./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/list-ext-properties/test-0232_1-1.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 9ad7fb26 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_213b1af9-6030-4d19-89ee-25ebe2f01c5b/bin/uautomizer-tBqnrhUYjU/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_213b1af9-6030-4d19-89ee-25ebe2f01c5b/bin/uautomizer-tBqnrhUYjU/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_213b1af9-6030-4d19-89ee-25ebe2f01c5b/bin/uautomizer-tBqnrhUYjU/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_213b1af9-6030-4d19-89ee-25ebe2f01c5b/bin/uautomizer-tBqnrhUYjU/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/list-ext-properties/test-0232_1-1.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_213b1af9-6030-4d19-89ee-25ebe2f01c5b/bin/uautomizer-tBqnrhUYjU/config/svcomp-Termination-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_213b1af9-6030-4d19-89ee-25ebe2f01c5b/bin/uautomizer-tBqnrhUYjU --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 b36390e4ace21fb538f0c1df6f562bcf2825b5901fb45d9987e6242615034592 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-9ad7fb2 [2021-11-02 22:09:53,503 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-02 22:09:53,505 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-02 22:09:53,554 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-02 22:09:53,554 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-02 22:09:53,558 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-02 22:09:53,560 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-02 22:09:53,564 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-02 22:09:53,567 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-02 22:09:53,572 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-02 22:09:53,573 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-02 22:09:53,575 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-02 22:09:53,576 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-02 22:09:53,578 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-02 22:09:53,581 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-02 22:09:53,585 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-02 22:09:53,587 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-02 22:09:53,588 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-02 22:09:53,590 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-02 22:09:53,599 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-02 22:09:53,601 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-02 22:09:53,603 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-02 22:09:53,606 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-02 22:09:53,608 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-02 22:09:53,617 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-02 22:09:53,617 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-02 22:09:53,618 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-02 22:09:53,620 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-02 22:09:53,620 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-02 22:09:53,622 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-02 22:09:53,623 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-02 22:09:53,624 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-02 22:09:53,626 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-02 22:09:53,627 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-02 22:09:53,629 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-02 22:09:53,629 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-02 22:09:53,630 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-02 22:09:53,630 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-02 22:09:53,630 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-02 22:09:53,631 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-02 22:09:53,632 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-02 22:09:53,633 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_213b1af9-6030-4d19-89ee-25ebe2f01c5b/bin/uautomizer-tBqnrhUYjU/config/svcomp-Termination-32bit-Automizer_Default.epf [2021-11-02 22:09:53,680 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-02 22:09:53,682 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-02 22:09:53,683 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-02 22:09:53,683 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-02 22:09:53,685 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-02 22:09:53,686 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-02 22:09:53,686 INFO L138 SettingsManager]: * Use SBE=true [2021-11-02 22:09:53,686 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2021-11-02 22:09:53,686 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2021-11-02 22:09:53,687 INFO L138 SettingsManager]: * Use old map elimination=false [2021-11-02 22:09:53,688 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2021-11-02 22:09:53,688 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2021-11-02 22:09:53,688 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2021-11-02 22:09:53,689 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-02 22:09:53,689 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-02 22:09:53,689 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-11-02 22:09:53,689 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-02 22:09:53,689 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-02 22:09:53,690 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-02 22:09:53,690 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2021-11-02 22:09:53,690 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2021-11-02 22:09:53,690 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2021-11-02 22:09:53,691 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-02 22:09:53,691 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-02 22:09:53,691 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2021-11-02 22:09:53,691 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-02 22:09:53,693 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2021-11-02 22:09:53,693 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-02 22:09:53,693 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-02 22:09:53,694 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-02 22:09:53,694 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-11-02 22:09:53,694 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-02 22:09:53,696 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2021-11-02 22:09:53,696 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_213b1af9-6030-4d19-89ee-25ebe2f01c5b/bin/uautomizer-tBqnrhUYjU/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_213b1af9-6030-4d19-89ee-25ebe2f01c5b/bin/uautomizer-tBqnrhUYjU Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> b36390e4ace21fb538f0c1df6f562bcf2825b5901fb45d9987e6242615034592 [2021-11-02 22:09:53,950 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-02 22:09:53,971 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-02 22:09:53,974 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-02 22:09:53,975 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-02 22:09:53,976 INFO L275 PluginConnector]: CDTParser initialized [2021-11-02 22:09:53,977 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_213b1af9-6030-4d19-89ee-25ebe2f01c5b/bin/uautomizer-tBqnrhUYjU/../../sv-benchmarks/c/list-ext-properties/test-0232_1-1.i [2021-11-02 22:09:54,049 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_213b1af9-6030-4d19-89ee-25ebe2f01c5b/bin/uautomizer-tBqnrhUYjU/data/13ca00105/cf7fe718907b48fb9fa2efddab2dab04/FLAGaa073e61d [2021-11-02 22:09:54,512 INFO L306 CDTParser]: Found 1 translation units. [2021-11-02 22:09:54,530 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_213b1af9-6030-4d19-89ee-25ebe2f01c5b/sv-benchmarks/c/list-ext-properties/test-0232_1-1.i [2021-11-02 22:09:54,554 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_213b1af9-6030-4d19-89ee-25ebe2f01c5b/bin/uautomizer-tBqnrhUYjU/data/13ca00105/cf7fe718907b48fb9fa2efddab2dab04/FLAGaa073e61d [2021-11-02 22:09:54,869 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_213b1af9-6030-4d19-89ee-25ebe2f01c5b/bin/uautomizer-tBqnrhUYjU/data/13ca00105/cf7fe718907b48fb9fa2efddab2dab04 [2021-11-02 22:09:54,871 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-02 22:09:54,872 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-02 22:09:54,874 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-02 22:09:54,874 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-02 22:09:54,890 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-02 22:09:54,891 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.11 10:09:54" (1/1) ... [2021-11-02 22:09:54,892 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5060d81f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 10:09:54, skipping insertion in model container [2021-11-02 22:09:54,895 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.11 10:09:54" (1/1) ... [2021-11-02 22:09:54,902 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-02 22:09:54,960 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-02 22:09:55,235 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-02 22:09:55,244 INFO L203 MainTranslator]: Completed pre-run [2021-11-02 22:09:55,283 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-02 22:09:55,314 INFO L208 MainTranslator]: Completed translation [2021-11-02 22:09:55,315 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 10:09:55 WrapperNode [2021-11-02 22:09:55,315 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-02 22:09:55,316 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-02 22:09:55,316 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-02 22:09:55,317 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-02 22:09:55,324 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 10:09:55" (1/1) ... [2021-11-02 22:09:55,342 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 10:09:55" (1/1) ... [2021-11-02 22:09:55,365 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-02 22:09:55,366 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-02 22:09:55,366 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-02 22:09:55,366 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-02 22:09:55,374 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 10:09:55" (1/1) ... [2021-11-02 22:09:55,374 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 10:09:55" (1/1) ... [2021-11-02 22:09:55,378 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 10:09:55" (1/1) ... [2021-11-02 22:09:55,378 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 10:09:55" (1/1) ... [2021-11-02 22:09:55,386 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 10:09:55" (1/1) ... [2021-11-02 22:09:55,390 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 10:09:55" (1/1) ... [2021-11-02 22:09:55,392 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 10:09:55" (1/1) ... [2021-11-02 22:09:55,394 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-02 22:09:55,395 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-02 22:09:55,396 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-02 22:09:55,396 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-02 22:09:55,397 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 10:09:55" (1/1) ... [2021-11-02 22:09:55,404 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-02 22:09:55,415 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_213b1af9-6030-4d19-89ee-25ebe2f01c5b/bin/uautomizer-tBqnrhUYjU/z3 [2021-11-02 22:09:55,427 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_213b1af9-6030-4d19-89ee-25ebe2f01c5b/bin/uautomizer-tBqnrhUYjU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-02 22:09:55,446 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_213b1af9-6030-4d19-89ee-25ebe2f01c5b/bin/uautomizer-tBqnrhUYjU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2021-11-02 22:09:55,475 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-02 22:09:55,476 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-02 22:09:55,476 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-02 22:09:55,476 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-02 22:09:55,476 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-02 22:09:55,476 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-11-02 22:09:55,477 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-02 22:09:55,477 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-02 22:09:55,477 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-02 22:09:55,766 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-02 22:09:55,766 INFO L299 CfgBuilder]: Removed 8 assume(true) statements. [2021-11-02 22:09:55,768 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.11 10:09:55 BoogieIcfgContainer [2021-11-02 22:09:55,768 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-02 22:09:55,769 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2021-11-02 22:09:55,769 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2021-11-02 22:09:55,772 INFO L275 PluginConnector]: BuchiAutomizer initialized [2021-11-02 22:09:55,773 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-11-02 22:09:55,773 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 02.11 10:09:54" (1/3) ... [2021-11-02 22:09:55,775 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@7704bf4b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 02.11 10:09:55, skipping insertion in model container [2021-11-02 22:09:55,775 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-11-02 22:09:55,775 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 10:09:55" (2/3) ... [2021-11-02 22:09:55,776 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@7704bf4b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 02.11 10:09:55, skipping insertion in model container [2021-11-02 22:09:55,776 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-11-02 22:09:55,776 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.11 10:09:55" (3/3) ... [2021-11-02 22:09:55,777 INFO L389 chiAutomizerObserver]: Analyzing ICFG test-0232_1-1.i [2021-11-02 22:09:55,820 INFO L359 BuchiCegarLoop]: Interprodecural is true [2021-11-02 22:09:55,820 INFO L360 BuchiCegarLoop]: Hoare is false [2021-11-02 22:09:55,820 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2021-11-02 22:09:55,820 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2021-11-02 22:09:55,821 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-11-02 22:09:55,821 INFO L364 BuchiCegarLoop]: Difference is false [2021-11-02 22:09:55,821 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-11-02 22:09:55,821 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2021-11-02 22:09:55,836 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 15 states, 14 states have (on average 1.5) internal successors, (21), 14 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 22:09:55,854 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 6 [2021-11-02 22:09:55,854 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-11-02 22:09:55,854 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-11-02 22:09:55,860 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1] [2021-11-02 22:09:55,860 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1] [2021-11-02 22:09:55,860 INFO L425 BuchiCegarLoop]: ======== Iteration 1============ [2021-11-02 22:09:55,861 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 15 states, 14 states have (on average 1.5) internal successors, (21), 14 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 22:09:55,862 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 6 [2021-11-02 22:09:55,862 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-11-02 22:09:55,863 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-11-02 22:09:55,863 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1] [2021-11-02 22:09:55,863 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1] [2021-11-02 22:09:55,870 INFO L791 eck$LassoCheckResult]: Stem: 4#ULTIMATE.startENTRYtrue #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string0.base, #t~string0.offset := #Ultimate.allocOnStack(2);call write~init~int(48, #t~string0.base, #t~string0.offset, 1);call write~init~int(0, #t~string0.base, 1 + #t~string0.offset, 1);call #t~string1.base, #t~string1.offset := #Ultimate.allocOnStack(16);~c~0 := 0; 9#L-1true havoc main_#res;havoc main_#t~post14, main_#t~nondet13, main_#t~mem15.base, main_#t~mem15.offset, main_#t~mem16.base, main_#t~mem16.offset, main_#t~mem17.base, main_#t~mem17.offset, main_#t~mem18.base, main_#t~mem18.offset, main_#t~mem19.base, main_#t~mem19.offset, main_#t~post20, main_~next~0.base, main_~next~0.offset, main_#t~mem21.base, main_#t~mem21.offset, main_#t~mem22.base, main_#t~mem22.offset, main_#t~mem23.base, main_#t~mem23.offset, main_#t~post24, main_~next~1.base, main_~next~1.offset, main_~#list~0.base, main_~#list~0.offset, main_~length~0;call main_~#list~0.base, main_~#list~0.offset := #Ultimate.allocOnStack(4);call write~init~$Pointer$(0, 0, main_~#list~0.base, main_~#list~0.offset, 4);main_~length~0 := 0; 16#L543-3true [2021-11-02 22:09:55,870 INFO L793 eck$LassoCheckResult]: Loop: 16#L543-3true append_#in~plist.base, append_#in~plist.offset := main_~#list~0.base, main_~#list~0.offset;havoc append_#t~post5, append_#t~malloc6.base, append_#t~malloc6.offset, append_#t~mem7.base, append_#t~mem7.offset, append_#t~mem8.base, append_#t~mem8.offset, append_#t~ite12.base, append_#t~ite12.offset, append_#t~mem9.base, append_#t~mem9.offset, append_#t~mem10.base, append_#t~mem10.offset, append_#t~malloc11.base, append_#t~malloc11.offset, append_~plist.base, append_~plist.offset, append_~item~0.base, append_~item~0.offset;append_~plist.base, append_~plist.offset := append_#in~plist.base, append_#in~plist.offset;append_#t~post5 := ~c~0;~c~0 := 1 + append_#t~post5;havoc append_#t~post5;call append_#t~malloc6.base, append_#t~malloc6.offset := #Ultimate.allocOnHeap(8);append_~item~0.base, append_~item~0.offset := append_#t~malloc6.base, append_#t~malloc6.offset;havoc append_#t~malloc6.base, append_#t~malloc6.offset;call append_#t~mem7.base, append_#t~mem7.offset := read~$Pointer$(append_~plist.base, append_~plist.offset, 4);call write~$Pointer$(append_#t~mem7.base, append_#t~mem7.offset, append_~item~0.base, append_~item~0.offset, 4);havoc append_#t~mem7.base, append_#t~mem7.offset;call append_#t~mem8.base, append_#t~mem8.offset := read~$Pointer$(append_~item~0.base, append_~item~0.offset, 4); 5#L534true assume append_#t~mem8.base != 0 || append_#t~mem8.offset != 0;call append_#t~mem9.base, append_#t~mem9.offset := read~$Pointer$(append_~item~0.base, append_~item~0.offset, 4);call append_#t~mem10.base, append_#t~mem10.offset := read~$Pointer$(append_#t~mem9.base, 4 + append_#t~mem9.offset, 4);append_#t~ite12.base, append_#t~ite12.offset := append_#t~mem10.base, append_#t~mem10.offset; 13#L534-2true call write~$Pointer$(append_#t~ite12.base, append_#t~ite12.offset, append_~item~0.base, 4 + append_~item~0.offset, 4);havoc append_#t~mem8.base, append_#t~mem8.offset;havoc append_#t~ite12.base, append_#t~ite12.offset;havoc append_#t~mem9.base, append_#t~mem9.offset;havoc append_#t~mem10.base, append_#t~mem10.offset;havoc append_#t~malloc11.base, append_#t~malloc11.offset;call write~$Pointer$(append_~item~0.base, append_~item~0.offset, append_~plist.base, append_~plist.offset, 4); 8#L529true main_#t~post14 := main_~length~0;main_~length~0 := 1 + main_#t~post14;havoc main_#t~post14; 11#L543-1true assume !!