./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/recursive/McCarthy91-2.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 2329fc70 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_5ef07b5f-c816-4b19-8646-8a98ec5aac27/bin/uautomizer-uyxdKDjOR8/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ef07b5f-c816-4b19-8646-8a98ec5aac27/bin/uautomizer-uyxdKDjOR8/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ef07b5f-c816-4b19-8646-8a98ec5aac27/bin/uautomizer-uyxdKDjOR8/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ef07b5f-c816-4b19-8646-8a98ec5aac27/bin/uautomizer-uyxdKDjOR8/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/recursive/McCarthy91-2.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ef07b5f-c816-4b19-8646-8a98ec5aac27/bin/uautomizer-uyxdKDjOR8/config/svcomp-Termination-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ef07b5f-c816-4b19-8646-8a98ec5aac27/bin/uautomizer-uyxdKDjOR8 --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(F end) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 2a5dd5c1c64cd1875ba800cc2db6d1da955f2d2f519c1964ff87558bc42b9b4c --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-2329fc7 [2022-12-13 21:36:49,360 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-13 21:36:49,361 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-13 21:36:49,375 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-13 21:36:49,375 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-13 21:36:49,376 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-13 21:36:49,377 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-13 21:36:49,378 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-13 21:36:49,379 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-13 21:36:49,380 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-13 21:36:49,380 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-13 21:36:49,381 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-13 21:36:49,381 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-13 21:36:49,382 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-13 21:36:49,383 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-13 21:36:49,384 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-13 21:36:49,384 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-13 21:36:49,385 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-13 21:36:49,386 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-13 21:36:49,388 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-13 21:36:49,389 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-13 21:36:49,390 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-13 21:36:49,391 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-13 21:36:49,391 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-13 21:36:49,394 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-13 21:36:49,394 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-13 21:36:49,394 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-13 21:36:49,395 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-13 21:36:49,395 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-13 21:36:49,396 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-13 21:36:49,396 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-13 21:36:49,397 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-13 21:36:49,397 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-13 21:36:49,398 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-13 21:36:49,399 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-13 21:36:49,399 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-13 21:36:49,400 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-13 21:36:49,400 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-13 21:36:49,400 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-13 21:36:49,401 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-13 21:36:49,401 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-13 21:36:49,402 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ef07b5f-c816-4b19-8646-8a98ec5aac27/bin/uautomizer-uyxdKDjOR8/config/svcomp-Termination-32bit-Automizer_Default.epf [2022-12-13 21:36:49,418 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-13 21:36:49,419 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-13 21:36:49,419 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-12-13 21:36:49,419 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-12-13 21:36:49,420 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-12-13 21:36:49,420 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-12-13 21:36:49,420 INFO L138 SettingsManager]: * Use SBE=true [2022-12-13 21:36:49,421 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2022-12-13 21:36:49,421 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2022-12-13 21:36:49,421 INFO L138 SettingsManager]: * Use old map elimination=false [2022-12-13 21:36:49,421 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2022-12-13 21:36:49,421 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2022-12-13 21:36:49,421 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2022-12-13 21:36:49,421 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-13 21:36:49,422 INFO L138 SettingsManager]: * sizeof long=4 [2022-12-13 21:36:49,422 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-12-13 21:36:49,422 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-13 21:36:49,422 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-12-13 21:36:49,422 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-13 21:36:49,422 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2022-12-13 21:36:49,423 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2022-12-13 21:36:49,423 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2022-12-13 21:36:49,423 INFO L138 SettingsManager]: * sizeof long double=12 [2022-12-13 21:36:49,423 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-13 21:36:49,423 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2022-12-13 21:36:49,423 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-13 21:36:49,423 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2022-12-13 21:36:49,424 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-13 21:36:49,424 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-12-13 21:36:49,424 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-13 21:36:49,424 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-12-13 21:36:49,425 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2022-12-13 21:36:49,425 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_5ef07b5f-c816-4b19-8646-8a98ec5aac27/bin/uautomizer-uyxdKDjOR8/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ef07b5f-c816-4b19-8646-8a98ec5aac27/bin/uautomizer-uyxdKDjOR8 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 2a5dd5c1c64cd1875ba800cc2db6d1da955f2d2f519c1964ff87558bc42b9b4c [2022-12-13 21:36:49,589 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-13 21:36:49,609 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-13 21:36:49,612 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-13 21:36:49,613 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-13 21:36:49,613 INFO L275 PluginConnector]: CDTParser initialized [2022-12-13 21:36:49,614 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ef07b5f-c816-4b19-8646-8a98ec5aac27/bin/uautomizer-uyxdKDjOR8/../../sv-benchmarks/c/recursive/McCarthy91-2.c [2022-12-13 21:36:52,287 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-13 21:36:52,399 INFO L351 CDTParser]: Found 1 translation units. [2022-12-13 21:36:52,400 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ef07b5f-c816-4b19-8646-8a98ec5aac27/sv-benchmarks/c/recursive/McCarthy91-2.c [2022-12-13 21:36:52,404 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ef07b5f-c816-4b19-8646-8a98ec5aac27/bin/uautomizer-uyxdKDjOR8/data/9b0ae49ce/0e449b01ed034c2683afa4aec309d1d3/FLAGbc1c8695d [2022-12-13 21:36:52,414 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ef07b5f-c816-4b19-8646-8a98ec5aac27/bin/uautomizer-uyxdKDjOR8/data/9b0ae49ce/0e449b01ed034c2683afa4aec309d1d3 [2022-12-13 21:36:52,416 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-13 21:36:52,417 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-12-13 21:36:52,417 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-13 21:36:52,418 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-13 21:36:52,421 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-13 21:36:52,421 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.12 09:36:52" (1/1) ... [2022-12-13 21:36:52,422 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5db69ad6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 09:36:52, skipping insertion in model container [2022-12-13 21:36:52,422 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.12 09:36:52" (1/1) ... [2022-12-13 21:36:52,428 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-13 21:36:52,438 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-13 21:36:52,533 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_5ef07b5f-c816-4b19-8646-8a98ec5aac27/sv-benchmarks/c/recursive/McCarthy91-2.c[749,762] [2022-12-13 21:36:52,534 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-13 21:36:52,543 INFO L203 MainTranslator]: Completed pre-run [2022-12-13 21:36:52,552 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_5ef07b5f-c816-4b19-8646-8a98ec5aac27/sv-benchmarks/c/recursive/McCarthy91-2.c[749,762] [2022-12-13 21:36:52,553 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-13 21:36:52,562 INFO L208 MainTranslator]: Completed translation [2022-12-13 21:36:52,562 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 09:36:52 WrapperNode [2022-12-13 21:36:52,563 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-13 21:36:52,563 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-13 21:36:52,564 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-13 21:36:52,564 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-13 21:36:52,569 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 09:36:52" (1/1) ... [2022-12-13 21:36:52,574 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 09:36:52" (1/1) ... [2022-12-13 21:36:52,585 INFO L138 Inliner]: procedures = 13, calls = 10, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 21 [2022-12-13 21:36:52,585 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-13 21:36:52,585 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-13 21:36:52,586 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-13 21:36:52,586 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-13 21:36:52,592 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 09:36:52" (1/1) ... [2022-12-13 21:36:52,592 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 09:36:52" (1/1) ... [2022-12-13 21:36:52,593 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 09:36:52" (1/1) ... [2022-12-13 21:36:52,593 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 09:36:52" (1/1) ... [2022-12-13 21:36:52,594 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 09:36:52" (1/1) ... [2022-12-13 21:36:52,596 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 09:36:52" (1/1) ... [2022-12-13 21:36:52,596 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 09:36:52" (1/1) ... [2022-12-13 21:36:52,597 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 09:36:52" (1/1) ... [2022-12-13 21:36:52,597 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-13 21:36:52,598 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-13 21:36:52,598 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-13 21:36:52,598 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-13 21:36:52,599 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 09:36:52" (1/1) ... [2022-12-13 21:36:52,603 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-12-13 21:36:52,610 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ef07b5f-c816-4b19-8646-8a98ec5aac27/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 21:36:52,621 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ef07b5f-c816-4b19-8646-8a98ec5aac27/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-12-13 21:36:52,623 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ef07b5f-c816-4b19-8646-8a98ec5aac27/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2022-12-13 21:36:52,649 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-13 21:36:52,649 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-13 21:36:52,649 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-13 21:36:52,649 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-12-13 21:36:52,650 INFO L130 BoogieDeclarations]: Found specification of procedure f91 [2022-12-13 21:36:52,650 INFO L138 BoogieDeclarations]: Found implementation of procedure f91 [2022-12-13 21:36:52,705 INFO L235 CfgBuilder]: Building ICFG [2022-12-13 21:36:52,707 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-13 21:36:52,777 INFO L276 CfgBuilder]: Performing block encoding [2022-12-13 21:36:52,782 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-13 21:36:52,783 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-12-13 21:36:52,784 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 09:36:52 BoogieIcfgContainer [2022-12-13 21:36:52,785 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-13 21:36:52,786 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2022-12-13 21:36:52,786 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2022-12-13 21:36:52,789 INFO L275 PluginConnector]: BuchiAutomizer initialized [2022-12-13 21:36:52,790 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-12-13 21:36:52,790 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 13.12 09:36:52" (1/3) ... [2022-12-13 21:36:52,791 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@310e5016 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 13.12 09:36:52, skipping insertion in model container [2022-12-13 21:36:52,791 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-12-13 21:36:52,791 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 09:36:52" (2/3) ... [2022-12-13 21:36:52,791 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@310e5016 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 13.12 09:36:52, skipping insertion in model container [2022-12-13 21:36:52,792 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-12-13 21:36:52,792 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 09:36:52" (3/3) ... [2022-12-13 21:36:52,793 INFO L332 chiAutomizerObserver]: Analyzing ICFG McCarthy91-2.c [2022-12-13 21:36:52,839 INFO L303 stractBuchiCegarLoop]: Interprodecural is true [2022-12-13 21:36:52,839 INFO L304 stractBuchiCegarLoop]: Hoare is false [2022-12-13 21:36:52,839 INFO L305 stractBuchiCegarLoop]: Compute interpolants for ForwardPredicates [2022-12-13 21:36:52,839 INFO L306 stractBuchiCegarLoop]: Backedges is STRAIGHT_LINE [2022-12-13 21:36:52,839 INFO L307 stractBuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2022-12-13 21:36:52,839 INFO L308 stractBuchiCegarLoop]: Difference is false [2022-12-13 21:36:52,839 INFO L309 stractBuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2022-12-13 21:36:52,840 INFO L313 stractBuchiCegarLoop]: ======== Iteration 0 == of CEGAR loop == BuchiAutomatonCegarLoop ======== [2022-12-13 21:36:52,843 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) [2022-12-13 21:36:52,860 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2022-12-13 21:36:52,861 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-12-13 21:36:52,861 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-12-13 21:36:52,865 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1] [2022-12-13 21:36:52,866 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1] [2022-12-13 21:36:52,866 INFO L335 stractBuchiCegarLoop]: ======== Iteration 1 ============ [2022-12-13 21:36:52,866 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) [2022-12-13 21:36:52,868 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2022-12-13 21:36:52,868 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-12-13 21:36:52,868 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-12-13 21:36:52,869 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1] [2022-12-13 21:36:52,869 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1] [2022-12-13 21:36:52,875 INFO L748 eck$LassoCheckResult]: Stem: 14#$Ultimate##0true assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int(48, 1, 0, 1);call write~init~int(0, 1, 1, 1);call #Ultimate.allocInit(15, 2);call #Ultimate.allocInit(12, 3); 6#L-1true assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet6#1, main_#t~ret7#1, main_~x~0#1, main_~result~0#1;main_~x~0#1 := main_#t~nondet6#1;havoc main_#t~nondet6#1; 13#L28true call main_#t~ret7#1 := f91(main_~x~0#1);< 11#$Ultimate##0true [2022-12-13 21:36:52,875 INFO L750 eck$LassoCheckResult]: Loop: 11#$Ultimate##0true ~x := #in~x; 8#L18true assume !(~x > 100); 9#L21true call #t~ret4 := f91(11 + ~x);< 11#$Ultimate##0true [2022-12-13 21:36:52,880 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 21:36:52,880 INFO L85 PathProgramCache]: Analyzing trace with hash 29877, now seen corresponding path program 1 times [2022-12-13 21:36:52,889 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 21:36:52,889 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [853542989] [2022-12-13 21:36:52,889 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 21:36:52,890 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 21:36:52,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 21:36:52,960 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-12-13 21:36:52,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 21:36:52,982 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-12-13 21:36:52,984 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 21:36:52,984 INFO L85 PathProgramCache]: Analyzing trace with hash 44821, now seen corresponding path program 1 times [2022-12-13 21:36:52,984 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 21:36:52,985 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [123243559] [2022-12-13 21:36:52,985 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 21:36:52,985 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 21:36:52,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 21:36:52,994 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-12-13 21:36:52,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 21:36:52,999 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-12-13 21:36:53,000 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 21:36:53,000 INFO L85 PathProgramCache]: Analyzing trace with hash 890080737, now seen corresponding path program 1 times [2022-12-13 21:36:53,000 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 21:36:53,000 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1439950744] [2022-12-13 21:36:53,000 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 21:36:53,001 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 21:36:53,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 21:36:53,011 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-12-13 21:36:53,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 21:36:53,021 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-12-13 21:36:53,102 INFO L210 LassoAnalysis]: Preferences: [2022-12-13 21:36:53,103 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-12-13 21:36:53,103 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-12-13 21:36:53,103 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-12-13 21:36:53,104 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2022-12-13 21:36:53,104 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-12-13 21:36:53,104 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-12-13 21:36:53,104 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-12-13 21:36:53,104 INFO L133 ssoRankerPreferences]: Filename of dumped script: McCarthy91-2.c_Iteration1_Loop [2022-12-13 21:36:53,104 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-12-13 21:36:53,105 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-12-13 21:36:53,120 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-12-13 21:36:53,130 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-12-13 21:36:53,139 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-12-13 21:36:53,142 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-12-13 21:36:53,144 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-12-13 21:36:53,185 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-12-13 21:36:53,186 INFO L404 LassoAnalysis]: Checking for nontermination... [2022-12-13 21:36:53,189 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-12-13 21:36:53,189 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ef07b5f-c816-4b19-8646-8a98ec5aac27/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 21:36:53,190 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ef07b5f-c816-4b19-8646-8a98ec5aac27/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-12-13 21:36:53,191 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ef07b5f-c816-4b19-8646-8a98ec5aac27/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Waiting until timeout for monitored process [2022-12-13 21:36:53,193 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-12-13 21:36:53,193 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-12-13 21:36:53,211 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2022-12-13 21:36:53,211 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {f91_#res=0} Honda state: {f91_#res=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2022-12-13 21:36:53,215 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ef07b5f-c816-4b19-8646-8a98ec5aac27/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Forceful destruction successful, exit code 0 [2022-12-13 21:36:53,215 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-12-13 21:36:53,215 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ef07b5f-c816-4b19-8646-8a98ec5aac27/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 21:36:53,216 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ef07b5f-c816-4b19-8646-8a98ec5aac27/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-12-13 21:36:53,217 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ef07b5f-c816-4b19-8646-8a98ec5aac27/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Waiting until timeout for monitored process [2022-12-13 21:36:53,219 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-12-13 21:36:53,219 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-12-13 21:36:53,234 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ef07b5f-c816-4b19-8646-8a98ec5aac27/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Forceful destruction successful, exit code 0 [2022-12-13 21:36:53,234 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-12-13 21:36:53,234 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ef07b5f-c816-4b19-8646-8a98ec5aac27/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 21:36:53,235 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ef07b5f-c816-4b19-8646-8a98ec5aac27/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-12-13 21:36:53,236 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ef07b5f-c816-4b19-8646-8a98ec5aac27/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Waiting until timeout for monitored process [2022-12-13 21:36:53,237 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2022-12-13 21:36:53,237 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-12-13 21:36:53,820 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2022-12-13 21:36:53,824 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ef07b5f-c816-4b19-8646-8a98ec5aac27/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Ended with exit code 0 [2022-12-13 21:36:53,824 INFO L210 LassoAnalysis]: Preferences: [2022-12-13 21:36:53,824 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-12-13 21:36:53,824 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-12-13 21:36:53,824 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-12-13 21:36:53,824 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2022-12-13 21:36:53,824 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-12-13 21:36:53,825 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-12-13 21:36:53,825 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-12-13 21:36:53,825 INFO L133 ssoRankerPreferences]: Filename of dumped script: McCarthy91-2.c_Iteration1_Loop [2022-12-13 21:36:53,825 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-12-13 21:36:53,825 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-12-13 21:36:53,826 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-12-13 21:36:53,828 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-12-13 21:36:53,840 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-12-13 21:36:53,843 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-12-13 21:36:53,845 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-12-13 21:36:53,875 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-12-13 21:36:53,878 INFO L490 LassoAnalysis]: Using template 'affine'. [2022-12-13 21:36:53,879 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-12-13 21:36:53,880 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ef07b5f-c816-4b19-8646-8a98ec5aac27/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 21:36:53,881 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ef07b5f-c816-4b19-8646-8a98ec5aac27/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-12-13 21:36:53,881 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ef07b5f-c816-4b19-8646-8a98ec5aac27/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Waiting until timeout for monitored process [2022-12-13 21:36:53,883 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2022-12-13 21:36:53,893 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-12-13 21:36:53,893 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-12-13 21:36:53,894 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-12-13 21:36:53,894 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-12-13 21:36:53,894 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-12-13 21:36:53,895 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-12-13 21:36:53,896 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-12-13 21:36:53,898 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-12-13 21:36:53,900 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ef07b5f-c816-4b19-8646-8a98ec5aac27/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Ended with exit code 0 [2022-12-13 21:36:53,901 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-12-13 21:36:53,901 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ef07b5f-c816-4b19-8646-8a98ec5aac27/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 21:36:53,902 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ef07b5f-c816-4b19-8646-8a98ec5aac27/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-12-13 21:36:53,903 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ef07b5f-c816-4b19-8646-8a98ec5aac27/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Waiting until timeout for monitored process [2022-12-13 21:36:53,904 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2022-12-13 21:36:53,914 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-12-13 21:36:53,914 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-12-13 21:36:53,914 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-12-13 21:36:53,914 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-12-13 21:36:53,915 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-12-13 21:36:53,916 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-12-13 21:36:53,916 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-12-13 21:36:53,919 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2022-12-13 21:36:53,923 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2022-12-13 21:36:53,923 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. [2022-12-13 21:36:53,925 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-12-13 21:36:53,925 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ef07b5f-c816-4b19-8646-8a98ec5aac27/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 21:36:53,944 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ef07b5f-c816-4b19-8646-8a98ec5aac27/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-12-13 21:36:53,945 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ef07b5f-c816-4b19-8646-8a98ec5aac27/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Waiting until timeout for monitored process [2022-12-13 21:36:53,946 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2022-12-13 21:36:53,946 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2022-12-13 21:36:53,946 INFO L513 LassoAnalysis]: Proved termination. [2022-12-13 21:36:53,946 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(f91_#in~x) = -2*f91_#in~x + 211 Supporting invariants [] [2022-12-13 21:36:53,949 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ef07b5f-c816-4b19-8646-8a98ec5aac27/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Ended with exit code 0 [2022-12-13 21:36:53,952 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2022-12-13 21:36:53,974 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 21:36:53,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:36:53,994 INFO L263 TraceCheckSpWp]: Trace formula consists of 58 conjuncts, 4 conjunts are in the unsatisfiable core [2022-12-13 21:36:53,995 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 21:36:54,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:36:54,013 INFO L263 TraceCheckSpWp]: Trace formula consists of 37 conjuncts, 7 conjunts are in the unsatisfiable core [2022-12-13 21:36:54,014 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 21:36:54,047 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 21:36:54,070 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 [2022-12-13 21:36:54,071 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) [2022-12-13 21:36:54,141 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. [2022-12-13 21:36:54,143 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 [2022-12-13 21:36:54,147 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) [2022-12-13 21:36:54,148 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 8 transitions. [2022-12-13 21:36:54,149 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 8 transitions. Stem has 3 letters. Loop has 3 letters. [2022-12-13 21:36:54,150 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-12-13 21:36:54,150 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 8 transitions. Stem has 6 letters. Loop has 3 letters. [2022-12-13 21:36:54,151 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-12-13 21:36:54,151 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 8 transitions. Stem has 3 letters. Loop has 6 letters. [2022-12-13 21:36:54,151 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-12-13 21:36:54,152 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 34 states and 42 transitions. [2022-12-13 21:36:54,154 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2022-12-13 21:36:54,159 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 34 states to 19 states and 25 transitions. [2022-12-13 21:36:54,160 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 13 [2022-12-13 21:36:54,160 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 14 [2022-12-13 21:36:54,161 INFO L73 IsDeterministic]: Start isDeterministic. Operand 19 states and 25 transitions. [2022-12-13 21:36:54,161 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2022-12-13 21:36:54,162 INFO L218 hiAutomatonCegarLoop]: Abstraction has 19 states and 25 transitions. [2022-12-13 21:36:54,173 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19 states and 25 transitions. [2022-12-13 21:36:54,181 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19 to 17. [2022-12-13 21:36:54,181 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) [2022-12-13 21:36:54,182 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 21 transitions. [2022-12-13 21:36:54,182 INFO L240 hiAutomatonCegarLoop]: Abstraction has 17 states and 21 transitions. [2022-12-13 21:36:54,183 INFO L428 stractBuchiCegarLoop]: Abstraction has 17 states and 21 transitions. [2022-12-13 21:36:54,183 INFO L335 stractBuchiCegarLoop]: ======== Iteration 2 ============ [2022-12-13 21:36:54,183 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 17 states and 21 transitions. [2022-12-13 21:36:54,184 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2022-12-13 21:36:54,184 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-12-13 21:36:54,184 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-12-13 21:36:54,185 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [2, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 21:36:54,185 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [2, 1, 1, 1, 1, 1, 1] [2022-12-13 21:36:54,185 INFO L748 eck$LassoCheckResult]: Stem: 112#$Ultimate##0 assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int(48, 1, 0, 1);call write~init~int(0, 1, 1, 1);call #Ultimate.allocInit(15, 2);call #Ultimate.allocInit(12, 3); 113#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet6#1, main_#t~ret7#1, main_~x~0#1, main_~result~0#1;main_~x~0#1 := main_#t~nondet6#1;havoc main_#t~nondet6#1; 106#L28 call main_#t~ret7#1 := f91(main_~x~0#1);< 105#$Ultimate##0 ~x := #in~x; 107#L18 assume !(~x > 100); 103#L21 call #t~ret4 := f91(11 + ~x);< 108#$Ultimate##0 ~x := #in~x; 109#L18 assume ~x > 100;#res := ~x - 10; 116#f91FINAL assume true; 102#f91EXIT >#27#return; 104#L21-1 [2022-12-13 21:36:54,185 INFO L750 eck$LassoCheckResult]: Loop: 104#L21-1 call #t~ret5 := f91(#t~ret4);< 111#$Ultimate##0 ~x := #in~x; 118#L18 assume !(~x > 100); 110#L21 call #t~ret4 := f91(11 + ~x);< 111#$Ultimate##0 ~x := #in~x; 118#L18 assume ~x > 100;#res := ~x - 10; 115#f91FINAL assume true; 117#f91EXIT >#27#return; 104#L21-1 [2022-12-13 21:36:54,186 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 21:36:54,186 INFO L85 PathProgramCache]: Analyzing trace with hash -1243034264, now seen corresponding path program 1 times [2022-12-13 21:36:54,186 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 21:36:54,187 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1221357427] [2022-12-13 21:36:54,187 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 21:36:54,187 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 21:36:54,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 21:36:54,198 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-12-13 21:36:54,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 21:36:54,209 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-12-13 21:36:54,209 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 21:36:54,209 INFO L85 PathProgramCache]: Analyzing trace with hash 742678306, now seen corresponding path program 1 times [2022-12-13 21:36:54,210 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 21:36:54,210 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [443922012] [2022-12-13 21:36:54,210 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 21:36:54,210 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 21:36:54,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 21:36:54,217 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-12-13 21:36:54,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 21:36:54,223 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-12-13 21:36:54,224 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 21:36:54,224 INFO L85 PathProgramCache]: Analyzing trace with hash -291973751, now seen corresponding path program 1 times [2022-12-13 21:36:54,224 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 21:36:54,225 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2075014970] [2022-12-13 21:36:54,225 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 21:36:54,225 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 21:36:54,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 21:36:54,240 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-12-13 21:36:54,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 21:36:54,254 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-12-13 21:36:54,348 INFO L210 LassoAnalysis]: Preferences: [2022-12-13 21:36:54,348 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-12-13 21:36:54,348 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-12-13 21:36:54,348 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-12-13 21:36:54,348 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2022-12-13 21:36:54,348 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-12-13 21:36:54,348 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-12-13 21:36:54,348 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-12-13 21:36:54,348 INFO L133 ssoRankerPreferences]: Filename of dumped script: McCarthy91-2.c_Iteration2_Loop [2022-12-13 21:36:54,348 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-12-13 21:36:54,348 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-12-13 21:36:54,349 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-12-13 21:36:54,350 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-12-13 21:36:54,352 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-12-13 21:36:54,378 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-12-13 21:36:54,378 INFO L404 LassoAnalysis]: Checking for nontermination... [2022-12-13 21:36:54,378 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-12-13 21:36:54,378 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ef07b5f-c816-4b19-8646-8a98ec5aac27/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 21:36:54,379 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ef07b5f-c816-4b19-8646-8a98ec5aac27/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-12-13 21:36:54,380 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ef07b5f-c816-4b19-8646-8a98ec5aac27/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Waiting until timeout for monitored process [2022-12-13 21:36:54,381 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-12-13 21:36:54,381 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-12-13 21:36:54,392 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2022-12-13 21:36:54,393 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {f91_#t~ret5=0} Honda state: {f91_#t~ret5=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2022-12-13 21:36:54,395 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ef07b5f-c816-4b19-8646-8a98ec5aac27/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Ended with exit code 0 [2022-12-13 21:36:54,395 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-12-13 21:36:54,396 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ef07b5f-c816-4b19-8646-8a98ec5aac27/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 21:36:54,396 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ef07b5f-c816-4b19-8646-8a98ec5aac27/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-12-13 21:36:54,397 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ef07b5f-c816-4b19-8646-8a98ec5aac27/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Waiting until timeout for monitored process [2022-12-13 21:36:54,399 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-12-13 21:36:54,399 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-12-13 21:36:54,410 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2022-12-13 21:36:54,410 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {f91_#res=0} Honda state: {f91_#res=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2022-12-13 21:36:54,413 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ef07b5f-c816-4b19-8646-8a98ec5aac27/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Ended with exit code 0 [2022-12-13 21:36:54,413 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-12-13 21:36:54,413 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ef07b5f-c816-4b19-8646-8a98ec5aac27/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 21:36:54,414 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ef07b5f-c816-4b19-8646-8a98ec5aac27/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-12-13 21:36:54,415 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ef07b5f-c816-4b19-8646-8a98ec5aac27/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Waiting until timeout for monitored process [2022-12-13 21:36:54,416 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-12-13 21:36:54,416 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-12-13 21:36:54,445 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ef07b5f-c816-4b19-8646-8a98ec5aac27/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Ended with exit code 0 [2022-12-13 21:36:54,445 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-12-13 21:36:54,445 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ef07b5f-c816-4b19-8646-8a98ec5aac27/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 21:36:54,446 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ef07b5f-c816-4b19-8646-8a98ec5aac27/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-12-13 21:36:54,447 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ef07b5f-c816-4b19-8646-8a98ec5aac27/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Waiting until timeout for monitored process [2022-12-13 21:36:54,448 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2022-12-13 21:36:54,448 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-12-13 21:37:06,692 INFO L442 LassoAnalysis]: Proving nontermination failed: SMT Solver returned 'unknown'. [2022-12-13 21:37:06,706 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ef07b5f-c816-4b19-8646-8a98ec5aac27/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Forceful destruction successful, exit code 0 [2022-12-13 21:37:06,706 INFO L210 LassoAnalysis]: Preferences: [2022-12-13 21:37:06,706 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-12-13 21:37:06,706 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-12-13 21:37:06,706 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-12-13 21:37:06,707 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2022-12-13 21:37:06,707 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-12-13 21:37:06,707 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-12-13 21:37:06,707 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-12-13 21:37:06,707 INFO L133 ssoRankerPreferences]: Filename of dumped script: McCarthy91-2.c_Iteration2_Loop [2022-12-13 21:37:06,707 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-12-13 21:37:06,707 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-12-13 21:37:06,709 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-12-13 21:37:06,711 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-12-13 21:37:06,721 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-12-13 21:37:06,752 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-12-13 21:37:06,752 INFO L490 LassoAnalysis]: Using template 'affine'. [2022-12-13 21:37:06,752 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-12-13 21:37:06,752 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ef07b5f-c816-4b19-8646-8a98ec5aac27/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 21:37:06,753 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ef07b5f-c816-4b19-8646-8a98ec5aac27/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-12-13 21:37:06,754 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ef07b5f-c816-4b19-8646-8a98ec5aac27/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Waiting until timeout for monitored process [2022-12-13 21:37:06,755 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2022-12-13 21:37:06,765 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-12-13 21:37:06,765 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-12-13 21:37:06,765 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-12-13 21:37:06,765 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-12-13 21:37:06,766 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-12-13 21:37:06,766 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-12-13 21:37:06,766 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-12-13 21:37:06,768 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-12-13 21:37:06,770 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ef07b5f-c816-4b19-8646-8a98ec5aac27/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Forceful destruction successful, exit code 0 [2022-12-13 21:37:06,771 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-12-13 21:37:06,771 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ef07b5f-c816-4b19-8646-8a98ec5aac27/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 21:37:06,772 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ef07b5f-c816-4b19-8646-8a98ec5aac27/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-12-13 21:37:06,772 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ef07b5f-c816-4b19-8646-8a98ec5aac27/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Waiting until timeout for monitored process [2022-12-13 21:37:06,774 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2022-12-13 21:37:06,784 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-12-13 21:37:06,784 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-12-13 21:37:06,784 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-12-13 21:37:06,784 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-12-13 21:37:06,784 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-12-13 21:37:06,786 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-12-13 21:37:06,786 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-12-13 21:37:06,789 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2022-12-13 21:37:06,793 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2022-12-13 21:37:06,793 INFO L444 ModelExtractionUtils]: 2 out of 5 variables were initially zero. Simplification set additionally 0 variables to zero. [2022-12-13 21:37:06,794 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-12-13 21:37:06,794 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ef07b5f-c816-4b19-8646-8a98ec5aac27/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 21:37:06,795 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ef07b5f-c816-4b19-8646-8a98ec5aac27/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-12-13 21:37:06,796 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ef07b5f-c816-4b19-8646-8a98ec5aac27/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (14)] Waiting until timeout for monitored process [2022-12-13 21:37:06,797 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2022-12-13 21:37:06,797 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2022-12-13 21:37:06,797 INFO L513 LassoAnalysis]: Proved termination. [2022-12-13 21:37:06,797 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(f91_#t~ret4) = -2*f91_#t~ret4 + 201 Supporting invariants [] [2022-12-13 21:37:06,800 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ef07b5f-c816-4b19-8646-8a98ec5aac27/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Ended with exit code 0 [2022-12-13 21:37:06,801 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2022-12-13 21:37:06,811 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 21:37:06,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:37:06,830 INFO L263 TraceCheckSpWp]: Trace formula consists of 101 conjuncts, 6 conjunts are in the unsatisfiable core [2022-12-13 21:37:06,831 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 21:37:06,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:37:06,903 INFO L263 TraceCheckSpWp]: Trace formula consists of 77 conjuncts, 13 conjunts are in the unsatisfiable core [2022-12-13 21:37:06,905 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 21:37:06,981 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ef07b5f-c816-4b19-8646-8a98ec5aac27/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Ended with exit code 0 [2022-12-13 21:37:06,983 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ef07b5f-c816-4b19-8646-8a98ec5aac27/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (14)] Ended with exit code 0 [2022-12-13 21:37:06,995 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 21:37:06,996 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 [2022-12-13 21:37:06,996 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) [2022-12-13 21:37:07,140 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. [2022-12-13 21:37:07,140 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 [2022-12-13 21:37:07,141 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) [2022-12-13 21:37:07,142 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 17 transitions. [2022-12-13 21:37:07,142 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 8 states and 17 transitions. Stem has 10 letters. Loop has 8 letters. [2022-12-13 21:37:07,142 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-12-13 21:37:07,142 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 8 states and 17 transitions. Stem has 18 letters. Loop has 8 letters. [2022-12-13 21:37:07,142 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-12-13 21:37:07,142 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 8 states and 17 transitions. Stem has 10 letters. Loop has 16 letters. [2022-12-13 21:37:07,142 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-12-13 21:37:07,142 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 51 states and 73 transitions. [2022-12-13 21:37:07,145 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 7 [2022-12-13 21:37:07,147 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 51 states to 42 states and 62 transitions. [2022-12-13 21:37:07,147 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 26 [2022-12-13 21:37:07,147 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 27 [2022-12-13 21:37:07,147 INFO L73 IsDeterministic]: Start isDeterministic. Operand 42 states and 62 transitions. [2022-12-13 21:37:07,147 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2022-12-13 21:37:07,147 INFO L218 hiAutomatonCegarLoop]: Abstraction has 42 states and 62 transitions. [2022-12-13 21:37:07,147 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 42 states and 62 transitions. [2022-12-13 21:37:07,150 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 42 to 36. [2022-12-13 21:37:07,150 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) [2022-12-13 21:37:07,151 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36 states to 36 states and 51 transitions. [2022-12-13 21:37:07,151 INFO L240 hiAutomatonCegarLoop]: Abstraction has 36 states and 51 transitions. [2022-12-13 21:37:07,151 INFO L428 stractBuchiCegarLoop]: Abstraction has 36 states and 51 transitions. [2022-12-13 21:37:07,151 INFO L335 stractBuchiCegarLoop]: ======== Iteration 3 ============ [2022-12-13 21:37:07,151 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 36 states and 51 transitions. [2022-12-13 21:37:07,152 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 7 [2022-12-13 21:37:07,152 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-12-13 21:37:07,152 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-12-13 21:37:07,153 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [3, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 21:37:07,153 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1] [2022-12-13 21:37:07,153 INFO L748 eck$LassoCheckResult]: Stem: 309#$Ultimate##0 assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int(48, 1, 0, 1);call write~init~int(0, 1, 1, 1);call #Ultimate.allocInit(15, 2);call #Ultimate.allocInit(12, 3); 310#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; 303#L28 call main_#t~ret7#1 := f91(main_~x~0#1);< 308#$Ultimate##0 ~x := #in~x; 314#L18 assume !(~x > 100); 298#L21 call #t~ret4 := f91(11 + ~x);< 297#$Ultimate##0 ~x := #in~x; 301#L18 assume ~x > 100;#res := ~x - 10; 319#f91FINAL assume true; 318#f91EXIT >#27#return; 289#L21-1 call #t~ret5 := f91(#t~ret4);< 307#$Ultimate##0 ~x := #in~x; 321#L18 assume !(~x > 100); 295#L21 [2022-12-13 21:37:07,153 INFO L750 eck$LassoCheckResult]: Loop: 295#L21 call #t~ret4 := f91(11 + ~x);< 294#$Ultimate##0 ~x := #in~x; 296#L18 assume !(~x > 100); 295#L21 [2022-12-13 21:37:07,153 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 21:37:07,153 INFO L85 PathProgramCache]: Analyzing trace with hash -25705320, now seen corresponding path program 2 times [2022-12-13 21:37:07,153 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 21:37:07,153 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [295609425] [2022-12-13 21:37:07,153 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 21:37:07,153 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 21:37:07,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 21:37:07,159 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-12-13 21:37:07,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 21:37:07,165 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-12-13 21:37:07,166 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 21:37:07,166 INFO L85 PathProgramCache]: Analyzing trace with hash 55261, now seen corresponding path program 2 times [2022-12-13 21:37:07,166 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 21:37:07,166 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1803923604] [2022-12-13 21:37:07,166 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 21:37:07,166 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 21:37:07,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 21:37:07,168 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-12-13 21:37:07,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 21:37:07,170 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-12-13 21:37:07,171 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 21:37:07,171 INFO L85 PathProgramCache]: Analyzing trace with hash -1282983962, now seen corresponding path program 3 times [2022-12-13 21:37:07,171 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 21:37:07,171 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1165245017] [2022-12-13 21:37:07,171 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 21:37:07,171 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 21:37:07,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:37:07,251 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2022-12-13 21:37:07,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:37:07,271 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-12-13 21:37:07,271 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 21:37:07,272 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1165245017] [2022-12-13 21:37:07,272 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1165245017] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 21:37:07,272 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 21:37:07,272 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-12-13 21:37:07,273 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2112013968] [2022-12-13 21:37:07,273 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 21:37:07,305 INFO L210 LassoAnalysis]: Preferences: [2022-12-13 21:37:07,305 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-12-13 21:37:07,305 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-12-13 21:37:07,306 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-12-13 21:37:07,306 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2022-12-13 21:37:07,306 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-12-13 21:37:07,306 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-12-13 21:37:07,306 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-12-13 21:37:07,306 INFO L133 ssoRankerPreferences]: Filename of dumped script: McCarthy91-2.c_Iteration3_Loop [2022-12-13 21:37:07,306 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-12-13 21:37:07,306 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-12-13 21:37:07,307 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-12-13 21:37:07,308 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-12-13 21:37:07,313 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-12-13 21:37:07,315 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-12-13 21:37:07,335 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-12-13 21:37:07,335 INFO L404 LassoAnalysis]: Checking for nontermination... [2022-12-13 21:37:07,335 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-12-13 21:37:07,335 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ef07b5f-c816-4b19-8646-8a98ec5aac27/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 21:37:07,336 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ef07b5f-c816-4b19-8646-8a98ec5aac27/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-12-13 21:37:07,337 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ef07b5f-c816-4b19-8646-8a98ec5aac27/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (15)] Waiting until timeout for monitored process [2022-12-13 21:37:07,338 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-12-13 21:37:07,338 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-12-13 21:37:07,350 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2022-12-13 21:37:07,350 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {f91_#t~ret4=0} Honda state: {f91_#t~ret4=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2022-12-13 21:37:07,353 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ef07b5f-c816-4b19-8646-8a98ec5aac27/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (15)] Ended with exit code 0 [2022-12-13 21:37:07,353 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-12-13 21:37:07,353 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ef07b5f-c816-4b19-8646-8a98ec5aac27/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 21:37:07,354 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ef07b5f-c816-4b19-8646-8a98ec5aac27/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-12-13 21:37:07,354 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ef07b5f-c816-4b19-8646-8a98ec5aac27/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (16)] Waiting until timeout for monitored process [2022-12-13 21:37:07,356 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-12-13 21:37:07,356 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-12-13 21:37:07,380 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ef07b5f-c816-4b19-8646-8a98ec5aac27/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (16)] Forceful destruction successful, exit code 0 [2022-12-13 21:37:07,380 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-12-13 21:37:07,381 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ef07b5f-c816-4b19-8646-8a98ec5aac27/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 21:37:07,381 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ef07b5f-c816-4b19-8646-8a98ec5aac27/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-12-13 21:37:07,382 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ef07b5f-c816-4b19-8646-8a98ec5aac27/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (17)] Waiting until timeout for monitored process [2022-12-13 21:37:07,383 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2022-12-13 21:37:07,384 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-12-13 21:37:19,405 INFO L442 LassoAnalysis]: Proving nontermination failed: SMT Solver returned 'unknown'. [2022-12-13 21:37:19,410 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ef07b5f-c816-4b19-8646-8a98ec5aac27/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (17)] Ended with exit code 0 [2022-12-13 21:37:19,410 INFO L210 LassoAnalysis]: Preferences: [2022-12-13 21:37:19,411 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-12-13 21:37:19,411 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-12-13 21:37:19,411 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-12-13 21:37:19,411 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2022-12-13 21:37:19,411 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-12-13 21:37:19,411 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-12-13 21:37:19,411 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-12-13 21:37:19,411 INFO L133 ssoRankerPreferences]: Filename of dumped script: McCarthy91-2.c_Iteration3_Loop [2022-12-13 21:37:19,411 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-12-13 21:37:19,411 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-12-13 21:37:19,412 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-12-13 21:37:19,414 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-12-13 21:37:19,418 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-12-13 21:37:19,419 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-12-13 21:37:19,438 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-12-13 21:37:19,438 INFO L490 LassoAnalysis]: Using template 'affine'. [2022-12-13 21:37:19,438 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-12-13 21:37:19,438 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ef07b5f-c816-4b19-8646-8a98ec5aac27/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 21:37:19,439 INFO L229 MonitoredProcess]: Starting monitored process 18 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ef07b5f-c816-4b19-8646-8a98ec5aac27/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-12-13 21:37:19,440 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ef07b5f-c816-4b19-8646-8a98ec5aac27/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (18)] Waiting until timeout for monitored process [2022-12-13 21:37:19,441 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2022-12-13 21:37:19,450 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-12-13 21:37:19,451 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-12-13 21:37:19,451 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-12-13 21:37:19,451 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-12-13 21:37:19,451 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-12-13 21:37:19,451 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-12-13 21:37:19,451 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-12-13 21:37:19,453 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-12-13 21:37:19,455 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ef07b5f-c816-4b19-8646-8a98ec5aac27/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (18)] Ended with exit code 0 [2022-12-13 21:37:19,455 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-12-13 21:37:19,455 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ef07b5f-c816-4b19-8646-8a98ec5aac27/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 21:37:19,456 INFO L229 MonitoredProcess]: Starting monitored process 19 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ef07b5f-c816-4b19-8646-8a98ec5aac27/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-12-13 21:37:19,457 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ef07b5f-c816-4b19-8646-8a98ec5aac27/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (19)] Waiting until timeout for monitored process [2022-12-13 21:37:19,458 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2022-12-13 21:37:19,470 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-12-13 21:37:19,470 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-12-13 21:37:19,470 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-12-13 21:37:19,470 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-12-13 21:37:19,470 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-12-13 21:37:19,471 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-12-13 21:37:19,471 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-12-13 21:37:19,474 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2022-12-13 21:37:19,476 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2022-12-13 21:37:19,476 INFO L444 ModelExtractionUtils]: 1 out of 4 variables were initially zero. Simplification set additionally 0 variables to zero. [2022-12-13 21:37:19,477 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-12-13 21:37:19,477 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ef07b5f-c816-4b19-8646-8a98ec5aac27/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 21:37:19,477 INFO L229 MonitoredProcess]: Starting monitored process 20 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ef07b5f-c816-4b19-8646-8a98ec5aac27/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-12-13 21:37:19,478 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ef07b5f-c816-4b19-8646-8a98ec5aac27/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (20)] Waiting until timeout for monitored process [2022-12-13 21:37:19,479 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2022-12-13 21:37:19,479 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2022-12-13 21:37:19,479 INFO L513 LassoAnalysis]: Proved termination. [2022-12-13 21:37:19,480 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(f91_~x) = -2*f91_~x + 189 Supporting invariants [] [2022-12-13 21:37:19,482 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ef07b5f-c816-4b19-8646-8a98ec5aac27/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (19)] Ended with exit code 0 [2022-12-13 21:37:19,483 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2022-12-13 21:37:19,490 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 21:37:19,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:37:19,502 INFO L263 TraceCheckSpWp]: Trace formula consists of 136 conjuncts, 8 conjunts are in the unsatisfiable core [2022-12-13 21:37:19,502 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 21:37:19,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:37:19,552 INFO L263 TraceCheckSpWp]: Trace formula consists of 37 conjuncts, 7 conjunts are in the unsatisfiable core [2022-12-13 21:37:19,553 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 21:37:19,572 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 21:37:19,572 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 [2022-12-13 21:37:19,573 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) [2022-12-13 21:37:19,617 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. [2022-12-13 21:37:19,618 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 [2022-12-13 21:37:19,618 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) [2022-12-13 21:37:19,619 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 11 transitions. [2022-12-13 21:37:19,619 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states and 11 transitions. Stem has 13 letters. Loop has 3 letters. [2022-12-13 21:37:19,619 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-12-13 21:37:19,619 INFO L681 stractBuchiCegarLoop]: Bad chosen interpolant automaton: word not accepted [2022-12-13 21:37:19,627 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 21:37:19,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:37:19,644 INFO L263 TraceCheckSpWp]: Trace formula consists of 136 conjuncts, 8 conjunts are in the unsatisfiable core [2022-12-13 21:37:19,646 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 21:37:19,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:37:19,696 INFO L263 TraceCheckSpWp]: Trace formula consists of 37 conjuncts, 7 conjunts are in the unsatisfiable core [2022-12-13 21:37:19,696 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 21:37:19,713 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 21:37:19,713 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 [2022-12-13 21:37:19,713 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) [2022-12-13 21:37:19,751 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. [2022-12-13 21:37:19,752 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 [2022-12-13 21:37:19,752 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) [2022-12-13 21:37:19,752 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 11 transitions. [2022-12-13 21:37:19,752 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states and 11 transitions. Stem has 13 letters. Loop has 3 letters. [2022-12-13 21:37:19,753 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-12-13 21:37:19,753 INFO L681 stractBuchiCegarLoop]: Bad chosen interpolant automaton: word not accepted [2022-12-13 21:37:19,761 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 21:37:19,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:37:19,780 INFO L263 TraceCheckSpWp]: Trace formula consists of 136 conjuncts, 8 conjunts are in the unsatisfiable core [2022-12-13 21:37:19,781 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 21:37:19,815 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ef07b5f-c816-4b19-8646-8a98ec5aac27/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (20)] Ended with exit code 0 [2022-12-13 21:37:19,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:37:19,839 INFO L263 TraceCheckSpWp]: Trace formula consists of 37 conjuncts, 7 conjunts are in the unsatisfiable core [2022-12-13 21:37:19,839 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 21:37:19,859 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 21:37:19,860 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 [2022-12-13 21:37:19,860 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) [2022-12-13 21:37:19,915 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. [2022-12-13 21:37:19,916 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 [2022-12-13 21:37:19,916 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) [2022-12-13 21:37:19,917 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 19 transitions. [2022-12-13 21:37:19,917 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states and 19 transitions. Stem has 13 letters. Loop has 3 letters. [2022-12-13 21:37:19,917 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-12-13 21:37:19,917 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states and 19 transitions. Stem has 16 letters. Loop has 3 letters. [2022-12-13 21:37:19,917 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-12-13 21:37:19,917 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states and 19 transitions. Stem has 13 letters. Loop has 6 letters. [2022-12-13 21:37:19,917 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-12-13 21:37:19,918 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 71 states and 100 transitions. [2022-12-13 21:37:19,919 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 9 [2022-12-13 21:37:19,920 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 71 states to 48 states and 74 transitions. [2022-12-13 21:37:19,920 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 26 [2022-12-13 21:37:19,921 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 28 [2022-12-13 21:37:19,921 INFO L73 IsDeterministic]: Start isDeterministic. Operand 48 states and 74 transitions. [2022-12-13 21:37:19,921 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2022-12-13 21:37:19,921 INFO L218 hiAutomatonCegarLoop]: Abstraction has 48 states and 74 transitions. [2022-12-13 21:37:19,921 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 48 states and 74 transitions. [2022-12-13 21:37:19,923 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 48 to 42. [2022-12-13 21:37:19,924 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) [2022-12-13 21:37:19,924 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42 states to 42 states and 60 transitions. [2022-12-13 21:37:19,924 INFO L240 hiAutomatonCegarLoop]: Abstraction has 42 states and 60 transitions. [2022-12-13 21:37:19,924 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 21:37:19,926 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-12-13 21:37:19,926 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2022-12-13 21:37:19,927 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) [2022-12-13 21:37:20,010 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 21:37:20,010 INFO L93 Difference]: Finished difference Result 63 states and 82 transitions. [2022-12-13 21:37:20,011 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 63 states and 82 transitions. [2022-12-13 21:37:20,013 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 11 [2022-12-13 21:37:20,015 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 63 states to 58 states and 75 transitions. [2022-12-13 21:37:20,015 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 42 [2022-12-13 21:37:20,016 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 42 [2022-12-13 21:37:20,016 INFO L73 IsDeterministic]: Start isDeterministic. Operand 58 states and 75 transitions. [2022-12-13 21:37:20,016 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2022-12-13 21:37:20,016 INFO L218 hiAutomatonCegarLoop]: Abstraction has 58 states and 75 transitions. [2022-12-13 21:37:20,016 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 58 states and 75 transitions. [2022-12-13 21:37:20,018 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 58 to 57. [2022-12-13 21:37:20,019 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) [2022-12-13 21:37:20,019 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 57 states to 57 states and 74 transitions. [2022-12-13 21:37:20,019 INFO L240 hiAutomatonCegarLoop]: Abstraction has 57 states and 74 transitions. [2022-12-13 21:37:20,020 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-12-13 21:37:20,020 INFO L428 stractBuchiCegarLoop]: Abstraction has 57 states and 74 transitions. [2022-12-13 21:37:20,020 INFO L335 stractBuchiCegarLoop]: ======== Iteration 4 ============ [2022-12-13 21:37:20,020 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 57 states and 74 transitions. [2022-12-13 21:37:20,021 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 11 [2022-12-13 21:37:20,021 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-12-13 21:37:20,021 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-12-13 21:37:20,022 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [4, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1] [2022-12-13 21:37:20,022 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [4, 3, 2, 2, 2, 2, 2, 1, 1] [2022-12-13 21:37:20,022 INFO L748 eck$LassoCheckResult]: Stem: 848#$Ultimate##0 assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int(48, 1, 0, 1);call write~init~int(0, 1, 1, 1);call #Ultimate.allocInit(15, 2);call #Ultimate.allocInit(12, 3); 849#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet6#1, main_#t~ret7#1, main_~x~0#1, main_~result~0#1;main_~x~0#1 := main_#t~nondet6#1;havoc main_#t~nondet6#1; 844#L28 call main_#t~ret7#1 := f91(main_~x~0#1);< 847#$Ultimate##0 ~x := #in~x; 871#L18 assume !(~x > 100); 864#L21 call #t~ret4 := f91(11 + ~x);< 866#$Ultimate##0 ~x := #in~x; 868#L18 assume !(~x > 100); 863#L21 call #t~ret4 := f91(11 + ~x);< 867#$Ultimate##0 ~x := #in~x; 870#L18 assume ~x > 100;#res := ~x - 10; 869#f91FINAL assume true; 865#f91EXIT >#27#return; 838#L21-1 call #t~ret5 := f91(#t~ret4);< 837#$Ultimate##0 ~x := #in~x; 839#L18 assume ~x > 100;#res := ~x - 10; 856#f91FINAL assume true; 884#f91EXIT >#29#return; 833#L21-2 #res := #t~ret5;havoc #t~ret4;havoc #t~ret5; 883#f91FINAL assume true; 882#f91EXIT >#27#return; 832#L21-1 call #t~ret5 := f91(#t~ret4);< 845#$Ultimate##0 [2022-12-13 21:37:20,022 INFO L750 eck$LassoCheckResult]: Loop: 845#$Ultimate##0 ~x := #in~x; 874#L18 assume !(~x > 100); 841#L21 call #t~ret4 := f91(11 + ~x);< 840#$Ultimate##0 ~x := #in~x; 843#L18 assume !(~x > 100); 842#L21 call #t~ret4 := f91(11 + ~x);< 859#$Ultimate##0 ~x := #in~x; 880#L18 assume ~x > 100;#res := ~x - 10; 878#f91FINAL assume true; 876#f91EXIT >#27#return; 851#L21-1 call #t~ret5 := f91(#t~ret4);< 875#$Ultimate##0 ~x := #in~x; 872#L18 assume ~x > 100;#res := ~x - 10; 873#f91FINAL assume true; 885#f91EXIT >#29#return; 833#L21-2 #res := #t~ret5;havoc #t~ret4;havoc #t~ret5; 883#f91FINAL assume true; 882#f91EXIT >#27#return; 831#L21-1 call #t~ret5 := f91(#t~ret4);< 845#$Ultimate##0 [2022-12-13 21:37:20,022 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 21:37:20,022 INFO L85 PathProgramCache]: Analyzing trace with hash -1708035509, now seen corresponding path program 1 times [2022-12-13 21:37:20,023 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 21:37:20,023 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [436285488] [2022-12-13 21:37:20,023 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 21:37:20,023 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 21:37:20,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 21:37:20,029 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-12-13 21:37:20,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 21:37:20,035 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-12-13 21:37:20,036 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 21:37:20,036 INFO L85 PathProgramCache]: Analyzing trace with hash 1732488063, now seen corresponding path program 1 times [2022-12-13 21:37:20,036 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 21:37:20,036 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [557816173] [2022-12-13 21:37:20,036 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 21:37:20,036 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 21:37:20,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 21:37:20,041 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-12-13 21:37:20,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 21:37:20,045 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-12-13 21:37:20,046 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 21:37:20,046 INFO L85 PathProgramCache]: Analyzing trace with hash -1682902795, now seen corresponding path program 2 times [2022-12-13 21:37:20,046 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 21:37:20,046 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1914413913] [2022-12-13 21:37:20,046 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 21:37:20,046 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 21:37:20,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:37:20,109 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2022-12-13 21:37:20,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:37:20,133 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-12-13 21:37:20,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:37:20,136 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-12-13 21:37:20,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:37:20,144 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2022-12-13 21:37:20,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:37:20,189 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-12-13 21:37:20,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:37:20,195 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-12-13 21:37:20,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:37:20,198 INFO L134 CoverageAnalysis]: Checked inductivity of 99 backedges. 31 proven. 23 refuted. 0 times theorem prover too weak. 45 trivial. 0 not checked. [2022-12-13 21:37:20,198 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 21:37:20,198 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1914413913] [2022-12-13 21:37:20,198 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1914413913] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-13 21:37:20,199 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1045060261] [2022-12-13 21:37:20,199 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-12-13 21:37:20,199 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 21:37:20,199 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ef07b5f-c816-4b19-8646-8a98ec5aac27/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 21:37:20,200 INFO L229 MonitoredProcess]: Starting monitored process 21 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ef07b5f-c816-4b19-8646-8a98ec5aac27/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-13 21:37:20,201 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ef07b5f-c816-4b19-8646-8a98ec5aac27/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Waiting until timeout for monitored process [2022-12-13 21:37:20,236 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-12-13 21:37:20,236 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-12-13 21:37:20,237 INFO L263 TraceCheckSpWp]: Trace formula consists of 116 conjuncts, 10 conjunts are in the unsatisfiable core [2022-12-13 21:37:20,239 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 21:37:20,271 INFO L134 CoverageAnalysis]: Checked inductivity of 99 backedges. 31 proven. 23 refuted. 0 times theorem prover too weak. 45 trivial. 0 not checked. [2022-12-13 21:37:20,271 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-13 21:37:20,430 INFO L134 CoverageAnalysis]: Checked inductivity of 99 backedges. 31 proven. 23 refuted. 0 times theorem prover too weak. 45 trivial. 0 not checked. [2022-12-13 21:37:20,431 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1045060261] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-13 21:37:20,431 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-12-13 21:37:20,431 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 9, 9] total 17 [2022-12-13 21:37:20,431 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [923996413] [2022-12-13 21:37:20,431 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-12-13 21:37:20,585 INFO L210 LassoAnalysis]: Preferences: [2022-12-13 21:37:20,585 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-12-13 21:37:20,585 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-12-13 21:37:20,585 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-12-13 21:37:20,585 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2022-12-13 21:37:20,585 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-12-13 21:37:20,585 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-12-13 21:37:20,585 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-12-13 21:37:20,586 INFO L133 ssoRankerPreferences]: Filename of dumped script: McCarthy91-2.c_Iteration4_Loop [2022-12-13 21:37:20,586 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-12-13 21:37:20,586 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-12-13 21:37:20,586 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-12-13 21:37:20,591 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-12-13 21:37:20,593 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-12-13 21:37:20,594 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-12-13 21:37:20,596 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-12-13 21:37:20,612 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-12-13 21:37:20,612 INFO L404 LassoAnalysis]: Checking for nontermination... [2022-12-13 21:37:20,612 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-12-13 21:37:20,612 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ef07b5f-c816-4b19-8646-8a98ec5aac27/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 21:37:20,613 INFO L229 MonitoredProcess]: Starting monitored process 22 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ef07b5f-c816-4b19-8646-8a98ec5aac27/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-12-13 21:37:20,614 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ef07b5f-c816-4b19-8646-8a98ec5aac27/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (22)] Waiting until timeout for monitored process [2022-12-13 21:37:20,615 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-12-13 21:37:20,616 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-12-13 21:37:20,629 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ef07b5f-c816-4b19-8646-8a98ec5aac27/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (22)] Ended with exit code 0 [2022-12-13 21:37:20,629 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-12-13 21:37:20,629 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ef07b5f-c816-4b19-8646-8a98ec5aac27/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 21:37:20,630 INFO L229 MonitoredProcess]: Starting monitored process 23 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ef07b5f-c816-4b19-8646-8a98ec5aac27/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-12-13 21:37:20,631 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ef07b5f-c816-4b19-8646-8a98ec5aac27/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (23)] Waiting until timeout for monitored process [2022-12-13 21:37:20,632 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2022-12-13 21:37:20,632 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-12-13 21:37:20,778 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2022-12-13 21:37:20,781 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ef07b5f-c816-4b19-8646-8a98ec5aac27/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (23)] Forceful destruction successful, exit code 0 [2022-12-13 21:37:20,781 INFO L210 LassoAnalysis]: Preferences: [2022-12-13 21:37:20,781 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-12-13 21:37:20,781 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-12-13 21:37:20,781 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-12-13 21:37:20,781 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2022-12-13 21:37:20,781 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-12-13 21:37:20,781 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-12-13 21:37:20,781 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-12-13 21:37:20,781 INFO L133 ssoRankerPreferences]: Filename of dumped script: McCarthy91-2.c_Iteration4_Loop [2022-12-13 21:37:20,781 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-12-13 21:37:20,781 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-12-13 21:37:20,782 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-12-13 21:37:20,786 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-12-13 21:37:20,788 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-12-13 21:37:20,789 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-12-13 21:37:20,790 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-12-13 21:37:20,804 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-12-13 21:37:20,804 INFO L490 LassoAnalysis]: Using template 'affine'. [2022-12-13 21:37:20,804 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-12-13 21:37:20,804 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ef07b5f-c816-4b19-8646-8a98ec5aac27/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 21:37:20,805 INFO L229 MonitoredProcess]: Starting monitored process 24 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ef07b5f-c816-4b19-8646-8a98ec5aac27/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-12-13 21:37:20,811 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ef07b5f-c816-4b19-8646-8a98ec5aac27/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (24)] Waiting until timeout for monitored process [2022-12-13 21:37:20,811 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2022-12-13 21:37:20,821 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-12-13 21:37:20,821 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-12-13 21:37:20,821 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-12-13 21:37:20,821 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-12-13 21:37:20,822 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-12-13 21:37:20,822 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-12-13 21:37:20,822 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-12-13 21:37:20,824 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2022-12-13 21:37:20,826 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2022-12-13 21:37:20,826 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. [2022-12-13 21:37:20,826 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-12-13 21:37:20,826 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ef07b5f-c816-4b19-8646-8a98ec5aac27/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 21:37:20,827 INFO L229 MonitoredProcess]: Starting monitored process 25 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ef07b5f-c816-4b19-8646-8a98ec5aac27/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-12-13 21:37:20,828 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ef07b5f-c816-4b19-8646-8a98ec5aac27/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (25)] Waiting until timeout for monitored process [2022-12-13 21:37:20,829 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2022-12-13 21:37:20,829 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2022-12-13 21:37:20,829 INFO L513 LassoAnalysis]: Proved termination. [2022-12-13 21:37:20,829 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(f91_#in~x) = -1*f91_#in~x + 90 Supporting invariants [] [2022-12-13 21:37:20,832 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ef07b5f-c816-4b19-8646-8a98ec5aac27/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (24)] Ended with exit code 0 [2022-12-13 21:37:20,832 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2022-12-13 21:37:20,840 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 21:37:20,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:37:20,861 INFO L263 TraceCheckSpWp]: Trace formula consists of 213 conjuncts, 12 conjunts are in the unsatisfiable core [2022-12-13 21:37:20,862 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 21:37:20,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:37:21,001 INFO L263 TraceCheckSpWp]: Trace formula consists of 157 conjuncts, 25 conjunts are in the unsatisfiable core [2022-12-13 21:37:21,002 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 21:37:21,158 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 4 proven. 8 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2022-12-13 21:37:21,159 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 [2022-12-13 21:37:21,159 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) [2022-12-13 21:37:21,404 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. [2022-12-13 21:37:21,404 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 [2022-12-13 21:37:21,405 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) [2022-12-13 21:37:21,405 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 34 transitions. [2022-12-13 21:37:21,405 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 14 states and 34 transitions. Stem has 22 letters. Loop has 19 letters. [2022-12-13 21:37:21,406 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-12-13 21:37:21,406 INFO L681 stractBuchiCegarLoop]: Bad chosen interpolant automaton: word not accepted [2022-12-13 21:37:21,413 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 21:37:21,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:37:21,437 INFO L263 TraceCheckSpWp]: Trace formula consists of 213 conjuncts, 12 conjunts are in the unsatisfiable core [2022-12-13 21:37:21,438 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 21:37:21,500 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ef07b5f-c816-4b19-8646-8a98ec5aac27/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (25)] Forceful destruction successful, exit code 0 [2022-12-13 21:37:21,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:37:21,570 INFO L263 TraceCheckSpWp]: Trace formula consists of 157 conjuncts, 25 conjunts are in the unsatisfiable core [2022-12-13 21:37:21,571 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 21:37:21,700 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 4 proven. 8 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2022-12-13 21:37:21,701 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and with honda bouncer for loop.2 stem predicates 10 loop predicates [2022-12-13 21:37:21,701 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) [2022-12-13 21:37:21,926 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. [2022-12-13 21:37:21,927 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 [2022-12-13 21:37:21,927 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) [2022-12-13 21:37:21,928 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 34 transitions. [2022-12-13 21:37:21,928 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 14 states and 34 transitions. Stem has 22 letters. Loop has 19 letters. [2022-12-13 21:37:21,928 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-12-13 21:37:21,928 INFO L681 stractBuchiCegarLoop]: Bad chosen interpolant automaton: word not accepted [2022-12-13 21:37:21,933 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 21:37:21,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:37:21,950 INFO L263 TraceCheckSpWp]: Trace formula consists of 213 conjuncts, 12 conjunts are in the unsatisfiable core [2022-12-13 21:37:21,951 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 21:37:22,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:37:22,044 INFO L263 TraceCheckSpWp]: Trace formula consists of 157 conjuncts, 20 conjunts are in the unsatisfiable core [2022-12-13 21:37:22,045 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 21:37:22,139 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 6 proven. 10 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-12-13 21:37:22,139 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 [2022-12-13 21:37:22,139 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) [2022-12-13 21:37:22,491 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. [2022-12-13 21:37:22,491 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 [2022-12-13 21:37:22,492 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) [2022-12-13 21:37:22,492 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 49 transitions. [2022-12-13 21:37:22,493 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 18 states and 49 transitions. Stem has 22 letters. Loop has 19 letters. [2022-12-13 21:37:22,493 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-12-13 21:37:22,493 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 18 states and 49 transitions. Stem has 41 letters. Loop has 19 letters. [2022-12-13 21:37:22,494 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-12-13 21:37:22,494 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 18 states and 49 transitions. Stem has 22 letters. Loop has 38 letters. [2022-12-13 21:37:22,496 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-12-13 21:37:22,496 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 325 states and 417 transitions. [2022-12-13 21:37:22,502 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 25 [2022-12-13 21:37:22,506 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 325 states to 169 states and 230 transitions. [2022-12-13 21:37:22,506 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 81 [2022-12-13 21:37:22,507 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 90 [2022-12-13 21:37:22,507 INFO L73 IsDeterministic]: Start isDeterministic. Operand 169 states and 230 transitions. [2022-12-13 21:37:22,507 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2022-12-13 21:37:22,507 INFO L218 hiAutomatonCegarLoop]: Abstraction has 169 states and 230 transitions. [2022-12-13 21:37:22,507 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 169 states and 230 transitions. [2022-12-13 21:37:22,516 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 169 to 140. [2022-12-13 21:37:22,516 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) [2022-12-13 21:37:22,518 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 140 states to 140 states and 178 transitions. [2022-12-13 21:37:22,518 INFO L240 hiAutomatonCegarLoop]: Abstraction has 140 states and 178 transitions. [2022-12-13 21:37:22,518 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 21:37:22,518 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-12-13 21:37:22,518 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=44, Invalid=228, Unknown=0, NotChecked=0, Total=272 [2022-12-13 21:37:22,519 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) [2022-12-13 21:37:22,638 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 21:37:22,638 INFO L93 Difference]: Finished difference Result 138 states and 163 transitions. [2022-12-13 21:37:22,638 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 138 states and 163 transitions. [2022-12-13 21:37:22,641 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2022-12-13 21:37:22,642 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 138 states to 101 states and 121 transitions. [2022-12-13 21:37:22,643 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 73 [2022-12-13 21:37:22,643 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 73 [2022-12-13 21:37:22,643 INFO L73 IsDeterministic]: Start isDeterministic. Operand 101 states and 121 transitions. [2022-12-13 21:37:22,643 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2022-12-13 21:37:22,643 INFO L218 hiAutomatonCegarLoop]: Abstraction has 101 states and 121 transitions. [2022-12-13 21:37:22,643 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 101 states and 121 transitions. [2022-12-13 21:37:22,649 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 101 to 97. [2022-12-13 21:37:22,649 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) [2022-12-13 21:37:22,650 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 97 states to 97 states and 117 transitions. [2022-12-13 21:37:22,650 INFO L240 hiAutomatonCegarLoop]: Abstraction has 97 states and 117 transitions. [2022-12-13 21:37:22,651 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-12-13 21:37:22,651 INFO L428 stractBuchiCegarLoop]: Abstraction has 97 states and 117 transitions. [2022-12-13 21:37:22,651 INFO L335 stractBuchiCegarLoop]: ======== Iteration 5 ============ [2022-12-13 21:37:22,651 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 97 states and 117 transitions. [2022-12-13 21:37:22,652 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2022-12-13 21:37:22,652 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-12-13 21:37:22,652 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-12-13 21:37:22,653 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [8, 5, 4, 4, 4, 4, 4, 1, 1, 1, 1, 1] [2022-12-13 21:37:22,653 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [2, 1, 1, 1, 1, 1, 1] [2022-12-13 21:37:22,653 INFO L748 eck$LassoCheckResult]: Stem: 2776#$Ultimate##0 assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int(48, 1, 0, 1);call write~init~int(0, 1, 1, 1);call #Ultimate.allocInit(15, 2);call #Ultimate.allocInit(12, 3); 2777#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; 2774#L28 call main_#t~ret7#1 := f91(main_~x~0#1);< 2775#$Ultimate##0 ~x := #in~x; 2788#L18 assume !(~x > 100); 2789#L21 call #t~ret4 := f91(11 + ~x);< 2793#$Ultimate##0 ~x := #in~x; 2806#L18 assume !(~x > 100); 2800#L21 call #t~ret4 := f91(11 + ~x);< 2804#$Ultimate##0 ~x := #in~x; 2807#L18 assume ~x > 100;#res := ~x - 10; 2805#f91FINAL assume true; 2803#f91EXIT >#27#return; 2799#L21-1 call #t~ret5 := f91(#t~ret4);< 2801#$Ultimate##0 ~x := #in~x; 2832#L18 assume ~x > 100;#res := ~x - 10; 2820#f91FINAL assume true; 2819#f91EXIT >#29#return; 2817#L21-2 #res := #t~ret5;havoc #t~ret4;havoc #t~ret5; 2816#f91FINAL assume true; 2815#f91EXIT >#27#return; 2808#L21-1 call #t~ret5 := f91(#t~ret4);< 2814#$Ultimate##0 ~x := #in~x; 2812#L18 assume !(~x > 100); 2769#L21 call #t~ret4 := f91(11 + ~x);< 2810#$Ultimate##0 ~x := #in~x; 2826#L18 assume ~x > 100;#res := ~x - 10; 2825#f91FINAL assume true; 2824#f91EXIT >#27#return; 2791#L21-1 call #t~ret5 := f91(#t~ret4);< 2823#$Ultimate##0 ~x := #in~x; 2836#L18 assume !(~x > 100); 2790#L21 call #t~ret4 := f91(11 + ~x);< 2792#$Ultimate##0 ~x := #in~x; 2847#L18 assume ~x > 100;#res := ~x - 10; 2846#f91FINAL assume true; 2841#f91EXIT >#27#return; 2779#L21-1 call #t~ret5 := f91(#t~ret4);< 2840#$Ultimate##0 [2022-12-13 21:37:22,654 INFO L750 eck$LassoCheckResult]: Loop: 2840#$Ultimate##0 ~x := #in~x; 2844#L18 assume !(~x > 100); 2842#L21 call #t~ret4 := f91(11 + ~x);< 2792#$Ultimate##0 ~x := #in~x; 2847#L18 assume ~x > 100;#res := ~x - 10; 2846#f91FINAL assume true; 2841#f91EXIT >#27#return; 2780#L21-1 call #t~ret5 := f91(#t~ret4);< 2840#$Ultimate##0 [2022-12-13 21:37:22,654 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 21:37:22,654 INFO L85 PathProgramCache]: Analyzing trace with hash 1117842761, now seen corresponding path program 3 times [2022-12-13 21:37:22,654 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 21:37:22,654 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1978425893] [2022-12-13 21:37:22,654 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 21:37:22,654 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 21:37:22,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 21:37:22,664 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-12-13 21:37:22,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 21:37:22,675 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-12-13 21:37:22,676 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 21:37:22,676 INFO L85 PathProgramCache]: Analyzing trace with hash -993632512, now seen corresponding path program 2 times [2022-12-13 21:37:22,676 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 21:37:22,676 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [371437446] [2022-12-13 21:37:22,676 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 21:37:22,676 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 21:37:22,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 21:37:22,679 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-12-13 21:37:22,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 21:37:22,682 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-12-13 21:37:22,682 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 21:37:22,682 INFO L85 PathProgramCache]: Analyzing trace with hash 1969849416, now seen corresponding path program 4 times [2022-12-13 21:37:22,683 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 21:37:22,683 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [314658293] [2022-12-13 21:37:22,683 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 21:37:22,683 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 21:37:22,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 21:37:22,692 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-12-13 21:37:22,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 21:37:22,704 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-12-13 21:37:22,757 INFO L210 LassoAnalysis]: Preferences: [2022-12-13 21:37:22,757 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-12-13 21:37:22,757 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-12-13 21:37:22,757 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-12-13 21:37:22,757 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2022-12-13 21:37:22,757 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-12-13 21:37:22,757 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-12-13 21:37:22,757 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-12-13 21:37:22,757 INFO L133 ssoRankerPreferences]: Filename of dumped script: McCarthy91-2.c_Iteration5_Loop [2022-12-13 21:37:22,757 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-12-13 21:37:22,757 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-12-13 21:37:22,758 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-12-13 21:37:22,759 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-12-13 21:37:22,760 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-12-13 21:37:22,761 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-12-13 21:37:22,766 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-12-13 21:37:22,781 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-12-13 21:37:22,781 INFO L404 LassoAnalysis]: Checking for nontermination... [2022-12-13 21:37:22,781 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-12-13 21:37:22,781 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ef07b5f-c816-4b19-8646-8a98ec5aac27/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 21:37:22,782 INFO L229 MonitoredProcess]: Starting monitored process 26 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ef07b5f-c816-4b19-8646-8a98ec5aac27/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-12-13 21:37:22,783 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ef07b5f-c816-4b19-8646-8a98ec5aac27/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (26)] Waiting until timeout for monitored process [2022-12-13 21:37:22,784 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-12-13 21:37:22,784 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-12-13 21:37:22,795 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2022-12-13 21:37:22,796 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {f91_#t~ret4=0} Honda state: {f91_#t~ret4=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2022-12-13 21:37:22,798 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ef07b5f-c816-4b19-8646-8a98ec5aac27/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (26)] Ended with exit code 0 [2022-12-13 21:37:22,798 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-12-13 21:37:22,798 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ef07b5f-c816-4b19-8646-8a98ec5aac27/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 21:37:22,799 INFO L229 MonitoredProcess]: Starting monitored process 27 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ef07b5f-c816-4b19-8646-8a98ec5aac27/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-12-13 21:37:22,800 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ef07b5f-c816-4b19-8646-8a98ec5aac27/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (27)] Waiting until timeout for monitored process [2022-12-13 21:37:22,801 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-12-13 21:37:22,801 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-12-13 21:37:22,812 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2022-12-13 21:37:22,812 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {f91_#res=0} Honda state: {f91_#res=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2022-12-13 21:37:22,814 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ef07b5f-c816-4b19-8646-8a98ec5aac27/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (27)] Ended with exit code 0 [2022-12-13 21:37:22,815 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-12-13 21:37:22,815 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ef07b5f-c816-4b19-8646-8a98ec5aac27/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 21:37:22,815 INFO L229 MonitoredProcess]: Starting monitored process 28 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ef07b5f-c816-4b19-8646-8a98ec5aac27/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-12-13 21:37:22,816 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ef07b5f-c816-4b19-8646-8a98ec5aac27/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (28)] Waiting until timeout for monitored process [2022-12-13 21:37:22,818 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-12-13 21:37:22,818 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-12-13 21:37:22,829 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2022-12-13 21:37:22,829 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {f91_~x=0} Honda state: {f91_~x=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2022-12-13 21:37:22,832 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ef07b5f-c816-4b19-8646-8a98ec5aac27/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (28)] Forceful destruction successful, exit code 0 [2022-12-13 21:37:22,832 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-12-13 21:37:22,833 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ef07b5f-c816-4b19-8646-8a98ec5aac27/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 21:37:22,833 INFO L229 MonitoredProcess]: Starting monitored process 29 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ef07b5f-c816-4b19-8646-8a98ec5aac27/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-12-13 21:37:22,834 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ef07b5f-c816-4b19-8646-8a98ec5aac27/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (29)] Waiting until timeout for monitored process [2022-12-13 21:37:22,835 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-12-13 21:37:22,835 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-12-13 21:37:22,849 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ef07b5f-c816-4b19-8646-8a98ec5aac27/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (29)] Forceful destruction successful, exit code 0 [2022-12-13 21:37:22,849 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-12-13 21:37:22,849 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ef07b5f-c816-4b19-8646-8a98ec5aac27/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 21:37:22,850 INFO L229 MonitoredProcess]: Starting monitored process 30 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ef07b5f-c816-4b19-8646-8a98ec5aac27/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-12-13 21:37:22,850 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ef07b5f-c816-4b19-8646-8a98ec5aac27/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (30)] Waiting until timeout for monitored process [2022-12-13 21:37:22,852 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2022-12-13 21:37:22,852 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-12-13 21:37:22,871 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2022-12-13 21:37:22,874 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ef07b5f-c816-4b19-8646-8a98ec5aac27/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (30)] Ended with exit code 0 [2022-12-13 21:37:22,874 INFO L210 LassoAnalysis]: Preferences: [2022-12-13 21:37:22,874 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-12-13 21:37:22,874 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-12-13 21:37:22,874 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-12-13 21:37:22,874 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2022-12-13 21:37:22,874 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-12-13 21:37:22,874 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-12-13 21:37:22,874 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-12-13 21:37:22,874 INFO L133 ssoRankerPreferences]: Filename of dumped script: McCarthy91-2.c_Iteration5_Loop [2022-12-13 21:37:22,874 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-12-13 21:37:22,874 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-12-13 21:37:22,875 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-12-13 21:37:22,877 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-12-13 21:37:22,878 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-12-13 21:37:22,879 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-12-13 21:37:22,883 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-12-13 21:37:22,905 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-12-13 21:37:22,905 INFO L490 LassoAnalysis]: Using template 'affine'. [2022-12-13 21:37:22,905 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-12-13 21:37:22,906 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ef07b5f-c816-4b19-8646-8a98ec5aac27/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 21:37:22,906 INFO L229 MonitoredProcess]: Starting monitored process 31 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ef07b5f-c816-4b19-8646-8a98ec5aac27/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-12-13 21:37:22,907 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ef07b5f-c816-4b19-8646-8a98ec5aac27/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (31)] Waiting until timeout for monitored process [2022-12-13 21:37:22,908 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2022-12-13 21:37:22,918 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-12-13 21:37:22,919 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-12-13 21:37:22,919 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-12-13 21:37:22,919 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-12-13 21:37:22,919 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-12-13 21:37:22,919 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-12-13 21:37:22,919 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-12-13 21:37:22,920 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-12-13 21:37:22,923 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ef07b5f-c816-4b19-8646-8a98ec5aac27/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (31)] Ended with exit code 0 [2022-12-13 21:37:22,923 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-12-13 21:37:22,923 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ef07b5f-c816-4b19-8646-8a98ec5aac27/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 21:37:22,924 INFO L229 MonitoredProcess]: Starting monitored process 32 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ef07b5f-c816-4b19-8646-8a98ec5aac27/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-12-13 21:37:22,924 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ef07b5f-c816-4b19-8646-8a98ec5aac27/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (32)] Waiting until timeout for monitored process [2022-12-13 21:37:22,926 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2022-12-13 21:37:22,936 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-12-13 21:37:22,936 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-12-13 21:37:22,936 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-12-13 21:37:22,936 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-12-13 21:37:22,936 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-12-13 21:37:22,936 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-12-13 21:37:22,937 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-12-13 21:37:22,938 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-12-13 21:37:22,940 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ef07b5f-c816-4b19-8646-8a98ec5aac27/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (32)] Forceful destruction successful, exit code 0 [2022-12-13 21:37:22,940 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-12-13 21:37:22,940 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ef07b5f-c816-4b19-8646-8a98ec5aac27/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 21:37:22,941 INFO L229 MonitoredProcess]: Starting monitored process 33 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ef07b5f-c816-4b19-8646-8a98ec5aac27/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-12-13 21:37:22,942 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ef07b5f-c816-4b19-8646-8a98ec5aac27/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (33)] Waiting until timeout for monitored process [2022-12-13 21:37:22,943 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2022-12-13 21:37:22,953 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-12-13 21:37:22,953 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-12-13 21:37:22,953 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-12-13 21:37:22,953 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-12-13 21:37:22,954 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-12-13 21:37:22,954 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-12-13 21:37:22,954 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-12-13 21:37:22,955 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-12-13 21:37:22,957 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ef07b5f-c816-4b19-8646-8a98ec5aac27/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (33)] Ended with exit code 0 [2022-12-13 21:37:22,958 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-12-13 21:37:22,958 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ef07b5f-c816-4b19-8646-8a98ec5aac27/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 21:37:22,958 INFO L229 MonitoredProcess]: Starting monitored process 34 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ef07b5f-c816-4b19-8646-8a98ec5aac27/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-12-13 21:37:22,959 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ef07b5f-c816-4b19-8646-8a98ec5aac27/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (34)] Waiting until timeout for monitored process [2022-12-13 21:37:22,961 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2022-12-13 21:37:22,970 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-12-13 21:37:22,971 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-12-13 21:37:22,971 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-12-13 21:37:22,971 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-12-13 21:37:22,971 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-12-13 21:37:22,972 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-12-13 21:37:22,972 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-12-13 21:37:22,974 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2022-12-13 21:37:22,977 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2022-12-13 21:37:22,977 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. [2022-12-13 21:37:22,977 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-12-13 21:37:22,977 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ef07b5f-c816-4b19-8646-8a98ec5aac27/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 21:37:22,978 INFO L229 MonitoredProcess]: Starting monitored process 35 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ef07b5f-c816-4b19-8646-8a98ec5aac27/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-12-13 21:37:22,979 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ef07b5f-c816-4b19-8646-8a98ec5aac27/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (35)] Waiting until timeout for monitored process [2022-12-13 21:37:22,980 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2022-12-13 21:37:22,980 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2022-12-13 21:37:22,980 INFO L513 LassoAnalysis]: Proved termination. [2022-12-13 21:37:22,980 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(f91_#in~x) = -2*f91_#in~x + 201 Supporting invariants [] [2022-12-13 21:37:22,982 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ef07b5f-c816-4b19-8646-8a98ec5aac27/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (34)] Forceful destruction successful, exit code 0 [2022-12-13 21:37:22,983 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2022-12-13 21:37:22,991 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 21:37:23,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:37:23,036 INFO L263 TraceCheckSpWp]: Trace formula consists of 363 conjuncts, 20 conjunts are in the unsatisfiable core [2022-12-13 21:37:23,037 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 21:37:23,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:37:23,196 INFO L263 TraceCheckSpWp]: Trace formula consists of 77 conjuncts, 13 conjunts are in the unsatisfiable core [2022-12-13 21:37:23,197 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 21:37:23,259 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 21:37:23,260 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 [2022-12-13 21:37:23,260 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) [2022-12-13 21:37:23,314 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. [2022-12-13 21:37:23,315 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 [2022-12-13 21:37:23,315 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) [2022-12-13 21:37:23,315 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 15 transitions. [2022-12-13 21:37:23,315 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 15 transitions. Stem has 38 letters. Loop has 8 letters. [2022-12-13 21:37:23,316 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-12-13 21:37:23,316 INFO L681 stractBuchiCegarLoop]: Bad chosen interpolant automaton: word not accepted [2022-12-13 21:37:23,323 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 21:37:23,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:37:23,357 INFO L263 TraceCheckSpWp]: Trace formula consists of 363 conjuncts, 20 conjunts are in the unsatisfiable core [2022-12-13 21:37:23,358 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 21:37:23,434 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ef07b5f-c816-4b19-8646-8a98ec5aac27/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (35)] Ended with exit code 0 [2022-12-13 21:37:23,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:37:23,497 INFO L263 TraceCheckSpWp]: Trace formula consists of 77 conjuncts, 13 conjunts are in the unsatisfiable core [2022-12-13 21:37:23,498 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 21:37:23,548 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 21:37:23,548 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 [2022-12-13 21:37:23,549 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) [2022-12-13 21:37:23,670 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. [2022-12-13 21:37:23,670 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 [2022-12-13 21:37:23,671 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) [2022-12-13 21:37:23,671 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 20 transitions. [2022-12-13 21:37:23,671 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 9 states and 20 transitions. Stem has 38 letters. Loop has 8 letters. [2022-12-13 21:37:23,671 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-12-13 21:37:23,671 INFO L681 stractBuchiCegarLoop]: Bad chosen interpolant automaton: word not accepted [2022-12-13 21:37:23,677 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 21:37:23,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:37:23,712 INFO L263 TraceCheckSpWp]: Trace formula consists of 363 conjuncts, 20 conjunts are in the unsatisfiable core [2022-12-13 21:37:23,713 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 21:37:23,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:37:23,848 INFO L263 TraceCheckSpWp]: Trace formula consists of 77 conjuncts, 13 conjunts are in the unsatisfiable core [2022-12-13 21:37:23,849 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 21:37:23,900 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 21:37:23,900 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 [2022-12-13 21:37:23,901 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) [2022-12-13 21:37:23,963 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. [2022-12-13 21:37:23,963 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 [2022-12-13 21:37:23,964 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) [2022-12-13 21:37:23,964 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 18 transitions. [2022-12-13 21:37:23,964 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 18 transitions. Stem has 38 letters. Loop has 8 letters. [2022-12-13 21:37:23,965 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-12-13 21:37:23,965 INFO L681 stractBuchiCegarLoop]: Bad chosen interpolant automaton: word not accepted [2022-12-13 21:37:23,971 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 21:37:24,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:37:24,004 INFO L263 TraceCheckSpWp]: Trace formula consists of 363 conjuncts, 20 conjunts are in the unsatisfiable core [2022-12-13 21:37:24,005 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 21:37:24,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:37:24,142 INFO L263 TraceCheckSpWp]: Trace formula consists of 77 conjuncts, 13 conjunts are in the unsatisfiable core [2022-12-13 21:37:24,142 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 21:37:24,195 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 21:37:24,196 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 [2022-12-13 21:37:24,196 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) [2022-12-13 21:37:24,386 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. [2022-12-13 21:37:24,386 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 [2022-12-13 21:37:24,387 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) [2022-12-13 21:37:24,387 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 27 transitions. [2022-12-13 21:37:24,387 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 11 states and 27 transitions. Stem has 38 letters. Loop has 8 letters. [2022-12-13 21:37:24,387 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-12-13 21:37:24,387 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 11 states and 27 transitions. Stem has 46 letters. Loop has 8 letters. [2022-12-13 21:37:24,388 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-12-13 21:37:24,388 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 11 states and 27 transitions. Stem has 38 letters. Loop has 16 letters. [2022-12-13 21:37:24,388 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-12-13 21:37:24,388 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 182 states and 209 transitions. [2022-12-13 21:37:24,391 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2022-12-13 21:37:24,391 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 182 states to 0 states and 0 transitions. [2022-12-13 21:37:24,391 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2022-12-13 21:37:24,391 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2022-12-13 21:37:24,391 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2022-12-13 21:37:24,391 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 21:37:24,391 INFO L218 hiAutomatonCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-12-13 21:37:24,391 INFO L240 hiAutomatonCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-12-13 21:37:24,391 INFO L428 stractBuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-12-13 21:37:24,391 INFO L335 stractBuchiCegarLoop]: ======== Iteration 6 ============ [2022-12-13 21:37:24,391 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2022-12-13 21:37:24,391 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2022-12-13 21:37:24,391 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2022-12-13 21:37:24,397 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 13.12 09:37:24 BoogieIcfgContainer [2022-12-13 21:37:24,397 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2022-12-13 21:37:24,397 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-12-13 21:37:24,397 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-12-13 21:37:24,398 INFO L275 PluginConnector]: Witness Printer initialized [2022-12-13 21:37:24,398 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 09:36:52" (3/4) ... [2022-12-13 21:37:24,401 INFO L140 WitnessPrinter]: No result that supports witness generation found [2022-12-13 21:37:24,401 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-12-13 21:37:24,401 INFO L158 Benchmark]: Toolchain (without parser) took 31984.76ms. Allocated memory was 140.5MB in the beginning and 169.9MB in the end (delta: 29.4MB). Free memory was 105.4MB in the beginning and 57.0MB in the end (delta: 48.4MB). Peak memory consumption was 80.0MB. Max. memory is 16.1GB. [2022-12-13 21:37:24,401 INFO L158 Benchmark]: CDTParser took 0.16ms. Allocated memory is still 140.5MB. Free memory is still 84.0MB. There was no memory consumed. Max. memory is 16.1GB. [2022-12-13 21:37:24,402 INFO L158 Benchmark]: CACSL2BoogieTranslator took 145.35ms. Allocated memory is still 140.5MB. Free memory was 105.4MB in the beginning and 95.5MB in the end (delta: 9.8MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2022-12-13 21:37:24,402 INFO L158 Benchmark]: Boogie Procedure Inliner took 21.67ms. Allocated memory is still 140.5MB. Free memory was 95.5MB in the beginning and 94.0MB in the end (delta: 1.6MB). There was no memory consumed. Max. memory is 16.1GB. [2022-12-13 21:37:24,402 INFO L158 Benchmark]: Boogie Preprocessor took 12.03ms. Allocated memory is still 140.5MB. Free memory was 93.4MB in the beginning and 92.9MB in the end (delta: 540.1kB). There was no memory consumed. Max. memory is 16.1GB. [2022-12-13 21:37:24,403 INFO L158 Benchmark]: RCFGBuilder took 186.64ms. Allocated memory is still 140.5MB. Free memory was 92.9MB in the beginning and 83.5MB in the end (delta: 9.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2022-12-13 21:37:24,403 INFO L158 Benchmark]: BuchiAutomizer took 31611.38ms. Allocated memory was 140.5MB in the beginning and 169.9MB in the end (delta: 29.4MB). Free memory was 83.5MB in the beginning and 58.0MB in the end (delta: 25.5MB). Peak memory consumption was 56.9MB. Max. memory is 16.1GB. [2022-12-13 21:37:24,403 INFO L158 Benchmark]: Witness Printer took 3.45ms. Allocated memory is still 169.9MB. Free memory was 58.0MB in the beginning and 57.0MB in the end (delta: 1.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-12-13 21:37:24,405 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.16ms. Allocated memory is still 140.5MB. Free memory is still 84.0MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 145.35ms. Allocated memory is still 140.5MB. Free memory was 105.4MB in the beginning and 95.5MB in the end (delta: 9.8MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 21.67ms. Allocated memory is still 140.5MB. Free memory was 95.5MB in the beginning and 94.0MB in the end (delta: 1.6MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 12.03ms. Allocated memory is still 140.5MB. Free memory was 93.4MB in the beginning and 92.9MB in the end (delta: 540.1kB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 186.64ms. Allocated memory is still 140.5MB. Free memory was 92.9MB in the beginning and 83.5MB in the end (delta: 9.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * BuchiAutomizer took 31611.38ms. Allocated memory was 140.5MB in the beginning and 169.9MB in the end (delta: 29.4MB). Free memory was 83.5MB in the beginning and 58.0MB in the end (delta: 25.5MB). Peak memory consumption was 56.9MB. Max. memory is 16.1GB. * Witness Printer took 3.45ms. Allocated memory is still 169.9MB. Free memory was 58.0MB in the beginning and 57.0MB 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 31.5s and 6 iterations. TraceHistogramMax:8. Analysis of lassos took 27.1s. Construction of modules took 0.4s. Büchi inclusion checks took 3.7s. Highest rank in rank-based complementation 3. Minimization of det autom 1. Minimization of nondet autom 6. Automata minimization 0.0s 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, 294 SdHoareTripleChecker+Valid, 0.5s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 278 mSDsluCounter, 395 SdHoareTripleChecker+Invalid, 0.5s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 215 mSDsCounter, 220 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 930 IncrementalHoareTripleChecker+Invalid, 1150 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 220 mSolverCounterUnsat, 180 mSDtfsCounter, 930 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: 18ms VariablesStem: 0 VariablesLoop: 0 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 0 MotzkinApplications: 2 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 7 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 3 LassoNonterminationAnalysisUnknown: 2 LassoNonterminationAnalysisTime: 25.2s InitialAbstractionConstructionTime: 0.0s - TerminationAnalysisResult: Termination proven Buchi Automizer proved that your program is terminating RESULT: Ultimate proved your program to be correct! [2022-12-13 21:37:24,417 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ef07b5f-c816-4b19-8646-8a98ec5aac27/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Forceful destruction successful, exit code 0 [2022-12-13 21:37:24,618 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ef07b5f-c816-4b19-8646-8a98ec5aac27/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE