13 19:54:59,140 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab44d187-e229-4102-9bea-d1db206d7612/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Ended with exit code 0 [2022-12-13 19:54:59,141 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2022-12-13 19:54:59,151 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 19:54:59,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 19:54:59,156 INFO L263 TraceCheckSpWp]: Trace formula consists of 11 conjuncts, 2 conjunts are in the unsatisfiable core [2022-12-13 19:54:59,156 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 19:54:59,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 19:54:59,164 WARN L261 TraceCheckSpWp]: Trace formula consists of 11 conjuncts, 6 conjunts are in the unsatisfiable core [2022-12-13 19:54:59,164 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 19:54:59,175 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 19:54:59,175 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 19:54:59,175 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 9 states and 11 transitions. cyclomatic complexity: 3 Second operand has 3 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 3 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 19:54:59,204 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 9 states and 11 transitions. cyclomatic complexity: 3. Second operand has 3 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 3 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 22 states and 28 transitions. Complement of second has 7 states. [2022-12-13 19:54:59,204 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2022-12-13 19:54:59,205 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 3 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 19:54:59,206 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 12 transitions. [2022-12-13 19:54:59,206 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 12 transitions. Stem has 5 letters. Loop has 3 letters. [2022-12-13 19:54:59,206 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-12-13 19:54:59,206 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 12 transitions. Stem has 8 letters. Loop has 3 letters. [2022-12-13 19:54:59,206 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-12-13 19:54:59,206 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 12 transitions. Stem has 5 letters. Loop has 6 letters. [2022-12-13 19:54:59,206 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-12-13 19:54:59,207 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 22 states and 28 transitions. [2022-12-13 19:54:59,207 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 8 [2022-12-13 19:54:59,208 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 22 states to 21 states and 27 transitions. [2022-12-13 19:54:59,208 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 15 [2022-12-13 19:54:59,208 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 16 [2022-12-13 19:54:59,208 INFO L73 IsDeterministic]: Start isDeterministic. Operand 21 states and 27 transitions. [2022-12-13 19:54:59,208 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2022-12-13 19:54:59,208 INFO L218 hiAutomatonCegarLoop]: Abstraction has 21 states and 27 transitions. [2022-12-13 19:54:59,209 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21 states and 27 transitions. [2022-12-13 19:54:59,210 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21 to 19. [2022-12-13 19:54:59,210 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19 states, 19 states have (on average 1.3157894736842106) internal successors, (25), 18 states have internal predecessors, (25), 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 19:54:59,211 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 25 transitions. [2022-12-13 19:54:59,211 INFO L240 hiAutomatonCegarLoop]: Abstraction has 19 states and 25 transitions. [2022-12-13 19:54:59,211 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 19:54:59,211 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-13 19:54:59,211 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-12-13 19:54:59,216 INFO L87 Difference]: Start difference. First operand 19 states and 25 transitions. Second operand has 5 states, 4 states have (on average 2.0) internal successors, (8), 5 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 19:54:59,217 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab44d187-e229-4102-9bea-d1db206d7612/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Forceful destruction successful, exit code 0 [2022-12-13 19:54:59,219 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab44d187-e229-4102-9bea-d1db206d7612/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Ended with exit code 0 [2022-12-13 19:54:59,239 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 19:54:59,239 INFO L93 Difference]: Finished difference Result 16 states and 16 transitions. [2022-12-13 19:54:59,239 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 16 states and 16 transitions. [2022-12-13 19:54:59,240 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2022-12-13 19:54:59,240 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 16 states to 13 states and 13 transitions. [2022-12-13 19:54:59,240 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 13 [2022-12-13 19:54:59,240 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 13 [2022-12-13 19:54:59,240 INFO L73 IsDeterministic]: Start isDeterministic. Operand 13 states and 13 transitions. [2022-12-13 19:54:59,240 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 19:54:59,240 INFO L218 hiAutomatonCegarLoop]: Abstraction has 13 states and 13 transitions. [2022-12-13 19:54:59,241 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13 