./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/loops/invert_string-1.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 57096758 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_229f6009-413d-4580-b932-763c06d460cc/bin/uautomizer-hJ6jxDFKc3/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_229f6009-413d-4580-b932-763c06d460cc/bin/uautomizer-hJ6jxDFKc3/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_229f6009-413d-4580-b932-763c06d460cc/bin/uautomizer-hJ6jxDFKc3/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_229f6009-413d-4580-b932-763c06d460cc/bin/uautomizer-hJ6jxDFKc3/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/loops/invert_string-1.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_229f6009-413d-4580-b932-763c06d460cc/bin/uautomizer-hJ6jxDFKc3/config/svcomp-Termination-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_229f6009-413d-4580-b932-763c06d460cc/bin/uautomizer-hJ6jxDFKc3 --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 1b9a71645175fee79e6d6cd797db38ce6044ffb9 .................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.2.1-dev-5709675 [2021-10-15 19:52:15,287 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-15 19:52:15,290 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-15 19:52:15,328 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-15 19:52:15,329 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-15 19:52:15,330 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-15 19:52:15,333 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-15 19:52:15,336 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-15 19:52:15,338 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-15 19:52:15,340 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-15 19:52:15,341 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-15 19:52:15,343 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-15 19:52:15,344 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-15 19:52:15,346 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-15 19:52:15,348 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-15 19:52:15,350 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-15 19:52:15,351 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-15 19:52:15,353 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-15 19:52:15,356 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-15 19:52:15,359 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-15 19:52:15,361 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-15 19:52:15,363 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-15 19:52:15,365 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-15 19:52:15,366 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-15 19:52:15,370 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-15 19:52:15,371 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-15 19:52:15,371 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-15 19:52:15,373 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-15 19:52:15,373 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-15 19:52:15,375 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-15 19:52:15,375 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-15 19:52:15,377 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-15 19:52:15,378 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-15 19:52:15,379 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-15 19:52:15,380 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-15 19:52:15,381 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-15 19:52:15,382 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-15 19:52:15,382 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-15 19:52:15,383 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-15 19:52:15,384 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-15 19:52:15,385 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-15 19:52:15,386 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_229f6009-413d-4580-b932-763c06d460cc/bin/uautomizer-hJ6jxDFKc3/config/svcomp-Termination-32bit-Automizer_Default.epf [2021-10-15 19:52:15,417 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-15 19:52:15,417 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-15 19:52:15,418 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-10-15 19:52:15,418 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-10-15 19:52:15,419 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-10-15 19:52:15,420 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-10-15 19:52:15,420 INFO L138 SettingsManager]: * Use SBE=true [2021-10-15 19:52:15,420 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2021-10-15 19:52:15,420 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2021-10-15 19:52:15,421 INFO L138 SettingsManager]: * Use old map elimination=false [2021-10-15 19:52:15,421 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2021-10-15 19:52:15,421 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2021-10-15 19:52:15,421 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2021-10-15 19:52:15,422 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-15 19:52:15,422 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-15 19:52:15,422 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-10-15 19:52:15,422 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-15 19:52:15,423 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-15 19:52:15,423 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-15 19:52:15,423 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2021-10-15 19:52:15,423 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2021-10-15 19:52:15,424 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2021-10-15 19:52:15,424 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-15 19:52:15,424 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-15 19:52:15,424 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2021-10-15 19:52:15,425 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-15 19:52:15,425 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2021-10-15 19:52:15,425 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-15 19:52:15,425 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-10-15 19:52:15,426 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-15 19:52:15,426 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-10-15 19:52:15,426 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-15 19:52:15,427 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2021-10-15 19:52:15,428 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_229f6009-413d-4580-b932-763c06d460cc/bin/uautomizer-hJ6jxDFKc3/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_229f6009-413d-4580-b932-763c06d460cc/bin/uautomizer-hJ6jxDFKc3 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 1b9a71645175fee79e6d6cd797db38ce6044ffb9 [2021-10-15 19:52:15,700 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-15 19:52:15,725 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-15 19:52:15,728 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-15 19:52:15,730 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-15 19:52:15,731 INFO L275 PluginConnector]: CDTParser initialized [2021-10-15 19:52:15,732 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_229f6009-413d-4580-b932-763c06d460cc/bin/uautomizer-hJ6jxDFKc3/../../sv-benchmarks/c/loops/invert_string-1.c [2021-10-15 19:52:15,838 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_229f6009-413d-4580-b932-763c06d460cc/bin/uautomizer-hJ6jxDFKc3/data/640cd7338/580b9040d9d74da5ae759a203e0fcb5c/FLAG28d17f3ef [2021-10-15 19:52:16,450 INFO L306 CDTParser]: Found 1 translation units. [2021-10-15 19:52:16,451 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_229f6009-413d-4580-b932-763c06d460cc/sv-benchmarks/c/loops/invert_string-1.c [2021-10-15 19:52:16,468 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_229f6009-413d-4580-b932-763c06d460cc/bin/uautomizer-hJ6jxDFKc3/data/640cd7338/580b9040d9d74da5ae759a203e0fcb5c/FLAG28d17f3ef [2021-10-15 19:52:16,831 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_229f6009-413d-4580-b932-763c06d460cc/bin/uautomizer-hJ6jxDFKc3/data/640cd7338/580b9040d9d74da5ae759a203e0fcb5c [2021-10-15 19:52:16,834 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-15 19:52:16,836 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-15 19:52:16,839 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-15 19:52:16,839 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-15 19:52:16,843 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-15 19:52:16,844 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.10 07:52:16" (1/1) ... [2021-10-15 19:52:16,846 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4d8d1ef9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 07:52:16, skipping insertion in model container [2021-10-15 19:52:16,846 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.10 07:52:16" (1/1) ... [2021-10-15 19:52:16,855 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-15 19:52:16,875 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-15 19:52:17,076 WARN L228 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_229f6009-413d-4580-b932-763c06d460cc/sv-benchmarks/c/loops/invert_string-1.c[352,365] [2021-10-15 19:52:17,096 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-15 19:52:17,106 INFO L203 MainTranslator]: Completed pre-run [2021-10-15 19:52:17,121 WARN L228 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_229f6009-413d-4580-b932-763c06d460cc/sv-benchmarks/c/loops/invert_string-1.c[352,365] [2021-10-15 19:52:17,130 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-15 19:52:17,145 INFO L208 MainTranslator]: Completed translation [2021-10-15 19:52:17,146 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 07:52:17 WrapperNode [2021-10-15 19:52:17,146 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-15 19:52:17,147 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-15 19:52:17,147 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-15 19:52:17,148 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-15 19:52:17,157 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 07:52:17" (1/1) ... [2021-10-15 19:52:17,166 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 07:52:17" (1/1) ... [2021-10-15 19:52:17,192 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-15 19:52:17,193 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-15 19:52:17,193 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-15 19:52:17,193 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-15 19:52:17,203 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 07:52:17" (1/1) ... [2021-10-15 19:52:17,203 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 07:52:17" (1/1) ... [2021-10-15 19:52:17,206 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 07:52:17" (1/1) ... [2021-10-15 19:52:17,207 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 07:52:17" (1/1) ... [2021-10-15 19:52:17,214 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 07:52:17" (1/1) ... [2021-10-15 19:52:17,219 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 07:52:17" (1/1) ... [2021-10-15 19:52:17,221 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 07:52:17" (1/1) ... [2021-10-15 19:52:17,223 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-15 19:52:17,224 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-15 19:52:17,224 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-15 19:52:17,225 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-15 19:52:17,233 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 07:52:17" (1/1) ... [2021-10-15 19:52:17,244 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-15 19:52:17,259 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_229f6009-413d-4580-b932-763c06d460cc/bin/uautomizer-hJ6jxDFKc3/z3 [2021-10-15 19:52:17,284 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_229f6009-413d-4580-b932-763c06d460cc/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-15 19:52:17,308 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_229f6009-413d-4580-b932-763c06d460cc/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2021-10-15 19:52:17,352 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-10-15 19:52:17,352 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-15 19:52:17,352 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-10-15 19:52:17,352 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-15 19:52:17,353 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-15 19:52:17,353 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-10-15 19:52:17,353 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-10-15 19:52:17,696 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-15 19:52:17,697 INFO L299 CfgBuilder]: Removed 9 assume(true) statements. [2021-10-15 19:52:17,699 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 07:52:17 BoogieIcfgContainer [2021-10-15 19:52:17,699 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-15 19:52:17,701 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2021-10-15 19:52:17,701 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2021-10-15 19:52:17,705 INFO L275 PluginConnector]: BuchiAutomizer initialized [2021-10-15 19:52:17,706 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-10-15 19:52:17,706 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 15.10 07:52:16" (1/3) ... [2021-10-15 19:52:17,708 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@2138eef5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 15.10 07:52:17, skipping insertion in model container [2021-10-15 19:52:17,708 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-10-15 19:52:17,708 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 07:52:17" (2/3) ... [2021-10-15 19:52:17,709 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@2138eef5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 15.10 07:52:17, skipping insertion in model container [2021-10-15 19:52:17,709 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-10-15 19:52:17,709 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 07:52:17" (3/3) ... [2021-10-15 19:52:17,711 INFO L389 chiAutomizerObserver]: Analyzing ICFG invert_string-1.c [2021-10-15 19:52:17,764 INFO L359 BuchiCegarLoop]: Interprodecural is true [2021-10-15 19:52:17,765 INFO L360 BuchiCegarLoop]: Hoare is false [2021-10-15 19:52:17,765 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2021-10-15 19:52:17,765 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2021-10-15 19:52:17,765 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-10-15 19:52:17,766 INFO L364 BuchiCegarLoop]: Difference is false [2021-10-15 19:52:17,766 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-10-15 19:52:17,766 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2021-10-15 19:52:17,784 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 19 states, 18 states have (on average 1.4444444444444444) internal successors, (26), 18 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-15 19:52:17,809 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 9 [2021-10-15 19:52:17,809 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-15 19:52:17,809 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-15 19:52:17,817 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1] [2021-10-15 19:52:17,817 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2021-10-15 19:52:17,817 INFO L425 BuchiCegarLoop]: ======== Iteration 1============ [2021-10-15 19:52:17,818 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 19 states, 18 states have (on average 1.4444444444444444) internal successors, (26), 18 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-15 19:52:17,821 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 9 [2021-10-15 19:52:17,821 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-15 19:52:17,821 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-15 19:52:17,822 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1] [2021-10-15 19:52:17,822 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2021-10-15 19:52:17,831 INFO L791 eck$LassoCheckResult]: Stem: 4#ULTIMATE.startENTRYtrue #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string4.base, #t~string4.offset := #Ultimate.allocOnStack(2);call write~init~int(48, #t~string4.base, #t~string4.offset, 1);call write~init~int(0, #t~string4.base, 1 + #t~string4.offset, 1);call #t~string5.base, #t~string5.offset := #Ultimate.allocOnStack(18);call #t~string6.base, #t~string6.offset := #Ultimate.allocOnStack(12); 9#L-1true havoc main_#res;havoc main_#t~nondet7, main_#t~nondet9, main_#t~post8, main_#t~mem11, main_#t~post12, main_#t~post10, main_#t~mem14, main_#t~mem15, main_#t~post16, main_#t~post13, main_~MAX~0, main_~#str1~0.base, main_~#str1~0.offset, main_~#str2~0.base, main_~#str2~0.offset, main_~cont~0, main_~i~0, main_~j~0;main_~MAX~0 := (if main_#t~nondet7 % 4294967296 % 4294967296 <= 2147483647 then main_#t~nondet7 % 4294967296 % 4294967296 else main_#t~nondet7 % 4294967296 % 4294967296 - 4294967296);havoc main_#t~nondet7; 14#L17true assume !!(main_~MAX~0 > 0); 15#L17-2true call main_~#str1~0.base, main_~#str1~0.offset := #Ultimate.allocOnStack(main_~MAX~0);call main_~#str2~0.base, main_~#str2~0.offset := #Ultimate.allocOnStack(main_~MAX~0);havoc main_~cont~0;havoc main_~i~0;havoc main_~j~0;main_~cont~0 := 0;main_~i~0 := 0; 18#L22-3true [2021-10-15 19:52:17,832 INFO L793 eck$LassoCheckResult]: Loop: 18#L22-3true assume !!(main_~i~0 < main_~MAX~0);call write~int(main_#t~nondet9, main_~#str1~0.base, main_~#str1~0.offset + main_~i~0, 1);havoc main_#t~nondet9; 10#L22-2true main_#t~post8 := main_~i~0;main_~i~0 := 1 + main_#t~post8;havoc main_#t~post8; 18#L22-3true [2021-10-15 19:52:17,839 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-15 19:52:17,840 INFO L82 PathProgramCache]: Analyzing trace with hash 925669, now seen corresponding path program 1 times [2021-10-15 19:52:17,851 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-15 19:52:17,852 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [549066401] [2021-10-15 19:52:17,853 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-15 19:52:17,854 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-15 19:52:17,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-15 19:52:17,998 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-15 19:52:18,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-15 19:52:18,062 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-15 19:52:18,066 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-15 19:52:18,066 INFO L82 PathProgramCache]: Analyzing trace with hash 1507, now seen corresponding path program 1 times [2021-10-15 19:52:18,067 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-15 19:52:18,067 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [189926206] [2021-10-15 19:52:18,067 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-15 19:52:18,068 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-15 19:52:18,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-15 19:52:18,078 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-15 19:52:18,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-15 19:52:18,090 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-15 19:52:18,092 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-15 19:52:18,092 INFO L82 PathProgramCache]: Analyzing trace with hash 889568455, now seen corresponding path program 1 times [2021-10-15 19:52:18,093 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-15 19:52:18,093 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1540579992] [2021-10-15 19:52:18,094 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-15 19:52:18,094 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-15 19:52:18,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-15 19:52:18,134 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-15 19:52:18,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-15 19:52:18,193 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-15 19:52:19,570 INFO L210 LassoAnalysis]: Preferences: [2021-10-15 19:52:19,571 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-10-15 19:52:19,572 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-10-15 19:52:19,572 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-10-15 19:52:19,572 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2021-10-15 19:52:19,573 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-15 19:52:19,573 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-10-15 19:52:19,574 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-10-15 19:52:19,574 INFO L133 ssoRankerPreferences]: Filename of dumped script: invert_string-1.c_Iteration1_Lasso [2021-10-15 19:52:19,574 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-10-15 19:52:19,575 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-10-15 19:52:19,608 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-15 19:52:19,616 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-15 19:52:19,621 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-15 19:52:19,624 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-15 19:52:19,627 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-15 19:52:19,631 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-15 19:52:19,637 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-15 19:52:19,641 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-15 19:52:19,645 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-15 19:52:19,654 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-15 19:52:19,659 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-15 19:52:20,015 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-15 19:52:20,020 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-15 19:52:20,022 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-15 19:52:20,026 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-15 19:52:20,029 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-15 19:52:20,032 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-15 19:52:20,034 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-15 19:52:20,469 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-10-15 19:52:20,474 INFO L490 LassoAnalysis]: Using template 'affine'. [2021-10-15 19:52:20,476 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-15 19:52:20,476 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_229f6009-413d-4580-b932-763c06d460cc/bin/uautomizer-hJ6jxDFKc3/z3 [2021-10-15 19:52:20,483 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_229f6009-413d-4580-b932-763c06d460cc/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-15 19:52:20,494 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_229f6009-413d-4580-b932-763c06d460cc/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Waiting until timeout for monitored process [2021-10-15 19:52:20,496 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 [2021-10-15 19:52:20,507 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-15 19:52:20,508 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-15 19:52:20,508 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-15 19:52:20,508 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-15 19:52:20,508 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-15 19:52:20,511 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-15 19:52:20,511 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-15 19:52:20,523 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-15 19:52:20,564 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_229f6009-413d-4580-b932-763c06d460cc/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Ended with exit code 0 [2021-10-15 19:52:20,564 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-15 19:52:20,565 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_229f6009-413d-4580-b932-763c06d460cc/bin/uautomizer-hJ6jxDFKc3/z3 [2021-10-15 19:52:20,568 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_229f6009-413d-4580-b932-763c06d460cc/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-15 19:52:20,574 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_229f6009-413d-4580-b932-763c06d460cc/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Waiting until timeout for monitored process [2021-10-15 19:52:20,575 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 [2021-10-15 19:52:20,585 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-15 19:52:20,585 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-15 19:52:20,586 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-15 19:52:20,586 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-15 19:52:20,592 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-15 19:52:20,592 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-15 19:52:20,597 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-15 19:52:20,639 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_229f6009-413d-4580-b932-763c06d460cc/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Forceful destruction successful, exit code 0 [2021-10-15 19:52:20,639 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-15 19:52:20,640 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_229f6009-413d-4580-b932-763c06d460cc/bin/uautomizer-hJ6jxDFKc3/z3 [2021-10-15 19:52:20,643 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_229f6009-413d-4580-b932-763c06d460cc/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-15 19:52:20,646 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_229f6009-413d-4580-b932-763c06d460cc/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Waiting until timeout for monitored process [2021-10-15 19:52:20,647 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 [2021-10-15 19:52:20,656 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-15 19:52:20,656 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-15 19:52:20,657 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-15 19:52:20,657 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-15 19:52:20,657 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-15 19:52:20,658 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-15 19:52:20,659 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-15 19:52:20,674 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-15 19:52:20,718 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_229f6009-413d-4580-b932-763c06d460cc/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Forceful destruction successful, exit code 0 [2021-10-15 19:52:20,719 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-15 19:52:20,720 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_229f6009-413d-4580-b932-763c06d460cc/bin/uautomizer-hJ6jxDFKc3/z3 [2021-10-15 19:52:20,722 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_229f6009-413d-4580-b932-763c06d460cc/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-15 19:52:20,727 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_229f6009-413d-4580-b932-763c06d460cc/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Waiting until timeout for monitored process [2021-10-15 19:52:20,728 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 [2021-10-15 19:52:20,739 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-15 19:52:20,739 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-15 19:52:20,739 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-15 19:52:20,739 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-15 19:52:20,739 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-15 19:52:20,740 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-15 19:52:20,741 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-15 19:52:20,751 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-15 19:52:20,796 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_229f6009-413d-4580-b932-763c06d460cc/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Forceful destruction successful, exit code 0 [2021-10-15 19:52:20,796 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-15 19:52:20,797 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_229f6009-413d-4580-b932-763c06d460cc/bin/uautomizer-hJ6jxDFKc3/z3 [2021-10-15 19:52:20,803 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_229f6009-413d-4580-b932-763c06d460cc/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-15 19:52:20,806 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_229f6009-413d-4580-b932-763c06d460cc/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Waiting until timeout for monitored process [2021-10-15 19:52:20,809 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 [2021-10-15 19:52:20,821 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-15 19:52:20,821 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-15 19:52:20,821 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-15 19:52:20,822 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-15 19:52:20,822 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-15 19:52:20,823 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-15 19:52:20,823 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-15 19:52:20,838 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-15 19:52:20,864 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_229f6009-413d-4580-b932-763c06d460cc/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Forceful destruction successful, exit code 0 [2021-10-15 19:52:20,864 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-15 19:52:20,865 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_229f6009-413d-4580-b932-763c06d460cc/bin/uautomizer-hJ6jxDFKc3/z3 [2021-10-15 19:52:20,866 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_229f6009-413d-4580-b932-763c06d460cc/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-15 19:52:20,868 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_229f6009-413d-4580-b932-763c06d460cc/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Waiting until timeout for monitored process [2021-10-15 19:52:20,869 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 [2021-10-15 19:52:20,884 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-15 19:52:20,884 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-15 19:52:20,884 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-15 19:52:20,885 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-15 19:52:20,891 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-15 19:52:20,895 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-15 19:52:20,914 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-15 19:52:20,958 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_229f6009-413d-4580-b932-763c06d460cc/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Forceful destruction successful, exit code 0 [2021-10-15 19:52:20,959 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-15 19:52:20,959 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_229f6009-413d-4580-b932-763c06d460cc/bin/uautomizer-hJ6jxDFKc3/z3 [2021-10-15 19:52:20,961 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_229f6009-413d-4580-b932-763c06d460cc/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-15 19:52:20,971 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 [2021-10-15 19:52:20,984 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-15 19:52:20,984 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-15 19:52:20,984 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-15 19:52:20,984 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-15 19:52:20,985 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-15 19:52:20,986 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-15 19:52:20,986 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-15 19:52:20,988 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_229f6009-413d-4580-b932-763c06d460cc/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Waiting until timeout for monitored process [2021-10-15 19:52:20,998 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-15 19:52:21,038 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_229f6009-413d-4580-b932-763c06d460cc/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Forceful destruction successful, exit code 0 [2021-10-15 19:52:21,039 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-15 19:52:21,039 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_229f6009-413d-4580-b932-763c06d460cc/bin/uautomizer-hJ6jxDFKc3/z3 [2021-10-15 19:52:21,042 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_229f6009-413d-4580-b932-763c06d460cc/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-15 19:52:21,048 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_229f6009-413d-4580-b932-763c06d460cc/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Waiting until timeout for monitored process [2021-10-15 19:52:21,048 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 [2021-10-15 19:52:21,059 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-15 19:52:21,060 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-15 19:52:21,060 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-15 19:52:21,060 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-15 19:52:21,068 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-15 19:52:21,068 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-15 19:52:21,094 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-15 19:52:21,142 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_229f6009-413d-4580-b932-763c06d460cc/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Forceful destruction successful, exit code 0 [2021-10-15 19:52:21,143 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-15 19:52:21,143 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_229f6009-413d-4580-b932-763c06d460cc/bin/uautomizer-hJ6jxDFKc3/z3 [2021-10-15 19:52:21,145 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_229f6009-413d-4580-b932-763c06d460cc/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-15 19:52:21,156 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 [2021-10-15 19:52:21,167 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-15 19:52:21,168 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-15 19:52:21,168 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-15 19:52:21,168 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-15 19:52:21,168 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_229f6009-413d-4580-b932-763c06d460cc/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Waiting until timeout for monitored process [2021-10-15 19:52:21,172 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-15 19:52:21,172 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-15 19:52:21,210 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-15 19:52:21,248 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_229f6009-413d-4580-b932-763c06d460cc/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Forceful destruction successful, exit code 0 [2021-10-15 19:52:21,249 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-15 19:52:21,249 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_229f6009-413d-4580-b932-763c06d460cc/bin/uautomizer-hJ6jxDFKc3/z3 [2021-10-15 19:52:21,250 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_229f6009-413d-4580-b932-763c06d460cc/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-15 19:52:21,256 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 [2021-10-15 19:52:21,266 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-15 19:52:21,266 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-15 19:52:21,266 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-15 19:52:21,266 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-15 19:52:21,266 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-15 19:52:21,267 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-15 19:52:21,267 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-15 19:52:21,269 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_229f6009-413d-4580-b932-763c06d460cc/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Waiting until timeout for monitored process [2021-10-15 19:52:21,282 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-15 19:52:21,306 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_229f6009-413d-4580-b932-763c06d460cc/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Forceful destruction successful, exit code 0 [2021-10-15 19:52:21,306 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-15 19:52:21,307 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_229f6009-413d-4580-b932-763c06d460cc/bin/uautomizer-hJ6jxDFKc3/z3 [2021-10-15 19:52:21,308 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_229f6009-413d-4580-b932-763c06d460cc/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-15 19:52:21,313 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_229f6009-413d-4580-b932-763c06d460cc/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Waiting until timeout for monitored process [2021-10-15 19:52:21,314 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 [2021-10-15 19:52:21,323 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-15 19:52:21,324 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-15 19:52:21,324 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-15 19:52:21,324 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-15 19:52:21,328 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-15 19:52:21,328 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-15 19:52:21,361 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-15 19:52:21,396 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_229f6009-413d-4580-b932-763c06d460cc/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Forceful destruction successful, exit code 0 [2021-10-15 19:52:21,396 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-15 19:52:21,397 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_229f6009-413d-4580-b932-763c06d460cc/bin/uautomizer-hJ6jxDFKc3/z3 [2021-10-15 19:52:21,398 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_229f6009-413d-4580-b932-763c06d460cc/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-15 19:52:21,420 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_229f6009-413d-4580-b932-763c06d460cc/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Waiting until timeout for monitored process [2021-10-15 19:52:21,421 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 [2021-10-15 19:52:21,429 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-15 19:52:21,429 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-15 19:52:21,429 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-15 19:52:21,429 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-15 19:52:21,432 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-15 19:52:21,432 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-15 19:52:21,442 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-15 19:52:21,464 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_229f6009-413d-4580-b932-763c06d460cc/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Ended with exit code 0 [2021-10-15 19:52:21,465 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-15 19:52:21,465 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_229f6009-413d-4580-b932-763c06d460cc/bin/uautomizer-hJ6jxDFKc3/z3 [2021-10-15 19:52:21,466 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_229f6009-413d-4580-b932-763c06d460cc/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-15 19:52:21,467 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_229f6009-413d-4580-b932-763c06d460cc/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (14)] Waiting until timeout for monitored process [2021-10-15 19:52:21,468 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 [2021-10-15 19:52:21,476 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-15 19:52:21,476 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-15 19:52:21,476 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-15 19:52:21,476 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-15 19:52:21,484 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-15 19:52:21,485 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-15 19:52:21,510 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2021-10-15 19:52:21,551 INFO L443 ModelExtractionUtils]: Simplification made 13 calls to the SMT solver. [2021-10-15 19:52:21,551 INFO L444 ModelExtractionUtils]: 10 out of 22 variables were initially zero. Simplification set additionally 9 variables to zero. [2021-10-15 19:52:21,553 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-15 19:52:21,553 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_229f6009-413d-4580-b932-763c06d460cc/bin/uautomizer-hJ6jxDFKc3/z3 [2021-10-15 19:52:21,559 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_229f6009-413d-4580-b932-763c06d460cc/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-15 19:52:21,614 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_229f6009-413d-4580-b932-763c06d460cc/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (15)] Waiting until timeout for monitored process [2021-10-15 19:52:21,615 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2021-10-15 19:52:21,641 INFO L438 nArgumentSynthesizer]: Removed 2 redundant supporting invariants from a total of 2. [2021-10-15 19:52:21,642 INFO L513 LassoAnalysis]: Proved termination. [2021-10-15 19:52:21,642 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~i~0, ULTIMATE.start_main_~MAX~0) = -1*ULTIMATE.start_main_~i~0 + 1*ULTIMATE.start_main_~MAX~0 Supporting invariants [] [2021-10-15 19:52:21,715 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_229f6009-413d-4580-b932-763c06d460cc/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (14)] Forceful destruction successful, exit code 0 [2021-10-15 19:52:21,793 INFO L297 tatePredicateManager]: 16 out of 16 supporting invariants were superfluous and have been removed [2021-10-15 19:52:21,816 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-15 19:52:21,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-15 19:52:21,853 INFO L263 TraceCheckSpWp]: Trace formula consists of 52 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-15 19:52:21,854 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-15 19:52:21,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-15 19:52:21,878 INFO L263 TraceCheckSpWp]: Trace formula consists of 10 conjuncts, 4 conjunts are in the unsatisfiable core [2021-10-15 19:52:21,878 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-15 19:52:21,898 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-15 19:52:21,916 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates [2021-10-15 19:52:21,918 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand has 19 states, 18 states have (on average 1.4444444444444444) internal successors, (26), 18 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 3 states, 3 states have (on average 2.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-15 19:52:21,979 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand has 19 states, 18 states have (on average 1.4444444444444444) internal successors, (26), 18 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0). Second operand has 3 states, 3 states have (on average 2.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 38 states and 55 transitions. Complement of second has 8 states. [2021-10-15 19:52:21,980 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 5 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2021-10-15 19:52:21,982 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 2.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-15 19:52:21,984 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 31 transitions. [2021-10-15 19:52:21,986 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 31 transitions. Stem has 4 letters. Loop has 2 letters. [2021-10-15 19:52:21,987 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-15 19:52:21,987 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 31 transitions. Stem has 6 letters. Loop has 2 letters. [2021-10-15 19:52:21,988 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-15 19:52:21,988 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 31 transitions. Stem has 4 letters. Loop has 4 letters. [2021-10-15 19:52:21,990 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-15 19:52:21,991 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 38 states and 55 transitions. [2021-10-15 19:52:21,998 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 7 [2021-10-15 19:52:22,005 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 38 states to 16 states and 21 transitions. [2021-10-15 19:52:22,007 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 13 [2021-10-15 19:52:22,007 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 14 [2021-10-15 19:52:22,008 INFO L73 IsDeterministic]: Start isDeterministic. Operand 16 states and 21 transitions. [2021-10-15 19:52:22,008 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-15 19:52:22,008 INFO L681 BuchiCegarLoop]: Abstraction has 16 states and 21 transitions. [2021-10-15 19:52:22,027 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16 states and 21 transitions. [2021-10-15 19:52:22,037 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16 to 16. [2021-10-15 19:52:22,038 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16 states, 16 states have (on average 1.3125) internal successors, (21), 15 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-15 19:52:22,039 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 21 transitions. [2021-10-15 19:52:22,040 INFO L704 BuchiCegarLoop]: Abstraction has 16 states and 21 transitions. [2021-10-15 19:52:22,040 INFO L587 BuchiCegarLoop]: Abstraction has 16 states and 21 transitions. [2021-10-15 19:52:22,041 INFO L425 BuchiCegarLoop]: ======== Iteration 2============ [2021-10-15 19:52:22,041 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 16 states and 21 transitions. [2021-10-15 19:52:22,043 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 7 [2021-10-15 19:52:22,043 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-15 19:52:22,043 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-15 19:52:22,044 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2021-10-15 19:52:22,044 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2021-10-15 19:52:22,045 INFO L791 eck$LassoCheckResult]: Stem: 167#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string4.base, #t~string4.offset := #Ultimate.allocOnStack(2);call write~init~int(48, #t~string4.base, #t~string4.offset, 1);call write~init~int(0, #t~string4.base, 1 + #t~string4.offset, 1);call #t~string5.base, #t~string5.offset := #Ultimate.allocOnStack(18);call #t~string6.base, #t~string6.offset := #Ultimate.allocOnStack(12); 168#L-1 havoc main_#res;havoc main_#t~nondet7, main_#t~nondet9, main_#t~post8, main_#t~mem11, main_#t~post12, main_#t~post10, main_#t~mem14, main_#t~mem15, main_#t~post16, main_#t~post13, main_~MAX~0, main_~#str1~0.base, main_~#str1~0.offset, main_~#str2~0.base, main_~#str2~0.offset, main_~cont~0, main_~i~0, main_~j~0;main_~MAX~0 := (if main_#t~nondet7 % 4294967296 % 4294967296 <= 2147483647 then main_#t~nondet7 % 4294967296 % 4294967296 else main_#t~nondet7 % 4294967296 % 4294967296 - 4294967296);havoc main_#t~nondet7; 175#L17 assume !!(main_~MAX~0 > 0); 179#L17-2 call main_~#str1~0.base, main_~#str1~0.offset := #Ultimate.allocOnStack(main_~MAX~0);call main_~#str2~0.base, main_~#str2~0.offset := #Ultimate.allocOnStack(main_~MAX~0);havoc main_~cont~0;havoc main_~i~0;havoc main_~j~0;main_~cont~0 := 0;main_~i~0 := 0; 180#L22-3 assume !(main_~i~0 < main_~MAX~0); 171#L22-4 call write~int(0, main_~#str1~0.base, main_~#str1~0.offset + (main_~MAX~0 - 1), 1);main_~j~0 := 0;main_~i~0 := main_~MAX~0 - 1; 172#L29-3 [2021-10-15 19:52:22,045 INFO L793 eck$LassoCheckResult]: Loop: 172#L29-3 assume !!(main_~i~0 >= 0);call main_#t~mem11 := read~int(main_~#str1~0.base, main_~#str1~0.offset, 1);call write~int(main_#t~mem11, main_~#str2~0.base, main_~#str2~0.offset + main_~j~0, 1);havoc main_#t~mem11;main_#t~post12 := main_~j~0;main_~j~0 := 1 + main_#t~post12;havoc main_#t~post12; 181#L29-2 main_#t~post10 := main_~i~0;main_~i~0 := main_#t~post10 - 1;havoc main_#t~post10; 172#L29-3 [2021-10-15 19:52:22,046 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-15 19:52:22,046 INFO L82 PathProgramCache]: Analyzing trace with hash 889568397, now seen corresponding path program 1 times [2021-10-15 19:52:22,046 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-15 19:52:22,048 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1984633136] [2021-10-15 19:52:22,048 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-15 19:52:22,048 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-15 19:52:22,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-15 19:52:22,178 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-15 19:52:22,179 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-15 19:52:22,179 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1984633136] [2021-10-15 19:52:22,180 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1984633136] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-15 19:52:22,180 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-15 19:52:22,180 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-10-15 19:52:22,181 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [811065941] [2021-10-15 19:52:22,184 INFO L796 eck$LassoCheckResult]: stem already infeasible [2021-10-15 19:52:22,184 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-15 19:52:22,184 INFO L82 PathProgramCache]: Analyzing trace with hash 1955, now seen corresponding path program 1 times [2021-10-15 19:52:22,185 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-15 19:52:22,185 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [236027701] [2021-10-15 19:52:22,185 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-15 19:52:22,186 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-15 19:52:22,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-15 19:52:22,193 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-15 19:52:22,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-15 19:52:22,202 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-15 19:52:22,293 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-15 19:52:22,296 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-15 19:52:22,296 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-10-15 19:52:22,298 INFO L87 Difference]: Start difference. First operand 16 states and 21 transitions. cyclomatic complexity: 8 Second operand has 4 states, 4 states have (on average 1.5) internal successors, (6), 4 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-15 19:52:22,357 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-15 19:52:22,357 INFO L93 Difference]: Finished difference Result 22 states and 24 transitions. [2021-10-15 19:52:22,357 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-15 19:52:22,358 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 22 states and 24 transitions. [2021-10-15 19:52:22,362 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 6 [2021-10-15 19:52:22,364 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 22 states to 20 states and 22 transitions. [2021-10-15 19:52:22,364 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 17 [2021-10-15 19:52:22,364 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 17 [2021-10-15 19:52:22,365 INFO L73 IsDeterministic]: Start isDeterministic. Operand 20 states and 22 transitions. [2021-10-15 19:52:22,366 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-15 19:52:22,366 INFO L681 BuchiCegarLoop]: Abstraction has 20 states and 22 transitions. [2021-10-15 19:52:22,366 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20 states and 22 transitions. [2021-10-15 19:52:22,369 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20 to 15. [2021-10-15 19:52:22,370 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15 states, 15 states have (on average 1.1333333333333333) internal successors, (17), 14 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-15 19:52:22,370 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 17 transitions. [2021-10-15 19:52:22,371 INFO L704 BuchiCegarLoop]: Abstraction has 15 states and 17 transitions. [2021-10-15 19:52:22,371 INFO L587 BuchiCegarLoop]: Abstraction has 15 states and 17 transitions. [2021-10-15 19:52:22,371 INFO L425 BuchiCegarLoop]: ======== Iteration 3============ [2021-10-15 19:52:22,373 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 15 states and 17 transitions. [2021-10-15 19:52:22,375 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 6 [2021-10-15 19:52:22,376 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-15 19:52:22,376 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-15 19:52:22,377 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1] [2021-10-15 19:52:22,377 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2021-10-15 19:52:22,377 INFO L791 eck$LassoCheckResult]: Stem: 212#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string4.base, #t~string4.offset := #Ultimate.allocOnStack(2);call write~init~int(48, #t~string4.base, #t~string4.offset, 1);call write~init~int(0, #t~string4.base, 1 + #t~string4.offset, 1);call #t~string5.base, #t~string5.offset := #Ultimate.allocOnStack(18);call #t~string6.base, #t~string6.offset := #Ultimate.allocOnStack(12); 213#L-1 havoc main_#res;havoc main_#t~nondet7, main_#t~nondet9, main_#t~post8, main_#t~mem11, main_#t~post12, main_#t~post10, main_#t~mem14, main_#t~mem15, main_#t~post16, main_#t~post13, main_~MAX~0, main_~#str1~0.base, main_~#str1~0.offset, main_~#str2~0.base, main_~#str2~0.offset, main_~cont~0, main_~i~0, main_~j~0;main_~MAX~0 := (if main_#t~nondet7 % 4294967296 % 4294967296 <= 2147483647 then main_#t~nondet7 % 4294967296 % 4294967296 else main_#t~nondet7 % 4294967296 % 4294967296 - 4294967296);havoc main_#t~nondet7; 220#L17 assume !!(main_~MAX~0 > 0); 223#L17-2 call main_~#str1~0.base, main_~#str1~0.offset := #Ultimate.allocOnStack(main_~MAX~0);call main_~#str2~0.base, main_~#str2~0.offset := #Ultimate.allocOnStack(main_~MAX~0);havoc main_~cont~0;havoc main_~i~0;havoc main_~j~0;main_~cont~0 := 0;main_~i~0 := 0; 224#L22-3 assume !!(main_~i~0 < main_~MAX~0);call write~int(main_#t~nondet9, main_~#str1~0.base, main_~#str1~0.offset + main_~i~0, 1);havoc main_#t~nondet9; 218#L22-2 main_#t~post8 := main_~i~0;main_~i~0 := 1 + main_#t~post8;havoc main_#t~post8; 219#L22-3 assume !(main_~i~0 < main_~MAX~0); 216#L22-4 call write~int(0, main_~#str1~0.base, main_~#str1~0.offset + (main_~MAX~0 - 1), 1);main_~j~0 := 0;main_~i~0 := main_~MAX~0 - 1; 217#L29-3 [2021-10-15 19:52:22,377 INFO L793 eck$LassoCheckResult]: Loop: 217#L29-3 assume !!(main_~i~0 >= 0);call main_#t~mem11 := read~int(main_~#str1~0.base, main_~#str1~0.offset, 1);call write~int(main_#t~mem11, main_~#str2~0.base, main_~#str2~0.offset + main_~j~0, 1);havoc main_#t~mem11;main_#t~post12 := main_~j~0;main_~j~0 := 1 + main_#t~post12;havoc main_#t~post12; 225#L29-2 main_#t~post10 := main_~i~0;main_~i~0 := main_#t~post10 - 1;havoc main_#t~post10; 217#L29-3 [2021-10-15 19:52:22,378 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-15 19:52:22,378 INFO L82 PathProgramCache]: Analyzing trace with hash 176793839, now seen corresponding path program 1 times [2021-10-15 19:52:22,379 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-15 19:52:22,380 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1641099166] [2021-10-15 19:52:22,380 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-15 19:52:22,382 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-15 19:52:22,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-15 19:52:22,435 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-15 19:52:22,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-15 19:52:22,471 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-15 19:52:22,473 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-15 19:52:22,473 INFO L82 PathProgramCache]: Analyzing trace with hash 1955, now seen corresponding path program 2 times [2021-10-15 19:52:22,473 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-15 19:52:22,473 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [355457303] [2021-10-15 19:52:22,474 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-15 19:52:22,474 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-15 19:52:22,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-15 19:52:22,481 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-15 19:52:22,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-15 19:52:22,488 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-15 19:52:22,489 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-15 19:52:22,489 INFO L82 PathProgramCache]: Analyzing trace with hash -1899811567, now seen corresponding path program 1 times [2021-10-15 19:52:22,490 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-15 19:52:22,490 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [628198375] [2021-10-15 19:52:22,490 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-15 19:52:22,490 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-15 19:52:22,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-15 19:52:22,530 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-15 19:52:22,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-15 19:52:22,563 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-15 19:52:23,592 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_229f6009-413d-4580-b932-763c06d460cc/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (15)] Forceful destruction successful, exit code 0 [2021-10-15 19:52:23,932 INFO L210 LassoAnalysis]: Preferences: [2021-10-15 19:52:23,932 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-10-15 19:52:23,932 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-10-15 19:52:23,932 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-10-15 19:52:23,932 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2021-10-15 19:52:23,932 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-15 19:52:23,932 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-10-15 19:52:23,933 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-10-15 19:52:23,933 INFO L133 ssoRankerPreferences]: Filename of dumped script: invert_string-1.c_Iteration3_Lasso [2021-10-15 19:52:23,933 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-10-15 19:52:23,933 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-10-15 19:52:23,938 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-15 19:52:23,942 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-15 19:52:23,945 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-15 19:52:23,948 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-15 19:52:23,950 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-15 19:52:24,283 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-15 19:52:24,286 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-15 19:52:24,289 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-15 19:52:24,292 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-15 19:52:24,294 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-15 19:52:24,298 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-15 19:52:24,300 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-15 19:52:24,303 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-15 19:52:24,305 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-15 19:52:24,308 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-15 19:52:24,310 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-15 19:52:24,313 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-15 19:52:24,667 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-10-15 19:52:24,667 INFO L490 LassoAnalysis]: Using template 'affine'. [2021-10-15 19:52:24,668 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-15 19:52:24,668 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_229f6009-413d-4580-b932-763c06d460cc/bin/uautomizer-hJ6jxDFKc3/z3 [2021-10-15 19:52:24,674 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_229f6009-413d-4580-b932-763c06d460cc/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-15 19:52:24,683 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 [2021-10-15 19:52:24,694 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-15 19:52:24,694 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-15 19:52:24,694 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-15 19:52:24,695 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-15 19:52:24,695 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-15 19:52:24,696 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-15 19:52:24,696 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-15 19:52:24,698 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_229f6009-413d-4580-b932-763c06d460cc/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (16)] Waiting until timeout for monitored process [2021-10-15 19:52:24,703 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-15 19:52:24,749 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_229f6009-413d-4580-b932-763c06d460cc/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (16)] Forceful destruction successful, exit code 0 [2021-10-15 19:52:24,750 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-15 19:52:24,750 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_229f6009-413d-4580-b932-763c06d460cc/bin/uautomizer-hJ6jxDFKc3/z3 [2021-10-15 19:52:24,771 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_229f6009-413d-4580-b932-763c06d460cc/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-15 19:52:24,799 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 [2021-10-15 19:52:24,809 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-15 19:52:24,809 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-15 19:52:24,809 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-15 19:52:24,809 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-15 19:52:24,812 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-15 19:52:24,812 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-15 19:52:24,814 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_229f6009-413d-4580-b932-763c06d460cc/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (17)] Waiting until timeout for monitored process [2021-10-15 19:52:24,820 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-15 19:52:24,862 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_229f6009-413d-4580-b932-763c06d460cc/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (17)] Forceful destruction successful, exit code 0 [2021-10-15 19:52:24,862 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-15 19:52:24,862 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_229f6009-413d-4580-b932-763c06d460cc/bin/uautomizer-hJ6jxDFKc3/z3 [2021-10-15 19:52:24,863 INFO L229 MonitoredProcess]: Starting monitored process 18 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_229f6009-413d-4580-b932-763c06d460cc/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-15 19:52:24,883 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 [2021-10-15 19:52:24,893 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-15 19:52:24,893 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-15 19:52:24,893 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-15 19:52:24,893 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-15 19:52:24,893 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-15 19:52:24,894 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-15 19:52:24,894 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-15 19:52:24,896 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_229f6009-413d-4580-b932-763c06d460cc/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (18)] Waiting until timeout for monitored process [2021-10-15 19:52:24,906 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-15 19:52:24,948 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_229f6009-413d-4580-b932-763c06d460cc/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (18)] Forceful destruction successful, exit code 0 [2021-10-15 19:52:24,948 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-15 19:52:24,948 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_229f6009-413d-4580-b932-763c06d460cc/bin/uautomizer-hJ6jxDFKc3/z3 [2021-10-15 19:52:24,949 INFO L229 MonitoredProcess]: Starting monitored process 19 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_229f6009-413d-4580-b932-763c06d460cc/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-15 19:52:24,957 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 [2021-10-15 19:52:24,968 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-15 19:52:24,968 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-15 19:52:24,968 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-15 19:52:24,968 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-15 19:52:24,968 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-15 19:52:24,970 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_229f6009-413d-4580-b932-763c06d460cc/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (19)] Waiting until timeout for monitored process [2021-10-15 19:52:24,970 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-15 19:52:24,970 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-15 19:52:24,988 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-15 19:52:25,024 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_229f6009-413d-4580-b932-763c06d460cc/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (19)] Forceful destruction successful, exit code 0 [2021-10-15 19:52:25,025 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-15 19:52:25,025 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_229f6009-413d-4580-b932-763c06d460cc/bin/uautomizer-hJ6jxDFKc3/z3 [2021-10-15 19:52:25,026 INFO L229 MonitoredProcess]: Starting monitored process 20 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_229f6009-413d-4580-b932-763c06d460cc/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-15 19:52:25,039 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 [2021-10-15 19:52:25,049 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-15 19:52:25,049 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-15 19:52:25,050 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-15 19:52:25,050 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-15 19:52:25,053 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-15 19:52:25,053 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-15 19:52:25,056 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_229f6009-413d-4580-b932-763c06d460cc/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (20)] Waiting until timeout for monitored process [2021-10-15 19:52:25,065 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-15 19:52:25,108 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_229f6009-413d-4580-b932-763c06d460cc/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (20)] Forceful destruction successful, exit code 0 [2021-10-15 19:52:25,109 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-15 19:52:25,109 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_229f6009-413d-4580-b932-763c06d460cc/bin/uautomizer-hJ6jxDFKc3/z3 [2021-10-15 19:52:25,110 INFO L229 MonitoredProcess]: Starting monitored process 21 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_229f6009-413d-4580-b932-763c06d460cc/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-15 19:52:25,117 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_229f6009-413d-4580-b932-763c06d460cc/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (21)] Waiting until timeout for monitored process [2021-10-15 19:52:25,118 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 [2021-10-15 19:52:25,129 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-15 19:52:25,129 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-15 19:52:25,129 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-15 19:52:25,129 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-15 19:52:25,132 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-15 19:52:25,133 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-15 19:52:25,150 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-15 19:52:25,180 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_229f6009-413d-4580-b932-763c06d460cc/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (21)] Forceful destruction successful, exit code 0 [2021-10-15 19:52:25,181 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-15 19:52:25,181 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_229f6009-413d-4580-b932-763c06d460cc/bin/uautomizer-hJ6jxDFKc3/z3 [2021-10-15 19:52:25,181 INFO L229 MonitoredProcess]: Starting monitored process 22 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_229f6009-413d-4580-b932-763c06d460cc/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-15 19:52:25,182 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_229f6009-413d-4580-b932-763c06d460cc/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (22)] Waiting until timeout for monitored process [2021-10-15 19:52:25,183 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 [2021-10-15 19:52:25,191 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-15 19:52:25,192 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-15 19:52:25,192 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-15 19:52:25,192 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-15 19:52:25,193 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-15 19:52:25,194 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-15 19:52:25,217 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-15 19:52:25,242 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_229f6009-413d-4580-b932-763c06d460cc/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (22)] Forceful destruction successful, exit code 0 [2021-10-15 19:52:25,242 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-15 19:52:25,242 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_229f6009-413d-4580-b932-763c06d460cc/bin/uautomizer-hJ6jxDFKc3/z3 [2021-10-15 19:52:25,243 INFO L229 MonitoredProcess]: Starting monitored process 23 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_229f6009-413d-4580-b932-763c06d460cc/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-15 19:52:25,244 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_229f6009-413d-4580-b932-763c06d460cc/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (23)] Waiting until timeout for monitored process [2021-10-15 19:52:25,245 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 [2021-10-15 19:52:25,252 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-15 19:52:25,252 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-15 19:52:25,252 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-15 19:52:25,253 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-15 19:52:25,253 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-15 19:52:25,253 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-15 19:52:25,253 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-15 19:52:25,255 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-15 19:52:25,277 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_229f6009-413d-4580-b932-763c06d460cc/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (23)] Ended with exit code 0 [2021-10-15 19:52:25,277 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-15 19:52:25,277 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_229f6009-413d-4580-b932-763c06d460cc/bin/uautomizer-hJ6jxDFKc3/z3 [2021-10-15 19:52:25,278 INFO L229 MonitoredProcess]: Starting monitored process 24 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_229f6009-413d-4580-b932-763c06d460cc/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-15 19:52:25,279 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_229f6009-413d-4580-b932-763c06d460cc/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (24)] Waiting until timeout for monitored process [2021-10-15 19:52:25,280 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 [2021-10-15 19:52:25,289 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-15 19:52:25,289 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-15 19:52:25,289 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-15 19:52:25,289 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-15 19:52:25,293 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-15 19:52:25,293 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-15 19:52:25,301 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-15 19:52:25,326 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_229f6009-413d-4580-b932-763c06d460cc/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (24)] Forceful destruction successful, exit code 0 [2021-10-15 19:52:25,326 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-15 19:52:25,326 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_229f6009-413d-4580-b932-763c06d460cc/bin/uautomizer-hJ6jxDFKc3/z3 [2021-10-15 19:52:25,327 INFO L229 MonitoredProcess]: Starting monitored process 25 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_229f6009-413d-4580-b932-763c06d460cc/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-15 19:52:25,328 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_229f6009-413d-4580-b932-763c06d460cc/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (25)] Waiting until timeout for monitored process [2021-10-15 19:52:25,329 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 [2021-10-15 19:52:25,338 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-15 19:52:25,338 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-15 19:52:25,338 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-15 19:52:25,338 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-15 19:52:25,345 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-15 19:52:25,345 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-15 19:52:25,370 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-15 19:52:25,395 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_229f6009-413d-4580-b932-763c06d460cc/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (25)] Ended with exit code 0 [2021-10-15 19:52:25,395 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-15 19:52:25,396 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_229f6009-413d-4580-b932-763c06d460cc/bin/uautomizer-hJ6jxDFKc3/z3 [2021-10-15 19:52:25,397 INFO L229 MonitoredProcess]: Starting monitored process 26 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_229f6009-413d-4580-b932-763c06d460cc/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-15 19:52:25,401 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_229f6009-413d-4580-b932-763c06d460cc/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (26)] Waiting until timeout for monitored process [2021-10-15 19:52:25,401 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 [2021-10-15 19:52:25,410 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-15 19:52:25,410 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-15 19:52:25,410 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-15 19:52:25,410 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-15 19:52:25,412 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-15 19:52:25,412 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-15 19:52:25,415 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-15 19:52:25,436 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_229f6009-413d-4580-b932-763c06d460cc/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (26)] Ended with exit code 0 [2021-10-15 19:52:25,437 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-15 19:52:25,437 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_229f6009-413d-4580-b932-763c06d460cc/bin/uautomizer-hJ6jxDFKc3/z3 [2021-10-15 19:52:25,438 INFO L229 MonitoredProcess]: Starting monitored process 27 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_229f6009-413d-4580-b932-763c06d460cc/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-15 19:52:25,439 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 [2021-10-15 19:52:25,442 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_229f6009-413d-4580-b932-763c06d460cc/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (27)] Waiting until timeout for monitored process [2021-10-15 19:52:25,447 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-15 19:52:25,447 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-15 19:52:25,447 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-15 19:52:25,447 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-15 19:52:25,449 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-15 19:52:25,449 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-15 19:52:25,459 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-15 19:52:25,486 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_229f6009-413d-4580-b932-763c06d460cc/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (27)] Forceful destruction successful, exit code 0 [2021-10-15 19:52:25,487 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-15 19:52:25,487 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_229f6009-413d-4580-b932-763c06d460cc/bin/uautomizer-hJ6jxDFKc3/z3 [2021-10-15 19:52:25,488 INFO L229 MonitoredProcess]: Starting monitored process 28 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_229f6009-413d-4580-b932-763c06d460cc/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-15 19:52:25,511 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 [2021-10-15 19:52:25,523 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_229f6009-413d-4580-b932-763c06d460cc/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (28)] Waiting until timeout for monitored process [2021-10-15 19:52:25,523 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-15 19:52:25,524 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-15 19:52:25,524 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-15 19:52:25,524 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-15 19:52:25,546 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-15 19:52:25,546 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-15 19:52:25,570 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2021-10-15 19:52:25,614 INFO L443 ModelExtractionUtils]: Simplification made 14 calls to the SMT solver. [2021-10-15 19:52:25,614 INFO L444 ModelExtractionUtils]: 9 out of 28 variables were initially zero. Simplification set additionally 14 variables to zero. [2021-10-15 19:52:25,614 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-15 19:52:25,615 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_229f6009-413d-4580-b932-763c06d460cc/bin/uautomizer-hJ6jxDFKc3/z3 [2021-10-15 19:52:25,622 INFO L229 MonitoredProcess]: Starting monitored process 29 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_229f6009-413d-4580-b932-763c06d460cc/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-15 19:52:25,627 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2021-10-15 19:52:25,637 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_229f6009-413d-4580-b932-763c06d460cc/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (29)] Waiting until timeout for monitored process [2021-10-15 19:52:25,659 INFO L438 nArgumentSynthesizer]: Removed 1 redundant supporting invariants from a total of 2. [2021-10-15 19:52:25,659 INFO L513 LassoAnalysis]: Proved termination. [2021-10-15 19:52:25,659 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~j~0) = -2*ULTIMATE.start_main_~j~0 + 1 Supporting invariants [-3*ULTIMATE.start_main_~i~0 - 2*ULTIMATE.start_main_~j~0 >= 0] [2021-10-15 19:52:25,686 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_229f6009-413d-4580-b932-763c06d460cc/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (28)] Forceful destruction successful, exit code 0 [2021-10-15 19:52:25,755 INFO L297 tatePredicateManager]: 18 out of 19 supporting invariants were superfluous and have been removed [2021-10-15 19:52:25,787 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-15 19:52:25,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-15 19:52:25,810 INFO L263 TraceCheckSpWp]: Trace formula consists of 70 conjuncts, 7 conjunts are in the unsatisfiable core [2021-10-15 19:52:25,811 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-15 19:52:25,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-15 19:52:25,922 INFO L263 TraceCheckSpWp]: Trace formula consists of 17 conjuncts, 7 conjunts are in the unsatisfiable core [2021-10-15 19:52:25,923 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-15 19:52:25,963 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-15 19:52:25,964 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.4 stem predicates 2 loop predicates [2021-10-15 19:52:25,964 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 15 states and 17 transitions. cyclomatic complexity: 5 Second operand has 6 states, 6 states have (on average 1.6666666666666667) internal successors, (10), 6 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-15 19:52:26,078 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 15 states and 17 transitions. cyclomatic complexity: 5. Second operand has 6 states, 6 states have (on average 1.6666666666666667) internal successors, (10), 6 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 27 states and 33 transitions. Complement of second has 9 states. [2021-10-15 19:52:26,081 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 7 states 4 stem states 1 non-accepting loop states 2 accepting loop states [2021-10-15 19:52:26,081 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6 states, 6 states have (on average 1.6666666666666667) internal successors, (10), 6 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-15 19:52:26,082 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 16 transitions. [2021-10-15 19:52:26,082 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 7 states and 16 transitions. Stem has 8 letters. Loop has 2 letters. [2021-10-15 19:52:26,082 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-15 19:52:26,082 INFO L639 RefineBuchi]: Bad chosen interpolant automaton: word not accepted [2021-10-15 19:52:26,110 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-15 19:52:26,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-15 19:52:26,130 INFO L263 TraceCheckSpWp]: Trace formula consists of 70 conjuncts, 7 conjunts are in the unsatisfiable core [2021-10-15 19:52:26,131 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-15 19:52:26,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-15 19:52:26,240 INFO L263 TraceCheckSpWp]: Trace formula consists of 17 conjuncts, 7 conjunts are in the unsatisfiable core [2021-10-15 19:52:26,240 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-15 19:52:26,281 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-15 19:52:26,282 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and with honda bouncer for loop.4 stem predicates 2 loop predicates [2021-10-15 19:52:26,282 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 15 states and 17 transitions. cyclomatic complexity: 5 Second operand has 6 states, 6 states have (on average 1.6666666666666667) internal successors, (10), 6 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-15 19:52:26,405 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 15 states and 17 transitions. cyclomatic complexity: 5. Second operand has 6 states, 6 states have (on average 1.6666666666666667) internal successors, (10), 6 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 28 states and 36 transitions. Complement of second has 11 states. [2021-10-15 19:52:26,406 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 8 states 4 stem states 2 non-accepting loop states 2 accepting loop states [2021-10-15 19:52:26,406 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6 states, 6 states have (on average 1.6666666666666667) internal successors, (10), 6 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-15 19:52:26,407 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 17 transitions. [2021-10-15 19:52:26,407 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 8 states and 17 transitions. Stem has 8 letters. Loop has 2 letters. [2021-10-15 19:52:26,407 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-15 19:52:26,407 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 8 states and 17 transitions. Stem has 10 letters. Loop has 2 letters. [2021-10-15 19:52:26,407 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-15 19:52:26,407 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 8 states and 17 transitions. Stem has 8 letters. Loop has 4 letters. [2021-10-15 19:52:26,407 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-15 19:52:26,408 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 28 states and 36 transitions. [2021-10-15 19:52:26,409 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 6 [2021-10-15 19:52:26,411 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 28 states to 26 states and 32 transitions. [2021-10-15 19:52:26,411 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 16 [2021-10-15 19:52:26,411 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 19 [2021-10-15 19:52:26,412 INFO L73 IsDeterministic]: Start isDeterministic. Operand 26 states and 32 transitions. [2021-10-15 19:52:26,412 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-15 19:52:26,412 INFO L681 BuchiCegarLoop]: Abstraction has 26 states and 32 transitions. [2021-10-15 19:52:26,412 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26 states and 32 transitions. [2021-10-15 19:52:26,415 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26 to 21. [2021-10-15 19:52:26,415 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 21 states, 21 states have (on average 1.2380952380952381) internal successors, (26), 20 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-15 19:52:26,416 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 26 transitions. [2021-10-15 19:52:26,416 INFO L704 BuchiCegarLoop]: Abstraction has 21 states and 26 transitions. [2021-10-15 19:52:26,416 INFO L587 BuchiCegarLoop]: Abstraction has 21 states and 26 transitions. [2021-10-15 19:52:26,417 INFO L425 BuchiCegarLoop]: ======== Iteration 4============ [2021-10-15 19:52:26,417 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 21 states and 26 transitions. [2021-10-15 19:52:26,418 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 6 [2021-10-15 19:52:26,418 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-15 19:52:26,418 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-15 19:52:26,419 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [2, 2, 1, 1, 1, 1, 1, 1] [2021-10-15 19:52:26,419 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2021-10-15 19:52:26,419 INFO L791 eck$LassoCheckResult]: Stem: 485#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string4.base, #t~string4.offset := #Ultimate.allocOnStack(2);call write~init~int(48, #t~string4.base, #t~string4.offset, 1);call write~init~int(0, #t~string4.base, 1 + #t~string4.offset, 1);call #t~string5.base, #t~string5.offset := #Ultimate.allocOnStack(18);call #t~string6.base, #t~string6.offset := #Ultimate.allocOnStack(12); 486#L-1 havoc main_#res;havoc main_#t~nondet7, main_#t~nondet9, main_#t~post8, main_#t~mem11, main_#t~post12, main_#t~post10, main_#t~mem14, main_#t~mem15, main_#t~post16, main_#t~post13, main_~MAX~0, main_~#str1~0.base, main_~#str1~0.offset, main_~#str2~0.base, main_~#str2~0.offset, main_~cont~0, main_~i~0, main_~j~0;main_~MAX~0 := (if main_#t~nondet7 % 4294967296 % 4294967296 <= 2147483647 then main_#t~nondet7 % 4294967296 % 4294967296 else main_#t~nondet7 % 4294967296 % 4294967296 - 4294967296);havoc main_#t~nondet7; 493#L17 assume !!(main_~MAX~0 > 0); 496#L17-2 call main_~#str1~0.base, main_~#str1~0.offset := #Ultimate.allocOnStack(main_~MAX~0);call main_~#str2~0.base, main_~#str2~0.offset := #Ultimate.allocOnStack(main_~MAX~0);havoc main_~cont~0;havoc main_~i~0;havoc main_~j~0;main_~cont~0 := 0;main_~i~0 := 0; 497#L22-3 assume !!(main_~i~0 < main_~MAX~0);call write~int(main_#t~nondet9, main_~#str1~0.base, main_~#str1~0.offset + main_~i~0, 1);havoc main_#t~nondet9; 491#L22-2 main_#t~post8 := main_~i~0;main_~i~0 := 1 + main_#t~post8;havoc main_#t~post8; 492#L22-3 assume !!(main_~i~0 < main_~MAX~0);call write~int(main_#t~nondet9, main_~#str1~0.base, main_~#str1~0.offset + main_~i~0, 1);havoc main_#t~nondet9; 503#L22-2 main_#t~post8 := main_~i~0;main_~i~0 := 1 + main_#t~post8;havoc main_#t~post8; 502#L22-3 assume !(main_~i~0 < main_~MAX~0); 489#L22-4 call write~int(0, main_~#str1~0.base, main_~#str1~0.offset + (main_~MAX~0 - 1), 1);main_~j~0 := 0;main_~i~0 := main_~MAX~0 - 1; 490#L29-3 [2021-10-15 19:52:26,419 INFO L793 eck$LassoCheckResult]: Loop: 490#L29-3 assume !!(main_~i~0 >= 0);call main_#t~mem11 := read~int(main_~#str1~0.base, main_~#str1~0.offset, 1);call write~int(main_#t~mem11, main_~#str2~0.base, main_~#str2~0.offset + main_~j~0, 1);havoc main_#t~mem11;main_#t~post12 := main_~j~0;main_~j~0 := 1 + main_#t~post12;havoc main_#t~post12; 498#L29-2 main_#t~post10 := main_~i~0;main_~i~0 := main_#t~post10 - 1;havoc main_#t~post10; 490#L29-3 [2021-10-15 19:52:26,420 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-15 19:52:26,420 INFO L82 PathProgramCache]: Analyzing trace with hash -1899756335, now seen corresponding path program 2 times [2021-10-15 19:52:26,420 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-15 19:52:26,421 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1050715815] [2021-10-15 19:52:26,421 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-15 19:52:26,421 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-15 19:52:26,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-15 19:52:26,441 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-15 19:52:26,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-15 19:52:26,464 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-15 19:52:26,464 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-15 19:52:26,464 INFO L82 PathProgramCache]: Analyzing trace with hash 1955, now seen corresponding path program 3 times [2021-10-15 19:52:26,465 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-15 19:52:26,465 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1815502942] [2021-10-15 19:52:26,465 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-15 19:52:26,465 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-15 19:52:26,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-15 19:52:26,470 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-15 19:52:26,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-15 19:52:26,476 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-15 19:52:26,477 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-15 19:52:26,477 INFO L82 PathProgramCache]: Analyzing trace with hash -304736141, now seen corresponding path program 2 times [2021-10-15 19:52:26,477 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-15 19:52:26,477 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [544062190] [2021-10-15 19:52:26,478 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-15 19:52:26,478 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-15 19:52:26,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-15 19:52:26,498 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-15 19:52:26,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-15 19:52:26,540 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-15 19:52:27,651 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_229f6009-413d-4580-b932-763c06d460cc/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (29)] Ended with exit code 0 [2021-10-15 19:52:27,872 INFO L210 LassoAnalysis]: Preferences: [2021-10-15 19:52:27,873 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-10-15 19:52:27,873 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-10-15 19:52:27,873 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-10-15 19:52:27,873 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2021-10-15 19:52:27,873 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-15 19:52:27,873 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-10-15 19:52:27,873 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-10-15 19:52:27,874 INFO L133 ssoRankerPreferences]: Filename of dumped script: invert_string-1.c_Iteration4_Lasso [2021-10-15 19:52:27,874 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-10-15 19:52:27,874 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-10-15 19:52:27,885 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-15 19:52:27,887 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-15 19:52:27,890 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-15 19:52:27,892 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-15 19:52:27,895 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-15 19:52:27,900 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-15 19:52:27,902 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-15 19:52:27,904 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-15 19:52:27,907 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-15 19:52:27,909 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-15 19:52:27,912 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-15 19:52:27,915 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-15 19:52:27,917 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-15 19:52:27,918 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-15 19:52:28,212 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-15 19:52:28,219 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-15 19:52:28,221 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-15 19:52:28,486 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-10-15 19:52:28,487 INFO L490 LassoAnalysis]: Using template 'affine'. [2021-10-15 19:52:28,487 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-15 19:52:28,487 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_229f6009-413d-4580-b932-763c06d460cc/bin/uautomizer-hJ6jxDFKc3/z3 [2021-10-15 19:52:28,493 INFO L229 MonitoredProcess]: Starting monitored process 30 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_229f6009-413d-4580-b932-763c06d460cc/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-15 19:52:28,494 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_229f6009-413d-4580-b932-763c06d460cc/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (30)] Waiting until timeout for monitored process [2021-10-15 19:52:28,494 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 [2021-10-15 19:52:28,502 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-15 19:52:28,502 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-15 19:52:28,502 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-15 19:52:28,502 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-15 19:52:28,502 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-15 19:52:28,503 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-15 19:52:28,503 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-15 19:52:28,530 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-15 19:52:28,570 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_229f6009-413d-4580-b932-763c06d460cc/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (30)] Forceful destruction successful, exit code 0 [2021-10-15 19:52:28,570 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-15 19:52:28,570 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_229f6009-413d-4580-b932-763c06d460cc/bin/uautomizer-hJ6jxDFKc3/z3 [2021-10-15 19:52:28,571 INFO L229 MonitoredProcess]: Starting monitored process 31 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_229f6009-413d-4580-b932-763c06d460cc/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-15 19:52:28,573 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 [2021-10-15 19:52:28,583 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-15 19:52:28,583 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-15 19:52:28,584 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-15 19:52:28,584 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-15 19:52:28,586 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-15 19:52:28,586 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-15 19:52:28,589 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_229f6009-413d-4580-b932-763c06d460cc/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (31)] Waiting until timeout for monitored process [2021-10-15 19:52:28,610 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-15 19:52:28,651 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_229f6009-413d-4580-b932-763c06d460cc/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (31)] Forceful destruction successful, exit code 0 [2021-10-15 19:52:28,651 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-15 19:52:28,651 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_229f6009-413d-4580-b932-763c06d460cc/bin/uautomizer-hJ6jxDFKc3/z3 [2021-10-15 19:52:28,652 INFO L229 MonitoredProcess]: Starting monitored process 32 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_229f6009-413d-4580-b932-763c06d460cc/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-15 19:52:28,661 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 [2021-10-15 19:52:28,671 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-15 19:52:28,672 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-15 19:52:28,672 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-15 19:52:28,672 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-15 19:52:28,672 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-15 19:52:28,672 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-15 19:52:28,673 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-15 19:52:28,673 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_229f6009-413d-4580-b932-763c06d460cc/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (32)] Waiting until timeout for monitored process [2021-10-15 19:52:28,674 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-15 19:52:28,698 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_229f6009-413d-4580-b932-763c06d460cc/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (32)] Forceful destruction successful, exit code 0 [2021-10-15 19:52:28,698 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-15 19:52:28,698 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_229f6009-413d-4580-b932-763c06d460cc/bin/uautomizer-hJ6jxDFKc3/z3 [2021-10-15 19:52:28,699 INFO L229 MonitoredProcess]: Starting monitored process 33 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_229f6009-413d-4580-b932-763c06d460cc/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-15 19:52:28,699 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_229f6009-413d-4580-b932-763c06d460cc/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (33)] Waiting until timeout for monitored process [2021-10-15 19:52:28,700 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 [2021-10-15 19:52:28,708 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-15 19:52:28,708 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-15 19:52:28,708 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-15 19:52:28,708 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-15 19:52:28,708 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-15 19:52:28,709 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-15 19:52:28,709 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-15 19:52:28,710 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-15 19:52:28,731 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_229f6009-413d-4580-b932-763c06d460cc/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (33)] Forceful destruction successful, exit code 0 [2021-10-15 19:52:28,731 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-15 19:52:28,731 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_229f6009-413d-4580-b932-763c06d460cc/bin/uautomizer-hJ6jxDFKc3/z3 [2021-10-15 19:52:28,734 INFO L229 MonitoredProcess]: Starting monitored process 34 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_229f6009-413d-4580-b932-763c06d460cc/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-15 19:52:28,736 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_229f6009-413d-4580-b932-763c06d460cc/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (34)] Waiting until timeout for monitored process [2021-10-15 19:52:28,736 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 [2021-10-15 19:52:28,744 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-15 19:52:28,744 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-15 19:52:28,744 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-15 19:52:28,745 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-15 19:52:28,746 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-15 19:52:28,746 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-15 19:52:28,769 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-15 19:52:28,792 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_229f6009-413d-4580-b932-763c06d460cc/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (34)] Forceful destruction successful, exit code 0 [2021-10-15 19:52:28,793 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-15 19:52:28,793 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_229f6009-413d-4580-b932-763c06d460cc/bin/uautomizer-hJ6jxDFKc3/z3 [2021-10-15 19:52:28,795 INFO L229 MonitoredProcess]: Starting monitored process 35 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_229f6009-413d-4580-b932-763c06d460cc/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-15 19:52:28,798 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_229f6009-413d-4580-b932-763c06d460cc/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (35)] Waiting until timeout for monitored process [2021-10-15 19:52:28,798 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 [2021-10-15 19:52:28,806 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-15 19:52:28,806 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-15 19:52:28,806 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-15 19:52:28,806 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-15 19:52:28,806 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-15 19:52:28,807 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-15 19:52:28,807 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-15 19:52:28,808 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-15 19:52:28,828 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_229f6009-413d-4580-b932-763c06d460cc/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (35)] Ended with exit code 0 [2021-10-15 19:52:28,831 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-15 19:52:28,831 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_229f6009-413d-4580-b932-763c06d460cc/bin/uautomizer-hJ6jxDFKc3/z3 [2021-10-15 19:52:28,832 INFO L229 MonitoredProcess]: Starting monitored process 36 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_229f6009-413d-4580-b932-763c06d460cc/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-15 19:52:28,834 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_229f6009-413d-4580-b932-763c06d460cc/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (36)] Waiting until timeout for monitored process [2021-10-15 19:52:28,835 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 [2021-10-15 19:52:28,843 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-15 19:52:28,843 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-15 19:52:28,843 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-15 19:52:28,843 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-15 19:52:28,843 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-15 19:52:28,844 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-15 19:52:28,844 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-15 19:52:28,850 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-15 19:52:28,871 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_229f6009-413d-4580-b932-763c06d460cc/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (36)] Ended with exit code 0 [2021-10-15 19:52:28,871 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-15 19:52:28,871 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_229f6009-413d-4580-b932-763c06d460cc/bin/uautomizer-hJ6jxDFKc3/z3 [2021-10-15 19:52:28,872 INFO L229 MonitoredProcess]: Starting monitored process 37 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_229f6009-413d-4580-b932-763c06d460cc/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-15 19:52:28,873 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_229f6009-413d-4580-b932-763c06d460cc/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (37)] Waiting until timeout for monitored process [2021-10-15 19:52:28,874 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 [2021-10-15 19:52:28,882 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-15 19:52:28,882 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-15 19:52:28,882 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-15 19:52:28,882 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-15 19:52:28,882 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-15 19:52:28,882 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-15 19:52:28,882 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-15 19:52:28,883 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-15 19:52:28,907 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_229f6009-413d-4580-b932-763c06d460cc/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (37)] Forceful destruction successful, exit code 0 [2021-10-15 19:52:28,907 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-15 19:52:28,908 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_229f6009-413d-4580-b932-763c06d460cc/bin/uautomizer-hJ6jxDFKc3/z3 [2021-10-15 19:52:28,908 INFO L229 MonitoredProcess]: Starting monitored process 38 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_229f6009-413d-4580-b932-763c06d460cc/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-15 19:52:28,910 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_229f6009-413d-4580-b932-763c06d460cc/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (38)] Waiting until timeout for monitored process [2021-10-15 19:52:28,910 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 [2021-10-15 19:52:28,918 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-15 19:52:28,919 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-15 19:52:28,919 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-15 19:52:28,919 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-15 19:52:28,920 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-15 19:52:28,920 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-15 19:52:28,923 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-15 19:52:28,944 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_229f6009-413d-4580-b932-763c06d460cc/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (38)] Forceful destruction successful, exit code 0 [2021-10-15 19:52:28,945 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-15 19:52:28,945 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_229f6009-413d-4580-b932-763c06d460cc/bin/uautomizer-hJ6jxDFKc3/z3 [2021-10-15 19:52:28,946 INFO L229 MonitoredProcess]: Starting monitored process 39 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_229f6009-413d-4580-b932-763c06d460cc/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-15 19:52:28,948 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_229f6009-413d-4580-b932-763c06d460cc/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (39)] Waiting until timeout for monitored process [2021-10-15 19:52:28,949 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 [2021-10-15 19:52:28,957 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-15 19:52:28,957 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-15 19:52:28,957 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-15 19:52:28,957 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-15 19:52:28,957 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-15 19:52:28,958 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-15 19:52:28,958 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-15 19:52:28,962 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-15 19:52:28,983 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_229f6009-413d-4580-b932-763c06d460cc/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (39)] Ended with exit code 0 [2021-10-15 19:52:28,983 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-15 19:52:28,983 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_229f6009-413d-4580-b932-763c06d460cc/bin/uautomizer-hJ6jxDFKc3/z3 [2021-10-15 19:52:28,984 INFO L229 MonitoredProcess]: Starting monitored process 40 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_229f6009-413d-4580-b932-763c06d460cc/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-15 19:52:28,985 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_229f6009-413d-4580-b932-763c06d460cc/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (40)] Waiting until timeout for monitored process [2021-10-15 19:52:28,986 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 [2021-10-15 19:52:28,994 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-15 19:52:28,994 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-15 19:52:28,994 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-15 19:52:28,994 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-15 19:52:28,996 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-15 19:52:28,996 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-15 19:52:28,998 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-15 19:52:29,019 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_229f6009-413d-4580-b932-763c06d460cc/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (40)] Ended with exit code 0 [2021-10-15 19:52:29,020 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-15 19:52:29,020 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_229f6009-413d-4580-b932-763c06d460cc/bin/uautomizer-hJ6jxDFKc3/z3 [2021-10-15 19:52:29,021 INFO L229 MonitoredProcess]: Starting monitored process 41 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_229f6009-413d-4580-b932-763c06d460cc/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-15 19:52:29,022 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_229f6009-413d-4580-b932-763c06d460cc/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (41)] Waiting until timeout for monitored process [2021-10-15 19:52:29,022 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 [2021-10-15 19:52:29,030 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-15 19:52:29,030 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-15 19:52:29,030 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-15 19:52:29,030 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-15 19:52:29,031 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-15 19:52:29,031 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-15 19:52:29,031 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-15 19:52:29,032 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-15 19:52:29,053 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_229f6009-413d-4580-b932-763c06d460cc/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (41)] Forceful destruction successful, exit code 0 [2021-10-15 19:52:29,054 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-15 19:52:29,054 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_229f6009-413d-4580-b932-763c06d460cc/bin/uautomizer-hJ6jxDFKc3/z3 [2021-10-15 19:52:29,055 INFO L229 MonitoredProcess]: Starting monitored process 42 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_229f6009-413d-4580-b932-763c06d460cc/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-15 19:52:29,055 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_229f6009-413d-4580-b932-763c06d460cc/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (42)] Waiting until timeout for monitored process [2021-10-15 19:52:29,056 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 [2021-10-15 19:52:29,065 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-15 19:52:29,065 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-15 19:52:29,065 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-15 19:52:29,065 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-15 19:52:29,065 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-15 19:52:29,066 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-15 19:52:29,066 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-15 19:52:29,067 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-15 19:52:29,087 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_229f6009-413d-4580-b932-763c06d460cc/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (42)] Ended with exit code 0 [2021-10-15 19:52:29,088 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-15 19:52:29,088 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_229f6009-413d-4580-b932-763c06d460cc/bin/uautomizer-hJ6jxDFKc3/z3 [2021-10-15 19:52:29,089 INFO L229 MonitoredProcess]: Starting monitored process 43 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_229f6009-413d-4580-b932-763c06d460cc/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-15 19:52:29,090 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 [2021-10-15 19:52:29,090 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_229f6009-413d-4580-b932-763c06d460cc/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (43)] Waiting until timeout for monitored process [2021-10-15 19:52:29,098 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-15 19:52:29,098 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-15 19:52:29,098 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-15 19:52:29,099 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-15 19:52:29,100 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-15 19:52:29,100 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-15 19:52:29,102 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-15 19:52:29,124 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_229f6009-413d-4580-b932-763c06d460cc/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (43)] Ended with exit code 0 [2021-10-15 19:52:29,125 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-15 19:52:29,125 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_229f6009-413d-4580-b932-763c06d460cc/bin/uautomizer-hJ6jxDFKc3/z3 [2021-10-15 19:52:29,125 INFO L229 MonitoredProcess]: Starting monitored process 44 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_229f6009-413d-4580-b932-763c06d460cc/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-15 19:52:29,126 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_229f6009-413d-4580-b932-763c06d460cc/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (44)] Waiting until timeout for monitored process [2021-10-15 19:52:29,127 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 [2021-10-15 19:52:29,134 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-15 19:52:29,135 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-15 19:52:29,135 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-15 19:52:29,135 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-15 19:52:29,137 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-15 19:52:29,137 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-15 19:52:29,166 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-15 19:52:29,200 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_229f6009-413d-4580-b932-763c06d460cc/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (44)] Forceful destruction successful, exit code 0 [2021-10-15 19:52:29,200 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-15 19:52:29,200 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_229f6009-413d-4580-b932-763c06d460cc/bin/uautomizer-hJ6jxDFKc3/z3 [2021-10-15 19:52:29,201 INFO L229 MonitoredProcess]: Starting monitored process 45 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_229f6009-413d-4580-b932-763c06d460cc/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-15 19:52:29,202 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_229f6009-413d-4580-b932-763c06d460cc/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (45)] Waiting until timeout for monitored process [2021-10-15 19:52:29,205 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 [2021-10-15 19:52:29,212 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-15 19:52:29,213 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-15 19:52:29,213 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-15 19:52:29,213 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-15 19:52:29,214 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-15 19:52:29,214 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-15 19:52:29,217 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-15 19:52:29,238 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_229f6009-413d-4580-b932-763c06d460cc/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (45)] Ended with exit code 0 [2021-10-15 19:52:29,238 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-15 19:52:29,238 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_229f6009-413d-4580-b932-763c06d460cc/bin/uautomizer-hJ6jxDFKc3/z3 [2021-10-15 19:52:29,239 INFO L229 MonitoredProcess]: Starting monitored process 46 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_229f6009-413d-4580-b932-763c06d460cc/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-15 19:52:29,239 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_229f6009-413d-4580-b932-763c06d460cc/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (46)] Waiting until timeout for monitored process [2021-10-15 19:52:29,240 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 [2021-10-15 19:52:29,248 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-15 19:52:29,248 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-15 19:52:29,248 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-15 19:52:29,249 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-15 19:52:29,251 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-15 19:52:29,251 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-15 19:52:29,278 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-15 19:52:29,319 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_229f6009-413d-4580-b932-763c06d460cc/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (46)] Forceful destruction successful, exit code 0 [2021-10-15 19:52:29,320 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-15 19:52:29,320 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_229f6009-413d-4580-b932-763c06d460cc/bin/uautomizer-hJ6jxDFKc3/z3 [2021-10-15 19:52:29,321 INFO L229 MonitoredProcess]: Starting monitored process 47 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_229f6009-413d-4580-b932-763c06d460cc/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-15 19:52:29,327 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 [2021-10-15 19:52:29,338 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-15 19:52:29,338 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-15 19:52:29,339 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-15 19:52:29,339 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-15 19:52:29,339 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_229f6009-413d-4580-b932-763c06d460cc/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (47)] Waiting until timeout for monitored process [2021-10-15 19:52:29,341 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-15 19:52:29,341 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-15 19:52:29,358 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-15 19:52:29,384 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_229f6009-413d-4580-b932-763c06d460cc/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (47)] Ended with exit code 0 [2021-10-15 19:52:29,384 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-15 19:52:29,384 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_229f6009-413d-4580-b932-763c06d460cc/bin/uautomizer-hJ6jxDFKc3/z3 [2021-10-15 19:52:29,385 INFO L229 MonitoredProcess]: Starting monitored process 48 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_229f6009-413d-4580-b932-763c06d460cc/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-15 19:52:29,387 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_229f6009-413d-4580-b932-763c06d460cc/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (48)] Waiting until timeout for monitored process [2021-10-15 19:52:29,387 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 [2021-10-15 19:52:29,396 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-15 19:52:29,397 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-15 19:52:29,397 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-15 19:52:29,397 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-15 19:52:29,397 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-15 19:52:29,398 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-15 19:52:29,398 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-15 19:52:29,410 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-15 19:52:29,436 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_229f6009-413d-4580-b932-763c06d460cc/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (48)] Ended with exit code 0 [2021-10-15 19:52:29,436 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-15 19:52:29,436 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_229f6009-413d-4580-b932-763c06d460cc/bin/uautomizer-hJ6jxDFKc3/z3 [2021-10-15 19:52:29,437 INFO L229 MonitoredProcess]: Starting monitored process 49 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_229f6009-413d-4580-b932-763c06d460cc/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-15 19:52:29,438 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_229f6009-413d-4580-b932-763c06d460cc/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (49)] Waiting until timeout for monitored process [2021-10-15 19:52:29,438 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 [2021-10-15 19:52:29,447 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-15 19:52:29,448 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-15 19:52:29,448 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-15 19:52:29,448 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-15 19:52:29,448 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-15 19:52:29,448 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-15 19:52:29,449 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-15 19:52:29,450 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-15 19:52:29,474 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_229f6009-413d-4580-b932-763c06d460cc/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (49)] Ended with exit code 0 [2021-10-15 19:52:29,474 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-15 19:52:29,474 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_229f6009-413d-4580-b932-763c06d460cc/bin/uautomizer-hJ6jxDFKc3/z3 [2021-10-15 19:52:29,475 INFO L229 MonitoredProcess]: Starting monitored process 50 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_229f6009-413d-4580-b932-763c06d460cc/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-15 19:52:29,476 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_229f6009-413d-4580-b932-763c06d460cc/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (50)] Waiting until timeout for monitored process [2021-10-15 19:52:29,476 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 [2021-10-15 19:52:29,485 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-15 19:52:29,485 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-15 19:52:29,485 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-15 19:52:29,485 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-15 19:52:29,487 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-15 19:52:29,487 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-15 19:52:29,508 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-15 19:52:29,533 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_229f6009-413d-4580-b932-763c06d460cc/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (50)] Forceful destruction successful, exit code 0 [2021-10-15 19:52:29,533 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-15 19:52:29,534 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_229f6009-413d-4580-b932-763c06d460cc/bin/uautomizer-hJ6jxDFKc3/z3 [2021-10-15 19:52:29,534 INFO L229 MonitoredProcess]: Starting monitored process 51 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_229f6009-413d-4580-b932-763c06d460cc/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-15 19:52:29,535 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_229f6009-413d-4580-b932-763c06d460cc/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (51)] Waiting until timeout for monitored process [2021-10-15 19:52:29,536 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 [2021-10-15 19:52:29,545 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-15 19:52:29,545 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-15 19:52:29,545 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-15 19:52:29,545 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-15 19:52:29,545 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-15 19:52:29,546 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-15 19:52:29,546 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-15 19:52:29,548 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-15 19:52:29,572 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_229f6009-413d-4580-b932-763c06d460cc/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (51)] Ended with exit code 0 [2021-10-15 19:52:29,573 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-15 19:52:29,573 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_229f6009-413d-4580-b932-763c06d460cc/bin/uautomizer-hJ6jxDFKc3/z3 [2021-10-15 19:52:29,574 INFO L229 MonitoredProcess]: Starting monitored process 52 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_229f6009-413d-4580-b932-763c06d460cc/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-15 19:52:29,576 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_229f6009-413d-4580-b932-763c06d460cc/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (52)] Waiting until timeout for monitored process [2021-10-15 19:52:29,576 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 [2021-10-15 19:52:29,586 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-15 19:52:29,586 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-15 19:52:29,586 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-15 19:52:29,586 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-15 19:52:29,595 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-15 19:52:29,595 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-15 19:52:29,622 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2021-10-15 19:52:29,706 INFO L443 ModelExtractionUtils]: Simplification made 27 calls to the SMT solver. [2021-10-15 19:52:29,706 INFO L444 ModelExtractionUtils]: 4 out of 28 variables were initially zero. Simplification set additionally 21 variables to zero. [2021-10-15 19:52:29,706 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-15 19:52:29,707 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_229f6009-413d-4580-b932-763c06d460cc/bin/uautomizer-hJ6jxDFKc3/z3 [2021-10-15 19:52:29,714 INFO L229 MonitoredProcess]: Starting monitored process 53 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_229f6009-413d-4580-b932-763c06d460cc/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-15 19:52:29,716 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2021-10-15 19:52:29,722 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_229f6009-413d-4580-b932-763c06d460cc/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (53)] Waiting until timeout for monitored process [2021-10-15 19:52:29,727 INFO L438 nArgumentSynthesizer]: Removed 2 redundant supporting invariants from a total of 2. [2021-10-15 19:52:29,727 INFO L513 LassoAnalysis]: Proved termination. [2021-10-15 19:52:29,728 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~i~0) = 2*ULTIMATE.start_main_~i~0 + 1 Supporting invariants [] [2021-10-15 19:52:29,752 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_229f6009-413d-4580-b932-763c06d460cc/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (52)] Forceful destruction successful, exit code 0 [2021-10-15 19:52:29,824 INFO L297 tatePredicateManager]: 18 out of 18 supporting invariants were superfluous and have been removed [2021-10-15 19:52:29,839 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-15 19:52:29,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-15 19:52:29,887 INFO L263 TraceCheckSpWp]: Trace formula consists of 78 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-15 19:52:29,888 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-15 19:52:29,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-15 19:52:29,927 INFO L263 TraceCheckSpWp]: Trace formula consists of 16 conjuncts, 4 conjunts are in the unsatisfiable core [2021-10-15 19:52:29,927 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-15 19:52:29,945 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-15 19:52:29,946 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates [2021-10-15 19:52:29,946 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 21 states and 26 transitions. cyclomatic complexity: 9 Second operand has 3 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 3 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-15 19:52:29,962 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 21 states and 26 transitions. cyclomatic complexity: 9. Second operand has 3 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 3 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 25 states and 36 transitions. Complement of second has 7 states. [2021-10-15 19:52:29,962 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 [2021-10-15 19:52:29,963 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 3 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-15 19:52:29,963 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 11 transitions. [2021-10-15 19:52:29,963 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 11 transitions. Stem has 10 letters. Loop has 2 letters. [2021-10-15 19:52:29,964 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-15 19:52:29,964 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 11 transitions. Stem has 12 letters. Loop has 2 letters. [2021-10-15 19:52:29,964 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-15 19:52:29,964 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 11 transitions. Stem has 10 letters. Loop has 4 letters. [2021-10-15 19:52:29,965 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-15 19:52:29,965 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 25 states and 36 transitions. [2021-10-15 19:52:29,966 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2021-10-15 19:52:29,967 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 25 states to 22 states and 28 transitions. [2021-10-15 19:52:29,967 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 13 [2021-10-15 19:52:29,968 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 14 [2021-10-15 19:52:29,968 INFO L73 IsDeterministic]: Start isDeterministic. Operand 22 states and 28 transitions. [2021-10-15 19:52:29,968 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-15 19:52:29,968 INFO L681 BuchiCegarLoop]: Abstraction has 22 states and 28 transitions. [2021-10-15 19:52:29,969 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22 states and 28 transitions. [2021-10-15 19:52:29,970 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22 to 16. [2021-10-15 19:52:29,971 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16 states, 16 states have (on average 1.1875) internal successors, (19), 15 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-15 19:52:29,971 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 19 transitions. [2021-10-15 19:52:29,971 INFO L704 BuchiCegarLoop]: Abstraction has 16 states and 19 transitions. [2021-10-15 19:52:29,971 INFO L587 BuchiCegarLoop]: Abstraction has 16 states and 19 transitions. [2021-10-15 19:52:29,972 INFO L425 BuchiCegarLoop]: ======== Iteration 5============ [2021-10-15 19:52:29,972 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 16 states and 19 transitions. [2021-10-15 19:52:29,972 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2021-10-15 19:52:29,973 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-15 19:52:29,973 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-15 19:52:29,973 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-15 19:52:29,974 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2021-10-15 19:52:29,974 INFO L791 eck$LassoCheckResult]: Stem: 663#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string4.base, #t~string4.offset := #Ultimate.allocOnStack(2);call write~init~int(48, #t~string4.base, #t~string4.offset, 1);call write~init~int(0, #t~string4.base, 1 + #t~string4.offset, 1);call #t~string5.base, #t~string5.offset := #Ultimate.allocOnStack(18);call #t~string6.base, #t~string6.offset := #Ultimate.allocOnStack(12); 664#L-1 havoc main_#res;havoc main_#t~nondet7, main_#t~nondet9, main_#t~post8, main_#t~mem11, main_#t~post12, main_#t~post10, main_#t~mem14, main_#t~mem15, main_#t~post16, main_#t~post13, main_~MAX~0, main_~#str1~0.base, main_~#str1~0.offset, main_~#str2~0.base, main_~#str2~0.offset, main_~cont~0, main_~i~0, main_~j~0;main_~MAX~0 := (if main_#t~nondet7 % 4294967296 % 4294967296 <= 2147483647 then main_#t~nondet7 % 4294967296 % 4294967296 else main_#t~nondet7 % 4294967296 % 4294967296 - 4294967296);havoc main_#t~nondet7; 669#L17 assume !!(main_~MAX~0 > 0); 674#L17-2 call main_~#str1~0.base, main_~#str1~0.offset := #Ultimate.allocOnStack(main_~MAX~0);call main_~#str2~0.base, main_~#str2~0.offset := #Ultimate.allocOnStack(main_~MAX~0);havoc main_~cont~0;havoc main_~i~0;havoc main_~j~0;main_~cont~0 := 0;main_~i~0 := 0; 675#L22-3 assume !!(main_~i~0 < main_~MAX~0);call write~int(main_#t~nondet9, main_~#str1~0.base, main_~#str1~0.offset + main_~i~0, 1);havoc main_#t~nondet9; 670#L22-2 main_#t~post8 := main_~i~0;main_~i~0 := 1 + main_#t~post8;havoc main_#t~post8; 671#L22-3 assume !(main_~i~0 < main_~MAX~0); 667#L22-4 call write~int(0, main_~#str1~0.base, main_~#str1~0.offset + (main_~MAX~0 - 1), 1);main_~j~0 := 0;main_~i~0 := main_~MAX~0 - 1; 668#L29-3 assume !(main_~i~0 >= 0); 665#L29-4 main_~j~0 := main_~MAX~0 - 1;main_~i~0 := 0; 666#L35-3 [2021-10-15 19:52:29,974 INFO L793 eck$LassoCheckResult]: Loop: 666#L35-3 assume !!(main_~i~0 < main_~MAX~0);call main_#t~mem14 := read~int(main_~#str1~0.base, main_~#str1~0.offset + main_~i~0, 1);call main_#t~mem15 := read~int(main_~#str2~0.base, main_~#str2~0.offset + main_~j~0, 1);__VERIFIER_assert_#in~cond := (if main_#t~mem14 == main_#t~mem15 then 1 else 0);havoc __VERIFIER_assert_~cond;__VERIFIER_assert_~cond := __VERIFIER_assert_#in~cond; 672#L7 assume !(0 == __VERIFIER_assert_~cond); 673#L7-2 havoc main_#t~mem14;havoc main_#t~mem15;main_#t~post16 := main_~j~0;main_~j~0 := main_#t~post16 - 1;havoc main_#t~post16; 678#L35-2 main_#t~post13 := main_~i~0;main_~i~0 := 1 + main_#t~post13;havoc main_#t~post13; 666#L35-3 [2021-10-15 19:52:29,975 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-15 19:52:29,975 INFO L82 PathProgramCache]: Analyzing trace with hash -1899811625, now seen corresponding path program 1 times [2021-10-15 19:52:29,975 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-15 19:52:29,975 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [762321990] [2021-10-15 19:52:29,976 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-15 19:52:29,976 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-15 19:52:29,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-15 19:52:29,990 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_229f6009-413d-4580-b932-763c06d460cc/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (53)] Forceful destruction successful, exit code 0 [2021-10-15 19:52:30,028 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-10-15 19:52:30,029 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-15 19:52:30,029 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [762321990] [2021-10-15 19:52:30,029 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [762321990] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-15 19:52:30,029 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-15 19:52:30,030 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-10-15 19:52:30,030 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [483373184] [2021-10-15 19:52:30,030 INFO L796 eck$LassoCheckResult]: stem already infeasible [2021-10-15 19:52:30,031 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-15 19:52:30,031 INFO L82 PathProgramCache]: Analyzing trace with hash 2315850, now seen corresponding path program 1 times [2021-10-15 19:52:30,031 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-15 19:52:30,031 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [262099812] [2021-10-15 19:52:30,031 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-15 19:52:30,032 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-15 19:52:30,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-15 19:52:30,048 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-15 19:52:30,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-15 19:52:30,060 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-15 19:52:30,245 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-15 19:52:30,245 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-15 19:52:30,245 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-10-15 19:52:30,246 INFO L87 Difference]: Start difference. First operand 16 states and 19 transitions. cyclomatic complexity: 6 Second operand has 4 states, 4 states have (on average 2.5) internal successors, (10), 4 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-15 19:52:30,282 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-15 19:52:30,282 INFO L93 Difference]: Finished difference Result 16 states and 18 transitions. [2021-10-15 19:52:30,283 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-15 19:52:30,283 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 16 states and 18 transitions. [2021-10-15 19:52:30,283 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2021-10-15 19:52:30,284 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 16 states to 16 states and 18 transitions. [2021-10-15 19:52:30,284 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 12 [2021-10-15 19:52:30,284 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 12 [2021-10-15 19:52:30,284 INFO L73 IsDeterministic]: Start isDeterministic. Operand 16 states and 18 transitions. [2021-10-15 19:52:30,284 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-15 19:52:30,285 INFO L681 BuchiCegarLoop]: Abstraction has 16 states and 18 transitions. [2021-10-15 19:52:30,285 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16 states and 18 transitions. [2021-10-15 19:52:30,286 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16 to 16. [2021-10-15 19:52:30,286 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16 states, 16 states have (on average 1.125) internal successors, (18), 15 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-15 19:52:30,286 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 18 transitions. [2021-10-15 19:52:30,286 INFO L704 BuchiCegarLoop]: Abstraction has 16 states and 18 transitions. [2021-10-15 19:52:30,287 INFO L587 BuchiCegarLoop]: Abstraction has 16 states and 18 transitions. [2021-10-15 19:52:30,287 INFO L425 BuchiCegarLoop]: ======== Iteration 6============ [2021-10-15 19:52:30,287 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 16 states and 18 transitions. [2021-10-15 19:52:30,287 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2021-10-15 19:52:30,287 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-15 19:52:30,287 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-15 19:52:30,288 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-15 19:52:30,288 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2021-10-15 19:52:30,288 INFO L791 eck$LassoCheckResult]: Stem: 704#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string4.base, #t~string4.offset := #Ultimate.allocOnStack(2);call write~init~int(48, #t~string4.base, #t~string4.offset, 1);call write~init~int(0, #t~string4.base, 1 + #t~string4.offset, 1);call #t~string5.base, #t~string5.offset := #Ultimate.allocOnStack(18);call #t~string6.base, #t~string6.offset := #Ultimate.allocOnStack(12); 705#L-1 havoc main_#res;havoc main_#t~nondet7, main_#t~nondet9, main_#t~post8, main_#t~mem11, main_#t~post12, main_#t~post10, main_#t~mem14, main_#t~mem15, main_#t~post16, main_#t~post13, main_~MAX~0, main_~#str1~0.base, main_~#str1~0.offset, main_~#str2~0.base, main_~#str2~0.offset, main_~cont~0, main_~i~0, main_~j~0;main_~MAX~0 := (if main_#t~nondet7 % 4294967296 % 4294967296 <= 2147483647 then main_#t~nondet7 % 4294967296 % 4294967296 else main_#t~nondet7 % 4294967296 % 4294967296 - 4294967296);havoc main_#t~nondet7; 710#L17 assume !!(main_~MAX~0 > 0); 715#L17-2 call main_~#str1~0.base, main_~#str1~0.offset := #Ultimate.allocOnStack(main_~MAX~0);call main_~#str2~0.base, main_~#str2~0.offset := #Ultimate.allocOnStack(main_~MAX~0);havoc main_~cont~0;havoc main_~i~0;havoc main_~j~0;main_~cont~0 := 0;main_~i~0 := 0; 716#L22-3 assume !!(main_~i~0 < main_~MAX~0);call write~int(main_#t~nondet9, main_~#str1~0.base, main_~#str1~0.offset + main_~i~0, 1);havoc main_#t~nondet9; 711#L22-2 main_#t~post8 := main_~i~0;main_~i~0 := 1 + main_#t~post8;havoc main_#t~post8; 712#L22-3 assume !(main_~i~0 < main_~MAX~0); 708#L22-4 call write~int(0, main_~#str1~0.base, main_~#str1~0.offset + (main_~MAX~0 - 1), 1);main_~j~0 := 0;main_~i~0 := main_~MAX~0 - 1; 709#L29-3 assume !!(main_~i~0 >= 0);call main_#t~mem11 := read~int(main_~#str1~0.base, main_~#str1~0.offset, 1);call write~int(main_#t~mem11, main_~#str2~0.base, main_~#str2~0.offset + main_~j~0, 1);havoc main_#t~mem11;main_#t~post12 := main_~j~0;main_~j~0 := 1 + main_#t~post12;havoc main_#t~post12; 717#L29-2 main_#t~post10 := main_~i~0;main_~i~0 := main_#t~post10 - 1;havoc main_#t~post10; 718#L29-3 assume !(main_~i~0 >= 0); 706#L29-4 main_~j~0 := main_~MAX~0 - 1;main_~i~0 := 0; 707#L35-3 [2021-10-15 19:52:30,288 INFO L793 eck$LassoCheckResult]: Loop: 707#L35-3 assume !!(main_~i~0 < main_~MAX~0);call main_#t~mem14 := read~int(main_~#str1~0.base, main_~#str1~0.offset + main_~i~0, 1);call main_#t~mem15 := read~int(main_~#str2~0.base, main_~#str2~0.offset + main_~j~0, 1);__VERIFIER_assert_#in~cond := (if main_#t~mem14 == main_#t~mem15 then 1 else 0);havoc __VERIFIER_assert_~cond;__VERIFIER_assert_~cond := __VERIFIER_assert_#in~cond; 713#L7 assume !(0 == __VERIFIER_assert_~cond); 714#L7-2 havoc main_#t~mem14;havoc main_#t~mem15;main_#t~post16 := main_~j~0;main_~j~0 := main_#t~post16 - 1;havoc main_#t~post16; 719#L35-2 main_#t~post13 := main_~i~0;main_~i~0 := 1 + main_#t~post13;havoc main_#t~post13; 707#L35-3 [2021-10-15 19:52:30,289 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-15 19:52:30,289 INFO L82 PathProgramCache]: Analyzing trace with hash -357814151, now seen corresponding path program 1 times [2021-10-15 19:52:30,289 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-15 19:52:30,289 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [819422781] [2021-10-15 19:52:30,289 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-15 19:52:30,289 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-15 19:52:30,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-15 19:52:30,323 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-15 19:52:30,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-15 19:52:30,354 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-15 19:52:30,363 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-15 19:52:30,363 INFO L82 PathProgramCache]: Analyzing trace with hash 2315850, now seen corresponding path program 2 times [2021-10-15 19:52:30,364 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-15 19:52:30,364 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1978776517] [2021-10-15 19:52:30,364 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-15 19:52:30,364 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-15 19:52:30,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-15 19:52:30,375 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-15 19:52:30,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-15 19:52:30,391 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-15 19:52:30,391 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-15 19:52:30,392 INFO L82 PathProgramCache]: Analyzing trace with hash 1607633602, now seen corresponding path program 1 times [2021-10-15 19:52:30,392 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-15 19:52:30,393 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1846030531] [2021-10-15 19:52:30,393 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-15 19:52:30,393 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-15 19:52:30,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-15 19:52:30,417 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-15 19:52:30,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-15 19:52:30,440 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-15 19:52:31,982 INFO L210 LassoAnalysis]: Preferences: [2021-10-15 19:52:31,982 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-10-15 19:52:31,982 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-10-15 19:52:31,982 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-10-15 19:52:31,982 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2021-10-15 19:52:31,982 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-15 19:52:31,983 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-10-15 19:52:31,983 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-10-15 19:52:31,983 INFO L133 ssoRankerPreferences]: Filename of dumped script: invert_string-1.c_Iteration6_Lasso [2021-10-15 19:52:31,983 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-10-15 19:52:31,983 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-10-15 19:52:31,987 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-15 19:52:31,993 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-15 19:52:31,995 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-15 19:52:31,997 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-15 19:52:31,999 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-15 19:52:32,001 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-15 19:52:32,003 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-15 19:52:32,006 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-15 19:52:32,008 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-15 19:52:32,013 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-15 19:52:32,015 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-15 19:52:32,017 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-15 19:52:32,025 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-15 19:52:32,027 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-15 19:52:32,415 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-15 19:52:32,417 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-15 19:52:32,421 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-15 19:52:32,423 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-15 19:52:32,752 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-10-15 19:52:32,752 INFO L490 LassoAnalysis]: Using template 'affine'. [2021-10-15 19:52:32,753 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-15 19:52:32,753 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_229f6009-413d-4580-b932-763c06d460cc/bin/uautomizer-hJ6jxDFKc3/z3 [2021-10-15 19:52:32,763 INFO L229 MonitoredProcess]: Starting monitored process 54 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_229f6009-413d-4580-b932-763c06d460cc/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-15 19:52:32,764 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_229f6009-413d-4580-b932-763c06d460cc/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (54)] Waiting until timeout for monitored process [2021-10-15 19:52:32,765 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 [2021-10-15 19:52:32,774 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-15 19:52:32,775 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-15 19:52:32,775 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-15 19:52:32,775 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-15 19:52:32,775 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-15 19:52:32,775 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-15 19:52:32,775 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-15 19:52:32,784 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-15 19:52:32,808 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_229f6009-413d-4580-b932-763c06d460cc/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (54)] Forceful destruction successful, exit code 0 [2021-10-15 19:52:32,810 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-15 19:52:32,810 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_229f6009-413d-4580-b932-763c06d460cc/bin/uautomizer-hJ6jxDFKc3/z3 [2021-10-15 19:52:32,811 INFO L229 MonitoredProcess]: Starting monitored process 55 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_229f6009-413d-4580-b932-763c06d460cc/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-15 19:52:32,812 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_229f6009-413d-4580-b932-763c06d460cc/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (55)] Waiting until timeout for monitored process [2021-10-15 19:52:32,812 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 [2021-10-15 19:52:32,821 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-15 19:52:32,821 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-15 19:52:32,821 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-15 19:52:32,821 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-15 19:52:32,822 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-15 19:52:32,822 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-15 19:52:32,822 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-15 19:52:32,823 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-15 19:52:32,847 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_229f6009-413d-4580-b932-763c06d460cc/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (55)] Ended with exit code 0 [2021-10-15 19:52:32,847 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-15 19:52:32,847 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_229f6009-413d-4580-b932-763c06d460cc/bin/uautomizer-hJ6jxDFKc3/z3 [2021-10-15 19:52:32,848 INFO L229 MonitoredProcess]: Starting monitored process 56 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_229f6009-413d-4580-b932-763c06d460cc/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-15 19:52:32,849 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_229f6009-413d-4580-b932-763c06d460cc/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (56)] Waiting until timeout for monitored process [2021-10-15 19:52:32,849 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 [2021-10-15 19:52:32,858 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-15 19:52:32,858 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-15 19:52:32,859 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-15 19:52:32,859 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-15 19:52:32,859 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-15 19:52:32,859 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-15 19:52:32,859 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-15 19:52:32,860 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-15 19:52:32,885 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_229f6009-413d-4580-b932-763c06d460cc/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (56)] Forceful destruction successful, exit code 0 [2021-10-15 19:52:32,885 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-15 19:52:32,885 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_229f6009-413d-4580-b932-763c06d460cc/bin/uautomizer-hJ6jxDFKc3/z3 [2021-10-15 19:52:32,886 INFO L229 MonitoredProcess]: Starting monitored process 57 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_229f6009-413d-4580-b932-763c06d460cc/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-15 19:52:32,887 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_229f6009-413d-4580-b932-763c06d460cc/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (57)] Waiting until timeout for monitored process [2021-10-15 19:52:32,887 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 [2021-10-15 19:52:32,896 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-15 19:52:32,896 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-15 19:52:32,896 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-15 19:52:32,896 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-15 19:52:32,898 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-15 19:52:32,898 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-15 19:52:32,901 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-15 19:52:32,925 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_229f6009-413d-4580-b932-763c06d460cc/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (57)] Ended with exit code 0 [2021-10-15 19:52:32,925 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-15 19:52:32,926 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_229f6009-413d-4580-b932-763c06d460cc/bin/uautomizer-hJ6jxDFKc3/z3 [2021-10-15 19:52:32,926 INFO L229 MonitoredProcess]: Starting monitored process 58 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_229f6009-413d-4580-b932-763c06d460cc/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-15 19:52:32,927 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_229f6009-413d-4580-b932-763c06d460cc/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (58)] Waiting until timeout for monitored process [2021-10-15 19:52:32,928 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 [2021-10-15 19:52:32,937 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-15 19:52:32,937 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-15 19:52:32,937 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-15 19:52:32,937 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-15 19:52:32,937 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-15 19:52:32,938 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-15 19:52:32,938 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-15 19:52:32,946 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-15 19:52:32,970 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_229f6009-413d-4580-b932-763c06d460cc/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (58)] Ended with exit code 0 [2021-10-15 19:52:32,970 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-15 19:52:32,970 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_229f6009-413d-4580-b932-763c06d460cc/bin/uautomizer-hJ6jxDFKc3/z3 [2021-10-15 19:52:32,971 INFO L229 MonitoredProcess]: Starting monitored process 59 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_229f6009-413d-4580-b932-763c06d460cc/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-15 19:52:32,972 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_229f6009-413d-4580-b932-763c06d460cc/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (59)] Waiting until timeout for monitored process [2021-10-15 19:52:32,972 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 [2021-10-15 19:52:32,981 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-15 19:52:32,981 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-15 19:52:32,981 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-15 19:52:32,981 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-15 19:52:32,982 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-15 19:52:32,982 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-15 19:52:32,982 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-15 19:52:33,006 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-15 19:52:33,030 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_229f6009-413d-4580-b932-763c06d460cc/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (59)] Forceful destruction successful, exit code 0 [2021-10-15 19:52:33,030 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-15 19:52:33,031 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_229f6009-413d-4580-b932-763c06d460cc/bin/uautomizer-hJ6jxDFKc3/z3 [2021-10-15 19:52:33,031 INFO L229 MonitoredProcess]: Starting monitored process 60 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_229f6009-413d-4580-b932-763c06d460cc/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-15 19:52:33,032 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_229f6009-413d-4580-b932-763c06d460cc/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (60)] Waiting until timeout for monitored process [2021-10-15 19:52:33,033 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 [2021-10-15 19:52:33,042 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-15 19:52:33,042 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-15 19:52:33,042 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-15 19:52:33,042 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-15 19:52:33,043 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-15 19:52:33,043 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-15 19:52:33,046 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-15 19:52:33,070 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_229f6009-413d-4580-b932-763c06d460cc/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (60)] Ended with exit code 0 [2021-10-15 19:52:33,070 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-15 19:52:33,071 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_229f6009-413d-4580-b932-763c06d460cc/bin/uautomizer-hJ6jxDFKc3/z3 [2021-10-15 19:52:33,071 INFO L229 MonitoredProcess]: Starting monitored process 61 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_229f6009-413d-4580-b932-763c06d460cc/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-15 19:52:33,073 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_229f6009-413d-4580-b932-763c06d460cc/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (61)] Waiting until timeout for monitored process [2021-10-15 19:52:33,074 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 [2021-10-15 19:52:33,083 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-15 19:52:33,083 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-15 19:52:33,083 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-15 19:52:33,083 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-15 19:52:33,084 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-15 19:52:33,084 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-15 19:52:33,087 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-15 19:52:33,114 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_229f6009-413d-4580-b932-763c06d460cc/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (61)] Ended with exit code 0 [2021-10-15 19:52:33,114 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-15 19:52:33,114 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_229f6009-413d-4580-b932-763c06d460cc/bin/uautomizer-hJ6jxDFKc3/z3 [2021-10-15 19:52:33,117 INFO L229 MonitoredProcess]: Starting monitored process 62 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_229f6009-413d-4580-b932-763c06d460cc/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-15 19:52:33,118 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 [2021-10-15 19:52:33,121 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_229f6009-413d-4580-b932-763c06d460cc/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (62)] Waiting until timeout for monitored process [2021-10-15 19:52:33,128 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-15 19:52:33,128 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-15 19:52:33,128 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-15 19:52:33,128 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-15 19:52:33,128 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-15 19:52:33,129 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-15 19:52:33,130 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-15 19:52:33,158 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-15 19:52:33,185 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_229f6009-413d-4580-b932-763c06d460cc/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (62)] Ended with exit code 0 [2021-10-15 19:52:33,186 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-15 19:52:33,186 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_229f6009-413d-4580-b932-763c06d460cc/bin/uautomizer-hJ6jxDFKc3/z3 [2021-10-15 19:52:33,187 INFO L229 MonitoredProcess]: Starting monitored process 63 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_229f6009-413d-4580-b932-763c06d460cc/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-15 19:52:33,188 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_229f6009-413d-4580-b932-763c06d460cc/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (63)] Waiting until timeout for monitored process [2021-10-15 19:52:33,188 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 [2021-10-15 19:52:33,197 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-15 19:52:33,198 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-15 19:52:33,198 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-15 19:52:33,198 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-15 19:52:33,198 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-15 19:52:33,198 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-15 19:52:33,198 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-15 19:52:33,199 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-15 19:52:33,224 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_229f6009-413d-4580-b932-763c06d460cc/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (63)] Ended with exit code 0 [2021-10-15 19:52:33,224 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-15 19:52:33,224 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_229f6009-413d-4580-b932-763c06d460cc/bin/uautomizer-hJ6jxDFKc3/z3 [2021-10-15 19:52:33,225 INFO L229 MonitoredProcess]: Starting monitored process 64 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_229f6009-413d-4580-b932-763c06d460cc/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-15 19:52:33,226 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_229f6009-413d-4580-b932-763c06d460cc/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (64)] Waiting until timeout for monitored process [2021-10-15 19:52:33,226 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 [2021-10-15 19:52:33,235 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-15 19:52:33,236 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-15 19:52:33,236 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-15 19:52:33,236 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-15 19:52:33,237 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-15 19:52:33,238 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-15 19:52:33,261 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-15 19:52:33,284 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_229f6009-413d-4580-b932-763c06d460cc/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (64)] Ended with exit code 0 [2021-10-15 19:52:33,284 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-15 19:52:33,285 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_229f6009-413d-4580-b932-763c06d460cc/bin/uautomizer-hJ6jxDFKc3/z3 [2021-10-15 19:52:33,285 INFO L229 MonitoredProcess]: Starting monitored process 65 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_229f6009-413d-4580-b932-763c06d460cc/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-15 19:52:33,286 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_229f6009-413d-4580-b932-763c06d460cc/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (65)] Waiting until timeout for monitored process [2021-10-15 19:52:33,287 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 [2021-10-15 19:52:33,295 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-15 19:52:33,295 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-15 19:52:33,295 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-15 19:52:33,295 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-15 19:52:33,295 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-15 19:52:33,296 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-15 19:52:33,296 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-15 19:52:33,297 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-15 19:52:33,321 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_229f6009-413d-4580-b932-763c06d460cc/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (65)] Forceful destruction successful, exit code 0 [2021-10-15 19:52:33,321 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-15 19:52:33,321 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_229f6009-413d-4580-b932-763c06d460cc/bin/uautomizer-hJ6jxDFKc3/z3 [2021-10-15 19:52:33,322 INFO L229 MonitoredProcess]: Starting monitored process 66 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_229f6009-413d-4580-b932-763c06d460cc/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-15 19:52:33,323 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_229f6009-413d-4580-b932-763c06d460cc/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (66)] Waiting until timeout for monitored process [2021-10-15 19:52:33,323 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 [2021-10-15 19:52:33,332 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-15 19:52:33,332 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-15 19:52:33,333 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-15 19:52:33,333 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-15 19:52:33,333 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-15 19:52:33,333 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-15 19:52:33,334 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-15 19:52:33,350 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-15 19:52:33,375 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_229f6009-413d-4580-b932-763c06d460cc/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (66)] Ended with exit code 0 [2021-10-15 19:52:33,375 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-15 19:52:33,375 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_229f6009-413d-4580-b932-763c06d460cc/bin/uautomizer-hJ6jxDFKc3/z3 [2021-10-15 19:52:33,376 INFO L229 MonitoredProcess]: Starting monitored process 67 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_229f6009-413d-4580-b932-763c06d460cc/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-15 19:52:33,381 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_229f6009-413d-4580-b932-763c06d460cc/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (67)] Waiting until timeout for monitored process [2021-10-15 19:52:33,381 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 [2021-10-15 19:52:33,391 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-15 19:52:33,391 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-15 19:52:33,391 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-15 19:52:33,391 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-15 19:52:33,394 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-15 19:52:33,394 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-15 19:52:33,400 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-15 19:52:33,423 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_229f6009-413d-4580-b932-763c06d460cc/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (67)] Forceful destruction successful, exit code 0 [2021-10-15 19:52:33,424 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-15 19:52:33,424 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_229f6009-413d-4580-b932-763c06d460cc/bin/uautomizer-hJ6jxDFKc3/z3 [2021-10-15 19:52:33,425 INFO L229 MonitoredProcess]: Starting monitored process 68 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_229f6009-413d-4580-b932-763c06d460cc/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-15 19:52:33,425 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_229f6009-413d-4580-b932-763c06d460cc/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (68)] Waiting until timeout for monitored process [2021-10-15 19:52:33,426 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 [2021-10-15 19:52:33,435 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-15 19:52:33,435 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-15 19:52:33,435 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-15 19:52:33,435 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-15 19:52:33,437 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-15 19:52:33,437 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-15 19:52:33,440 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-15 19:52:33,463 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_229f6009-413d-4580-b932-763c06d460cc/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (68)] Ended with exit code 0 [2021-10-15 19:52:33,463 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-15 19:52:33,464 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_229f6009-413d-4580-b932-763c06d460cc/bin/uautomizer-hJ6jxDFKc3/z3 [2021-10-15 19:52:33,465 INFO L229 MonitoredProcess]: Starting monitored process 69 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_229f6009-413d-4580-b932-763c06d460cc/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-15 19:52:33,465 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_229f6009-413d-4580-b932-763c06d460cc/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (69)] Waiting until timeout for monitored process [2021-10-15 19:52:33,466 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 [2021-10-15 19:52:33,475 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-15 19:52:33,475 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-15 19:52:33,475 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-15 19:52:33,475 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-15 19:52:33,477 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-15 19:52:33,477 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-15 19:52:33,493 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-15 19:52:33,517 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_229f6009-413d-4580-b932-763c06d460cc/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (69)] Forceful destruction successful, exit code 0 [2021-10-15 19:52:33,517 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-15 19:52:33,518 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_229f6009-413d-4580-b932-763c06d460cc/bin/uautomizer-hJ6jxDFKc3/z3 [2021-10-15 19:52:33,518 INFO L229 MonitoredProcess]: Starting monitored process 70 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_229f6009-413d-4580-b932-763c06d460cc/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-15 19:52:33,528 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_229f6009-413d-4580-b932-763c06d460cc/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (70)] Waiting until timeout for monitored process [2021-10-15 19:52:33,528 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 [2021-10-15 19:52:33,537 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-15 19:52:33,537 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-15 19:52:33,537 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-15 19:52:33,537 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-15 19:52:33,539 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-15 19:52:33,539 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-15 19:52:33,547 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-15 19:52:33,571 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_229f6009-413d-4580-b932-763c06d460cc/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (70)] Forceful destruction successful, exit code 0 [2021-10-15 19:52:33,571 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-15 19:52:33,571 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_229f6009-413d-4580-b932-763c06d460cc/bin/uautomizer-hJ6jxDFKc3/z3 [2021-10-15 19:52:33,572 INFO L229 MonitoredProcess]: Starting monitored process 71 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_229f6009-413d-4580-b932-763c06d460cc/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-15 19:52:33,573 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_229f6009-413d-4580-b932-763c06d460cc/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (71)] Waiting until timeout for monitored process [2021-10-15 19:52:33,573 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 [2021-10-15 19:52:33,582 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-15 19:52:33,582 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-15 19:52:33,582 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-15 19:52:33,582 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-15 19:52:33,584 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-15 19:52:33,584 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-15 19:52:33,587 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-15 19:52:33,611 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_229f6009-413d-4580-b932-763c06d460cc/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (71)] Ended with exit code 0 [2021-10-15 19:52:33,611 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-15 19:52:33,612 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_229f6009-413d-4580-b932-763c06d460cc/bin/uautomizer-hJ6jxDFKc3/z3 [2021-10-15 19:52:33,612 INFO L229 MonitoredProcess]: Starting monitored process 72 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_229f6009-413d-4580-b932-763c06d460cc/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-15 19:52:33,614 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_229f6009-413d-4580-b932-763c06d460cc/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (72)] Waiting until timeout for monitored process [2021-10-15 19:52:33,614 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 [2021-10-15 19:52:33,625 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-15 19:52:33,625 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-15 19:52:33,625 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-15 19:52:33,626 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-15 19:52:33,627 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-15 19:52:33,627 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-15 19:52:33,631 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-15 19:52:33,656 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_229f6009-413d-4580-b932-763c06d460cc/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (72)] Ended with exit code 0 [2021-10-15 19:52:33,656 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-15 19:52:33,656 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_229f6009-413d-4580-b932-763c06d460cc/bin/uautomizer-hJ6jxDFKc3/z3 [2021-10-15 19:52:33,657 INFO L229 MonitoredProcess]: Starting monitored process 73 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_229f6009-413d-4580-b932-763c06d460cc/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-15 19:52:33,658 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_229f6009-413d-4580-b932-763c06d460cc/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (73)] Waiting until timeout for monitored process [2021-10-15 19:52:33,658 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 [2021-10-15 19:52:33,667 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-15 19:52:33,667 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-15 19:52:33,667 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-15 19:52:33,668 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-15 19:52:33,669 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-15 19:52:33,669 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-15 19:52:33,672 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-15 19:52:33,696 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_229f6009-413d-4580-b932-763c06d460cc/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (73)] Forceful destruction successful, exit code 0 [2021-10-15 19:52:33,696 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-15 19:52:33,697 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_229f6009-413d-4580-b932-763c06d460cc/bin/uautomizer-hJ6jxDFKc3/z3 [2021-10-15 19:52:33,697 INFO L229 MonitoredProcess]: Starting monitored process 74 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_229f6009-413d-4580-b932-763c06d460cc/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-15 19:52:33,699 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_229f6009-413d-4580-b932-763c06d460cc/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (74)] Waiting until timeout for monitored process [2021-10-15 19:52:33,700 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 [2021-10-15 19:52:33,709 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-15 19:52:33,709 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-15 19:52:33,709 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-15 19:52:33,709 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-15 19:52:33,709 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-15 19:52:33,709 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-15 19:52:33,710 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-15 19:52:33,711 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-15 19:52:33,734 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_229f6009-413d-4580-b932-763c06d460cc/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (74)] Ended with exit code 0 [2021-10-15 19:52:33,734 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-15 19:52:33,734 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_229f6009-413d-4580-b932-763c06d460cc/bin/uautomizer-hJ6jxDFKc3/z3 [2021-10-15 19:52:33,735 INFO L229 MonitoredProcess]: Starting monitored process 75 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_229f6009-413d-4580-b932-763c06d460cc/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-15 19:52:33,749 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_229f6009-413d-4580-b932-763c06d460cc/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (75)] Waiting until timeout for monitored process [2021-10-15 19:52:33,749 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 [2021-10-15 19:52:33,758 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-15 19:52:33,758 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-15 19:52:33,758 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-15 19:52:33,758 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-15 19:52:33,759 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-15 19:52:33,759 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-15 19:52:33,762 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-15 19:52:33,786 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_229f6009-413d-4580-b932-763c06d460cc/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (75)] Ended with exit code 0 [2021-10-15 19:52:33,786 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-15 19:52:33,786 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_229f6009-413d-4580-b932-763c06d460cc/bin/uautomizer-hJ6jxDFKc3/z3 [2021-10-15 19:52:33,787 INFO L229 MonitoredProcess]: Starting monitored process 76 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_229f6009-413d-4580-b932-763c06d460cc/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-15 19:52:33,788 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_229f6009-413d-4580-b932-763c06d460cc/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (76)] Waiting until timeout for monitored process [2021-10-15 19:52:33,788 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 [2021-10-15 19:52:33,798 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-15 19:52:33,798 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-15 19:52:33,798 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-15 19:52:33,798 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-15 19:52:33,800 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-15 19:52:33,800 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-15 19:52:33,804 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-15 19:52:33,828 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_229f6009-413d-4580-b932-763c06d460cc/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (76)] Ended with exit code 0 [2021-10-15 19:52:33,828 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-15 19:52:33,829 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_229f6009-413d-4580-b932-763c06d460cc/bin/uautomizer-hJ6jxDFKc3/z3 [2021-10-15 19:52:33,829 INFO L229 MonitoredProcess]: Starting monitored process 77 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_229f6009-413d-4580-b932-763c06d460cc/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-15 19:52:33,830 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_229f6009-413d-4580-b932-763c06d460cc/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (77)] Waiting until timeout for monitored process [2021-10-15 19:52:33,831 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 [2021-10-15 19:52:33,839 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-15 19:52:33,840 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-15 19:52:33,840 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-15 19:52:33,840 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-15 19:52:33,841 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-15 19:52:33,841 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-15 19:52:33,874 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-15 19:52:33,898 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_229f6009-413d-4580-b932-763c06d460cc/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (77)] Ended with exit code 0 [2021-10-15 19:52:33,899 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-15 19:52:33,899 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_229f6009-413d-4580-b932-763c06d460cc/bin/uautomizer-hJ6jxDFKc3/z3 [2021-10-15 19:52:33,900 INFO L229 MonitoredProcess]: Starting monitored process 78 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_229f6009-413d-4580-b932-763c06d460cc/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-15 19:52:33,900 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_229f6009-413d-4580-b932-763c06d460cc/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (78)] Waiting until timeout for monitored process [2021-10-15 19:52:33,901 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 [2021-10-15 19:52:33,910 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-15 19:52:33,910 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-15 19:52:33,910 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-15 19:52:33,911 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-15 19:52:33,918 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-15 19:52:33,918 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-15 19:52:33,934 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2021-10-15 19:52:33,983 INFO L443 ModelExtractionUtils]: Simplification made 15 calls to the SMT solver. [2021-10-15 19:52:33,983 INFO L444 ModelExtractionUtils]: 4 out of 28 variables were initially zero. Simplification set additionally 20 variables to zero. [2021-10-15 19:52:33,983 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-15 19:52:33,983 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_229f6009-413d-4580-b932-763c06d460cc/bin/uautomizer-hJ6jxDFKc3/z3 [2021-10-15 19:52:33,984 INFO L229 MonitoredProcess]: Starting monitored process 79 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_229f6009-413d-4580-b932-763c06d460cc/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-15 19:52:33,985 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_229f6009-413d-4580-b932-763c06d460cc/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (79)] Waiting until timeout for monitored process [2021-10-15 19:52:33,985 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2021-10-15 19:52:33,995 INFO L438 nArgumentSynthesizer]: Removed 2 redundant supporting invariants from a total of 2. [2021-10-15 19:52:33,995 INFO L513 LassoAnalysis]: Proved termination. [2021-10-15 19:52:33,995 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~#str2~0.offset, ULTIMATE.start_main_~j~0, v_rep(select #length ULTIMATE.start_main_~#str2~0.base)_4) = 2*ULTIMATE.start_main_~#str2~0.offset + 2*ULTIMATE.start_main_~j~0 + 1*v_rep(select #length ULTIMATE.start_main_~#str2~0.base)_4 Supporting invariants [] [2021-10-15 19:52:34,020 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_229f6009-413d-4580-b932-763c06d460cc/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (78)] Forceful destruction successful, exit code 0 [2021-10-15 19:52:34,070 INFO L297 tatePredicateManager]: 17 out of 17 supporting invariants were superfluous and have been removed [2021-10-15 19:52:34,082 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-15 19:52:34,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-15 19:52:34,098 INFO L263 TraceCheckSpWp]: Trace formula consists of 89 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-15 19:52:34,099 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-15 19:52:34,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-15 19:52:34,159 INFO L263 TraceCheckSpWp]: Trace formula consists of 24 conjuncts, 5 conjunts are in the unsatisfiable core [2021-10-15 19:52:34,160 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-15 19:52:34,258 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-15 19:52:34,259 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 3 loop predicates [2021-10-15 19:52:34,259 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 16 states and 18 transitions. cyclomatic complexity: 5 Second operand has 4 states, 4 states have (on average 4.0) internal successors, (16), 4 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-15 19:52:34,269 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 16 states and 18 transitions. cyclomatic complexity: 5. Second operand has 4 states, 4 states have (on average 4.0) internal successors, (16), 4 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 21 states and 24 transitions. Complement of second has 6 states. [2021-10-15 19:52:34,270 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 [2021-10-15 19:52:34,270 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4 states, 4 states have (on average 4.0) internal successors, (16), 4 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-15 19:52:34,270 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 17 transitions. [2021-10-15 19:52:34,270 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 17 transitions. Stem has 12 letters. Loop has 4 letters. [2021-10-15 19:52:34,271 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-15 19:52:34,271 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 17 transitions. Stem has 16 letters. Loop has 4 letters. [2021-10-15 19:52:34,271 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-15 19:52:34,272 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 17 transitions. Stem has 12 letters. Loop has 8 letters. [2021-10-15 19:52:34,272 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-15 19:52:34,272 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 21 states and 24 transitions. [2021-10-15 19:52:34,273 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2021-10-15 19:52:34,273 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 21 states to 0 states and 0 transitions. [2021-10-15 19:52:34,274 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2021-10-15 19:52:34,274 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2021-10-15 19:52:34,274 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2021-10-15 19:52:34,274 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-15 19:52:34,274 INFO L681 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-10-15 19:52:34,274 INFO L704 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-10-15 19:52:34,275 INFO L587 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-10-15 19:52:34,275 INFO L425 BuchiCegarLoop]: ======== Iteration 7============ [2021-10-15 19:52:34,275 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2021-10-15 19:52:34,275 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2021-10-15 19:52:34,275 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2021-10-15 19:52:34,282 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 15.10 07:52:34 BoogieIcfgContainer [2021-10-15 19:52:34,282 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2021-10-15 19:52:34,283 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-15 19:52:34,283 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-15 19:52:34,283 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-15 19:52:34,284 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 07:52:17" (3/4) ... [2021-10-15 19:52:34,287 INFO L140 WitnessPrinter]: No result that supports witness generation found [2021-10-15 19:52:34,288 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-15 19:52:34,289 INFO L168 Benchmark]: Toolchain (without parser) took 17452.07 ms. Allocated memory was 102.8 MB in the beginning and 176.2 MB in the end (delta: 73.4 MB). Free memory was 69.0 MB in the beginning and 121.4 MB in the end (delta: -52.5 MB). Peak memory consumption was 21.1 MB. Max. memory is 16.1 GB. [2021-10-15 19:52:34,290 INFO L168 Benchmark]: CDTParser took 0.23 ms. Allocated memory is still 102.8 MB. Free memory is still 56.7 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-10-15 19:52:34,290 INFO L168 Benchmark]: CACSL2BoogieTranslator took 307.76 ms. Allocated memory was 102.8 MB in the beginning and 146.8 MB in the end (delta: 44.0 MB). Free memory was 68.7 MB in the beginning and 120.9 MB in the end (delta: -52.2 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2021-10-15 19:52:34,291 INFO L168 Benchmark]: Boogie Procedure Inliner took 44.82 ms. Allocated memory is still 146.8 MB. Free memory was 120.9 MB in the beginning and 119.6 MB in the end (delta: 1.3 MB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-15 19:52:34,292 INFO L168 Benchmark]: Boogie Preprocessor took 30.52 ms. Allocated memory is still 146.8 MB. Free memory was 119.6 MB in the beginning and 118.2 MB in the end (delta: 1.4 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-15 19:52:34,292 INFO L168 Benchmark]: RCFGBuilder took 475.38 ms. Allocated memory is still 146.8 MB. Free memory was 118.2 MB in the beginning and 107.1 MB in the end (delta: 11.1 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2021-10-15 19:52:34,293 INFO L168 Benchmark]: BuchiAutomizer took 16581.38 ms. Allocated memory was 146.8 MB in the beginning and 176.2 MB in the end (delta: 29.4 MB). Free memory was 107.1 MB in the beginning and 121.4 MB in the end (delta: -14.4 MB). Peak memory consumption was 17.9 MB. Max. memory is 16.1 GB. [2021-10-15 19:52:34,293 INFO L168 Benchmark]: Witness Printer took 5.12 ms. Allocated memory is still 176.2 MB. Free memory is still 121.4 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-10-15 19:52:34,296 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.23 ms. Allocated memory is still 102.8 MB. Free memory is still 56.7 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 307.76 ms. Allocated memory was 102.8 MB in the beginning and 146.8 MB in the end (delta: 44.0 MB). Free memory was 68.7 MB in the beginning and 120.9 MB in the end (delta: -52.2 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 44.82 ms. Allocated memory is still 146.8 MB. Free memory was 120.9 MB in the beginning and 119.6 MB in the end (delta: 1.3 MB). There was no memory consumed. Max. memory is 16.1 GB. * Boogie Preprocessor took 30.52 ms. Allocated memory is still 146.8 MB. Free memory was 119.6 MB in the beginning and 118.2 MB in the end (delta: 1.4 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 475.38 ms. Allocated memory is still 146.8 MB. Free memory was 118.2 MB in the beginning and 107.1 MB in the end (delta: 11.1 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * BuchiAutomizer took 16581.38 ms. Allocated memory was 146.8 MB in the beginning and 176.2 MB in the end (delta: 29.4 MB). Free memory was 107.1 MB in the beginning and 121.4 MB in the end (delta: -14.4 MB). Peak memory consumption was 17.9 MB. Max. memory is 16.1 GB. * Witness Printer took 5.12 ms. Allocated memory is still 176.2 MB. Free memory is still 121.4 MB. There was no memory consumed. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 6 terminating modules (2 trivial, 4 deterministic, 0 nondeterministic). One deterministic module has affine ranking function MAX + -1 * i and consists of 5 locations. One deterministic module has affine ranking function -2 * j + 1 and consists of 8 locations. One deterministic module has affine ranking function 2 * i + 1 and consists of 4 locations. One deterministic module has affine ranking function 2 * str2 + 2 * j + unknown-#length-unknown[str2] and consists of 4 locations. 2 modules have a trivial ranking function, the largest among these consists of 4 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 16.5s and 7 iterations. TraceHistogramMax:2. Analysis of lassos took 15.0s. Construction of modules took 0.1s. Büchi inclusion checks took 1.1s. Highest rank in rank-based complementation 3. Minimization of det autom 6. Minimization of nondet autom 0. Automata minimization 27.8ms AutomataMinimizationTime, 5 MinimizatonAttempts, 16 StatesRemovedByMinimization, 3 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 21 states and ocurred in iteration 3. Nontrivial modules had stage [3, 1, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 53 SDtfs, 88 SDslu, 21 SDs, 0 SdLazy, 110 SolverSat, 33 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 161.1ms Time LassoAnalysisResults: nont0 unkn0 SFLI0 SFLT0 conc0 concLT0 SILN0 SILU2 SILI0 SILT0 lasso4 LassoPreprocessingBenchmarks: Lassos: inital272 mio100 ax100 hnf100 lsp93 ukn50 mio100 lsp52 div137 bol100 ite100 ukn100 eq160 hnf82 smp94 dnf100 smp100 tf100 neg100 sie102 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 32ms VariablesStem: 1 VariablesLoop: 0 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 2 MotzkinApplications: 6 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 0 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 0 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.0s - TerminationAnalysisResult: Termination proven Buchi Automizer proved that your program is terminating RESULT: Ultimate proved your program to be correct! [2021-10-15 19:52:34,332 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_229f6009-413d-4580-b932-763c06d460cc/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (79)] Forceful destruction successful, exit code 0 [2021-10-15 19:52:34,540 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_229f6009-413d-4580-b932-763c06d460cc/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Ended with exit code 0 Received shutdown request...