./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/loop-invgen/up.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 2329fc70 Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e57d76b1-c50c-4fef-87a0-105f3f2e4bee/bin/uautomizer-uyxdKDjOR8/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e57d76b1-c50c-4fef-87a0-105f3f2e4bee/bin/uautomizer-uyxdKDjOR8/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e57d76b1-c50c-4fef-87a0-105f3f2e4bee/bin/uautomizer-uyxdKDjOR8/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e57d76b1-c50c-4fef-87a0-105f3f2e4bee/bin/uautomizer-uyxdKDjOR8/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/loop-invgen/up.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e57d76b1-c50c-4fef-87a0-105f3f2e4bee/bin/uautomizer-uyxdKDjOR8/config/svcomp-Termination-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e57d76b1-c50c-4fef-87a0-105f3f2e4bee/bin/uautomizer-uyxdKDjOR8 --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(F end) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash ff5c10c83c8d29dcc2c2798035fa2754df224d2313ad9c91b6ee5bb6ca3d9a9f --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-2329fc7 [2022-12-13 22:20:16,388 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-13 22:20:16,390 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-13 22:20:16,407 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-13 22:20:16,407 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-13 22:20:16,408 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-13 22:20:16,409 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-13 22:20:16,411 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-13 22:20:16,412 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-13 22:20:16,413 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-13 22:20:16,413 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-13 22:20:16,414 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-13 22:20:16,415 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-13 22:20:16,417 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-13 22:20:16,418 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-13 22:20:16,419 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-13 22:20:16,420 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-13 22:20:16,421 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-13 22:20:16,422 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-13 22:20:16,424 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-13 22:20:16,425 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-13 22:20:16,426 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-13 22:20:16,427 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-13 22:20:16,428 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-13 22:20:16,431 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-13 22:20:16,431 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-13 22:20:16,432 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-13 22:20:16,432 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-13 22:20:16,433 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-13 22:20:16,434 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-13 22:20:16,434 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-13 22:20:16,434 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-13 22:20:16,435 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-13 22:20:16,436 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-13 22:20:16,437 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-13 22:20:16,437 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-13 22:20:16,437 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-13 22:20:16,438 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-13 22:20:16,438 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-13 22:20:16,438 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-13 22:20:16,439 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-13 22:20:16,440 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e57d76b1-c50c-4fef-87a0-105f3f2e4bee/bin/uautomizer-uyxdKDjOR8/config/svcomp-Termination-32bit-Automizer_Default.epf [2022-12-13 22:20:16,461 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-13 22:20:16,461 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-13 22:20:16,461 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-12-13 22:20:16,461 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-12-13 22:20:16,462 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-12-13 22:20:16,462 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-12-13 22:20:16,463 INFO L138 SettingsManager]: * Use SBE=true [2022-12-13 22:20:16,463 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2022-12-13 22:20:16,463 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2022-12-13 22:20:16,463 INFO L138 SettingsManager]: * Use old map elimination=false [2022-12-13 22:20:16,463 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2022-12-13 22:20:16,463 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2022-12-13 22:20:16,463 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2022-12-13 22:20:16,464 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-13 22:20:16,464 INFO L138 SettingsManager]: * sizeof long=4 [2022-12-13 22:20:16,464 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-12-13 22:20:16,464 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-13 22:20:16,464 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-12-13 22:20:16,464 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-13 22:20:16,464 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2022-12-13 22:20:16,464 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2022-12-13 22:20:16,465 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2022-12-13 22:20:16,465 INFO L138 SettingsManager]: * sizeof long double=12 [2022-12-13 22:20:16,465 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-13 22:20:16,465 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2022-12-13 22:20:16,465 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-13 22:20:16,465 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2022-12-13 22:20:16,465 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-13 22:20:16,465 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-12-13 22:20:16,466 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-13 22:20:16,466 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-12-13 22:20:16,466 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2022-12-13 22:20:16,467 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_e57d76b1-c50c-4fef-87a0-105f3f2e4bee/bin/uautomizer-uyxdKDjOR8/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e57d76b1-c50c-4fef-87a0-105f3f2e4bee/bin/uautomizer-uyxdKDjOR8 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> ff5c10c83c8d29dcc2c2798035fa2754df224d2313ad9c91b6ee5bb6ca3d9a9f [2022-12-13 22:20:16,649 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-13 22:20:16,666 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-13 22:20:16,669 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-13 22:20:16,670 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-13 22:20:16,670 INFO L275 PluginConnector]: CDTParser initialized [2022-12-13 22:20:16,672 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e57d76b1-c50c-4fef-87a0-105f3f2e4bee/bin/uautomizer-uyxdKDjOR8/../../sv-benchmarks/c/loop-invgen/up.i [2022-12-13 22:20:19,223 