./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/termination-15/array15_alloca.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 4e77c044 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbb2d23d-090d-4c8d-95d0-199a934d8f42/bin/uautomizer-WNIpwEf4Nt/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbb2d23d-090d-4c8d-95d0-199a934d8f42/bin/uautomizer-WNIpwEf4Nt/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbb2d23d-090d-4c8d-95d0-199a934d8f42/bin/uautomizer-WNIpwEf4Nt/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbb2d23d-090d-4c8d-95d0-199a934d8f42/bin/uautomizer-WNIpwEf4Nt/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/termination-15/array15_alloca.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbb2d23d-090d-4c8d-95d0-199a934d8f42/bin/uautomizer-WNIpwEf4Nt/config/svcomp-Termination-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbb2d23d-090d-4c8d-95d0-199a934d8f42/bin/uautomizer-WNIpwEf4Nt --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(F end) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 73a986a1d92244ec74fbbfc5c06684e9b6828bb2 ....................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE(TERM) --- Real Ultimate output --- This is Ultimate 0.2.1-dev-4e77c04 [2021-10-13 01:10:34,320 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-13 01:10:34,323 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-13 01:10:34,383 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-13 01:10:34,384 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-13 01:10:34,389 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-13 01:10:34,391 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-13 01:10:34,396 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-13 01:10:34,398 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-13 01:10:34,406 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-13 01:10:34,407 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-13 01:10:34,409 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-13 01:10:34,410 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-13 01:10:34,412 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-13 01:10:34,415 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-13 01:10:34,422 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-13 01:10:34,426 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-13 01:10:34,428 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-13 01:10:34,430 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-13 01:10:34,435 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-13 01:10:34,441 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-13 01:10:34,443 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-13 01:10:34,446 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-13 01:10:34,447 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-13 01:10:34,454 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-13 01:10:34,455 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-13 01:10:34,455 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-13 01:10:34,458 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-13 01:10:34,459 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-13 01:10:34,460 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-13 01:10:34,461 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-13 01:10:34,462 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-13 01:10:34,464 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-13 01:10:34,466 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-13 01:10:34,468 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-13 01:10:34,468 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-13 01:10:34,469 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-13 01:10:34,469 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-13 01:10:34,470 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-13 01:10:34,471 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-13 01:10:34,471 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-13 01:10:34,472 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbb2d23d-090d-4c8d-95d0-199a934d8f42/bin/uautomizer-WNIpwEf4Nt/config/svcomp-Termination-64bit-Automizer_Default.epf [2021-10-13 01:10:34,530 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-13 01:10:34,533 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-13 01:10:34,533 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-10-13 01:10:34,534 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-10-13 01:10:34,536 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-10-13 01:10:34,536 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-10-13 01:10:34,536 INFO L138 SettingsManager]: * Use SBE=true [2021-10-13 01:10:34,536 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2021-10-13 01:10:34,537 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2021-10-13 01:10:34,537 INFO L138 SettingsManager]: * Use old map elimination=false [2021-10-13 01:10:34,538 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2021-10-13 01:10:34,539 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2021-10-13 01:10:34,539 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2021-10-13 01:10:34,539 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-13 01:10:34,539 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-10-13 01:10:34,540 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-13 01:10:34,540 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-13 01:10:34,540 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2021-10-13 01:10:34,540 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2021-10-13 01:10:34,541 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2021-10-13 01:10:34,541 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-13 01:10:34,541 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2021-10-13 01:10:34,541 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-13 01:10:34,542 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2021-10-13 01:10:34,542 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-13 01:10:34,542 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-10-13 01:10:34,545 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-13 01:10:34,545 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-10-13 01:10:34,546 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-13 01:10:34,547 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2021-10-13 01:10:34,547 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_bbb2d23d-090d-4c8d-95d0-199a934d8f42/bin/uautomizer-WNIpwEf4Nt/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbb2d23d-090d-4c8d-95d0-199a934d8f42/bin/uautomizer-WNIpwEf4Nt Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 73a986a1d92244ec74fbbfc5c06684e9b6828bb2 [2021-10-13 01:10:34,885 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-13 01:10:34,910 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-13 01:10:34,913 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-13 01:10:34,915 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-13 01:10:34,916 INFO L275 PluginConnector]: CDTParser initialized [2021-10-13 01:10:34,917 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbb2d23d-090d-4c8d-95d0-199a934d8f42/bin/uautomizer-WNIpwEf4Nt/../../sv-benchmarks/c/termination-15/array15_alloca.i [2021-10-13 01:10:35,006 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbb2d23d-090d-4c8d-95d0-199a934d8f42/bin/uautomizer-WNIpwEf4Nt/data/ecfc785fb/dfce596ccf284e44af7f00bace4d76a5/FLAG134283add [2021-10-13 01:10:35,760 INFO L306 CDTParser]: Found 1 translation units. [2021-10-13 01:10:35,761 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbb2d23d-090d-4c8d-95d0-199a934d8f42/sv-benchmarks/c/termination-15/array15_alloca.i [2021-10-13 01:10:35,782 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbb2d23d-090d-4c8d-95d0-199a934d8f42/bin/uautomizer-WNIpwEf4Nt/data/ecfc785fb/dfce596ccf284e44af7f00bace4d76a5/FLAG134283add [2021-10-13 01:10:36,001 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbb2d23d-090d-4c8d-95d0-199a934d8f42/bin/uautomizer-WNIpwEf4Nt/data/ecfc785fb/dfce596ccf284e44af7f00bace4d76a5 [2021-10-13 01:10:36,004 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-13 01:10:36,006 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-13 01:10:36,008 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-13 01:10:36,008 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-13 01:10:36,019 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-13 01:10:36,020 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 01:10:36" (1/1) ... [2021-10-13 01:10:36,021 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@31e7f7ab and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 01:10:36, skipping insertion in model container [2021-10-13 01:10:36,022 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 01:10:36" (1/1) ... [2021-10-13 01:10:36,030 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-13 01:10:36,096 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-13 01:10:36,448 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-13 01:10:36,458 INFO L203 MainTranslator]: Completed pre-run [2021-10-13 01:10:36,507 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-13 01:10:36,559 INFO L208 MainTranslator]: Completed translation [2021-10-13 01:10:36,559 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 01:10:36 WrapperNode [2021-10-13 01:10:36,560 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-13 01:10:36,561 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-13 01:10:36,561 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-13 01:10:36,562 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-13 01:10:36,572 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 01:10:36" (1/1) ... [2021-10-13 01:10:36,605 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 01:10:36" (1/1) ... [2021-10-13 01:10:36,637 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-13 01:10:36,639 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-13 01:10:36,639 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-13 01:10:36,639 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-13 01:10:36,649 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 01:10:36" (1/1) ... [2021-10-13 01:10:36,649 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 01:10:36" (1/1) ... [2021-10-13 01:10:36,661 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 01:10:36" (1/1) ... [2021-10-13 01:10:36,664 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 01:10:36" (1/1) ... [2021-10-13 01:10:36,670 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 01:10:36" (1/1) ... [2021-10-13 01:10:36,681 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 01:10:36" (1/1) ... [2021-10-13 01:10:36,688 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 01:10:36" (1/1) ... [2021-10-13 01:10:36,695 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-13 01:10:36,696 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-13 01:10:36,699 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-13 01:10:36,700 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-13 01:10:36,701 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 01:10:36" (1/1) ... [2021-10-13 01:10:36,713 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 01:10:36,726 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbb2d23d-090d-4c8d-95d0-199a934d8f42/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 01:10:36,739 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbb2d23d-090d-4c8d-95d0-199a934d8f42/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 01:10:36,741 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbb2d23d-090d-4c8d-95d0-199a934d8f42/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2021-10-13 01:10:36,788 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-10-13 01:10:36,788 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-10-13 01:10:36,789 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-13 01:10:36,789 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-10-13 01:10:36,790 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-13 01:10:36,790 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-13 01:10:37,021 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-13 01:10:37,021 INFO L299 CfgBuilder]: Removed 6 assume(true) statements. [2021-10-13 01:10:37,023 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 01:10:37 BoogieIcfgContainer [2021-10-13 01:10:37,024 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-13 01:10:37,025 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2021-10-13 01:10:37,025 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2021-10-13 01:10:37,029 INFO L275 PluginConnector]: BuchiAutomizer initialized [2021-10-13 01:10:37,029 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-10-13 01:10:37,030 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 13.10 01:10:36" (1/3) ... [2021-10-13 01:10:37,032 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@3a5e9343 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 13.10 01:10:37, skipping insertion in model container [2021-10-13 01:10:37,032 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-10-13 01:10:37,032 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 01:10:36" (2/3) ... [2021-10-13 01:10:37,033 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@3a5e9343 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 13.10 01:10:37, skipping insertion in model container [2021-10-13 01:10:37,033 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-10-13 01:10:37,033 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 01:10:37" (3/3) ... [2021-10-13 01:10:37,034 INFO L389 chiAutomizerObserver]: Analyzing ICFG array15_alloca.i [2021-10-13 01:10:37,086 INFO L359 BuchiCegarLoop]: Interprodecural is true [2021-10-13 01:10:37,086 INFO L360 BuchiCegarLoop]: Hoare is false [2021-10-13 01:10:37,086 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2021-10-13 01:10:37,086 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2021-10-13 01:10:37,087 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-10-13 01:10:37,087 INFO L364 BuchiCegarLoop]: Difference is false [2021-10-13 01:10:37,087 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-10-13 01:10:37,087 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2021-10-13 01:10:37,105 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 15 states, 14 states have (on average 1.5714285714285714) internal successors, (22), 14 states have internal predecessors, (22), 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) [2021-10-13 01:10:37,127 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 5 [2021-10-13 01:10:37,128 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-13 01:10:37,128 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-13 01:10:37,135 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1] [2021-10-13 01:10:37,135 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2021-10-13 01:10:37,136 INFO L425 BuchiCegarLoop]: ======== Iteration 1============ [2021-10-13 01:10:37,136 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 15 states, 14 states have (on average 1.5714285714285714) internal successors, (22), 14 states have internal predecessors, (22), 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) [2021-10-13 01:10:37,138 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 5 [2021-10-13 01:10:37,138 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-13 01:10:37,138 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-13 01:10:37,139 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1] [2021-10-13 01:10:37,139 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2021-10-13 01:10:37,148 INFO L791 eck$LassoCheckResult]: Stem: 4#ULTIMATE.startENTRYtrue #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier; 7#L-1true havoc main_#res;havoc main_#t~nondet205, main_#t~malloc206.base, main_#t~malloc206.offset, main_#t~nondet208, main_#t~mem209, main_#t~post207, main_#t~mem210, main_#t~post211, main_#t~post212, main_~i~0, main_~j~0, main_~length~0, main_~arr~0.base, main_~arr~0.offset;havoc main_~i~0;havoc main_~j~0;main_~length~0 := main_#t~nondet205;havoc main_#t~nondet205; 11#L367true assume !(main_~length~0 < 1); 8#L367-2true call main_#t~malloc206.base, main_#t~malloc206.offset := #Ultimate.allocOnStack(4 * main_~length~0);main_~arr~0.base, main_~arr~0.offset := main_#t~malloc206.base, main_#t~malloc206.offset; 5#L369true assume !(main_~arr~0.base == 0 && main_~arr~0.offset == 0);main_~i~0 := 0; 6#L370-3true [2021-10-13 01:10:37,148 INFO L793 eck$LassoCheckResult]: Loop: 6#L370-3true assume !!(main_~i~0 < main_~length~0);call write~int(main_#t~nondet208, main_~arr~0.base, main_~arr~0.offset + 4 * main_~i~0, 4);havoc main_#t~nondet208;call main_#t~mem209 := read~int(main_~arr~0.base, main_~arr~0.offset + 4 * main_~i~0, 4); 13#L372true assume main_#t~mem209 < 0;havoc main_#t~mem209;call write~int(0, main_~arr~0.base, main_~arr~0.offset + 4 * main_~i~0, 4); 16#L370-2true main_#t~post207 := main_~i~0;main_~i~0 := 1 + main_#t~post207;havoc main_#t~post207; 6#L370-3true [2021-10-13 01:10:37,155 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 01:10:37,156 INFO L82 PathProgramCache]: Analyzing trace with hash 28695753, now seen corresponding path program 1 times [2021-10-13 01:10:37,167 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 01:10:37,167 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1002087847] [2021-10-13 01:10:37,168 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 01:10:37,169 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 01:10:37,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 01:10:37,279 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-13 01:10:37,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 01:10:37,315 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-13 01:10:37,319 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 01:10:37,319 INFO L82 PathProgramCache]: Analyzing trace with hash 51737, now seen corresponding path program 1 times [2021-10-13 01:10:37,319 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 01:10:37,320 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1433323738] [2021-10-13 01:10:37,320 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 01:10:37,321 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 01:10:37,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 01:10:37,335 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-13 01:10:37,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 01:10:37,358 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-13 01:10:37,366 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 01:10:37,366 INFO L82 PathProgramCache]: Analyzing trace with hash 176707665, now seen corresponding path program 1 times [2021-10-13 01:10:37,366 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 01:10:37,367 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1441379930] [2021-10-13 01:10:37,367 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 01:10:37,367 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 01:10:37,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 01:10:37,417 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-13 01:10:37,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 01:10:37,473 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-13 01:10:37,898 INFO L210 LassoAnalysis]: Preferences: [2021-10-13 01:10:37,899 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-10-13 01:10:37,899 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-10-13 01:10:37,900 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-10-13 01:10:37,900 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2021-10-13 01:10:37,900 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 01:10:37,900 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-10-13 01:10:37,901 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-10-13 01:10:37,901 INFO L133 ssoRankerPreferences]: Filename of dumped script: array15_alloca.i_Iteration1_Lasso [2021-10-13 01:10:37,901 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-10-13 01:10:37,901 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-10-13 01:10:37,923 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-13 01:10:37,930 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-13 01:10:37,933 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-13 01:10:37,936 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-13 01:10:37,939 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-13 01:10:37,944 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-13 01:10:37,946 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-13 01:10:38,057 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-13 01:10:38,061 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-13 01:10:38,064 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-13 01:10:38,068 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-13 01:10:38,071 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-13 01:10:38,370 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-10-13 01:10:38,377 INFO L490 LassoAnalysis]: Using template 'affine'. [2021-10-13 01:10:38,380 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 01:10:38,380 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbb2d23d-090d-4c8d-95d0-199a934d8f42/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 01:10:38,382 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbb2d23d-090d-4c8d-95d0-199a934d8f42/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 01:10:38,385 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 [2021-10-13 01:10:38,396 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-13 01:10:38,397 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-13 01:10:38,397 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbb2d23d-090d-4c8d-95d0-199a934d8f42/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Waiting until timeout for monitored process [2021-10-13 01:10:38,399 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-13 01:10:38,399 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-13 01:10:38,399 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-13 01:10:38,402 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-13 01:10:38,403 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-13 01:10:38,422 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-13 01:10:38,462 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbb2d23d-090d-4c8d-95d0-199a934d8f42/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Forceful destruction successful, exit code 0 [2021-10-13 01:10:38,464 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 01:10:38,464 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbb2d23d-090d-4c8d-95d0-199a934d8f42/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 01:10:38,466 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbb2d23d-090d-4c8d-95d0-199a934d8f42/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 01:10:38,472 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 [2021-10-13 01:10:38,482 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-13 01:10:38,483 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-13 01:10:38,483 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-13 01:10:38,483 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-13 01:10:38,483 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-13 01:10:38,486 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-13 01:10:38,486 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-13 01:10:38,489 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbb2d23d-090d-4c8d-95d0-199a934d8f42/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Waiting until timeout for monitored process [2021-10-13 01:10:38,499 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-13 01:10:38,534 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbb2d23d-090d-4c8d-95d0-199a934d8f42/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Forceful destruction successful, exit code 0 [2021-10-13 01:10:38,535 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 01:10:38,535 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbb2d23d-090d-4c8d-95d0-199a934d8f42/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 01:10:38,538 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbb2d23d-090d-4c8d-95d0-199a934d8f42/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 01:10:38,541 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 [2021-10-13 01:10:38,552 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-13 01:10:38,552 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-13 01:10:38,553 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-13 01:10:38,553 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-13 01:10:38,553 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-13 01:10:38,554 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-13 01:10:38,554 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-13 01:10:38,556 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbb2d23d-090d-4c8d-95d0-199a934d8f42/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Waiting until timeout for monitored process [2021-10-13 01:10:38,569 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-13 01:10:38,613 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbb2d23d-090d-4c8d-95d0-199a934d8f42/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Forceful destruction successful, exit code 0 [2021-10-13 01:10:38,613 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 01:10:38,613 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbb2d23d-090d-4c8d-95d0-199a934d8f42/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 01:10:38,615 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbb2d23d-090d-4c8d-95d0-199a934d8f42/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 01:10:38,626 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-13 01:10:38,637 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-13 01:10:38,637 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-13 01:10:38,637 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-13 01:10:38,637 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-13 01:10:38,638 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-13 01:10:38,639 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-13 01:10:38,639 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-13 01:10:38,641 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbb2d23d-090d-4c8d-95d0-199a934d8f42/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Waiting until timeout for monitored process [2021-10-13 01:10:38,653 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-13 01:10:38,690 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbb2d23d-090d-4c8d-95d0-199a934d8f42/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Forceful destruction successful, exit code 0 [2021-10-13 01:10:38,691 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 01:10:38,692 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbb2d23d-090d-4c8d-95d0-199a934d8f42/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 01:10:38,693 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbb2d23d-090d-4c8d-95d0-199a934d8f42/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 01:10:38,700 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-13 01:10:38,710 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-13 01:10:38,710 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-13 01:10:38,710 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-13 01:10:38,710 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-13 01:10:38,716 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-13 01:10:38,717 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-13 01:10:38,722 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbb2d23d-090d-4c8d-95d0-199a934d8f42/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Waiting until timeout for monitored process [2021-10-13 01:10:38,729 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-13 01:10:38,770 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbb2d23d-090d-4c8d-95d0-199a934d8f42/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Forceful destruction successful, exit code 0 [2021-10-13 01:10:38,771 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 01:10:38,771 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbb2d23d-090d-4c8d-95d0-199a934d8f42/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 01:10:38,773 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbb2d23d-090d-4c8d-95d0-199a934d8f42/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 01:10:38,780 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 [2021-10-13 01:10:38,790 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-13 01:10:38,790 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-13 01:10:38,791 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-13 01:10:38,791 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-13 01:10:38,791 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-13 01:10:38,793 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-13 01:10:38,794 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-13 01:10:38,796 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbb2d23d-090d-4c8d-95d0-199a934d8f42/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Waiting until timeout for monitored process [2021-10-13 01:10:38,806 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-13 01:10:38,845 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbb2d23d-090d-4c8d-95d0-199a934d8f42/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Forceful destruction successful, exit code 0 [2021-10-13 01:10:38,846 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 01:10:38,846 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbb2d23d-090d-4c8d-95d0-199a934d8f42/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 01:10:38,848 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbb2d23d-090d-4c8d-95d0-199a934d8f42/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 01:10:38,856 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 [2021-10-13 01:10:38,867 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-13 01:10:38,867 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-13 01:10:38,868 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-13 01:10:38,868 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-13 01:10:38,877 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-13 01:10:38,879 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-13 01:10:38,892 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbb2d23d-090d-4c8d-95d0-199a934d8f42/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Waiting until timeout for monitored process [2021-10-13 01:10:38,897 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-13 01:10:38,939 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbb2d23d-090d-4c8d-95d0-199a934d8f42/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Forceful destruction successful, exit code 0 [2021-10-13 01:10:38,939 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 01:10:38,940 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbb2d23d-090d-4c8d-95d0-199a934d8f42/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 01:10:38,941 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbb2d23d-090d-4c8d-95d0-199a934d8f42/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 01:10:38,948 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 [2021-10-13 01:10:38,959 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-13 01:10:38,959 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-13 01:10:38,959 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-13 01:10:38,960 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-13 01:10:38,967 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-13 01:10:38,967 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-13 01:10:38,987 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbb2d23d-090d-4c8d-95d0-199a934d8f42/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Waiting until timeout for monitored process [2021-10-13 01:10:38,993 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-13 01:10:39,032 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbb2d23d-090d-4c8d-95d0-199a934d8f42/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Forceful destruction successful, exit code 0 [2021-10-13 01:10:39,032 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 01:10:39,032 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbb2d23d-090d-4c8d-95d0-199a934d8f42/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 01:10:39,034 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbb2d23d-090d-4c8d-95d0-199a934d8f42/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 01:10:39,045 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 [2021-10-13 01:10:39,056 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-13 01:10:39,056 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-13 01:10:39,056 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-13 01:10:39,057 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-13 01:10:39,057 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-13 01:10:39,058 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-13 01:10:39,058 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-13 01:10:39,060 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbb2d23d-090d-4c8d-95d0-199a934d8f42/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Waiting until timeout for monitored process [2021-10-13 01:10:39,069 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-13 01:10:39,108 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbb2d23d-090d-4c8d-95d0-199a934d8f42/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Forceful destruction successful, exit code 0 [2021-10-13 01:10:39,108 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 01:10:39,109 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbb2d23d-090d-4c8d-95d0-199a934d8f42/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 01:10:39,110 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbb2d23d-090d-4c8d-95d0-199a934d8f42/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 01:10:39,120 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 [2021-10-13 01:10:39,132 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-13 01:10:39,132 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-13 01:10:39,132 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-13 01:10:39,132 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-13 01:10:39,147 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-13 01:10:39,148 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-13 01:10:39,153 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbb2d23d-090d-4c8d-95d0-199a934d8f42/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Waiting until timeout for monitored process [2021-10-13 01:10:39,173 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2021-10-13 01:10:39,198 INFO L443 ModelExtractionUtils]: Simplification made 6 calls to the SMT solver. [2021-10-13 01:10:39,199 INFO L444 ModelExtractionUtils]: 11 out of 22 variables were initially zero. Simplification set additionally 8 variables to zero. [2021-10-13 01:10:39,201 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 01:10:39,201 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbb2d23d-090d-4c8d-95d0-199a934d8f42/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 01:10:39,203 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbb2d23d-090d-4c8d-95d0-199a934d8f42/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 01:10:39,222 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2021-10-13 01:10:39,231 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbb2d23d-090d-4c8d-95d0-199a934d8f42/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Waiting until timeout for monitored process [2021-10-13 01:10:39,254 INFO L438 nArgumentSynthesizer]: Removed 2 redundant supporting invariants from a total of 2. [2021-10-13 01:10:39,254 INFO L513 LassoAnalysis]: Proved termination. [2021-10-13 01:10:39,255 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~i~0, ULTIMATE.start_main_~length~0) = -1*ULTIMATE.start_main_~i~0 + 1*ULTIMATE.start_main_~length~0 Supporting invariants [] [2021-10-13 01:10:39,284 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbb2d23d-090d-4c8d-95d0-199a934d8f42/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Forceful destruction successful, exit code 0 [2021-10-13 01:10:39,294 INFO L297 tatePredicateManager]: 3 out of 3 supporting invariants were superfluous and have been removed [2021-10-13 01:10:39,318 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 01:10:39,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 01:10:39,334 INFO L263 TraceCheckSpWp]: Trace formula consists of 26 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-13 01:10:39,335 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 01:10:39,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 01:10:39,364 INFO L263 TraceCheckSpWp]: Trace formula consists of 18 conjuncts, 4 conjunts are in the unsatisfiable core [2021-10-13 01:10:39,365 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 01:10:39,396 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 01:10:39,413 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 [2021-10-13 01:10:39,414 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand has 15 states, 14 states have (on average 1.5714285714285714) internal successors, (22), 14 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 3 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 3 states have internal predecessors, (8), 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) [2021-10-13 01:10:39,469 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand has 15 states, 14 states have (on average 1.5714285714285714) internal successors, (22), 14 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0). Second operand has 3 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 3 states have internal predecessors, (8), 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 35 states and 50 transitions. Complement of second has 7 states. [2021-10-13 01:10:39,470 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 [2021-10-13 01:10:39,471 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 3 states have internal predecessors, (8), 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) [2021-10-13 01:10:39,472 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 33 transitions. [2021-10-13 01:10:39,474 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 33 transitions. Stem has 5 letters. Loop has 3 letters. [2021-10-13 01:10:39,475 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-13 01:10:39,476 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 33 transitions. Stem has 8 letters. Loop has 3 letters. [2021-10-13 01:10:39,476 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-13 01:10:39,476 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 33 transitions. Stem has 5 letters. Loop has 6 letters. [2021-10-13 01:10:39,477 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-13 01:10:39,478 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 35 states and 50 transitions. [2021-10-13 01:10:39,481 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2021-10-13 01:10:39,486 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 35 states to 12 states and 17 transitions. [2021-10-13 01:10:39,487 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 8 [2021-10-13 01:10:39,487 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 9 [2021-10-13 01:10:39,488 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 17 transitions. [2021-10-13 01:10:39,489 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-13 01:10:39,489 INFO L681 BuchiCegarLoop]: Abstraction has 12 states and 17 transitions. [2021-10-13 01:10:39,507 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12 states and 17 transitions. [2021-10-13 01:10:39,515 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12 to 12. [2021-10-13 01:10:39,516 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12 states, 12 states have (on average 1.4166666666666667) internal successors, (17), 11 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 01:10:39,517 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 17 transitions. [2021-10-13 01:10:39,518 INFO L704 BuchiCegarLoop]: Abstraction has 12 states and 17 transitions. [2021-10-13 01:10:39,518 INFO L587 BuchiCegarLoop]: Abstraction has 12 states and 17 transitions. [2021-10-13 01:10:39,518 INFO L425 BuchiCegarLoop]: ======== Iteration 2============ [2021-10-13 01:10:39,519 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 12 states and 17 transitions. [2021-10-13 01:10:39,520 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2021-10-13 01:10:39,520 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-13 01:10:39,520 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-13 01:10:39,521 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2021-10-13 01:10:39,521 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2021-10-13 01:10:39,521 INFO L791 eck$LassoCheckResult]: Stem: 113#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier; 114#L-1 havoc main_#res;havoc main_#t~nondet205, main_#t~malloc206.base, main_#t~malloc206.offset, main_#t~nondet208, main_#t~mem209, main_#t~post207, main_#t~mem210, main_#t~post211, main_#t~post212, main_~i~0, main_~j~0, main_~length~0, main_~arr~0.base, main_~arr~0.offset;havoc main_~i~0;havoc main_~j~0;main_~length~0 := main_#t~nondet205;havoc main_#t~nondet205; 121#L367 assume !(main_~length~0 < 1); 115#L367-2 call main_#t~malloc206.base, main_#t~malloc206.offset := #Ultimate.allocOnStack(4 * main_~length~0);main_~arr~0.base, main_~arr~0.offset := main_#t~malloc206.base, main_#t~malloc206.offset; 116#L369 assume !(main_~arr~0.base == 0 && main_~arr~0.offset == 0);main_~i~0 := 0; 117#L370-3 assume !(main_~i~0 < main_~length~0); 118#L370-4 main_~j~0 := 0; 119#L378-2 [2021-10-13 01:10:39,521 INFO L793 eck$LassoCheckResult]: Loop: 119#L378-2 assume !!(0 <= main_~j~0 && main_~j~0 < main_~length~0);call main_#t~mem210 := read~int(main_~arr~0.base, main_~arr~0.offset + 4 * main_~j~0, 4); 120#L378 assume main_#t~mem210 > 0;havoc main_#t~mem210;main_#t~post211 := main_~j~0;main_~j~0 := main_#t~post211 - 1;havoc main_#t~post211; 119#L378-2 [2021-10-13 01:10:39,522 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 01:10:39,522 INFO L82 PathProgramCache]: Analyzing trace with hash 1806815510, now seen corresponding path program 1 times [2021-10-13 01:10:39,522 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 01:10:39,523 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1750059151] [2021-10-13 01:10:39,523 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 01:10:39,523 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 01:10:39,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 01:10:39,581 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 01:10:39,581 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 01:10:39,582 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1750059151] [2021-10-13 01:10:39,582 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1750059151] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-13 01:10:39,583 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-13 01:10:39,583 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-10-13 01:10:39,583 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [381079694] [2021-10-13 01:10:39,586 INFO L796 eck$LassoCheckResult]: stem already infeasible [2021-10-13 01:10:39,587 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 01:10:39,587 INFO L82 PathProgramCache]: Analyzing trace with hash 2308, now seen corresponding path program 1 times [2021-10-13 01:10:39,587 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 01:10:39,588 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [535131886] [2021-10-13 01:10:39,588 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 01:10:39,588 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 01:10:39,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 01:10:39,595 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-13 01:10:39,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 01:10:39,602 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-13 01:10:39,658 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 01:10:39,661 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-13 01:10:39,662 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-10-13 01:10:39,663 INFO L87 Difference]: Start difference. First operand 12 states and 17 transitions. cyclomatic complexity: 7 Second operand has 4 states, 4 states have (on average 1.75) internal successors, (7), 4 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) [2021-10-13 01:10:39,693 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 01:10:39,694 INFO L93 Difference]: Finished difference Result 14 states and 19 transitions. [2021-10-13 01:10:39,694 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-13 01:10:39,695 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 14 states and 19 transitions. [2021-10-13 01:10:39,696 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2021-10-13 01:10:39,697 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 14 states to 14 states and 19 transitions. [2021-10-13 01:10:39,697 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 9 [2021-10-13 01:10:39,697 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 9 [2021-10-13 01:10:39,697 INFO L73 IsDeterministic]: Start isDeterministic. Operand 14 states and 19 transitions. [2021-10-13 01:10:39,698 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-13 01:10:39,698 INFO L681 BuchiCegarLoop]: Abstraction has 14 states and 19 transitions. [2021-10-13 01:10:39,698 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14 states and 19 transitions. [2021-10-13 01:10:39,699 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14 to 12. [2021-10-13 01:10:39,700 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12 states, 12 states have (on average 1.3333333333333333) internal successors, (16), 11 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 01:10:39,700 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 16 transitions. [2021-10-13 01:10:39,701 INFO L704 BuchiCegarLoop]: Abstraction has 12 states and 16 transitions. [2021-10-13 01:10:39,701 INFO L587 BuchiCegarLoop]: Abstraction has 12 states and 16 transitions. [2021-10-13 01:10:39,701 INFO L425 BuchiCegarLoop]: ======== Iteration 3============ [2021-10-13 01:10:39,701 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 12 states and 16 transitions. [2021-10-13 01:10:39,702 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2021-10-13 01:10:39,702 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-13 01:10:39,702 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-13 01:10:39,703 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 01:10:39,703 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2021-10-13 01:10:39,703 INFO L791 eck$LassoCheckResult]: Stem: 146#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier; 147#L-1 havoc main_#res;havoc main_#t~nondet205, main_#t~malloc206.base, main_#t~malloc206.offset, main_#t~nondet208, main_#t~mem209, main_#t~post207, main_#t~mem210, main_#t~post211, main_#t~post212, main_~i~0, main_~j~0, main_~length~0, main_~arr~0.base, main_~arr~0.offset;havoc main_~i~0;havoc main_~j~0;main_~length~0 := main_#t~nondet205;havoc main_#t~nondet205; 154#L367 assume !(main_~length~0 < 1); 148#L367-2 call main_#t~malloc206.base, main_#t~malloc206.offset := #Ultimate.allocOnStack(4 * main_~length~0);main_~arr~0.base, main_~arr~0.offset := main_#t~malloc206.base, main_#t~malloc206.offset; 149#L369 assume !(main_~arr~0.base == 0 && main_~arr~0.offset == 0);main_~i~0 := 0; 150#L370-3 assume !!(main_~i~0 < main_~length~0);call write~int(main_#t~nondet208, main_~arr~0.base, main_~arr~0.offset + 4 * main_~i~0, 4);havoc main_#t~nondet208;call main_#t~mem209 := read~int(main_~arr~0.base, main_~arr~0.offset + 4 * main_~i~0, 4); 155#L372 assume !(main_#t~mem209 < 0);havoc main_#t~mem209; 157#L370-2 main_#t~post207 := main_~i~0;main_~i~0 := 1 + main_#t~post207;havoc main_#t~post207; 156#L370-3 assume !(main_~i~0 < main_~length~0); 151#L370-4 main_~j~0 := 0; 152#L378-2 [2021-10-13 01:10:39,704 INFO L793 eck$LassoCheckResult]: Loop: 152#L378-2 assume !!(0 <= main_~j~0 && main_~j~0 < main_~length~0);call main_#t~mem210 := read~int(main_~arr~0.base, main_~arr~0.offset + 4 * main_~j~0, 4); 153#L378 assume main_#t~mem210 > 0;havoc main_#t~mem210;main_#t~post211 := main_~j~0;main_~j~0 := main_#t~post211 - 1;havoc main_#t~post211; 152#L378-2 [2021-10-13 01:10:39,704 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 01:10:39,704 INFO L82 PathProgramCache]: Analyzing trace with hash -1982565540, now seen corresponding path program 1 times [2021-10-13 01:10:39,705 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 01:10:39,705 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [171226777] [2021-10-13 01:10:39,705 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 01:10:39,705 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 01:10:39,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 01:10:39,720 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-13 01:10:39,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 01:10:39,737 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-13 01:10:39,738 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 01:10:39,738 INFO L82 PathProgramCache]: Analyzing trace with hash 2308, now seen corresponding path program 2 times [2021-10-13 01:10:39,738 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 01:10:39,738 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1763298911] [2021-10-13 01:10:39,739 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 01:10:39,739 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 01:10:39,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 01:10:39,745 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-13 01:10:39,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 01:10:39,755 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-13 01:10:39,756 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 01:10:39,756 INFO L82 PathProgramCache]: Analyzing trace with hash 1719996831, now seen corresponding path program 1 times [2021-10-13 01:10:39,756 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 01:10:39,757 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [446858367] [2021-10-13 01:10:39,757 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 01:10:39,757 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 01:10:39,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 01:10:39,777 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-13 01:10:39,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 01:10:39,817 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-13 01:10:39,911 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbb2d23d-090d-4c8d-95d0-199a934d8f42/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Forceful destruction successful, exit code 0 [2021-10-13 01:10:40,261 INFO L210 LassoAnalysis]: Preferences: [2021-10-13 01:10:40,261 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-10-13 01:10:40,261 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-10-13 01:10:40,264 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-10-13 01:10:40,265 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2021-10-13 01:10:40,265 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 01:10:40,265 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-10-13 01:10:40,265 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-10-13 01:10:40,265 INFO L133 ssoRankerPreferences]: Filename of dumped script: array15_alloca.i_Iteration3_Lasso [2021-10-13 01:10:40,266 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-10-13 01:10:40,266 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-10-13 01:10:40,274 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-13 01:10:40,279 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-13 01:10:40,433 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-13 01:10:40,437 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-13 01:10:40,440 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-13 01:10:40,443 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-13 01:10:40,445 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-13 01:10:40,448 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-13 01:10:40,450 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-13 01:10:40,453 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-13 01:10:40,456 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-13 01:10:40,696 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-10-13 01:10:40,696 INFO L490 LassoAnalysis]: Using template 'affine'. [2021-10-13 01:10:40,696 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 01:10:40,696 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbb2d23d-090d-4c8d-95d0-199a934d8f42/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 01:10:40,705 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbb2d23d-090d-4c8d-95d0-199a934d8f42/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 01:10:40,722 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 [2021-10-13 01:10:40,732 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-13 01:10:40,732 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-13 01:10:40,733 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-13 01:10:40,733 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-13 01:10:40,733 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-13 01:10:40,734 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-13 01:10:40,734 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-13 01:10:40,740 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbb2d23d-090d-4c8d-95d0-199a934d8f42/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Waiting until timeout for monitored process [2021-10-13 01:10:40,749 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-13 01:10:40,786 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbb2d23d-090d-4c8d-95d0-199a934d8f42/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Forceful destruction successful, exit code 0 [2021-10-13 01:10:40,786 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 01:10:40,786 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbb2d23d-090d-4c8d-95d0-199a934d8f42/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 01:10:40,790 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbb2d23d-090d-4c8d-95d0-199a934d8f42/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 01:10:40,795 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbb2d23d-090d-4c8d-95d0-199a934d8f42/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (14)] Waiting until timeout for monitored process [2021-10-13 01:10:40,796 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 [2021-10-13 01:10:40,806 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-13 01:10:40,806 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-13 01:10:40,807 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-13 01:10:40,807 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-13 01:10:40,812 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-13 01:10:40,812 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-13 01:10:40,829 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-13 01:10:40,864 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbb2d23d-090d-4c8d-95d0-199a934d8f42/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (14)] Forceful destruction successful, exit code 0 [2021-10-13 01:10:40,865 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 01:10:40,865 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbb2d23d-090d-4c8d-95d0-199a934d8f42/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 01:10:40,870 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbb2d23d-090d-4c8d-95d0-199a934d8f42/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 01:10:40,876 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbb2d23d-090d-4c8d-95d0-199a934d8f42/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (15)] Waiting until timeout for monitored process [2021-10-13 01:10:40,877 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 [2021-10-13 01:10:40,887 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-13 01:10:40,887 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-13 01:10:40,887 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-13 01:10:40,887 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-13 01:10:40,904 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-13 01:10:40,904 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-13 01:10:40,924 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2021-10-13 01:10:40,981 INFO L443 ModelExtractionUtils]: Simplification made 20 calls to the SMT solver. [2021-10-13 01:10:40,981 INFO L444 ModelExtractionUtils]: 6 out of 25 variables were initially zero. Simplification set additionally 16 variables to zero. [2021-10-13 01:10:40,982 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 01:10:40,982 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbb2d23d-090d-4c8d-95d0-199a934d8f42/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 01:10:40,983 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbb2d23d-090d-4c8d-95d0-199a934d8f42/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 01:10:40,986 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2021-10-13 01:10:40,996 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbb2d23d-090d-4c8d-95d0-199a934d8f42/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (16)] Waiting until timeout for monitored process [2021-10-13 01:10:41,016 INFO L438 nArgumentSynthesizer]: Removed 2 redundant supporting invariants from a total of 2. [2021-10-13 01:10:41,016 INFO L513 LassoAnalysis]: Proved termination. [2021-10-13 01:10:41,016 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~j~0) = 2*ULTIMATE.start_main_~j~0 + 1 Supporting invariants [] [2021-10-13 01:10:41,057 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbb2d23d-090d-4c8d-95d0-199a934d8f42/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (15)] Forceful destruction successful, exit code 0 [2021-10-13 01:10:41,064 INFO L297 tatePredicateManager]: 3 out of 3 supporting invariants were superfluous and have been removed [2021-10-13 01:10:41,081 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 01:10:41,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 01:10:41,104 INFO L263 TraceCheckSpWp]: Trace formula consists of 40 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-13 01:10:41,105 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 01:10:41,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 01:10:41,143 INFO L263 TraceCheckSpWp]: Trace formula consists of 13 conjuncts, 4 conjunts are in the unsatisfiable core [2021-10-13 01:10:41,144 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 01:10:41,160 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 01:10:41,162 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 [2021-10-13 01:10:41,162 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 12 states and 16 transitions. cyclomatic complexity: 6 Second operand has 3 states, 3 states have (on average 4.0) internal successors, (12), 3 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) [2021-10-13 01:10:41,181 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 12 states and 16 transitions. cyclomatic complexity: 6. Second operand has 3 states, 3 states have (on average 4.0) internal successors, (12), 3 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) Result 16 states and 22 transitions. Complement of second has 5 states. [2021-10-13 01:10:41,181 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 3 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2021-10-13 01:10:41,182 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 4.0) internal successors, (12), 3 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) [2021-10-13 01:10:41,182 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 14 transitions. [2021-10-13 01:10:41,182 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 14 transitions. Stem has 10 letters. Loop has 2 letters. [2021-10-13 01:10:41,183 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-13 01:10:41,183 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 14 transitions. Stem has 12 letters. Loop has 2 letters. [2021-10-13 01:10:41,183 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-13 01:10:41,183 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 14 transitions. Stem has 10 letters. Loop has 4 letters. [2021-10-13 01:10:41,188 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-13 01:10:41,188 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 16 states and 22 transitions. [2021-10-13 01:10:41,193 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2021-10-13 01:10:41,194 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 16 states to 16 states and 22 transitions. [2021-10-13 01:10:41,195 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 10 [2021-10-13 01:10:41,195 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 11 [2021-10-13 01:10:41,195 INFO L73 IsDeterministic]: Start isDeterministic. Operand 16 states and 22 transitions. [2021-10-13 01:10:41,195 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2021-10-13 01:10:41,195 INFO L681 BuchiCegarLoop]: Abstraction has 16 states and 22 transitions. [2021-10-13 01:10:41,196 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16 states and 22 transitions. [2021-10-13 01:10:41,198 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16 to 16. [2021-10-13 01:10:41,199 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16 states, 16 states have (on average 1.375) internal successors, (22), 15 states have internal predecessors, (22), 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) [2021-10-13 01:10:41,202 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 22 transitions. [2021-10-13 01:10:41,203 INFO L704 BuchiCegarLoop]: Abstraction has 16 states and 22 transitions. [2021-10-13 01:10:41,203 INFO L587 BuchiCegarLoop]: Abstraction has 16 states and 22 transitions. [2021-10-13 01:10:41,203 INFO L425 BuchiCegarLoop]: ======== Iteration 4============ [2021-10-13 01:10:41,203 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 16 states and 22 transitions. [2021-10-13 01:10:41,208 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2021-10-13 01:10:41,208 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-13 01:10:41,208 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-13 01:10:41,209 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 01:10:41,209 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2021-10-13 01:10:41,210 INFO L791 eck$LassoCheckResult]: Stem: 243#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier; 244#L-1 havoc main_#res;havoc main_#t~nondet205, main_#t~malloc206.base, main_#t~malloc206.offset, main_#t~nondet208, main_#t~mem209, main_#t~post207, main_#t~mem210, main_#t~post211, main_#t~post212, main_~i~0, main_~j~0, main_~length~0, main_~arr~0.base, main_~arr~0.offset;havoc main_~i~0;havoc main_~j~0;main_~length~0 := main_#t~nondet205;havoc main_#t~nondet205; 254#L367 assume !(main_~length~0 < 1); 245#L367-2 call main_#t~malloc206.base, main_#t~malloc206.offset := #Ultimate.allocOnStack(4 * main_~length~0);main_~arr~0.base, main_~arr~0.offset := main_#t~malloc206.base, main_#t~malloc206.offset; 246#L369 assume !(main_~arr~0.base == 0 && main_~arr~0.offset == 0);main_~i~0 := 0; 247#L370-3 assume !!(main_~i~0 < main_~length~0);call write~int(main_#t~nondet208, main_~arr~0.base, main_~arr~0.offset + 4 * main_~i~0, 4);havoc main_#t~nondet208;call main_#t~mem209 := read~int(main_~arr~0.base, main_~arr~0.offset + 4 * main_~i~0, 4); 255#L372 assume !(main_#t~mem209 < 0);havoc main_#t~mem209; 257#L370-2 main_#t~post207 := main_~i~0;main_~i~0 := 1 + main_#t~post207;havoc main_#t~post207; 256#L370-3 assume !(main_~i~0 < main_~length~0); 248#L370-4 main_~j~0 := 0; 249#L378-2 assume !!(0 <= main_~j~0 && main_~j~0 < main_~length~0);call main_#t~mem210 := read~int(main_~arr~0.base, main_~arr~0.offset + 4 * main_~j~0, 4); 250#L378 assume !(main_#t~mem210 > 0);havoc main_#t~mem210;main_#t~post212 := main_~j~0;main_~j~0 := 1 + main_#t~post212;havoc main_#t~post212; 251#L378-2 [2021-10-13 01:10:41,210 INFO L793 eck$LassoCheckResult]: Loop: 251#L378-2 assume !!(0 <= main_~j~0 && main_~j~0 < main_~length~0);call main_#t~mem210 := read~int(main_~arr~0.base, main_~arr~0.offset + 4 * main_~j~0, 4); 258#L378 assume main_#t~mem210 > 0;havoc main_#t~mem210;main_#t~post211 := main_~j~0;main_~j~0 := main_#t~post211 - 1;havoc main_#t~post211; 251#L378-2 [2021-10-13 01:10:41,210 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 01:10:41,210 INFO L82 PathProgramCache]: Analyzing trace with hash 1719996833, now seen corresponding path program 1 times [2021-10-13 01:10:41,211 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 01:10:41,211 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [624018404] [2021-10-13 01:10:41,211 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 01:10:41,211 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 01:10:41,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 01:10:41,237 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-13 01:10:41,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 01:10:41,280 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-13 01:10:41,287 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 01:10:41,287 INFO L82 PathProgramCache]: Analyzing trace with hash 2308, now seen corresponding path program 3 times [2021-10-13 01:10:41,288 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 01:10:41,288 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [826177788] [2021-10-13 01:10:41,288 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 01:10:41,288 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 01:10:41,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 01:10:41,294 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-13 01:10:41,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 01:10:41,300 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-13 01:10:41,304 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 01:10:41,320 INFO L82 PathProgramCache]: Analyzing trace with hash -645451100, now seen corresponding path program 1 times [2021-10-13 01:10:41,320 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 01:10:41,320 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [776451914] [2021-10-13 01:10:41,321 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 01:10:41,321 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 01:10:41,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 01:10:41,397 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbb2d23d-090d-4c8d-95d0-199a934d8f42/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (16)] Forceful destruction successful, exit code 0 [2021-10-13 01:10:41,426 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 1 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 01:10:41,427 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 01:10:41,427 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [776451914] [2021-10-13 01:10:41,427 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [776451914] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-13 01:10:41,427 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [194303461] [2021-10-13 01:10:41,428 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 01:10:41,428 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-13 01:10:41,428 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbb2d23d-090d-4c8d-95d0-199a934d8f42/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 01:10:41,429 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbb2d23d-090d-4c8d-95d0-199a934d8f42/bin/uautomizer-WNIpwEf4Nt/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-13 01:10:41,430 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbb2d23d-090d-4c8d-95d0-199a934d8f42/bin/uautomizer-WNIpwEf4Nt/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Waiting until timeout for monitored process [2021-10-13 01:10:41,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 01:10:41,486 INFO L263 TraceCheckSpWp]: Trace formula consists of 62 conjuncts, 6 conjunts are in the unsatisfiable core [2021-10-13 01:10:41,488 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 01:10:41,582 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 2 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 01:10:41,583 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [194303461] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-13 01:10:41,583 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-13 01:10:41,583 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 10 [2021-10-13 01:10:41,584 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1507626272] [2021-10-13 01:10:41,668 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 01:10:41,669 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-10-13 01:10:41,669 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=64, Unknown=0, NotChecked=0, Total=90 [2021-10-13 01:10:41,669 INFO L87 Difference]: Start difference. First operand 16 states and 22 transitions. cyclomatic complexity: 9 Second operand has 10 states, 10 states have (on average 2.2) internal successors, (22), 10 states have internal predecessors, (22), 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) [2021-10-13 01:10:41,817 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 01:10:41,817 INFO L93 Difference]: Finished difference Result 35 states and 48 transitions. [2021-10-13 01:10:41,817 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-10-13 01:10:41,818 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 35 states and 48 transitions. [2021-10-13 01:10:41,819 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2021-10-13 01:10:41,819 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 35 states to 21 states and 28 transitions. [2021-10-13 01:10:41,819 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 11 [2021-10-13 01:10:41,820 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 11 [2021-10-13 01:10:41,820 INFO L73 IsDeterministic]: Start isDeterministic. Operand 21 states and 28 transitions. [2021-10-13 01:10:41,820 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2021-10-13 01:10:41,820 INFO L681 BuchiCegarLoop]: Abstraction has 21 states and 28 transitions. [2021-10-13 01:10:41,820 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21 states and 28 transitions. [2021-10-13 01:10:41,821 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21 to 19. [2021-10-13 01:10:41,821 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19 states, 19 states have (on average 1.3157894736842106) internal successors, (25), 18 states have internal predecessors, (25), 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) [2021-10-13 01:10:41,822 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 25 transitions. [2021-10-13 01:10:41,822 INFO L704 BuchiCegarLoop]: Abstraction has 19 states and 25 transitions. [2021-10-13 01:10:41,822 INFO L587 BuchiCegarLoop]: Abstraction has 19 states and 25 transitions. [2021-10-13 01:10:41,822 INFO L425 BuchiCegarLoop]: ======== Iteration 5============ [2021-10-13 01:10:41,823 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 19 states and 25 transitions. [2021-10-13 01:10:41,823 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2021-10-13 01:10:41,823 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-13 01:10:41,823 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-13 01:10:41,824 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 01:10:41,824 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2021-10-13 01:10:41,825 INFO L791 eck$LassoCheckResult]: Stem: 358#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier; 359#L-1 havoc main_#res;havoc main_#t~nondet205, main_#t~malloc206.base, main_#t~malloc206.offset, main_#t~nondet208, main_#t~mem209, main_#t~post207, main_#t~mem210, main_#t~post211, main_#t~post212, main_~i~0, main_~j~0, main_~length~0, main_~arr~0.base, main_~arr~0.offset;havoc main_~i~0;havoc main_~j~0;main_~length~0 := main_#t~nondet205;havoc main_#t~nondet205; 369#L367 assume !(main_~length~0 < 1); 360#L367-2 call main_#t~malloc206.base, main_#t~malloc206.offset := #Ultimate.allocOnStack(4 * main_~length~0);main_~arr~0.base, main_~arr~0.offset := main_#t~malloc206.base, main_#t~malloc206.offset; 361#L369 assume !(main_~arr~0.base == 0 && main_~arr~0.offset == 0);main_~i~0 := 0; 362#L370-3 assume !!(main_~i~0 < main_~length~0);call write~int(main_#t~nondet208, main_~arr~0.base, main_~arr~0.offset + 4 * main_~i~0, 4);havoc main_#t~nondet208;call main_#t~mem209 := read~int(main_~arr~0.base, main_~arr~0.offset + 4 * main_~i~0, 4); 370#L372 assume !(main_#t~mem209 < 0);havoc main_#t~mem209; 375#L370-2 main_#t~post207 := main_~i~0;main_~i~0 := 1 + main_#t~post207;havoc main_#t~post207; 371#L370-3 assume !!(main_~i~0 < main_~length~0);call write~int(main_#t~nondet208, main_~arr~0.base, main_~arr~0.offset + 4 * main_~i~0, 4);havoc main_#t~nondet208;call main_#t~mem209 := read~int(main_~arr~0.base, main_~arr~0.offset + 4 * main_~i~0, 4); 372#L372 assume !(main_#t~mem209 < 0);havoc main_#t~mem209; 374#L370-2 main_#t~post207 := main_~i~0;main_~i~0 := 1 + main_#t~post207;havoc main_#t~post207; 376#L370-3 assume !(main_~i~0 < main_~length~0); 367#L370-4 main_~j~0 := 0; 368#L378-2 assume !!(0 <= main_~j~0 && main_~j~0 < main_~length~0);call main_#t~mem210 := read~int(main_~arr~0.base, main_~arr~0.offset + 4 * main_~j~0, 4); 363#L378 assume !(main_#t~mem210 > 0);havoc main_#t~mem210;main_#t~post212 := main_~j~0;main_~j~0 := 1 + main_#t~post212;havoc main_#t~post212; 364#L378-2 [2021-10-13 01:10:41,825 INFO L793 eck$LassoCheckResult]: Loop: 364#L378-2 assume !!(0 <= main_~j~0 && main_~j~0 < main_~length~0);call main_#t~mem210 := read~int(main_~arr~0.base, main_~arr~0.offset + 4 * main_~j~0, 4); 373#L378 assume main_#t~mem210 > 0;havoc main_#t~mem210;main_#t~post211 := main_~j~0;main_~j~0 := main_#t~post211 - 1;havoc main_#t~post211; 364#L378-2 [2021-10-13 01:10:41,825 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 01:10:41,825 INFO L82 PathProgramCache]: Analyzing trace with hash -1238701285, now seen corresponding path program 2 times [2021-10-13 01:10:41,826 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 01:10:41,826 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1152119905] [2021-10-13 01:10:41,826 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 01:10:41,826 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 01:10:41,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 01:10:41,845 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-13 01:10:41,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 01:10:41,865 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-13 01:10:41,865 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 01:10:41,865 INFO L82 PathProgramCache]: Analyzing trace with hash 2308, now seen corresponding path program 4 times [2021-10-13 01:10:41,866 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 01:10:41,866 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2113209661] [2021-10-13 01:10:41,866 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 01:10:41,866 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 01:10:41,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 01:10:41,871 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-13 01:10:41,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 01:10:41,875 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-13 01:10:41,876 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 01:10:41,876 INFO L82 PathProgramCache]: Analyzing trace with hash -685992546, now seen corresponding path program 2 times [2021-10-13 01:10:41,876 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 01:10:41,877 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [110539125] [2021-10-13 01:10:41,877 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 01:10:41,877 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 01:10:41,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 01:10:41,906 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-13 01:10:41,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 01:10:41,941 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-13 01:10:42,427 INFO L210 LassoAnalysis]: Preferences: [2021-10-13 01:10:42,427 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-10-13 01:10:42,427 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-10-13 01:10:42,427 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-10-13 01:10:42,429 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2021-10-13 01:10:42,429 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 01:10:42,430 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-10-13 01:10:42,430 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-10-13 01:10:42,430 INFO L133 ssoRankerPreferences]: Filename of dumped script: array15_alloca.i_Iteration5_Lasso [2021-10-13 01:10:42,430 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-10-13 01:10:42,430 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-10-13 01:10:42,433 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-13 01:10:42,438 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-13 01:10:42,441 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-13 01:10:42,443 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-13 01:10:42,445 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-13 01:10:42,447 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-13 01:10:42,449 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-13 01:10:42,605 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-13 01:10:42,607 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-13 01:10:42,610 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-13 01:10:42,612 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-13 01:10:42,831 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-10-13 01:10:42,831 INFO L490 LassoAnalysis]: Using template 'affine'. [2021-10-13 01:10:42,832 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 01:10:42,832 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbb2d23d-090d-4c8d-95d0-199a934d8f42/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 01:10:42,833 INFO L229 MonitoredProcess]: Starting monitored process 18 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbb2d23d-090d-4c8d-95d0-199a934d8f42/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 01:10:42,839 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbb2d23d-090d-4c8d-95d0-199a934d8f42/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (18)] Waiting until timeout for monitored process [2021-10-13 01:10:42,839 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 [2021-10-13 01:10:42,850 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-13 01:10:42,850 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-13 01:10:42,850 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-13 01:10:42,850 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-13 01:10:42,851 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-13 01:10:42,851 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-13 01:10:42,851 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-13 01:10:42,862 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-13 01:10:42,890 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbb2d23d-090d-4c8d-95d0-199a934d8f42/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (18)] Forceful destruction successful, exit code 0 [2021-10-13 01:10:42,890 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 01:10:42,890 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbb2d23d-090d-4c8d-95d0-199a934d8f42/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 01:10:42,891 INFO L229 MonitoredProcess]: Starting monitored process 19 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbb2d23d-090d-4c8d-95d0-199a934d8f42/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 01:10:42,892 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbb2d23d-090d-4c8d-95d0-199a934d8f42/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (19)] Waiting until timeout for monitored process [2021-10-13 01:10:42,896 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 [2021-10-13 01:10:42,904 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-13 01:10:42,904 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-13 01:10:42,904 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-13 01:10:42,904 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-13 01:10:42,907 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-13 01:10:42,907 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-13 01:10:42,915 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-13 01:10:42,939 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbb2d23d-090d-4c8d-95d0-199a934d8f42/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (19)] Forceful destruction successful, exit code 0 [2021-10-13 01:10:42,940 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 01:10:42,940 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbb2d23d-090d-4c8d-95d0-199a934d8f42/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 01:10:42,941 INFO L229 MonitoredProcess]: Starting monitored process 20 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbb2d23d-090d-4c8d-95d0-199a934d8f42/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 01:10:42,945 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbb2d23d-090d-4c8d-95d0-199a934d8f42/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (20)] Waiting until timeout for monitored process [2021-10-13 01:10:42,947 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 [2021-10-13 01:10:42,955 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-13 01:10:42,956 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-13 01:10:42,956 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-13 01:10:42,956 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-13 01:10:42,956 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-13 01:10:42,957 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-13 01:10:42,957 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-13 01:10:42,962 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-13 01:10:42,983 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbb2d23d-090d-4c8d-95d0-199a934d8f42/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (20)] Forceful destruction successful, exit code 0 [2021-10-13 01:10:42,983 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 01:10:42,983 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbb2d23d-090d-4c8d-95d0-199a934d8f42/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 01:10:42,984 INFO L229 MonitoredProcess]: Starting monitored process 21 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbb2d23d-090d-4c8d-95d0-199a934d8f42/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 01:10:42,988 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbb2d23d-090d-4c8d-95d0-199a934d8f42/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (21)] Waiting until timeout for monitored process [2021-10-13 01:10:42,989 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 [2021-10-13 01:10:42,997 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-13 01:10:42,997 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-13 01:10:42,997 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-13 01:10:42,997 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-13 01:10:42,997 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-13 01:10:42,998 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-13 01:10:42,998 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-13 01:10:42,999 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-13 01:10:43,021 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbb2d23d-090d-4c8d-95d0-199a934d8f42/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (21)] Forceful destruction successful, exit code 0 [2021-10-13 01:10:43,021 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 01:10:43,022 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbb2d23d-090d-4c8d-95d0-199a934d8f42/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 01:10:43,022 INFO L229 MonitoredProcess]: Starting monitored process 22 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbb2d23d-090d-4c8d-95d0-199a934d8f42/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 01:10:43,023 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbb2d23d-090d-4c8d-95d0-199a934d8f42/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (22)] Waiting until timeout for monitored process [2021-10-13 01:10:43,024 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 [2021-10-13 01:10:43,031 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-13 01:10:43,031 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-13 01:10:43,032 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-13 01:10:43,032 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-13 01:10:43,032 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-13 01:10:43,033 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-13 01:10:43,034 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-13 01:10:43,043 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-13 01:10:43,067 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbb2d23d-090d-4c8d-95d0-199a934d8f42/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (22)] Forceful destruction successful, exit code 0 [2021-10-13 01:10:43,067 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 01:10:43,067 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbb2d23d-090d-4c8d-95d0-199a934d8f42/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 01:10:43,068 INFO L229 MonitoredProcess]: Starting monitored process 23 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbb2d23d-090d-4c8d-95d0-199a934d8f42/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 01:10:43,069 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbb2d23d-090d-4c8d-95d0-199a934d8f42/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (23)] Waiting until timeout for monitored process [2021-10-13 01:10:43,069 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 [2021-10-13 01:10:43,076 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-13 01:10:43,077 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-13 01:10:43,077 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-13 01:10:43,077 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-13 01:10:43,077 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-13 01:10:43,077 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-13 01:10:43,077 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-13 01:10:43,078 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-13 01:10:43,101 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbb2d23d-090d-4c8d-95d0-199a934d8f42/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (23)] Forceful destruction successful, exit code 0 [2021-10-13 01:10:43,102 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 01:10:43,102 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbb2d23d-090d-4c8d-95d0-199a934d8f42/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 01:10:43,103 INFO L229 MonitoredProcess]: Starting monitored process 24 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbb2d23d-090d-4c8d-95d0-199a934d8f42/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 01:10:43,103 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbb2d23d-090d-4c8d-95d0-199a934d8f42/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (24)] Waiting until timeout for monitored process [2021-10-13 01:10:43,104 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 [2021-10-13 01:10:43,111 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-13 01:10:43,111 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-13 01:10:43,111 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-13 01:10:43,111 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-13 01:10:43,113 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-13 01:10:43,113 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-13 01:10:43,140 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-13 01:10:43,179 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbb2d23d-090d-4c8d-95d0-199a934d8f42/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (24)] Forceful destruction successful, exit code 0 [2021-10-13 01:10:43,180 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 01:10:43,180 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbb2d23d-090d-4c8d-95d0-199a934d8f42/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 01:10:43,181 INFO L229 MonitoredProcess]: Starting monitored process 25 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbb2d23d-090d-4c8d-95d0-199a934d8f42/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 01:10:43,187 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 [2021-10-13 01:10:43,188 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbb2d23d-090d-4c8d-95d0-199a934d8f42/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (25)] Waiting until timeout for monitored process [2021-10-13 01:10:43,195 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-13 01:10:43,195 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-13 01:10:43,195 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-13 01:10:43,196 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-13 01:10:43,197 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-13 01:10:43,197 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-13 01:10:43,221 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-13 01:10:43,261 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbb2d23d-090d-4c8d-95d0-199a934d8f42/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (25)] Forceful destruction successful, exit code 0 [2021-10-13 01:10:43,261 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 01:10:43,261 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbb2d23d-090d-4c8d-95d0-199a934d8f42/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 01:10:43,263 INFO L229 MonitoredProcess]: Starting monitored process 26 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbb2d23d-090d-4c8d-95d0-199a934d8f42/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 01:10:43,265 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 [2021-10-13 01:10:43,275 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-13 01:10:43,276 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-13 01:10:43,276 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-13 01:10:43,276 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-13 01:10:43,279 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-13 01:10:43,279 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-13 01:10:43,285 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbb2d23d-090d-4c8d-95d0-199a934d8f42/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (26)] Waiting until timeout for monitored process [2021-10-13 01:10:43,303 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-13 01:10:43,345 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbb2d23d-090d-4c8d-95d0-199a934d8f42/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (26)] Forceful destruction successful, exit code 0 [2021-10-13 01:10:43,345 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 01:10:43,346 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbb2d23d-090d-4c8d-95d0-199a934d8f42/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 01:10:43,350 INFO L229 MonitoredProcess]: Starting monitored process 27 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbb2d23d-090d-4c8d-95d0-199a934d8f42/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 01:10:43,355 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 [2021-10-13 01:10:43,365 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-13 01:10:43,366 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-13 01:10:43,366 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-13 01:10:43,366 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-13 01:10:43,375 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-13 01:10:43,376 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-13 01:10:43,382 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbb2d23d-090d-4c8d-95d0-199a934d8f42/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (27)] Waiting until timeout for monitored process [2021-10-13 01:10:43,397 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2021-10-13 01:10:43,472 INFO L443 ModelExtractionUtils]: Simplification made 12 calls to the SMT solver. [2021-10-13 01:10:43,472 INFO L444 ModelExtractionUtils]: 13 out of 25 variables were initially zero. Simplification set additionally 9 variables to zero. [2021-10-13 01:10:43,472 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 01:10:43,472 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbb2d23d-090d-4c8d-95d0-199a934d8f42/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 01:10:43,487 INFO L229 MonitoredProcess]: Starting monitored process 28 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbb2d23d-090d-4c8d-95d0-199a934d8f42/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 01:10:43,557 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2021-10-13 01:10:43,567 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbb2d23d-090d-4c8d-95d0-199a934d8f42/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (28)] Waiting until timeout for monitored process [2021-10-13 01:10:43,590 INFO L438 nArgumentSynthesizer]: Removed 2 redundant supporting invariants from a total of 2. [2021-10-13 01:10:43,590 INFO L513 LassoAnalysis]: Proved termination. [2021-10-13 01:10:43,590 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~j~0) = 2*ULTIMATE.start_main_~j~0 + 1 Supporting invariants [] [2021-10-13 01:10:43,649 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbb2d23d-090d-4c8d-95d0-199a934d8f42/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (27)] Forceful destruction successful, exit code 0 [2021-10-13 01:10:43,658 INFO L297 tatePredicateManager]: 4 out of 4 supporting invariants were superfluous and have been removed [2021-10-13 01:10:43,673 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 01:10:43,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 01:10:43,691 INFO L263 TraceCheckSpWp]: Trace formula consists of 62 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-13 01:10:43,694 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 01:10:43,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 01:10:43,748 INFO L263 TraceCheckSpWp]: Trace formula consists of 13 conjuncts, 4 conjunts are in the unsatisfiable core [2021-10-13 01:10:43,749 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 01:10:43,771 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 01:10:43,772 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 [2021-10-13 01:10:43,772 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 19 states and 25 transitions. cyclomatic complexity: 9 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) [2021-10-13 01:10:43,789 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 19 states and 25 transitions. cyclomatic complexity: 9. 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) Result 23 states and 31 transitions. Complement of second has 5 states. [2021-10-13 01:10:43,790 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 3 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2021-10-13 01:10:43,790 INFO L82 GeneralOperation]: Start removeUnreachable. 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) [2021-10-13 01:10:43,791 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 16 transitions. [2021-10-13 01:10:43,791 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 16 transitions. Stem has 15 letters. Loop has 2 letters. [2021-10-13 01:10:43,791 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-13 01:10:43,791 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 16 transitions. Stem has 17 letters. Loop has 2 letters. [2021-10-13 01:10:43,792 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-13 01:10:43,792 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 16 transitions. Stem has 15 letters. Loop has 4 letters. [2021-10-13 01:10:43,792 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-13 01:10:43,792 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 23 states and 31 transitions. [2021-10-13 01:10:43,793 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2021-10-13 01:10:43,794 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 23 states to 23 states and 31 transitions. [2021-10-13 01:10:43,794 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 12 [2021-10-13 01:10:43,795 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 13 [2021-10-13 01:10:43,795 INFO L73 IsDeterministic]: Start isDeterministic. Operand 23 states and 31 transitions. [2021-10-13 01:10:43,795 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2021-10-13 01:10:43,795 INFO L681 BuchiCegarLoop]: Abstraction has 23 states and 31 transitions. [2021-10-13 01:10:43,795 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23 states and 31 transitions. [2021-10-13 01:10:43,797 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23 to 23. [2021-10-13 01:10:43,797 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23 states, 23 states have (on average 1.3478260869565217) internal successors, (31), 22 states have internal predecessors, (31), 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) [2021-10-13 01:10:43,798 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 23 states and 31 transitions. [2021-10-13 01:10:43,798 INFO L704 BuchiCegarLoop]: Abstraction has 23 states and 31 transitions. [2021-10-13 01:10:43,799 INFO L587 BuchiCegarLoop]: Abstraction has 23 states and 31 transitions. [2021-10-13 01:10:43,799 INFO L425 BuchiCegarLoop]: ======== Iteration 6============ [2021-10-13 01:10:43,799 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 23 states and 31 transitions. [2021-10-13 01:10:43,799 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2021-10-13 01:10:43,800 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-13 01:10:43,800 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-13 01:10:43,801 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 01:10:43,801 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2021-10-13 01:10:43,801 INFO L791 eck$LassoCheckResult]: Stem: 488#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier; 489#L-1 havoc main_#res;havoc main_#t~nondet205, main_#t~malloc206.base, main_#t~malloc206.offset, main_#t~nondet208, main_#t~mem209, main_#t~post207, main_#t~mem210, main_#t~post211, main_#t~post212, main_~i~0, main_~j~0, main_~length~0, main_~arr~0.base, main_~arr~0.offset;havoc main_~i~0;havoc main_~j~0;main_~length~0 := main_#t~nondet205;havoc main_#t~nondet205; 499#L367 assume !(main_~length~0 < 1); 490#L367-2 call main_#t~malloc206.base, main_#t~malloc206.offset := #Ultimate.allocOnStack(4 * main_~length~0);main_~arr~0.base, main_~arr~0.offset := main_#t~malloc206.base, main_#t~malloc206.offset; 491#L369 assume !(main_~arr~0.base == 0 && main_~arr~0.offset == 0);main_~i~0 := 0; 492#L370-3 assume !!(main_~i~0 < main_~length~0);call write~int(main_#t~nondet208, main_~arr~0.base, main_~arr~0.offset + 4 * main_~i~0, 4);havoc main_#t~nondet208;call main_#t~mem209 := read~int(main_~arr~0.base, main_~arr~0.offset + 4 * main_~i~0, 4); 500#L372 assume !(main_#t~mem209 < 0);havoc main_#t~mem209; 505#L370-2 main_#t~post207 := main_~i~0;main_~i~0 := 1 + main_#t~post207;havoc main_#t~post207; 501#L370-3 assume !!(main_~i~0 < main_~length~0);call write~int(main_#t~nondet208, main_~arr~0.base, main_~arr~0.offset + 4 * main_~i~0, 4);havoc main_#t~nondet208;call main_#t~mem209 := read~int(main_~arr~0.base, main_~arr~0.offset + 4 * main_~i~0, 4); 502#L372 assume !(main_#t~mem209 < 0);havoc main_#t~mem209; 504#L370-2 main_#t~post207 := main_~i~0;main_~i~0 := 1 + main_#t~post207;havoc main_#t~post207; 506#L370-3 assume !(main_~i~0 < main_~length~0); 497#L370-4 main_~j~0 := 0; 498#L378-2 assume !!(0 <= main_~j~0 && main_~j~0 < main_~length~0);call main_#t~mem210 := read~int(main_~arr~0.base, main_~arr~0.offset + 4 * main_~j~0, 4); 508#L378 assume !(main_#t~mem210 > 0);havoc main_#t~mem210;main_#t~post212 := main_~j~0;main_~j~0 := 1 + main_#t~post212;havoc main_#t~post212; 507#L378-2 assume !!(0 <= main_~j~0 && main_~j~0 < main_~length~0);call main_#t~mem210 := read~int(main_~arr~0.base, main_~arr~0.offset + 4 * main_~j~0, 4); 493#L378 assume !(main_#t~mem210 > 0);havoc main_#t~mem210;main_#t~post212 := main_~j~0;main_~j~0 := 1 + main_#t~post212;havoc main_#t~post212; 494#L378-2 [2021-10-13 01:10:43,801 INFO L793 eck$LassoCheckResult]: Loop: 494#L378-2 assume !!(0 <= main_~j~0 && main_~j~0 < main_~length~0);call main_#t~mem210 := read~int(main_~arr~0.base, main_~arr~0.offset + 4 * main_~j~0, 4); 503#L378 assume main_#t~mem210 > 0;havoc main_#t~mem210;main_#t~post211 := main_~j~0;main_~j~0 := main_#t~post211 - 1;havoc main_#t~post211; 494#L378-2 [2021-10-13 01:10:43,802 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 01:10:43,802 INFO L82 PathProgramCache]: Analyzing trace with hash -685992544, now seen corresponding path program 3 times [2021-10-13 01:10:43,802 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 01:10:43,802 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1996279688] [2021-10-13 01:10:43,803 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 01:10:43,803 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 01:10:43,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 01:10:43,820 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-13 01:10:43,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 01:10:43,850 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-13 01:10:43,854 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 01:10:43,854 INFO L82 PathProgramCache]: Analyzing trace with hash 2308, now seen corresponding path program 5 times [2021-10-13 01:10:43,855 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 01:10:43,855 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1952207848] [2021-10-13 01:10:43,855 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 01:10:43,855 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 01:10:43,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 01:10:43,862 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-13 01:10:43,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 01:10:43,868 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-13 01:10:43,872 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 01:10:43,873 INFO L82 PathProgramCache]: Analyzing trace with hash -2108837149, now seen corresponding path program 3 times [2021-10-13 01:10:43,873 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 01:10:43,873 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [626837251] [2021-10-13 01:10:43,873 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 01:10:43,873 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 01:10:43,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 01:10:43,972 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 3 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 01:10:43,973 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 01:10:43,973 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [626837251] [2021-10-13 01:10:43,973 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [626837251] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-13 01:10:43,973 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [19251025] [2021-10-13 01:10:43,973 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2021-10-13 01:10:43,973 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-13 01:10:43,973 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbb2d23d-090d-4c8d-95d0-199a934d8f42/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 01:10:43,974 INFO L229 MonitoredProcess]: Starting monitored process 29 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbb2d23d-090d-4c8d-95d0-199a934d8f42/bin/uautomizer-WNIpwEf4Nt/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-13 01:10:43,977 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbb2d23d-090d-4c8d-95d0-199a934d8f42/bin/uautomizer-WNIpwEf4Nt/z3 -smt2 -in SMTLIB2_COMPLIANT=true (29)] Waiting until timeout for monitored process [2021-10-13 01:10:44,038 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2021-10-13 01:10:44,039 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-13 01:10:44,040 INFO L263 TraceCheckSpWp]: Trace formula consists of 84 conjuncts, 8 conjunts are in the unsatisfiable core [2021-10-13 01:10:44,041 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 01:10:44,193 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 6 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 01:10:44,194 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [19251025] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-13 01:10:44,194 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-13 01:10:44,194 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9] total 13 [2021-10-13 01:10:44,194 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [770804057] [2021-10-13 01:10:44,246 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 01:10:44,249 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2021-10-13 01:10:44,250 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=115, Unknown=0, NotChecked=0, Total=156 [2021-10-13 01:10:44,250 INFO L87 Difference]: Start difference. First operand 23 states and 31 transitions. cyclomatic complexity: 12 Second operand has 13 states, 13 states have (on average 2.230769230769231) internal successors, (29), 13 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) [2021-10-13 01:10:44,373 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 01:10:44,373 INFO L93 Difference]: Finished difference Result 48 states and 65 transitions. [2021-10-13 01:10:44,373 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-10-13 01:10:44,374 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 48 states and 65 transitions. [2021-10-13 01:10:44,382 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 7 [2021-10-13 01:10:44,385 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 48 states to 46 states and 62 transitions. [2021-10-13 01:10:44,385 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 24 [2021-10-13 01:10:44,386 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 24 [2021-10-13 01:10:44,386 INFO L73 IsDeterministic]: Start isDeterministic. Operand 46 states and 62 transitions. [2021-10-13 01:10:44,386 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2021-10-13 01:10:44,386 INFO L681 BuchiCegarLoop]: Abstraction has 46 states and 62 transitions. [2021-10-13 01:10:44,387 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 46 states and 62 transitions. [2021-10-13 01:10:44,393 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 46 to 39. [2021-10-13 01:10:44,395 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 39 states, 39 states have (on average 1.358974358974359) internal successors, (53), 38 states have internal predecessors, (53), 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) [2021-10-13 01:10:44,397 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39 states to 39 states and 53 transitions. [2021-10-13 01:10:44,398 INFO L704 BuchiCegarLoop]: Abstraction has 39 states and 53 transitions. [2021-10-13 01:10:44,398 INFO L587 BuchiCegarLoop]: Abstraction has 39 states and 53 transitions. [2021-10-13 01:10:44,398 INFO L425 BuchiCegarLoop]: ======== Iteration 7============ [2021-10-13 01:10:44,398 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 39 states and 53 transitions. [2021-10-13 01:10:44,399 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 6 [2021-10-13 01:10:44,399 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-13 01:10:44,399 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-13 01:10:44,400 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 01:10:44,400 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [2, 1, 1] [2021-10-13 01:10:44,401 INFO L791 eck$LassoCheckResult]: Stem: 641#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier; 642#L-1 havoc main_#res;havoc main_#t~nondet205, main_#t~malloc206.base, main_#t~malloc206.offset, main_#t~nondet208, main_#t~mem209, main_#t~post207, main_#t~mem210, main_#t~post211, main_#t~post212, main_~i~0, main_~j~0, main_~length~0, main_~arr~0.base, main_~arr~0.offset;havoc main_~i~0;havoc main_~j~0;main_~length~0 := main_#t~nondet205;havoc main_#t~nondet205; 652#L367 assume !(main_~length~0 < 1); 643#L367-2 call main_#t~malloc206.base, main_#t~malloc206.offset := #Ultimate.allocOnStack(4 * main_~length~0);main_~arr~0.base, main_~arr~0.offset := main_#t~malloc206.base, main_#t~malloc206.offset; 644#L369 assume !(main_~arr~0.base == 0 && main_~arr~0.offset == 0);main_~i~0 := 0; 645#L370-3 assume !!(main_~i~0 < main_~length~0);call write~int(main_#t~nondet208, main_~arr~0.base, main_~arr~0.offset + 4 * main_~i~0, 4);havoc main_#t~nondet208;call main_#t~mem209 := read~int(main_~arr~0.base, main_~arr~0.offset + 4 * main_~i~0, 4); 653#L372 assume !(main_#t~mem209 < 0);havoc main_#t~mem209; 663#L370-2 main_#t~post207 := main_~i~0;main_~i~0 := 1 + main_#t~post207;havoc main_#t~post207; 654#L370-3 assume !!(main_~i~0 < main_~length~0);call write~int(main_#t~nondet208, main_~arr~0.base, main_~arr~0.offset + 4 * main_~i~0, 4);havoc main_#t~nondet208;call main_#t~mem209 := read~int(main_~arr~0.base, main_~arr~0.offset + 4 * main_~i~0, 4); 655#L372 assume !(main_#t~mem209 < 0);havoc main_#t~mem209; 661#L370-2 main_#t~post207 := main_~i~0;main_~i~0 := 1 + main_#t~post207;havoc main_#t~post207; 662#L370-3 assume !(main_~i~0 < main_~length~0); 646#L370-4 main_~j~0 := 0; 647#L378-2 assume !!(0 <= main_~j~0 && main_~j~0 < main_~length~0);call main_#t~mem210 := read~int(main_~arr~0.base, main_~arr~0.offset + 4 * main_~j~0, 4); 665#L378 assume !(main_#t~mem210 > 0);havoc main_#t~mem210;main_#t~post212 := main_~j~0;main_~j~0 := 1 + main_#t~post212;havoc main_#t~post212; 664#L378-2 assume !!(0 <= main_~j~0 && main_~j~0 < main_~length~0);call main_#t~mem210 := read~int(main_~arr~0.base, main_~arr~0.offset + 4 * main_~j~0, 4); 650#L378 assume main_#t~mem210 > 0;havoc main_#t~mem210;main_#t~post211 := main_~j~0;main_~j~0 := main_#t~post211 - 1;havoc main_#t~post211; 651#L378-2 assume !!(0 <= main_~j~0 && main_~j~0 < main_~length~0);call main_#t~mem210 := read~int(main_~arr~0.base, main_~arr~0.offset + 4 * main_~j~0, 4); 658#L378 assume !(main_#t~mem210 > 0);havoc main_#t~mem210;main_#t~post212 := main_~j~0;main_~j~0 := 1 + main_#t~post212;havoc main_#t~post212; 674#L378-2 [2021-10-13 01:10:44,401 INFO L793 eck$LassoCheckResult]: Loop: 674#L378-2 assume !!(0 <= main_~j~0 && main_~j~0 < main_~length~0);call main_#t~mem210 := read~int(main_~arr~0.base, main_~arr~0.offset + 4 * main_~j~0, 4); 670#L378 assume main_#t~mem210 > 0;havoc main_#t~mem210;main_#t~post211 := main_~j~0;main_~j~0 := main_#t~post211 - 1;havoc main_#t~post211; 656#L378-2 assume !!(0 <= main_~j~0 && main_~j~0 < main_~length~0);call main_#t~mem210 := read~int(main_~arr~0.base, main_~arr~0.offset + 4 * main_~j~0, 4); 657#L378 assume !(main_#t~mem210 > 0);havoc main_#t~mem210;main_#t~post212 := main_~j~0;main_~j~0 := 1 + main_#t~post212;havoc main_#t~post212; 674#L378-2 [2021-10-13 01:10:44,401 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 01:10:44,401 INFO L82 PathProgramCache]: Analyzing trace with hash -2108839069, now seen corresponding path program 4 times [2021-10-13 01:10:44,402 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 01:10:44,402 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1140717935] [2021-10-13 01:10:44,402 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 01:10:44,402 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 01:10:44,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 01:10:44,440 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-13 01:10:44,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 01:10:44,473 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-13 01:10:44,474 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 01:10:44,474 INFO L82 PathProgramCache]: Analyzing trace with hash 2219337, now seen corresponding path program 1 times [2021-10-13 01:10:44,474 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 01:10:44,474 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1250380383] [2021-10-13 01:10:44,474 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 01:10:44,475 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 01:10:44,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 01:10:44,486 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-13 01:10:44,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 01:10:44,496 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-13 01:10:44,497 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 01:10:44,497 INFO L82 PathProgramCache]: Analyzing trace with hash 50792363, now seen corresponding path program 5 times [2021-10-13 01:10:44,498 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 01:10:44,498 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1964155164] [2021-10-13 01:10:44,498 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 01:10:44,498 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 01:10:44,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 01:10:44,538 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-13 01:10:44,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 01:10:44,584 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-13 01:10:44,724 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbb2d23d-090d-4c8d-95d0-199a934d8f42/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (28)] Forceful destruction successful, exit code 0 [2021-10-13 01:10:45,254 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 13.10 01:10:45 BoogieIcfgContainer [2021-10-13 01:10:45,256 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2021-10-13 01:10:45,256 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-13 01:10:45,256 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-13 01:10:45,257 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-13 01:10:45,257 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 01:10:37" (3/4) ... [2021-10-13 01:10:45,260 INFO L134 WitnessPrinter]: Generating witness for non-termination counterexample [2021-10-13 01:10:45,315 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbb2d23d-090d-4c8d-95d0-199a934d8f42/bin/uautomizer-WNIpwEf4Nt/witness.graphml [2021-10-13 01:10:45,315 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-13 01:10:45,317 INFO L168 Benchmark]: Toolchain (without parser) took 9309.86 ms. Allocated memory was 79.7 MB in the beginning and 144.7 MB in the end (delta: 65.0 MB). Free memory was 42.2 MB in the beginning and 78.0 MB in the end (delta: -35.8 MB). Peak memory consumption was 28.7 MB. Max. memory is 16.1 GB. [2021-10-13 01:10:45,317 INFO L168 Benchmark]: CDTParser took 0.28 ms. Allocated memory is still 79.7 MB. Free memory was 59.5 MB in the beginning and 59.4 MB in the end (delta: 46.2 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-13 01:10:45,318 INFO L168 Benchmark]: CACSL2BoogieTranslator took 552.40 ms. Allocated memory was 79.7 MB in the beginning and 119.5 MB in the end (delta: 39.8 MB). Free memory was 42.0 MB in the beginning and 89.1 MB in the end (delta: -47.1 MB). Peak memory consumption was 6.3 MB. Max. memory is 16.1 GB. [2021-10-13 01:10:45,318 INFO L168 Benchmark]: Boogie Procedure Inliner took 76.44 ms. Allocated memory is still 119.5 MB. Free memory was 89.1 MB in the beginning and 87.3 MB in the end (delta: 1.8 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-13 01:10:45,319 INFO L168 Benchmark]: Boogie Preprocessor took 56.30 ms. Allocated memory is still 119.5 MB. Free memory was 87.3 MB in the beginning and 85.9 MB in the end (delta: 1.4 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-13 01:10:45,319 INFO L168 Benchmark]: RCFGBuilder took 327.98 ms. Allocated memory is still 119.5 MB. Free memory was 85.9 MB in the beginning and 74.7 MB in the end (delta: 11.2 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2021-10-13 01:10:45,320 INFO L168 Benchmark]: BuchiAutomizer took 8231.19 ms. Allocated memory was 119.5 MB in the beginning and 144.7 MB in the end (delta: 25.2 MB). Free memory was 74.7 MB in the beginning and 80.0 MB in the end (delta: -5.3 MB). Peak memory consumption was 71.8 MB. Max. memory is 16.1 GB. [2021-10-13 01:10:45,320 INFO L168 Benchmark]: Witness Printer took 58.81 ms. Allocated memory is still 144.7 MB. Free memory was 80.0 MB in the beginning and 78.0 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-13 01:10:45,322 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.28 ms. Allocated memory is still 79.7 MB. Free memory was 59.5 MB in the beginning and 59.4 MB in the end (delta: 46.2 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 552.40 ms. Allocated memory was 79.7 MB in the beginning and 119.5 MB in the end (delta: 39.8 MB). Free memory was 42.0 MB in the beginning and 89.1 MB in the end (delta: -47.1 MB). Peak memory consumption was 6.3 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 76.44 ms. Allocated memory is still 119.5 MB. Free memory was 89.1 MB in the beginning and 87.3 MB in the end (delta: 1.8 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 56.30 ms. Allocated memory is still 119.5 MB. Free memory was 87.3 MB in the beginning and 85.9 MB in the end (delta: 1.4 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 327.98 ms. Allocated memory is still 119.5 MB. Free memory was 85.9 MB in the beginning and 74.7 MB in the end (delta: 11.2 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * BuchiAutomizer took 8231.19 ms. Allocated memory was 119.5 MB in the beginning and 144.7 MB in the end (delta: 25.2 MB). Free memory was 74.7 MB in the beginning and 80.0 MB in the end (delta: -5.3 MB). Peak memory consumption was 71.8 MB. Max. memory is 16.1 GB. * Witness Printer took 58.81 ms. Allocated memory is still 144.7 MB. Free memory was 80.0 MB in the beginning and 78.0 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 6 terminating modules (3 trivial, 3 deterministic, 0 nondeterministic) and one nonterminating remainder module.One deterministic module has affine ranking function length + -1 * i and consists of 5 locations. One deterministic module has affine ranking function 2 * j + 1 and consists of 3 locations. One deterministic module has affine ranking function 2 * j + 1 and consists of 3 locations. 3 modules have a trivial ranking function, the largest among these consists of 13 locations. The remainder module has 39 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 8.1s and 7 iterations. TraceHistogramMax:3. Analysis of lassos took 7.2s. Construction of modules took 0.1s. Büchi inclusion checks took 0.5s. Highest rank in rank-based complementation 3. Minimization of det autom 2. Minimization of nondet autom 4. Automata minimization 38.8ms AutomataMinimizationTime, 6 MinimizatonAttempts, 11 StatesRemovedByMinimization, 3 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 39 states and ocurred in iteration 6. Nontrivial modules had stage [3, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 65 SDtfs, 109 SDslu, 69 SDs, 0 SdLazy, 164 SolverSat, 37 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 165.9ms Time LassoAnalysisResults: nont1 unkn0 SFLI0 SFLT0 conc2 concLT0 SILN0 SILU1 SILI0 SILT0 lasso3 LassoPreprocessingBenchmarks: Lassos: inital130 mio100 ax100 hnf99 lsp94 ukn80 mio100 lsp63 div100 bol100 ite100 ukn100 eq165 hnf92 smp95 dnf100 smp100 tf100 neg100 sie102 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 37ms 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: Nontermination possible Buchi Automizer proved that your program is nonterminating for some inputs - FixpointNonTerminationResult [Line: 377]: Nontermination argument in form of an infinite program execution. Nontermination argument in form of an infinite execution State at position 0 is {NULL=1} State at position 1 is {NULL=0, \result=0, NULL=1, arr=2, arr=0, i=2, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@44ebced3=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@755fc001=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@213633f6=0, length=2, org.eclipse.cdt.internal.core.dom.parser.c.CASTArraySubscriptExpression@5125e07f=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@213633f6=2, j=1, NULL=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTUnaryExpression@2ba6e744=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTArraySubscriptExpression@5fe3a308=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTUnaryExpression@2c7c97f8=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTUnaryExpression@54d4da30=0} - StatisticsResult: NonterminationArgumentStatistics Fixpoint - NonterminatingLassoResult [Line: 377]: Nonterminating execution Found a nonterminating execution for the following lasso shaped sequence of statements. Stem: [L365] int i, j; [L366] int length = __VERIFIER_nondet_int(); [L367] COND FALSE !(length < 1) [L368] int *arr = __builtin_alloca(length*sizeof(int)); [L369] COND FALSE !(!arr) [L370] i=0 [L370] COND TRUE i 0) [L381] j++ [L377] COND TRUE 0 <= j && j < length [L378] EXPR arr[j] [L378] COND TRUE arr[j] > 0 [L379] j-- [L377] COND TRUE 0 <= j && j < length [L378] EXPR arr[j] [L378] COND FALSE !(arr[j] > 0) [L381] j++ Loop: [L377] COND TRUE 0 <= j && j < length [L378] EXPR arr[j] [L378] COND TRUE arr[j] > 0 [L379] j-- [L377] COND TRUE 0 <= j && j < length [L378] EXPR arr[j] [L378] COND FALSE !(arr[j] > 0) [L381] j++ End of lasso representation. RESULT: Ultimate proved your program to be incorrect! [2021-10-13 01:10:45,388 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbb2d23d-090d-4c8d-95d0-199a934d8f42/bin/uautomizer-WNIpwEf4Nt/z3 -smt2 -in SMTLIB2_COMPLIANT=true (29)] Forceful destruction successful, exit code 0 [2021-10-13 01:10:45,602 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbb2d23d-090d-4c8d-95d0-199a934d8f42/bin/uautomizer-WNIpwEf4Nt/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Forceful destruction successful, exit code 0 [2021-10-13 01:10:45,786 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbb2d23d-090d-4c8d-95d0-199a934d8f42/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Ended with exit code 0 Received shutdown request...