./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/termination-bwb/and-05.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version dbf71c69 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b9b6e7df-47e6-4797-99bc-56e0e34b78de/bin/uautomizer-J5u9QxTXDZ/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b9b6e7df-47e6-4797-99bc-56e0e34b78de/bin/uautomizer-J5u9QxTXDZ/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b9b6e7df-47e6-4797-99bc-56e0e34b78de/bin/uautomizer-J5u9QxTXDZ/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b9b6e7df-47e6-4797-99bc-56e0e34b78de/bin/uautomizer-J5u9QxTXDZ/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/termination-bwb/and-05.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b9b6e7df-47e6-4797-99bc-56e0e34b78de/bin/uautomizer-J5u9QxTXDZ/config/svcomp-Termination-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b9b6e7df-47e6-4797-99bc-56e0e34b78de/bin/uautomizer-J5u9QxTXDZ --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 48505588d7e651383dbb51501a7ba8151dafe2f0aaf2cdca9e989876f7735131 --- 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-dbf71c6-m [2022-10-17 10:13:51,881 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-10-17 10:13:51,883 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-10-17 10:13:51,915 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-10-17 10:13:51,915 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-10-17 10:13:51,917 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-10-17 10:13:51,919 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-10-17 10:13:51,921 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-10-17 10:13:51,923 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-10-17 10:13:51,924 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-10-17 10:13:51,926 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-10-17 10:13:51,927 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-10-17 10:13:51,928 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-10-17 10:13:51,929 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-10-17 10:13:51,931 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-10-17 10:13:51,932 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-10-17 10:13:51,933 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-10-17 10:13:51,935 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-10-17 10:13:51,937 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-10-17 10:13:51,940 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-10-17 10:13:51,942 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-10-17 10:13:51,944 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-10-17 10:13:51,945 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-10-17 10:13:51,947 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-10-17 10:13:51,952 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-10-17 10:13:51,952 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-10-17 10:13:51,953 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-10-17 10:13:51,954 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-10-17 10:13:51,955 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-10-17 10:13:51,956 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-10-17 10:13:51,956 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-10-17 10:13:51,958 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-10-17 10:13:51,959 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-10-17 10:13:51,960 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-10-17 10:13:51,961 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-10-17 10:13:51,961 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-10-17 10:13:51,962 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-10-17 10:13:51,963 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-10-17 10:13:51,963 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-10-17 10:13:51,964 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-10-17 10:13:51,965 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-10-17 10:13:51,966 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b9b6e7df-47e6-4797-99bc-56e0e34b78de/bin/uautomizer-J5u9QxTXDZ/config/svcomp-Termination-64bit-Automizer_Default.epf [2022-10-17 10:13:51,993 INFO L113 SettingsManager]: Loading preferences was successful [2022-10-17 10:13:51,993 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-10-17 10:13:51,993 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-10-17 10:13:51,994 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-10-17 10:13:51,995 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-10-17 10:13:51,995 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-10-17 10:13:51,995 INFO L138 SettingsManager]: * Use SBE=true [2022-10-17 10:13:51,996 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2022-10-17 10:13:51,996 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2022-10-17 10:13:51,996 INFO L138 SettingsManager]: * Use old map elimination=false [2022-10-17 10:13:51,996 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2022-10-17 10:13:51,996 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2022-10-17 10:13:51,997 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2022-10-17 10:13:51,997 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-10-17 10:13:51,997 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-10-17 10:13:51,997 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-10-17 10:13:51,998 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-10-17 10:13:51,998 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2022-10-17 10:13:51,998 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2022-10-17 10:13:51,998 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2022-10-17 10:13:51,999 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-10-17 10:13:51,999 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2022-10-17 10:13:51,999 INFO L138 SettingsManager]: * Use constant arrays=true [2022-10-17 10:13:51,999 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2022-10-17 10:13:52,000 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-10-17 10:13:52,000 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-10-17 10:13:52,000 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-10-17 10:13:52,000 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-10-17 10:13:52,001 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2022-10-17 10:13:52,002 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_b9b6e7df-47e6-4797-99bc-56e0e34b78de/bin/uautomizer-J5u9QxTXDZ/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b9b6e7df-47e6-4797-99bc-56e0e34b78de/bin/uautomizer-J5u9QxTXDZ Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 48505588d7e651383dbb51501a7ba8151dafe2f0aaf2cdca9e989876f7735131 [2022-10-17 10:13:52,236 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-10-17 10:13:52,264 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-10-17 10:13:52,269 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-10-17 10:13:52,271 INFO L271 PluginConnector]: Initializing CDTParser... [2022-10-17 10:13:52,273 INFO L275 PluginConnector]: CDTParser initialized [2022-10-17 10:13:52,274 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b9b6e7df-47e6-4797-99bc-56e0e34b78de/bin/uautomizer-J5u9QxTXDZ/../../sv-benchmarks/c/termination-bwb/and-05.c [2022-10-17 10:13:52,337 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b9b6e7df-47e6-4797-99bc-56e0e34b78de/bin/uautomizer-J5u9QxTXDZ/data/c1213b0df/5dd051b43d51440db2db2a3e27c49c36/FLAG946335902 [2022-10-17 10:13:52,818 INFO L306 CDTParser]: Found 1 translation units. [2022-10-17 10:13:52,819 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b9b6e7df-47e6-4797-99bc-56e0e34b78de/sv-benchmarks/c/termination-bwb/and-05.c [2022-10-17 10:13:52,825 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b9b6e7df-47e6-4797-99bc-56e0e34b78de/bin/uautomizer-J5u9QxTXDZ/data/c1213b0df/5dd051b43d51440db2db2a3e27c49c36/FLAG946335902 [2022-10-17 10:13:53,201 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b9b6e7df-47e6-4797-99bc-56e0e34b78de/bin/uautomizer-J5u9QxTXDZ/data/c1213b0df/5dd051b43d51440db2db2a3e27c49c36 [2022-10-17 10:13:53,203 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-10-17 10:13:53,205 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-10-17 10:13:53,215 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-10-17 10:13:53,215 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-10-17 10:13:53,219 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-10-17 10:13:53,219 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.10 10:13:53" (1/1) ... [2022-10-17 10:13:53,222 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@437ae7be and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:13:53, skipping insertion in model container [2022-10-17 10:13:53,222 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.10 10:13:53" (1/1) ... [2022-10-17 10:13:53,236 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-10-17 10:13:53,249 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-10-17 10:13:53,464 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-10-17 10:13:53,468 INFO L203 MainTranslator]: Completed pre-run [2022-10-17 10:13:53,482 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-10-17 10:13:53,494 INFO L208 MainTranslator]: Completed translation [2022-10-17 10:13:53,495 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:13:53 WrapperNode [2022-10-17 10:13:53,495 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-10-17 10:13:53,497 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-10-17 10:13:53,497 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-10-17 10:13:53,497 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-10-17 10:13:53,505 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:13:53" (1/1) ... [2022-10-17 10:13:53,510 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:13:53" (1/1) ... [2022-10-17 10:13:53,528 INFO L138 Inliner]: procedures = 4, calls = 2, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 27 [2022-10-17 10:13:53,529 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-10-17 10:13:53,530 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-10-17 10:13:53,530 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-10-17 10:13:53,530 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-10-17 10:13:53,539 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:13:53" (1/1) ... [2022-10-17 10:13:53,539 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:13:53" (1/1) ... [2022-10-17 10:13:53,540 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:13:53" (1/1) ... [2022-10-17 10:13:53,541 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:13:53" (1/1) ... [2022-10-17 10:13:53,544 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:13:53" (1/1) ... [2022-10-17 10:13:53,548 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:13:53" (1/1) ... [2022-10-17 10:13:53,549 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:13:53" (1/1) ... [2022-10-17 10:13:53,550 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:13:53" (1/1) ... [2022-10-17 10:13:53,551 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-10-17 10:13:53,552 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-10-17 10:13:53,552 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-10-17 10:13:53,553 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-10-17 10:13:53,554 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:13:53" (1/1) ... [2022-10-17 10:13:53,561 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-10-17 10:13:53,572 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b9b6e7df-47e6-4797-99bc-56e0e34b78de/bin/uautomizer-J5u9QxTXDZ/z3 [2022-10-17 10:13:53,586 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b9b6e7df-47e6-4797-99bc-56e0e34b78de/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-10-17 10:13:53,620 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b9b6e7df-47e6-4797-99bc-56e0e34b78de/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2022-10-17 10:13:53,643 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-10-17 10:13:53,644 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-10-17 10:13:53,700 INFO L235 CfgBuilder]: Building ICFG [2022-10-17 10:13:53,703 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-10-17 10:13:53,848 INFO L276 CfgBuilder]: Performing block encoding [2022-10-17 10:13:53,855 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-10-17 10:13:53,856 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2022-10-17 10:13:53,858 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.10 10:13:53 BoogieIcfgContainer [2022-10-17 10:13:53,858 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-10-17 10:13:53,859 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2022-10-17 10:13:53,859 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2022-10-17 10:13:53,864 INFO L275 PluginConnector]: BuchiAutomizer initialized [2022-10-17 10:13:53,865 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-10-17 10:13:53,865 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 17.10 10:13:53" (1/3) ... [2022-10-17 10:13:53,867 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@3f32307a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 17.10 10:13:53, skipping insertion in model container [2022-10-17 10:13:53,867 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-10-17 10:13:53,867 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:13:53" (2/3) ... [2022-10-17 10:13:53,868 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@3f32307a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 17.10 10:13:53, skipping insertion in model container [2022-10-17 10:13:53,868 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-10-17 10:13:53,868 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.10 10:13:53" (3/3) ... [2022-10-17 10:13:53,870 INFO L332 chiAutomizerObserver]: Analyzing ICFG and-05.c [2022-10-17 10:13:53,944 INFO L303 stractBuchiCegarLoop]: Interprodecural is true [2022-10-17 10:13:53,944 INFO L304 stractBuchiCegarLoop]: Hoare is false [2022-10-17 10:13:53,944 INFO L305 stractBuchiCegarLoop]: Compute interpolants for ForwardPredicates [2022-10-17 10:13:53,944 INFO L306 stractBuchiCegarLoop]: Backedges is STRAIGHT_LINE [2022-10-17 10:13:53,945 INFO L307 stractBuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2022-10-17 10:13:53,945 INFO L308 stractBuchiCegarLoop]: Difference is false [2022-10-17 10:13:53,945 INFO L309 stractBuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2022-10-17 10:13:53,945 INFO L313 stractBuchiCegarLoop]: ======== Iteration 0 == of CEGAR loop == BuchiAutomatonCegarLoop ======== [2022-10-17 10:13:53,963 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 11 states, 10 states have (on average 1.6) internal successors, (16), 10 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-17 10:13:53,982 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 5 [2022-10-17 10:13:53,990 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-10-17 10:13:53,990 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-10-17 10:13:53,997 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1] [2022-10-17 10:13:54,010 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1] [2022-10-17 10:13:54,010 INFO L335 stractBuchiCegarLoop]: ======== Iteration 1 ============ [2022-10-17 10:13:54,011 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 11 states, 10 states have (on average 1.6) internal successors, (16), 10 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-17 10:13:54,013 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 5 [2022-10-17 10:13:54,013 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-10-17 10:13:54,013 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-10-17 10:13:54,014 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1] [2022-10-17 10:13:54,014 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1] [2022-10-17 10:13:54,026 INFO L748 eck$LassoCheckResult]: Stem: 5#ULTIMATE.startENTRYtrue assume { :begin_inline_ULTIMATE.init } true; 9#L-1true assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet0#1, main_#t~nondet1#1, main_#t~nondet2#1, main_~x~0#1, main_~y~0#1, main_~res~0#1;havoc main_~x~0#1;havoc main_~y~0#1;havoc main_~res~0#1;main_~x~0#1 := main_#t~nondet0#1;havoc main_#t~nondet0#1;main_~y~0#1 := main_#t~nondet1#1;havoc main_#t~nondet1#1; 7#L17-8true [2022-10-17 10:13:54,026 INFO L750 eck$LassoCheckResult]: Loop: 7#L17-8true assume !!(main_~x~0#1 >= main_~y~0#1 && main_~y~0#1 > 0); 3#L17true assume 0 == main_~x~0#1 - 1 || 0 == main_~y~0#1;main_~x~0#1 := 0; 7#L17-8true [2022-10-17 10:13:54,032 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-17 10:13:54,032 INFO L85 PathProgramCache]: Analyzing trace with hash 963, now seen corresponding path program 1 times [2022-10-17 10:13:54,055 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-17 10:13:54,056 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [307466620] [2022-10-17 10:13:54,057 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-17 10:13:54,058 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 10:13:54,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-10-17 10:13:54,136 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-10-17 10:13:54,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-10-17 10:13:54,157 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-10-17 10:13:54,160 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-17 10:13:54,160 INFO L85 PathProgramCache]: Analyzing trace with hash 1316, now seen corresponding path program 1 times [2022-10-17 10:13:54,161 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-17 10:13:54,161 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [751798282] [2022-10-17 10:13:54,161 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-17 10:13:54,162 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 10:13:54,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-10-17 10:13:54,192 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-10-17 10:13:54,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-10-17 10:13:54,198 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-10-17 10:13:54,200 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-17 10:13:54,200 INFO L85 PathProgramCache]: Analyzing trace with hash 925798, now seen corresponding path program 1 times [2022-10-17 10:13:54,201 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-17 10:13:54,201 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [893027790] [2022-10-17 10:13:54,201 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-17 10:13:54,201 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 10:13:54,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-10-17 10:13:54,208 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-10-17 10:13:54,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-10-17 10:13:54,214 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-10-17 10:13:54,314 INFO L210 LassoAnalysis]: Preferences: [2022-10-17 10:13:54,315 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-10-17 10:13:54,315 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-10-17 10:13:54,315 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-10-17 10:13:54,315 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2022-10-17 10:13:54,315 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-10-17 10:13:54,315 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-10-17 10:13:54,316 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-10-17 10:13:54,316 INFO L133 ssoRankerPreferences]: Filename of dumped script: and-05.c_Iteration1_Loop [2022-10-17 10:13:54,316 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-10-17 10:13:54,316 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-10-17 10:13:54,333 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-10-17 10:13:54,407 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-10-17 10:13:54,408 INFO L404 LassoAnalysis]: Checking for nontermination... [2022-10-17 10:13:54,410 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-10-17 10:13:54,410 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b9b6e7df-47e6-4797-99bc-56e0e34b78de/bin/uautomizer-J5u9QxTXDZ/z3 [2022-10-17 10:13:54,424 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b9b6e7df-47e6-4797-99bc-56e0e34b78de/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-10-17 10:13:54,435 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-10-17 10:13:54,435 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-10-17 10:13:54,451 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b9b6e7df-47e6-4797-99bc-56e0e34b78de/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Waiting until timeout for monitored process [2022-10-17 10:13:54,507 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b9b6e7df-47e6-4797-99bc-56e0e34b78de/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Forceful destruction successful, exit code 0 [2022-10-17 10:13:54,507 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-10-17 10:13:54,507 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b9b6e7df-47e6-4797-99bc-56e0e34b78de/bin/uautomizer-J5u9QxTXDZ/z3 [2022-10-17 10:13:54,509 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b9b6e7df-47e6-4797-99bc-56e0e34b78de/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-10-17 10:13:54,515 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2022-10-17 10:13:54,515 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-10-17 10:13:54,542 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b9b6e7df-47e6-4797-99bc-56e0e34b78de/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Waiting until timeout for monitored process [2022-10-17 10:13:54,631 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2022-10-17 10:13:54,638 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b9b6e7df-47e6-4797-99bc-56e0e34b78de/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Forceful destruction successful, exit code 0 [2022-10-17 10:13:54,639 INFO L210 LassoAnalysis]: Preferences: [2022-10-17 10:13:54,639 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-10-17 10:13:54,639 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-10-17 10:13:54,639 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-10-17 10:13:54,639 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2022-10-17 10:13:54,639 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-10-17 10:13:54,640 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-10-17 10:13:54,640 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-10-17 10:13:54,640 INFO L133 ssoRankerPreferences]: Filename of dumped script: and-05.c_Iteration1_Loop [2022-10-17 10:13:54,640 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-10-17 10:13:54,640 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-10-17 10:13:54,641 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-10-17 10:13:54,706 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-10-17 10:13:54,710 INFO L490 LassoAnalysis]: Using template 'affine'. [2022-10-17 10:13:54,711 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-10-17 10:13:54,738 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b9b6e7df-47e6-4797-99bc-56e0e34b78de/bin/uautomizer-J5u9QxTXDZ/z3 [2022-10-17 10:13:54,743 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b9b6e7df-47e6-4797-99bc-56e0e34b78de/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-10-17 10:13:54,749 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 [2022-10-17 10:13:54,759 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-10-17 10:13:54,759 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-10-17 10:13:54,760 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-10-17 10:13:54,760 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-10-17 10:13:54,760 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-10-17 10:13:54,765 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-10-17 10:13:54,765 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-10-17 10:13:54,774 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b9b6e7df-47e6-4797-99bc-56e0e34b78de/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Waiting until timeout for monitored process [2022-10-17 10:13:54,782 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2022-10-17 10:13:54,792 INFO L443 ModelExtractionUtils]: Simplification made 4 calls to the SMT solver. [2022-10-17 10:13:54,793 INFO L444 ModelExtractionUtils]: 0 out of 4 variables were initially zero. Simplification set additionally 2 variables to zero. [2022-10-17 10:13:54,794 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-10-17 10:13:54,794 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b9b6e7df-47e6-4797-99bc-56e0e34b78de/bin/uautomizer-J5u9QxTXDZ/z3 [2022-10-17 10:13:54,796 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b9b6e7df-47e6-4797-99bc-56e0e34b78de/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-10-17 10:13:54,827 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2022-10-17 10:13:54,828 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2022-10-17 10:13:54,828 INFO L513 LassoAnalysis]: Proved termination. [2022-10-17 10:13:54,829 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~x~0#1) = 1*ULTIMATE.start_main_~x~0#1 Supporting invariants [] [2022-10-17 10:13:54,835 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b9b6e7df-47e6-4797-99bc-56e0e34b78de/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Waiting until timeout for monitored process [2022-10-17 10:13:54,868 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b9b6e7df-47e6-4797-99bc-56e0e34b78de/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Forceful destruction successful, exit code 0 [2022-10-17 10:13:54,871 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2022-10-17 10:13:54,891 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-17 10:13:54,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:13:54,899 WARN L261 TraceCheckSpWp]: Trace formula consists of 4 conjuncts, 2 conjunts are in the unsatisfiable core [2022-10-17 10:13:54,900 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-17 10:13:54,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:13:54,913 WARN L261 TraceCheckSpWp]: Trace formula consists of 7 conjuncts, 5 conjunts are in the unsatisfiable core [2022-10-17 10:13:54,913 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-17 10:13:54,945 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-17 10:13:54,980 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 [2022-10-17 10:13:54,982 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand has 11 states, 10 states have (on average 1.6) internal successors, (16), 10 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 3 states, 3 states have (on average 1.3333333333333333) internal successors, (4), 3 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-17 10:13:55,070 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand has 11 states, 10 states have (on average 1.6) internal successors, (16), 10 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0). Second operand has 3 states, 3 states have (on average 1.3333333333333333) internal successors, (4), 3 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 58 states and 81 transitions. Complement of second has 9 states. [2022-10-17 10:13:55,072 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 6 states 1 stem states 3 non-accepting loop states 1 accepting loop states [2022-10-17 10:13:55,077 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 1.3333333333333333) internal successors, (4), 3 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-17 10:13:55,078 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 50 transitions. [2022-10-17 10:13:55,079 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states and 50 transitions. Stem has 2 letters. Loop has 2 letters. [2022-10-17 10:13:55,080 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-10-17 10:13:55,080 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states and 50 transitions. Stem has 4 letters. Loop has 2 letters. [2022-10-17 10:13:55,081 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-10-17 10:13:55,081 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states and 50 transitions. Stem has 2 letters. Loop has 4 letters. [2022-10-17 10:13:55,081 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-10-17 10:13:55,082 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 58 states and 81 transitions. [2022-10-17 10:13:55,087 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 10 [2022-10-17 10:13:55,091 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 58 states to 25 states and 35 transitions. [2022-10-17 10:13:55,092 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 13 [2022-10-17 10:13:55,092 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 14 [2022-10-17 10:13:55,092 INFO L73 IsDeterministic]: Start isDeterministic. Operand 25 states and 35 transitions. [2022-10-17 10:13:55,093 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2022-10-17 10:13:55,093 INFO L218 hiAutomatonCegarLoop]: Abstraction has 25 states and 35 transitions. [2022-10-17 10:13:55,108 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25 states and 35 transitions. [2022-10-17 10:13:55,117 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25 to 22. [2022-10-17 10:13:55,118 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 22 states, 22 states have (on average 1.4545454545454546) internal successors, (32), 21 states have internal predecessors, (32), 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) [2022-10-17 10:13:55,119 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 22 states and 32 transitions. [2022-10-17 10:13:55,120 INFO L240 hiAutomatonCegarLoop]: Abstraction has 22 states and 32 transitions. [2022-10-17 10:13:55,120 INFO L428 stractBuchiCegarLoop]: Abstraction has 22 states and 32 transitions. [2022-10-17 10:13:55,120 INFO L335 stractBuchiCegarLoop]: ======== Iteration 2 ============ [2022-10-17 10:13:55,120 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 22 states and 32 transitions. [2022-10-17 10:13:55,121 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 9 [2022-10-17 10:13:55,121 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-10-17 10:13:55,121 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-10-17 10:13:55,122 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1] [2022-10-17 10:13:55,122 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [2, 2, 1, 1, 1, 1] [2022-10-17 10:13:55,122 INFO L748 eck$LassoCheckResult]: Stem: 121#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true; 122#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet0#1, main_#t~nondet1#1, main_#t~nondet2#1, main_~x~0#1, main_~y~0#1, main_~res~0#1;havoc main_~x~0#1;havoc main_~y~0#1;havoc main_~res~0#1;main_~x~0#1 := main_#t~nondet0#1;havoc main_#t~nondet0#1;main_~y~0#1 := main_#t~nondet1#1;havoc main_#t~nondet1#1; 129#L17-8 assume !!(main_~x~0#1 >= main_~y~0#1 && main_~y~0#1 > 0); 128#L17 [2022-10-17 10:13:55,122 INFO L750 eck$LassoCheckResult]: Loop: 128#L17 assume !(0 == main_~x~0#1 - 1 || 0 == main_~y~0#1); 116#L17-2 assume !(1 == main_~x~0#1 - 1 && (0 == main_~y~0#1 || 1 == main_~y~0#1)); 117#L17-4 assume !((0 == main_~x~0#1 - 1 || 1 == main_~x~0#1 - 1) && 1 == main_~y~0#1); 123#L17-6 assume !(main_~x~0#1 - 1 >= 0 && main_~y~0#1 >= 0);main_~x~0#1 := main_#t~nondet2#1;havoc main_#t~nondet2#1; 124#L17-8 assume !!(main_~x~0#1 >= main_~y~0#1 && main_~y~0#1 > 0); 111#L17 assume !(0 == main_~x~0#1 - 1 || 0 == main_~y~0#1); 112#L17-2 assume 1 == main_~x~0#1 - 1 && (0 == main_~y~0#1 || 1 == main_~y~0#1);main_~x~0#1 := main_~y~0#1; 127#L17-8 assume !!(main_~x~0#1 >= main_~y~0#1 && main_~y~0#1 > 0); 128#L17 [2022-10-17 10:13:55,123 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-17 10:13:55,123 INFO L85 PathProgramCache]: Analyzing trace with hash 29864, now seen corresponding path program 1 times [2022-10-17 10:13:55,123 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-17 10:13:55,124 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [841562345] [2022-10-17 10:13:55,124 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-17 10:13:55,124 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 10:13:55,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-10-17 10:13:55,128 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-10-17 10:13:55,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-10-17 10:13:55,132 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-10-17 10:13:55,132 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-17 10:13:55,133 INFO L85 PathProgramCache]: Analyzing trace with hash -1756221304, now seen corresponding path program 1 times [2022-10-17 10:13:55,133 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-17 10:13:55,133 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [678425952] [2022-10-17 10:13:55,133 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-17 10:13:55,134 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 10:13:55,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-10-17 10:13:55,143 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-10-17 10:13:55,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-10-17 10:13:55,151 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-10-17 10:13:55,152 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-17 10:13:55,152 INFO L85 PathProgramCache]: Analyzing trace with hash 1380126255, now seen corresponding path program 1 times [2022-10-17 10:13:55,152 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-17 10:13:55,153 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [329489345] [2022-10-17 10:13:55,153 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-17 10:13:55,153 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 10:13:55,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:13:55,288 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-10-17 10:13:55,289 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-17 10:13:55,289 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [329489345] [2022-10-17 10:13:55,290 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [329489345] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-17 10:13:55,290 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-17 10:13:55,290 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-17 10:13:55,290 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [135253901] [2022-10-17 10:13:55,291 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-17 10:13:55,352 INFO L210 LassoAnalysis]: Preferences: [2022-10-17 10:13:55,352 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-10-17 10:13:55,352 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-10-17 10:13:55,352 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-10-17 10:13:55,353 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2022-10-17 10:13:55,353 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-10-17 10:13:55,353 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-10-17 10:13:55,353 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-10-17 10:13:55,353 INFO L133 ssoRankerPreferences]: Filename of dumped script: and-05.c_Iteration2_Loop [2022-10-17 10:13:55,353 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-10-17 10:13:55,354 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-10-17 10:13:55,355 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-10-17 10:13:55,359 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-10-17 10:13:55,397 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-10-17 10:13:55,397 INFO L404 LassoAnalysis]: Checking for nontermination... [2022-10-17 10:13:55,398 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-10-17 10:13:55,398 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b9b6e7df-47e6-4797-99bc-56e0e34b78de/bin/uautomizer-J5u9QxTXDZ/z3 [2022-10-17 10:13:55,399 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b9b6e7df-47e6-4797-99bc-56e0e34b78de/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-10-17 10:13:55,407 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-10-17 10:13:55,407 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-10-17 10:13:55,418 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b9b6e7df-47e6-4797-99bc-56e0e34b78de/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Waiting until timeout for monitored process [2022-10-17 10:13:55,427 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2022-10-17 10:13:55,428 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#t~nondet2#1=2} Honda state: {ULTIMATE.start_main_#t~nondet2#1=2} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2022-10-17 10:13:55,465 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b9b6e7df-47e6-4797-99bc-56e0e34b78de/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Ended with exit code 0 [2022-10-17 10:13:55,466 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-10-17 10:13:55,466 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b9b6e7df-47e6-4797-99bc-56e0e34b78de/bin/uautomizer-J5u9QxTXDZ/z3 [2022-10-17 10:13:55,468 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b9b6e7df-47e6-4797-99bc-56e0e34b78de/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-10-17 10:13:55,470 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-10-17 10:13:55,470 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-10-17 10:13:55,481 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b9b6e7df-47e6-4797-99bc-56e0e34b78de/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Waiting until timeout for monitored process [2022-10-17 10:13:55,532 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b9b6e7df-47e6-4797-99bc-56e0e34b78de/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Forceful destruction successful, exit code 0 [2022-10-17 10:13:55,533 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-10-17 10:13:55,533 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b9b6e7df-47e6-4797-99bc-56e0e34b78de/bin/uautomizer-J5u9QxTXDZ/z3 [2022-10-17 10:13:55,534 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b9b6e7df-47e6-4797-99bc-56e0e34b78de/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-10-17 10:13:55,546 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2022-10-17 10:13:55,547 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-10-17 10:13:55,575 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b9b6e7df-47e6-4797-99bc-56e0e34b78de/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Waiting until timeout for monitored process [2022-10-17 10:13:55,658 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2022-10-17 10:13:55,666 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b9b6e7df-47e6-4797-99bc-56e0e34b78de/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Forceful destruction successful, exit code 0 [2022-10-17 10:13:55,671 INFO L210 LassoAnalysis]: Preferences: [2022-10-17 10:13:55,671 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-10-17 10:13:55,671 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-10-17 10:13:55,671 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-10-17 10:13:55,672 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2022-10-17 10:13:55,672 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-10-17 10:13:55,672 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-10-17 10:13:55,672 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-10-17 10:13:55,672 INFO L133 ssoRankerPreferences]: Filename of dumped script: and-05.c_Iteration2_Loop [2022-10-17 10:13:55,672 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-10-17 10:13:55,672 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-10-17 10:13:55,673 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-10-17 10:13:55,678 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-10-17 10:13:55,719 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-10-17 10:13:55,719 INFO L490 LassoAnalysis]: Using template 'affine'. [2022-10-17 10:13:55,720 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-10-17 10:13:55,720 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b9b6e7df-47e6-4797-99bc-56e0e34b78de/bin/uautomizer-J5u9QxTXDZ/z3 [2022-10-17 10:13:55,721 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b9b6e7df-47e6-4797-99bc-56e0e34b78de/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-10-17 10:13:55,727 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 [2022-10-17 10:13:55,736 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-10-17 10:13:55,736 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-10-17 10:13:55,736 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-10-17 10:13:55,736 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-10-17 10:13:55,736 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-10-17 10:13:55,738 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-10-17 10:13:55,738 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-10-17 10:13:55,741 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b9b6e7df-47e6-4797-99bc-56e0e34b78de/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Waiting until timeout for monitored process [2022-10-17 10:13:55,752 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-10-17 10:13:55,788 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b9b6e7df-47e6-4797-99bc-56e0e34b78de/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Forceful destruction successful, exit code 0 [2022-10-17 10:13:55,789 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-10-17 10:13:55,789 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b9b6e7df-47e6-4797-99bc-56e0e34b78de/bin/uautomizer-J5u9QxTXDZ/z3 [2022-10-17 10:13:55,790 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b9b6e7df-47e6-4797-99bc-56e0e34b78de/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-10-17 10:13:55,798 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 [2022-10-17 10:13:55,807 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-10-17 10:13:55,807 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-10-17 10:13:55,808 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-10-17 10:13:55,808 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-10-17 10:13:55,808 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-10-17 10:13:55,810 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-10-17 10:13:55,810 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-10-17 10:13:55,813 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b9b6e7df-47e6-4797-99bc-56e0e34b78de/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Waiting until timeout for monitored process [2022-10-17 10:13:55,826 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2022-10-17 10:13:55,829 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2022-10-17 10:13:55,829 INFO L444 ModelExtractionUtils]: 1 out of 4 variables were initially zero. Simplification set additionally 0 variables to zero. [2022-10-17 10:13:55,829 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-10-17 10:13:55,829 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b9b6e7df-47e6-4797-99bc-56e0e34b78de/bin/uautomizer-J5u9QxTXDZ/z3 [2022-10-17 10:13:55,830 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b9b6e7df-47e6-4797-99bc-56e0e34b78de/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-10-17 10:13:55,836 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2022-10-17 10:13:55,836 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2022-10-17 10:13:55,836 INFO L513 LassoAnalysis]: Proved termination. [2022-10-17 10:13:55,836 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~x~0#1) = -2*ULTIMATE.start_main_~x~0#1 + 1 Supporting invariants [] [2022-10-17 10:13:55,857 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b9b6e7df-47e6-4797-99bc-56e0e34b78de/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Waiting until timeout for monitored process [2022-10-17 10:13:55,872 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b9b6e7df-47e6-4797-99bc-56e0e34b78de/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Forceful destruction successful, exit code 0 [2022-10-17 10:13:55,873 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2022-10-17 10:13:55,890 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-17 10:13:55,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:13:55,894 INFO L263 TraceCheckSpWp]: Trace formula consists of 6 conjuncts, 2 conjunts are in the unsatisfiable core [2022-10-17 10:13:55,895 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-17 10:13:55,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:13:55,906 INFO L263 TraceCheckSpWp]: Trace formula consists of 20 conjuncts, 5 conjunts are in the unsatisfiable core [2022-10-17 10:13:55,907 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-17 10:13:56,007 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 1 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-17 10:13:56,010 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 [2022-10-17 10:13:56,010 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 22 states and 32 transitions. cyclomatic complexity: 12 Second operand has 6 states, 6 states have (on average 1.8333333333333333) internal successors, (11), 6 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) [2022-10-17 10:13:56,057 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b9b6e7df-47e6-4797-99bc-56e0e34b78de/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Forceful destruction successful, exit code 0 [2022-10-17 10:13:56,082 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 22 states and 32 transitions. cyclomatic complexity: 12. Second operand has 6 states, 6 states have (on average 1.8333333333333333) internal successors, (11), 6 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) Result 50 states and 70 transitions. Complement of second has 7 states. [2022-10-17 10:13:56,084 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 [2022-10-17 10:13:56,099 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6 states, 6 states have (on average 1.8333333333333333) internal successors, (11), 6 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) [2022-10-17 10:13:56,100 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 8 transitions. [2022-10-17 10:13:56,100 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 8 transitions. Stem has 3 letters. Loop has 8 letters. [2022-10-17 10:13:56,101 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-10-17 10:13:56,102 INFO L681 stractBuchiCegarLoop]: Bad chosen interpolant automaton: word not accepted [2022-10-17 10:13:56,115 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-17 10:13:56,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:13:56,121 INFO L263 TraceCheckSpWp]: Trace formula consists of 6 conjuncts, 2 conjunts are in the unsatisfiable core [2022-10-17 10:13:56,122 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-17 10:13:56,134 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b9b6e7df-47e6-4797-99bc-56e0e34b78de/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Forceful destruction successful, exit code 0 [2022-10-17 10:13:56,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:13:56,140 INFO L263 TraceCheckSpWp]: Trace formula consists of 20 conjuncts, 5 conjunts are in the unsatisfiable core [2022-10-17 10:13:56,141 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-17 10:13:56,253 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 1 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-17 10:13:56,254 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and with honda bouncer for loop.1 stem predicates 4 loop predicates [2022-10-17 10:13:56,255 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 22 states and 32 transitions. cyclomatic complexity: 12 Second operand has 6 states, 6 states have (on average 1.8333333333333333) internal successors, (11), 6 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) [2022-10-17 10:13:56,303 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 22 states and 32 transitions. cyclomatic complexity: 12. Second operand has 6 states, 6 states have (on average 1.8333333333333333) internal successors, (11), 6 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) Result 50 states and 70 transitions. Complement of second has 7 states. [2022-10-17 10:13:56,304 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 [2022-10-17 10:13:56,305 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6 states, 6 states have (on average 1.8333333333333333) internal successors, (11), 6 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) [2022-10-17 10:13:56,306 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 8 transitions. [2022-10-17 10:13:56,306 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 8 transitions. Stem has 3 letters. Loop has 8 letters. [2022-10-17 10:13:56,306 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-10-17 10:13:56,306 INFO L681 stractBuchiCegarLoop]: Bad chosen interpolant automaton: word not accepted [2022-10-17 10:13:56,320 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-17 10:13:56,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:13:56,326 INFO L263 TraceCheckSpWp]: Trace formula consists of 6 conjuncts, 2 conjunts are in the unsatisfiable core [2022-10-17 10:13:56,327 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-17 10:13:56,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:13:56,340 INFO L263 TraceCheckSpWp]: Trace formula consists of 20 conjuncts, 5 conjunts are in the unsatisfiable core [2022-10-17 10:13:56,341 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-17 10:13:56,442 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 1 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-17 10:13:56,444 INFO L141 lantAutomatonBouncer]: Defining Buchi interpolant automaton with scrooge nondeterminism in stemwith honda bouncer for stem and without honda bouncer for loop.1 stem predicates 4 loop predicates [2022-10-17 10:13:56,444 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 22 states and 32 transitions. cyclomatic complexity: 12 Second operand has 6 states, 6 states have (on average 1.8333333333333333) internal successors, (11), 6 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) [2022-10-17 10:13:56,485 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 22 states and 32 transitions. cyclomatic complexity: 12. Second operand has 6 states, 6 states have (on average 1.8333333333333333) internal successors, (11), 6 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) Result 34 states and 46 transitions. Complement of second has 6 states. [2022-10-17 10:13:56,486 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 [2022-10-17 10:13:56,487 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6 states, 6 states have (on average 1.8333333333333333) internal successors, (11), 6 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) [2022-10-17 10:13:56,488 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 16 transitions. [2022-10-17 10:13:56,488 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 16 transitions. Stem has 3 letters. Loop has 8 letters. [2022-10-17 10:13:56,489 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-10-17 10:13:56,489 INFO L681 stractBuchiCegarLoop]: Bad chosen interpolant automaton: word not accepted [2022-10-17 10:13:56,503 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-17 10:13:56,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:13:56,508 INFO L263 TraceCheckSpWp]: Trace formula consists of 6 conjuncts, 2 conjunts are in the unsatisfiable core [2022-10-17 10:13:56,509 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-17 10:13:56,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:13:56,524 INFO L263 TraceCheckSpWp]: Trace formula consists of 20 conjuncts, 5 conjunts are in the unsatisfiable core [2022-10-17 10:13:56,525 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-17 10:13:56,617 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 1 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-17 10:13:56,617 INFO L141 lantAutomatonBouncer]: Defining Buchi interpolant automaton with scrooge nondeterminism in stemwith honda bouncer for stem and with honda bouncer for loop.1 stem predicates 4 loop predicates [2022-10-17 10:13:56,618 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 22 states and 32 transitions. cyclomatic complexity: 12 Second operand has 6 states, 6 states have (on average 1.8333333333333333) internal successors, (11), 6 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) [2022-10-17 10:13:56,647 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 22 states and 32 transitions. cyclomatic complexity: 12. Second operand has 6 states, 6 states have (on average 1.8333333333333333) internal successors, (11), 6 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) Result 34 states and 46 transitions. Complement of second has 6 states. [2022-10-17 10:13:56,648 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 [2022-10-17 10:13:56,651 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6 states, 6 states have (on average 1.8333333333333333) internal successors, (11), 6 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) [2022-10-17 10:13:56,652 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 16 transitions. [2022-10-17 10:13:56,652 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 16 transitions. Stem has 3 letters. Loop has 8 letters. [2022-10-17 10:13:56,653 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-10-17 10:13:56,653 INFO L681 stractBuchiCegarLoop]: Bad chosen interpolant automaton: word not accepted [2022-10-17 10:13:56,670 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-17 10:13:56,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:13:56,676 INFO L263 TraceCheckSpWp]: Trace formula consists of 6 conjuncts, 2 conjunts are in the unsatisfiable core [2022-10-17 10:13:56,676 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-17 10:13:56,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:13:56,696 INFO L263 TraceCheckSpWp]: Trace formula consists of 20 conjuncts, 5 conjunts are in the unsatisfiable core [2022-10-17 10:13:56,696 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-17 10:13:56,769 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 1 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-17 10:13:56,771 INFO L141 lantAutomatonBouncer]: Defining Buchi interpolant automaton with scrooge nondeterminism in stemin loopwithout honda bouncer for stem and without honda bouncer for loop.1 stem predicates 4 loop predicates [2022-10-17 10:13:56,772 INFO L104 BuchiDifferenceFKV]: Start buchiDifferenceFKV. First operand 22 states and 32 transitions. cyclomatic complexity: 12 Second operand has 6 states, 6 states have (on average 1.8333333333333333) internal successors, (11), 6 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) [2022-10-17 10:13:56,994 INFO L108 BuchiDifferenceFKV]: Finished buchiDifferenceFKV. First operand 22 states and 32 transitions. cyclomatic complexity: 12 Second operand has 6 states, 6 states have (on average 1.8333333333333333) internal successors, (11), 6 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) Result 454 states and 789 transitions. Complement of second has 74 states 12 powerset states62 rank states. The highest rank that occured is 5 [2022-10-17 10:13:56,994 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 7 states 1 stem states 4 non-accepting loop states 1 accepting loop states [2022-10-17 10:13:56,996 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6 states, 6 states have (on average 1.8333333333333333) internal successors, (11), 6 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) [2022-10-17 10:13:56,999 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 54 transitions. [2022-10-17 10:13:56,999 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 7 states and 54 transitions. Stem has 3 letters. Loop has 8 letters. [2022-10-17 10:13:57,004 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-10-17 10:13:57,004 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 7 states and 54 transitions. Stem has 11 letters. Loop has 8 letters. [2022-10-17 10:13:57,006 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-10-17 10:13:57,006 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 7 states and 54 transitions. Stem has 3 letters. Loop has 16 letters. [2022-10-17 10:13:57,008 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-10-17 10:13:57,008 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 454 states and 789 transitions. [2022-10-17 10:13:57,033 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2022-10-17 10:13:57,035 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 454 states to 0 states and 0 transitions. [2022-10-17 10:13:57,035 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2022-10-17 10:13:57,035 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2022-10-17 10:13:57,035 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2022-10-17 10:13:57,036 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-10-17 10:13:57,036 INFO L218 hiAutomatonCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-10-17 10:13:57,036 INFO L240 hiAutomatonCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-10-17 10:13:57,036 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-17 10:13:57,039 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-17 10:13:57,039 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-17 10:13:57,040 INFO L87 Difference]: Start difference. First operand 0 states and 0 transitions. Second operand has 3 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 3 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-17 10:13:57,043 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-17 10:13:57,043 INFO L93 Difference]: Finished difference Result 0 states and 0 transitions. [2022-10-17 10:13:57,043 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 0 states and 0 transitions. [2022-10-17 10:13:57,044 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2022-10-17 10:13:57,044 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 0 states to 0 states and 0 transitions. [2022-10-17 10:13:57,044 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2022-10-17 10:13:57,044 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2022-10-17 10:13:57,044 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2022-10-17 10:13:57,044 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-10-17 10:13:57,045 INFO L218 hiAutomatonCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-10-17 10:13:57,045 INFO L240 hiAutomatonCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-10-17 10:13:57,045 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-10-17 10:13:57,047 INFO L428 stractBuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-10-17 10:13:57,047 INFO L335 stractBuchiCegarLoop]: ======== Iteration 3 ============ [2022-10-17 10:13:57,048 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2022-10-17 10:13:57,048 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2022-10-17 10:13:57,048 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2022-10-17 10:13:57,061 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 17.10 10:13:57 BoogieIcfgContainer [2022-10-17 10:13:57,062 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2022-10-17 10:13:57,062 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-10-17 10:13:57,062 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-10-17 10:13:57,062 INFO L275 PluginConnector]: Witness Printer initialized [2022-10-17 10:13:57,063 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.10 10:13:53" (3/4) ... [2022-10-17 10:13:57,066 INFO L140 WitnessPrinter]: No result that supports witness generation found [2022-10-17 10:13:57,066 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-10-17 10:13:57,067 INFO L158 Benchmark]: Toolchain (without parser) took 3862.15ms. Allocated memory was 104.9MB in the beginning and 132.1MB in the end (delta: 27.3MB). Free memory was 74.2MB in the beginning and 97.6MB in the end (delta: -23.5MB). Peak memory consumption was 2.2MB. Max. memory is 16.1GB. [2022-10-17 10:13:57,068 INFO L158 Benchmark]: CDTParser took 0.28ms. Allocated memory is still 104.9MB. Free memory is still 57.2MB. There was no memory consumed. Max. memory is 16.1GB. [2022-10-17 10:13:57,069 INFO L158 Benchmark]: CACSL2BoogieTranslator took 280.88ms. Allocated memory was 104.9MB in the beginning and 132.1MB in the end (delta: 27.3MB). Free memory was 73.9MB in the beginning and 108.2MB in the end (delta: -34.3MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2022-10-17 10:13:57,069 INFO L158 Benchmark]: Boogie Procedure Inliner took 32.31ms. Allocated memory is still 132.1MB. Free memory was 108.2MB in the beginning and 107.0MB in the end (delta: 1.2MB). There was no memory consumed. Max. memory is 16.1GB. [2022-10-17 10:13:57,072 INFO L158 Benchmark]: Boogie Preprocessor took 21.79ms. Allocated memory is still 132.1MB. Free memory was 107.0MB in the beginning and 106.1MB in the end (delta: 901.8kB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-10-17 10:13:57,073 INFO L158 Benchmark]: RCFGBuilder took 305.98ms. Allocated memory is still 132.1MB. Free memory was 106.1MB in the beginning and 97.2MB in the end (delta: 8.8MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2022-10-17 10:13:57,074 INFO L158 Benchmark]: BuchiAutomizer took 3202.53ms. Allocated memory is still 132.1MB. Free memory was 96.8MB in the beginning and 98.6MB in the end (delta: -1.8MB). Peak memory consumption was 1.2MB. Max. memory is 16.1GB. [2022-10-17 10:13:57,077 INFO L158 Benchmark]: Witness Printer took 4.23ms. Allocated memory is still 132.1MB. Free memory was 98.6MB in the beginning and 97.6MB in the end (delta: 940.1kB). There was no memory consumed. Max. memory is 16.1GB. [2022-10-17 10:13:57,085 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.28ms. Allocated memory is still 104.9MB. Free memory is still 57.2MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 280.88ms. Allocated memory was 104.9MB in the beginning and 132.1MB in the end (delta: 27.3MB). Free memory was 73.9MB in the beginning and 108.2MB in the end (delta: -34.3MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 32.31ms. Allocated memory is still 132.1MB. Free memory was 108.2MB in the beginning and 107.0MB in the end (delta: 1.2MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 21.79ms. Allocated memory is still 132.1MB. Free memory was 107.0MB in the beginning and 106.1MB in the end (delta: 901.8kB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 305.98ms. Allocated memory is still 132.1MB. Free memory was 106.1MB in the beginning and 97.2MB in the end (delta: 8.8MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * BuchiAutomizer took 3202.53ms. Allocated memory is still 132.1MB. Free memory was 96.8MB in the beginning and 98.6MB in the end (delta: -1.8MB). Peak memory consumption was 1.2MB. Max. memory is 16.1GB. * Witness Printer took 4.23ms. Allocated memory is still 132.1MB. Free memory was 98.6MB in the beginning and 97.6MB in the end (delta: 940.1kB). There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 3 terminating modules (1 trivial, 1 deterministic, 1 nondeterministic). One deterministic module has affine ranking function x and consists of 6 locations. One nondeterministic module has affine ranking function -2 * x + 1 and consists of 7 locations. 1 modules have a trivial ranking function, the largest among these consists of 3 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 3.1s and 3 iterations. TraceHistogramMax:2. Analysis of lassos took 1.6s. Construction of modules took 0.1s. Büchi inclusion checks took 1.1s. Highest rank in rank-based complementation 5. Minimization of det autom 2. Minimization of nondet autom 1. Automata minimization 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 3 StatesRemovedByMinimization, 1 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had -1 states and ocurred in iteration -1. Nontrivial modules had stage [1, 0, 0, 0, 1]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 1/3 HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 101 SdHoareTripleChecker+Valid, 0.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 86 mSDsluCounter, 65 SdHoareTripleChecker+Invalid, 0.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 15 mSDsCounter, 31 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 177 IncrementalHoareTripleChecker+Invalid, 208 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 31 mSolverCounterUnsat, 50 mSDtfsCounter, 177 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown LassoAnalysisResults: nont0 unkn0 SFLI0 SFLT1 conc0 concLT1 SILN0 SILU0 SILI0 SILT0 lasso0 LassoPreprocessingBenchmarks: Lassos: inital14 mio100 ax100 hnf100 lsp89 ukn100 mio100 lsp100 div100 bol100 ite100 ukn100 eq161 hnf90 smp92 dnf100 smp100 tf111 neg97 sie110 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: sat Degree: 0 Time: 117ms VariablesStem: 0 VariablesLoop: 3 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 0 MotzkinApplications: 2 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 1 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 2 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.4s InitialAbstractionConstructionTime: 0.0s - TerminationAnalysisResult: Termination proven Buchi Automizer proved that your program is terminating RESULT: Ultimate proved your program to be correct! [2022-10-17 10:13:57,134 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b9b6e7df-47e6-4797-99bc-56e0e34b78de/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE