./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/ldv-memsafety/memleaks_test18.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version b2eff8ba Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a8afc68-0330-4f74-b825-0d332d587047/bin/uautomizer-GMMbpWq8iD/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a8afc68-0330-4f74-b825-0d332d587047/bin/uautomizer-GMMbpWq8iD/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a8afc68-0330-4f74-b825-0d332d587047/bin/uautomizer-GMMbpWq8iD/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a8afc68-0330-4f74-b825-0d332d587047/bin/uautomizer-GMMbpWq8iD/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/ldv-memsafety/memleaks_test18.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a8afc68-0330-4f74-b825-0d332d587047/bin/uautomizer-GMMbpWq8iD/config/svcomp-Termination-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a8afc68-0330-4f74-b825-0d332d587047/bin/uautomizer-GMMbpWq8iD --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(F end) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 98678a21a2b37b871d00192aacebe14c4ee9cc87b75400dd7a4adc0ccfa93151 ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.2.1-dev-b2eff8b [2021-10-28 23:25:11,484 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-28 23:25:11,487 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-28 23:25:11,529 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-28 23:25:11,530 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-28 23:25:11,532 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-28 23:25:11,533 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-28 23:25:11,536 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-28 23:25:11,538 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-28 23:25:11,540 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-28 23:25:11,541 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-28 23:25:11,542 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-28 23:25:11,543 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-28 23:25:11,544 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-28 23:25:11,546 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-28 23:25:11,548 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-28 23:25:11,549 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-28 23:25:11,551 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-28 23:25:11,553 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-28 23:25:11,556 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-28 23:25:11,558 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-28 23:25:11,561 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-28 23:25:11,567 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-28 23:25:11,568 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-28 23:25:11,574 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-28 23:25:11,581 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-28 23:25:11,582 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-28 23:25:11,583 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-28 23:25:11,584 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-28 23:25:11,585 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-28 23:25:11,587 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-28 23:25:11,588 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-28 23:25:11,590 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-28 23:25:11,591 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-28 23:25:11,593 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-28 23:25:11,594 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-28 23:25:11,596 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-28 23:25:11,597 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-28 23:25:11,598 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-28 23:25:11,599 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-28 23:25:11,600 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-28 23:25:11,604 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a8afc68-0330-4f74-b825-0d332d587047/bin/uautomizer-GMMbpWq8iD/config/svcomp-Termination-32bit-Automizer_Default.epf [2021-10-28 23:25:11,653 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-28 23:25:11,659 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-28 23:25:11,660 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-10-28 23:25:11,660 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-10-28 23:25:11,661 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-10-28 23:25:11,662 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-10-28 23:25:11,662 INFO L138 SettingsManager]: * Use SBE=true [2021-10-28 23:25:11,662 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2021-10-28 23:25:11,662 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2021-10-28 23:25:11,663 INFO L138 SettingsManager]: * Use old map elimination=false [2021-10-28 23:25:11,664 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2021-10-28 23:25:11,664 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2021-10-28 23:25:11,664 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2021-10-28 23:25:11,665 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-28 23:25:11,665 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-28 23:25:11,666 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-10-28 23:25:11,666 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-28 23:25:11,666 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-28 23:25:11,666 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-28 23:25:11,666 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2021-10-28 23:25:11,667 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2021-10-28 23:25:11,667 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2021-10-28 23:25:11,667 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-28 23:25:11,667 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-28 23:25:11,668 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2021-10-28 23:25:11,668 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-28 23:25:11,670 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2021-10-28 23:25:11,670 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-28 23:25:11,670 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-10-28 23:25:11,671 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-28 23:25:11,671 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-10-28 23:25:11,671 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-28 23:25:11,672 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2021-10-28 23:25:11,673 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_6a8afc68-0330-4f74-b825-0d332d587047/bin/uautomizer-GMMbpWq8iD/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a8afc68-0330-4f74-b825-0d332d587047/bin/uautomizer-GMMbpWq8iD Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 98678a21a2b37b871d00192aacebe14c4ee9cc87b75400dd7a4adc0ccfa93151 [2021-10-28 23:25:11,910 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-28 23:25:11,943 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-28 23:25:11,946 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-28 23:25:11,947 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-28 23:25:11,949 INFO L275 PluginConnector]: CDTParser initialized [2021-10-28 23:25:11,950 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a8afc68-0330-4f74-b825-0d332d587047/bin/uautomizer-GMMbpWq8iD/../../sv-benchmarks/c/ldv-memsafety/memleaks_test18.i [2021-10-28 23:25:12,021 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a8afc68-0330-4f74-b825-0d332d587047/bin/uautomizer-GMMbpWq8iD/data/4dabea3ff/61f19b8f4c954d4cb5599902a94cc274/FLAG04de88db0 [2021-10-28 23:25:12,580 INFO L306 CDTParser]: Found 1 translation units. [2021-10-28 23:25:12,580 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a8afc68-0330-4f74-b825-0d332d587047/sv-benchmarks/c/ldv-memsafety/memleaks_test18.i [2021-10-28 23:25:12,596 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a8afc68-0330-4f74-b825-0d332d587047/bin/uautomizer-GMMbpWq8iD/data/4dabea3ff/61f19b8f4c954d4cb5599902a94cc274/FLAG04de88db0 [2021-10-28 23:25:12,870 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a8afc68-0330-4f74-b825-0d332d587047/bin/uautomizer-GMMbpWq8iD/data/4dabea3ff/61f19b8f4c954d4cb5599902a94cc274 [2021-10-28 23:25:12,873 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-28 23:25:12,874 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-28 23:25:12,876 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-28 23:25:12,876 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-28 23:25:12,880 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-28 23:25:12,881 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.10 11:25:12" (1/1) ... [2021-10-28 23:25:12,883 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2c70f885 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:25:12, skipping insertion in model container [2021-10-28 23:25:12,883 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.10 11:25:12" (1/1) ... [2021-10-28 23:25:12,899 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-28 23:25:12,942 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-28 23:25:13,352 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-28 23:25:13,379 INFO L203 MainTranslator]: Completed pre-run [2021-10-28 23:25:13,466 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-28 23:25:13,510 INFO L208 MainTranslator]: Completed translation [2021-10-28 23:25:13,510 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:25:13 WrapperNode [2021-10-28 23:25:13,511 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-28 23:25:13,512 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-28 23:25:13,512 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-28 23:25:13,512 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-28 23:25:13,520 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:25:13" (1/1) ... [2021-10-28 23:25:13,540 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:25:13" (1/1) ... [2021-10-28 23:25:13,562 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-28 23:25:13,562 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-28 23:25:13,563 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-28 23:25:13,563 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-28 23:25:13,573 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:25:13" (1/1) ... [2021-10-28 23:25:13,573 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:25:13" (1/1) ... [2021-10-28 23:25:13,581 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:25:13" (1/1) ... [2021-10-28 23:25:13,583 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:25:13" (1/1) ... [2021-10-28 23:25:13,591 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:25:13" (1/1) ... [2021-10-28 23:25:13,607 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:25:13" (1/1) ... [2021-10-28 23:25:13,611 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:25:13" (1/1) ... [2021-10-28 23:25:13,620 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-28 23:25:13,621 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-28 23:25:13,621 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-28 23:25:13,621 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-28 23:25:13,622 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:25:13" (1/1) ... [2021-10-28 23:25:13,641 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:25:13,654 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a8afc68-0330-4f74-b825-0d332d587047/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:25:13,667 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a8afc68-0330-4f74-b825-0d332d587047/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:25:13,687 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a8afc68-0330-4f74-b825-0d332d587047/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2021-10-28 23:25:13,728 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-10-28 23:25:13,729 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-10-28 23:25:13,729 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-28 23:25:13,729 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-10-28 23:25:13,729 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-10-28 23:25:13,729 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-10-28 23:25:13,730 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-28 23:25:13,730 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-28 23:25:13,995 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-28 23:25:13,996 INFO L299 CfgBuilder]: Removed 12 assume(true) statements. [2021-10-28 23:25:13,997 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.10 11:25:13 BoogieIcfgContainer [2021-10-28 23:25:13,997 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-28 23:25:13,998 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2021-10-28 23:25:13,999 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2021-10-28 23:25:14,002 INFO L275 PluginConnector]: BuchiAutomizer initialized [2021-10-28 23:25:14,003 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-10-28 23:25:14,003 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 28.10 11:25:12" (1/3) ... [2021-10-28 23:25:14,004 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@6801e3c2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 28.10 11:25:14, skipping insertion in model container [2021-10-28 23:25:14,004 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-10-28 23:25:14,005 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:25:13" (2/3) ... [2021-10-28 23:25:14,005 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@6801e3c2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 28.10 11:25:14, skipping insertion in model container [2021-10-28 23:25:14,005 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-10-28 23:25:14,005 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.10 11:25:13" (3/3) ... [2021-10-28 23:25:14,007 INFO L389 chiAutomizerObserver]: Analyzing ICFG memleaks_test18.i [2021-10-28 23:25:14,085 INFO L359 BuchiCegarLoop]: Interprodecural is true [2021-10-28 23:25:14,085 INFO L360 BuchiCegarLoop]: Hoare is false [2021-10-28 23:25:14,085 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2021-10-28 23:25:14,085 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2021-10-28 23:25:14,085 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-10-28 23:25:14,086 INFO L364 BuchiCegarLoop]: Difference is false [2021-10-28 23:25:14,086 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-10-28 23:25:14,086 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2021-10-28 23:25:14,105 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 16 states, 15 states have (on average 1.5333333333333334) internal successors, (23), 15 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 23:25:14,126 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 7 [2021-10-28 23:25:14,127 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-28 23:25:14,127 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-28 23:25:14,133 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1] [2021-10-28 23:25:14,133 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1] [2021-10-28 23:25:14,133 INFO L425 BuchiCegarLoop]: ======== Iteration 1============ [2021-10-28 23:25:14,134 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 16 states, 15 states have (on average 1.5333333333333334) internal successors, (23), 15 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 23:25:14,137 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 7 [2021-10-28 23:25:14,137 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-28 23:25:14,137 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-28 23:25:14,138 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1] [2021-10-28 23:25:14,139 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1] [2021-10-28 23:25:14,143 INFO L791 eck$LassoCheckResult]: Stem: 4#ULTIMATE.startENTRYtrue #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call ~#ldv_global_msg_list~0.base, ~#ldv_global_msg_list~0.offset := #Ultimate.allocOnStack(8);call write~init~$Pointer$(~#ldv_global_msg_list~0.base, ~#ldv_global_msg_list~0.offset, ~#ldv_global_msg_list~0.base, ~#ldv_global_msg_list~0.offset, 4);call write~init~$Pointer$(~#ldv_global_msg_list~0.base, ~#ldv_global_msg_list~0.offset, ~#ldv_global_msg_list~0.base, 4 + ~#ldv_global_msg_list~0.offset, 4); 9#L-1true havoc entry_point_#t~ret38.base, entry_point_#t~ret38.offset, entry_point_#t~ret40.base, entry_point_#t~ret40.offset, entry_point_#t~post39, entry_point_#t~mem42.base, entry_point_#t~mem42.offset, entry_point_#t~post41, entry_point_~p~0.base, entry_point_~p~0.offset, entry_point_~i~0, entry_point_~j~0, entry_point_~len~0, entry_point_~array~0.base, entry_point_~array~0.offset;entry_point_~len~0 := 10;ldv_malloc_#in~size := 4 * entry_point_~len~0;havoc ldv_malloc_#res.base, ldv_malloc_#res.offset;havoc ldv_malloc_#t~nondet11, ldv_malloc_#t~malloc12.base, ldv_malloc_#t~malloc12.offset, ldv_malloc_~size;ldv_malloc_~size := ldv_malloc_#in~size; 14#L526true assume !(0 != ldv_malloc_#t~nondet11);havoc ldv_malloc_#t~nondet11;ldv_malloc_#res.base, ldv_malloc_#res.offset := 0, 0; 8#L529true entry_point_#t~ret38.base, entry_point_#t~ret38.offset := ldv_malloc_#res.base, ldv_malloc_#res.offset;entry_point_~array~0.base, entry_point_~array~0.offset := entry_point_#t~ret38.base, entry_point_#t~ret38.offset;havoc entry_point_#t~ret38.base, entry_point_#t~ret38.offset; 6#L763true assume entry_point_~array~0.base != 0 || entry_point_~array~0.offset != 0;havoc entry_point_~p~0.base, entry_point_~p~0.offset;entry_point_~i~0 := 0;havoc entry_point_~j~0; 11#L767-3true [2021-10-28 23:25:14,145 INFO L793 eck$LassoCheckResult]: Loop: 11#L767-3true assume !!(entry_point_~i~0 < entry_point_~len~0);ldv_malloc_#in~size := 4;havoc ldv_malloc_#res.base, ldv_malloc_#res.offset;havoc ldv_malloc_#t~nondet11, ldv_malloc_#t~malloc12.base, ldv_malloc_#t~malloc12.offset, ldv_malloc_~size;ldv_malloc_~size := ldv_malloc_#in~size; 16#L526-1true assume 0 != ldv_malloc_#t~nondet11;havoc ldv_malloc_#t~nondet11;call ldv_malloc_#t~malloc12.base, ldv_malloc_#t~malloc12.offset := #Ultimate.allocOnHeap(ldv_malloc_~size);ldv_malloc_#res.base, ldv_malloc_#res.offset := ldv_malloc_#t~malloc12.base, ldv_malloc_#t~malloc12.offset;havoc ldv_malloc_#t~malloc12.base, ldv_malloc_#t~malloc12.offset; 17#L529-1true entry_point_#t~ret40.base, entry_point_#t~ret40.offset := ldv_malloc_#res.base, ldv_malloc_#res.offset;entry_point_~p~0.base, entry_point_~p~0.offset := entry_point_#t~ret40.base, entry_point_#t~ret40.offset;havoc entry_point_#t~ret40.base, entry_point_#t~ret40.offset; 15#L769true assume !(entry_point_~p~0.base == 0 && entry_point_~p~0.offset == 0);call write~$Pointer$(entry_point_~p~0.base, entry_point_~p~0.offset, entry_point_~array~0.base, entry_point_~array~0.offset + 4 * entry_point_~i~0, 4); 13#L767-2true entry_point_#t~post39 := entry_point_~i~0;entry_point_~i~0 := 1 + entry_point_#t~post39;havoc entry_point_#t~post39; 11#L767-3true [2021-10-28 23:25:14,157 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:25:14,157 INFO L85 PathProgramCache]: Analyzing trace with hash 28695751, now seen corresponding path program 1 times [2021-10-28 23:25:14,188 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 23:25:14,190 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1476882239] [2021-10-28 23:25:14,190 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:25:14,191 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 23:25:14,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:25:14,429 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 23:25:14,430 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 23:25:14,430 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1476882239] [2021-10-28 23:25:14,431 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1476882239] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-28 23:25:14,431 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-28 23:25:14,431 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-28 23:25:14,433 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1097681042] [2021-10-28 23:25:14,437 INFO L796 eck$LassoCheckResult]: stem already infeasible [2021-10-28 23:25:14,438 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:25:14,438 INFO L85 PathProgramCache]: Analyzing trace with hash 47811737, now seen corresponding path program 1 times [2021-10-28 23:25:14,439 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 23:25:14,439 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [87103766] [2021-10-28 23:25:14,439 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:25:14,440 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 23:25:14,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 23:25:14,462 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-28 23:25:14,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 23:25:14,498 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-28 23:25:14,942 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 23:25:14,969 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-28 23:25:14,970 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-10-28 23:25:14,971 INFO L87 Difference]: Start difference. First operand has 16 states, 15 states have (on average 1.5333333333333334) internal successors, (23), 15 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 4 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 4 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 23:25:15,040 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 23:25:15,041 INFO L93 Difference]: Finished difference Result 32 states and 37 transitions. [2021-10-28 23:25:15,041 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-10-28 23:25:15,043 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 32 states and 37 transitions. [2021-10-28 23:25:15,047 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 13 [2021-10-28 23:25:15,053 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 32 states to 20 states and 25 transitions. [2021-10-28 23:25:15,054 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 20 [2021-10-28 23:25:15,054 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 20 [2021-10-28 23:25:15,055 INFO L73 IsDeterministic]: Start isDeterministic. Operand 20 states and 25 transitions. [2021-10-28 23:25:15,056 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-28 23:25:15,057 INFO L681 BuchiCegarLoop]: Abstraction has 20 states and 25 transitions. [2021-10-28 23:25:15,072 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20 states and 25 transitions. [2021-10-28 23:25:15,080 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20 to 13. [2021-10-28 23:25:15,081 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13 states, 13 states have (on average 1.2307692307692308) internal successors, (16), 12 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 23:25:15,082 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 16 transitions. [2021-10-28 23:25:15,083 INFO L704 BuchiCegarLoop]: Abstraction has 13 states and 16 transitions. [2021-10-28 23:25:15,083 INFO L587 BuchiCegarLoop]: Abstraction has 13 states and 16 transitions. [2021-10-28 23:25:15,084 INFO L425 BuchiCegarLoop]: ======== Iteration 2============ [2021-10-28 23:25:15,084 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 13 states and 16 transitions. [2021-10-28 23:25:15,086 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 7 [2021-10-28 23:25:15,086 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-28 23:25:15,086 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-28 23:25:15,087 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1] [2021-10-28 23:25:15,087 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1] [2021-10-28 23:25:15,087 INFO L791 eck$LassoCheckResult]: Stem: 62#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call ~#ldv_global_msg_list~0.base, ~#ldv_global_msg_list~0.offset := #Ultimate.allocOnStack(8);call write~init~$Pointer$(~#ldv_global_msg_list~0.base, ~#ldv_global_msg_list~0.offset, ~#ldv_global_msg_list~0.base, ~#ldv_global_msg_list~0.offset, 4);call write~init~$Pointer$(~#ldv_global_msg_list~0.base, ~#ldv_global_msg_list~0.offset, ~#ldv_global_msg_list~0.base, 4 + ~#ldv_global_msg_list~0.offset, 4); 63#L-1 havoc entry_point_#t~ret38.base, entry_point_#t~ret38.offset, entry_point_#t~ret40.base, entry_point_#t~ret40.offset, entry_point_#t~post39, entry_point_#t~mem42.base, entry_point_#t~mem42.offset, entry_point_#t~post41, entry_point_~p~0.base, entry_point_~p~0.offset, entry_point_~i~0, entry_point_~j~0, entry_point_~len~0, entry_point_~array~0.base, entry_point_~array~0.offset;entry_point_~len~0 := 10;ldv_malloc_#in~size := 4 * entry_point_~len~0;havoc ldv_malloc_#res.base, ldv_malloc_#res.offset;havoc ldv_malloc_#t~nondet11, ldv_malloc_#t~malloc12.base, ldv_malloc_#t~malloc12.offset, ldv_malloc_~size;ldv_malloc_~size := ldv_malloc_#in~size; 68#L526 assume 0 != ldv_malloc_#t~nondet11;havoc ldv_malloc_#t~nondet11;call ldv_malloc_#t~malloc12.base, ldv_malloc_#t~malloc12.offset := #Ultimate.allocOnHeap(ldv_malloc_~size);ldv_malloc_#res.base, ldv_malloc_#res.offset := ldv_malloc_#t~malloc12.base, ldv_malloc_#t~malloc12.offset;havoc ldv_malloc_#t~malloc12.base, ldv_malloc_#t~malloc12.offset; 67#L529 entry_point_#t~ret38.base, entry_point_#t~ret38.offset := ldv_malloc_#res.base, ldv_malloc_#res.offset;entry_point_~array~0.base, entry_point_~array~0.offset := entry_point_#t~ret38.base, entry_point_#t~ret38.offset;havoc entry_point_#t~ret38.base, entry_point_#t~ret38.offset; 64#L763 assume entry_point_~array~0.base != 0 || entry_point_~array~0.offset != 0;havoc entry_point_~p~0.base, entry_point_~p~0.offset;entry_point_~i~0 := 0;havoc entry_point_~j~0; 65#L767-3 [2021-10-28 23:25:15,087 INFO L793 eck$LassoCheckResult]: Loop: 65#L767-3 assume !!(entry_point_~i~0 < entry_point_~len~0);ldv_malloc_#in~size := 4;havoc ldv_malloc_#res.base, ldv_malloc_#res.offset;havoc ldv_malloc_#t~nondet11, ldv_malloc_#t~malloc12.base, ldv_malloc_#t~malloc12.offset, ldv_malloc_~size;ldv_malloc_~size := ldv_malloc_#in~size; 69#L526-1 assume 0 != ldv_malloc_#t~nondet11;havoc ldv_malloc_#t~nondet11;call ldv_malloc_#t~malloc12.base, ldv_malloc_#t~malloc12.offset := #Ultimate.allocOnHeap(ldv_malloc_~size);ldv_malloc_#res.base, ldv_malloc_#res.offset := ldv_malloc_#t~malloc12.base, ldv_malloc_#t~malloc12.offset;havoc ldv_malloc_#t~malloc12.base, ldv_malloc_#t~malloc12.offset; 72#L529-1 entry_point_#t~ret40.base, entry_point_#t~ret40.offset := ldv_malloc_#res.base, ldv_malloc_#res.offset;entry_point_~p~0.base, entry_point_~p~0.offset := entry_point_#t~ret40.base, entry_point_#t~ret40.offset;havoc entry_point_#t~ret40.base, entry_point_#t~ret40.offset; 71#L769 assume !(entry_point_~p~0.base == 0 && entry_point_~p~0.offset == 0);call write~$Pointer$(entry_point_~p~0.base, entry_point_~p~0.offset, entry_point_~array~0.base, entry_point_~array~0.offset + 4 * entry_point_~i~0, 4); 70#L767-2 entry_point_#t~post39 := entry_point_~i~0;entry_point_~i~0 := 1 + entry_point_#t~post39;havoc entry_point_#t~post39; 65#L767-3 [2021-10-28 23:25:15,089 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:25:15,089 INFO L85 PathProgramCache]: Analyzing trace with hash 28693829, now seen corresponding path program 1 times [2021-10-28 23:25:15,090 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 23:25:15,090 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [35972168] [2021-10-28 23:25:15,090 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:25:15,091 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 23:25:15,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 23:25:15,129 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-28 23:25:15,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 23:25:15,161 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-28 23:25:15,162 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:25:15,163 INFO L85 PathProgramCache]: Analyzing trace with hash 47811737, now seen corresponding path program 2 times [2021-10-28 23:25:15,163 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 23:25:15,163 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1740787509] [2021-10-28 23:25:15,163 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:25:15,164 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 23:25:15,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 23:25:15,189 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-28 23:25:15,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 23:25:15,218 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-28 23:25:15,219 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:25:15,219 INFO L85 PathProgramCache]: Analyzing trace with hash -1232444971, now seen corresponding path program 1 times [2021-10-28 23:25:15,223 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 23:25:15,224 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [990314394] [2021-10-28 23:25:15,225 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:25:15,226 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 23:25:15,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 23:25:15,276 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-28 23:25:15,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 23:25:15,300 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-28 23:25:16,040 INFO L210 LassoAnalysis]: Preferences: [2021-10-28 23:25:16,041 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-10-28 23:25:16,041 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-10-28 23:25:16,041 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-10-28 23:25:16,041 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2021-10-28 23:25:16,041 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:25:16,042 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-10-28 23:25:16,042 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-10-28 23:25:16,042 INFO L133 ssoRankerPreferences]: Filename of dumped script: memleaks_test18.i_Iteration2_Lasso [2021-10-28 23:25:16,042 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-10-28 23:25:16,042 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-10-28 23:25:16,073 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 23:25:16,081 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 23:25:16,089 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 23:25:16,091 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 23:25:16,371 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 23:25:16,374 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 23:25:16,377 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 23:25:16,379 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 23:25:16,382 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 23:25:16,385 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 23:25:16,387 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 23:25:16,391 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 23:25:16,393 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 23:25:16,395 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 23:25:16,398 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 23:25:16,401 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 23:25:16,403 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 23:25:16,406 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 23:25:16,409 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 23:25:16,413 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 23:25:16,943 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-10-28 23:25:16,948 INFO L490 LassoAnalysis]: Using template 'affine'. [2021-10-28 23:25:16,950 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:25:16,950 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a8afc68-0330-4f74-b825-0d332d587047/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:25:16,952 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a8afc68-0330-4f74-b825-0d332d587047/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:25:16,958 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a8afc68-0330-4f74-b825-0d332d587047/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Waiting until timeout for monitored process [2021-10-28 23:25:16,960 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 23:25:16,970 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 23:25:16,971 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 23:25:16,971 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 23:25:16,971 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 23:25:16,982 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-28 23:25:16,983 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-28 23:25:16,995 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 23:25:17,035 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a8afc68-0330-4f74-b825-0d332d587047/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Forceful destruction successful, exit code 0 [2021-10-28 23:25:17,036 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:25:17,036 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a8afc68-0330-4f74-b825-0d332d587047/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:25:17,037 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a8afc68-0330-4f74-b825-0d332d587047/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:25:17,047 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a8afc68-0330-4f74-b825-0d332d587047/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Waiting until timeout for monitored process [2021-10-28 23:25:17,048 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 23:25:17,057 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 23:25:17,057 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 23:25:17,058 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 23:25:17,058 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 23:25:17,058 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 23:25:17,059 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-28 23:25:17,059 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 23:25:17,075 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 23:25:17,111 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a8afc68-0330-4f74-b825-0d332d587047/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Forceful destruction successful, exit code 0 [2021-10-28 23:25:17,111 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:25:17,112 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a8afc68-0330-4f74-b825-0d332d587047/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:25:17,116 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a8afc68-0330-4f74-b825-0d332d587047/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:25:17,121 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 23:25:17,130 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 23:25:17,130 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 23:25:17,131 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 23:25:17,131 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 23:25:17,131 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 23:25:17,132 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-28 23:25:17,132 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 23:25:17,133 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a8afc68-0330-4f74-b825-0d332d587047/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Waiting until timeout for monitored process [2021-10-28 23:25:17,151 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 23:25:17,173 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a8afc68-0330-4f74-b825-0d332d587047/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Forceful destruction successful, exit code 0 [2021-10-28 23:25:17,173 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:25:17,173 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a8afc68-0330-4f74-b825-0d332d587047/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:25:17,174 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a8afc68-0330-4f74-b825-0d332d587047/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:25:17,175 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a8afc68-0330-4f74-b825-0d332d587047/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Waiting until timeout for monitored process [2021-10-28 23:25:17,179 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 23:25:17,187 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 23:25:17,188 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 23:25:17,188 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 23:25:17,188 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 23:25:17,209 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-28 23:25:17,209 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-28 23:25:17,235 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2021-10-28 23:25:17,283 INFO L443 ModelExtractionUtils]: Simplification made 11 calls to the SMT solver. [2021-10-28 23:25:17,283 INFO L444 ModelExtractionUtils]: 18 out of 40 variables were initially zero. Simplification set additionally 19 variables to zero. [2021-10-28 23:25:17,285 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:25:17,285 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a8afc68-0330-4f74-b825-0d332d587047/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:25:17,292 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a8afc68-0330-4f74-b825-0d332d587047/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:25:17,312 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2021-10-28 23:25:17,321 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a8afc68-0330-4f74-b825-0d332d587047/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Waiting until timeout for monitored process [2021-10-28 23:25:17,360 INFO L438 nArgumentSynthesizer]: Removed 2 redundant supporting invariants from a total of 2. [2021-10-28 23:25:17,361 INFO L513 LassoAnalysis]: Proved termination. [2021-10-28 23:25:17,361 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_entry_point_~len~0, ULTIMATE.start_entry_point_~i~0) = 1*ULTIMATE.start_entry_point_~len~0 - 1*ULTIMATE.start_entry_point_~i~0 Supporting invariants [] [2021-10-28 23:25:17,431 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a8afc68-0330-4f74-b825-0d332d587047/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Forceful destruction successful, exit code 0 [2021-10-28 23:25:17,446 INFO L297 tatePredicateManager]: 5 out of 5 supporting invariants were superfluous and have been removed [2021-10-28 23:25:17,466 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:25:17,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:25:17,498 INFO L263 TraceCheckSpWp]: Trace formula consists of 45 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-28 23:25:17,499 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 23:25:17,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:25:17,540 INFO L263 TraceCheckSpWp]: Trace formula consists of 30 conjuncts, 4 conjunts are in the unsatisfiable core [2021-10-28 23:25:17,541 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 23:25:17,593 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 23:25:17,596 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates [2021-10-28 23:25:17,597 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 13 states and 16 transitions. cyclomatic complexity: 5 Second operand has 3 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 3 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 23:25:17,653 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 13 states and 16 transitions. cyclomatic complexity: 5. Second operand has 3 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 3 states have internal predecessors, (10), 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 27 states and 36 transitions. Complement of second has 6 states. [2021-10-28 23:25:17,654 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2021-10-28 23:25:17,654 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 3 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 23:25:17,655 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 19 transitions. [2021-10-28 23:25:17,657 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 19 transitions. Stem has 5 letters. Loop has 5 letters. [2021-10-28 23:25:17,659 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-28 23:25:17,659 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 19 transitions. Stem has 10 letters. Loop has 5 letters. [2021-10-28 23:25:17,660 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-28 23:25:17,664 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 19 transitions. Stem has 5 letters. Loop has 10 letters. [2021-10-28 23:25:17,665 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-28 23:25:17,665 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 27 states and 36 transitions. [2021-10-28 23:25:17,674 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 4 [2021-10-28 23:25:17,677 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 27 states to 20 states and 26 transitions. [2021-10-28 23:25:17,678 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 13 [2021-10-28 23:25:17,679 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 15 [2021-10-28 23:25:17,679 INFO L73 IsDeterministic]: Start isDeterministic. Operand 20 states and 26 transitions. [2021-10-28 23:25:17,679 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2021-10-28 23:25:17,683 INFO L681 BuchiCegarLoop]: Abstraction has 20 states and 26 transitions. [2021-10-28 23:25:17,683 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20 states and 26 transitions. [2021-10-28 23:25:17,684 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20 to 17. [2021-10-28 23:25:17,687 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) [2021-10-28 23:25:17,688 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 23 transitions. [2021-10-28 23:25:17,688 INFO L704 BuchiCegarLoop]: Abstraction has 17 states and 23 transitions. [2021-10-28 23:25:17,688 INFO L587 BuchiCegarLoop]: Abstraction has 17 states and 23 transitions. [2021-10-28 23:25:17,688 INFO L425 BuchiCegarLoop]: ======== Iteration 3============ [2021-10-28 23:25:17,689 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 17 states and 23 transitions. [2021-10-28 23:25:17,689 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2021-10-28 23:25:17,691 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-28 23:25:17,691 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-28 23:25:17,691 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2021-10-28 23:25:17,692 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2021-10-28 23:25:17,692 INFO L791 eck$LassoCheckResult]: Stem: 173#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call ~#ldv_global_msg_list~0.base, ~#ldv_global_msg_list~0.offset := #Ultimate.allocOnStack(8);call write~init~$Pointer$(~#ldv_global_msg_list~0.base, ~#ldv_global_msg_list~0.offset, ~#ldv_global_msg_list~0.base, ~#ldv_global_msg_list~0.offset, 4);call write~init~$Pointer$(~#ldv_global_msg_list~0.base, ~#ldv_global_msg_list~0.offset, ~#ldv_global_msg_list~0.base, 4 + ~#ldv_global_msg_list~0.offset, 4); 174#L-1 havoc entry_point_#t~ret38.base, entry_point_#t~ret38.offset, entry_point_#t~ret40.base, entry_point_#t~ret40.offset, entry_point_#t~post39, entry_point_#t~mem42.base, entry_point_#t~mem42.offset, entry_point_#t~post41, entry_point_~p~0.base, entry_point_~p~0.offset, entry_point_~i~0, entry_point_~j~0, entry_point_~len~0, entry_point_~array~0.base, entry_point_~array~0.offset;entry_point_~len~0 := 10;ldv_malloc_#in~size := 4 * entry_point_~len~0;havoc ldv_malloc_#res.base, ldv_malloc_#res.offset;havoc ldv_malloc_#t~nondet11, ldv_malloc_#t~malloc12.base, ldv_malloc_#t~malloc12.offset, ldv_malloc_~size;ldv_malloc_~size := ldv_malloc_#in~size; 181#L526 assume 0 != ldv_malloc_#t~nondet11;havoc ldv_malloc_#t~nondet11;call ldv_malloc_#t~malloc12.base, ldv_malloc_#t~malloc12.offset := #Ultimate.allocOnHeap(ldv_malloc_~size);ldv_malloc_#res.base, ldv_malloc_#res.offset := ldv_malloc_#t~malloc12.base, ldv_malloc_#t~malloc12.offset;havoc ldv_malloc_#t~malloc12.base, ldv_malloc_#t~malloc12.offset; 180#L529 entry_point_#t~ret38.base, entry_point_#t~ret38.offset := ldv_malloc_#res.base, ldv_malloc_#res.offset;entry_point_~array~0.base, entry_point_~array~0.offset := entry_point_#t~ret38.base, entry_point_#t~ret38.offset;havoc entry_point_#t~ret38.base, entry_point_#t~ret38.offset; 177#L763 assume entry_point_~array~0.base != 0 || entry_point_~array~0.offset != 0;havoc entry_point_~p~0.base, entry_point_~p~0.offset;entry_point_~i~0 := 0;havoc entry_point_~j~0; 178#L767-3 assume !(entry_point_~i~0 < entry_point_~len~0); 179#L772 entry_point_~j~0 := entry_point_~i~0 - 1; 175#L773-3 [2021-10-28 23:25:17,692 INFO L793 eck$LassoCheckResult]: Loop: 175#L773-3 assume !!(entry_point_~j~0 >= 0);call entry_point_#t~mem42.base, entry_point_#t~mem42.offset := read~$Pointer$(entry_point_~array~0.base, entry_point_~array~0.offset + 4 * entry_point_~j~0, 4);call ULTIMATE.dealloc(entry_point_#t~mem42.base, entry_point_#t~mem42.offset);havoc entry_point_#t~mem42.base, entry_point_#t~mem42.offset; 176#L773-2 entry_point_#t~post41 := entry_point_~j~0;entry_point_~j~0 := entry_point_#t~post41 - 1;havoc entry_point_#t~post41; 175#L773-3 [2021-10-28 23:25:17,692 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:25:17,693 INFO L85 PathProgramCache]: Analyzing trace with hash 1804966489, now seen corresponding path program 1 times [2021-10-28 23:25:17,693 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 23:25:17,693 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1368709662] [2021-10-28 23:25:17,694 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:25:17,694 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 23:25:17,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:25:17,731 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 23:25:17,747 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 23:25:17,747 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1368709662] [2021-10-28 23:25:17,748 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1368709662] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-28 23:25:17,748 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-28 23:25:17,748 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-10-28 23:25:17,748 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1756748183] [2021-10-28 23:25:17,749 INFO L796 eck$LassoCheckResult]: stem already infeasible [2021-10-28 23:25:17,749 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:25:17,749 INFO L85 PathProgramCache]: Analyzing trace with hash 2435, now seen corresponding path program 1 times [2021-10-28 23:25:17,749 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 23:25:17,750 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [409302785] [2021-10-28 23:25:17,750 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:25:17,750 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 23:25:17,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 23:25:17,770 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-28 23:25:17,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 23:25:17,784 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-28 23:25:17,826 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 23:25:17,826 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-28 23:25:17,826 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-10-28 23:25:17,827 INFO L87 Difference]: Start difference. First operand 17 states and 23 transitions. cyclomatic complexity: 8 Second operand has 4 states, 4 states have (on average 1.75) internal successors, (7), 4 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 23:25:17,846 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 23:25:17,846 INFO L93 Difference]: Finished difference Result 27 states and 34 transitions. [2021-10-28 23:25:17,846 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-28 23:25:17,846 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 27 states and 34 transitions. [2021-10-28 23:25:17,848 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 4 [2021-10-28 23:25:17,848 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 27 states to 27 states and 34 transitions. [2021-10-28 23:25:17,849 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 18 [2021-10-28 23:25:17,849 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 18 [2021-10-28 23:25:17,849 INFO L73 IsDeterministic]: Start isDeterministic. Operand 27 states and 34 transitions. [2021-10-28 23:25:17,849 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2021-10-28 23:25:17,849 INFO L681 BuchiCegarLoop]: Abstraction has 27 states and 34 transitions. [2021-10-28 23:25:17,849 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27 states and 34 transitions. [2021-10-28 23:25:17,852 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27 to 17. [2021-10-28 23:25:17,853 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17 states, 17 states have (on average 1.2941176470588236) internal successors, (22), 16 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 23:25:17,853 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 22 transitions. [2021-10-28 23:25:17,854 INFO L704 BuchiCegarLoop]: Abstraction has 17 states and 22 transitions. [2021-10-28 23:25:17,854 INFO L587 BuchiCegarLoop]: Abstraction has 17 states and 22 transitions. [2021-10-28 23:25:17,854 INFO L425 BuchiCegarLoop]: ======== Iteration 4============ [2021-10-28 23:25:17,854 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 17 states and 22 transitions. [2021-10-28 23:25:17,856 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2021-10-28 23:25:17,856 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-28 23:25:17,856 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-28 23:25:17,857 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 23:25:17,857 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2021-10-28 23:25:17,857 INFO L791 eck$LassoCheckResult]: Stem: 224#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call ~#ldv_global_msg_list~0.base, ~#ldv_global_msg_list~0.offset := #Ultimate.allocOnStack(8);call write~init~$Pointer$(~#ldv_global_msg_list~0.base, ~#ldv_global_msg_list~0.offset, ~#ldv_global_msg_list~0.base, ~#ldv_global_msg_list~0.offset, 4);call write~init~$Pointer$(~#ldv_global_msg_list~0.base, ~#ldv_global_msg_list~0.offset, ~#ldv_global_msg_list~0.base, 4 + ~#ldv_global_msg_list~0.offset, 4); 225#L-1 havoc entry_point_#t~ret38.base, entry_point_#t~ret38.offset, entry_point_#t~ret40.base, entry_point_#t~ret40.offset, entry_point_#t~post39, entry_point_#t~mem42.base, entry_point_#t~mem42.offset, entry_point_#t~post41, entry_point_~p~0.base, entry_point_~p~0.offset, entry_point_~i~0, entry_point_~j~0, entry_point_~len~0, entry_point_~array~0.base, entry_point_~array~0.offset;entry_point_~len~0 := 10;ldv_malloc_#in~size := 4 * entry_point_~len~0;havoc ldv_malloc_#res.base, ldv_malloc_#res.offset;havoc ldv_malloc_#t~nondet11, ldv_malloc_#t~malloc12.base, ldv_malloc_#t~malloc12.offset, ldv_malloc_~size;ldv_malloc_~size := ldv_malloc_#in~size; 232#L526 assume 0 != ldv_malloc_#t~nondet11;havoc ldv_malloc_#t~nondet11;call ldv_malloc_#t~malloc12.base, ldv_malloc_#t~malloc12.offset := #Ultimate.allocOnHeap(ldv_malloc_~size);ldv_malloc_#res.base, ldv_malloc_#res.offset := ldv_malloc_#t~malloc12.base, ldv_malloc_#t~malloc12.offset;havoc ldv_malloc_#t~malloc12.base, ldv_malloc_#t~malloc12.offset; 231#L529 entry_point_#t~ret38.base, entry_point_#t~ret38.offset := ldv_malloc_#res.base, ldv_malloc_#res.offset;entry_point_~array~0.base, entry_point_~array~0.offset := entry_point_#t~ret38.base, entry_point_#t~ret38.offset;havoc entry_point_#t~ret38.base, entry_point_#t~ret38.offset; 228#L763 assume entry_point_~array~0.base != 0 || entry_point_~array~0.offset != 0;havoc entry_point_~p~0.base, entry_point_~p~0.offset;entry_point_~i~0 := 0;havoc entry_point_~j~0; 229#L767-3 assume !!(entry_point_~i~0 < entry_point_~len~0);ldv_malloc_#in~size := 4;havoc ldv_malloc_#res.base, ldv_malloc_#res.offset;havoc ldv_malloc_#t~nondet11, ldv_malloc_#t~malloc12.base, ldv_malloc_#t~malloc12.offset, ldv_malloc_~size;ldv_malloc_~size := ldv_malloc_#in~size; 234#L526-1 assume !(0 != ldv_malloc_#t~nondet11);havoc ldv_malloc_#t~nondet11;ldv_malloc_#res.base, ldv_malloc_#res.offset := 0, 0; 239#L529-1 entry_point_#t~ret40.base, entry_point_#t~ret40.offset := ldv_malloc_#res.base, ldv_malloc_#res.offset;entry_point_~p~0.base, entry_point_~p~0.offset := entry_point_#t~ret40.base, entry_point_#t~ret40.offset;havoc entry_point_#t~ret40.base, entry_point_#t~ret40.offset; 237#L769 assume entry_point_~p~0.base == 0 && entry_point_~p~0.offset == 0; 230#L772 entry_point_~j~0 := entry_point_~i~0 - 1; 226#L773-3 [2021-10-28 23:25:17,857 INFO L793 eck$LassoCheckResult]: Loop: 226#L773-3 assume !!(entry_point_~j~0 >= 0);call entry_point_#t~mem42.base, entry_point_#t~mem42.offset := read~$Pointer$(entry_point_~array~0.base, entry_point_~array~0.offset + 4 * entry_point_~j~0, 4);call ULTIMATE.dealloc(entry_point_#t~mem42.base, entry_point_#t~mem42.offset);havoc entry_point_#t~mem42.base, entry_point_#t~mem42.offset; 227#L773-2 entry_point_#t~post41 := entry_point_~j~0;entry_point_~j~0 := entry_point_#t~post41 - 1;havoc entry_point_#t~post41; 226#L773-3 [2021-10-28 23:25:17,858 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:25:17,858 INFO L85 PathProgramCache]: Analyzing trace with hash -1232385447, now seen corresponding path program 1 times [2021-10-28 23:25:17,858 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 23:25:17,858 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [469066817] [2021-10-28 23:25:17,858 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:25:17,859 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 23:25:17,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 23:25:17,873 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-28 23:25:17,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 23:25:17,900 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-28 23:25:17,901 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:25:17,901 INFO L85 PathProgramCache]: Analyzing trace with hash 2435, now seen corresponding path program 2 times [2021-10-28 23:25:17,901 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 23:25:17,901 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1035321230] [2021-10-28 23:25:17,901 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:25:17,901 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 23:25:17,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 23:25:17,915 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-28 23:25:17,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 23:25:17,926 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-28 23:25:17,927 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:25:17,927 INFO L85 PathProgramCache]: Analyzing trace with hash 1088560603, now seen corresponding path program 1 times [2021-10-28 23:25:17,927 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 23:25:17,928 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1914474499] [2021-10-28 23:25:17,928 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:25:17,928 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 23:25:17,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:25:17,982 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 23:25:17,982 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 23:25:17,982 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1914474499] [2021-10-28 23:25:17,983 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1914474499] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-28 23:25:17,983 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-28 23:25:17,983 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-10-28 23:25:17,983 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [175542021] [2021-10-28 23:25:18,021 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 23:25:18,022 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-28 23:25:18,022 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-10-28 23:25:18,022 INFO L87 Difference]: Start difference. First operand 17 states and 22 transitions. cyclomatic complexity: 7 Second operand has 4 states, 4 states have (on average 3.0) internal successors, (12), 4 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 23:25:18,050 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 23:25:18,051 INFO L93 Difference]: Finished difference Result 26 states and 32 transitions. [2021-10-28 23:25:18,051 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-28 23:25:18,051 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 26 states and 32 transitions. [2021-10-28 23:25:18,052 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2021-10-28 23:25:18,053 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 26 states to 21 states and 26 transitions. [2021-10-28 23:25:18,053 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 12 [2021-10-28 23:25:18,053 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 12 [2021-10-28 23:25:18,053 INFO L73 IsDeterministic]: Start isDeterministic. Operand 21 states and 26 transitions. [2021-10-28 23:25:18,054 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2021-10-28 23:25:18,054 INFO L681 BuchiCegarLoop]: Abstraction has 21 states and 26 transitions. [2021-10-28 23:25:18,054 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21 states and 26 transitions. [2021-10-28 23:25:18,055 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21 to 17. [2021-10-28 23:25:18,055 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) [2021-10-28 23:25:18,056 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 21 transitions. [2021-10-28 23:25:18,056 INFO L704 BuchiCegarLoop]: Abstraction has 17 states and 21 transitions. [2021-10-28 23:25:18,056 INFO L587 BuchiCegarLoop]: Abstraction has 17 states and 21 transitions. [2021-10-28 23:25:18,056 INFO L425 BuchiCegarLoop]: ======== Iteration 5============ [2021-10-28 23:25:18,056 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 17 states and 21 transitions. [2021-10-28 23:25:18,057 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2021-10-28 23:25:18,057 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-28 23:25:18,057 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-28 23:25:18,058 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 23:25:18,058 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2021-10-28 23:25:18,058 INFO L791 eck$LassoCheckResult]: Stem: 280#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call ~#ldv_global_msg_list~0.base, ~#ldv_global_msg_list~0.offset := #Ultimate.allocOnStack(8);call write~init~$Pointer$(~#ldv_global_msg_list~0.base, ~#ldv_global_msg_list~0.offset, ~#ldv_global_msg_list~0.base, ~#ldv_global_msg_list~0.offset, 4);call write~init~$Pointer$(~#ldv_global_msg_list~0.base, ~#ldv_global_msg_list~0.offset, ~#ldv_global_msg_list~0.base, 4 + ~#ldv_global_msg_list~0.offset, 4); 281#L-1 havoc entry_point_#t~ret38.base, entry_point_#t~ret38.offset, entry_point_#t~ret40.base, entry_point_#t~ret40.offset, entry_point_#t~post39, entry_point_#t~mem42.base, entry_point_#t~mem42.offset, entry_point_#t~post41, entry_point_~p~0.base, entry_point_~p~0.offset, entry_point_~i~0, entry_point_~j~0, entry_point_~len~0, entry_point_~array~0.base, entry_point_~array~0.offset;entry_point_~len~0 := 10;ldv_malloc_#in~size := 4 * entry_point_~len~0;havoc ldv_malloc_#res.base, ldv_malloc_#res.offset;havoc ldv_malloc_#t~nondet11, ldv_malloc_#t~malloc12.base, ldv_malloc_#t~malloc12.offset, ldv_malloc_~size;ldv_malloc_~size := ldv_malloc_#in~size; 286#L526 assume 0 != ldv_malloc_#t~nondet11;havoc ldv_malloc_#t~nondet11;call ldv_malloc_#t~malloc12.base, ldv_malloc_#t~malloc12.offset := #Ultimate.allocOnHeap(ldv_malloc_~size);ldv_malloc_#res.base, ldv_malloc_#res.offset := ldv_malloc_#t~malloc12.base, ldv_malloc_#t~malloc12.offset;havoc ldv_malloc_#t~malloc12.base, ldv_malloc_#t~malloc12.offset; 285#L529 entry_point_#t~ret38.base, entry_point_#t~ret38.offset := ldv_malloc_#res.base, ldv_malloc_#res.offset;entry_point_~array~0.base, entry_point_~array~0.offset := entry_point_#t~ret38.base, entry_point_#t~ret38.offset;havoc entry_point_#t~ret38.base, entry_point_#t~ret38.offset; 282#L763 assume entry_point_~array~0.base != 0 || entry_point_~array~0.offset != 0;havoc entry_point_~p~0.base, entry_point_~p~0.offset;entry_point_~i~0 := 0;havoc entry_point_~j~0; 283#L767-3 assume !!(entry_point_~i~0 < entry_point_~len~0);ldv_malloc_#in~size := 4;havoc ldv_malloc_#res.base, ldv_malloc_#res.offset;havoc ldv_malloc_#t~nondet11, ldv_malloc_#t~malloc12.base, ldv_malloc_#t~malloc12.offset, ldv_malloc_~size;ldv_malloc_~size := ldv_malloc_#in~size; 289#L526-1 assume !(0 != ldv_malloc_#t~nondet11);havoc ldv_malloc_#t~nondet11;ldv_malloc_#res.base, ldv_malloc_#res.offset := 0, 0; 294#L529-1 entry_point_#t~ret40.base, entry_point_#t~ret40.offset := ldv_malloc_#res.base, ldv_malloc_#res.offset;entry_point_~p~0.base, entry_point_~p~0.offset := entry_point_#t~ret40.base, entry_point_#t~ret40.offset;havoc entry_point_#t~ret40.base, entry_point_#t~ret40.offset; 292#L769 assume !(entry_point_~p~0.base == 0 && entry_point_~p~0.offset == 0);call write~$Pointer$(entry_point_~p~0.base, entry_point_~p~0.offset, entry_point_~array~0.base, entry_point_~array~0.offset + 4 * entry_point_~i~0, 4); 287#L767-2 entry_point_#t~post39 := entry_point_~i~0;entry_point_~i~0 := 1 + entry_point_#t~post39;havoc entry_point_#t~post39; 288#L767-3 assume !(entry_point_~i~0 < entry_point_~len~0); 284#L772 entry_point_~j~0 := entry_point_~i~0 - 1; 278#L773-3 [2021-10-28 23:25:18,058 INFO L793 eck$LassoCheckResult]: Loop: 278#L773-3 assume !!(entry_point_~j~0 >= 0);call entry_point_#t~mem42.base, entry_point_#t~mem42.offset := read~$Pointer$(entry_point_~array~0.base, entry_point_~array~0.offset + 4 * entry_point_~j~0, 4);call ULTIMATE.dealloc(entry_point_#t~mem42.base, entry_point_#t~mem42.offset);havoc entry_point_#t~mem42.base, entry_point_#t~mem42.offset; 279#L773-2 entry_point_#t~post41 := entry_point_~j~0;entry_point_~j~0 := entry_point_#t~post41 - 1;havoc entry_point_#t~post41; 278#L773-3 [2021-10-28 23:25:18,059 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:25:18,059 INFO L85 PathProgramCache]: Analyzing trace with hash 1088615463, now seen corresponding path program 1 times [2021-10-28 23:25:18,059 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 23:25:18,059 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [227262962] [2021-10-28 23:25:18,059 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:25:18,060 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 23:25:18,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:25:18,094 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 23:25:18,094 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 23:25:18,095 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [227262962] [2021-10-28 23:25:18,095 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [227262962] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-28 23:25:18,095 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-28 23:25:18,095 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-10-28 23:25:18,095 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [50133577] [2021-10-28 23:25:18,096 INFO L796 eck$LassoCheckResult]: stem already infeasible [2021-10-28 23:25:18,096 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:25:18,096 INFO L85 PathProgramCache]: Analyzing trace with hash 2435, now seen corresponding path program 3 times [2021-10-28 23:25:18,097 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 23:25:18,097 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [663262429] [2021-10-28 23:25:18,097 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:25:18,097 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 23:25:18,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 23:25:18,101 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-28 23:25:18,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 23:25:18,105 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-28 23:25:18,139 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 23:25:18,140 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-28 23:25:18,140 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-10-28 23:25:18,141 INFO L87 Difference]: Start difference. First operand 17 states and 21 transitions. cyclomatic complexity: 6 Second operand has 4 states, 4 states have (on average 3.0) internal successors, (12), 4 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 23:25:18,171 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 23:25:18,171 INFO L93 Difference]: Finished difference Result 27 states and 30 transitions. [2021-10-28 23:25:18,171 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-10-28 23:25:18,171 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 27 states and 30 transitions. [2021-10-28 23:25:18,172 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 6 [2021-10-28 23:25:18,173 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 27 states to 25 states and 28 transitions. [2021-10-28 23:25:18,173 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 20 [2021-10-28 23:25:18,173 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 20 [2021-10-28 23:25:18,173 INFO L73 IsDeterministic]: Start isDeterministic. Operand 25 states and 28 transitions. [2021-10-28 23:25:18,173 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2021-10-28 23:25:18,173 INFO L681 BuchiCegarLoop]: Abstraction has 25 states and 28 transitions. [2021-10-28 23:25:18,174 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25 states and 28 transitions. [2021-10-28 23:25:18,175 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25 to 17. [2021-10-28 23:25:18,175 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) [2021-10-28 23:25:18,176 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 20 transitions. [2021-10-28 23:25:18,176 INFO L704 BuchiCegarLoop]: Abstraction has 17 states and 20 transitions. [2021-10-28 23:25:18,176 INFO L587 BuchiCegarLoop]: Abstraction has 17 states and 20 transitions. [2021-10-28 23:25:18,176 INFO L425 BuchiCegarLoop]: ======== Iteration 6============ [2021-10-28 23:25:18,176 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 17 states and 20 transitions. [2021-10-28 23:25:18,177 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2021-10-28 23:25:18,177 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-28 23:25:18,177 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-28 23:25:18,177 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 23:25:18,177 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2021-10-28 23:25:18,178 INFO L791 eck$LassoCheckResult]: Stem: 333#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call ~#ldv_global_msg_list~0.base, ~#ldv_global_msg_list~0.offset := #Ultimate.allocOnStack(8);call write~init~$Pointer$(~#ldv_global_msg_list~0.base, ~#ldv_global_msg_list~0.offset, ~#ldv_global_msg_list~0.base, ~#ldv_global_msg_list~0.offset, 4);call write~init~$Pointer$(~#ldv_global_msg_list~0.base, ~#ldv_global_msg_list~0.offset, ~#ldv_global_msg_list~0.base, 4 + ~#ldv_global_msg_list~0.offset, 4); 334#L-1 havoc entry_point_#t~ret38.base, entry_point_#t~ret38.offset, entry_point_#t~ret40.base, entry_point_#t~ret40.offset, entry_point_#t~post39, entry_point_#t~mem42.base, entry_point_#t~mem42.offset, entry_point_#t~post41, entry_point_~p~0.base, entry_point_~p~0.offset, entry_point_~i~0, entry_point_~j~0, entry_point_~len~0, entry_point_~array~0.base, entry_point_~array~0.offset;entry_point_~len~0 := 10;ldv_malloc_#in~size := 4 * entry_point_~len~0;havoc ldv_malloc_#res.base, ldv_malloc_#res.offset;havoc ldv_malloc_#t~nondet11, ldv_malloc_#t~malloc12.base, ldv_malloc_#t~malloc12.offset, ldv_malloc_~size;ldv_malloc_~size := ldv_malloc_#in~size; 339#L526 assume 0 != ldv_malloc_#t~nondet11;havoc ldv_malloc_#t~nondet11;call ldv_malloc_#t~malloc12.base, ldv_malloc_#t~malloc12.offset := #Ultimate.allocOnHeap(ldv_malloc_~size);ldv_malloc_#res.base, ldv_malloc_#res.offset := ldv_malloc_#t~malloc12.base, ldv_malloc_#t~malloc12.offset;havoc ldv_malloc_#t~malloc12.base, ldv_malloc_#t~malloc12.offset; 338#L529 entry_point_#t~ret38.base, entry_point_#t~ret38.offset := ldv_malloc_#res.base, ldv_malloc_#res.offset;entry_point_~array~0.base, entry_point_~array~0.offset := entry_point_#t~ret38.base, entry_point_#t~ret38.offset;havoc entry_point_#t~ret38.base, entry_point_#t~ret38.offset; 335#L763 assume entry_point_~array~0.base != 0 || entry_point_~array~0.offset != 0;havoc entry_point_~p~0.base, entry_point_~p~0.offset;entry_point_~i~0 := 0;havoc entry_point_~j~0; 336#L767-3 assume !!(entry_point_~i~0 < entry_point_~len~0);ldv_malloc_#in~size := 4;havoc ldv_malloc_#res.base, ldv_malloc_#res.offset;havoc ldv_malloc_#t~nondet11, ldv_malloc_#t~malloc12.base, ldv_malloc_#t~malloc12.offset, ldv_malloc_~size;ldv_malloc_~size := ldv_malloc_#in~size; 340#L526-1 assume 0 != ldv_malloc_#t~nondet11;havoc ldv_malloc_#t~nondet11;call ldv_malloc_#t~malloc12.base, ldv_malloc_#t~malloc12.offset := #Ultimate.allocOnHeap(ldv_malloc_~size);ldv_malloc_#res.base, ldv_malloc_#res.offset := ldv_malloc_#t~malloc12.base, ldv_malloc_#t~malloc12.offset;havoc ldv_malloc_#t~malloc12.base, ldv_malloc_#t~malloc12.offset; 347#L529-1 entry_point_#t~ret40.base, entry_point_#t~ret40.offset := ldv_malloc_#res.base, ldv_malloc_#res.offset;entry_point_~p~0.base, entry_point_~p~0.offset := entry_point_#t~ret40.base, entry_point_#t~ret40.offset;havoc entry_point_#t~ret40.base, entry_point_#t~ret40.offset; 345#L769 assume !(entry_point_~p~0.base == 0 && entry_point_~p~0.offset == 0);call write~$Pointer$(entry_point_~p~0.base, entry_point_~p~0.offset, entry_point_~array~0.base, entry_point_~array~0.offset + 4 * entry_point_~i~0, 4); 343#L767-2 entry_point_#t~post39 := entry_point_~i~0;entry_point_~i~0 := 1 + entry_point_#t~post39;havoc entry_point_#t~post39; 341#L767-3 assume !(entry_point_~i~0 < entry_point_~len~0); 337#L772 entry_point_~j~0 := entry_point_~i~0 - 1; 331#L773-3 [2021-10-28 23:25:18,178 INFO L793 eck$LassoCheckResult]: Loop: 331#L773-3 assume !!(entry_point_~j~0 >= 0);call entry_point_#t~mem42.base, entry_point_#t~mem42.offset := read~$Pointer$(entry_point_~array~0.base, entry_point_~array~0.offset + 4 * entry_point_~j~0, 4);call ULTIMATE.dealloc(entry_point_#t~mem42.base, entry_point_#t~mem42.offset);havoc entry_point_#t~mem42.base, entry_point_#t~mem42.offset; 332#L773-2 entry_point_#t~post41 := entry_point_~j~0;entry_point_~j~0 := entry_point_#t~post41 - 1;havoc entry_point_#t~post41; 331#L773-3 [2021-10-28 23:25:18,178 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:25:18,178 INFO L85 PathProgramCache]: Analyzing trace with hash 1031357161, now seen corresponding path program 1 times [2021-10-28 23:25:18,179 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 23:25:18,179 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [372356327] [2021-10-28 23:25:18,179 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:25:18,179 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 23:25:18,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:25:18,224 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 23:25:18,224 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 23:25:18,224 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [372356327] [2021-10-28 23:25:18,224 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [372356327] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-28 23:25:18,225 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2141770098] [2021-10-28 23:25:18,225 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:25:18,225 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-28 23:25:18,225 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a8afc68-0330-4f74-b825-0d332d587047/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:25:18,239 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a8afc68-0330-4f74-b825-0d332d587047/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-28 23:25:18,242 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a8afc68-0330-4f74-b825-0d332d587047/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2021-10-28 23:25:18,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:25:18,295 INFO L263 TraceCheckSpWp]: Trace formula consists of 76 conjuncts, 4 conjunts are in the unsatisfiable core [2021-10-28 23:25:18,296 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 23:25:18,376 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a8afc68-0330-4f74-b825-0d332d587047/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Forceful destruction successful, exit code 0 [2021-10-28 23:25:18,458 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 23:25:18,458 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2141770098] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-28 23:25:18,458 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-28 23:25:18,459 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 7 [2021-10-28 23:25:18,459 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1115373849] [2021-10-28 23:25:18,459 INFO L796 eck$LassoCheckResult]: stem already infeasible [2021-10-28 23:25:18,460 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:25:18,460 INFO L85 PathProgramCache]: Analyzing trace with hash 2435, now seen corresponding path program 4 times [2021-10-28 23:25:18,460 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 23:25:18,460 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [305820879] [2021-10-28 23:25:18,460 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:25:18,460 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 23:25:18,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 23:25:18,464 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-28 23:25:18,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 23:25:18,468 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-28 23:25:18,508 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 23:25:18,509 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-10-28 23:25:18,509 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=22, Unknown=0, NotChecked=0, Total=42 [2021-10-28 23:25:18,509 INFO L87 Difference]: Start difference. First operand 17 states and 20 transitions. cyclomatic complexity: 5 Second operand has 7 states, 7 states have (on average 2.7142857142857144) internal successors, (19), 7 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 23:25:18,536 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 23:25:18,536 INFO L93 Difference]: Finished difference Result 32 states and 37 transitions. [2021-10-28 23:25:18,537 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-10-28 23:25:18,537 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 32 states and 37 transitions. [2021-10-28 23:25:18,538 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 4 [2021-10-28 23:25:18,538 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 32 states to 32 states and 37 transitions. [2021-10-28 23:25:18,538 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 18 [2021-10-28 23:25:18,538 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 18 [2021-10-28 23:25:18,539 INFO L73 IsDeterministic]: Start isDeterministic. Operand 32 states and 37 transitions. [2021-10-28 23:25:18,539 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2021-10-28 23:25:18,539 INFO L681 BuchiCegarLoop]: Abstraction has 32 states and 37 transitions. [2021-10-28 23:25:18,539 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32 states and 37 transitions. [2021-10-28 23:25:18,540 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32 to 22. [2021-10-28 23:25:18,541 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 22 states, 22 states have (on average 1.1818181818181819) internal successors, (26), 21 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 23:25:18,541 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 22 states and 26 transitions. [2021-10-28 23:25:18,541 INFO L704 BuchiCegarLoop]: Abstraction has 22 states and 26 transitions. [2021-10-28 23:25:18,541 INFO L587 BuchiCegarLoop]: Abstraction has 22 states and 26 transitions. [2021-10-28 23:25:18,541 INFO L425 BuchiCegarLoop]: ======== Iteration 7============ [2021-10-28 23:25:18,542 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 22 states and 26 transitions. [2021-10-28 23:25:18,542 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2021-10-28 23:25:18,542 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-28 23:25:18,542 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-28 23:25:18,543 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 23:25:18,543 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2021-10-28 23:25:18,543 INFO L791 eck$LassoCheckResult]: Stem: 423#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call ~#ldv_global_msg_list~0.base, ~#ldv_global_msg_list~0.offset := #Ultimate.allocOnStack(8);call write~init~$Pointer$(~#ldv_global_msg_list~0.base, ~#ldv_global_msg_list~0.offset, ~#ldv_global_msg_list~0.base, ~#ldv_global_msg_list~0.offset, 4);call write~init~$Pointer$(~#ldv_global_msg_list~0.base, ~#ldv_global_msg_list~0.offset, ~#ldv_global_msg_list~0.base, 4 + ~#ldv_global_msg_list~0.offset, 4); 424#L-1 havoc entry_point_#t~ret38.base, entry_point_#t~ret38.offset, entry_point_#t~ret40.base, entry_point_#t~ret40.offset, entry_point_#t~post39, entry_point_#t~mem42.base, entry_point_#t~mem42.offset, entry_point_#t~post41, entry_point_~p~0.base, entry_point_~p~0.offset, entry_point_~i~0, entry_point_~j~0, entry_point_~len~0, entry_point_~array~0.base, entry_point_~array~0.offset;entry_point_~len~0 := 10;ldv_malloc_#in~size := 4 * entry_point_~len~0;havoc ldv_malloc_#res.base, ldv_malloc_#res.offset;havoc ldv_malloc_#t~nondet11, ldv_malloc_#t~malloc12.base, ldv_malloc_#t~malloc12.offset, ldv_malloc_~size;ldv_malloc_~size := ldv_malloc_#in~size; 431#L526 assume 0 != ldv_malloc_#t~nondet11;havoc ldv_malloc_#t~nondet11;call ldv_malloc_#t~malloc12.base, ldv_malloc_#t~malloc12.offset := #Ultimate.allocOnHeap(ldv_malloc_~size);ldv_malloc_#res.base, ldv_malloc_#res.offset := ldv_malloc_#t~malloc12.base, ldv_malloc_#t~malloc12.offset;havoc ldv_malloc_#t~malloc12.base, ldv_malloc_#t~malloc12.offset; 430#L529 entry_point_#t~ret38.base, entry_point_#t~ret38.offset := ldv_malloc_#res.base, ldv_malloc_#res.offset;entry_point_~array~0.base, entry_point_~array~0.offset := entry_point_#t~ret38.base, entry_point_#t~ret38.offset;havoc entry_point_#t~ret38.base, entry_point_#t~ret38.offset; 427#L763 assume entry_point_~array~0.base != 0 || entry_point_~array~0.offset != 0;havoc entry_point_~p~0.base, entry_point_~p~0.offset;entry_point_~i~0 := 0;havoc entry_point_~j~0; 428#L767-3 assume !!(entry_point_~i~0 < entry_point_~len~0);ldv_malloc_#in~size := 4;havoc ldv_malloc_#res.base, ldv_malloc_#res.offset;havoc ldv_malloc_#t~nondet11, ldv_malloc_#t~malloc12.base, ldv_malloc_#t~malloc12.offset, ldv_malloc_~size;ldv_malloc_~size := ldv_malloc_#in~size; 432#L526-1 assume 0 != ldv_malloc_#t~nondet11;havoc ldv_malloc_#t~nondet11;call ldv_malloc_#t~malloc12.base, ldv_malloc_#t~malloc12.offset := #Ultimate.allocOnHeap(ldv_malloc_~size);ldv_malloc_#res.base, ldv_malloc_#res.offset := ldv_malloc_#t~malloc12.base, ldv_malloc_#t~malloc12.offset;havoc ldv_malloc_#t~malloc12.base, ldv_malloc_#t~malloc12.offset; 444#L529-1 entry_point_#t~ret40.base, entry_point_#t~ret40.offset := ldv_malloc_#res.base, ldv_malloc_#res.offset;entry_point_~p~0.base, entry_point_~p~0.offset := entry_point_#t~ret40.base, entry_point_#t~ret40.offset;havoc entry_point_#t~ret40.base, entry_point_#t~ret40.offset; 443#L769 assume !(entry_point_~p~0.base == 0 && entry_point_~p~0.offset == 0);call write~$Pointer$(entry_point_~p~0.base, entry_point_~p~0.offset, entry_point_~array~0.base, entry_point_~array~0.offset + 4 * entry_point_~i~0, 4); 442#L767-2 entry_point_#t~post39 := entry_point_~i~0;entry_point_~i~0 := 1 + entry_point_#t~post39;havoc entry_point_#t~post39; 433#L767-3 assume !!(entry_point_~i~0 < entry_point_~len~0);ldv_malloc_#in~size := 4;havoc ldv_malloc_#res.base, ldv_malloc_#res.offset;havoc ldv_malloc_#t~nondet11, ldv_malloc_#t~malloc12.base, ldv_malloc_#t~malloc12.offset, ldv_malloc_~size;ldv_malloc_~size := ldv_malloc_#in~size; 435#L526-1 assume !(0 != ldv_malloc_#t~nondet11);havoc ldv_malloc_#t~nondet11;ldv_malloc_#res.base, ldv_malloc_#res.offset := 0, 0; 440#L529-1 entry_point_#t~ret40.base, entry_point_#t~ret40.offset := ldv_malloc_#res.base, ldv_malloc_#res.offset;entry_point_~p~0.base, entry_point_~p~0.offset := entry_point_#t~ret40.base, entry_point_#t~ret40.offset;havoc entry_point_#t~ret40.base, entry_point_#t~ret40.offset; 438#L769 assume entry_point_~p~0.base == 0 && entry_point_~p~0.offset == 0; 429#L772 entry_point_~j~0 := entry_point_~i~0 - 1; 425#L773-3 [2021-10-28 23:25:18,543 INFO L793 eck$LassoCheckResult]: Loop: 425#L773-3 assume !!(entry_point_~j~0 >= 0);call entry_point_#t~mem42.base, entry_point_#t~mem42.offset := read~$Pointer$(entry_point_~array~0.base, entry_point_~array~0.offset + 4 * entry_point_~j~0, 4);call ULTIMATE.dealloc(entry_point_#t~mem42.base, entry_point_#t~mem42.offset);havoc entry_point_#t~mem42.base, entry_point_#t~mem42.offset; 426#L773-2 entry_point_#t~post41 := entry_point_~j~0;entry_point_~j~0 := entry_point_#t~post41 - 1;havoc entry_point_#t~post41; 425#L773-3 [2021-10-28 23:25:18,544 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:25:18,544 INFO L85 PathProgramCache]: Analyzing trace with hash -1033365559, now seen corresponding path program 1 times [2021-10-28 23:25:18,544 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 23:25:18,544 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1682143109] [2021-10-28 23:25:18,544 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:25:18,544 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 23:25:18,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 23:25:18,555 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-28 23:25:18,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 23:25:18,567 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-28 23:25:18,568 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:25:18,568 INFO L85 PathProgramCache]: Analyzing trace with hash 2435, now seen corresponding path program 5 times [2021-10-28 23:25:18,568 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 23:25:18,568 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1391683564] [2021-10-28 23:25:18,568 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:25:18,568 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 23:25:18,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 23:25:18,572 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-28 23:25:18,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 23:25:18,575 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-28 23:25:18,576 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:25:18,576 INFO L85 PathProgramCache]: Analyzing trace with hash -926855349, now seen corresponding path program 1 times [2021-10-28 23:25:18,576 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 23:25:18,576 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1812030017] [2021-10-28 23:25:18,576 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:25:18,577 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 23:25:18,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 23:25:18,588 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-28 23:25:18,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 23:25:18,604 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-28 23:25:19,549 INFO L210 LassoAnalysis]: Preferences: [2021-10-28 23:25:19,549 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-10-28 23:25:19,549 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-10-28 23:25:19,549 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-10-28 23:25:19,549 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2021-10-28 23:25:19,549 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:25:19,549 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-10-28 23:25:19,549 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-10-28 23:25:19,549 INFO L133 ssoRankerPreferences]: Filename of dumped script: memleaks_test18.i_Iteration7_Lasso [2021-10-28 23:25:19,550 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-10-28 23:25:19,550 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-10-28 23:25:19,554 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 23:25:19,755 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 23:25:19,761 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 23:25:19,763 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 23:25:19,766 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 23:25:19,769 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 23:25:19,771 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 23:25:19,774 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 23:25:19,777 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 23:25:19,779 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 23:25:19,781 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 23:25:19,783 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 23:25:19,785 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 23:25:19,788 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 23:25:19,791 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 23:25:19,793 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 23:25:19,796 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 23:25:19,801 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 23:25:19,804 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 23:25:19,806 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 23:25:19,808 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 23:25:19,811 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 23:25:19,813 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 23:25:20,237 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-10-28 23:25:20,238 INFO L490 LassoAnalysis]: Using template 'affine'. [2021-10-28 23:25:20,238 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:25:20,238 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a8afc68-0330-4f74-b825-0d332d587047/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:25:20,241 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a8afc68-0330-4f74-b825-0d332d587047/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:25:20,246 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a8afc68-0330-4f74-b825-0d332d587047/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Waiting until timeout for monitored process [2021-10-28 23:25:20,247 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 23:25:20,260 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 23:25:20,260 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 23:25:20,260 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 23:25:20,260 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 23:25:20,262 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-28 23:25:20,263 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-28 23:25:20,272 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 23:25:20,306 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a8afc68-0330-4f74-b825-0d332d587047/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Ended with exit code 0 [2021-10-28 23:25:20,306 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:25:20,306 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a8afc68-0330-4f74-b825-0d332d587047/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:25:20,308 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a8afc68-0330-4f74-b825-0d332d587047/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:25:20,319 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 23:25:20,320 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a8afc68-0330-4f74-b825-0d332d587047/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Waiting until timeout for monitored process [2021-10-28 23:25:20,328 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 23:25:20,328 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 23:25:20,328 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 23:25:20,328 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 23:25:20,328 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 23:25:20,329 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-28 23:25:20,329 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 23:25:20,342 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 23:25:20,374 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a8afc68-0330-4f74-b825-0d332d587047/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Forceful destruction successful, exit code 0 [2021-10-28 23:25:20,374 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:25:20,374 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a8afc68-0330-4f74-b825-0d332d587047/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:25:20,375 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a8afc68-0330-4f74-b825-0d332d587047/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:25:20,376 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a8afc68-0330-4f74-b825-0d332d587047/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Waiting until timeout for monitored process [2021-10-28 23:25:20,377 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 23:25:20,384 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 23:25:20,384 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 23:25:20,384 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 23:25:20,384 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 23:25:20,387 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-28 23:25:20,387 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-28 23:25:20,390 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 23:25:20,415 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a8afc68-0330-4f74-b825-0d332d587047/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Forceful destruction successful, exit code 0 [2021-10-28 23:25:20,415 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:25:20,415 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a8afc68-0330-4f74-b825-0d332d587047/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:25:20,416 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a8afc68-0330-4f74-b825-0d332d587047/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:25:20,420 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a8afc68-0330-4f74-b825-0d332d587047/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Waiting until timeout for monitored process [2021-10-28 23:25:20,421 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 23:25:20,428 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 23:25:20,428 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 23:25:20,428 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 23:25:20,428 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 23:25:20,428 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 23:25:20,429 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-28 23:25:20,429 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 23:25:20,459 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 23:25:20,481 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a8afc68-0330-4f74-b825-0d332d587047/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Forceful destruction successful, exit code 0 [2021-10-28 23:25:20,481 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:25:20,481 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a8afc68-0330-4f74-b825-0d332d587047/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:25:20,482 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a8afc68-0330-4f74-b825-0d332d587047/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:25:20,483 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a8afc68-0330-4f74-b825-0d332d587047/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Waiting until timeout for monitored process [2021-10-28 23:25:20,484 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 23:25:20,491 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 23:25:20,491 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 23:25:20,491 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 23:25:20,491 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 23:25:20,493 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-28 23:25:20,493 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-28 23:25:20,503 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 23:25:20,523 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a8afc68-0330-4f74-b825-0d332d587047/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Forceful destruction successful, exit code 0 [2021-10-28 23:25:20,523 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:25:20,523 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a8afc68-0330-4f74-b825-0d332d587047/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:25:20,524 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a8afc68-0330-4f74-b825-0d332d587047/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:25:20,525 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 23:25:20,526 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a8afc68-0330-4f74-b825-0d332d587047/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Waiting until timeout for monitored process [2021-10-28 23:25:20,533 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 23:25:20,533 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 23:25:20,533 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 23:25:20,533 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 23:25:20,533 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 23:25:20,534 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-28 23:25:20,534 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 23:25:20,544 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 23:25:20,569 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a8afc68-0330-4f74-b825-0d332d587047/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Forceful destruction successful, exit code 0 [2021-10-28 23:25:20,569 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:25:20,569 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a8afc68-0330-4f74-b825-0d332d587047/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:25:20,570 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a8afc68-0330-4f74-b825-0d332d587047/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:25:20,572 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 23:25:20,573 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a8afc68-0330-4f74-b825-0d332d587047/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (14)] Waiting until timeout for monitored process [2021-10-28 23:25:20,579 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 23:25:20,579 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 23:25:20,579 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 23:25:20,579 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 23:25:20,581 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-28 23:25:20,581 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-28 23:25:20,583 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 23:25:20,603 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a8afc68-0330-4f74-b825-0d332d587047/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (14)] Ended with exit code 0 [2021-10-28 23:25:20,603 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:25:20,603 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a8afc68-0330-4f74-b825-0d332d587047/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:25:20,607 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a8afc68-0330-4f74-b825-0d332d587047/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:25:20,608 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a8afc68-0330-4f74-b825-0d332d587047/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (15)] Waiting until timeout for monitored process [2021-10-28 23:25:20,611 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 23:25:20,618 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 23:25:20,619 INFO L203 nArgumentSynthesizer]: 4 stem disjuncts [2021-10-28 23:25:20,619 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 23:25:20,619 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 23:25:20,630 INFO L401 nArgumentSynthesizer]: We have 12 Motzkin's Theorem applications. [2021-10-28 23:25:20,630 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-28 23:25:20,651 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 23:25:20,681 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a8afc68-0330-4f74-b825-0d332d587047/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (15)] Ended with exit code 0 [2021-10-28 23:25:20,682 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:25:20,682 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a8afc68-0330-4f74-b825-0d332d587047/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:25:20,683 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a8afc68-0330-4f74-b825-0d332d587047/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:25:20,686 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a8afc68-0330-4f74-b825-0d332d587047/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (16)] Waiting until timeout for monitored process [2021-10-28 23:25:20,686 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 23:25:20,694 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 23:25:20,694 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 23:25:20,694 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 23:25:20,694 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 23:25:20,694 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 23:25:20,694 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-28 23:25:20,694 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 23:25:20,696 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 23:25:20,716 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a8afc68-0330-4f74-b825-0d332d587047/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (16)] Forceful destruction successful, exit code 0 [2021-10-28 23:25:20,716 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:25:20,716 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a8afc68-0330-4f74-b825-0d332d587047/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:25:20,717 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a8afc68-0330-4f74-b825-0d332d587047/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:25:20,724 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a8afc68-0330-4f74-b825-0d332d587047/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (17)] Waiting until timeout for monitored process [2021-10-28 23:25:20,725 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 23:25:20,732 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 23:25:20,732 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 23:25:20,732 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 23:25:20,732 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 23:25:20,734 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-28 23:25:20,734 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-28 23:25:20,753 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 23:25:20,775 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a8afc68-0330-4f74-b825-0d332d587047/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (17)] Forceful destruction successful, exit code 0 [2021-10-28 23:25:20,776 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:25:20,776 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a8afc68-0330-4f74-b825-0d332d587047/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:25:20,776 INFO L229 MonitoredProcess]: Starting monitored process 18 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a8afc68-0330-4f74-b825-0d332d587047/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:25:20,777 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a8afc68-0330-4f74-b825-0d332d587047/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (18)] Waiting until timeout for monitored process [2021-10-28 23:25:20,778 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 [2021-10-28 23:25:20,784 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 23:25:20,785 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 23:25:20,785 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 23:25:20,785 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 23:25:20,785 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 23:25:20,785 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-28 23:25:20,786 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 23:25:20,800 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 23:25:20,824 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a8afc68-0330-4f74-b825-0d332d587047/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (18)] Forceful destruction successful, exit code 0 [2021-10-28 23:25:20,825 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:25:20,825 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a8afc68-0330-4f74-b825-0d332d587047/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:25:20,825 INFO L229 MonitoredProcess]: Starting monitored process 19 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a8afc68-0330-4f74-b825-0d332d587047/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:25:20,827 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a8afc68-0330-4f74-b825-0d332d587047/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (19)] Waiting until timeout for monitored process [2021-10-28 23:25:20,827 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 23:25:20,835 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 23:25:20,835 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 23:25:20,835 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 23:25:20,835 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 23:25:20,837 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-28 23:25:20,837 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-28 23:25:20,843 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 23:25:20,865 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a8afc68-0330-4f74-b825-0d332d587047/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (19)] Forceful destruction successful, exit code 0 [2021-10-28 23:25:20,865 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:25:20,866 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a8afc68-0330-4f74-b825-0d332d587047/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:25:20,866 INFO L229 MonitoredProcess]: Starting monitored process 20 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a8afc68-0330-4f74-b825-0d332d587047/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:25:20,873 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 [2021-10-28 23:25:20,874 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a8afc68-0330-4f74-b825-0d332d587047/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (20)] Waiting until timeout for monitored process [2021-10-28 23:25:20,880 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 23:25:20,881 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 23:25:20,881 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 23:25:20,881 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 23:25:20,886 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-28 23:25:20,887 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-28 23:25:20,911 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2021-10-28 23:25:20,947 INFO L443 ModelExtractionUtils]: Simplification made 13 calls to the SMT solver. [2021-10-28 23:25:20,947 INFO L444 ModelExtractionUtils]: 3 out of 22 variables were initially zero. Simplification set additionally 16 variables to zero. [2021-10-28 23:25:20,947 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:25:20,947 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a8afc68-0330-4f74-b825-0d332d587047/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:25:20,955 INFO L229 MonitoredProcess]: Starting monitored process 21 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a8afc68-0330-4f74-b825-0d332d587047/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:25:20,957 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2021-10-28 23:25:20,966 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a8afc68-0330-4f74-b825-0d332d587047/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (21)] Waiting until timeout for monitored process [2021-10-28 23:25:20,984 INFO L438 nArgumentSynthesizer]: Removed 2 redundant supporting invariants from a total of 2. [2021-10-28 23:25:20,985 INFO L513 LassoAnalysis]: Proved termination. [2021-10-28 23:25:20,985 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_entry_point_~j~0) = 2*ULTIMATE.start_entry_point_~j~0 + 1 Supporting invariants [] [2021-10-28 23:25:21,018 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a8afc68-0330-4f74-b825-0d332d587047/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (20)] Forceful destruction successful, exit code 0 [2021-10-28 23:25:21,033 INFO L297 tatePredicateManager]: 6 out of 6 supporting invariants were superfluous and have been removed [2021-10-28 23:25:21,088 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:25:21,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:25:21,109 INFO L263 TraceCheckSpWp]: Trace formula consists of 94 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-28 23:25:21,110 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 23:25:21,129 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a8afc68-0330-4f74-b825-0d332d587047/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (21)] Forceful destruction successful, exit code 0 [2021-10-28 23:25:21,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:25:21,175 INFO L263 TraceCheckSpWp]: Trace formula consists of 10 conjuncts, 4 conjunts are in the unsatisfiable core [2021-10-28 23:25:21,175 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 23:25:21,190 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 23:25:21,191 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates [2021-10-28 23:25:21,191 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 22 states and 26 transitions. cyclomatic complexity: 6 Second operand has 3 states, 3 states have (on average 5.0) internal successors, (15), 3 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 23:25:21,199 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 22 states and 26 transitions. cyclomatic complexity: 6. Second operand has 3 states, 3 states have (on average 5.0) internal successors, (15), 3 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 24 states and 29 transitions. Complement of second has 4 states. [2021-10-28 23:25:21,199 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 3 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2021-10-28 23:25:21,200 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 5.0) internal successors, (15), 3 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 23:25:21,200 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 16 transitions. [2021-10-28 23:25:21,200 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 16 transitions. Stem has 15 letters. Loop has 2 letters. [2021-10-28 23:25:21,201 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-28 23:25:21,201 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 16 transitions. Stem has 17 letters. Loop has 2 letters. [2021-10-28 23:25:21,201 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-28 23:25:21,201 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 16 transitions. Stem has 15 letters. Loop has 4 letters. [2021-10-28 23:25:21,202 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-28 23:25:21,202 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 24 states and 29 transitions. [2021-10-28 23:25:21,202 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2021-10-28 23:25:21,202 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 24 states to 0 states and 0 transitions. [2021-10-28 23:25:21,203 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2021-10-28 23:25:21,203 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2021-10-28 23:25:21,203 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2021-10-28 23:25:21,203 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-28 23:25:21,203 INFO L681 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-10-28 23:25:21,203 INFO L704 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-10-28 23:25:21,203 INFO L587 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-10-28 23:25:21,203 INFO L425 BuchiCegarLoop]: ======== Iteration 8============ [2021-10-28 23:25:21,204 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2021-10-28 23:25:21,204 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2021-10-28 23:25:21,204 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2021-10-28 23:25:21,209 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 28.10 11:25:21 BoogieIcfgContainer [2021-10-28 23:25:21,210 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2021-10-28 23:25:21,210 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-28 23:25:21,210 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-28 23:25:21,210 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-28 23:25:21,211 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.10 11:25:13" (3/4) ... [2021-10-28 23:25:21,214 INFO L140 WitnessPrinter]: No result that supports witness generation found [2021-10-28 23:25:21,214 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-28 23:25:21,215 INFO L168 Benchmark]: Toolchain (without parser) took 8340.21 ms. Allocated memory was 113.2 MB in the beginning and 167.8 MB in the end (delta: 54.5 MB). Free memory was 82.3 MB in the beginning and 125.7 MB in the end (delta: -43.5 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2021-10-28 23:25:21,216 INFO L168 Benchmark]: CDTParser took 0.28 ms. Allocated memory is still 113.2 MB. Free memory is still 69.2 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-10-28 23:25:21,216 INFO L168 Benchmark]: CACSL2BoogieTranslator took 634.90 ms. Allocated memory is still 113.2 MB. Free memory was 82.0 MB in the beginning and 74.6 MB in the end (delta: 7.4 MB). Peak memory consumption was 6.3 MB. Max. memory is 16.1 GB. [2021-10-28 23:25:21,216 INFO L168 Benchmark]: Boogie Procedure Inliner took 50.22 ms. Allocated memory is still 113.2 MB. Free memory was 74.6 MB in the beginning and 72.3 MB in the end (delta: 2.3 MB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-28 23:25:21,217 INFO L168 Benchmark]: Boogie Preprocessor took 57.57 ms. Allocated memory is still 113.2 MB. Free memory was 72.3 MB in the beginning and 71.1 MB in the end (delta: 1.2 MB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-28 23:25:21,217 INFO L168 Benchmark]: RCFGBuilder took 376.88 ms. Allocated memory is still 113.2 MB. Free memory was 71.1 MB in the beginning and 60.4 MB in the end (delta: 10.7 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. [2021-10-28 23:25:21,218 INFO L168 Benchmark]: BuchiAutomizer took 7211.27 ms. Allocated memory was 113.2 MB in the beginning and 167.8 MB in the end (delta: 54.5 MB). Free memory was 60.1 MB in the beginning and 126.8 MB in the end (delta: -66.7 MB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-28 23:25:21,218 INFO L168 Benchmark]: Witness Printer took 3.84 ms. Allocated memory is still 167.8 MB. Free memory was 126.8 MB in the beginning and 125.7 MB in the end (delta: 1.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-28 23:25:21,220 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.28 ms. Allocated memory is still 113.2 MB. Free memory is still 69.2 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 634.90 ms. Allocated memory is still 113.2 MB. Free memory was 82.0 MB in the beginning and 74.6 MB in the end (delta: 7.4 MB). Peak memory consumption was 6.3 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 50.22 ms. Allocated memory is still 113.2 MB. Free memory was 74.6 MB in the beginning and 72.3 MB in the end (delta: 2.3 MB). There was no memory consumed. Max. memory is 16.1 GB. * Boogie Preprocessor took 57.57 ms. Allocated memory is still 113.2 MB. Free memory was 72.3 MB in the beginning and 71.1 MB in the end (delta: 1.2 MB). There was no memory consumed. Max. memory is 16.1 GB. * RCFGBuilder took 376.88 ms. Allocated memory is still 113.2 MB. Free memory was 71.1 MB in the beginning and 60.4 MB in the end (delta: 10.7 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. * BuchiAutomizer took 7211.27 ms. Allocated memory was 113.2 MB in the beginning and 167.8 MB in the end (delta: 54.5 MB). Free memory was 60.1 MB in the beginning and 126.8 MB in the end (delta: -66.7 MB). There was no memory consumed. Max. memory is 16.1 GB. * Witness Printer took 3.84 ms. Allocated memory is still 167.8 MB. Free memory was 126.8 MB in the beginning and 125.7 MB in the end (delta: 1.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 7 terminating modules (5 trivial, 2 deterministic, 0 nondeterministic). One deterministic module has affine ranking function len + -1 * i and consists of 4 locations. One deterministic module has affine ranking function 2 * j + 1 and consists of 3 locations. 5 modules have a trivial ranking function, the largest among these consists of 7 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 7.1s and 8 iterations. TraceHistogramMax:2. Analysis of lassos took 6.3s. Construction of modules took 0.1s. Büchi inclusion checks took 0.4s. Highest rank in rank-based complementation 3. Minimization of det autom 2. Minimization of nondet autom 5. Automata minimization 0.0s AutomataMinimizationTime, 6 MinimizatonAttempts, 42 StatesRemovedByMinimization, 6 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 22 states and ocurred in iteration 6. Nontrivial modules had stage [2, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 115 SDtfs, 114 SDslu, 114 SDs, 0 SdLazy, 94 SolverSat, 12 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time LassoAnalysisResults: nont0 unkn0 SFLI0 SFLT0 conc1 concLT0 SILN0 SILU4 SILI0 SILT0 lasso2 LassoPreprocessingBenchmarks: Lassos: inital250 mio100 ax111 hnf101 lsp82 ukn53 mio100 lsp56 div100 bol100 ite100 ukn100 eq189 hnf91 smp100 dnf117 smp92 tf100 neg96 sie116 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 48ms VariablesStem: 6 VariablesLoop: 0 DisjunctsStem: 4 DisjunctsLoop: 1 SupportingInvariants: 2 MotzkinApplications: 12 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 0 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 0 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.0s - TerminationAnalysisResult: Termination proven Buchi Automizer proved that your program is terminating RESULT: Ultimate proved your program to be correct! [2021-10-28 23:25:21,266 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a8afc68-0330-4f74-b825-0d332d587047/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2021-10-28 23:25:21,479 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a8afc68-0330-4f74-b825-0d332d587047/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Ended with exit code 0 Received shutdown request...