./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/array-memsafety/java_BubbleSort-alloca-1.i --full-output --architecture 32bit -------------------------------------------------------------------------------- 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_4fd24422-a763-4b95-b367-c2bd5e1ca139/bin/uautomizer-DrprNOufMa/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4fd24422-a763-4b95-b367-c2bd5e1ca139/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_4fd24422-a763-4b95-b367-c2bd5e1ca139/bin/uautomizer-DrprNOufMa/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4fd24422-a763-4b95-b367-c2bd5e1ca139/bin/uautomizer-DrprNOufMa/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/array-memsafety/java_BubbleSort-alloca-1.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4fd24422-a763-4b95-b367-c2bd5e1ca139/bin/uautomizer-DrprNOufMa/config/svcomp-Termination-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4fd24422-a763-4b95-b367-c2bd5e1ca139/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 32bit --witnessprinter.graph.data.programhash ba885d2ca843c278430bc3d4272c307ea7df8f1fbcd0da84e81382a8c1939a93 --- Real Ultimate output --- This is Ultimate 0.2.2-hotfix-svcomp22-839c364 [2021-12-07 00:24:14,487 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-12-07 00:24:14,489 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-12-07 00:24:14,517 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-12-07 00:24:14,518 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-12-07 00:24:14,519 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-12-07 00:24:14,521 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-12-07 00:24:14,523 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-12-07 00:24:14,525 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-12-07 00:24:14,526 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-12-07 00:24:14,527 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-12-07 00:24:14,529 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-12-07 00:24:14,529 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-12-07 00:24:14,530 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-12-07 00:24:14,532 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-12-07 00:24:14,533 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-12-07 00:24:14,534 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-12-07 00:24:14,535 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-12-07 00:24:14,538 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-12-07 00:24:14,540 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-12-07 00:24:14,542 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-12-07 00:24:14,543 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-12-07 00:24:14,545 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-12-07 00:24:14,546 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-12-07 00:24:14,549 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-12-07 00:24:14,549 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-12-07 00:24:14,550 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-12-07 00:24:14,551 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-12-07 00:24:14,551 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-12-07 00:24:14,553 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-12-07 00:24:14,553 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-12-07 00:24:14,553 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-12-07 00:24:14,554 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-12-07 00:24:14,555 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-12-07 00:24:14,556 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-12-07 00:24:14,556 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-12-07 00:24:14,556 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-12-07 00:24:14,557 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-12-07 00:24:14,557 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-12-07 00:24:14,557 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-12-07 00:24:14,558 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-12-07 00:24:14,559 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4fd24422-a763-4b95-b367-c2bd5e1ca139/bin/uautomizer-DrprNOufMa/config/svcomp-Termination-32bit-Automizer_Default.epf [2021-12-07 00:24:14,581 INFO L113 SettingsManager]: Loading preferences was successful [2021-12-07 00:24:14,582 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-12-07 00:24:14,582 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-12-07 00:24:14,582 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-12-07 00:24:14,583 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-12-07 00:24:14,583 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-12-07 00:24:14,583 INFO L138 SettingsManager]: * Use SBE=true [2021-12-07 00:24:14,583 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2021-12-07 00:24:14,584 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2021-12-07 00:24:14,584 INFO L138 SettingsManager]: * Use old map elimination=false [2021-12-07 00:24:14,584 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2021-12-07 00:24:14,584 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2021-12-07 00:24:14,584 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2021-12-07 00:24:14,584 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-12-07 00:24:14,584 INFO L138 SettingsManager]: * sizeof long=4 [2021-12-07 00:24:14,585 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-12-07 00:24:14,585 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-12-07 00:24:14,585 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-12-07 00:24:14,585 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-12-07 00:24:14,585 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2021-12-07 00:24:14,585 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2021-12-07 00:24:14,585 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2021-12-07 00:24:14,585 INFO L138 SettingsManager]: * sizeof long double=12 [2021-12-07 00:24:14,586 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-12-07 00:24:14,586 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2021-12-07 00:24:14,586 INFO L138 SettingsManager]: * Use constant arrays=true [2021-12-07 00:24:14,586 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2021-12-07 00:24:14,586 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-12-07 00:24:14,586 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-12-07 00:24:14,586 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-12-07 00:24:14,586 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-12-07 00:24:14,587 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-12-07 00:24:14,587 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2021-12-07 00:24:14,587 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_4fd24422-a763-4b95-b367-c2bd5e1ca139/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4fd24422-a763-4b95-b367-c2bd5e1ca139/bin/uautomizer-DrprNOufMa Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> ba885d2ca843c278430bc3d4272c307ea7df8f1fbcd0da84e81382a8c1939a93 [2021-12-07 00:24:14,760 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-12-07 00:24:14,777 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-12-07 00:24:14,779 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-12-07 00:24:14,780 INFO L271 PluginConnector]: Initializing CDTParser... [2021-12-07 00:24:14,780 INFO L275 PluginConnector]: CDTParser initialized [2021-12-07 00:24:14,781 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4fd24422-a763-4b95-b367-c2bd5e1ca139/bin/uautomizer-DrprNOufMa/../../sv-benchmarks/c/array-memsafety/java_BubbleSort-alloca-1.i [2021-12-07 00:24:14,821 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4fd24422-a763-4b95-b367-c2bd5e1ca139/bin/uautomizer-DrprNOufMa/data/94a339d3c/5edec3b88d084d39b774d9bbf3731743/FLAG1ddc575c1 [2021-12-07 00:24:15,228 INFO L306 CDTParser]: Found 1 translation units. [2021-12-07 00:24:15,229 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4fd24422-a763-4b95-b367-c2bd5e1ca139/sv-benchmarks/c/array-memsafety/java_BubbleSort-alloca-1.i [2021-12-07 00:24:15,237 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4fd24422-a763-4b95-b367-c2bd5e1ca139/bin/uautomizer-DrprNOufMa/data/94a339d3c/5edec3b88d084d39b774d9bbf3731743/FLAG1ddc575c1 [2021-12-07 00:24:15,247 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4fd24422-a763-4b95-b367-c2bd5e1ca139/bin/uautomizer-DrprNOufMa/data/94a339d3c/5edec3b88d084d39b774d9bbf3731743 [2021-12-07 00:24:15,248 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-12-07 00:24:15,249 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-12-07 00:24:15,251 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-12-07 00:24:15,251 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-12-07 00:24:15,253 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-12-07 00:24:15,254 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.12 12:24:15" (1/1) ... [2021-12-07 00:24:15,255 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@415d370a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 12:24:15, skipping insertion in model container [2021-12-07 00:24:15,255 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.12 12:24:15" (1/1) ... [2021-12-07 00:24:15,260 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-12-07 00:24:15,289 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-12-07 00:24:15,483 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-07 00:24:15,488 INFO L203 MainTranslator]: Completed pre-run [2021-12-07 00:24:15,516 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-07 00:24:15,535 INFO L208 MainTranslator]: Completed translation [2021-12-07 00:24:15,535 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 12:24:15 WrapperNode [2021-12-07 00:24:15,535 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-12-07 00:24:15,536 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-12-07 00:24:15,536 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-12-07 00:24:15,536 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-12-07 00:24:15,542 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 12:24:15" (1/1) ... [2021-12-07 00:24:15,555 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 12:24:15" (1/1) ... [2021-12-07 00:24:15,575 INFO L137 Inliner]: procedures = 116, calls = 13, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 62 [2021-12-07 00:24:15,575 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-12-07 00:24:15,576 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-12-07 00:24:15,576 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-12-07 00:24:15,576 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-12-07 00:24:15,584 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 12:24:15" (1/1) ... [2021-12-07 00:24:15,584 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 12:24:15" (1/1) ... [2021-12-07 00:24:15,587 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 12:24:15" (1/1) ... [2021-12-07 00:24:15,587 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 12:24:15" (1/1) ... [2021-12-07 00:24:15,592 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 12:24:15" (1/1) ... [2021-12-07 00:24:15,597 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 12:24:15" (1/1) ... [2021-12-07 00:24:15,598 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 12:24:15" (1/1) ... [2021-12-07 00:24:15,600 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-12-07 00:24:15,601 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-12-07 00:24:15,601 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-12-07 00:24:15,602 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-12-07 00:24:15,602 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 12:24:15" (1/1) ... [2021-12-07 00:24:15,609 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-07 00:24:15,619 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4fd24422-a763-4b95-b367-c2bd5e1ca139/bin/uautomizer-DrprNOufMa/z3 [2021-12-07 00:24:15,630 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4fd24422-a763-4b95-b367-c2bd5e1ca139/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-07 00:24:15,632 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4fd24422-a763-4b95-b367-c2bd5e1ca139/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2021-12-07 00:24:15,667 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-12-07 00:24:15,668 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-12-07 00:24:15,668 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-12-07 00:24:15,668 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-12-07 00:24:15,668 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-12-07 00:24:15,668 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-12-07 00:24:15,733 INFO L236 CfgBuilder]: Building ICFG [2021-12-07 00:24:15,734 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-12-07 00:24:15,840 INFO L277 CfgBuilder]: Performing block encoding [2021-12-07 00:24:15,846 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-12-07 00:24:15,846 INFO L301 CfgBuilder]: Removed 3 assume(true) statements. [2021-12-07 00:24:15,848 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 12:24:15 BoogieIcfgContainer [2021-12-07 00:24:15,848 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-12-07 00:24:15,849 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2021-12-07 00:24:15,849 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2021-12-07 00:24:15,853 INFO L275 PluginConnector]: BuchiAutomizer initialized [2021-12-07 00:24:15,854 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-12-07 00:24:15,854 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 07.12 12:24:15" (1/3) ... [2021-12-07 00:24:15,855 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@12303527 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 07.12 12:24:15, skipping insertion in model container [2021-12-07 00:24:15,855 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-12-07 00:24:15,855 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 12:24:15" (2/3) ... [2021-12-07 00:24:15,856 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@12303527 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 07.12 12:24:15, skipping insertion in model container [2021-12-07 00:24:15,856 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-12-07 00:24:15,856 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 12:24:15" (3/3) ... [2021-12-07 00:24:15,857 INFO L388 chiAutomizerObserver]: Analyzing ICFG java_BubbleSort-alloca-1.i [2021-12-07 00:24:15,893 INFO L359 BuchiCegarLoop]: Interprodecural is true [2021-12-07 00:24:15,893 INFO L360 BuchiCegarLoop]: Hoare is false [2021-12-07 00:24:15,893 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2021-12-07 00:24:15,893 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2021-12-07 00:24:15,893 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-12-07 00:24:15,893 INFO L364 BuchiCegarLoop]: Difference is false [2021-12-07 00:24:15,893 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-12-07 00:24:15,893 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2021-12-07 00:24:15,903 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 16 states, 15 states have (on average 1.5333333333333334) internal successors, (23), 15 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-07 00:24:15,919 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 7 [2021-12-07 00:24:15,919 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-12-07 00:24:15,919 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-12-07 00:24:15,924 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1] [2021-12-07 00:24:15,925 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2021-12-07 00:24:15,925 INFO L425 BuchiCegarLoop]: ======== Iteration 1============ [2021-12-07 00:24:15,925 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 16 states, 15 states have (on average 1.5333333333333334) internal successors, (23), 15 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-07 00:24:15,926 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 7 [2021-12-07 00:24:15,926 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-12-07 00:24:15,926 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-12-07 00:24:15,926 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1] [2021-12-07 00:24:15,927 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2021-12-07 00:24:15,931 INFO L791 eck$LassoCheckResult]: Stem: 4#ULTIMATE.startENTRYtrue assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier; 11#L-1true assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet8#1, main_#t~malloc9#1.base, main_#t~malloc9#1.offset, main_#t~nondet11#1, main_#t~post10#1, main_~i~1#1, main_~array_size~0#1, main_~numbers~0#1.base, main_~numbers~0#1.offset;main_~array_size~0#1 := main_#t~nondet8#1;havoc main_#t~nondet8#1; 13#L523true assume !(main_~array_size~0#1 < 1 || main_~array_size~0#1 % 4294967296 >= 536870911); 14#L523-2true call main_#t~malloc9#1.base, main_#t~malloc9#1.offset := #Ultimate.allocOnStack(4 * main_~array_size~0#1);main_~numbers~0#1.base, main_~numbers~0#1.offset := main_#t~malloc9#1.base, main_#t~malloc9#1.offset;main_~i~1#1 := 0; 6#L528-3true [2021-12-07 00:24:15,931 INFO L793 eck$LassoCheckResult]: Loop: 6#L528-3true assume !!(main_~i~1#1 < main_~array_size~0#1);call write~int(main_#t~nondet11#1, main_~numbers~0#1.base, main_~numbers~0#1.offset + 4 * main_~i~1#1, 4);havoc main_#t~nondet11#1; 10#L528-2true main_#t~post10#1 := main_~i~1#1;main_~i~1#1 := 1 + main_#t~post10#1;havoc main_#t~post10#1; 6#L528-3true [2021-12-07 00:24:15,937 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-07 00:24:15,937 INFO L85 PathProgramCache]: Analyzing trace with hash 925669, now seen corresponding path program 1 times [2021-12-07 00:24:15,944 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-07 00:24:15,944 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1854244025] [2021-12-07 00:24:15,944 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-07 00:24:15,945 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-07 00:24:16,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-07 00:24:16,014 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-07 00:24:16,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-07 00:24:16,035 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-07 00:24:16,037 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-07 00:24:16,037 INFO L85 PathProgramCache]: Analyzing trace with hash 1507, now seen corresponding path program 1 times [2021-12-07 00:24:16,037 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-07 00:24:16,037 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1690989051] [2021-12-07 00:24:16,037 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-07 00:24:16,038 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-07 00:24:16,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-07 00:24:16,046 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-07 00:24:16,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-07 00:24:16,053 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-07 00:24:16,054 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-07 00:24:16,054 INFO L85 PathProgramCache]: Analyzing trace with hash 889568455, now seen corresponding path program 1 times [2021-12-07 00:24:16,054 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-07 00:24:16,055 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1417045045] [2021-12-07 00:24:16,055 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-07 00:24:16,055 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-07 00:24:16,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-07 00:24:16,083 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-07 00:24:16,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-07 00:24:16,103 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-07 00:24:16,288 INFO L210 LassoAnalysis]: Preferences: [2021-12-07 00:24:16,288 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-12-07 00:24:16,289 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-12-07 00:24:16,289 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-12-07 00:24:16,289 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2021-12-07 00:24:16,289 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-07 00:24:16,289 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-12-07 00:24:16,289 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-12-07 00:24:16,289 INFO L133 ssoRankerPreferences]: Filename of dumped script: java_BubbleSort-alloca-1.i_Iteration1_Lasso [2021-12-07 00:24:16,289 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-12-07 00:24:16,290 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-12-07 00:24:16,305 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-07 00:24:16,310 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-07 00:24:16,313 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-07 00:24:16,315 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 00:24:16,317 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 00:24:16,379 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 00:24:16,381 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 00:24:16,383 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 00:24:16,385 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 00:24:16,530 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-12-07 00:24:16,533 INFO L490 LassoAnalysis]: Using template 'affine'. [2021-12-07 00:24:16,535 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-07 00:24:16,535 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4fd24422-a763-4b95-b367-c2bd5e1ca139/bin/uautomizer-DrprNOufMa/z3 [2021-12-07 00:24:16,536 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4fd24422-a763-4b95-b367-c2bd5e1ca139/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-07 00:24:16,536 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4fd24422-a763-4b95-b367-c2bd5e1ca139/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Waiting until timeout for monitored process [2021-12-07 00:24:16,537 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 00:24:16,545 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-07 00:24:16,545 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-12-07 00:24:16,545 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-07 00:24:16,545 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-07 00:24:16,545 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-07 00:24:16,547 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-12-07 00:24:16,547 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-12-07 00:24:16,549 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-07 00:24:16,568 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4fd24422-a763-4b95-b367-c2bd5e1ca139/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Forceful destruction successful, exit code 0 [2021-12-07 00:24:16,568 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-07 00:24:16,568 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4fd24422-a763-4b95-b367-c2bd5e1ca139/bin/uautomizer-DrprNOufMa/z3 [2021-12-07 00:24:16,569 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4fd24422-a763-4b95-b367-c2bd5e1ca139/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-07 00:24:16,570 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4fd24422-a763-4b95-b367-c2bd5e1ca139/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Waiting until timeout for monitored process [2021-12-07 00:24:16,571 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 00:24:16,578 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-07 00:24:16,578 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-07 00:24:16,578 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-07 00:24:16,578 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-07 00:24:16,580 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-12-07 00:24:16,580 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-12-07 00:24:16,583 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-07 00:24:16,601 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4fd24422-a763-4b95-b367-c2bd5e1ca139/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Ended with exit code 0 [2021-12-07 00:24:16,602 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-07 00:24:16,602 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4fd24422-a763-4b95-b367-c2bd5e1ca139/bin/uautomizer-DrprNOufMa/z3 [2021-12-07 00:24:16,603 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4fd24422-a763-4b95-b367-c2bd5e1ca139/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-07 00:24:16,603 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4fd24422-a763-4b95-b367-c2bd5e1ca139/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Waiting until timeout for monitored process [2021-12-07 00:24:16,604 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 00:24:16,611 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-07 00:24:16,611 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-12-07 00:24:16,611 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-07 00:24:16,611 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-07 00:24:16,611 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-07 00:24:16,612 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-12-07 00:24:16,612 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-12-07 00:24:16,613 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-07 00:24:16,644 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4fd24422-a763-4b95-b367-c2bd5e1ca139/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Ended with exit code 0 [2021-12-07 00:24:16,644 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-07 00:24:16,644 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4fd24422-a763-4b95-b367-c2bd5e1ca139/bin/uautomizer-DrprNOufMa/z3 [2021-12-07 00:24:16,645 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4fd24422-a763-4b95-b367-c2bd5e1ca139/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-07 00:24:16,646 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4fd24422-a763-4b95-b367-c2bd5e1ca139/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Waiting until timeout for monitored process [2021-12-07 00:24:16,646 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-12-07 00:24:16,655 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-07 00:24:16,655 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-07 00:24:16,655 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-07 00:24:16,655 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-07 00:24:16,663 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-12-07 00:24:16,663 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-12-07 00:24:16,667 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-07 00:24:16,686 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4fd24422-a763-4b95-b367-c2bd5e1ca139/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Ended with exit code 0 [2021-12-07 00:24:16,686 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-07 00:24:16,686 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4fd24422-a763-4b95-b367-c2bd5e1ca139/bin/uautomizer-DrprNOufMa/z3 [2021-12-07 00:24:16,687 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4fd24422-a763-4b95-b367-c2bd5e1ca139/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-07 00:24:16,688 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4fd24422-a763-4b95-b367-c2bd5e1ca139/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Waiting until timeout for monitored process [2021-12-07 00:24:16,688 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 00:24:16,697 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-07 00:24:16,697 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-07 00:24:16,697 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-07 00:24:16,697 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-07 00:24:16,700 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-12-07 00:24:16,700 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-12-07 00:24:16,704 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-07 00:24:16,723 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4fd24422-a763-4b95-b367-c2bd5e1ca139/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Ended with exit code 0 [2021-12-07 00:24:16,723 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-07 00:24:16,723 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4fd24422-a763-4b95-b367-c2bd5e1ca139/bin/uautomizer-DrprNOufMa/z3 [2021-12-07 00:24:16,724 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4fd24422-a763-4b95-b367-c2bd5e1ca139/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-07 00:24:16,724 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4fd24422-a763-4b95-b367-c2bd5e1ca139/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Waiting until timeout for monitored process [2021-12-07 00:24:16,725 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 00:24:16,732 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-07 00:24:16,732 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-12-07 00:24:16,732 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-07 00:24:16,732 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-07 00:24:16,732 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-07 00:24:16,733 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-12-07 00:24:16,733 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-12-07 00:24:16,735 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-07 00:24:16,765 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4fd24422-a763-4b95-b367-c2bd5e1ca139/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Ended with exit code 0 [2021-12-07 00:24:16,766 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-07 00:24:16,766 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4fd24422-a763-4b95-b367-c2bd5e1ca139/bin/uautomizer-DrprNOufMa/z3 [2021-12-07 00:24:16,766 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4fd24422-a763-4b95-b367-c2bd5e1ca139/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-07 00:24:16,767 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4fd24422-a763-4b95-b367-c2bd5e1ca139/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Waiting until timeout for monitored process [2021-12-07 00:24:16,767 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 00:24:16,774 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-07 00:24:16,775 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-07 00:24:16,775 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-07 00:24:16,775 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-07 00:24:16,778 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-12-07 00:24:16,778 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-12-07 00:24:16,782 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-07 00:24:16,801 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4fd24422-a763-4b95-b367-c2bd5e1ca139/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Ended with exit code 0 [2021-12-07 00:24:16,801 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-07 00:24:16,801 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4fd24422-a763-4b95-b367-c2bd5e1ca139/bin/uautomizer-DrprNOufMa/z3 [2021-12-07 00:24:16,802 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4fd24422-a763-4b95-b367-c2bd5e1ca139/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-07 00:24:16,802 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4fd24422-a763-4b95-b367-c2bd5e1ca139/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Waiting until timeout for monitored process [2021-12-07 00:24:16,803 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 00:24:16,810 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-07 00:24:16,810 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-07 00:24:16,810 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-07 00:24:16,811 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-07 00:24:16,813 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-12-07 00:24:16,813 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-12-07 00:24:16,816 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-07 00:24:16,834 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4fd24422-a763-4b95-b367-c2bd5e1ca139/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Ended with exit code 0 [2021-12-07 00:24:16,835 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-07 00:24:16,835 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4fd24422-a763-4b95-b367-c2bd5e1ca139/bin/uautomizer-DrprNOufMa/z3 [2021-12-07 00:24:16,836 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4fd24422-a763-4b95-b367-c2bd5e1ca139/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-07 00:24:16,836 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4fd24422-a763-4b95-b367-c2bd5e1ca139/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Waiting until timeout for monitored process [2021-12-07 00:24:16,837 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 00:24:16,844 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-07 00:24:16,844 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-12-07 00:24:16,844 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-07 00:24:16,844 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-07 00:24:16,844 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-07 00:24:16,844 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-12-07 00:24:16,844 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-12-07 00:24:16,845 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-07 00:24:16,864 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4fd24422-a763-4b95-b367-c2bd5e1ca139/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Ended with exit code 0 [2021-12-07 00:24:16,864 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-07 00:24:16,865 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4fd24422-a763-4b95-b367-c2bd5e1ca139/bin/uautomizer-DrprNOufMa/z3 [2021-12-07 00:24:16,865 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4fd24422-a763-4b95-b367-c2bd5e1ca139/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-07 00:24:16,866 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4fd24422-a763-4b95-b367-c2bd5e1ca139/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Waiting until timeout for monitored process [2021-12-07 00:24:16,866 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 00:24:16,873 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-07 00:24:16,874 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-07 00:24:16,874 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-07 00:24:16,874 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-07 00:24:16,878 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-12-07 00:24:16,879 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-12-07 00:24:16,888 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2021-12-07 00:24:16,915 INFO L443 ModelExtractionUtils]: Simplification made 14 calls to the SMT solver. [2021-12-07 00:24:16,915 INFO L444 ModelExtractionUtils]: 8 out of 22 variables were initially zero. Simplification set additionally 9 variables to zero. [2021-12-07 00:24:16,916 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-07 00:24:16,916 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4fd24422-a763-4b95-b367-c2bd5e1ca139/bin/uautomizer-DrprNOufMa/z3 [2021-12-07 00:24:16,917 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4fd24422-a763-4b95-b367-c2bd5e1ca139/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-07 00:24:16,922 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4fd24422-a763-4b95-b367-c2bd5e1ca139/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Waiting until timeout for monitored process [2021-12-07 00:24:16,923 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2021-12-07 00:24:16,931 INFO L438 nArgumentSynthesizer]: Removed 1 redundant supporting invariants from a total of 2. [2021-12-07 00:24:16,931 INFO L513 LassoAnalysis]: Proved termination. [2021-12-07 00:24:16,931 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~i~1#1, v_rep(select #length ULTIMATE.start_main_#t~malloc9#1.base)_1) = -2*ULTIMATE.start_main_~i~1#1 + 1*v_rep(select #length ULTIMATE.start_main_#t~malloc9#1.base)_1 Supporting invariants [1*v_rep(select #length ULTIMATE.start_main_#t~malloc9#1.base)_1 - 2*ULTIMATE.start_main_~array_size~0#1 >= 0] [2021-12-07 00:24:16,951 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4fd24422-a763-4b95-b367-c2bd5e1ca139/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Ended with exit code 0 [2021-12-07 00:24:16,962 INFO L297 tatePredicateManager]: 3 out of 4 supporting invariants were superfluous and have been removed [2021-12-07 00:24:16,992 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-07 00:24:17,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:24:17,002 INFO L263 TraceCheckSpWp]: Trace formula consists of 30 conjuncts, 5 conjunts are in the unsatisfiable core [2021-12-07 00:24:17,003 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-07 00:24:17,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:24:17,025 INFO L263 TraceCheckSpWp]: Trace formula consists of 14 conjuncts, 5 conjunts are in the unsatisfiable core [2021-12-07 00:24:17,025 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-07 00:24:17,045 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 00:24:17,069 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.2 stem predicates 2 loop predicates [2021-12-07 00:24:17,070 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand has 16 states, 15 states have (on average 1.5333333333333334) internal successors, (23), 15 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 4 states, 4 states have (on average 1.5) internal successors, (6), 4 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-07 00:24:17,123 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand has 16 states, 15 states have (on average 1.5333333333333334) internal successors, (23), 15 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0). Second operand has 4 states, 4 states have (on average 1.5) internal successors, (6), 4 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 35 states and 53 transitions. Complement of second has 9 states. [2021-12-07 00:24:17,124 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 6 states 2 stem states 2 non-accepting loop states 1 accepting loop states [2021-12-07 00:24:17,128 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4 states, 4 states have (on average 1.5) internal successors, (6), 4 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-07 00:24:17,128 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 34 transitions. [2021-12-07 00:24:17,129 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states and 34 transitions. Stem has 4 letters. Loop has 2 letters. [2021-12-07 00:24:17,130 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-12-07 00:24:17,130 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states and 34 transitions. Stem has 6 letters. Loop has 2 letters. [2021-12-07 00:24:17,130 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-12-07 00:24:17,130 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states and 34 transitions. Stem has 4 letters. Loop has 4 letters. [2021-12-07 00:24:17,130 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-12-07 00:24:17,131 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 35 states and 53 transitions. [2021-12-07 00:24:17,133 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 5 [2021-12-07 00:24:17,135 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 35 states to 13 states and 18 transitions. [2021-12-07 00:24:17,136 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 10 [2021-12-07 00:24:17,136 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 11 [2021-12-07 00:24:17,136 INFO L73 IsDeterministic]: Start isDeterministic. Operand 13 states and 18 transitions. [2021-12-07 00:24:17,137 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-12-07 00:24:17,137 INFO L681 BuchiCegarLoop]: Abstraction has 13 states and 18 transitions. [2021-12-07 00:24:17,148 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13 states and 18 transitions. [2021-12-07 00:24:17,154 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13 to 13. [2021-12-07 00:24:17,154 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13 states, 13 states have (on average 1.3846153846153846) internal successors, (18), 12 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-07 00:24:17,155 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 18 transitions. [2021-12-07 00:24:17,155 INFO L704 BuchiCegarLoop]: Abstraction has 13 states and 18 transitions. [2021-12-07 00:24:17,156 INFO L587 BuchiCegarLoop]: Abstraction has 13 states and 18 transitions. [2021-12-07 00:24:17,156 INFO L425 BuchiCegarLoop]: ======== Iteration 2============ [2021-12-07 00:24:17,156 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 13 states and 18 transitions. [2021-12-07 00:24:17,156 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 5 [2021-12-07 00:24:17,157 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-12-07 00:24:17,157 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-12-07 00:24:17,157 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2021-12-07 00:24:17,157 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2021-12-07 00:24:17,157 INFO L791 eck$LassoCheckResult]: Stem: 121#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier; 122#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet8#1, main_#t~malloc9#1.base, main_#t~malloc9#1.offset, main_#t~nondet11#1, main_#t~post10#1, main_~i~1#1, main_~array_size~0#1, main_~numbers~0#1.base, main_~numbers~0#1.offset;main_~array_size~0#1 := main_#t~nondet8#1;havoc main_#t~nondet8#1; 123#L523 assume !(main_~array_size~0#1 < 1 || main_~array_size~0#1 % 4294967296 >= 536870911); 124#L523-2 call main_#t~malloc9#1.base, main_#t~malloc9#1.offset := #Ultimate.allocOnStack(4 * main_~array_size~0#1);main_~numbers~0#1.base, main_~numbers~0#1.offset := main_#t~malloc9#1.base, main_#t~malloc9#1.offset;main_~i~1#1 := 0; 127#L528-3 assume !(main_~i~1#1 < main_~array_size~0#1); 125#L528-4 assume { :begin_inline_sort } true;sort_#in~x#1.base, sort_#in~x#1.offset, sort_#in~n#1 := main_~numbers~0#1.base, main_~numbers~0#1.offset, main_~array_size~0#1;havoc sort_#t~mem4#1, sort_#t~mem5#1, sort_#t~mem6#1, sort_#t~mem7#1, sort_~temp~0#1, sort_#t~post3#1, sort_#t~post2#1, sort_~x#1.base, sort_~x#1.offset, sort_~n#1, sort_~pass~0#1, sort_~i~0#1;sort_~x#1.base, sort_~x#1.offset := sort_#in~x#1.base, sort_#in~x#1.offset;sort_~n#1 := sort_#in~n#1;havoc sort_~pass~0#1;havoc sort_~i~0#1;sort_~pass~0#1 := 1; 126#L515-3 [2021-12-07 00:24:17,158 INFO L793 eck$LassoCheckResult]: Loop: 126#L515-3 assume !!(sort_~pass~0#1 < sort_~n#1);sort_~i~0#1 := 0; 130#L516-3 assume !(sort_~i~0#1 < sort_~n#1 - sort_~pass~0#1); 131#L515-2 sort_#t~post2#1 := sort_~pass~0#1;sort_~pass~0#1 := 1 + sort_#t~post2#1;havoc sort_#t~post2#1; 126#L515-3 [2021-12-07 00:24:17,158 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-07 00:24:17,158 INFO L85 PathProgramCache]: Analyzing trace with hash 889568397, now seen corresponding path program 1 times [2021-12-07 00:24:17,158 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-07 00:24:17,159 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [734269350] [2021-12-07 00:24:17,159 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-07 00:24:17,159 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-07 00:24:17,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:24:17,199 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 00:24:17,199 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-07 00:24:17,199 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [734269350] [2021-12-07 00:24:17,200 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [734269350] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-07 00:24:17,200 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-07 00:24:17,200 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-12-07 00:24:17,200 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1569010205] [2021-12-07 00:24:17,200 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-07 00:24:17,202 INFO L796 eck$LassoCheckResult]: stem already infeasible [2021-12-07 00:24:17,202 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-07 00:24:17,202 INFO L85 PathProgramCache]: Analyzing trace with hash 60779, now seen corresponding path program 1 times [2021-12-07 00:24:17,202 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-07 00:24:17,203 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [335089464] [2021-12-07 00:24:17,203 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-07 00:24:17,203 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-07 00:24:17,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:24:17,213 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 00:24:17,213 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-07 00:24:17,213 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [335089464] [2021-12-07 00:24:17,213 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [335089464] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-07 00:24:17,214 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-07 00:24:17,214 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-12-07 00:24:17,214 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [71234588] [2021-12-07 00:24:17,214 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-07 00:24:17,214 INFO L808 eck$LassoCheckResult]: loop already infeasible [2021-12-07 00:24:17,214 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-07 00:24:17,216 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-07 00:24:17,216 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-07 00:24:17,217 INFO L87 Difference]: Start difference. First operand 13 states and 18 transitions. cyclomatic complexity: 7 Second operand has 3 states, 3 states have (on average 1.0) internal successors, (3), 2 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-07 00:24:17,229 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-07 00:24:17,229 INFO L93 Difference]: Finished difference Result 14 states and 19 transitions. [2021-12-07 00:24:17,230 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-07 00:24:17,230 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 14 states and 19 transitions. [2021-12-07 00:24:17,231 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 6 [2021-12-07 00:24:17,232 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 14 states to 14 states and 19 transitions. [2021-12-07 00:24:17,232 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 12 [2021-12-07 00:24:17,232 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 12 [2021-12-07 00:24:17,232 INFO L73 IsDeterministic]: Start isDeterministic. Operand 14 states and 19 transitions. [2021-12-07 00:24:17,232 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-12-07 00:24:17,232 INFO L681 BuchiCegarLoop]: Abstraction has 14 states and 19 transitions. [2021-12-07 00:24:17,232 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14 states and 19 transitions. [2021-12-07 00:24:17,233 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14 to 14. [2021-12-07 00:24:17,233 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14 states, 14 states have (on average 1.3571428571428572) internal successors, (19), 13 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-07 00:24:17,234 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 19 transitions. [2021-12-07 00:24:17,234 INFO L704 BuchiCegarLoop]: Abstraction has 14 states and 19 transitions. [2021-12-07 00:24:17,234 INFO L587 BuchiCegarLoop]: Abstraction has 14 states and 19 transitions. [2021-12-07 00:24:17,234 INFO L425 BuchiCegarLoop]: ======== Iteration 3============ [2021-12-07 00:24:17,234 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 14 states and 19 transitions. [2021-12-07 00:24:17,234 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 6 [2021-12-07 00:24:17,235 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-12-07 00:24:17,235 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-12-07 00:24:17,235 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2021-12-07 00:24:17,235 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1] [2021-12-07 00:24:17,235 INFO L791 eck$LassoCheckResult]: Stem: 156#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier; 157#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet8#1, main_#t~malloc9#1.base, main_#t~malloc9#1.offset, main_#t~nondet11#1, main_#t~post10#1, main_~i~1#1, main_~array_size~0#1, main_~numbers~0#1.base, main_~numbers~0#1.offset;main_~array_size~0#1 := main_#t~nondet8#1;havoc main_#t~nondet8#1; 158#L523 assume !(main_~array_size~0#1 < 1 || main_~array_size~0#1 % 4294967296 >= 536870911); 159#L523-2 call main_#t~malloc9#1.base, main_#t~malloc9#1.offset := #Ultimate.allocOnStack(4 * main_~array_size~0#1);main_~numbers~0#1.base, main_~numbers~0#1.offset := main_#t~malloc9#1.base, main_#t~malloc9#1.offset;main_~i~1#1 := 0; 162#L528-3 assume !(main_~i~1#1 < main_~array_size~0#1); 160#L528-4 assume { :begin_inline_sort } true;sort_#in~x#1.base, sort_#in~x#1.offset, sort_#in~n#1 := main_~numbers~0#1.base, main_~numbers~0#1.offset, main_~array_size~0#1;havoc sort_#t~mem4#1, sort_#t~mem5#1, sort_#t~mem6#1, sort_#t~mem7#1, sort_~temp~0#1, sort_#t~post3#1, sort_#t~post2#1, sort_~x#1.base, sort_~x#1.offset, sort_~n#1, sort_~pass~0#1, sort_~i~0#1;sort_~x#1.base, sort_~x#1.offset := sort_#in~x#1.base, sort_#in~x#1.offset;sort_~n#1 := sort_#in~n#1;havoc sort_~pass~0#1;havoc sort_~i~0#1;sort_~pass~0#1 := 1; 161#L515-3 [2021-12-07 00:24:17,236 INFO L793 eck$LassoCheckResult]: Loop: 161#L515-3 assume !!(sort_~pass~0#1 < sort_~n#1);sort_~i~0#1 := 0; 165#L516-3 assume !!(sort_~i~0#1 < sort_~n#1 - sort_~pass~0#1);call sort_#t~mem4#1 := read~int(sort_~x#1.base, sort_~x#1.offset + 4 * sort_~i~0#1, 4);call sort_#t~mem5#1 := read~int(sort_~x#1.base, sort_~x#1.offset + 4 * (1 + sort_~i~0#1), 4); 166#L517 assume sort_#t~mem4#1 > sort_#t~mem5#1;havoc sort_#t~mem4#1;havoc sort_#t~mem5#1;call sort_#t~mem6#1 := read~int(sort_~x#1.base, sort_~x#1.offset + 4 * sort_~i~0#1, 4);sort_~temp~0#1 := sort_#t~mem6#1;havoc sort_#t~mem6#1;call sort_#t~mem7#1 := read~int(sort_~x#1.base, sort_~x#1.offset + 4 * (1 + sort_~i~0#1), 4);call write~int(sort_#t~mem7#1, sort_~x#1.base, sort_~x#1.offset + 4 * sort_~i~0#1, 4);havoc sort_#t~mem7#1;call write~int(sort_~temp~0#1, sort_~x#1.base, sort_~x#1.offset + 4 * (1 + sort_~i~0#1), 4); 168#L516-2 sort_#t~post3#1 := sort_~i~0#1;sort_~i~0#1 := 1 + sort_#t~post3#1;havoc sort_#t~post3#1; 169#L516-3 assume !(sort_~i~0#1 < sort_~n#1 - sort_~pass~0#1); 167#L515-2 sort_#t~post2#1 := sort_~pass~0#1;sort_~pass~0#1 := 1 + sort_#t~post2#1;havoc sort_#t~post2#1; 161#L515-3 [2021-12-07 00:24:17,236 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-07 00:24:17,236 INFO L85 PathProgramCache]: Analyzing trace with hash 889568397, now seen corresponding path program 2 times [2021-12-07 00:24:17,236 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-07 00:24:17,237 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [764301041] [2021-12-07 00:24:17,237 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-07 00:24:17,237 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-07 00:24:17,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:24:17,268 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 00:24:17,268 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-07 00:24:17,268 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [764301041] [2021-12-07 00:24:17,268 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [764301041] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-07 00:24:17,269 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-07 00:24:17,269 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-12-07 00:24:17,269 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [450432234] [2021-12-07 00:24:17,269 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-07 00:24:17,269 INFO L796 eck$LassoCheckResult]: stem already infeasible [2021-12-07 00:24:17,270 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-07 00:24:17,270 INFO L85 PathProgramCache]: Analyzing trace with hash 1812321306, now seen corresponding path program 1 times [2021-12-07 00:24:17,270 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-07 00:24:17,270 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [857156913] [2021-12-07 00:24:17,270 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-07 00:24:17,270 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-07 00:24:17,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-07 00:24:17,281 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-07 00:24:17,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-07 00:24:17,291 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-07 00:24:17,320 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4fd24422-a763-4b95-b367-c2bd5e1ca139/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Ended with exit code 0 [2021-12-07 00:24:17,405 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-07 00:24:17,405 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-12-07 00:24:17,405 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-12-07 00:24:17,406 INFO L87 Difference]: Start difference. First operand 14 states and 19 transitions. cyclomatic complexity: 7 Second operand has 4 states, 4 states have (on average 1.5) internal successors, (6), 4 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-07 00:24:17,421 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-07 00:24:17,421 INFO L93 Difference]: Finished difference Result 15 states and 19 transitions. [2021-12-07 00:24:17,421 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-12-07 00:24:17,422 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 15 states and 19 transitions. [2021-12-07 00:24:17,423 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 6 [2021-12-07 00:24:17,424 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 15 states to 15 states and 19 transitions. [2021-12-07 00:24:17,424 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 12 [2021-12-07 00:24:17,424 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 12 [2021-12-07 00:24:17,424 INFO L73 IsDeterministic]: Start isDeterministic. Operand 15 states and 19 transitions. [2021-12-07 00:24:17,425 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-12-07 00:24:17,425 INFO L681 BuchiCegarLoop]: Abstraction has 15 states and 19 transitions. [2021-12-07 00:24:17,425 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15 states and 19 transitions. [2021-12-07 00:24:17,426 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15 to 14. [2021-12-07 00:24:17,426 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14 states, 14 states have (on average 1.2857142857142858) internal successors, (18), 13 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-07 00:24:17,427 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 18 transitions. [2021-12-07 00:24:17,427 INFO L704 BuchiCegarLoop]: Abstraction has 14 states and 18 transitions. [2021-12-07 00:24:17,427 INFO L587 BuchiCegarLoop]: Abstraction has 14 states and 18 transitions. [2021-12-07 00:24:17,427 INFO L425 BuchiCegarLoop]: ======== Iteration 4============ [2021-12-07 00:24:17,427 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 14 states and 18 transitions. [2021-12-07 00:24:17,428 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 6 [2021-12-07 00:24:17,428 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-12-07 00:24:17,428 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-12-07 00:24:17,429 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1] [2021-12-07 00:24:17,429 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1] [2021-12-07 00:24:17,429 INFO L791 eck$LassoCheckResult]: Stem: 192#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier; 193#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet8#1, main_#t~malloc9#1.base, main_#t~malloc9#1.offset, main_#t~nondet11#1, main_#t~post10#1, main_~i~1#1, main_~array_size~0#1, main_~numbers~0#1.base, main_~numbers~0#1.offset;main_~array_size~0#1 := main_#t~nondet8#1;havoc main_#t~nondet8#1; 194#L523 assume !(main_~array_size~0#1 < 1 || main_~array_size~0#1 % 4294967296 >= 536870911); 195#L523-2 call main_#t~malloc9#1.base, main_#t~malloc9#1.offset := #Ultimate.allocOnStack(4 * main_~array_size~0#1);main_~numbers~0#1.base, main_~numbers~0#1.offset := main_#t~malloc9#1.base, main_#t~malloc9#1.offset;main_~i~1#1 := 0; 198#L528-3 assume !!(main_~i~1#1 < main_~array_size~0#1);call write~int(main_#t~nondet11#1, main_~numbers~0#1.base, main_~numbers~0#1.offset + 4 * main_~i~1#1, 4);havoc main_#t~nondet11#1; 199#L528-2 main_#t~post10#1 := main_~i~1#1;main_~i~1#1 := 1 + main_#t~post10#1;havoc main_#t~post10#1; 200#L528-3 assume !(main_~i~1#1 < main_~array_size~0#1); 196#L528-4 assume { :begin_inline_sort } true;sort_#in~x#1.base, sort_#in~x#1.offset, sort_#in~n#1 := main_~numbers~0#1.base, main_~numbers~0#1.offset, main_~array_size~0#1;havoc sort_#t~mem4#1, sort_#t~mem5#1, sort_#t~mem6#1, sort_#t~mem7#1, sort_~temp~0#1, sort_#t~post3#1, sort_#t~post2#1, sort_~x#1.base, sort_~x#1.offset, sort_~n#1, sort_~pass~0#1, sort_~i~0#1;sort_~x#1.base, sort_~x#1.offset := sort_#in~x#1.base, sort_#in~x#1.offset;sort_~n#1 := sort_#in~n#1;havoc sort_~pass~0#1;havoc sort_~i~0#1;sort_~pass~0#1 := 1; 197#L515-3 [2021-12-07 00:24:17,429 INFO L793 eck$LassoCheckResult]: Loop: 197#L515-3 assume !!(sort_~pass~0#1 < sort_~n#1);sort_~i~0#1 := 0; 201#L516-3 assume !!(sort_~i~0#1 < sort_~n#1 - sort_~pass~0#1);call sort_#t~mem4#1 := read~int(sort_~x#1.base, sort_~x#1.offset + 4 * sort_~i~0#1, 4);call sort_#t~mem5#1 := read~int(sort_~x#1.base, sort_~x#1.offset + 4 * (1 + sort_~i~0#1), 4); 202#L517 assume sort_#t~mem4#1 > sort_#t~mem5#1;havoc sort_#t~mem4#1;havoc sort_#t~mem5#1;call sort_#t~mem6#1 := read~int(sort_~x#1.base, sort_~x#1.offset + 4 * sort_~i~0#1, 4);sort_~temp~0#1 := sort_#t~mem6#1;havoc sort_#t~mem6#1;call sort_#t~mem7#1 := read~int(sort_~x#1.base, sort_~x#1.offset + 4 * (1 + sort_~i~0#1), 4);call write~int(sort_#t~mem7#1, sort_~x#1.base, sort_~x#1.offset + 4 * sort_~i~0#1, 4);havoc sort_#t~mem7#1;call write~int(sort_~temp~0#1, sort_~x#1.base, sort_~x#1.offset + 4 * (1 + sort_~i~0#1), 4); 204#L516-2 sort_#t~post3#1 := sort_~i~0#1;sort_~i~0#1 := 1 + sort_#t~post3#1;havoc sort_#t~post3#1; 205#L516-3 assume !(sort_~i~0#1 < sort_~n#1 - sort_~pass~0#1); 203#L515-2 sort_#t~post2#1 := sort_~pass~0#1;sort_~pass~0#1 := 1 + sort_#t~post2#1;havoc sort_#t~post2#1; 197#L515-3 [2021-12-07 00:24:17,429 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-07 00:24:17,430 INFO L85 PathProgramCache]: Analyzing trace with hash 176793839, now seen corresponding path program 1 times [2021-12-07 00:24:17,430 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-07 00:24:17,430 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1159305294] [2021-12-07 00:24:17,430 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-07 00:24:17,430 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-07 00:24:17,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-07 00:24:17,445 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-07 00:24:17,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-07 00:24:17,459 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-07 00:24:17,460 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-07 00:24:17,460 INFO L85 PathProgramCache]: Analyzing trace with hash 1812321306, now seen corresponding path program 2 times [2021-12-07 00:24:17,460 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-07 00:24:17,460 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1155460350] [2021-12-07 00:24:17,461 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-07 00:24:17,461 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-07 00:24:17,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-07 00:24:17,470 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-07 00:24:17,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-07 00:24:17,479 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-07 00:24:17,479 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-07 00:24:17,479 INFO L85 PathProgramCache]: Analyzing trace with hash -256077176, now seen corresponding path program 1 times [2021-12-07 00:24:17,479 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-07 00:24:17,480 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [230874727] [2021-12-07 00:24:17,480 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-07 00:24:17,480 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-07 00:24:17,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:24:17,583 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-07 00:24:17,583 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-07 00:24:17,583 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [230874727] [2021-12-07 00:24:17,584 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [230874727] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-07 00:24:17,584 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2133544134] [2021-12-07 00:24:17,584 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-07 00:24:17,584 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-07 00:24:17,584 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4fd24422-a763-4b95-b367-c2bd5e1ca139/bin/uautomizer-DrprNOufMa/z3 [2021-12-07 00:24:17,585 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4fd24422-a763-4b95-b367-c2bd5e1ca139/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-07 00:24:17,586 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4fd24422-a763-4b95-b367-c2bd5e1ca139/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2021-12-07 00:24:17,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:24:17,623 INFO L263 TraceCheckSpWp]: Trace formula consists of 90 conjuncts, 7 conjunts are in the unsatisfiable core [2021-12-07 00:24:17,624 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-07 00:24:17,680 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-12-07 00:24:17,680 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-12-07 00:24:17,711 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-12-07 00:24:17,712 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2133544134] provided 0 perfect and 2 imperfect interpolant sequences [2021-12-07 00:24:17,712 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-12-07 00:24:17,712 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 6, 6] total 12 [2021-12-07 00:24:17,712 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1469234477] [2021-12-07 00:24:17,712 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-12-07 00:24:17,792 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-07 00:24:17,792 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-12-07 00:24:17,793 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=105, Unknown=0, NotChecked=0, Total=132 [2021-12-07 00:24:17,793 INFO L87 Difference]: Start difference. First operand 14 states and 18 transitions. cyclomatic complexity: 6 Second operand has 12 states, 12 states have (on average 1.9166666666666667) internal successors, (23), 12 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-07 00:24:17,879 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-07 00:24:17,879 INFO L93 Difference]: Finished difference Result 23 states and 28 transitions. [2021-12-07 00:24:17,879 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-12-07 00:24:17,879 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 23 states and 28 transitions. [2021-12-07 00:24:17,880 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 6 [2021-12-07 00:24:17,881 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 23 states to 17 states and 20 transitions. [2021-12-07 00:24:17,881 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 12 [2021-12-07 00:24:17,881 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 12 [2021-12-07 00:24:17,881 INFO L73 IsDeterministic]: Start isDeterministic. Operand 17 states and 20 transitions. [2021-12-07 00:24:17,881 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-12-07 00:24:17,881 INFO L681 BuchiCegarLoop]: Abstraction has 17 states and 20 transitions. [2021-12-07 00:24:17,881 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17 states and 20 transitions. [2021-12-07 00:24:17,882 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17 to 16. [2021-12-07 00:24:17,882 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16 states, 16 states have (on average 1.1875) internal successors, (19), 15 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-07 00:24:17,882 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 19 transitions. [2021-12-07 00:24:17,883 INFO L704 BuchiCegarLoop]: Abstraction has 16 states and 19 transitions. [2021-12-07 00:24:17,883 INFO L587 BuchiCegarLoop]: Abstraction has 16 states and 19 transitions. [2021-12-07 00:24:17,883 INFO L425 BuchiCegarLoop]: ======== Iteration 5============ [2021-12-07 00:24:17,883 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 16 states and 19 transitions. [2021-12-07 00:24:17,883 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 6 [2021-12-07 00:24:17,883 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-12-07 00:24:17,883 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-12-07 00:24:17,884 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [2, 2, 1, 1, 1, 1, 1, 1] [2021-12-07 00:24:17,884 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1] [2021-12-07 00:24:17,884 INFO L791 eck$LassoCheckResult]: Stem: 332#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier; 333#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet8#1, main_#t~malloc9#1.base, main_#t~malloc9#1.offset, main_#t~nondet11#1, main_#t~post10#1, main_~i~1#1, main_~array_size~0#1, main_~numbers~0#1.base, main_~numbers~0#1.offset;main_~array_size~0#1 := main_#t~nondet8#1;havoc main_#t~nondet8#1; 336#L523 assume !(main_~array_size~0#1 < 1 || main_~array_size~0#1 % 4294967296 >= 536870911); 337#L523-2 call main_#t~malloc9#1.base, main_#t~malloc9#1.offset := #Ultimate.allocOnStack(4 * main_~array_size~0#1);main_~numbers~0#1.base, main_~numbers~0#1.offset := main_#t~malloc9#1.base, main_#t~malloc9#1.offset;main_~i~1#1 := 0; 338#L528-3 assume !!(main_~i~1#1 < main_~array_size~0#1);call write~int(main_#t~nondet11#1, main_~numbers~0#1.base, main_~numbers~0#1.offset + 4 * main_~i~1#1, 4);havoc main_#t~nondet11#1; 339#L528-2 main_#t~post10#1 := main_~i~1#1;main_~i~1#1 := 1 + main_#t~post10#1;havoc main_#t~post10#1; 340#L528-3 assume !!(main_~i~1#1 < main_~array_size~0#1);call write~int(main_#t~nondet11#1, main_~numbers~0#1.base, main_~numbers~0#1.offset + 4 * main_~i~1#1, 4);havoc main_#t~nondet11#1; 341#L528-2 main_#t~post10#1 := main_~i~1#1;main_~i~1#1 := 1 + main_#t~post10#1;havoc main_#t~post10#1; 347#L528-3 assume !(main_~i~1#1 < main_~array_size~0#1); 334#L528-4 assume { :begin_inline_sort } true;sort_#in~x#1.base, sort_#in~x#1.offset, sort_#in~n#1 := main_~numbers~0#1.base, main_~numbers~0#1.offset, main_~array_size~0#1;havoc sort_#t~mem4#1, sort_#t~mem5#1, sort_#t~mem6#1, sort_#t~mem7#1, sort_~temp~0#1, sort_#t~post3#1, sort_#t~post2#1, sort_~x#1.base, sort_~x#1.offset, sort_~n#1, sort_~pass~0#1, sort_~i~0#1;sort_~x#1.base, sort_~x#1.offset := sort_#in~x#1.base, sort_#in~x#1.offset;sort_~n#1 := sort_#in~n#1;havoc sort_~pass~0#1;havoc sort_~i~0#1;sort_~pass~0#1 := 1; 335#L515-3 [2021-12-07 00:24:17,884 INFO L793 eck$LassoCheckResult]: Loop: 335#L515-3 assume !!(sort_~pass~0#1 < sort_~n#1);sort_~i~0#1 := 0; 342#L516-3 assume !!(sort_~i~0#1 < sort_~n#1 - sort_~pass~0#1);call sort_#t~mem4#1 := read~int(sort_~x#1.base, sort_~x#1.offset + 4 * sort_~i~0#1, 4);call sort_#t~mem5#1 := read~int(sort_~x#1.base, sort_~x#1.offset + 4 * (1 + sort_~i~0#1), 4); 343#L517 assume sort_#t~mem4#1 > sort_#t~mem5#1;havoc sort_#t~mem4#1;havoc sort_#t~mem5#1;call sort_#t~mem6#1 := read~int(sort_~x#1.base, sort_~x#1.offset + 4 * sort_~i~0#1, 4);sort_~temp~0#1 := sort_#t~mem6#1;havoc sort_#t~mem6#1;call sort_#t~mem7#1 := read~int(sort_~x#1.base, sort_~x#1.offset + 4 * (1 + sort_~i~0#1), 4);call write~int(sort_#t~mem7#1, sort_~x#1.base, sort_~x#1.offset + 4 * sort_~i~0#1, 4);havoc sort_#t~mem7#1;call write~int(sort_~temp~0#1, sort_~x#1.base, sort_~x#1.offset + 4 * (1 + sort_~i~0#1), 4); 345#L516-2 sort_#t~post3#1 := sort_~i~0#1;sort_~i~0#1 := 1 + sort_#t~post3#1;havoc sort_#t~post3#1; 346#L516-3 assume !(sort_~i~0#1 < sort_~n#1 - sort_~pass~0#1); 344#L515-2 sort_#t~post2#1 := sort_~pass~0#1;sort_~pass~0#1 := 1 + sort_#t~post2#1;havoc sort_#t~post2#1; 335#L515-3 [2021-12-07 00:24:17,884 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-07 00:24:17,884 INFO L85 PathProgramCache]: Analyzing trace with hash -1899756335, now seen corresponding path program 2 times [2021-12-07 00:24:17,885 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-07 00:24:17,885 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [454431404] [2021-12-07 00:24:17,885 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-07 00:24:17,885 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-07 00:24:17,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-07 00:24:17,894 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-07 00:24:17,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-07 00:24:17,903 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-07 00:24:17,903 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-07 00:24:17,903 INFO L85 PathProgramCache]: Analyzing trace with hash 1812321306, now seen corresponding path program 3 times [2021-12-07 00:24:17,903 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-07 00:24:17,903 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1257573733] [2021-12-07 00:24:17,903 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-07 00:24:17,904 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-07 00:24:17,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-07 00:24:17,909 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-07 00:24:17,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-07 00:24:17,913 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-07 00:24:17,914 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-07 00:24:17,914 INFO L85 PathProgramCache]: Analyzing trace with hash 1808202986, now seen corresponding path program 2 times [2021-12-07 00:24:17,914 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-07 00:24:17,914 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1142809394] [2021-12-07 00:24:17,914 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-07 00:24:17,915 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-07 00:24:17,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-07 00:24:17,929 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-07 00:24:17,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-07 00:24:17,943 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-07 00:24:18,228 INFO L210 LassoAnalysis]: Preferences: [2021-12-07 00:24:18,228 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-12-07 00:24:18,228 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-12-07 00:24:18,228 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-12-07 00:24:18,228 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2021-12-07 00:24:18,228 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-07 00:24:18,228 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-12-07 00:24:18,228 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-12-07 00:24:18,228 INFO L133 ssoRankerPreferences]: Filename of dumped script: java_BubbleSort-alloca-1.i_Iteration5_Lasso [2021-12-07 00:24:18,228 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-12-07 00:24:18,229 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-12-07 00:24:18,232 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 00:24:18,340 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 00:24:18,341 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 00:24:18,342 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 00:24:18,343 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 00:24:18,345 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 00:24:18,346 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 00:24:18,347 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 00:24:18,348 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 00:24:18,349 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 00:24:18,350 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 00:24:18,351 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 00:24:18,353 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 00:24:18,354 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 00:24:18,355 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 00:24:18,359 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 00:24:18,503 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-12-07 00:24:18,503 INFO L490 LassoAnalysis]: Using template 'affine'. [2021-12-07 00:24:18,503 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-07 00:24:18,503 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4fd24422-a763-4b95-b367-c2bd5e1ca139/bin/uautomizer-DrprNOufMa/z3 [2021-12-07 00:24:18,504 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4fd24422-a763-4b95-b367-c2bd5e1ca139/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-07 00:24:18,504 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4fd24422-a763-4b95-b367-c2bd5e1ca139/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (14)] Waiting until timeout for monitored process [2021-12-07 00:24:18,505 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-12-07 00:24:18,512 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-07 00:24:18,513 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-07 00:24:18,513 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-07 00:24:18,513 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-07 00:24:18,520 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-12-07 00:24:18,520 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-12-07 00:24:18,534 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2021-12-07 00:24:18,559 INFO L443 ModelExtractionUtils]: Simplification made 12 calls to the SMT solver. [2021-12-07 00:24:18,559 INFO L444 ModelExtractionUtils]: 9 out of 40 variables were initially zero. Simplification set additionally 28 variables to zero. [2021-12-07 00:24:18,560 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-07 00:24:18,560 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4fd24422-a763-4b95-b367-c2bd5e1ca139/bin/uautomizer-DrprNOufMa/z3 [2021-12-07 00:24:18,592 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4fd24422-a763-4b95-b367-c2bd5e1ca139/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-07 00:24:18,595 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4fd24422-a763-4b95-b367-c2bd5e1ca139/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (15)] Waiting until timeout for monitored process [2021-12-07 00:24:18,596 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2021-12-07 00:24:18,620 INFO L438 nArgumentSynthesizer]: Removed 2 redundant supporting invariants from a total of 2. [2021-12-07 00:24:18,620 INFO L513 LassoAnalysis]: Proved termination. [2021-12-07 00:24:18,620 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_sort_~n#1, ULTIMATE.start_sort_~pass~0#1) = 1*ULTIMATE.start_sort_~n#1 - 1*ULTIMATE.start_sort_~pass~0#1 Supporting invariants [] [2021-12-07 00:24:18,644 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4fd24422-a763-4b95-b367-c2bd5e1ca139/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (14)] Ended with exit code 0 [2021-12-07 00:24:18,655 INFO L297 tatePredicateManager]: 6 out of 6 supporting invariants were superfluous and have been removed [2021-12-07 00:24:18,661 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-07 00:24:18,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:24:18,671 INFO L263 TraceCheckSpWp]: Trace formula consists of 67 conjuncts, 2 conjunts are in the unsatisfiable core [2021-12-07 00:24:18,671 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-07 00:24:18,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:24:18,687 INFO L263 TraceCheckSpWp]: Trace formula consists of 36 conjuncts, 4 conjunts are in the unsatisfiable core [2021-12-07 00:24:18,687 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-07 00:24:18,707 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-12-07 00:24:18,708 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates [2021-12-07 00:24:18,708 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 16 states and 19 transitions. cyclomatic complexity: 5 Second operand has 3 states, 3 states have (on average 4.666666666666667) internal successors, (14), 3 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-07 00:24:18,716 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 16 states and 19 transitions. cyclomatic complexity: 5. Second operand has 3 states, 3 states have (on average 4.666666666666667) internal successors, (14), 3 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 22 states and 28 transitions. Complement of second has 4 states. [2021-12-07 00:24:18,717 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 3 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2021-12-07 00:24:18,717 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 4.666666666666667) internal successors, (14), 3 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-07 00:24:18,717 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 15 transitions. [2021-12-07 00:24:18,718 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 15 transitions. Stem has 10 letters. Loop has 6 letters. [2021-12-07 00:24:18,718 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-12-07 00:24:18,718 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 15 transitions. Stem has 16 letters. Loop has 6 letters. [2021-12-07 00:24:18,718 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-12-07 00:24:18,718 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 15 transitions. Stem has 10 letters. Loop has 12 letters. [2021-12-07 00:24:18,718 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-12-07 00:24:18,719 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 22 states and 28 transitions. [2021-12-07 00:24:18,719 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2021-12-07 00:24:18,719 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 22 states to 21 states and 27 transitions. [2021-12-07 00:24:18,720 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 10 [2021-12-07 00:24:18,720 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 11 [2021-12-07 00:24:18,720 INFO L73 IsDeterministic]: Start isDeterministic. Operand 21 states and 27 transitions. [2021-12-07 00:24:18,720 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2021-12-07 00:24:18,720 INFO L681 BuchiCegarLoop]: Abstraction has 21 states and 27 transitions. [2021-12-07 00:24:18,720 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21 states and 27 transitions. [2021-12-07 00:24:18,721 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21 to 20. [2021-12-07 00:24:18,721 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 20 states, 20 states have (on average 1.3) internal successors, (26), 19 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-07 00:24:18,721 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 26 transitions. [2021-12-07 00:24:18,721 INFO L704 BuchiCegarLoop]: Abstraction has 20 states and 26 transitions. [2021-12-07 00:24:18,722 INFO L587 BuchiCegarLoop]: Abstraction has 20 states and 26 transitions. [2021-12-07 00:24:18,722 INFO L425 BuchiCegarLoop]: ======== Iteration 6============ [2021-12-07 00:24:18,722 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 20 states and 26 transitions. [2021-12-07 00:24:18,722 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2021-12-07 00:24:18,722 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-12-07 00:24:18,722 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-12-07 00:24:18,723 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [2, 2, 1, 1, 1, 1, 1, 1, 1] [2021-12-07 00:24:18,723 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2021-12-07 00:24:18,723 INFO L791 eck$LassoCheckResult]: Stem: 462#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier; 463#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet8#1, main_#t~malloc9#1.base, main_#t~malloc9#1.offset, main_#t~nondet11#1, main_#t~post10#1, main_~i~1#1, main_~array_size~0#1, main_~numbers~0#1.base, main_~numbers~0#1.offset;main_~array_size~0#1 := main_#t~nondet8#1;havoc main_#t~nondet8#1; 464#L523 assume !(main_~array_size~0#1 < 1 || main_~array_size~0#1 % 4294967296 >= 536870911); 465#L523-2 call main_#t~malloc9#1.base, main_#t~malloc9#1.offset := #Ultimate.allocOnStack(4 * main_~array_size~0#1);main_~numbers~0#1.base, main_~numbers~0#1.offset := main_#t~malloc9#1.base, main_#t~malloc9#1.offset;main_~i~1#1 := 0; 468#L528-3 assume !!(main_~i~1#1 < main_~array_size~0#1);call write~int(main_#t~nondet11#1, main_~numbers~0#1.base, main_~numbers~0#1.offset + 4 * main_~i~1#1, 4);havoc main_#t~nondet11#1; 469#L528-2 main_#t~post10#1 := main_~i~1#1;main_~i~1#1 := 1 + main_#t~post10#1;havoc main_#t~post10#1; 470#L528-3 assume !!(main_~i~1#1 < main_~array_size~0#1);call write~int(main_#t~nondet11#1, main_~numbers~0#1.base, main_~numbers~0#1.offset + 4 * main_~i~1#1, 4);havoc main_#t~nondet11#1; 471#L528-2 main_#t~post10#1 := main_~i~1#1;main_~i~1#1 := 1 + main_#t~post10#1;havoc main_#t~post10#1; 481#L528-3 assume !(main_~i~1#1 < main_~array_size~0#1); 466#L528-4 assume { :begin_inline_sort } true;sort_#in~x#1.base, sort_#in~x#1.offset, sort_#in~n#1 := main_~numbers~0#1.base, main_~numbers~0#1.offset, main_~array_size~0#1;havoc sort_#t~mem4#1, sort_#t~mem5#1, sort_#t~mem6#1, sort_#t~mem7#1, sort_~temp~0#1, sort_#t~post3#1, sort_#t~post2#1, sort_~x#1.base, sort_~x#1.offset, sort_~n#1, sort_~pass~0#1, sort_~i~0#1;sort_~x#1.base, sort_~x#1.offset := sort_#in~x#1.base, sort_#in~x#1.offset;sort_~n#1 := sort_#in~n#1;havoc sort_~pass~0#1;havoc sort_~i~0#1;sort_~pass~0#1 := 1; 467#L515-3 assume !!(sort_~pass~0#1 < sort_~n#1);sort_~i~0#1 := 0; 472#L516-3 [2021-12-07 00:24:18,723 INFO L793 eck$LassoCheckResult]: Loop: 472#L516-3 assume !!(sort_~i~0#1 < sort_~n#1 - sort_~pass~0#1);call sort_#t~mem4#1 := read~int(sort_~x#1.base, sort_~x#1.offset + 4 * sort_~i~0#1, 4);call sort_#t~mem5#1 := read~int(sort_~x#1.base, sort_~x#1.offset + 4 * (1 + sort_~i~0#1), 4); 473#L517 assume sort_#t~mem4#1 > sort_#t~mem5#1;havoc sort_#t~mem4#1;havoc sort_#t~mem5#1;call sort_#t~mem6#1 := read~int(sort_~x#1.base, sort_~x#1.offset + 4 * sort_~i~0#1, 4);sort_~temp~0#1 := sort_#t~mem6#1;havoc sort_#t~mem6#1;call sort_#t~mem7#1 := read~int(sort_~x#1.base, sort_~x#1.offset + 4 * (1 + sort_~i~0#1), 4);call write~int(sort_#t~mem7#1, sort_~x#1.base, sort_~x#1.offset + 4 * sort_~i~0#1, 4);havoc sort_#t~mem7#1;call write~int(sort_~temp~0#1, sort_~x#1.base, sort_~x#1.offset + 4 * (1 + sort_~i~0#1), 4); 478#L516-2 sort_#t~post3#1 := sort_~i~0#1;sort_~i~0#1 := 1 + sort_#t~post3#1;havoc sort_#t~post3#1; 472#L516-3 [2021-12-07 00:24:18,723 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-07 00:24:18,723 INFO L85 PathProgramCache]: Analyzing trace with hash 1237095790, now seen corresponding path program 1 times [2021-12-07 00:24:18,723 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-07 00:24:18,723 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [139191277] [2021-12-07 00:24:18,723 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-07 00:24:18,724 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-07 00:24:18,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-07 00:24:18,732 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-07 00:24:18,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-07 00:24:18,740 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-07 00:24:18,741 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-07 00:24:18,741 INFO L85 PathProgramCache]: Analyzing trace with hash 68618, now seen corresponding path program 1 times [2021-12-07 00:24:18,741 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-07 00:24:18,741 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [225469541] [2021-12-07 00:24:18,741 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-07 00:24:18,741 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-07 00:24:18,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-07 00:24:18,745 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-07 00:24:18,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-07 00:24:18,749 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-07 00:24:18,749 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-07 00:24:18,749 INFO L85 PathProgramCache]: Analyzing trace with hash -793648259, now seen corresponding path program 1 times [2021-12-07 00:24:18,749 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-07 00:24:18,749 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1037700460] [2021-12-07 00:24:18,749 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-07 00:24:18,750 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-07 00:24:18,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-07 00:24:18,760 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-07 00:24:18,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-07 00:24:18,770 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-07 00:24:18,947 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4fd24422-a763-4b95-b367-c2bd5e1ca139/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (15)] Ended with exit code 0 [2021-12-07 00:24:19,017 INFO L210 LassoAnalysis]: Preferences: [2021-12-07 00:24:19,017 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-12-07 00:24:19,018 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-12-07 00:24:19,018 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-12-07 00:24:19,018 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2021-12-07 00:24:19,018 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-07 00:24:19,018 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-12-07 00:24:19,018 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-12-07 00:24:19,018 INFO L133 ssoRankerPreferences]: Filename of dumped script: java_BubbleSort-alloca-1.i_Iteration6_Lasso [2021-12-07 00:24:19,018 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-12-07 00:24:19,018 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-12-07 00:24:19,020 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-07 00:24:19,022 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-07 00:24:19,023 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-07 00:24:19,024 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 00:24:19,025 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-07 00:24:19,026 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-07 00:24:19,027 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-07 00:24:19,028 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 00:24:19,030 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 00:24:19,171 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 00:24:19,172 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 00:24:19,173 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 00:24:19,175 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 00:24:19,176 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 00:24:19,176 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 00:24:19,177 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 00:24:19,179 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 00:24:19,368 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-12-07 00:24:19,369 INFO L490 LassoAnalysis]: Using template 'affine'. [2021-12-07 00:24:19,369 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-07 00:24:19,369 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4fd24422-a763-4b95-b367-c2bd5e1ca139/bin/uautomizer-DrprNOufMa/z3 [2021-12-07 00:24:19,371 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4fd24422-a763-4b95-b367-c2bd5e1ca139/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-07 00:24:19,372 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4fd24422-a763-4b95-b367-c2bd5e1ca139/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (16)] Waiting until timeout for monitored process [2021-12-07 00:24:19,372 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 00:24:19,379 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-07 00:24:19,379 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-07 00:24:19,380 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-07 00:24:19,380 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-07 00:24:19,381 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-12-07 00:24:19,381 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-12-07 00:24:19,387 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-07 00:24:19,405 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4fd24422-a763-4b95-b367-c2bd5e1ca139/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (16)] Ended with exit code 0 [2021-12-07 00:24:19,405 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-07 00:24:19,405 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4fd24422-a763-4b95-b367-c2bd5e1ca139/bin/uautomizer-DrprNOufMa/z3 [2021-12-07 00:24:19,406 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4fd24422-a763-4b95-b367-c2bd5e1ca139/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-07 00:24:19,406 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4fd24422-a763-4b95-b367-c2bd5e1ca139/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (17)] Waiting until timeout for monitored process [2021-12-07 00:24:19,407 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 00:24:19,413 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-07 00:24:19,413 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-12-07 00:24:19,414 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-07 00:24:19,414 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-07 00:24:19,414 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-07 00:24:19,414 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-12-07 00:24:19,414 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-12-07 00:24:19,415 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-07 00:24:19,433 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4fd24422-a763-4b95-b367-c2bd5e1ca139/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (17)] Forceful destruction successful, exit code 0 [2021-12-07 00:24:19,433 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-07 00:24:19,433 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4fd24422-a763-4b95-b367-c2bd5e1ca139/bin/uautomizer-DrprNOufMa/z3 [2021-12-07 00:24:19,434 INFO L229 MonitoredProcess]: Starting monitored process 18 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4fd24422-a763-4b95-b367-c2bd5e1ca139/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-07 00:24:19,434 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4fd24422-a763-4b95-b367-c2bd5e1ca139/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (18)] Waiting until timeout for monitored process [2021-12-07 00:24:19,435 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 00:24:19,441 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-07 00:24:19,442 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-12-07 00:24:19,442 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-07 00:24:19,442 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-07 00:24:19,442 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-07 00:24:19,442 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-12-07 00:24:19,442 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-12-07 00:24:19,444 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-07 00:24:19,462 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4fd24422-a763-4b95-b367-c2bd5e1ca139/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (18)] Ended with exit code 0 [2021-12-07 00:24:19,462 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-07 00:24:19,462 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4fd24422-a763-4b95-b367-c2bd5e1ca139/bin/uautomizer-DrprNOufMa/z3 [2021-12-07 00:24:19,463 INFO L229 MonitoredProcess]: Starting monitored process 19 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4fd24422-a763-4b95-b367-c2bd5e1ca139/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-07 00:24:19,463 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4fd24422-a763-4b95-b367-c2bd5e1ca139/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (19)] Waiting until timeout for monitored process [2021-12-07 00:24:19,464 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 00:24:19,471 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-07 00:24:19,471 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-07 00:24:19,471 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-07 00:24:19,471 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-07 00:24:19,473 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-12-07 00:24:19,473 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-12-07 00:24:19,475 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-07 00:24:19,493 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4fd24422-a763-4b95-b367-c2bd5e1ca139/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (19)] Ended with exit code 0 [2021-12-07 00:24:19,493 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-07 00:24:19,493 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4fd24422-a763-4b95-b367-c2bd5e1ca139/bin/uautomizer-DrprNOufMa/z3 [2021-12-07 00:24:19,494 INFO L229 MonitoredProcess]: Starting monitored process 20 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4fd24422-a763-4b95-b367-c2bd5e1ca139/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-07 00:24:19,495 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4fd24422-a763-4b95-b367-c2bd5e1ca139/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (20)] Waiting until timeout for monitored process [2021-12-07 00:24:19,495 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 00:24:19,502 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-07 00:24:19,502 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-12-07 00:24:19,503 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-07 00:24:19,503 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-07 00:24:19,503 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-07 00:24:19,503 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-12-07 00:24:19,503 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-12-07 00:24:19,504 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-07 00:24:19,522 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4fd24422-a763-4b95-b367-c2bd5e1ca139/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (20)] Forceful destruction successful, exit code 0 [2021-12-07 00:24:19,523 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-07 00:24:19,523 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4fd24422-a763-4b95-b367-c2bd5e1ca139/bin/uautomizer-DrprNOufMa/z3 [2021-12-07 00:24:19,523 INFO L229 MonitoredProcess]: Starting monitored process 21 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4fd24422-a763-4b95-b367-c2bd5e1ca139/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-07 00:24:19,524 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4fd24422-a763-4b95-b367-c2bd5e1ca139/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (21)] Waiting until timeout for monitored process [2021-12-07 00:24:19,524 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 00:24:19,531 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-07 00:24:19,531 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-12-07 00:24:19,531 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-07 00:24:19,532 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-07 00:24:19,532 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-07 00:24:19,532 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-12-07 00:24:19,532 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-12-07 00:24:19,533 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-07 00:24:19,551 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4fd24422-a763-4b95-b367-c2bd5e1ca139/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (21)] Forceful destruction successful, exit code 0 [2021-12-07 00:24:19,552 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-07 00:24:19,552 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4fd24422-a763-4b95-b367-c2bd5e1ca139/bin/uautomizer-DrprNOufMa/z3 [2021-12-07 00:24:19,553 INFO L229 MonitoredProcess]: Starting monitored process 22 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4fd24422-a763-4b95-b367-c2bd5e1ca139/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-07 00:24:19,553 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4fd24422-a763-4b95-b367-c2bd5e1ca139/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (22)] Waiting until timeout for monitored process [2021-12-07 00:24:19,554 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 00:24:19,561 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-07 00:24:19,561 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-07 00:24:19,561 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-07 00:24:19,561 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-07 00:24:19,563 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-12-07 00:24:19,563 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-12-07 00:24:19,566 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-07 00:24:19,584 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4fd24422-a763-4b95-b367-c2bd5e1ca139/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (22)] Forceful destruction successful, exit code 0 [2021-12-07 00:24:19,584 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-07 00:24:19,584 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4fd24422-a763-4b95-b367-c2bd5e1ca139/bin/uautomizer-DrprNOufMa/z3 [2021-12-07 00:24:19,585 INFO L229 MonitoredProcess]: Starting monitored process 23 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4fd24422-a763-4b95-b367-c2bd5e1ca139/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-07 00:24:19,586 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4fd24422-a763-4b95-b367-c2bd5e1ca139/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (23)] Waiting until timeout for monitored process [2021-12-07 00:24:19,586 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 00:24:19,593 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-07 00:24:19,593 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-07 00:24:19,593 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-07 00:24:19,594 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-07 00:24:19,596 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-12-07 00:24:19,596 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-12-07 00:24:19,599 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-07 00:24:19,616 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4fd24422-a763-4b95-b367-c2bd5e1ca139/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (23)] Ended with exit code 0 [2021-12-07 00:24:19,617 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-07 00:24:19,617 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4fd24422-a763-4b95-b367-c2bd5e1ca139/bin/uautomizer-DrprNOufMa/z3 [2021-12-07 00:24:19,617 INFO L229 MonitoredProcess]: Starting monitored process 24 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4fd24422-a763-4b95-b367-c2bd5e1ca139/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-07 00:24:19,618 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4fd24422-a763-4b95-b367-c2bd5e1ca139/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (24)] Waiting until timeout for monitored process [2021-12-07 00:24:19,619 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 00:24:19,626 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-07 00:24:19,626 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-07 00:24:19,626 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-07 00:24:19,626 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-07 00:24:19,628 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-12-07 00:24:19,628 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-12-07 00:24:19,634 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-07 00:24:19,652 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4fd24422-a763-4b95-b367-c2bd5e1ca139/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (24)] Forceful destruction successful, exit code 0 [2021-12-07 00:24:19,652 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-07 00:24:19,653 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4fd24422-a763-4b95-b367-c2bd5e1ca139/bin/uautomizer-DrprNOufMa/z3 [2021-12-07 00:24:19,653 INFO L229 MonitoredProcess]: Starting monitored process 25 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4fd24422-a763-4b95-b367-c2bd5e1ca139/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-07 00:24:19,654 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4fd24422-a763-4b95-b367-c2bd5e1ca139/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (25)] Waiting until timeout for monitored process [2021-12-07 00:24:19,655 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 00:24:19,662 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-07 00:24:19,662 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-07 00:24:19,662 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-07 00:24:19,662 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-07 00:24:19,665 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-12-07 00:24:19,665 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-12-07 00:24:19,670 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-07 00:24:19,688 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4fd24422-a763-4b95-b367-c2bd5e1ca139/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (25)] Ended with exit code 0 [2021-12-07 00:24:19,689 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-07 00:24:19,689 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4fd24422-a763-4b95-b367-c2bd5e1ca139/bin/uautomizer-DrprNOufMa/z3 [2021-12-07 00:24:19,689 INFO L229 MonitoredProcess]: Starting monitored process 26 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4fd24422-a763-4b95-b367-c2bd5e1ca139/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-07 00:24:19,690 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4fd24422-a763-4b95-b367-c2bd5e1ca139/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (26)] Waiting until timeout for monitored process [2021-12-07 00:24:19,691 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 00:24:19,698 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-07 00:24:19,698 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-07 00:24:19,698 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-07 00:24:19,698 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-07 00:24:19,702 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-12-07 00:24:19,702 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-12-07 00:24:19,715 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2021-12-07 00:24:19,742 INFO L443 ModelExtractionUtils]: Simplification made 16 calls to the SMT solver. [2021-12-07 00:24:19,742 INFO L444 ModelExtractionUtils]: 10 out of 40 variables were initially zero. Simplification set additionally 26 variables to zero. [2021-12-07 00:24:19,743 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-07 00:24:19,743 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4fd24422-a763-4b95-b367-c2bd5e1ca139/bin/uautomizer-DrprNOufMa/z3 [2021-12-07 00:24:19,743 INFO L229 MonitoredProcess]: Starting monitored process 27 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4fd24422-a763-4b95-b367-c2bd5e1ca139/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-07 00:24:19,744 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4fd24422-a763-4b95-b367-c2bd5e1ca139/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (27)] Waiting until timeout for monitored process [2021-12-07 00:24:19,744 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2021-12-07 00:24:19,754 INFO L438 nArgumentSynthesizer]: Removed 2 redundant supporting invariants from a total of 2. [2021-12-07 00:24:19,754 INFO L513 LassoAnalysis]: Proved termination. [2021-12-07 00:24:19,754 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_sort_~i~0#1, ULTIMATE.start_sort_~n#1, ULTIMATE.start_sort_~pass~0#1) = -1*ULTIMATE.start_sort_~i~0#1 + 1*ULTIMATE.start_sort_~n#1 - 1*ULTIMATE.start_sort_~pass~0#1 Supporting invariants [] [2021-12-07 00:24:19,772 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4fd24422-a763-4b95-b367-c2bd5e1ca139/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (26)] Ended with exit code 0 [2021-12-07 00:24:19,788 INFO L297 tatePredicateManager]: 7 out of 7 supporting invariants were superfluous and have been removed [2021-12-07 00:24:19,794 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-07 00:24:19,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:24:19,802 INFO L263 TraceCheckSpWp]: Trace formula consists of 70 conjuncts, 2 conjunts are in the unsatisfiable core [2021-12-07 00:24:19,803 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-07 00:24:19,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:24:19,816 INFO L263 TraceCheckSpWp]: Trace formula consists of 30 conjuncts, 4 conjunts are in the unsatisfiable core [2021-12-07 00:24:19,817 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-07 00:24:19,826 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 00:24:19,827 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates [2021-12-07 00:24:19,827 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 20 states and 26 transitions. cyclomatic complexity: 9 Second operand has 3 states, 3 states have (on average 4.0) internal successors, (12), 3 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-07 00:24:19,842 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 20 states and 26 transitions. cyclomatic complexity: 9. Second operand has 3 states, 3 states have (on average 4.0) internal successors, (12), 3 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 36 states and 50 transitions. Complement of second has 7 states. [2021-12-07 00:24:19,843 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2021-12-07 00:24:19,843 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 4.0) internal successors, (12), 3 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-07 00:24:19,843 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 15 transitions. [2021-12-07 00:24:19,843 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 15 transitions. Stem has 11 letters. Loop has 3 letters. [2021-12-07 00:24:19,844 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-12-07 00:24:19,844 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 15 transitions. Stem has 14 letters. Loop has 3 letters. [2021-12-07 00:24:19,844 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-12-07 00:24:19,844 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 15 transitions. Stem has 11 letters. Loop has 6 letters. [2021-12-07 00:24:19,844 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-12-07 00:24:19,844 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 36 states and 50 transitions. [2021-12-07 00:24:19,845 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2021-12-07 00:24:19,845 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 36 states to 26 states and 34 transitions. [2021-12-07 00:24:19,845 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 10 [2021-12-07 00:24:19,846 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 10 [2021-12-07 00:24:19,846 INFO L73 IsDeterministic]: Start isDeterministic. Operand 26 states and 34 transitions. [2021-12-07 00:24:19,846 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2021-12-07 00:24:19,846 INFO L681 BuchiCegarLoop]: Abstraction has 26 states and 34 transitions. [2021-12-07 00:24:19,846 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26 states and 34 transitions. [2021-12-07 00:24:19,847 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26 to 20. [2021-12-07 00:24:19,847 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 20 states, 20 states have (on average 1.25) internal successors, (25), 19 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-07 00:24:19,847 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 25 transitions. [2021-12-07 00:24:19,847 INFO L704 BuchiCegarLoop]: Abstraction has 20 states and 25 transitions. [2021-12-07 00:24:19,847 INFO L587 BuchiCegarLoop]: Abstraction has 20 states and 25 transitions. [2021-12-07 00:24:19,847 INFO L425 BuchiCegarLoop]: ======== Iteration 7============ [2021-12-07 00:24:19,848 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 20 states and 25 transitions. [2021-12-07 00:24:19,848 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2021-12-07 00:24:19,848 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-12-07 00:24:19,848 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-12-07 00:24:19,848 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-07 00:24:19,848 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2021-12-07 00:24:19,849 INFO L791 eck$LassoCheckResult]: Stem: 612#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier; 613#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet8#1, main_#t~malloc9#1.base, main_#t~malloc9#1.offset, main_#t~nondet11#1, main_#t~post10#1, main_~i~1#1, main_~array_size~0#1, main_~numbers~0#1.base, main_~numbers~0#1.offset;main_~array_size~0#1 := main_#t~nondet8#1;havoc main_#t~nondet8#1; 614#L523 assume !(main_~array_size~0#1 < 1 || main_~array_size~0#1 % 4294967296 >= 536870911); 615#L523-2 call main_#t~malloc9#1.base, main_#t~malloc9#1.offset := #Ultimate.allocOnStack(4 * main_~array_size~0#1);main_~numbers~0#1.base, main_~numbers~0#1.offset := main_#t~malloc9#1.base, main_#t~malloc9#1.offset;main_~i~1#1 := 0; 618#L528-3 assume !!(main_~i~1#1 < main_~array_size~0#1);call write~int(main_#t~nondet11#1, main_~numbers~0#1.base, main_~numbers~0#1.offset + 4 * main_~i~1#1, 4);havoc main_#t~nondet11#1; 619#L528-2 main_#t~post10#1 := main_~i~1#1;main_~i~1#1 := 1 + main_#t~post10#1;havoc main_#t~post10#1; 620#L528-3 assume !!(main_~i~1#1 < main_~array_size~0#1);call write~int(main_#t~nondet11#1, main_~numbers~0#1.base, main_~numbers~0#1.offset + 4 * main_~i~1#1, 4);havoc main_#t~nondet11#1; 621#L528-2 main_#t~post10#1 := main_~i~1#1;main_~i~1#1 := 1 + main_#t~post10#1;havoc main_#t~post10#1; 631#L528-3 assume !(main_~i~1#1 < main_~array_size~0#1); 616#L528-4 assume { :begin_inline_sort } true;sort_#in~x#1.base, sort_#in~x#1.offset, sort_#in~n#1 := main_~numbers~0#1.base, main_~numbers~0#1.offset, main_~array_size~0#1;havoc sort_#t~mem4#1, sort_#t~mem5#1, sort_#t~mem6#1, sort_#t~mem7#1, sort_~temp~0#1, sort_#t~post3#1, sort_#t~post2#1, sort_~x#1.base, sort_~x#1.offset, sort_~n#1, sort_~pass~0#1, sort_~i~0#1;sort_~x#1.base, sort_~x#1.offset := sort_#in~x#1.base, sort_#in~x#1.offset;sort_~n#1 := sort_#in~n#1;havoc sort_~pass~0#1;havoc sort_~i~0#1;sort_~pass~0#1 := 1; 617#L515-3 assume !!(sort_~pass~0#1 < sort_~n#1);sort_~i~0#1 := 0; 624#L516-3 assume !!(sort_~i~0#1 < sort_~n#1 - sort_~pass~0#1);call sort_#t~mem4#1 := read~int(sort_~x#1.base, sort_~x#1.offset + 4 * sort_~i~0#1, 4);call sort_#t~mem5#1 := read~int(sort_~x#1.base, sort_~x#1.offset + 4 * (1 + sort_~i~0#1), 4); 625#L517 assume !(sort_#t~mem4#1 > sort_#t~mem5#1);havoc sort_#t~mem4#1;havoc sort_#t~mem5#1; 629#L516-2 sort_#t~post3#1 := sort_~i~0#1;sort_~i~0#1 := 1 + sort_#t~post3#1;havoc sort_#t~post3#1; 630#L516-3 assume !(sort_~i~0#1 < sort_~n#1 - sort_~pass~0#1); 626#L515-2 sort_#t~post2#1 := sort_~pass~0#1;sort_~pass~0#1 := 1 + sort_#t~post2#1;havoc sort_#t~post2#1; 627#L515-3 assume !!(sort_~pass~0#1 < sort_~n#1);sort_~i~0#1 := 0; 622#L516-3 [2021-12-07 00:24:19,849 INFO L793 eck$LassoCheckResult]: Loop: 622#L516-3 assume !!(sort_~i~0#1 < sort_~n#1 - sort_~pass~0#1);call sort_#t~mem4#1 := read~int(sort_~x#1.base, sort_~x#1.offset + 4 * sort_~i~0#1, 4);call sort_#t~mem5#1 := read~int(sort_~x#1.base, sort_~x#1.offset + 4 * (1 + sort_~i~0#1), 4); 623#L517 assume sort_#t~mem4#1 > sort_#t~mem5#1;havoc sort_#t~mem4#1;havoc sort_#t~mem5#1;call sort_#t~mem6#1 := read~int(sort_~x#1.base, sort_~x#1.offset + 4 * sort_~i~0#1, 4);sort_~temp~0#1 := sort_#t~mem6#1;havoc sort_#t~mem6#1;call sort_#t~mem7#1 := read~int(sort_~x#1.base, sort_~x#1.offset + 4 * (1 + sort_~i~0#1), 4);call write~int(sort_#t~mem7#1, sort_~x#1.base, sort_~x#1.offset + 4 * sort_~i~0#1, 4);havoc sort_#t~mem7#1;call write~int(sort_~temp~0#1, sort_~x#1.base, sort_~x#1.offset + 4 * (1 + sort_~i~0#1), 4); 628#L516-2 sort_#t~post3#1 := sort_~i~0#1;sort_~i~0#1 := 1 + sort_#t~post3#1;havoc sort_#t~post3#1; 622#L516-3 [2021-12-07 00:24:19,849 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-07 00:24:19,849 INFO L85 PathProgramCache]: Analyzing trace with hash 221564791, now seen corresponding path program 1 times [2021-12-07 00:24:19,849 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-07 00:24:19,849 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [937378898] [2021-12-07 00:24:19,849 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-07 00:24:19,849 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-07 00:24:19,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:24:19,894 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 1 proven. 4 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-12-07 00:24:19,894 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-07 00:24:19,895 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [937378898] [2021-12-07 00:24:19,895 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [937378898] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-07 00:24:19,895 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1629780090] [2021-12-07 00:24:19,895 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-07 00:24:19,895 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-07 00:24:19,895 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4fd24422-a763-4b95-b367-c2bd5e1ca139/bin/uautomizer-DrprNOufMa/z3 [2021-12-07 00:24:19,896 INFO L229 MonitoredProcess]: Starting monitored process 28 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4fd24422-a763-4b95-b367-c2bd5e1ca139/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-07 00:24:19,896 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4fd24422-a763-4b95-b367-c2bd5e1ca139/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (28)] Waiting until timeout for monitored process [2021-12-07 00:24:19,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:24:19,926 INFO L263 TraceCheckSpWp]: Trace formula consists of 90 conjuncts, 9 conjunts are in the unsatisfiable core [2021-12-07 00:24:19,927 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-07 00:24:19,974 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 1 proven. 4 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-12-07 00:24:19,974 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-12-07 00:24:19,999 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 1 proven. 4 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-12-07 00:24:19,999 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1629780090] provided 0 perfect and 2 imperfect interpolant sequences [2021-12-07 00:24:19,999 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-12-07 00:24:19,999 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 7, 7] total 11 [2021-12-07 00:24:19,999 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [645091842] [2021-12-07 00:24:19,999 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-12-07 00:24:19,999 INFO L796 eck$LassoCheckResult]: stem already infeasible [2021-12-07 00:24:20,000 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-07 00:24:20,000 INFO L85 PathProgramCache]: Analyzing trace with hash 68618, now seen corresponding path program 2 times [2021-12-07 00:24:20,000 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-07 00:24:20,000 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1185138126] [2021-12-07 00:24:20,000 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-07 00:24:20,000 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-07 00:24:20,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-07 00:24:20,004 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-07 00:24:20,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-07 00:24:20,007 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-07 00:24:20,064 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-07 00:24:20,065 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-12-07 00:24:20,065 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=96, Unknown=0, NotChecked=0, Total=132 [2021-12-07 00:24:20,065 INFO L87 Difference]: Start difference. First operand 20 states and 25 transitions. cyclomatic complexity: 8 Second operand has 12 states, 11 states have (on average 2.5454545454545454) internal successors, (28), 12 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-07 00:24:20,113 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-07 00:24:20,114 INFO L93 Difference]: Finished difference Result 31 states and 38 transitions. [2021-12-07 00:24:20,114 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-12-07 00:24:20,115 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 31 states and 38 transitions. [2021-12-07 00:24:20,115 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2021-12-07 00:24:20,116 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 31 states to 23 states and 28 transitions. [2021-12-07 00:24:20,116 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 10 [2021-12-07 00:24:20,116 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 10 [2021-12-07 00:24:20,116 INFO L73 IsDeterministic]: Start isDeterministic. Operand 23 states and 28 transitions. [2021-12-07 00:24:20,116 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2021-12-07 00:24:20,116 INFO L681 BuchiCegarLoop]: Abstraction has 23 states and 28 transitions. [2021-12-07 00:24:20,116 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23 states and 28 transitions. [2021-12-07 00:24:20,117 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23 to 22. [2021-12-07 00:24:20,118 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 22 states, 22 states have (on average 1.2272727272727273) internal successors, (27), 21 states have internal predecessors, (27), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-07 00:24:20,118 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 22 states and 27 transitions. [2021-12-07 00:24:20,118 INFO L704 BuchiCegarLoop]: Abstraction has 22 states and 27 transitions. [2021-12-07 00:24:20,118 INFO L587 BuchiCegarLoop]: Abstraction has 22 states and 27 transitions. [2021-12-07 00:24:20,118 INFO L425 BuchiCegarLoop]: ======== Iteration 8============ [2021-12-07 00:24:20,118 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 22 states and 27 transitions. [2021-12-07 00:24:20,119 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2021-12-07 00:24:20,119 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-12-07 00:24:20,119 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-12-07 00:24:20,119 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-07 00:24:20,119 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2021-12-07 00:24:20,120 INFO L791 eck$LassoCheckResult]: Stem: 780#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier; 781#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet8#1, main_#t~malloc9#1.base, main_#t~malloc9#1.offset, main_#t~nondet11#1, main_#t~post10#1, main_~i~1#1, main_~array_size~0#1, main_~numbers~0#1.base, main_~numbers~0#1.offset;main_~array_size~0#1 := main_#t~nondet8#1;havoc main_#t~nondet8#1; 782#L523 assume !(main_~array_size~0#1 < 1 || main_~array_size~0#1 % 4294967296 >= 536870911); 783#L523-2 call main_#t~malloc9#1.base, main_#t~malloc9#1.offset := #Ultimate.allocOnStack(4 * main_~array_size~0#1);main_~numbers~0#1.base, main_~numbers~0#1.offset := main_#t~malloc9#1.base, main_#t~malloc9#1.offset;main_~i~1#1 := 0; 786#L528-3 assume !!(main_~i~1#1 < main_~array_size~0#1);call write~int(main_#t~nondet11#1, main_~numbers~0#1.base, main_~numbers~0#1.offset + 4 * main_~i~1#1, 4);havoc main_#t~nondet11#1; 787#L528-2 main_#t~post10#1 := main_~i~1#1;main_~i~1#1 := 1 + main_#t~post10#1;havoc main_#t~post10#1; 788#L528-3 assume !!(main_~i~1#1 < main_~array_size~0#1);call write~int(main_#t~nondet11#1, main_~numbers~0#1.base, main_~numbers~0#1.offset + 4 * main_~i~1#1, 4);havoc main_#t~nondet11#1; 789#L528-2 main_#t~post10#1 := main_~i~1#1;main_~i~1#1 := 1 + main_#t~post10#1;havoc main_#t~post10#1; 799#L528-3 assume !!(main_~i~1#1 < main_~array_size~0#1);call write~int(main_#t~nondet11#1, main_~numbers~0#1.base, main_~numbers~0#1.offset + 4 * main_~i~1#1, 4);havoc main_#t~nondet11#1; 801#L528-2 main_#t~post10#1 := main_~i~1#1;main_~i~1#1 := 1 + main_#t~post10#1;havoc main_#t~post10#1; 800#L528-3 assume !(main_~i~1#1 < main_~array_size~0#1); 784#L528-4 assume { :begin_inline_sort } true;sort_#in~x#1.base, sort_#in~x#1.offset, sort_#in~n#1 := main_~numbers~0#1.base, main_~numbers~0#1.offset, main_~array_size~0#1;havoc sort_#t~mem4#1, sort_#t~mem5#1, sort_#t~mem6#1, sort_#t~mem7#1, sort_~temp~0#1, sort_#t~post3#1, sort_#t~post2#1, sort_~x#1.base, sort_~x#1.offset, sort_~n#1, sort_~pass~0#1, sort_~i~0#1;sort_~x#1.base, sort_~x#1.offset := sort_#in~x#1.base, sort_#in~x#1.offset;sort_~n#1 := sort_#in~n#1;havoc sort_~pass~0#1;havoc sort_~i~0#1;sort_~pass~0#1 := 1; 785#L515-3 assume !!(sort_~pass~0#1 < sort_~n#1);sort_~i~0#1 := 0; 792#L516-3 assume !!(sort_~i~0#1 < sort_~n#1 - sort_~pass~0#1);call sort_#t~mem4#1 := read~int(sort_~x#1.base, sort_~x#1.offset + 4 * sort_~i~0#1, 4);call sort_#t~mem5#1 := read~int(sort_~x#1.base, sort_~x#1.offset + 4 * (1 + sort_~i~0#1), 4); 793#L517 assume !(sort_#t~mem4#1 > sort_#t~mem5#1);havoc sort_#t~mem4#1;havoc sort_#t~mem5#1; 797#L516-2 sort_#t~post3#1 := sort_~i~0#1;sort_~i~0#1 := 1 + sort_#t~post3#1;havoc sort_#t~post3#1; 798#L516-3 assume !(sort_~i~0#1 < sort_~n#1 - sort_~pass~0#1); 794#L515-2 sort_#t~post2#1 := sort_~pass~0#1;sort_~pass~0#1 := 1 + sort_#t~post2#1;havoc sort_#t~post2#1; 795#L515-3 assume !!(sort_~pass~0#1 < sort_~n#1);sort_~i~0#1 := 0; 790#L516-3 [2021-12-07 00:24:20,120 INFO L793 eck$LassoCheckResult]: Loop: 790#L516-3 assume !!(sort_~i~0#1 < sort_~n#1 - sort_~pass~0#1);call sort_#t~mem4#1 := read~int(sort_~x#1.base, sort_~x#1.offset + 4 * sort_~i~0#1, 4);call sort_#t~mem5#1 := read~int(sort_~x#1.base, sort_~x#1.offset + 4 * (1 + sort_~i~0#1), 4); 791#L517 assume sort_#t~mem4#1 > sort_#t~mem5#1;havoc sort_#t~mem4#1;havoc sort_#t~mem5#1;call sort_#t~mem6#1 := read~int(sort_~x#1.base, sort_~x#1.offset + 4 * sort_~i~0#1, 4);sort_~temp~0#1 := sort_#t~mem6#1;havoc sort_#t~mem6#1;call sort_#t~mem7#1 := read~int(sort_~x#1.base, sort_~x#1.offset + 4 * (1 + sort_~i~0#1), 4);call write~int(sort_#t~mem7#1, sort_~x#1.base, sort_~x#1.offset + 4 * sort_~i~0#1, 4);havoc sort_#t~mem7#1;call write~int(sort_~temp~0#1, sort_~x#1.base, sort_~x#1.offset + 4 * (1 + sort_~i~0#1), 4); 796#L516-2 sort_#t~post3#1 := sort_~i~0#1;sort_~i~0#1 := 1 + sort_#t~post3#1;havoc sort_#t~post3#1; 790#L516-3 [2021-12-07 00:24:20,120 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-07 00:24:20,120 INFO L85 PathProgramCache]: Analyzing trace with hash 1850126805, now seen corresponding path program 2 times [2021-12-07 00:24:20,120 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-07 00:24:20,120 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [761518261] [2021-12-07 00:24:20,120 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-07 00:24:20,121 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-07 00:24:20,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:24:20,132 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4fd24422-a763-4b95-b367-c2bd5e1ca139/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (27)] Ended with exit code 0 [2021-12-07 00:24:20,173 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 2 proven. 9 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-07 00:24:20,173 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-07 00:24:20,173 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [761518261] [2021-12-07 00:24:20,173 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [761518261] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-07 00:24:20,173 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [763697836] [2021-12-07 00:24:20,173 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-12-07 00:24:20,173 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-07 00:24:20,174 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4fd24422-a763-4b95-b367-c2bd5e1ca139/bin/uautomizer-DrprNOufMa/z3 [2021-12-07 00:24:20,174 INFO L229 MonitoredProcess]: Starting monitored process 29 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4fd24422-a763-4b95-b367-c2bd5e1ca139/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-07 00:24:20,175 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4fd24422-a763-4b95-b367-c2bd5e1ca139/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (29)] Waiting until timeout for monitored process [2021-12-07 00:24:20,214 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-12-07 00:24:20,214 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-12-07 00:24:20,215 INFO L263 TraceCheckSpWp]: Trace formula consists of 101 conjuncts, 5 conjunts are in the unsatisfiable core [2021-12-07 00:24:20,216 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-07 00:24:20,252 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2021-12-07 00:24:20,253 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-12-07 00:24:20,271 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2021-12-07 00:24:20,271 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [763697836] provided 0 perfect and 2 imperfect interpolant sequences [2021-12-07 00:24:20,272 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-12-07 00:24:20,272 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 5, 5] total 13 [2021-12-07 00:24:20,272 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [120965336] [2021-12-07 00:24:20,272 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-12-07 00:24:20,272 INFO L796 eck$LassoCheckResult]: stem already infeasible [2021-12-07 00:24:20,273 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-07 00:24:20,273 INFO L85 PathProgramCache]: Analyzing trace with hash 68618, now seen corresponding path program 3 times [2021-12-07 00:24:20,273 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-07 00:24:20,273 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2018910663] [2021-12-07 00:24:20,273 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-07 00:24:20,273 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-07 00:24:20,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-07 00:24:20,278 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-07 00:24:20,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-07 00:24:20,282 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-07 00:24:20,340 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-07 00:24:20,340 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2021-12-07 00:24:20,340 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=126, Unknown=0, NotChecked=0, Total=156 [2021-12-07 00:24:20,341 INFO L87 Difference]: Start difference. First operand 22 states and 27 transitions. cyclomatic complexity: 8 Second operand has 13 states, 13 states have (on average 2.3846153846153846) internal successors, (31), 13 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-07 00:24:20,461 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-07 00:24:20,461 INFO L93 Difference]: Finished difference Result 45 states and 58 transitions. [2021-12-07 00:24:20,461 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-12-07 00:24:20,462 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 45 states and 58 transitions. [2021-12-07 00:24:20,462 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2021-12-07 00:24:20,463 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 45 states to 43 states and 56 transitions. [2021-12-07 00:24:20,463 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 16 [2021-12-07 00:24:20,463 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 16 [2021-12-07 00:24:20,463 INFO L73 IsDeterministic]: Start isDeterministic. Operand 43 states and 56 transitions. [2021-12-07 00:24:20,463 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2021-12-07 00:24:20,463 INFO L681 BuchiCegarLoop]: Abstraction has 43 states and 56 transitions. [2021-12-07 00:24:20,463 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 43 states and 56 transitions. [2021-12-07 00:24:20,464 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 43 to 25. [2021-12-07 00:24:20,464 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 25 states, 25 states have (on average 1.24) internal successors, (31), 24 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-07 00:24:20,465 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25 states to 25 states and 31 transitions. [2021-12-07 00:24:20,465 INFO L704 BuchiCegarLoop]: Abstraction has 25 states and 31 transitions. [2021-12-07 00:24:20,465 INFO L587 BuchiCegarLoop]: Abstraction has 25 states and 31 transitions. [2021-12-07 00:24:20,465 INFO L425 BuchiCegarLoop]: ======== Iteration 9============ [2021-12-07 00:24:20,465 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 25 states and 31 transitions. [2021-12-07 00:24:20,465 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2021-12-07 00:24:20,465 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-12-07 00:24:20,465 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-12-07 00:24:20,466 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-07 00:24:20,466 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2021-12-07 00:24:20,466 INFO L791 eck$LassoCheckResult]: Stem: 991#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier; 992#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet8#1, main_#t~malloc9#1.base, main_#t~malloc9#1.offset, main_#t~nondet11#1, main_#t~post10#1, main_~i~1#1, main_~array_size~0#1, main_~numbers~0#1.base, main_~numbers~0#1.offset;main_~array_size~0#1 := main_#t~nondet8#1;havoc main_#t~nondet8#1; 993#L523 assume !(main_~array_size~0#1 < 1 || main_~array_size~0#1 % 4294967296 >= 536870911); 994#L523-2 call main_#t~malloc9#1.base, main_#t~malloc9#1.offset := #Ultimate.allocOnStack(4 * main_~array_size~0#1);main_~numbers~0#1.base, main_~numbers~0#1.offset := main_#t~malloc9#1.base, main_#t~malloc9#1.offset;main_~i~1#1 := 0; 997#L528-3 assume !!(main_~i~1#1 < main_~array_size~0#1);call write~int(main_#t~nondet11#1, main_~numbers~0#1.base, main_~numbers~0#1.offset + 4 * main_~i~1#1, 4);havoc main_#t~nondet11#1; 998#L528-2 main_#t~post10#1 := main_~i~1#1;main_~i~1#1 := 1 + main_#t~post10#1;havoc main_#t~post10#1; 999#L528-3 assume !!(main_~i~1#1 < main_~array_size~0#1);call write~int(main_#t~nondet11#1, main_~numbers~0#1.base, main_~numbers~0#1.offset + 4 * main_~i~1#1, 4);havoc main_#t~nondet11#1; 1000#L528-2 main_#t~post10#1 := main_~i~1#1;main_~i~1#1 := 1 + main_#t~post10#1;havoc main_#t~post10#1; 1010#L528-3 assume !!(main_~i~1#1 < main_~array_size~0#1);call write~int(main_#t~nondet11#1, main_~numbers~0#1.base, main_~numbers~0#1.offset + 4 * main_~i~1#1, 4);havoc main_#t~nondet11#1; 1013#L528-2 main_#t~post10#1 := main_~i~1#1;main_~i~1#1 := 1 + main_#t~post10#1;havoc main_#t~post10#1; 1012#L528-3 assume !(main_~i~1#1 < main_~array_size~0#1); 995#L528-4 assume { :begin_inline_sort } true;sort_#in~x#1.base, sort_#in~x#1.offset, sort_#in~n#1 := main_~numbers~0#1.base, main_~numbers~0#1.offset, main_~array_size~0#1;havoc sort_#t~mem4#1, sort_#t~mem5#1, sort_#t~mem6#1, sort_#t~mem7#1, sort_~temp~0#1, sort_#t~post3#1, sort_#t~post2#1, sort_~x#1.base, sort_~x#1.offset, sort_~n#1, sort_~pass~0#1, sort_~i~0#1;sort_~x#1.base, sort_~x#1.offset := sort_#in~x#1.base, sort_#in~x#1.offset;sort_~n#1 := sort_#in~n#1;havoc sort_~pass~0#1;havoc sort_~i~0#1;sort_~pass~0#1 := 1; 996#L515-3 assume !!(sort_~pass~0#1 < sort_~n#1);sort_~i~0#1 := 0; 1005#L516-3 assume !!(sort_~i~0#1 < sort_~n#1 - sort_~pass~0#1);call sort_#t~mem4#1 := read~int(sort_~x#1.base, sort_~x#1.offset + 4 * sort_~i~0#1, 4);call sort_#t~mem5#1 := read~int(sort_~x#1.base, sort_~x#1.offset + 4 * (1 + sort_~i~0#1), 4); 1015#L517 assume !(sort_#t~mem4#1 > sort_#t~mem5#1);havoc sort_#t~mem4#1;havoc sort_#t~mem5#1; 1009#L516-2 sort_#t~post3#1 := sort_~i~0#1;sort_~i~0#1 := 1 + sort_#t~post3#1;havoc sort_#t~post3#1; 1003#L516-3 assume !!(sort_~i~0#1 < sort_~n#1 - sort_~pass~0#1);call sort_#t~mem4#1 := read~int(sort_~x#1.base, sort_~x#1.offset + 4 * sort_~i~0#1, 4);call sort_#t~mem5#1 := read~int(sort_~x#1.base, sort_~x#1.offset + 4 * (1 + sort_~i~0#1), 4); 1004#L517 assume !(sort_#t~mem4#1 > sort_#t~mem5#1);havoc sort_#t~mem4#1;havoc sort_#t~mem5#1; 1011#L516-2 sort_#t~post3#1 := sort_~i~0#1;sort_~i~0#1 := 1 + sort_#t~post3#1;havoc sort_#t~post3#1; 1014#L516-3 assume !(sort_~i~0#1 < sort_~n#1 - sort_~pass~0#1); 1007#L515-2 sort_#t~post2#1 := sort_~pass~0#1;sort_~pass~0#1 := 1 + sort_#t~post2#1;havoc sort_#t~post2#1; 1006#L515-3 assume !!(sort_~pass~0#1 < sort_~n#1);sort_~i~0#1 := 0; 1001#L516-3 [2021-12-07 00:24:20,466 INFO L793 eck$LassoCheckResult]: Loop: 1001#L516-3 assume !!(sort_~i~0#1 < sort_~n#1 - sort_~pass~0#1);call sort_#t~mem4#1 := read~int(sort_~x#1.base, sort_~x#1.offset + 4 * sort_~i~0#1, 4);call sort_#t~mem5#1 := read~int(sort_~x#1.base, sort_~x#1.offset + 4 * (1 + sort_~i~0#1), 4); 1002#L517 assume sort_#t~mem4#1 > sort_#t~mem5#1;havoc sort_#t~mem4#1;havoc sort_#t~mem5#1;call sort_#t~mem6#1 := read~int(sort_~x#1.base, sort_~x#1.offset + 4 * sort_~i~0#1, 4);sort_~temp~0#1 := sort_#t~mem6#1;havoc sort_#t~mem6#1;call sort_#t~mem7#1 := read~int(sort_~x#1.base, sort_~x#1.offset + 4 * (1 + sort_~i~0#1), 4);call write~int(sort_#t~mem7#1, sort_~x#1.base, sort_~x#1.offset + 4 * sort_~i~0#1, 4);havoc sort_#t~mem7#1;call write~int(sort_~temp~0#1, sort_~x#1.base, sort_~x#1.offset + 4 * (1 + sort_~i~0#1), 4); 1008#L516-2 sort_#t~post3#1 := sort_~i~0#1;sort_~i~0#1 := 1 + sort_#t~post3#1;havoc sort_#t~post3#1; 1001#L516-3 [2021-12-07 00:24:20,466 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-07 00:24:20,466 INFO L85 PathProgramCache]: Analyzing trace with hash -135460634, now seen corresponding path program 3 times [2021-12-07 00:24:20,466 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-07 00:24:20,466 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1211425176] [2021-12-07 00:24:20,467 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-07 00:24:20,467 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-07 00:24:20,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-07 00:24:20,481 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-07 00:24:20,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-07 00:24:20,498 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-07 00:24:20,499 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-07 00:24:20,499 INFO L85 PathProgramCache]: Analyzing trace with hash 68618, now seen corresponding path program 4 times [2021-12-07 00:24:20,499 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-07 00:24:20,499 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1672480079] [2021-12-07 00:24:20,499 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-07 00:24:20,500 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-07 00:24:20,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-07 00:24:20,504 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-07 00:24:20,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-07 00:24:20,508 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-07 00:24:20,509 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-07 00:24:20,509 INFO L85 PathProgramCache]: Analyzing trace with hash 1761549573, now seen corresponding path program 1 times [2021-12-07 00:24:20,509 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-07 00:24:20,509 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1448799720] [2021-12-07 00:24:20,509 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-07 00:24:20,509 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-07 00:24:20,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:24:20,705 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 5 proven. 16 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-12-07 00:24:20,705 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-07 00:24:20,705 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1448799720] [2021-12-07 00:24:20,706 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1448799720] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-07 00:24:20,706 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2101633083] [2021-12-07 00:24:20,706 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-07 00:24:20,706 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-07 00:24:20,706 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4fd24422-a763-4b95-b367-c2bd5e1ca139/bin/uautomizer-DrprNOufMa/z3 [2021-12-07 00:24:20,707 INFO L229 MonitoredProcess]: Starting monitored process 30 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4fd24422-a763-4b95-b367-c2bd5e1ca139/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-07 00:24:20,707 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4fd24422-a763-4b95-b367-c2bd5e1ca139/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (30)] Waiting until timeout for monitored process [2021-12-07 00:24:20,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:24:20,747 INFO L263 TraceCheckSpWp]: Trace formula consists of 143 conjuncts, 18 conjunts are in the unsatisfiable core [2021-12-07 00:24:20,748 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-07 00:24:20,832 INFO L354 Elim1Store]: treesize reduction 9, result has 10.0 percent of original size [2021-12-07 00:24:20,833 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 30 treesize of output 10 [2021-12-07 00:24:20,843 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 6 proven. 10 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2021-12-07 00:24:20,843 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-12-07 00:24:20,898 INFO L354 Elim1Store]: treesize reduction 54, result has 34.1 percent of original size [2021-12-07 00:24:20,898 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 34 treesize of output 34 [2021-12-07 00:24:20,935 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 4 proven. 7 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2021-12-07 00:24:20,935 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2101633083] provided 0 perfect and 2 imperfect interpolant sequences [2021-12-07 00:24:20,936 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-12-07 00:24:20,936 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 8, 7] total 21 [2021-12-07 00:24:20,936 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [613947965] [2021-12-07 00:24:20,936 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-12-07 00:24:20,993 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-07 00:24:20,993 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2021-12-07 00:24:20,993 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=79, Invalid=341, Unknown=0, NotChecked=0, Total=420 [2021-12-07 00:24:20,993 INFO L87 Difference]: Start difference. First operand 25 states and 31 transitions. cyclomatic complexity: 9 Second operand has 21 states, 21 states have (on average 2.2857142857142856) internal successors, (48), 21 states have internal predecessors, (48), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-07 00:24:21,148 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-07 00:24:21,148 INFO L93 Difference]: Finished difference Result 45 states and 58 transitions. [2021-12-07 00:24:21,148 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-12-07 00:24:21,149 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 45 states and 58 transitions. [2021-12-07 00:24:21,150 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 6 [2021-12-07 00:24:21,151 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 45 states to 45 states and 58 transitions. [2021-12-07 00:24:21,152 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 21 [2021-12-07 00:24:21,152 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 21 [2021-12-07 00:24:21,152 INFO L73 IsDeterministic]: Start isDeterministic. Operand 45 states and 58 transitions. [2021-12-07 00:24:21,152 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2021-12-07 00:24:21,152 INFO L681 BuchiCegarLoop]: Abstraction has 45 states and 58 transitions. [2021-12-07 00:24:21,152 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 45 states and 58 transitions. [2021-12-07 00:24:21,155 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 45 to 34. [2021-12-07 00:24:21,155 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 34 states, 34 states have (on average 1.2647058823529411) internal successors, (43), 33 states have internal predecessors, (43), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-07 00:24:21,155 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34 states to 34 states and 43 transitions. [2021-12-07 00:24:21,155 INFO L704 BuchiCegarLoop]: Abstraction has 34 states and 43 transitions. [2021-12-07 00:24:21,156 INFO L587 BuchiCegarLoop]: Abstraction has 34 states and 43 transitions. [2021-12-07 00:24:21,156 INFO L425 BuchiCegarLoop]: ======== Iteration 10============ [2021-12-07 00:24:21,156 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 34 states and 43 transitions. [2021-12-07 00:24:21,156 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2021-12-07 00:24:21,162 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-12-07 00:24:21,163 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-12-07 00:24:21,163 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-07 00:24:21,163 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2021-12-07 00:24:21,164 INFO L791 eck$LassoCheckResult]: Stem: 1248#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier; 1249#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet8#1, main_#t~malloc9#1.base, main_#t~malloc9#1.offset, main_#t~nondet11#1, main_#t~post10#1, main_~i~1#1, main_~array_size~0#1, main_~numbers~0#1.base, main_~numbers~0#1.offset;main_~array_size~0#1 := main_#t~nondet8#1;havoc main_#t~nondet8#1; 1250#L523 assume !(main_~array_size~0#1 < 1 || main_~array_size~0#1 % 4294967296 >= 536870911); 1251#L523-2 call main_#t~malloc9#1.base, main_#t~malloc9#1.offset := #Ultimate.allocOnStack(4 * main_~array_size~0#1);main_~numbers~0#1.base, main_~numbers~0#1.offset := main_#t~malloc9#1.base, main_#t~malloc9#1.offset;main_~i~1#1 := 0; 1254#L528-3 assume !!(main_~i~1#1 < main_~array_size~0#1);call write~int(main_#t~nondet11#1, main_~numbers~0#1.base, main_~numbers~0#1.offset + 4 * main_~i~1#1, 4);havoc main_#t~nondet11#1; 1255#L528-2 main_#t~post10#1 := main_~i~1#1;main_~i~1#1 := 1 + main_#t~post10#1;havoc main_#t~post10#1; 1256#L528-3 assume !!(main_~i~1#1 < main_~array_size~0#1);call write~int(main_#t~nondet11#1, main_~numbers~0#1.base, main_~numbers~0#1.offset + 4 * main_~i~1#1, 4);havoc main_#t~nondet11#1; 1257#L528-2 main_#t~post10#1 := main_~i~1#1;main_~i~1#1 := 1 + main_#t~post10#1;havoc main_#t~post10#1; 1270#L528-3 assume !!(main_~i~1#1 < main_~array_size~0#1);call write~int(main_#t~nondet11#1, main_~numbers~0#1.base, main_~numbers~0#1.offset + 4 * main_~i~1#1, 4);havoc main_#t~nondet11#1; 1275#L528-2 main_#t~post10#1 := main_~i~1#1;main_~i~1#1 := 1 + main_#t~post10#1;havoc main_#t~post10#1; 1274#L528-3 assume !(main_~i~1#1 < main_~array_size~0#1); 1252#L528-4 assume { :begin_inline_sort } true;sort_#in~x#1.base, sort_#in~x#1.offset, sort_#in~n#1 := main_~numbers~0#1.base, main_~numbers~0#1.offset, main_~array_size~0#1;havoc sort_#t~mem4#1, sort_#t~mem5#1, sort_#t~mem6#1, sort_#t~mem7#1, sort_~temp~0#1, sort_#t~post3#1, sort_#t~post2#1, sort_~x#1.base, sort_~x#1.offset, sort_~n#1, sort_~pass~0#1, sort_~i~0#1;sort_~x#1.base, sort_~x#1.offset := sort_#in~x#1.base, sort_#in~x#1.offset;sort_~n#1 := sort_#in~n#1;havoc sort_~pass~0#1;havoc sort_~i~0#1;sort_~pass~0#1 := 1; 1253#L515-3 assume !!(sort_~pass~0#1 < sort_~n#1);sort_~i~0#1 := 0; 1264#L516-3 assume !!(sort_~i~0#1 < sort_~n#1 - sort_~pass~0#1);call sort_#t~mem4#1 := read~int(sort_~x#1.base, sort_~x#1.offset + 4 * sort_~i~0#1, 4);call sort_#t~mem5#1 := read~int(sort_~x#1.base, sort_~x#1.offset + 4 * (1 + sort_~i~0#1), 4); 1279#L517 assume !(sort_#t~mem4#1 > sort_#t~mem5#1);havoc sort_#t~mem4#1;havoc sort_#t~mem5#1; 1269#L516-2 sort_#t~post3#1 := sort_~i~0#1;sort_~i~0#1 := 1 + sort_#t~post3#1;havoc sort_#t~post3#1; 1260#L516-3 assume !!(sort_~i~0#1 < sort_~n#1 - sort_~pass~0#1);call sort_#t~mem4#1 := read~int(sort_~x#1.base, sort_~x#1.offset + 4 * sort_~i~0#1, 4);call sort_#t~mem5#1 := read~int(sort_~x#1.base, sort_~x#1.offset + 4 * (1 + sort_~i~0#1), 4); 1261#L517 assume sort_#t~mem4#1 > sort_#t~mem5#1;havoc sort_#t~mem4#1;havoc sort_#t~mem5#1;call sort_#t~mem6#1 := read~int(sort_~x#1.base, sort_~x#1.offset + 4 * sort_~i~0#1, 4);sort_~temp~0#1 := sort_#t~mem6#1;havoc sort_#t~mem6#1;call sort_#t~mem7#1 := read~int(sort_~x#1.base, sort_~x#1.offset + 4 * (1 + sort_~i~0#1), 4);call write~int(sort_#t~mem7#1, sort_~x#1.base, sort_~x#1.offset + 4 * sort_~i~0#1, 4);havoc sort_#t~mem7#1;call write~int(sort_~temp~0#1, sort_~x#1.base, sort_~x#1.offset + 4 * (1 + sort_~i~0#1), 4); 1272#L516-2 sort_#t~post3#1 := sort_~i~0#1;sort_~i~0#1 := 1 + sort_#t~post3#1;havoc sort_#t~post3#1; 1278#L516-3 assume !(sort_~i~0#1 < sort_~n#1 - sort_~pass~0#1); 1262#L515-2 sort_#t~post2#1 := sort_~pass~0#1;sort_~pass~0#1 := 1 + sort_#t~post2#1;havoc sort_#t~post2#1; 1263#L515-3 assume !!(sort_~pass~0#1 < sort_~n#1);sort_~i~0#1 := 0; 1258#L516-3 [2021-12-07 00:24:21,164 INFO L793 eck$LassoCheckResult]: Loop: 1258#L516-3 assume !!(sort_~i~0#1 < sort_~n#1 - sort_~pass~0#1);call sort_#t~mem4#1 := read~int(sort_~x#1.base, sort_~x#1.offset + 4 * sort_~i~0#1, 4);call sort_#t~mem5#1 := read~int(sort_~x#1.base, sort_~x#1.offset + 4 * (1 + sort_~i~0#1), 4); 1259#L517 assume sort_#t~mem4#1 > sort_#t~mem5#1;havoc sort_#t~mem4#1;havoc sort_#t~mem5#1;call sort_#t~mem6#1 := read~int(sort_~x#1.base, sort_~x#1.offset + 4 * sort_~i~0#1, 4);sort_~temp~0#1 := sort_#t~mem6#1;havoc sort_#t~mem6#1;call sort_#t~mem7#1 := read~int(sort_~x#1.base, sort_~x#1.offset + 4 * (1 + sort_~i~0#1), 4);call write~int(sort_#t~mem7#1, sort_~x#1.base, sort_~x#1.offset + 4 * sort_~i~0#1, 4);havoc sort_#t~mem7#1;call write~int(sort_~temp~0#1, sort_~x#1.base, sort_~x#1.offset + 4 * (1 + sort_~i~0#1), 4); 1268#L516-2 sort_#t~post3#1 := sort_~i~0#1;sort_~i~0#1 := 1 + sort_#t~post3#1;havoc sort_#t~post3#1; 1258#L516-3 [2021-12-07 00:24:21,164 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-07 00:24:21,164 INFO L85 PathProgramCache]: Analyzing trace with hash -137307676, now seen corresponding path program 2 times [2021-12-07 00:24:21,165 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-07 00:24:21,165 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1498199334] [2021-12-07 00:24:21,165 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-07 00:24:21,165 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-07 00:24:21,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-07 00:24:21,182 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-07 00:24:21,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-07 00:24:21,200 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-07 00:24:21,200 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-07 00:24:21,201 INFO L85 PathProgramCache]: Analyzing trace with hash 68618, now seen corresponding path program 5 times [2021-12-07 00:24:21,201 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-07 00:24:21,201 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1465109393] [2021-12-07 00:24:21,201 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-07 00:24:21,201 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-07 00:24:21,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-07 00:24:21,206 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-07 00:24:21,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-07 00:24:21,211 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-07 00:24:21,211 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-07 00:24:21,211 INFO L85 PathProgramCache]: Analyzing trace with hash -1724071097, now seen corresponding path program 3 times [2021-12-07 00:24:21,211 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-07 00:24:21,212 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1806489147] [2021-12-07 00:24:21,212 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-07 00:24:21,212 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-07 00:24:21,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-07 00:24:21,234 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-07 00:24:21,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-07 00:24:21,256 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-07 00:24:22,175 INFO L210 LassoAnalysis]: Preferences: [2021-12-07 00:24:22,175 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-12-07 00:24:22,175 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-12-07 00:24:22,175 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-12-07 00:24:22,175 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2021-12-07 00:24:22,175 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-07 00:24:22,175 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-12-07 00:24:22,175 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-12-07 00:24:22,175 INFO L133 ssoRankerPreferences]: Filename of dumped script: java_BubbleSort-alloca-1.i_Iteration10_Lasso [2021-12-07 00:24:22,175 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-12-07 00:24:22,175 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-12-07 00:24:22,177 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 00:24:22,179 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 00:24:22,179 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 00:24:22,180 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 00:24:22,181 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 00:24:22,182 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 00:24:22,183 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 00:24:22,184 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 00:24:22,185 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 00:24:22,185 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 00:24:22,186 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 00:24:22,452 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 00:24:22,453 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-07 00:24:22,454 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 00:24:22,455 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 00:24:22,456 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-07 00:24:22,683 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-12-07 00:24:22,684 INFO L490 LassoAnalysis]: Using template 'affine'. [2021-12-07 00:24:22,684 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-07 00:24:22,684 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4fd24422-a763-4b95-b367-c2bd5e1ca139/bin/uautomizer-DrprNOufMa/z3 [2021-12-07 00:24:22,685 INFO L229 MonitoredProcess]: Starting monitored process 31 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4fd24422-a763-4b95-b367-c2bd5e1ca139/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-07 00:24:22,685 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4fd24422-a763-4b95-b367-c2bd5e1ca139/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (31)] Waiting until timeout for monitored process [2021-12-07 00:24:22,686 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 00:24:22,692 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-07 00:24:22,693 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-07 00:24:22,693 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-07 00:24:22,693 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-07 00:24:22,694 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-12-07 00:24:22,694 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-12-07 00:24:22,696 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-07 00:24:22,714 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4fd24422-a763-4b95-b367-c2bd5e1ca139/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (31)] Ended with exit code 0 [2021-12-07 00:24:22,714 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-07 00:24:22,714 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4fd24422-a763-4b95-b367-c2bd5e1ca139/bin/uautomizer-DrprNOufMa/z3 [2021-12-07 00:24:22,715 INFO L229 MonitoredProcess]: Starting monitored process 32 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4fd24422-a763-4b95-b367-c2bd5e1ca139/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-07 00:24:22,716 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4fd24422-a763-4b95-b367-c2bd5e1ca139/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (32)] Waiting until timeout for monitored process [2021-12-07 00:24:22,717 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 00:24:22,724 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-07 00:24:22,724 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-12-07 00:24:22,724 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-07 00:24:22,724 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-07 00:24:22,724 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-07 00:24:22,725 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-12-07 00:24:22,725 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-12-07 00:24:22,726 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-07 00:24:22,744 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4fd24422-a763-4b95-b367-c2bd5e1ca139/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (32)] Ended with exit code 0 [2021-12-07 00:24:22,744 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-07 00:24:22,744 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4fd24422-a763-4b95-b367-c2bd5e1ca139/bin/uautomizer-DrprNOufMa/z3 [2021-12-07 00:24:22,745 INFO L229 MonitoredProcess]: Starting monitored process 33 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4fd24422-a763-4b95-b367-c2bd5e1ca139/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-07 00:24:22,746 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4fd24422-a763-4b95-b367-c2bd5e1ca139/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (33)] Waiting until timeout for monitored process [2021-12-07 00:24:22,746 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 00:24:22,753 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-07 00:24:22,753 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-07 00:24:22,753 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-07 00:24:22,753 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-07 00:24:22,755 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-12-07 00:24:22,755 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-12-07 00:24:22,757 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-07 00:24:22,775 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4fd24422-a763-4b95-b367-c2bd5e1ca139/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (33)] Forceful destruction successful, exit code 0 [2021-12-07 00:24:22,775 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-07 00:24:22,775 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4fd24422-a763-4b95-b367-c2bd5e1ca139/bin/uautomizer-DrprNOufMa/z3 [2021-12-07 00:24:22,776 INFO L229 MonitoredProcess]: Starting monitored process 34 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4fd24422-a763-4b95-b367-c2bd5e1ca139/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-07 00:24:22,777 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4fd24422-a763-4b95-b367-c2bd5e1ca139/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (34)] Waiting until timeout for monitored process [2021-12-07 00:24:22,777 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 00:24:22,784 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-07 00:24:22,784 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-12-07 00:24:22,784 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-07 00:24:22,785 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-07 00:24:22,785 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-07 00:24:22,785 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-12-07 00:24:22,785 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-12-07 00:24:22,786 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-07 00:24:22,803 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4fd24422-a763-4b95-b367-c2bd5e1ca139/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (34)] Ended with exit code 0 [2021-12-07 00:24:22,804 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-07 00:24:22,804 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4fd24422-a763-4b95-b367-c2bd5e1ca139/bin/uautomizer-DrprNOufMa/z3 [2021-12-07 00:24:22,804 INFO L229 MonitoredProcess]: Starting monitored process 35 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4fd24422-a763-4b95-b367-c2bd5e1ca139/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-07 00:24:22,805 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4fd24422-a763-4b95-b367-c2bd5e1ca139/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (35)] Waiting until timeout for monitored process [2021-12-07 00:24:22,805 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 00:24:22,812 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-07 00:24:22,812 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-12-07 00:24:22,812 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-07 00:24:22,812 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-07 00:24:22,812 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-07 00:24:22,813 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-12-07 00:24:22,813 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-12-07 00:24:22,814 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-07 00:24:22,832 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4fd24422-a763-4b95-b367-c2bd5e1ca139/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (35)] Ended with exit code 0 [2021-12-07 00:24:22,832 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-07 00:24:22,832 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4fd24422-a763-4b95-b367-c2bd5e1ca139/bin/uautomizer-DrprNOufMa/z3 [2021-12-07 00:24:22,834 INFO L229 MonitoredProcess]: Starting monitored process 36 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4fd24422-a763-4b95-b367-c2bd5e1ca139/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-07 00:24:22,834 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4fd24422-a763-4b95-b367-c2bd5e1ca139/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (36)] Waiting until timeout for monitored process [2021-12-07 00:24:22,835 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-12-07 00:24:22,842 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-07 00:24:22,842 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-12-07 00:24:22,842 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-07 00:24:22,842 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-07 00:24:22,842 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-07 00:24:22,843 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-12-07 00:24:22,843 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-12-07 00:24:22,844 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-07 00:24:22,861 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4fd24422-a763-4b95-b367-c2bd5e1ca139/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (36)] Forceful destruction successful, exit code 0 [2021-12-07 00:24:22,862 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-07 00:24:22,862 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4fd24422-a763-4b95-b367-c2bd5e1ca139/bin/uautomizer-DrprNOufMa/z3 [2021-12-07 00:24:22,862 INFO L229 MonitoredProcess]: Starting monitored process 37 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4fd24422-a763-4b95-b367-c2bd5e1ca139/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-07 00:24:22,863 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4fd24422-a763-4b95-b367-c2bd5e1ca139/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (37)] Waiting until timeout for monitored process [2021-12-07 00:24:22,864 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 00:24:22,871 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-07 00:24:22,871 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-12-07 00:24:22,871 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-07 00:24:22,871 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-07 00:24:22,871 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-07 00:24:22,871 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-12-07 00:24:22,871 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-12-07 00:24:22,873 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-07 00:24:22,890 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4fd24422-a763-4b95-b367-c2bd5e1ca139/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (37)] Ended with exit code 0 [2021-12-07 00:24:22,891 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-07 00:24:22,891 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4fd24422-a763-4b95-b367-c2bd5e1ca139/bin/uautomizer-DrprNOufMa/z3 [2021-12-07 00:24:22,891 INFO L229 MonitoredProcess]: Starting monitored process 38 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4fd24422-a763-4b95-b367-c2bd5e1ca139/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-07 00:24:22,892 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4fd24422-a763-4b95-b367-c2bd5e1ca139/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (38)] Waiting until timeout for monitored process [2021-12-07 00:24:22,893 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 00:24:22,900 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-07 00:24:22,900 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-12-07 00:24:22,900 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-07 00:24:22,900 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-07 00:24:22,900 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-07 00:24:22,901 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-12-07 00:24:22,901 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-12-07 00:24:22,902 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-07 00:24:22,920 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4fd24422-a763-4b95-b367-c2bd5e1ca139/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (38)] Ended with exit code 0 [2021-12-07 00:24:22,920 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-07 00:24:22,920 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4fd24422-a763-4b95-b367-c2bd5e1ca139/bin/uautomizer-DrprNOufMa/z3 [2021-12-07 00:24:22,921 INFO L229 MonitoredProcess]: Starting monitored process 39 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4fd24422-a763-4b95-b367-c2bd5e1ca139/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-07 00:24:22,921 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4fd24422-a763-4b95-b367-c2bd5e1ca139/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (39)] Waiting until timeout for monitored process [2021-12-07 00:24:22,922 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 00:24:22,928 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-07 00:24:22,928 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-12-07 00:24:22,928 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-07 00:24:22,928 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-07 00:24:22,928 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-07 00:24:22,929 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-12-07 00:24:22,929 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-12-07 00:24:22,930 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-07 00:24:22,947 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4fd24422-a763-4b95-b367-c2bd5e1ca139/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (39)] Ended with exit code 0 [2021-12-07 00:24:22,948 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-07 00:24:22,948 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4fd24422-a763-4b95-b367-c2bd5e1ca139/bin/uautomizer-DrprNOufMa/z3 [2021-12-07 00:24:22,948 INFO L229 MonitoredProcess]: Starting monitored process 40 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4fd24422-a763-4b95-b367-c2bd5e1ca139/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-07 00:24:22,949 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4fd24422-a763-4b95-b367-c2bd5e1ca139/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (40)] Waiting until timeout for monitored process [2021-12-07 00:24:22,950 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 00:24:22,958 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-07 00:24:22,959 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-07 00:24:22,959 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-07 00:24:22,959 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-07 00:24:22,960 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-12-07 00:24:22,960 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-12-07 00:24:22,963 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-07 00:24:22,980 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4fd24422-a763-4b95-b367-c2bd5e1ca139/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (40)] Forceful destruction successful, exit code 0 [2021-12-07 00:24:22,981 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-07 00:24:22,981 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4fd24422-a763-4b95-b367-c2bd5e1ca139/bin/uautomizer-DrprNOufMa/z3 [2021-12-07 00:24:22,981 INFO L229 MonitoredProcess]: Starting monitored process 41 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4fd24422-a763-4b95-b367-c2bd5e1ca139/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-07 00:24:22,982 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4fd24422-a763-4b95-b367-c2bd5e1ca139/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (41)] Waiting until timeout for monitored process [2021-12-07 00:24:22,983 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 00:24:22,990 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-07 00:24:22,990 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-07 00:24:22,990 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-07 00:24:22,990 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-07 00:24:22,991 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-12-07 00:24:22,991 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-12-07 00:24:22,995 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-07 00:24:23,013 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4fd24422-a763-4b95-b367-c2bd5e1ca139/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (41)] Ended with exit code 0 [2021-12-07 00:24:23,013 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-07 00:24:23,013 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4fd24422-a763-4b95-b367-c2bd5e1ca139/bin/uautomizer-DrprNOufMa/z3 [2021-12-07 00:24:23,014 INFO L229 MonitoredProcess]: Starting monitored process 42 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4fd24422-a763-4b95-b367-c2bd5e1ca139/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-07 00:24:23,015 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4fd24422-a763-4b95-b367-c2bd5e1ca139/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (42)] Waiting until timeout for monitored process [2021-12-07 00:24:23,015 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 00:24:23,022 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-07 00:24:23,022 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-07 00:24:23,022 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-07 00:24:23,022 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-07 00:24:23,024 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-12-07 00:24:23,024 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-12-07 00:24:23,029 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-07 00:24:23,047 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4fd24422-a763-4b95-b367-c2bd5e1ca139/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (42)] Ended with exit code 0 [2021-12-07 00:24:23,047 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-07 00:24:23,047 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4fd24422-a763-4b95-b367-c2bd5e1ca139/bin/uautomizer-DrprNOufMa/z3 [2021-12-07 00:24:23,048 INFO L229 MonitoredProcess]: Starting monitored process 43 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4fd24422-a763-4b95-b367-c2bd5e1ca139/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-07 00:24:23,049 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4fd24422-a763-4b95-b367-c2bd5e1ca139/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (43)] Waiting until timeout for monitored process [2021-12-07 00:24:23,049 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 00:24:23,056 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-07 00:24:23,056 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-07 00:24:23,056 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-07 00:24:23,056 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-07 00:24:23,061 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-12-07 00:24:23,061 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-12-07 00:24:23,072 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-07 00:24:23,090 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4fd24422-a763-4b95-b367-c2bd5e1ca139/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (43)] Ended with exit code 0 [2021-12-07 00:24:23,090 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-07 00:24:23,090 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4fd24422-a763-4b95-b367-c2bd5e1ca139/bin/uautomizer-DrprNOufMa/z3 [2021-12-07 00:24:23,091 INFO L229 MonitoredProcess]: Starting monitored process 44 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4fd24422-a763-4b95-b367-c2bd5e1ca139/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-07 00:24:23,092 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4fd24422-a763-4b95-b367-c2bd5e1ca139/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (44)] Waiting until timeout for monitored process [2021-12-07 00:24:23,092 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 00:24:23,099 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-07 00:24:23,099 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-07 00:24:23,099 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-07 00:24:23,099 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-07 00:24:23,104 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-12-07 00:24:23,104 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-12-07 00:24:23,117 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2021-12-07 00:24:23,181 INFO L443 ModelExtractionUtils]: Simplification made 34 calls to the SMT solver. [2021-12-07 00:24:23,181 INFO L444 ModelExtractionUtils]: 4 out of 40 variables were initially zero. Simplification set additionally 30 variables to zero. [2021-12-07 00:24:23,181 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-07 00:24:23,181 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4fd24422-a763-4b95-b367-c2bd5e1ca139/bin/uautomizer-DrprNOufMa/z3 [2021-12-07 00:24:23,182 INFO L229 MonitoredProcess]: Starting monitored process 45 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4fd24422-a763-4b95-b367-c2bd5e1ca139/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-07 00:24:23,182 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4fd24422-a763-4b95-b367-c2bd5e1ca139/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (45)] Waiting until timeout for monitored process [2021-12-07 00:24:23,183 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2021-12-07 00:24:23,190 INFO L438 nArgumentSynthesizer]: Removed 1 redundant supporting invariants from a total of 2. [2021-12-07 00:24:23,190 INFO L513 LassoAnalysis]: Proved termination. [2021-12-07 00:24:23,190 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_sort_~i~0#1, ULTIMATE.start_sort_~pass~0#1) = -2*ULTIMATE.start_sort_~i~0#1 - 2*ULTIMATE.start_sort_~pass~0#1 + 5 Supporting invariants [-1*ULTIMATE.start_sort_~n#1 + 1*ULTIMATE.start_main_~i~1#1 >= 0] [2021-12-07 00:24:23,209 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4fd24422-a763-4b95-b367-c2bd5e1ca139/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (44)] Ended with exit code 0 [2021-12-07 00:24:23,269 INFO L297 tatePredicateManager]: 18 out of 21 supporting invariants were superfluous and have been removed [2021-12-07 00:24:23,285 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-07 00:24:23,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:24:23,300 INFO L263 TraceCheckSpWp]: Trace formula consists of 129 conjuncts, 17 conjunts are in the unsatisfiable core [2021-12-07 00:24:23,301 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-07 00:24:23,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:24:23,436 INFO L263 TraceCheckSpWp]: Trace formula consists of 35 conjuncts, 9 conjunts are in the unsatisfiable core [2021-12-07 00:24:23,437 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-07 00:24:23,464 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4fd24422-a763-4b95-b367-c2bd5e1ca139/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (45)] Ended with exit code 0 [2021-12-07 00:24:23,473 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 00:24:23,473 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.7 stem predicates 2 loop predicates [2021-12-07 00:24:23,474 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 34 states and 43 transitions. cyclomatic complexity: 12 Second operand has 9 states, 9 states have (on average 2.5555555555555554) internal successors, (23), 9 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-07 00:24:23,560 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 34 states and 43 transitions. cyclomatic complexity: 12. Second operand has 9 states, 9 states have (on average 2.5555555555555554) internal successors, (23), 9 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 64 states and 85 transitions. Complement of second has 14 states. [2021-12-07 00:24:23,560 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 11 states 7 stem states 2 non-accepting loop states 2 accepting loop states [2021-12-07 00:24:23,561 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9 states, 9 states have (on average 2.5555555555555554) internal successors, (23), 9 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-07 00:24:23,561 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 26 transitions. [2021-12-07 00:24:23,561 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 11 states and 26 transitions. Stem has 22 letters. Loop has 3 letters. [2021-12-07 00:24:23,561 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-12-07 00:24:23,561 INFO L634 RefineBuchi]: Bad chosen interpolant automaton: word not accepted [2021-12-07 00:24:23,576 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-07 00:24:23,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:24:23,592 INFO L263 TraceCheckSpWp]: Trace formula consists of 129 conjuncts, 17 conjunts are in the unsatisfiable core [2021-12-07 00:24:23,592 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-07 00:24:23,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:24:23,758 INFO L263 TraceCheckSpWp]: Trace formula consists of 35 conjuncts, 9 conjunts are in the unsatisfiable core [2021-12-07 00:24:23,758 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-07 00:24:23,790 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 00:24:23,791 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and with honda bouncer for loop.7 stem predicates 2 loop predicates [2021-12-07 00:24:23,791 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 34 states and 43 transitions. cyclomatic complexity: 12 Second operand has 9 states, 9 states have (on average 2.5555555555555554) internal successors, (23), 9 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-07 00:24:23,868 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 34 states and 43 transitions. cyclomatic complexity: 12. Second operand has 9 states, 9 states have (on average 2.5555555555555554) internal successors, (23), 9 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 64 states and 85 transitions. Complement of second has 14 states. [2021-12-07 00:24:23,869 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 11 states 7 stem states 2 non-accepting loop states 2 accepting loop states [2021-12-07 00:24:23,869 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9 states, 9 states have (on average 2.5555555555555554) internal successors, (23), 9 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-07 00:24:23,869 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 26 transitions. [2021-12-07 00:24:23,869 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 11 states and 26 transitions. Stem has 22 letters. Loop has 3 letters. [2021-12-07 00:24:23,869 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-12-07 00:24:23,869 INFO L634 RefineBuchi]: Bad chosen interpolant automaton: word not accepted [2021-12-07 00:24:23,883 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-07 00:24:23,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:24:23,898 INFO L263 TraceCheckSpWp]: Trace formula consists of 129 conjuncts, 17 conjunts are in the unsatisfiable core [2021-12-07 00:24:23,898 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-07 00:24:24,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:24:24,058 INFO L263 TraceCheckSpWp]: Trace formula consists of 35 conjuncts, 9 conjunts are in the unsatisfiable core [2021-12-07 00:24:24,058 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-07 00:24:24,087 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 00:24:24,087 INFO L152 lantAutomatonBouncer]: Defining Buchi interpolant automaton with scrooge nondeterminism in stemwith honda bouncer for stem and without honda bouncer for loop.7 stem predicates 2 loop predicates [2021-12-07 00:24:24,088 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 34 states and 43 transitions. cyclomatic complexity: 12 Second operand has 9 states, 9 states have (on average 2.5555555555555554) internal successors, (23), 9 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-07 00:24:24,169 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 34 states and 43 transitions. cyclomatic complexity: 12. Second operand has 9 states, 9 states have (on average 2.5555555555555554) internal successors, (23), 9 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 77 states and 104 transitions. Complement of second has 13 states. [2021-12-07 00:24:24,169 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 11 states 7 stem states 2 non-accepting loop states 2 accepting loop states [2021-12-07 00:24:24,169 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9 states, 9 states have (on average 2.5555555555555554) internal successors, (23), 9 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-07 00:24:24,170 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 40 transitions. [2021-12-07 00:24:24,170 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 11 states and 40 transitions. Stem has 22 letters. Loop has 3 letters. [2021-12-07 00:24:24,170 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-12-07 00:24:24,170 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 11 states and 40 transitions. Stem has 25 letters. Loop has 3 letters. [2021-12-07 00:24:24,170 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-12-07 00:24:24,170 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 11 states and 40 transitions. Stem has 22 letters. Loop has 6 letters. [2021-12-07 00:24:24,171 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-12-07 00:24:24,171 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 77 states and 104 transitions. [2021-12-07 00:24:24,171 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2021-12-07 00:24:24,172 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 77 states to 39 states and 49 transitions. [2021-12-07 00:24:24,172 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 12 [2021-12-07 00:24:24,172 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 14 [2021-12-07 00:24:24,172 INFO L73 IsDeterministic]: Start isDeterministic. Operand 39 states and 49 transitions. [2021-12-07 00:24:24,172 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2021-12-07 00:24:24,172 INFO L681 BuchiCegarLoop]: Abstraction has 39 states and 49 transitions. [2021-12-07 00:24:24,172 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 39 states and 49 transitions. [2021-12-07 00:24:24,174 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 39 to 36. [2021-12-07 00:24:24,174 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 36 states, 36 states have (on average 1.25) internal successors, (45), 35 states have internal predecessors, (45), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-07 00:24:24,174 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36 states to 36 states and 45 transitions. [2021-12-07 00:24:24,174 INFO L704 BuchiCegarLoop]: Abstraction has 36 states and 45 transitions. [2021-12-07 00:24:24,174 INFO L587 BuchiCegarLoop]: Abstraction has 36 states and 45 transitions. [2021-12-07 00:24:24,174 INFO L425 BuchiCegarLoop]: ======== Iteration 11============ [2021-12-07 00:24:24,174 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 36 states and 45 transitions. [2021-12-07 00:24:24,174 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2021-12-07 00:24:24,174 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-12-07 00:24:24,175 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-12-07 00:24:24,175 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [4, 4, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-07 00:24:24,175 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2021-12-07 00:24:24,175 INFO L791 eck$LassoCheckResult]: Stem: 1915#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier; 1916#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet8#1, main_#t~malloc9#1.base, main_#t~malloc9#1.offset, main_#t~nondet11#1, main_#t~post10#1, main_~i~1#1, main_~array_size~0#1, main_~numbers~0#1.base, main_~numbers~0#1.offset;main_~array_size~0#1 := main_#t~nondet8#1;havoc main_#t~nondet8#1; 1917#L523 assume !(main_~array_size~0#1 < 1 || main_~array_size~0#1 % 4294967296 >= 536870911); 1918#L523-2 call main_#t~malloc9#1.base, main_#t~malloc9#1.offset := #Ultimate.allocOnStack(4 * main_~array_size~0#1);main_~numbers~0#1.base, main_~numbers~0#1.offset := main_#t~malloc9#1.base, main_#t~malloc9#1.offset;main_~i~1#1 := 0; 1921#L528-3 assume !!(main_~i~1#1 < main_~array_size~0#1);call write~int(main_#t~nondet11#1, main_~numbers~0#1.base, main_~numbers~0#1.offset + 4 * main_~i~1#1, 4);havoc main_#t~nondet11#1; 1922#L528-2 main_#t~post10#1 := main_~i~1#1;main_~i~1#1 := 1 + main_#t~post10#1;havoc main_#t~post10#1; 1923#L528-3 assume !!(main_~i~1#1 < main_~array_size~0#1);call write~int(main_#t~nondet11#1, main_~numbers~0#1.base, main_~numbers~0#1.offset + 4 * main_~i~1#1, 4);havoc main_#t~nondet11#1; 1924#L528-2 main_#t~post10#1 := main_~i~1#1;main_~i~1#1 := 1 + main_#t~post10#1;havoc main_#t~post10#1; 1949#L528-3 assume !!(main_~i~1#1 < main_~array_size~0#1);call write~int(main_#t~nondet11#1, main_~numbers~0#1.base, main_~numbers~0#1.offset + 4 * main_~i~1#1, 4);havoc main_#t~nondet11#1; 1948#L528-2 main_#t~post10#1 := main_~i~1#1;main_~i~1#1 := 1 + main_#t~post10#1;havoc main_#t~post10#1; 1946#L528-3 assume !!(main_~i~1#1 < main_~array_size~0#1);call write~int(main_#t~nondet11#1, main_~numbers~0#1.base, main_~numbers~0#1.offset + 4 * main_~i~1#1, 4);havoc main_#t~nondet11#1; 1938#L528-2 main_#t~post10#1 := main_~i~1#1;main_~i~1#1 := 1 + main_#t~post10#1;havoc main_#t~post10#1; 1937#L528-3 assume !(main_~i~1#1 < main_~array_size~0#1); 1919#L528-4 assume { :begin_inline_sort } true;sort_#in~x#1.base, sort_#in~x#1.offset, sort_#in~n#1 := main_~numbers~0#1.base, main_~numbers~0#1.offset, main_~array_size~0#1;havoc sort_#t~mem4#1, sort_#t~mem5#1, sort_#t~mem6#1, sort_#t~mem7#1, sort_~temp~0#1, sort_#t~post3#1, sort_#t~post2#1, sort_~x#1.base, sort_~x#1.offset, sort_~n#1, sort_~pass~0#1, sort_~i~0#1;sort_~x#1.base, sort_~x#1.offset := sort_#in~x#1.base, sort_#in~x#1.offset;sort_~n#1 := sort_#in~n#1;havoc sort_~pass~0#1;havoc sort_~i~0#1;sort_~pass~0#1 := 1; 1920#L515-3 assume !!(sort_~pass~0#1 < sort_~n#1);sort_~i~0#1 := 0; 1931#L516-3 assume !!(sort_~i~0#1 < sort_~n#1 - sort_~pass~0#1);call sort_#t~mem4#1 := read~int(sort_~x#1.base, sort_~x#1.offset + 4 * sort_~i~0#1, 4);call sort_#t~mem5#1 := read~int(sort_~x#1.base, sort_~x#1.offset + 4 * (1 + sort_~i~0#1), 4); 1950#L517 assume !(sort_#t~mem4#1 > sort_#t~mem5#1);havoc sort_#t~mem4#1;havoc sort_#t~mem5#1; 1934#L516-2 sort_#t~post3#1 := sort_~i~0#1;sort_~i~0#1 := 1 + sort_#t~post3#1;havoc sort_#t~post3#1; 1935#L516-3 assume !!(sort_~i~0#1 < sort_~n#1 - sort_~pass~0#1);call sort_#t~mem4#1 := read~int(sort_~x#1.base, sort_~x#1.offset + 4 * sort_~i~0#1, 4);call sort_#t~mem5#1 := read~int(sort_~x#1.base, sort_~x#1.offset + 4 * (1 + sort_~i~0#1), 4); 1944#L517 assume sort_#t~mem4#1 > sort_#t~mem5#1;havoc sort_#t~mem4#1;havoc sort_#t~mem5#1;call sort_#t~mem6#1 := read~int(sort_~x#1.base, sort_~x#1.offset + 4 * sort_~i~0#1, 4);sort_~temp~0#1 := sort_#t~mem6#1;havoc sort_#t~mem6#1;call sort_#t~mem7#1 := read~int(sort_~x#1.base, sort_~x#1.offset + 4 * (1 + sort_~i~0#1), 4);call write~int(sort_#t~mem7#1, sort_~x#1.base, sort_~x#1.offset + 4 * sort_~i~0#1, 4);havoc sort_#t~mem7#1;call write~int(sort_~temp~0#1, sort_~x#1.base, sort_~x#1.offset + 4 * (1 + sort_~i~0#1), 4); 1947#L516-2 sort_#t~post3#1 := sort_~i~0#1;sort_~i~0#1 := 1 + sort_#t~post3#1;havoc sort_#t~post3#1; 1939#L516-3 assume !(sort_~i~0#1 < sort_~n#1 - sort_~pass~0#1); 1940#L515-2 sort_#t~post2#1 := sort_~pass~0#1;sort_~pass~0#1 := 1 + sort_#t~post2#1;havoc sort_#t~post2#1; 1932#L515-3 assume !!(sort_~pass~0#1 < sort_~n#1);sort_~i~0#1 := 0; 1925#L516-3 [2021-12-07 00:24:24,175 INFO L793 eck$LassoCheckResult]: Loop: 1925#L516-3 assume !!(sort_~i~0#1 < sort_~n#1 - sort_~pass~0#1);call sort_#t~mem4#1 := read~int(sort_~x#1.base, sort_~x#1.offset + 4 * sort_~i~0#1, 4);call sort_#t~mem5#1 := read~int(sort_~x#1.base, sort_~x#1.offset + 4 * (1 + sort_~i~0#1), 4); 1926#L517 assume sort_#t~mem4#1 > sort_#t~mem5#1;havoc sort_#t~mem4#1;havoc sort_#t~mem5#1;call sort_#t~mem6#1 := read~int(sort_~x#1.base, sort_~x#1.offset + 4 * sort_~i~0#1, 4);sort_~temp~0#1 := sort_#t~mem6#1;havoc sort_#t~mem6#1;call sort_#t~mem7#1 := read~int(sort_~x#1.base, sort_~x#1.offset + 4 * (1 + sort_~i~0#1), 4);call write~int(sort_#t~mem7#1, sort_~x#1.base, sort_~x#1.offset + 4 * sort_~i~0#1, 4);havoc sort_#t~mem7#1;call write~int(sort_~temp~0#1, sort_~x#1.base, sort_~x#1.offset + 4 * (1 + sort_~i~0#1), 4); 1933#L516-2 sort_#t~post3#1 := sort_~i~0#1;sort_~i~0#1 := 1 + sort_#t~post3#1;havoc sort_#t~post3#1; 1925#L516-3 [2021-12-07 00:24:24,175 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-07 00:24:24,175 INFO L85 PathProgramCache]: Analyzing trace with hash -519847354, now seen corresponding path program 4 times [2021-12-07 00:24:24,176 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-07 00:24:24,176 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1902286297] [2021-12-07 00:24:24,176 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-07 00:24:24,176 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-07 00:24:24,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:24:24,243 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 5 proven. 17 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-07 00:24:24,243 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-07 00:24:24,243 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1902286297] [2021-12-07 00:24:24,243 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1902286297] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-07 00:24:24,243 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1575138064] [2021-12-07 00:24:24,243 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2021-12-07 00:24:24,243 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-07 00:24:24,243 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4fd24422-a763-4b95-b367-c2bd5e1ca139/bin/uautomizer-DrprNOufMa/z3 [2021-12-07 00:24:24,244 INFO L229 MonitoredProcess]: Starting monitored process 46 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4fd24422-a763-4b95-b367-c2bd5e1ca139/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-07 00:24:24,245 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4fd24422-a763-4b95-b367-c2bd5e1ca139/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (46)] Waiting until timeout for monitored process [2021-12-07 00:24:24,285 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-12-07 00:24:24,285 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-12-07 00:24:24,286 INFO L263 TraceCheckSpWp]: Trace formula consists of 138 conjuncts, 12 conjunts are in the unsatisfiable core [2021-12-07 00:24:24,286 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-07 00:24:24,360 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 10 proven. 12 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-07 00:24:24,361 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-12-07 00:24:24,395 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 10 proven. 12 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-07 00:24:24,396 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1575138064] provided 0 perfect and 2 imperfect interpolant sequences [2021-12-07 00:24:24,396 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-12-07 00:24:24,396 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 11, 11] total 18 [2021-12-07 00:24:24,396 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [324409297] [2021-12-07 00:24:24,396 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-12-07 00:24:24,397 INFO L796 eck$LassoCheckResult]: stem already infeasible [2021-12-07 00:24:24,397 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-07 00:24:24,397 INFO L85 PathProgramCache]: Analyzing trace with hash 68618, now seen corresponding path program 6 times [2021-12-07 00:24:24,397 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-07 00:24:24,397 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [843338351] [2021-12-07 00:24:24,397 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-07 00:24:24,397 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-07 00:24:24,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-07 00:24:24,401 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-07 00:24:24,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-07 00:24:24,404 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-07 00:24:24,459 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-07 00:24:24,459 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-12-07 00:24:24,459 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=65, Invalid=241, Unknown=0, NotChecked=0, Total=306 [2021-12-07 00:24:24,460 INFO L87 Difference]: Start difference. First operand 36 states and 45 transitions. cyclomatic complexity: 12 Second operand has 18 states, 18 states have (on average 2.2222222222222223) internal successors, (40), 18 states have internal predecessors, (40), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-07 00:24:24,568 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-07 00:24:24,568 INFO L93 Difference]: Finished difference Result 58 states and 75 transitions. [2021-12-07 00:24:24,568 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-12-07 00:24:24,568 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 58 states and 75 transitions. [2021-12-07 00:24:24,569 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2021-12-07 00:24:24,569 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 58 states to 58 states and 75 transitions. [2021-12-07 00:24:24,569 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 13 [2021-12-07 00:24:24,569 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 13 [2021-12-07 00:24:24,569 INFO L73 IsDeterministic]: Start isDeterministic. Operand 58 states and 75 transitions. [2021-12-07 00:24:24,570 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2021-12-07 00:24:24,570 INFO L681 BuchiCegarLoop]: Abstraction has 58 states and 75 transitions. [2021-12-07 00:24:24,570 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 58 states and 75 transitions. [2021-12-07 00:24:24,571 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 58 to 43. [2021-12-07 00:24:24,572 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 43 states, 43 states have (on average 1.255813953488372) internal successors, (54), 42 states have internal predecessors, (54), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-07 00:24:24,572 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43 states to 43 states and 54 transitions. [2021-12-07 00:24:24,572 INFO L704 BuchiCegarLoop]: Abstraction has 43 states and 54 transitions. [2021-12-07 00:24:24,572 INFO L587 BuchiCegarLoop]: Abstraction has 43 states and 54 transitions. [2021-12-07 00:24:24,572 INFO L425 BuchiCegarLoop]: ======== Iteration 12============ [2021-12-07 00:24:24,572 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 43 states and 54 transitions. [2021-12-07 00:24:24,572 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2021-12-07 00:24:24,572 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-12-07 00:24:24,572 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-12-07 00:24:24,573 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [4, 4, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-07 00:24:24,573 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2021-12-07 00:24:24,573 INFO L791 eck$LassoCheckResult]: Stem: 2182#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier; 2183#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet8#1, main_#t~malloc9#1.base, main_#t~malloc9#1.offset, main_#t~nondet11#1, main_#t~post10#1, main_~i~1#1, main_~array_size~0#1, main_~numbers~0#1.base, main_~numbers~0#1.offset;main_~array_size~0#1 := main_#t~nondet8#1;havoc main_#t~nondet8#1; 2184#L523 assume !(main_~array_size~0#1 < 1 || main_~array_size~0#1 % 4294967296 >= 536870911); 2185#L523-2 call main_#t~malloc9#1.base, main_#t~malloc9#1.offset := #Ultimate.allocOnStack(4 * main_~array_size~0#1);main_~numbers~0#1.base, main_~numbers~0#1.offset := main_#t~malloc9#1.base, main_#t~malloc9#1.offset;main_~i~1#1 := 0; 2188#L528-3 assume !!(main_~i~1#1 < main_~array_size~0#1);call write~int(main_#t~nondet11#1, main_~numbers~0#1.base, main_~numbers~0#1.offset + 4 * main_~i~1#1, 4);havoc main_#t~nondet11#1; 2189#L528-2 main_#t~post10#1 := main_~i~1#1;main_~i~1#1 := 1 + main_#t~post10#1;havoc main_#t~post10#1; 2190#L528-3 assume !!(main_~i~1#1 < main_~array_size~0#1);call write~int(main_#t~nondet11#1, main_~numbers~0#1.base, main_~numbers~0#1.offset + 4 * main_~i~1#1, 4);havoc main_#t~nondet11#1; 2191#L528-2 main_#t~post10#1 := main_~i~1#1;main_~i~1#1 := 1 + main_#t~post10#1;havoc main_#t~post10#1; 2213#L528-3 assume !!(main_~i~1#1 < main_~array_size~0#1);call write~int(main_#t~nondet11#1, main_~numbers~0#1.base, main_~numbers~0#1.offset + 4 * main_~i~1#1, 4);havoc main_#t~nondet11#1; 2212#L528-2 main_#t~post10#1 := main_~i~1#1;main_~i~1#1 := 1 + main_#t~post10#1;havoc main_#t~post10#1; 2210#L528-3 assume !!(main_~i~1#1 < main_~array_size~0#1);call write~int(main_#t~nondet11#1, main_~numbers~0#1.base, main_~numbers~0#1.offset + 4 * main_~i~1#1, 4);havoc main_#t~nondet11#1; 2207#L528-2 main_#t~post10#1 := main_~i~1#1;main_~i~1#1 := 1 + main_#t~post10#1;havoc main_#t~post10#1; 2206#L528-3 assume !(main_~i~1#1 < main_~array_size~0#1); 2186#L528-4 assume { :begin_inline_sort } true;sort_#in~x#1.base, sort_#in~x#1.offset, sort_#in~n#1 := main_~numbers~0#1.base, main_~numbers~0#1.offset, main_~array_size~0#1;havoc sort_#t~mem4#1, sort_#t~mem5#1, sort_#t~mem6#1, sort_#t~mem7#1, sort_~temp~0#1, sort_#t~post3#1, sort_#t~post2#1, sort_~x#1.base, sort_~x#1.offset, sort_~n#1, sort_~pass~0#1, sort_~i~0#1;sort_~x#1.base, sort_~x#1.offset := sort_#in~x#1.base, sort_#in~x#1.offset;sort_~n#1 := sort_#in~n#1;havoc sort_~pass~0#1;havoc sort_~i~0#1;sort_~pass~0#1 := 1; 2187#L515-3 assume !!(sort_~pass~0#1 < sort_~n#1);sort_~i~0#1 := 0; 2198#L516-3 assume !!(sort_~i~0#1 < sort_~n#1 - sort_~pass~0#1);call sort_#t~mem4#1 := read~int(sort_~x#1.base, sort_~x#1.offset + 4 * sort_~i~0#1, 4);call sort_#t~mem5#1 := read~int(sort_~x#1.base, sort_~x#1.offset + 4 * (1 + sort_~i~0#1), 4); 2223#L517 assume !(sort_#t~mem4#1 > sort_#t~mem5#1);havoc sort_#t~mem4#1;havoc sort_#t~mem5#1; 2201#L516-2 sort_#t~post3#1 := sort_~i~0#1;sort_~i~0#1 := 1 + sort_#t~post3#1;havoc sort_#t~post3#1; 2202#L516-3 assume !!(sort_~i~0#1 < sort_~n#1 - sort_~pass~0#1);call sort_#t~mem4#1 := read~int(sort_~x#1.base, sort_~x#1.offset + 4 * sort_~i~0#1, 4);call sort_#t~mem5#1 := read~int(sort_~x#1.base, sort_~x#1.offset + 4 * (1 + sort_~i~0#1), 4); 2224#L517 assume sort_#t~mem4#1 > sort_#t~mem5#1;havoc sort_#t~mem4#1;havoc sort_#t~mem5#1;call sort_#t~mem6#1 := read~int(sort_~x#1.base, sort_~x#1.offset + 4 * sort_~i~0#1, 4);sort_~temp~0#1 := sort_#t~mem6#1;havoc sort_#t~mem6#1;call sort_#t~mem7#1 := read~int(sort_~x#1.base, sort_~x#1.offset + 4 * (1 + sort_~i~0#1), 4);call write~int(sort_#t~mem7#1, sort_~x#1.base, sort_~x#1.offset + 4 * sort_~i~0#1, 4);havoc sort_#t~mem7#1;call write~int(sort_~temp~0#1, sort_~x#1.base, sort_~x#1.offset + 4 * (1 + sort_~i~0#1), 4); 2222#L516-2 sort_#t~post3#1 := sort_~i~0#1;sort_~i~0#1 := 1 + sort_#t~post3#1;havoc sort_#t~post3#1; 2221#L516-3 assume !!(sort_~i~0#1 < sort_~n#1 - sort_~pass~0#1);call sort_#t~mem4#1 := read~int(sort_~x#1.base, sort_~x#1.offset + 4 * sort_~i~0#1, 4);call sort_#t~mem5#1 := read~int(sort_~x#1.base, sort_~x#1.offset + 4 * (1 + sort_~i~0#1), 4); 2217#L517 assume !(sort_#t~mem4#1 > sort_#t~mem5#1);havoc sort_#t~mem4#1;havoc sort_#t~mem5#1; 2219#L516-2 sort_#t~post3#1 := sort_~i~0#1;sort_~i~0#1 := 1 + sort_#t~post3#1;havoc sort_#t~post3#1; 2216#L516-3 assume !(sort_~i~0#1 < sort_~n#1 - sort_~pass~0#1); 2211#L515-2 sort_#t~post2#1 := sort_~pass~0#1;sort_~pass~0#1 := 1 + sort_#t~post2#1;havoc sort_#t~post2#1; 2199#L515-3 assume !!(sort_~pass~0#1 < sort_~n#1);sort_~i~0#1 := 0; 2192#L516-3 [2021-12-07 00:24:24,573 INFO L793 eck$LassoCheckResult]: Loop: 2192#L516-3 assume !!(sort_~i~0#1 < sort_~n#1 - sort_~pass~0#1);call sort_#t~mem4#1 := read~int(sort_~x#1.base, sort_~x#1.offset + 4 * sort_~i~0#1, 4);call sort_#t~mem5#1 := read~int(sort_~x#1.base, sort_~x#1.offset + 4 * (1 + sort_~i~0#1), 4); 2193#L517 assume sort_#t~mem4#1 > sort_#t~mem5#1;havoc sort_#t~mem4#1;havoc sort_#t~mem5#1;call sort_#t~mem6#1 := read~int(sort_~x#1.base, sort_~x#1.offset + 4 * sort_~i~0#1, 4);sort_~temp~0#1 := sort_#t~mem6#1;havoc sort_#t~mem6#1;call sort_#t~mem7#1 := read~int(sort_~x#1.base, sort_~x#1.offset + 4 * (1 + sort_~i~0#1), 4);call write~int(sort_#t~mem7#1, sort_~x#1.base, sort_~x#1.offset + 4 * sort_~i~0#1, 4);havoc sort_#t~mem7#1;call write~int(sort_~temp~0#1, sort_~x#1.base, sort_~x#1.offset + 4 * (1 + sort_~i~0#1), 4); 2200#L516-2 sort_#t~post3#1 := sort_~i~0#1;sort_~i~0#1 := 1 + sort_#t~post3#1;havoc sort_#t~post3#1; 2192#L516-3 [2021-12-07 00:24:24,573 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-07 00:24:24,573 INFO L85 PathProgramCache]: Analyzing trace with hash 931747541, now seen corresponding path program 5 times [2021-12-07 00:24:24,574 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-07 00:24:24,574 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [242331488] [2021-12-07 00:24:24,574 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-07 00:24:24,574 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-07 00:24:24,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-07 00:24:24,593 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-07 00:24:24,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-07 00:24:24,617 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-07 00:24:24,618 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-07 00:24:24,618 INFO L85 PathProgramCache]: Analyzing trace with hash 68618, now seen corresponding path program 7 times [2021-12-07 00:24:24,618 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-07 00:24:24,618 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [626525887] [2021-12-07 00:24:24,618 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-07 00:24:24,618 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-07 00:24:24,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-07 00:24:24,621 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-07 00:24:24,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-07 00:24:24,624 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-07 00:24:24,624 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-07 00:24:24,624 INFO L85 PathProgramCache]: Analyzing trace with hash -682601290, now seen corresponding path program 6 times [2021-12-07 00:24:24,624 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-07 00:24:24,624 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1347548659] [2021-12-07 00:24:24,624 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-07 00:24:24,624 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-07 00:24:24,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-07 00:24:24,641 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-07 00:24:24,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-07 00:24:24,659 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-07 00:24:26,220 INFO L210 LassoAnalysis]: Preferences: [2021-12-07 00:24:26,220 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-12-07 00:24:26,220 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-12-07 00:24:26,220 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-12-07 00:24:26,220 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2021-12-07 00:24:26,220 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-07 00:24:26,220 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-12-07 00:24:26,220 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-12-07 00:24:26,220 INFO L133 ssoRankerPreferences]: Filename of dumped script: java_BubbleSort-alloca-1.i_Iteration12_Lasso [2021-12-07 00:24:26,220 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-12-07 00:24:26,220 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-12-07 00:24:26,223 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 00:24:26,542 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 00:24:26,543 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 00:24:26,544 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 00:24:26,545 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 00:24:26,546 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 00:24:26,547 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 00:24:26,548 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 00:24:26,549 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 00:24:26,550 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 00:24:26,551 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 00:24:26,552 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 00:24:26,553 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 00:24:26,554 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 00:24:26,555 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 00:24:26,557 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 00:24:26,783 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-12-07 00:24:26,784 INFO L490 LassoAnalysis]: Using template 'affine'. [2021-12-07 00:24:26,784 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-07 00:24:26,784 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4fd24422-a763-4b95-b367-c2bd5e1ca139/bin/uautomizer-DrprNOufMa/z3 [2021-12-07 00:24:26,784 INFO L229 MonitoredProcess]: Starting monitored process 47 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4fd24422-a763-4b95-b367-c2bd5e1ca139/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-07 00:24:26,785 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4fd24422-a763-4b95-b367-c2bd5e1ca139/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (47)] Waiting until timeout for monitored process [2021-12-07 00:24:26,785 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 00:24:26,792 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-07 00:24:26,792 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-07 00:24:26,793 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-07 00:24:26,793 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-07 00:24:26,795 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-12-07 00:24:26,795 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-12-07 00:24:26,803 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-07 00:24:26,821 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4fd24422-a763-4b95-b367-c2bd5e1ca139/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (47)] Forceful destruction successful, exit code 0 [2021-12-07 00:24:26,821 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-07 00:24:26,821 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4fd24422-a763-4b95-b367-c2bd5e1ca139/bin/uautomizer-DrprNOufMa/z3 [2021-12-07 00:24:26,822 INFO L229 MonitoredProcess]: Starting monitored process 48 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4fd24422-a763-4b95-b367-c2bd5e1ca139/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-07 00:24:26,822 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4fd24422-a763-4b95-b367-c2bd5e1ca139/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (48)] Waiting until timeout for monitored process [2021-12-07 00:24:26,823 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 00:24:26,830 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-07 00:24:26,830 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-07 00:24:26,830 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-07 00:24:26,830 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-07 00:24:26,834 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-12-07 00:24:26,834 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-12-07 00:24:26,847 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2021-12-07 00:24:26,860 INFO L443 ModelExtractionUtils]: Simplification made 6 calls to the SMT solver. [2021-12-07 00:24:26,860 INFO L444 ModelExtractionUtils]: 13 out of 43 variables were initially zero. Simplification set additionally 26 variables to zero. [2021-12-07 00:24:26,861 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-07 00:24:26,861 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4fd24422-a763-4b95-b367-c2bd5e1ca139/bin/uautomizer-DrprNOufMa/z3 [2021-12-07 00:24:26,861 INFO L229 MonitoredProcess]: Starting monitored process 49 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4fd24422-a763-4b95-b367-c2bd5e1ca139/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-07 00:24:26,862 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4fd24422-a763-4b95-b367-c2bd5e1ca139/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (49)] Waiting until timeout for monitored process [2021-12-07 00:24:26,862 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2021-12-07 00:24:26,869 INFO L438 nArgumentSynthesizer]: Removed 2 redundant supporting invariants from a total of 2. [2021-12-07 00:24:26,870 INFO L513 LassoAnalysis]: Proved termination. [2021-12-07 00:24:26,870 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_sort_~i~0#1, ULTIMATE.start_sort_~n#1, ULTIMATE.start_sort_~pass~0#1) = -1*ULTIMATE.start_sort_~i~0#1 + 1*ULTIMATE.start_sort_~n#1 - 1*ULTIMATE.start_sort_~pass~0#1 Supporting invariants [] [2021-12-07 00:24:26,888 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4fd24422-a763-4b95-b367-c2bd5e1ca139/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (48)] Ended with exit code 0 [2021-12-07 00:24:26,918 INFO L297 tatePredicateManager]: 12 out of 12 supporting invariants were superfluous and have been removed [2021-12-07 00:24:26,924 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-07 00:24:26,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:24:26,940 INFO L263 TraceCheckSpWp]: Trace formula consists of 154 conjuncts, 2 conjunts are in the unsatisfiable core [2021-12-07 00:24:26,941 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-07 00:24:26,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:24:26,966 INFO L263 TraceCheckSpWp]: Trace formula consists of 30 conjuncts, 4 conjunts are in the unsatisfiable core [2021-12-07 00:24:26,966 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-07 00:24:26,976 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 00:24:26,976 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates [2021-12-07 00:24:26,976 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 43 states and 54 transitions. cyclomatic complexity: 14 Second operand has 3 states, 3 states have (on average 6.333333333333333) internal successors, (19), 3 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-07 00:24:26,987 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 43 states and 54 transitions. cyclomatic complexity: 14. Second operand has 3 states, 3 states have (on average 6.333333333333333) internal successors, (19), 3 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 68 states and 90 transitions. Complement of second has 7 states. [2021-12-07 00:24:26,987 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2021-12-07 00:24:26,987 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 6.333333333333333) internal successors, (19), 3 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-07 00:24:26,987 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 15 transitions. [2021-12-07 00:24:26,988 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 15 transitions. Stem has 27 letters. Loop has 3 letters. [2021-12-07 00:24:26,988 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-12-07 00:24:26,988 INFO L634 RefineBuchi]: Bad chosen interpolant automaton: word not accepted [2021-12-07 00:24:26,993 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-07 00:24:27,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:24:27,008 INFO L263 TraceCheckSpWp]: Trace formula consists of 154 conjuncts, 2 conjunts are in the unsatisfiable core [2021-12-07 00:24:27,009 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-07 00:24:27,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:24:27,034 INFO L263 TraceCheckSpWp]: Trace formula consists of 30 conjuncts, 4 conjunts are in the unsatisfiable core [2021-12-07 00:24:27,034 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-07 00:24:27,043 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 00:24:27,044 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and with honda bouncer for loop.1 stem predicates 2 loop predicates [2021-12-07 00:24:27,044 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 43 states and 54 transitions. cyclomatic complexity: 14 Second operand has 3 states, 3 states have (on average 6.333333333333333) internal successors, (19), 3 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-07 00:24:27,053 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 43 states and 54 transitions. cyclomatic complexity: 14. Second operand has 3 states, 3 states have (on average 6.333333333333333) internal successors, (19), 3 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 68 states and 90 transitions. Complement of second has 7 states. [2021-12-07 00:24:27,053 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2021-12-07 00:24:27,053 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 6.333333333333333) internal successors, (19), 3 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-07 00:24:27,053 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 15 transitions. [2021-12-07 00:24:27,053 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 15 transitions. Stem has 27 letters. Loop has 3 letters. [2021-12-07 00:24:27,053 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-12-07 00:24:27,053 INFO L634 RefineBuchi]: Bad chosen interpolant automaton: word not accepted [2021-12-07 00:24:27,059 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-07 00:24:27,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:24:27,074 INFO L263 TraceCheckSpWp]: Trace formula consists of 154 conjuncts, 2 conjunts are in the unsatisfiable core [2021-12-07 00:24:27,074 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-07 00:24:27,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:24:27,100 INFO L263 TraceCheckSpWp]: Trace formula consists of 30 conjuncts, 4 conjunts are in the unsatisfiable core [2021-12-07 00:24:27,100 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-07 00:24:27,109 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 00:24:27,109 INFO L152 lantAutomatonBouncer]: Defining Buchi interpolant automaton with scrooge nondeterminism in stemwith honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates [2021-12-07 00:24:27,109 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 43 states and 54 transitions. cyclomatic complexity: 14 Second operand has 3 states, 3 states have (on average 6.333333333333333) internal successors, (19), 3 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-07 00:24:27,119 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 43 states and 54 transitions. cyclomatic complexity: 14. Second operand has 3 states, 3 states have (on average 6.333333333333333) internal successors, (19), 3 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 62 states and 84 transitions. Complement of second has 6 states. [2021-12-07 00:24:27,119 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2021-12-07 00:24:27,119 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 6.333333333333333) internal successors, (19), 3 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-07 00:24:27,120 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 22 transitions. [2021-12-07 00:24:27,120 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 22 transitions. Stem has 27 letters. Loop has 3 letters. [2021-12-07 00:24:27,120 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-12-07 00:24:27,120 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 22 transitions. Stem has 30 letters. Loop has 3 letters. [2021-12-07 00:24:27,120 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-12-07 00:24:27,120 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 22 transitions. Stem has 27 letters. Loop has 6 letters. [2021-12-07 00:24:27,120 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-12-07 00:24:27,121 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 62 states and 84 transitions. [2021-12-07 00:24:27,121 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2021-12-07 00:24:27,121 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 62 states to 0 states and 0 transitions. [2021-12-07 00:24:27,121 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2021-12-07 00:24:27,121 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2021-12-07 00:24:27,121 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2021-12-07 00:24:27,121 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-12-07 00:24:27,121 INFO L681 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-12-07 00:24:27,121 INFO L704 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-12-07 00:24:27,121 INFO L587 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-12-07 00:24:27,121 INFO L425 BuchiCegarLoop]: ======== Iteration 13============ [2021-12-07 00:24:27,122 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2021-12-07 00:24:27,122 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2021-12-07 00:24:27,122 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2021-12-07 00:24:27,126 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 07.12 12:24:27 BoogieIcfgContainer [2021-12-07 00:24:27,126 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2021-12-07 00:24:27,126 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-12-07 00:24:27,126 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-12-07 00:24:27,126 INFO L275 PluginConnector]: Witness Printer initialized [2021-12-07 00:24:27,127 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 12:24:15" (3/4) ... [2021-12-07 00:24:27,128 INFO L140 WitnessPrinter]: No result that supports witness generation found [2021-12-07 00:24:27,128 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-12-07 00:24:27,129 INFO L158 Benchmark]: Toolchain (without parser) took 11879.34ms. Allocated memory was 94.4MB in the beginning and 136.3MB in the end (delta: 41.9MB). Free memory was 59.0MB in the beginning and 50.7MB in the end (delta: 8.3MB). Peak memory consumption was 50.2MB. Max. memory is 16.1GB. [2021-12-07 00:24:27,129 INFO L158 Benchmark]: CDTParser took 0.13ms. Allocated memory is still 94.4MB. Free memory is still 76.3MB. There was no memory consumed. Max. memory is 16.1GB. [2021-12-07 00:24:27,129 INFO L158 Benchmark]: CACSL2BoogieTranslator took 284.65ms. Allocated memory is still 94.4MB. Free memory was 58.7MB in the beginning and 65.9MB in the end (delta: -7.2MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2021-12-07 00:24:27,129 INFO L158 Benchmark]: Boogie Procedure Inliner took 39.45ms. Allocated memory is still 94.4MB. Free memory was 65.9MB in the beginning and 64.2MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-12-07 00:24:27,130 INFO L158 Benchmark]: Boogie Preprocessor took 24.72ms. Allocated memory is still 94.4MB. Free memory was 64.2MB in the beginning and 62.9MB in the end (delta: 1.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-12-07 00:24:27,130 INFO L158 Benchmark]: RCFGBuilder took 246.68ms. Allocated memory is still 94.4MB. Free memory was 62.9MB in the beginning and 52.4MB in the end (delta: 10.5MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2021-12-07 00:24:27,130 INFO L158 Benchmark]: BuchiAutomizer took 11277.17ms. Allocated memory was 94.4MB in the beginning and 136.3MB in the end (delta: 41.9MB). Free memory was 52.4MB in the beginning and 50.7MB in the end (delta: 1.8MB). Peak memory consumption was 44.1MB. Max. memory is 16.1GB. [2021-12-07 00:24:27,130 INFO L158 Benchmark]: Witness Printer took 2.30ms. Allocated memory is still 136.3MB. Free memory is still 50.7MB. There was no memory consumed. Max. memory is 16.1GB. [2021-12-07 00:24:27,132 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 94.4MB. Free memory is still 76.3MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 284.65ms. Allocated memory is still 94.4MB. Free memory was 58.7MB in the beginning and 65.9MB in the end (delta: -7.2MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 39.45ms. Allocated memory is still 94.4MB. Free memory was 65.9MB in the beginning and 64.2MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 24.72ms. Allocated memory is still 94.4MB. Free memory was 64.2MB in the beginning and 62.9MB in the end (delta: 1.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 246.68ms. Allocated memory is still 94.4MB. Free memory was 62.9MB in the beginning and 52.4MB in the end (delta: 10.5MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * BuchiAutomizer took 11277.17ms. Allocated memory was 94.4MB in the beginning and 136.3MB in the end (delta: 41.9MB). Free memory was 52.4MB in the beginning and 50.7MB in the end (delta: 1.8MB). Peak memory consumption was 44.1MB. Max. memory is 16.1GB. * Witness Printer took 2.30ms. Allocated memory is still 136.3MB. Free memory is still 50.7MB. There was no memory consumed. 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 12 terminating modules (7 trivial, 3 deterministic, 2 nondeterministic). One deterministic module has affine ranking function unknown-#length-unknown[__builtin_alloca (array_size * sizeof(int))] + -2 * i and consists of 6 locations. One deterministic module has affine ranking function -1 * pass + n and consists of 3 locations. One deterministic module has affine ranking function -1 * pass + n + -1 * i and consists of 4 locations. One nondeterministic module has affine ranking function 5 + -2 * i + -2 * pass and consists of 11 locations. One nondeterministic module has affine ranking function -1 * pass + n + -1 * i and consists of 4 locations. 7 modules have a trivial ranking function, the largest among these consists of 21 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 11.2s and 13 iterations. TraceHistogramMax:4. Analysis of lassos took 9.1s. Construction of modules took 0.3s. Büchi inclusion checks took 1.5s. Highest rank in rank-based complementation 3. Minimization of det autom 5. Minimization of nondet autom 7. Automata minimization 0.0s AutomataMinimizationTime, 11 MinimizatonAttempts, 57 StatesRemovedByMinimization, 9 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 43 states and ocurred in iteration 11. Nontrivial modules had stage [3, 0, 2, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 1/1 HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 489 SdHoareTripleChecker+Valid, 0.5s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 484 mSDsluCounter, 478 SdHoareTripleChecker+Invalid, 0.4s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 330 mSDsCounter, 155 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 863 IncrementalHoareTripleChecker+Invalid, 1018 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 155 mSolverCounterUnsat, 148 mSDtfsCounter, 863 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown LassoAnalysisResults: nont0 unkn0 SFLI0 SFLT0 conc2 concLT0 SILN0 SILU4 SILI1 SILT0 lasso5 LassoPreprocessingBenchmarks: Lassos: inital300 mio100 ax108 hnf99 lsp89 ukn61 mio100 lsp57 div113 bol100 ite100 ukn100 eq172 hnf86 smp97 dnf100 smp100 tf100 neg100 sie102 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 14ms VariablesStem: 1 VariablesLoop: 0 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 2 MotzkinApplications: 6 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 0 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 0 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.0s - TerminationAnalysisResult: Termination proven Buchi Automizer proved that your program is terminating RESULT: Ultimate proved your program to be correct! [2021-12-07 00:24:27,155 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4fd24422-a763-4b95-b367-c2bd5e1ca139/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (49)] Forceful destruction successful, exit code 0 [2021-12-07 00:24:27,391 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4fd24422-a763-4b95-b367-c2bd5e1ca139/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (46)] Ended with exit code 0 [2021-12-07 00:24:27,592 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4fd24422-a763-4b95-b367-c2bd5e1ca139/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (30)] Ended with exit code 0 [2021-12-07 00:24:27,764 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4fd24422-a763-4b95-b367-c2bd5e1ca139/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (29)] Ended with exit code 0 [2021-12-07 00:24:27,964 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4fd24422-a763-4b95-b367-c2bd5e1ca139/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (28)] Forceful destruction successful, exit code 0 [2021-12-07 00:24:28,194 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4fd24422-a763-4b95-b367-c2bd5e1ca139/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Ended with exit code 0 [2021-12-07 00:24:28,396 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4fd24422-a763-4b95-b367-c2bd5e1ca139/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 Result: TRUE