(0 != main_#t~nondet13 && ~c~0 < 20);havoc main_#t~nondet13; 16#L543-3true [2021-11-02 22:09:55,876 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-02 22:09:55,876 INFO L85 PathProgramCache]: Analyzing trace with hash 963, now seen corresponding path program 1 times [2021-11-02 22:09:55,885 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-02 22:09:55,886 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [529752846] [2021-11-02 22:09:55,886 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-02 22:09:55,887 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-02 22:09:56,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-02 22:09:56,011 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-02 22:09:56,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-02 22:09:56,089 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-11-02 22:09:56,096 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-02 22:09:56,096 INFO L85 PathProgramCache]: Analyzing trace with hash 34451375, now seen corresponding path program 1 times [2021-11-02 22:09:56,096 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-02 22:09:56,097 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [995298640] [2021-11-02 22:09:56,097 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-02 22:09:56,098 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-02 22:09:56,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-02 22:09:56,165 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-02 22:09:56,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-02 22:09:56,221 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-11-02 22:09:56,223 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-02 22:09:56,223 INFO L85 PathProgramCache]: Analyzing trace with hash 1805890861, now seen corresponding path program 1 times [2021-11-02 22:09:56,223 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-02 22:09:56,223 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [712409659] [2021-11-02 22:09:56,223 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-02 22:09:56,224 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-02 22:09:56,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-02 22:09:56,434 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-02 22:09:56,435 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-02 22:09:56,435 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [712409659] [2021-11-02 22:09:56,438 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [712409659] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-02 22:09:56,438 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-02 22:09:56,438 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-02 22:09:56,439 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1835326971] [2021-11-02 22:09:58,662 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-02 22:09:58,676 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-02 22:09:58,678 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-02 22:09:58,680 INFO L87 Difference]: Start difference. First operand has 15 states, 14 states have (on average 1.5) internal successors, (21), 14 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 4 states, 4 states have (on average 1.75) internal successors, (7), 4 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 22:09:58,764 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-02 22:09:58,764 INFO L93 Difference]: Finished difference Result 19 states and 23 transitions. [2021-11-02 22:09:58,764 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-02 22:09:58,766 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 19 states and 23 transitions. [2021-11-02 22:09:58,768 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 7 [2021-11-02 22:09:58,771 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 19 states to 15 states and 19 transitions. [2021-11-02 22:09:58,772 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 15 [2021-11-02 22:09:58,772 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 15 [2021-11-02 22:09:58,773 INFO L73 IsDeterministic]: Start isDeterministic. Operand 15 states and 19 transitions. [2021-11-02 22:09:58,773 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-11-02 22:09:58,773 INFO L681 BuchiCegarLoop]: Abstraction has 15 states and 19 transitions. [2021-11-02 22:09:58,804 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15 states and 19 transitions. [2021-11-02 22:09:58,813 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15 to 13. [2021-11-02 22:09:58,814 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13 states, 13 states have (on average 1.3076923076923077) internal successors, (17), 12 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 22:09:58,815 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 17 transitions. [2021-11-02 22:09:58,816 INFO L704 BuchiCegarLoop]: Abstraction has 13 states and 17 transitions. [2021-11-02 22:09:58,816 INFO L587 BuchiCegarLoop]: Abstraction has 13 states and 17 transitions. [2021-11-02 22:09:58,817 INFO L425 BuchiCegarLoop]: ======== Iteration 2============ [2021-11-02 22:09:58,817 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 13 states and 17 transitions. [2021-11-02 22:09:58,820 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 6 [2021-11-02 22:09:58,820 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-11-02 22:09:58,820 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-11-02 22:09:58,821 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1] [2021-11-02 22:09:58,821 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1] [2021-11-02 22:09:58,821 INFO L791 eck$LassoCheckResult]: Stem: 50#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string0.base, #t~string0.offset := #Ultimate.allocOnStack(2);call write~init~int(48, #t~string0.base, #t~string0.offset, 1);call write~init~int(0, #t~string0.base, 1 + #t~string0.offset, 1);call #t~string1.base, #t~string1.offset := #Ultimate.allocOnStack(16);~c~0 := 0; 51#L-1 havoc main_#res;havoc main_#t~post14, main_#t~nondet13, main_#t~mem15.base, main_#t~mem15.offset, main_#t~mem16.base, main_#t~mem16.offset, main_#t~mem17.base, main_#t~mem17.offset, main_#t~mem18.base, main_#t~mem18.offset, main_#t~mem19.base, main_#t~mem19.offset, main_#t~post20, main_~next~0.base, main_~next~0.offset, main_#t~mem21.base, main_#t~mem21.offset, main_#t~mem22.base, main_#t~mem22.offset, main_#t~mem23.base, main_#t~mem23.offset, main_#t~post24, main_~next~1.base, main_~next~1.offset, main_~#list~0.base, main_~#list~0.offset, main_~length~0;call main_~#list~0.base, main_~#list~0.offset := #Ultimate.allocOnStack(4);call write~init~$Pointer$(0, 0, main_~#list~0.base, main_~#list~0.offset, 4);main_~length~0 := 0; 57#L543-3 append_#in~plist.base, append_#in~plist.offset := main_~#list~0.base, main_~#list~0.offset;havoc append_#t~post5, append_#t~malloc6.base, append_#t~malloc6.offset, append_#t~mem7.base, append_#t~mem7.offset, append_#t~mem8.base, append_#t~mem8.offset, append_#t~ite12.base, append_#t~ite12.offset, append_#t~mem9.base, append_#t~mem9.offset, append_#t~mem10.base, append_#t~mem10.offset, append_#t~malloc11.base, append_#t~malloc11.offset, append_~plist.base, append_~plist.offset, append_~item~0.base, append_~item~0.offset;append_~plist.base, append_~plist.offset := append_#in~plist.base, append_#in~plist.offset;append_#t~post5 := ~c~0;~c~0 := 1 + append_#t~post5;havoc append_#t~post5;call append_#t~malloc6.base, append_#t~malloc6.offset := #Ultimate.allocOnHeap(8);append_~item~0.base, append_~item~0.offset := append_#t~malloc6.base, append_#t~malloc6.offset;havoc append_#t~malloc6.base, append_#t~malloc6.offset;call append_#t~mem7.base, append_#t~mem7.offset := read~$Pointer$(append_~plist.base, append_~plist.offset, 4);call write~$Pointer$(append_#t~mem7.base, append_#t~mem7.offset, append_~item~0.base, append_~item~0.offset, 4);havoc append_#t~mem7.base, append_#t~mem7.offset;call append_#t~mem8.base, append_#t~mem8.offset := read~$Pointer$(append_~item~0.base, append_~item~0.offset, 4); 52#L534 assume !(append_#t~mem8.base != 0 || append_#t~mem8.offset != 0);call append_#t~malloc11.base, append_#t~malloc11.offset := #Ultimate.allocOnHeap(8);append_#t~ite12.base, append_#t~ite12.offset := append_#t~malloc11.base, append_#t~malloc11.offset; 48#L534-2 [2021-11-02 22:09:58,822 INFO L793 eck$LassoCheckResult]: Loop: 48#L534-2 call write~$Pointer$(append_#t~ite12.base, append_#t~ite12.offset, append_~item~0.base, 4 + append_~item~0.offset, 4);havoc append_#t~mem8.base, append_#t~mem8.offset;havoc append_#t~ite12.base, append_#t~ite12.offset;havoc append_#t~mem9.base, append_#t~mem9.offset;havoc append_#t~mem10.base, append_#t~mem10.offset;havoc append_#t~malloc11.base, append_#t~malloc11.offset;call write~$Pointer$(append_~item~0.base, append_~item~0.offset, append_~plist.base, append_~plist.offset, 4); 49#L529 main_#t~post14 := main_~length~0;main_~length~0 := 1 + main_#t~post14;havoc main_#t~post14; 55#L543-1 assume !!(0 != main_#t~nondet13 && ~c~0 < 20);havoc main_#t~nondet13; 59#L543-3 append_#in~plist.base, append_#in~plist.offset := main_~#list~0.base, main_~#list~0.offset;havoc append_#t~post5, append_#t~malloc6.base, append_#t~malloc6.offset, append_#t~mem7.base, append_#t~mem7.offset, append_#t~mem8.base, append_#t~mem8.offset, append_#t~ite12.base, append_#t~ite12.offset, append_#t~mem9.base, append_#t~mem9.offset, append_#t~mem10.base, append_#t~mem10.offset, append_#t~malloc11.base, append_#t~malloc11.offset, append_~plist.base, append_~plist.offset, append_~item~0.base, append_~item~0.offset;append_~plist.base, append_~plist.offset := append_#in~plist.base, append_#in~plist.offset;append_#t~post5 := ~c~0;~c~0 := 1 + append_#t~post5;havoc append_#t~post5;call append_#t~malloc6.base, append_#t~malloc6.offset := #Ultimate.allocOnHeap(8);append_~item~0.base, append_~item~0.offset := append_#t~malloc6.base, append_#t~malloc6.offset;havoc append_#t~malloc6.base, append_#t~malloc6.offset;call append_#t~mem7.base, append_#t~mem7.offset := read~$Pointer$(append_~plist.base, append_~plist.offset, 4);call write~$Pointer$(append_#t~mem7.base, append_#t~mem7.offset, append_~item~0.base, append_~item~0.offset, 4);havoc append_#t~mem7.base, append_#t~mem7.offset;call append_#t~mem8.base, append_#t~mem8.offset := read~$Pointer$(append_~item~0.base, append_~item~0.offset, 4); 60#L534 assume append_#t~mem8.base != 0 || append_#t~mem8.offset != 0;call append_#t~mem9.base, append_#t~mem9.offset := read~$Pointer$(append_~item~0.base, append_~item~0.offset, 4);call append_#t~mem10.base, append_#t~mem10.offset := read~$Pointer$(append_#t~mem9.base, 4 + append_#t~mem9.offset, 4);append_#t~ite12.base, append_#t~ite12.offset := append_#t~mem10.base, append_#t~mem10.offset; 48#L534-2 [2021-11-02 22:09:58,822 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-02 22:09:58,823 INFO L85 PathProgramCache]: Analyzing trace with hash 925640, now seen corresponding path program 1 times [2021-11-02 22:09:58,823 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-02 22:09:58,823 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [930339733] [2021-11-02 22:09:58,823 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-02 22:09:58,824 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-02 22:09:58,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-02 22:09:58,846 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-02 22:09:58,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-02 22:09:58,881 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-11-02 22:09:58,882 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-02 22:09:58,882 INFO L85 PathProgramCache]: Analyzing trace with hash 41102165, now seen corresponding path program 2 times [2021-11-02 22:09:58,882 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-02 22:09:58,882 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1384477961] [2021-11-02 22:09:58,882 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-02 22:09:58,883 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-02 22:09:58,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-02 22:09:58,899 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-02 22:09:58,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-02 22:09:58,932 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-11-02 22:09:58,933 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-02 22:09:58,933 INFO L85 PathProgramCache]: Analyzing trace with hash 351588334, now seen corresponding path program 1 times [2021-11-02 22:09:58,933 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-02 22:09:58,933 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2143850636] [2021-11-02 22:09:58,933 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-02 22:09:58,934 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-02 22:09:59,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-02 22:09:59,035 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-02 22:09:59,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-02 22:09:59,117 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-11-02 22:10:02,177 INFO L210 LassoAnalysis]: Preferences: [2021-11-02 22:10:02,177 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-11-02 22:10:02,178 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-11-02 22:10:02,178 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-11-02 22:10:02,178 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2021-11-02 22:10:02,178 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-02 22:10:02,178 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-11-02 22:10:02,178 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-11-02 22:10:02,179 INFO L133 ssoRankerPreferences]: Filename of dumped script: test-0232_1-1.i_Iteration2_Lasso [2021-11-02 22:10:02,179 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-11-02 22:10:02,179 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-11-02 22:10:02,207 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-02 22:10:02,211 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-02 22:10:02,215 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-02 22:10:02,217 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-02 22:10:02,219 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-02 22:10:04,018 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-02 22:10:04,020 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-02 22:10:04,021 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-02 22:10:04,023 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-02 22:10:04,025 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-02 22:10:04,026 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-02 22:10:04,028 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-02 22:10:04,029 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-02 22:10:04,036 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-02 22:10:04,038 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-02 22:10:04,039 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-02 22:10:04,041 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-02 22:10:04,043 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-02 22:10:04,051 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-02 22:10:04,053 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-02 22:10:04,055 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-02 22:10:04,069 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-02 22:10:04,073 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-02 22:10:04,082 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-02 22:10:04,085 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-02 22:10:04,087 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-02 22:10:04,089 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-02 22:10:04,092 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-02 22:10:04,099 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-02 22:10:04,101 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-02 22:10:04,103 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-02 22:10:04,106 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-02 22:10:04,107 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-02 22:10:04,109 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-02 22:10:04,110 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-02 22:10:04,113 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-02 22:10:04,114 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-02 22:10:04,116 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-02 22:10:04,118 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-02 22:10:08,712 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-11-02 22:10:08,717 INFO L490 LassoAnalysis]: Using template 'affine'. [2021-11-02 22:10:08,719 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-02 22:10:08,719 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_213b1af9-6030-4d19-89ee-25ebe2f01c5b/bin/uautomizer-tBqnrhUYjU/z3 [2021-11-02 22:10:08,720 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_213b1af9-6030-4d19-89ee-25ebe2f01c5b/bin/uautomizer-tBqnrhUYjU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-02 22:10:08,721 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_213b1af9-6030-4d19-89ee-25ebe2f01c5b/bin/uautomizer-tBqnrhUYjU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Waiting until timeout for monitored process [2021-11-02 22:10:08,722 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-11-02 22:10:08,731 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-02 22:10:08,731 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-11-02 22:10:08,732 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-02 22:10:08,732 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-02 22:10:08,732 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-02 22:10:08,738 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-11-02 22:10:08,738 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-11-02 22:10:08,745 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-11-02 22:10:08,772 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_213b1af9-6030-4d19-89ee-25ebe2f01c5b/bin/uautomizer-tBqnrhUYjU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Forceful destruction successful, exit code 0 [2021-11-02 22:10:08,773 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-02 22:10:08,773 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_213b1af9-6030-4d19-89ee-25ebe2f01c5b/bin/uautomizer-tBqnrhUYjU/z3 [2021-11-02 22:10:08,774 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_213b1af9-6030-4d19-89ee-25ebe2f01c5b/bin/uautomizer-tBqnrhUYjU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-02 22:10:08,778 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_213b1af9-6030-4d19-89ee-25ebe2f01c5b/bin/uautomizer-tBqnrhUYjU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Waiting until timeout for monitored process [2021-11-02 22:10:08,780 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-11-02 22:10:08,787 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-02 22:10:08,787 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-02 22:10:08,787 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-02 22:10:08,788 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-02 22:10:08,792 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-11-02 22:10:08,793 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-11-02 22:10:08,808 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-11-02 22:10:08,847 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_213b1af9-6030-4d19-89ee-25ebe2f01c5b/bin/uautomizer-tBqnrhUYjU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Forceful destruction successful, exit code 0 [2021-11-02 22:10:08,847 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-02 22:10:08,848 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_213b1af9-6030-4d19-89ee-25ebe2f01c5b/bin/uautomizer-tBqnrhUYjU/z3 [2021-11-02 22:10:08,849 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_213b1af9-6030-4d19-89ee-25ebe2f01c5b/bin/uautomizer-tBqnrhUYjU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-02 22:10:08,858 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 [2021-11-02 22:10:08,865 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_213b1af9-6030-4d19-89ee-25ebe2f01c5b/bin/uautomizer-tBqnrhUYjU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Waiting until timeout for monitored process [2021-11-02 22:10:08,867 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-02 22:10:08,867 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-11-02 22:10:08,867 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-02 22:10:08,867 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-02 22:10:08,867 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-02 22:10:08,868 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-11-02 22:10:08,868 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-11-02 22:10:08,880 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-11-02 22:10:08,904 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_213b1af9-6030-4d19-89ee-25ebe2f01c5b/bin/uautomizer-tBqnrhUYjU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Forceful destruction successful, exit code 0 [2021-11-02 22:10:08,905 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-02 22:10:08,905 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_213b1af9-6030-4d19-89ee-25ebe2f01c5b/bin/uautomizer-tBqnrhUYjU/z3 [2021-11-02 22:10:08,906 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_213b1af9-6030-4d19-89ee-25ebe2f01c5b/bin/uautomizer-tBqnrhUYjU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-02 22:10:08,907 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_213b1af9-6030-4d19-89ee-25ebe2f01c5b/bin/uautomizer-tBqnrhUYjU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Waiting until timeout for monitored process [2021-11-02 22:10:08,911 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 [2021-11-02 22:10:08,918 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-02 22:10:08,918 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-02 22:10:08,918 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-02 22:10:08,918 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-02 22:10:08,921 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-11-02 22:10:08,921 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-11-02 22:10:08,945 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-11-02 22:10:08,981 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_213b1af9-6030-4d19-89ee-25ebe2f01c5b/bin/uautomizer-tBqnrhUYjU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Forceful destruction successful, exit code 0 [2021-11-02 22:10:08,981 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-02 22:10:08,981 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_213b1af9-6030-4d19-89ee-25ebe2f01c5b/bin/uautomizer-tBqnrhUYjU/z3 [2021-11-02 22:10:08,982 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_213b1af9-6030-4d19-89ee-25ebe2f01c5b/bin/uautomizer-tBqnrhUYjU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-02 22:10:08,988 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_213b1af9-6030-4d19-89ee-25ebe2f01c5b/bin/uautomizer-tBqnrhUYjU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Waiting until timeout for monitored process [2021-11-02 22:10:08,989 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-11-02 22:10:08,996 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-02 22:10:08,996 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-02 22:10:08,996 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-02 22:10:08,996 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-02 22:10:09,002 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-11-02 22:10:09,005 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-11-02 22:10:09,008 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-11-02 22:10:09,029 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_213b1af9-6030-4d19-89ee-25ebe2f01c5b/bin/uautomizer-tBqnrhUYjU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Ended with exit code 0 [2021-11-02 22:10:09,030 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-02 22:10:09,030 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_213b1af9-6030-4d19-89ee-25ebe2f01c5b/bin/uautomizer-tBqnrhUYjU/z3 [2021-11-02 22:10:09,031 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_213b1af9-6030-4d19-89ee-25ebe2f01c5b/bin/uautomizer-tBqnrhUYjU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-02 22:10:09,031 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_213b1af9-6030-4d19-89ee-25ebe2f01c5b/bin/uautomizer-tBqnrhUYjU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Waiting until timeout for monitored process [2021-11-02 22:10:09,032 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 [2021-11-02 22:10:09,039 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-02 22:10:09,039 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-02 22:10:09,039 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-02 22:10:09,040 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-02 22:10:09,046 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-11-02 22:10:09,047 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-11-02 22:10:09,060 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-11-02 22:10:09,099 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_213b1af9-6030-4d19-89ee-25ebe2f01c5b/bin/uautomizer-tBqnrhUYjU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Forceful destruction successful, exit code 0 [2021-11-02 22:10:09,099 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-02 22:10:09,099 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_213b1af9-6030-4d19-89ee-25ebe2f01c5b/bin/uautomizer-tBqnrhUYjU/z3 [2021-11-02 22:10:09,110 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_213b1af9-6030-4d19-89ee-25ebe2f01c5b/bin/uautomizer-tBqnrhUYjU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-02 22:10:09,118 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-11-02 22:10:09,126 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_213b1af9-6030-4d19-89ee-25ebe2f01c5b/bin/uautomizer-tBqnrhUYjU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Waiting until timeout for monitored process [2021-11-02 22:10:09,126 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-02 22:10:09,126 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-02 22:10:09,126 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-02 22:10:09,126 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-02 22:10:09,129 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-11-02 22:10:09,129 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-11-02 22:10:09,145 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-11-02 22:10:09,185 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_213b1af9-6030-4d19-89ee-25ebe2f01c5b/bin/uautomizer-tBqnrhUYjU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Forceful destruction successful, exit code 0 [2021-11-02 22:10:09,186 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-02 22:10:09,186 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_213b1af9-6030-4d19-89ee-25ebe2f01c5b/bin/uautomizer-tBqnrhUYjU/z3 [2021-11-02 22:10:09,187 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_213b1af9-6030-4d19-89ee-25ebe2f01c5b/bin/uautomizer-tBqnrhUYjU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-02 22:10:09,194 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 [2021-11-02 22:10:09,203 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-02 22:10:09,203 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-02 22:10:09,203 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-02 22:10:09,203 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-02 22:10:09,208 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-11-02 22:10:09,208 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-11-02 22:10:09,213 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_213b1af9-6030-4d19-89ee-25ebe2f01c5b/bin/uautomizer-tBqnrhUYjU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Waiting until timeout for monitored process [2021-11-02 22:10:09,221 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-11-02 22:10:09,245 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_213b1af9-6030-4d19-89ee-25ebe2f01c5b/bin/uautomizer-tBqnrhUYjU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Forceful destruction successful, exit code 0 [2021-11-02 22:10:09,245 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-02 22:10:09,245 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_213b1af9-6030-4d19-89ee-25ebe2f01c5b/bin/uautomizer-tBqnrhUYjU/z3 [2021-11-02 22:10:09,246 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_213b1af9-6030-4d19-89ee-25ebe2f01c5b/bin/uautomizer-tBqnrhUYjU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-02 22:10:09,256 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_213b1af9-6030-4d19-89ee-25ebe2f01c5b/bin/uautomizer-tBqnrhUYjU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Waiting until timeout for monitored process [2021-11-02 22:10:09,257 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 [2021-11-02 22:10:09,264 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-02 22:10:09,264 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-11-02 22:10:09,264 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-02 22:10:09,264 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-02 22:10:09,264 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-02 22:10:09,265 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-11-02 22:10:09,265 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-11-02 22:10:09,266 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-11-02 22:10:09,285 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_213b1af9-6030-4d19-89ee-25ebe2f01c5b/bin/uautomizer-tBqnrhUYjU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Forceful destruction successful, exit code 0 [2021-11-02 22:10:09,285 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-02 22:10:09,285 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_213b1af9-6030-4d19-89ee-25ebe2f01c5b/bin/uautomizer-tBqnrhUYjU/z3 [2021-11-02 22:10:09,286 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_213b1af9-6030-4d19-89ee-25ebe2f01c5b/bin/uautomizer-tBqnrhUYjU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-02 22:10:09,290 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_213b1af9-6030-4d19-89ee-25ebe2f01c5b/bin/uautomizer-tBqnrhUYjU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Waiting until timeout for monitored process [2021-11-02 22:10:09,290 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 [2021-11-02 22:10:09,297 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-02 22:10:09,297 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-02 22:10:09,298 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-02 22:10:09,298 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-02 22:10:09,299 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-11-02 22:10:09,299 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-11-02 22:10:09,325 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-11-02 22:10:09,348 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_213b1af9-6030-4d19-89ee-25ebe2f01c5b/bin/uautomizer-tBqnrhUYjU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Forceful destruction successful, exit code 0 [2021-11-02 22:10:09,349 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-02 22:10:09,349 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_213b1af9-6030-4d19-89ee-25ebe2f01c5b/bin/uautomizer-tBqnrhUYjU/z3 [2021-11-02 22:10:09,350 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_213b1af9-6030-4d19-89ee-25ebe2f01c5b/bin/uautomizer-tBqnrhUYjU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-02 22:10:09,354 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_213b1af9-6030-4d19-89ee-25ebe2f01c5b/bin/uautomizer-tBqnrhUYjU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Waiting until timeout for monitored process [2021-11-02 22:10:09,355 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-11-02 22:10:09,362 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-02 22:10:09,362 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-02 22:10:09,363 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-02 22:10:09,363 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-02 22:10:09,364 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-11-02 22:10:09,364 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-11-02 22:10:09,367 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-11-02 22:10:09,388 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_213b1af9-6030-4d19-89ee-25ebe2f01c5b/bin/uautomizer-tBqnrhUYjU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Forceful destruction successful, exit code 0 [2021-11-02 22:10:09,388 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-02 22:10:09,388 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_213b1af9-6030-4d19-89ee-25ebe2f01c5b/bin/uautomizer-tBqnrhUYjU/z3 [2021-11-02 22:10:09,389 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_213b1af9-6030-4d19-89ee-25ebe2f01c5b/bin/uautomizer-tBqnrhUYjU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-02 22:10:09,390 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_213b1af9-6030-4d19-89ee-25ebe2f01c5b/bin/uautomizer-tBqnrhUYjU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Waiting until timeout for monitored process [2021-11-02 22:10:09,393 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 [2021-11-02 22:10:09,400 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-02 22:10:09,400 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-11-02 22:10:09,401 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-02 22:10:09,401 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-02 22:10:09,401 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-02 22:10:09,401 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-11-02 22:10:09,401 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-11-02 22:10:09,402 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-11-02 22:10:09,421 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_213b1af9-6030-4d19-89ee-25ebe2f01c5b/bin/uautomizer-tBqnrhUYjU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Forceful destruction successful, exit code 0 [2021-11-02 22:10:09,421 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-02 22:10:09,421 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_213b1af9-6030-4d19-89ee-25ebe2f01c5b/bin/uautomizer-tBqnrhUYjU/z3 [2021-11-02 22:10:09,422 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_213b1af9-6030-4d19-89ee-25ebe2f01c5b/bin/uautomizer-tBqnrhUYjU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-02 22:10:09,423 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_213b1af9-6030-4d19-89ee-25ebe2f01c5b/bin/uautomizer-tBqnrhUYjU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (14)] Waiting until timeout for monitored process [2021-11-02 22:10:09,423 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-11-02 22:10:09,432 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-02 22:10:09,432 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-11-02 22:10:09,432 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-02 22:10:09,432 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-02 22:10:09,432 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-02 22:10:09,433 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-11-02 22:10:09,433 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-11-02 22:10:09,453 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-11-02 22:10:09,486 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_213b1af9-6030-4d19-89ee-25ebe2f01c5b/bin/uautomizer-tBqnrhUYjU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (14)] Forceful destruction successful, exit code 0 [2021-11-02 22:10:09,486 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-02 22:10:09,486 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_213b1af9-6030-4d19-89ee-25ebe2f01c5b/bin/uautomizer-tBqnrhUYjU/z3 [2021-11-02 22:10:09,487 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_213b1af9-6030-4d19-89ee-25ebe2f01c5b/bin/uautomizer-tBqnrhUYjU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-02 22:10:09,506 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 [2021-11-02 22:10:09,515 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-02 22:10:09,515 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-11-02 22:10:09,515 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-02 22:10:09,515 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-02 22:10:09,515 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-02 22:10:09,516 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-11-02 22:10:09,516 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-11-02 22:10:09,517 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_213b1af9-6030-4d19-89ee-25ebe2f01c5b/bin/uautomizer-tBqnrhUYjU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (15)] Waiting until timeout for monitored process [2021-11-02 22:10:09,533 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-11-02 22:10:09,552 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_213b1af9-6030-4d19-89ee-25ebe2f01c5b/bin/uautomizer-tBqnrhUYjU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (15)] Forceful destruction successful, exit code 0 [2021-11-02 22:10:09,552 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-02 22:10:09,552 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_213b1af9-6030-4d19-89ee-25ebe2f01c5b/bin/uautomizer-tBqnrhUYjU/z3 [2021-11-02 22:10:09,553 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_213b1af9-6030-4d19-89ee-25ebe2f01c5b/bin/uautomizer-tBqnrhUYjU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-02 22:10:09,556 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_213b1af9-6030-4d19-89ee-25ebe2f01c5b/bin/uautomizer-tBqnrhUYjU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (16)] Waiting until timeout for monitored process [2021-11-02 22:10:09,557 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 [2021-11-02 22:10:09,563 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-02 22:10:09,563 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-11-02 22:10:09,564 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-02 22:10:09,564 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-02 22:10:09,564 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-02 22:10:09,564 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-11-02 22:10:09,564 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-11-02 22:10:09,565 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-11-02 22:10:09,588 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_213b1af9-6030-4d19-89ee-25ebe2f01c5b/bin/uautomizer-tBqnrhUYjU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (16)] Ended with exit code 0 [2021-11-02 22:10:09,588 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-02 22:10:09,588 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_213b1af9-6030-4d19-89ee-25ebe2f01c5b/bin/uautomizer-tBqnrhUYjU/z3 [2021-11-02 22:10:09,589 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_213b1af9-6030-4d19-89ee-25ebe2f01c5b/bin/uautomizer-tBqnrhUYjU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-02 22:10:09,591 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_213b1af9-6030-4d19-89ee-25ebe2f01c5b/bin/uautomizer-tBqnrhUYjU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (17)] Waiting until timeout for monitored process [2021-11-02 22:10:09,592 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 [2021-11-02 22:10:09,599 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-02 22:10:09,599 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-02 22:10:09,599 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-02 22:10:09,599 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-02 22:10:09,601 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-11-02 22:10:09,601 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-11-02 22:10:09,603 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-11-02 22:10:09,622 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_213b1af9-6030-4d19-89ee-25ebe2f01c5b/bin/uautomizer-tBqnrhUYjU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (17)] Forceful destruction successful, exit code 0 [2021-11-02 22:10:09,622 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-02 22:10:09,622 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_213b1af9-6030-4d19-89ee-25ebe2f01c5b/bin/uautomizer-tBqnrhUYjU/z3 [2021-11-02 22:10:09,623 INFO L229 MonitoredProcess]: Starting monitored process 18 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_213b1af9-6030-4d19-89ee-25ebe2f01c5b/bin/uautomizer-tBqnrhUYjU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-02 22:10:09,630 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_213b1af9-6030-4d19-89ee-25ebe2f01c5b/bin/uautomizer-tBqnrhUYjU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (18)] Waiting until timeout for monitored process [2021-11-02 22:10:09,631 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 [2021-11-02 22:10:09,639 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-02 22:10:09,639 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-02 22:10:09,639 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-02 22:10:09,639 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-02 22:10:09,643 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-11-02 22:10:09,643 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-11-02 22:10:09,669 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-11-02 22:10:09,697 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_213b1af9-6030-4d19-89ee-25ebe2f01c5b/bin/uautomizer-tBqnrhUYjU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (18)] Forceful destruction successful, exit code 0 [2021-11-02 22:10:09,697 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-02 22:10:09,697 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_213b1af9-6030-4d19-89ee-25ebe2f01c5b/bin/uautomizer-tBqnrhUYjU/z3 [2021-11-02 22:10:09,698 INFO L229 MonitoredProcess]: Starting monitored process 19 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_213b1af9-6030-4d19-89ee-25ebe2f01c5b/bin/uautomizer-tBqnrhUYjU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-02 22:10:09,699 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_213b1af9-6030-4d19-89ee-25ebe2f01c5b/bin/uautomizer-tBqnrhUYjU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (19)] Waiting until timeout for monitored process [2021-11-02 22:10:09,703 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 [2021-11-02 22:10:09,710 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-02 22:10:09,710 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-02 22:10:09,710 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-02 22:10:09,711 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-02 22:10:09,712 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-11-02 22:10:09,712 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-11-02 22:10:09,745 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-11-02 22:10:09,785 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_213b1af9-6030-4d19-89ee-25ebe2f01c5b/bin/uautomizer-tBqnrhUYjU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (19)] Forceful destruction successful, exit code 0 [2021-11-02 22:10:09,786 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-02 22:10:09,786 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_213b1af9-6030-4d19-89ee-25ebe2f01c5b/bin/uautomizer-tBqnrhUYjU/z3 [2021-11-02 22:10:09,787 INFO L229 MonitoredProcess]: Starting monitored process 20 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_213b1af9-6030-4d19-89ee-25ebe2f01c5b/bin/uautomizer-tBqnrhUYjU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-02 22:10:09,798 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-11-02 22:10:09,807 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-02 22:10:09,807 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-11-02 22:10:09,807 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-02 22:10:09,807 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-02 22:10:09,807 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-02 22:10:09,808 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-11-02 22:10:09,808 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-11-02 22:10:09,809 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_213b1af9-6030-4d19-89ee-25ebe2f01c5b/bin/uautomizer-tBqnrhUYjU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (20)] Waiting until timeout for monitored process [2021-11-02 22:10:09,825 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-11-02 22:10:09,860 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_213b1af9-6030-4d19-89ee-25ebe2f01c5b/bin/uautomizer-tBqnrhUYjU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (20)] Forceful destruction successful, exit code 0 [2021-11-02 22:10:09,861 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-02 22:10:09,861 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_213b1af9-6030-4d19-89ee-25ebe2f01c5b/bin/uautomizer-tBqnrhUYjU/z3 [2021-11-02 22:10:09,862 INFO L229 MonitoredProcess]: Starting monitored process 21 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_213b1af9-6030-4d19-89ee-25ebe2f01c5b/bin/uautomizer-tBqnrhUYjU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-02 22:10:09,873 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 [2021-11-02 22:10:09,882 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-02 22:10:09,882 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-11-02 22:10:09,883 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-02 22:10:09,883 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-02 22:10:09,883 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-02 22:10:09,884 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-11-02 22:10:09,884 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-11-02 22:10:09,885 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_213b1af9-6030-4d19-89ee-25ebe2f01c5b/bin/uautomizer-tBqnrhUYjU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (21)] Waiting until timeout for monitored process [2021-11-02 22:10:09,897 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-11-02 22:10:09,933 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_213b1af9-6030-4d19-89ee-25ebe2f01c5b/bin/uautomizer-tBqnrhUYjU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (21)] Forceful destruction successful, exit code 0 [2021-11-02 22:10:09,933 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-02 22:10:09,933 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_213b1af9-6030-4d19-89ee-25ebe2f01c5b/bin/uautomizer-tBqnrhUYjU/z3 [2021-11-02 22:10:09,934 INFO L229 MonitoredProcess]: Starting monitored process 22 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_213b1af9-6030-4d19-89ee-25ebe2f01c5b/bin/uautomizer-tBqnrhUYjU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-02 22:10:09,936 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 [2021-11-02 22:10:09,947 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-02 22:10:09,947 INFO L203 nArgumentSynthesizer]: 4 stem disjuncts [2021-11-02 22:10:09,947 INFO L204 nArgumentSynthesizer]: 8 loop disjuncts [2021-11-02 22:10:09,947 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-02 22:10:09,960 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_213b1af9-6030-4d19-89ee-25ebe2f01c5b/bin/uautomizer-tBqnrhUYjU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (22)] Waiting until timeout for monitored process [2021-11-02 22:10:11,034 INFO L401 nArgumentSynthesizer]: We have 208 Motzkin's Theorem applications. [2021-11-02 22:10:11,034 INFO L402 nArgumentSynthesizer]: A total of 16 supporting invariants were added. [2021-11-02 22:10:13,380 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-11-02 22:10:13,416 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_213b1af9-6030-4d19-89ee-25ebe2f01c5b/bin/uautomizer-tBqnrhUYjU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (22)] Ended with exit code 0 [2021-11-02 22:10:13,417 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-02 22:10:13,417 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_213b1af9-6030-4d19-89ee-25ebe2f01c5b/bin/uautomizer-tBqnrhUYjU/z3 [2021-11-02 22:10:13,424 INFO L229 MonitoredProcess]: Starting monitored process 23 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_213b1af9-6030-4d19-89ee-25ebe2f01c5b/bin/uautomizer-tBqnrhUYjU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-02 22:10:13,424 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_213b1af9-6030-4d19-89ee-25ebe2f01c5b/bin/uautomizer-tBqnrhUYjU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (23)] Waiting until timeout for monitored process [2021-11-02 22:10:13,425 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 [2021-11-02 22:10:13,432 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-02 22:10:13,432 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-02 22:10:13,432 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-02 22:10:13,432 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-02 22:10:13,434 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-11-02 22:10:13,434 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-11-02 22:10:13,437 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-11-02 22:10:13,456 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_213b1af9-6030-4d19-89ee-25ebe2f01c5b/bin/uautomizer-tBqnrhUYjU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (23)] Ended with exit code 0 [2021-11-02 22:10:13,456 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-02 22:10:13,456 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_213b1af9-6030-4d19-89ee-25ebe2f01c5b/bin/uautomizer-tBqnrhUYjU/z3 [2021-11-02 22:10:13,457 INFO L229 MonitoredProcess]: Starting monitored process 24 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_213b1af9-6030-4d19-89ee-25ebe2f01c5b/bin/uautomizer-tBqnrhUYjU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-02 22:10:13,457 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_213b1af9-6030-4d19-89ee-25ebe2f01c5b/bin/uautomizer-tBqnrhUYjU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (24)] Waiting until timeout for monitored process [2021-11-02 22:10:13,458 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 [2021-11-02 22:10:13,465 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-02 22:10:13,465 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-11-02 22:10:13,465 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-02 22:10:13,465 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-02 22:10:13,465 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-02 22:10:13,466 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-11-02 22:10:13,466 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-11-02 22:10:13,467 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-11-02 22:10:13,488 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_213b1af9-6030-4d19-89ee-25ebe2f01c5b/bin/uautomizer-tBqnrhUYjU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (24)] Forceful destruction successful, exit code 0 [2021-11-02 22:10:13,488 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-02 22:10:13,488 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_213b1af9-6030-4d19-89ee-25ebe2f01c5b/bin/uautomizer-tBqnrhUYjU/z3 [2021-11-02 22:10:13,489 INFO L229 MonitoredProcess]: Starting monitored process 25 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_213b1af9-6030-4d19-89ee-25ebe2f01c5b/bin/uautomizer-tBqnrhUYjU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-02 22:10:13,490 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_213b1af9-6030-4d19-89ee-25ebe2f01c5b/bin/uautomizer-tBqnrhUYjU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (25)] Waiting until timeout for monitored process [2021-11-02 22:10:13,490 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 [2021-11-02 22:10:13,499 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-02 22:10:13,499 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-11-02 22:10:13,499 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-02 22:10:13,499 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-02 22:10:13,499 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-02 22:10:13,499 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-11-02 22:10:13,500 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-11-02 22:10:13,517 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-11-02 22:10:13,553 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_213b1af9-6030-4d19-89ee-25ebe2f01c5b/bin/uautomizer-tBqnrhUYjU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (25)] Forceful destruction successful, exit code 0 [2021-11-02 22:10:13,553 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-02 22:10:13,553 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_213b1af9-6030-4d19-89ee-25ebe2f01c5b/bin/uautomizer-tBqnrhUYjU/z3 [2021-11-02 22:10:13,566 INFO L229 MonitoredProcess]: Starting monitored process 26 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_213b1af9-6030-4d19-89ee-25ebe2f01c5b/bin/uautomizer-tBqnrhUYjU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-02 22:10:13,598 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_213b1af9-6030-4d19-89ee-25ebe2f01c5b/bin/uautomizer-tBqnrhUYjU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (26)] Waiting until timeout for monitored process [2021-11-02 22:10:13,598 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 [2021-11-02 22:10:13,606 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-02 22:10:13,606 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-11-02 22:10:13,606 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-02 22:10:13,606 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-02 22:10:13,606 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-02 22:10:13,606 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-11-02 22:10:13,606 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-11-02 22:10:13,607 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-11-02 22:10:13,628 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_213b1af9-6030-4d19-89ee-25ebe2f01c5b/bin/uautomizer-tBqnrhUYjU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (26)] Forceful destruction successful, exit code 0 [2021-11-02 22:10:13,629 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-02 22:10:13,629 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_213b1af9-6030-4d19-89ee-25ebe2f01c5b/bin/uautomizer-tBqnrhUYjU/z3 [2021-11-02 22:10:13,630 INFO L229 MonitoredProcess]: Starting monitored process 27 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_213b1af9-6030-4d19-89ee-25ebe2f01c5b/bin/uautomizer-tBqnrhUYjU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-02 22:10:13,647 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-11-02 22:10:13,648 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_213b1af9-6030-4d19-89ee-25ebe2f01c5b/bin/uautomizer-tBqnrhUYjU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (27)] Waiting until timeout for monitored process [2021-11-02 22:10:13,654 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-02 22:10:13,654 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-11-02 22:10:13,654 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-02 22:10:13,655 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-02 22:10:13,655 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-02 22:10:13,655 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-11-02 22:10:13,655 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-11-02 22:10:13,657 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-11-02 22:10:13,678 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_213b1af9-6030-4d19-89ee-25ebe2f01c5b/bin/uautomizer-tBqnrhUYjU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (27)] Forceful destruction successful, exit code 0 [2021-11-02 22:10:13,679 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-02 22:10:13,679 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_213b1af9-6030-4d19-89ee-25ebe2f01c5b/bin/uautomizer-tBqnrhUYjU/z3 [2021-11-02 22:10:13,679 INFO L229 MonitoredProcess]: Starting monitored process 28 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_213b1af9-6030-4d19-89ee-25ebe2f01c5b/bin/uautomizer-tBqnrhUYjU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-02 22:10:13,680 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_213b1af9-6030-4d19-89ee-25ebe2f01c5b/bin/uautomizer-tBqnrhUYjU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (28)] Waiting until timeout for monitored process [2021-11-02 22:10:13,681 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 [2021-11-02 22:10:13,689 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-02 22:10:13,690 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-11-02 22:10:13,690 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-02 22:10:13,690 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-02 22:10:13,690 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-02 22:10:13,691 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-11-02 22:10:13,691 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-11-02 22:10:13,693 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-11-02 22:10:13,714 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_213b1af9-6030-4d19-89ee-25ebe2f01c5b/bin/uautomizer-tBqnrhUYjU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (28)] Ended with exit code 0 [2021-11-02 22:10:13,715 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-02 22:10:13,715 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_213b1af9-6030-4d19-89ee-25ebe2f01c5b/bin/uautomizer-tBqnrhUYjU/z3 [2021-11-02 22:10:13,715 INFO L229 MonitoredProcess]: Starting monitored process 29 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_213b1af9-6030-4d19-89ee-25ebe2f01c5b/bin/uautomizer-tBqnrhUYjU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-02 22:10:13,717 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_213b1af9-6030-4d19-89ee-25ebe2f01c5b/bin/uautomizer-tBqnrhUYjU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (29)] Waiting until timeout for monitored process [2021-11-02 22:10:13,718 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 [2021-11-02 22:10:13,724 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-02 22:10:13,724 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-11-02 22:10:13,725 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-02 22:10:13,725 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-02 22:10:13,725 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-02 22:10:13,725 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-11-02 22:10:13,725 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-11-02 22:10:13,728 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-11-02 22:10:13,746 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_213b1af9-6030-4d19-89ee-25ebe2f01c5b/bin/uautomizer-tBqnrhUYjU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (29)] Forceful destruction successful, exit code 0 [2021-11-02 22:10:13,746 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-02 22:10:13,746 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_213b1af9-6030-4d19-89ee-25ebe2f01c5b/bin/uautomizer-tBqnrhUYjU/z3 [2021-11-02 22:10:13,747 INFO L229 MonitoredProcess]: Starting monitored process 30 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_213b1af9-6030-4d19-89ee-25ebe2f01c5b/bin/uautomizer-tBqnrhUYjU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-02 22:10:13,748 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_213b1af9-6030-4d19-89ee-25ebe2f01c5b/bin/uautomizer-tBqnrhUYjU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (30)] Waiting until timeout for monitored process [2021-11-02 22:10:13,748 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 [2021-11-02 22:10:13,755 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-02 22:10:13,755 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-11-02 22:10:13,755 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-02 22:10:13,755 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-02 22:10:13,756 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-02 22:10:13,756 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-11-02 22:10:13,756 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-11-02 22:10:13,757 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-11-02 22:10:13,775 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_213b1af9-6030-4d19-89ee-25ebe2f01c5b/bin/uautomizer-tBqnrhUYjU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (30)] Forceful destruction successful, exit code 0 [2021-11-02 22:10:13,775 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-02 22:10:13,775 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_213b1af9-6030-4d19-89ee-25ebe2f01c5b/bin/uautomizer-tBqnrhUYjU/z3 [2021-11-02 22:10:13,776 INFO L229 MonitoredProcess]: Starting monitored process 31 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_213b1af9-6030-4d19-89ee-25ebe2f01c5b/bin/uautomizer-tBqnrhUYjU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-02 22:10:13,778 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 [2021-11-02 22:10:13,785 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_213b1af9-6030-4d19-89ee-25ebe2f01c5b/bin/uautomizer-tBqnrhUYjU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (31)] Waiting until timeout for monitored process [2021-11-02 22:10:13,785 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-02 22:10:13,785 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-11-02 22:10:13,786 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-02 22:10:13,786 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-02 22:10:13,786 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-02 22:10:13,786 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-11-02 22:10:13,786 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-11-02 22:10:13,787 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-11-02 22:10:13,805 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_213b1af9-6030-4d19-89ee-25ebe2f01c5b/bin/uautomizer-tBqnrhUYjU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (31)] Forceful destruction successful, exit code 0 [2021-11-02 22:10:13,805 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-02 22:10:13,806 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_213b1af9-6030-4d19-89ee-25ebe2f01c5b/bin/uautomizer-tBqnrhUYjU/z3 [2021-11-02 22:10:13,806 INFO L229 MonitoredProcess]: Starting monitored process 32 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_213b1af9-6030-4d19-89ee-25ebe2f01c5b/bin/uautomizer-tBqnrhUYjU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-02 22:10:13,807 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_213b1af9-6030-4d19-89ee-25ebe2f01c5b/bin/uautomizer-tBqnrhUYjU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (32)] Waiting until timeout for monitored process [2021-11-02 22:10:13,807 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 [2021-11-02 22:10:13,814 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-02 22:10:13,814 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-11-02 22:10:13,814 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-02 22:10:13,814 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-02 22:10:13,814 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-02 22:10:13,815 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-11-02 22:10:13,815 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-11-02 22:10:13,817 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-11-02 22:10:13,835 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_213b1af9-6030-4d19-89ee-25ebe2f01c5b/bin/uautomizer-tBqnrhUYjU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (32)] Ended with exit code 0 [2021-11-02 22:10:13,836 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-02 22:10:13,836 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_213b1af9-6030-4d19-89ee-25ebe2f01c5b/bin/uautomizer-tBqnrhUYjU/z3 [2021-11-02 22:10:13,837 INFO L229 MonitoredProcess]: Starting monitored process 33 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_213b1af9-6030-4d19-89ee-25ebe2f01c5b/bin/uautomizer-tBqnrhUYjU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-02 22:10:13,837 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_213b1af9-6030-4d19-89ee-25ebe2f01c5b/bin/uautomizer-tBqnrhUYjU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (33)] Waiting until timeout for monitored process [2021-11-02 22:10:13,838 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 [2021-11-02 22:10:13,844 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-02 22:10:13,845 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-02 22:10:13,845 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-02 22:10:13,845 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-02 22:10:13,846 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-11-02 22:10:13,846 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-11-02 22:10:13,848 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-11-02 22:10:13,866 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_213b1af9-6030-4d19-89ee-25ebe2f01c5b/bin/uautomizer-tBqnrhUYjU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (33)] Ended with exit code 0 [2021-11-02 22:10:13,867 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-02 22:10:13,867 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_213b1af9-6030-4d19-89ee-25ebe2f01c5b/bin/uautomizer-tBqnrhUYjU/z3 [2021-11-02 22:10:13,868 INFO L229 MonitoredProcess]: Starting monitored process 34 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_213b1af9-6030-4d19-89ee-25ebe2f01c5b/bin/uautomizer-tBqnrhUYjU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-02 22:10:13,868 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_213b1af9-6030-4d19-89ee-25ebe2f01c5b/bin/uautomizer-tBqnrhUYjU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (34)] Waiting until timeout for monitored process [2021-11-02 22:10:13,869 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-11-02 22:10:13,877 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-02 22:10:13,878 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-11-02 22:10:13,878 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-02 22:10:13,878 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-02 22:10:13,878 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-02 22:10:13,878 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-11-02 22:10:13,878 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-11-02 22:10:13,891 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-11-02 22:10:13,909 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_213b1af9-6030-4d19-89ee-25ebe2f01c5b/bin/uautomizer-tBqnrhUYjU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (34)] Ended with exit code 0 [2021-11-02 22:10:13,909 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-02 22:10:13,909 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_213b1af9-6030-4d19-89ee-25ebe2f01c5b/bin/uautomizer-tBqnrhUYjU/z3 [2021-11-02 22:10:13,910 INFO L229 MonitoredProcess]: Starting monitored process 35 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_213b1af9-6030-4d19-89ee-25ebe2f01c5b/bin/uautomizer-tBqnrhUYjU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-02 22:10:13,912 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_213b1af9-6030-4d19-89ee-25ebe2f01c5b/bin/uautomizer-tBqnrhUYjU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (35)] Waiting until timeout for monitored process [2021-11-02 22:10:13,912 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 [2021-11-02 22:10:13,919 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-02 22:10:13,919 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-11-02 22:10:13,919 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-02 22:10:13,919 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-02 22:10:13,919 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-02 22:10:13,920 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-11-02 22:10:13,920 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-11-02 22:10:13,921 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-11-02 22:10:13,939 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_213b1af9-6030-4d19-89ee-25ebe2f01c5b/bin/uautomizer-tBqnrhUYjU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (35)] Ended with exit code 0 [2021-11-02 22:10:13,939 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-02 22:10:13,939 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_213b1af9-6030-4d19-89ee-25ebe2f01c5b/bin/uautomizer-tBqnrhUYjU/z3 [2021-11-02 22:10:13,940 INFO L229 MonitoredProcess]: Starting monitored process 36 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_213b1af9-6030-4d19-89ee-25ebe2f01c5b/bin/uautomizer-tBqnrhUYjU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-02 22:10:13,941 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_213b1af9-6030-4d19-89ee-25ebe2f01c5b/bin/uautomizer-tBqnrhUYjU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (36)] Waiting until timeout for monitored process [2021-11-02 22:10:13,942 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 [2021-11-02 22:10:13,949 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-02 22:10:13,949 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-11-02 22:10:13,949 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-02 22:10:13,949 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-02 22:10:13,950 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-02 22:10:13,950 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-11-02 22:10:13,950 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-11-02 22:10:13,961 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-11-02 22:10:13,982 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_213b1af9-6030-4d19-89ee-25ebe2f01c5b/bin/uautomizer-tBqnrhUYjU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (36)] Forceful destruction successful, exit code 0 [2021-11-02 22:10:13,983 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-02 22:10:13,983 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_213b1af9-6030-4d19-89ee-25ebe2f01c5b/bin/uautomizer-tBqnrhUYjU/z3 [2021-11-02 22:10:13,983 INFO L229 MonitoredProcess]: Starting monitored process 37 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_213b1af9-6030-4d19-89ee-25ebe2f01c5b/bin/uautomizer-tBqnrhUYjU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-02 22:10:13,984 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 [2021-11-02 22:10:13,986 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_213b1af9-6030-4d19-89ee-25ebe2f01c5b/bin/uautomizer-tBqnrhUYjU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (37)] Waiting until timeout for monitored process [2021-11-02 22:10:13,992 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-02 22:10:13,992 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-02 22:10:13,992 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-02 22:10:13,992 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-02 22:10:13,993 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-11-02 22:10:13,993 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-11-02 22:10:13,997 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2021-11-02 22:10:14,022 INFO L443 ModelExtractionUtils]: Simplification made 8 calls to the SMT solver. [2021-11-02 22:10:14,023 INFO L444 ModelExtractionUtils]: 0 out of 7 variables were initially zero. Simplification set additionally 4 variables to zero. [2021-11-02 22:10:14,024 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-02 22:10:14,024 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_213b1af9-6030-4d19-89ee-25ebe2f01c5b/bin/uautomizer-tBqnrhUYjU/z3 [2021-11-02 22:10:14,031 INFO L229 MonitoredProcess]: Starting monitored process 38 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_213b1af9-6030-4d19-89ee-25ebe2f01c5b/bin/uautomizer-tBqnrhUYjU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-02 22:10:14,032 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2021-11-02 22:10:14,032 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_213b1af9-6030-4d19-89ee-25ebe2f01c5b/bin/uautomizer-tBqnrhUYjU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (38)] Waiting until timeout for monitored process [2021-11-02 22:10:14,040 INFO L438 nArgumentSynthesizer]: Removed 2 redundant supporting invariants from a total of 2. [2021-11-02 22:10:14,040 INFO L513 LassoAnalysis]: Proved termination. [2021-11-02 22:10:14,041 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(~c~0) = -2*~c~0 + 39 Supporting invariants [] [2021-11-02 22:10:14,082 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_213b1af9-6030-4d19-89ee-25ebe2f01c5b/bin/uautomizer-tBqnrhUYjU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (37)] Forceful destruction successful, exit code 0 [2021-11-02 22:10:14,183 INFO L297 tatePredicateManager]: 11 out of 11 supporting invariants were superfluous and have been removed [2021-11-02 22:10:14,202 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-02 22:10:14,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-02 22:10:14,242 INFO L263 TraceCheckSpWp]: Trace formula consists of 90 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-02 22:10:14,243 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-02 22:10:14,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-02 22:10:14,294 INFO L263 TraceCheckSpWp]: Trace formula consists of 72 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-02 22:10:14,295 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-02 22:10:14,357 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-02 22:10:14,360 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 3 loop predicates [2021-11-02 22:10:14,361 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 13 states and 17 transitions. cyclomatic complexity: 6 Second operand has 5 states, 5 states have (on average 1.8) internal successors, (9), 5 states have internal predecessors, (9), 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) [2021-11-02 22:10:14,402 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 13 states and 17 transitions. cyclomatic complexity: 6. Second operand has 5 states, 5 states have (on average 1.8) internal successors, (9), 5 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 23 states and 32 transitions. Complement of second has 6 states. [2021-11-02 22:10:14,403 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 [2021-11-02 22:10:14,403 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5 states, 5 states have (on average 1.8) internal successors, (9), 5 states have internal predecessors, (9), 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) [2021-11-02 22:10:14,404 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 18 transitions. [2021-11-02 22:10:14,405 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 18 transitions. Stem has 4 letters. Loop has 5 letters. [2021-11-02 22:10:14,407 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-11-02 22:10:14,407 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 18 transitions. Stem has 9 letters. Loop has 5 letters. [2021-11-02 22:10:14,407 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-11-02 22:10:14,407 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 18 transitions. Stem has 4 letters. Loop has 10 letters. [2021-11-02 22:10:14,408 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-11-02 22:10:14,409 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 23 states and 32 transitions. [2021-11-02 22:10:14,414 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2021-11-02 22:10:14,417 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 23 states to 18 states and 24 transitions. [2021-11-02 22:10:14,417 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 11 [2021-11-02 22:10:14,417 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 13 [2021-11-02 22:10:14,418 INFO L73 IsDeterministic]: Start isDeterministic. Operand 18 states and 24 transitions. [2021-11-02 22:10:14,418 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2021-11-02 22:10:14,418 INFO L681 BuchiCegarLoop]: Abstraction has 18 states and 24 transitions. [2021-11-02 22:10:14,418 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18 states and 24 transitions. [2021-11-02 22:10:14,420 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18 to 17. [2021-11-02 22:10:14,421 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17 states, 17 states have (on average 1.3529411764705883) internal successors, (23), 16 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) [2021-11-02 22:10:14,421 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 23 transitions. [2021-11-02 22:10:14,422 INFO L704 BuchiCegarLoop]: Abstraction has 17 states and 23 transitions. [2021-11-02 22:10:14,422 INFO L587 BuchiCegarLoop]: Abstraction has 17 states and 23 transitions. [2021-11-02 22:10:14,422 INFO L425 BuchiCegarLoop]: ======== Iteration 3============ [2021-11-02 22:10:14,422 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 17 states and 23 transitions. [2021-11-02 22:10:14,424 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2021-11-02 22:10:14,424 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-11-02 22:10:14,424 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-11-02 22:10:14,425 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1] [2021-11-02 22:10:14,425 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1] [2021-11-02 22:10:14,425 INFO L791 eck$LassoCheckResult]: Stem: 183#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string0.base, #t~string0.offset := #Ultimate.allocOnStack(2);call write~init~int(48, #t~string0.base, #t~string0.offset, 1);call write~init~int(0, #t~string0.base, 1 + #t~string0.offset, 1);call #t~string1.base, #t~string1.offset := #Ultimate.allocOnStack(16);~c~0 := 0; 184#L-1 havoc main_#res;havoc main_#t~post14, main_#t~nondet13, main_#t~mem15.base, main_#t~mem15.offset, main_#t~mem16.base, main_#t~mem16.offset, main_#t~mem17.base, main_#t~mem17.offset, main_#t~mem18.base, main_#t~mem18.offset, main_#t~mem19.base, main_#t~mem19.offset, main_#t~post20, main_~next~0.base, main_~next~0.offset, main_#t~mem21.base, main_#t~mem21.offset, main_#t~mem22.base, main_#t~mem22.offset, main_#t~mem23.base, main_#t~mem23.offset, main_#t~post24, main_~next~1.base, main_~next~1.offset, main_~#list~0.base, main_~#list~0.offset, main_~length~0;call main_~#list~0.base, main_~#list~0.offset := #Ultimate.allocOnStack(4);call write~init~$Pointer$(0, 0, main_~#list~0.base, main_~#list~0.offset, 4);main_~length~0 := 0; 193#L543-3 append_#in~plist.base, append_#in~plist.offset := main_~#list~0.base, main_~#list~0.offset;havoc append_#t~post5, append_#t~malloc6.base, append_#t~malloc6.offset, append_#t~mem7.base, append_#t~mem7.offset, append_#t~mem8.base, append_#t~mem8.offset, append_#t~ite12.base, append_#t~ite12.offset, append_#t~mem9.base, append_#t~mem9.offset, append_#t~mem10.base, append_#t~mem10.offset, append_#t~malloc11.base, append_#t~malloc11.offset, append_~plist.base, append_~plist.offset, append_~item~0.base, append_~item~0.offset;append_~plist.base, append_~plist.offset := append_#in~plist.base, append_#in~plist.offset;append_#t~post5 := ~c~0;~c~0 := 1 + append_#t~post5;havoc append_#t~post5;call append_#t~malloc6.base, append_#t~malloc6.offset := #Ultimate.allocOnHeap(8);append_~item~0.base, append_~item~0.offset := append_#t~malloc6.base, append_#t~malloc6.offset;havoc append_#t~malloc6.base, append_#t~malloc6.offset;call append_#t~mem7.base, append_#t~mem7.offset := read~$Pointer$(append_~plist.base, append_~plist.offset, 4);call write~$Pointer$(append_#t~mem7.base, append_#t~mem7.offset, append_~item~0.base, append_~item~0.offset, 4);havoc append_#t~mem7.base, append_#t~mem7.offset;call append_#t~mem8.base, append_#t~mem8.offset := read~$Pointer$(append_~item~0.base, append_~item~0.offset, 4); 185#L534 assume !(append_#t~mem8.base != 0 || append_#t~mem8.offset != 0);call append_#t~malloc11.base, append_#t~malloc11.offset := #Ultimate.allocOnHeap(8);append_#t~ite12.base, append_#t~ite12.offset := append_#t~malloc11.base, append_#t~malloc11.offset; 186#L534-2 call write~$Pointer$(append_#t~ite12.base, append_#t~ite12.offset, append_~item~0.base, 4 + append_~item~0.offset, 4);havoc append_#t~mem8.base, append_#t~mem8.offset;havoc append_#t~ite12.base, append_#t~ite12.offset;havoc append_#t~mem9.base, append_#t~mem9.offset;havoc append_#t~mem10.base, append_#t~mem10.offset;havoc append_#t~malloc11.base, append_#t~malloc11.offset;call write~$Pointer$(append_~item~0.base, append_~item~0.offset, append_~plist.base, append_~plist.offset, 4); 180#L529 main_#t~post14 := main_~length~0;main_~length~0 := 1 + main_#t~post14;havoc main_#t~post14; 191#L543-1 assume !(0 != main_#t~nondet13 && ~c~0 < 20);havoc main_#t~nondet13; 194#L543-4 assume !(main_~length~0 > 0); 190#L556-1 [2021-11-02 22:10:14,426 INFO L793 eck$LassoCheckResult]: Loop: 190#L556-1 assume !!(main_~length~0 > 0);call main_#t~mem21.base, main_#t~mem21.offset := read~$Pointer$(main_~#list~0.base, main_~#list~0.offset, 4);call main_#t~mem22.base, main_#t~mem22.offset := read~$Pointer$(main_#t~mem21.base, main_#t~mem21.offset, 4);main_~next~1.base, main_~next~1.offset := main_#t~mem22.base, main_#t~mem22.offset;havoc main_#t~mem21.base, main_#t~mem21.offset;havoc main_#t~mem22.base, main_#t~mem22.offset;call main_#t~mem23.base, main_#t~mem23.offset := read~$Pointer$(main_~#list~0.base, main_~#list~0.offset, 4);call ULTIMATE.dealloc(main_#t~mem23.base, main_#t~mem23.offset);havoc main_#t~mem23.base, main_#t~mem23.offset;call write~$Pointer$(main_~next~1.base, main_~next~1.offset, main_~#list~0.base, main_~#list~0.offset, 4);main_#t~post24 := main_~length~0;main_~length~0 := main_#t~post24 - 1;havoc main_#t~post24; 190#L556-1 [2021-11-02 22:10:14,426 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-02 22:10:14,426 INFO L85 PathProgramCache]: Analyzing trace with hash 149888859, now seen corresponding path program 1 times [2021-11-02 22:10:14,426 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-02 22:10:14,429 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1057717477] [2021-11-02 22:10:14,429 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-02 22:10:14,430 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-02 22:10:14,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-02 22:10:14,480 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-02 22:10:14,482 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-02 22:10:14,485 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1057717477] [2021-11-02 22:10:14,486 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1057717477] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-02 22:10:14,486 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-02 22:10:14,486 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-02 22:10:14,486 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [323589578] [2021-11-02 22:10:14,486 INFO L796 eck$LassoCheckResult]: stem already infeasible [2021-11-02 22:10:14,487 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-02 22:10:14,487 INFO L85 PathProgramCache]: Analyzing trace with hash 76, now seen corresponding path program 1 times [2021-11-02 22:10:14,487 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-02 22:10:14,487 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1370033298] [2021-11-02 22:10:14,488 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-02 22:10:14,488 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-02 22:10:14,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-02 22:10:14,496 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-02 22:10:14,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-02 22:10:14,513 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-11-02 22:10:14,667 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-02 22:10:14,668 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-02 22:10:14,668 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-02 22:10:14,668 INFO L87 Difference]: Start difference. First operand 17 states and 23 transitions. cyclomatic complexity: 8 Second operand has 4 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 4 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 22:10:14,689 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-02 22:10:14,689 INFO L93 Difference]: Finished difference Result 19 states and 23 transitions. [2021-11-02 22:10:14,689 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-02 22:10:14,689 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 19 states and 23 transitions. [2021-11-02 22:10:14,690 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2021-11-02 22:10:14,691 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 19 states to 19 states and 23 transitions. [2021-11-02 22:10:14,691 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 13 [2021-11-02 22:10:14,691 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 13 [2021-11-02 22:10:14,691 INFO L73 IsDeterministic]: Start isDeterministic. Operand 19 states and 23 transitions. [2021-11-02 22:10:14,691 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2021-11-02 22:10:14,691 INFO L681 BuchiCegarLoop]: Abstraction has 19 states and 23 transitions. [2021-11-02 22:10:14,691 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19 states and 23 transitions. [2021-11-02 22:10:14,693 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19 to 17. [2021-11-02 22:10:14,693 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17 states, 17 states have (on average 1.2352941176470589) internal successors, (21), 16 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 22:10:14,693 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 21 transitions. [2021-11-02 22:10:14,694 INFO L704 BuchiCegarLoop]: Abstraction has 17 states and 21 transitions. [2021-11-02 22:10:14,694 INFO L587 BuchiCegarLoop]: Abstraction has 17 states and 21 transitions. [2021-11-02 22:10:14,694 INFO L425 BuchiCegarLoop]: ======== Iteration 4============ [2021-11-02 22:10:14,694 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 17 states and 21 transitions. [2021-11-02 22:10:14,694 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2021-11-02 22:10:14,694 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-11-02 22:10:14,695 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-11-02 22:10:14,695 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-02 22:10:14,695 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1] [2021-11-02 22:10:14,696 INFO L791 eck$LassoCheckResult]: Stem: 226#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string0.base, #t~string0.offset := #Ultimate.allocOnStack(2);call write~init~int(48, #t~string0.base, #t~string0.offset, 1);call write~init~int(0, #t~string0.base, 1 + #t~string0.offset, 1);call #t~string1.base, #t~string1.offset := #Ultimate.allocOnStack(16);~c~0 := 0; 227#L-1 havoc main_#res;havoc main_#t~post14, main_#t~nondet13, main_#t~mem15.base, main_#t~mem15.offset, main_#t~mem16.base, main_#t~mem16.offset, main_#t~mem17.base, main_#t~mem17.offset, main_#t~mem18.base, main_#t~mem18.offset, main_#t~mem19.base, main_#t~mem19.offset, main_#t~post20, main_~next~0.base, main_~next~0.offset, main_#t~mem21.base, main_#t~mem21.offset, main_#t~mem22.base, main_#t~mem22.offset, main_#t~mem23.base, main_#t~mem23.offset, main_#t~post24, main_~next~1.base, main_~next~1.offset, main_~#list~0.base, main_~#list~0.offset, main_~length~0;call main_~#list~0.base, main_~#list~0.offset := #Ultimate.allocOnStack(4);call write~init~$Pointer$(0, 0, main_~#list~0.base, main_~#list~0.offset, 4);main_~length~0 := 0; 236#L543-3 append_#in~plist.base, append_#in~plist.offset := main_~#list~0.base, main_~#list~0.offset;havoc append_#t~post5, append_#t~malloc6.base, append_#t~malloc6.offset, append_#t~mem7.base, append_#t~mem7.offset, append_#t~mem8.base, append_#t~mem8.offset, append_#t~ite12.base, append_#t~ite12.offset, append_#t~mem9.base, append_#t~mem9.offset, append_#t~mem10.base, append_#t~mem10.offset, append_#t~malloc11.base, append_#t~malloc11.offset, append_~plist.base, append_~plist.offset, append_~item~0.base, append_~item~0.offset;append_~plist.base, append_~plist.offset := append_#in~plist.base, append_#in~plist.offset;append_#t~post5 := ~c~0;~c~0 := 1 + append_#t~post5;havoc append_#t~post5;call append_#t~malloc6.base, append_#t~malloc6.offset := #Ultimate.allocOnHeap(8);append_~item~0.base, append_~item~0.offset := append_#t~malloc6.base, append_#t~malloc6.offset;havoc append_#t~malloc6.base, append_#t~malloc6.offset;call append_#t~mem7.base, append_#t~mem7.offset := read~$Pointer$(append_~plist.base, append_~plist.offset, 4);call write~$Pointer$(append_#t~mem7.base, append_#t~mem7.offset, append_~item~0.base, append_~item~0.offset, 4);havoc append_#t~mem7.base, append_#t~mem7.offset;call append_#t~mem8.base, append_#t~mem8.offset := read~$Pointer$(append_~item~0.base, append_~item~0.offset, 4); 228#L534 assume !(append_#t~mem8.base != 0 || append_#t~mem8.offset != 0);call append_#t~malloc11.base, append_#t~malloc11.offset := #Ultimate.allocOnHeap(8);append_#t~ite12.base, append_#t~ite12.offset := append_#t~malloc11.base, append_#t~malloc11.offset; 229#L534-2 call write~$Pointer$(append_#t~ite12.base, append_#t~ite12.offset, append_~item~0.base, 4 + append_~item~0.offset, 4);havoc append_#t~mem8.base, append_#t~mem8.offset;havoc append_#t~ite12.base, append_#t~ite12.offset;havoc append_#t~mem9.base, append_#t~mem9.offset;havoc append_#t~mem10.base, append_#t~mem10.offset;havoc append_#t~malloc11.base, append_#t~malloc11.offset;call write~$Pointer$(append_~item~0.base, append_~item~0.offset, append_~plist.base, append_~plist.offset, 4); 223#L529 main_#t~post14 := main_~length~0;main_~length~0 := 1 + main_#t~post14;havoc main_#t~post14; 233#L543-1 assume !(0 != main_#t~nondet13 && ~c~0 < 20);havoc main_#t~nondet13; 237#L543-4 assume main_~length~0 > 0; 231#L548 assume !(main_~length~0 < 0); 232#L548-2 call main_#t~mem17.base, main_#t~mem17.offset := read~$Pointer$(main_~#list~0.base, main_~#list~0.offset, 4);call main_#t~mem18.base, main_#t~mem18.offset := read~$Pointer$(main_#t~mem17.base, main_#t~mem17.offset, 4);main_~next~0.base, main_~next~0.offset := main_#t~mem18.base, main_#t~mem18.offset;havoc main_#t~mem17.base, main_#t~mem17.offset;havoc main_#t~mem18.base, main_#t~mem18.offset;call main_#t~mem19.base, main_#t~mem19.offset := read~$Pointer$(main_~#list~0.base, main_~#list~0.offset, 4);call ULTIMATE.dealloc(main_#t~mem19.base, main_#t~mem19.offset);havoc main_#t~mem19.base, main_#t~mem19.offset;call write~$Pointer$(main_~next~0.base, main_~next~0.offset, main_~#list~0.base, main_~#list~0.offset, 4);main_#t~post20 := main_~length~0;main_~length~0 := main_#t~post20 - 1;havoc main_#t~post20; 235#L556-1 [2021-11-02 22:10:14,696 INFO L793 eck$LassoCheckResult]: Loop: 235#L556-1 assume !!(main_~length~0 > 0);call main_#t~mem21.base, main_#t~mem21.offset := read~$Pointer$(main_~#list~0.base, main_~#list~0.offset, 4);call main_#t~mem22.base, main_#t~mem22.offset := read~$Pointer$(main_#t~mem21.base, main_#t~mem21.offset, 4);main_~next~1.base, main_~next~1.offset := main_#t~mem22.base, main_#t~mem22.offset;havoc main_#t~mem21.base, main_#t~mem21.offset;havoc main_#t~mem22.base, main_#t~mem22.offset;call main_#t~mem23.base, main_#t~mem23.offset := read~$Pointer$(main_~#list~0.base, main_~#list~0.offset, 4);call ULTIMATE.dealloc(main_#t~mem23.base, main_#t~mem23.offset);havoc main_#t~mem23.base, main_#t~mem23.offset;call write~$Pointer$(main_~next~1.base, main_~next~1.offset, main_~#list~0.base, main_~#list~0.offset, 4);main_#t~post24 := main_~length~0;main_~length~0 := main_#t~post24 - 1;havoc main_#t~post24; 235#L556-1 [2021-11-02 22:10:14,696 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-02 22:10:14,697 INFO L85 PathProgramCache]: Analyzing trace with hash -1985702188, now seen corresponding path program 1 times [2021-11-02 22:10:14,697 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-02 22:10:14,697 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [744547287] [2021-11-02 22:10:14,697 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-02 22:10:14,697 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-02 22:10:14,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-02 22:10:14,727 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-02 22:10:14,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-02 22:10:14,769 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-11-02 22:10:14,770 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-02 22:10:14,770 INFO L85 PathProgramCache]: Analyzing trace with hash 76, now seen corresponding path program 2 times [2021-11-02 22:10:14,771 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-02 22:10:14,771 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2114089593] [2021-11-02 22:10:14,771 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-02 22:10:14,771 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-02 22:10:14,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-02 22:10:14,778 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-02 22:10:14,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-02 22:10:14,786 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-11-02 22:10:14,787 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-02 22:10:14,787 INFO L85 PathProgramCache]: Analyzing trace with hash -1427225639, now seen corresponding path program 1 times [2021-11-02 22:10:14,787 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-02 22:10:14,787 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [503433873] [2021-11-02 22:10:14,787 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-02 22:10:14,787 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-02 22:10:14,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-02 22:10:14,841 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-02 22:10:14,842 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-02 22:10:14,842 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [503433873] [2021-11-02 22:10:14,842 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [503433873] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-02 22:10:14,842 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-02 22:10:14,842 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-02 22:10:14,843 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [435779605] [2021-11-02 22:10:15,012 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-02 22:10:15,012 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-02 22:10:15,013 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2021-11-02 22:10:15,013 INFO L87 Difference]: Start difference. First operand 17 states and 21 transitions. cyclomatic complexity: 6 Second operand has 5 states, 4 states have (on average 2.75) internal successors, (11), 5 states have internal predecessors, (11), 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) [2021-11-02 22:10:15,045 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-02 22:10:15,045 INFO L93 Difference]: Finished difference Result 31 states and 37 transitions. [2021-11-02 22:10:15,046 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-02 22:10:15,046 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 31 states and 37 transitions. [2021-11-02 22:10:15,047 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2021-11-02 22:10:15,048 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 31 states to 25 states and 31 transitions. [2021-11-02 22:10:15,048 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 14 [2021-11-02 22:10:15,048 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 14 [2021-11-02 22:10:15,048 INFO L73 IsDeterministic]: Start isDeterministic. Operand 25 states and 31 transitions. [2021-11-02 22:10:15,048 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2021-11-02 22:10:15,048 INFO L681 BuchiCegarLoop]: Abstraction has 25 states and 31 transitions. [2021-11-02 22:10:15,048 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25 states and 31 transitions. [2021-11-02 22:10:15,050 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25 to 17. [2021-11-02 22:10:15,050 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17 states, 17 states have (on average 1.1764705882352942) internal successors, (20), 16 states have internal predecessors, (20), 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) [2021-11-02 22:10:15,050 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 20 transitions. [2021-11-02 22:10:15,050 INFO L704 BuchiCegarLoop]: Abstraction has 17 states and 20 transitions. [2021-11-02 22:10:15,051 INFO L587 BuchiCegarLoop]: Abstraction has 17 states and 20 transitions. [2021-11-02 22:10:15,051 INFO L425 BuchiCegarLoop]: ======== Iteration 5============ [2021-11-02 22:10:15,051 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 17 states and 20 transitions. [2021-11-02 22:10:15,052 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2021-11-02 22:10:15,052 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-11-02 22:10:15,052 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-11-02 22:10:15,053 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1] [2021-11-02 22:10:15,053 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1] [2021-11-02 22:10:15,053 INFO L791 eck$LassoCheckResult]: Stem: 283#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string0.base, #t~string0.offset := #Ultimate.allocOnStack(2);call write~init~int(48, #t~string0.base, #t~string0.offset, 1);call write~init~int(0, #t~string0.base, 1 + #t~string0.offset, 1);call #t~string1.base, #t~string1.offset := #Ultimate.allocOnStack(16);~c~0 := 0; 284#L-1 havoc main_#res;havoc main_#t~post14, main_#t~nondet13, main_#t~mem15.base, main_#t~mem15.offset, main_#t~mem16.base, main_#t~mem16.offset, main_#t~mem17.base, main_#t~mem17.offset, main_#t~mem18.base, main_#t~mem18.offset, main_#t~mem19.base, main_#t~mem19.offset, main_#t~post20, main_~next~0.base, main_~next~0.offset, main_#t~mem21.base, main_#t~mem21.offset, main_#t~mem22.base, main_#t~mem22.offset, main_#t~mem23.base, main_#t~mem23.offset, main_#t~post24, main_~next~1.base, main_~next~1.offset, main_~#list~0.base, main_~#list~0.offset, main_~length~0;call main_~#list~0.base, main_~#list~0.offset := #Ultimate.allocOnStack(4);call write~init~$Pointer$(0, 0, main_~#list~0.base, main_~#list~0.offset, 4);main_~length~0 := 0; 294#L543-3 append_#in~plist.base, append_#in~plist.offset := main_~#list~0.base, main_~#list~0.offset;havoc append_#t~post5, append_#t~malloc6.base, append_#t~malloc6.offset, append_#t~mem7.base, append_#t~mem7.offset, append_#t~mem8.base, append_#t~mem8.offset, append_#t~ite12.base, append_#t~ite12.offset, append_#t~mem9.base, append_#t~mem9.offset, append_#t~mem10.base, append_#t~mem10.offset, append_#t~malloc11.base, append_#t~malloc11.offset, append_~plist.base, append_~plist.offset, append_~item~0.base, append_~item~0.offset;append_~plist.base, append_~plist.offset := append_#in~plist.base, append_#in~plist.offset;append_#t~post5 := ~c~0;~c~0 := 1 + append_#t~post5;havoc append_#t~post5;call append_#t~malloc6.base, append_#t~malloc6.offset := #Ultimate.allocOnHeap(8);append_~item~0.base, append_~item~0.offset := append_#t~malloc6.base, append_#t~malloc6.offset;havoc append_#t~malloc6.base, append_#t~malloc6.offset;call append_#t~mem7.base, append_#t~mem7.offset := read~$Pointer$(append_~plist.base, append_~plist.offset, 4);call write~$Pointer$(append_#t~mem7.base, append_#t~mem7.offset, append_~item~0.base, append_~item~0.offset, 4);havoc append_#t~mem7.base, append_#t~mem7.offset;call append_#t~mem8.base, append_#t~mem8.offset := read~$Pointer$(append_~item~0.base, append_~item~0.offset, 4); 285#L534 assume !(append_#t~mem8.base != 0 || append_#t~mem8.offset != 0);call append_#t~malloc11.base, append_#t~malloc11.offset := #Ultimate.allocOnHeap(8);append_#t~ite12.base, append_#t~ite12.offset := append_#t~malloc11.base, append_#t~malloc11.offset; 280#L534-2 call write~$Pointer$(append_#t~ite12.base, append_#t~ite12.offset, append_~item~0.base, 4 + append_~item~0.offset, 4);havoc append_#t~mem8.base, append_#t~mem8.offset;havoc append_#t~ite12.base, append_#t~ite12.offset;havoc append_#t~mem9.base, append_#t~mem9.offset;havoc append_#t~mem10.base, append_#t~mem10.offset;havoc append_#t~malloc11.base, append_#t~malloc11.offset;call write~$Pointer$(append_~item~0.base, append_~item~0.offset, append_~plist.base, append_~plist.offset, 4); 281#L529 main_#t~post14 := main_~length~0;main_~length~0 := 1 + main_#t~post14;havoc main_#t~post14; 292#L543-1 assume !!(0 != main_#t~nondet13 && ~c~0 < 20);havoc main_#t~nondet13; 296#L543-3 append_#in~plist.base, append_#in~plist.offset := main_~#list~0.base, main_~#list~0.offset;havoc append_#t~post5, append_#t~malloc6.base, append_#t~malloc6.offset, append_#t~mem7.base, append_#t~mem7.offset, append_#t~mem8.base, append_#t~mem8.offset, append_#t~ite12.base, append_#t~ite12.offset, append_#t~mem9.base, append_#t~mem9.offset, append_#t~mem10.base, append_#t~mem10.offset, append_#t~malloc11.base, append_#t~malloc11.offset, append_~plist.base, append_~plist.offset, append_~item~0.base, append_~item~0.offset;append_~plist.base, append_~plist.offset := append_#in~plist.base, append_#in~plist.offset;append_#t~post5 := ~c~0;~c~0 := 1 + append_#t~post5;havoc append_#t~post5;call append_#t~malloc6.base, append_#t~malloc6.offset := #Ultimate.allocOnHeap(8);append_~item~0.base, append_~item~0.offset := append_#t~malloc6.base, append_#t~malloc6.offset;havoc append_#t~malloc6.base, append_#t~malloc6.offset;call append_#t~mem7.base, append_#t~mem7.offset := read~$Pointer$(append_~plist.base, append_~plist.offset, 4);call write~$Pointer$(append_#t~mem7.base, append_#t~mem7.offset, append_~item~0.base, append_~item~0.offset, 4);havoc append_#t~mem7.base, append_#t~mem7.offset;call append_#t~mem8.base, append_#t~mem8.offset := read~$Pointer$(append_~item~0.base, append_~item~0.offset, 4); 286#L534 assume !(append_#t~mem8.base != 0 || append_#t~mem8.offset != 0);call append_#t~malloc11.base, append_#t~malloc11.offset := #Ultimate.allocOnHeap(8);append_#t~ite12.base, append_#t~ite12.offset := append_#t~malloc11.base, append_#t~malloc11.offset; 287#L534-2 call write~$Pointer$(append_#t~ite12.base, append_#t~ite12.offset, append_~item~0.base, 4 + append_~item~0.offset, 4);havoc append_#t~mem8.base, append_#t~mem8.offset;havoc append_#t~ite12.base, append_#t~ite12.offset;havoc append_#t~mem9.base, append_#t~mem9.offset;havoc append_#t~mem10.base, append_#t~mem10.offset;havoc append_#t~malloc11.base, append_#t~malloc11.offset;call write~$Pointer$(append_~item~0.base, append_~item~0.offset, append_~plist.base, append_~plist.offset, 4); 290#L529 main_#t~post14 := main_~length~0;main_~length~0 := 1 + main_#t~post14;havoc main_#t~post14; 291#L543-1 assume !(0 != main_#t~nondet13 && ~c~0 < 20);havoc main_#t~nondet13; 295#L543-4 assume main_~length~0 > 0; 288#L548 assume !(main_~length~0 < 0); 289#L548-2 call main_#t~mem17.base, main_#t~mem17.offset := read~$Pointer$(main_~#list~0.base, main_~#list~0.offset, 4);call main_#t~mem18.base, main_#t~mem18.offset := read~$Pointer$(main_#t~mem17.base, main_#t~mem17.offset, 4);main_~next~0.base, main_~next~0.offset := main_#t~mem18.base, main_#t~mem18.offset;havoc main_#t~mem17.base, main_#t~mem17.offset;havoc main_#t~mem18.base, main_#t~mem18.offset;call main_#t~mem19.base, main_#t~mem19.offset := read~$Pointer$(main_~#list~0.base, main_~#list~0.offset, 4);call ULTIMATE.dealloc(main_#t~mem19.base, main_#t~mem19.offset);havoc main_#t~mem19.base, main_#t~mem19.offset;call write~$Pointer$(main_~next~0.base, main_~next~0.offset, main_~#list~0.base, main_~#list~0.offset, 4);main_#t~post20 := main_~length~0;main_~length~0 := main_#t~post20 - 1;havoc main_#t~post20; 293#L556-1 [2021-11-02 22:10:15,053 INFO L793 eck$LassoCheckResult]: Loop: 293#L556-1 assume !!(main_~length~0 > 0);call main_#t~mem21.base, main_#t~mem21.offset := read~$Pointer$(main_~#list~0.base, main_~#list~0.offset, 4);call main_#t~mem22.base, main_#t~mem22.offset := read~$Pointer$(main_#t~mem21.base, main_#t~mem21.offset, 4);main_~next~1.base, main_~next~1.offset := main_#t~mem22.base, main_#t~mem22.offset;havoc main_#t~mem21.base, main_#t~mem21.offset;havoc main_#t~mem22.base, main_#t~mem22.offset;call main_#t~mem23.base, main_#t~mem23.offset := read~$Pointer$(main_~#list~0.base, main_~#list~0.offset, 4);call ULTIMATE.dealloc(main_#t~mem23.base, main_#t~mem23.offset);havoc main_#t~mem23.base, main_#t~mem23.offset;call write~$Pointer$(main_~next~1.base, main_~next~1.offset, main_~#list~0.base, main_~#list~0.offset, 4);main_#t~post24 := main_~length~0;main_~length~0 := main_#t~post24 - 1;havoc main_#t~post24; 293#L556-1 [2021-11-02 22:10:15,053 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-02 22:10:15,054 INFO L85 PathProgramCache]: Analyzing trace with hash 1723894012, now seen corresponding path program 1 times [2021-11-02 22:10:15,054 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-02 22:10:15,054 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [756991580] [2021-11-02 22:10:15,054 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-02 22:10:15,054 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-02 22:10:15,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-02 22:10:15,100 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 4 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-02 22:10:15,100 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-02 22:10:15,100 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [756991580] [2021-11-02 22:10:15,101 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [756991580] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-02 22:10:15,101 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2000472466] [2021-11-02 22:10:15,101 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-02 22:10:15,101 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-02 22:10:15,101 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_213b1af9-6030-4d19-89ee-25ebe2f01c5b/bin/uautomizer-tBqnrhUYjU/z3 [2021-11-02 22:10:15,106 INFO L229 MonitoredProcess]: Starting monitored process 39 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_213b1af9-6030-4d19-89ee-25ebe2f01c5b/bin/uautomizer-tBqnrhUYjU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-02 22:10:15,124 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_213b1af9-6030-4d19-89ee-25ebe2f01c5b/bin/uautomizer-tBqnrhUYjU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (39)] Waiting until timeout for monitored process [2021-11-02 22:10:15,225 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_213b1af9-6030-4d19-89ee-25ebe2f01c5b/bin/uautomizer-tBqnrhUYjU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (38)] Forceful destruction successful, exit code 0 [2021-11-02 22:10:15,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-02 22:10:15,232 INFO L263 TraceCheckSpWp]: Trace formula consists of 192 conjuncts, 25 conjunts are in the unsatisfiable core [2021-11-02 22:10:15,233 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-02 22:10:15,340 INFO L354 Elim1Store]: treesize reduction 21, result has 47.5 percent of original size [2021-11-02 22:10:15,341 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 1 case distinctions, treesize of input 36 treesize of output 31 [2021-11-02 22:10:15,390 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 8 [2021-11-02 22:10:15,403 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 4 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-02 22:10:15,404 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2000472466] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-02 22:10:15,404 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-11-02 22:10:15,404 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 6] total 8 [2021-11-02 22:10:15,404 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1764806553] [2021-11-02 22:10:15,405 INFO L796 eck$LassoCheckResult]: stem already infeasible [2021-11-02 22:10:15,405 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-02 22:10:15,405 INFO L85 PathProgramCache]: Analyzing trace with hash 76, now seen corresponding path program 3 times [2021-11-02 22:10:15,405 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-02 22:10:15,405 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [621617273] [2021-11-02 22:10:15,406 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-02 22:10:15,406 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-02 22:10:15,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-02 22:10:15,410 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-02 22:10:15,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-02 22:10:15,415 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-11-02 22:10:15,570 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-02 22:10:15,571 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-11-02 22:10:15,571 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2021-11-02 22:10:15,571 INFO L87 Difference]: Start difference. First operand 17 states and 20 transitions. cyclomatic complexity: 5 Second operand has 8 states, 8 states have (on average 2.75) internal successors, (22), 8 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 22:10:15,629 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-02 22:10:15,629 INFO L93 Difference]: Finished difference Result 17 states and 18 transitions. [2021-11-02 22:10:15,630 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-02 22:10:15,630 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 17 states and 18 transitions. [2021-11-02 22:10:15,631 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2021-11-02 22:10:15,631 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 17 states to 17 states and 18 transitions. [2021-11-02 22:10:15,631 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 12 [2021-11-02 22:10:15,631 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 12 [2021-11-02 22:10:15,631 INFO L73 IsDeterministic]: Start isDeterministic. Operand 17 states and 18 transitions. [2021-11-02 22:10:15,631 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2021-11-02 22:10:15,632 INFO L681 BuchiCegarLoop]: Abstraction has 17 states and 18 transitions. [2021-11-02 22:10:15,632 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17 states and 18 transitions. [2021-11-02 22:10:15,633 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17 to 17. [2021-11-02 22:10:15,633 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17 states, 17 states have (on average 1.0588235294117647) internal successors, (18), 16 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) [2021-11-02 22:10:15,633 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 18 transitions. [2021-11-02 22:10:15,633 INFO L704 BuchiCegarLoop]: Abstraction has 17 states and 18 transitions. [2021-11-02 22:10:15,633 INFO L587 BuchiCegarLoop]: Abstraction has 17 states and 18 transitions. [2021-11-02 22:10:15,633 INFO L425 BuchiCegarLoop]: ======== Iteration 6============ [2021-11-02 22:10:15,633 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 17 states and 18 transitions. [2021-11-02 22:10:15,634 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2021-11-02 22:10:15,634 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-11-02 22:10:15,634 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-11-02 22:10:15,634 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-02 22:10:15,634 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1] [2021-11-02 22:10:15,635 INFO L791 eck$LassoCheckResult]: Stem: 375#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string0.base, #t~string0.offset := #Ultimate.allocOnStack(2);call write~init~int(48, #t~string0.base, #t~string0.offset, 1);call write~init~int(0, #t~string0.base, 1 + #t~string0.offset, 1);call #t~string1.base, #t~string1.offset := #Ultimate.allocOnStack(16);~c~0 := 0; 376#L-1 havoc main_#res;havoc main_#t~post14, main_#t~nondet13, main_#t~mem15.base, main_#t~mem15.offset, main_#t~mem16.base, main_#t~mem16.offset, main_#t~mem17.base, main_#t~mem17.offset, main_#t~mem18.base, main_#t~mem18.offset, main_#t~mem19.base, main_#t~mem19.offset, main_#t~post20, main_~next~0.base, main_~next~0.offset, main_#t~mem21.base, main_#t~mem21.offset, main_#t~mem22.base, main_#t~mem22.offset, main_#t~mem23.base, main_#t~mem23.offset, main_#t~post24, main_~next~1.base, main_~next~1.offset, main_~#list~0.base, main_~#list~0.offset, main_~length~0;call main_~#list~0.base, main_~#list~0.offset := #Ultimate.allocOnStack(4);call write~init~$Pointer$(0, 0, main_~#list~0.base, main_~#list~0.offset, 4);main_~length~0 := 0; 385#L543-3 append_#in~plist.base, append_#in~plist.offset := main_~#list~0.base, main_~#list~0.offset;havoc append_#t~post5, append_#t~malloc6.base, append_#t~malloc6.offset, append_#t~mem7.base, append_#t~mem7.offset, append_#t~mem8.base, append_#t~mem8.offset, append_#t~ite12.base, append_#t~ite12.offset, append_#t~mem9.base, append_#t~mem9.offset, append_#t~mem10.base, append_#t~mem10.offset, append_#t~malloc11.base, append_#t~malloc11.offset, append_~plist.base, append_~plist.offset, append_~item~0.base, append_~item~0.offset;append_~plist.base, append_~plist.offset := append_#in~plist.base, append_#in~plist.offset;append_#t~post5 := ~c~0;~c~0 := 1 + append_#t~post5;havoc append_#t~post5;call append_#t~malloc6.base, append_#t~malloc6.offset := #Ultimate.allocOnHeap(8);append_~item~0.base, append_~item~0.offset := append_#t~malloc6.base, append_#t~malloc6.offset;havoc append_#t~malloc6.base, append_#t~malloc6.offset;call append_#t~mem7.base, append_#t~mem7.offset := read~$Pointer$(append_~plist.base, append_~plist.offset, 4);call write~$Pointer$(append_#t~mem7.base, append_#t~mem7.offset, append_~item~0.base, append_~item~0.offset, 4);havoc append_#t~mem7.base, append_#t~mem7.offset;call append_#t~mem8.base, append_#t~mem8.offset := read~$Pointer$(append_~item~0.base, append_~item~0.offset, 4); 377#L534 assume !(append_#t~mem8.base != 0 || append_#t~mem8.offset != 0);call append_#t~malloc11.base, append_#t~malloc11.offset := #Ultimate.allocOnHeap(8);append_#t~ite12.base, append_#t~ite12.offset := append_#t~malloc11.base, append_#t~malloc11.offset; 378#L534-2 call write~$Pointer$(append_#t~ite12.base, append_#t~ite12.offset, append_~item~0.base, 4 + append_~item~0.offset, 4);havoc append_#t~mem8.base, append_#t~mem8.offset;havoc append_#t~ite12.base, append_#t~ite12.offset;havoc append_#t~mem9.base, append_#t~mem9.offset;havoc append_#t~mem10.base, append_#t~mem10.offset;havoc append_#t~malloc11.base, append_#t~malloc11.offset;call write~$Pointer$(append_~item~0.base, append_~item~0.offset, append_~plist.base, append_~plist.offset, 4); 374#L529 main_#t~post14 := main_~length~0;main_~length~0 := 1 + main_#t~post14;havoc main_#t~post14; 383#L543-1 assume !!(0 != main_#t~nondet13 && ~c~0 < 20);havoc main_#t~nondet13; 387#L543-3 append_#in~plist.base, append_#in~plist.offset := main_~#list~0.base, main_~#list~0.offset;havoc append_#t~post5, append_#t~malloc6.base, append_#t~malloc6.offset, append_#t~mem7.base, append_#t~mem7.offset, append_#t~mem8.base, append_#t~mem8.offset, append_#t~ite12.base, append_#t~ite12.offset, append_#t~mem9.base, append_#t~mem9.offset, append_#t~mem10.base, append_#t~mem10.offset, append_#t~malloc11.base, append_#t~malloc11.offset, append_~plist.base, append_~plist.offset, append_~item~0.base, append_~item~0.offset;append_~plist.base, append_~plist.offset := append_#in~plist.base, append_#in~plist.offset;append_#t~post5 := ~c~0;~c~0 := 1 + append_#t~post5;havoc append_#t~post5;call append_#t~malloc6.base, append_#t~malloc6.offset := #Ultimate.allocOnHeap(8);append_~item~0.base, append_~item~0.offset := append_#t~malloc6.base, append_#t~malloc6.offset;havoc append_#t~malloc6.base, append_#t~malloc6.offset;call append_#t~mem7.base, append_#t~mem7.offset := read~$Pointer$(append_~plist.base, append_~plist.offset, 4);call write~$Pointer$(append_#t~mem7.base, append_#t~mem7.offset, append_~item~0.base, append_~item~0.offset, 4);havoc append_#t~mem7.base, append_#t~mem7.offset;call append_#t~mem8.base, append_#t~mem8.offset := read~$Pointer$(append_~item~0.base, append_~item~0.offset, 4); 379#L534 assume append_#t~mem8.base != 0 || append_#t~mem8.offset != 0;call append_#t~mem9.base, append_#t~mem9.offset := read~$Pointer$(append_~item~0.base, append_~item~0.offset, 4);call append_#t~mem10.base, append_#t~mem10.offset := read~$Pointer$(append_#t~mem9.base, 4 + append_#t~mem9.offset, 4);append_#t~ite12.base, append_#t~ite12.offset := append_#t~mem10.base, append_#t~mem10.offset; 371#L534-2 call write~$Pointer$(append_#t~ite12.base, append_#t~ite12.offset, append_~item~0.base, 4 + append_~item~0.offset, 4);havoc append_#t~mem8.base, append_#t~mem8.offset;havoc append_#t~ite12.base, append_#t~ite12.offset;havoc append_#t~mem9.base, append_#t~mem9.offset;havoc append_#t~mem10.base, append_#t~mem10.offset;havoc append_#t~malloc11.base, append_#t~malloc11.offset;call write~$Pointer$(append_~item~0.base, append_~item~0.offset, append_~plist.base, append_~plist.offset, 4); 372#L529 main_#t~post14 := main_~length~0;main_~length~0 := 1 + main_#t~post14;havoc main_#t~post14; 382#L543-1 assume !(0 != main_#t~nondet13 && ~c~0 < 20);havoc main_#t~nondet13; 386#L543-4 assume main_~length~0 > 0; 380#L548 assume !(main_~length~0 < 0); 381#L548-2 call main_#t~mem17.base, main_#t~mem17.offset := read~$Pointer$(main_~#list~0.base, main_~#list~0.offset, 4);call main_#t~mem18.base, main_#t~mem18.offset := read~$Pointer$(main_#t~mem17.base, main_#t~mem17.offset, 4);main_~next~0.base, main_~next~0.offset := main_#t~mem18.base, main_#t~mem18.offset;havoc main_#t~mem17.base, main_#t~mem17.offset;havoc main_#t~mem18.base, main_#t~mem18.offset;call main_#t~mem19.base, main_#t~mem19.offset := read~$Pointer$(main_~#list~0.base, main_~#list~0.offset, 4);call ULTIMATE.dealloc(main_#t~mem19.base, main_#t~mem19.offset);havoc main_#t~mem19.base, main_#t~mem19.offset;call write~$Pointer$(main_~next~0.base, main_~next~0.offset, main_~#list~0.base, main_~#list~0.offset, 4);main_#t~post20 := main_~length~0;main_~length~0 := main_#t~post20 - 1;havoc main_#t~post20; 384#L556-1 [2021-11-02 22:10:15,635 INFO L793 eck$LassoCheckResult]: Loop: 384#L556-1 assume !!(main_~length~0 > 0);call main_#t~mem21.base, main_#t~mem21.offset := read~$Pointer$(main_~#list~0.base, main_~#list~0.offset, 4);call main_#t~mem22.base, main_#t~mem22.offset := read~$Pointer$(main_#t~mem21.base, main_#t~mem21.offset, 4);main_~next~1.base, main_~next~1.offset := main_#t~mem22.base, main_#t~mem22.offset;havoc main_#t~mem21.base, main_#t~mem21.offset;havoc main_#t~mem22.base, main_#t~mem22.offset;call main_#t~mem23.base, main_#t~mem23.offset := read~$Pointer$(main_~#list~0.base, main_~#list~0.offset, 4);call ULTIMATE.dealloc(main_#t~mem23.base, main_#t~mem23.offset);havoc main_#t~mem23.base, main_#t~mem23.offset;call write~$Pointer$(main_~next~1.base, main_~next~1.offset, main_~#list~0.base, main_~#list~0.offset, 4);main_#t~post24 := main_~length~0;main_~length~0 := main_#t~post24 - 1;havoc main_#t~post24; 384#L556-1 [2021-11-02 22:10:15,635 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-02 22:10:15,635 INFO L85 PathProgramCache]: Analyzing trace with hash -51113350, now seen corresponding path program 1 times [2021-11-02 22:10:15,635 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-02 22:10:15,635 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [931709677] [2021-11-02 22:10:15,635 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-02 22:10:15,636 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-02 22:10:15,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-02 22:10:15,693 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-02 22:10:15,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-02 22:10:15,754 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-11-02 22:10:15,755 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-02 22:10:15,755 INFO L85 PathProgramCache]: Analyzing trace with hash 76, now seen corresponding path program 4 times [2021-11-02 22:10:15,755 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-02 22:10:15,755 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2014778952] [2021-11-02 22:10:15,755 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-02 22:10:15,756 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-02 22:10:15,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-02 22:10:15,761 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-02 22:10:15,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-02 22:10:15,766 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-11-02 22:10:15,766 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-02 22:10:15,766 INFO L85 PathProgramCache]: Analyzing trace with hash -1584513805, now seen corresponding path program 1 times [2021-11-02 22:10:15,767 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-02 22:10:15,767 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1259849850] [2021-11-02 22:10:15,767 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-02 22:10:15,767 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-02 22:10:15,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-02 22:10:15,824 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-02 22:10:15,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-02 22:10:15,876 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-11-02 22:10:40,104 WARN L207 SmtUtils]: Spent 24.07 s on a formula simplification. DAG size of input: 387 DAG size of output: 315 [2021-11-02 22:10:47,492 INFO L210 LassoAnalysis]: Preferences: [2021-11-02 22:10:47,492 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-11-02 22:10:47,492 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-11-02 22:10:47,493 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-11-02 22:10:47,494 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2021-11-02 22:10:47,494 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-02 22:10:47,494 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-11-02 22:10:47,494 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-11-02 22:10:47,494 INFO L133 ssoRankerPreferences]: Filename of dumped script: test-0232_1-1.i_Iteration6_Lasso [2021-11-02 22:10:47,494 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-11-02 22:10:47,494 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-11-02 22:10:47,507 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-02 22:10:47,511 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-02 22:10:47,513 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-02 22:10:47,515 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-02 22:10:47,519 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-02 22:10:47,521 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-02 22:10:47,523 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-02 22:10:47,524 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-02 22:10:47,526 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-02 22:10:48,978 FATAL L? ?]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer has thrown an exception: java.lang.AssertionError: MapEliminator tries to combine Int and (Array Int Int) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.mapelimination.MapEliminator.indexEqualityInequalityImpliesValueEquality(MapEliminator.java:850) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.mapelimination.MapEliminator.replaceSelectStoreTerm(MapEliminator.java:592) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.mapelimination.MapEliminator.replaceStoreTerms(MapEliminator.java:542) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.mapelimination.MapEliminator.getRewrittenTransFormula(MapEliminator.java:330) at de.uni_freiburg.informatik.ultimate.lassoranker.preprocessors.MapEliminationLassoPreprocessor.process(MapEliminationLassoPreprocessor.java:109) at de.uni_freiburg.informatik.ultimate.lassoranker.variables.LassoBuilder.applyPreprocessor(LassoBuilder.java:154) at de.uni_freiburg.informatik.ultimate.lassoranker.variables.LassoBuilder.preprocess(LassoBuilder.java:262) at de.uni_freiburg.informatik.ultimate.lassoranker.LassoAnalysis.preprocess(LassoAnalysis.java:280) at de.uni_freiburg.informatik.ultimate.lassoranker.LassoAnalysis.(LassoAnalysis.java:229) at de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.LassoCheck.synthesize(LassoCheck.java:609) at de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.LassoCheck$LassoCheckResult.checkLassoTermination(LassoCheck.java:953) at de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.LassoCheck$LassoCheckResult.(LassoCheck.java:862) at de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.LassoCheck.(LassoCheck.java:252) at de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiCegarLoop.iterate(BuchiCegarLoop.java:457) at de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver.doTerminationAnalysis(BuchiAutomizerObserver.java:143) at de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver.finish(BuchiAutomizerObserver.java:398) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:168) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:320) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) [2021-11-02 22:10:48,980 INFO L168 Benchmark]: Toolchain (without parser) took 54107.52 ms. Allocated memory was 96.5 MB in the beginning and 226.5 MB in the end (delta: 130.0 MB). Free memory was 61.0 MB in the beginning and 104.2 MB in the end (delta: -43.2 MB). Peak memory consumption was 133.2 MB. Max. memory is 16.1 GB. [2021-11-02 22:10:48,981 INFO L168 Benchmark]: CDTParser took 0.25 ms. Allocated memory is still 96.5 MB. Free memory is still 50.8 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-11-02 22:10:48,981 INFO L168 Benchmark]: CACSL2BoogieTranslator took 441.22 ms. Allocated memory was 96.5 MB in the beginning and 117.4 MB in the end (delta: 21.0 MB). Free memory was 60.7 MB in the beginning and 85.3 MB in the end (delta: -24.6 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2021-11-02 22:10:48,981 INFO L168 Benchmark]: Boogie Procedure Inliner took 49.15 ms. Allocated memory is still 117.4 MB. Free memory was 85.3 MB in the beginning and 83.7 MB in the end (delta: 1.6 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-11-02 22:10:48,982 INFO L168 Benchmark]: Boogie Preprocessor took 28.79 ms. Allocated memory is still 117.4 MB. Free memory was 83.2 MB in the beginning and 82.2 MB in the end (delta: 950.2 kB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-11-02 22:10:48,982 INFO L168 Benchmark]: RCFGBuilder took 372.88 ms. Allocated memory is still 117.4 MB. Free memory was 81.7 MB in the beginning and 68.6 MB in the end (delta: 13.1 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. [2021-11-02 22:10:48,983 INFO L168 Benchmark]: BuchiAutomizer took 53210.46 ms. Allocated memory was 117.4 MB in the beginning and 226.5 MB in the end (delta: 109.1 MB). Free memory was 68.6 MB in the beginning and 104.2 MB in the end (delta: -35.6 MB). Peak memory consumption was 123.3 MB. Max. memory is 16.1 GB. [2021-11-02 22:10:48,984 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.25 ms. Allocated memory is still 96.5 MB. Free memory is still 50.8 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 441.22 ms. Allocated memory was 96.5 MB in the beginning and 117.4 MB in the end (delta: 21.0 MB). Free memory was 60.7 MB in the beginning and 85.3 MB in the end (delta: -24.6 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 49.15 ms. Allocated memory is still 117.4 MB. Free memory was 85.3 MB in the beginning and 83.7 MB in the end (delta: 1.6 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 28.79 ms. Allocated memory is still 117.4 MB. Free memory was 83.2 MB in the beginning and 82.2 MB in the end (delta: 950.2 kB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 372.88 ms. Allocated memory is still 117.4 MB. Free memory was 81.7 MB in the beginning and 68.6 MB in the end (delta: 13.1 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. * BuchiAutomizer took 53210.46 ms. Allocated memory was 117.4 MB in the beginning and 226.5 MB in the end (delta: 109.1 MB). Free memory was 68.6 MB in the beginning and 104.2 MB in the end (delta: -35.6 MB). Peak memory consumption was 123.3 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer: - ExceptionOrErrorResult: AssertionError: MapEliminator tries to combine Int and (Array Int Int) de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer: AssertionError: MapEliminator tries to combine Int and (Array Int Int): de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.mapelimination.MapEliminator.indexEqualityInequalityImpliesValueEquality(MapEliminator.java:850) RESULT: Ultimate could not prove your program: Toolchain returned no result. [2021-11-02 22:10:49,034 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_213b1af9-6030-4d19-89ee-25ebe2f01c5b/bin/uautomizer-tBqnrhUYjU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (39)] Forceful destruction successful, exit code 0 [2021-11-02 22:10:49,238 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_213b1af9-6030-4d19-89ee-25ebe2f01c5b/bin/uautomizer-tBqnrhUYjU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis No suitable file found in config dir /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_213b1af9-6030-4d19-89ee-25ebe2f01c5b/bin/uautomizer-tBqnrhUYjU/config using search string *Termination*32bit*_Bitvector*.epf No suitable settings file found using Termination*32bit*_Bitvector ERROR: UNSUPPORTED PROPERTY Writing output log to file Ultimate.log Result: ERROR: ExceptionOrErrorResult: AssertionError: MapEliminator tries to combine Int and (Array Int Int)