./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/termination-crafted/RecursiveMultiplication-1.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 38b53e6a Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7352ef4-59fd-4f84-83d8-0f8a1092b74c/bin/uautomizer-ZsLfNo2U6R/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7352ef4-59fd-4f84-83d8-0f8a1092b74c/bin/uautomizer-ZsLfNo2U6R/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7352ef4-59fd-4f84-83d8-0f8a1092b74c/bin/uautomizer-ZsLfNo2U6R/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7352ef4-59fd-4f84-83d8-0f8a1092b74c/bin/uautomizer-ZsLfNo2U6R/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/termination-crafted/RecursiveMultiplication-1.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7352ef4-59fd-4f84-83d8-0f8a1092b74c/bin/uautomizer-ZsLfNo2U6R/config/svcomp-Termination-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7352ef4-59fd-4f84-83d8-0f8a1092b74c/bin/uautomizer-ZsLfNo2U6R --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(F end) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 759adb73d7cf84e38b053793a18c9790a1be4e7fcbaa9f1ea135fb0a39711b48 --- 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-38b53e6 [2022-11-25 18:29:25,233 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-25 18:29:25,235 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-25 18:29:25,278 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-25 18:29:25,279 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-25 18:29:25,283 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-25 18:29:25,284 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-25 18:29:25,286 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-25 18:29:25,288 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-25 18:29:25,289 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-25 18:29:25,290 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-25 18:29:25,292 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-25 18:29:25,292 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-25 18:29:25,293 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-25 18:29:25,295 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-25 18:29:25,296 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-25 18:29:25,300 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-25 18:29:25,305 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-25 18:29:25,307 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-25 18:29:25,314 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-25 18:29:25,318 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-25 18:29:25,321 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-25 18:29:25,323 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-25 18:29:25,324 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-25 18:29:25,334 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-25 18:29:25,335 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-25 18:29:25,335 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-25 18:29:25,337 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-25 18:29:25,338 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-25 18:29:25,339 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-25 18:29:25,339 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-25 18:29:25,340 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-25 18:29:25,341 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-25 18:29:25,343 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-25 18:29:25,345 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-25 18:29:25,345 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-25 18:29:25,346 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-25 18:29:25,346 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-25 18:29:25,346 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-25 18:29:25,348 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-25 18:29:25,349 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-25 18:29:25,349 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7352ef4-59fd-4f84-83d8-0f8a1092b74c/bin/uautomizer-ZsLfNo2U6R/config/svcomp-Termination-64bit-Automizer_Default.epf [2022-11-25 18:29:25,390 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-25 18:29:25,391 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-25 18:29:25,391 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-25 18:29:25,392 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-25 18:29:25,393 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-25 18:29:25,393 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-25 18:29:25,394 INFO L138 SettingsManager]: * Use SBE=true [2022-11-25 18:29:25,394 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2022-11-25 18:29:25,394 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2022-11-25 18:29:25,394 INFO L138 SettingsManager]: * Use old map elimination=false [2022-11-25 18:29:25,395 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2022-11-25 18:29:25,396 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2022-11-25 18:29:25,396 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2022-11-25 18:29:25,396 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-25 18:29:25,396 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-25 18:29:25,397 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-25 18:29:25,397 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-25 18:29:25,397 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2022-11-25 18:29:25,397 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2022-11-25 18:29:25,397 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2022-11-25 18:29:25,398 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-25 18:29:25,398 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2022-11-25 18:29:25,398 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-25 18:29:25,398 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2022-11-25 18:29:25,399 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-25 18:29:25,399 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-25 18:29:25,400 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-25 18:29:25,400 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-25 18:29:25,401 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2022-11-25 18:29:25,402 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_e7352ef4-59fd-4f84-83d8-0f8a1092b74c/bin/uautomizer-ZsLfNo2U6R/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7352ef4-59fd-4f84-83d8-0f8a1092b74c/bin/uautomizer-ZsLfNo2U6R Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 759adb73d7cf84e38b053793a18c9790a1be4e7fcbaa9f1ea135fb0a39711b48 [2022-11-25 18:29:25,720 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-25 18:29:25,742 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-25 18:29:25,744 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-25 18:29:25,746 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-25 18:29:25,746 INFO L275 PluginConnector]: CDTParser initialized [2022-11-25 18:29:25,747 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7352ef4-59fd-4f84-83d8-0f8a1092b74c/bin/uautomizer-ZsLfNo2U6R/../../sv-benchmarks/c/termination-crafted/RecursiveMultiplication-1.c [2022-11-25 18:29:28,805 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-25 18:29:29,051 INFO L351 CDTParser]: Found 1 translation units. [2022-11-25 18:29:29,051 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7352ef4-59fd-4f84-83d8-0f8a1092b74c/sv-benchmarks/c/termination-crafted/RecursiveMultiplication-1.c [2022-11-25 18:29:29,058 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7352ef4-59fd-4f84-83d8-0f8a1092b74c/bin/uautomizer-ZsLfNo2U6R/data/dac2fd1f2/ddf839b295f142278b02ebde72daf0a3/FLAGce460b9e2 [2022-11-25 18:29:29,080 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7352ef4-59fd-4f84-83d8-0f8a1092b74c/bin/uautomizer-ZsLfNo2U6R/data/dac2fd1f2/ddf839b295f142278b02ebde72daf0a3 [2022-11-25 18:29:29,082 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-25 18:29:29,085 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-25 18:29:29,089 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-25 18:29:29,089 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-25 18:29:29,093 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-25 18:29:29,094 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 06:29:29" (1/1) ... [2022-11-25 18:29:29,095 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1ef60e05 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:29:29, skipping insertion in model container [2022-11-25 18:29:29,095 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 06:29:29" (1/1) ... [2022-11-25 18:29:29,103 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-25 18:29:29,124 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-25 18:29:29,318 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-25 18:29:29,324 INFO L203 MainTranslator]: Completed pre-run [2022-11-25 18:29:29,338 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-25 18:29:29,351 INFO L208 MainTranslator]: Completed translation [2022-11-25 18:29:29,351 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:29:29 WrapperNode [2022-11-25 18:29:29,351 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-25 18:29:29,353 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-25 18:29:29,353 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-25 18:29:29,353 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-25 18:29:29,360 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:29:29" (1/1) ... [2022-11-25 18:29:29,366 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:29:29" (1/1) ... [2022-11-25 18:29:29,383 INFO L138 Inliner]: procedures = 5, calls = 5, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 17 [2022-11-25 18:29:29,384 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-25 18:29:29,387 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-25 18:29:29,387 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-25 18:29:29,387 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-25 18:29:29,397 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:29:29" (1/1) ... [2022-11-25 18:29:29,397 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:29:29" (1/1) ... [2022-11-25 18:29:29,398 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:29:29" (1/1) ... [2022-11-25 18:29:29,398 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:29:29" (1/1) ... [2022-11-25 18:29:29,401 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:29:29" (1/1) ... [2022-11-25 18:29:29,403 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:29:29" (1/1) ... [2022-11-25 18:29:29,404 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:29:29" (1/1) ... [2022-11-25 18:29:29,405 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:29:29" (1/1) ... [2022-11-25 18:29:29,410 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-25 18:29:29,411 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-25 18:29:29,411 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-25 18:29:29,412 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-25 18:29:29,412 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:29:29" (1/1) ... [2022-11-25 18:29:29,424 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-25 18:29:29,438 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7352ef4-59fd-4f84-83d8-0f8a1092b74c/bin/uautomizer-ZsLfNo2U6R/z3 [2022-11-25 18:29:29,450 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7352ef4-59fd-4f84-83d8-0f8a1092b74c/bin/uautomizer-ZsLfNo2U6R/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-25 18:29:29,469 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7352ef4-59fd-4f84-83d8-0f8a1092b74c/bin/uautomizer-ZsLfNo2U6R/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2022-11-25 18:29:29,497 INFO L130 BoogieDeclarations]: Found specification of procedure mult [2022-11-25 18:29:29,498 INFO L138 BoogieDeclarations]: Found implementation of procedure mult [2022-11-25 18:29:29,498 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-25 18:29:29,499 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-25 18:29:29,559 INFO L235 CfgBuilder]: Building ICFG [2022-11-25 18:29:29,561 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-25 18:29:29,671 INFO L276 CfgBuilder]: Performing block encoding [2022-11-25 18:29:29,678 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-25 18:29:29,678 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-11-25 18:29:29,680 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 06:29:29 BoogieIcfgContainer [2022-11-25 18:29:29,680 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-25 18:29:29,681 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2022-11-25 18:29:29,681 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2022-11-25 18:29:29,686 INFO L275 PluginConnector]: BuchiAutomizer initialized [2022-11-25 18:29:29,687 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-11-25 18:29:29,687 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 25.11 06:29:29" (1/3) ... [2022-11-25 18:29:29,688 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@65d182de and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 25.11 06:29:29, skipping insertion in model container [2022-11-25 18:29:29,688 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-11-25 18:29:29,688 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:29:29" (2/3) ... [2022-11-25 18:29:29,689 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@65d182de and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 25.11 06:29:29, skipping insertion in model container [2022-11-25 18:29:29,689 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-11-25 18:29:29,689 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 06:29:29" (3/3) ... [2022-11-25 18:29:29,709 INFO L332 chiAutomizerObserver]: Analyzing ICFG RecursiveMultiplication-1.c [2022-11-25 18:29:29,817 INFO L303 stractBuchiCegarLoop]: Interprodecural is true [2022-11-25 18:29:29,817 INFO L304 stractBuchiCegarLoop]: Hoare is false [2022-11-25 18:29:29,817 INFO L305 stractBuchiCegarLoop]: Compute interpolants for ForwardPredicates [2022-11-25 18:29:29,817 INFO L306 stractBuchiCegarLoop]: Backedges is STRAIGHT_LINE [2022-11-25 18:29:29,817 INFO L307 stractBuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2022-11-25 18:29:29,818 INFO L308 stractBuchiCegarLoop]: Difference is false [2022-11-25 18:29:29,818 INFO L309 stractBuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2022-11-25 18:29:29,818 INFO L313 stractBuchiCegarLoop]: ======== Iteration 0 == of CEGAR loop == BuchiAutomatonCegarLoop ======== [2022-11-25 18:29:29,837 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 18 states, 13 states have (on average 1.3076923076923077) internal successors, (17), 13 states have internal predecessors, (17), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2022-11-25 18:29:29,875 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 5 [2022-11-25 18:29:29,876 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-11-25 18:29:29,876 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-11-25 18:29:29,883 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1] [2022-11-25 18:29:29,883 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1] [2022-11-25 18:29:29,883 INFO L335 stractBuchiCegarLoop]: ======== Iteration 1 ============ [2022-11-25 18:29:29,883 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 18 states, 13 states have (on average 1.3076923076923077) internal successors, (17), 13 states have internal predecessors, (17), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2022-11-25 18:29:29,886 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 5 [2022-11-25 18:29:29,886 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-11-25 18:29:29,886 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-11-25 18:29:29,887 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1] [2022-11-25 18:29:29,887 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1] [2022-11-25 18:29:29,907 INFO L748 eck$LassoCheckResult]: Stem: 3#ULTIMATE.startENTRYtrue assume { :begin_inline_ULTIMATE.init } true; 13#L-1true assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet2#1, main_#t~nondet3#1, main_#t~ret4#1, main_~m~0#1, main_~n~0#1, main_~res~0#1;main_~m~0#1 := main_#t~nondet2#1;havoc main_#t~nondet2#1;main_~n~0#1 := main_#t~nondet3#1;havoc main_#t~nondet3#1; 11#L26true assume !!(-65535 <= main_~m~0#1 && main_~m~0#1 <= 65535); 5#L27true assume !!(-65535 <= main_~n~0#1 && main_~n~0#1 <= 65535); 15#L28true call main_#t~ret4#1 := mult(main_~m~0#1, main_~n~0#1);< 7#multENTRYtrue [2022-11-25 18:29:29,920 INFO L750 eck$LassoCheckResult]: Loop: 7#multENTRYtrue ~n := #in~n;~m := #in~m; 4#L13true assume ~m < 0; 17#L14true call #t~ret0 := mult(~n, -~m);< 7#multENTRYtrue [2022-11-25 18:29:29,927 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 18:29:29,927 INFO L85 PathProgramCache]: Analyzing trace with hash 42056124, now seen corresponding path program 1 times [2022-11-25 18:29:29,957 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 18:29:29,957 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1782526107] [2022-11-25 18:29:29,957 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 18:29:29,958 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 18:29:30,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-25 18:29:30,082 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-25 18:29:30,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-25 18:29:30,124 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-25 18:29:30,127 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 18:29:30,127 INFO L85 PathProgramCache]: Analyzing trace with hash 29916, now seen corresponding path program 1 times [2022-11-25 18:29:30,127 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 18:29:30,128 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1703060692] [2022-11-25 18:29:30,128 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 18:29:30,128 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 18:29:30,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-25 18:29:30,150 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-25 18:29:30,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-25 18:29:30,165 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-25 18:29:30,169 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 18:29:30,170 INFO L85 PathProgramCache]: Analyzing trace with hash -1236460223, now seen corresponding path program 1 times [2022-11-25 18:29:30,170 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 18:29:30,170 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2086634310] [2022-11-25 18:29:30,170 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 18:29:30,171 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 18:29:30,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-25 18:29:30,187 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-25 18:29:30,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-25 18:29:30,195 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-25 18:29:30,313 INFO L210 LassoAnalysis]: Preferences: [2022-11-25 18:29:30,314 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-11-25 18:29:30,314 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-11-25 18:29:30,314 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-11-25 18:29:30,314 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2022-11-25 18:29:30,314 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-25 18:29:30,315 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-11-25 18:29:30,315 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-11-25 18:29:30,315 INFO L133 ssoRankerPreferences]: Filename of dumped script: RecursiveMultiplication-1.c_Iteration1_Loop [2022-11-25 18:29:30,315 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-11-25 18:29:30,315 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-11-25 18:29:30,332 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-25 18:29:30,345 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-25 18:29:30,348 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-25 18:29:30,352 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-25 18:29:30,356 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-25 18:29:30,361 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-25 18:29:30,365 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-25 18:29:30,436 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-11-25 18:29:30,437 INFO L404 LassoAnalysis]: Checking for nontermination... [2022-11-25 18:29:30,440 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-25 18:29:30,440 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7352ef4-59fd-4f84-83d8-0f8a1092b74c/bin/uautomizer-ZsLfNo2U6R/z3 [2022-11-25 18:29:30,444 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7352ef4-59fd-4f84-83d8-0f8a1092b74c/bin/uautomizer-ZsLfNo2U6R/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-25 18:29:30,455 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-11-25 18:29:30,456 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-11-25 18:29:30,469 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7352ef4-59fd-4f84-83d8-0f8a1092b74c/bin/uautomizer-ZsLfNo2U6R/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Waiting until timeout for monitored process [2022-11-25 18:29:30,478 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2022-11-25 18:29:30,478 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {mult_#t~ret1=0} Honda state: {mult_#t~ret1=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2022-11-25 18:29:30,484 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7352ef4-59fd-4f84-83d8-0f8a1092b74c/bin/uautomizer-ZsLfNo2U6R/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Forceful destruction successful, exit code 0 [2022-11-25 18:29:30,485 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-25 18:29:30,486 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7352ef4-59fd-4f84-83d8-0f8a1092b74c/bin/uautomizer-ZsLfNo2U6R/z3 [2022-11-25 18:29:30,487 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7352ef4-59fd-4f84-83d8-0f8a1092b74c/bin/uautomizer-ZsLfNo2U6R/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-25 18:29:30,489 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7352ef4-59fd-4f84-83d8-0f8a1092b74c/bin/uautomizer-ZsLfNo2U6R/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Waiting until timeout for monitored process [2022-11-25 18:29:30,496 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-11-25 18:29:30,496 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-11-25 18:29:30,510 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2022-11-25 18:29:30,510 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {mult_#res=0} Honda state: {mult_#res=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2022-11-25 18:29:30,517 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7352ef4-59fd-4f84-83d8-0f8a1092b74c/bin/uautomizer-ZsLfNo2U6R/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Forceful destruction successful, exit code 0 [2022-11-25 18:29:30,518 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-25 18:29:30,518 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7352ef4-59fd-4f84-83d8-0f8a1092b74c/bin/uautomizer-ZsLfNo2U6R/z3 [2022-11-25 18:29:30,520 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7352ef4-59fd-4f84-83d8-0f8a1092b74c/bin/uautomizer-ZsLfNo2U6R/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-25 18:29:30,529 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7352ef4-59fd-4f84-83d8-0f8a1092b74c/bin/uautomizer-ZsLfNo2U6R/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Waiting until timeout for monitored process [2022-11-25 18:29:30,530 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-11-25 18:29:30,530 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-11-25 18:29:30,550 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2022-11-25 18:29:30,550 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {mult_~n=0} Honda state: {mult_~n=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2022-11-25 18:29:30,554 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7352ef4-59fd-4f84-83d8-0f8a1092b74c/bin/uautomizer-ZsLfNo2U6R/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Forceful destruction successful, exit code 0 [2022-11-25 18:29:30,555 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-25 18:29:30,555 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7352ef4-59fd-4f84-83d8-0f8a1092b74c/bin/uautomizer-ZsLfNo2U6R/z3 [2022-11-25 18:29:30,556 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7352ef4-59fd-4f84-83d8-0f8a1092b74c/bin/uautomizer-ZsLfNo2U6R/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-25 18:29:30,561 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-11-25 18:29:30,561 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-11-25 18:29:30,572 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7352ef4-59fd-4f84-83d8-0f8a1092b74c/bin/uautomizer-ZsLfNo2U6R/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Waiting until timeout for monitored process [2022-11-25 18:29:30,596 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2022-11-25 18:29:30,596 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {mult_#t~ret0=0} Honda state: {mult_#t~ret0=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2022-11-25 18:29:30,606 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7352ef4-59fd-4f84-83d8-0f8a1092b74c/bin/uautomizer-ZsLfNo2U6R/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Forceful destruction successful, exit code 0 [2022-11-25 18:29:30,608 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-25 18:29:30,608 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7352ef4-59fd-4f84-83d8-0f8a1092b74c/bin/uautomizer-ZsLfNo2U6R/z3 [2022-11-25 18:29:30,609 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7352ef4-59fd-4f84-83d8-0f8a1092b74c/bin/uautomizer-ZsLfNo2U6R/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-25 18:29:30,622 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-11-25 18:29:30,622 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-11-25 18:29:30,641 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7352ef4-59fd-4f84-83d8-0f8a1092b74c/bin/uautomizer-ZsLfNo2U6R/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Waiting until timeout for monitored process [2022-11-25 18:29:30,653 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2022-11-25 18:29:30,653 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {mult_#in~n=0} Honda state: {mult_#in~n=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2022-11-25 18:29:30,660 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7352ef4-59fd-4f84-83d8-0f8a1092b74c/bin/uautomizer-ZsLfNo2U6R/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Forceful destruction successful, exit code 0 [2022-11-25 18:29:30,661 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-25 18:29:30,661 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7352ef4-59fd-4f84-83d8-0f8a1092b74c/bin/uautomizer-ZsLfNo2U6R/z3 [2022-11-25 18:29:30,662 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7352ef4-59fd-4f84-83d8-0f8a1092b74c/bin/uautomizer-ZsLfNo2U6R/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-25 18:29:30,663 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7352ef4-59fd-4f84-83d8-0f8a1092b74c/bin/uautomizer-ZsLfNo2U6R/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Waiting until timeout for monitored process [2022-11-25 18:29:30,665 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-11-25 18:29:30,665 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-11-25 18:29:30,677 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2022-11-25 18:29:30,677 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {mult_~m=0} Honda state: {mult_~m=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2022-11-25 18:29:30,685 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7352ef4-59fd-4f84-83d8-0f8a1092b74c/bin/uautomizer-ZsLfNo2U6R/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Forceful destruction successful, exit code 0 [2022-11-25 18:29:30,685 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-25 18:29:30,686 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7352ef4-59fd-4f84-83d8-0f8a1092b74c/bin/uautomizer-ZsLfNo2U6R/z3 [2022-11-25 18:29:30,687 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7352ef4-59fd-4f84-83d8-0f8a1092b74c/bin/uautomizer-ZsLfNo2U6R/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-25 18:29:30,696 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7352ef4-59fd-4f84-83d8-0f8a1092b74c/bin/uautomizer-ZsLfNo2U6R/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Waiting until timeout for monitored process [2022-11-25 18:29:30,697 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-11-25 18:29:30,697 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-11-25 18:29:30,713 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7352ef4-59fd-4f84-83d8-0f8a1092b74c/bin/uautomizer-ZsLfNo2U6R/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Forceful destruction successful, exit code 0 [2022-11-25 18:29:30,714 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-25 18:29:30,714 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7352ef4-59fd-4f84-83d8-0f8a1092b74c/bin/uautomizer-ZsLfNo2U6R/z3 [2022-11-25 18:29:30,715 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7352ef4-59fd-4f84-83d8-0f8a1092b74c/bin/uautomizer-ZsLfNo2U6R/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-25 18:29:30,717 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7352ef4-59fd-4f84-83d8-0f8a1092b74c/bin/uautomizer-ZsLfNo2U6R/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Waiting until timeout for monitored process [2022-11-25 18:29:30,718 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2022-11-25 18:29:30,718 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-11-25 18:29:30,753 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2022-11-25 18:29:30,757 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7352ef4-59fd-4f84-83d8-0f8a1092b74c/bin/uautomizer-ZsLfNo2U6R/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Forceful destruction successful, exit code 0 [2022-11-25 18:29:30,757 INFO L210 LassoAnalysis]: Preferences: [2022-11-25 18:29:30,757 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-11-25 18:29:30,757 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-11-25 18:29:30,758 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-11-25 18:29:30,758 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2022-11-25 18:29:30,758 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-25 18:29:30,758 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-11-25 18:29:30,758 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-11-25 18:29:30,759 INFO L133 ssoRankerPreferences]: Filename of dumped script: RecursiveMultiplication-1.c_Iteration1_Loop [2022-11-25 18:29:30,759 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-11-25 18:29:30,759 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-11-25 18:29:30,761 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-25 18:29:30,765 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-25 18:29:30,769 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-25 18:29:30,772 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-25 18:29:30,776 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-25 18:29:30,780 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-25 18:29:30,784 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-25 18:29:30,857 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-11-25 18:29:30,884 INFO L490 LassoAnalysis]: Using template 'affine'. [2022-11-25 18:29:30,885 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-25 18:29:30,885 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7352ef4-59fd-4f84-83d8-0f8a1092b74c/bin/uautomizer-ZsLfNo2U6R/z3 [2022-11-25 18:29:30,897 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7352ef4-59fd-4f84-83d8-0f8a1092b74c/bin/uautomizer-ZsLfNo2U6R/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-25 18:29:30,923 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7352ef4-59fd-4f84-83d8-0f8a1092b74c/bin/uautomizer-ZsLfNo2U6R/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Waiting until timeout for monitored process [2022-11-25 18:29:30,924 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 [2022-11-25 18:29:30,937 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-25 18:29:30,937 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-11-25 18:29:30,938 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-25 18:29:30,938 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-25 18:29:30,938 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-25 18:29:30,940 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-11-25 18:29:30,940 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-11-25 18:29:30,969 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-11-25 18:29:30,978 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7352ef4-59fd-4f84-83d8-0f8a1092b74c/bin/uautomizer-ZsLfNo2U6R/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Forceful destruction successful, exit code 0 [2022-11-25 18:29:30,978 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-25 18:29:30,978 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7352ef4-59fd-4f84-83d8-0f8a1092b74c/bin/uautomizer-ZsLfNo2U6R/z3 [2022-11-25 18:29:30,980 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7352ef4-59fd-4f84-83d8-0f8a1092b74c/bin/uautomizer-ZsLfNo2U6R/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-25 18:29:30,997 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 [2022-11-25 18:29:30,998 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7352ef4-59fd-4f84-83d8-0f8a1092b74c/bin/uautomizer-ZsLfNo2U6R/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Waiting until timeout for monitored process [2022-11-25 18:29:31,010 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-25 18:29:31,010 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-11-25 18:29:31,010 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-25 18:29:31,011 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-25 18:29:31,011 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-25 18:29:31,012 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-11-25 18:29:31,013 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-11-25 18:29:31,022 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-11-25 18:29:31,031 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7352ef4-59fd-4f84-83d8-0f8a1092b74c/bin/uautomizer-ZsLfNo2U6R/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Forceful destruction successful, exit code 0 [2022-11-25 18:29:31,031 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-25 18:29:31,031 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7352ef4-59fd-4f84-83d8-0f8a1092b74c/bin/uautomizer-ZsLfNo2U6R/z3 [2022-11-25 18:29:31,033 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7352ef4-59fd-4f84-83d8-0f8a1092b74c/bin/uautomizer-ZsLfNo2U6R/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-25 18:29:31,036 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7352ef4-59fd-4f84-83d8-0f8a1092b74c/bin/uautomizer-ZsLfNo2U6R/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Waiting until timeout for monitored process [2022-11-25 18:29:31,037 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 [2022-11-25 18:29:31,048 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-25 18:29:31,049 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-11-25 18:29:31,049 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-25 18:29:31,049 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-25 18:29:31,049 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-25 18:29:31,051 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-11-25 18:29:31,051 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-11-25 18:29:31,064 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-11-25 18:29:31,067 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7352ef4-59fd-4f84-83d8-0f8a1092b74c/bin/uautomizer-ZsLfNo2U6R/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Forceful destruction successful, exit code 0 [2022-11-25 18:29:31,068 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-25 18:29:31,068 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7352ef4-59fd-4f84-83d8-0f8a1092b74c/bin/uautomizer-ZsLfNo2U6R/z3 [2022-11-25 18:29:31,069 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7352ef4-59fd-4f84-83d8-0f8a1092b74c/bin/uautomizer-ZsLfNo2U6R/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-25 18:29:31,072 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7352ef4-59fd-4f84-83d8-0f8a1092b74c/bin/uautomizer-ZsLfNo2U6R/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Waiting until timeout for monitored process [2022-11-25 18:29:31,073 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 [2022-11-25 18:29:31,083 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-25 18:29:31,083 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-11-25 18:29:31,083 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-25 18:29:31,084 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-25 18:29:31,084 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-25 18:29:31,085 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-11-25 18:29:31,085 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-11-25 18:29:31,089 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-11-25 18:29:31,093 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7352ef4-59fd-4f84-83d8-0f8a1092b74c/bin/uautomizer-ZsLfNo2U6R/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Forceful destruction successful, exit code 0 [2022-11-25 18:29:31,093 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-25 18:29:31,093 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7352ef4-59fd-4f84-83d8-0f8a1092b74c/bin/uautomizer-ZsLfNo2U6R/z3 [2022-11-25 18:29:31,095 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7352ef4-59fd-4f84-83d8-0f8a1092b74c/bin/uautomizer-ZsLfNo2U6R/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-25 18:29:31,096 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7352ef4-59fd-4f84-83d8-0f8a1092b74c/bin/uautomizer-ZsLfNo2U6R/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (14)] Waiting until timeout for monitored process [2022-11-25 18:29:31,097 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 [2022-11-25 18:29:31,108 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-25 18:29:31,108 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-11-25 18:29:31,108 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-25 18:29:31,108 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-25 18:29:31,108 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-25 18:29:31,112 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-11-25 18:29:31,113 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-11-25 18:29:31,131 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-11-25 18:29:31,138 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7352ef4-59fd-4f84-83d8-0f8a1092b74c/bin/uautomizer-ZsLfNo2U6R/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (14)] Forceful destruction successful, exit code 0 [2022-11-25 18:29:31,138 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-25 18:29:31,138 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7352ef4-59fd-4f84-83d8-0f8a1092b74c/bin/uautomizer-ZsLfNo2U6R/z3 [2022-11-25 18:29:31,139 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7352ef4-59fd-4f84-83d8-0f8a1092b74c/bin/uautomizer-ZsLfNo2U6R/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-25 18:29:31,141 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7352ef4-59fd-4f84-83d8-0f8a1092b74c/bin/uautomizer-ZsLfNo2U6R/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (15)] Waiting until timeout for monitored process [2022-11-25 18:29:31,145 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 [2022-11-25 18:29:31,156 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-25 18:29:31,156 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-11-25 18:29:31,156 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-25 18:29:31,157 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-25 18:29:31,157 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-25 18:29:31,158 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-11-25 18:29:31,158 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-11-25 18:29:31,171 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-11-25 18:29:31,174 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7352ef4-59fd-4f84-83d8-0f8a1092b74c/bin/uautomizer-ZsLfNo2U6R/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (15)] Forceful destruction successful, exit code 0 [2022-11-25 18:29:31,175 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-25 18:29:31,175 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7352ef4-59fd-4f84-83d8-0f8a1092b74c/bin/uautomizer-ZsLfNo2U6R/z3 [2022-11-25 18:29:31,176 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7352ef4-59fd-4f84-83d8-0f8a1092b74c/bin/uautomizer-ZsLfNo2U6R/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-25 18:29:31,177 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7352ef4-59fd-4f84-83d8-0f8a1092b74c/bin/uautomizer-ZsLfNo2U6R/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (16)] Waiting until timeout for monitored process [2022-11-25 18:29:31,182 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 [2022-11-25 18:29:31,195 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-25 18:29:31,195 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-11-25 18:29:31,195 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-25 18:29:31,195 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-25 18:29:31,195 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-25 18:29:31,197 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-11-25 18:29:31,197 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-11-25 18:29:31,212 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2022-11-25 18:29:31,241 INFO L443 ModelExtractionUtils]: Simplification made 2 calls to the SMT solver. [2022-11-25 18:29:31,241 INFO L444 ModelExtractionUtils]: 1 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. [2022-11-25 18:29:31,243 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-25 18:29:31,243 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7352ef4-59fd-4f84-83d8-0f8a1092b74c/bin/uautomizer-ZsLfNo2U6R/z3 [2022-11-25 18:29:31,276 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7352ef4-59fd-4f84-83d8-0f8a1092b74c/bin/uautomizer-ZsLfNo2U6R/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-25 18:29:31,284 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2022-11-25 18:29:31,284 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2022-11-25 18:29:31,284 INFO L513 LassoAnalysis]: Proved termination. [2022-11-25 18:29:31,285 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(mult_#in~m) = -1*mult_#in~m Supporting invariants [] [2022-11-25 18:29:31,287 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7352ef4-59fd-4f84-83d8-0f8a1092b74c/bin/uautomizer-ZsLfNo2U6R/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (17)] Waiting until timeout for monitored process [2022-11-25 18:29:31,293 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7352ef4-59fd-4f84-83d8-0f8a1092b74c/bin/uautomizer-ZsLfNo2U6R/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (16)] Forceful destruction successful, exit code 0 [2022-11-25 18:29:31,297 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2022-11-25 18:29:31,330 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 18:29:31,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 18:29:31,371 INFO L263 TraceCheckSpWp]: Trace formula consists of 42 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-25 18:29:31,373 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 18:29:31,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 18:29:31,402 INFO L263 TraceCheckSpWp]: Trace formula consists of 41 conjuncts, 7 conjunts are in the unsatisfiable core [2022-11-25 18:29:31,403 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 18:29:31,455 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 18:29:31,518 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 3 loop predicates [2022-11-25 18:29:31,520 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand has 18 states, 13 states have (on average 1.3076923076923077) internal successors, (17), 13 states have internal predecessors, (17), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) Second operand has 4 states, 3 states have (on average 2.0) internal successors, (6), 3 states have internal predecessors, (6), 2 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 18:29:31,627 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand has 18 states, 13 states have (on average 1.3076923076923077) internal successors, (17), 13 states have internal predecessors, (17), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3). Second operand has 4 states, 3 states have (on average 2.0) internal successors, (6), 3 states have internal predecessors, (6), 2 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 47 states and 60 transitions. Complement of second has 12 states. [2022-11-25 18:29:31,629 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2022-11-25 18:29:31,635 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4 states, 3 states have (on average 2.0) internal successors, (6), 3 states have internal predecessors, (6), 2 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 18:29:31,642 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 16 transitions. [2022-11-25 18:29:31,645 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 16 transitions. Stem has 5 letters. Loop has 3 letters. [2022-11-25 18:29:31,646 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-11-25 18:29:31,647 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 16 transitions. Stem has 8 letters. Loop has 3 letters. [2022-11-25 18:29:31,647 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-11-25 18:29:31,647 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 16 transitions. Stem has 5 letters. Loop has 6 letters. [2022-11-25 18:29:31,648 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-11-25 18:29:31,649 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 47 states and 60 transitions. [2022-11-25 18:29:31,660 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 5 [2022-11-25 18:29:31,665 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 47 states to 22 states and 25 transitions. [2022-11-25 18:29:31,666 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 15 [2022-11-25 18:29:31,667 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 17 [2022-11-25 18:29:31,667 INFO L73 IsDeterministic]: Start isDeterministic. Operand 22 states and 25 transitions. [2022-11-25 18:29:31,668 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2022-11-25 18:29:31,668 INFO L218 hiAutomatonCegarLoop]: Abstraction has 22 states and 25 transitions. [2022-11-25 18:29:31,686 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22 states and 25 transitions. [2022-11-25 18:29:31,695 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22 to 15. [2022-11-25 18:29:31,696 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15 states, 11 states have (on average 1.2727272727272727) internal successors, (14), 11 states have internal predecessors, (14), 4 states have call successors, (4), 3 states have call predecessors, (4), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 18:29:31,697 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 18 transitions. [2022-11-25 18:29:31,698 INFO L240 hiAutomatonCegarLoop]: Abstraction has 15 states and 18 transitions. [2022-11-25 18:29:31,698 INFO L428 stractBuchiCegarLoop]: Abstraction has 15 states and 18 transitions. [2022-11-25 18:29:31,698 INFO L335 stractBuchiCegarLoop]: ======== Iteration 2 ============ [2022-11-25 18:29:31,698 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 15 states and 18 transitions. [2022-11-25 18:29:31,699 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 5 [2022-11-25 18:29:31,699 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-11-25 18:29:31,699 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-11-25 18:29:31,700 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2022-11-25 18:29:31,700 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2022-11-25 18:29:31,700 INFO L748 eck$LassoCheckResult]: Stem: 123#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true; 124#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet2#1, main_#t~nondet3#1, main_#t~ret4#1, main_~m~0#1, main_~n~0#1, main_~res~0#1;main_~m~0#1 := main_#t~nondet2#1;havoc main_#t~nondet2#1;main_~n~0#1 := main_#t~nondet3#1;havoc main_#t~nondet3#1; 136#L26 assume !!(-65535 <= main_~m~0#1 && main_~m~0#1 <= 65535); 130#L27 assume !!(-65535 <= main_~n~0#1 && main_~n~0#1 <= 65535); 126#L28 call main_#t~ret4#1 := mult(main_~m~0#1, main_~n~0#1);< 131#multENTRY ~n := #in~n;~m := #in~m; 125#L13 assume !(~m < 0); 127#L16 [2022-11-25 18:29:31,701 INFO L750 eck$LassoCheckResult]: Loop: 127#L16 assume !(0 == ~m); 133#L19 call #t~ret1 := mult(~n, ~m - 1);< 135#multENTRY ~n := #in~n;~m := #in~m; 137#L13 assume !(~m < 0); 127#L16 [2022-11-25 18:29:31,701 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 18:29:31,701 INFO L85 PathProgramCache]: Analyzing trace with hash 1761229506, now seen corresponding path program 1 times [2022-11-25 18:29:31,702 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 18:29:31,702 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1234642846] [2022-11-25 18:29:31,702 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 18:29:31,702 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 18:29:31,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-25 18:29:31,709 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-25 18:29:31,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-25 18:29:31,716 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-25 18:29:31,716 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 18:29:31,716 INFO L85 PathProgramCache]: Analyzing trace with hash 1254111, now seen corresponding path program 1 times [2022-11-25 18:29:31,717 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 18:29:31,717 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [401792951] [2022-11-25 18:29:31,717 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 18:29:31,717 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 18:29:31,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-25 18:29:31,722 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-25 18:29:31,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-25 18:29:31,727 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-25 18:29:31,728 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 18:29:31,728 INFO L85 PathProgramCache]: Analyzing trace with hash -1744825056, now seen corresponding path program 1 times [2022-11-25 18:29:31,728 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 18:29:31,728 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [797328067] [2022-11-25 18:29:31,729 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 18:29:31,729 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 18:29:31,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-25 18:29:31,738 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-25 18:29:31,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-25 18:29:31,746 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-25 18:29:31,866 INFO L210 LassoAnalysis]: Preferences: [2022-11-25 18:29:31,866 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-11-25 18:29:31,866 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-11-25 18:29:31,866 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-11-25 18:29:31,866 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2022-11-25 18:29:31,866 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-25 18:29:31,866 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-11-25 18:29:31,867 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-11-25 18:29:31,867 INFO L133 ssoRankerPreferences]: Filename of dumped script: RecursiveMultiplication-1.c_Iteration2_Loop [2022-11-25 18:29:31,867 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-11-25 18:29:31,867 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-11-25 18:29:31,868 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-25 18:29:31,871 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-25 18:29:31,874 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-25 18:29:31,876 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-25 18:29:31,885 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-25 18:29:31,935 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-11-25 18:29:31,935 INFO L404 LassoAnalysis]: Checking for nontermination... [2022-11-25 18:29:31,936 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-25 18:29:31,936 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7352ef4-59fd-4f84-83d8-0f8a1092b74c/bin/uautomizer-ZsLfNo2U6R/z3 [2022-11-25 18:29:31,937 INFO L229 MonitoredProcess]: Starting monitored process 18 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7352ef4-59fd-4f84-83d8-0f8a1092b74c/bin/uautomizer-ZsLfNo2U6R/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-25 18:29:31,950 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-11-25 18:29:31,950 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-11-25 18:29:31,963 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7352ef4-59fd-4f84-83d8-0f8a1092b74c/bin/uautomizer-ZsLfNo2U6R/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (18)] Waiting until timeout for monitored process [2022-11-25 18:29:31,973 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2022-11-25 18:29:31,973 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {mult_#t~ret0=0} Honda state: {mult_#t~ret0=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2022-11-25 18:29:31,982 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7352ef4-59fd-4f84-83d8-0f8a1092b74c/bin/uautomizer-ZsLfNo2U6R/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (18)] Forceful destruction successful, exit code 0 [2022-11-25 18:29:31,982 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-25 18:29:31,983 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7352ef4-59fd-4f84-83d8-0f8a1092b74c/bin/uautomizer-ZsLfNo2U6R/z3 [2022-11-25 18:29:31,984 INFO L229 MonitoredProcess]: Starting monitored process 19 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7352ef4-59fd-4f84-83d8-0f8a1092b74c/bin/uautomizer-ZsLfNo2U6R/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-25 18:29:31,998 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-11-25 18:29:31,998 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-11-25 18:29:32,015 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7352ef4-59fd-4f84-83d8-0f8a1092b74c/bin/uautomizer-ZsLfNo2U6R/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (19)] Waiting until timeout for monitored process [2022-11-25 18:29:32,025 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2022-11-25 18:29:32,026 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {mult_#t~ret1=0} Honda state: {mult_#t~ret1=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2022-11-25 18:29:32,034 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7352ef4-59fd-4f84-83d8-0f8a1092b74c/bin/uautomizer-ZsLfNo2U6R/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (19)] Forceful destruction successful, exit code 0 [2022-11-25 18:29:32,034 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-25 18:29:32,035 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7352ef4-59fd-4f84-83d8-0f8a1092b74c/bin/uautomizer-ZsLfNo2U6R/z3 [2022-11-25 18:29:32,036 INFO L229 MonitoredProcess]: Starting monitored process 20 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7352ef4-59fd-4f84-83d8-0f8a1092b74c/bin/uautomizer-ZsLfNo2U6R/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-25 18:29:32,046 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-11-25 18:29:32,046 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-11-25 18:29:32,058 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7352ef4-59fd-4f84-83d8-0f8a1092b74c/bin/uautomizer-ZsLfNo2U6R/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (20)] Waiting until timeout for monitored process [2022-11-25 18:29:32,077 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2022-11-25 18:29:32,077 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {mult_#res=0} Honda state: {mult_#res=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2022-11-25 18:29:32,085 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7352ef4-59fd-4f84-83d8-0f8a1092b74c/bin/uautomizer-ZsLfNo2U6R/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (20)] Forceful destruction successful, exit code 0 [2022-11-25 18:29:32,085 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-25 18:29:32,085 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7352ef4-59fd-4f84-83d8-0f8a1092b74c/bin/uautomizer-ZsLfNo2U6R/z3 [2022-11-25 18:29:32,087 INFO L229 MonitoredProcess]: Starting monitored process 21 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7352ef4-59fd-4f84-83d8-0f8a1092b74c/bin/uautomizer-ZsLfNo2U6R/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-25 18:29:32,095 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-11-25 18:29:32,095 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-11-25 18:29:32,108 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7352ef4-59fd-4f84-83d8-0f8a1092b74c/bin/uautomizer-ZsLfNo2U6R/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (21)] Waiting until timeout for monitored process [2022-11-25 18:29:32,138 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7352ef4-59fd-4f84-83d8-0f8a1092b74c/bin/uautomizer-ZsLfNo2U6R/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (21)] Forceful destruction successful, exit code 0 [2022-11-25 18:29:32,138 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-25 18:29:32,138 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7352ef4-59fd-4f84-83d8-0f8a1092b74c/bin/uautomizer-ZsLfNo2U6R/z3 [2022-11-25 18:29:32,139 INFO L229 MonitoredProcess]: Starting monitored process 22 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7352ef4-59fd-4f84-83d8-0f8a1092b74c/bin/uautomizer-ZsLfNo2U6R/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-25 18:29:32,148 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2022-11-25 18:29:32,148 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-11-25 18:29:32,148 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7352ef4-59fd-4f84-83d8-0f8a1092b74c/bin/uautomizer-ZsLfNo2U6R/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (22)] Waiting until timeout for monitored process [2022-11-25 18:29:35,494 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2022-11-25 18:29:35,498 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7352ef4-59fd-4f84-83d8-0f8a1092b74c/bin/uautomizer-ZsLfNo2U6R/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (22)] Forceful destruction successful, exit code 0 [2022-11-25 18:29:35,498 INFO L210 LassoAnalysis]: Preferences: [2022-11-25 18:29:35,498 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-11-25 18:29:35,498 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-11-25 18:29:35,498 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-11-25 18:29:35,498 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2022-11-25 18:29:35,498 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-25 18:29:35,498 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-11-25 18:29:35,498 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-11-25 18:29:35,498 INFO L133 ssoRankerPreferences]: Filename of dumped script: RecursiveMultiplication-1.c_Iteration2_Loop [2022-11-25 18:29:35,499 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-11-25 18:29:35,499 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-11-25 18:29:35,500 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-25 18:29:35,507 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-25 18:29:35,509 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-25 18:29:35,512 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-25 18:29:35,523 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-25 18:29:35,580 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-11-25 18:29:35,580 INFO L490 LassoAnalysis]: Using template 'affine'. [2022-11-25 18:29:35,581 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-25 18:29:35,581 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7352ef4-59fd-4f84-83d8-0f8a1092b74c/bin/uautomizer-ZsLfNo2U6R/z3 [2022-11-25 18:29:35,585 INFO L229 MonitoredProcess]: Starting monitored process 23 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7352ef4-59fd-4f84-83d8-0f8a1092b74c/bin/uautomizer-ZsLfNo2U6R/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-25 18:29:35,589 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 [2022-11-25 18:29:35,601 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-25 18:29:35,601 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-11-25 18:29:35,601 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-25 18:29:35,601 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-25 18:29:35,602 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-25 18:29:35,602 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-11-25 18:29:35,602 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-11-25 18:29:35,604 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7352ef4-59fd-4f84-83d8-0f8a1092b74c/bin/uautomizer-ZsLfNo2U6R/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (23)] Waiting until timeout for monitored process [2022-11-25 18:29:35,612 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-11-25 18:29:35,620 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7352ef4-59fd-4f84-83d8-0f8a1092b74c/bin/uautomizer-ZsLfNo2U6R/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (23)] Forceful destruction successful, exit code 0 [2022-11-25 18:29:35,621 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-25 18:29:35,621 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7352ef4-59fd-4f84-83d8-0f8a1092b74c/bin/uautomizer-ZsLfNo2U6R/z3 [2022-11-25 18:29:35,622 INFO L229 MonitoredProcess]: Starting monitored process 24 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7352ef4-59fd-4f84-83d8-0f8a1092b74c/bin/uautomizer-ZsLfNo2U6R/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-25 18:29:35,626 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 [2022-11-25 18:29:35,632 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7352ef4-59fd-4f84-83d8-0f8a1092b74c/bin/uautomizer-ZsLfNo2U6R/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (24)] Waiting until timeout for monitored process [2022-11-25 18:29:35,637 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-25 18:29:35,637 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-11-25 18:29:35,637 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-25 18:29:35,637 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-25 18:29:35,637 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-25 18:29:35,638 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-11-25 18:29:35,638 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-11-25 18:29:35,648 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-11-25 18:29:35,656 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7352ef4-59fd-4f84-83d8-0f8a1092b74c/bin/uautomizer-ZsLfNo2U6R/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (24)] Forceful destruction successful, exit code 0 [2022-11-25 18:29:35,656 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-25 18:29:35,656 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7352ef4-59fd-4f84-83d8-0f8a1092b74c/bin/uautomizer-ZsLfNo2U6R/z3 [2022-11-25 18:29:35,657 INFO L229 MonitoredProcess]: Starting monitored process 25 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7352ef4-59fd-4f84-83d8-0f8a1092b74c/bin/uautomizer-ZsLfNo2U6R/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-25 18:29:35,664 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 [2022-11-25 18:29:35,675 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7352ef4-59fd-4f84-83d8-0f8a1092b74c/bin/uautomizer-ZsLfNo2U6R/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (25)] Waiting until timeout for monitored process [2022-11-25 18:29:35,676 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-25 18:29:35,676 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-11-25 18:29:35,676 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-25 18:29:35,676 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-25 18:29:35,676 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-25 18:29:35,677 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-11-25 18:29:35,677 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-11-25 18:29:35,684 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-11-25 18:29:35,687 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7352ef4-59fd-4f84-83d8-0f8a1092b74c/bin/uautomizer-ZsLfNo2U6R/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (25)] Ended with exit code 0 [2022-11-25 18:29:35,687 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-25 18:29:35,687 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7352ef4-59fd-4f84-83d8-0f8a1092b74c/bin/uautomizer-ZsLfNo2U6R/z3 [2022-11-25 18:29:35,688 INFO L229 MonitoredProcess]: Starting monitored process 26 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7352ef4-59fd-4f84-83d8-0f8a1092b74c/bin/uautomizer-ZsLfNo2U6R/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-25 18:29:35,692 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7352ef4-59fd-4f84-83d8-0f8a1092b74c/bin/uautomizer-ZsLfNo2U6R/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (26)] Waiting until timeout for monitored process [2022-11-25 18:29:35,692 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 [2022-11-25 18:29:35,708 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-25 18:29:35,708 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-11-25 18:29:35,708 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-25 18:29:35,708 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-25 18:29:35,708 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-25 18:29:35,710 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-11-25 18:29:35,710 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-11-25 18:29:35,720 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2022-11-25 18:29:35,724 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2022-11-25 18:29:35,724 INFO L444 ModelExtractionUtils]: 1 out of 4 variables were initially zero. Simplification set additionally 1 variables to zero. [2022-11-25 18:29:35,724 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-25 18:29:35,724 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7352ef4-59fd-4f84-83d8-0f8a1092b74c/bin/uautomizer-ZsLfNo2U6R/z3 [2022-11-25 18:29:35,733 INFO L229 MonitoredProcess]: Starting monitored process 27 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7352ef4-59fd-4f84-83d8-0f8a1092b74c/bin/uautomizer-ZsLfNo2U6R/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-25 18:29:35,741 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2022-11-25 18:29:35,741 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2022-11-25 18:29:35,741 INFO L513 LassoAnalysis]: Proved termination. [2022-11-25 18:29:35,742 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(mult_~m) = 1*mult_~m Supporting invariants [] [2022-11-25 18:29:35,742 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7352ef4-59fd-4f84-83d8-0f8a1092b74c/bin/uautomizer-ZsLfNo2U6R/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (27)] Waiting until timeout for monitored process [2022-11-25 18:29:35,750 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7352ef4-59fd-4f84-83d8-0f8a1092b74c/bin/uautomizer-ZsLfNo2U6R/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (26)] Forceful destruction successful, exit code 0 [2022-11-25 18:29:35,751 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2022-11-25 18:29:35,764 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 18:29:35,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 18:29:35,778 INFO L263 TraceCheckSpWp]: Trace formula consists of 47 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-25 18:29:35,779 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 18:29:35,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 18:29:35,819 INFO L263 TraceCheckSpWp]: Trace formula consists of 42 conjuncts, 7 conjunts are in the unsatisfiable core [2022-11-25 18:29:35,820 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 18:29:35,858 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 18:29:35,858 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 3 loop predicates [2022-11-25 18:29:35,859 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 15 states and 18 transitions. cyclomatic complexity: 5 Second operand has 5 states, 4 states have (on average 2.25) internal successors, (9), 4 states have internal predecessors, (9), 2 states have call successors, (2), 2 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 18:29:35,898 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 15 states and 18 transitions. cyclomatic complexity: 5. Second operand has 5 states, 4 states have (on average 2.25) internal successors, (9), 4 states have internal predecessors, (9), 2 states have call successors, (2), 2 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 27 states and 32 transitions. Complement of second has 13 states. [2022-11-25 18:29:35,899 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 5 states 1 stem states 3 non-accepting loop states 1 accepting loop states [2022-11-25 18:29:35,899 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5 states, 4 states have (on average 2.25) internal successors, (9), 4 states have internal predecessors, (9), 2 states have call successors, (2), 2 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 18:29:35,900 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 14 transitions. [2022-11-25 18:29:35,900 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 14 transitions. Stem has 7 letters. Loop has 4 letters. [2022-11-25 18:29:35,900 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-11-25 18:29:35,900 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 14 transitions. Stem has 11 letters. Loop has 4 letters. [2022-11-25 18:29:35,901 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-11-25 18:29:35,901 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 14 transitions. Stem has 7 letters. Loop has 8 letters. [2022-11-25 18:29:35,901 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-11-25 18:29:35,901 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 27 states and 32 transitions. [2022-11-25 18:29:35,902 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 5 [2022-11-25 18:29:35,903 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 27 states to 26 states and 31 transitions. [2022-11-25 18:29:35,903 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 16 [2022-11-25 18:29:35,903 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 18 [2022-11-25 18:29:35,904 INFO L73 IsDeterministic]: Start isDeterministic. Operand 26 states and 31 transitions. [2022-11-25 18:29:35,904 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2022-11-25 18:29:35,904 INFO L218 hiAutomatonCegarLoop]: Abstraction has 26 states and 31 transitions. [2022-11-25 18:29:35,904 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26 states and 31 transitions. [2022-11-25 18:29:35,905 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26 to 23. [2022-11-25 18:29:35,906 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23 states, 17 states have (on average 1.2941176470588236) internal successors, (22), 17 states have internal predecessors, (22), 6 states have call successors, (6), 5 states have call predecessors, (6), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 18:29:35,907 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 23 states and 28 transitions. [2022-11-25 18:29:35,907 INFO L240 hiAutomatonCegarLoop]: Abstraction has 23 states and 28 transitions. [2022-11-25 18:29:35,907 INFO L428 stractBuchiCegarLoop]: Abstraction has 23 states and 28 transitions. [2022-11-25 18:29:35,907 INFO L335 stractBuchiCegarLoop]: ======== Iteration 3 ============ [2022-11-25 18:29:35,907 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 23 states and 28 transitions. [2022-11-25 18:29:35,908 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 5 [2022-11-25 18:29:35,908 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-11-25 18:29:35,908 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-11-25 18:29:35,909 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 18:29:35,909 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1] [2022-11-25 18:29:35,909 INFO L748 eck$LassoCheckResult]: Stem: 230#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true; 231#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet2#1, main_#t~nondet3#1, main_#t~ret4#1, main_~m~0#1, main_~n~0#1, main_~res~0#1;main_~m~0#1 := main_#t~nondet2#1;havoc main_#t~nondet2#1;main_~n~0#1 := main_#t~nondet3#1;havoc main_#t~nondet3#1; 246#L26 assume !!(-65535 <= main_~m~0#1 && main_~m~0#1 <= 65535); 238#L27 assume !!(-65535 <= main_~n~0#1 && main_~n~0#1 <= 65535); 239#L28 call main_#t~ret4#1 := mult(main_~m~0#1, main_~n~0#1);< 244#multENTRY ~n := #in~n;~m := #in~m; 250#L13 assume !(~m < 0); 251#L16 assume !(0 == ~m); 233#L19 call #t~ret1 := mult(~n, ~m - 1);< 252#multENTRY ~n := #in~n;~m := #in~m; 232#L13 assume ~m < 0; 234#L14 [2022-11-25 18:29:35,909 INFO L750 eck$LassoCheckResult]: Loop: 234#L14 call #t~ret0 := mult(~n, -~m);< 240#multENTRY ~n := #in~n;~m := #in~m; 242#L13 assume ~m < 0; 234#L14 [2022-11-25 18:29:35,909 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 18:29:35,910 INFO L85 PathProgramCache]: Analyzing trace with hash -1744825059, now seen corresponding path program 1 times [2022-11-25 18:29:35,910 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 18:29:35,910 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [81085033] [2022-11-25 18:29:35,910 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 18:29:35,910 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 18:29:35,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 18:29:36,025 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 18:29:36,026 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 18:29:36,026 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [81085033] [2022-11-25 18:29:36,026 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [81085033] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 18:29:36,027 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 18:29:36,027 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-25 18:29:36,027 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1088655614] [2022-11-25 18:29:36,028 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 18:29:36,045 INFO L753 eck$LassoCheckResult]: stem already infeasible [2022-11-25 18:29:36,046 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 18:29:36,046 INFO L85 PathProgramCache]: Analyzing trace with hash 60546, now seen corresponding path program 2 times [2022-11-25 18:29:36,047 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 18:29:36,051 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [275986827] [2022-11-25 18:29:36,052 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 18:29:36,052 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 18:29:36,052 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7352ef4-59fd-4f84-83d8-0f8a1092b74c/bin/uautomizer-ZsLfNo2U6R/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (27)] Forceful destruction successful, exit code 0 [2022-11-25 18:29:36,057 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7352ef4-59fd-4f84-83d8-0f8a1092b74c/bin/uautomizer-ZsLfNo2U6R/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (17)] Forceful destruction successful, exit code 0 [2022-11-25 18:29:36,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-25 18:29:36,065 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-25 18:29:36,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-25 18:29:36,074 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-25 18:29:36,165 INFO L210 LassoAnalysis]: Preferences: [2022-11-25 18:29:36,166 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-11-25 18:29:36,166 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-11-25 18:29:36,166 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-11-25 18:29:36,166 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2022-11-25 18:29:36,166 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-25 18:29:36,166 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-11-25 18:29:36,166 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-11-25 18:29:36,167 INFO L133 ssoRankerPreferences]: Filename of dumped script: RecursiveMultiplication-1.c_Iteration3_Loop [2022-11-25 18:29:36,167 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-11-25 18:29:36,167 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-11-25 18:29:36,168 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-25 18:29:36,173 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-25 18:29:36,181 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-25 18:29:36,184 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-25 18:29:36,187 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-25 18:29:36,238 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-11-25 18:29:36,238 INFO L404 LassoAnalysis]: Checking for nontermination... [2022-11-25 18:29:36,238 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-25 18:29:36,238 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7352ef4-59fd-4f84-83d8-0f8a1092b74c/bin/uautomizer-ZsLfNo2U6R/z3 [2022-11-25 18:29:36,239 INFO L229 MonitoredProcess]: Starting monitored process 28 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7352ef4-59fd-4f84-83d8-0f8a1092b74c/bin/uautomizer-ZsLfNo2U6R/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-25 18:29:36,250 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-11-25 18:29:36,250 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-11-25 18:29:36,263 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7352ef4-59fd-4f84-83d8-0f8a1092b74c/bin/uautomizer-ZsLfNo2U6R/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (28)] Waiting until timeout for monitored process [2022-11-25 18:29:36,285 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2022-11-25 18:29:36,285 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {mult_~n=-6, mult_#in~n=-6} Honda state: {mult_~n=-6, mult_#in~n=-6} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2022-11-25 18:29:36,291 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7352ef4-59fd-4f84-83d8-0f8a1092b74c/bin/uautomizer-ZsLfNo2U6R/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (28)] Forceful destruction successful, exit code 0 [2022-11-25 18:29:36,291 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-25 18:29:36,291 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7352ef4-59fd-4f84-83d8-0f8a1092b74c/bin/uautomizer-ZsLfNo2U6R/z3 [2022-11-25 18:29:36,292 INFO L229 MonitoredProcess]: Starting monitored process 29 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7352ef4-59fd-4f84-83d8-0f8a1092b74c/bin/uautomizer-ZsLfNo2U6R/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-25 18:29:36,305 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-11-25 18:29:36,305 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-11-25 18:29:36,318 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7352ef4-59fd-4f84-83d8-0f8a1092b74c/bin/uautomizer-ZsLfNo2U6R/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (29)] Waiting until timeout for monitored process [2022-11-25 18:29:36,349 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7352ef4-59fd-4f84-83d8-0f8a1092b74c/bin/uautomizer-ZsLfNo2U6R/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (29)] Forceful destruction successful, exit code 0 [2022-11-25 18:29:36,349 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-25 18:29:36,349 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7352ef4-59fd-4f84-83d8-0f8a1092b74c/bin/uautomizer-ZsLfNo2U6R/z3 [2022-11-25 18:29:36,350 INFO L229 MonitoredProcess]: Starting monitored process 30 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7352ef4-59fd-4f84-83d8-0f8a1092b74c/bin/uautomizer-ZsLfNo2U6R/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-25 18:29:36,354 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2022-11-25 18:29:36,354 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-11-25 18:29:36,367 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7352ef4-59fd-4f84-83d8-0f8a1092b74c/bin/uautomizer-ZsLfNo2U6R/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (30)] Waiting until timeout for monitored process [2022-11-25 18:29:37,130 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2022-11-25 18:29:37,134 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7352ef4-59fd-4f84-83d8-0f8a1092b74c/bin/uautomizer-ZsLfNo2U6R/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (30)] Ended with exit code 0 [2022-11-25 18:29:37,134 INFO L210 LassoAnalysis]: Preferences: [2022-11-25 18:29:37,134 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-11-25 18:29:37,134 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-11-25 18:29:37,134 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-11-25 18:29:37,134 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2022-11-25 18:29:37,134 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-25 18:29:37,134 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-11-25 18:29:37,135 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-11-25 18:29:37,135 INFO L133 ssoRankerPreferences]: Filename of dumped script: RecursiveMultiplication-1.c_Iteration3_Loop [2022-11-25 18:29:37,135 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-11-25 18:29:37,135 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-11-25 18:29:37,136 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-25 18:29:37,146 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-25 18:29:37,154 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-25 18:29:37,157 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-25 18:29:37,160 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-25 18:29:37,227 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-11-25 18:29:37,228 INFO L490 LassoAnalysis]: Using template 'affine'. [2022-11-25 18:29:37,228 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-25 18:29:37,228 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7352ef4-59fd-4f84-83d8-0f8a1092b74c/bin/uautomizer-ZsLfNo2U6R/z3 [2022-11-25 18:29:37,233 INFO L229 MonitoredProcess]: Starting monitored process 31 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7352ef4-59fd-4f84-83d8-0f8a1092b74c/bin/uautomizer-ZsLfNo2U6R/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-25 18:29:37,237 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 [2022-11-25 18:29:37,250 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-25 18:29:37,250 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-11-25 18:29:37,250 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-25 18:29:37,250 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-25 18:29:37,250 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-25 18:29:37,253 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-11-25 18:29:37,253 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-11-25 18:29:37,254 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7352ef4-59fd-4f84-83d8-0f8a1092b74c/bin/uautomizer-ZsLfNo2U6R/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (31)] Waiting until timeout for monitored process [2022-11-25 18:29:37,271 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-11-25 18:29:37,279 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7352ef4-59fd-4f84-83d8-0f8a1092b74c/bin/uautomizer-ZsLfNo2U6R/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (31)] Forceful destruction successful, exit code 0 [2022-11-25 18:29:37,279 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-25 18:29:37,280 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7352ef4-59fd-4f84-83d8-0f8a1092b74c/bin/uautomizer-ZsLfNo2U6R/z3 [2022-11-25 18:29:37,281 INFO L229 MonitoredProcess]: Starting monitored process 32 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7352ef4-59fd-4f84-83d8-0f8a1092b74c/bin/uautomizer-ZsLfNo2U6R/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-25 18:29:37,289 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 [2022-11-25 18:29:37,301 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7352ef4-59fd-4f84-83d8-0f8a1092b74c/bin/uautomizer-ZsLfNo2U6R/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (32)] Waiting until timeout for monitored process [2022-11-25 18:29:37,302 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-25 18:29:37,302 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-11-25 18:29:37,302 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-25 18:29:37,302 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-25 18:29:37,302 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-25 18:29:37,304 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-11-25 18:29:37,304 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-11-25 18:29:37,320 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2022-11-25 18:29:37,333 INFO L443 ModelExtractionUtils]: Simplification made 2 calls to the SMT solver. [2022-11-25 18:29:37,333 INFO L444 ModelExtractionUtils]: 2 out of 4 variables were initially zero. Simplification set additionally 0 variables to zero. [2022-11-25 18:29:37,333 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-25 18:29:37,333 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7352ef4-59fd-4f84-83d8-0f8a1092b74c/bin/uautomizer-ZsLfNo2U6R/z3 [2022-11-25 18:29:37,334 INFO L229 MonitoredProcess]: Starting monitored process 33 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7352ef4-59fd-4f84-83d8-0f8a1092b74c/bin/uautomizer-ZsLfNo2U6R/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-25 18:29:37,341 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2022-11-25 18:29:37,342 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2022-11-25 18:29:37,342 INFO L513 LassoAnalysis]: Proved termination. [2022-11-25 18:29:37,342 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(mult_~m) = 1*mult_~m Supporting invariants [] [2022-11-25 18:29:37,345 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7352ef4-59fd-4f84-83d8-0f8a1092b74c/bin/uautomizer-ZsLfNo2U6R/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (33)] Waiting until timeout for monitored process [2022-11-25 18:29:37,350 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7352ef4-59fd-4f84-83d8-0f8a1092b74c/bin/uautomizer-ZsLfNo2U6R/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (32)] Forceful destruction successful, exit code 0 [2022-11-25 18:29:37,351 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2022-11-25 18:29:37,365 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 18:29:37,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 18:29:37,391 INFO L263 TraceCheckSpWp]: Trace formula consists of 87 conjuncts, 6 conjunts are in the unsatisfiable core [2022-11-25 18:29:37,393 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 18:29:37,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 18:29:37,448 INFO L263 TraceCheckSpWp]: Trace formula consists of 41 conjuncts, 7 conjunts are in the unsatisfiable core [2022-11-25 18:29:37,449 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 18:29:37,480 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 18:29:37,481 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 3 loop predicates [2022-11-25 18:29:37,481 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 23 states and 28 transitions. cyclomatic complexity: 8 Second operand has 4 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 3 states have internal predecessors, (10), 2 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) [2022-11-25 18:29:37,529 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 23 states and 28 transitions. cyclomatic complexity: 8. Second operand has 4 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 3 states have internal predecessors, (10), 2 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 52 states and 62 transitions. Complement of second has 9 states. [2022-11-25 18:29:37,529 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2022-11-25 18:29:37,531 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 3 states have internal predecessors, (10), 2 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) [2022-11-25 18:29:37,532 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 15 transitions. [2022-11-25 18:29:37,532 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 15 transitions. Stem has 11 letters. Loop has 3 letters. [2022-11-25 18:29:37,533 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-11-25 18:29:37,533 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 15 transitions. Stem has 14 letters. Loop has 3 letters. [2022-11-25 18:29:37,533 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-11-25 18:29:37,533 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 15 transitions. Stem has 11 letters. Loop has 6 letters. [2022-11-25 18:29:37,534 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-11-25 18:29:37,534 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 52 states and 62 transitions. [2022-11-25 18:29:37,544 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 5 [2022-11-25 18:29:37,546 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 52 states to 45 states and 55 transitions. [2022-11-25 18:29:37,546 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 26 [2022-11-25 18:29:37,547 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 28 [2022-11-25 18:29:37,547 INFO L73 IsDeterministic]: Start isDeterministic. Operand 45 states and 55 transitions. [2022-11-25 18:29:37,547 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2022-11-25 18:29:37,547 INFO L218 hiAutomatonCegarLoop]: Abstraction has 45 states and 55 transitions. [2022-11-25 18:29:37,547 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 45 states and 55 transitions. [2022-11-25 18:29:37,554 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 45 to 39. [2022-11-25 18:29:37,554 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 39 states, 29 states have (on average 1.206896551724138) internal successors, (35), 28 states have internal predecessors, (35), 10 states have call successors, (13), 10 states have call predecessors, (13), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 18:29:37,558 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39 states to 39 states and 48 transitions. [2022-11-25 18:29:37,558 INFO L240 hiAutomatonCegarLoop]: Abstraction has 39 states and 48 transitions. [2022-11-25 18:29:37,559 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 18:29:37,561 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-25 18:29:37,562 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-11-25 18:29:37,563 INFO L87 Difference]: Start difference. First operand 39 states and 48 transitions. Second operand has 5 states, 3 states have (on average 3.0) internal successors, (9), 4 states have internal predecessors, (9), 2 states have call successors, (2), 2 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 18:29:37,614 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 18:29:37,615 INFO L93 Difference]: Finished difference Result 32 states and 36 transitions. [2022-11-25 18:29:37,615 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 32 states and 36 transitions. [2022-11-25 18:29:37,618 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2022-11-25 18:29:37,619 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 32 states to 0 states and 0 transitions. [2022-11-25 18:29:37,619 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2022-11-25 18:29:37,619 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2022-11-25 18:29:37,619 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2022-11-25 18:29:37,619 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-25 18:29:37,620 INFO L218 hiAutomatonCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-11-25 18:29:37,620 INFO L240 hiAutomatonCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-11-25 18:29:37,622 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-25 18:29:37,623 INFO L428 stractBuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-11-25 18:29:37,623 INFO L335 stractBuchiCegarLoop]: ======== Iteration 4 ============ [2022-11-25 18:29:37,623 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2022-11-25 18:29:37,623 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2022-11-25 18:29:37,624 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2022-11-25 18:29:37,630 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 25.11 06:29:37 BoogieIcfgContainer [2022-11-25 18:29:37,630 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2022-11-25 18:29:37,631 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-25 18:29:37,631 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-25 18:29:37,631 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-25 18:29:37,632 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 06:29:29" (3/4) ... [2022-11-25 18:29:37,637 INFO L140 WitnessPrinter]: No result that supports witness generation found [2022-11-25 18:29:37,637 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-25 18:29:37,639 INFO L158 Benchmark]: Toolchain (without parser) took 8552.82ms. Allocated memory was 146.8MB in the beginning and 184.5MB in the end (delta: 37.7MB). Free memory was 116.0MB in the beginning and 117.2MB in the end (delta: -1.2MB). Peak memory consumption was 39.1MB. Max. memory is 16.1GB. [2022-11-25 18:29:37,640 INFO L158 Benchmark]: CDTParser took 0.19ms. Allocated memory is still 146.8MB. Free memory is still 92.5MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-25 18:29:37,640 INFO L158 Benchmark]: CACSL2BoogieTranslator took 263.20ms. Allocated memory is still 146.8MB. Free memory was 116.0MB in the beginning and 107.0MB in the end (delta: 9.0MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2022-11-25 18:29:37,641 INFO L158 Benchmark]: Boogie Procedure Inliner took 32.05ms. Allocated memory is still 146.8MB. Free memory was 107.0MB in the beginning and 105.3MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-25 18:29:37,641 INFO L158 Benchmark]: Boogie Preprocessor took 23.66ms. Allocated memory is still 146.8MB. Free memory was 105.3MB in the beginning and 104.2MB in the end (delta: 1.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-25 18:29:37,641 INFO L158 Benchmark]: RCFGBuilder took 268.99ms. Allocated memory is still 146.8MB. Free memory was 104.2MB in the beginning and 95.2MB in the end (delta: 9.0MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2022-11-25 18:29:37,642 INFO L158 Benchmark]: BuchiAutomizer took 7949.47ms. Allocated memory was 146.8MB in the beginning and 184.5MB in the end (delta: 37.7MB). Free memory was 94.8MB in the beginning and 118.2MB in the end (delta: -23.4MB). Peak memory consumption was 16.0MB. Max. memory is 16.1GB. [2022-11-25 18:29:37,642 INFO L158 Benchmark]: Witness Printer took 5.87ms. Allocated memory is still 184.5MB. Free memory is still 117.2MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-25 18:29:37,644 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.19ms. Allocated memory is still 146.8MB. Free memory is still 92.5MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 263.20ms. Allocated memory is still 146.8MB. Free memory was 116.0MB in the beginning and 107.0MB in the end (delta: 9.0MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 32.05ms. Allocated memory is still 146.8MB. Free memory was 107.0MB in the beginning and 105.3MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 23.66ms. Allocated memory is still 146.8MB. Free memory was 105.3MB in the beginning and 104.2MB in the end (delta: 1.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 268.99ms. Allocated memory is still 146.8MB. Free memory was 104.2MB in the beginning and 95.2MB in the end (delta: 9.0MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * BuchiAutomizer took 7949.47ms. Allocated memory was 146.8MB in the beginning and 184.5MB in the end (delta: 37.7MB). Free memory was 94.8MB in the beginning and 118.2MB in the end (delta: -23.4MB). Peak memory consumption was 16.0MB. Max. memory is 16.1GB. * Witness Printer took 5.87ms. Allocated memory is still 184.5MB. Free memory is still 117.2MB. There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 4 terminating modules (1 trivial, 3 deterministic, 0 nondeterministic). One deterministic module has affine ranking function -1 * \old(m) and consists of 4 locations. One deterministic module has affine ranking function m and consists of 5 locations. One deterministic module has affine ranking function m and consists of 4 locations. 1 modules have a trivial ranking function, the largest among these consists of 5 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 7.8s and 4 iterations. TraceHistogramMax:2. Analysis of lassos took 6.9s. Construction of modules took 0.0s. Büchi inclusion checks took 0.6s. Highest rank in rank-based complementation 3. Minimization of det autom 1. Minimization of nondet autom 3. Automata minimization 0.0s AutomataMinimizationTime, 3 MinimizatonAttempts, 16 StatesRemovedByMinimization, 3 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had -1 states and ocurred in iteration -1. Nontrivial modules had stage [3, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 51 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 48 mSDsluCounter, 64 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 18 mSDsCounter, 9 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 82 IncrementalHoareTripleChecker+Invalid, 91 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 9 mSolverCounterUnsat, 46 mSDtfsCounter, 82 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown LassoAnalysisResults: nont0 unkn0 SFLI0 SFLT2 conc0 concLT0 SILN0 SILU0 SILI0 SILT1 lasso0 LassoPreprocessingBenchmarks: Lassos: inital17 mio100 ax100 hnf100 lsp71 ukn100 mio100 lsp100 div100 bol100 ite100 ukn100 eq169 hnf92 smp100 dnf100 smp100 tf110 neg98 sie106 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 84ms VariablesStem: 0 VariablesLoop: 0 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 0 MotzkinApplications: 2 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 10 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 3 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 4.6s InitialAbstractionConstructionTime: 0.0s - TerminationAnalysisResult: Termination proven Buchi Automizer proved that your program is terminating RESULT: Ultimate proved your program to be correct! [2022-11-25 18:29:37,663 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7352ef4-59fd-4f84-83d8-0f8a1092b74c/bin/uautomizer-ZsLfNo2U6R/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (33)] Forceful destruction successful, exit code 0 [2022-11-25 18:29:37,863 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7352ef4-59fd-4f84-83d8-0f8a1092b74c/bin/uautomizer-ZsLfNo2U6R/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