states and 13 transitions. [2022-12-13 19:54:59,241 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13 to 6. [2022-12-13 19:54:59,241 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6 states, 6 states have (on average 1.0) internal successors, (6), 5 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) [2022-12-13 19:54:59,241 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 6 transitions. [2022-12-13 19:54:59,241 INFO L240 hiAutomatonCegarLoop]: Abstraction has 6 states and 6 transitions. [2022-12-13 19:54:59,242 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-12-13 19:54:59,242 INFO L428 stractBuchiCegarLoop]: Abstraction has 6 states and 6 transitions. [2022-12-13 19:54:59,242 INFO L335 stractBuchiCegarLoop]: ======== Iteration 3 ============ [2022-12-13 19:54:59,242 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 6 states and 6 transitions. [2022-12-13 19:54:59,243 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2022-12-13 19:54:59,243 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-12-13 19:54:59,243 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-12-13 19:54:59,243 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1] [2022-12-13 19:54:59,243 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2022-12-13 19:54:59,243 INFO L748 eck$LassoCheckResult]: Stem: 233#$Ultimate##0 assume { :begin_inline_ULTIMATE.init } true; 234#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet0#1, main_#t~nondet1#1, main_~b~0#1, main_~x~0#1;havoc main_~b~0#1;havoc main_~x~0#1;main_~b~0#1 := 30;main_~x~0#1 := main_#t~nondet0#1;havoc main_#t~nondet0#1; 229#L19-2 [2022-12-13 19:54:59,243 INFO L750 eck$LassoCheckResult]: Loop: 229#L19-2 assume !!(main_~x~0#1 > 0); 230#L20 assume !(0 == main_~b~0#1 || main_~b~0#1 == 1 + main_~b~0#1); 231#L20-2 assume !(0 == 1 + main_~b~0#1);main_#t~nondet1#1 := ~bitwiseOr(main_~b~0#1, 1 + main_~b~0#1);assume (main_~b~0#1 < 0 || 1 + main_~b~0#1 < 0) || (main_#t~nondet1#1 >= main_~b~0#1 && main_#t~nondet1#1 >= 1 + main_~b~0#1);assume (main_~b~0#1 >= 0 && 1 + main_~b~0#1 >= 0) || main_#t~nondet1#1 < 0;assume (main_~b~0#1 < 0 || 1 + main_~b~0#1 < 0) || main_#t~nondet1#1 <= main_~b~0#1 + (1 + main_~b~0#1); 232#L20-4 main_~b~0#1 := main_#t~nondet1#1;havoc main_#t~nondet1#1;main_~x~0#1 := main_~x~0#1 - main_~b~0#1; 229#L19-2 [2022-12-13 19:54:59,243 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 19:54:59,244 INFO L85 PathProgramCache]: Analyzing trace with hash 963, now seen corresponding path program 2 times [2022-12-13 19:54:59,244 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 19:54:59,244 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1686983866] [2022-12-13 19:54:59,244 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 19:54:59,244 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 19:54:59,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 19:54:59,246 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-12-13 19:54:59,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 19:54:59,247 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-12-13 19:54:59,248 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 19:54:59,248 INFO L85 PathProgramCache]: Analyzing trace with hash 1267272, now seen corresponding path program 1 times [2022-12-13 19:54:59,248 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 19:54:59,248 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1350189263] [2022-12-13 19:54:59,248 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 19:54:59,248 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 19:54:59,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 19:54:59,251 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-12-13 19:54:59,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 19:54:59,255 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-12-13 19:54:59,255 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 19:54:59,255 INFO L85 PathProgramCache]: Analyzing trace with hash 889694474, now seen corresponding path program 1 times [2022-12-13 19:54:59,256 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 19:54:59,256 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [623254091] [2022-12-13 19:54:59,256 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 19:54:59,256 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 19:54:59,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 19:54:59,260 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-12-13 19:54:59,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 19:54:59,263 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-12-13 19:54:59,365 INFO L210 LassoAnalysis]: Preferences: [2022-12-13 19:54:59,365 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-12-13 19:54:59,365 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-12-13 19:54:59,365 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-12-13 19:54:59,365 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2022-12-13 19:54:59,365 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-12-13 19:54:59,365 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-12-13 19:54:59,365 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-12-13 19:54:59,366 INFO L133 ssoRankerPreferences]: Filename of dumped script: or-02.c_Iteration3_Loop [2022-12-13 19:54:59,366 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-12-13 19:54:59,366 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-12-13 19:54:59,367 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 19:54:59,369 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 19:54:59,462 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-12-13 19:54:59,462 INFO L404 LassoAnalysis]: Checking for