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-13 22:20:19,406 INFO L351 CDTParser]: Found 1 translation units. [2022-12-13 22:20:19,407 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e57d76b1-c50c-4fef-87a0-105f3f2e4bee/sv-benchmarks/c/loop-invgen/up.i [2022-12-13 22:20:19,413 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e57d76b1-c50c-4fef-87a0-105f3f2e4bee/bin/uautomizer-uyxdKDjOR8/data/f27aa3629/701c9b4fde95429aaa7c9e29ab3a8278/FLAG19f813582 [2022-12-13 22:20:19,782 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e57d76b1-c50c-4fef-87a0-105f3f2e4bee/bin/uautomizer-uyxdKDjOR8/data/f27aa3629/701c9b4fde95429aaa7c9e29ab3a8278 [2022-12-13 22:20:19,784 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-13 22:20:19,785 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-12-13 22:20:19,786 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-13 22:20:19,786 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-13 22:20:19,789 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-13 22:20:19,790 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.12 10:20:19" (1/1) ... [2022-12-13 22:20:19,791 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@61f2352d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 10:20:19, skipping insertion in model container [2022-12-13 22:20:19,791 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.12 10:20:19" (1/1) ... [2022-12-13 22:20:19,799 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-13 22:20:19,813 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-13 22:20:19,916 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e57d76b1-c50c-4fef-87a0-105f3f2e4bee/sv-benchmarks/c/loop-invgen/up.i[893,906] [2022-12-13 22:20:19,920 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-13 22:20:19,929 INFO L203 MainTranslator]: Completed pre-run [2022-12-13 22:20:19,938 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e57d76b1-c50c-4fef-87a0-105f3f2e4bee/sv-benchmarks/c/loop-invgen/up.i[893,906] [2022-12-13 22:20:19,939 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-13 22:20:19,949 INFO L208 MainTranslator]: Completed translation [2022-12-13 22:20:19,949 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 10:20:19 WrapperNode [2022-12-13 22:20:19,949 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-13 22:20:19,950 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-13 22:20:19,950 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-13 22:20:19,950 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-13 22:20:19,956 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 10:20:19" (1/1) ... [2022-12-13 22:20:19,961 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 10:20:19" (1/1) ... [2022-12-13 22:20:19,972 INFO L138 Inliner]: procedures = 16, calls = 7, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 42 [2022-12-13 22:20:19,972 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-13 22:20:19,973 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-13 22:20:19,973 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-13 22:20:19,973 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-13 22:20:19,979 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 10:20:19" (1/1) ... [2022-12-13 22:20:19,979 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 10:20:19" (1/1) ... [2022-12-13 22:20:19,980 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 10:20:19" (1/1) ... [2022-12-13 22:20:19,980 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 10:20:19" (1/1) ... [2022-12-13 22:20:19,982 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 10:20:19" (1/1) ... [2022-12-13 22:20:19,984 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 10:20:19" (1/1) ... [2022-12-13 22:20:19,985 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 10:20:19" (1/1) ... [2022-12-13 22:20:19,985 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 10:20:19" (1/1) ... [2022-12-13 22:20:19,986 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-13 22:20:19,987 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-13 22:20:19,987 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-13 22:20:19,987 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-13 22:20:19,988 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 10:20:19" (1/1) ... [2022-12-13 22:20:19,992 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-12-13 22:20:20,002 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e57d76b1-c50c-4fef-87a0-105f3f2e4bee/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 22:20:20,014 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e57d76b1-c50c-4fef-87a0-105f3f2e4bee/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-12-13 22:20:20,015 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e57d76b1-c50c-4fef-87a0-105f3f2e4bee/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2022-12-13 22:20:20,043 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-13 22:20:20,043 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-12-13 22:20:20,043 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-13 22:20:20,043 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-13 22:20:20,093 INFO L235 CfgBuilder]: Building ICFG [2022-12-13 22:20:20,094 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-13 22:20:20,158 INFO L276 CfgBuilder]: Performing block encoding [2022-12-13 22:20:20,162 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-13 22:20:20,162 INFO L300 CfgBuilder]: Removed 2 assume(true) statements. [2022-12-13 22:20:20,164 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 10:20:20 BoogieIcfgContainer [2022-12-13 22:20:20,164 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-13 22:20:20,165 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2022-12-13 22:20:20,165 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2022-12-13 22:20:20,168 INFO L275 PluginConnector]: BuchiAutomizer initialized [2022-12-13 22:20:20,168 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-12-13 22:20:20,168 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 13.12 10:20:19" (1/3) ... [2022-12-13 22:20:20,169 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@38faad06 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 13.12 10:20:20, skipping insertion in model container [2022-12-13 22:20:20,169 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-12-13 22:20:20,169 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 10:20:19" (2/3) ... [2022-12-13 22:20:20,169 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@38faad06 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 13.12 10:20:20, skipping insertion in model container [2022-12-13 22:20:20,169 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-12-13 22:20:20,169 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 10:20:20" (3/3) ... [2022-12-13 22:20:20,171 INFO L332 chiAutomizerObserver]: Analyzing ICFG up.i [2022-12-13 22:20:20,211 INFO L303 stractBuchiCegarLoop]: Interprodecural is true [2022-12-13 22:20:20,211 INFO L304 stractBuchiCegarLoop]: Hoare is false [2022-12-13 22:20:20,211 INFO L305 stractBuchiCegarLoop]: Compute interpolants for ForwardPredicates [2022-12-13 22:20:20,211 INFO L306 stractBuchiCegarLoop]: Backedges is STRAIGHT_LINE [2022-12-13 22:20:20,211 INFO L307 stractBuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2022-12-13 22:20:20,211 INFO L308 stractBuchiCegarLoop]: Difference is false [2022-12-13 22:20:20,211 INFO L309 stractBuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2022-12-13 22:20:20,211 INFO L313 stractBuchiCegarLoop]: ======== Iteration 0 == of CEGAR loop == BuchiAutomatonCegarLoop ======== [2022-12-13 22:20:20,214 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 11 states, 10 states have (on average 1.5) internal successors, (15), 10 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 22:20:20,227 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 5 [2022-12-13 22:20:20,227 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-12-13 22:20:20,227 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-12-13 22:20:20,231 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1] [2022-12-13 22:20:20,231 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1] [2022-12-13 22:20:20,231 INFO L335 stractBuchiCegarLoop]: ======== Iteration 1 ============ [2022-12-13 22:20:20,232 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 11 states, 10 states have (on average 1.5) internal successors, (15), 10 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 22:20:20,232 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 5 [2022-12-13 22:20:20,232 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-12-13 22:20:20,232 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-12-13 22:20:20,233 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1] [2022-12-13 22:20:20,233 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1] [2022-12-13 22:20:20,238 INFO L748 eck$LassoCheckResult]: Stem: 6#$Ultimate##0true assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int(48, 1, 0, 1);call write~init~int(0, 1, 1, 1);call #Ultimate.allocInit(9, 2); 7#L-1true assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet1#1, main_#t~post2#1, main_#t~post3#1, main_#t~post4#1, main_#t~post5#1, main_~n~0#1, main_~i~0#1, main_~k~0#1, main_~j~0#1;havoc main_~n~0#1;main_~i~0#1 := 0;main_~k~0#1 := 0;main_~n~0#1 := main_#t~nondet1#1;havoc main_#t~nondet1#1; 11#L29-2true [2022-12-13 22:20:20,238 INFO L750 eck$LassoCheckResult]: Loop: 11#L29-2true assume !!(main_~i~0#1 < main_~n~0#1);main_#t~post2#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post2#1;havoc main_#t~post2#1;main_#t~post3#1 := main_~k~0#1;main_~k~0#1 := 1 + main_#t~post3#1;havoc main_#t~post3#1; 11#L29-2true [2022-12-13 22:20:20,242 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 22:20:20,243 INFO L85 PathProgramCache]: Analyzing trace with hash 963, now seen corresponding path program 1 times [2022-12-13 22:20:20,249 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 22:20:20,250 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1431049057] [2022-12-13 22:20:20,250 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 22:20:20,250 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 22:20:20,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 22:20:20,310 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-12-13 22:20:20,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 22:20:20,327 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-12-13 22:20:20,329 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 22:20:20,330 INFO L85 PathProgramCache]: Analyzing trace with hash 42, now seen corresponding path program 1 times [2022-12-13 22:20:20,330 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 22:20:20,330 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [840067241] [2022-12-13 22:20:20,330 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 22:20:20,330 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 22:20:20,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 22:20:20,337 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-12-13 22:20:20,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 22:20:20,340 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-12-13 22:20:20,341 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 22:20:20,341 INFO L85 PathProgramCache]: Analyzing trace with hash 29864, now seen corresponding path program 1 times [2022-12-13 22:20:20,342 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 22:20:20,342 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1974285466] [2022-12-13 22:20:20,342 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 22:20:20,342 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 22:20:20,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 22:20:20,349 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-12-13 22:20:20,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 22:20:20,356 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-12-13 22:20:20,407 INFO L210 LassoAnalysis]: Preferences: [2022-12-13 22:20:20,407 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-12-13 22:20:20,407 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-12-13 22:20:20,407 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-12-13 22:20:20,407 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2022-12-13 22:20:20,408 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-12-13 22:20:20,408 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-12-13 22:20:20,408 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-12-13 22:20:20,408 INFO L133 ssoRankerPreferences]: Filename of dumped script: up.i_Iteration1_Loop [2022-12-13 22:20:20,408 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-12-13 22:20:20,408 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-12-13 22:20:20,421 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-12-13 22:20:20,432 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-12-13 22:20:20,441 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-12-13 22:20:20,444 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-12-13 22:20:20,492 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-12-13 22:20:20,492 INFO L404 LassoAnalysis]: Checking for nontermination... [2022-12-13 22:20:20,494 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-12-13 22:20:20,494 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e57d76b1-c50c-4fef-87a0-105f3f2e4bee/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 22:20:20,495 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e57d76b1-c50c-4fef-87a0-105f3f2e4bee/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-12-13 22:20:20,496 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e57d76b1-c50c-4fef-87a0-105f3f2e4bee/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Waiting until timeout for monitored process [2022-12-13 22:20:20,497 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-12-13 22:20:20,498 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-12-13 22:20:20,515 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e57d76b1-c50c-4fef-87a0-105f3f2e4bee/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Forceful destruction successful, exit code 0 [2022-12-13 22:20:20,515 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-12-13 22:20:20,515 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e57d76b1-c50c-4fef-87a0-105f3f2e4bee/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 22:20:20,517 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e57d76b1-c50c-4fef-87a0-105f3f2e4bee/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-12-13 22:20:20,518 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e57d76b1-c50c-4fef-87a0-105f3f2e4bee/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Waiting until timeout for monitored process [2022-12-13 22:20:20,519 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2022-12-13 22:20:20,519 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-12-13 22:20:20,551 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2022-12-13 22:20:20,551 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_~k~0#1=0} Honda state: {ULTIMATE.start_main_~k~0#1=0} Generalized eigenvectors: [{ULTIMATE.start_main_~k~0#1=-2}, {ULTIMATE.start_main_~k~0#1=6}, {ULTIMATE.start_main_~k~0#1=-3}] Lambdas: [4, 1, 1] Nus: [1, 0] [2022-12-13 22:20:20,554 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e57d76b1-c50c-4fef-87a0-105f3f2e4bee/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Ended with exit code 0 [2022-12-13 22:20:20,555 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-12-13 22:20:20,555 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e57d76b1-c50c-4fef-87a0-105f3f2e4bee/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 22:20:20,556 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e57d76b1-c50c-4fef-87a0-105f3f2e4bee/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-12-13 22:20:20,557 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e57d76b1-c50c-4fef-87a0-105f3f2e4bee/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Waiting until timeout for monitored process [2022-12-13 22:20:20,558 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-12-13 22:20:20,558 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-12-13 22:20:20,573 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e57d76b1-c50c-4fef-87a0-105f3f2e4bee/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Ended with exit code 0 [2022-12-13 22:20:20,573 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-12-13 22:20:20,574 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e57d76b1-c50c-4fef-87a0-105f3f2e4bee/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 22:20:20,575 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e57d76b1-c50c-4fef-87a0-105f3f2e4bee/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-12-13 22:20:20,576 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e57d76b1-c50c-4fef-87a0-105f3f2e4bee/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Waiting until timeout for monitored process [2022-12-13 22:20:20,577 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2022-12-13 22:20:20,577 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-12-13 22:20:20,700 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2022-12-13 22:20:20,703 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e57d76b1-c50c-4fef-87a0-105f3f2e4bee/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Ended with exit code 0 [2022-12-13 22:20:20,704 INFO L210 LassoAnalysis]: Preferences: [2022-12-13 22:20:20,704 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-12-13 22:20:20,704 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-12-13 22:20:20,704 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-12-13 22:20:20,704 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2022-12-13 22:20:20,704 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-12-13 22:20:20,704 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-12-13 22:20:20,704 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-12-13 22:20:20,704 INFO L133 ssoRankerPreferences]: Filename of dumped script: up.i_Iteration1_Loop [2022-12-13 22:20:20,705 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-12-13 22:20:20,705 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-12-13 22:20:20,706 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-12-13 22:20:20,709 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-12-13 22:20:20,712 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-12-13 22:20:20,718 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-12-13 22:20:20,747 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-12-13 22:20:20,751 INFO L490 LassoAnalysis]: Using template 'affine'. [2022-12-13 22:20:20,752 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-12-13 22:20:20,752 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e57d76b1-c50c-4fef-87a0-105f3f2e4bee/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 22:20:20,753 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e57d76b1-c50c-4fef-87a0-105f3f2e4bee/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-12-13 22:20:20,753 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e57d76b1-c50c-4fef-87a0-105f3f2e4bee/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Waiting until timeout for monitored process [2022-12-13 22:20:20,755 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2022-12-13 22:20:20,766 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-12-13 22:20:20,766 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-12-13 22:20:20,766 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-12-13 22:20:20,767 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-12-13 22:20:20,767 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-12-13 22:20:20,769 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-12-13 22:20:20,769 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-12-13 22:20:20,772 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-12-13 22:20:20,775 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e57d76b1-c50c-4fef-87a0-105f3f2e4bee/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Forceful destruction successful, exit code 0 [2022-12-13 22:20:20,775 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-12-13 22:20:20,775 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e57d76b1-c50c-4fef-87a0-105f3f2e4bee/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 22:20:20,776 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e57d76b1-c50c-4fef-87a0-105f3f2e4bee/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-12-13 22:20:20,777 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e57d76b1-c50c-4fef-87a0-105f3f2e4bee/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Waiting until timeout for monitored process [2022-12-13 22:20:20,778 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2022-12-13 22:20:20,788 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-12-13 22:20:20,788 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-12-13 22:20:20,788 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-12-13 22:20:20,789 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-12-13 22:20:20,789 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-12-13 22:20:20,789 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-12-13 22:20:20,789 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-12-13 22:20:20,791 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-12-13 22:20:20,794 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e57d76b1-c50c-4fef-87a0-105f3f2e4bee/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Ended with exit code 0 [2022-12-13 22:20:20,794 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-12-13 22:20:20,794 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e57d76b1-c50c-4fef-87a0-105f3f2e4bee/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 22:20:20,795 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e57d76b1-c50c-4fef-87a0-105f3f2e4bee/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-12-13 22:20:20,796 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e57d76b1-c50c-4fef-87a0-105f3f2e4bee/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Waiting until timeout for monitored process [2022-12-13 22:20:20,797 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2022-12-13 22:20:20,807 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-12-13 22:20:20,807 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-12-13 22:20:20,808 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-12-13 22:20:20,808 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-12-13 22:20:20,808 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-12-13 22:20:20,809 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-12-13 22:20:20,809 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-12-13 22:20:20,812 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2022-12-13 22:20:20,817 INFO L443 ModelExtractionUtils]: Simplification made 4 calls to the SMT solver. [2022-12-13 22:20:20,817 INFO L444 ModelExtractionUtils]: 0 out of 4 variables were initially zero. Simplification set additionally 1 variables to zero. [2022-12-13 22:20:20,818 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-12-13 22:20:20,818 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e57d76b1-c50c-4fef-87a0-105f3f2e4bee/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 22:20:20,852 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e57d76b1-c50c-4fef-87a0-105f3f2e4bee/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-12-13 22:20:20,854 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e57d76b1-c50c-4fef-87a0-105f3f2e4bee/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Waiting until timeout for monitored process [2022-12-13 22:20:20,854 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2022-12-13 22:20:20,854 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2022-12-13 22:20:20,855 INFO L513 LassoAnalysis]: Proved termination. [2022-12-13 22:20:20,855 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~i~0#1, ULTIMATE.start_main_~n~0#1) = -1*ULTIMATE.start_main_~i~0#1 + 1*ULTIMATE.start_main_~n~0#1 Supporting invariants [] [2022-12-13 22:20:20,858 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e57d76b1-c50c-4fef-87a0-105f3f2e4bee/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Ended with exit code 0 [2022-12-13 22:20:20,861 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2022-12-13 22:20:20,880 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 22:20:20,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:20:20,893 INFO L263 TraceCheckSpWp]: Trace formula consists of 25 conjuncts, 2 conjunts are in the unsatisfiable core [2022-12-13 22:20:20,894 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 22:20:20,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:20:20,905 WARN L261 TraceCheckSpWp]: Trace formula consists of 7 conjuncts, 4 conjunts are in the unsatisfiable core [2022-12-13 22:20:20,906 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 22:20:20,906 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 22:20:20,934 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 1 loop predicates [2022-12-13 22:20:20,936 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand has 11 states, 10 states have (on average 1.5) internal successors, (15), 10 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 2 states, 2 states have (on average 1.5) internal successors, (3), 2 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 22:20:20,968 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand has 11 states, 10 states have (on average 1.5) internal successors, (15), 10 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0). Second operand has 2 states, 2 states have (on average 1.5) internal successors, (3), 2 states have internal predecessors, (3), 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 28 states and 38 transitions. Complement of second has 5 states. [2022-12-13 22:20:20,970 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2022-12-13 22:20:20,975 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2 states, 2 states have (on average 1.5) internal successors, (3), 2 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 22:20:20,975 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 25 transitions. [2022-12-13 22:20:20,976 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 25 transitions. Stem has 2 letters. Loop has 1 letters. [2022-12-13 22:20:20,977 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-12-13 22:20:20,977 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 25 transitions. Stem has 3 letters. Loop has 1 letters. [2022-12-13 22:20:20,977 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-12-13 22:20:20,977 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 25 transitions. Stem has 2 letters. Loop has 2 letters. [2022-12-13 22:20:20,977 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-12-13 22:20:20,978 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 28 states and 38 transitions. [2022-12-13 22:20:20,981 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2022-12-13 22:20:20,984 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 28 states to 8 states and 10 transitions. [2022-12-13 22:20:20,985 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 6 [2022-12-13 22:20:20,985 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 7 [2022-12-13 22:20:20,985 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 10 transitions. [2022-12-13 22:20:20,986 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 22:20:20,986 INFO L218 hiAutomatonCegarLoop]: Abstraction has 8 states and 10 transitions. [2022-12-13 22:20:21,002 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8 states and 10 transitions. [2022-12-13 22:20:21,009 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8 to 8. [2022-12-13 22:20:21,009 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8 states, 8 states have (on average 1.25) internal successors, (10), 7 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 22:20:21,009 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 10 transitions. [2022-12-13 22:20:21,010 INFO L240 hiAutomatonCegarLoop]: Abstraction has 8 states and 10 transitions. [2022-12-13 22:20:21,011 INFO L428 stractBuchiCegarLoop]: Abstraction has 8 states and 10 transitions. [2022-12-13 22:20:21,011 INFO L335 stractBuchiCegarLoop]: ======== Iteration 2 ============ [2022-12-13 22:20:21,011 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 8 states and 10 transitions. [2022-12-13 22:20:21,011 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2022-12-13 22:20:21,011 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-12-13 22:20:21,011 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-12-13 22:20:21,012 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1] [2022-12-13 22:20:21,012 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1] [2022-12-13 22:20:21,012 INFO L748 eck$LassoCheckResult]: Stem: 74#$Ultimate##0 assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int(48, 1, 0, 1);call write~init~int(0, 1, 1, 1);call #Ultimate.allocInit(9, 2); 75#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet1#1, main_#t~post2#1, main_#t~post3#1, main_#t~post4#1, main_#t~post5#1, main_~n~0#1, main_~i~0#1, main_~k~0#1, main_~j~0#1;havoc main_~n~0#1;main_~i~0#1 := 0;main_~k~0#1 := 0;main_~n~0#1 := main_#t~nondet1#1;havoc main_#t~nondet1#1; 76#L29-2 assume !(main_~i~0#1 < main_~n~0#1); 72#L29-3 main_~j~0#1 := 0; 73#L34-2 [2022-12-13 22:20:21,012 INFO L750 eck$LassoCheckResult]: Loop: 73#L34-2 assume !!