./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/termination-memory-linkedlists/ll_append-alloca-2.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 839c364b Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0da695f-68a6-4f6d-a2be-191a66da1d46/bin/uautomizer-DrprNOufMa/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0da695f-68a6-4f6d-a2be-191a66da1d46/bin/uautomizer-DrprNOufMa/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0da695f-68a6-4f6d-a2be-191a66da1d46/bin/uautomizer-DrprNOufMa/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0da695f-68a6-4f6d-a2be-191a66da1d46/bin/uautomizer-DrprNOufMa/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/termination-memory-linkedlists/ll_append-alloca-2.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0da695f-68a6-4f6d-a2be-191a66da1d46/bin/uautomizer-DrprNOufMa/config/svcomp-Termination-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0da695f-68a6-4f6d-a2be-191a66da1d46/bin/uautomizer-DrprNOufMa --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 a94e514ac338898e2e1e54a42b19ae4490ac5c412319209fc14736a6de9b7386 --- Real Ultimate output --- This is Ultimate 0.2.2-hotfix-svcomp22-839c364 [2021-12-07 01:43:31,523 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-12-07 01:43:31,525 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-12-07 01:43:31,546 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-12-07 01:43:31,547 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-12-07 01:43:31,548 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-12-07 01:43:31,549 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-12-07 01:43:31,550 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-12-07 01:43:31,552 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-12-07 01:43:31,553 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-12-07 01:43:31,554 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-12-07 01:43:31,555 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-12-07 01:43:31,555 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-12-07 01:43:31,556 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-12-07 01:43:31,557 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-12-07 01:43:31,558 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-12-07 01:43:31,559 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-12-07 01:43:31,560 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-12-07 01:43:31,561 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-12-07 01:43:31,563 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-12-07 01:43:31,564 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-12-07 01:43:31,565 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-12-07 01:43:31,566 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-12-07 01:43:31,567 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-12-07 01:43:31,569 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-12-07 01:43:31,569 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-12-07 01:43:31,570 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-12-07 01:43:31,571 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-12-07 01:43:31,571 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-12-07 01:43:31,572 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-12-07 01:43:31,572 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-12-07 01:43:31,573 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-12-07 01:43:31,573 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-12-07 01:43:31,574 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-12-07 01:43:31,575 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-12-07 01:43:31,575 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-12-07 01:43:31,575 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-12-07 01:43:31,575 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-12-07 01:43:31,576 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-12-07 01:43:31,576 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-12-07 01:43:31,577 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-12-07 01:43:31,577 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0da695f-68a6-4f6d-a2be-191a66da1d46/bin/uautomizer-DrprNOufMa/config/svcomp-Termination-64bit-Automizer_Default.epf [2021-12-07 01:43:31,594 INFO L113 SettingsManager]: Loading preferences was successful [2021-12-07 01:43:31,594 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-12-07 01:43:31,594 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-12-07 01:43:31,594 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-12-07 01:43:31,595 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-12-07 01:43:31,595 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-12-07 01:43:31,596 INFO L138 SettingsManager]: * Use SBE=true [2021-12-07 01:43:31,596 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2021-12-07 01:43:31,596 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2021-12-07 01:43:31,596 INFO L138 SettingsManager]: * Use old map elimination=false [2021-12-07 01:43:31,596 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2021-12-07 01:43:31,596 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2021-12-07 01:43:31,596 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2021-12-07 01:43:31,597 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-12-07 01:43:31,597 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-12-07 01:43:31,597 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-12-07 01:43:31,597 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-12-07 01:43:31,597 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2021-12-07 01:43:31,597 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2021-12-07 01:43:31,597 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2021-12-07 01:43:31,597 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-12-07 01:43:31,598 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2021-12-07 01:43:31,598 INFO L138 SettingsManager]: * Use constant arrays=true [2021-12-07 01:43:31,598 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2021-12-07 01:43:31,598 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-12-07 01:43:31,598 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-12-07 01:43:31,598 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-12-07 01:43:31,599 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-12-07 01:43:31,599 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-12-07 01:43:31,599 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2021-12-07 01:43:31,600 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_f0da695f-68a6-4f6d-a2be-191a66da1d46/bin/uautomizer-DrprNOufMa/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0da695f-68a6-4f6d-a2be-191a66da1d46/bin/uautomizer-DrprNOufMa Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> a94e514ac338898e2e1e54a42b19ae4490ac5c412319209fc14736a6de9b7386 [2021-12-07 01:43:31,779 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-12-07 01:43:31,795 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-12-07 01:43:31,797 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-12-07 01:43:31,798 INFO L271 PluginConnector]: Initializing CDTParser... [2021-12-07 01:43:31,798 INFO L275 PluginConnector]: CDTParser initialized [2021-12-07 01:43:31,799 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0da695f-68a6-4f6d-a2be-191a66da1d46/bin/uautomizer-DrprNOufMa/../../sv-benchmarks/c/termination-memory-linkedlists/ll_append-alloca-2.i [2021-12-07 01:43:31,842 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0da695f-68a6-4f6d-a2be-191a66da1d46/bin/uautomizer-DrprNOufMa/data/7fd3fc4c3/576827b2ae5d4322b9663e1053632096/FLAGc9851c284 [2021-12-07 01:43:32,245 INFO L306 CDTParser]: Found 1 translation units. [2021-12-07 01:43:32,245 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0da695f-68a6-4f6d-a2be-191a66da1d46/sv-benchmarks/c/termination-memory-linkedlists/ll_append-alloca-2.i [2021-12-07 01:43:32,255 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0da695f-68a6-4f6d-a2be-191a66da1d46/bin/uautomizer-DrprNOufMa/data/7fd3fc4c3/576827b2ae5d4322b9663e1053632096/FLAGc9851c284 [2021-12-07 01:43:32,264 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0da695f-68a6-4f6d-a2be-191a66da1d46/bin/uautomizer-DrprNOufMa/data/7fd3fc4c3/576827b2ae5d4322b9663e1053632096 [2021-12-07 01:43:32,265 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-12-07 01:43:32,266 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-12-07 01:43:32,268 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-12-07 01:43:32,268 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-12-07 01:43:32,270 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-12-07 01:43:32,271 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.12 01:43:32" (1/1) ... [2021-12-07 01:43:32,272 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2be4c272 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 01:43:32, skipping insertion in model container [2021-12-07 01:43:32,272 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.12 01:43:32" (1/1) ... [2021-12-07 01:43:32,277 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-12-07 01:43:32,301 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-12-07 01:43:32,474 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-07 01:43:32,480 INFO L203 MainTranslator]: Completed pre-run [2021-12-07 01:43:32,529 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-07 01:43:32,554 INFO L208 MainTranslator]: Completed translation [2021-12-07 01:43:32,554 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 01:43:32 WrapperNode [2021-12-07 01:43:32,554 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-12-07 01:43:32,555 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-12-07 01:43:32,555 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-12-07 01:43:32,556 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-12-07 01:43:32,563 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 01:43:32" (1/1) ... [2021-12-07 01:43:32,575 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 01:43:32" (1/1) ... [2021-12-07 01:43:32,592 INFO L137 Inliner]: procedures = 115, calls = 14, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 40 [2021-12-07 01:43:32,592 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-12-07 01:43:32,593 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-12-07 01:43:32,593 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-12-07 01:43:32,593 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-12-07 01:43:32,598 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 01:43:32" (1/1) ... [2021-12-07 01:43:32,598 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 01:43:32" (1/1) ... [2021-12-07 01:43:32,601 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 01:43:32" (1/1) ... [2021-12-07 01:43:32,601 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 01:43:32" (1/1) ... [2021-12-07 01:43:32,605 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 01:43:32" (1/1) ... [2021-12-07 01:43:32,608 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 01:43:32" (1/1) ... [2021-12-07 01:43:32,609 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 01:43:32" (1/1) ... [2021-12-07 01:43:32,611 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-12-07 01:43:32,611 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-12-07 01:43:32,612 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-12-07 01:43:32,612 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-12-07 01:43:32,612 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 01:43:32" (1/1) ... [2021-12-07 01:43:32,619 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-07 01:43:32,626 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0da695f-68a6-4f6d-a2be-191a66da1d46/bin/uautomizer-DrprNOufMa/z3 [2021-12-07 01:43:32,636 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0da695f-68a6-4f6d-a2be-191a66da1d46/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-07 01:43:32,638 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0da695f-68a6-4f6d-a2be-191a66da1d46/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2021-12-07 01:43:32,666 INFO L130 BoogieDeclarations]: Found specification of procedure new_ll [2021-12-07 01:43:32,666 INFO L138 BoogieDeclarations]: Found implementation of procedure new_ll [2021-12-07 01:43:32,666 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-12-07 01:43:32,666 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-12-07 01:43:32,666 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-12-07 01:43:32,666 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-12-07 01:43:32,666 INFO L130 BoogieDeclarations]: Found specification of procedure length [2021-12-07 01:43:32,666 INFO L138 BoogieDeclarations]: Found implementation of procedure length [2021-12-07 01:43:32,666 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-12-07 01:43:32,667 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-12-07 01:43:32,734 INFO L236 CfgBuilder]: Building ICFG [2021-12-07 01:43:32,736 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-12-07 01:43:32,869 INFO L277 CfgBuilder]: Performing block encoding [2021-12-07 01:43:32,874 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-12-07 01:43:32,874 INFO L301 CfgBuilder]: Removed 1 assume(true) statements. [2021-12-07 01:43:32,876 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 01:43:32 BoogieIcfgContainer [2021-12-07 01:43:32,876 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-12-07 01:43:32,876 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2021-12-07 01:43:32,877 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2021-12-07 01:43:32,879 INFO L275 PluginConnector]: BuchiAutomizer initialized [2021-12-07 01:43:32,880 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-12-07 01:43:32,880 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 07.12 01:43:32" (1/3) ... [2021-12-07 01:43:32,881 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@2c6e8f9a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 07.12 01:43:32, skipping insertion in model container [2021-12-07 01:43:32,881 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-12-07 01:43:32,881 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 01:43:32" (2/3) ... [2021-12-07 01:43:32,881 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@2c6e8f9a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 07.12 01:43:32, skipping insertion in model container [2021-12-07 01:43:32,881 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-12-07 01:43:32,881 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 01:43:32" (3/3) ... [2021-12-07 01:43:32,882 INFO L388 chiAutomizerObserver]: Analyzing ICFG ll_append-alloca-2.i [2021-12-07 01:43:32,914 INFO L359 BuchiCegarLoop]: Interprodecural is true [2021-12-07 01:43:32,914 INFO L360 BuchiCegarLoop]: Hoare is false [2021-12-07 01:43:32,914 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2021-12-07 01:43:32,914 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2021-12-07 01:43:32,915 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-12-07 01:43:32,915 INFO L364 BuchiCegarLoop]: Difference is false [2021-12-07 01:43:32,915 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-12-07 01:43:32,915 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2021-12-07 01:43:32,926 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 27 states, 20 states have (on average 1.3) internal successors, (26), 20 states have internal predecessors, (26), 4 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2021-12-07 01:43:32,946 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 8 [2021-12-07 01:43:32,946 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-12-07 01:43:32,946 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-12-07 01:43:32,953 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1] [2021-12-07 01:43:32,953 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2021-12-07 01:43:32,953 INFO L425 BuchiCegarLoop]: ======== Iteration 1============ [2021-12-07 01:43:32,954 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 27 states, 20 states have (on average 1.3) internal successors, (26), 20 states have internal predecessors, (26), 4 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2021-12-07 01:43:32,957 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 8 [2021-12-07 01:43:32,957 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-12-07 01:43:32,957 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-12-07 01:43:32,958 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1] [2021-12-07 01:43:32,958 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2021-12-07 01:43:32,963 INFO L791 eck$LassoCheckResult]: Stem: 17#ULTIMATE.startENTRYtrue assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier; 8#L-1true assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet8#1, main_#t~ret9#1.base, main_#t~ret9#1.offset, main_#t~ret10#1.base, main_#t~ret10#1.offset, main_#t~ret11#1, main_~n~0#1, main_~x~0#1.base, main_~x~0#1.offset, main_~y~0#1.base, main_~y~0#1.offset, main_~y_length~0#1;main_~n~0#1 := main_#t~nondet8#1;havoc main_#t~nondet8#1; 15#L574true assume !(main_~n~0#1 < 1); 27#L577true call main_#t~ret9#1.base, main_#t~ret9#1.offset := new_ll(main_~n~0#1);< 14#new_llENTRYtrue [2021-12-07 01:43:32,963 INFO L793 eck$LassoCheckResult]: Loop: 14#new_llENTRYtrue ~n := #in~n; 21#L548true assume !(0 == ~n);call #t~malloc2.base, #t~malloc2.offset := #Ultimate.allocOnHeap(12);~head~0.base, ~head~0.offset := #t~malloc2.base, #t~malloc2.offset;havoc #t~malloc2.base, #t~malloc2.offset;call write~int(~n, ~head~0.base, ~head~0.offset, 4); 16#L552true call #t~ret3.base, #t~ret3.offset := new_ll(~n - 1);< 14#new_llENTRYtrue [2021-12-07 01:43:32,968 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-07 01:43:32,968 INFO L85 PathProgramCache]: Analyzing trace with hash 1418244, now seen corresponding path program 1 times [2021-12-07 01:43:32,975 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-07 01:43:32,976 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [266617797] [2021-12-07 01:43:32,976 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-07 01:43:32,977 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-07 01:43:33,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-07 01:43:33,050 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-07 01:43:33,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-07 01:43:33,075 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-07 01:43:33,077 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-07 01:43:33,077 INFO L85 PathProgramCache]: Analyzing trace with hash 29967, now seen corresponding path program 1 times [2021-12-07 01:43:33,077 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-07 01:43:33,078 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [369151753] [2021-12-07 01:43:33,078 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-07 01:43:33,078 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-07 01:43:33,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-07 01:43:33,103 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-07 01:43:33,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-07 01:43:33,122 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-07 01:43:33,123 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-07 01:43:33,124 INFO L85 PathProgramCache]: Analyzing trace with hash -698765780, now seen corresponding path program 1 times [2021-12-07 01:43:33,124 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-07 01:43:33,124 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1044162408] [2021-12-07 01:43:33,124 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-07 01:43:33,124 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-07 01:43:33,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-07 01:43:33,148 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-07 01:43:33,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-07 01:43:33,171 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-07 01:43:33,712 INFO L210 LassoAnalysis]: Preferences: [2021-12-07 01:43:33,713 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-12-07 01:43:33,713 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-12-07 01:43:33,713 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-12-07 01:43:33,713 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2021-12-07 01:43:33,713 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-07 01:43:33,714 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-12-07 01:43:33,714 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-12-07 01:43:33,714 INFO L133 ssoRankerPreferences]: Filename of dumped script: ll_append-alloca-2.i_Iteration1_Lasso [2021-12-07 01:43:33,714 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-12-07 01:43:33,714 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-12-07 01:43:33,732 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-07 01:43:33,737 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-07 01:43:33,738 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-07 01:43:33,740 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-07 01:43:33,741 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-07 01:43:33,742 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-07 01:43:33,743 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-07 01:43:33,744 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-07 01:43:33,745 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-07 01:43:33,746 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-07 01:43:33,747 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-07 01:43:33,748 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-07 01:43:33,750 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-07 01:43:33,751 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-07 01:43:33,752 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-07 01:43:33,754 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-07 01:43:33,755 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-07 01:43:33,756 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-07 01:43:33,758 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-07 01:43:33,759 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-07 01:43:33,760 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-07 01:43:33,762 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-07 01:43:33,763 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-07 01:43:33,764 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-07 01:43:33,766 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-07 01:43:33,768 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-07 01:43:33,769 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-07 01:43:33,770 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-07 01:43:33,772 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-07 01:43:33,773 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-07 01:43:33,798 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-07 01:43:33,799 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-07 01:43:33,800 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-07 01:43:33,801 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-07 01:43:33,802 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-07 01:43:33,803 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-07 01:43:33,804 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-07 01:43:33,805 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-07 01:43:33,808 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-07 01:43:33,809 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-07 01:43:33,810 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-07 01:43:33,811 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-07 01:43:33,812 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-07 01:43:33,813 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-07 01:43:33,923 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-12-07 01:43:33,926 INFO L490 LassoAnalysis]: Using template 'affine'. [2021-12-07 01:43:33,927 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-07 01:43:33,927 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0da695f-68a6-4f6d-a2be-191a66da1d46/bin/uautomizer-DrprNOufMa/z3 [2021-12-07 01:43:33,928 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0da695f-68a6-4f6d-a2be-191a66da1d46/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-07 01:43:33,929 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0da695f-68a6-4f6d-a2be-191a66da1d46/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Waiting until timeout for monitored process [2021-12-07 01:43:33,930 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 [2021-12-07 01:43:33,937 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-07 01:43:33,937 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-12-07 01:43:33,938 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-07 01:43:33,938 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-07 01:43:33,938 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-07 01:43:33,939 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-12-07 01:43:33,939 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-12-07 01:43:33,941 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-07 01:43:33,960 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0da695f-68a6-4f6d-a2be-191a66da1d46/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Forceful destruction successful, exit code 0 [2021-12-07 01:43:33,960 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-07 01:43:33,961 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0da695f-68a6-4f6d-a2be-191a66da1d46/bin/uautomizer-DrprNOufMa/z3 [2021-12-07 01:43:33,961 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0da695f-68a6-4f6d-a2be-191a66da1d46/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-07 01:43:33,962 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0da695f-68a6-4f6d-a2be-191a66da1d46/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Waiting until timeout for monitored process [2021-12-07 01:43:33,962 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-12-07 01:43:33,970 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-07 01:43:33,970 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-12-07 01:43:33,970 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-07 01:43:33,970 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-07 01:43:33,970 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-07 01:43:33,971 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-12-07 01:43:33,971 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-12-07 01:43:33,972 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-07 01:43:33,991 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0da695f-68a6-4f6d-a2be-191a66da1d46/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Ended with exit code 0 [2021-12-07 01:43:33,991 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-07 01:43:33,992 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0da695f-68a6-4f6d-a2be-191a66da1d46/bin/uautomizer-DrprNOufMa/z3 [2021-12-07 01:43:33,992 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0da695f-68a6-4f6d-a2be-191a66da1d46/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-07 01:43:33,993 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0da695f-68a6-4f6d-a2be-191a66da1d46/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Waiting until timeout for monitored process [2021-12-07 01:43:33,994 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 [2021-12-07 01:43:34,001 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-07 01:43:34,001 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-12-07 01:43:34,001 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-07 01:43:34,001 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-07 01:43:34,001 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-07 01:43:34,002 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-12-07 01:43:34,002 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-12-07 01:43:34,003 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-07 01:43:34,021 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0da695f-68a6-4f6d-a2be-191a66da1d46/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Ended with exit code 0 [2021-12-07 01:43:34,021 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-07 01:43:34,022 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0da695f-68a6-4f6d-a2be-191a66da1d46/bin/uautomizer-DrprNOufMa/z3 [2021-12-07 01:43:34,022 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0da695f-68a6-4f6d-a2be-191a66da1d46/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-07 01:43:34,023 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0da695f-68a6-4f6d-a2be-191a66da1d46/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Waiting until timeout for monitored process [2021-12-07 01:43:34,023 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 [2021-12-07 01:43:34,030 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-07 01:43:34,030 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-12-07 01:43:34,031 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-07 01:43:34,031 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-07 01:43:34,031 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-07 01:43:34,031 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-12-07 01:43:34,032 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-12-07 01:43:34,033 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-07 01:43:34,052 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0da695f-68a6-4f6d-a2be-191a66da1d46/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Ended with exit code 0 [2021-12-07 01:43:34,052 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-07 01:43:34,052 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0da695f-68a6-4f6d-a2be-191a66da1d46/bin/uautomizer-DrprNOufMa/z3 [2021-12-07 01:43:34,053 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0da695f-68a6-4f6d-a2be-191a66da1d46/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-07 01:43:34,054 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0da695f-68a6-4f6d-a2be-191a66da1d46/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Waiting until timeout for monitored process [2021-12-07 01:43:34,054 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 [2021-12-07 01:43:34,061 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-07 01:43:34,061 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-12-07 01:43:34,061 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-07 01:43:34,062 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-07 01:43:34,062 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-07 01:43:34,062 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-12-07 01:43:34,062 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-12-07 01:43:34,063 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-07 01:43:34,081 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0da695f-68a6-4f6d-a2be-191a66da1d46/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Ended with exit code 0 [2021-12-07 01:43:34,082 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-07 01:43:34,082 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0da695f-68a6-4f6d-a2be-191a66da1d46/bin/uautomizer-DrprNOufMa/z3 [2021-12-07 01:43:34,083 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0da695f-68a6-4f6d-a2be-191a66da1d46/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-07 01:43:34,083 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0da695f-68a6-4f6d-a2be-191a66da1d46/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Waiting until timeout for monitored process [2021-12-07 01:43:34,084 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 [2021-12-07 01:43:34,090 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-07 01:43:34,091 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-12-07 01:43:34,091 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-07 01:43:34,091 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-07 01:43:34,091 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-07 01:43:34,091 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-12-07 01:43:34,091 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-12-07 01:43:34,092 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-07 01:43:34,111 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0da695f-68a6-4f6d-a2be-191a66da1d46/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Ended with exit code 0 [2021-12-07 01:43:34,111 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-07 01:43:34,111 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0da695f-68a6-4f6d-a2be-191a66da1d46/bin/uautomizer-DrprNOufMa/z3 [2021-12-07 01:43:34,112 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0da695f-68a6-4f6d-a2be-191a66da1d46/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-07 01:43:34,113 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0da695f-68a6-4f6d-a2be-191a66da1d46/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Waiting until timeout for monitored process [2021-12-07 01:43:34,113 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 [2021-12-07 01:43:34,120 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-07 01:43:34,121 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-12-07 01:43:34,121 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-07 01:43:34,121 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-07 01:43:34,121 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-07 01:43:34,122 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-12-07 01:43:34,122 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-12-07 01:43:34,123 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-07 01:43:34,142 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0da695f-68a6-4f6d-a2be-191a66da1d46/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Ended with exit code 0 [2021-12-07 01:43:34,142 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-07 01:43:34,142 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0da695f-68a6-4f6d-a2be-191a66da1d46/bin/uautomizer-DrprNOufMa/z3 [2021-12-07 01:43:34,143 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0da695f-68a6-4f6d-a2be-191a66da1d46/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-07 01:43:34,144 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0da695f-68a6-4f6d-a2be-191a66da1d46/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Waiting until timeout for monitored process [2021-12-07 01:43:34,144 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 [2021-12-07 01:43:34,151 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-07 01:43:34,151 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-12-07 01:43:34,151 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-07 01:43:34,151 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-07 01:43:34,152 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-07 01:43:34,152 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-12-07 01:43:34,152 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-12-07 01:43:34,153 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-07 01:43:34,171 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0da695f-68a6-4f6d-a2be-191a66da1d46/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Ended with exit code 0 [2021-12-07 01:43:34,172 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-07 01:43:34,172 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0da695f-68a6-4f6d-a2be-191a66da1d46/bin/uautomizer-DrprNOufMa/z3 [2021-12-07 01:43:34,172 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0da695f-68a6-4f6d-a2be-191a66da1d46/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-07 01:43:34,173 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0da695f-68a6-4f6d-a2be-191a66da1d46/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Waiting until timeout for monitored process [2021-12-07 01:43:34,173 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 [2021-12-07 01:43:34,180 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-07 01:43:34,180 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-12-07 01:43:34,180 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-07 01:43:34,180 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-07 01:43:34,181 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-07 01:43:34,181 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-12-07 01:43:34,181 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-12-07 01:43:34,182 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-07 01:43:34,200 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0da695f-68a6-4f6d-a2be-191a66da1d46/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Ended with exit code 0 [2021-12-07 01:43:34,201 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-07 01:43:34,201 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0da695f-68a6-4f6d-a2be-191a66da1d46/bin/uautomizer-DrprNOufMa/z3 [2021-12-07 01:43:34,201 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0da695f-68a6-4f6d-a2be-191a66da1d46/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-07 01:43:34,202 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0da695f-68a6-4f6d-a2be-191a66da1d46/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Waiting until timeout for monitored process [2021-12-07 01:43:34,203 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 [2021-12-07 01:43:34,210 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-07 01:43:34,210 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-12-07 01:43:34,210 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-07 01:43:34,210 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-07 01:43:34,210 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-07 01:43:34,211 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-12-07 01:43:34,211 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-12-07 01:43:34,212 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-07 01:43:34,231 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0da695f-68a6-4f6d-a2be-191a66da1d46/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Ended with exit code 0 [2021-12-07 01:43:34,231 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-07 01:43:34,231 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0da695f-68a6-4f6d-a2be-191a66da1d46/bin/uautomizer-DrprNOufMa/z3 [2021-12-07 01:43:34,232 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0da695f-68a6-4f6d-a2be-191a66da1d46/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-07 01:43:34,233 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0da695f-68a6-4f6d-a2be-191a66da1d46/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Waiting until timeout for monitored process [2021-12-07 01:43:34,233 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 [2021-12-07 01:43:34,240 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-07 01:43:34,240 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-12-07 01:43:34,240 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-07 01:43:34,241 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-07 01:43:34,241 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-07 01:43:34,241 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-12-07 01:43:34,241 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-12-07 01:43:34,242 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-07 01:43:34,260 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0da695f-68a6-4f6d-a2be-191a66da1d46/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Ended with exit code 0 [2021-12-07 01:43:34,261 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-07 01:43:34,261 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0da695f-68a6-4f6d-a2be-191a66da1d46/bin/uautomizer-DrprNOufMa/z3 [2021-12-07 01:43:34,261 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0da695f-68a6-4f6d-a2be-191a66da1d46/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-07 01:43:34,263 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0da695f-68a6-4f6d-a2be-191a66da1d46/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Waiting until timeout for monitored process [2021-12-07 01:43:34,263 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 [2021-12-07 01:43:34,270 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-07 01:43:34,270 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-07 01:43:34,271 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-07 01:43:34,271 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-07 01:43:34,273 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-12-07 01:43:34,273 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-12-07 01:43:34,275 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-07 01:43:34,294 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0da695f-68a6-4f6d-a2be-191a66da1d46/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Forceful destruction successful, exit code 0 [2021-12-07 01:43:34,294 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-07 01:43:34,294 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0da695f-68a6-4f6d-a2be-191a66da1d46/bin/uautomizer-DrprNOufMa/z3 [2021-12-07 01:43:34,295 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0da695f-68a6-4f6d-a2be-191a66da1d46/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-07 01:43:34,295 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0da695f-68a6-4f6d-a2be-191a66da1d46/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (14)] Waiting until timeout for monitored process [2021-12-07 01:43:34,296 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-12-07 01:43:34,302 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-07 01:43:34,303 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-12-07 01:43:34,303 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-07 01:43:34,303 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-07 01:43:34,303 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-07 01:43:34,303 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-12-07 01:43:34,303 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-12-07 01:43:34,304 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-07 01:43:34,322 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0da695f-68a6-4f6d-a2be-191a66da1d46/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (14)] Forceful destruction successful, exit code 0 [2021-12-07 01:43:34,322 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-07 01:43:34,322 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0da695f-68a6-4f6d-a2be-191a66da1d46/bin/uautomizer-DrprNOufMa/z3 [2021-12-07 01:43:34,323 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0da695f-68a6-4f6d-a2be-191a66da1d46/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-07 01:43:34,324 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0da695f-68a6-4f6d-a2be-191a66da1d46/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (15)] Waiting until timeout for monitored process [2021-12-07 01:43:34,324 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 [2021-12-07 01:43:34,332 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-07 01:43:34,332 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-12-07 01:43:34,332 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-07 01:43:34,332 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-07 01:43:34,332 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-07 01:43:34,333 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-12-07 01:43:34,333 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-12-07 01:43:34,334 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-07 01:43:34,352 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0da695f-68a6-4f6d-a2be-191a66da1d46/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (15)] Ended with exit code 0 [2021-12-07 01:43:34,352 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-07 01:43:34,352 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0da695f-68a6-4f6d-a2be-191a66da1d46/bin/uautomizer-DrprNOufMa/z3 [2021-12-07 01:43:34,353 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0da695f-68a6-4f6d-a2be-191a66da1d46/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-07 01:43:34,353 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0da695f-68a6-4f6d-a2be-191a66da1d46/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (16)] Waiting until timeout for monitored process [2021-12-07 01:43:34,354 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 [2021-12-07 01:43:34,361 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-07 01:43:34,361 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-12-07 01:43:34,361 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-07 01:43:34,361 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-07 01:43:34,361 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-07 01:43:34,361 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-12-07 01:43:34,361 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-12-07 01:43:34,362 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-07 01:43:34,380 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0da695f-68a6-4f6d-a2be-191a66da1d46/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (16)] Ended with exit code 0 [2021-12-07 01:43:34,380 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-07 01:43:34,380 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0da695f-68a6-4f6d-a2be-191a66da1d46/bin/uautomizer-DrprNOufMa/z3 [2021-12-07 01:43:34,381 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0da695f-68a6-4f6d-a2be-191a66da1d46/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-07 01:43:34,382 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0da695f-68a6-4f6d-a2be-191a66da1d46/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (17)] Waiting until timeout for monitored process [2021-12-07 01:43:34,382 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 [2021-12-07 01:43:34,389 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-07 01:43:34,389 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-12-07 01:43:34,389 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-07 01:43:34,389 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-07 01:43:34,389 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-07 01:43:34,390 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-12-07 01:43:34,390 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-12-07 01:43:34,391 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-07 01:43:34,409 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0da695f-68a6-4f6d-a2be-191a66da1d46/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (17)] Ended with exit code 0 [2021-12-07 01:43:34,409 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-07 01:43:34,410 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0da695f-68a6-4f6d-a2be-191a66da1d46/bin/uautomizer-DrprNOufMa/z3 [2021-12-07 01:43:34,410 INFO L229 MonitoredProcess]: Starting monitored process 18 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0da695f-68a6-4f6d-a2be-191a66da1d46/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-07 01:43:34,411 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0da695f-68a6-4f6d-a2be-191a66da1d46/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (18)] Waiting until timeout for monitored process [2021-12-07 01:43:34,411 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 [2021-12-07 01:43:34,418 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-07 01:43:34,418 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-12-07 01:43:34,418 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-07 01:43:34,418 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-07 01:43:34,418 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-07 01:43:34,418 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-12-07 01:43:34,419 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-12-07 01:43:34,419 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-07 01:43:34,437 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0da695f-68a6-4f6d-a2be-191a66da1d46/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (18)] Ended with exit code 0 [2021-12-07 01:43:34,438 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-07 01:43:34,438 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0da695f-68a6-4f6d-a2be-191a66da1d46/bin/uautomizer-DrprNOufMa/z3 [2021-12-07 01:43:34,438 INFO L229 MonitoredProcess]: Starting monitored process 19 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0da695f-68a6-4f6d-a2be-191a66da1d46/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-07 01:43:34,439 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0da695f-68a6-4f6d-a2be-191a66da1d46/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (19)] Waiting until timeout for monitored process [2021-12-07 01:43:34,439 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-12-07 01:43:34,446 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-07 01:43:34,447 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-12-07 01:43:34,447 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-07 01:43:34,447 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-07 01:43:34,447 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-07 01:43:34,447 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-12-07 01:43:34,447 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-12-07 01:43:34,448 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-07 01:43:34,466 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0da695f-68a6-4f6d-a2be-191a66da1d46/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (19)] Ended with exit code 0 [2021-12-07 01:43:34,467 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-07 01:43:34,467 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0da695f-68a6-4f6d-a2be-191a66da1d46/bin/uautomizer-DrprNOufMa/z3 [2021-12-07 01:43:34,467 INFO L229 MonitoredProcess]: Starting monitored process 20 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0da695f-68a6-4f6d-a2be-191a66da1d46/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-07 01:43:34,468 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0da695f-68a6-4f6d-a2be-191a66da1d46/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (20)] Waiting until timeout for monitored process [2021-12-07 01:43:34,469 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 [2021-12-07 01:43:34,475 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-07 01:43:34,475 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-12-07 01:43:34,475 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-07 01:43:34,476 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-07 01:43:34,476 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-07 01:43:34,476 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-12-07 01:43:34,476 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-12-07 01:43:34,477 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-07 01:43:34,495 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0da695f-68a6-4f6d-a2be-191a66da1d46/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (20)] Forceful destruction successful, exit code 0 [2021-12-07 01:43:34,495 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-07 01:43:34,495 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0da695f-68a6-4f6d-a2be-191a66da1d46/bin/uautomizer-DrprNOufMa/z3 [2021-12-07 01:43:34,496 INFO L229 MonitoredProcess]: Starting monitored process 21 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0da695f-68a6-4f6d-a2be-191a66da1d46/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-07 01:43:34,497 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0da695f-68a6-4f6d-a2be-191a66da1d46/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (21)] Waiting until timeout for monitored process [2021-12-07 01:43:34,497 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-12-07 01:43:34,504 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-07 01:43:34,504 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-12-07 01:43:34,504 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-07 01:43:34,504 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-07 01:43:34,504 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-07 01:43:34,505 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-12-07 01:43:34,505 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-12-07 01:43:34,506 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-07 01:43:34,524 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0da695f-68a6-4f6d-a2be-191a66da1d46/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (21)] Ended with exit code 0 [2021-12-07 01:43:34,525 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-07 01:43:34,525 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0da695f-68a6-4f6d-a2be-191a66da1d46/bin/uautomizer-DrprNOufMa/z3 [2021-12-07 01:43:34,525 INFO L229 MonitoredProcess]: Starting monitored process 22 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0da695f-68a6-4f6d-a2be-191a66da1d46/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-07 01:43:34,526 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0da695f-68a6-4f6d-a2be-191a66da1d46/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (22)] Waiting until timeout for monitored process [2021-12-07 01:43:34,526 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 [2021-12-07 01:43:34,533 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-07 01:43:34,533 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-12-07 01:43:34,533 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-07 01:43:34,533 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-07 01:43:34,534 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-07 01:43:34,534 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-12-07 01:43:34,534 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-12-07 01:43:34,535 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-07 01:43:34,553 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0da695f-68a6-4f6d-a2be-191a66da1d46/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (22)] Ended with exit code 0 [2021-12-07 01:43:34,553 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-07 01:43:34,553 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0da695f-68a6-4f6d-a2be-191a66da1d46/bin/uautomizer-DrprNOufMa/z3 [2021-12-07 01:43:34,554 INFO L229 MonitoredProcess]: Starting monitored process 23 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0da695f-68a6-4f6d-a2be-191a66da1d46/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-07 01:43:34,554 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0da695f-68a6-4f6d-a2be-191a66da1d46/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (23)] Waiting until timeout for monitored process [2021-12-07 01:43:34,555 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 [2021-12-07 01:43:34,562 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-07 01:43:34,562 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-12-07 01:43:34,562 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-07 01:43:34,562 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-07 01:43:34,562 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-07 01:43:34,562 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-12-07 01:43:34,563 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-12-07 01:43:34,563 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-07 01:43:34,581 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0da695f-68a6-4f6d-a2be-191a66da1d46/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (23)] Ended with exit code 0 [2021-12-07 01:43:34,582 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-07 01:43:34,582 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0da695f-68a6-4f6d-a2be-191a66da1d46/bin/uautomizer-DrprNOufMa/z3 [2021-12-07 01:43:34,583 INFO L229 MonitoredProcess]: Starting monitored process 24 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0da695f-68a6-4f6d-a2be-191a66da1d46/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-07 01:43:34,583 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0da695f-68a6-4f6d-a2be-191a66da1d46/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (24)] Waiting until timeout for monitored process [2021-12-07 01:43:34,584 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 [2021-12-07 01:43:34,591 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-07 01:43:34,591 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-12-07 01:43:34,591 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-07 01:43:34,591 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-07 01:43:34,591 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-07 01:43:34,592 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-12-07 01:43:34,592 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-12-07 01:43:34,593 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-07 01:43:34,611 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0da695f-68a6-4f6d-a2be-191a66da1d46/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (24)] Forceful destruction successful, exit code 0 [2021-12-07 01:43:34,612 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-07 01:43:34,612 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0da695f-68a6-4f6d-a2be-191a66da1d46/bin/uautomizer-DrprNOufMa/z3 [2021-12-07 01:43:34,612 INFO L229 MonitoredProcess]: Starting monitored process 25 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0da695f-68a6-4f6d-a2be-191a66da1d46/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-07 01:43:34,613 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0da695f-68a6-4f6d-a2be-191a66da1d46/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (25)] Waiting until timeout for monitored process [2021-12-07 01:43:34,614 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-12-07 01:43:34,621 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-07 01:43:34,621 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-12-07 01:43:34,622 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-07 01:43:34,622 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-07 01:43:34,622 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-07 01:43:34,622 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-12-07 01:43:34,622 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-12-07 01:43:34,623 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-07 01:43:34,641 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0da695f-68a6-4f6d-a2be-191a66da1d46/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (25)] Forceful destruction successful, exit code 0 [2021-12-07 01:43:34,641 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-07 01:43:34,641 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0da695f-68a6-4f6d-a2be-191a66da1d46/bin/uautomizer-DrprNOufMa/z3 [2021-12-07 01:43:34,642 INFO L229 MonitoredProcess]: Starting monitored process 26 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0da695f-68a6-4f6d-a2be-191a66da1d46/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-07 01:43:34,643 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0da695f-68a6-4f6d-a2be-191a66da1d46/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (26)] Waiting until timeout for monitored process [2021-12-07 01:43:34,643 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 [2021-12-07 01:43:34,650 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-07 01:43:34,650 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-07 01:43:34,650 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-07 01:43:34,650 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-07 01:43:34,652 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-12-07 01:43:34,652 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-12-07 01:43:34,655 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-07 01:43:34,673 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0da695f-68a6-4f6d-a2be-191a66da1d46/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (26)] Ended with exit code 0 [2021-12-07 01:43:34,673 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-07 01:43:34,673 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0da695f-68a6-4f6d-a2be-191a66da1d46/bin/uautomizer-DrprNOufMa/z3 [2021-12-07 01:43:34,674 INFO L229 MonitoredProcess]: Starting monitored process 27 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0da695f-68a6-4f6d-a2be-191a66da1d46/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-07 01:43:34,675 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0da695f-68a6-4f6d-a2be-191a66da1d46/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (27)] Waiting until timeout for monitored process [2021-12-07 01:43:34,675 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 [2021-12-07 01:43:34,682 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-07 01:43:34,682 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-12-07 01:43:34,682 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-07 01:43:34,682 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-07 01:43:34,683 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-07 01:43:34,683 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-12-07 01:43:34,683 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-12-07 01:43:34,684 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-07 01:43:34,702 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0da695f-68a6-4f6d-a2be-191a66da1d46/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (27)] Ended with exit code 0 [2021-12-07 01:43:34,702 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-07 01:43:34,702 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0da695f-68a6-4f6d-a2be-191a66da1d46/bin/uautomizer-DrprNOufMa/z3 [2021-12-07 01:43:34,703 INFO L229 MonitoredProcess]: Starting monitored process 28 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0da695f-68a6-4f6d-a2be-191a66da1d46/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-07 01:43:34,703 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0da695f-68a6-4f6d-a2be-191a66da1d46/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (28)] Waiting until timeout for monitored process [2021-12-07 01:43:34,704 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 [2021-12-07 01:43:34,711 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-07 01:43:34,711 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-12-07 01:43:34,711 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-07 01:43:34,711 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-07 01:43:34,711 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-07 01:43:34,711 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-12-07 01:43:34,711 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-12-07 01:43:34,712 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-07 01:43:34,731 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0da695f-68a6-4f6d-a2be-191a66da1d46/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (28)] Ended with exit code 0 [2021-12-07 01:43:34,731 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-07 01:43:34,731 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0da695f-68a6-4f6d-a2be-191a66da1d46/bin/uautomizer-DrprNOufMa/z3 [2021-12-07 01:43:34,732 INFO L229 MonitoredProcess]: Starting monitored process 29 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0da695f-68a6-4f6d-a2be-191a66da1d46/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-07 01:43:34,733 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0da695f-68a6-4f6d-a2be-191a66da1d46/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (29)] Waiting until timeout for monitored process [2021-12-07 01:43:34,733 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 [2021-12-07 01:43:34,740 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-07 01:43:34,740 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-12-07 01:43:34,740 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-07 01:43:34,740 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-07 01:43:34,741 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-07 01:43:34,741 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-12-07 01:43:34,741 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-12-07 01:43:34,743 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-07 01:43:34,761 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0da695f-68a6-4f6d-a2be-191a66da1d46/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (29)] Ended with exit code 0 [2021-12-07 01:43:34,761 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-07 01:43:34,761 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0da695f-68a6-4f6d-a2be-191a66da1d46/bin/uautomizer-DrprNOufMa/z3 [2021-12-07 01:43:34,761 INFO L229 MonitoredProcess]: Starting monitored process 30 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0da695f-68a6-4f6d-a2be-191a66da1d46/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-07 01:43:34,762 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0da695f-68a6-4f6d-a2be-191a66da1d46/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (30)] Waiting until timeout for monitored process [2021-12-07 01:43:34,763 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-12-07 01:43:34,770 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-07 01:43:34,770 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-12-07 01:43:34,770 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-07 01:43:34,771 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-07 01:43:34,771 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-07 01:43:34,771 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-12-07 01:43:34,771 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-12-07 01:43:34,772 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-07 01:43:34,790 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0da695f-68a6-4f6d-a2be-191a66da1d46/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (30)] Forceful destruction successful, exit code 0 [2021-12-07 01:43:34,791 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-07 01:43:34,791 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0da695f-68a6-4f6d-a2be-191a66da1d46/bin/uautomizer-DrprNOufMa/z3 [2021-12-07 01:43:34,791 INFO L229 MonitoredProcess]: Starting monitored process 31 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0da695f-68a6-4f6d-a2be-191a66da1d46/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-07 01:43:34,792 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0da695f-68a6-4f6d-a2be-191a66da1d46/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (31)] Waiting until timeout for monitored process [2021-12-07 01:43:34,792 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 [2021-12-07 01:43:34,799 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-07 01:43:34,799 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-07 01:43:34,799 INFO L204 nArgumentSynthesizer]: 2 loop disjuncts [2021-12-07 01:43:34,799 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-07 01:43:34,803 INFO L401 nArgumentSynthesizer]: We have 16 Motzkin's Theorem applications. [2021-12-07 01:43:34,803 INFO L402 nArgumentSynthesizer]: A total of 4 supporting invariants were added. [2021-12-07 01:43:34,816 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2021-12-07 01:43:34,841 INFO L443 ModelExtractionUtils]: Simplification made 14 calls to the SMT solver. [2021-12-07 01:43:34,842 INFO L444 ModelExtractionUtils]: 1 out of 11 variables were initially zero. Simplification set additionally 7 variables to zero. [2021-12-07 01:43:34,843 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-07 01:43:34,843 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0da695f-68a6-4f6d-a2be-191a66da1d46/bin/uautomizer-DrprNOufMa/z3 [2021-12-07 01:43:34,844 INFO L229 MonitoredProcess]: Starting monitored process 32 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0da695f-68a6-4f6d-a2be-191a66da1d46/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-07 01:43:34,845 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0da695f-68a6-4f6d-a2be-191a66da1d46/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (32)] Waiting until timeout for monitored process [2021-12-07 01:43:34,846 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2021-12-07 01:43:34,855 INFO L438 nArgumentSynthesizer]: Removed 3 redundant supporting invariants from a total of 4. [2021-12-07 01:43:34,855 INFO L513 LassoAnalysis]: Proved termination. [2021-12-07 01:43:34,855 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(new_ll_#in~n) = 1*new_ll_#in~n Supporting invariants [1*new_ll_#in~n >= 0] [2021-12-07 01:43:34,874 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0da695f-68a6-4f6d-a2be-191a66da1d46/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (31)] Ended with exit code 0 [2021-12-07 01:43:34,878 INFO L297 tatePredicateManager]: 0 out of 1 supporting invariants were superfluous and have been removed [2021-12-07 01:43:34,897 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-07 01:43:34,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:43:34,911 INFO L263 TraceCheckSpWp]: Trace formula consists of 53 conjuncts, 6 conjunts are in the unsatisfiable core [2021-12-07 01:43:34,912 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-07 01:43:34,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:43:34,941 INFO L263 TraceCheckSpWp]: Trace formula consists of 76 conjuncts, 10 conjunts are in the unsatisfiable core [2021-12-07 01:43:34,941 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-07 01:43:34,966 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-07 01:43:34,991 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.2 stem predicates 3 loop predicates [2021-12-07 01:43:34,992 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand has 27 states, 20 states have (on average 1.3) internal successors, (26), 20 states have internal predecessors, (26), 4 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) Second operand has 5 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 4 states have internal predecessors, (5), 2 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-07 01:43:35,071 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand has 27 states, 20 states have (on average 1.3) internal successors, (26), 20 states have internal predecessors, (26), 4 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4). Second operand has 5 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 4 states have internal predecessors, (5), 2 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 45 states and 54 transitions. Complement of second has 13 states. [2021-12-07 01:43:35,073 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 5 states 2 stem states 2 non-accepting loop states 1 accepting loop states [2021-12-07 01:43:35,076 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 4 states have internal predecessors, (5), 2 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-07 01:43:35,077 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 12 transitions. [2021-12-07 01:43:35,078 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 12 transitions. Stem has 4 letters. Loop has 3 letters. [2021-12-07 01:43:35,078 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-12-07 01:43:35,078 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 12 transitions. Stem has 7 letters. Loop has 3 letters. [2021-12-07 01:43:35,079 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-12-07 01:43:35,079 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 12 transitions. Stem has 4 letters. Loop has 6 letters. [2021-12-07 01:43:35,079 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-12-07 01:43:35,079 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 45 states and 54 transitions. [2021-12-07 01:43:35,082 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 5 [2021-12-07 01:43:35,087 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 45 states to 29 states and 37 transitions. [2021-12-07 01:43:35,088 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 22 [2021-12-07 01:43:35,088 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 24 [2021-12-07 01:43:35,088 INFO L73 IsDeterministic]: Start isDeterministic. Operand 29 states and 37 transitions. [2021-12-07 01:43:35,089 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2021-12-07 01:43:35,089 INFO L681 BuchiCegarLoop]: Abstraction has 29 states and 37 transitions. [2021-12-07 01:43:35,100 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29 states and 37 transitions. [2021-12-07 01:43:35,110 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29 to 27. [2021-12-07 01:43:35,110 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 27 states, 20 states have (on average 1.25) internal successors, (25), 21 states have internal predecessors, (25), 4 states have call successors, (4), 3 states have call predecessors, (4), 3 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2021-12-07 01:43:35,111 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 27 states and 33 transitions. [2021-12-07 01:43:35,112 INFO L704 BuchiCegarLoop]: Abstraction has 27 states and 33 transitions. [2021-12-07 01:43:35,112 INFO L587 BuchiCegarLoop]: Abstraction has 27 states and 33 transitions. [2021-12-07 01:43:35,112 INFO L425 BuchiCegarLoop]: ======== Iteration 2============ [2021-12-07 01:43:35,113 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 27 states and 33 transitions. [2021-12-07 01:43:35,114 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 5 [2021-12-07 01:43:35,114 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-12-07 01:43:35,114 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-12-07 01:43:35,115 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-07 01:43:35,115 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2021-12-07 01:43:35,115 INFO L791 eck$LassoCheckResult]: Stem: 146#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier; 147#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet8#1, main_#t~ret9#1.base, main_#t~ret9#1.offset, main_#t~ret10#1.base, main_#t~ret10#1.offset, main_#t~ret11#1, main_~n~0#1, main_~x~0#1.base, main_~x~0#1.offset, main_~y~0#1.base, main_~y~0#1.offset, main_~y_length~0#1;main_~n~0#1 := main_#t~nondet8#1;havoc main_#t~nondet8#1; 154#L574 assume !(main_~n~0#1 < 1); 143#L577 call main_#t~ret9#1.base, main_#t~ret9#1.offset := new_ll(main_~n~0#1);< 162#new_llENTRY ~n := #in~n; 163#L548 assume 0 == ~n;#res.base, #res.offset := 0, 0; 165#new_llFINAL assume true; 159#new_llEXIT >#57#return; 157#L577-1 main_~x~0#1.base, main_~x~0#1.offset := main_#t~ret9#1.base, main_#t~ret9#1.offset;havoc main_#t~ret9#1.base, main_#t~ret9#1.offset;assume { :begin_inline_append } true;append_#in~x#1.base, append_#in~x#1.offset, append_#in~y#1.base, append_#in~y#1.offset := main_~x~0#1.base, main_~x~0#1.offset, main_~x~0#1.base, main_~x~0#1.offset;havoc append_#res#1.base, append_#res#1.offset;havoc append_#t~mem7#1.base, append_#t~mem7#1.offset, append_#t~mem6#1.base, append_#t~mem6#1.offset, append_~x#1.base, append_~x#1.offset, append_~y#1.base, append_~y#1.offset, append_~s~0#1.base, append_~s~0#1.offset;append_~x#1.base, append_~x#1.offset := append_#in~x#1.base, append_#in~x#1.offset;append_~y#1.base, append_~y#1.offset := append_#in~y#1.base, append_#in~y#1.offset; 158#L563 assume !(append_~x#1.base == 0 && append_~x#1.offset == 0);append_~s~0#1.base, append_~s~0#1.offset := append_~x#1.base, append_~x#1.offset; 160#L566-3 [2021-12-07 01:43:35,116 INFO L793 eck$LassoCheckResult]: Loop: 160#L566-3 call append_#t~mem6#1.base, append_#t~mem6#1.offset := read~$Pointer$(append_~x#1.base, 4 + append_~x#1.offset, 8); 161#L566-1 assume !!(append_#t~mem6#1.base != 0 || append_#t~mem6#1.offset != 0);havoc append_#t~mem6#1.base, append_#t~mem6#1.offset;call append_#t~mem7#1.base, append_#t~mem7#1.offset := read~$Pointer$(append_~x#1.base, 4 + append_~x#1.offset, 8);append_~x#1.base, append_~x#1.offset := append_#t~mem7#1.base, append_#t~mem7#1.offset;havoc append_#t~mem7#1.base, append_#t~mem7#1.offset; 160#L566-3 [2021-12-07 01:43:35,116 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-07 01:43:35,116 INFO L85 PathProgramCache]: Analyzing trace with hash 772923198, now seen corresponding path program 1 times [2021-12-07 01:43:35,116 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-07 01:43:35,117 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1398661187] [2021-12-07 01:43:35,117 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-07 01:43:35,117 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-07 01:43:35,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:43:35,179 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-07 01:43:35,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:43:35,201 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-07 01:43:35,201 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-07 01:43:35,202 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1398661187] [2021-12-07 01:43:35,202 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1398661187] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-07 01:43:35,202 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-07 01:43:35,202 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-12-07 01:43:35,202 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [902677945] [2021-12-07 01:43:35,203 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-07 01:43:35,204 INFO L796 eck$LassoCheckResult]: stem already infeasible [2021-12-07 01:43:35,205 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-07 01:43:35,205 INFO L85 PathProgramCache]: Analyzing trace with hash 2086, now seen corresponding path program 1 times [2021-12-07 01:43:35,205 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-07 01:43:35,205 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [109483349] [2021-12-07 01:43:35,205 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-07 01:43:35,205 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-07 01:43:35,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-07 01:43:35,209 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-07 01:43:35,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-07 01:43:35,213 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-07 01:43:35,248 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-07 01:43:35,249 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-12-07 01:43:35,250 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-12-07 01:43:35,251 INFO L87 Difference]: Start difference. First operand 27 states and 33 transitions. cyclomatic complexity: 9 Second operand has 6 states, 5 states have (on average 1.6) internal successors, (8), 4 states have internal predecessors, (8), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-12-07 01:43:35,308 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-07 01:43:35,308 INFO L93 Difference]: Finished difference Result 31 states and 36 transitions. [2021-12-07 01:43:35,308 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-12-07 01:43:35,308 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 31 states and 36 transitions. [2021-12-07 01:43:35,310 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 5 [2021-12-07 01:43:35,311 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 31 states to 31 states and 36 transitions. [2021-12-07 01:43:35,311 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 28 [2021-12-07 01:43:35,311 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 28 [2021-12-07 01:43:35,311 INFO L73 IsDeterministic]: Start isDeterministic. Operand 31 states and 36 transitions. [2021-12-07 01:43:35,311 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2021-12-07 01:43:35,311 INFO L681 BuchiCegarLoop]: Abstraction has 31 states and 36 transitions. [2021-12-07 01:43:35,311 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31 states and 36 transitions. [2021-12-07 01:43:35,313 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31 to 29. [2021-12-07 01:43:35,313 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 29 states, 22 states have (on average 1.1818181818181819) internal successors, (26), 22 states have internal predecessors, (26), 4 states have call successors, (4), 3 states have call predecessors, (4), 3 states have return successors, (4), 3 states have call predecessors, (4), 2 states have call successors, (4) [2021-12-07 01:43:35,314 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29 states to 29 states and 34 transitions. [2021-12-07 01:43:35,314 INFO L704 BuchiCegarLoop]: Abstraction has 29 states and 34 transitions. [2021-12-07 01:43:35,314 INFO L587 BuchiCegarLoop]: Abstraction has 29 states and 34 transitions. [2021-12-07 01:43:35,314 INFO L425 BuchiCegarLoop]: ======== Iteration 3============ [2021-12-07 01:43:35,314 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 29 states and 34 transitions. [2021-12-07 01:43:35,315 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 5 [2021-12-07 01:43:35,315 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-12-07 01:43:35,315 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-12-07 01:43:35,315 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-07 01:43:35,315 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2021-12-07 01:43:35,315 INFO L791 eck$LassoCheckResult]: Stem: 219#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier; 220#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet8#1, main_#t~ret9#1.base, main_#t~ret9#1.offset, main_#t~ret10#1.base, main_#t~ret10#1.offset, main_#t~ret11#1, main_~n~0#1, main_~x~0#1.base, main_~x~0#1.offset, main_~y~0#1.base, main_~y~0#1.offset, main_~y_length~0#1;main_~n~0#1 := main_#t~nondet8#1;havoc main_#t~nondet8#1; 227#L574 assume !(main_~n~0#1 < 1); 217#L577 call main_#t~ret9#1.base, main_#t~ret9#1.offset := new_ll(main_~n~0#1);< 234#new_llENTRY ~n := #in~n; 224#L548 assume 0 == ~n;#res.base, #res.offset := 0, 0; 225#new_llFINAL assume true; 228#new_llEXIT >#57#return; 230#L577-1 main_~x~0#1.base, main_~x~0#1.offset := main_#t~ret9#1.base, main_#t~ret9#1.offset;havoc main_#t~ret9#1.base, main_#t~ret9#1.offset;assume { :begin_inline_append } true;append_#in~x#1.base, append_#in~x#1.offset, append_#in~y#1.base, append_#in~y#1.offset := main_~x~0#1.base, main_~x~0#1.offset, main_~x~0#1.base, main_~x~0#1.offset;havoc append_#res#1.base, append_#res#1.offset;havoc append_#t~mem7#1.base, append_#t~mem7#1.offset, append_#t~mem6#1.base, append_#t~mem6#1.offset, append_~x#1.base, append_~x#1.offset, append_~y#1.base, append_~y#1.offset, append_~s~0#1.base, append_~s~0#1.offset;append_~x#1.base, append_~x#1.offset := append_#in~x#1.base, append_#in~x#1.offset;append_~y#1.base, append_~y#1.offset := append_#in~y#1.base, append_#in~y#1.offset; 231#L563 assume append_~x#1.base == 0 && append_~x#1.offset == 0;append_#res#1.base, append_#res#1.offset := append_~y#1.base, append_~y#1.offset; 213#L569 main_#t~ret10#1.base, main_#t~ret10#1.offset := append_#res#1.base, append_#res#1.offset;assume { :end_inline_append } true;main_~y~0#1.base, main_~y~0#1.offset := main_#t~ret10#1.base, main_#t~ret10#1.offset;havoc main_#t~ret10#1.base, main_#t~ret10#1.offset; 214#L579 call main_#t~ret11#1 := length(main_~y~0#1.base, main_~y~0#1.offset);< 229#lengthENTRY [2021-12-07 01:43:35,316 INFO L793 eck$LassoCheckResult]: Loop: 229#lengthENTRY ~xs.base, ~xs.offset := #in~xs.base, #in~xs.offset; 222#L557 assume !(~xs.base == 0 && ~xs.offset == 0);call #t~mem4.base, #t~mem4.offset := read~$Pointer$(~xs.base, 4 + ~xs.offset, 8); 223#L559 call #t~ret5 := length(#t~mem4.base, #t~mem4.offset);< 229#lengthENTRY [2021-12-07 01:43:35,316 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-07 01:43:35,316 INFO L85 PathProgramCache]: Analyzing trace with hash -250149368, now seen corresponding path program 1 times [2021-12-07 01:43:35,316 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-07 01:43:35,316 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [422561587] [2021-12-07 01:43:35,316 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-07 01:43:35,316 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-07 01:43:35,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:43:35,338 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-07 01:43:35,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:43:35,353 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-07 01:43:35,353 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-07 01:43:35,353 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [422561587] [2021-12-07 01:43:35,353 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [422561587] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-07 01:43:35,353 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-07 01:43:35,353 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-12-07 01:43:35,353 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1385159123] [2021-12-07 01:43:35,353 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-07 01:43:35,354 INFO L796 eck$LassoCheckResult]: stem already infeasible [2021-12-07 01:43:35,354 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-07 01:43:35,354 INFO L85 PathProgramCache]: Analyzing trace with hash 37905, now seen corresponding path program 1 times [2021-12-07 01:43:35,354 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-07 01:43:35,354 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1910449433] [2021-12-07 01:43:35,354 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-07 01:43:35,354 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-07 01:43:35,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-07 01:43:35,358 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-07 01:43:35,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-07 01:43:35,361 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-07 01:43:35,449 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-07 01:43:35,449 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-12-07 01:43:35,449 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-12-07 01:43:35,449 INFO L87 Difference]: Start difference. First operand 29 states and 34 transitions. cyclomatic complexity: 8 Second operand has 6 states, 5 states have (on average 1.8) internal successors, (9), 5 states have internal predecessors, (9), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-12-07 01:43:35,496 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-07 01:43:35,496 INFO L93 Difference]: Finished difference Result 27 states and 31 transitions. [2021-12-07 01:43:35,496 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-12-07 01:43:35,497 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 27 states and 31 transitions. [2021-12-07 01:43:35,498 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 5 [2021-12-07 01:43:35,499 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 27 states to 24 states and 28 transitions. [2021-12-07 01:43:35,499 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 21 [2021-12-07 01:43:35,499 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 21 [2021-12-07 01:43:35,499 INFO L73 IsDeterministic]: Start isDeterministic. Operand 24 states and 28 transitions. [2021-12-07 01:43:35,499 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2021-12-07 01:43:35,499 INFO L681 BuchiCegarLoop]: Abstraction has 24 states and 28 transitions. [2021-12-07 01:43:35,499 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24 states and 28 transitions. [2021-12-07 01:43:35,501 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24 to 24. [2021-12-07 01:43:35,501 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24 states, 18 states have (on average 1.1666666666666667) internal successors, (21), 18 states have internal predecessors, (21), 4 states have call successors, (4), 3 states have call predecessors, (4), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2021-12-07 01:43:35,501 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 24 states and 28 transitions. [2021-12-07 01:43:35,501 INFO L704 BuchiCegarLoop]: Abstraction has 24 states and 28 transitions. [2021-12-07 01:43:35,501 INFO L587 BuchiCegarLoop]: Abstraction has 24 states and 28 transitions. [2021-12-07 01:43:35,501 INFO L425 BuchiCegarLoop]: ======== Iteration 4============ [2021-12-07 01:43:35,502 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 24 states and 28 transitions. [2021-12-07 01:43:35,502 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 5 [2021-12-07 01:43:35,502 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-12-07 01:43:35,502 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-12-07 01:43:35,503 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-07 01:43:35,503 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2021-12-07 01:43:35,503 INFO L791 eck$LassoCheckResult]: Stem: 292#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier; 293#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet8#1, main_#t~ret9#1.base, main_#t~ret9#1.offset, main_#t~ret10#1.base, main_#t~ret10#1.offset, main_#t~ret11#1, main_~n~0#1, main_~x~0#1.base, main_~x~0#1.offset, main_~y~0#1.base, main_~y~0#1.offset, main_~y_length~0#1;main_~n~0#1 := main_#t~nondet8#1;havoc main_#t~nondet8#1; 300#L574 assume !(main_~n~0#1 < 1); 287#L577 call main_#t~ret9#1.base, main_#t~ret9#1.offset := new_ll(main_~n~0#1);< 307#new_llENTRY ~n := #in~n; 299#L548 assume !(0 == ~n);call #t~malloc2.base, #t~malloc2.offset := #Ultimate.allocOnHeap(12);~head~0.base, ~head~0.offset := #t~malloc2.base, #t~malloc2.offset;havoc #t~malloc2.base, #t~malloc2.offset;call write~int(~n, ~head~0.base, ~head~0.offset, 4); 288#L552 call #t~ret3.base, #t~ret3.offset := new_ll(~n - 1);< 308#new_llENTRY ~n := #in~n; 297#L548 assume 0 == ~n;#res.base, #res.offset := 0, 0; 298#new_llFINAL assume true; 301#new_llEXIT >#53#return; 286#L552-1 call write~$Pointer$(#t~ret3.base, #t~ret3.offset, ~head~0.base, 4 + ~head~0.offset, 8);havoc #t~ret3.base, #t~ret3.offset;#res.base, #res.offset := ~head~0.base, ~head~0.offset; 289#new_llFINAL assume true; 309#new_llEXIT >#57#return; 303#L577-1 main_~x~0#1.base, main_~x~0#1.offset := main_#t~ret9#1.base, main_#t~ret9#1.offset;havoc main_#t~ret9#1.base, main_#t~ret9#1.offset;assume { :begin_inline_append } true;append_#in~x#1.base, append_#in~x#1.offset, append_#in~y#1.base, append_#in~y#1.offset := main_~x~0#1.base, main_~x~0#1.offset, main_~x~0#1.base, main_~x~0#1.offset;havoc append_#res#1.base, append_#res#1.offset;havoc append_#t~mem7#1.base, append_#t~mem7#1.offset, append_#t~mem6#1.base, append_#t~mem6#1.offset, append_~x#1.base, append_~x#1.offset, append_~y#1.base, append_~y#1.offset, append_~s~0#1.base, append_~s~0#1.offset;append_~x#1.base, append_~x#1.offset := append_#in~x#1.base, append_#in~x#1.offset;append_~y#1.base, append_~y#1.offset := append_#in~y#1.base, append_#in~y#1.offset; 304#L563 assume !(append_~x#1.base == 0 && append_~x#1.offset == 0);append_~s~0#1.base, append_~s~0#1.offset := append_~x#1.base, append_~x#1.offset; 305#L566-3 [2021-12-07 01:43:35,503 INFO L793 eck$LassoCheckResult]: Loop: 305#L566-3 call append_#t~mem6#1.base, append_#t~mem6#1.offset := read~$Pointer$(append_~x#1.base, 4 + append_~x#1.offset, 8); 306#L566-1 assume !!(append_#t~mem6#1.base != 0 || append_#t~mem6#1.offset != 0);havoc append_#t~mem6#1.base, append_#t~mem6#1.offset;call append_#t~mem7#1.base, append_#t~mem7#1.offset := read~$Pointer$(append_~x#1.base, 4 + append_~x#1.offset, 8);append_~x#1.base, append_~x#1.offset := append_#t~mem7#1.base, append_#t~mem7#1.offset;havoc append_#t~mem7#1.base, append_#t~mem7#1.offset; 305#L566-3 [2021-12-07 01:43:35,503 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-07 01:43:35,503 INFO L85 PathProgramCache]: Analyzing trace with hash 704779872, now seen corresponding path program 1 times [2021-12-07 01:43:35,503 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-07 01:43:35,504 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1316102361] [2021-12-07 01:43:35,504 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-07 01:43:35,504 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-07 01:43:35,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-07 01:43:35,524 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-07 01:43:35,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-07 01:43:35,547 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-07 01:43:35,547 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-07 01:43:35,547 INFO L85 PathProgramCache]: Analyzing trace with hash 2086, now seen corresponding path program 2 times [2021-12-07 01:43:35,547 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-07 01:43:35,548 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [150774987] [2021-12-07 01:43:35,548 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-07 01:43:35,548 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-07 01:43:35,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-07 01:43:35,552 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-07 01:43:35,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-07 01:43:35,556 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-07 01:43:35,557 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-07 01:43:35,557 INFO L85 PathProgramCache]: Analyzing trace with hash -1311374651, now seen corresponding path program 1 times [2021-12-07 01:43:35,557 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-07 01:43:35,557 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1891004109] [2021-12-07 01:43:35,558 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-07 01:43:35,558 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-07 01:43:35,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:43:35,601 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0da695f-68a6-4f6d-a2be-191a66da1d46/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (32)] Ended with exit code 0 [2021-12-07 01:43:35,634 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-07 01:43:35,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:43:35,670 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-07 01:43:35,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:43:35,691 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-12-07 01:43:35,691 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-07 01:43:35,691 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1891004109] [2021-12-07 01:43:35,692 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1891004109] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-07 01:43:35,692 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [90651207] [2021-12-07 01:43:35,692 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-07 01:43:35,692 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-07 01:43:35,692 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0da695f-68a6-4f6d-a2be-191a66da1d46/bin/uautomizer-DrprNOufMa/z3 [2021-12-07 01:43:35,693 INFO L229 MonitoredProcess]: Starting monitored process 33 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0da695f-68a6-4f6d-a2be-191a66da1d46/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-07 01:43:35,694 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0da695f-68a6-4f6d-a2be-191a66da1d46/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (33)] Waiting until timeout for monitored process [2021-12-07 01:43:35,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:43:35,739 INFO L263 TraceCheckSpWp]: Trace formula consists of 146 conjuncts, 48 conjunts are in the unsatisfiable core [2021-12-07 01:43:35,741 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-07 01:43:35,771 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2021-12-07 01:43:35,849 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2021-12-07 01:43:35,852 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2021-12-07 01:43:35,942 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 7 [2021-12-07 01:43:35,946 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 7 [2021-12-07 01:43:35,951 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 2 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-07 01:43:35,951 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-12-07 01:43:36,171 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-12-07 01:43:36,171 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [90651207] provided 0 perfect and 2 imperfect interpolant sequences [2021-12-07 01:43:36,171 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-12-07 01:43:36,171 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 9, 7] total 19 [2021-12-07 01:43:36,171 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [264499674] [2021-12-07 01:43:36,172 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-12-07 01:43:36,203 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-07 01:43:36,203 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2021-12-07 01:43:36,203 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=53, Invalid=327, Unknown=0, NotChecked=0, Total=380 [2021-12-07 01:43:36,204 INFO L87 Difference]: Start difference. First operand 24 states and 28 transitions. cyclomatic complexity: 7 Second operand has 20 states, 18 states have (on average 1.5555555555555556) internal successors, (28), 13 states have internal predecessors, (28), 2 states have call successors, (5), 3 states have call predecessors, (5), 5 states have return successors, (6), 6 states have call predecessors, (6), 2 states have call successors, (6) [2021-12-07 01:43:36,359 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-07 01:43:36,359 INFO L93 Difference]: Finished difference Result 34 states and 40 transitions. [2021-12-07 01:43:36,359 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-12-07 01:43:36,360 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 34 states and 40 transitions. [2021-12-07 01:43:36,361 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 5 [2021-12-07 01:43:36,362 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 34 states to 34 states and 40 transitions. [2021-12-07 01:43:36,362 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 31 [2021-12-07 01:43:36,362 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 31 [2021-12-07 01:43:36,362 INFO L73 IsDeterministic]: Start isDeterministic. Operand 34 states and 40 transitions. [2021-12-07 01:43:36,362 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2021-12-07 01:43:36,362 INFO L681 BuchiCegarLoop]: Abstraction has 34 states and 40 transitions. [2021-12-07 01:43:36,362 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34 states and 40 transitions. [2021-12-07 01:43:36,364 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34 to 31. [2021-12-07 01:43:36,364 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 31 states, 24 states have (on average 1.1666666666666667) internal successors, (28), 23 states have internal predecessors, (28), 4 states have call successors, (4), 3 states have call predecessors, (4), 3 states have return successors, (5), 4 states have call predecessors, (5), 2 states have call successors, (5) [2021-12-07 01:43:36,365 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 31 states and 37 transitions. [2021-12-07 01:43:36,365 INFO L704 BuchiCegarLoop]: Abstraction has 31 states and 37 transitions. [2021-12-07 01:43:36,365 INFO L587 BuchiCegarLoop]: Abstraction has 31 states and 37 transitions. [2021-12-07 01:43:36,365 INFO L425 BuchiCegarLoop]: ======== Iteration 5============ [2021-12-07 01:43:36,365 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 31 states and 37 transitions. [2021-12-07 01:43:36,366 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 5 [2021-12-07 01:43:36,366 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-12-07 01:43:36,366 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-12-07 01:43:36,366 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-07 01:43:36,366 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2021-12-07 01:43:36,366 INFO L791 eck$LassoCheckResult]: Stem: 497#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier; 498#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet8#1, main_#t~ret9#1.base, main_#t~ret9#1.offset, main_#t~ret10#1.base, main_#t~ret10#1.offset, main_#t~ret11#1, main_~n~0#1, main_~x~0#1.base, main_~x~0#1.offset, main_~y~0#1.base, main_~y~0#1.offset, main_~y_length~0#1;main_~n~0#1 := main_#t~nondet8#1;havoc main_#t~nondet8#1; 505#L574 assume !(main_~n~0#1 < 1); 493#L577 call main_#t~ret9#1.base, main_#t~ret9#1.offset := new_ll(main_~n~0#1);< 514#new_llENTRY ~n := #in~n; 504#L548 assume !(0 == ~n);call #t~malloc2.base, #t~malloc2.offset := #Ultimate.allocOnHeap(12);~head~0.base, ~head~0.offset := #t~malloc2.base, #t~malloc2.offset;havoc #t~malloc2.base, #t~malloc2.offset;call write~int(~n, ~head~0.base, ~head~0.offset, 4); 492#L552 call #t~ret3.base, #t~ret3.offset := new_ll(~n - 1);< 515#new_llENTRY ~n := #in~n; 502#L548 assume 0 == ~n;#res.base, #res.offset := 0, 0; 503#new_llFINAL assume true; 510#new_llEXIT >#53#return; 511#L552-1 call write~$Pointer$(#t~ret3.base, #t~ret3.offset, ~head~0.base, 4 + ~head~0.offset, 8);havoc #t~ret3.base, #t~ret3.offset;#res.base, #res.offset := ~head~0.base, ~head~0.offset; 521#new_llFINAL assume true; 520#new_llEXIT >#57#return; 508#L577-1 main_~x~0#1.base, main_~x~0#1.offset := main_#t~ret9#1.base, main_#t~ret9#1.offset;havoc main_#t~ret9#1.base, main_#t~ret9#1.offset;assume { :begin_inline_append } true;append_#in~x#1.base, append_#in~x#1.offset, append_#in~y#1.base, append_#in~y#1.offset := main_~x~0#1.base, main_~x~0#1.offset, main_~x~0#1.base, main_~x~0#1.offset;havoc append_#res#1.base, append_#res#1.offset;havoc append_#t~mem7#1.base, append_#t~mem7#1.offset, append_#t~mem6#1.base, append_#t~mem6#1.offset, append_~x#1.base, append_~x#1.offset, append_~y#1.base, append_~y#1.offset, append_~s~0#1.base, append_~s~0#1.offset;append_~x#1.base, append_~x#1.offset := append_#in~x#1.base, append_#in~x#1.offset;append_~y#1.base, append_~y#1.offset := append_#in~y#1.base, append_#in~y#1.offset; 509#L563 assume append_~x#1.base == 0 && append_~x#1.offset == 0;append_#res#1.base, append_#res#1.offset := append_~y#1.base, append_~y#1.offset; 495#L569 main_#t~ret10#1.base, main_#t~ret10#1.offset := append_#res#1.base, append_#res#1.offset;assume { :end_inline_append } true;main_~y~0#1.base, main_~y~0#1.offset := main_#t~ret10#1.base, main_#t~ret10#1.offset;havoc main_#t~ret10#1.base, main_#t~ret10#1.offset; 496#L579 call main_#t~ret11#1 := length(main_~y~0#1.base, main_~y~0#1.offset);< 507#lengthENTRY [2021-12-07 01:43:36,367 INFO L793 eck$LassoCheckResult]: Loop: 507#lengthENTRY ~xs.base, ~xs.offset := #in~xs.base, #in~xs.offset; 500#L557 assume !(~xs.base == 0 && ~xs.offset == 0);call #t~mem4.base, #t~mem4.offset := read~$Pointer$(~xs.base, 4 + ~xs.offset, 8); 501#L559 call #t~ret5 := length(#t~mem4.base, #t~mem4.offset);< 507#lengthENTRY [2021-12-07 01:43:36,367 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-07 01:43:36,367 INFO L85 PathProgramCache]: Analyzing trace with hash -1311376214, now seen corresponding path program 1 times [2021-12-07 01:43:36,367 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-07 01:43:36,367 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1378412410] [2021-12-07 01:43:36,367 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-07 01:43:36,367 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-07 01:43:36,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:43:36,394 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-07 01:43:36,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:43:36,415 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-07 01:43:36,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:43:36,419 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-12-07 01:43:36,419 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-07 01:43:36,420 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1378412410] [2021-12-07 01:43:36,420 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1378412410] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-07 01:43:36,420 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-07 01:43:36,420 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-12-07 01:43:36,420 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1018235546] [2021-12-07 01:43:36,420 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-07 01:43:36,420 INFO L796 eck$LassoCheckResult]: stem already infeasible [2021-12-07 01:43:36,420 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-07 01:43:36,420 INFO L85 PathProgramCache]: Analyzing trace with hash 37905, now seen corresponding path program 2 times [2021-12-07 01:43:36,421 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-07 01:43:36,421 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1829276758] [2021-12-07 01:43:36,421 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-07 01:43:36,421 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-07 01:43:36,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-07 01:43:36,423 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-07 01:43:36,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-07 01:43:36,426 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-07 01:43:36,497 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-07 01:43:36,497 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-12-07 01:43:36,497 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-12-07 01:43:36,497 INFO L87 Difference]: Start difference. First operand 31 states and 37 transitions. cyclomatic complexity: 9 Second operand has 7 states, 7 states have (on average 1.7142857142857142) internal successors, (12), 5 states have internal predecessors, (12), 3 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2021-12-07 01:43:36,533 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-07 01:43:36,533 INFO L93 Difference]: Finished difference Result 36 states and 41 transitions. [2021-12-07 01:43:36,533 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-12-07 01:43:36,534 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 36 states and 41 transitions. [2021-12-07 01:43:36,534 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 5 [2021-12-07 01:43:36,535 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 36 states to 36 states and 41 transitions. [2021-12-07 01:43:36,535 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 33 [2021-12-07 01:43:36,535 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 33 [2021-12-07 01:43:36,536 INFO L73 IsDeterministic]: Start isDeterministic. Operand 36 states and 41 transitions. [2021-12-07 01:43:36,536 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2021-12-07 01:43:36,536 INFO L681 BuchiCegarLoop]: Abstraction has 36 states and 41 transitions. [2021-12-07 01:43:36,536 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36 states and 41 transitions. [2021-12-07 01:43:36,538 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36 to 31. [2021-12-07 01:43:36,538 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 31 states, 24 states have (on average 1.0833333333333333) internal successors, (26), 23 states have internal predecessors, (26), 4 states have call successors, (4), 3 states have call predecessors, (4), 3 states have return successors, (5), 4 states have call predecessors, (5), 2 states have call successors, (5) [2021-12-07 01:43:36,539 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 31 states and 35 transitions. [2021-12-07 01:43:36,539 INFO L704 BuchiCegarLoop]: Abstraction has 31 states and 35 transitions. [2021-12-07 01:43:36,539 INFO L587 BuchiCegarLoop]: Abstraction has 31 states and 35 transitions. [2021-12-07 01:43:36,539 INFO L425 BuchiCegarLoop]: ======== Iteration 6============ [2021-12-07 01:43:36,539 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 31 states and 35 transitions. [2021-12-07 01:43:36,539 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 5 [2021-12-07 01:43:36,539 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-12-07 01:43:36,540 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-12-07 01:43:36,540 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-07 01:43:36,540 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2021-12-07 01:43:36,540 INFO L791 eck$LassoCheckResult]: Stem: 591#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier; 592#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet8#1, main_#t~ret9#1.base, main_#t~ret9#1.offset, main_#t~ret10#1.base, main_#t~ret10#1.offset, main_#t~ret11#1, main_~n~0#1, main_~x~0#1.base, main_~x~0#1.offset, main_~y~0#1.base, main_~y~0#1.offset, main_~y_length~0#1;main_~n~0#1 := main_#t~nondet8#1;havoc main_#t~nondet8#1; 599#L574 assume !(main_~n~0#1 < 1); 589#L577 call main_#t~ret9#1.base, main_#t~ret9#1.offset := new_ll(main_~n~0#1);< 608#new_llENTRY ~n := #in~n; 598#L548 assume !(0 == ~n);call #t~malloc2.base, #t~malloc2.offset := #Ultimate.allocOnHeap(12);~head~0.base, ~head~0.offset := #t~malloc2.base, #t~malloc2.offset;havoc #t~malloc2.base, #t~malloc2.offset;call write~int(~n, ~head~0.base, ~head~0.offset, 4); 588#L552 call #t~ret3.base, #t~ret3.offset := new_ll(~n - 1);< 609#new_llENTRY ~n := #in~n; 596#L548 assume 0 == ~n;#res.base, #res.offset := 0, 0; 597#new_llFINAL assume true; 601#new_llEXIT >#53#return; 607#L552-1 call write~$Pointer$(#t~ret3.base, #t~ret3.offset, ~head~0.base, 4 + ~head~0.offset, 8);havoc #t~ret3.base, #t~ret3.offset;#res.base, #res.offset := ~head~0.base, ~head~0.offset; 615#new_llFINAL assume true; 611#new_llEXIT >#57#return; 602#L577-1 main_~x~0#1.base, main_~x~0#1.offset := main_#t~ret9#1.base, main_#t~ret9#1.offset;havoc main_#t~ret9#1.base, main_#t~ret9#1.offset;assume { :begin_inline_append } true;append_#in~x#1.base, append_#in~x#1.offset, append_#in~y#1.base, append_#in~y#1.offset := main_~x~0#1.base, main_~x~0#1.offset, main_~x~0#1.base, main_~x~0#1.offset;havoc append_#res#1.base, append_#res#1.offset;havoc append_#t~mem7#1.base, append_#t~mem7#1.offset, append_#t~mem6#1.base, append_#t~mem6#1.offset, append_~x#1.base, append_~x#1.offset, append_~y#1.base, append_~y#1.offset, append_~s~0#1.base, append_~s~0#1.offset;append_~x#1.base, append_~x#1.offset := append_#in~x#1.base, append_#in~x#1.offset;append_~y#1.base, append_~y#1.offset := append_#in~y#1.base, append_#in~y#1.offset; 603#L563 assume !(append_~x#1.base == 0 && append_~x#1.offset == 0);append_~s~0#1.base, append_~s~0#1.offset := append_~x#1.base, append_~x#1.offset; 613#L566-3 call append_#t~mem6#1.base, append_#t~mem6#1.offset := read~$Pointer$(append_~x#1.base, 4 + append_~x#1.offset, 8); 606#L566-1 assume !(append_#t~mem6#1.base != 0 || append_#t~mem6#1.offset != 0);havoc append_#t~mem6#1.base, append_#t~mem6#1.offset; 593#L566-4 call write~$Pointer$(append_~y#1.base, append_~y#1.offset, append_~x#1.base, 4 + append_~x#1.offset, 8);append_#res#1.base, append_#res#1.offset := append_~s~0#1.base, append_~s~0#1.offset; 585#L569 main_#t~ret10#1.base, main_#t~ret10#1.offset := append_#res#1.base, append_#res#1.offset;assume { :end_inline_append } true;main_~y~0#1.base, main_~y~0#1.offset := main_#t~ret10#1.base, main_#t~ret10#1.offset;havoc main_#t~ret10#1.base, main_#t~ret10#1.offset; 586#L579 call main_#t~ret11#1 := length(main_~y~0#1.base, main_~y~0#1.offset);< 600#lengthENTRY [2021-12-07 01:43:36,540 INFO L793 eck$LassoCheckResult]: Loop: 600#lengthENTRY ~xs.base, ~xs.offset := #in~xs.base, #in~xs.offset; 594#L557 assume !(~xs.base == 0 && ~xs.offset == 0);call #t~mem4.base, #t~mem4.offset := read~$Pointer$(~xs.base, 4 + ~xs.offset, 8); 595#L559 call #t~ret5 := length(#t~mem4.base, #t~mem4.offset);< 600#lengthENTRY [2021-12-07 01:43:36,541 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-07 01:43:36,541 INFO L85 PathProgramCache]: Analyzing trace with hash -139719339, now seen corresponding path program 1 times [2021-12-07 01:43:36,541 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-07 01:43:36,541 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1802743787] [2021-12-07 01:43:36,541 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-07 01:43:36,541 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-07 01:43:36,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-07 01:43:36,555 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-07 01:43:36,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-07 01:43:36,576 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-07 01:43:36,576 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-07 01:43:36,577 INFO L85 PathProgramCache]: Analyzing trace with hash 37905, now seen corresponding path program 3 times [2021-12-07 01:43:36,577 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-07 01:43:36,577 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [110246824] [2021-12-07 01:43:36,577 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-07 01:43:36,577 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-07 01:43:36,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-07 01:43:36,580 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-07 01:43:36,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-07 01:43:36,584 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-07 01:43:36,585 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-07 01:43:36,585 INFO L85 PathProgramCache]: Analyzing trace with hash -555510211, now seen corresponding path program 1 times [2021-12-07 01:43:36,585 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-07 01:43:36,585 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [556844051] [2021-12-07 01:43:36,585 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-07 01:43:36,585 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-07 01:43:36,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-07 01:43:36,605 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-07 01:43:36,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-07 01:43:36,625 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-07 01:43:38,060 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 07.12 01:43:38 BoogieIcfgContainer [2021-12-07 01:43:38,061 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2021-12-07 01:43:38,061 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-12-07 01:43:38,061 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-12-07 01:43:38,061 INFO L275 PluginConnector]: Witness Printer initialized [2021-12-07 01:43:38,061 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 01:43:32" (3/4) ... [2021-12-07 01:43:38,063 INFO L134 WitnessPrinter]: Generating witness for non-termination counterexample [2021-12-07 01:43:38,084 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0da695f-68a6-4f6d-a2be-191a66da1d46/bin/uautomizer-DrprNOufMa/witness.graphml [2021-12-07 01:43:38,084 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-12-07 01:43:38,085 INFO L158 Benchmark]: Toolchain (without parser) took 5818.39ms. Allocated memory was 107.0MB in the beginning and 132.1MB in the end (delta: 25.2MB). Free memory was 68.2MB in the beginning and 79.7MB in the end (delta: -11.5MB). Peak memory consumption was 16.3MB. Max. memory is 16.1GB. [2021-12-07 01:43:38,085 INFO L158 Benchmark]: CDTParser took 0.13ms. Allocated memory is still 107.0MB. Free memory is still 85.6MB. There was no memory consumed. Max. memory is 16.1GB. [2021-12-07 01:43:38,085 INFO L158 Benchmark]: CACSL2BoogieTranslator took 286.96ms. Allocated memory is still 107.0MB. Free memory was 68.0MB in the beginning and 80.6MB in the end (delta: -12.6MB). Peak memory consumption was 15.6MB. Max. memory is 16.1GB. [2021-12-07 01:43:38,086 INFO L158 Benchmark]: Boogie Procedure Inliner took 36.82ms. Allocated memory is still 107.0MB. Free memory was 80.6MB in the beginning and 78.9MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-12-07 01:43:38,086 INFO L158 Benchmark]: Boogie Preprocessor took 18.39ms. Allocated memory is still 107.0MB. Free memory was 78.9MB in the beginning and 77.5MB in the end (delta: 1.4MB). There was no memory consumed. Max. memory is 16.1GB. [2021-12-07 01:43:38,086 INFO L158 Benchmark]: RCFGBuilder took 264.43ms. Allocated memory is still 107.0MB. Free memory was 77.5MB in the beginning and 66.3MB in the end (delta: 11.2MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2021-12-07 01:43:38,086 INFO L158 Benchmark]: BuchiAutomizer took 5184.12ms. Allocated memory was 107.0MB in the beginning and 132.1MB in the end (delta: 25.2MB). Free memory was 65.9MB in the beginning and 81.8MB in the end (delta: -15.9MB). Peak memory consumption was 62.3MB. Max. memory is 16.1GB. [2021-12-07 01:43:38,087 INFO L158 Benchmark]: Witness Printer took 23.58ms. Allocated memory is still 132.1MB. Free memory was 81.8MB in the beginning and 79.7MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-12-07 01:43:38,088 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.13ms. Allocated memory is still 107.0MB. Free memory is still 85.6MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 286.96ms. Allocated memory is still 107.0MB. Free memory was 68.0MB in the beginning and 80.6MB in the end (delta: -12.6MB). Peak memory consumption was 15.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 36.82ms. Allocated memory is still 107.0MB. Free memory was 80.6MB in the beginning and 78.9MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 18.39ms. Allocated memory is still 107.0MB. Free memory was 78.9MB in the beginning and 77.5MB in the end (delta: 1.4MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 264.43ms. Allocated memory is still 107.0MB. Free memory was 77.5MB in the beginning and 66.3MB in the end (delta: 11.2MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * BuchiAutomizer took 5184.12ms. Allocated memory was 107.0MB in the beginning and 132.1MB in the end (delta: 25.2MB). Free memory was 65.9MB in the beginning and 81.8MB in the end (delta: -15.9MB). Peak memory consumption was 62.3MB. Max. memory is 16.1GB. * Witness Printer took 23.58ms. Allocated memory is still 132.1MB. Free memory was 81.8MB in the beginning and 79.7MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 5 terminating modules (4 trivial, 1 deterministic, 0 nondeterministic) and one nonterminating remainder module.One deterministic module has affine ranking function \old(n) and consists of 5 locations. 4 modules have a trivial ranking function, the largest among these consists of 20 locations. The remainder module has 31 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 5.1s and 6 iterations. TraceHistogramMax:2. Analysis of lassos took 4.5s. Construction of modules took 0.1s. Büchi inclusion checks took 0.3s. Highest rank in rank-based complementation 3. Minimization of det autom 0. Minimization of nondet autom 5. Automata minimization 0.0s AutomataMinimizationTime, 5 MinimizatonAttempts, 12 StatesRemovedByMinimization, 4 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 31 states and ocurred in iteration 4. Nontrivial modules had stage [1, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 68 SdHoareTripleChecker+Valid, 0.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 65 mSDsluCounter, 376 SdHoareTripleChecker+Invalid, 0.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 295 mSDsCounter, 29 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 338 IncrementalHoareTripleChecker+Invalid, 367 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 29 mSolverCounterUnsat, 81 mSDtfsCounter, 338 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown LassoAnalysisResults: nont1 unkn0 SFLI0 SFLT0 conc1 concLT0 SILN0 SILU3 SILI0 SILT0 lasso1 LassoPreprocessingBenchmarks: Lassos: inital142 mio100 ax100 hnf100 lsp95 ukn30 mio100 lsp41 div100 bol100 ite100 ukn100 eq217 hnf86 smp100 dnf118 smp100 tf100 neg94 sie111 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: sat Degree: 0 Time: 64ms VariablesStem: 1 VariablesLoop: 2 DisjunctsStem: 1 DisjunctsLoop: 2 SupportingInvariants: 4 MotzkinApplications: 16 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: 555]: Nontermination argument in form of an infinite program execution. Nontermination argument in form of an infinite execution State at position 0 is {NULL=6467} State at position 1 is {x=0, NULL=0, y=0, \result=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFieldReference@10b09477=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@863b637=0, NULL=6467, xs=0, y=0, x=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@7d1f60e1=0, \result=0, x=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@241ab2f1=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFieldReference@5cf1158c=0, n=0, x=0, s=0, x=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@7d1f60e1=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFieldReference@10b09477=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@733c8041=0, s=0, x=0, \result=0, y=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFieldReference@628914bc=0, y=0, NULL=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFieldReference@5cf1158c=0, xs=6466, y=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFieldReference@628914bc=0, NULL=0, y=0, xs=0, xs=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@3b9830be=0, y_length=0, \result=0, NULL=0, NULL=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@863b637=0} - StatisticsResult: NonterminationArgumentStatistics Fixpoint - NonterminatingLassoResult [Line: 555]: Nonterminating execution Found a nonterminating execution for the following lasso shaped sequence of statements. Stem: [L573] int n = __VERIFIER_nondet_int(); [L574] COND FALSE !(n < 1) [L577] CALL, EXPR new_ll(n) [L548] COND FALSE !(n == 0) [L550] node_t* head = malloc(sizeof(node_t)); [L551] head->val = n [L552] CALL, EXPR new_ll(n-1) [L548] COND TRUE n == 0 [L549] return ((void *)0); [L552] RET, EXPR new_ll(n-1) [L552] head->next = new_ll(n-1) [L553] return head; [L577] RET, EXPR new_ll(n) [L577] node_t* x = new_ll(n); [L578] CALL, EXPR append(x, x) [L563] COND FALSE !(x == ((void *)0)) [L565] node_t* s = x; [L566] EXPR x->next [L566] COND FALSE !(x->next != ((void *)0)) [L568] x->next = y [L569] return s; [L578] RET, EXPR append(x, x) [L578] node_t* y = append(x, x); [L579] CALL length(y) Loop: [L557] COND FALSE !(xs == ((void *)0)) [L559] EXPR xs->next [L559] CALL length(xs->next) End of lasso representation. RESULT: Ultimate proved your program to be incorrect! [2021-12-07 01:43:38,120 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0da695f-68a6-4f6d-a2be-191a66da1d46/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (33)] Ended with exit code 0 [2021-12-07 01:43:38,320 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0da695f-68a6-4f6d-a2be-191a66da1d46/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE(TERM)