./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/recursive-simple/fibo_2calls_2-2.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version e04fb08f 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_b4262294-aa22-48f0-ae7a-0931ea376531/bin/uautomizer-tPACEb0tL8/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4262294-aa22-48f0-ae7a-0931ea376531/bin/uautomizer-tPACEb0tL8/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4262294-aa22-48f0-ae7a-0931ea376531/bin/uautomizer-tPACEb0tL8/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4262294-aa22-48f0-ae7a-0931ea376531/bin/uautomizer-tPACEb0tL8/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/recursive-simple/fibo_2calls_2-2.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4262294-aa22-48f0-ae7a-0931ea376531/bin/uautomizer-tPACEb0tL8/config/svcomp-Termination-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4262294-aa22-48f0-ae7a-0931ea376531/bin/uautomizer-tPACEb0tL8 --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 6597d5a31aa324ba443314d2c363b302cd71d697c12811ade53ae3225a095206 --- 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-e04fb08 [2022-11-16 12:18:41,339 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-16 12:18:41,344 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-16 12:18:41,369 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-16 12:18:41,372 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-16 12:18:41,376 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-16 12:18:41,379 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-16 12:18:41,388 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-16 12:18:41,391 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-16 12:18:41,392 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-16 12:18:41,393 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-16 12:18:41,394 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-16 12:18:41,395 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-16 12:18:41,396 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-16 12:18:41,397 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-16 12:18:41,398 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-16 12:18:41,399 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-16 12:18:41,400 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-16 12:18:41,402 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-16 12:18:41,404 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-16 12:18:41,405 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-16 12:18:41,407 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-16 12:18:41,408 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-16 12:18:41,409 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-16 12:18:41,413 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-16 12:18:41,413 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-16 12:18:41,413 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-16 12:18:41,415 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-16 12:18:41,415 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-16 12:18:41,416 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-16 12:18:41,419 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-16 12:18:41,420 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-16 12:18:41,421 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-16 12:18:41,421 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-16 12:18:41,422 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-16 12:18:41,423 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-16 12:18:41,423 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-16 12:18:41,424 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-16 12:18:41,424 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-16 12:18:41,425 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-16 12:18:41,426 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-16 12:18:41,427 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4262294-aa22-48f0-ae7a-0931ea376531/bin/uautomizer-tPACEb0tL8/config/svcomp-Termination-32bit-Automizer_Default.epf [2022-11-16 12:18:41,449 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-16 12:18:41,449 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-16 12:18:41,450 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-16 12:18:41,450 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-16 12:18:41,452 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-16 12:18:41,452 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-16 12:18:41,452 INFO L138 SettingsManager]: * Use SBE=true [2022-11-16 12:18:41,453 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2022-11-16 12:18:41,453 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2022-11-16 12:18:41,453 INFO L138 SettingsManager]: * Use old map elimination=false [2022-11-16 12:18:41,454 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2022-11-16 12:18:41,454 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2022-11-16 12:18:41,454 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2022-11-16 12:18:41,455 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-16 12:18:41,455 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-16 12:18:41,455 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-16 12:18:41,456 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-16 12:18:41,456 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-16 12:18:41,456 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-16 12:18:41,456 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2022-11-16 12:18:41,457 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2022-11-16 12:18:41,457 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2022-11-16 12:18:41,457 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-16 12:18:41,458 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-16 12:18:41,458 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2022-11-16 12:18:41,458 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-16 12:18:41,458 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2022-11-16 12:18:41,459 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-16 12:18:41,459 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-16 12:18:41,459 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-16 12:18:41,460 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-16 12:18:41,461 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2022-11-16 12:18:41,461 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_b4262294-aa22-48f0-ae7a-0931ea376531/bin/uautomizer-tPACEb0tL8/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4262294-aa22-48f0-ae7a-0931ea376531/bin/uautomizer-tPACEb0tL8 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 6597d5a31aa324ba443314d2c363b302cd71d697c12811ade53ae3225a095206 [2022-11-16 12:18:41,740 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-16 12:18:41,774 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-16 12:18:41,777 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-16 12:18:41,778 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-16 12:18:41,779 INFO L275 PluginConnector]: CDTParser initialized [2022-11-16 12:18:41,781 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4262294-aa22-48f0-ae7a-0931ea376531/bin/uautomizer-tPACEb0tL8/../../sv-benchmarks/c/recursive-simple/fibo_2calls_2-2.c [2022-11-16 12:18:41,871 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4262294-aa22-48f0-ae7a-0931ea376531/bin/uautomizer-tPACEb0tL8/data/979acc5a1/fc4e8801f62f4f56b5ab218e4a382a3d/FLAG8f4476387 [2022-11-16 12:18:42,377 INFO L306 CDTParser]: Found 1 translation units. [2022-11-16 12:18:42,378 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4262294-aa22-48f0-ae7a-0931ea376531/sv-benchmarks/c/recursive-simple/fibo_2calls_2-2.c [2022-11-16 12:18:42,385 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4262294-aa22-48f0-ae7a-0931ea376531/bin/uautomizer-tPACEb0tL8/data/979acc5a1/fc4e8801f62f4f56b5ab218e4a382a3d/FLAG8f4476387 [2022-11-16 12:18:42,863 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4262294-aa22-48f0-ae7a-0931ea376531/bin/uautomizer-tPACEb0tL8/data/979acc5a1/fc4e8801f62f4f56b5ab218e4a382a3d [2022-11-16 12:18:42,866 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-16 12:18:42,870 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-16 12:18:42,875 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-16 12:18:42,876 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-16 12:18:42,886 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-16 12:18:42,887 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 12:18:42" (1/1) ... [2022-11-16 12:18:42,888 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@44bdfe1d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:18:42, skipping insertion in model container [2022-11-16 12:18:42,889 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 12:18:42" (1/1) ... [2022-11-16 12:18:42,897 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-16 12:18:42,914 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-16 12:18:43,191 WARN L229 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_b4262294-aa22-48f0-ae7a-0931ea376531/sv-benchmarks/c/recursive-simple/fibo_2calls_2-2.c[946,959] [2022-11-16 12:18:43,192 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-16 12:18:43,203 INFO L203 MainTranslator]: Completed pre-run [2022-11-16 12:18:43,225 WARN L229 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_b4262294-aa22-48f0-ae7a-0931ea376531/sv-benchmarks/c/recursive-simple/fibo_2calls_2-2.c[946,959] [2022-11-16 12:18:43,228 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-16 12:18:43,244 INFO L208 MainTranslator]: Completed translation [2022-11-16 12:18:43,246 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:18:43 WrapperNode [2022-11-16 12:18:43,247 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-16 12:18:43,248 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-16 12:18:43,248 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-16 12:18:43,249 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-16 12:18:43,257 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:18:43" (1/1) ... [2022-11-16 12:18:43,265 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:18:43" (1/1) ... [2022-11-16 12:18:43,284 INFO L138 Inliner]: procedures = 14, calls = 12, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 20 [2022-11-16 12:18:43,284 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-16 12:18:43,285 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-16 12:18:43,285 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-16 12:18:43,285 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-16 12:18:43,294 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:18:43" (1/1) ... [2022-11-16 12:18:43,295 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:18:43" (1/1) ... [2022-11-16 12:18:43,297 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:18:43" (1/1) ... [2022-11-16 12:18:43,297 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:18:43" (1/1) ... [2022-11-16 12:18:43,302 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:18:43" (1/1) ... [2022-11-16 12:18:43,307 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:18:43" (1/1) ... [2022-11-16 12:18:43,313 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:18:43" (1/1) ... [2022-11-16 12:18:43,313 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:18:43" (1/1) ... [2022-11-16 12:18:43,319 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-16 12:18:43,321 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-16 12:18:43,321 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-16 12:18:43,322 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-16 12:18:43,324 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:18:43" (1/1) ... [2022-11-16 12:18:43,331 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-16 12:18:43,344 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4262294-aa22-48f0-ae7a-0931ea376531/bin/uautomizer-tPACEb0tL8/z3 [2022-11-16 12:18:43,358 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4262294-aa22-48f0-ae7a-0931ea376531/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-16 12:18:43,363 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4262294-aa22-48f0-ae7a-0931ea376531/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2022-11-16 12:18:43,413 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-16 12:18:43,413 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-16 12:18:43,413 INFO L130 BoogieDeclarations]: Found specification of procedure fibo2 [2022-11-16 12:18:43,414 INFO L138 BoogieDeclarations]: Found implementation of procedure fibo2 [2022-11-16 12:18:43,414 INFO L130 BoogieDeclarations]: Found specification of procedure fibo1 [2022-11-16 12:18:43,414 INFO L138 BoogieDeclarations]: Found implementation of procedure fibo1 [2022-11-16 12:18:43,414 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-16 12:18:43,414 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-16 12:18:43,498 INFO L235 CfgBuilder]: Building ICFG [2022-11-16 12:18:43,501 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-16 12:18:43,621 INFO L276 CfgBuilder]: Performing block encoding [2022-11-16 12:18:43,628 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-16 12:18:43,628 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-11-16 12:18:43,630 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.11 12:18:43 BoogieIcfgContainer [2022-11-16 12:18:43,630 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-16 12:18:43,631 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2022-11-16 12:18:43,632 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2022-11-16 12:18:43,636 INFO L275 PluginConnector]: BuchiAutomizer initialized [2022-11-16 12:18:43,637 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-11-16 12:18:43,637 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 16.11 12:18:42" (1/3) ... [2022-11-16 12:18:43,638 