nontermination... [2022-12-13 19:54:59,463 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-12-13 19:54:59,463 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab44d187-e229-4102-9bea-d1db206d7612/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 19:54:59,464 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab44d187-e229-4102-9bea-d1db206d7612/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-12-13 19:54:59,464 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab44d187-e229-4102-9bea-d1db206d7612/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Waiting until timeout for monitored process [2022-12-13 19:54:59,466 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-12-13 19:54:59,466 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-12-13 19:54:59,478 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2022-12-13 19:54:59,478 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#t~nondet1#1=0} Honda state: {ULTIMATE.start_main_#t~nondet1#1=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2022-12-13 19:54:59,480 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab44d187-e229-4102-9bea-d1db206d7612/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Ended with exit code 0 [2022-12-13 19:54:59,481 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-12-13 19:54:59,481 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab44d187-e229-4102-9bea-d1db206d7612/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 19:54:59,482 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab44d187-e229-4102-9bea-d1db206d7612/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-12-13 19:54:59,483 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab44d187-e229-4102-9bea-d1db206d7612/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Waiting until timeout for monitored process [2022-12-13 19:54:59,484 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-12-13 19:54:59,484 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-12-13 19:54:59,498 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab44d187-e229-4102-9bea-d1db206d7612/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Forceful destruction successful, exit code 0 [2022-12-13 19:54:59,498 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-12-13 19:54:59,498 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab44d187-e229-4102-9bea-d1db206d7612/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 19:54:59,499 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab44d187-e229-4102-9bea-d1db206d7612/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-12-13 19:54:59,500 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab44d187-e229-4102-9bea-d1db206d7612/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Waiting until timeout for monitored process [2022-12-13 19:54:59,501 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2022-12-13 19:54:59,501 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-12-13 19:54:59,617 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2022-12-13 19:54:59,617 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_~x~0#1=1, ULTIMATE.start_main_~b~0#1=-8} Honda state: {ULTIMATE.start_main_~x~0#1=1, ULTIMATE.start_main_~b~0#1=-8} Generalized eigenvectors: [{ULTIMATE.start_main_~x~0#1=12, ULTIMATE.start_main_~b~0#1=-8}, {ULTIMATE.start_main_~x~0#1=10, ULTIMATE.start_main_~b~0#1=-8}, {ULTIMATE.start_main_~x~0#1=10, ULTIMATE.start_main_~b~0#1=-8}] Lambdas: [3, 4, 5] Nus: [0, 1] [2022-12-13 19:54:59,621 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab44d187-e229-4102-9bea-d1db206d7612/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Forceful destruction successful, exit code 0 [2022-12-13 19:54:59,626 INFO L210 LassoAnalysis]: Preferences: [2022-12-13 19:54:59,626 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-12-13 19:54:59,626 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-12-13 19:54:59,626 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-12-13 19:54:59,626 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2022-12-13 19:54:59,626 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-12-13 19:54:59,626 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-12-13 19:54:59,627 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-12-13 19:54:59,627 INFO L133 ssoRankerPreferences]: Filename of dumped script: or-02.c_Iteration3_Lasso [2022-12-13 19:54:59,627 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-12-13 19:54:59,627 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-12-13 19:54:59,628 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 19:54:59,646 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 19:54:59,647 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 19:54:59,649 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 19:54:59,735 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-12-13 19:54:59,735 INFO L404 LassoAnalysis]: Checking for nontermination... [2022-12-13 19:54:59,736 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-12-13 19:54:59,736 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab44d187-e229-4102-9bea-d1db206d7612/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 19:54:59,736 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab44d187-e229-4102-9bea-d1db206d7612/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-12-13 19:54:59,737 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab44d187-e229-4102-9bea-d1db206d7612/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Waiting until timeout for monitored process [2022-12-13 19:54:59,738 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-12-13 19:54:59,738 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-12-13 19:54:59,752 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab44d187-e229-4102-9bea-d1db206d7612/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Ended with exit code 0 [2022-12-13 19:54:59,753 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-12-13 19:54:59,753 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab44d187-e229-4102-9bea-d1db206d7612/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 19:54:59,754 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab44d187-e229-4102-9bea-d1db206d7612/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-12-13 19:54:59,754 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab44d187-e229-4102-9bea-d1db206d7612/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (14)] Waiting until timeout for monitored process [2022-12-13 19:54:59,756 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2022-12-13 19:54:59,756 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-12-13 19:54:59,778 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2022-12-13 19:54:59,781 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab44d187-e229-4102-9bea-d1db206d7612/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (14)] Ended with exit code 0 [2022-12-13 19:54:59,781 INFO L210 LassoAnalysis]: Preferences: [2022-12-13 19:54:59,781 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-12-13 19:54:59,781 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-12-13 19:54:59,781 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-12-13 19:54:59,781 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2022-12-13 19:54:59,781 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-12-13 19:54:59,781 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-12-13 19:54:59,782 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-12-13 19:54:59,782 INFO L133 ssoRankerPreferences]: Filename of dumped script: or-02.c_Iteration3_Lasso [2022-12-13 19:54:59,782 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-12-13 19:54:59,782 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-12-13 19:54:59,783 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 19:54:59,785 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 19:54:59,802 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 19:54:59,804 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 19:54:59,884 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-12-13 19:54:59,884 INFO L490 LassoAnalysis]: Using template 'affine'. [2022-12-13 19:54:59,884 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-12-13 19:54:59,884 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab44d187-e229-4102-9bea-d1db206d7612/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 19:54:59,885 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab44d187-e229-4102-9bea-d1db206d7612/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-12-13 19:54:59,885 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab44d187-e229-4102-9bea-d1db206d7612/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (15)] Waiting until timeout for monitored process [2022-12-13 19:54:59,887 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 19:54:59,897 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-12-13 19:54:59,897 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-12-13 19:54:59,897 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-12-13 19:54:59,897 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-12-13 19:54:59,897 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-12-13 19:54:59,898 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-12-13 19:54:59,898 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-12-13 19:54:59,899 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-12-13 19:54:59,902 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab44d187-e229-4102-9bea-d1db206d7612/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (15)] Forceful destruction successful, exit code 0 [2022-12-13 19:54:59,902 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-12-13 19:54:59,902 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab44d187-e229-4102-9bea-d1db206d7612/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 19:54:59,903 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab44d187-e229-4102-9bea-d1db206d7612/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-12-13 19:54:59,904 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab44d187-e229-4102-9bea-d1db206d7612/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (16)] Waiting until timeout for monitored process [2022-12-13 19:54:59,905 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 19:54:59,915 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-12-13 19:54:59,916 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-12-13 19:54:59,916 INFO L204 nArgumentSynthesizer]: 2 loop disjuncts [2022-12-13 19:54:59,916 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-12-13 19:54:59,928 INFO L401 nArgumentSynthesizer]: We have 16 Motzkin's Theorem applications. [2022-12-13 19:54:59,928 INFO L402 nArgumentSynthesizer]: A total of 4 supporting invariants were added. [2022-12-13 19:54:59,952 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2022-12-13 19:54:59,982 INFO L443 ModelExtractionUtils]: Simplification made 9 calls to the SMT solver. [2022-12-13 19:54:59,982 INFO L444 ModelExtractionUtils]: 6 out of 16 variables were initially zero. Simplification set additionally 5 variables to zero. [2022-12-13 19:54:59,982 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-12-13 19:54:59,982 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab44d187-e229-4102-9bea-d1db206d7612/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 19:54:59,983 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab44d187-e229-4102-9bea-d1db206d7612/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-12-13 19:54:59,984 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab44d187-e229-4102-9bea-d1db206d7612/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (17)] Waiting until timeout for monitored process [2022-12-13 19:54:59,985 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2022-12-13 19:54:59,997 INFO L438 nArgumentSynthesizer]: Removed 3 redundant supporting invariants from a total of 4. [2022-12-13 19:54:59,998 INFO L513 LassoAnalysis]: Proved termination. [2022-12-13 19:54:59,998 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~b~0#1, ULTIMATE.start_main_~x~0#1) = 1*ULTIMATE.start_main_~b~0#1 + 1*ULTIMATE.start_main_~x~0#1 Supporting invariants [1*ULTIMATE.start_main_~b~0#1 >= 0] [2022-12-13 19:55:00,001 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab44d187-e229-4102-9bea-d1db206d7612/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (16)] Ended with exit code 0 [2022-12-13 19:55:00,004 INFO L156 tatePredicateManager]: 0 out of 1 supporting invariants were superfluous and have been removed [2022-12-13 19:55:00,019 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 19:55:00,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 19:55:00,021 WARN L261 TraceCheckSpWp]: Trace formula consists of 5 conjuncts, 3 conjunts are in the unsatisfiable core [2022-12-13 19:55:00,022 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 19:55:00,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 19:55:00,027 WARN L261 TraceCheckSpWp]: Trace formula consists of 13 conjuncts, 8 conjunts are in the unsatisfiable core [2022-12-13 19:55:00,028 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 19:55:00,090 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 19:55:00,091 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 4 loop predicates [2022-12-13 19:55:00,091 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 6 states and 6 transitions. cyclomatic complexity: 1 Second operand has 5 states, 5 states have (on average 1.2) internal successors, (6), 5 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) [2022-12-13 19:55:00,138 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 6 states and 6 transitions. cyclomatic complexity: 1. Second operand has 5 states, 5 states have (on average 1.2) internal successors, (6), 5 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 10 states and 11 transitions. Complement of second has 8 states. [2022-12-13 19:55:00,139 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 5 states 1 stem states 3 non-accepting loop states 1 accepting loop states [2022-12-13 19:55:00,139 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5 states, 5 states have (on average 1.2) internal successors, (6), 5 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) [2022-12-13 19:55:00,140 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 6 transitions. [2022-12-13 19:55:00,140 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 6 transitions. Stem has 2 letters. Loop has 4 letters. [2022-12-13 19:55:00,140 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-12-13 19:55:00,140 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 6 transitions. Stem has 6 letters. Loop has 4 letters. [2022-12-13 19:55:00,140 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-12-13 19:55:00,140 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 6 transitions. Stem has 2 letters. Loop has 8 letters. [2022-12-13 19:55:00,140 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-12-13 19:55:00,140 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 10 states and 11 transitions. [2022-12-13 19:55:00,141 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2022-12-13 19:55:00,141 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 10 states to 0 states and 0 transitions. [2022-12-13 19:55:00,141 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2022-12-13 19:55:00,141 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2022-12-13 19:55:00,141 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2022-12-13 19:55:00,141 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 19:55:00,141 INFO L218 hiAutomatonCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-12-13 19:55:00,141 INFO L240 hiAutomatonCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-12-13 19:55:00,141 INFO L428 stractBuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-12-13 19:55:00,141 INFO L335 stractBuchiCegarLoop]: ======== Iteration 4 ============ [2022-12-13 19:55:00,142 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2022-12-13 19:55:00,142 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2022-12-13 19:55:00,142 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2022-12-13 19:55:00,151 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab44d187-e229-4102-9bea-d1db206d7612/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (17)] Ended with exit code 0 [2022-12-13 19:55:00,153 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 13.12 07:55:00 BoogieIcfgContainer [2022-12-13 19:55:00,154 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2022-12-13 19:55:00,154 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-12-13 19:55:00,154 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-12-13 19:55:00,154 INFO L275 PluginConnector]: Witness Printer initialized [2022-12-13 19:55:00,155 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 07:54:57" (3/4) ... [2022-12-13 19:55:00,156 INFO L140 WitnessPrinter]: No result that supports witness generation found [2022-12-13 19:55:00,157 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-12-13 19:55:00,157 INFO L158 Benchmark]: Toolchain (without parser) took 3151.02ms. Allocated memory was 109.1MB in the beginning and 132.1MB in the end (delta: 23.1MB). Free memory was 75.3MB in the beginning and 102.2MB in the end (delta: -26.9MB). There was no memory consumed. Max. memory is 16.1GB. [2022-12-13 19:55:00,157 INFO L158 Benchmark]: CDTParser took 0.21ms. Allocated memory is still 109.1MB. Free memory was 72.2MB in the beginning and 72.2MB in the end (delta: 24.4kB). There was no memory consumed. Max. memory is 16.1GB. [2022-12-13 19:55:00,158 INFO L158 Benchmark]: CACSL2BoogieTranslator took 139.41ms. Allocated memory is still 109.1MB. Free memory was 75.3MB in the beginning and 66.0MB in the end (delta: 9.2MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2022-12-13 19:55:00,158 INFO L158 Benchmark]: Boogie Procedure Inliner took 21.62ms. Allocated memory is still 109.1MB. Free memory was 66.0MB in the beginning and 64.8MB in the end (delta: 1.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-12-13 19:55:00,159 INFO L158 Benchmark]: Boogie Preprocessor took 13.56ms. Allocated memory is still 109.1MB. Free memory was 64.8MB in the beginning and 63.5MB in the end (delta: 1.3MB). There was no memory consumed. Max. memory is 16.1GB. [2022-12-13 19:55:00,159 INFO L158 Benchmark]: RCFGBuilder took 164.23ms. Allocated memory is still 109.1MB. Free memory was 63.5MB in the beginning and 55.1MB in the end (delta: 8.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2022-12-13 19:55:00,159 INFO L158 Benchmark]: BuchiAutomizer took 2805.97ms. Allocated memory was 109.1MB in the beginning and 132.1MB in the end (delta: 23.1MB). Free memory was 54.7MB in the beginning and 102.2MB in the end (delta: -47.4MB). Peak memory consumption was 49.0MB. Max. memory is 16.1GB. [2022-12-13 19:55:00,159 INFO L158 Benchmark]: Witness Printer took 2.56ms. Allocated memory is still 132.1MB. Free memory is still 102.2MB. There was no memory consumed. Max. memory is 16.1GB. [2022-12-13 19:55:00,161 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.21ms. Allocated memory is still 109.1MB. Free memory was 72.2MB in the beginning and 72.2MB in the end (delta: 24.4kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 139.41ms. Allocated memory is still 109.1MB. Free memory was 75.3MB in the beginning and 66.0MB in the end (delta: 9.2MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 21.62ms. Allocated memory is still 109.1MB. Free memory was 66.0MB in the beginning and 64.8MB in the end (delta: 1.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 13.56ms. Allocated memory is still 109.1MB. Free memory was 64.8MB in the beginning and 63.5MB in the end (delta: 1.3MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 164.23ms. Allocated memory is still 109.1MB. Free memory was 63.5MB in the beginning and 55.1MB in the end (delta: 8.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * BuchiAutomizer took 2805.97ms. Allocated memory was 109.1MB in the beginning and 132.1MB in the end (delta: 23.1MB). Free memory was 54.7MB in the beginning and 102.2MB in the end (delta: -47.4MB). Peak memory consumption was 49.0MB. Max. memory is 16.1GB. * Witness Printer took 2.56ms. Allocated memory is still 132.1MB. Free memory is still 102.2MB. 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 5 terminating modules (2 trivial, 3 deterministic, 0 nondeterministic). One deterministic module has affine ranking function -2 * b + 1 and consists of 5 locations. One deterministic module has affine ranking function -2 * aux-b= b|(b+1)-aux + 1 and consists of 4 locations. One deterministic module has affine ranking function b + x and consists of 5 locations. 2 modules have a trivial ranking function, the largest among these consists of 5 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 2.7s and 4 iterations. TraceHistogramMax:1. Analysis of lassos took 2.2s. Construction of modules took 0.0s. Büchi inclusion checks took 0.3s. Highest rank in rank-based complementation 3. Minimization of det autom 3. Minimization of nondet autom 2. Automata minimization 0.0s AutomataMinimizationTime, 4 MinimizatonAttempts, 12 StatesRemovedByMinimization, 4 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 [3, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 29 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 27 mSDsluCounter, 44 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 19 mSDsCounter, 14 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 62 IncrementalHoareTripleChecker+Invalid, 76 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 14 mSolverCounterUnsat, 25 mSDtfsCounter, 62 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown LassoAnalysisResults: nont0 unkn0 SFLI0 SFLT0 conc0 concLT2 SILN0 SILU0 SILI0 SILT0 lasso1 LassoPreprocessingBenchmarks: Lassos: inital31 mio100 ax100 hnf100 lsp100 ukn100 mio100 lsp100 div100 bol100 ite100 ukn100 eq164 hnf93 smp100 dnf236 smp67 tf103 neg99 sie110 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: sat Degree: 0 Time: 95ms VariablesStem: 1 VariablesLoop: 4 DisjunctsStem: 1 DisjunctsLoop: 2 SupportingInvariants: 4 MotzkinApplications: 16 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 1 LassoNonterminationAnalysisSatUnbounded: 1 LassoNonterminationAnalysisUnsat: 3 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 1.0s InitialAbstractionConstructionTime: 0.0s - TerminationAnalysisResult: Termination proven Buchi Automizer proved that your program is terminating RESULT: Ultimate proved your program to be correct! [2022-12-13 19:55:00,175 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab44d187-e229-4102-9bea-d1db206d7612/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 Writing output log to file Ultimate.log Result: TRUE