(main_~j~0#1 < main_~n~0#1);assume { :begin_inline___VERIFIER_assert } true;__VERIFIER_assert_#in~cond#1 := (if main_~k~0#1 > 0 then 1 else 0);havoc __VERIFIER_assert_~cond#1;__VERIFIER_assert_~cond#1 := __VERIFIER_assert_#in~cond#1; 70#L18 assume !(0 == __VERIFIER_assert_~cond#1); 71#L18-2 assume { :end_inline___VERIFIER_assert } true;main_#t~post4#1 := main_~j~0#1;main_~j~0#1 := 1 + main_#t~post4#1;havoc main_#t~post4#1;main_#t~post5#1 := main_~k~0#1;main_~k~0#1 := main_#t~post5#1 - 1;havoc main_#t~post5#1; 73#L34-2 [2022-12-13 22:20:21,013 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 22:20:21,013 INFO L85 PathProgramCache]: Analyzing trace with hash 925737, now seen corresponding path program 1 times [2022-12-13 22:20:21,013 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 22:20:21,013 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1457290602] [2022-12-13 22:20:21,014 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 22:20:21,014 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 22:20:21,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 22:20:21,021 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-12-13 22:20:21,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 22:20:21,028 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-12-13 22:20:21,029 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 22:20:21,029 INFO L85 PathProgramCache]: Analyzing trace with hash 53850, now seen corresponding path program 1 times [2022-12-13 22:20:21,029 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 22:20:21,030 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1414290981] [2022-12-13 22:20:21,030 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 22:20:21,030 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 22:20:21,041 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e57d76b1-c50c-4fef-87a0-105f3f2e4bee/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Ended with exit code 0 [2022-12-13 22:20:21,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 22:20:21,050 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-12-13 22:20:21,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 22:20:21,056 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-12-13 22:20:21,057 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 22:20:21,057 INFO L85 PathProgramCache]: Analyzing trace with hash 1808851250, now seen corresponding path program 1 times [2022-12-13 22:20:21,057 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 22:20:21,057 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1607512569] [2022-12-13 22:20:21,057 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 22:20:21,057 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 22:20:21,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:20:21,160 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 22:20:21,161 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 22:20:21,161 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1607512569] [2022-12-13 22:20:21,162 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1607512569] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 22:20:21,162 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 22:20:21,162 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-12-13 22:20:21,162 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1100997348] [2022-12-13 22:20:21,163 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 22:20:21,228 INFO L210 LassoAnalysis]: Preferences: [2022-12-13 22:20:21,228 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-12-13 22:20:21,228 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-12-13 22:20:21,228 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-12-13 22:20:21,228 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2022-12-13 22:20:21,228 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-12-13 22:20:21,229 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-12-13 22:20:21,229 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-12-13 22:20:21,229 INFO L133 ssoRankerPreferences]: Filename of dumped script: up.i_Iteration2_Loop [2022-12-13 22:20:21,229 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-12-13 22:20:21,229 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-12-13 22:20:21,230 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-12-13 22:20:21,237 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-12-13 22:20:21,242 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-12-13 22:20:21,244 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-12-13 22:20:21,249 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-12-13 22:20:21,290 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-12-13 22:20:21,290 INFO L404 LassoAnalysis]: Checking for nontermination... [2022-12-13 22:20:21,290 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-12-13 22:20:21,290 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e57d76b1-c50c-4fef-87a0-105f3f2e4bee/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 22:20:21,291 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e57d76b1-c50c-4fef-87a0-105f3f2e4bee/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-12-13 22:20:21,292 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e57d76b1-c50c-4fef-87a0-105f3f2e4bee/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Waiting until timeout for monitored process [2022-12-13 22:20:21,293 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-12-13 22:20:21,293 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-12-13 22:20:21,307 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e57d76b1-c50c-4fef-87a0-105f3f2e4bee/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Ended with exit code 0 [2022-12-13 22:20:21,307 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-12-13 22:20:21,308 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e57d76b1-c50c-4fef-87a0-105f3f2e4bee/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 22:20:21,308 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e57d76b1-c50c-4fef-87a0-105f3f2e4bee/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-12-13 22:20:21,309 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e57d76b1-c50c-4fef-87a0-105f3f2e4bee/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Waiting until timeout for monitored process [2022-12-13 22:20:21,311 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2022-12-13 22:20:21,311 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-12-13 22:20:21,448 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2022-12-13 22:20:21,451 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e57d76b1-c50c-4fef-87a0-105f3f2e4bee/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Forceful destruction successful, exit code 0 [2022-12-13 22:20:21,452 INFO L210 LassoAnalysis]: Preferences: [2022-12-13 22:20:21,452 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-12-13 22:20:21,452 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-12-13 22:20:21,452 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-12-13 22:20:21,452 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2022-12-13 22:20:21,452 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-12-13 22:20:21,452 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-12-13 22:20:21,452 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-12-13 22:20:21,452 INFO L133 ssoRankerPreferences]: Filename of dumped script: up.i_Iteration2_Loop [2022-12-13 22:20:21,453 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-12-13 22:20:21,453 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-12-13 22:20:21,454 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-12-13 22:20:21,459 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-12-13 22:20:21,462 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-12-13 22:20:21,463 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-12-13 22:20:21,467 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-12-13 22:20:21,506 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-12-13 22:20:21,506 INFO L490 LassoAnalysis]: Using template 'affine'. [2022-12-13 22:20:21,506 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-12-13 22:20:21,506 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e57d76b1-c50c-4fef-87a0-105f3f2e4bee/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 22:20:21,507 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e57d76b1-c50c-4fef-87a0-105f3f2e4bee/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-12-13 22:20:21,508 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e57d76b1-c50c-4fef-87a0-105f3f2e4bee/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Waiting until timeout for monitored process [2022-12-13 22:20:21,510 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2022-12-13 22:20:21,522 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-12-13 22:20:21,522 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-12-13 22:20:21,522 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-12-13 22:20:21,523 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-12-13 22:20:21,523 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-12-13 22:20:21,524 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-12-13 22:20:21,524 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-12-13 22:20:21,527 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2022-12-13 22:20:21,532 INFO L443 ModelExtractionUtils]: Simplification made 4 calls to the SMT solver. [2022-12-13 22:20:21,532 INFO L444 ModelExtractionUtils]: 0 out of 4 variables were initially zero. Simplification set additionally 1 variables to zero. [2022-12-13 22:20:21,532 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-12-13 22:20:21,532 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e57d76b1-c50c-4fef-87a0-105f3f2e4bee/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 22:20:21,533 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e57d76b1-c50c-4fef-87a0-105f3f2e4bee/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-12-13 22:20:21,534 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e57d76b1-c50c-4fef-87a0-105f3f2e4bee/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Waiting until timeout for monitored process [2022-12-13 22:20:21,536 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2022-12-13 22:20:21,536 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2022-12-13 22:20:21,536 INFO L513 LassoAnalysis]: Proved termination. [2022-12-13 22:20:21,536 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~n~0#1, ULTIMATE.start_main_~j~0#1) = 1*ULTIMATE.start_main_~n~0#1 - 1*ULTIMATE.start_main_~j~0#1 Supporting invariants [] [2022-12-13 22:20:21,539 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e57d76b1-c50c-4fef-87a0-105f3f2e4bee/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Ended with exit code 0 [2022-12-13 22:20:21,540 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2022-12-13 22:20:21,551 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 22:20:21,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:20:21,560 INFO L263 TraceCheckSpWp]: Trace formula consists of 28 conjuncts, 2 conjunts are in the unsatisfiable core [2022-12-13 22:20:21,560 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 22:20:21,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:20:21,570 INFO L263 TraceCheckSpWp]: Trace formula consists of 12 conjuncts, 4 conjunts are in the unsatisfiable core [2022-12-13 22:20:21,571 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 22:20:21,588 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 22:20:21,588 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates [2022-12-13 22:20:21,588 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 8 states and 10 transitions. cyclomatic complexity: 4 Second operand has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 3 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 22:20:21,595 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 8 states and 10 transitions. cyclomatic complexity: 4. Second operand has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 3 states have internal predecessors, (7), 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 11 states and 14 transitions. Complement of second has 4 states. [2022-12-13 22:20:21,595 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 3 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2022-12-13 22:20:21,596 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 3 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 22:20:21,596 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 8 transitions. [2022-12-13 22:20:21,596 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 8 transitions. Stem has 4 letters. Loop has 3 letters. [2022-12-13 22:20:21,597 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-12-13 22:20:21,597 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 8 transitions. Stem has 7 letters. Loop has 3 letters. [2022-12-13 22:20:21,597 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-12-13 22:20:21,597 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 8 transitions. Stem has 4 letters. Loop has 6 letters. [2022-12-13 22:20:21,597 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-12-13 22:20:21,598 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 11 states and 14 transitions. [2022-12-13 22:20:21,598 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2022-12-13 22:20:21,598 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 11 states to 0 states and 0 transitions. [2022-12-13 22:20:21,598 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2022-12-13 22:20:21,598 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2022-12-13 22:20:21,598 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2022-12-13 22:20:21,599 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 22:20:21,599 INFO L218 hiAutomatonCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-12-13 22:20:21,599 INFO L240 hiAutomatonCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-12-13 22:20:21,599 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 22:20:21,600 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-13 22:20:21,601 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-12-13 22:20:21,601 INFO L87 Difference]: Start difference. First operand 0 states and 0 transitions. Second operand has 5 states, 5 states have (on average 1.4) internal successors, (7), 5 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 22:20:21,603 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 22:20:21,603 INFO L93 Difference]: Finished difference Result 0 states and 0 transitions. [2022-12-13 22:20:21,603 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 0 states and 0 transitions. [2022-12-13 22:20:21,604 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2022-12-13 22:20:21,604 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 0 states to 0 states and 0 transitions. [2022-12-13 22:20:21,604 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2022-12-13 22:20:21,604 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2022-12-13 22:20:21,604 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2022-12-13 22:20:21,604 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 22:20:21,604 INFO L218 hiAutomatonCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-12-13 22:20:21,604 INFO L240 hiAutomatonCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-12-13 22:20:21,604 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-12-13 22:20:21,605 INFO L428 stractBuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-12-13 22:20:21,605 INFO L335 stractBuchiCegarLoop]: ======== Iteration 3 ============ [2022-12-13 22:20:21,605 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2022-12-13 22:20:21,605 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2022-12-13 22:20:21,605 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2022-12-13 22:20:21,611 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 13.12 10:20:21 BoogieIcfgContainer [2022-12-13 22:20:21,611 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2022-12-13 22:20:21,611 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-12-13 22:20:21,611 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-12-13 22:20:21,612 INFO L275 PluginConnector]: Witness Printer initialized [2022-12-13 22:20:21,612 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 10:20:20" (3/4) ... [2022-12-13 22:20:21,614 INFO L140 WitnessPrinter]: No result that supports witness generation found [2022-12-13 22:20:21,614 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-12-13 22:20:21,615 INFO L158 Benchmark]: Toolchain (without parser) took 1829.97ms. Allocated memory was 159.4MB in the beginning and 192.9MB in the end (delta: 33.6MB). Free memory was 126.6MB in the beginning and 132.6MB in the end (delta: -6.1MB). Peak memory consumption was 29.6MB. Max. memory is 16.1GB. [2022-12-13 22:20:21,615 INFO L158 Benchmark]: CDTParser took 0.17ms. Allocated memory is still 159.4MB. Free memory is still 129.8MB. There was no memory consumed. Max. memory is 16.1GB. [2022-12-13 22:20:21,615 INFO L158 Benchmark]: CACSL2BoogieTranslator took 164.15ms. Allocated memory is still 159.4MB. Free memory was 126.0MB in the beginning and 116.1MB in the end (delta: 9.9MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2022-12-13 22:20:21,616 INFO L158 Benchmark]: Boogie Procedure Inliner took 22.06ms. Allocated memory is still 159.4MB. Free memory was 116.1MB in the beginning and 114.4MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-12-13 22:20:21,616 INFO L158 Benchmark]: Boogie Preprocessor took 13.81ms. Allocated memory is still 159.4MB. Free memory was 114.4MB in the beginning and 113.4MB in the end (delta: 924.7kB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-12-13 22:20:21,616 INFO L158 Benchmark]: RCFGBuilder took 177.09ms. Allocated memory is still 159.4MB. Free memory was 113.4MB in the beginning and 104.5MB in the end (delta: 8.9MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2022-12-13 22:20:21,616 INFO L158 Benchmark]: BuchiAutomizer took 1446.40ms. Allocated memory was 159.4MB in the beginning and 192.9MB in the end (delta: 33.6MB). Free memory was 103.9MB in the beginning and 133.7MB in the end (delta: -29.8MB). Peak memory consumption was 6.5MB. Max. memory is 16.1GB. [2022-12-13 22:20:21,617 INFO L158 Benchmark]: Witness Printer took 2.74ms. Allocated memory is still 192.9MB. Free memory was 133.7MB in the beginning and 132.6MB in the end (delta: 1.0MB). There was no memory consumed. Max. memory is 16.1GB. [2022-12-13 22:20:21,619 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.17ms. Allocated memory is still 159.4MB. Free memory is still 129.8MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 164.15ms. Allocated memory is still 159.4MB. Free memory was 126.0MB in the beginning and 116.1MB in the end (delta: 9.9MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 22.06ms. Allocated memory is still 159.4MB. Free memory was 116.1MB in the beginning and 114.4MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 13.81ms. Allocated memory is still 159.4MB. Free memory was 114.4MB in the beginning and 113.4MB in the end (delta: 924.7kB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 177.09ms. Allocated memory is still 159.4MB. Free memory was 113.4MB in the beginning and 104.5MB in the end (delta: 8.9MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * BuchiAutomizer took 1446.40ms. Allocated memory was 159.4MB in the beginning and 192.9MB in the end (delta: 33.6MB). Free memory was 103.9MB in the beginning and 133.7MB in the end (delta: -29.8MB). Peak memory consumption was 6.5MB. Max. memory is 16.1GB. * Witness Printer took 2.74ms. Allocated memory is still 192.9MB. Free memory was 133.7MB in the beginning and 132.6MB in the end (delta: 1.0MB). There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 3 terminating modules (1 trivial, 2 deterministic, 0 nondeterministic). One deterministic module has affine ranking function -1 * i + n and consists of 4 locations. One deterministic module has affine ranking function -1 * j + n and consists of 3 locations. 1 modules have a trivial ranking function, the largest among these consists of 5 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 1.4s and 3 iterations. TraceHistogramMax:1. Analysis of lassos took 1.1s. Construction of modules took 0.0s. Büchi inclusion checks took 0.1s. Highest rank in rank-based complementation 3. Minimization of det autom 3. Minimization of nondet autom 0. Automata minimization 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had -1 states and ocurred in iteration -1. Nontrivial modules had stage [2, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 19 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 17 mSDsluCounter, 21 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 7 mSDsCounter, 3 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 10 IncrementalHoareTripleChecker+Invalid, 13 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 3 mSolverCounterUnsat, 14 mSDtfsCounter, 10 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown LassoAnalysisResults: nont0 unkn0 SFLI0 SFLT1 conc0 concLT1 SILN0 SILU0 SILI0 SILT0 lasso0 LassoPreprocessingBenchmarks: Lassos: inital19 mio100 ax100 hnf100 lsp54 ukn100 mio100 lsp100 div100 bol100 ite100 ukn100 eq160 hnf93 smp100 dnf100 smp100 tf113 neg100 sie111 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 20ms VariablesStem: 0 VariablesLoop: 2 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 0 MotzkinApplications: 2 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 0 LassoNonterminationAnalysisSatUnbounded: 1 LassoNonterminationAnalysisUnsat: 2 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.3s InitialAbstractionConstructionTime: 0.0s - TerminationAnalysisResult: Termination proven Buchi Automizer proved that your program is terminating RESULT: Ultimate proved your program to be correct! [2022-12-13 22:20:21,627 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e57d76b1-c50c-4fef-87a0-105f3f2e4bee/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Ended with exit code 0 [2022-12-13 22:20:21,839 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e57d76b1-c50c-4fef-87a0-105f3f2e4bee/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE