./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/recursive/McCarthy91-1.c --full-output --architecture 32bit -------------------------------------------------------------------------------- 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_ce27eed8-b0f2-45df-849d-b78c98118d93/bin/uautomizer-ZsLfNo2U6R/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce27eed8-b0f2-45df-849d-b78c98118d93/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_ce27eed8-b0f2-45df-849d-b78c98118d93/bin/uautomizer-ZsLfNo2U6R/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce27eed8-b0f2-45df-849d-b78c98118d93/bin/uautomizer-ZsLfNo2U6R/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/recursive/McCarthy91-1.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce27eed8-b0f2-45df-849d-b78c98118d93/bin/uautomizer-ZsLfNo2U6R/config/svcomp-Termination-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce27eed8-b0f2-45df-849d-b78c98118d93/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 32bit --witnessprinter.graph.data.programhash a7241ade69e14c61e98aa837796de568ecf31fbd07f5084e15c262d93cdb3376 --- 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 18:28:53,257 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-25 18:28:53,259 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-25 18:28:53,286 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-25 18:28:53,287 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-25 18:28:53,288 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-25 18:28:53,290 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-25 18:28:53,292 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-25 18:28:53,294 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-25 18:28:53,296 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-25 18:28:53,297 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-25 18:28:53,298 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-25 18:28:53,299 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-25 18:28:53,301 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-25 18:28:53,302 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-25 18:28:53,304 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-25 18:28:53,305 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-25 18:28:53,306 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-25 18:28:53,308 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-25 18:28:53,311 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-25 18:28:53,313 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-25 18:28:53,315 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-25 18:28:53,316 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-25 18:28:53,318 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-25 18:28:53,322 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-25 18:28:53,323 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-25 18:28:53,324 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-25 18:28:53,325 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-25 18:28:53,326 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-25 18:28:53,327 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-25 18:28:53,328 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-25 18:28:53,329 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-25 18:28:53,330 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-25 18:28:53,331 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-25 18:28:53,333 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-25 18:28:53,334 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-25 18:28:53,335 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-25 18:28:53,335 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-25 18:28:53,336 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-25 18:28:53,337 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-25 18:28:53,338 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-25 18:28:53,340 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce27eed8-b0f2-45df-849d-b78c98118d93/bin/uautomizer-ZsLfNo2U6R/config/svcomp-Termination-32bit-Automizer_Default.epf [2022-11-25 18:28:53,368 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-25 18:28:53,369 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-25 18:28:53,370 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-25 18:28:53,370 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-25 18:28:53,371 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-25 18:28:53,372 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-25 18:28:53,372 INFO L138 SettingsManager]: * Use SBE=true [2022-11-25 18:28:53,373 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2022-11-25 18:28:53,373 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2022-11-25 18:28:53,373 INFO L138 SettingsManager]: * Use old map elimination=false [2022-11-25 18:28:53,374 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2022-11-25 18:28:53,374 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2022-11-25 18:28:53,374 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2022-11-25 18:28:53,375 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-25 18:28:53,375 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-25 18:28:53,376 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-25 18:28:53,376 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-25 18:28:53,376 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-25 18:28:53,377 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-25 18:28:53,377 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2022-11-25 18:28:53,377 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2022-11-25 18:28:53,378 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2022-11-25 18:28:53,378 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-25 18:28:53,378 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-25 18:28:53,379 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2022-11-25 18:28:53,379 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-25 18:28:53,379 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2022-11-25 18:28:53,380 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-25 18:28:53,380 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-25 18:28:53,381 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-25 18:28:53,381 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-25 18:28:53,382 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2022-11-25 18:28:53,383 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_ce27eed8-b0f2-45df-849d-b78c98118d93/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce27eed8-b0f2-45df-849d-b78c98118d93/bin/uautomizer-ZsLfNo2U6R Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> a7241ade69e14c61e98aa837796de568ecf31fbd07f5084e15c262d93cdb3376 [2022-11-25 18:28:53,655 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-25 18:28:53,681 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-25 18:28:53,684 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-25 18:28:53,686 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-25 18:28:53,687 INFO L275 PluginConnector]: CDTParser initialized [2022-11-25 18:28:53,689 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce27eed8-b0f2-45df-849d-b78c98118d93/bin/uautomizer-ZsLfNo2U6R/../../sv-benchmarks/c/recursive/McCarthy91-1.c [2022-11-25 18:28:57,165 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-25 18:28:57,421 INFO L351 CDTParser]: Found 1 translation units. [2022-11-25 18:28:57,422 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce27eed8-b0f2-45df-849d-b78c98118d93/sv-benchmarks/c/recursive/McCarthy91-1.c [2022-11-25 18:28:57,428 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce27eed8-b0f2-45df-849d-b78c98118d93/bin/uautomizer-ZsLfNo2U6R/data/6ede2f951/55ea46ade1db47738cd75b754198f272/FLAGbf027ac72 [2022-11-25 18:28:57,445 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce27eed8-b0f2-45df-849d-b78c98118d93/bin/uautomizer-ZsLfNo2U6R/data/6ede2f951/55ea46ade1db47738cd75b754198f272 [2022-11-25 18:28:57,449 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-25 18:28:57,450 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-25 18:28:57,452 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-25 18:28:57,453 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-25 18:28:57,466 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-25 18:28:57,467 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 06:28:57" (1/1) ... [2022-11-25 18:28:57,468 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@110ddf93 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:28:57, skipping insertion in model container [2022-11-25 18:28:57,469 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 06:28:57" (1/1) ... [2022-11-25 18:28:57,478 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-25 18:28:57,493 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-25 18:28:57,666 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce27eed8-b0f2-45df-849d-b78c98118d93/sv-benchmarks/c/recursive/McCarthy91-1.c[749,762] [2022-11-25 18:28:57,667 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-25 18:28:57,686 INFO L203 MainTranslator]: Completed pre-run [2022-11-25 18:28:57,708 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce27eed8-b0f2-45df-849d-b78c98118d93/sv-benchmarks/c/recursive/McCarthy91-1.c[749,762] [2022-11-25 18:28:57,709 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-25 18:28:57,724 INFO L208 MainTranslator]: Completed translation [2022-11-25 18:28:57,724 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:28:57 WrapperNode [2022-11-25 18:28:57,725 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-25 18:28:57,726 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-25 18:28:57,726 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-25 18:28:57,727 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-25 18:28:57,736 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:28:57" (1/1) ... [2022-11-25 18:28:57,742 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:28:57" (1/1) ... [2022-11-25 18:28:57,758 INFO L138 Inliner]: procedures = 13, calls = 10, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 21 [2022-11-25 18:28:57,759 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-25 18:28:57,759 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-25 18:28:57,759 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-25 18:28:57,759 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-25 18:28:57,767 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:28:57" (1/1) ... [2022-11-25 18:28:57,768 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:28:57" (1/1) ... [2022-11-25 18:28:57,769 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:28:57" (1/1) ... [2022-11-25 18:28:57,770 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:28:57" (1/1) ... [2022-11-25 18:28:57,773 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:28:57" (1/1) ... [2022-11-25 18:28:57,774 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:28:57" (1/1) ... [2022-11-25 18:28:57,775 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:28:57" (1/1) ... [2022-11-25 18:28:57,776 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:28:57" (1/1) ... [2022-11-25 18:28:57,778 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-25 18:28:57,779 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-25 18:28:57,779 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-25 18:28:57,780 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-25 18:28:57,781 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:28:57" (1/1) ... [2022-11-25 18:28:57,789 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-25 18:28:57,803 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce27eed8-b0f2-45df-849d-b78c98118d93/bin/uautomizer-ZsLfNo2U6R/z3 [2022-11-25 18:28:57,818 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce27eed8-b0f2-45df-849d-b78c98118d93/bin/uautomizer-ZsLfNo2U6R/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-25 18:28:57,831 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce27eed8-b0f2-45df-849d-b78c98118d93/bin/uautomizer-ZsLfNo2U6R/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2022-11-25 18:28:57,874 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-25 18:28:57,874 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-25 18:28:57,874 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-25 18:28:57,874 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-25 18:28:57,875 INFO L130 BoogieDeclarations]: Found specification of procedure f91 [2022-11-25 18:28:57,876 INFO L138 BoogieDeclarations]: Found implementation of procedure f91 [2022-11-25 18:28:57,952 INFO L235 CfgBuilder]: Building ICFG [2022-11-25 18:28:57,955 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-25 18:28:58,057 INFO L276 CfgBuilder]: Performing block encoding [2022-11-25 18:28:58,064 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-25 18:28:58,065 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-11-25 18:28:58,067 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 06:28:58 BoogieIcfgContainer [2022-11-25 18:28:58,067 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-25 18:28:58,069 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2022-11-25 18:28:58,069 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2022-11-25 18:28:58,074 INFO L275 PluginConnector]: BuchiAutomizer initialized [2022-11-25 18:28:58,075 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-11-25 18:28:58,076 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 25.11 06:28:57" (1/3) ... [2022-11-25 18:28:58,077 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@58fdb0b3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 25.11 06:28:58, skipping insertion in model container [2022-11-25 18:28:58,077 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-11-25 18:28:58,078 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:28:57" (2/3) ... [2022-11-25 18:28:58,078 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@58fdb0b3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 25.11 06:28:58, skipping insertion in model container [2022-11-25 18:28:58,078 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-11-25 18:28:58,079 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 06:28:58" (3/3) ... [2022-11-25 18:28:58,080 INFO L332 chiAutomizerObserver]: Analyzing ICFG McCarthy91-1.c [2022-11-25 18:28:58,159 INFO L303 stractBuchiCegarLoop]: Interprodecural is true [2022-11-25 18:28:58,161 INFO L304 stractBuchiCegarLoop]: Hoare is false [2022-11-25 18:28:58,162 INFO L305 stractBuchiCegarLoop]: Compute interpolants for ForwardPredicates [2022-11-25 18:28:58,162 INFO L306 stractBuchiCegarLoop]: Backedges is STRAIGHT_LINE [2022-11-25 18:28:58,162 INFO L307 stractBuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2022-11-25 18:28:58,163 INFO L308 stractBuchiCegarLoop]: Difference is false [2022-11-25 18:28:58,163 INFO L309 stractBuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2022-11-25 18:28:58,163 INFO L313 stractBuchiCegarLoop]: ======== Iteration 0 == of CEGAR loop == BuchiAutomatonCegarLoop ======== [2022-11-25 18:28:58,172 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 16 states, 11 states have (on average 1.1818181818181819) internal successors, (13), 11 states have internal predecessors, (13), 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 18:28:58,207 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2022-11-25 18:28:58,208 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-11-25 18:28:58,208 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-11-25 18:28:58,216 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1] [2022-11-25 18:28:58,216 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1] [2022-11-25 18:28:58,216 INFO L335 stractBuchiCegarLoop]: ======== Iteration 1 ============ [2022-11-25 18:28:58,217 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 16 states, 11 states have (on average 1.1818181818181819) internal successors, (13), 11 states have internal predecessors, (13), 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 18:28:58,221 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2022-11-25 18:28:58,221 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-11-25 18:28:58,222 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-11-25 18:28:58,222 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1] [2022-11-25 18:28:58,223 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1] [2022-11-25 18:28:58,236 INFO L748 eck$LassoCheckResult]: Stem: 3#ULTIMATE.startENTRYtrue assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int(48, 1, 0, 1);call write~init~int(0, 1, 1, 1);call #Ultimate.allocInit(15, 2);call #Ultimate.allocInit(12, 3); 8#L-1true assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet6#1, main_#t~ret7#1, main_~x~0#1, main_~result~0#1;main_~x~0#1 := main_#t~nondet6#1;havoc main_#t~nondet6#1; 14#L28true call main_#t~ret7#1 := f91(main_~x~0#1);< 6#f91ENTRYtrue [2022-11-25 18:28:58,237 INFO L750 eck$LassoCheckResult]: Loop: 6#f91ENTRYtrue ~x := #in~x; 10#L18true assume !(~x > 100); 11#L21true call #t~ret4 := f91(11 + ~x);< 6#f91ENTRYtrue [2022-11-25 18:28:58,254 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 18:28:58,255 INFO L85 PathProgramCache]: Analyzing trace with hash 29877, now seen corresponding path program 1 times [2022-11-25 18:28:58,270 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 18:28:58,271 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1661597475] [2022-11-25 18:28:58,271 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 18:28:58,272 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 18:28:58,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-25 18:28:58,426 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-25 18:28:58,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-25 18:28:58,479 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-25 18:28:58,484 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 18:28:58,484 INFO L85 PathProgramCache]: Analyzing trace with hash 44821, now seen corresponding path program 1 times [2022-11-25 18:28:58,485 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 18:28:58,485 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1789052605] [2022-11-25 18:28:58,486 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 18:28:58,486 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 18:28:58,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-25 18:28:58,506 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-25 18:28:58,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-25 18:28:58,514 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-25 18:28:58,517 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 18:28:58,517 INFO L85 PathProgramCache]: Analyzing trace with hash 890080737, now seen corresponding path program 1 times [2022-11-25 18:28:58,517 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 18:28:58,518 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [227425884] [2022-11-25 18:28:58,518 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 18:28:58,519 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 18:28:58,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-25 18:28:58,547 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-25 18:28:58,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-25 18:28:58,573 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-25 18:28:58,686 INFO L210 LassoAnalysis]: Preferences: [2022-11-25 18:28:58,687 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-11-25 18:28:58,687 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-11-25 18:28:58,687 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-11-25 18:28:58,688 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2022-11-25 18:28:58,688 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-25 18:28:58,688 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-11-25 18:28:58,688 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-11-25 18:28:58,689 INFO L133 ssoRankerPreferences]: Filename of dumped script: McCarthy91-1.c_Iteration1_Loop [2022-11-25 18:28:58,689 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-11-25 18:28:58,689 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-11-25 18:28:58,708 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 18:28:58,721 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 18:28:58,733 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 18:28:58,737 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 18:28:58,741 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 18:28:58,796 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-11-25 18:28:58,797 INFO L404 LassoAnalysis]: Checking for nontermination... [2022-11-25 18:28:58,799 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-25 18:28:58,800 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce27eed8-b0f2-45df-849d-b78c98118d93/bin/uautomizer-ZsLfNo2U6R/z3 [2022-11-25 18:28:58,822 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce27eed8-b0f2-45df-849d-b78c98118d93/bin/uautomizer-ZsLfNo2U6R/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-25 18:28:58,831 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce27eed8-b0f2-45df-849d-b78c98118d93/bin/uautomizer-ZsLfNo2U6R/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Waiting until timeout for monitored process [2022-11-25 18:28:58,839 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-11-25 18:28:58,839 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-11-25 18:28:58,871 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2022-11-25 18:28:58,872 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {f91_#res=0} Honda state: {f91_#res=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2022-11-25 18:28:58,879 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce27eed8-b0f2-45df-849d-b78c98118d93/bin/uautomizer-ZsLfNo2U6R/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Ended with exit code 0 [2022-11-25 18:28:58,879 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-25 18:28:58,880 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce27eed8-b0f2-45df-849d-b78c98118d93/bin/uautomizer-ZsLfNo2U6R/z3 [2022-11-25 18:28:58,882 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce27eed8-b0f2-45df-849d-b78c98118d93/bin/uautomizer-ZsLfNo2U6R/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-25 18:28:58,885 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce27eed8-b0f2-45df-849d-b78c98118d93/bin/uautomizer-ZsLfNo2U6R/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Waiting until timeout for monitored process [2022-11-25 18:28:58,887 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-11-25 18:28:58,891 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-11-25 18:28:58,935 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce27eed8-b0f2-45df-849d-b78c98118d93/bin/uautomizer-ZsLfNo2U6R/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Forceful destruction successful, exit code 0 [2022-11-25 18:28:58,936 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-25 18:28:58,936 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce27eed8-b0f2-45df-849d-b78c98118d93/bin/uautomizer-ZsLfNo2U6R/z3 [2022-11-25 18:28:58,937 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce27eed8-b0f2-45df-849d-b78c98118d93/bin/uautomizer-ZsLfNo2U6R/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-25 18:28:58,982 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce27eed8-b0f2-45df-849d-b78c98118d93/bin/uautomizer-ZsLfNo2U6R/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Waiting until timeout for monitored process [2022-11-25 18:28:58,983 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2022-11-25 18:28:58,984 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-11-25 18:28:59,691 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2022-11-25 18:28:59,699 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce27eed8-b0f2-45df-849d-b78c98118d93/bin/uautomizer-ZsLfNo2U6R/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Ended with exit code 0 [2022-11-25 18:28:59,699 INFO L210 LassoAnalysis]: Preferences: [2022-11-25 18:28:59,700 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-11-25 18:28:59,700 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-11-25 18:28:59,700 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-11-25 18:28:59,700 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2022-11-25 18:28:59,700 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-25 18:28:59,700 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-11-25 18:28:59,700 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-11-25 18:28:59,701 INFO L133 ssoRankerPreferences]: Filename of dumped script: McCarthy91-1.c_Iteration1_Loop [2022-11-25 18:28:59,701 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-11-25 18:28:59,701 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-11-25 18:28:59,703 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 18:28:59,710 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 18:28:59,720 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 18:28:59,724 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-25 18:28:59,728 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 18:28:59,816 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-11-25 18:28:59,821 INFO L490 LassoAnalysis]: Using template 'affine'. [2022-11-25 18:28:59,832 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-25 18:28:59,832 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce27eed8-b0f2-45df-849d-b78c98118d93/bin/uautomizer-ZsLfNo2U6R/z3 [2022-11-25 18:28:59,834 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce27eed8-b0f2-45df-849d-b78c98118d93/bin/uautomizer-ZsLfNo2U6R/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-25 18:28:59,837 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce27eed8-b0f2-45df-849d-b78c98118d93/bin/uautomizer-ZsLfNo2U6R/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Waiting until timeout for monitored process [2022-11-25 18:28:59,839 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 18:28:59,852 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-25 18:28:59,853 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-11-25 18:28:59,853 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-25 18:28:59,854 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-25 18:28:59,854 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-25 18:28:59,857 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-11-25 18:28:59,857 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-11-25 18:28:59,874 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-11-25 18:28:59,879 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce27eed8-b0f2-45df-849d-b78c98118d93/bin/uautomizer-ZsLfNo2U6R/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Forceful destruction successful, exit code 0 [2022-11-25 18:28:59,879 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-25 18:28:59,880 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce27eed8-b0f2-45df-849d-b78c98118d93/bin/uautomizer-ZsLfNo2U6R/z3 [2022-11-25 18:28:59,882 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce27eed8-b0f2-45df-849d-b78c98118d93/bin/uautomizer-ZsLfNo2U6R/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-25 18:28:59,884 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce27eed8-b0f2-45df-849d-b78c98118d93/bin/uautomizer-ZsLfNo2U6R/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Waiting until timeout for monitored process [2022-11-25 18:28:59,885 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 18:28:59,897 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-25 18:28:59,897 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-11-25 18:28:59,898 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-25 18:28:59,898 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-25 18:28:59,898 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-25 18:28:59,900 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-11-25 18:28:59,900 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-11-25 18:28:59,931 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2022-11-25 18:28:59,946 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2022-11-25 18:28:59,946 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. [2022-11-25 18:28:59,948 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-25 18:28:59,948 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce27eed8-b0f2-45df-849d-b78c98118d93/bin/uautomizer-ZsLfNo2U6R/z3 [2022-11-25 18:28:59,994 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce27eed8-b0f2-45df-849d-b78c98118d93/bin/uautomizer-ZsLfNo2U6R/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-25 18:28:59,996 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2022-11-25 18:28:59,997 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2022-11-25 18:28:59,997 INFO L513 LassoAnalysis]: Proved termination. [2022-11-25 18:28:59,997 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(f91_#in~x) = -2*f91_#in~x + 211 Supporting invariants [] [2022-11-25 18:29:00,010 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce27eed8-b0f2-45df-849d-b78c98118d93/bin/uautomizer-ZsLfNo2U6R/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Waiting until timeout for monitored process [2022-11-25 18:29:00,010 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce27eed8-b0f2-45df-849d-b78c98118d93/bin/uautomizer-ZsLfNo2U6R/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Forceful destruction successful, exit code 0 [2022-11-25 18:29:00,015 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2022-11-25 18:29:00,062 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 18:29:00,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 18:29:00,120 INFO L263 TraceCheckSpWp]: Trace formula consists of 58 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-25 18:29:00,123 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 18:29:00,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 18:29:00,159 INFO L263 TraceCheckSpWp]: Trace formula consists of 37 conjuncts, 7 conjunts are in the unsatisfiable core [2022-11-25 18:29:00,164 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 18:29:00,268 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 18:29:00,327 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 18:29:00,331 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand has 16 states, 11 states have (on average 1.1818181818181819) internal successors, (13), 11 states have internal predecessors, (13), 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 1.3333333333333333) internal successors, (4), 3 states have internal predecessors, (4), 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 18:29:00,440 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand has 16 states, 11 states have (on average 1.1818181818181819) internal successors, (13), 11 states have internal predecessors, (13), 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 1.3333333333333333) internal successors, (4), 3 states have internal predecessors, (4), 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 34 states and 42 transitions. Complement of second has 12 states. [2022-11-25 18:29:00,443 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 18:29:00,449 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4 states, 3 states have (on average 1.3333333333333333) internal successors, (4), 3 states have internal predecessors, (4), 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 18:29:00,450 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 8 transitions. [2022-11-25 18:29:00,452 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 8 transitions. Stem has 3 letters. Loop has 3 letters. [2022-11-25 18:29:00,453 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-11-25 18:29:00,454 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 8 transitions. Stem has 6 letters. Loop has 3 letters. [2022-11-25 18:29:00,454 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-11-25 18:29:00,454 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 8 transitions. Stem has 3 letters. Loop has 6 letters. [2022-11-25 18:29:00,455 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-11-25 18:29:00,456 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 34 states and 42 transitions. [2022-11-25 18:29:00,460 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2022-11-25 18:29:00,467 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 34 states to 19 states and 25 transitions. [2022-11-25 18:29:00,468 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 13 [2022-11-25 18:29:00,469 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 14 [2022-11-25 18:29:00,469 INFO L73 IsDeterministic]: Start isDeterministic. Operand 19 states and 25 transitions. [2022-11-25 18:29:00,471 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2022-11-25 18:29:00,471 INFO L218 hiAutomatonCegarLoop]: Abstraction has 19 states and 25 transitions. [2022-11-25 18:29:00,493 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19 states and 25 transitions. [2022-11-25 18:29:00,507 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19 to 17. [2022-11-25 18:29:00,507 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17 states, 11 states have (on average 1.1818181818181819) internal successors, (13), 11 states have internal predecessors, (13), 4 states have call successors, (4), 3 states have call predecessors, (4), 2 states have return successors, (4), 2 states have call predecessors, (4), 3 states have call successors, (4) [2022-11-25 18:29:00,508 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 21 transitions. [2022-11-25 18:29:00,510 INFO L240 hiAutomatonCegarLoop]: Abstraction has 17 states and 21 transitions. [2022-11-25 18:29:00,510 INFO L428 stractBuchiCegarLoop]: Abstraction has 17 states and 21 transitions. [2022-11-25 18:29:00,511 INFO L335 stractBuchiCegarLoop]: ======== Iteration 2 ============ [2022-11-25 18:29:00,511 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 17 states and 21 transitions. [2022-11-25 18:29:00,512 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2022-11-25 18:29:00,512 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-11-25 18:29:00,513 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-11-25 18:29:00,514 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [2, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 18:29:00,514 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [2, 1, 1, 1, 1, 1, 1] [2022-11-25 18:29:00,515 INFO L748 eck$LassoCheckResult]: Stem: 102#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int(48, 1, 0, 1);call write~init~int(0, 1, 1, 1);call #Ultimate.allocInit(15, 2);call #Ultimate.allocInit(12, 3); 103#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet6#1, main_#t~ret7#1, main_~x~0#1, main_~result~0#1;main_~x~0#1 := main_#t~nondet6#1;havoc main_#t~nondet6#1; 108#L28 call main_#t~ret7#1 := f91(main_~x~0#1);< 110#f91ENTRY ~x := #in~x; 113#L18 assume !(~x > 100); 105#L21 call #t~ret4 := f91(11 + ~x);< 114#f91ENTRY ~x := #in~x; 115#L18 assume ~x > 100;#res := ~x - 10; 116#f91FINAL assume true; 104#f91EXIT >#27#return; 106#L21-1 [2022-11-25 18:29:00,515 INFO L750 eck$LassoCheckResult]: Loop: 106#L21-1 call #t~ret5 := f91(#t~ret4);< 109#f91ENTRY ~x := #in~x; 118#L18 assume !(~x > 100); 107#L21 call #t~ret4 := f91(11 + ~x);< 109#f91ENTRY ~x := #in~x; 118#L18 assume ~x > 100;#res := ~x - 10; 112#f91FINAL assume true; 117#f91EXIT >#27#return; 106#L21-1 [2022-11-25 18:29:00,516 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 18:29:00,516 INFO L85 PathProgramCache]: Analyzing trace with hash -1243034264, now seen corresponding path program 1 times [2022-11-25 18:29:00,516 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 18:29:00,516 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1750449942] [2022-11-25 18:29:00,517 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 18:29:00,517 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 18:29:00,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-25 18:29:00,530 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-25 18:29:00,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-25 18:29:00,543 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-25 18:29:00,543 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 18:29:00,544 INFO L85 PathProgramCache]: Analyzing trace with hash 742678306, now seen corresponding path program 1 times [2022-11-25 18:29:00,544 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 18:29:00,544 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1480748281] [2022-11-25 18:29:00,545 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 18:29:00,545 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 18:29:00,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-25 18:29:00,553 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-25 18:29:00,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-25 18:29:00,560 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-25 18:29:00,561 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 18:29:00,561 INFO L85 PathProgramCache]: Analyzing trace with hash -291973751, now seen corresponding path program 1 times [2022-11-25 18:29:00,562 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 18:29:00,562 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [634820407] [2022-11-25 18:29:00,562 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 18:29:00,563 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 18:29:00,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-25 18:29:00,580 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-25 18:29:00,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-25 18:29:00,598 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-25 18:29:00,806 INFO L210 LassoAnalysis]: Preferences: [2022-11-25 18:29:00,807 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-11-25 18:29:00,807 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-11-25 18:29:00,807 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-11-25 18:29:00,807 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2022-11-25 18:29:00,807 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-25 18:29:00,808 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-11-25 18:29:00,808 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-11-25 18:29:00,808 INFO L133 ssoRankerPreferences]: Filename of dumped script: McCarthy91-1.c_Iteration2_Loop [2022-11-25 18:29:00,808 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-11-25 18:29:00,808 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-11-25 18:29:00,810 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 18:29:00,827 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 18:29:00,831 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 18:29:00,909 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-11-25 18:29:00,910 INFO L404 LassoAnalysis]: Checking for nontermination... [2022-11-25 18:29:00,910 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-25 18:29:00,910 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce27eed8-b0f2-45df-849d-b78c98118d93/bin/uautomizer-ZsLfNo2U6R/z3 [2022-11-25 18:29:00,924 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce27eed8-b0f2-45df-849d-b78c98118d93/bin/uautomizer-ZsLfNo2U6R/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-25 18:29:00,939 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce27eed8-b0f2-45df-849d-b78c98118d93/bin/uautomizer-ZsLfNo2U6R/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Waiting until timeout for monitored process [2022-11-25 18:29:00,940 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-11-25 18:29:00,941 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-11-25 18:29:00,975 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2022-11-25 18:29:00,976 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {f91_#t~ret5=0} Honda state: {f91_#t~ret5=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2022-11-25 18:29:00,990 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce27eed8-b0f2-45df-849d-b78c98118d93/bin/uautomizer-ZsLfNo2U6R/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Forceful destruction successful, exit code 0 [2022-11-25 18:29:00,991 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-25 18:29:00,991 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce27eed8-b0f2-45df-849d-b78c98118d93/bin/uautomizer-ZsLfNo2U6R/z3 [2022-11-25 18:29:00,993 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce27eed8-b0f2-45df-849d-b78c98118d93/bin/uautomizer-ZsLfNo2U6R/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-25 18:29:00,998 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-11-25 18:29:00,998 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-11-25 18:29:00,999 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce27eed8-b0f2-45df-849d-b78c98118d93/bin/uautomizer-ZsLfNo2U6R/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Waiting until timeout for monitored process [2022-11-25 18:29:01,016 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2022-11-25 18:29:01,016 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {f91_#res=0} Honda state: {f91_#res=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2022-11-25 18:29:01,019 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce27eed8-b0f2-45df-849d-b78c98118d93/bin/uautomizer-ZsLfNo2U6R/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Ended with exit code 0 [2022-11-25 18:29:01,020 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-25 18:29:01,020 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce27eed8-b0f2-45df-849d-b78c98118d93/bin/uautomizer-ZsLfNo2U6R/z3 [2022-11-25 18:29:01,021 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce27eed8-b0f2-45df-849d-b78c98118d93/bin/uautomizer-ZsLfNo2U6R/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-25 18:29:01,022 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce27eed8-b0f2-45df-849d-b78c98118d93/bin/uautomizer-ZsLfNo2U6R/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Waiting until timeout for monitored process [2022-11-25 18:29:01,024 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-11-25 18:29:01,024 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-11-25 18:29:01,078 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce27eed8-b0f2-45df-849d-b78c98118d93/bin/uautomizer-ZsLfNo2U6R/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Forceful destruction successful, exit code 0 [2022-11-25 18:29:01,078 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-25 18:29:01,078 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce27eed8-b0f2-45df-849d-b78c98118d93/bin/uautomizer-ZsLfNo2U6R/z3 [2022-11-25 18:29:01,080 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce27eed8-b0f2-45df-849d-b78c98118d93/bin/uautomizer-ZsLfNo2U6R/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-25 18:29:01,089 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2022-11-25 18:29:01,089 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-11-25 18:29:01,105 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce27eed8-b0f2-45df-849d-b78c98118d93/bin/uautomizer-ZsLfNo2U6R/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Waiting until timeout for monitored process [2022-11-25 18:29:13,154 INFO L442 LassoAnalysis]: Proving nontermination failed: SMT Solver returned 'unknown'. [2022-11-25 18:29:13,162 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce27eed8-b0f2-45df-849d-b78c98118d93/bin/uautomizer-ZsLfNo2U6R/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Forceful destruction successful, exit code 0 [2022-11-25 18:29:13,162 INFO L210 LassoAnalysis]: Preferences: [2022-11-25 18:29:13,163 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-11-25 18:29:13,163 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-11-25 18:29:13,163 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-11-25 18:29:13,163 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2022-11-25 18:29:13,163 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-25 18:29:13,163 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-11-25 18:29:13,163 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-11-25 18:29:13,163 INFO L133 ssoRankerPreferences]: Filename of dumped script: McCarthy91-1.c_Iteration2_Loop [2022-11-25 18:29:13,163 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-11-25 18:29:13,163 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-11-25 18:29:13,165 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 18:29:13,169 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 18:29:13,183 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 18:29:13,240 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-11-25 18:29:13,241 INFO L490 LassoAnalysis]: Using template 'affine'. [2022-11-25 18:29:13,241 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-25 18:29:13,241 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce27eed8-b0f2-45df-849d-b78c98118d93/bin/uautomizer-ZsLfNo2U6R/z3 [2022-11-25 18:29:13,243 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce27eed8-b0f2-45df-849d-b78c98118d93/bin/uautomizer-ZsLfNo2U6R/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-25 18:29:13,252 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce27eed8-b0f2-45df-849d-b78c98118d93/bin/uautomizer-ZsLfNo2U6R/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Waiting until timeout for monitored process [2022-11-25 18:29:13,252 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 18:29:13,267 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-25 18:29:13,267 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-11-25 18:29:13,267 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-25 18:29:13,267 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-25 18:29:13,268 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-25 18:29:13,268 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-11-25 18:29:13,269 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-11-25 18:29:13,279 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-11-25 18:29:13,283 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce27eed8-b0f2-45df-849d-b78c98118d93/bin/uautomizer-ZsLfNo2U6R/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Forceful destruction successful, exit code 0 [2022-11-25 18:29:13,284 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-25 18:29:13,284 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce27eed8-b0f2-45df-849d-b78c98118d93/bin/uautomizer-ZsLfNo2U6R/z3 [2022-11-25 18:29:13,285 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce27eed8-b0f2-45df-849d-b78c98118d93/bin/uautomizer-ZsLfNo2U6R/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-25 18:29:13,295 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce27eed8-b0f2-45df-849d-b78c98118d93/bin/uautomizer-ZsLfNo2U6R/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Waiting until timeout for monitored process [2022-11-25 18:29:13,296 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 18:29:13,311 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-25 18:29:13,311 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-11-25 18:29:13,311 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-25 18:29:13,312 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-25 18:29:13,312 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-25 18:29:13,316 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-11-25 18:29:13,316 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-11-25 18:29:13,335 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2022-11-25 18:29:13,340 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2022-11-25 18:29:13,340 INFO L444 ModelExtractionUtils]: 2 out of 5 variables were initially zero. Simplification set additionally 0 variables to zero. [2022-11-25 18:29:13,341 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-25 18:29:13,341 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce27eed8-b0f2-45df-849d-b78c98118d93/bin/uautomizer-ZsLfNo2U6R/z3 [2022-11-25 18:29:13,347 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce27eed8-b0f2-45df-849d-b78c98118d93/bin/uautomizer-ZsLfNo2U6R/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-25 18:29:13,352 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2022-11-25 18:29:13,352 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2022-11-25 18:29:13,352 INFO L513 LassoAnalysis]: Proved termination. [2022-11-25 18:29:13,352 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(f91_#t~ret4) = -2*f91_#t~ret4 + 201 Supporting invariants [] [2022-11-25 18:29:13,363 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce27eed8-b0f2-45df-849d-b78c98118d93/bin/uautomizer-ZsLfNo2U6R/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Forceful destruction successful, exit code 0 [2022-11-25 18:29:13,365 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2022-11-25 18:29:13,384 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce27eed8-b0f2-45df-849d-b78c98118d93/bin/uautomizer-ZsLfNo2U6R/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (14)] Waiting until timeout for monitored process [2022-11-25 18:29:13,400 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 18:29:13,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 18:29:13,458 INFO L263 TraceCheckSpWp]: Trace formula consists of 101 conjuncts, 6 conjunts are in the unsatisfiable core [2022-11-25 18:29:13,460 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 18:29:13,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 18:29:13,607 INFO L263 TraceCheckSpWp]: Trace formula consists of 77 conjuncts, 13 conjunts are in the unsatisfiable core [2022-11-25 18:29:13,609 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 18:29:13,811 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 18:29:13,812 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.2 stem predicates 7 loop predicates [2022-11-25 18:29:13,813 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 17 states and 21 transitions. cyclomatic complexity: 6 Second operand has 9 states, 7 states have (on average 1.7142857142857142) internal successors, (12), 6 states have internal predecessors, (12), 3 states have call successors, (4), 4 states have call predecessors, (4), 2 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) [2022-11-25 18:29:14,122 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 17 states and 21 transitions. cyclomatic complexity: 6. Second operand has 9 states, 7 states have (on average 1.7142857142857142) internal successors, (12), 6 states have internal predecessors, (12), 3 states have call successors, (4), 4 states have call predecessors, (4), 2 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) Result 51 states and 73 transitions. Complement of second has 32 states. [2022-11-25 18:29:14,123 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 8 states 2 stem states 5 non-accepting loop states 1 accepting loop states [2022-11-25 18:29:14,125 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9 states, 7 states have (on average 1.7142857142857142) internal successors, (12), 6 states have internal predecessors, (12), 3 states have call successors, (4), 4 states have call predecessors, (4), 2 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) [2022-11-25 18:29:14,126 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 17 transitions. [2022-11-25 18:29:14,127 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 8 states and 17 transitions. Stem has 10 letters. Loop has 8 letters. [2022-11-25 18:29:14,127 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-11-25 18:29:14,127 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 8 states and 17 transitions. Stem has 18 letters. Loop has 8 letters. [2022-11-25 18:29:14,128 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-11-25 18:29:14,128 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 8 states and 17 transitions. Stem has 10 letters. Loop has 16 letters. [2022-11-25 18:29:14,129 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-11-25 18:29:14,129 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 51 states and 73 transitions. [2022-11-25 18:29:14,134 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 7 [2022-11-25 18:29:14,148 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 51 states to 42 states and 62 transitions. [2022-11-25 18:29:14,149 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 26 [2022-11-25 18:29:14,150 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 27 [2022-11-25 18:29:14,150 INFO L73 IsDeterministic]: Start isDeterministic. Operand 42 states and 62 transitions. [2022-11-25 18:29:14,151 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2022-11-25 18:29:14,151 INFO L218 hiAutomatonCegarLoop]: Abstraction has 42 states and 62 transitions. [2022-11-25 18:29:14,158 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 42 states and 62 transitions. [2022-11-25 18:29:14,163 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 42 to 36. [2022-11-25 18:29:14,166 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 36 states, 22 states have (on average 1.1818181818181819) internal successors, (26), 23 states have internal predecessors, (26), 10 states have call successors, (13), 7 states have call predecessors, (13), 4 states have return successors, (12), 5 states have call predecessors, (12), 7 states have call successors, (12) [2022-11-25 18:29:14,168 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36 states to 36 states and 51 transitions. [2022-11-25 18:29:14,170 INFO L240 hiAutomatonCegarLoop]: Abstraction has 36 states and 51 transitions. [2022-11-25 18:29:14,170 INFO L428 stractBuchiCegarLoop]: Abstraction has 36 states and 51 transitions. [2022-11-25 18:29:14,171 INFO L335 stractBuchiCegarLoop]: ======== Iteration 3 ============ [2022-11-25 18:29:14,171 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 36 states and 51 transitions. [2022-11-25 18:29:14,172 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 7 [2022-11-25 18:29:14,176 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-11-25 18:29:14,176 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-11-25 18:29:14,177 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [3, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 18:29:14,178 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1] [2022-11-25 18:29:14,179 INFO L748 eck$LassoCheckResult]: Stem: 287#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int(48, 1, 0, 1);call write~init~int(0, 1, 1, 1);call #Ultimate.allocInit(15, 2);call #Ultimate.allocInit(12, 3); 288#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet6#1, main_#t~ret7#1, main_~x~0#1, main_~result~0#1;main_~x~0#1 := main_#t~nondet6#1;havoc main_#t~nondet6#1; 297#L28 call main_#t~ret7#1 := f91(main_~x~0#1);< 304#f91ENTRY ~x := #in~x; 321#L18 assume !(~x > 100); 298#L21 call #t~ret4 := f91(11 + ~x);< 308#f91ENTRY ~x := #in~x; 310#L18 assume ~x > 100;#res := ~x - 10; 312#f91FINAL assume true; 313#f91EXIT >#27#return; 291#L21-1 call #t~ret5 := f91(#t~ret4);< 303#f91ENTRY ~x := #in~x; 322#L18 assume !(~x > 100); 306#L21 [2022-11-25 18:29:14,179 INFO L750 eck$LassoCheckResult]: Loop: 306#L21 call #t~ret4 := f91(11 + ~x);< 305#f91ENTRY ~x := #in~x; 307#L18 assume !(~x > 100); 306#L21 [2022-11-25 18:29:14,180 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 18:29:14,199 INFO L85 PathProgramCache]: Analyzing trace with hash -25705320, now seen corresponding path program 2 times [2022-11-25 18:29:14,206 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 18:29:14,206 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce27eed8-b0f2-45df-849d-b78c98118d93/bin/uautomizer-ZsLfNo2U6R/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (14)] Forceful destruction successful, exit code 0 [2022-11-25 18:29:14,206 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [424623982] [2022-11-25 18:29:14,206 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 18:29:14,207 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 18:29:14,215 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce27eed8-b0f2-45df-849d-b78c98118d93/bin/uautomizer-ZsLfNo2U6R/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Forceful destruction successful, exit code 0 [2022-11-25 18:29:14,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-25 18:29:14,226 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-25 18:29:14,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-25 18:29:14,249 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-25 18:29:14,255 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 18:29:14,256 INFO L85 PathProgramCache]: Analyzing trace with hash 55261, now seen corresponding path program 2 times [2022-11-25 18:29:14,256 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 18:29:14,256 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [201430200] [2022-11-25 18:29:14,257 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 18:29:14,257 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 18:29:14,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-25 18:29:14,263 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-25 18:29:14,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-25 18:29:14,269 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-25 18:29:14,270 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 18:29:14,271 INFO L85 PathProgramCache]: Analyzing trace with hash -1282983962, now seen corresponding path program 3 times [2022-11-25 18:29:14,273 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 18:29:14,275 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1937522967] [2022-11-25 18:29:14,275 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 18:29:14,276 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 18:29:14,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 18:29:14,488 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2022-11-25 18:29:14,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 18:29:14,519 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-11-25 18:29:14,519 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 18:29:14,520 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1937522967] [2022-11-25 18:29:14,520 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1937522967] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 18:29:14,521 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 18:29:14,521 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-25 18:29:14,521 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1483361926] [2022-11-25 18:29:14,522 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 18:29:14,578 INFO L210 LassoAnalysis]: Preferences: [2022-11-25 18:29:14,579 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-11-25 18:29:14,579 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-11-25 18:29:14,579 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-11-25 18:29:14,579 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2022-11-25 18:29:14,579 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-25 18:29:14,580 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-11-25 18:29:14,580 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-11-25 18:29:14,580 INFO L133 ssoRankerPreferences]: Filename of dumped script: McCarthy91-1.c_Iteration3_Loop [2022-11-25 18:29:14,580 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-11-25 18:29:14,580 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-11-25 18:29:14,581 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 18:29:14,585 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 18:29:14,594 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 18:29:14,597 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 18:29:14,634 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-11-25 18:29:14,634 INFO L404 LassoAnalysis]: Checking for nontermination... [2022-11-25 18:29:14,634 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-25 18:29:14,635 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce27eed8-b0f2-45df-849d-b78c98118d93/bin/uautomizer-ZsLfNo2U6R/z3 [2022-11-25 18:29:14,640 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce27eed8-b0f2-45df-849d-b78c98118d93/bin/uautomizer-ZsLfNo2U6R/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-25 18:29:14,650 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-11-25 18:29:14,650 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-11-25 18:29:14,663 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce27eed8-b0f2-45df-849d-b78c98118d93/bin/uautomizer-ZsLfNo2U6R/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (15)] Waiting until timeout for monitored process [2022-11-25 18:29:14,683 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2022-11-25 18:29:14,683 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {f91_#t~ret4=0} Honda state: {f91_#t~ret4=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2022-11-25 18:29:14,693 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce27eed8-b0f2-45df-849d-b78c98118d93/bin/uautomizer-ZsLfNo2U6R/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (15)] Forceful destruction successful, exit code 0 [2022-11-25 18:29:14,694 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-25 18:29:14,694 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce27eed8-b0f2-45df-849d-b78c98118d93/bin/uautomizer-ZsLfNo2U6R/z3 [2022-11-25 18:29:14,696 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce27eed8-b0f2-45df-849d-b78c98118d93/bin/uautomizer-ZsLfNo2U6R/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-25 18:29:14,706 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-11-25 18:29:14,706 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-11-25 18:29:14,722 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce27eed8-b0f2-45df-849d-b78c98118d93/bin/uautomizer-ZsLfNo2U6R/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (16)] Waiting until timeout for monitored process [2022-11-25 18:29:14,770 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce27eed8-b0f2-45df-849d-b78c98118d93/bin/uautomizer-ZsLfNo2U6R/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (16)] Forceful destruction successful, exit code 0 [2022-11-25 18:29:14,770 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-25 18:29:14,771 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce27eed8-b0f2-45df-849d-b78c98118d93/bin/uautomizer-ZsLfNo2U6R/z3 [2022-11-25 18:29:14,772 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce27eed8-b0f2-45df-849d-b78c98118d93/bin/uautomizer-ZsLfNo2U6R/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-25 18:29:14,777 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2022-11-25 18:29:14,777 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-11-25 18:29:14,792 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce27eed8-b0f2-45df-849d-b78c98118d93/bin/uautomizer-ZsLfNo2U6R/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (17)] Waiting until timeout for monitored process [2022-11-25 18:29:26,834 INFO L442 LassoAnalysis]: Proving nontermination failed: SMT Solver returned 'unknown'. [2022-11-25 18:29:26,840 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce27eed8-b0f2-45df-849d-b78c98118d93/bin/uautomizer-ZsLfNo2U6R/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (17)] Forceful destruction successful, exit code 0 [2022-11-25 18:29:26,841 INFO L210 LassoAnalysis]: Preferences: [2022-11-25 18:29:26,841 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-11-25 18:29:26,841 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-11-25 18:29:26,841 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-11-25 18:29:26,841 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2022-11-25 18:29:26,841 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-25 18:29:26,841 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-11-25 18:29:26,841 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-11-25 18:29:26,842 INFO L133 ssoRankerPreferences]: Filename of dumped script: McCarthy91-1.c_Iteration3_Loop [2022-11-25 18:29:26,842 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-11-25 18:29:26,842 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-11-25 18:29:26,843 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 18:29:26,850 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 18:29:26,862 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 18:29:26,866 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 18:29:26,922 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-11-25 18:29:26,922 INFO L490 LassoAnalysis]: Using template 'affine'. [2022-11-25 18:29:26,923 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-25 18:29:26,923 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce27eed8-b0f2-45df-849d-b78c98118d93/bin/uautomizer-ZsLfNo2U6R/z3 [2022-11-25 18:29:26,924 INFO L229 MonitoredProcess]: Starting monitored process 18 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce27eed8-b0f2-45df-849d-b78c98118d93/bin/uautomizer-ZsLfNo2U6R/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-25 18:29:26,941 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 18:29:26,955 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce27eed8-b0f2-45df-849d-b78c98118d93/bin/uautomizer-ZsLfNo2U6R/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (18)] Waiting until timeout for monitored process [2022-11-25 18:29:26,958 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-25 18:29:26,958 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-11-25 18:29:26,958 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-25 18:29:26,958 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-25 18:29:26,958 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-25 18:29:26,962 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-11-25 18:29:26,962 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-11-25 18:29:26,975 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-11-25 18:29:26,983 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce27eed8-b0f2-45df-849d-b78c98118d93/bin/uautomizer-ZsLfNo2U6R/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (18)] Forceful destruction successful, exit code 0 [2022-11-25 18:29:26,983 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-25 18:29:26,983 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce27eed8-b0f2-45df-849d-b78c98118d93/bin/uautomizer-ZsLfNo2U6R/z3 [2022-11-25 18:29:26,987 INFO L229 MonitoredProcess]: Starting monitored process 19 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce27eed8-b0f2-45df-849d-b78c98118d93/bin/uautomizer-ZsLfNo2U6R/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-25 18:29:26,990 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce27eed8-b0f2-45df-849d-b78c98118d93/bin/uautomizer-ZsLfNo2U6R/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (19)] Waiting until timeout for monitored process [2022-11-25 18:29:26,991 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 18:29:27,006 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-25 18:29:27,006 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-11-25 18:29:27,007 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-25 18:29:27,007 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-25 18:29:27,007 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-25 18:29:27,009 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-11-25 18:29:27,009 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-11-25 18:29:27,019 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2022-11-25 18:29:27,024 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2022-11-25 18:29:27,024 INFO L444 ModelExtractionUtils]: 1 out of 4 variables were initially zero. Simplification set additionally 0 variables to zero. [2022-11-25 18:29:27,024 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-25 18:29:27,025 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce27eed8-b0f2-45df-849d-b78c98118d93/bin/uautomizer-ZsLfNo2U6R/z3 [2022-11-25 18:29:27,026 INFO L229 MonitoredProcess]: Starting monitored process 20 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce27eed8-b0f2-45df-849d-b78c98118d93/bin/uautomizer-ZsLfNo2U6R/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-25 18:29:27,037 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2022-11-25 18:29:27,037 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2022-11-25 18:29:27,037 INFO L513 LassoAnalysis]: Proved termination. [2022-11-25 18:29:27,037 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(f91_~x) = -2*f91_~x + 189 Supporting invariants [] [2022-11-25 18:29:27,048 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce27eed8-b0f2-45df-849d-b78c98118d93/bin/uautomizer-ZsLfNo2U6R/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (20)] Waiting until timeout for monitored process [2022-11-25 18:29:27,048 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce27eed8-b0f2-45df-849d-b78c98118d93/bin/uautomizer-ZsLfNo2U6R/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (19)] Forceful destruction successful, exit code 0 [2022-11-25 18:29:27,049 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2022-11-25 18:29:27,067 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 18:29:27,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 18:29:27,115 INFO L263 TraceCheckSpWp]: Trace formula consists of 136 conjuncts, 8 conjunts are in the unsatisfiable core [2022-11-25 18:29:27,121 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 18:29:27,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 18:29:27,227 INFO L263 TraceCheckSpWp]: Trace formula consists of 37 conjuncts, 7 conjunts are in the unsatisfiable core [2022-11-25 18:29:27,227 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 18:29:27,266 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 18:29:27,266 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.2 stem predicates 3 loop predicates [2022-11-25 18:29:27,267 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 36 states and 51 transitions. cyclomatic complexity: 19 Second operand has 5 states, 4 states have (on average 2.5) internal successors, (10), 4 states have internal predecessors, (10), 2 states have call successors, (4), 3 states have call predecessors, (4), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-25 18:29:27,363 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 36 states and 51 transitions. cyclomatic complexity: 19. Second operand has 5 states, 4 states have (on average 2.5) internal successors, (10), 4 states have internal predecessors, (10), 2 states have call successors, (4), 3 states have call predecessors, (4), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Result 43 states and 59 transitions. Complement of second has 13 states. [2022-11-25 18:29:27,363 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 6 states 2 stem states 3 non-accepting loop states 1 accepting loop states [2022-11-25 18:29:27,364 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5 states, 4 states have (on average 2.5) internal successors, (10), 4 states have internal predecessors, (10), 2 states have call successors, (4), 3 states have call predecessors, (4), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-25 18:29:27,365 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 11 transitions. [2022-11-25 18:29:27,365 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states and 11 transitions. Stem has 13 letters. Loop has 3 letters. [2022-11-25 18:29:27,365 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-11-25 18:29:27,366 INFO L681 stractBuchiCegarLoop]: Bad chosen interpolant automaton: word not accepted [2022-11-25 18:29:27,381 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 18:29:27,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 18:29:27,417 INFO L263 TraceCheckSpWp]: Trace formula consists of 136 conjuncts, 8 conjunts are in the unsatisfiable core [2022-11-25 18:29:27,418 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 18:29:27,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 18:29:27,526 INFO L263 TraceCheckSpWp]: Trace formula consists of 37 conjuncts, 7 conjunts are in the unsatisfiable core [2022-11-25 18:29:27,527 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 18:29:27,564 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 18:29:27,564 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and with honda bouncer for loop.2 stem predicates 3 loop predicates [2022-11-25 18:29:27,565 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 36 states and 51 transitions. cyclomatic complexity: 19 Second operand has 5 states, 4 states have (on average 2.5) internal successors, (10), 4 states have internal predecessors, (10), 2 states have call successors, (4), 3 states have call predecessors, (4), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-25 18:29:27,653 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 36 states and 51 transitions. cyclomatic complexity: 19. Second operand has 5 states, 4 states have (on average 2.5) internal successors, (10), 4 states have internal predecessors, (10), 2 states have call successors, (4), 3 states have call predecessors, (4), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Result 43 states and 59 transitions. Complement of second has 13 states. [2022-11-25 18:29:27,654 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 6 states 2 stem states 3 non-accepting loop states 1 accepting loop states [2022-11-25 18:29:27,654 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5 states, 4 states have (on average 2.5) internal successors, (10), 4 states have internal predecessors, (10), 2 states have call successors, (4), 3 states have call predecessors, (4), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-25 18:29:27,655 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 11 transitions. [2022-11-25 18:29:27,655 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states and 11 transitions. Stem has 13 letters. Loop has 3 letters. [2022-11-25 18:29:27,656 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-11-25 18:29:27,656 INFO L681 stractBuchiCegarLoop]: Bad chosen interpolant automaton: word not accepted [2022-11-25 18:29:27,670 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 18:29:27,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 18:29:27,706 INFO L263 TraceCheckSpWp]: Trace formula consists of 136 conjuncts, 8 conjunts are in the unsatisfiable core [2022-11-25 18:29:27,707 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 18:29:27,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 18:29:27,814 INFO L263 TraceCheckSpWp]: Trace formula consists of 37 conjuncts, 7 conjunts are in the unsatisfiable core [2022-11-25 18:29:27,815 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 18:29:27,860 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 18:29:27,861 INFO L141 lantAutomatonBouncer]: Defining Buchi interpolant automaton with scrooge nondeterminism in stemwith honda bouncer for stem and without honda bouncer for loop.2 stem predicates 3 loop predicates [2022-11-25 18:29:27,861 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 36 states and 51 transitions. cyclomatic complexity: 19 Second operand has 5 states, 4 states have (on average 2.5) internal successors, (10), 4 states have internal predecessors, (10), 2 states have call successors, (4), 3 states have call predecessors, (4), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-25 18:29:27,974 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 36 states and 51 transitions. cyclomatic complexity: 19. Second operand has 5 states, 4 states have (on average 2.5) internal successors, (10), 4 states have internal predecessors, (10), 2 states have call successors, (4), 3 states have call predecessors, (4), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Result 71 states and 100 transitions. Complement of second has 16 states. [2022-11-25 18:29:27,976 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 6 states 2 stem states 3 non-accepting loop states 1 accepting loop states [2022-11-25 18:29:27,979 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5 states, 4 states have (on average 2.5) internal successors, (10), 4 states have internal predecessors, (10), 2 states have call successors, (4), 3 states have call predecessors, (4), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-25 18:29:27,980 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 19 transitions. [2022-11-25 18:29:27,981 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states and 19 transitions. Stem has 13 letters. Loop has 3 letters. [2022-11-25 18:29:27,981 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-11-25 18:29:27,982 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states and 19 transitions. Stem has 16 letters. Loop has 3 letters. [2022-11-25 18:29:27,982 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-11-25 18:29:27,984 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states and 19 transitions. Stem has 13 letters. Loop has 6 letters. [2022-11-25 18:29:27,985 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-11-25 18:29:27,986 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 71 states and 100 transitions. [2022-11-25 18:29:27,989 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 9 [2022-11-25 18:29:27,997 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 71 states to 48 states and 74 transitions. [2022-11-25 18:29:27,998 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 26 [2022-11-25 18:29:27,999 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 28 [2022-11-25 18:29:28,000 INFO L73 IsDeterministic]: Start isDeterministic. Operand 48 states and 74 transitions. [2022-11-25 18:29:28,000 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2022-11-25 18:29:28,000 INFO L218 hiAutomatonCegarLoop]: Abstraction has 48 states and 74 transitions. [2022-11-25 18:29:28,001 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 48 states and 74 transitions. [2022-11-25 18:29:28,008 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 48 to 42. [2022-11-25 18:29:28,011 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 42 states, 26 states have (on average 1.0384615384615385) internal successors, (27), 26 states have internal predecessors, (27), 11 states have call successors, (18), 9 states have call predecessors, (18), 5 states have return successors, (15), 6 states have call predecessors, (15), 8 states have call successors, (15) [2022-11-25 18:29:28,012 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42 states to 42 states and 60 transitions. [2022-11-25 18:29:28,012 INFO L240 hiAutomatonCegarLoop]: Abstraction has 42 states and 60 transitions. [2022-11-25 18:29:28,013 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 18:29:28,016 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-11-25 18:29:28,016 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2022-11-25 18:29:28,018 INFO L87 Difference]: Start difference. First operand 42 states and 60 transitions. Second operand has 8 states, 6 states have (on average 1.6666666666666667) internal successors, (10), 5 states have internal predecessors, (10), 3 states have call successors, (4), 3 states have call predecessors, (4), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-25 18:29:28,169 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce27eed8-b0f2-45df-849d-b78c98118d93/bin/uautomizer-ZsLfNo2U6R/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (20)] Forceful destruction successful, exit code 0 [2022-11-25 18:29:28,206 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 18:29:28,206 INFO L93 Difference]: Finished difference Result 63 states and 82 transitions. [2022-11-25 18:29:28,207 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 63 states and 82 transitions. [2022-11-25 18:29:28,219 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 11 [2022-11-25 18:29:28,224 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 63 states to 58 states and 75 transitions. [2022-11-25 18:29:28,224 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 42 [2022-11-25 18:29:28,225 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 42 [2022-11-25 18:29:28,225 INFO L73 IsDeterministic]: Start isDeterministic. Operand 58 states and 75 transitions. [2022-11-25 18:29:28,225 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2022-11-25 18:29:28,225 INFO L218 hiAutomatonCegarLoop]: Abstraction has 58 states and 75 transitions. [2022-11-25 18:29:28,227 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 58 states and 75 transitions. [2022-11-25 18:29:28,240 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 58 to 57. [2022-11-25 18:29:28,240 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 57 states, 35 states have (on average 1.0571428571428572) internal successors, (37), 37 states have internal predecessors, (37), 13 states have call successors, (18), 11 states have call predecessors, (18), 9 states have return successors, (19), 8 states have call predecessors, (19), 11 states have call successors, (19) [2022-11-25 18:29:28,242 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 57 states to 57 states and 74 transitions. [2022-11-25 18:29:28,243 INFO L240 hiAutomatonCegarLoop]: Abstraction has 57 states and 74 transitions. [2022-11-25 18:29:28,243 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-11-25 18:29:28,246 INFO L428 stractBuchiCegarLoop]: Abstraction has 57 states and 74 transitions. [2022-11-25 18:29:28,246 INFO L335 stractBuchiCegarLoop]: ======== Iteration 4 ============ [2022-11-25 18:29:28,246 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 57 states and 74 transitions. [2022-11-25 18:29:28,250 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 11 [2022-11-25 18:29:28,253 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-11-25 18:29:28,254 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-11-25 18:29:28,255 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [4, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1] [2022-11-25 18:29:28,257 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [4, 3, 2, 2, 2, 2, 2, 1, 1] [2022-11-25 18:29:28,258 INFO L748 eck$LassoCheckResult]: Stem: 830#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int(48, 1, 0, 1);call write~init~int(0, 1, 1, 1);call #Ultimate.allocInit(15, 2);call #Ultimate.allocInit(12, 3); 831#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet6#1, main_#t~ret7#1, main_~x~0#1, main_~result~0#1;main_~x~0#1 := main_#t~nondet6#1;havoc main_#t~nondet6#1; 846#L28 call main_#t~ret7#1 := f91(main_~x~0#1);< 847#f91ENTRY ~x := #in~x; 872#L18 assume !(~x > 100); 864#L21 call #t~ret4 := f91(11 + ~x);< 868#f91ENTRY ~x := #in~x; 870#L18 assume !(~x > 100); 865#L21 call #t~ret4 := f91(11 + ~x);< 867#f91ENTRY ~x := #in~x; 871#L18 assume ~x > 100;#res := ~x - 10; 869#f91FINAL assume true; 866#f91EXIT >#27#return; 843#L21-1 call #t~ret5 := f91(#t~ret4);< 845#f91ENTRY ~x := #in~x; 884#L18 assume ~x > 100;#res := ~x - 10; 883#f91FINAL assume true; 881#f91EXIT >#29#return; 835#L21-2 #res := #t~ret5;havoc #t~ret4;havoc #t~ret5; 879#f91FINAL assume true; 878#f91EXIT >#27#return; 833#L21-1 call #t~ret5 := f91(#t~ret4);< 877#f91ENTRY [2022-11-25 18:29:28,258 INFO L750 eck$LassoCheckResult]: Loop: 877#f91ENTRY ~x := #in~x; 873#L18 assume !(~x > 100); 841#L21 call #t~ret4 := f91(11 + ~x);< 851#f91ENTRY ~x := #in~x; 852#L18 assume !(~x > 100); 840#L21 call #t~ret4 := f91(11 + ~x);< 860#f91ENTRY ~x := #in~x; 859#L18 assume ~x > 100;#res := ~x - 10; 856#f91FINAL assume true; 857#f91EXIT >#27#return; 839#L21-1 call #t~ret5 := f91(#t~ret4);< 842#f91ENTRY ~x := #in~x; 875#L18 assume ~x > 100;#res := ~x - 10; 876#f91FINAL assume true; 880#f91EXIT >#29#return; 835#L21-2 #res := #t~ret5;havoc #t~ret4;havoc #t~ret5; 879#f91FINAL assume true; 878#f91EXIT >#27#return; 834#L21-1 call #t~ret5 := f91(#t~ret4);< 877#f91ENTRY [2022-11-25 18:29:28,258 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 18:29:28,259 INFO L85 PathProgramCache]: Analyzing trace with hash -1708035509, now seen corresponding path program 1 times [2022-11-25 18:29:28,259 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 18:29:28,259 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1239623700] [2022-11-25 18:29:28,260 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 18:29:28,260 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 18:29:28,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-25 18:29:28,283 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-25 18:29:28,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-25 18:29:28,302 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-25 18:29:28,306 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 18:29:28,306 INFO L85 PathProgramCache]: Analyzing trace with hash 1732488063, now seen corresponding path program 1 times [2022-11-25 18:29:28,307 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 18:29:28,308 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [374817683] [2022-11-25 18:29:28,308 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 18:29:28,308 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 18:29:28,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-25 18:29:28,332 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-25 18:29:28,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-25 18:29:28,351 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-25 18:29:28,352 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 18:29:28,352 INFO L85 PathProgramCache]: Analyzing trace with hash -1682902795, now seen corresponding path program 2 times [2022-11-25 18:29:28,352 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 18:29:28,353 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1522720467] [2022-11-25 18:29:28,353 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 18:29:28,353 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 18:29:28,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 18:29:28,451 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2022-11-25 18:29:28,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 18:29:28,492 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-25 18:29:28,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 18:29:28,496 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-11-25 18:29:28,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 18:29:28,511 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2022-11-25 18:29:28,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 18:29:28,628 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-25 18:29:28,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 18:29:28,642 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-11-25 18:29:28,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 18:29:28,660 INFO L134 CoverageAnalysis]: Checked inductivity of 99 backedges. 31 proven. 23 refuted. 0 times theorem prover too weak. 45 trivial. 0 not checked. [2022-11-25 18:29:28,665 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 18:29:28,665 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1522720467] [2022-11-25 18:29:28,668 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1522720467] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-25 18:29:28,670 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [607619007] [2022-11-25 18:29:28,670 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-11-25 18:29:28,670 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 18:29:28,670 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce27eed8-b0f2-45df-849d-b78c98118d93/bin/uautomizer-ZsLfNo2U6R/z3 [2022-11-25 18:29:28,671 INFO L229 MonitoredProcess]: Starting monitored process 21 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce27eed8-b0f2-45df-849d-b78c98118d93/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-25 18:29:28,674 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce27eed8-b0f2-45df-849d-b78c98118d93/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Waiting until timeout for monitored process [2022-11-25 18:29:28,736 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-11-25 18:29:28,737 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-25 18:29:28,738 INFO L263 TraceCheckSpWp]: Trace formula consists of 116 conjuncts, 10 conjunts are in the unsatisfiable core [2022-11-25 18:29:28,741 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 18:29:28,812 INFO L134 CoverageAnalysis]: Checked inductivity of 99 backedges. 31 proven. 23 refuted. 0 times theorem prover too weak. 45 trivial. 0 not checked. [2022-11-25 18:29:28,812 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-25 18:29:29,133 INFO L134 CoverageAnalysis]: Checked inductivity of 99 backedges. 31 proven. 23 refuted. 0 times theorem prover too weak. 45 trivial. 0 not checked. [2022-11-25 18:29:29,133 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [607619007] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-25 18:29:29,133 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-25 18:29:29,134 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 9, 9] total 17 [2022-11-25 18:29:29,134 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [327410977] [2022-11-25 18:29:29,134 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-25 18:29:29,423 INFO L210 LassoAnalysis]: Preferences: [2022-11-25 18:29:29,423 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-11-25 18:29:29,423 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-11-25 18:29:29,423 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-11-25 18:29:29,423 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2022-11-25 18:29:29,423 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-25 18:29:29,423 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-11-25 18:29:29,424 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-11-25 18:29:29,424 INFO L133 ssoRankerPreferences]: Filename of dumped script: McCarthy91-1.c_Iteration4_Loop [2022-11-25 18:29:29,424 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-11-25 18:29:29,424 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-11-25 18:29:29,425 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 18:29:29,434 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 18:29:29,437 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 18:29:29,440 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 18:29:29,443 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 18:29:29,479 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-11-25 18:29:29,480 INFO L404 LassoAnalysis]: Checking for nontermination... [2022-11-25 18:29:29,480 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-25 18:29:29,480 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce27eed8-b0f2-45df-849d-b78c98118d93/bin/uautomizer-ZsLfNo2U6R/z3 [2022-11-25 18:29:29,482 INFO L229 MonitoredProcess]: Starting monitored process 22 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce27eed8-b0f2-45df-849d-b78c98118d93/bin/uautomizer-ZsLfNo2U6R/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-25 18:29:29,488 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-11-25 18:29:29,488 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-11-25 18:29:29,503 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce27eed8-b0f2-45df-849d-b78c98118d93/bin/uautomizer-ZsLfNo2U6R/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (22)] Waiting until timeout for monitored process [2022-11-25 18:29:29,523 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce27eed8-b0f2-45df-849d-b78c98118d93/bin/uautomizer-ZsLfNo2U6R/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (22)] Forceful destruction successful, exit code 0 [2022-11-25 18:29:29,523 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-25 18:29:29,524 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce27eed8-b0f2-45df-849d-b78c98118d93/bin/uautomizer-ZsLfNo2U6R/z3 [2022-11-25 18:29:29,525 INFO L229 MonitoredProcess]: Starting monitored process 23 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce27eed8-b0f2-45df-849d-b78c98118d93/bin/uautomizer-ZsLfNo2U6R/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-25 18:29:29,532 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2022-11-25 18:29:29,533 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-11-25 18:29:29,549 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce27eed8-b0f2-45df-849d-b78c98118d93/bin/uautomizer-ZsLfNo2U6R/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (23)] Waiting until timeout for monitored process [2022-11-25 18:29:29,777 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2022-11-25 18:29:29,781 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce27eed8-b0f2-45df-849d-b78c98118d93/bin/uautomizer-ZsLfNo2U6R/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (23)] Forceful destruction successful, exit code 0 [2022-11-25 18:29:29,781 INFO L210 LassoAnalysis]: Preferences: [2022-11-25 18:29:29,782 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-11-25 18:29:29,782 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-11-25 18:29:29,782 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-11-25 18:29:29,782 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2022-11-25 18:29:29,782 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-25 18:29:29,782 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-11-25 18:29:29,782 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-11-25 18:29:29,782 INFO L133 ssoRankerPreferences]: Filename of dumped script: McCarthy91-1.c_Iteration4_Loop [2022-11-25 18:29:29,782 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-11-25 18:29:29,782 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-11-25 18:29:29,783 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-25 18:29:29,799 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 18:29:29,803 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 18:29:29,806 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 18:29:29,809 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 18:29:29,850 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-11-25 18:29:29,850 INFO L490 LassoAnalysis]: Using template 'affine'. [2022-11-25 18:29:29,851 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-25 18:29:29,851 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce27eed8-b0f2-45df-849d-b78c98118d93/bin/uautomizer-ZsLfNo2U6R/z3 [2022-11-25 18:29:29,852 INFO L229 MonitoredProcess]: Starting monitored process 24 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce27eed8-b0f2-45df-849d-b78c98118d93/bin/uautomizer-ZsLfNo2U6R/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-25 18:29:29,864 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 18:29:29,874 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce27eed8-b0f2-45df-849d-b78c98118d93/bin/uautomizer-ZsLfNo2U6R/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (24)] Waiting until timeout for monitored process [2022-11-25 18:29:29,879 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-25 18:29:29,879 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-11-25 18:29:29,880 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-25 18:29:29,880 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-25 18:29:29,880 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-25 18:29:29,884 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-11-25 18:29:29,884 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-11-25 18:29:29,899 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2022-11-25 18:29:29,905 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2022-11-25 18:29:29,905 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. [2022-11-25 18:29:29,905 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-25 18:29:29,906 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce27eed8-b0f2-45df-849d-b78c98118d93/bin/uautomizer-ZsLfNo2U6R/z3 [2022-11-25 18:29:29,907 INFO L229 MonitoredProcess]: Starting monitored process 25 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce27eed8-b0f2-45df-849d-b78c98118d93/bin/uautomizer-ZsLfNo2U6R/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-25 18:29:29,916 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2022-11-25 18:29:29,916 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2022-11-25 18:29:29,917 INFO L513 LassoAnalysis]: Proved termination. [2022-11-25 18:29:29,917 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(f91_#in~x) = -1*f91_#in~x + 90 Supporting invariants [] [2022-11-25 18:29:29,919 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce27eed8-b0f2-45df-849d-b78c98118d93/bin/uautomizer-ZsLfNo2U6R/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (25)] Waiting until timeout for monitored process [2022-11-25 18:29:29,921 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce27eed8-b0f2-45df-849d-b78c98118d93/bin/uautomizer-ZsLfNo2U6R/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (24)] Forceful destruction successful, exit code 0 [2022-11-25 18:29:29,922 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2022-11-25 18:29:29,937 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 18:29:29,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 18:29:29,990 INFO L263 TraceCheckSpWp]: Trace formula consists of 213 conjuncts, 12 conjunts are in the unsatisfiable core [2022-11-25 18:29:29,995 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 18:29:30,150 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce27eed8-b0f2-45df-849d-b78c98118d93/bin/uautomizer-ZsLfNo2U6R/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (25)] Forceful destruction successful, exit code 0 [2022-11-25 18:29:30,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 18:29:30,330 INFO L263 TraceCheckSpWp]: Trace formula consists of 157 conjuncts, 25 conjunts are in the unsatisfiable core [2022-11-25 18:29:30,341 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 18:29:30,617 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 4 proven. 8 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2022-11-25 18:29:30,618 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.2 stem predicates 10 loop predicates [2022-11-25 18:29:30,619 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 57 states and 74 transitions. cyclomatic complexity: 21 Second operand has 12 states, 9 states have (on average 1.8888888888888888) internal successors, (17), 7 states have internal predecessors, (17), 6 states have call successors, (9), 4 states have call predecessors, (9), 3 states have return successors, (6), 5 states have call predecessors, (6), 5 states have call successors, (6) [2022-11-25 18:29:31,198 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 57 states and 74 transitions. cyclomatic complexity: 21. Second operand has 12 states, 9 states have (on average 1.8888888888888888) internal successors, (17), 7 states have internal predecessors, (17), 6 states have call successors, (9), 4 states have call predecessors, (9), 3 states have return successors, (6), 5 states have call predecessors, (6), 5 states have call successors, (6) Result 125 states and 150 transitions. Complement of second has 47 states. [2022-11-25 18:29:31,200 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 14 states 2 stem states 11 non-accepting loop states 1 accepting loop states [2022-11-25 18:29:31,201 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12 states, 9 states have (on average 1.8888888888888888) internal successors, (17), 7 states have internal predecessors, (17), 6 states have call successors, (9), 4 states have call predecessors, (9), 3 states have return successors, (6), 5 states have call predecessors, (6), 5 states have call successors, (6) [2022-11-25 18:29:31,201 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 34 transitions. [2022-11-25 18:29:31,202 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 14 states and 34 transitions. Stem has 22 letters. Loop has 19 letters. [2022-11-25 18:29:31,202 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-11-25 18:29:31,202 INFO L681 stractBuchiCegarLoop]: Bad chosen interpolant automaton: word not accepted [2022-11-25 18:29:31,221 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 18:29:31,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 18:29:31,291 INFO L263 TraceCheckSpWp]: Trace formula consists of 213 conjuncts, 12 conjunts are in the unsatisfiable core [2022-11-25 18:29:31,292 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 18:29:31,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 18:29:31,542 INFO L263 TraceCheckSpWp]: Trace formula consists of 157 conjuncts, 20 conjunts are in the unsatisfiable core [2022-11-25 18:29:31,544 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 18:29:31,791 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 6 proven. 10 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-11-25 18:29:31,791 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and with honda bouncer for loop.2 stem predicates 9 loop predicates [2022-11-25 18:29:31,792 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 57 states and 74 transitions. cyclomatic complexity: 21 Second operand has 11 states, 9 states have (on average 2.2222222222222223) internal successors, (20), 8 states have internal predecessors, (20), 5 states have call successors, (9), 4 states have call predecessors, (9), 4 states have return successors, (6), 5 states have call predecessors, (6), 4 states have call successors, (6) [2022-11-25 18:29:32,207 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 57 states and 74 transitions. cyclomatic complexity: 21. Second operand has 11 states, 9 states have (on average 2.2222222222222223) internal successors, (20), 8 states have internal predecessors, (20), 5 states have call successors, (9), 4 states have call predecessors, (9), 4 states have return successors, (6), 5 states have call predecessors, (6), 4 states have call successors, (6) Result 125 states and 150 transitions. Complement of second has 37 states. [2022-11-25 18:29:32,209 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 13 states 2 stem states 10 non-accepting loop states 1 accepting loop states [2022-11-25 18:29:32,209 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11 states, 9 states have (on average 2.2222222222222223) internal successors, (20), 8 states have internal predecessors, (20), 5 states have call successors, (9), 4 states have call predecessors, (9), 4 states have return successors, (6), 5 states have call predecessors, (6), 4 states have call successors, (6) [2022-11-25 18:29:32,210 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 34 transitions. [2022-11-25 18:29:32,210 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 13 states and 34 transitions. Stem has 22 letters. Loop has 19 letters. [2022-11-25 18:29:32,211 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-11-25 18:29:32,211 INFO L681 stractBuchiCegarLoop]: Bad chosen interpolant automaton: word not accepted [2022-11-25 18:29:32,225 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 18:29:32,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 18:29:32,275 INFO L263 TraceCheckSpWp]: Trace formula consists of 213 conjuncts, 12 conjunts are in the unsatisfiable core [2022-11-25 18:29:32,277 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 18:29:32,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 18:29:32,514 INFO L263 TraceCheckSpWp]: Trace formula consists of 157 conjuncts, 20 conjunts are in the unsatisfiable core [2022-11-25 18:29:32,515 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 18:29:32,713 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 6 proven. 10 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-11-25 18:29:32,715 INFO L141 lantAutomatonBouncer]: Defining Buchi interpolant automaton with scrooge nondeterminism in stemwith honda bouncer for stem and without honda bouncer for loop.2 stem predicates 9 loop predicates [2022-11-25 18:29:32,715 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 57 states and 74 transitions. cyclomatic complexity: 21 Second operand has 11 states, 9 states have (on average 2.2222222222222223) internal successors, (20), 8 states have internal predecessors, (20), 5 states have call successors, (9), 4 states have call predecessors, (9), 4 states have return successors, (6), 5 states have call predecessors, (6), 4 states have call successors, (6) [2022-11-25 18:29:33,551 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 57 states and 74 transitions. cyclomatic complexity: 21. Second operand has 11 states, 9 states have (on average 2.2222222222222223) internal successors, (20), 8 states have internal predecessors, (20), 5 states have call successors, (9), 4 states have call predecessors, (9), 4 states have return successors, (6), 5 states have call predecessors, (6), 4 states have call successors, (6) Result 325 states and 417 transitions. Complement of second has 123 states. [2022-11-25 18:29:33,552 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 18 states 2 stem states 15 non-accepting loop states 1 accepting loop states [2022-11-25 18:29:33,553 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11 states, 9 states have (on average 2.2222222222222223) internal successors, (20), 8 states have internal predecessors, (20), 5 states have call successors, (9), 4 states have call predecessors, (9), 4 states have return successors, (6), 5 states have call predecessors, (6), 4 states have call successors, (6) [2022-11-25 18:29:33,553 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 49 transitions. [2022-11-25 18:29:33,554 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 18 states and 49 transitions. Stem has 22 letters. Loop has 19 letters. [2022-11-25 18:29:33,554 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-11-25 18:29:33,555 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 18 states and 49 transitions. Stem has 41 letters. Loop has 19 letters. [2022-11-25 18:29:33,556 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-11-25 18:29:33,556 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 18 states and 49 transitions. Stem has 22 letters. Loop has 38 letters. [2022-11-25 18:29:33,557 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-11-25 18:29:33,557 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 325 states and 417 transitions. [2022-11-25 18:29:33,564 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 25 [2022-11-25 18:29:33,569 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 325 states to 169 states and 230 transitions. [2022-11-25 18:29:33,569 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 81 [2022-11-25 18:29:33,569 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 90 [2022-11-25 18:29:33,570 INFO L73 IsDeterministic]: Start isDeterministic. Operand 169 states and 230 transitions. [2022-11-25 18:29:33,570 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2022-11-25 18:29:33,570 INFO L218 hiAutomatonCegarLoop]: Abstraction has 169 states and 230 transitions. [2022-11-25 18:29:33,571 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 169 states and 230 transitions. [2022-11-25 18:29:33,582 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 169 to 140. [2022-11-25 18:29:33,583 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 140 states, 86 states have (on average 1.0813953488372092) internal successors, (93), 88 states have internal predecessors, (93), 32 states have call successors, (42), 26 states have call predecessors, (42), 22 states have return successors, (43), 25 states have call predecessors, (43), 28 states have call successors, (43) [2022-11-25 18:29:33,585 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 140 states to 140 states and 178 transitions. [2022-11-25 18:29:33,585 INFO L240 hiAutomatonCegarLoop]: Abstraction has 140 states and 178 transitions. [2022-11-25 18:29:33,585 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 18:29:33,586 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-11-25 18:29:33,586 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=44, Invalid=228, Unknown=0, NotChecked=0, Total=272 [2022-11-25 18:29:33,586 INFO L87 Difference]: Start difference. First operand 140 states and 178 transitions. Second operand has 17 states, 13 states have (on average 1.8461538461538463) internal successors, (24), 10 states have internal predecessors, (24), 8 states have call successors, (11), 4 states have call predecessors, (11), 4 states have return successors, (10), 7 states have call predecessors, (10), 5 states have call successors, (10) [2022-11-25 18:29:33,891 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 18:29:33,891 INFO L93 Difference]: Finished difference Result 138 states and 163 transitions. [2022-11-25 18:29:33,892 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 138 states and 163 transitions. [2022-11-25 18:29:33,894 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2022-11-25 18:29:33,896 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 138 states to 101 states and 121 transitions. [2022-11-25 18:29:33,896 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 73 [2022-11-25 18:29:33,896 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 73 [2022-11-25 18:29:33,896 INFO L73 IsDeterministic]: Start isDeterministic. Operand 101 states and 121 transitions. [2022-11-25 18:29:33,897 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2022-11-25 18:29:33,897 INFO L218 hiAutomatonCegarLoop]: Abstraction has 101 states and 121 transitions. [2022-11-25 18:29:33,897 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 101 states and 121 transitions. [2022-11-25 18:29:33,904 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 101 to 97. [2022-11-25 18:29:33,904 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 97 states, 60 states have (on average 1.05) internal successors, (63), 61 states have internal predecessors, (63), 22 states have call successors, (29), 19 states have call predecessors, (29), 15 states have return successors, (25), 16 states have call predecessors, (25), 18 states have call successors, (25) [2022-11-25 18:29:33,905 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 97 states to 97 states and 117 transitions. [2022-11-25 18:29:33,906 INFO L240 hiAutomatonCegarLoop]: Abstraction has 97 states and 117 transitions. [2022-11-25 18:29:33,908 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-11-25 18:29:33,909 INFO L428 stractBuchiCegarLoop]: Abstraction has 97 states and 117 transitions. [2022-11-25 18:29:33,909 INFO L335 stractBuchiCegarLoop]: ======== Iteration 5 ============ [2022-11-25 18:29:33,909 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 97 states and 117 transitions. [2022-11-25 18:29:33,910 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2022-11-25 18:29:33,911 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-11-25 18:29:33,911 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-11-25 18:29:33,912 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [8, 5, 4, 4, 4, 4, 4, 1, 1, 1, 1, 1] [2022-11-25 18:29:33,914 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [2, 1, 1, 1, 1, 1, 1] [2022-11-25 18:29:33,914 INFO L748 eck$LassoCheckResult]: Stem: 2745#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int(48, 1, 0, 1);call write~init~int(0, 1, 1, 1);call #Ultimate.allocInit(15, 2);call #Ultimate.allocInit(12, 3); 2746#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet6#1, main_#t~ret7#1, main_~x~0#1, main_~result~0#1;main_~x~0#1 := main_#t~nondet6#1;havoc main_#t~nondet6#1; 2759#L28 call main_#t~ret7#1 := f91(main_~x~0#1);< 2760#f91ENTRY ~x := #in~x; 2780#L18 assume !(~x > 100); 2765#L21 call #t~ret4 := f91(11 + ~x);< 2764#f91ENTRY ~x := #in~x; 2767#L18 assume !(~x > 100); 2766#L21 call #t~ret4 := f91(11 + ~x);< 2809#f91ENTRY ~x := #in~x; 2812#L18 assume ~x > 100;#res := ~x - 10; 2811#f91FINAL assume true; 2810#f91EXIT >#27#return; 2805#L21-1 call #t~ret5 := f91(#t~ret4);< 2808#f91ENTRY ~x := #in~x; 2821#L18 assume ~x > 100;#res := ~x - 10; 2813#f91FINAL assume true; 2804#f91EXIT >#29#return; 2803#L21-2 #res := #t~ret5;havoc #t~ret4;havoc #t~ret5; 2801#f91FINAL assume true; 2800#f91EXIT >#27#return; 2795#L21-1 call #t~ret5 := f91(#t~ret4);< 2799#f91ENTRY ~x := #in~x; 2797#L18 assume !(~x > 100); 2755#L21 call #t~ret4 := f91(11 + ~x);< 2796#f91ENTRY ~x := #in~x; 2818#L18 assume ~x > 100;#res := ~x - 10; 2817#f91FINAL assume true; 2816#f91EXIT >#27#return; 2762#L21-1 call #t~ret5 := f91(#t~ret4);< 2761#f91ENTRY ~x := #in~x; 2763#L18 assume !(~x > 100); 2781#L21 call #t~ret4 := f91(11 + ~x);< 2782#f91ENTRY ~x := #in~x; 2839#L18 assume ~x > 100;#res := ~x - 10; 2838#f91FINAL assume true; 2834#f91EXIT >#27#return; 2771#L21-1 call #t~ret5 := f91(#t~ret4);< 2831#f91ENTRY [2022-11-25 18:29:33,915 INFO L750 eck$LassoCheckResult]: Loop: 2831#f91ENTRY ~x := #in~x; 2837#L18 assume !(~x > 100); 2835#L21 call #t~ret4 := f91(11 + ~x);< 2782#f91ENTRY ~x := #in~x; 2839#L18 assume ~x > 100;#res := ~x - 10; 2838#f91FINAL assume true; 2834#f91EXIT >#27#return; 2770#L21-1 call #t~ret5 := f91(#t~ret4);< 2831#f91ENTRY [2022-11-25 18:29:33,915 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 18:29:33,915 INFO L85 PathProgramCache]: Analyzing trace with hash 1117842761, now seen corresponding path program 3 times [2022-11-25 18:29:33,915 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 18:29:33,916 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1242306568] [2022-11-25 18:29:33,916 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 18:29:33,916 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 18:29:33,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-25 18:29:33,933 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-25 18:29:33,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-25 18:29:33,954 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-25 18:29:33,955 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 18:29:33,955 INFO L85 PathProgramCache]: Analyzing trace with hash -993632512, now seen corresponding path program 2 times [2022-11-25 18:29:33,955 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 18:29:33,958 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1001412017] [2022-11-25 18:29:33,958 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 18:29:33,958 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 18:29:33,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-25 18:29:33,962 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-25 18:29:33,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-25 18:29:33,970 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-25 18:29:33,971 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 18:29:33,971 INFO L85 PathProgramCache]: Analyzing trace with hash 1969849416, now seen corresponding path program 4 times [2022-11-25 18:29:33,971 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 18:29:33,972 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [985194908] [2022-11-25 18:29:33,972 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 18:29:33,972 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 18:29:33,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-25 18:29:33,997 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-25 18:29:34,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-25 18:29:34,026 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-25 18:29:34,129 INFO L210 LassoAnalysis]: Preferences: [2022-11-25 18:29:34,129 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-11-25 18:29:34,129 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-11-25 18:29:34,129 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-11-25 18:29:34,129 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2022-11-25 18:29:34,130 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-25 18:29:34,130 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-11-25 18:29:34,130 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-11-25 18:29:34,130 INFO L133 ssoRankerPreferences]: Filename of dumped script: McCarthy91-1.c_Iteration5_Loop [2022-11-25 18:29:34,130 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-11-25 18:29:34,130 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-11-25 18:29:34,131 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 18:29:34,133 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 18:29:34,135 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 18:29:34,138 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 18:29:34,147 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 18:29:34,197 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-11-25 18:29:34,197 INFO L404 LassoAnalysis]: Checking for nontermination... [2022-11-25 18:29:34,197 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-25 18:29:34,198 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce27eed8-b0f2-45df-849d-b78c98118d93/bin/uautomizer-ZsLfNo2U6R/z3 [2022-11-25 18:29:34,199 INFO L229 MonitoredProcess]: Starting monitored process 26 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce27eed8-b0f2-45df-849d-b78c98118d93/bin/uautomizer-ZsLfNo2U6R/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-25 18:29:34,210 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-11-25 18:29:34,210 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-11-25 18:29:34,223 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce27eed8-b0f2-45df-849d-b78c98118d93/bin/uautomizer-ZsLfNo2U6R/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (26)] Waiting until timeout for monitored process [2022-11-25 18:29:34,239 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2022-11-25 18:29:34,239 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {f91_#t~ret4=0} Honda state: {f91_#t~ret4=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2022-11-25 18:29:34,249 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce27eed8-b0f2-45df-849d-b78c98118d93/bin/uautomizer-ZsLfNo2U6R/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (26)] Forceful destruction successful, exit code 0 [2022-11-25 18:29:34,249 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-25 18:29:34,249 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce27eed8-b0f2-45df-849d-b78c98118d93/bin/uautomizer-ZsLfNo2U6R/z3 [2022-11-25 18:29:34,250 INFO L229 MonitoredProcess]: Starting monitored process 27 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce27eed8-b0f2-45df-849d-b78c98118d93/bin/uautomizer-ZsLfNo2U6R/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-25 18:29:34,256 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-11-25 18:29:34,256 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-11-25 18:29:34,269 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce27eed8-b0f2-45df-849d-b78c98118d93/bin/uautomizer-ZsLfNo2U6R/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (27)] Waiting until timeout for monitored process [2022-11-25 18:29:34,272 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2022-11-25 18:29:34,272 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {f91_#res=0} Honda state: {f91_#res=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2022-11-25 18:29:34,275 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce27eed8-b0f2-45df-849d-b78c98118d93/bin/uautomizer-ZsLfNo2U6R/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (27)] Forceful destruction successful, exit code 0 [2022-11-25 18:29:34,276 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-25 18:29:34,276 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce27eed8-b0f2-45df-849d-b78c98118d93/bin/uautomizer-ZsLfNo2U6R/z3 [2022-11-25 18:29:34,277 INFO L229 MonitoredProcess]: Starting monitored process 28 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce27eed8-b0f2-45df-849d-b78c98118d93/bin/uautomizer-ZsLfNo2U6R/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-25 18:29:34,278 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce27eed8-b0f2-45df-849d-b78c98118d93/bin/uautomizer-ZsLfNo2U6R/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (28)] Waiting until timeout for monitored process [2022-11-25 18:29:34,281 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-11-25 18:29:34,281 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-11-25 18:29:34,297 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2022-11-25 18:29:34,297 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {f91_~x=0} Honda state: {f91_~x=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2022-11-25 18:29:34,300 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce27eed8-b0f2-45df-849d-b78c98118d93/bin/uautomizer-ZsLfNo2U6R/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (28)] Forceful destruction successful, exit code 0 [2022-11-25 18:29:34,301 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-25 18:29:34,301 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce27eed8-b0f2-45df-849d-b78c98118d93/bin/uautomizer-ZsLfNo2U6R/z3 [2022-11-25 18:29:34,302 INFO L229 MonitoredProcess]: Starting monitored process 29 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce27eed8-b0f2-45df-849d-b78c98118d93/bin/uautomizer-ZsLfNo2U6R/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-25 18:29:34,305 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce27eed8-b0f2-45df-849d-b78c98118d93/bin/uautomizer-ZsLfNo2U6R/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (29)] Waiting until timeout for monitored process [2022-11-25 18:29:34,306 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-11-25 18:29:34,306 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-11-25 18:29:34,327 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce27eed8-b0f2-45df-849d-b78c98118d93/bin/uautomizer-ZsLfNo2U6R/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (29)] Forceful destruction successful, exit code 0 [2022-11-25 18:29:34,328 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-25 18:29:34,328 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce27eed8-b0f2-45df-849d-b78c98118d93/bin/uautomizer-ZsLfNo2U6R/z3 [2022-11-25 18:29:34,329 INFO L229 MonitoredProcess]: Starting monitored process 30 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce27eed8-b0f2-45df-849d-b78c98118d93/bin/uautomizer-ZsLfNo2U6R/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-25 18:29:34,330 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce27eed8-b0f2-45df-849d-b78c98118d93/bin/uautomizer-ZsLfNo2U6R/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (30)] Waiting until timeout for monitored process [2022-11-25 18:29:34,332 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2022-11-25 18:29:34,332 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-11-25 18:29:34,362 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2022-11-25 18:29:34,373 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce27eed8-b0f2-45df-849d-b78c98118d93/bin/uautomizer-ZsLfNo2U6R/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (30)] Forceful destruction successful, exit code 0 [2022-11-25 18:29:34,373 INFO L210 LassoAnalysis]: Preferences: [2022-11-25 18:29:34,373 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-11-25 18:29:34,373 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-11-25 18:29:34,373 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-11-25 18:29:34,373 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2022-11-25 18:29:34,373 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-25 18:29:34,373 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-11-25 18:29:34,374 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-11-25 18:29:34,374 INFO L133 ssoRankerPreferences]: Filename of dumped script: McCarthy91-1.c_Iteration5_Loop [2022-11-25 18:29:34,374 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-11-25 18:29:34,374 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-11-25 18:29:34,375 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 18:29:34,377 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 18:29:34,380 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 18:29:34,382 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 18:29:34,391 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 18:29:34,424 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-11-25 18:29:34,425 INFO L490 LassoAnalysis]: Using template 'affine'. [2022-11-25 18:29:34,425 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-25 18:29:34,425 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce27eed8-b0f2-45df-849d-b78c98118d93/bin/uautomizer-ZsLfNo2U6R/z3 [2022-11-25 18:29:34,426 INFO L229 MonitoredProcess]: Starting monitored process 31 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce27eed8-b0f2-45df-849d-b78c98118d93/bin/uautomizer-ZsLfNo2U6R/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-25 18:29:34,435 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 18:29:34,436 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce27eed8-b0f2-45df-849d-b78c98118d93/bin/uautomizer-ZsLfNo2U6R/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (31)] Waiting until timeout for monitored process [2022-11-25 18:29:34,450 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-25 18:29:34,450 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-11-25 18:29:34,451 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-25 18:29:34,451 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-25 18:29:34,451 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-25 18:29:34,451 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-11-25 18:29:34,452 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-11-25 18:29:34,461 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-11-25 18:29:34,470 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce27eed8-b0f2-45df-849d-b78c98118d93/bin/uautomizer-ZsLfNo2U6R/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (31)] Forceful destruction successful, exit code 0 [2022-11-25 18:29:34,471 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-25 18:29:34,471 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce27eed8-b0f2-45df-849d-b78c98118d93/bin/uautomizer-ZsLfNo2U6R/z3 [2022-11-25 18:29:34,472 INFO L229 MonitoredProcess]: Starting monitored process 32 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce27eed8-b0f2-45df-849d-b78c98118d93/bin/uautomizer-ZsLfNo2U6R/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-25 18:29:34,479 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 18:29:34,493 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce27eed8-b0f2-45df-849d-b78c98118d93/bin/uautomizer-ZsLfNo2U6R/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (32)] Waiting until timeout for monitored process [2022-11-25 18:29:34,494 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-25 18:29:34,494 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-11-25 18:29:34,494 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-25 18:29:34,495 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-25 18:29:34,496 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-25 18:29:34,496 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-11-25 18:29:34,496 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-11-25 18:29:34,519 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-11-25 18:29:34,528 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce27eed8-b0f2-45df-849d-b78c98118d93/bin/uautomizer-ZsLfNo2U6R/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (32)] Forceful destruction successful, exit code 0 [2022-11-25 18:29:34,528 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-25 18:29:34,528 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce27eed8-b0f2-45df-849d-b78c98118d93/bin/uautomizer-ZsLfNo2U6R/z3 [2022-11-25 18:29:34,530 INFO L229 MonitoredProcess]: Starting monitored process 33 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce27eed8-b0f2-45df-849d-b78c98118d93/bin/uautomizer-ZsLfNo2U6R/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-25 18:29:34,534 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 18:29:34,547 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce27eed8-b0f2-45df-849d-b78c98118d93/bin/uautomizer-ZsLfNo2U6R/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (33)] Waiting until timeout for monitored process [2022-11-25 18:29:34,548 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-25 18:29:34,548 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-11-25 18:29:34,549 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-25 18:29:34,549 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-25 18:29:34,549 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-25 18:29:34,549 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-11-25 18:29:34,549 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-11-25 18:29:34,555 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-11-25 18:29:34,558 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce27eed8-b0f2-45df-849d-b78c98118d93/bin/uautomizer-ZsLfNo2U6R/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (33)] Forceful destruction successful, exit code 0 [2022-11-25 18:29:34,558 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-25 18:29:34,558 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce27eed8-b0f2-45df-849d-b78c98118d93/bin/uautomizer-ZsLfNo2U6R/z3 [2022-11-25 18:29:34,559 INFO L229 MonitoredProcess]: Starting monitored process 34 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce27eed8-b0f2-45df-849d-b78c98118d93/bin/uautomizer-ZsLfNo2U6R/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-25 18:29:34,562 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce27eed8-b0f2-45df-849d-b78c98118d93/bin/uautomizer-ZsLfNo2U6R/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (34)] Waiting until timeout for monitored process [2022-11-25 18:29:34,563 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 18:29:34,575 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-25 18:29:34,575 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-11-25 18:29:34,576 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-25 18:29:34,576 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-25 18:29:34,576 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-25 18:29:34,580 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-11-25 18:29:34,580 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-11-25 18:29:34,595 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2022-11-25 18:29:34,598 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2022-11-25 18:29:34,599 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. [2022-11-25 18:29:34,599 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-25 18:29:34,599 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce27eed8-b0f2-45df-849d-b78c98118d93/bin/uautomizer-ZsLfNo2U6R/z3 [2022-11-25 18:29:34,600 INFO L229 MonitoredProcess]: Starting monitored process 35 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce27eed8-b0f2-45df-849d-b78c98118d93/bin/uautomizer-ZsLfNo2U6R/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-25 18:29:34,603 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce27eed8-b0f2-45df-849d-b78c98118d93/bin/uautomizer-ZsLfNo2U6R/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (35)] Waiting until timeout for monitored process [2022-11-25 18:29:34,603 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2022-11-25 18:29:34,603 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2022-11-25 18:29:34,603 INFO L513 LassoAnalysis]: Proved termination. [2022-11-25 18:29:34,604 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(f91_#in~x) = -2*f91_#in~x + 201 Supporting invariants [] [2022-11-25 18:29:34,612 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce27eed8-b0f2-45df-849d-b78c98118d93/bin/uautomizer-ZsLfNo2U6R/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (34)] Ended with exit code 0 [2022-11-25 18:29:34,613 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2022-11-25 18:29:34,626 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 18:29:34,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 18:29:34,719 INFO L263 TraceCheckSpWp]: Trace formula consists of 363 conjuncts, 20 conjunts are in the unsatisfiable core [2022-11-25 18:29:34,729 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 18:29:34,892 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce27eed8-b0f2-45df-849d-b78c98118d93/bin/uautomizer-ZsLfNo2U6R/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (35)] Forceful destruction successful, exit code 0 [2022-11-25 18:29:35,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 18:29:35,079 INFO L263 TraceCheckSpWp]: Trace formula consists of 77 conjuncts, 13 conjunts are in the unsatisfiable core [2022-11-25 18:29:35,080 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 18:29:35,207 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 18:29:35,208 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.2 stem predicates 7 loop predicates [2022-11-25 18:29:35,208 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 97 states and 117 transitions. cyclomatic complexity: 24 Second operand has 9 states, 7 states have (on average 2.0) internal successors, (14), 6 states have internal predecessors, (14), 4 states have call successors, (8), 4 states have call predecessors, (8), 2 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) [2022-11-25 18:29:35,338 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 97 states and 117 transitions. cyclomatic complexity: 24. Second operand has 9 states, 7 states have (on average 2.0) internal successors, (14), 6 states have internal predecessors, (14), 4 states have call successors, (8), 4 states have call predecessors, (8), 2 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) Result 107 states and 127 transitions. Complement of second has 12 states. [2022-11-25 18:29:35,340 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 5 states 2 stem states 2 non-accepting loop states 1 accepting loop states [2022-11-25 18:29:35,341 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9 states, 7 states have (on average 2.0) internal successors, (14), 6 states have internal predecessors, (14), 4 states have call successors, (8), 4 states have call predecessors, (8), 2 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) [2022-11-25 18:29:35,341 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 15 transitions. [2022-11-25 18:29:35,341 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 15 transitions. Stem has 38 letters. Loop has 8 letters. [2022-11-25 18:29:35,341 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-11-25 18:29:35,342 INFO L681 stractBuchiCegarLoop]: Bad chosen interpolant automaton: word not accepted [2022-11-25 18:29:35,354 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 18:29:35,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 18:29:35,433 INFO L263 TraceCheckSpWp]: Trace formula consists of 363 conjuncts, 20 conjunts are in the unsatisfiable core [2022-11-25 18:29:35,436 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 18:29:35,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 18:29:35,745 INFO L263 TraceCheckSpWp]: Trace formula consists of 77 conjuncts, 13 conjunts are in the unsatisfiable core [2022-11-25 18:29:35,746 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 18:29:35,862 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 18:29:35,863 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and with honda bouncer for loop.2 stem predicates 7 loop predicates [2022-11-25 18:29:35,863 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 97 states and 117 transitions. cyclomatic complexity: 24 Second operand has 9 states, 7 states have (on average 2.0) internal successors, (14), 6 states have internal predecessors, (14), 4 states have call successors, (8), 4 states have call predecessors, (8), 2 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) [2022-11-25 18:29:36,172 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 97 states and 117 transitions. cyclomatic complexity: 24. Second operand has 9 states, 7 states have (on average 2.0) internal successors, (14), 6 states have internal predecessors, (14), 4 states have call successors, (8), 4 states have call predecessors, (8), 2 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) Result 125 states and 146 transitions. Complement of second has 24 states. [2022-11-25 18:29:36,177 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 9 states 2 stem states 6 non-accepting loop states 1 accepting loop states [2022-11-25 18:29:36,178 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9 states, 7 states have (on average 2.0) internal successors, (14), 6 states have internal predecessors, (14), 4 states have call successors, (8), 4 states have call predecessors, (8), 2 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) [2022-11-25 18:29:36,178 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 20 transitions. [2022-11-25 18:29:36,178 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 9 states and 20 transitions. Stem has 38 letters. Loop has 8 letters. [2022-11-25 18:29:36,179 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-11-25 18:29:36,179 INFO L681 stractBuchiCegarLoop]: Bad chosen interpolant automaton: word not accepted [2022-11-25 18:29:36,194 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 18:29:36,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 18:29:36,270 INFO L263 TraceCheckSpWp]: Trace formula consists of 363 conjuncts, 20 conjunts are in the unsatisfiable core [2022-11-25 18:29:36,272 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 18:29:36,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 18:29:36,580 INFO L263 TraceCheckSpWp]: Trace formula consists of 77 conjuncts, 13 conjunts are in the unsatisfiable core [2022-11-25 18:29:36,581 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 18:29:36,703 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 18:29:36,704 INFO L141 lantAutomatonBouncer]: Defining Buchi interpolant automaton with scrooge nondeterminism in stemwith honda bouncer for stem and without honda bouncer for loop.2 stem predicates 7 loop predicates [2022-11-25 18:29:36,704 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 97 states and 117 transitions. cyclomatic complexity: 24 Second operand has 9 states, 7 states have (on average 2.0) internal successors, (14), 6 states have internal predecessors, (14), 4 states have call successors, (8), 4 states have call predecessors, (8), 2 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) [2022-11-25 18:29:36,826 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 97 states and 117 transitions. cyclomatic complexity: 24. Second operand has 9 states, 7 states have (on average 2.0) internal successors, (14), 6 states have internal predecessors, (14), 4 states have call successors, (8), 4 states have call predecessors, (8), 2 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) Result 147 states and 167 transitions. Complement of second has 13 states. [2022-11-25 18:29:36,826 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 5 states 2 stem states 2 non-accepting loop states 1 accepting loop states [2022-11-25 18:29:36,827 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9 states, 7 states have (on average 2.0) internal successors, (14), 6 states have internal predecessors, (14), 4 states have call successors, (8), 4 states have call predecessors, (8), 2 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) [2022-11-25 18:29:36,827 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 18 transitions. [2022-11-25 18:29:36,828 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 18 transitions. Stem has 38 letters. Loop has 8 letters. [2022-11-25 18:29:36,828 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-11-25 18:29:36,828 INFO L681 stractBuchiCegarLoop]: Bad chosen interpolant automaton: word not accepted [2022-11-25 18:29:36,842 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 18:29:36,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 18:29:36,915 INFO L263 TraceCheckSpWp]: Trace formula consists of 363 conjuncts, 20 conjunts are in the unsatisfiable core [2022-11-25 18:29:36,916 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 18:29:37,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 18:29:37,233 INFO L263 TraceCheckSpWp]: Trace formula consists of 77 conjuncts, 13 conjunts are in the unsatisfiable core [2022-11-25 18:29:37,234 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 18:29:37,357 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 18:29:37,357 INFO L141 lantAutomatonBouncer]: Defining Buchi interpolant automaton with scrooge nondeterminism in stemwith honda bouncer for stem and with honda bouncer for loop.2 stem predicates 7 loop predicates [2022-11-25 18:29:37,358 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 97 states and 117 transitions. cyclomatic complexity: 24 Second operand has 9 states, 7 states have (on average 2.0) internal successors, (14), 6 states have internal predecessors, (14), 4 states have call successors, (8), 4 states have call predecessors, (8), 2 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) [2022-11-25 18:29:37,788 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 97 states and 117 transitions. cyclomatic complexity: 24. Second operand has 9 states, 7 states have (on average 2.0) internal successors, (14), 6 states have internal predecessors, (14), 4 states have call successors, (8), 4 states have call predecessors, (8), 2 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) Result 182 states and 209 transitions. Complement of second has 48 states. [2022-11-25 18:29:37,788 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 11 states 2 stem states 8 non-accepting loop states 1 accepting loop states [2022-11-25 18:29:37,789 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9 states, 7 states have (on average 2.0) internal successors, (14), 6 states have internal predecessors, (14), 4 states have call successors, (8), 4 states have call predecessors, (8), 2 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) [2022-11-25 18:29:37,789 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 27 transitions. [2022-11-25 18:29:37,789 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 11 states and 27 transitions. Stem has 38 letters. Loop has 8 letters. [2022-11-25 18:29:37,790 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-11-25 18:29:37,790 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 11 states and 27 transitions. Stem has 46 letters. Loop has 8 letters. [2022-11-25 18:29:37,790 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-11-25 18:29:37,790 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 11 states and 27 transitions. Stem has 38 letters. Loop has 16 letters. [2022-11-25 18:29:37,791 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-11-25 18:29:37,792 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 182 states and 209 transitions. [2022-11-25 18:29:37,794 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2022-11-25 18:29:37,795 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 182 states to 0 states and 0 transitions. [2022-11-25 18:29:37,795 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2022-11-25 18:29:37,795 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2022-11-25 18:29:37,795 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2022-11-25 18:29:37,795 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-25 18:29:37,795 INFO L218 hiAutomatonCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-11-25 18:29:37,796 INFO L240 hiAutomatonCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-11-25 18:29:37,796 INFO L428 stractBuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-11-25 18:29:37,796 INFO L335 stractBuchiCegarLoop]: ======== Iteration 6 ============ [2022-11-25 18:29:37,796 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2022-11-25 18:29:37,796 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2022-11-25 18:29:37,796 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2022-11-25 18:29:37,805 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 25.11 06:29:37 BoogieIcfgContainer [2022-11-25 18:29:37,805 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2022-11-25 18:29:37,806 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-25 18:29:37,806 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-25 18:29:37,807 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-25 18:29:37,807 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 06:28:58" (3/4) ... [2022-11-25 18:29:37,811 INFO L140 WitnessPrinter]: No result that supports witness generation found [2022-11-25 18:29:37,811 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-25 18:29:37,812 INFO L158 Benchmark]: Toolchain (without parser) took 40361.32ms. Allocated memory is still 174.1MB. Free memory was 128.3MB in the beginning and 101.0MB in the end (delta: 27.4MB). Peak memory consumption was 30.5MB. Max. memory is 16.1GB. [2022-11-25 18:29:37,812 INFO L158 Benchmark]: CDTParser took 0.37ms. Allocated memory is still 138.4MB. Free memory is still 81.8MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-25 18:29:37,812 INFO L158 Benchmark]: CACSL2BoogieTranslator took 273.06ms. Allocated memory is still 174.1MB. Free memory was 128.3MB in the beginning and 118.2MB in the end (delta: 10.1MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2022-11-25 18:29:37,813 INFO L158 Benchmark]: Boogie Procedure Inliner took 32.54ms. Allocated memory is still 174.1MB. Free memory was 118.2MB in the beginning and 117.3MB in the end (delta: 973.8kB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-25 18:29:37,813 INFO L158 Benchmark]: Boogie Preprocessor took 19.11ms. Allocated memory is still 174.1MB. Free memory was 117.3MB in the beginning and 116.1MB in the end (delta: 1.1MB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-25 18:29:37,813 INFO L158 Benchmark]: RCFGBuilder took 288.44ms. Allocated memory is still 174.1MB. Free memory was 116.1MB in the beginning and 106.8MB in the end (delta: 9.4MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2022-11-25 18:29:37,814 INFO L158 Benchmark]: BuchiAutomizer took 39736.85ms. Allocated memory is still 174.1MB. Free memory was 106.8MB in the beginning and 102.0MB in the end (delta: 4.8MB). Peak memory consumption was 5.3MB. Max. memory is 16.1GB. [2022-11-25 18:29:37,814 INFO L158 Benchmark]: Witness Printer took 4.89ms. Allocated memory is still 174.1MB. Free memory was 102.0MB in the beginning and 101.0MB in the end (delta: 1.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-25 18:29:37,816 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.37ms. Allocated memory is still 138.4MB. Free memory is still 81.8MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 273.06ms. Allocated memory is still 174.1MB. Free memory was 128.3MB in the beginning and 118.2MB in the end (delta: 10.1MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 32.54ms. Allocated memory is still 174.1MB. Free memory was 118.2MB in the beginning and 117.3MB in the end (delta: 973.8kB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 19.11ms. Allocated memory is still 174.1MB. Free memory was 117.3MB in the beginning and 116.1MB in the end (delta: 1.1MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 288.44ms. Allocated memory is still 174.1MB. Free memory was 116.1MB in the beginning and 106.8MB in the end (delta: 9.4MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * BuchiAutomizer took 39736.85ms. Allocated memory is still 174.1MB. Free memory was 106.8MB in the beginning and 102.0MB in the end (delta: 4.8MB). Peak memory consumption was 5.3MB. Max. memory is 16.1GB. * Witness Printer took 4.89ms. Allocated memory is still 174.1MB. Free memory was 102.0MB in the beginning and 101.0MB in the end (delta: 1.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 7 terminating modules (2 trivial, 2 deterministic, 3 nondeterministic). One deterministic module has affine ranking function 211 + -2 * \old(x) and consists of 4 locations. One deterministic module has affine ranking function -2 * aux-f91(x+11)-aux + 201 and consists of 8 locations. One nondeterministic module has affine ranking function -2 * x + 189 and consists of 6 locations. One nondeterministic module has affine ranking function -1 * \old(x) + 90 and consists of 18 locations. One nondeterministic module has affine ranking function -2 * \old(x) + 201 and consists of 11 locations. 2 modules have a trivial ranking function, the largest among these consists of 17 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 39.6s and 6 iterations. TraceHistogramMax:8. Analysis of lassos took 29.8s. Construction of modules took 1.0s. Büchi inclusion checks took 8.4s. Highest rank in rank-based complementation 3. Minimization of det autom 1. Minimization of nondet autom 6. Automata minimization 0.1s AutomataMinimizationTime, 6 MinimizatonAttempts, 48 StatesRemovedByMinimization, 6 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had -1 states and ocurred in iteration -1. Nontrivial modules had stage [2, 0, 2, 1, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 10/24 HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 296 SdHoareTripleChecker+Valid, 1.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 280 mSDsluCounter, 390 SdHoareTripleChecker+Invalid, 1.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 210 mSDsCounter, 216 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 915 IncrementalHoareTripleChecker+Invalid, 1131 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 216 mSolverCounterUnsat, 180 mSDtfsCounter, 915 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown LassoAnalysisResults: nont0 unkn0 SFLI0 SFLT3 conc0 concLT2 SILN0 SILU0 SILI0 SILT0 lasso0 LassoPreprocessingBenchmarks: Lassos: inital14 mio100 ax100 hnf100 lsp100 ukn100 mio100 lsp100 div100 bol100 ite100 ukn100 eq156 hnf93 smp100 dnf100 smp100 tf109 neg95 sie105 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 42ms VariablesStem: 0 VariablesLoop: 0 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 0 MotzkinApplications: 2 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 7 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 3 LassoNonterminationAnalysisUnknown: 2 LassoNonterminationAnalysisTime: 25.7s 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 18:29:37,841 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce27eed8-b0f2-45df-849d-b78c98118d93/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Forceful destruction successful, exit code 0 [2022-11-25 18:29:38,046 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce27eed8-b0f2-45df-849d-b78c98118d93/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