./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/ldv-regression/ex3_forlist.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version b2eff8ba Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79bdf90d-d18c-4543-ae94-8485702dc626/bin/uautomizer-GMMbpWq8iD/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79bdf90d-d18c-4543-ae94-8485702dc626/bin/uautomizer-GMMbpWq8iD/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79bdf90d-d18c-4543-ae94-8485702dc626/bin/uautomizer-GMMbpWq8iD/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79bdf90d-d18c-4543-ae94-8485702dc626/bin/uautomizer-GMMbpWq8iD/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/ldv-regression/ex3_forlist.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79bdf90d-d18c-4543-ae94-8485702dc626/bin/uautomizer-GMMbpWq8iD/config/svcomp-Termination-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79bdf90d-d18c-4543-ae94-8485702dc626/bin/uautomizer-GMMbpWq8iD --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 33fdb29d081e8788960943f1182fbfb10ca7dcdfe7c31b22aaab16bda45fd1b8 ............................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................. Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.2.1-dev-b2eff8b [2021-10-28 23:49:11,391 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-28 23:49:11,395 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-28 23:49:11,459 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-28 23:49:11,460 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-28 23:49:11,467 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-28 23:49:11,469 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-28 23:49:11,474 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-28 23:49:11,477 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-28 23:49:11,484 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-28 23:49:11,486 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-28 23:49:11,488 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-28 23:49:11,489 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-28 23:49:11,492 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-28 23:49:11,494 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-28 23:49:11,500 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-28 23:49:11,502 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-28 23:49:11,503 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-28 23:49:11,506 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-28 23:49:11,519 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-28 23:49:11,521 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-28 23:49:11,523 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-28 23:49:11,527 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-28 23:49:11,528 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-28 23:49:11,533 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-28 23:49:11,534 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-28 23:49:11,534 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-28 23:49:11,536 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-28 23:49:11,537 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-28 23:49:11,539 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-28 23:49:11,539 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-28 23:49:11,540 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-28 23:49:11,543 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-28 23:49:11,544 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-28 23:49:11,546 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-28 23:49:11,546 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-28 23:49:11,547 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-28 23:49:11,547 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-28 23:49:11,548 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-28 23:49:11,549 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-28 23:49:11,550 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-28 23:49:11,551 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79bdf90d-d18c-4543-ae94-8485702dc626/bin/uautomizer-GMMbpWq8iD/config/svcomp-Termination-32bit-Automizer_Default.epf [2021-10-28 23:49:11,592 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-28 23:49:11,592 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-28 23:49:11,592 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-10-28 23:49:11,593 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-10-28 23:49:11,594 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-10-28 23:49:11,594 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-10-28 23:49:11,595 INFO L138 SettingsManager]: * Use SBE=true [2021-10-28 23:49:11,595 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2021-10-28 23:49:11,595 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2021-10-28 23:49:11,595 INFO L138 SettingsManager]: * Use old map elimination=false [2021-10-28 23:49:11,596 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2021-10-28 23:49:11,596 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2021-10-28 23:49:11,596 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2021-10-28 23:49:11,596 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-28 23:49:11,596 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-28 23:49:11,597 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-10-28 23:49:11,597 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-28 23:49:11,597 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-28 23:49:11,597 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-28 23:49:11,598 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2021-10-28 23:49:11,598 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2021-10-28 23:49:11,598 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2021-10-28 23:49:11,598 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-28 23:49:11,599 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-28 23:49:11,599 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2021-10-28 23:49:11,599 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-28 23:49:11,599 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2021-10-28 23:49:11,600 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-28 23:49:11,600 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-10-28 23:49:11,600 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-28 23:49:11,600 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-10-28 23:49:11,601 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-28 23:49:11,602 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2021-10-28 23:49:11,602 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_79bdf90d-d18c-4543-ae94-8485702dc626/bin/uautomizer-GMMbpWq8iD/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79bdf90d-d18c-4543-ae94-8485702dc626/bin/uautomizer-GMMbpWq8iD Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 33fdb29d081e8788960943f1182fbfb10ca7dcdfe7c31b22aaab16bda45fd1b8 [2021-10-28 23:49:11,959 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-28 23:49:12,001 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-28 23:49:12,006 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-28 23:49:12,007 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-28 23:49:12,009 INFO L275 PluginConnector]: CDTParser initialized [2021-10-28 23:49:12,010 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79bdf90d-d18c-4543-ae94-8485702dc626/bin/uautomizer-GMMbpWq8iD/../../sv-benchmarks/c/ldv-regression/ex3_forlist.i [2021-10-28 23:49:12,102 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79bdf90d-d18c-4543-ae94-8485702dc626/bin/uautomizer-GMMbpWq8iD/data/e06df86d2/a1f479b2e6e84e9bbda7cbc04be37c98/FLAG5655d8b11 [2021-10-28 23:49:12,686 INFO L306 CDTParser]: Found 1 translation units. [2021-10-28 23:49:12,687 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79bdf90d-d18c-4543-ae94-8485702dc626/sv-benchmarks/c/ldv-regression/ex3_forlist.i [2021-10-28 23:49:12,705 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79bdf90d-d18c-4543-ae94-8485702dc626/bin/uautomizer-GMMbpWq8iD/data/e06df86d2/a1f479b2e6e84e9bbda7cbc04be37c98/FLAG5655d8b11 [2021-10-28 23:49:13,003 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79bdf90d-d18c-4543-ae94-8485702dc626/bin/uautomizer-GMMbpWq8iD/data/e06df86d2/a1f479b2e6e84e9bbda7cbc04be37c98 [2021-10-28 23:49:13,015 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-28 23:49:13,018 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-28 23:49:13,023 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-28 23:49:13,023 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-28 23:49:13,027 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-28 23:49:13,029 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.10 11:49:13" (1/1) ... [2021-10-28 23:49:13,032 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@689e708 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:49:13, skipping insertion in model container [2021-10-28 23:49:13,032 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.10 11:49:13" (1/1) ... [2021-10-28 23:49:13,041 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-28 23:49:13,061 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-28 23:49:13,264 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_79bdf90d-d18c-4543-ae94-8485702dc626/sv-benchmarks/c/ldv-regression/ex3_forlist.i[293,306] [2021-10-28 23:49:13,299 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-28 23:49:13,311 INFO L203 MainTranslator]: Completed pre-run [2021-10-28 23:49:13,325 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_79bdf90d-d18c-4543-ae94-8485702dc626/sv-benchmarks/c/ldv-regression/ex3_forlist.i[293,306] [2021-10-28 23:49:13,335 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-28 23:49:13,354 INFO L208 MainTranslator]: Completed translation [2021-10-28 23:49:13,354 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:49:13 WrapperNode [2021-10-28 23:49:13,355 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-28 23:49:13,356 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-28 23:49:13,356 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-28 23:49:13,356 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-28 23:49:13,365 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:49:13" (1/1) ... [2021-10-28 23:49:13,375 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:49:13" (1/1) ... [2021-10-28 23:49:13,408 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-28 23:49:13,409 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-28 23:49:13,409 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-28 23:49:13,410 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-28 23:49:13,419 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:49:13" (1/1) ... [2021-10-28 23:49:13,419 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:49:13" (1/1) ... [2021-10-28 23:49:13,423 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:49:13" (1/1) ... [2021-10-28 23:49:13,423 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:49:13" (1/1) ... [2021-10-28 23:49:13,434 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:49:13" (1/1) ... [2021-10-28 23:49:13,440 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:49:13" (1/1) ... [2021-10-28 23:49:13,442 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:49:13" (1/1) ... [2021-10-28 23:49:13,446 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-28 23:49:13,447 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-28 23:49:13,447 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-28 23:49:13,448 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-28 23:49:13,449 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:49:13" (1/1) ... [2021-10-28 23:49:13,459 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:49:13,480 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79bdf90d-d18c-4543-ae94-8485702dc626/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:49:13,495 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79bdf90d-d18c-4543-ae94-8485702dc626/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:49:13,517 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79bdf90d-d18c-4543-ae94-8485702dc626/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2021-10-28 23:49:13,553 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-10-28 23:49:13,553 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-10-28 23:49:13,553 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-10-28 23:49:13,554 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-10-28 23:49:13,554 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-28 23:49:13,554 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-10-28 23:49:13,554 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-28 23:49:13,555 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-28 23:49:13,555 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-10-28 23:49:14,110 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-28 23:49:14,110 INFO L299 CfgBuilder]: Removed 27 assume(true) statements. [2021-10-28 23:49:14,113 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.10 11:49:14 BoogieIcfgContainer [2021-10-28 23:49:14,113 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-28 23:49:14,114 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2021-10-28 23:49:14,115 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2021-10-28 23:49:14,119 INFO L275 PluginConnector]: BuchiAutomizer initialized [2021-10-28 23:49:14,119 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-10-28 23:49:14,120 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 28.10 11:49:13" (1/3) ... [2021-10-28 23:49:14,122 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@4222d564 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 28.10 11:49:14, skipping insertion in model container [2021-10-28 23:49:14,122 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-10-28 23:49:14,123 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:49:13" (2/3) ... [2021-10-28 23:49:14,123 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@4222d564 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 28.10 11:49:14, skipping insertion in model container [2021-10-28 23:49:14,123 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-10-28 23:49:14,124 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.10 11:49:14" (3/3) ... [2021-10-28 23:49:14,125 INFO L389 chiAutomizerObserver]: Analyzing ICFG ex3_forlist.i [2021-10-28 23:49:14,178 INFO L359 BuchiCegarLoop]: Interprodecural is true [2021-10-28 23:49:14,181 INFO L360 BuchiCegarLoop]: Hoare is false [2021-10-28 23:49:14,182 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2021-10-28 23:49:14,182 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2021-10-28 23:49:14,182 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-10-28 23:49:14,182 INFO L364 BuchiCegarLoop]: Difference is false [2021-10-28 23:49:14,182 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-10-28 23:49:14,183 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2021-10-28 23:49:14,208 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 33 states, 32 states have (on average 1.53125) internal successors, (49), 32 states have internal predecessors, (49), 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) [2021-10-28 23:49:14,233 INFO L131 ngComponentsAnalysis]: Automaton has 5 accepting balls. 20 [2021-10-28 23:49:14,234 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-28 23:49:14,234 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-28 23:49:14,241 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1] [2021-10-28 23:49:14,241 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2021-10-28 23:49:14,241 INFO L425 BuchiCegarLoop]: ======== Iteration 1============ [2021-10-28 23:49:14,242 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 33 states, 32 states have (on average 1.53125) internal successors, (49), 32 states have internal predecessors, (49), 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) [2021-10-28 23:49:14,250 INFO L131 ngComponentsAnalysis]: Automaton has 5 accepting balls. 20 [2021-10-28 23:49:14,250 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-28 23:49:14,251 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-28 23:49:14,251 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1] [2021-10-28 23:49:14,251 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2021-10-28 23:49:14,259 INFO L791 eck$LassoCheckResult]: Stem: 17#ULTIMATE.startENTRYtrue #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string4.base, #t~string4.offset := #Ultimate.allocOnStack(2);call write~init~int(48, #t~string4.base, #t~string4.offset, 1);call write~init~int(0, #t~string4.base, 1 + #t~string4.offset, 1);call #t~string5.base, #t~string5.offset := #Ultimate.allocOnStack(14);call #t~string6.base, #t~string6.offset := #Ultimate.allocOnStack(12);call ~#pp~0.base, ~#pp~0.offset := #Ultimate.allocOnStack(8);call write~init~$Pointer$(0, 0, ~#pp~0.base, ~#pp~0.offset, 4);call write~init~$Pointer$(0, 0, ~#pp~0.base, 4 + ~#pp~0.offset, 4);call ~#pstate~0.base, ~#pstate~0.offset := #Ultimate.allocOnStack(8);call write~init~int(0, ~#pstate~0.base, ~#pstate~0.offset, 4);call write~init~int(0, ~#pstate~0.base, 4 + ~#pstate~0.offset, 4);~counter~0 := 1; 7#L-1true havoc main_#res;havoc main_#t~ret14.base, main_#t~ret14.offset, main_#t~ret15.base, main_#t~ret15.offset, main_~a~0.base, main_~a~0.offset, main_~b~0.base, main_~b~0.offset;havoc main_~a~0.base, main_~a~0.offset;havoc main_~b~0.base, main_~b~0.offset;havoc init_#t~post7, init_~i~0;havoc init_~i~0;init_~i~0 := 0; 34#L19-3true [2021-10-28 23:49:14,259 INFO L793 eck$LassoCheckResult]: Loop: 34#L19-3true assume !!(init_~i~0 < 2);call write~$Pointer$(0, 0, ~#pp~0.base, ~#pp~0.offset + 4 * init_~i~0, 4);call write~int(0, ~#pstate~0.base, ~#pstate~0.offset + 4 * init_~i~0, 4); 3#L19-2true init_#t~post7 := init_~i~0;init_~i~0 := 1 + init_#t~post7;havoc init_#t~post7; 34#L19-3true [2021-10-28 23:49:14,272 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:49:14,274 INFO L85 PathProgramCache]: Analyzing trace with hash 963, now seen corresponding path program 1 times [2021-10-28 23:49:14,284 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 23:49:14,286 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [21324190] [2021-10-28 23:49:14,286 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:49:14,287 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 23:49:14,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 23:49:14,423 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-28 23:49:14,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 23:49:14,474 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-28 23:49:14,477 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:49:14,478 INFO L85 PathProgramCache]: Analyzing trace with hash 1283, now seen corresponding path program 1 times [2021-10-28 23:49:14,478 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 23:49:14,479 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [695485113] [2021-10-28 23:49:14,479 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:49:14,479 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 23:49:14,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 23:49:14,497 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-28 23:49:14,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 23:49:14,534 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-28 23:49:14,539 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:49:14,540 INFO L85 PathProgramCache]: Analyzing trace with hash 925765, now seen corresponding path program 1 times [2021-10-28 23:49:14,540 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 23:49:14,541 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [280556272] [2021-10-28 23:49:14,541 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:49:14,541 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 23:49:14,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 23:49:14,619 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-28 23:49:14,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 23:49:14,676 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-28 23:49:15,965 INFO L210 LassoAnalysis]: Preferences: [2021-10-28 23:49:15,965 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-10-28 23:49:15,965 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-10-28 23:49:15,966 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-10-28 23:49:15,966 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2021-10-28 23:49:15,966 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:49:15,966 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-10-28 23:49:15,966 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-10-28 23:49:15,966 INFO L133 ssoRankerPreferences]: Filename of dumped script: ex3_forlist.i_Iteration1_Lasso [2021-10-28 23:49:15,967 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-10-28 23:49:15,967 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-10-28 23:49:15,991 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 23:49:15,997 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 23:49:16,001 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 23:49:16,005 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 23:49:16,009 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 23:49:16,014 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 23:49:16,017 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 23:49:16,019 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 23:49:16,023 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 23:49:16,029 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 23:49:16,033 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 23:49:16,035 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 23:49:16,038 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 23:49:16,042 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 23:49:16,046 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 23:49:16,767 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 23:49:17,258 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-10-28 23:49:17,263 INFO L490 LassoAnalysis]: Using template 'affine'. [2021-10-28 23:49:17,265 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:49:17,265 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79bdf90d-d18c-4543-ae94-8485702dc626/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:49:17,267 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79bdf90d-d18c-4543-ae94-8485702dc626/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:49:17,277 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 [2021-10-28 23:49:17,288 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 23:49:17,288 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 23:49:17,289 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 23:49:17,289 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 23:49:17,289 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 23:49:17,291 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-28 23:49:17,291 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 23:49:17,292 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79bdf90d-d18c-4543-ae94-8485702dc626/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Waiting until timeout for monitored process [2021-10-28 23:49:17,307 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 23:49:17,350 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79bdf90d-d18c-4543-ae94-8485702dc626/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Forceful destruction successful, exit code 0 [2021-10-28 23:49:17,351 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:49:17,351 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79bdf90d-d18c-4543-ae94-8485702dc626/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:49:17,353 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79bdf90d-d18c-4543-ae94-8485702dc626/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:49:17,362 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79bdf90d-d18c-4543-ae94-8485702dc626/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Waiting until timeout for monitored process [2021-10-28 23:49:17,363 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 [2021-10-28 23:49:17,374 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 23:49:17,375 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 23:49:17,375 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 23:49:17,375 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 23:49:17,382 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-28 23:49:17,382 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-28 23:49:17,407 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 23:49:17,434 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79bdf90d-d18c-4543-ae94-8485702dc626/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Ended with exit code 0 [2021-10-28 23:49:17,434 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:49:17,435 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79bdf90d-d18c-4543-ae94-8485702dc626/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:49:17,436 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79bdf90d-d18c-4543-ae94-8485702dc626/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:49:17,437 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79bdf90d-d18c-4543-ae94-8485702dc626/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Waiting until timeout for monitored process [2021-10-28 23:49:17,439 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 [2021-10-28 23:49:17,449 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 23:49:17,450 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 23:49:17,450 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 23:49:17,450 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 23:49:17,450 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 23:49:17,451 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-28 23:49:17,451 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 23:49:17,469 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 23:49:17,500 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79bdf90d-d18c-4543-ae94-8485702dc626/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Forceful destruction successful, exit code 0 [2021-10-28 23:49:17,501 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:49:17,501 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79bdf90d-d18c-4543-ae94-8485702dc626/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:49:17,502 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79bdf90d-d18c-4543-ae94-8485702dc626/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:49:17,504 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79bdf90d-d18c-4543-ae94-8485702dc626/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Waiting until timeout for monitored process [2021-10-28 23:49:17,505 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 [2021-10-28 23:49:17,513 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 23:49:17,513 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 23:49:17,513 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 23:49:17,513 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 23:49:17,513 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 23:49:17,514 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-28 23:49:17,514 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 23:49:17,515 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 23:49:17,541 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79bdf90d-d18c-4543-ae94-8485702dc626/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Ended with exit code 0 [2021-10-28 23:49:17,541 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:49:17,541 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79bdf90d-d18c-4543-ae94-8485702dc626/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:49:17,543 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79bdf90d-d18c-4543-ae94-8485702dc626/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:49:17,544 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79bdf90d-d18c-4543-ae94-8485702dc626/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Waiting until timeout for monitored process [2021-10-28 23:49:17,544 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 [2021-10-28 23:49:17,553 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 23:49:17,553 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 23:49:17,553 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 23:49:17,553 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 23:49:17,556 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-28 23:49:17,557 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-28 23:49:17,583 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 23:49:17,605 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79bdf90d-d18c-4543-ae94-8485702dc626/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Ended with exit code 0 [2021-10-28 23:49:17,605 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:49:17,605 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79bdf90d-d18c-4543-ae94-8485702dc626/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:49:17,606 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79bdf90d-d18c-4543-ae94-8485702dc626/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:49:17,621 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79bdf90d-d18c-4543-ae94-8485702dc626/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Waiting until timeout for monitored process [2021-10-28 23:49:17,622 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 [2021-10-28 23:49:17,630 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 23:49:17,630 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 23:49:17,631 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 23:49:17,631 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 23:49:17,631 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 23:49:17,632 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-28 23:49:17,632 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 23:49:17,633 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 23:49:17,659 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79bdf90d-d18c-4543-ae94-8485702dc626/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Forceful destruction successful, exit code 0 [2021-10-28 23:49:17,659 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:49:17,659 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79bdf90d-d18c-4543-ae94-8485702dc626/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:49:17,660 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79bdf90d-d18c-4543-ae94-8485702dc626/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:49:17,667 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79bdf90d-d18c-4543-ae94-8485702dc626/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Waiting until timeout for monitored process [2021-10-28 23:49:17,667 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 [2021-10-28 23:49:17,676 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 23:49:17,676 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 23:49:17,676 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 23:49:17,677 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 23:49:17,677 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 23:49:17,677 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-28 23:49:17,677 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 23:49:17,679 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 23:49:17,701 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79bdf90d-d18c-4543-ae94-8485702dc626/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Ended with exit code 0 [2021-10-28 23:49:17,702 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:49:17,702 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79bdf90d-d18c-4543-ae94-8485702dc626/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:49:17,703 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79bdf90d-d18c-4543-ae94-8485702dc626/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:49:17,705 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79bdf90d-d18c-4543-ae94-8485702dc626/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Waiting until timeout for monitored process [2021-10-28 23:49:17,706 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 [2021-10-28 23:49:17,715 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 23:49:17,716 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 23:49:17,716 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 23:49:17,716 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 23:49:17,716 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 23:49:17,718 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-28 23:49:17,718 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 23:49:17,730 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 23:49:17,759 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79bdf90d-d18c-4543-ae94-8485702dc626/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Forceful destruction successful, exit code 0 [2021-10-28 23:49:17,759 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:49:17,760 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79bdf90d-d18c-4543-ae94-8485702dc626/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:49:17,761 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79bdf90d-d18c-4543-ae94-8485702dc626/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:49:17,762 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79bdf90d-d18c-4543-ae94-8485702dc626/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Waiting until timeout for monitored process [2021-10-28 23:49:17,763 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 [2021-10-28 23:49:17,771 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 23:49:17,772 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 23:49:17,772 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 23:49:17,772 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 23:49:17,775 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-28 23:49:17,775 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-28 23:49:17,812 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 23:49:17,838 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79bdf90d-d18c-4543-ae94-8485702dc626/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Ended with exit code 0 [2021-10-28 23:49:17,838 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:49:17,838 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79bdf90d-d18c-4543-ae94-8485702dc626/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:49:17,840 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79bdf90d-d18c-4543-ae94-8485702dc626/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:49:17,849 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79bdf90d-d18c-4543-ae94-8485702dc626/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Waiting until timeout for monitored process [2021-10-28 23:49:17,852 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 [2021-10-28 23:49:17,860 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 23:49:17,860 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 23:49:17,860 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 23:49:17,860 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 23:49:17,864 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-28 23:49:17,864 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-28 23:49:17,893 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 23:49:17,919 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79bdf90d-d18c-4543-ae94-8485702dc626/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Forceful destruction successful, exit code 0 [2021-10-28 23:49:17,919 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:49:17,919 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79bdf90d-d18c-4543-ae94-8485702dc626/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:49:17,921 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79bdf90d-d18c-4543-ae94-8485702dc626/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:49:17,926 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79bdf90d-d18c-4543-ae94-8485702dc626/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Waiting until timeout for monitored process [2021-10-28 23:49:17,927 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 [2021-10-28 23:49:17,935 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 23:49:17,936 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 23:49:17,936 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 23:49:17,936 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 23:49:17,936 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 23:49:17,937 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-28 23:49:17,937 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 23:49:17,944 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 23:49:17,969 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79bdf90d-d18c-4543-ae94-8485702dc626/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Forceful destruction successful, exit code 0 [2021-10-28 23:49:17,970 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:49:17,970 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79bdf90d-d18c-4543-ae94-8485702dc626/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:49:17,970 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79bdf90d-d18c-4543-ae94-8485702dc626/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:49:17,972 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79bdf90d-d18c-4543-ae94-8485702dc626/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Waiting until timeout for monitored process [2021-10-28 23:49:17,975 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 [2021-10-28 23:49:17,984 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 23:49:17,984 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 23:49:17,984 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 23:49:17,984 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 23:49:17,984 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 23:49:17,985 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-28 23:49:17,985 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 23:49:17,988 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 23:49:18,011 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79bdf90d-d18c-4543-ae94-8485702dc626/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Forceful destruction successful, exit code 0 [2021-10-28 23:49:18,011 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:49:18,012 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79bdf90d-d18c-4543-ae94-8485702dc626/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:49:18,012 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79bdf90d-d18c-4543-ae94-8485702dc626/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:49:18,013 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79bdf90d-d18c-4543-ae94-8485702dc626/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (14)] Waiting until timeout for monitored process [2021-10-28 23:49:18,017 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 [2021-10-28 23:49:18,026 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 23:49:18,026 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 23:49:18,026 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 23:49:18,026 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 23:49:18,029 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-28 23:49:18,030 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-28 23:49:18,047 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 23:49:18,072 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79bdf90d-d18c-4543-ae94-8485702dc626/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (14)] Forceful destruction successful, exit code 0 [2021-10-28 23:49:18,073 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:49:18,073 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79bdf90d-d18c-4543-ae94-8485702dc626/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:49:18,074 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79bdf90d-d18c-4543-ae94-8485702dc626/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:49:18,075 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79bdf90d-d18c-4543-ae94-8485702dc626/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (15)] Waiting until timeout for monitored process [2021-10-28 23:49:18,076 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 [2021-10-28 23:49:18,085 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 23:49:18,085 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 23:49:18,085 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 23:49:18,086 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 23:49:18,086 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 23:49:18,086 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-28 23:49:18,086 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 23:49:18,089 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 23:49:18,111 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79bdf90d-d18c-4543-ae94-8485702dc626/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (15)] Forceful destruction successful, exit code 0 [2021-10-28 23:49:18,112 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:49:18,112 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79bdf90d-d18c-4543-ae94-8485702dc626/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:49:18,113 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79bdf90d-d18c-4543-ae94-8485702dc626/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:49:18,115 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79bdf90d-d18c-4543-ae94-8485702dc626/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (16)] Waiting until timeout for monitored process [2021-10-28 23:49:18,116 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 [2021-10-28 23:49:18,124 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 23:49:18,124 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 23:49:18,124 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 23:49:18,124 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 23:49:18,126 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-28 23:49:18,126 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-28 23:49:18,153 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 23:49:18,176 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79bdf90d-d18c-4543-ae94-8485702dc626/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (16)] Forceful destruction successful, exit code 0 [2021-10-28 23:49:18,176 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:49:18,176 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79bdf90d-d18c-4543-ae94-8485702dc626/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:49:18,177 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79bdf90d-d18c-4543-ae94-8485702dc626/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:49:18,178 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79bdf90d-d18c-4543-ae94-8485702dc626/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (17)] Waiting until timeout for monitored process [2021-10-28 23:49:18,179 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 [2021-10-28 23:49:18,187 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 23:49:18,187 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 23:49:18,187 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 23:49:18,187 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 23:49:18,191 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-28 23:49:18,191 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-28 23:49:18,219 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 23:49:18,257 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79bdf90d-d18c-4543-ae94-8485702dc626/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (17)] Forceful destruction successful, exit code 0 [2021-10-28 23:49:18,257 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:49:18,258 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79bdf90d-d18c-4543-ae94-8485702dc626/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:49:18,259 INFO L229 MonitoredProcess]: Starting monitored process 18 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79bdf90d-d18c-4543-ae94-8485702dc626/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:49:18,268 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79bdf90d-d18c-4543-ae94-8485702dc626/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (18)] Waiting until timeout for monitored process [2021-10-28 23:49:18,269 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 [2021-10-28 23:49:18,295 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 23:49:18,296 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 23:49:18,296 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 23:49:18,296 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 23:49:18,298 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-28 23:49:18,298 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-28 23:49:18,310 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 23:49:18,333 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79bdf90d-d18c-4543-ae94-8485702dc626/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (18)] Forceful destruction successful, exit code 0 [2021-10-28 23:49:18,334 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:49:18,334 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79bdf90d-d18c-4543-ae94-8485702dc626/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:49:18,334 INFO L229 MonitoredProcess]: Starting monitored process 19 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79bdf90d-d18c-4543-ae94-8485702dc626/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:49:18,336 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79bdf90d-d18c-4543-ae94-8485702dc626/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (19)] Waiting until timeout for monitored process [2021-10-28 23:49:18,337 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 [2021-10-28 23:49:18,345 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 23:49:18,345 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 23:49:18,345 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 23:49:18,345 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 23:49:18,348 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-28 23:49:18,348 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-28 23:49:18,369 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 23:49:18,406 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79bdf90d-d18c-4543-ae94-8485702dc626/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (19)] Forceful destruction successful, exit code 0 [2021-10-28 23:49:18,406 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:49:18,407 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79bdf90d-d18c-4543-ae94-8485702dc626/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:49:18,408 INFO L229 MonitoredProcess]: Starting monitored process 20 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79bdf90d-d18c-4543-ae94-8485702dc626/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:49:18,423 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 [2021-10-28 23:49:18,434 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 23:49:18,434 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 23:49:18,434 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 23:49:18,434 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 23:49:18,443 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-28 23:49:18,443 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-28 23:49:18,449 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79bdf90d-d18c-4543-ae94-8485702dc626/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (20)] Waiting until timeout for monitored process [2021-10-28 23:49:18,461 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 23:49:18,490 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79bdf90d-d18c-4543-ae94-8485702dc626/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (20)] Forceful destruction successful, exit code 0 [2021-10-28 23:49:18,491 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:49:18,491 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79bdf90d-d18c-4543-ae94-8485702dc626/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:49:18,492 INFO L229 MonitoredProcess]: Starting monitored process 21 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79bdf90d-d18c-4543-ae94-8485702dc626/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:49:18,497 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79bdf90d-d18c-4543-ae94-8485702dc626/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (21)] Waiting until timeout for monitored process [2021-10-28 23:49:18,497 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 [2021-10-28 23:49:18,506 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 23:49:18,506 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 23:49:18,506 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 23:49:18,506 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 23:49:18,508 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-28 23:49:18,508 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-28 23:49:18,511 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 23:49:18,534 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79bdf90d-d18c-4543-ae94-8485702dc626/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (21)] Ended with exit code 0 [2021-10-28 23:49:18,535 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:49:18,535 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79bdf90d-d18c-4543-ae94-8485702dc626/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:49:18,536 INFO L229 MonitoredProcess]: Starting monitored process 22 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79bdf90d-d18c-4543-ae94-8485702dc626/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:49:18,536 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79bdf90d-d18c-4543-ae94-8485702dc626/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (22)] Waiting until timeout for monitored process [2021-10-28 23:49:18,538 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 [2021-10-28 23:49:18,546 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 23:49:18,547 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 23:49:18,547 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 23:49:18,547 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 23:49:18,550 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-28 23:49:18,550 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-28 23:49:18,585 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 23:49:18,607 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79bdf90d-d18c-4543-ae94-8485702dc626/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (22)] Ended with exit code 0 [2021-10-28 23:49:18,607 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:49:18,607 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79bdf90d-d18c-4543-ae94-8485702dc626/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:49:18,608 INFO L229 MonitoredProcess]: Starting monitored process 23 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79bdf90d-d18c-4543-ae94-8485702dc626/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:49:18,611 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79bdf90d-d18c-4543-ae94-8485702dc626/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (23)] Waiting until timeout for monitored process [2021-10-28 23:49:18,611 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 [2021-10-28 23:49:18,619 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 23:49:18,620 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 23:49:18,620 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 23:49:18,620 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 23:49:18,622 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-28 23:49:18,622 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-28 23:49:18,625 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 23:49:18,648 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79bdf90d-d18c-4543-ae94-8485702dc626/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (23)] Forceful destruction successful, exit code 0 [2021-10-28 23:49:18,648 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:49:18,648 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79bdf90d-d18c-4543-ae94-8485702dc626/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:49:18,649 INFO L229 MonitoredProcess]: Starting monitored process 24 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79bdf90d-d18c-4543-ae94-8485702dc626/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:49:18,650 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79bdf90d-d18c-4543-ae94-8485702dc626/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (24)] Waiting until timeout for monitored process [2021-10-28 23:49:18,650 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 [2021-10-28 23:49:18,659 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 23:49:18,659 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 23:49:18,659 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 23:49:18,659 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 23:49:18,659 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 23:49:18,660 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-28 23:49:18,660 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 23:49:18,661 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 23:49:18,684 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79bdf90d-d18c-4543-ae94-8485702dc626/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (24)] Ended with exit code 0 [2021-10-28 23:49:18,684 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:49:18,684 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79bdf90d-d18c-4543-ae94-8485702dc626/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:49:18,685 INFO L229 MonitoredProcess]: Starting monitored process 25 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79bdf90d-d18c-4543-ae94-8485702dc626/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:49:18,689 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79bdf90d-d18c-4543-ae94-8485702dc626/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (25)] Waiting until timeout for monitored process [2021-10-28 23:49:18,690 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 [2021-10-28 23:49:18,698 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 23:49:18,698 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 23:49:18,698 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 23:49:18,698 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 23:49:18,699 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-28 23:49:18,699 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-28 23:49:18,702 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 23:49:18,725 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79bdf90d-d18c-4543-ae94-8485702dc626/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (25)] Ended with exit code 0 [2021-10-28 23:49:18,726 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:49:18,726 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79bdf90d-d18c-4543-ae94-8485702dc626/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:49:18,727 INFO L229 MonitoredProcess]: Starting monitored process 26 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79bdf90d-d18c-4543-ae94-8485702dc626/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:49:18,728 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79bdf90d-d18c-4543-ae94-8485702dc626/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (26)] Waiting until timeout for monitored process [2021-10-28 23:49:18,728 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 [2021-10-28 23:49:18,736 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 23:49:18,737 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 23:49:18,737 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 23:49:18,737 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 23:49:18,737 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 23:49:18,738 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-28 23:49:18,738 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 23:49:18,739 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 23:49:18,761 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79bdf90d-d18c-4543-ae94-8485702dc626/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (26)] Ended with exit code 0 [2021-10-28 23:49:18,762 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:49:18,762 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79bdf90d-d18c-4543-ae94-8485702dc626/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:49:18,762 INFO L229 MonitoredProcess]: Starting monitored process 27 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79bdf90d-d18c-4543-ae94-8485702dc626/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:49:18,764 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 [2021-10-28 23:49:18,765 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79bdf90d-d18c-4543-ae94-8485702dc626/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (27)] Waiting until timeout for monitored process [2021-10-28 23:49:18,772 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 23:49:18,772 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 23:49:18,772 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 23:49:18,772 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 23:49:18,774 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-28 23:49:18,774 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-28 23:49:18,779 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 23:49:18,801 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79bdf90d-d18c-4543-ae94-8485702dc626/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (27)] Forceful destruction successful, exit code 0 [2021-10-28 23:49:18,803 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:49:18,803 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79bdf90d-d18c-4543-ae94-8485702dc626/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:49:18,804 INFO L229 MonitoredProcess]: Starting monitored process 28 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79bdf90d-d18c-4543-ae94-8485702dc626/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:49:18,806 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 [2021-10-28 23:49:18,809 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79bdf90d-d18c-4543-ae94-8485702dc626/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (28)] Waiting until timeout for monitored process [2021-10-28 23:49:18,815 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 23:49:18,815 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 23:49:18,815 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 23:49:18,815 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 23:49:18,818 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-28 23:49:18,818 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-28 23:49:18,825 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 23:49:18,850 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79bdf90d-d18c-4543-ae94-8485702dc626/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (28)] Ended with exit code 0 [2021-10-28 23:49:18,850 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:49:18,851 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79bdf90d-d18c-4543-ae94-8485702dc626/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:49:18,851 INFO L229 MonitoredProcess]: Starting monitored process 29 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79bdf90d-d18c-4543-ae94-8485702dc626/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:49:18,853 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79bdf90d-d18c-4543-ae94-8485702dc626/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (29)] Waiting until timeout for monitored process [2021-10-28 23:49:18,854 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 [2021-10-28 23:49:18,863 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 23:49:18,863 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 23:49:18,863 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 23:49:18,863 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 23:49:18,863 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 23:49:18,864 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-28 23:49:18,864 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 23:49:18,889 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 23:49:18,921 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79bdf90d-d18c-4543-ae94-8485702dc626/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (29)] Forceful destruction successful, exit code 0 [2021-10-28 23:49:18,921 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:49:18,921 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79bdf90d-d18c-4543-ae94-8485702dc626/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:49:18,922 INFO L229 MonitoredProcess]: Starting monitored process 30 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79bdf90d-d18c-4543-ae94-8485702dc626/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:49:18,936 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79bdf90d-d18c-4543-ae94-8485702dc626/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (30)] Waiting until timeout for monitored process [2021-10-28 23:49:18,937 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 [2021-10-28 23:49:18,946 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 23:49:18,946 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 23:49:18,946 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 23:49:18,946 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 23:49:18,948 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-28 23:49:18,948 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-28 23:49:18,956 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 23:49:18,978 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79bdf90d-d18c-4543-ae94-8485702dc626/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (30)] Ended with exit code 0 [2021-10-28 23:49:18,979 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:49:18,979 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79bdf90d-d18c-4543-ae94-8485702dc626/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:49:18,980 INFO L229 MonitoredProcess]: Starting monitored process 31 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79bdf90d-d18c-4543-ae94-8485702dc626/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:49:18,981 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79bdf90d-d18c-4543-ae94-8485702dc626/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (31)] Waiting until timeout for monitored process [2021-10-28 23:49:18,982 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 [2021-10-28 23:49:18,992 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 23:49:18,992 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 23:49:18,992 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 23:49:18,992 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 23:49:19,002 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-28 23:49:19,002 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-28 23:49:19,008 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 23:49:19,029 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79bdf90d-d18c-4543-ae94-8485702dc626/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (31)] Ended with exit code 0 [2021-10-28 23:49:19,030 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:49:19,030 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79bdf90d-d18c-4543-ae94-8485702dc626/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:49:19,031 INFO L229 MonitoredProcess]: Starting monitored process 32 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79bdf90d-d18c-4543-ae94-8485702dc626/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:49:19,033 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79bdf90d-d18c-4543-ae94-8485702dc626/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (32)] Waiting until timeout for monitored process [2021-10-28 23:49:19,034 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 [2021-10-28 23:49:19,042 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 23:49:19,042 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 23:49:19,042 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 23:49:19,042 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 23:49:19,046 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-28 23:49:19,046 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-28 23:49:19,051 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 23:49:19,072 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79bdf90d-d18c-4543-ae94-8485702dc626/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (32)] Forceful destruction successful, exit code 0 [2021-10-28 23:49:19,072 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:49:19,072 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79bdf90d-d18c-4543-ae94-8485702dc626/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:49:19,073 INFO L229 MonitoredProcess]: Starting monitored process 33 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79bdf90d-d18c-4543-ae94-8485702dc626/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:49:19,075 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79bdf90d-d18c-4543-ae94-8485702dc626/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (33)] Waiting until timeout for monitored process [2021-10-28 23:49:19,076 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 [2021-10-28 23:49:19,084 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 23:49:19,084 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 23:49:19,084 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 23:49:19,084 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 23:49:19,091 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-28 23:49:19,092 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-28 23:49:19,103 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2021-10-28 23:49:19,169 INFO L443 ModelExtractionUtils]: Simplification made 8 calls to the SMT solver. [2021-10-28 23:49:19,169 INFO L444 ModelExtractionUtils]: 3 out of 22 variables were initially zero. Simplification set additionally 16 variables to zero. [2021-10-28 23:49:19,171 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:49:19,171 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79bdf90d-d18c-4543-ae94-8485702dc626/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:49:19,195 INFO L229 MonitoredProcess]: Starting monitored process 34 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79bdf90d-d18c-4543-ae94-8485702dc626/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:49:19,197 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79bdf90d-d18c-4543-ae94-8485702dc626/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (34)] Waiting until timeout for monitored process [2021-10-28 23:49:19,197 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2021-10-28 23:49:19,223 INFO L438 nArgumentSynthesizer]: Removed 2 redundant supporting invariants from a total of 2. [2021-10-28 23:49:19,223 INFO L513 LassoAnalysis]: Proved termination. [2021-10-28 23:49:19,224 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(v_rep(select #length ~#pp~0.base)_1, ULTIMATE.start_init_~i~0) = 3*v_rep(select #length ~#pp~0.base)_1 - 8*ULTIMATE.start_init_~i~0 Supporting invariants [] [2021-10-28 23:49:19,246 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79bdf90d-d18c-4543-ae94-8485702dc626/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (33)] Ended with exit code 0 [2021-10-28 23:49:19,363 INFO L297 tatePredicateManager]: 23 out of 23 supporting invariants were superfluous and have been removed [2021-10-28 23:49:19,390 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:49:19,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:49:19,434 INFO L263 TraceCheckSpWp]: Trace formula consists of 59 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-28 23:49:19,436 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 23:49:19,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:49:19,462 INFO L263 TraceCheckSpWp]: Trace formula consists of 17 conjuncts, 6 conjunts are in the unsatisfiable core [2021-10-28 23:49:19,464 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 23:49:19,514 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 23:49:19,537 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 [2021-10-28 23:49:19,540 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand has 33 states, 32 states have (on average 1.53125) internal successors, (49), 32 states have internal predecessors, (49), 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 1.3333333333333333) internal successors, (4), 3 states have internal predecessors, (4), 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) [2021-10-28 23:49:19,701 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand has 33 states, 32 states have (on average 1.53125) internal successors, (49), 32 states have internal predecessors, (49), 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 1.3333333333333333) internal successors, (4), 3 states have internal predecessors, (4), 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 93 states and 136 transitions. Complement of second has 7 states. [2021-10-28 23:49:19,701 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 [2021-10-28 23:49:19,703 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 1.3333333333333333) internal successors, (4), 3 states have internal predecessors, (4), 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) [2021-10-28 23:49:19,705 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 92 transitions. [2021-10-28 23:49:19,707 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 92 transitions. Stem has 2 letters. Loop has 2 letters. [2021-10-28 23:49:19,707 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-28 23:49:19,707 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 92 transitions. Stem has 4 letters. Loop has 2 letters. [2021-10-28 23:49:19,707 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-28 23:49:19,707 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 92 transitions. Stem has 2 letters. Loop has 4 letters. [2021-10-28 23:49:19,708 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-28 23:49:19,708 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 93 states and 136 transitions. [2021-10-28 23:49:19,715 INFO L131 ngComponentsAnalysis]: Automaton has 4 accepting balls. 16 [2021-10-28 23:49:19,719 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 93 states to 28 states and 37 transitions. [2021-10-28 23:49:19,720 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 25 [2021-10-28 23:49:19,721 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 26 [2021-10-28 23:49:19,721 INFO L73 IsDeterministic]: Start isDeterministic. Operand 28 states and 37 transitions. [2021-10-28 23:49:19,721 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-28 23:49:19,722 INFO L681 BuchiCegarLoop]: Abstraction has 28 states and 37 transitions. [2021-10-28 23:49:19,736 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28 states and 37 transitions. [2021-10-28 23:49:19,746 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28 to 28. [2021-10-28 23:49:19,747 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 28 states, 28 states have (on average 1.3214285714285714) internal successors, (37), 27 states have internal predecessors, (37), 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) [2021-10-28 23:49:19,747 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 28 states and 37 transitions. [2021-10-28 23:49:19,749 INFO L704 BuchiCegarLoop]: Abstraction has 28 states and 37 transitions. [2021-10-28 23:49:19,749 INFO L587 BuchiCegarLoop]: Abstraction has 28 states and 37 transitions. [2021-10-28 23:49:19,749 INFO L425 BuchiCegarLoop]: ======== Iteration 2============ [2021-10-28 23:49:19,749 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 28 states and 37 transitions. [2021-10-28 23:49:19,750 INFO L131 ngComponentsAnalysis]: Automaton has 4 accepting balls. 16 [2021-10-28 23:49:19,751 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-28 23:49:19,751 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-28 23:49:19,751 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2021-10-28 23:49:19,751 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2021-10-28 23:49:19,752 INFO L791 eck$LassoCheckResult]: Stem: 277#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string4.base, #t~string4.offset := #Ultimate.allocOnStack(2);call write~init~int(48, #t~string4.base, #t~string4.offset, 1);call write~init~int(0, #t~string4.base, 1 + #t~string4.offset, 1);call #t~string5.base, #t~string5.offset := #Ultimate.allocOnStack(14);call #t~string6.base, #t~string6.offset := #Ultimate.allocOnStack(12);call ~#pp~0.base, ~#pp~0.offset := #Ultimate.allocOnStack(8);call write~init~$Pointer$(0, 0, ~#pp~0.base, ~#pp~0.offset, 4);call write~init~$Pointer$(0, 0, ~#pp~0.base, 4 + ~#pp~0.offset, 4);call ~#pstate~0.base, ~#pstate~0.offset := #Ultimate.allocOnStack(8);call write~init~int(0, ~#pstate~0.base, ~#pstate~0.offset, 4);call write~init~int(0, ~#pstate~0.base, 4 + ~#pstate~0.offset, 4);~counter~0 := 1; 264#L-1 havoc main_#res;havoc main_#t~ret14.base, main_#t~ret14.offset, main_#t~ret15.base, main_#t~ret15.offset, main_~a~0.base, main_~a~0.offset, main_~b~0.base, main_~b~0.offset;havoc main_~a~0.base, main_~a~0.offset;havoc main_~b~0.base, main_~b~0.offset;havoc init_#t~post7, init_~i~0;havoc init_~i~0;init_~i~0 := 0; 265#L19-3 assume !(init_~i~0 < 2); 281#L17 malloc_#in~size := 4;havoc malloc_#res.base, malloc_#res.offset;havoc malloc_#t~post13, malloc_~size;malloc_~size := malloc_#in~size;malloc_#t~post13 := ~counter~0;~counter~0 := 1 + malloc_#t~post13;malloc_#res.base, malloc_#res.offset := 0, malloc_#t~post13;havoc malloc_#t~post13; 273#L49 main_#t~ret14.base, main_#t~ret14.offset := malloc_#res.base, malloc_#res.offset;main_~a~0.base, main_~a~0.offset := main_#t~ret14.base, main_#t~ret14.offset;havoc main_#t~ret14.base, main_#t~ret14.offset;malloc_#in~size := 4;havoc malloc_#res.base, malloc_#res.offset;havoc malloc_#t~post13, malloc_~size;malloc_~size := malloc_#in~size;malloc_#t~post13 := ~counter~0;~counter~0 := 1 + malloc_#t~post13;malloc_#res.base, malloc_#res.offset := 0, malloc_#t~post13;havoc malloc_#t~post13; 267#L49-1 main_#t~ret15.base, main_#t~ret15.offset := malloc_#res.base, malloc_#res.offset;main_~b~0.base, main_~b~0.offset := main_#t~ret15.base, main_#t~ret15.offset;havoc main_#t~ret15.base, main_#t~ret15.offset; 262#L59 assume !((main_~a~0.base == 0 && main_~a~0.offset == 0) || (main_~b~0.base == 0 && main_~b~0.offset == 0));f_#in~pointer.base, f_#in~pointer.offset := main_~a~0.base, main_~a~0.offset;havoc f_#t~mem9.base, f_#t~mem9.offset, f_#t~post8, f_~pointer.base, f_~pointer.offset, f_~i~1;f_~pointer.base, f_~pointer.offset := f_#in~pointer.base, f_#in~pointer.offset;havoc f_~i~1;f_~i~1 := 0; 263#L27-3 [2021-10-28 23:49:19,752 INFO L793 eck$LassoCheckResult]: Loop: 263#L27-3 assume !!(f_~i~1 < 2);call f_#t~mem9.base, f_#t~mem9.offset := read~$Pointer$(~#pp~0.base, ~#pp~0.offset + 4 * f_~i~1, 4); 284#L28 assume !(f_#t~mem9.base == 0 && f_#t~mem9.offset == 0);havoc f_#t~mem9.base, f_#t~mem9.offset; 266#L27-2 f_#t~post8 := f_~i~1;f_~i~1 := 1 + f_#t~post8;havoc f_#t~post8; 263#L27-3 [2021-10-28 23:49:19,753 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:49:19,753 INFO L85 PathProgramCache]: Analyzing trace with hash 1807951404, now seen corresponding path program 1 times [2021-10-28 23:49:19,753 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 23:49:19,754 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [734433715] [2021-10-28 23:49:19,754 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:49:19,754 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 23:49:19,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:49:19,812 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 23:49:19,813 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 23:49:19,813 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [734433715] [2021-10-28 23:49:19,814 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [734433715] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-28 23:49:19,814 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-28 23:49:19,814 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-28 23:49:19,814 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [876394438] [2021-10-28 23:49:19,817 INFO L796 eck$LassoCheckResult]: stem already infeasible [2021-10-28 23:49:19,818 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:49:19,818 INFO L85 PathProgramCache]: Analyzing trace with hash 62722, now seen corresponding path program 1 times [2021-10-28 23:49:19,818 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 23:49:19,818 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1311556484] [2021-10-28 23:49:19,819 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:49:19,819 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 23:49:19,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 23:49:19,826 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-28 23:49:19,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 23:49:19,834 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-28 23:49:19,892 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 23:49:19,895 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-28 23:49:19,896 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-28 23:49:19,897 INFO L87 Difference]: Start difference. First operand 28 states and 37 transitions. cyclomatic complexity: 14 Second operand has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 3 states have internal predecessors, (7), 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) [2021-10-28 23:49:19,915 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 23:49:19,916 INFO L93 Difference]: Finished difference Result 29 states and 37 transitions. [2021-10-28 23:49:19,916 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-28 23:49:19,917 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 29 states and 37 transitions. [2021-10-28 23:49:19,918 INFO L131 ngComponentsAnalysis]: Automaton has 4 accepting balls. 16 [2021-10-28 23:49:19,920 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 29 states to 29 states and 37 transitions. [2021-10-28 23:49:19,920 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 26 [2021-10-28 23:49:19,920 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 26 [2021-10-28 23:49:19,920 INFO L73 IsDeterministic]: Start isDeterministic. Operand 29 states and 37 transitions. [2021-10-28 23:49:19,921 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-28 23:49:19,921 INFO L681 BuchiCegarLoop]: Abstraction has 29 states and 37 transitions. [2021-10-28 23:49:19,921 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29 states and 37 transitions. [2021-10-28 23:49:19,923 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29 to 28. [2021-10-28 23:49:19,924 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 28 states, 28 states have (on average 1.2857142857142858) internal successors, (36), 27 states have internal predecessors, (36), 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) [2021-10-28 23:49:19,924 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 28 states and 36 transitions. [2021-10-28 23:49:19,925 INFO L704 BuchiCegarLoop]: Abstraction has 28 states and 36 transitions. [2021-10-28 23:49:19,925 INFO L587 BuchiCegarLoop]: Abstraction has 28 states and 36 transitions. [2021-10-28 23:49:19,925 INFO L425 BuchiCegarLoop]: ======== Iteration 3============ [2021-10-28 23:49:19,925 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 28 states and 36 transitions. [2021-10-28 23:49:19,926 INFO L131 ngComponentsAnalysis]: Automaton has 4 accepting balls. 16 [2021-10-28 23:49:19,926 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-28 23:49:19,926 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-28 23:49:19,927 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 23:49:19,927 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2021-10-28 23:49:19,927 INFO L791 eck$LassoCheckResult]: Stem: 340#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(14);call #t~string6.base, #t~string6.offset := #Ultimate.allocOnStack(12);call ~#pp~0.base, ~#pp~0.offset := #Ultimate.allocOnStack(8);call write~init~$Pointer$(0, 0, ~#pp~0.base, ~#pp~0.offset, 4);call write~init~$Pointer$(0, 0, ~#pp~0.base, 4 + ~#pp~0.offset, 4);call ~#pstate~0.base, ~#pstate~0.offset := #Ultimate.allocOnStack(8);call write~init~int(0, ~#pstate~0.base, ~#pstate~0.offset, 4);call write~init~int(0, ~#pstate~0.base, 4 + ~#pstate~0.offset, 4);~counter~0 := 1; 327#L-1 havoc main_#res;havoc main_#t~ret14.base, main_#t~ret14.offset, main_#t~ret15.base, main_#t~ret15.offset, main_~a~0.base, main_~a~0.offset, main_~b~0.base, main_~b~0.offset;havoc main_~a~0.base, main_~a~0.offset;havoc main_~b~0.base, main_~b~0.offset;havoc init_#t~post7, init_~i~0;havoc init_~i~0;init_~i~0 := 0; 328#L19-3 assume !!(init_~i~0 < 2);call write~$Pointer$(0, 0, ~#pp~0.base, ~#pp~0.offset + 4 * init_~i~0, 4);call write~int(0, ~#pstate~0.base, ~#pstate~0.offset + 4 * init_~i~0, 4); 320#L19-2 init_#t~post7 := init_~i~0;init_~i~0 := 1 + init_#t~post7;havoc init_#t~post7; 321#L19-3 assume !(init_~i~0 < 2); 344#L17 malloc_#in~size := 4;havoc malloc_#res.base, malloc_#res.offset;havoc malloc_#t~post13, malloc_~size;malloc_~size := malloc_#in~size;malloc_#t~post13 := ~counter~0;~counter~0 := 1 + malloc_#t~post13;malloc_#res.base, malloc_#res.offset := 0, malloc_#t~post13;havoc malloc_#t~post13; 333#L49 main_#t~ret14.base, main_#t~ret14.offset := malloc_#res.base, malloc_#res.offset;main_~a~0.base, main_~a~0.offset := main_#t~ret14.base, main_#t~ret14.offset;havoc main_#t~ret14.base, main_#t~ret14.offset;malloc_#in~size := 4;havoc malloc_#res.base, malloc_#res.offset;havoc malloc_#t~post13, malloc_~size;malloc_~size := malloc_#in~size;malloc_#t~post13 := ~counter~0;~counter~0 := 1 + malloc_#t~post13;malloc_#res.base, malloc_#res.offset := 0, malloc_#t~post13;havoc malloc_#t~post13; 330#L49-1 main_#t~ret15.base, main_#t~ret15.offset := malloc_#res.base, malloc_#res.offset;main_~b~0.base, main_~b~0.offset := main_#t~ret15.base, main_#t~ret15.offset;havoc main_#t~ret15.base, main_#t~ret15.offset; 322#L59 assume !((main_~a~0.base == 0 && main_~a~0.offset == 0) || (main_~b~0.base == 0 && main_~b~0.offset == 0));f_#in~pointer.base, f_#in~pointer.offset := main_~a~0.base, main_~a~0.offset;havoc f_#t~mem9.base, f_#t~mem9.offset, f_#t~post8, f_~pointer.base, f_~pointer.offset, f_~i~1;f_~pointer.base, f_~pointer.offset := f_#in~pointer.base, f_#in~pointer.offset;havoc f_~i~1;f_~i~1 := 0; 323#L27-3 [2021-10-28 23:49:19,927 INFO L793 eck$LassoCheckResult]: Loop: 323#L27-3 assume !!(f_~i~1 < 2);call f_#t~mem9.base, f_#t~mem9.offset := read~$Pointer$(~#pp~0.base, ~#pp~0.offset + 4 * f_~i~1, 4); 347#L28 assume !(f_#t~mem9.base == 0 && f_#t~mem9.offset == 0);havoc f_#t~mem9.base, f_#t~mem9.offset; 329#L27-2 f_#t~post8 := f_~i~1;f_~i~1 := 1 + f_#t~post8;havoc f_#t~post8; 323#L27-3 [2021-10-28 23:49:19,928 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:49:19,928 INFO L85 PathProgramCache]: Analyzing trace with hash -369325334, now seen corresponding path program 1 times [2021-10-28 23:49:19,928 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 23:49:19,929 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1480338147] [2021-10-28 23:49:19,929 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:49:19,929 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 23:49:19,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:49:20,002 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 23:49:20,003 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 23:49:20,003 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1480338147] [2021-10-28 23:49:20,003 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1480338147] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-28 23:49:20,004 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [679894358] [2021-10-28 23:49:20,004 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:49:20,004 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-28 23:49:20,004 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79bdf90d-d18c-4543-ae94-8485702dc626/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:49:20,010 INFO L229 MonitoredProcess]: Starting monitored process 35 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79bdf90d-d18c-4543-ae94-8485702dc626/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-28 23:49:20,012 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79bdf90d-d18c-4543-ae94-8485702dc626/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (35)] Waiting until timeout for monitored process [2021-10-28 23:49:20,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:49:20,075 INFO L263 TraceCheckSpWp]: Trace formula consists of 115 conjuncts, 3 conjunts are in the unsatisfiable core [2021-10-28 23:49:20,076 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 23:49:20,122 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 23:49:20,122 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [679894358] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-28 23:49:20,123 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-28 23:49:20,123 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 5 [2021-10-28 23:49:20,123 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1546334745] [2021-10-28 23:49:20,124 INFO L796 eck$LassoCheckResult]: stem already infeasible [2021-10-28 23:49:20,124 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:49:20,124 INFO L85 PathProgramCache]: Analyzing trace with hash 62722, now seen corresponding path program 2 times [2021-10-28 23:49:20,124 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 23:49:20,125 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [529356081] [2021-10-28 23:49:20,125 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:49:20,125 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 23:49:20,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 23:49:20,131 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-28 23:49:20,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 23:49:20,138 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-28 23:49:20,195 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 23:49:20,196 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-10-28 23:49:20,196 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2021-10-28 23:49:20,197 INFO L87 Difference]: Start difference. First operand 28 states and 36 transitions. cyclomatic complexity: 13 Second operand has 5 states, 5 states have (on average 2.4) internal successors, (12), 5 states have internal predecessors, (12), 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) [2021-10-28 23:49:20,219 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 23:49:20,219 INFO L93 Difference]: Finished difference Result 30 states and 38 transitions. [2021-10-28 23:49:20,220 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-28 23:49:20,220 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 30 states and 38 transitions. [2021-10-28 23:49:20,221 INFO L131 ngComponentsAnalysis]: Automaton has 4 accepting balls. 16 [2021-10-28 23:49:20,222 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 30 states to 30 states and 38 transitions. [2021-10-28 23:49:20,223 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 26 [2021-10-28 23:49:20,223 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 26 [2021-10-28 23:49:20,223 INFO L73 IsDeterministic]: Start isDeterministic. Operand 30 states and 38 transitions. [2021-10-28 23:49:20,223 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-28 23:49:20,224 INFO L681 BuchiCegarLoop]: Abstraction has 30 states and 38 transitions. [2021-10-28 23:49:20,224 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30 states and 38 transitions. [2021-10-28 23:49:20,226 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30 to 30. [2021-10-28 23:49:20,226 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 30 states, 30 states have (on average 1.2666666666666666) internal successors, (38), 29 states have internal predecessors, (38), 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) [2021-10-28 23:49:20,227 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 30 states and 38 transitions. [2021-10-28 23:49:20,227 INFO L704 BuchiCegarLoop]: Abstraction has 30 states and 38 transitions. [2021-10-28 23:49:20,227 INFO L587 BuchiCegarLoop]: Abstraction has 30 states and 38 transitions. [2021-10-28 23:49:20,228 INFO L425 BuchiCegarLoop]: ======== Iteration 4============ [2021-10-28 23:49:20,228 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 30 states and 38 transitions. [2021-10-28 23:49:20,229 INFO L131 ngComponentsAnalysis]: Automaton has 4 accepting balls. 16 [2021-10-28 23:49:20,229 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-28 23:49:20,229 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-28 23:49:20,229 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [2, 2, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 23:49:20,230 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2021-10-28 23:49:20,230 INFO L791 eck$LassoCheckResult]: Stem: 430#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string4.base, #t~string4.offset := #Ultimate.allocOnStack(2);call write~init~int(48, #t~string4.base, #t~string4.offset, 1);call write~init~int(0, #t~string4.base, 1 + #t~string4.offset, 1);call #t~string5.base, #t~string5.offset := #Ultimate.allocOnStack(14);call #t~string6.base, #t~string6.offset := #Ultimate.allocOnStack(12);call ~#pp~0.base, ~#pp~0.offset := #Ultimate.allocOnStack(8);call write~init~$Pointer$(0, 0, ~#pp~0.base, ~#pp~0.offset, 4);call write~init~$Pointer$(0, 0, ~#pp~0.base, 4 + ~#pp~0.offset, 4);call ~#pstate~0.base, ~#pstate~0.offset := #Ultimate.allocOnStack(8);call write~init~int(0, ~#pstate~0.base, ~#pstate~0.offset, 4);call write~init~int(0, ~#pstate~0.base, 4 + ~#pstate~0.offset, 4);~counter~0 := 1; 417#L-1 havoc main_#res;havoc main_#t~ret14.base, main_#t~ret14.offset, main_#t~ret15.base, main_#t~ret15.offset, main_~a~0.base, main_~a~0.offset, main_~b~0.base, main_~b~0.offset;havoc main_~a~0.base, main_~a~0.offset;havoc main_~b~0.base, main_~b~0.offset;havoc init_#t~post7, init_~i~0;havoc init_~i~0;init_~i~0 := 0; 418#L19-3 assume !!(init_~i~0 < 2);call write~$Pointer$(0, 0, ~#pp~0.base, ~#pp~0.offset + 4 * init_~i~0, 4);call write~int(0, ~#pstate~0.base, ~#pstate~0.offset + 4 * init_~i~0, 4); 410#L19-2 init_#t~post7 := init_~i~0;init_~i~0 := 1 + init_#t~post7;havoc init_#t~post7; 411#L19-3 assume !!(init_~i~0 < 2);call write~$Pointer$(0, 0, ~#pp~0.base, ~#pp~0.offset + 4 * init_~i~0, 4);call write~int(0, ~#pstate~0.base, ~#pstate~0.offset + 4 * init_~i~0, 4); 438#L19-2 init_#t~post7 := init_~i~0;init_~i~0 := 1 + init_#t~post7;havoc init_#t~post7; 439#L19-3 assume !(init_~i~0 < 2); 434#L17 malloc_#in~size := 4;havoc malloc_#res.base, malloc_#res.offset;havoc malloc_#t~post13, malloc_~size;malloc_~size := malloc_#in~size;malloc_#t~post13 := ~counter~0;~counter~0 := 1 + malloc_#t~post13;malloc_#res.base, malloc_#res.offset := 0, malloc_#t~post13;havoc malloc_#t~post13; 423#L49 main_#t~ret14.base, main_#t~ret14.offset := malloc_#res.base, malloc_#res.offset;main_~a~0.base, main_~a~0.offset := main_#t~ret14.base, main_#t~ret14.offset;havoc main_#t~ret14.base, main_#t~ret14.offset;malloc_#in~size := 4;havoc malloc_#res.base, malloc_#res.offset;havoc malloc_#t~post13, malloc_~size;malloc_~size := malloc_#in~size;malloc_#t~post13 := ~counter~0;~counter~0 := 1 + malloc_#t~post13;malloc_#res.base, malloc_#res.offset := 0, malloc_#t~post13;havoc malloc_#t~post13; 420#L49-1 main_#t~ret15.base, main_#t~ret15.offset := malloc_#res.base, malloc_#res.offset;main_~b~0.base, main_~b~0.offset := main_#t~ret15.base, main_#t~ret15.offset;havoc main_#t~ret15.base, main_#t~ret15.offset; 412#L59 assume !((main_~a~0.base == 0 && main_~a~0.offset == 0) || (main_~b~0.base == 0 && main_~b~0.offset == 0));f_#in~pointer.base, f_#in~pointer.offset := main_~a~0.base, main_~a~0.offset;havoc f_#t~mem9.base, f_#t~mem9.offset, f_#t~post8, f_~pointer.base, f_~pointer.offset, f_~i~1;f_~pointer.base, f_~pointer.offset := f_#in~pointer.base, f_#in~pointer.offset;havoc f_~i~1;f_~i~1 := 0; 413#L27-3 [2021-10-28 23:49:20,230 INFO L793 eck$LassoCheckResult]: Loop: 413#L27-3 assume !!(f_~i~1 < 2);call f_#t~mem9.base, f_#t~mem9.offset := read~$Pointer$(~#pp~0.base, ~#pp~0.offset + 4 * f_~i~1, 4); 437#L28 assume !(f_#t~mem9.base == 0 && f_#t~mem9.offset == 0);havoc f_#t~mem9.base, f_#t~mem9.offset; 419#L27-2 f_#t~post8 := f_~i~1;f_~i~1 := 1 + f_#t~post8;havoc f_#t~post8; 413#L27-3 [2021-10-28 23:49:20,230 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:49:20,231 INFO L85 PathProgramCache]: Analyzing trace with hash -1083197400, now seen corresponding path program 2 times [2021-10-28 23:49:20,231 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 23:49:20,231 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [11618923] [2021-10-28 23:49:20,231 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:49:20,232 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 23:49:20,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 23:49:20,270 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-28 23:49:20,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 23:49:20,355 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-28 23:49:20,376 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:49:20,376 INFO L85 PathProgramCache]: Analyzing trace with hash 62722, now seen corresponding path program 3 times [2021-10-28 23:49:20,376 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 23:49:20,377 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [269402503] [2021-10-28 23:49:20,377 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:49:20,377 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 23:49:20,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 23:49:20,383 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-28 23:49:20,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 23:49:20,402 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-28 23:49:20,402 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:49:20,403 INFO L85 PathProgramCache]: Analyzing trace with hash -1444415621, now seen corresponding path program 1 times [2021-10-28 23:49:20,403 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 23:49:20,403 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [518792265] [2021-10-28 23:49:20,403 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:49:20,403 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 23:49:20,409 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79bdf90d-d18c-4543-ae94-8485702dc626/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (34)] Forceful destruction successful, exit code 0 [2021-10-28 23:49:20,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:49:20,785 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 23:49:20,787 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 23:49:20,787 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [518792265] [2021-10-28 23:49:20,787 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [518792265] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-28 23:49:20,787 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [898167264] [2021-10-28 23:49:20,788 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:49:20,788 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-28 23:49:20,788 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79bdf90d-d18c-4543-ae94-8485702dc626/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:49:20,789 INFO L229 MonitoredProcess]: Starting monitored process 36 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79bdf90d-d18c-4543-ae94-8485702dc626/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-28 23:49:20,808 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79bdf90d-d18c-4543-ae94-8485702dc626/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (36)] Waiting until timeout for monitored process [2021-10-28 23:49:20,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:49:20,879 INFO L263 TraceCheckSpWp]: Trace formula consists of 142 conjuncts, 18 conjunts are in the unsatisfiable core [2021-10-28 23:49:20,883 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 23:49:20,916 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 313 treesize of output 309 [2021-10-28 23:49:21,050 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 47 treesize of output 11 [2021-10-28 23:49:21,063 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 47 treesize of output 11 [2021-10-28 23:49:21,221 INFO L354 Elim1Store]: treesize reduction 126, result has 13.1 percent of original size [2021-10-28 23:49:21,222 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 2 case distinctions, treesize of input 116 treesize of output 83 [2021-10-28 23:49:21,259 INFO L354 Elim1Store]: treesize reduction 126, result has 13.1 percent of original size [2021-10-28 23:49:21,259 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 2 case distinctions, treesize of input 80 treesize of output 47 [2021-10-28 23:49:21,625 INFO L354 Elim1Store]: treesize reduction 11, result has 8.3 percent of original size [2021-10-28 23:49:21,625 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 60 treesize of output 44 [2021-10-28 23:49:21,636 INFO L354 Elim1Store]: treesize reduction 11, result has 8.3 percent of original size [2021-10-28 23:49:21,637 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 38 treesize of output 22 [2021-10-28 23:49:21,658 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 23:49:21,659 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [898167264] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-28 23:49:21,659 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-28 23:49:21,659 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8] total 12 [2021-10-28 23:49:21,660 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2100214914] [2021-10-28 23:49:21,712 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 23:49:21,712 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2021-10-28 23:49:21,713 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=117, Unknown=0, NotChecked=0, Total=156 [2021-10-28 23:49:21,713 INFO L87 Difference]: Start difference. First operand 30 states and 38 transitions. cyclomatic complexity: 13 Second operand has 13 states, 13 states have (on average 1.8461538461538463) internal successors, (24), 12 states have internal predecessors, (24), 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) [2021-10-28 23:49:22,393 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 23:49:22,393 INFO L93 Difference]: Finished difference Result 29 states and 35 transitions. [2021-10-28 23:49:22,394 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-10-28 23:49:22,394 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 29 states and 35 transitions. [2021-10-28 23:49:22,394 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 13 [2021-10-28 23:49:22,395 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 29 states to 29 states and 35 transitions. [2021-10-28 23:49:22,395 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 25 [2021-10-28 23:49:22,395 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 25 [2021-10-28 23:49:22,395 INFO L73 IsDeterministic]: Start isDeterministic. Operand 29 states and 35 transitions. [2021-10-28 23:49:22,396 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-28 23:49:22,396 INFO L681 BuchiCegarLoop]: Abstraction has 29 states and 35 transitions. [2021-10-28 23:49:22,396 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29 states and 35 transitions. [2021-10-28 23:49:22,397 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29 to 29. [2021-10-28 23:49:22,398 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 29 states, 29 states have (on average 1.206896551724138) internal successors, (35), 28 states have internal predecessors, (35), 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) [2021-10-28 23:49:22,398 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29 states to 29 states and 35 transitions. [2021-10-28 23:49:22,399 INFO L704 BuchiCegarLoop]: Abstraction has 29 states and 35 transitions. [2021-10-28 23:49:22,399 INFO L587 BuchiCegarLoop]: Abstraction has 29 states and 35 transitions. [2021-10-28 23:49:22,399 INFO L425 BuchiCegarLoop]: ======== Iteration 5============ [2021-10-28 23:49:22,399 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 29 states and 35 transitions. [2021-10-28 23:49:22,400 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 13 [2021-10-28 23:49:22,400 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-28 23:49:22,400 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-28 23:49:22,401 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 23:49:22,401 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2021-10-28 23:49:22,401 INFO L791 eck$LassoCheckResult]: Stem: 555#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string4.base, #t~string4.offset := #Ultimate.allocOnStack(2);call write~init~int(48, #t~string4.base, #t~string4.offset, 1);call write~init~int(0, #t~string4.base, 1 + #t~string4.offset, 1);call #t~string5.base, #t~string5.offset := #Ultimate.allocOnStack(14);call #t~string6.base, #t~string6.offset := #Ultimate.allocOnStack(12);call ~#pp~0.base, ~#pp~0.offset := #Ultimate.allocOnStack(8);call write~init~$Pointer$(0, 0, ~#pp~0.base, ~#pp~0.offset, 4);call write~init~$Pointer$(0, 0, ~#pp~0.base, 4 + ~#pp~0.offset, 4);call ~#pstate~0.base, ~#pstate~0.offset := #Ultimate.allocOnStack(8);call write~init~int(0, ~#pstate~0.base, ~#pstate~0.offset, 4);call write~init~int(0, ~#pstate~0.base, 4 + ~#pstate~0.offset, 4);~counter~0 := 1; 543#L-1 havoc main_#res;havoc main_#t~ret14.base, main_#t~ret14.offset, main_#t~ret15.base, main_#t~ret15.offset, main_~a~0.base, main_~a~0.offset, main_~b~0.base, main_~b~0.offset;havoc main_~a~0.base, main_~a~0.offset;havoc main_~b~0.base, main_~b~0.offset;havoc init_#t~post7, init_~i~0;havoc init_~i~0;init_~i~0 := 0; 544#L19-3 assume !!(init_~i~0 < 2);call write~$Pointer$(0, 0, ~#pp~0.base, ~#pp~0.offset + 4 * init_~i~0, 4);call write~int(0, ~#pstate~0.base, ~#pstate~0.offset + 4 * init_~i~0, 4); 536#L19-2 init_#t~post7 := init_~i~0;init_~i~0 := 1 + init_#t~post7;havoc init_#t~post7; 537#L19-3 assume !!(init_~i~0 < 2);call write~$Pointer$(0, 0, ~#pp~0.base, ~#pp~0.offset + 4 * init_~i~0, 4);call write~int(0, ~#pstate~0.base, ~#pstate~0.offset + 4 * init_~i~0, 4); 563#L19-2 init_#t~post7 := init_~i~0;init_~i~0 := 1 + init_#t~post7;havoc init_#t~post7; 564#L19-3 assume !(init_~i~0 < 2); 560#L17 malloc_#in~size := 4;havoc malloc_#res.base, malloc_#res.offset;havoc malloc_#t~post13, malloc_~size;malloc_~size := malloc_#in~size;malloc_#t~post13 := ~counter~0;~counter~0 := 1 + malloc_#t~post13;malloc_#res.base, malloc_#res.offset := 0, malloc_#t~post13;havoc malloc_#t~post13; 551#L49 main_#t~ret14.base, main_#t~ret14.offset := malloc_#res.base, malloc_#res.offset;main_~a~0.base, main_~a~0.offset := main_#t~ret14.base, main_#t~ret14.offset;havoc main_#t~ret14.base, main_#t~ret14.offset;malloc_#in~size := 4;havoc malloc_#res.base, malloc_#res.offset;havoc malloc_#t~post13, malloc_~size;malloc_~size := malloc_#in~size;malloc_#t~post13 := ~counter~0;~counter~0 := 1 + malloc_#t~post13;malloc_#res.base, malloc_#res.offset := 0, malloc_#t~post13;havoc malloc_#t~post13; 545#L49-1 main_#t~ret15.base, main_#t~ret15.offset := malloc_#res.base, malloc_#res.offset;main_~b~0.base, main_~b~0.offset := main_#t~ret15.base, main_#t~ret15.offset;havoc main_#t~ret15.base, main_#t~ret15.offset; 538#L59 assume !((main_~a~0.base == 0 && main_~a~0.offset == 0) || (main_~b~0.base == 0 && main_~b~0.offset == 0));f_#in~pointer.base, f_#in~pointer.offset := main_~a~0.base, main_~a~0.offset;havoc f_#t~mem9.base, f_#t~mem9.offset, f_#t~post8, f_~pointer.base, f_~pointer.offset, f_~i~1;f_~pointer.base, f_~pointer.offset := f_#in~pointer.base, f_#in~pointer.offset;havoc f_~i~1;f_~i~1 := 0; 539#L27-3 assume !!(f_~i~1 < 2);call f_#t~mem9.base, f_#t~mem9.offset := read~$Pointer$(~#pp~0.base, ~#pp~0.offset + 4 * f_~i~1, 4); 562#L28 assume f_#t~mem9.base == 0 && f_#t~mem9.offset == 0;havoc f_#t~mem9.base, f_#t~mem9.offset;call write~$Pointer$(f_~pointer.base, f_~pointer.offset, ~#pp~0.base, ~#pp~0.offset + 4 * f_~i~1, 4);call write~int(1, ~#pstate~0.base, ~#pstate~0.offset + 4 * f_~i~1, 4); 557#L25 f_#in~pointer.base, f_#in~pointer.offset := main_~b~0.base, main_~b~0.offset;havoc f_#t~mem9.base, f_#t~mem9.offset, f_#t~post8, f_~pointer.base, f_~pointer.offset, f_~i~1;f_~pointer.base, f_~pointer.offset := f_#in~pointer.base, f_#in~pointer.offset;havoc f_~i~1;f_~i~1 := 0; 556#L27-7 [2021-10-28 23:49:22,402 INFO L793 eck$LassoCheckResult]: Loop: 556#L27-7 assume !!(f_~i~1 < 2);call f_#t~mem9.base, f_#t~mem9.offset := read~$Pointer$(~#pp~0.base, ~#pp~0.offset + 4 * f_~i~1, 4); 548#L28-1 assume !(f_#t~mem9.base == 0 && f_#t~mem9.offset == 0);havoc f_#t~mem9.base, f_#t~mem9.offset; 550#L27-6 f_#t~post8 := f_~i~1;f_~i~1 := 1 + f_#t~post8;havoc f_#t~post8; 556#L27-7 [2021-10-28 23:49:22,402 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:49:22,402 INFO L85 PathProgramCache]: Analyzing trace with hash -1444415679, now seen corresponding path program 1 times [2021-10-28 23:49:22,403 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 23:49:22,403 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [140481811] [2021-10-28 23:49:22,403 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:49:22,403 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 23:49:22,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 23:49:22,451 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-28 23:49:22,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 23:49:22,535 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-28 23:49:22,535 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:49:22,536 INFO L85 PathProgramCache]: Analyzing trace with hash 81589, now seen corresponding path program 1 times [2021-10-28 23:49:22,536 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 23:49:22,536 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1734129177] [2021-10-28 23:49:22,536 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:49:22,537 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 23:49:22,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 23:49:22,552 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-28 23:49:22,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 23:49:22,559 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-28 23:49:22,560 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:49:22,560 INFO L85 PathProgramCache]: Analyzing trace with hash 689897333, now seen corresponding path program 1 times [2021-10-28 23:49:22,561 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 23:49:22,561 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2103010917] [2021-10-28 23:49:22,561 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:49:22,561 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 23:49:22,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 23:49:22,639 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-28 23:49:22,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 23:49:22,728 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-28 23:49:50,629 WARN L207 SmtUtils]: Spent 27.84 s on a formula simplification. DAG size of input: 318 DAG size of output: 263 [2021-10-28 23:50:00,726 WARN L207 SmtUtils]: Spent 9.46 s on a formula simplification that was a NOOP. DAG size: 200 [2021-10-28 23:50:00,730 INFO L210 LassoAnalysis]: Preferences: [2021-10-28 23:50:00,730 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-10-28 23:50:00,730 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-10-28 23:50:00,730 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-10-28 23:50:00,730 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2021-10-28 23:50:00,730 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:50:00,731 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-10-28 23:50:00,731 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-10-28 23:50:00,731 INFO L133 ssoRankerPreferences]: Filename of dumped script: ex3_forlist.i_Iteration5_Lasso [2021-10-28 23:50:00,731 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-10-28 23:50:00,731 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-10-28 23:50:00,738 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 23:50:00,742 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 23:50:00,745 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 23:50:00,748 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 23:50:00,751 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 23:50:00,756 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 23:50:00,759 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 23:50:00,761 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 23:50:00,764 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 23:50:06,625 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 23:50:06,627 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 23:50:06,629 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 23:50:06,649 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 23:50:06,653 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 23:50:06,661 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 23:50:06,664 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 23:50:06,667 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 23:50:07,300 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-10-28 23:50:07,300 INFO L490 LassoAnalysis]: Using template 'affine'. [2021-10-28 23:50:07,300 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:50:07,300 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79bdf90d-d18c-4543-ae94-8485702dc626/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:50:07,311 INFO L229 MonitoredProcess]: Starting monitored process 37 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79bdf90d-d18c-4543-ae94-8485702dc626/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:50:07,314 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79bdf90d-d18c-4543-ae94-8485702dc626/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (37)] Waiting until timeout for monitored process [2021-10-28 23:50:07,314 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 [2021-10-28 23:50:07,322 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 23:50:07,322 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 23:50:07,323 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 23:50:07,323 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 23:50:07,323 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 23:50:07,323 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-28 23:50:07,323 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 23:50:07,324 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 23:50:07,346 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79bdf90d-d18c-4543-ae94-8485702dc626/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (37)] Forceful destruction successful, exit code 0 [2021-10-28 23:50:07,347 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:50:07,347 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79bdf90d-d18c-4543-ae94-8485702dc626/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:50:07,355 INFO L229 MonitoredProcess]: Starting monitored process 38 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79bdf90d-d18c-4543-ae94-8485702dc626/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:50:07,356 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79bdf90d-d18c-4543-ae94-8485702dc626/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (38)] Waiting until timeout for monitored process [2021-10-28 23:50:07,356 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 [2021-10-28 23:50:07,365 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 23:50:07,365 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 23:50:07,365 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 23:50:07,365 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 23:50:07,366 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-28 23:50:07,366 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-28 23:50:07,381 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 23:50:07,403 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79bdf90d-d18c-4543-ae94-8485702dc626/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (38)] Forceful destruction successful, exit code 0 [2021-10-28 23:50:07,404 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:50:07,404 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79bdf90d-d18c-4543-ae94-8485702dc626/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:50:07,405 INFO L229 MonitoredProcess]: Starting monitored process 39 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79bdf90d-d18c-4543-ae94-8485702dc626/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:50:07,406 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79bdf90d-d18c-4543-ae94-8485702dc626/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (39)] Waiting until timeout for monitored process [2021-10-28 23:50:07,406 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 [2021-10-28 23:50:07,415 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 23:50:07,415 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 23:50:07,415 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 23:50:07,415 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 23:50:07,415 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 23:50:07,416 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-28 23:50:07,416 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 23:50:07,445 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 23:50:07,480 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79bdf90d-d18c-4543-ae94-8485702dc626/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (39)] Forceful destruction successful, exit code 0 [2021-10-28 23:50:07,481 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:50:07,481 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79bdf90d-d18c-4543-ae94-8485702dc626/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:50:07,482 INFO L229 MonitoredProcess]: Starting monitored process 40 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79bdf90d-d18c-4543-ae94-8485702dc626/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:50:07,483 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79bdf90d-d18c-4543-ae94-8485702dc626/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (40)] Waiting until timeout for monitored process [2021-10-28 23:50:07,484 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 [2021-10-28 23:50:07,492 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 23:50:07,493 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 23:50:07,493 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 23:50:07,493 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 23:50:07,495 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-28 23:50:07,495 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-28 23:50:07,501 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 23:50:07,524 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79bdf90d-d18c-4543-ae94-8485702dc626/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (40)] Ended with exit code 0 [2021-10-28 23:50:07,524 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:50:07,524 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79bdf90d-d18c-4543-ae94-8485702dc626/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:50:07,525 INFO L229 MonitoredProcess]: Starting monitored process 41 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79bdf90d-d18c-4543-ae94-8485702dc626/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:50:07,526 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79bdf90d-d18c-4543-ae94-8485702dc626/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (41)] Waiting until timeout for monitored process [2021-10-28 23:50:07,527 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 [2021-10-28 23:50:07,535 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 23:50:07,535 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 23:50:07,535 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 23:50:07,535 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 23:50:07,537 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-28 23:50:07,537 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-28 23:50:07,548 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 23:50:07,570 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79bdf90d-d18c-4543-ae94-8485702dc626/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (41)] Ended with exit code 0 [2021-10-28 23:50:07,571 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:50:07,571 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79bdf90d-d18c-4543-ae94-8485702dc626/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:50:07,573 INFO L229 MonitoredProcess]: Starting monitored process 42 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79bdf90d-d18c-4543-ae94-8485702dc626/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:50:07,574 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79bdf90d-d18c-4543-ae94-8485702dc626/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (42)] Waiting until timeout for monitored process [2021-10-28 23:50:07,574 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 [2021-10-28 23:50:07,583 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 23:50:07,583 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 23:50:07,583 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 23:50:07,583 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 23:50:07,583 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 23:50:07,583 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-28 23:50:07,584 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 23:50:07,585 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 23:50:07,608 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79bdf90d-d18c-4543-ae94-8485702dc626/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (42)] Ended with exit code 0 [2021-10-28 23:50:07,608 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:50:07,608 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79bdf90d-d18c-4543-ae94-8485702dc626/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:50:07,609 INFO L229 MonitoredProcess]: Starting monitored process 43 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79bdf90d-d18c-4543-ae94-8485702dc626/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:50:07,610 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79bdf90d-d18c-4543-ae94-8485702dc626/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (43)] Waiting until timeout for monitored process [2021-10-28 23:50:07,610 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 [2021-10-28 23:50:07,618 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 23:50:07,619 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 23:50:07,619 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 23:50:07,619 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 23:50:07,619 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 23:50:07,619 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-28 23:50:07,619 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 23:50:07,620 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 23:50:07,643 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79bdf90d-d18c-4543-ae94-8485702dc626/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (43)] Forceful destruction successful, exit code 0 [2021-10-28 23:50:07,643 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:50:07,644 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79bdf90d-d18c-4543-ae94-8485702dc626/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:50:07,645 INFO L229 MonitoredProcess]: Starting monitored process 44 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79bdf90d-d18c-4543-ae94-8485702dc626/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:50:07,646 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79bdf90d-d18c-4543-ae94-8485702dc626/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (44)] Waiting until timeout for monitored process [2021-10-28 23:50:07,646 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 [2021-10-28 23:50:07,655 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 23:50:07,656 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 23:50:07,656 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 23:50:07,656 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 23:50:07,656 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 23:50:07,656 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-28 23:50:07,656 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 23:50:07,665 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 23:50:07,706 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79bdf90d-d18c-4543-ae94-8485702dc626/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (44)] Forceful destruction successful, exit code 0 [2021-10-28 23:50:07,707 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:50:07,707 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79bdf90d-d18c-4543-ae94-8485702dc626/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:50:07,708 INFO L229 MonitoredProcess]: Starting monitored process 45 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79bdf90d-d18c-4543-ae94-8485702dc626/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:50:07,730 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 [2021-10-28 23:50:07,740 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 23:50:07,740 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 23:50:07,741 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 23:50:07,741 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 23:50:07,743 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-28 23:50:07,743 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-28 23:50:07,747 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79bdf90d-d18c-4543-ae94-8485702dc626/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (45)] Waiting until timeout for monitored process [2021-10-28 23:50:07,757 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 23:50:07,796 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79bdf90d-d18c-4543-ae94-8485702dc626/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (45)] Forceful destruction successful, exit code 0 [2021-10-28 23:50:07,796 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:50:07,796 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79bdf90d-d18c-4543-ae94-8485702dc626/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:50:07,797 INFO L229 MonitoredProcess]: Starting monitored process 46 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79bdf90d-d18c-4543-ae94-8485702dc626/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:50:07,798 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79bdf90d-d18c-4543-ae94-8485702dc626/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (46)] Waiting until timeout for monitored process [2021-10-28 23:50:07,798 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 [2021-10-28 23:50:07,806 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 23:50:07,807 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 23:50:07,807 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 23:50:07,807 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 23:50:07,809 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-28 23:50:07,809 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-28 23:50:07,813 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 23:50:07,834 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79bdf90d-d18c-4543-ae94-8485702dc626/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (46)] Ended with exit code 0 [2021-10-28 23:50:07,836 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:50:07,837 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79bdf90d-d18c-4543-ae94-8485702dc626/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:50:07,837 INFO L229 MonitoredProcess]: Starting monitored process 47 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79bdf90d-d18c-4543-ae94-8485702dc626/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:50:07,838 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79bdf90d-d18c-4543-ae94-8485702dc626/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (47)] Waiting until timeout for monitored process [2021-10-28 23:50:07,839 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 23:50:07,847 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 23:50:07,847 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 23:50:07,847 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 23:50:07,847 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 23:50:07,850 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-28 23:50:07,850 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-28 23:50:07,853 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 23:50:07,876 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79bdf90d-d18c-4543-ae94-8485702dc626/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (47)] Forceful destruction successful, exit code 0 [2021-10-28 23:50:07,876 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:50:07,876 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79bdf90d-d18c-4543-ae94-8485702dc626/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:50:07,877 INFO L229 MonitoredProcess]: Starting monitored process 48 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79bdf90d-d18c-4543-ae94-8485702dc626/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:50:07,878 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79bdf90d-d18c-4543-ae94-8485702dc626/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (48)] Waiting until timeout for monitored process [2021-10-28 23:50:07,879 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 [2021-10-28 23:50:07,887 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 23:50:07,887 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 23:50:07,888 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 23:50:07,888 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 23:50:07,889 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-28 23:50:07,889 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-28 23:50:07,892 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 23:50:07,915 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79bdf90d-d18c-4543-ae94-8485702dc626/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (48)] Ended with exit code 0 [2021-10-28 23:50:07,915 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:50:07,915 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79bdf90d-d18c-4543-ae94-8485702dc626/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:50:07,916 INFO L229 MonitoredProcess]: Starting monitored process 49 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79bdf90d-d18c-4543-ae94-8485702dc626/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:50:07,917 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79bdf90d-d18c-4543-ae94-8485702dc626/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (49)] Waiting until timeout for monitored process [2021-10-28 23:50:07,917 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 [2021-10-28 23:50:07,926 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 23:50:07,926 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 23:50:07,926 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 23:50:07,926 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 23:50:07,928 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-28 23:50:07,929 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-28 23:50:07,937 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 23:50:07,959 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79bdf90d-d18c-4543-ae94-8485702dc626/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (49)] Forceful destruction successful, exit code 0 [2021-10-28 23:50:07,960 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:50:07,960 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79bdf90d-d18c-4543-ae94-8485702dc626/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:50:07,961 INFO L229 MonitoredProcess]: Starting monitored process 50 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79bdf90d-d18c-4543-ae94-8485702dc626/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:50:07,962 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79bdf90d-d18c-4543-ae94-8485702dc626/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (50)] Waiting until timeout for monitored process [2021-10-28 23:50:07,962 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 [2021-10-28 23:50:07,970 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 23:50:07,970 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 23:50:07,970 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 23:50:07,971 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 23:50:07,972 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-28 23:50:07,972 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-28 23:50:07,993 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 23:50:08,033 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79bdf90d-d18c-4543-ae94-8485702dc626/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (50)] Forceful destruction successful, exit code 0 [2021-10-28 23:50:08,034 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:50:08,034 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79bdf90d-d18c-4543-ae94-8485702dc626/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:50:08,035 INFO L229 MonitoredProcess]: Starting monitored process 51 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79bdf90d-d18c-4543-ae94-8485702dc626/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:50:08,039 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79bdf90d-d18c-4543-ae94-8485702dc626/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (51)] Waiting until timeout for monitored process [2021-10-28 23:50:08,040 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 [2021-10-28 23:50:08,048 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 23:50:08,048 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 23:50:08,048 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 23:50:08,048 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 23:50:08,048 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 23:50:08,049 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-28 23:50:08,049 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 23:50:08,073 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 23:50:08,104 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79bdf90d-d18c-4543-ae94-8485702dc626/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (51)] Ended with exit code 0 [2021-10-28 23:50:08,104 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:50:08,105 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79bdf90d-d18c-4543-ae94-8485702dc626/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:50:08,105 INFO L229 MonitoredProcess]: Starting monitored process 52 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79bdf90d-d18c-4543-ae94-8485702dc626/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:50:08,108 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79bdf90d-d18c-4543-ae94-8485702dc626/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (52)] Waiting until timeout for monitored process [2021-10-28 23:50:08,109 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 [2021-10-28 23:50:08,117 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 23:50:08,118 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 23:50:08,118 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 23:50:08,118 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 23:50:08,128 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-28 23:50:08,128 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-28 23:50:08,131 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 23:50:08,153 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79bdf90d-d18c-4543-ae94-8485702dc626/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (52)] Ended with exit code 0 [2021-10-28 23:50:08,153 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:50:08,153 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79bdf90d-d18c-4543-ae94-8485702dc626/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:50:08,154 INFO L229 MonitoredProcess]: Starting monitored process 53 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79bdf90d-d18c-4543-ae94-8485702dc626/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:50:08,155 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79bdf90d-d18c-4543-ae94-8485702dc626/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (53)] Waiting until timeout for monitored process [2021-10-28 23:50:08,156 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 [2021-10-28 23:50:08,165 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 23:50:08,166 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 23:50:08,166 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 23:50:08,166 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 23:50:08,168 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-28 23:50:08,168 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-28 23:50:08,172 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 23:50:08,194 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79bdf90d-d18c-4543-ae94-8485702dc626/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (53)] Forceful destruction successful, exit code 0 [2021-10-28 23:50:08,194 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:50:08,195 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79bdf90d-d18c-4543-ae94-8485702dc626/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:50:08,195 INFO L229 MonitoredProcess]: Starting monitored process 54 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79bdf90d-d18c-4543-ae94-8485702dc626/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:50:08,196 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79bdf90d-d18c-4543-ae94-8485702dc626/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (54)] Waiting until timeout for monitored process [2021-10-28 23:50:08,197 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 [2021-10-28 23:50:08,205 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 23:50:08,205 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 23:50:08,205 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 23:50:08,205 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 23:50:08,208 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-28 23:50:08,208 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-28 23:50:08,212 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 23:50:08,235 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79bdf90d-d18c-4543-ae94-8485702dc626/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (54)] Forceful destruction successful, exit code 0 [2021-10-28 23:50:08,235 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:50:08,235 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79bdf90d-d18c-4543-ae94-8485702dc626/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:50:08,236 INFO L229 MonitoredProcess]: Starting monitored process 55 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79bdf90d-d18c-4543-ae94-8485702dc626/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:50:08,237 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 23:50:08,238 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79bdf90d-d18c-4543-ae94-8485702dc626/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (55)] Waiting until timeout for monitored process [2021-10-28 23:50:08,245 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 23:50:08,246 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 23:50:08,246 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 23:50:08,246 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 23:50:08,247 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-28 23:50:08,247 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-28 23:50:08,250 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 23:50:08,272 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79bdf90d-d18c-4543-ae94-8485702dc626/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (55)] Ended with exit code 0 [2021-10-28 23:50:08,272 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:50:08,272 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79bdf90d-d18c-4543-ae94-8485702dc626/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:50:08,273 INFO L229 MonitoredProcess]: Starting monitored process 56 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79bdf90d-d18c-4543-ae94-8485702dc626/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:50:08,274 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79bdf90d-d18c-4543-ae94-8485702dc626/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (56)] Waiting until timeout for monitored process [2021-10-28 23:50:08,275 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 [2021-10-28 23:50:08,283 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 23:50:08,283 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 23:50:08,283 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 23:50:08,283 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 23:50:08,285 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-28 23:50:08,285 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-28 23:50:08,289 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 23:50:08,315 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79bdf90d-d18c-4543-ae94-8485702dc626/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (56)] Ended with exit code 0 [2021-10-28 23:50:08,316 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:50:08,316 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79bdf90d-d18c-4543-ae94-8485702dc626/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:50:08,317 INFO L229 MonitoredProcess]: Starting monitored process 57 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79bdf90d-d18c-4543-ae94-8485702dc626/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:50:08,317 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79bdf90d-d18c-4543-ae94-8485702dc626/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (57)] Waiting until timeout for monitored process [2021-10-28 23:50:08,318 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 [2021-10-28 23:50:08,326 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 23:50:08,326 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 23:50:08,326 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 23:50:08,326 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 23:50:08,333 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-28 23:50:08,333 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-28 23:50:08,357 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2021-10-28 23:50:08,417 INFO L443 ModelExtractionUtils]: Simplification made 18 calls to the SMT solver. [2021-10-28 23:50:08,417 INFO L444 ModelExtractionUtils]: 1 out of 22 variables were initially zero. Simplification set additionally 18 variables to zero. [2021-10-28 23:50:08,417 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:50:08,418 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79bdf90d-d18c-4543-ae94-8485702dc626/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:50:08,426 INFO L229 MonitoredProcess]: Starting monitored process 58 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79bdf90d-d18c-4543-ae94-8485702dc626/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:50:08,428 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2021-10-28 23:50:08,438 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79bdf90d-d18c-4543-ae94-8485702dc626/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (58)] Waiting until timeout for monitored process [2021-10-28 23:50:08,462 INFO L438 nArgumentSynthesizer]: Removed 2 redundant supporting invariants from a total of 2. [2021-10-28 23:50:08,462 INFO L513 LassoAnalysis]: Proved termination. [2021-10-28 23:50:08,462 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_f_~i~1) = -2*ULTIMATE.start_f_~i~1 + 3 Supporting invariants [] [2021-10-28 23:50:08,505 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79bdf90d-d18c-4543-ae94-8485702dc626/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (57)] Forceful destruction successful, exit code 0 [2021-10-28 23:50:08,790 INFO L297 tatePredicateManager]: 57 out of 57 supporting invariants were superfluous and have been removed [2021-10-28 23:50:08,801 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:50:08,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:50:08,877 INFO L263 TraceCheckSpWp]: Trace formula consists of 165 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-28 23:50:08,878 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 23:50:08,915 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79bdf90d-d18c-4543-ae94-8485702dc626/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (58)] Ended with exit code 0 [2021-10-28 23:50:08,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:50:08,935 INFO L263 TraceCheckSpWp]: Trace formula consists of 14 conjuncts, 4 conjunts are in the unsatisfiable core [2021-10-28 23:50:08,936 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 23:50:08,970 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 23:50:08,971 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 [2021-10-28 23:50:08,971 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 29 states and 35 transitions. cyclomatic complexity: 10 Second operand has 3 states, 3 states have (on average 5.0) internal successors, (15), 3 states have internal predecessors, (15), 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) [2021-10-28 23:50:08,996 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 29 states and 35 transitions. cyclomatic complexity: 10. Second operand has 3 states, 3 states have (on average 5.0) internal successors, (15), 3 states have internal predecessors, (15), 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 68 states and 88 transitions. Complement of second has 6 states. [2021-10-28 23:50:08,996 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 [2021-10-28 23:50:08,996 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 5.0) internal successors, (15), 3 states have internal predecessors, (15), 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) [2021-10-28 23:50:08,997 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 47 transitions. [2021-10-28 23:50:08,997 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 47 transitions. Stem has 14 letters. Loop has 3 letters. [2021-10-28 23:50:08,998 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-28 23:50:08,998 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 47 transitions. Stem has 17 letters. Loop has 3 letters. [2021-10-28 23:50:08,998 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-28 23:50:08,999 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 47 transitions. Stem has 14 letters. Loop has 6 letters. [2021-10-28 23:50:08,999 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-28 23:50:08,999 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 68 states and 88 transitions. [2021-10-28 23:50:09,001 INFO L131 ngComponentsAnalysis]: Automaton has 4 accepting balls. 20 [2021-10-28 23:50:09,002 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 68 states to 43 states and 54 transitions. [2021-10-28 23:50:09,002 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 34 [2021-10-28 23:50:09,002 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 36 [2021-10-28 23:50:09,002 INFO L73 IsDeterministic]: Start isDeterministic. Operand 43 states and 54 transitions. [2021-10-28 23:50:09,002 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2021-10-28 23:50:09,002 INFO L681 BuchiCegarLoop]: Abstraction has 43 states and 54 transitions. [2021-10-28 23:50:09,002 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 43 states and 54 transitions. [2021-10-28 23:50:09,005 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 43 to 31. [2021-10-28 23:50:09,005 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 31 states, 31 states have (on average 1.2580645161290323) internal successors, (39), 30 states have internal predecessors, (39), 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) [2021-10-28 23:50:09,006 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 31 states and 39 transitions. [2021-10-28 23:50:09,006 INFO L704 BuchiCegarLoop]: Abstraction has 31 states and 39 transitions. [2021-10-28 23:50:09,006 INFO L587 BuchiCegarLoop]: Abstraction has 31 states and 39 transitions. [2021-10-28 23:50:09,006 INFO L425 BuchiCegarLoop]: ======== Iteration 6============ [2021-10-28 23:50:09,006 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 31 states and 39 transitions. [2021-10-28 23:50:09,007 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 10 [2021-10-28 23:50:09,007 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-28 23:50:09,007 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-28 23:50:09,008 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 23:50:09,008 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2021-10-28 23:50:09,009 INFO L791 eck$LassoCheckResult]: Stem: 955#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string4.base, #t~string4.offset := #Ultimate.allocOnStack(2);call write~init~int(48, #t~string4.base, #t~string4.offset, 1);call write~init~int(0, #t~string4.base, 1 + #t~string4.offset, 1);call #t~string5.base, #t~string5.offset := #Ultimate.allocOnStack(14);call #t~string6.base, #t~string6.offset := #Ultimate.allocOnStack(12);call ~#pp~0.base, ~#pp~0.offset := #Ultimate.allocOnStack(8);call write~init~$Pointer$(0, 0, ~#pp~0.base, ~#pp~0.offset, 4);call write~init~$Pointer$(0, 0, ~#pp~0.base, 4 + ~#pp~0.offset, 4);call ~#pstate~0.base, ~#pstate~0.offset := #Ultimate.allocOnStack(8);call write~init~int(0, ~#pstate~0.base, ~#pstate~0.offset, 4);call write~init~int(0, ~#pstate~0.base, 4 + ~#pstate~0.offset, 4);~counter~0 := 1; 942#L-1 havoc main_#res;havoc main_#t~ret14.base, main_#t~ret14.offset, main_#t~ret15.base, main_#t~ret15.offset, main_~a~0.base, main_~a~0.offset, main_~b~0.base, main_~b~0.offset;havoc main_~a~0.base, main_~a~0.offset;havoc main_~b~0.base, main_~b~0.offset;havoc init_#t~post7, init_~i~0;havoc init_~i~0;init_~i~0 := 0; 943#L19-3 assume !!(init_~i~0 < 2);call write~$Pointer$(0, 0, ~#pp~0.base, ~#pp~0.offset + 4 * init_~i~0, 4);call write~int(0, ~#pstate~0.base, ~#pstate~0.offset + 4 * init_~i~0, 4); 935#L19-2 init_#t~post7 := init_~i~0;init_~i~0 := 1 + init_#t~post7;havoc init_#t~post7; 936#L19-3 assume !!(init_~i~0 < 2);call write~$Pointer$(0, 0, ~#pp~0.base, ~#pp~0.offset + 4 * init_~i~0, 4);call write~int(0, ~#pstate~0.base, ~#pstate~0.offset + 4 * init_~i~0, 4); 964#L19-2 init_#t~post7 := init_~i~0;init_~i~0 := 1 + init_#t~post7;havoc init_#t~post7; 965#L19-3 assume !(init_~i~0 < 2); 961#L17 malloc_#in~size := 4;havoc malloc_#res.base, malloc_#res.offset;havoc malloc_#t~post13, malloc_~size;malloc_~size := malloc_#in~size;malloc_#t~post13 := ~counter~0;~counter~0 := 1 + malloc_#t~post13;malloc_#res.base, malloc_#res.offset := 0, malloc_#t~post13;havoc malloc_#t~post13; 947#L49 main_#t~ret14.base, main_#t~ret14.offset := malloc_#res.base, malloc_#res.offset;main_~a~0.base, main_~a~0.offset := main_#t~ret14.base, main_#t~ret14.offset;havoc main_#t~ret14.base, main_#t~ret14.offset;malloc_#in~size := 4;havoc malloc_#res.base, malloc_#res.offset;havoc malloc_#t~post13, malloc_~size;malloc_~size := malloc_#in~size;malloc_#t~post13 := ~counter~0;~counter~0 := 1 + malloc_#t~post13;malloc_#res.base, malloc_#res.offset := 0, malloc_#t~post13;havoc malloc_#t~post13; 946#L49-1 main_#t~ret15.base, main_#t~ret15.offset := malloc_#res.base, malloc_#res.offset;main_~b~0.base, main_~b~0.offset := main_#t~ret15.base, main_#t~ret15.offset;havoc main_#t~ret15.base, main_#t~ret15.offset; 940#L59 assume !((main_~a~0.base == 0 && main_~a~0.offset == 0) || (main_~b~0.base == 0 && main_~b~0.offset == 0));f_#in~pointer.base, f_#in~pointer.offset := main_~a~0.base, main_~a~0.offset;havoc f_#t~mem9.base, f_#t~mem9.offset, f_#t~post8, f_~pointer.base, f_~pointer.offset, f_~i~1;f_~pointer.base, f_~pointer.offset := f_#in~pointer.base, f_#in~pointer.offset;havoc f_~i~1;f_~i~1 := 0; 941#L27-3 assume !!(f_~i~1 < 2);call f_#t~mem9.base, f_#t~mem9.offset := read~$Pointer$(~#pp~0.base, ~#pp~0.offset + 4 * f_~i~1, 4); 963#L28 assume f_#t~mem9.base == 0 && f_#t~mem9.offset == 0;havoc f_#t~mem9.base, f_#t~mem9.offset;call write~$Pointer$(f_~pointer.base, f_~pointer.offset, ~#pp~0.base, ~#pp~0.offset + 4 * f_~i~1, 4);call write~int(1, ~#pstate~0.base, ~#pstate~0.offset + 4 * f_~i~1, 4); 957#L25 f_#in~pointer.base, f_#in~pointer.offset := main_~b~0.base, main_~b~0.offset;havoc f_#t~mem9.base, f_#t~mem9.offset, f_#t~post8, f_~pointer.base, f_~pointer.offset, f_~i~1;f_~pointer.base, f_~pointer.offset := f_#in~pointer.base, f_#in~pointer.offset;havoc f_~i~1;f_~i~1 := 0; 958#L27-7 assume !(f_~i~1 < 2); 949#L25-1 g_#in~pointer.base, g_#in~pointer.offset := main_~a~0.base, main_~a~0.offset;havoc g_#t~mem11.base, g_#t~mem11.offset, g_#t~mem12, g_#t~post10, g_~pointer.base, g_~pointer.offset, g_~i~2;g_~pointer.base, g_~pointer.offset := g_#in~pointer.base, g_#in~pointer.offset;havoc g_~i~2;g_~i~2 := 0; 937#L38-3 [2021-10-28 23:50:09,009 INFO L793 eck$LassoCheckResult]: Loop: 937#L38-3 assume !!(g_~i~2 < 2);call g_#t~mem11.base, g_#t~mem11.offset := read~$Pointer$(~#pp~0.base, ~#pp~0.offset + 4 * g_~i~2, 4); 939#L39 assume !(g_#t~mem11.base == g_~pointer.base && g_#t~mem11.offset == g_~pointer.offset);havoc g_#t~mem11.base, g_#t~mem11.offset; 953#L38-2 g_#t~post10 := g_~i~2;g_~i~2 := 1 + g_#t~post10;havoc g_#t~post10; 937#L38-3 [2021-10-28 23:50:09,010 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:50:09,010 INFO L85 PathProgramCache]: Analyzing trace with hash -809029298, now seen corresponding path program 1 times [2021-10-28 23:50:09,010 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 23:50:09,010 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [651398302] [2021-10-28 23:50:09,010 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:50:09,011 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 23:50:09,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:50:09,043 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2021-10-28 23:50:09,043 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 23:50:09,044 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [651398302] [2021-10-28 23:50:09,044 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [651398302] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-28 23:50:09,044 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-28 23:50:09,044 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-28 23:50:09,044 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2087956773] [2021-10-28 23:50:09,045 INFO L796 eck$LassoCheckResult]: stem already infeasible [2021-10-28 23:50:09,045 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:50:09,045 INFO L85 PathProgramCache]: Analyzing trace with hash 100776, now seen corresponding path program 1 times [2021-10-28 23:50:09,046 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 23:50:09,046 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [276052690] [2021-10-28 23:50:09,046 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:50:09,046 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 23:50:09,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 23:50:09,050 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-28 23:50:09,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 23:50:09,054 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-28 23:50:09,118 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 23:50:09,119 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-28 23:50:09,119 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-28 23:50:09,119 INFO L87 Difference]: Start difference. First operand 31 states and 39 transitions. cyclomatic complexity: 12 Second operand has 3 states, 3 states have (on average 4.666666666666667) internal successors, (14), 3 states have internal predecessors, (14), 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) [2021-10-28 23:50:09,142 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 23:50:09,142 INFO L93 Difference]: Finished difference Result 46 states and 56 transitions. [2021-10-28 23:50:09,143 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-28 23:50:09,144 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 46 states and 56 transitions. [2021-10-28 23:50:09,144 INFO L131 ngComponentsAnalysis]: Automaton has 4 accepting balls. 20 [2021-10-28 23:50:09,145 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 46 states to 46 states and 56 transitions. [2021-10-28 23:50:09,145 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 37 [2021-10-28 23:50:09,146 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 37 [2021-10-28 23:50:09,146 INFO L73 IsDeterministic]: Start isDeterministic. Operand 46 states and 56 transitions. [2021-10-28 23:50:09,146 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2021-10-28 23:50:09,146 INFO L681 BuchiCegarLoop]: Abstraction has 46 states and 56 transitions. [2021-10-28 23:50:09,147 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 46 states and 56 transitions. [2021-10-28 23:50:09,149 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 46 to 31. [2021-10-28 23:50:09,149 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 31 states, 31 states have (on average 1.2258064516129032) internal successors, (38), 30 states have internal predecessors, (38), 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) [2021-10-28 23:50:09,150 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 31 states and 38 transitions. [2021-10-28 23:50:09,150 INFO L704 BuchiCegarLoop]: Abstraction has 31 states and 38 transitions. [2021-10-28 23:50:09,150 INFO L587 BuchiCegarLoop]: Abstraction has 31 states and 38 transitions. [2021-10-28 23:50:09,151 INFO L425 BuchiCegarLoop]: ======== Iteration 7============ [2021-10-28 23:50:09,151 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 31 states and 38 transitions. [2021-10-28 23:50:09,151 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 10 [2021-10-28 23:50:09,151 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-28 23:50:09,151 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-28 23:50:09,152 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 23:50:09,152 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2021-10-28 23:50:09,153 INFO L791 eck$LassoCheckResult]: Stem: 1038#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(14);call #t~string6.base, #t~string6.offset := #Ultimate.allocOnStack(12);call ~#pp~0.base, ~#pp~0.offset := #Ultimate.allocOnStack(8);call write~init~$Pointer$(0, 0, ~#pp~0.base, ~#pp~0.offset, 4);call write~init~$Pointer$(0, 0, ~#pp~0.base, 4 + ~#pp~0.offset, 4);call ~#pstate~0.base, ~#pstate~0.offset := #Ultimate.allocOnStack(8);call write~init~int(0, ~#pstate~0.base, ~#pstate~0.offset, 4);call write~init~int(0, ~#pstate~0.base, 4 + ~#pstate~0.offset, 4);~counter~0 := 1; 1025#L-1 havoc main_#res;havoc main_#t~ret14.base, main_#t~ret14.offset, main_#t~ret15.base, main_#t~ret15.offset, main_~a~0.base, main_~a~0.offset, main_~b~0.base, main_~b~0.offset;havoc main_~a~0.base, main_~a~0.offset;havoc main_~b~0.base, main_~b~0.offset;havoc init_#t~post7, init_~i~0;havoc init_~i~0;init_~i~0 := 0; 1026#L19-3 assume !!(init_~i~0 < 2);call write~$Pointer$(0, 0, ~#pp~0.base, ~#pp~0.offset + 4 * init_~i~0, 4);call write~int(0, ~#pstate~0.base, ~#pstate~0.offset + 4 * init_~i~0, 4); 1018#L19-2 init_#t~post7 := init_~i~0;init_~i~0 := 1 + init_#t~post7;havoc init_#t~post7; 1019#L19-3 assume !!(init_~i~0 < 2);call write~$Pointer$(0, 0, ~#pp~0.base, ~#pp~0.offset + 4 * init_~i~0, 4);call write~int(0, ~#pstate~0.base, ~#pstate~0.offset + 4 * init_~i~0, 4); 1047#L19-2 init_#t~post7 := init_~i~0;init_~i~0 := 1 + init_#t~post7;havoc init_#t~post7; 1048#L19-3 assume !(init_~i~0 < 2); 1043#L17 malloc_#in~size := 4;havoc malloc_#res.base, malloc_#res.offset;havoc malloc_#t~post13, malloc_~size;malloc_~size := malloc_#in~size;malloc_#t~post13 := ~counter~0;~counter~0 := 1 + malloc_#t~post13;malloc_#res.base, malloc_#res.offset := 0, malloc_#t~post13;havoc malloc_#t~post13; 1030#L49 main_#t~ret14.base, main_#t~ret14.offset := malloc_#res.base, malloc_#res.offset;main_~a~0.base, main_~a~0.offset := main_#t~ret14.base, main_#t~ret14.offset;havoc main_#t~ret14.base, main_#t~ret14.offset;malloc_#in~size := 4;havoc malloc_#res.base, malloc_#res.offset;havoc malloc_#t~post13, malloc_~size;malloc_~size := malloc_#in~size;malloc_#t~post13 := ~counter~0;~counter~0 := 1 + malloc_#t~post13;malloc_#res.base, malloc_#res.offset := 0, malloc_#t~post13;havoc malloc_#t~post13; 1027#L49-1 main_#t~ret15.base, main_#t~ret15.offset := malloc_#res.base, malloc_#res.offset;main_~b~0.base, main_~b~0.offset := main_#t~ret15.base, main_#t~ret15.offset;havoc main_#t~ret15.base, main_#t~ret15.offset; 1020#L59 assume !((main_~a~0.base == 0 && main_~a~0.offset == 0) || (main_~b~0.base == 0 && main_~b~0.offset == 0));f_#in~pointer.base, f_#in~pointer.offset := main_~a~0.base, main_~a~0.offset;havoc f_#t~mem9.base, f_#t~mem9.offset, f_#t~post8, f_~pointer.base, f_~pointer.offset, f_~i~1;f_~pointer.base, f_~pointer.offset := f_#in~pointer.base, f_#in~pointer.offset;havoc f_~i~1;f_~i~1 := 0; 1021#L27-3 assume !!(f_~i~1 < 2);call f_#t~mem9.base, f_#t~mem9.offset := read~$Pointer$(~#pp~0.base, ~#pp~0.offset + 4 * f_~i~1, 4); 1046#L28 assume f_#t~mem9.base == 0 && f_#t~mem9.offset == 0;havoc f_#t~mem9.base, f_#t~mem9.offset;call write~$Pointer$(f_~pointer.base, f_~pointer.offset, ~#pp~0.base, ~#pp~0.offset + 4 * f_~i~1, 4);call write~int(1, ~#pstate~0.base, ~#pstate~0.offset + 4 * f_~i~1, 4); 1040#L25 f_#in~pointer.base, f_#in~pointer.offset := main_~b~0.base, main_~b~0.offset;havoc f_#t~mem9.base, f_#t~mem9.offset, f_#t~post8, f_~pointer.base, f_~pointer.offset, f_~i~1;f_~pointer.base, f_~pointer.offset := f_#in~pointer.base, f_#in~pointer.offset;havoc f_~i~1;f_~i~1 := 0; 1041#L27-7 assume !!(f_~i~1 < 2);call f_#t~mem9.base, f_#t~mem9.offset := read~$Pointer$(~#pp~0.base, ~#pp~0.offset + 4 * f_~i~1, 4); 1031#L28-1 assume f_#t~mem9.base == 0 && f_#t~mem9.offset == 0;havoc f_#t~mem9.base, f_#t~mem9.offset;call write~$Pointer$(f_~pointer.base, f_~pointer.offset, ~#pp~0.base, ~#pp~0.offset + 4 * f_~i~1, 4);call write~int(1, ~#pstate~0.base, ~#pstate~0.offset + 4 * f_~i~1, 4); 1032#L25-1 g_#in~pointer.base, g_#in~pointer.offset := main_~a~0.base, main_~a~0.offset;havoc g_#t~mem11.base, g_#t~mem11.offset, g_#t~mem12, g_#t~post10, g_~pointer.base, g_~pointer.offset, g_~i~2;g_~pointer.base, g_~pointer.offset := g_#in~pointer.base, g_#in~pointer.offset;havoc g_~i~2;g_~i~2 := 0; 1022#L38-3 [2021-10-28 23:50:09,153 INFO L793 eck$LassoCheckResult]: Loop: 1022#L38-3 assume !!(g_~i~2 < 2);call g_#t~mem11.base, g_#t~mem11.offset := read~$Pointer$(~#pp~0.base, ~#pp~0.offset + 4 * g_~i~2, 4); 1024#L39 assume !(g_#t~mem11.base == g_~pointer.base && g_#t~mem11.offset == g_~pointer.offset);havoc g_#t~mem11.base, g_#t~mem11.offset; 1036#L38-2 g_#t~post10 := g_~i~2;g_~i~2 := 1 + g_#t~post10;havoc g_#t~post10; 1022#L38-3 [2021-10-28 23:50:09,153 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:50:09,153 INFO L85 PathProgramCache]: Analyzing trace with hash 689897275, now seen corresponding path program 1 times [2021-10-28 23:50:09,154 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 23:50:09,154 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [254327446] [2021-10-28 23:50:09,154 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:50:09,154 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 23:50:09,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:50:09,413 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2021-10-28 23:50:09,413 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 23:50:09,414 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [254327446] [2021-10-28 23:50:09,414 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [254327446] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-28 23:50:09,414 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-28 23:50:09,414 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-10-28 23:50:09,414 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [806292424] [2021-10-28 23:50:09,414 INFO L796 eck$LassoCheckResult]: stem already infeasible [2021-10-28 23:50:09,415 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:50:09,415 INFO L85 PathProgramCache]: Analyzing trace with hash 100776, now seen corresponding path program 2 times [2021-10-28 23:50:09,415 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 23:50:09,415 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [72156526] [2021-10-28 23:50:09,415 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:50:09,415 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 23:50:09,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 23:50:09,419 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-28 23:50:09,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 23:50:09,423 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-28 23:50:09,480 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 23:50:09,481 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-10-28 23:50:09,481 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2021-10-28 23:50:09,481 INFO L87 Difference]: Start difference. First operand 31 states and 38 transitions. cyclomatic complexity: 11 Second operand has 9 states, 9 states have (on average 1.6666666666666667) internal successors, (15), 8 states have internal predecessors, (15), 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) [2021-10-28 23:50:09,738 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 23:50:09,739 INFO L93 Difference]: Finished difference Result 46 states and 55 transitions. [2021-10-28 23:50:09,739 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-10-28 23:50:09,739 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 46 states and 55 transitions. [2021-10-28 23:50:09,740 INFO L131 ngComponentsAnalysis]: Automaton has 4 accepting balls. 20 [2021-10-28 23:50:09,741 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 46 states to 45 states and 54 transitions. [2021-10-28 23:50:09,741 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 36 [2021-10-28 23:50:09,741 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 36 [2021-10-28 23:50:09,741 INFO L73 IsDeterministic]: Start isDeterministic. Operand 45 states and 54 transitions. [2021-10-28 23:50:09,741 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2021-10-28 23:50:09,742 INFO L681 BuchiCegarLoop]: Abstraction has 45 states and 54 transitions. [2021-10-28 23:50:09,742 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 45 states and 54 transitions. [2021-10-28 23:50:09,744 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 45 to 31. [2021-10-28 23:50:09,744 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 31 states, 31 states have (on average 1.1935483870967742) internal successors, (37), 30 states have internal predecessors, (37), 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) [2021-10-28 23:50:09,745 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 31 states and 37 transitions. [2021-10-28 23:50:09,745 INFO L704 BuchiCegarLoop]: Abstraction has 31 states and 37 transitions. [2021-10-28 23:50:09,745 INFO L587 BuchiCegarLoop]: Abstraction has 31 states and 37 transitions. [2021-10-28 23:50:09,745 INFO L425 BuchiCegarLoop]: ======== Iteration 8============ [2021-10-28 23:50:09,745 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 31 states and 37 transitions. [2021-10-28 23:50:09,746 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 10 [2021-10-28 23:50:09,746 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-28 23:50:09,746 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-28 23:50:09,747 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 23:50:09,747 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2021-10-28 23:50:09,747 INFO L791 eck$LassoCheckResult]: Stem: 1137#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string4.base, #t~string4.offset := #Ultimate.allocOnStack(2);call write~init~int(48, #t~string4.base, #t~string4.offset, 1);call write~init~int(0, #t~string4.base, 1 + #t~string4.offset, 1);call #t~string5.base, #t~string5.offset := #Ultimate.allocOnStack(14);call #t~string6.base, #t~string6.offset := #Ultimate.allocOnStack(12);call ~#pp~0.base, ~#pp~0.offset := #Ultimate.allocOnStack(8);call write~init~$Pointer$(0, 0, ~#pp~0.base, ~#pp~0.offset, 4);call write~init~$Pointer$(0, 0, ~#pp~0.base, 4 + ~#pp~0.offset, 4);call ~#pstate~0.base, ~#pstate~0.offset := #Ultimate.allocOnStack(8);call write~init~int(0, ~#pstate~0.base, ~#pstate~0.offset, 4);call write~init~int(0, ~#pstate~0.base, 4 + ~#pstate~0.offset, 4);~counter~0 := 1; 1124#L-1 havoc main_#res;havoc main_#t~ret14.base, main_#t~ret14.offset, main_#t~ret15.base, main_#t~ret15.offset, main_~a~0.base, main_~a~0.offset, main_~b~0.base, main_~b~0.offset;havoc main_~a~0.base, main_~a~0.offset;havoc main_~b~0.base, main_~b~0.offset;havoc init_#t~post7, init_~i~0;havoc init_~i~0;init_~i~0 := 0; 1125#L19-3 assume !!(init_~i~0 < 2);call write~$Pointer$(0, 0, ~#pp~0.base, ~#pp~0.offset + 4 * init_~i~0, 4);call write~int(0, ~#pstate~0.base, ~#pstate~0.offset + 4 * init_~i~0, 4); 1117#L19-2 init_#t~post7 := init_~i~0;init_~i~0 := 1 + init_#t~post7;havoc init_#t~post7; 1118#L19-3 assume !!(init_~i~0 < 2);call write~$Pointer$(0, 0, ~#pp~0.base, ~#pp~0.offset + 4 * init_~i~0, 4);call write~int(0, ~#pstate~0.base, ~#pstate~0.offset + 4 * init_~i~0, 4); 1146#L19-2 init_#t~post7 := init_~i~0;init_~i~0 := 1 + init_#t~post7;havoc init_#t~post7; 1147#L19-3 assume !(init_~i~0 < 2); 1143#L17 malloc_#in~size := 4;havoc malloc_#res.base, malloc_#res.offset;havoc malloc_#t~post13, malloc_~size;malloc_~size := malloc_#in~size;malloc_#t~post13 := ~counter~0;~counter~0 := 1 + malloc_#t~post13;malloc_#res.base, malloc_#res.offset := 0, malloc_#t~post13;havoc malloc_#t~post13; 1133#L49 main_#t~ret14.base, main_#t~ret14.offset := malloc_#res.base, malloc_#res.offset;main_~a~0.base, main_~a~0.offset := main_#t~ret14.base, main_#t~ret14.offset;havoc main_#t~ret14.base, main_#t~ret14.offset;malloc_#in~size := 4;havoc malloc_#res.base, malloc_#res.offset;havoc malloc_#t~post13, malloc_~size;malloc_~size := malloc_#in~size;malloc_#t~post13 := ~counter~0;~counter~0 := 1 + malloc_#t~post13;malloc_#res.base, malloc_#res.offset := 0, malloc_#t~post13;havoc malloc_#t~post13; 1128#L49-1 main_#t~ret15.base, main_#t~ret15.offset := malloc_#res.base, malloc_#res.offset;main_~b~0.base, main_~b~0.offset := main_#t~ret15.base, main_#t~ret15.offset;havoc main_#t~ret15.base, main_#t~ret15.offset; 1122#L59 assume !((main_~a~0.base == 0 && main_~a~0.offset == 0) || (main_~b~0.base == 0 && main_~b~0.offset == 0));f_#in~pointer.base, f_#in~pointer.offset := main_~a~0.base, main_~a~0.offset;havoc f_#t~mem9.base, f_#t~mem9.offset, f_#t~post8, f_~pointer.base, f_~pointer.offset, f_~i~1;f_~pointer.base, f_~pointer.offset := f_#in~pointer.base, f_#in~pointer.offset;havoc f_~i~1;f_~i~1 := 0; 1123#L27-3 assume !!(f_~i~1 < 2);call f_#t~mem9.base, f_#t~mem9.offset := read~$Pointer$(~#pp~0.base, ~#pp~0.offset + 4 * f_~i~1, 4); 1145#L28 assume f_#t~mem9.base == 0 && f_#t~mem9.offset == 0;havoc f_#t~mem9.base, f_#t~mem9.offset;call write~$Pointer$(f_~pointer.base, f_~pointer.offset, ~#pp~0.base, ~#pp~0.offset + 4 * f_~i~1, 4);call write~int(1, ~#pstate~0.base, ~#pstate~0.offset + 4 * f_~i~1, 4); 1139#L25 f_#in~pointer.base, f_#in~pointer.offset := main_~b~0.base, main_~b~0.offset;havoc f_#t~mem9.base, f_#t~mem9.offset, f_#t~post8, f_~pointer.base, f_~pointer.offset, f_~i~1;f_~pointer.base, f_~pointer.offset := f_#in~pointer.base, f_#in~pointer.offset;havoc f_~i~1;f_~i~1 := 0; 1140#L27-7 assume !!(f_~i~1 < 2);call f_#t~mem9.base, f_#t~mem9.offset := read~$Pointer$(~#pp~0.base, ~#pp~0.offset + 4 * f_~i~1, 4); 1131#L28-1 assume !(f_#t~mem9.base == 0 && f_#t~mem9.offset == 0);havoc f_#t~mem9.base, f_#t~mem9.offset; 1132#L27-6 f_#t~post8 := f_~i~1;f_~i~1 := 1 + f_#t~post8;havoc f_#t~post8; 1138#L27-7 assume !(f_~i~1 < 2); 1130#L25-1 g_#in~pointer.base, g_#in~pointer.offset := main_~a~0.base, main_~a~0.offset;havoc g_#t~mem11.base, g_#t~mem11.offset, g_#t~mem12, g_#t~post10, g_~pointer.base, g_~pointer.offset, g_~i~2;g_~pointer.base, g_~pointer.offset := g_#in~pointer.base, g_#in~pointer.offset;havoc g_~i~2;g_~i~2 := 0; 1119#L38-3 [2021-10-28 23:50:09,747 INFO L793 eck$LassoCheckResult]: Loop: 1119#L38-3 assume !!(g_~i~2 < 2);call g_#t~mem11.base, g_#t~mem11.offset := read~$Pointer$(~#pp~0.base, ~#pp~0.offset + 4 * g_~i~2, 4); 1121#L39 assume !(g_#t~mem11.base == g_~pointer.base && g_#t~mem11.offset == g_~pointer.offset);havoc g_#t~mem11.base, g_#t~mem11.offset; 1135#L38-2 g_#t~post10 := g_~i~2;g_~i~2 := 1 + g_#t~post10;havoc g_#t~post10; 1119#L38-3 [2021-10-28 23:50:09,747 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:50:09,748 INFO L85 PathProgramCache]: Analyzing trace with hash 1566375042, now seen corresponding path program 1 times [2021-10-28 23:50:09,748 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 23:50:09,748 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1845708252] [2021-10-28 23:50:09,748 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:50:09,748 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 23:50:09,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:50:09,833 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2021-10-28 23:50:09,833 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 23:50:09,833 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1845708252] [2021-10-28 23:50:09,833 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1845708252] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-28 23:50:09,834 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2135924043] [2021-10-28 23:50:09,834 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:50:09,834 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-28 23:50:09,834 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79bdf90d-d18c-4543-ae94-8485702dc626/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:50:09,835 INFO L229 MonitoredProcess]: Starting monitored process 59 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79bdf90d-d18c-4543-ae94-8485702dc626/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-28 23:50:09,858 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79bdf90d-d18c-4543-ae94-8485702dc626/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (59)] Waiting until timeout for monitored process [2021-10-28 23:50:09,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:50:09,960 INFO L263 TraceCheckSpWp]: Trace formula consists of 188 conjuncts, 3 conjunts are in the unsatisfiable core [2021-10-28 23:50:09,961 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 23:50:10,016 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2021-10-28 23:50:10,016 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2135924043] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-28 23:50:10,017 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-28 23:50:10,017 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 5 [2021-10-28 23:50:10,017 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1344520124] [2021-10-28 23:50:10,017 INFO L796 eck$LassoCheckResult]: stem already infeasible [2021-10-28 23:50:10,018 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:50:10,018 INFO L85 PathProgramCache]: Analyzing trace with hash 100776, now seen corresponding path program 3 times [2021-10-28 23:50:10,018 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 23:50:10,018 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1443028065] [2021-10-28 23:50:10,018 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:50:10,019 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 23:50:10,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 23:50:10,023 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-28 23:50:10,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 23:50:10,027 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-28 23:50:10,082 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 23:50:10,082 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-10-28 23:50:10,083 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2021-10-28 23:50:10,083 INFO L87 Difference]: Start difference. First operand 31 states and 37 transitions. cyclomatic complexity: 10 Second operand has 5 states, 5 states have (on average 4.2) internal successors, (21), 5 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) [2021-10-28 23:50:10,114 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 23:50:10,114 INFO L93 Difference]: Finished difference Result 46 states and 56 transitions. [2021-10-28 23:50:10,116 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-28 23:50:10,117 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 46 states and 56 transitions. [2021-10-28 23:50:10,118 INFO L131 ngComponentsAnalysis]: Automaton has 4 accepting balls. 20 [2021-10-28 23:50:10,118 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 46 states to 46 states and 56 transitions. [2021-10-28 23:50:10,119 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 36 [2021-10-28 23:50:10,119 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 36 [2021-10-28 23:50:10,119 INFO L73 IsDeterministic]: Start isDeterministic. Operand 46 states and 56 transitions. [2021-10-28 23:50:10,119 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2021-10-28 23:50:10,119 INFO L681 BuchiCegarLoop]: Abstraction has 46 states and 56 transitions. [2021-10-28 23:50:10,120 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 46 states and 56 transitions. [2021-10-28 23:50:10,122 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 46 to 34. [2021-10-28 23:50:10,122 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 34 states, 34 states have (on average 1.2058823529411764) internal successors, (41), 33 states have internal predecessors, (41), 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) [2021-10-28 23:50:10,123 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34 states to 34 states and 41 transitions. [2021-10-28 23:50:10,123 INFO L704 BuchiCegarLoop]: Abstraction has 34 states and 41 transitions. [2021-10-28 23:50:10,123 INFO L587 BuchiCegarLoop]: Abstraction has 34 states and 41 transitions. [2021-10-28 23:50:10,123 INFO L425 BuchiCegarLoop]: ======== Iteration 9============ [2021-10-28 23:50:10,123 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 34 states and 41 transitions. [2021-10-28 23:50:10,124 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 10 [2021-10-28 23:50:10,124 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-28 23:50:10,124 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-28 23:50:10,125 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 23:50:10,125 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2021-10-28 23:50:10,126 INFO L791 eck$LassoCheckResult]: Stem: 1276#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(14);call #t~string6.base, #t~string6.offset := #Ultimate.allocOnStack(12);call ~#pp~0.base, ~#pp~0.offset := #Ultimate.allocOnStack(8);call write~init~$Pointer$(0, 0, ~#pp~0.base, ~#pp~0.offset, 4);call write~init~$Pointer$(0, 0, ~#pp~0.base, 4 + ~#pp~0.offset, 4);call ~#pstate~0.base, ~#pstate~0.offset := #Ultimate.allocOnStack(8);call write~init~int(0, ~#pstate~0.base, ~#pstate~0.offset, 4);call write~init~int(0, ~#pstate~0.base, 4 + ~#pstate~0.offset, 4);~counter~0 := 1; 1263#L-1 havoc main_#res;havoc main_#t~ret14.base, main_#t~ret14.offset, main_#t~ret15.base, main_#t~ret15.offset, main_~a~0.base, main_~a~0.offset, main_~b~0.base, main_~b~0.offset;havoc main_~a~0.base, main_~a~0.offset;havoc main_~b~0.base, main_~b~0.offset;havoc init_#t~post7, init_~i~0;havoc init_~i~0;init_~i~0 := 0; 1264#L19-3 assume !!(init_~i~0 < 2);call write~$Pointer$(0, 0, ~#pp~0.base, ~#pp~0.offset + 4 * init_~i~0, 4);call write~int(0, ~#pstate~0.base, ~#pstate~0.offset + 4 * init_~i~0, 4); 1256#L19-2 init_#t~post7 := init_~i~0;init_~i~0 := 1 + init_#t~post7;havoc init_#t~post7; 1257#L19-3 assume !!(init_~i~0 < 2);call write~$Pointer$(0, 0, ~#pp~0.base, ~#pp~0.offset + 4 * init_~i~0, 4);call write~int(0, ~#pstate~0.base, ~#pstate~0.offset + 4 * init_~i~0, 4); 1286#L19-2 init_#t~post7 := init_~i~0;init_~i~0 := 1 + init_#t~post7;havoc init_#t~post7; 1287#L19-3 assume !(init_~i~0 < 2); 1281#L17 malloc_#in~size := 4;havoc malloc_#res.base, malloc_#res.offset;havoc malloc_#t~post13, malloc_~size;malloc_~size := malloc_#in~size;malloc_#t~post13 := ~counter~0;~counter~0 := 1 + malloc_#t~post13;malloc_#res.base, malloc_#res.offset := 0, malloc_#t~post13;havoc malloc_#t~post13; 1268#L49 main_#t~ret14.base, main_#t~ret14.offset := malloc_#res.base, malloc_#res.offset;main_~a~0.base, main_~a~0.offset := main_#t~ret14.base, main_#t~ret14.offset;havoc main_#t~ret14.base, main_#t~ret14.offset;malloc_#in~size := 4;havoc malloc_#res.base, malloc_#res.offset;havoc malloc_#t~post13, malloc_~size;malloc_~size := malloc_#in~size;malloc_#t~post13 := ~counter~0;~counter~0 := 1 + malloc_#t~post13;malloc_#res.base, malloc_#res.offset := 0, malloc_#t~post13;havoc malloc_#t~post13; 1265#L49-1 main_#t~ret15.base, main_#t~ret15.offset := malloc_#res.base, malloc_#res.offset;main_~b~0.base, main_~b~0.offset := main_#t~ret15.base, main_#t~ret15.offset;havoc main_#t~ret15.base, main_#t~ret15.offset; 1258#L59 assume !((main_~a~0.base == 0 && main_~a~0.offset == 0) || (main_~b~0.base == 0 && main_~b~0.offset == 0));f_#in~pointer.base, f_#in~pointer.offset := main_~a~0.base, main_~a~0.offset;havoc f_#t~mem9.base, f_#t~mem9.offset, f_#t~post8, f_~pointer.base, f_~pointer.offset, f_~i~1;f_~pointer.base, f_~pointer.offset := f_#in~pointer.base, f_#in~pointer.offset;havoc f_~i~1;f_~i~1 := 0; 1259#L27-3 assume !!(f_~i~1 < 2);call f_#t~mem9.base, f_#t~mem9.offset := read~$Pointer$(~#pp~0.base, ~#pp~0.offset + 4 * f_~i~1, 4); 1284#L28 assume f_#t~mem9.base == 0 && f_#t~mem9.offset == 0;havoc f_#t~mem9.base, f_#t~mem9.offset;call write~$Pointer$(f_~pointer.base, f_~pointer.offset, ~#pp~0.base, ~#pp~0.offset + 4 * f_~i~1, 4);call write~int(1, ~#pstate~0.base, ~#pstate~0.offset + 4 * f_~i~1, 4); 1278#L25 f_#in~pointer.base, f_#in~pointer.offset := main_~b~0.base, main_~b~0.offset;havoc f_#t~mem9.base, f_#t~mem9.offset, f_#t~post8, f_~pointer.base, f_~pointer.offset, f_~i~1;f_~pointer.base, f_~pointer.offset := f_#in~pointer.base, f_#in~pointer.offset;havoc f_~i~1;f_~i~1 := 0; 1279#L27-7 assume !!(f_~i~1 < 2);call f_#t~mem9.base, f_#t~mem9.offset := read~$Pointer$(~#pp~0.base, ~#pp~0.offset + 4 * f_~i~1, 4); 1271#L28-1 assume !(f_#t~mem9.base == 0 && f_#t~mem9.offset == 0);havoc f_#t~mem9.base, f_#t~mem9.offset; 1272#L27-6 f_#t~post8 := f_~i~1;f_~i~1 := 1 + f_#t~post8;havoc f_#t~post8; 1277#L27-7 assume !!(f_~i~1 < 2);call f_#t~mem9.base, f_#t~mem9.offset := read~$Pointer$(~#pp~0.base, ~#pp~0.offset + 4 * f_~i~1, 4); 1269#L28-1 assume f_#t~mem9.base == 0 && f_#t~mem9.offset == 0;havoc f_#t~mem9.base, f_#t~mem9.offset;call write~$Pointer$(f_~pointer.base, f_~pointer.offset, ~#pp~0.base, ~#pp~0.offset + 4 * f_~i~1, 4);call write~int(1, ~#pstate~0.base, ~#pstate~0.offset + 4 * f_~i~1, 4); 1270#L25-1 g_#in~pointer.base, g_#in~pointer.offset := main_~a~0.base, main_~a~0.offset;havoc g_#t~mem11.base, g_#t~mem11.offset, g_#t~mem12, g_#t~post10, g_~pointer.base, g_~pointer.offset, g_~i~2;g_~pointer.base, g_~pointer.offset := g_#in~pointer.base, g_#in~pointer.offset;havoc g_~i~2;g_~i~2 := 0; 1260#L38-3 [2021-10-28 23:50:10,126 INFO L793 eck$LassoCheckResult]: Loop: 1260#L38-3 assume !!(g_~i~2 < 2);call g_#t~mem11.base, g_#t~mem11.offset := read~$Pointer$(~#pp~0.base, ~#pp~0.offset + 4 * g_~i~2, 4); 1262#L39 assume !(g_#t~mem11.base == g_~pointer.base && g_#t~mem11.offset == g_~pointer.offset);havoc g_#t~mem11.base, g_#t~mem11.offset; 1274#L38-2 g_#t~post10 := g_~i~2;g_~i~2 := 1 + g_#t~post10;havoc g_#t~post10; 1260#L38-3 [2021-10-28 23:50:10,126 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:50:10,126 INFO L85 PathProgramCache]: Analyzing trace with hash 1312987783, now seen corresponding path program 1 times [2021-10-28 23:50:10,127 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 23:50:10,127 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [309854575] [2021-10-28 23:50:10,127 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:50:10,127 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 23:50:10,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 23:50:10,163 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-28 23:50:10,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 23:50:10,204 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-28 23:50:10,205 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:50:10,205 INFO L85 PathProgramCache]: Analyzing trace with hash 100776, now seen corresponding path program 4 times [2021-10-28 23:50:10,206 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 23:50:10,206 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [823711837] [2021-10-28 23:50:10,206 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:50:10,206 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 23:50:10,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 23:50:10,210 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-28 23:50:10,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 23:50:10,214 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-28 23:50:10,215 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:50:10,215 INFO L85 PathProgramCache]: Analyzing trace with hash 951949666, now seen corresponding path program 1 times [2021-10-28 23:50:10,215 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 23:50:10,215 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [610511701] [2021-10-28 23:50:10,215 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:50:10,216 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 23:50:10,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:50:10,920 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2021-10-28 23:50:10,920 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 23:50:10,920 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [610511701] [2021-10-28 23:50:10,921 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [610511701] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-28 23:50:10,921 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1752741229] [2021-10-28 23:50:10,921 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:50:10,921 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-28 23:50:10,921 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79bdf90d-d18c-4543-ae94-8485702dc626/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:50:10,925 INFO L229 MonitoredProcess]: Starting monitored process 60 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79bdf90d-d18c-4543-ae94-8485702dc626/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-28 23:50:10,945 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79bdf90d-d18c-4543-ae94-8485702dc626/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (60)] Waiting until timeout for monitored process [2021-10-28 23:50:11,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:50:11,071 INFO L263 TraceCheckSpWp]: Trace formula consists of 224 conjuncts, 48 conjunts are in the unsatisfiable core [2021-10-28 23:50:11,073 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 23:50:11,090 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 138 treesize of output 134 [2021-10-28 23:50:11,423 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 7 [2021-10-28 23:50:11,429 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 7 [2021-10-28 23:50:11,771 INFO L354 Elim1Store]: treesize reduction 126, result has 13.1 percent of original size [2021-10-28 23:50:11,771 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 2 case distinctions, treesize of input 116 treesize of output 83 [2021-10-28 23:50:11,807 INFO L354 Elim1Store]: treesize reduction 126, result has 13.1 percent of original size [2021-10-28 23:50:11,807 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 2 case distinctions, treesize of input 69 treesize of output 36 [2021-10-28 23:50:11,955 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 35 treesize of output 27 [2021-10-28 23:50:11,964 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 16 [2021-10-28 23:50:12,022 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2021-10-28 23:50:12,022 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1752741229] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-28 23:50:12,022 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-28 23:50:12,022 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 11] total 17 [2021-10-28 23:50:12,023 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1900824418] [2021-10-28 23:50:12,079 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 23:50:12,079 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-10-28 23:50:12,079 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=53, Invalid=253, Unknown=0, NotChecked=0, Total=306 [2021-10-28 23:50:12,081 INFO L87 Difference]: Start difference. First operand 34 states and 41 transitions. cyclomatic complexity: 11 Second operand has 18 states, 18 states have (on average 1.6111111111111112) internal successors, (29), 17 states have internal predecessors, (29), 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) [2021-10-28 23:50:12,582 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 23:50:12,582 INFO L93 Difference]: Finished difference Result 39 states and 46 transitions. [2021-10-28 23:50:12,583 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-10-28 23:50:12,583 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 39 states and 46 transitions. [2021-10-28 23:50:12,584 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 10 [2021-10-28 23:50:12,584 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 39 states to 39 states and 46 transitions. [2021-10-28 23:50:12,584 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 29 [2021-10-28 23:50:12,585 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 29 [2021-10-28 23:50:12,585 INFO L73 IsDeterministic]: Start isDeterministic. Operand 39 states and 46 transitions. [2021-10-28 23:50:12,585 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2021-10-28 23:50:12,585 INFO L681 BuchiCegarLoop]: Abstraction has 39 states and 46 transitions. [2021-10-28 23:50:12,585 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 39 states and 46 transitions. [2021-10-28 23:50:12,587 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 39 to 36. [2021-10-28 23:50:12,588 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 36 states, 36 states have (on average 1.1944444444444444) internal successors, (43), 35 states have internal predecessors, (43), 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) [2021-10-28 23:50:12,588 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36 states to 36 states and 43 transitions. [2021-10-28 23:50:12,588 INFO L704 BuchiCegarLoop]: Abstraction has 36 states and 43 transitions. [2021-10-28 23:50:12,588 INFO L587 BuchiCegarLoop]: Abstraction has 36 states and 43 transitions. [2021-10-28 23:50:12,588 INFO L425 BuchiCegarLoop]: ======== Iteration 10============ [2021-10-28 23:50:12,589 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 36 states and 43 transitions. [2021-10-28 23:50:12,589 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 10 [2021-10-28 23:50:12,593 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-28 23:50:12,593 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-28 23:50:12,594 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 23:50:12,595 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1] [2021-10-28 23:50:12,596 INFO L791 eck$LassoCheckResult]: Stem: 1444#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(14);call #t~string6.base, #t~string6.offset := #Ultimate.allocOnStack(12);call ~#pp~0.base, ~#pp~0.offset := #Ultimate.allocOnStack(8);call write~init~$Pointer$(0, 0, ~#pp~0.base, ~#pp~0.offset, 4);call write~init~$Pointer$(0, 0, ~#pp~0.base, 4 + ~#pp~0.offset, 4);call ~#pstate~0.base, ~#pstate~0.offset := #Ultimate.allocOnStack(8);call write~init~int(0, ~#pstate~0.base, ~#pstate~0.offset, 4);call write~init~int(0, ~#pstate~0.base, 4 + ~#pstate~0.offset, 4);~counter~0 := 1; 1432#L-1 havoc main_#res;havoc main_#t~ret14.base, main_#t~ret14.offset, main_#t~ret15.base, main_#t~ret15.offset, main_~a~0.base, main_~a~0.offset, main_~b~0.base, main_~b~0.offset;havoc main_~a~0.base, main_~a~0.offset;havoc main_~b~0.base, main_~b~0.offset;havoc init_#t~post7, init_~i~0;havoc init_~i~0;init_~i~0 := 0; 1433#L19-3 assume !!(init_~i~0 < 2);call write~$Pointer$(0, 0, ~#pp~0.base, ~#pp~0.offset + 4 * init_~i~0, 4);call write~int(0, ~#pstate~0.base, ~#pstate~0.offset + 4 * init_~i~0, 4); 1426#L19-2 init_#t~post7 := init_~i~0;init_~i~0 := 1 + init_#t~post7;havoc init_#t~post7; 1427#L19-3 assume !!(init_~i~0 < 2);call write~$Pointer$(0, 0, ~#pp~0.base, ~#pp~0.offset + 4 * init_~i~0, 4);call write~int(0, ~#pstate~0.base, ~#pstate~0.offset + 4 * init_~i~0, 4); 1457#L19-2 init_#t~post7 := init_~i~0;init_~i~0 := 1 + init_#t~post7;havoc init_#t~post7; 1459#L19-3 assume !(init_~i~0 < 2); 1453#L17 malloc_#in~size := 4;havoc malloc_#res.base, malloc_#res.offset;havoc malloc_#t~post13, malloc_~size;malloc_~size := malloc_#in~size;malloc_#t~post13 := ~counter~0;~counter~0 := 1 + malloc_#t~post13;malloc_#res.base, malloc_#res.offset := 0, malloc_#t~post13;havoc malloc_#t~post13; 1437#L49 main_#t~ret14.base, main_#t~ret14.offset := malloc_#res.base, malloc_#res.offset;main_~a~0.base, main_~a~0.offset := main_#t~ret14.base, main_#t~ret14.offset;havoc main_#t~ret14.base, main_#t~ret14.offset;malloc_#in~size := 4;havoc malloc_#res.base, malloc_#res.offset;havoc malloc_#t~post13, malloc_~size;malloc_~size := malloc_#in~size;malloc_#t~post13 := ~counter~0;~counter~0 := 1 + malloc_#t~post13;malloc_#res.base, malloc_#res.offset := 0, malloc_#t~post13;havoc malloc_#t~post13; 1436#L49-1 main_#t~ret15.base, main_#t~ret15.offset := malloc_#res.base, malloc_#res.offset;main_~b~0.base, main_~b~0.offset := main_#t~ret15.base, main_#t~ret15.offset;havoc main_#t~ret15.base, main_#t~ret15.offset; 1430#L59 assume !((main_~a~0.base == 0 && main_~a~0.offset == 0) || (main_~b~0.base == 0 && main_~b~0.offset == 0));f_#in~pointer.base, f_#in~pointer.offset := main_~a~0.base, main_~a~0.offset;havoc f_#t~mem9.base, f_#t~mem9.offset, f_#t~post8, f_~pointer.base, f_~pointer.offset, f_~i~1;f_~pointer.base, f_~pointer.offset := f_#in~pointer.base, f_#in~pointer.offset;havoc f_~i~1;f_~i~1 := 0; 1431#L27-3 assume !!(f_~i~1 < 2);call f_#t~mem9.base, f_#t~mem9.offset := read~$Pointer$(~#pp~0.base, ~#pp~0.offset + 4 * f_~i~1, 4); 1455#L28 assume f_#t~mem9.base == 0 && f_#t~mem9.offset == 0;havoc f_#t~mem9.base, f_#t~mem9.offset;call write~$Pointer$(f_~pointer.base, f_~pointer.offset, ~#pp~0.base, ~#pp~0.offset + 4 * f_~i~1, 4);call write~int(1, ~#pstate~0.base, ~#pstate~0.offset + 4 * f_~i~1, 4); 1446#L25 f_#in~pointer.base, f_#in~pointer.offset := main_~b~0.base, main_~b~0.offset;havoc f_#t~mem9.base, f_#t~mem9.offset, f_#t~post8, f_~pointer.base, f_~pointer.offset, f_~i~1;f_~pointer.base, f_~pointer.offset := f_#in~pointer.base, f_#in~pointer.offset;havoc f_~i~1;f_~i~1 := 0; 1447#L27-7 assume !!(f_~i~1 < 2);call f_#t~mem9.base, f_#t~mem9.offset := read~$Pointer$(~#pp~0.base, ~#pp~0.offset + 4 * f_~i~1, 4); 1440#L28-1 assume !(f_#t~mem9.base == 0 && f_#t~mem9.offset == 0);havoc f_#t~mem9.base, f_#t~mem9.offset; 1441#L27-6 f_#t~post8 := f_~i~1;f_~i~1 := 1 + f_#t~post8;havoc f_#t~post8; 1445#L27-7 assume !!(f_~i~1 < 2);call f_#t~mem9.base, f_#t~mem9.offset := read~$Pointer$(~#pp~0.base, ~#pp~0.offset + 4 * f_~i~1, 4); 1438#L28-1 assume f_#t~mem9.base == 0 && f_#t~mem9.offset == 0;havoc f_#t~mem9.base, f_#t~mem9.offset;call write~$Pointer$(f_~pointer.base, f_~pointer.offset, ~#pp~0.base, ~#pp~0.offset + 4 * f_~i~1, 4);call write~int(1, ~#pstate~0.base, ~#pstate~0.offset + 4 * f_~i~1, 4); 1439#L25-1 g_#in~pointer.base, g_#in~pointer.offset := main_~a~0.base, main_~a~0.offset;havoc g_#t~mem11.base, g_#t~mem11.offset, g_#t~mem12, g_#t~post10, g_~pointer.base, g_~pointer.offset, g_~i~2;g_~pointer.base, g_~pointer.offset := g_#in~pointer.base, g_#in~pointer.offset;havoc g_~i~2;g_~i~2 := 0; 1428#L38-3 assume !!(g_~i~2 < 2);call g_#t~mem11.base, g_#t~mem11.offset := read~$Pointer$(~#pp~0.base, ~#pp~0.offset + 4 * g_~i~2, 4); 1429#L39 assume g_#t~mem11.base == g_~pointer.base && g_#t~mem11.offset == g_~pointer.offset;havoc g_#t~mem11.base, g_#t~mem11.offset;call g_#t~mem12 := read~int(~#pstate~0.base, ~#pstate~0.offset + 4 * g_~i~2, 4); 1443#L41 [2021-10-28 23:50:12,596 INFO L793 eck$LassoCheckResult]: Loop: 1443#L41 assume 1 == g_#t~mem12; 1452#L6 havoc g_#t~mem12;call write~int(2, ~#pstate~0.base, ~#pstate~0.offset + 4 * g_~i~2, 4); 1450#L38-2 g_#t~post10 := g_~i~2;g_~i~2 := 1 + g_#t~post10;havoc g_#t~post10; 1451#L38-3 assume !!(g_~i~2 < 2);call g_#t~mem11.base, g_#t~mem11.offset := read~$Pointer$(~#pp~0.base, ~#pp~0.offset + 4 * g_~i~2, 4); 1458#L39 assume g_#t~mem11.base == g_~pointer.base && g_#t~mem11.offset == g_~pointer.offset;havoc g_#t~mem11.base, g_#t~mem11.offset;call g_#t~mem12 := read~int(~#pstate~0.base, ~#pstate~0.offset + 4 * g_~i~2, 4); 1443#L41 [2021-10-28 23:50:12,596 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:50:12,596 INFO L85 PathProgramCache]: Analyzing trace with hash -939123286, now seen corresponding path program 1 times [2021-10-28 23:50:12,597 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 23:50:12,597 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [33391027] [2021-10-28 23:50:12,597 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:50:12,597 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 23:50:12,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 23:50:12,662 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-28 23:50:12,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 23:50:12,733 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-28 23:50:12,734 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:50:12,734 INFO L85 PathProgramCache]: Analyzing trace with hash 102329555, now seen corresponding path program 1 times [2021-10-28 23:50:12,734 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 23:50:12,735 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1958743913] [2021-10-28 23:50:12,735 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:50:12,735 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 23:50:12,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 23:50:12,742 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-28 23:50:12,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 23:50:12,748 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-28 23:50:12,750 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:50:12,750 INFO L85 PathProgramCache]: Analyzing trace with hash -289378102, now seen corresponding path program 1 times [2021-10-28 23:50:12,750 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 23:50:12,751 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [290139148] [2021-10-28 23:50:12,751 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:50:12,751 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 23:50:12,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:50:13,211 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2021-10-28 23:50:13,211 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 23:50:13,212 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [290139148] [2021-10-28 23:50:13,212 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [290139148] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-28 23:50:13,212 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [926704734] [2021-10-28 23:50:13,212 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:50:13,212 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-28 23:50:13,212 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79bdf90d-d18c-4543-ae94-8485702dc626/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:50:13,219 INFO L229 MonitoredProcess]: Starting monitored process 61 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79bdf90d-d18c-4543-ae94-8485702dc626/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-28 23:50:13,238 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79bdf90d-d18c-4543-ae94-8485702dc626/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (61)] Waiting until timeout for monitored process [2021-10-28 23:50:13,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:50:13,421 INFO L263 TraceCheckSpWp]: Trace formula consists of 261 conjuncts, 36 conjunts are in the unsatisfiable core [2021-10-28 23:50:13,422 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 23:50:13,440 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 202 treesize of output 198 [2021-10-28 23:50:13,725 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 39 treesize of output 9 [2021-10-28 23:50:13,873 INFO L354 Elim1Store]: treesize reduction 47, result has 16.1 percent of original size [2021-10-28 23:50:13,874 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 37 treesize of output 17 [2021-10-28 23:50:13,953 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 7 [2021-10-28 23:50:13,985 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2021-10-28 23:50:13,985 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [926704734] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-28 23:50:13,985 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-28 23:50:13,985 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11] total 16 [2021-10-28 23:50:13,986 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [247677377] [2021-10-28 23:50:14,245 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 23:50:14,245 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-10-28 23:50:14,246 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=268, Unknown=0, NotChecked=0, Total=306 [2021-10-28 23:50:14,246 INFO L87 Difference]: Start difference. First operand 36 states and 43 transitions. cyclomatic complexity: 11 Second operand has 18 states, 17 states have (on average 2.1176470588235294) internal successors, (36), 17 states have internal predecessors, (36), 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) [2021-10-28 23:50:15,018 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 23:50:15,019 INFO L93 Difference]: Finished difference Result 54 states and 63 transitions. [2021-10-28 23:50:15,030 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2021-10-28 23:50:15,030 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 54 states and 63 transitions. [2021-10-28 23:50:15,031 INFO L131 ngComponentsAnalysis]: Automaton has 4 accepting balls. 18 [2021-10-28 23:50:15,032 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 54 states to 54 states and 63 transitions. [2021-10-28 23:50:15,032 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 44 [2021-10-28 23:50:15,032 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 44 [2021-10-28 23:50:15,033 INFO L73 IsDeterministic]: Start isDeterministic. Operand 54 states and 63 transitions. [2021-10-28 23:50:15,033 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2021-10-28 23:50:15,033 INFO L681 BuchiCegarLoop]: Abstraction has 54 states and 63 transitions. [2021-10-28 23:50:15,033 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 54 states and 63 transitions. [2021-10-28 23:50:15,036 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 54 to 46. [2021-10-28 23:50:15,037 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 46 states, 46 states have (on average 1.173913043478261) internal successors, (54), 45 states have internal predecessors, (54), 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) [2021-10-28 23:50:15,037 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46 states to 46 states and 54 transitions. [2021-10-28 23:50:15,037 INFO L704 BuchiCegarLoop]: Abstraction has 46 states and 54 transitions. [2021-10-28 23:50:15,038 INFO L587 BuchiCegarLoop]: Abstraction has 46 states and 54 transitions. [2021-10-28 23:50:15,038 INFO L425 BuchiCegarLoop]: ======== Iteration 11============ [2021-10-28 23:50:15,038 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 46 states and 54 transitions. [2021-10-28 23:50:15,038 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 13 [2021-10-28 23:50:15,039 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-28 23:50:15,039 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-28 23:50:15,040 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 23:50:15,040 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1] [2021-10-28 23:50:15,040 INFO L791 eck$LassoCheckResult]: Stem: 1657#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(14);call #t~string6.base, #t~string6.offset := #Ultimate.allocOnStack(12);call ~#pp~0.base, ~#pp~0.offset := #Ultimate.allocOnStack(8);call write~init~$Pointer$(0, 0, ~#pp~0.base, ~#pp~0.offset, 4);call write~init~$Pointer$(0, 0, ~#pp~0.base, 4 + ~#pp~0.offset, 4);call ~#pstate~0.base, ~#pstate~0.offset := #Ultimate.allocOnStack(8);call write~init~int(0, ~#pstate~0.base, ~#pstate~0.offset, 4);call write~init~int(0, ~#pstate~0.base, 4 + ~#pstate~0.offset, 4);~counter~0 := 1; 1645#L-1 havoc main_#res;havoc main_#t~ret14.base, main_#t~ret14.offset, main_#t~ret15.base, main_#t~ret15.offset, main_~a~0.base, main_~a~0.offset, main_~b~0.base, main_~b~0.offset;havoc main_~a~0.base, main_~a~0.offset;havoc main_~b~0.base, main_~b~0.offset;havoc init_#t~post7, init_~i~0;havoc init_~i~0;init_~i~0 := 0; 1646#L19-3 assume !!(init_~i~0 < 2);call write~$Pointer$(0, 0, ~#pp~0.base, ~#pp~0.offset + 4 * init_~i~0, 4);call write~int(0, ~#pstate~0.base, ~#pstate~0.offset + 4 * init_~i~0, 4); 1639#L19-2 init_#t~post7 := init_~i~0;init_~i~0 := 1 + init_#t~post7;havoc init_#t~post7; 1640#L19-3 assume !!(init_~i~0 < 2);call write~$Pointer$(0, 0, ~#pp~0.base, ~#pp~0.offset + 4 * init_~i~0, 4);call write~int(0, ~#pstate~0.base, ~#pstate~0.offset + 4 * init_~i~0, 4); 1674#L19-2 init_#t~post7 := init_~i~0;init_~i~0 := 1 + init_#t~post7;havoc init_#t~post7; 1675#L19-3 assume !(init_~i~0 < 2); 1666#L17 malloc_#in~size := 4;havoc malloc_#res.base, malloc_#res.offset;havoc malloc_#t~post13, malloc_~size;malloc_~size := malloc_#in~size;malloc_#t~post13 := ~counter~0;~counter~0 := 1 + malloc_#t~post13;malloc_#res.base, malloc_#res.offset := 0, malloc_#t~post13;havoc malloc_#t~post13; 1650#L49 main_#t~ret14.base, main_#t~ret14.offset := malloc_#res.base, malloc_#res.offset;main_~a~0.base, main_~a~0.offset := main_#t~ret14.base, main_#t~ret14.offset;havoc main_#t~ret14.base, main_#t~ret14.offset;malloc_#in~size := 4;havoc malloc_#res.base, malloc_#res.offset;havoc malloc_#t~post13, malloc_~size;malloc_~size := malloc_#in~size;malloc_#t~post13 := ~counter~0;~counter~0 := 1 + malloc_#t~post13;malloc_#res.base, malloc_#res.offset := 0, malloc_#t~post13;havoc malloc_#t~post13; 1647#L49-1 main_#t~ret15.base, main_#t~ret15.offset := malloc_#res.base, malloc_#res.offset;main_~b~0.base, main_~b~0.offset := main_#t~ret15.base, main_#t~ret15.offset;havoc main_#t~ret15.base, main_#t~ret15.offset; 1641#L59 assume !((main_~a~0.base == 0 && main_~a~0.offset == 0) || (main_~b~0.base == 0 && main_~b~0.offset == 0));f_#in~pointer.base, f_#in~pointer.offset := main_~a~0.base, main_~a~0.offset;havoc f_#t~mem9.base, f_#t~mem9.offset, f_#t~post8, f_~pointer.base, f_~pointer.offset, f_~i~1;f_~pointer.base, f_~pointer.offset := f_#in~pointer.base, f_#in~pointer.offset;havoc f_~i~1;f_~i~1 := 0; 1642#L27-3 assume !!(f_~i~1 < 2);call f_#t~mem9.base, f_#t~mem9.offset := read~$Pointer$(~#pp~0.base, ~#pp~0.offset + 4 * f_~i~1, 4); 1671#L28 assume f_#t~mem9.base == 0 && f_#t~mem9.offset == 0;havoc f_#t~mem9.base, f_#t~mem9.offset;call write~$Pointer$(f_~pointer.base, f_~pointer.offset, ~#pp~0.base, ~#pp~0.offset + 4 * f_~i~1, 4);call write~int(1, ~#pstate~0.base, ~#pstate~0.offset + 4 * f_~i~1, 4); 1660#L25 f_#in~pointer.base, f_#in~pointer.offset := main_~b~0.base, main_~b~0.offset;havoc f_#t~mem9.base, f_#t~mem9.offset, f_#t~post8, f_~pointer.base, f_~pointer.offset, f_~i~1;f_~pointer.base, f_~pointer.offset := f_#in~pointer.base, f_#in~pointer.offset;havoc f_~i~1;f_~i~1 := 0; 1661#L27-7 assume !!(f_~i~1 < 2);call f_#t~mem9.base, f_#t~mem9.offset := read~$Pointer$(~#pp~0.base, ~#pp~0.offset + 4 * f_~i~1, 4); 1653#L28-1 assume !(f_#t~mem9.base == 0 && f_#t~mem9.offset == 0);havoc f_#t~mem9.base, f_#t~mem9.offset; 1654#L27-6 f_#t~post8 := f_~i~1;f_~i~1 := 1 + f_#t~post8;havoc f_#t~post8; 1672#L27-7 assume !!(f_~i~1 < 2);call f_#t~mem9.base, f_#t~mem9.offset := read~$Pointer$(~#pp~0.base, ~#pp~0.offset + 4 * f_~i~1, 4); 1673#L28-1 assume !(f_#t~mem9.base == 0 && f_#t~mem9.offset == 0);havoc f_#t~mem9.base, f_#t~mem9.offset; 1658#L27-6 f_#t~post8 := f_~i~1;f_~i~1 := 1 + f_#t~post8;havoc f_#t~post8; 1659#L27-7 assume !(f_~i~1 < 2); 1676#L25-1 g_#in~pointer.base, g_#in~pointer.offset := main_~a~0.base, main_~a~0.offset;havoc g_#t~mem11.base, g_#t~mem11.offset, g_#t~mem12, g_#t~post10, g_~pointer.base, g_~pointer.offset, g_~i~2;g_~pointer.base, g_~pointer.offset := g_#in~pointer.base, g_#in~pointer.offset;havoc g_~i~2;g_~i~2 := 0; 1684#L38-3 assume !!(g_~i~2 < 2);call g_#t~mem11.base, g_#t~mem11.offset := read~$Pointer$(~#pp~0.base, ~#pp~0.offset + 4 * g_~i~2, 4); 1683#L39 assume g_#t~mem11.base == g_~pointer.base && g_#t~mem11.offset == g_~pointer.offset;havoc g_#t~mem11.base, g_#t~mem11.offset;call g_#t~mem12 := read~int(~#pstate~0.base, ~#pstate~0.offset + 4 * g_~i~2, 4); 1667#L41 [2021-10-28 23:50:15,040 INFO L793 eck$LassoCheckResult]: Loop: 1667#L41 assume 1 == g_#t~mem12; 1668#L6 havoc g_#t~mem12;call write~int(2, ~#pstate~0.base, ~#pstate~0.offset + 4 * g_~i~2, 4); 1670#L38-2 g_#t~post10 := g_~i~2;g_~i~2 := 1 + g_#t~post10;havoc g_#t~post10; 1678#L38-3 assume !!(g_~i~2 < 2);call g_#t~mem11.base, g_#t~mem11.offset := read~$Pointer$(~#pp~0.base, ~#pp~0.offset + 4 * g_~i~2, 4); 1681#L39 assume g_#t~mem11.base == g_~pointer.base && g_#t~mem11.offset == g_~pointer.offset;havoc g_#t~mem11.base, g_#t~mem11.offset;call g_#t~mem12 := read~int(~#pstate~0.base, ~#pstate~0.offset + 4 * g_~i~2, 4); 1667#L41 [2021-10-28 23:50:15,041 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:50:15,041 INFO L85 PathProgramCache]: Analyzing trace with hash -501415375, now seen corresponding path program 1 times [2021-10-28 23:50:15,041 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 23:50:15,041 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [633119944] [2021-10-28 23:50:15,042 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:50:15,042 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 23:50:15,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:50:15,342 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 3 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 23:50:15,342 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 23:50:15,342 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [633119944] [2021-10-28 23:50:15,342 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [633119944] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-28 23:50:15,342 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [63417280] [2021-10-28 23:50:15,343 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:50:15,343 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-28 23:50:15,343 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79bdf90d-d18c-4543-ae94-8485702dc626/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:50:15,349 INFO L229 MonitoredProcess]: Starting monitored process 62 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79bdf90d-d18c-4543-ae94-8485702dc626/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-28 23:50:15,365 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79bdf90d-d18c-4543-ae94-8485702dc626/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (62)] Waiting until timeout for monitored process [2021-10-28 23:50:15,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:50:15,564 INFO L263 TraceCheckSpWp]: Trace formula consists of 219 conjuncts, 20 conjunts are in the unsatisfiable core [2021-10-28 23:50:15,566 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 23:50:15,576 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 103 treesize of output 101 [2021-10-28 23:50:15,659 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 39 treesize of output 9 [2021-10-28 23:50:15,664 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 39 treesize of output 9 [2021-10-28 23:50:15,838 INFO L354 Elim1Store]: treesize reduction 140, result has 13.0 percent of original size [2021-10-28 23:50:15,839 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 2 case distinctions, treesize of input 120 treesize of output 87 [2021-10-28 23:50:15,869 INFO L354 Elim1Store]: treesize reduction 140, result has 13.0 percent of original size [2021-10-28 23:50:15,870 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 2 case distinctions, treesize of input 73 treesize of output 40 [2021-10-28 23:50:15,977 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 37 treesize of output 25 [2021-10-28 23:50:15,980 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 10 [2021-10-28 23:50:16,010 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 3 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 23:50:16,011 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [63417280] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-28 23:50:16,011 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-28 23:50:16,011 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 10] total 15 [2021-10-28 23:50:16,012 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [871267187] [2021-10-28 23:50:16,012 INFO L796 eck$LassoCheckResult]: stem already infeasible [2021-10-28 23:50:16,012 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:50:16,013 INFO L85 PathProgramCache]: Analyzing trace with hash 102329555, now seen corresponding path program 2 times [2021-10-28 23:50:16,013 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 23:50:16,013 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [985624963] [2021-10-28 23:50:16,013 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:50:16,013 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 23:50:16,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 23:50:16,038 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-28 23:50:16,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 23:50:16,043 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-28 23:50:16,296 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 23:50:16,297 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2021-10-28 23:50:16,297 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=52, Invalid=188, Unknown=0, NotChecked=0, Total=240 [2021-10-28 23:50:16,297 INFO L87 Difference]: Start difference. First operand 46 states and 54 transitions. cyclomatic complexity: 13 Second operand has 16 states, 16 states have (on average 2.25) internal successors, (36), 15 states have internal predecessors, (36), 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) [2021-10-28 23:50:16,604 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 23:50:16,604 INFO L93 Difference]: Finished difference Result 36 states and 39 transitions. [2021-10-28 23:50:16,605 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-10-28 23:50:16,605 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 36 states and 39 transitions. [2021-10-28 23:50:16,605 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 8 [2021-10-28 23:50:16,606 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 36 states to 35 states and 38 transitions. [2021-10-28 23:50:16,607 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 28 [2021-10-28 23:50:16,607 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 31 [2021-10-28 23:50:16,607 INFO L73 IsDeterministic]: Start isDeterministic. Operand 35 states and 38 transitions. [2021-10-28 23:50:16,607 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-28 23:50:16,608 INFO L681 BuchiCegarLoop]: Abstraction has 35 states and 38 transitions. [2021-10-28 23:50:16,608 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35 states and 38 transitions. [2021-10-28 23:50:16,612 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35 to 35. [2021-10-28 23:50:16,612 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 35 states, 35 states have (on average 1.0857142857142856) internal successors, (38), 34 states have internal predecessors, (38), 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) [2021-10-28 23:50:16,615 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35 states to 35 states and 38 transitions. [2021-10-28 23:50:16,615 INFO L704 BuchiCegarLoop]: Abstraction has 35 states and 38 transitions. [2021-10-28 23:50:16,616 INFO L587 BuchiCegarLoop]: Abstraction has 35 states and 38 transitions. [2021-10-28 23:50:16,616 INFO L425 BuchiCegarLoop]: ======== Iteration 12============ [2021-10-28 23:50:16,616 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 35 states and 38 transitions. [2021-10-28 23:50:16,616 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 8 [2021-10-28 23:50:16,616 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-28 23:50:16,616 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-28 23:50:16,617 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 23:50:16,617 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2021-10-28 23:50:16,617 INFO L791 eck$LassoCheckResult]: Stem: 1837#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string4.base, #t~string4.offset := #Ultimate.allocOnStack(2);call write~init~int(48, #t~string4.base, #t~string4.offset, 1);call write~init~int(0, #t~string4.base, 1 + #t~string4.offset, 1);call #t~string5.base, #t~string5.offset := #Ultimate.allocOnStack(14);call #t~string6.base, #t~string6.offset := #Ultimate.allocOnStack(12);call ~#pp~0.base, ~#pp~0.offset := #Ultimate.allocOnStack(8);call write~init~$Pointer$(0, 0, ~#pp~0.base, ~#pp~0.offset, 4);call write~init~$Pointer$(0, 0, ~#pp~0.base, 4 + ~#pp~0.offset, 4);call ~#pstate~0.base, ~#pstate~0.offset := #Ultimate.allocOnStack(8);call write~init~int(0, ~#pstate~0.base, ~#pstate~0.offset, 4);call write~init~int(0, ~#pstate~0.base, 4 + ~#pstate~0.offset, 4);~counter~0 := 1; 1827#L-1 havoc main_#res;havoc main_#t~ret14.base, main_#t~ret14.offset, main_#t~ret15.base, main_#t~ret15.offset, main_~a~0.base, main_~a~0.offset, main_~b~0.base, main_~b~0.offset;havoc main_~a~0.base, main_~a~0.offset;havoc main_~b~0.base, main_~b~0.offset;havoc init_#t~post7, init_~i~0;havoc init_~i~0;init_~i~0 := 0; 1828#L19-3 assume !!(init_~i~0 < 2);call write~$Pointer$(0, 0, ~#pp~0.base, ~#pp~0.offset + 4 * init_~i~0, 4);call write~int(0, ~#pstate~0.base, ~#pstate~0.offset + 4 * init_~i~0, 4); 1821#L19-2 init_#t~post7 := init_~i~0;init_~i~0 := 1 + init_#t~post7;havoc init_#t~post7; 1822#L19-3 assume !!(init_~i~0 < 2);call write~$Pointer$(0, 0, ~#pp~0.base, ~#pp~0.offset + 4 * init_~i~0, 4);call write~int(0, ~#pstate~0.base, ~#pstate~0.offset + 4 * init_~i~0, 4); 1851#L19-2 init_#t~post7 := init_~i~0;init_~i~0 := 1 + init_#t~post7;havoc init_#t~post7; 1853#L19-3 assume !(init_~i~0 < 2); 1848#L17 malloc_#in~size := 4;havoc malloc_#res.base, malloc_#res.offset;havoc malloc_#t~post13, malloc_~size;malloc_~size := malloc_#in~size;malloc_#t~post13 := ~counter~0;~counter~0 := 1 + malloc_#t~post13;malloc_#res.base, malloc_#res.offset := 0, malloc_#t~post13;havoc malloc_#t~post13; 1834#L49 main_#t~ret14.base, main_#t~ret14.offset := malloc_#res.base, malloc_#res.offset;main_~a~0.base, main_~a~0.offset := main_#t~ret14.base, main_#t~ret14.offset;havoc main_#t~ret14.base, main_#t~ret14.offset;malloc_#in~size := 4;havoc malloc_#res.base, malloc_#res.offset;havoc malloc_#t~post13, malloc_~size;malloc_~size := malloc_#in~size;malloc_#t~post13 := ~counter~0;~counter~0 := 1 + malloc_#t~post13;malloc_#res.base, malloc_#res.offset := 0, malloc_#t~post13;havoc malloc_#t~post13; 1831#L49-1 main_#t~ret15.base, main_#t~ret15.offset := malloc_#res.base, malloc_#res.offset;main_~b~0.base, main_~b~0.offset := main_#t~ret15.base, main_#t~ret15.offset;havoc main_#t~ret15.base, main_#t~ret15.offset; 1825#L59 assume !((main_~a~0.base == 0 && main_~a~0.offset == 0) || (main_~b~0.base == 0 && main_~b~0.offset == 0));f_#in~pointer.base, f_#in~pointer.offset := main_~a~0.base, main_~a~0.offset;havoc f_#t~mem9.base, f_#t~mem9.offset, f_#t~post8, f_~pointer.base, f_~pointer.offset, f_~i~1;f_~pointer.base, f_~pointer.offset := f_#in~pointer.base, f_#in~pointer.offset;havoc f_~i~1;f_~i~1 := 0; 1826#L27-3 assume !!(f_~i~1 < 2);call f_#t~mem9.base, f_#t~mem9.offset := read~$Pointer$(~#pp~0.base, ~#pp~0.offset + 4 * f_~i~1, 4); 1850#L28 assume f_#t~mem9.base == 0 && f_#t~mem9.offset == 0;havoc f_#t~mem9.base, f_#t~mem9.offset;call write~$Pointer$(f_~pointer.base, f_~pointer.offset, ~#pp~0.base, ~#pp~0.offset + 4 * f_~i~1, 4);call write~int(1, ~#pstate~0.base, ~#pstate~0.offset + 4 * f_~i~1, 4); 1839#L25 f_#in~pointer.base, f_#in~pointer.offset := main_~b~0.base, main_~b~0.offset;havoc f_#t~mem9.base, f_#t~mem9.offset, f_#t~post8, f_~pointer.base, f_~pointer.offset, f_~i~1;f_~pointer.base, f_~pointer.offset := f_#in~pointer.base, f_#in~pointer.offset;havoc f_~i~1;f_~i~1 := 0; 1840#L27-7 assume !!(f_~i~1 < 2);call f_#t~mem9.base, f_#t~mem9.offset := read~$Pointer$(~#pp~0.base, ~#pp~0.offset + 4 * f_~i~1, 4); 1832#L28-1 assume !(f_#t~mem9.base == 0 && f_#t~mem9.offset == 0);havoc f_#t~mem9.base, f_#t~mem9.offset; 1833#L27-6 f_#t~post8 := f_~i~1;f_~i~1 := 1 + f_#t~post8;havoc f_#t~post8; 1838#L27-7 assume !!(f_~i~1 < 2);call f_#t~mem9.base, f_#t~mem9.offset := read~$Pointer$(~#pp~0.base, ~#pp~0.offset + 4 * f_~i~1, 4); 1855#L28-1 assume f_#t~mem9.base == 0 && f_#t~mem9.offset == 0;havoc f_#t~mem9.base, f_#t~mem9.offset;call write~$Pointer$(f_~pointer.base, f_~pointer.offset, ~#pp~0.base, ~#pp~0.offset + 4 * f_~i~1, 4);call write~int(1, ~#pstate~0.base, ~#pstate~0.offset + 4 * f_~i~1, 4); 1841#L25-1 g_#in~pointer.base, g_#in~pointer.offset := main_~a~0.base, main_~a~0.offset;havoc g_#t~mem11.base, g_#t~mem11.offset, g_#t~mem12, g_#t~post10, g_~pointer.base, g_~pointer.offset, g_~i~2;g_~pointer.base, g_~pointer.offset := g_#in~pointer.base, g_#in~pointer.offset;havoc g_~i~2;g_~i~2 := 0; 1842#L38-3 assume !!(g_~i~2 < 2);call g_#t~mem11.base, g_#t~mem11.offset := read~$Pointer$(~#pp~0.base, ~#pp~0.offset + 4 * g_~i~2, 4); 1852#L39 assume g_#t~mem11.base == g_~pointer.base && g_#t~mem11.offset == g_~pointer.offset;havoc g_#t~mem11.base, g_#t~mem11.offset;call g_#t~mem12 := read~int(~#pstate~0.base, ~#pstate~0.offset + 4 * g_~i~2, 4); 1846#L41 assume 1 == g_#t~mem12; 1847#L6 havoc g_#t~mem12;call write~int(2, ~#pstate~0.base, ~#pstate~0.offset + 4 * g_~i~2, 4); 1845#L38-2 g_#t~post10 := g_~i~2;g_~i~2 := 1 + g_#t~post10;havoc g_#t~post10; 1823#L38-3 assume !!(g_~i~2 < 2);call g_#t~mem11.base, g_#t~mem11.offset := read~$Pointer$(~#pp~0.base, ~#pp~0.offset + 4 * g_~i~2, 4); 1824#L39 [2021-10-28 23:50:16,618 INFO L793 eck$LassoCheckResult]: Loop: 1824#L39 assume !(g_#t~mem11.base == g_~pointer.base && g_#t~mem11.offset == g_~pointer.offset);havoc g_#t~mem11.base, g_#t~mem11.offset; 1836#L38-2 g_#t~post10 := g_~i~2;g_~i~2 := 1 + g_#t~post10;havoc g_#t~post10; 1854#L38-3 assume !!(g_~i~2 < 2);call g_#t~mem11.base, g_#t~mem11.offset := read~$Pointer$(~#pp~0.base, ~#pp~0.offset + 4 * g_~i~2, 4); 1824#L39 [2021-10-28 23:50:16,618 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:50:16,618 INFO L85 PathProgramCache]: Analyzing trace with hash -147882112, now seen corresponding path program 2 times [2021-10-28 23:50:16,619 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 23:50:16,619 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1580841524] [2021-10-28 23:50:16,619 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:50:16,619 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 23:50:16,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 23:50:16,699 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-28 23:50:16,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 23:50:16,762 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-28 23:50:16,762 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:50:16,762 INFO L85 PathProgramCache]: Analyzing trace with hash 115236, now seen corresponding path program 5 times [2021-10-28 23:50:16,763 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 23:50:16,763 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2004242981] [2021-10-28 23:50:16,763 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:50:16,763 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 23:50:16,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 23:50:16,768 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-28 23:50:16,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 23:50:16,771 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-28 23:50:16,772 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:50:16,772 INFO L85 PathProgramCache]: Analyzing trace with hash 1080532549, now seen corresponding path program 1 times [2021-10-28 23:50:16,772 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 23:50:16,772 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1272118606] [2021-10-28 23:50:16,773 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:50:16,773 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 23:50:16,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:50:16,819 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 1 proven. 4 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2021-10-28 23:50:16,820 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 23:50:16,820 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1272118606] [2021-10-28 23:50:16,820 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1272118606] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-28 23:50:16,820 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [820176690] [2021-10-28 23:50:16,821 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:50:16,821 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-28 23:50:16,821 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79bdf90d-d18c-4543-ae94-8485702dc626/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:50:16,829 INFO L229 MonitoredProcess]: Starting monitored process 63 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79bdf90d-d18c-4543-ae94-8485702dc626/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-28 23:50:16,845 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79bdf90d-d18c-4543-ae94-8485702dc626/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (63)] Waiting until timeout for monitored process [2021-10-28 23:50:17,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:50:17,117 INFO L263 TraceCheckSpWp]: Trace formula consists of 263 conjuncts, 4 conjunts are in the unsatisfiable core [2021-10-28 23:50:17,118 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 23:50:17,213 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2021-10-28 23:50:17,213 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [820176690] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-28 23:50:17,214 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2021-10-28 23:50:17,214 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [4] total 5 [2021-10-28 23:50:17,214 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1621363299] [2021-10-28 23:50:17,279 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 23:50:17,279 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-10-28 23:50:17,279 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2021-10-28 23:50:17,280 INFO L87 Difference]: Start difference. First operand 35 states and 38 transitions. cyclomatic complexity: 6 Second operand has 5 states, 4 states have (on average 6.5) internal successors, (26), 5 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) [2021-10-28 23:50:17,316 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 23:50:17,316 INFO L93 Difference]: Finished difference Result 41 states and 43 transitions. [2021-10-28 23:50:17,316 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-10-28 23:50:17,316 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 41 states and 43 transitions. [2021-10-28 23:50:17,317 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2021-10-28 23:50:17,317 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 41 states to 0 states and 0 transitions. [2021-10-28 23:50:17,317 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2021-10-28 23:50:17,318 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2021-10-28 23:50:17,318 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2021-10-28 23:50:17,318 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-28 23:50:17,318 INFO L681 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-10-28 23:50:17,318 INFO L704 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-10-28 23:50:17,318 INFO L587 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-10-28 23:50:17,318 INFO L425 BuchiCegarLoop]: ======== Iteration 13============ [2021-10-28 23:50:17,318 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2021-10-28 23:50:17,318 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2021-10-28 23:50:17,318 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2021-10-28 23:50:17,324 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 28.10 11:50:17 BoogieIcfgContainer [2021-10-28 23:50:17,324 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2021-10-28 23:50:17,325 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-28 23:50:17,325 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-28 23:50:17,325 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-28 23:50:17,326 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.10 11:49:14" (3/4) ... [2021-10-28 23:50:17,329 INFO L140 WitnessPrinter]: No result that supports witness generation found [2021-10-28 23:50:17,329 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-28 23:50:17,330 INFO L168 Benchmark]: Toolchain (without parser) took 64311.87 ms. Allocated memory was 86.0 MB in the beginning and 134.2 MB in the end (delta: 48.2 MB). Free memory was 50.7 MB in the beginning and 51.2 MB in the end (delta: -507.9 kB). Peak memory consumption was 47.2 MB. Max. memory is 16.1 GB. [2021-10-28 23:50:17,331 INFO L168 Benchmark]: CDTParser took 1.14 ms. Allocated memory is still 86.0 MB. Free memory was 57.5 MB in the beginning and 57.5 MB in the end (delta: 21.3 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-28 23:50:17,331 INFO L168 Benchmark]: CACSL2BoogieTranslator took 332.38 ms. Allocated memory was 86.0 MB in the beginning and 111.1 MB in the end (delta: 25.2 MB). Free memory was 50.4 MB in the beginning and 86.0 MB in the end (delta: -35.7 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2021-10-28 23:50:17,331 INFO L168 Benchmark]: Boogie Procedure Inliner took 52.68 ms. Allocated memory is still 111.1 MB. Free memory was 86.0 MB in the beginning and 84.6 MB in the end (delta: 1.5 MB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-28 23:50:17,332 INFO L168 Benchmark]: Boogie Preprocessor took 37.08 ms. Allocated memory is still 111.1 MB. Free memory was 84.6 MB in the beginning and 82.7 MB in the end (delta: 1.9 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-28 23:50:17,332 INFO L168 Benchmark]: RCFGBuilder took 666.17 ms. Allocated memory is still 111.1 MB. Free memory was 82.7 MB in the beginning and 67.9 MB in the end (delta: 14.8 MB). Peak memory consumption was 14.7 MB. Max. memory is 16.1 GB. [2021-10-28 23:50:17,333 INFO L168 Benchmark]: BuchiAutomizer took 63209.80 ms. Allocated memory was 111.1 MB in the beginning and 134.2 MB in the end (delta: 23.1 MB). Free memory was 67.8 MB in the beginning and 51.8 MB in the end (delta: 15.9 MB). Peak memory consumption was 41.8 MB. Max. memory is 16.1 GB. [2021-10-28 23:50:17,333 INFO L168 Benchmark]: Witness Printer took 4.48 ms. Allocated memory is still 134.2 MB. Free memory was 51.8 MB in the beginning and 51.2 MB in the end (delta: 681.2 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-28 23:50:17,336 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 1.14 ms. Allocated memory is still 86.0 MB. Free memory was 57.5 MB in the beginning and 57.5 MB in the end (delta: 21.3 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 332.38 ms. Allocated memory was 86.0 MB in the beginning and 111.1 MB in the end (delta: 25.2 MB). Free memory was 50.4 MB in the beginning and 86.0 MB in the end (delta: -35.7 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 52.68 ms. Allocated memory is still 111.1 MB. Free memory was 86.0 MB in the beginning and 84.6 MB in the end (delta: 1.5 MB). There was no memory consumed. Max. memory is 16.1 GB. * Boogie Preprocessor took 37.08 ms. Allocated memory is still 111.1 MB. Free memory was 84.6 MB in the beginning and 82.7 MB in the end (delta: 1.9 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 666.17 ms. Allocated memory is still 111.1 MB. Free memory was 82.7 MB in the beginning and 67.9 MB in the end (delta: 14.8 MB). Peak memory consumption was 14.7 MB. Max. memory is 16.1 GB. * BuchiAutomizer took 63209.80 ms. Allocated memory was 111.1 MB in the beginning and 134.2 MB in the end (delta: 23.1 MB). Free memory was 67.8 MB in the beginning and 51.8 MB in the end (delta: 15.9 MB). Peak memory consumption was 41.8 MB. Max. memory is 16.1 GB. * Witness Printer took 4.48 ms. Allocated memory is still 134.2 MB. Free memory was 51.8 MB in the beginning and 51.2 MB in the end (delta: 681.2 kB). 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 12 terminating modules (10 trivial, 2 deterministic, 0 nondeterministic). One deterministic module has affine ranking function 3 * unknown-#length-unknown[pp] + -8 * i and consists of 5 locations. One deterministic module has affine ranking function 3 + -2 * i and consists of 4 locations. 10 modules have a trivial ranking function, the largest among these consists of 18 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 63.1s and 13 iterations. TraceHistogramMax:2. Analysis of lassos took 59.6s. Construction of modules took 1.0s. Büchi inclusion checks took 2.1s. Highest rank in rank-based complementation 3. Minimization of det autom 6. Minimization of nondet autom 6. Automata minimization 0.0s AutomataMinimizationTime, 11 MinimizatonAttempts, 65 StatesRemovedByMinimization, 7 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 46 states and ocurred in iteration 10. Nontrivial modules had stage [2, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 295 SDtfs, 479 SDslu, 759 SDs, 0 SdLazy, 1071 SolverSat, 149 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 1.0s Time LassoAnalysisResults: nont0 unkn0 SFLI0 SFLT0 conc4 concLT0 SILN0 SILU6 SILI0 SILT0 lasso2 LassoPreprocessingBenchmarks: Lassos: inital1582 mio100 ax100 hnf100 lsp97 ukn23 mio100 lsp35 div100 bol100 ite100 ukn100 eq178 hnf92 smp100 dnf107 smp100 tf100 neg98 sie103 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 56ms 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! [2021-10-28 23:50:17,387 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79bdf90d-d18c-4543-ae94-8485702dc626/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (63)] Forceful destruction successful, exit code 0 [2021-10-28 23:50:17,590 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79bdf90d-d18c-4543-ae94-8485702dc626/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (62)] Ended with exit code 0 [2021-10-28 23:50:17,791 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79bdf90d-d18c-4543-ae94-8485702dc626/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (61)] Forceful destruction successful, exit code 0 [2021-10-28 23:50:17,989 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79bdf90d-d18c-4543-ae94-8485702dc626/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (60)] Ended with exit code 0 [2021-10-28 23:50:18,189 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79bdf90d-d18c-4543-ae94-8485702dc626/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (59)] Ended with exit code 0 [2021-10-28 23:50:18,389 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79bdf90d-d18c-4543-ae94-8485702dc626/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (36)] Forceful destruction successful, exit code 0 [2021-10-28 23:50:18,590 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79bdf90d-d18c-4543-ae94-8485702dc626/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (35)] Ended with exit code 0 [2021-10-28 23:50:18,793 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79bdf90d-d18c-4543-ae94-8485702dc626/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...