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@75e453d1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 16.11 12:18:43, skipping insertion in model container [2022-11-16 12:18:43,639 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-11-16 12:18:43,639 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:18:43" (2/3) ... [2022-11-16 12:18:43,639 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@75e453d1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 16.11 12:18:43, skipping insertion in model container [2022-11-16 12:18:43,639 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-11-16 12:18:43,640 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.11 12:18:43" (3/3) ... [2022-11-16 12:18:43,641 INFO L332 chiAutomizerObserver]: Analyzing ICFG fibo_2calls_2-2.c [2022-11-16 12:18:43,723 INFO L303 stractBuchiCegarLoop]: Interprodecural is true [2022-11-16 12:18:43,723 INFO L304 stractBuchiCegarLoop]: Hoare is false [2022-11-16 12:18:43,723 INFO L305 stractBuchiCegarLoop]: Compute interpolants for ForwardPredicates [2022-11-16 12:18:43,724 INFO L306 stractBuchiCegarLoop]: Backedges is STRAIGHT_LINE [2022-11-16 12:18:43,724 INFO L307 stractBuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2022-11-16 12:18:43,724 INFO L308 stractBuchiCegarLoop]: Difference is false [2022-11-16 12:18:43,724 INFO L309 stractBuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2022-11-16 12:18:43,725 INFO L313 stractBuchiCegarLoop]: ======== Iteration 0 == of CEGAR loop == BuchiAutomatonCegarLoop ======== [2022-11-16 12:18:43,730 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 26 states, 18 states have (on average 1.2777777777777777) internal successors, (23), 18 states have internal predecessors, (23), 5 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2022-11-16 12:18:43,772 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 10 [2022-11-16 12:18:43,773 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-11-16 12:18:43,773 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-11-16 12:18:43,780 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1] [2022-11-16 12:18:43,780 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 12:18:43,780 INFO L335 stractBuchiCegarLoop]: ======== Iteration 1 ============ [2022-11-16 12:18:43,781 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 26 states, 18 states have (on average 1.2777777777777777) internal successors, (23), 18 states have internal predecessors, (23), 5 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2022-11-16 12:18:43,792 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 10 [2022-11-16 12:18:43,793 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-11-16 12:18:43,793 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-11-16 12:18:43,794 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1] [2022-11-16 12:18:43,794 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 12:18:43,818 INFO L748 eck$LassoCheckResult]: Stem: 15#ULTIMATE.startENTRYtrue 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(18, 2);call #Ultimate.allocInit(12, 3); 6#L-1true assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret8#1, main_~x~0#1, main_~result~0#1;main_~x~0#1 := 2; 14#L39true call main_#t~ret8#1 := fibo1(main_~x~0#1);< 4#fibo1ENTRYtrue [2022-11-16 12:18:43,818 INFO L750 eck$LassoCheckResult]: Loop: 4#fibo1ENTRYtrue ~n := #in~n; 8#L10true assume !(~n < 1); 7#L12true assume !(1 == ~n); 9#L15true call #t~ret4 := fibo2(~n - 1);< 13#fibo2ENTRYtrue ~n := #in~n; 11#L20true assume !(~n < 1); 16#L22true assume !(1 == ~n); 22#L25true call #t~ret6 := fibo1(~n - 1);< 4#fibo1ENTRYtrue [2022-11-16 12:18:43,825 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:18:43,835 INFO L85 PathProgramCache]: Analyzing trace with hash 29896, now seen corresponding path program 1 times [2022-11-16 12:18:43,845 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:18:43,846 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1544213349] [2022-11-16 12:18:43,847 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:18:43,847 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:18:43,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-16 12:18:43,970 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-16 12:18:43,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-16 12:18:44,027 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-16 12:18:44,031 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:18:44,031 INFO L85 PathProgramCache]: Analyzing trace with hash 181289832, now seen corresponding path program 1 times [2022-11-16 12:18:44,032 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:18:44,033 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1885775146] [2022-11-16 12:18:44,034 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:18:44,034 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:18:44,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-16 12:18:44,064 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-16 12:18:44,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-16 12:18:44,086 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-16 12:18:44,089 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:18:44,090 INFO L85 PathProgramCache]: Analyzing trace with hash 1313669423, now seen corresponding path program 1 times [2022-11-16 12:18:44,090 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:18:44,091 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [940857100] [2022-11-16 12:18:44,091 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:18:44,092 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:18:44,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:18:44,476 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 12:18:44,476 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 12:18:44,476 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [940857100] [2022-11-16 12:18:44,477 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [940857100] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:18:44,477 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 12:18:44,478 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-11-16 12:18:44,478 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [771813353] [2022-11-16 12:18:44,479 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:18:44,682 INFO L210 LassoAnalysis]: Preferences: [2022-11-16 12:18:44,683 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-11-16 12:18:44,683 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-11-16 12:18:44,683 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-11-16 12:18:44,684 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2022-11-16 12:18:44,684 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-16 12:18:44,684 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-11-16 12:18:44,684 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-11-16 12:18:44,684 INFO L133 ssoRankerPreferences]: Filename of dumped script: fibo_2calls_2-2.c_Iteration1_Loop [2022-11-16 12:18:44,685 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-11-16 12:18:44,685 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-11-16 12:18:44,724 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-16 12:18:44,749 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-16 12:18:44,759 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-16 12:18:44,766 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-16 12:18:44,771 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-16 12:18:44,776 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-16 12:18:44,779 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-16 12:18:44,784 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-16 12:18:44,849 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-11-16 12:18:44,850 INFO L404 LassoAnalysis]: Checking for nontermination... [2022-11-16 12:18:44,852 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-16 12:18:44,852 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4262294-aa22-48f0-ae7a-0931ea376531/bin/uautomizer-tPACEb0tL8/z3 [2022-11-16 12:18:44,871 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4262294-aa22-48f0-ae7a-0931ea376531/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-16 12:18:44,889 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-11-16 12:18:44,889 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-11-16 12:18:44,902 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4262294-aa22-48f0-ae7a-0931ea376531/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Waiting until timeout for monitored process [2022-11-16 12:18:44,924 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2022-11-16 12:18:44,925 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {fibo2_#res=0} Honda state: {fibo2_#res=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2022-11-16 12:18:44,934 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4262294-aa22-48f0-ae7a-0931ea376531/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Forceful destruction successful, exit code 0 [2022-11-16 12:18:44,935 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-16 12:18:44,935 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4262294-aa22-48f0-ae7a-0931ea376531/bin/uautomizer-tPACEb0tL8/z3 [2022-11-16 12:18:44,939 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4262294-aa22-48f0-ae7a-0931ea376531/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-16 12:18:44,949 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-11-16 12:18:44,949 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-11-16 12:18:44,959 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4262294-aa22-48f0-ae7a-0931ea376531/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Waiting until timeout for monitored process [2022-11-16 12:18:44,977 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2022-11-16 12:18:44,978 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {fibo1_#res=0} Honda state: {fibo1_#res=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2022-11-16 12:18:44,987 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4262294-aa22-48f0-ae7a-0931ea376531/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Forceful destruction successful, exit code 0 [2022-11-16 12:18:44,988 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-16 12:18:44,988 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4262294-aa22-48f0-ae7a-0931ea376531/bin/uautomizer-tPACEb0tL8/z3 [2022-11-16 12:18:44,990 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4262294-aa22-48f0-ae7a-0931ea376531/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-16 12:18:44,998 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-11-16 12:18:44,999 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-11-16 12:18:45,007 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4262294-aa22-48f0-ae7a-0931ea376531/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Waiting until timeout for monitored process [2022-11-16 12:18:45,020 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2022-11-16 12:18:45,020 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {fibo2_#in~n=0} Honda state: {fibo2_#in~n=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2022-11-16 12:18:45,023 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4262294-aa22-48f0-ae7a-0931ea376531/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Forceful destruction successful, exit code 0 [2022-11-16 12:18:45,024 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-16 12:18:45,024 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4262294-aa22-48f0-ae7a-0931ea376531/bin/uautomizer-tPACEb0tL8/z3 [2022-11-16 12:18:45,025 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4262294-aa22-48f0-ae7a-0931ea376531/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-16 12:18:45,028 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4262294-aa22-48f0-ae7a-0931ea376531/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Waiting until timeout for monitored process [2022-11-16 12:18:45,029 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-11-16 12:18:45,029 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-11-16 12:18:45,042 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2022-11-16 12:18:45,043 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {fibo1_#t~ret4=0} Honda state: {fibo1_#t~ret4=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2022-11-16 12:18:45,055 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4262294-aa22-48f0-ae7a-0931ea376531/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Ended with exit code 0 [2022-11-16 12:18:45,057 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-16 12:18:45,057 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4262294-aa22-48f0-ae7a-0931ea376531/bin/uautomizer-tPACEb0tL8/z3 [2022-11-16 12:18:45,058 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4262294-aa22-48f0-ae7a-0931ea376531/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-16 12:18:45,063 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4262294-aa22-48f0-ae7a-0931ea376531/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Waiting until timeout for monitored process [2022-11-16 12:18:45,063 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-11-16 12:18:45,064 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-11-16 12:18:45,091 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2022-11-16 12:18:45,092 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {fibo2_#t~ret6=0} Honda state: {fibo2_#t~ret6=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2022-11-16 12:18:45,101 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4262294-aa22-48f0-ae7a-0931ea376531/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Forceful destruction successful, exit code 0 [2022-11-16 12:18:45,101 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-16 12:18:45,102 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4262294-aa22-48f0-ae7a-0931ea376531/bin/uautomizer-tPACEb0tL8/z3 [2022-11-16 12:18:45,103 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4262294-aa22-48f0-ae7a-0931ea376531/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-16 12:18:45,111 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4262294-aa22-48f0-ae7a-0931ea376531/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Waiting until timeout for monitored process [2022-11-16 12:18:45,111 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-11-16 12:18:45,111 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-11-16 12:18:45,127 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2022-11-16 12:18:45,127 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {fibo1_#t~ret5=0} Honda state: {fibo1_#t~ret5=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2022-11-16 12:18:45,138 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4262294-aa22-48f0-ae7a-0931ea376531/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Forceful destruction successful, exit code 0 [2022-11-16 12:18:45,139 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-16 12:18:45,139 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4262294-aa22-48f0-ae7a-0931ea376531/bin/uautomizer-tPACEb0tL8/z3 [2022-11-16 12:18:45,141 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4262294-aa22-48f0-ae7a-0931ea376531/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-16 12:18:45,147 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4262294-aa22-48f0-ae7a-0931ea376531/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Waiting until timeout for monitored process [2022-11-16 12:18:45,148 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-11-16 12:18:45,148 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-11-16 12:18:45,170 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2022-11-16 12:18:45,170 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {fibo2_#t~ret7=0} Honda state: {fibo2_#t~ret7=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2022-11-16 12:18:45,174 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4262294-aa22-48f0-ae7a-0931ea376531/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Forceful destruction successful, exit code 0 [2022-11-16 12:18:45,174 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-16 12:18:45,175 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4262294-aa22-48f0-ae7a-0931ea376531/bin/uautomizer-tPACEb0tL8/z3 [2022-11-16 12:18:45,177 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4262294-aa22-48f0-ae7a-0931ea376531/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-16 12:18:45,189 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-11-16 12:18:45,189 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-11-16 12:18:45,203 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4262294-aa22-48f0-ae7a-0931ea376531/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Waiting until timeout for monitored process [2022-11-16 12:18:45,228 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4262294-aa22-48f0-ae7a-0931ea376531/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Forceful destruction successful, exit code 0 [2022-11-16 12:18:45,228 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-16 12:18:45,228 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4262294-aa22-48f0-ae7a-0931ea376531/bin/uautomizer-tPACEb0tL8/z3 [2022-11-16 12:18:45,230 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4262294-aa22-48f0-ae7a-0931ea376531/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-16 12:18:45,240 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4262294-aa22-48f0-ae7a-0931ea376531/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Waiting until timeout for monitored process [2022-11-16 12:18:45,241 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2022-11-16 12:18:45,241 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-11-16 12:18:45,326 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2022-11-16 12:18:45,331 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4262294-aa22-48f0-ae7a-0931ea376531/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Ended with exit code 0 [2022-11-16 12:18:45,332 INFO L210 LassoAnalysis]: Preferences: [2022-11-16 12:18:45,332 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-11-16 12:18:45,332 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-11-16 12:18:45,332 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-11-16 12:18:45,332 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2022-11-16 12:18:45,332 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-16 12:18:45,332 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-11-16 12:18:45,332 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-11-16 12:18:45,332 INFO L133 ssoRankerPreferences]: Filename of dumped script: fibo_2calls_2-2.c_Iteration1_Loop [2022-11-16 12:18:45,333 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-11-16 12:18:45,333 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-11-16 12:18:45,334 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-16 12:18:45,340 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-16 12:18:45,345 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-16 12:18:45,348 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-16 12:18:45,354 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-16 12:18:45,358 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-16 12:18:45,370 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-16 12:18:45,373 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-16 12:18:45,433 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-11-16 12:18:45,438 INFO L490 LassoAnalysis]: Using template 'affine'. [2022-11-16 12:18:45,439 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-16 12:18:45,440 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4262294-aa22-48f0-ae7a-0931ea376531/bin/uautomizer-tPACEb0tL8/z3 [2022-11-16 12:18:45,441 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4262294-aa22-48f0-ae7a-0931ea376531/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-16 12:18:45,455 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4262294-aa22-48f0-ae7a-0931ea376531/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Waiting until timeout for monitored process [2022-11-16 12:18:45,456 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2022-11-16 12:18:45,470 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-16 12:18:45,470 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-11-16 12:18:45,471 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-16 12:18:45,471 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-16 12:18:45,471 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-16 12:18:45,474 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-11-16 12:18:45,474 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-11-16 12:18:45,484 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-11-16 12:18:45,493 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4262294-aa22-48f0-ae7a-0931ea376531/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Forceful destruction successful, exit code 0 [2022-11-16 12:18:45,493 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-16 12:18:45,494 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4262294-aa22-48f0-ae7a-0931ea376531/bin/uautomizer-tPACEb0tL8/z3 [2022-11-16 12:18:45,495 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4262294-aa22-48f0-ae7a-0931ea376531/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-16 12:18:45,502 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4262294-aa22-48f0-ae7a-0931ea376531/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Waiting until timeout for monitored process [2022-11-16 12:18:45,503 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2022-11-16 12:18:45,515 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-16 12:18:45,515 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-11-16 12:18:45,515 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-16 12:18:45,515 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-16 12:18:45,515 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-16 12:18:45,516 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-11-16 12:18:45,517 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-11-16 12:18:45,527 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-11-16 12:18:45,535 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4262294-aa22-48f0-ae7a-0931ea376531/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Forceful destruction successful, exit code 0 [2022-11-16 12:18:45,536 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-16 12:18:45,536 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4262294-aa22-48f0-ae7a-0931ea376531/bin/uautomizer-tPACEb0tL8/z3 [2022-11-16 12:18:45,537 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4262294-aa22-48f0-ae7a-0931ea376531/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-16 12:18:45,541 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4262294-aa22-48f0-ae7a-0931ea376531/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Waiting until timeout for monitored process [2022-11-16 12:18:45,542 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2022-11-16 12:18:45,553 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-16 12:18:45,554 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-11-16 12:18:45,554 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-16 12:18:45,554 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-16 12:18:45,554 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-16 12:18:45,555 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-11-16 12:18:45,555 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-11-16 12:18:45,569 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-11-16 12:18:45,575 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4262294-aa22-48f0-ae7a-0931ea376531/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Ended with exit code 0 [2022-11-16 12:18:45,575 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-16 12:18:45,576 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4262294-aa22-48f0-ae7a-0931ea376531/bin/uautomizer-tPACEb0tL8/z3 [2022-11-16 12:18:45,577 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4262294-aa22-48f0-ae7a-0931ea376531/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-16 12:18:45,579 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4262294-aa22-48f0-ae7a-0931ea376531/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (14)] Waiting until timeout for monitored process [2022-11-16 12:18:45,580 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2022-11-16 12:18:45,592 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-16 12:18:45,592 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-11-16 12:18:45,592 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-16 12:18:45,592 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-16 12:18:45,592 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-16 12:18:45,593 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-11-16 12:18:45,593 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-11-16 12:18:45,601 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-11-16 12:18:45,607 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4262294-aa22-48f0-ae7a-0931ea376531/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (14)] Ended with exit code 0 [2022-11-16 12:18:45,613 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-16 12:18:45,613 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4262294-aa22-48f0-ae7a-0931ea376531/bin/uautomizer-tPACEb0tL8/z3 [2022-11-16 12:18:45,614 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4262294-aa22-48f0-ae7a-0931ea376531/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-16 12:18:45,619 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2022-11-16 12:18:45,632 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4262294-aa22-48f0-ae7a-0931ea376531/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (15)] Waiting until timeout for monitored process [2022-11-16 12:18:45,633 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-16 12:18:45,633 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-11-16 12:18:45,633 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-16 12:18:45,633 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-16 12:18:45,633 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-16 12:18:45,635 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-11-16 12:18:45,635 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-11-16 12:18:45,655 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-11-16 12:18:45,664 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4262294-aa22-48f0-ae7a-0931ea376531/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (15)] Forceful destruction successful, exit code 0 [2022-11-16 12:18:45,665 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-16 12:18:45,665 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4262294-aa22-48f0-ae7a-0931ea376531/bin/uautomizer-tPACEb0tL8/z3 [2022-11-16 12:18:45,666 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4262294-aa22-48f0-ae7a-0931ea376531/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-16 12:18:45,673 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2022-11-16 12:18:45,686 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4262294-aa22-48f0-ae7a-0931ea376531/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (16)] Waiting until timeout for monitored process [2022-11-16 12:18:45,686 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-16 12:18:45,686 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-11-16 12:18:45,687 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-16 12:18:45,687 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-16 12:18:45,687 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-16 12:18:45,688 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-11-16 12:18:45,688 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-11-16 12:18:45,698 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2022-11-16 12:18:45,703 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2022-11-16 12:18:45,703 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 1 variables to zero. [2022-11-16 12:18:45,705 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-16 12:18:45,705 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4262294-aa22-48f0-ae7a-0931ea376531/bin/uautomizer-tPACEb0tL8/z3 [2022-11-16 12:18:45,709 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4262294-aa22-48f0-ae7a-0931ea376531/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-16 12:18:45,710 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4262294-aa22-48f0-ae7a-0931ea376531/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (17)] Waiting until timeout for monitored process [2022-11-16 12:18:45,711 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2022-11-16 12:18:45,712 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2022-11-16 12:18:45,712 INFO L513 LassoAnalysis]: Proved termination. [2022-11-16 12:18:45,712 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(fibo1_#in~n) = 1*fibo1_#in~n Supporting invariants [] [2022-11-16 12:18:45,722 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4262294-aa22-48f0-ae7a-0931ea376531/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (16)] Forceful destruction successful, exit code 0 [2022-11-16 12:18:45,725 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2022-11-16 12:18:45,745 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:18:45,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:18:45,768 INFO L263 TraceCheckSpWp]: Trace formula consists of 59 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-16 12:18:45,769 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 12:18:45,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:18:45,801 INFO L263 TraceCheckSpWp]: Trace formula consists of 74 conjuncts, 11 conjunts are in the unsatisfiable core [2022-11-16 12:18:45,803 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 12:18:45,897 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 12:18:45,941 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 5 loop predicates [2022-11-16 12:18:45,943 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand has 26 states, 18 states have (on average 1.2777777777777777) internal successors, (23), 18 states have internal predecessors, (23), 5 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) Second operand has 6 states, 6 states have (on average 1.3333333333333333) internal successors, (8), 4 states have internal predecessors, (8), 3 states have call successors, (3), 2 states have call predecessors, (3), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:18:46,231 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand has 26 states, 18 states have (on average 1.2777777777777777) internal successors, (23), 18 states have internal predecessors, (23), 5 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5). Second operand has 6 states, 6 states have (on average 1.3333333333333333) internal successors, (8), 4 states have internal predecessors, (8), 3 states have call successors, (3), 2 states have call predecessors, (3), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 84 states and 116 transitions. Complement of second has 24 states. [2022-11-16 12:18:46,234 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 7 states 1 stem states 5 non-accepting loop states 1 accepting loop states [2022-11-16 12:18:46,247 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6 states, 6 states have (on average 1.3333333333333333) internal successors, (8), 4 states have internal predecessors, (8), 3 states have call successors, (3), 2 states have call predecessors, (3), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:18:46,251 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 21 transitions. [2022-11-16 12:18:46,254 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 7 states and 21 transitions. Stem has 3 letters. Loop has 8 letters. [2022-11-16 12:18:46,255 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-11-16 12:18:46,255 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 7 states and 21 transitions. Stem has 11 letters. Loop has 8 letters. [2022-11-16 12:18:46,256 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-11-16 12:18:46,256 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 7 states and 21 transitions. Stem has 3 letters. Loop has 16 letters. [2022-11-16 12:18:46,257 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-11-16 12:18:46,258 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 84 states and 116 transitions. [2022-11-16 12:18:46,274 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 10 [2022-11-16 12:18:46,293 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 84 states to 61 states and 82 transitions. [2022-11-16 12:18:46,296 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 39 [2022-11-16 12:18:46,297 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 40 [2022-11-16 12:18:46,298 INFO L73 IsDeterministic]: Start isDeterministic. Operand 61 states and 82 transitions. [2022-11-16 12:18:46,299 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2022-11-16 12:18:46,299 INFO L218 hiAutomatonCegarLoop]: Abstraction has 61 states and 82 transitions. [2022-11-16 12:18:46,321 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 61 states and 82 transitions. [2022-11-16 12:18:46,337 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 61 to 54. [2022-11-16 12:18:46,338 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 54 states, 36 states have (on average 1.3055555555555556) internal successors, (47), 38 states have internal predecessors, (47), 12 states have call successors, (12), 8 states have call predecessors, (12), 6 states have return successors, (13), 7 states have call predecessors, (13), 10 states have call successors, (13) [2022-11-16 12:18:46,339 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 54 states to 54 states and 72 transitions. [2022-11-16 12:18:46,341 INFO L240 hiAutomatonCegarLoop]: Abstraction has 54 states and 72 transitions. [2022-11-16 12:18:46,341 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 12:18:46,344 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-11-16 12:18:46,344 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2022-11-16 12:18:46,346 INFO L87 Difference]: Start difference. First operand 54 states and 72 transitions. Second operand has 8 states, 6 states have (on average 1.3333333333333333) internal successors, (8), 6 states have internal predecessors, (8), 3 states have call successors, (3), 3 states have call predecessors, (3), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:18:46,470 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 12:18:46,470 INFO L93 Difference]: Finished difference Result 18 states and 18 transitions. [2022-11-16 12:18:46,470 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 18 states and 18 transitions. [2022-11-16 12:18:46,471 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2022-11-16 12:18:46,471 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 18 states to 0 states and 0 transitions. [2022-11-16 12:18:46,472 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2022-11-16 12:18:46,472 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2022-11-16 12:18:46,472 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2022-11-16 12:18:46,472 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 12:18:46,491 INFO L218 hiAutomatonCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-11-16 12:18:46,492 INFO L240 hiAutomatonCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-11-16 12:18:46,494 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-11-16 12:18:46,495 INFO L428 stractBuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-11-16 12:18:46,495 INFO L335 stractBuchiCegarLoop]: ======== Iteration 2 ============ [2022-11-16 12:18:46,495 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2022-11-16 12:18:46,495 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2022-11-16 12:18:46,495 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2022-11-16 12:18:46,504 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 16.11 12:18:46 BoogieIcfgContainer [2022-11-16 12:18:46,504 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2022-11-16 12:18:46,505 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-16 12:18:46,505 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-16 12:18:46,505 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-16 12:18:46,506 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.11 12:18:43" (3/4) ... [2022-11-16 12:18:46,509 INFO L140 WitnessPrinter]: No result that supports witness generation found [2022-11-16 12:18:46,509 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-16 12:18:46,510 INFO L158 Benchmark]: Toolchain (without parser) took 3639.91ms. Allocated memory is still 157.3MB. Free memory was 125.4MB in the beginning and 129.6MB in the end (delta: -4.1MB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-16 12:18:46,511 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4262294-aa22-48f0-ae7a-0931ea376531/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (17)] Forceful destruction successful, exit code 0 [2022-11-16 12:18:46,517 INFO L158 Benchmark]: CDTParser took 0.28ms. Allocated memory is still 92.3MB. Free memory is still 47.0MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-16 12:18:46,518 INFO L158 Benchmark]: CACSL2BoogieTranslator took 372.40ms. Allocated memory is still 157.3MB. Free memory was 125.1MB in the beginning and 132.5MB in the end (delta: -7.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2022-11-16 12:18:46,518 INFO L158 Benchmark]: Boogie Procedure Inliner took 35.92ms. Allocated memory is still 157.3MB. Free memory was 132.5MB in the beginning and 131.2MB in the end (delta: 1.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-16 12:18:46,519 INFO L158 Benchmark]: Boogie Preprocessor took 34.61ms. Allocated memory is still 157.3MB. Free memory was 131.2MB in the beginning and 130.0MB in the end (delta: 1.2MB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-16 12:18:46,519 INFO L158 Benchmark]: RCFGBuilder took 309.83ms. Allocated memory is still 157.3MB. Free memory was 130.0MB in the beginning and 120.4MB in the end (delta: 9.6MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2022-11-16 12:18:46,520 INFO L158 Benchmark]: BuchiAutomizer took 2872.78ms. Allocated memory is still 157.3MB. Free memory was 120.4MB in the beginning and 130.4MB in the end (delta: -9.9MB). Peak memory consumption was 50.7MB. Max. memory is 16.1GB. [2022-11-16 12:18:46,521 INFO L158 Benchmark]: Witness Printer took 4.74ms. Allocated memory is still 157.3MB. Free memory was 130.4MB in the beginning and 129.6MB in the end (delta: 796.9kB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-16 12:18:46,523 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 92.3MB. Free memory is still 47.0MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 372.40ms. Allocated memory is still 157.3MB. Free memory was 125.1MB in the beginning and 132.5MB in the end (delta: -7.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 35.92ms. Allocated memory is still 157.3MB. Free memory was 132.5MB in the beginning and 131.2MB in the end (delta: 1.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 34.61ms. Allocated memory is still 157.3MB. Free memory was 131.2MB in the beginning and 130.0MB in the end (delta: 1.2MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 309.83ms. Allocated memory is still 157.3MB. Free memory was 130.0MB in the beginning and 120.4MB in the end (delta: 9.6MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * BuchiAutomizer took 2872.78ms. Allocated memory is still 157.3MB. Free memory was 120.4MB in the beginning and 130.4MB in the end (delta: -9.9MB). Peak memory consumption was 50.7MB. Max. memory is 16.1GB. * Witness Printer took 4.74ms. Allocated memory is still 157.3MB. Free memory was 130.4MB in the beginning and 129.6MB in the end (delta: 796.9kB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 2 terminating modules (1 trivial, 1 deterministic, 0 nondeterministic). One deterministic module has affine ranking function \old(n) and consists of 7 locations. 1 modules have a trivial ranking function, the largest among these consists of 8 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 2.7s and 2 iterations. TraceHistogramMax:1. Analysis of lassos took 1.9s. Construction of modules took 0.1s. Büchi inclusion checks took 0.5s. Highest rank in rank-based complementation 3. Minimization of det autom 1. Minimization of nondet autom 1. Automata minimization 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 7 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, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 42 SdHoareTripleChecker+Valid, 0.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 41 mSDsluCounter, 42 SdHoareTripleChecker+Invalid, 0.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 26 mSDsCounter, 10 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 134 IncrementalHoareTripleChecker+Invalid, 144 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 10 mSolverCounterUnsat, 16 mSDtfsCounter, 134 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown LassoAnalysisResults: nont0 unkn0 SFLI0 SFLT0 conc0 concLT1 SILN0 SILU0 SILI0 SILT0 lasso0 LassoPreprocessingBenchmarks: Lassos: inital15 mio100 ax100 hnf100 lsp100 ukn100 mio100 lsp100 div100 bol100 ite100 ukn100 eq166 hnf95 smp66 dnf100 smp100 tf112 neg94 sie111 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 44ms VariablesStem: 0 VariablesLoop: 0 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 0 MotzkinApplications: 2 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 7 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 1 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! [2022-11-16 12:18:46,546 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4262294-aa22-48f0-ae7a-0931ea376531/bin/uautomizer-tPACEb0tL8/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