./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/termination-memory-alloca/GulwaniJainKoskinen-2009PLDI-Fig1-alloca.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 839c364b Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5c76b4a-cc84-48e5-8fd3-d4665334f85f/bin/uautomizer-DrprNOufMa/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5c76b4a-cc84-48e5-8fd3-d4665334f85f/bin/uautomizer-DrprNOufMa/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5c76b4a-cc84-48e5-8fd3-d4665334f85f/bin/uautomizer-DrprNOufMa/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5c76b4a-cc84-48e5-8fd3-d4665334f85f/bin/uautomizer-DrprNOufMa/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/termination-memory-alloca/GulwaniJainKoskinen-2009PLDI-Fig1-alloca.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5c76b4a-cc84-48e5-8fd3-d4665334f85f/bin/uautomizer-DrprNOufMa/config/svcomp-Termination-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5c76b4a-cc84-48e5-8fd3-d4665334f85f/bin/uautomizer-DrprNOufMa --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(F end) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash d0878af360c86b536b5b3bc8d222f1c5ce26337b4ad6227d126c258cfe065cc9 --- Real Ultimate output --- This is Ultimate 0.2.2-hotfix-svcomp22-839c364 [2021-12-06 22:13:45,424 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-12-06 22:13:45,425 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-12-06 22:13:45,447 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-12-06 22:13:45,448 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-12-06 22:13:45,449 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-12-06 22:13:45,450 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-12-06 22:13:45,452 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-12-06 22:13:45,453 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-12-06 22:13:45,454 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-12-06 22:13:45,455 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-12-06 22:13:45,456 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-12-06 22:13:45,456 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-12-06 22:13:45,457 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-12-06 22:13:45,458 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-12-06 22:13:45,459 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-12-06 22:13:45,460 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-12-06 22:13:45,461 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-12-06 22:13:45,463 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-12-06 22:13:45,465 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-12-06 22:13:45,466 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-12-06 22:13:45,467 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-12-06 22:13:45,468 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-12-06 22:13:45,469 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-12-06 22:13:45,472 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-12-06 22:13:45,472 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-12-06 22:13:45,472 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-12-06 22:13:45,473 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-12-06 22:13:45,474 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-12-06 22:13:45,474 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-12-06 22:13:45,475 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-12-06 22:13:45,475 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-12-06 22:13:45,476 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-12-06 22:13:45,477 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-12-06 22:13:45,477 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-12-06 22:13:45,478 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-12-06 22:13:45,478 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-12-06 22:13:45,479 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-12-06 22:13:45,479 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-12-06 22:13:45,480 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-12-06 22:13:45,480 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-12-06 22:13:45,481 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5c76b4a-cc84-48e5-8fd3-d4665334f85f/bin/uautomizer-DrprNOufMa/config/svcomp-Termination-64bit-Automizer_Default.epf [2021-12-06 22:13:45,499 INFO L113 SettingsManager]: Loading preferences was successful [2021-12-06 22:13:45,499 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-12-06 22:13:45,499 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-12-06 22:13:45,499 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-12-06 22:13:45,500 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-12-06 22:13:45,500 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-12-06 22:13:45,500 INFO L138 SettingsManager]: * Use SBE=true [2021-12-06 22:13:45,500 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2021-12-06 22:13:45,500 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2021-12-06 22:13:45,501 INFO L138 SettingsManager]: * Use old map elimination=false [2021-12-06 22:13:45,501 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2021-12-06 22:13:45,501 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2021-12-06 22:13:45,501 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2021-12-06 22:13:45,501 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-12-06 22:13:45,501 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-12-06 22:13:45,501 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-12-06 22:13:45,501 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-12-06 22:13:45,501 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2021-12-06 22:13:45,502 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2021-12-06 22:13:45,502 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2021-12-06 22:13:45,502 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-12-06 22:13:45,502 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2021-12-06 22:13:45,502 INFO L138 SettingsManager]: * Use constant arrays=true [2021-12-06 22:13:45,502 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2021-12-06 22:13:45,502 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-12-06 22:13:45,502 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-12-06 22:13:45,503 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-12-06 22:13:45,503 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-12-06 22:13:45,503 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-12-06 22:13:45,504 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2021-12-06 22:13:45,504 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_d5c76b4a-cc84-48e5-8fd3-d4665334f85f/bin/uautomizer-DrprNOufMa/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5c76b4a-cc84-48e5-8fd3-d4665334f85f/bin/uautomizer-DrprNOufMa Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> d0878af360c86b536b5b3bc8d222f1c5ce26337b4ad6227d126c258cfe065cc9 [2021-12-06 22:13:45,690 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-12-06 22:13:45,705 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-12-06 22:13:45,707 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-12-06 22:13:45,708 INFO L271 PluginConnector]: Initializing CDTParser... [2021-12-06 22:13:45,708 INFO L275 PluginConnector]: CDTParser initialized [2021-12-06 22:13:45,709 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5c76b4a-cc84-48e5-8fd3-d4665334f85f/bin/uautomizer-DrprNOufMa/../../sv-benchmarks/c/termination-memory-alloca/GulwaniJainKoskinen-2009PLDI-Fig1-alloca.i [2021-12-06 22:13:45,750 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5c76b4a-cc84-48e5-8fd3-d4665334f85f/bin/uautomizer-DrprNOufMa/data/b6e00194f/5cede8fcc2164f88a33cb126d219614a/FLAG87882fdbe [2021-12-06 22:13:46,153 INFO L306 CDTParser]: Found 1 translation units. [2021-12-06 22:13:46,153 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5c76b4a-cc84-48e5-8fd3-d4665334f85f/sv-benchmarks/c/termination-memory-alloca/GulwaniJainKoskinen-2009PLDI-Fig1-alloca.i [2021-12-06 22:13:46,162 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5c76b4a-cc84-48e5-8fd3-d4665334f85f/bin/uautomizer-DrprNOufMa/data/b6e00194f/5cede8fcc2164f88a33cb126d219614a/FLAG87882fdbe [2021-12-06 22:13:46,171 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5c76b4a-cc84-48e5-8fd3-d4665334f85f/bin/uautomizer-DrprNOufMa/data/b6e00194f/5cede8fcc2164f88a33cb126d219614a [2021-12-06 22:13:46,173 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-12-06 22:13:46,174 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-12-06 22:13:46,175 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-12-06 22:13:46,175 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-12-06 22:13:46,177 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-12-06 22:13:46,178 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.12 10:13:46" (1/1) ... [2021-12-06 22:13:46,179 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@49a54f01 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 10:13:46, skipping insertion in model container [2021-12-06 22:13:46,179 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.12 10:13:46" (1/1) ... [2021-12-06 22:13:46,184 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-12-06 22:13:46,207 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-12-06 22:13:46,373 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-06 22:13:46,379 INFO L203 MainTranslator]: Completed pre-run [2021-12-06 22:13:46,414 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-06 22:13:46,435 INFO L208 MainTranslator]: Completed translation [2021-12-06 22:13:46,435 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 10:13:46 WrapperNode [2021-12-06 22:13:46,435 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-12-06 22:13:46,436 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-12-06 22:13:46,436 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-12-06 22:13:46,436 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-12-06 22:13:46,442 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 10:13:46" (1/1) ... [2021-12-06 22:13:46,453 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 10:13:46" (1/1) ... [2021-12-06 22:13:46,490 INFO L137 Inliner]: procedures = 110, calls = 24, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 68 [2021-12-06 22:13:46,490 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-12-06 22:13:46,491 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-12-06 22:13:46,491 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-12-06 22:13:46,491 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-12-06 22:13:46,498 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 10:13:46" (1/1) ... [2021-12-06 22:13:46,499 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 10:13:46" (1/1) ... [2021-12-06 22:13:46,502 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 10:13:46" (1/1) ... [2021-12-06 22:13:46,502 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 10:13:46" (1/1) ... [2021-12-06 22:13:46,506 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 10:13:46" (1/1) ... [2021-12-06 22:13:46,509 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 10:13:46" (1/1) ... [2021-12-06 22:13:46,510 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 10:13:46" (1/1) ... [2021-12-06 22:13:46,513 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-12-06 22:13:46,514 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-12-06 22:13:46,514 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-12-06 22:13:46,514 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-12-06 22:13:46,515 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 10:13:46" (1/1) ... [2021-12-06 22:13:46,522 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-06 22:13:46,530 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5c76b4a-cc84-48e5-8fd3-d4665334f85f/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 22:13:46,539 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5c76b4a-cc84-48e5-8fd3-d4665334f85f/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-06 22:13:46,541 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5c76b4a-cc84-48e5-8fd3-d4665334f85f/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2021-12-06 22:13:46,568 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-12-06 22:13:46,568 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-12-06 22:13:46,569 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-12-06 22:13:46,569 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-12-06 22:13:46,569 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-12-06 22:13:46,569 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-12-06 22:13:46,628 INFO L236 CfgBuilder]: Building ICFG [2021-12-06 22:13:46,629 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-12-06 22:13:46,710 INFO L277 CfgBuilder]: Performing block encoding [2021-12-06 22:13:46,714 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-12-06 22:13:46,714 INFO L301 CfgBuilder]: Removed 1 assume(true) statements. [2021-12-06 22:13:46,716 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.12 10:13:46 BoogieIcfgContainer [2021-12-06 22:13:46,716 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-12-06 22:13:46,716 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2021-12-06 22:13:46,716 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2021-12-06 22:13:46,719 INFO L275 PluginConnector]: BuchiAutomizer initialized [2021-12-06 22:13:46,719 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-12-06 22:13:46,720 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 06.12 10:13:46" (1/3) ... [2021-12-06 22:13:46,720 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@41f6e089 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 06.12 10:13:46, skipping insertion in model container [2021-12-06 22:13:46,720 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-12-06 22:13:46,721 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 10:13:46" (2/3) ... [2021-12-06 22:13:46,721 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@41f6e089 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 06.12 10:13:46, skipping insertion in model container [2021-12-06 22:13:46,721 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-12-06 22:13:46,721 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.12 10:13:46" (3/3) ... [2021-12-06 22:13:46,722 INFO L388 chiAutomizerObserver]: Analyzing ICFG GulwaniJainKoskinen-2009PLDI-Fig1-alloca.i [2021-12-06 22:13:46,754 INFO L359 BuchiCegarLoop]: Interprodecural is true [2021-12-06 22:13:46,754 INFO L360 BuchiCegarLoop]: Hoare is false [2021-12-06 22:13:46,754 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2021-12-06 22:13:46,754 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2021-12-06 22:13:46,754 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-12-06 22:13:46,754 INFO L364 BuchiCegarLoop]: Difference is false [2021-12-06 22:13:46,755 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-12-06 22:13:46,755 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2021-12-06 22:13:46,765 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 12 states, 11 states have (on average 1.4545454545454546) internal successors, (16), 11 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 22:13:46,783 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2021-12-06 22:13:46,783 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-12-06 22:13:46,783 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-12-06 22:13:46,789 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1] [2021-12-06 22:13:46,789 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2021-12-06 22:13:46,789 INFO L425 BuchiCegarLoop]: ======== Iteration 1============ [2021-12-06 22:13:46,789 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 12 states, 11 states have (on average 1.4545454545454546) internal successors, (16), 11 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 22:13:46,791 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2021-12-06 22:13:46,791 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-12-06 22:13:46,791 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-12-06 22:13:46,792 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1] [2021-12-06 22:13:46,792 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2021-12-06 22:13:46,797 INFO L791 eck$LassoCheckResult]: Stem: 5#ULTIMATE.startENTRYtrue assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier; 11#L-1true assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~malloc2#1.base, main_#t~malloc2#1.offset, main_#t~malloc3#1.base, main_#t~malloc3#1.offset, main_#t~nondet4#1, main_#t~nondet5#1, main_#t~mem6#1, main_#t~mem7#1, main_#t~mem8#1, main_#t~short9#1, main_#t~malloc10#1.base, main_#t~malloc10#1.offset, main_#t~mem11#1, main_#t~mem15#1, main_#t~mem16#1, main_#t~mem17#1, main_#t~mem12#1, main_#t~mem13#1, main_#t~nondet14#1, main_~tmp~0#1.base, main_~tmp~0#1.offset, main_~id~0#1.base, main_~id~0#1.offset, main_~maxId~0#1.base, main_~maxId~0#1.offset;call main_#t~malloc2#1.base, main_#t~malloc2#1.offset := #Ultimate.allocOnStack(4);main_~id~0#1.base, main_~id~0#1.offset := main_#t~malloc2#1.base, main_#t~malloc2#1.offset;call main_#t~malloc3#1.base, main_#t~malloc3#1.offset := #Ultimate.allocOnStack(4);main_~maxId~0#1.base, main_~maxId~0#1.offset := main_#t~malloc3#1.base, main_#t~malloc3#1.offset;call write~int(main_#t~nondet4#1, main_~id~0#1.base, main_~id~0#1.offset, 4);havoc main_#t~nondet4#1;call write~int(main_#t~nondet5#1, main_~maxId~0#1.base, main_~maxId~0#1.offset, 4);havoc main_#t~nondet5#1;call main_#t~mem6#1 := read~int(main_~id~0#1.base, main_~id~0#1.offset, 4);main_#t~short9#1 := 0 <= main_#t~mem6#1; 13#L552true assume !main_#t~short9#1; 3#L552-2true assume main_#t~short9#1;havoc main_#t~mem6#1;havoc main_#t~mem7#1;havoc main_#t~mem8#1;havoc main_#t~short9#1;call main_#t~malloc10#1.base, main_#t~malloc10#1.offset := #Ultimate.allocOnStack(4);main_~tmp~0#1.base, main_~tmp~0#1.offset := main_#t~malloc10#1.base, main_#t~malloc10#1.offset;call main_#t~mem11#1 := read~int(main_~id~0#1.base, main_~id~0#1.offset, 4);call write~int(1 + main_#t~mem11#1, main_~tmp~0#1.base, main_~tmp~0#1.offset, 4);havoc main_#t~mem11#1; 9#L556-2true [2021-12-06 22:13:46,797 INFO L793 eck$LassoCheckResult]: Loop: 9#L556-2true call main_#t~mem12#1 := read~int(main_~tmp~0#1.base, main_~tmp~0#1.offset, 4);call main_#t~mem13#1 := read~int(main_~id~0#1.base, main_~id~0#1.offset, 4); 12#L555-1true assume !!(main_#t~mem12#1 != main_#t~mem13#1 && 0 != main_#t~nondet14#1);havoc main_#t~mem12#1;havoc main_#t~mem13#1;havoc main_#t~nondet14#1;call main_#t~mem15#1 := read~int(main_~tmp~0#1.base, main_~tmp~0#1.offset, 4);call main_#t~mem16#1 := read~int(main_~maxId~0#1.base, main_~maxId~0#1.offset, 4); 8#L556true assume main_#t~mem15#1 <= main_#t~mem16#1;havoc main_#t~mem15#1;havoc main_#t~mem16#1;call main_#t~mem17#1 := read~int(main_~tmp~0#1.base, main_~tmp~0#1.offset, 4);call write~int(1 + main_#t~mem17#1, main_~tmp~0#1.base, main_~tmp~0#1.offset, 4);havoc main_#t~mem17#1; 9#L556-2true [2021-12-06 22:13:46,801 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 22:13:46,801 INFO L85 PathProgramCache]: Analyzing trace with hash 925671, now seen corresponding path program 1 times [2021-12-06 22:13:46,808 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 22:13:46,808 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1226433420] [2021-12-06 22:13:46,808 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 22:13:46,809 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 22:13:46,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 22:13:46,941 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-06 22:13:46,942 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 22:13:46,942 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1226433420] [2021-12-06 22:13:46,943 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1226433420] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 22:13:46,943 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 22:13:46,943 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-12-06 22:13:46,945 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1685926964] [2021-12-06 22:13:46,945 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 22:13:46,949 INFO L796 eck$LassoCheckResult]: stem already infeasible [2021-12-06 22:13:46,950 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 22:13:46,951 INFO L85 PathProgramCache]: Analyzing trace with hash 45842, now seen corresponding path program 1 times [2021-12-06 22:13:46,951 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 22:13:46,951 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [531316957] [2021-12-06 22:13:46,951 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 22:13:46,952 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 22:13:46,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-06 22:13:46,973 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-06 22:13:46,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-06 22:13:47,003 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-06 22:13:47,155 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 22:13:47,184 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-06 22:13:47,185 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-06 22:13:47,186 INFO L87 Difference]: Start difference. First operand has 12 states, 11 states have (on average 1.4545454545454546) internal successors, (16), 11 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 3 states, 2 states have (on average 2.0) internal successors, (4), 3 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 22:13:47,200 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 22:13:47,200 INFO L93 Difference]: Finished difference Result 13 states and 16 transitions. [2021-12-06 22:13:47,201 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-06 22:13:47,205 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 13 states and 16 transitions. [2021-12-06 22:13:47,206 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2021-12-06 22:13:47,208 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 13 states to 7 states and 8 transitions. [2021-12-06 22:13:47,208 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 7 [2021-12-06 22:13:47,209 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 7 [2021-12-06 22:13:47,209 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 8 transitions. [2021-12-06 22:13:47,209 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-12-06 22:13:47,209 INFO L681 BuchiCegarLoop]: Abstraction has 7 states and 8 transitions. [2021-12-06 22:13:47,220 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7 states and 8 transitions. [2021-12-06 22:13:47,224 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7 to 7. [2021-12-06 22:13:47,225 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7 states, 7 states have (on average 1.1428571428571428) internal successors, (8), 6 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 22:13:47,225 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 8 transitions. [2021-12-06 22:13:47,226 INFO L704 BuchiCegarLoop]: Abstraction has 7 states and 8 transitions. [2021-12-06 22:13:47,226 INFO L587 BuchiCegarLoop]: Abstraction has 7 states and 8 transitions. [2021-12-06 22:13:47,226 INFO L425 BuchiCegarLoop]: ======== Iteration 2============ [2021-12-06 22:13:47,226 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 7 states and 8 transitions. [2021-12-06 22:13:47,226 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2021-12-06 22:13:47,227 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-12-06 22:13:47,227 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-12-06 22:13:47,227 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1] [2021-12-06 22:13:47,227 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2021-12-06 22:13:47,227 INFO L791 eck$LassoCheckResult]: Stem: 36#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier; 37#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~malloc2#1.base, main_#t~malloc2#1.offset, main_#t~malloc3#1.base, main_#t~malloc3#1.offset, main_#t~nondet4#1, main_#t~nondet5#1, main_#t~mem6#1, main_#t~mem7#1, main_#t~mem8#1, main_#t~short9#1, main_#t~malloc10#1.base, main_#t~malloc10#1.offset, main_#t~mem11#1, main_#t~mem15#1, main_#t~mem16#1, main_#t~mem17#1, main_#t~mem12#1, main_#t~mem13#1, main_#t~nondet14#1, main_~tmp~0#1.base, main_~tmp~0#1.offset, main_~id~0#1.base, main_~id~0#1.offset, main_~maxId~0#1.base, main_~maxId~0#1.offset;call main_#t~malloc2#1.base, main_#t~malloc2#1.offset := #Ultimate.allocOnStack(4);main_~id~0#1.base, main_~id~0#1.offset := main_#t~malloc2#1.base, main_#t~malloc2#1.offset;call main_#t~malloc3#1.base, main_#t~malloc3#1.offset := #Ultimate.allocOnStack(4);main_~maxId~0#1.base, main_~maxId~0#1.offset := main_#t~malloc3#1.base, main_#t~malloc3#1.offset;call write~int(main_#t~nondet4#1, main_~id~0#1.base, main_~id~0#1.offset, 4);havoc main_#t~nondet4#1;call write~int(main_#t~nondet5#1, main_~maxId~0#1.base, main_~maxId~0#1.offset, 4);havoc main_#t~nondet5#1;call main_#t~mem6#1 := read~int(main_~id~0#1.base, main_~id~0#1.offset, 4);main_#t~short9#1 := 0 <= main_#t~mem6#1; 40#L552 assume main_#t~short9#1;call main_#t~mem7#1 := read~int(main_~id~0#1.base, main_~id~0#1.offset, 4);call main_#t~mem8#1 := read~int(main_~maxId~0#1.base, main_~maxId~0#1.offset, 4);main_#t~short9#1 := main_#t~mem7#1 < main_#t~mem8#1; 34#L552-2 assume main_#t~short9#1;havoc main_#t~mem6#1;havoc main_#t~mem7#1;havoc main_#t~mem8#1;havoc main_#t~short9#1;call main_#t~malloc10#1.base, main_#t~malloc10#1.offset := #Ultimate.allocOnStack(4);main_~tmp~0#1.base, main_~tmp~0#1.offset := main_#t~malloc10#1.base, main_#t~malloc10#1.offset;call main_#t~mem11#1 := read~int(main_~id~0#1.base, main_~id~0#1.offset, 4);call write~int(1 + main_#t~mem11#1, main_~tmp~0#1.base, main_~tmp~0#1.offset, 4);havoc main_#t~mem11#1; 35#L556-2 [2021-12-06 22:13:47,227 INFO L793 eck$LassoCheckResult]: Loop: 35#L556-2 call main_#t~mem12#1 := read~int(main_~tmp~0#1.base, main_~tmp~0#1.offset, 4);call main_#t~mem13#1 := read~int(main_~id~0#1.base, main_~id~0#1.offset, 4); 39#L555-1 assume !!(main_#t~mem12#1 != main_#t~mem13#1 && 0 != main_#t~nondet14#1);havoc main_#t~mem12#1;havoc main_#t~mem13#1;havoc main_#t~nondet14#1;call main_#t~mem15#1 := read~int(main_~tmp~0#1.base, main_~tmp~0#1.offset, 4);call main_#t~mem16#1 := read~int(main_~maxId~0#1.base, main_~maxId~0#1.offset, 4); 38#L556 assume main_#t~mem15#1 <= main_#t~mem16#1;havoc main_#t~mem15#1;havoc main_#t~mem16#1;call main_#t~mem17#1 := read~int(main_~tmp~0#1.base, main_~tmp~0#1.offset, 4);call write~int(1 + main_#t~mem17#1, main_~tmp~0#1.base, main_~tmp~0#1.offset, 4);havoc main_#t~mem17#1; 35#L556-2 [2021-12-06 22:13:47,228 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 22:13:47,228 INFO L85 PathProgramCache]: Analyzing trace with hash 925609, now seen corresponding path program 1 times [2021-12-06 22:13:47,228 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 22:13:47,228 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1215229133] [2021-12-06 22:13:47,228 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 22:13:47,228 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 22:13:47,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-06 22:13:47,254 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-06 22:13:47,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-06 22:13:47,283 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-06 22:13:47,283 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 22:13:47,283 INFO L85 PathProgramCache]: Analyzing trace with hash 45842, now seen corresponding path program 2 times [2021-12-06 22:13:47,283 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 22:13:47,284 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1603443281] [2021-12-06 22:13:47,284 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 22:13:47,284 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 22:13:47,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-06 22:13:47,292 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-06 22:13:47,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-06 22:13:47,300 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-06 22:13:47,301 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 22:13:47,301 INFO L85 PathProgramCache]: Analyzing trace with hash 1805029994, now seen corresponding path program 1 times [2021-12-06 22:13:47,301 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 22:13:47,301 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [553564058] [2021-12-06 22:13:47,301 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 22:13:47,301 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 22:13:47,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-06 22:13:47,333 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-06 22:13:47,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-06 22:13:47,357 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-06 22:13:48,085 INFO L210 LassoAnalysis]: Preferences: [2021-12-06 22:13:48,086 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-12-06 22:13:48,086 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-12-06 22:13:48,086 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-12-06 22:13:48,086 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2021-12-06 22:13:48,086 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-06 22:13:48,086 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-12-06 22:13:48,086 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-12-06 22:13:48,086 INFO L133 ssoRankerPreferences]: Filename of dumped script: GulwaniJainKoskinen-2009PLDI-Fig1-alloca.i_Iteration2_Lasso [2021-12-06 22:13:48,086 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-12-06 22:13:48,087 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-12-06 22:13:48,104 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-06 22:13:48,108 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-06 22:13:48,109 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-06 22:13:48,111 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-06 22:13:48,112 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-06 22:13:48,114 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-06 22:13:48,115 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-06 22:13:48,116 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-06 22:13:48,118 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-06 22:13:48,119 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-06 22:13:48,120 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-06 22:13:48,121 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-06 22:13:48,123 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-06 22:13:48,125 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-06 22:13:48,126 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-06 22:13:48,127 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-06 22:13:48,129 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-06 22:13:48,130 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-06 22:13:48,131 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-06 22:13:48,132 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-06 22:13:48,365 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-06 22:13:48,647 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-12-06 22:13:48,652 INFO L490 LassoAnalysis]: Using template 'affine'. [2021-12-06 22:13:48,653 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-06 22:13:48,653 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5c76b4a-cc84-48e5-8fd3-d4665334f85f/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 22:13:48,654 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5c76b4a-cc84-48e5-8fd3-d4665334f85f/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-06 22:13:48,655 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5c76b4a-cc84-48e5-8fd3-d4665334f85f/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Waiting until timeout for monitored process [2021-12-06 22:13:48,656 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-12-06 22:13:48,665 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-06 22:13:48,665 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-12-06 22:13:48,666 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-06 22:13:48,666 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-06 22:13:48,666 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-06 22:13:48,667 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-12-06 22:13:48,668 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-12-06 22:13:48,669 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-06 22:13:48,702 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5c76b4a-cc84-48e5-8fd3-d4665334f85f/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Forceful destruction successful, exit code 0 [2021-12-06 22:13:48,702 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-06 22:13:48,702 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5c76b4a-cc84-48e5-8fd3-d4665334f85f/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 22:13:48,703 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5c76b4a-cc84-48e5-8fd3-d4665334f85f/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-06 22:13:48,704 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5c76b4a-cc84-48e5-8fd3-d4665334f85f/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Waiting until timeout for monitored process [2021-12-06 22:13:48,704 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-12-06 22:13:48,712 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-06 22:13:48,712 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-12-06 22:13:48,712 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-06 22:13:48,712 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-06 22:13:48,713 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-06 22:13:48,713 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-12-06 22:13:48,713 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-12-06 22:13:48,714 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-06 22:13:48,733 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5c76b4a-cc84-48e5-8fd3-d4665334f85f/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Ended with exit code 0 [2021-12-06 22:13:48,733 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-06 22:13:48,733 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5c76b4a-cc84-48e5-8fd3-d4665334f85f/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 22:13:48,734 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5c76b4a-cc84-48e5-8fd3-d4665334f85f/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-06 22:13:48,734 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5c76b4a-cc84-48e5-8fd3-d4665334f85f/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Waiting until timeout for monitored process [2021-12-06 22:13:48,735 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-12-06 22:13:48,742 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-06 22:13:48,742 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-06 22:13:48,742 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-06 22:13:48,742 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-06 22:13:48,745 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-12-06 22:13:48,745 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-12-06 22:13:48,747 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-06 22:13:48,766 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5c76b4a-cc84-48e5-8fd3-d4665334f85f/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Ended with exit code 0 [2021-12-06 22:13:48,766 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-06 22:13:48,766 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5c76b4a-cc84-48e5-8fd3-d4665334f85f/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 22:13:48,767 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5c76b4a-cc84-48e5-8fd3-d4665334f85f/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-06 22:13:48,767 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5c76b4a-cc84-48e5-8fd3-d4665334f85f/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Waiting until timeout for monitored process [2021-12-06 22:13:48,768 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-12-06 22:13:48,774 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-06 22:13:48,775 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-12-06 22:13:48,775 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-06 22:13:48,775 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-06 22:13:48,775 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-06 22:13:48,775 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-12-06 22:13:48,775 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-12-06 22:13:48,776 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-06 22:13:48,795 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5c76b4a-cc84-48e5-8fd3-d4665334f85f/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Ended with exit code 0 [2021-12-06 22:13:48,795 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-06 22:13:48,795 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5c76b4a-cc84-48e5-8fd3-d4665334f85f/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 22:13:48,796 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5c76b4a-cc84-48e5-8fd3-d4665334f85f/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-06 22:13:48,796 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5c76b4a-cc84-48e5-8fd3-d4665334f85f/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Waiting until timeout for monitored process [2021-12-06 22:13:48,797 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-12-06 22:13:48,804 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-06 22:13:48,804 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-12-06 22:13:48,804 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-06 22:13:48,804 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-06 22:13:48,804 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-06 22:13:48,805 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-12-06 22:13:48,805 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-12-06 22:13:48,806 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-06 22:13:48,824 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5c76b4a-cc84-48e5-8fd3-d4665334f85f/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Ended with exit code 0 [2021-12-06 22:13:48,824 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-06 22:13:48,825 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5c76b4a-cc84-48e5-8fd3-d4665334f85f/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 22:13:48,825 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5c76b4a-cc84-48e5-8fd3-d4665334f85f/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-06 22:13:48,826 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5c76b4a-cc84-48e5-8fd3-d4665334f85f/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Waiting until timeout for monitored process [2021-12-06 22:13:48,826 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-12-06 22:13:48,833 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-06 22:13:48,833 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-06 22:13:48,833 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-06 22:13:48,833 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-06 22:13:48,835 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-12-06 22:13:48,835 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-12-06 22:13:48,838 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-06 22:13:48,869 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5c76b4a-cc84-48e5-8fd3-d4665334f85f/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Ended with exit code 0 [2021-12-06 22:13:48,869 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-06 22:13:48,870 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5c76b4a-cc84-48e5-8fd3-d4665334f85f/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 22:13:48,870 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5c76b4a-cc84-48e5-8fd3-d4665334f85f/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-06 22:13:48,872 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5c76b4a-cc84-48e5-8fd3-d4665334f85f/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Waiting until timeout for monitored process [2021-12-06 22:13:48,872 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-12-06 22:13:48,879 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-06 22:13:48,879 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-12-06 22:13:48,879 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-06 22:13:48,879 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-06 22:13:48,880 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-06 22:13:48,880 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-12-06 22:13:48,880 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-12-06 22:13:48,881 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-06 22:13:48,899 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5c76b4a-cc84-48e5-8fd3-d4665334f85f/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Ended with exit code 0 [2021-12-06 22:13:48,899 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-06 22:13:48,900 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5c76b4a-cc84-48e5-8fd3-d4665334f85f/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 22:13:48,900 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5c76b4a-cc84-48e5-8fd3-d4665334f85f/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-06 22:13:48,901 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5c76b4a-cc84-48e5-8fd3-d4665334f85f/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Waiting until timeout for monitored process [2021-12-06 22:13:48,902 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-12-06 22:13:48,909 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-06 22:13:48,909 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-06 22:13:48,909 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-06 22:13:48,909 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-06 22:13:48,911 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-12-06 22:13:48,911 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-12-06 22:13:48,914 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-06 22:13:48,933 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5c76b4a-cc84-48e5-8fd3-d4665334f85f/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Ended with exit code 0 [2021-12-06 22:13:48,933 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-06 22:13:48,933 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5c76b4a-cc84-48e5-8fd3-d4665334f85f/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 22:13:48,934 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5c76b4a-cc84-48e5-8fd3-d4665334f85f/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-06 22:13:48,934 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5c76b4a-cc84-48e5-8fd3-d4665334f85f/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Waiting until timeout for monitored process [2021-12-06 22:13:48,935 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-12-06 22:13:48,942 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-06 22:13:48,942 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-12-06 22:13:48,942 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-06 22:13:48,942 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-06 22:13:48,942 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-06 22:13:48,942 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-12-06 22:13:48,942 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-12-06 22:13:48,943 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-06 22:13:48,962 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5c76b4a-cc84-48e5-8fd3-d4665334f85f/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Ended with exit code 0 [2021-12-06 22:13:48,962 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-06 22:13:48,962 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5c76b4a-cc84-48e5-8fd3-d4665334f85f/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 22:13:48,963 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5c76b4a-cc84-48e5-8fd3-d4665334f85f/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-06 22:13:48,964 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5c76b4a-cc84-48e5-8fd3-d4665334f85f/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Waiting until timeout for monitored process [2021-12-06 22:13:48,964 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-12-06 22:13:48,971 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-06 22:13:48,971 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-12-06 22:13:48,971 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-06 22:13:48,971 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-06 22:13:48,971 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-06 22:13:48,972 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-12-06 22:13:48,972 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-12-06 22:13:48,973 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-06 22:13:48,993 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5c76b4a-cc84-48e5-8fd3-d4665334f85f/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Forceful destruction successful, exit code 0 [2021-12-06 22:13:48,993 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-06 22:13:48,993 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5c76b4a-cc84-48e5-8fd3-d4665334f85f/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 22:13:48,994 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5c76b4a-cc84-48e5-8fd3-d4665334f85f/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-06 22:13:48,995 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5c76b4a-cc84-48e5-8fd3-d4665334f85f/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Waiting until timeout for monitored process [2021-12-06 22:13:48,995 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-12-06 22:13:49,002 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-06 22:13:49,003 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-12-06 22:13:49,003 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-06 22:13:49,003 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-06 22:13:49,003 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-06 22:13:49,003 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-12-06 22:13:49,003 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-12-06 22:13:49,004 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-06 22:13:49,022 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5c76b4a-cc84-48e5-8fd3-d4665334f85f/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Ended with exit code 0 [2021-12-06 22:13:49,022 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-06 22:13:49,023 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5c76b4a-cc84-48e5-8fd3-d4665334f85f/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 22:13:49,023 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5c76b4a-cc84-48e5-8fd3-d4665334f85f/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-06 22:13:49,024 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5c76b4a-cc84-48e5-8fd3-d4665334f85f/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Waiting until timeout for monitored process [2021-12-06 22:13:49,024 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-12-06 22:13:49,031 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-06 22:13:49,031 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-06 22:13:49,031 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-06 22:13:49,031 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-06 22:13:49,032 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-12-06 22:13:49,033 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-12-06 22:13:49,035 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-06 22:13:49,053 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5c76b4a-cc84-48e5-8fd3-d4665334f85f/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Ended with exit code 0 [2021-12-06 22:13:49,054 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-06 22:13:49,054 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5c76b4a-cc84-48e5-8fd3-d4665334f85f/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 22:13:49,054 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5c76b4a-cc84-48e5-8fd3-d4665334f85f/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-06 22:13:49,055 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5c76b4a-cc84-48e5-8fd3-d4665334f85f/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (14)] Waiting until timeout for monitored process [2021-12-06 22:13:49,055 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-12-06 22:13:49,062 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-06 22:13:49,063 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-06 22:13:49,063 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-06 22:13:49,063 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-06 22:13:49,065 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-12-06 22:13:49,065 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-12-06 22:13:49,068 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-06 22:13:49,086 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5c76b4a-cc84-48e5-8fd3-d4665334f85f/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (14)] Forceful destruction successful, exit code 0 [2021-12-06 22:13:49,086 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-06 22:13:49,086 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5c76b4a-cc84-48e5-8fd3-d4665334f85f/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 22:13:49,087 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5c76b4a-cc84-48e5-8fd3-d4665334f85f/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-06 22:13:49,088 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5c76b4a-cc84-48e5-8fd3-d4665334f85f/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (15)] Waiting until timeout for monitored process [2021-12-06 22:13:49,088 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-12-06 22:13:49,095 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-06 22:13:49,095 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-12-06 22:13:49,095 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-06 22:13:49,095 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-06 22:13:49,095 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-06 22:13:49,096 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-12-06 22:13:49,096 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-12-06 22:13:49,097 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-06 22:13:49,115 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5c76b4a-cc84-48e5-8fd3-d4665334f85f/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (15)] Forceful destruction successful, exit code 0 [2021-12-06 22:13:49,115 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-06 22:13:49,116 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5c76b4a-cc84-48e5-8fd3-d4665334f85f/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 22:13:49,116 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5c76b4a-cc84-48e5-8fd3-d4665334f85f/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-06 22:13:49,117 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5c76b4a-cc84-48e5-8fd3-d4665334f85f/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (16)] Waiting until timeout for monitored process [2021-12-06 22:13:49,117 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-12-06 22:13:49,124 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-06 22:13:49,124 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-12-06 22:13:49,124 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-06 22:13:49,124 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-06 22:13:49,124 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-06 22:13:49,125 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-12-06 22:13:49,125 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-12-06 22:13:49,126 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-06 22:13:49,144 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5c76b4a-cc84-48e5-8fd3-d4665334f85f/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (16)] Ended with exit code 0 [2021-12-06 22:13:49,144 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-06 22:13:49,144 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5c76b4a-cc84-48e5-8fd3-d4665334f85f/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 22:13:49,145 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5c76b4a-cc84-48e5-8fd3-d4665334f85f/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-06 22:13:49,145 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5c76b4a-cc84-48e5-8fd3-d4665334f85f/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (17)] Waiting until timeout for monitored process [2021-12-06 22:13:49,146 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-12-06 22:13:49,153 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-06 22:13:49,153 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-12-06 22:13:49,153 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-06 22:13:49,153 INFO L204 nArgumentSynthesizer]: 2 loop disjuncts [2021-12-06 22:13:49,153 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-06 22:13:49,154 INFO L401 nArgumentSynthesizer]: We have 4 Motzkin's Theorem applications. [2021-12-06 22:13:49,154 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-12-06 22:13:49,155 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-06 22:13:49,173 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5c76b4a-cc84-48e5-8fd3-d4665334f85f/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (17)] Forceful destruction successful, exit code 0 [2021-12-06 22:13:49,173 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-06 22:13:49,173 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5c76b4a-cc84-48e5-8fd3-d4665334f85f/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 22:13:49,174 INFO L229 MonitoredProcess]: Starting monitored process 18 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5c76b4a-cc84-48e5-8fd3-d4665334f85f/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-06 22:13:49,175 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5c76b4a-cc84-48e5-8fd3-d4665334f85f/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (18)] Waiting until timeout for monitored process [2021-12-06 22:13:49,176 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-12-06 22:13:49,183 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-06 22:13:49,183 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-12-06 22:13:49,183 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-06 22:13:49,183 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-06 22:13:49,183 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-06 22:13:49,183 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-12-06 22:13:49,184 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-12-06 22:13:49,184 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-06 22:13:49,203 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5c76b4a-cc84-48e5-8fd3-d4665334f85f/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (18)] Forceful destruction successful, exit code 0 [2021-12-06 22:13:49,203 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-06 22:13:49,203 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5c76b4a-cc84-48e5-8fd3-d4665334f85f/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 22:13:49,204 INFO L229 MonitoredProcess]: Starting monitored process 19 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5c76b4a-cc84-48e5-8fd3-d4665334f85f/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-06 22:13:49,204 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5c76b4a-cc84-48e5-8fd3-d4665334f85f/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (19)] Waiting until timeout for monitored process [2021-12-06 22:13:49,205 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-12-06 22:13:49,212 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-06 22:13:49,212 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-12-06 22:13:49,212 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-06 22:13:49,212 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-06 22:13:49,212 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-06 22:13:49,212 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-12-06 22:13:49,212 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-12-06 22:13:49,213 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-06 22:13:49,231 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5c76b4a-cc84-48e5-8fd3-d4665334f85f/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (19)] Ended with exit code 0 [2021-12-06 22:13:49,232 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-06 22:13:49,232 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5c76b4a-cc84-48e5-8fd3-d4665334f85f/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 22:13:49,232 INFO L229 MonitoredProcess]: Starting monitored process 20 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5c76b4a-cc84-48e5-8fd3-d4665334f85f/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-06 22:13:49,233 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5c76b4a-cc84-48e5-8fd3-d4665334f85f/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (20)] Waiting until timeout for monitored process [2021-12-06 22:13:49,234 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-12-06 22:13:49,240 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-06 22:13:49,240 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-06 22:13:49,241 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-06 22:13:49,241 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-06 22:13:49,242 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-12-06 22:13:49,242 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-12-06 22:13:49,244 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-06 22:13:49,262 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5c76b4a-cc84-48e5-8fd3-d4665334f85f/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (20)] Ended with exit code 0 [2021-12-06 22:13:49,263 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-06 22:13:49,263 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5c76b4a-cc84-48e5-8fd3-d4665334f85f/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 22:13:49,263 INFO L229 MonitoredProcess]: Starting monitored process 21 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5c76b4a-cc84-48e5-8fd3-d4665334f85f/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-06 22:13:49,266 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5c76b4a-cc84-48e5-8fd3-d4665334f85f/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (21)] Waiting until timeout for monitored process [2021-12-06 22:13:49,266 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-12-06 22:13:49,273 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-06 22:13:49,273 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-06 22:13:49,274 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-06 22:13:49,274 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-06 22:13:49,275 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-12-06 22:13:49,276 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-12-06 22:13:49,279 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-06 22:13:49,298 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5c76b4a-cc84-48e5-8fd3-d4665334f85f/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (21)] Ended with exit code 0 [2021-12-06 22:13:49,298 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-06 22:13:49,298 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5c76b4a-cc84-48e5-8fd3-d4665334f85f/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 22:13:49,299 INFO L229 MonitoredProcess]: Starting monitored process 22 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5c76b4a-cc84-48e5-8fd3-d4665334f85f/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-06 22:13:49,299 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5c76b4a-cc84-48e5-8fd3-d4665334f85f/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (22)] Waiting until timeout for monitored process [2021-12-06 22:13:49,300 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-12-06 22:13:49,307 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-06 22:13:49,307 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-06 22:13:49,307 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-06 22:13:49,307 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-06 22:13:49,309 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-12-06 22:13:49,309 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-12-06 22:13:49,313 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-06 22:13:49,331 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5c76b4a-cc84-48e5-8fd3-d4665334f85f/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (22)] Ended with exit code 0 [2021-12-06 22:13:49,331 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-06 22:13:49,331 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5c76b4a-cc84-48e5-8fd3-d4665334f85f/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 22:13:49,332 INFO L229 MonitoredProcess]: Starting monitored process 23 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5c76b4a-cc84-48e5-8fd3-d4665334f85f/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-06 22:13:49,333 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5c76b4a-cc84-48e5-8fd3-d4665334f85f/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (23)] Waiting until timeout for monitored process [2021-12-06 22:13:49,334 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-12-06 22:13:49,340 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-06 22:13:49,340 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-06 22:13:49,340 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-06 22:13:49,341 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-06 22:13:49,342 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-12-06 22:13:49,342 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-12-06 22:13:49,347 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-06 22:13:49,365 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5c76b4a-cc84-48e5-8fd3-d4665334f85f/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (23)] Forceful destruction successful, exit code 0 [2021-12-06 22:13:49,365 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-06 22:13:49,365 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5c76b4a-cc84-48e5-8fd3-d4665334f85f/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 22:13:49,366 INFO L229 MonitoredProcess]: Starting monitored process 24 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5c76b4a-cc84-48e5-8fd3-d4665334f85f/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-06 22:13:49,367 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5c76b4a-cc84-48e5-8fd3-d4665334f85f/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (24)] Waiting until timeout for monitored process [2021-12-06 22:13:49,368 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-12-06 22:13:49,375 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-06 22:13:49,375 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-06 22:13:49,375 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-06 22:13:49,375 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-06 22:13:49,377 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-12-06 22:13:49,377 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-12-06 22:13:49,381 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-06 22:13:49,399 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5c76b4a-cc84-48e5-8fd3-d4665334f85f/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (24)] Forceful destruction successful, exit code 0 [2021-12-06 22:13:49,399 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-06 22:13:49,399 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5c76b4a-cc84-48e5-8fd3-d4665334f85f/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 22:13:49,400 INFO L229 MonitoredProcess]: Starting monitored process 25 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5c76b4a-cc84-48e5-8fd3-d4665334f85f/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-06 22:13:49,401 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5c76b4a-cc84-48e5-8fd3-d4665334f85f/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (25)] Waiting until timeout for monitored process [2021-12-06 22:13:49,401 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-12-06 22:13:49,408 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-06 22:13:49,408 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-06 22:13:49,409 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-06 22:13:49,409 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-06 22:13:49,411 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-12-06 22:13:49,411 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-12-06 22:13:49,418 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-06 22:13:49,436 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5c76b4a-cc84-48e5-8fd3-d4665334f85f/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (25)] Ended with exit code 0 [2021-12-06 22:13:49,436 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-06 22:13:49,436 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5c76b4a-cc84-48e5-8fd3-d4665334f85f/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 22:13:49,437 INFO L229 MonitoredProcess]: Starting monitored process 26 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5c76b4a-cc84-48e5-8fd3-d4665334f85f/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-06 22:13:49,438 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5c76b4a-cc84-48e5-8fd3-d4665334f85f/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (26)] Waiting until timeout for monitored process [2021-12-06 22:13:49,438 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-12-06 22:13:49,445 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-06 22:13:49,446 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-06 22:13:49,446 INFO L204 nArgumentSynthesizer]: 2 loop disjuncts [2021-12-06 22:13:49,446 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-06 22:13:49,452 INFO L401 nArgumentSynthesizer]: We have 16 Motzkin's Theorem applications. [2021-12-06 22:13:49,452 INFO L402 nArgumentSynthesizer]: A total of 4 supporting invariants were added. [2021-12-06 22:13:49,476 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2021-12-06 22:13:49,534 INFO L443 ModelExtractionUtils]: Simplification made 17 calls to the SMT solver. [2021-12-06 22:13:49,534 INFO L444 ModelExtractionUtils]: 6 out of 21 variables were initially zero. Simplification set additionally 9 variables to zero. [2021-12-06 22:13:49,536 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-06 22:13:49,536 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5c76b4a-cc84-48e5-8fd3-d4665334f85f/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 22:13:49,537 INFO L229 MonitoredProcess]: Starting monitored process 27 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5c76b4a-cc84-48e5-8fd3-d4665334f85f/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-06 22:13:49,538 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5c76b4a-cc84-48e5-8fd3-d4665334f85f/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (27)] Waiting until timeout for monitored process [2021-12-06 22:13:49,538 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2021-12-06 22:13:49,550 INFO L438 nArgumentSynthesizer]: Removed 2 redundant supporting invariants from a total of 4. [2021-12-06 22:13:49,550 INFO L513 LassoAnalysis]: Proved termination. [2021-12-06 22:13:49,550 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(v_rep(select (select #memory_int ULTIMATE.start_main_~tmp~0#1.base) ULTIMATE.start_main_~tmp~0#1.offset)_1, v_rep(select (select #memory_int ULTIMATE.start_main_~maxId~0#1.base) ULTIMATE.start_main_~maxId~0#1.offset)_1) = -2*v_rep(select (select #memory_int ULTIMATE.start_main_~tmp~0#1.base) ULTIMATE.start_main_~tmp~0#1.offset)_1 + 3*v_rep(select (select #memory_int ULTIMATE.start_main_~maxId~0#1.base) ULTIMATE.start_main_~maxId~0#1.offset)_1 Supporting invariants [2*v_rep(select (select #memory_int ULTIMATE.start_main_~tmp~0#1.base) ULTIMATE.start_main_~tmp~0#1.offset)_1 - 1*v_rep(select (select #memory_int ULTIMATE.start_main_~id~0#1.base) ULTIMATE.start_main_~id~0#1.offset)_1 >= 0, 1*v_rep(select (select #memory_int ULTIMATE.start_main_~id~0#1.base) ULTIMATE.start_main_~id~0#1.offset)_1 >= 0] [2021-12-06 22:13:49,582 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5c76b4a-cc84-48e5-8fd3-d4665334f85f/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (26)] Ended with exit code 0 [2021-12-06 22:13:49,667 INFO L297 tatePredicateManager]: 22 out of 26 supporting invariants were superfluous and have been removed [2021-12-06 22:13:49,700 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 22:13:49,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 22:13:49,723 INFO L263 TraceCheckSpWp]: Trace formula consists of 105 conjuncts, 32 conjunts are in the unsatisfiable core [2021-12-06 22:13:49,725 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-06 22:13:49,779 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 8 [2021-12-06 22:13:49,785 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 14 [2021-12-06 22:13:49,788 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2021-12-06 22:13:49,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 22:13:49,854 INFO L263 TraceCheckSpWp]: Trace formula consists of 42 conjuncts, 18 conjunts are in the unsatisfiable core [2021-12-06 22:13:49,855 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-06 22:13:49,931 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-06 22:13:49,934 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.3 stem predicates 3 loop predicates [2021-12-06 22:13:49,934 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 7 states and 8 transitions. cyclomatic complexity: 2 Second operand has 6 states, 6 states have (on average 1.1666666666666667) internal successors, (7), 6 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) [2021-12-06 22:13:50,000 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 7 states and 8 transitions. cyclomatic complexity: 2. Second operand has 6 states, 6 states have (on average 1.1666666666666667) internal successors, (7), 6 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) Result 13 states and 16 transitions. Complement of second has 9 states. [2021-12-06 22:13:50,000 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 6 states 3 stem states 2 non-accepting loop states 1 accepting loop states [2021-12-06 22:13:50,001 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6 states, 6 states have (on average 1.1666666666666667) internal successors, (7), 6 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) [2021-12-06 22:13:50,001 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 7 transitions. [2021-12-06 22:13:50,003 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states and 7 transitions. Stem has 4 letters. Loop has 3 letters. [2021-12-06 22:13:50,003 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-12-06 22:13:50,003 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states and 7 transitions. Stem has 7 letters. Loop has 3 letters. [2021-12-06 22:13:50,003 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-12-06 22:13:50,003 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states and 7 transitions. Stem has 4 letters. Loop has 6 letters. [2021-12-06 22:13:50,004 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-12-06 22:13:50,004 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 13 states and 16 transitions. [2021-12-06 22:13:50,004 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2021-12-06 22:13:50,005 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 13 states to 13 states and 16 transitions. [2021-12-06 22:13:50,005 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 9 [2021-12-06 22:13:50,005 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 10 [2021-12-06 22:13:50,005 INFO L73 IsDeterministic]: Start isDeterministic. Operand 13 states and 16 transitions. [2021-12-06 22:13:50,005 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2021-12-06 22:13:50,005 INFO L681 BuchiCegarLoop]: Abstraction has 13 states and 16 transitions. [2021-12-06 22:13:50,005 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13 states and 16 transitions. [2021-12-06 22:13:50,006 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13 to 13. [2021-12-06 22:13:50,006 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) [2021-12-06 22:13:50,006 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 16 transitions. [2021-12-06 22:13:50,006 INFO L704 BuchiCegarLoop]: Abstraction has 13 states and 16 transitions. [2021-12-06 22:13:50,007 INFO L587 BuchiCegarLoop]: Abstraction has 13 states and 16 transitions. [2021-12-06 22:13:50,007 INFO L425 BuchiCegarLoop]: ======== Iteration 3============ [2021-12-06 22:13:50,007 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 13 states and 16 transitions. [2021-12-06 22:13:50,007 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2021-12-06 22:13:50,007 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-12-06 22:13:50,007 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-12-06 22:13:50,007 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2021-12-06 22:13:50,007 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2021-12-06 22:13:50,008 INFO L791 eck$LassoCheckResult]: Stem: 217#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier; 218#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~malloc2#1.base, main_#t~malloc2#1.offset, main_#t~malloc3#1.base, main_#t~malloc3#1.offset, main_#t~nondet4#1, main_#t~nondet5#1, main_#t~mem6#1, main_#t~mem7#1, main_#t~mem8#1, main_#t~short9#1, main_#t~malloc10#1.base, main_#t~malloc10#1.offset, main_#t~mem11#1, main_#t~mem15#1, main_#t~mem16#1, main_#t~mem17#1, main_#t~mem12#1, main_#t~mem13#1, main_#t~nondet14#1, main_~tmp~0#1.base, main_~tmp~0#1.offset, main_~id~0#1.base, main_~id~0#1.offset, main_~maxId~0#1.base, main_~maxId~0#1.offset;call main_#t~malloc2#1.base, main_#t~malloc2#1.offset := #Ultimate.allocOnStack(4);main_~id~0#1.base, main_~id~0#1.offset := main_#t~malloc2#1.base, main_#t~malloc2#1.offset;call main_#t~malloc3#1.base, main_#t~malloc3#1.offset := #Ultimate.allocOnStack(4);main_~maxId~0#1.base, main_~maxId~0#1.offset := main_#t~malloc3#1.base, main_#t~malloc3#1.offset;call write~int(main_#t~nondet4#1, main_~id~0#1.base, main_~id~0#1.offset, 4);havoc main_#t~nondet4#1;call write~int(main_#t~nondet5#1, main_~maxId~0#1.base, main_~maxId~0#1.offset, 4);havoc main_#t~nondet5#1;call main_#t~mem6#1 := read~int(main_~id~0#1.base, main_~id~0#1.offset, 4);main_#t~short9#1 := 0 <= main_#t~mem6#1; 226#L552 assume main_#t~short9#1;call main_#t~mem7#1 := read~int(main_~id~0#1.base, main_~id~0#1.offset, 4);call main_#t~mem8#1 := read~int(main_~maxId~0#1.base, main_~maxId~0#1.offset, 4);main_#t~short9#1 := main_#t~mem7#1 < main_#t~mem8#1; 215#L552-2 assume main_#t~short9#1;havoc main_#t~mem6#1;havoc main_#t~mem7#1;havoc main_#t~mem8#1;havoc main_#t~short9#1;call main_#t~malloc10#1.base, main_#t~malloc10#1.offset := #Ultimate.allocOnStack(4);main_~tmp~0#1.base, main_~tmp~0#1.offset := main_#t~malloc10#1.base, main_#t~malloc10#1.offset;call main_#t~mem11#1 := read~int(main_~id~0#1.base, main_~id~0#1.offset, 4);call write~int(1 + main_#t~mem11#1, main_~tmp~0#1.base, main_~tmp~0#1.offset, 4);havoc main_#t~mem11#1; 216#L556-2 call main_#t~mem12#1 := read~int(main_~tmp~0#1.base, main_~tmp~0#1.offset, 4);call main_#t~mem13#1 := read~int(main_~id~0#1.base, main_~id~0#1.offset, 4); 225#L555-1 assume !!(main_#t~mem12#1 != main_#t~mem13#1 && 0 != main_#t~nondet14#1);havoc main_#t~mem12#1;havoc main_#t~mem13#1;havoc main_#t~nondet14#1;call main_#t~mem15#1 := read~int(main_~tmp~0#1.base, main_~tmp~0#1.offset, 4);call main_#t~mem16#1 := read~int(main_~maxId~0#1.base, main_~maxId~0#1.offset, 4); 219#L556 assume !(main_#t~mem15#1 <= main_#t~mem16#1);havoc main_#t~mem15#1;havoc main_#t~mem16#1;call write~int(0, main_~tmp~0#1.base, main_~tmp~0#1.offset, 4); 220#L556-2 [2021-12-06 22:13:50,008 INFO L793 eck$LassoCheckResult]: Loop: 220#L556-2 call main_#t~mem12#1 := read~int(main_~tmp~0#1.base, main_~tmp~0#1.offset, 4);call main_#t~mem13#1 := read~int(main_~id~0#1.base, main_~id~0#1.offset, 4); 223#L555-1 assume !!(main_#t~mem12#1 != main_#t~mem13#1 && 0 != main_#t~nondet14#1);havoc main_#t~mem12#1;havoc main_#t~mem13#1;havoc main_#t~nondet14#1;call main_#t~mem15#1 := read~int(main_~tmp~0#1.base, main_~tmp~0#1.offset, 4);call main_#t~mem16#1 := read~int(main_~maxId~0#1.base, main_~maxId~0#1.offset, 4); 227#L556 assume main_#t~mem15#1 <= main_#t~mem16#1;havoc main_#t~mem15#1;havoc main_#t~mem16#1;call main_#t~mem17#1 := read~int(main_~tmp~0#1.base, main_~tmp~0#1.offset, 4);call write~int(1 + main_#t~mem17#1, main_~tmp~0#1.base, main_~tmp~0#1.offset, 4);havoc main_#t~mem17#1; 220#L556-2 [2021-12-06 22:13:50,008 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 22:13:50,008 INFO L85 PathProgramCache]: Analyzing trace with hash 1805029996, now seen corresponding path program 1 times [2021-12-06 22:13:50,012 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 22:13:50,012 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1973374734] [2021-12-06 22:13:50,012 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 22:13:50,012 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 22:13:50,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 22:13:50,043 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5c76b4a-cc84-48e5-8fd3-d4665334f85f/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (27)] Ended with exit code 0 [2021-12-06 22:13:50,090 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-06 22:13:50,091 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 22:13:50,091 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1973374734] [2021-12-06 22:13:50,091 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1973374734] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 22:13:50,091 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 22:13:50,091 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-12-06 22:13:50,091 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1987450276] [2021-12-06 22:13:50,091 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 22:13:50,092 INFO L796 eck$LassoCheckResult]: stem already infeasible [2021-12-06 22:13:50,092 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 22:13:50,092 INFO L85 PathProgramCache]: Analyzing trace with hash 45842, now seen corresponding path program 3 times [2021-12-06 22:13:50,092 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 22:13:50,092 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [351009138] [2021-12-06 22:13:50,093 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 22:13:50,093 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 22:13:50,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-06 22:13:50,100 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-06 22:13:50,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-06 22:13:50,107 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-06 22:13:50,188 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 22:13:50,188 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-12-06 22:13:50,189 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2021-12-06 22:13:50,189 INFO L87 Difference]: Start difference. First operand 13 states and 16 transitions. cyclomatic complexity: 5 Second operand has 6 states, 5 states have (on average 1.4) internal successors, (7), 6 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) [2021-12-06 22:13:50,224 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 22:13:50,224 INFO L93 Difference]: Finished difference Result 17 states and 19 transitions. [2021-12-06 22:13:50,224 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-12-06 22:13:50,225 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 17 states and 19 transitions. [2021-12-06 22:13:50,226 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2021-12-06 22:13:50,227 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 17 states to 15 states and 17 transitions. [2021-12-06 22:13:50,227 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 10 [2021-12-06 22:13:50,227 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 10 [2021-12-06 22:13:50,227 INFO L73 IsDeterministic]: Start isDeterministic. Operand 15 states and 17 transitions. [2021-12-06 22:13:50,227 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2021-12-06 22:13:50,227 INFO L681 BuchiCegarLoop]: Abstraction has 15 states and 17 transitions. [2021-12-06 22:13:50,228 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15 states and 17 transitions. [2021-12-06 22:13:50,229 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15 to 13. [2021-12-06 22:13:50,229 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13 states, 13 states have (on average 1.1538461538461537) internal successors, (15), 12 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) [2021-12-06 22:13:50,229 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 15 transitions. [2021-12-06 22:13:50,229 INFO L704 BuchiCegarLoop]: Abstraction has 13 states and 15 transitions. [2021-12-06 22:13:50,229 INFO L587 BuchiCegarLoop]: Abstraction has 13 states and 15 transitions. [2021-12-06 22:13:50,230 INFO L425 BuchiCegarLoop]: ======== Iteration 4============ [2021-12-06 22:13:50,230 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 13 states and 15 transitions. [2021-12-06 22:13:50,230 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2021-12-06 22:13:50,230 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-12-06 22:13:50,230 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-12-06 22:13:50,231 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [2, 2, 1, 1, 1, 1, 1, 1] [2021-12-06 22:13:50,231 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2021-12-06 22:13:50,231 INFO L791 eck$LassoCheckResult]: Stem: 260#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier; 261#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~malloc2#1.base, main_#t~malloc2#1.offset, main_#t~malloc3#1.base, main_#t~malloc3#1.offset, main_#t~nondet4#1, main_#t~nondet5#1, main_#t~mem6#1, main_#t~mem7#1, main_#t~mem8#1, main_#t~short9#1, main_#t~malloc10#1.base, main_#t~malloc10#1.offset, main_#t~mem11#1, main_#t~mem15#1, main_#t~mem16#1, main_#t~mem17#1, main_#t~mem12#1, main_#t~mem13#1, main_#t~nondet14#1, main_~tmp~0#1.base, main_~tmp~0#1.offset, main_~id~0#1.base, main_~id~0#1.offset, main_~maxId~0#1.base, main_~maxId~0#1.offset;call main_#t~malloc2#1.base, main_#t~malloc2#1.offset := #Ultimate.allocOnStack(4);main_~id~0#1.base, main_~id~0#1.offset := main_#t~malloc2#1.base, main_#t~malloc2#1.offset;call main_#t~malloc3#1.base, main_#t~malloc3#1.offset := #Ultimate.allocOnStack(4);main_~maxId~0#1.base, main_~maxId~0#1.offset := main_#t~malloc3#1.base, main_#t~malloc3#1.offset;call write~int(main_#t~nondet4#1, main_~id~0#1.base, main_~id~0#1.offset, 4);havoc main_#t~nondet4#1;call write~int(main_#t~nondet5#1, main_~maxId~0#1.base, main_~maxId~0#1.offset, 4);havoc main_#t~nondet5#1;call main_#t~mem6#1 := read~int(main_~id~0#1.base, main_~id~0#1.offset, 4);main_#t~short9#1 := 0 <= main_#t~mem6#1; 268#L552 assume main_#t~short9#1;call main_#t~mem7#1 := read~int(main_~id~0#1.base, main_~id~0#1.offset, 4);call main_#t~mem8#1 := read~int(main_~maxId~0#1.base, main_~maxId~0#1.offset, 4);main_#t~short9#1 := main_#t~mem7#1 < main_#t~mem8#1; 258#L552-2 assume main_#t~short9#1;havoc main_#t~mem6#1;havoc main_#t~mem7#1;havoc main_#t~mem8#1;havoc main_#t~short9#1;call main_#t~malloc10#1.base, main_#t~malloc10#1.offset := #Ultimate.allocOnStack(4);main_~tmp~0#1.base, main_~tmp~0#1.offset := main_#t~malloc10#1.base, main_#t~malloc10#1.offset;call main_#t~mem11#1 := read~int(main_~id~0#1.base, main_~id~0#1.offset, 4);call write~int(1 + main_#t~mem11#1, main_~tmp~0#1.base, main_~tmp~0#1.offset, 4);havoc main_#t~mem11#1; 259#L556-2 call main_#t~mem12#1 := read~int(main_~tmp~0#1.base, main_~tmp~0#1.offset, 4);call main_#t~mem13#1 := read~int(main_~id~0#1.base, main_~id~0#1.offset, 4); 266#L555-1 assume !!(main_#t~mem12#1 != main_#t~mem13#1 && 0 != main_#t~nondet14#1);havoc main_#t~mem12#1;havoc main_#t~mem13#1;havoc main_#t~nondet14#1;call main_#t~mem15#1 := read~int(main_~tmp~0#1.base, main_~tmp~0#1.offset, 4);call main_#t~mem16#1 := read~int(main_~maxId~0#1.base, main_~maxId~0#1.offset, 4); 264#L556 assume main_#t~mem15#1 <= main_#t~mem16#1;havoc main_#t~mem15#1;havoc main_#t~mem16#1;call main_#t~mem17#1 := read~int(main_~tmp~0#1.base, main_~tmp~0#1.offset, 4);call write~int(1 + main_#t~mem17#1, main_~tmp~0#1.base, main_~tmp~0#1.offset, 4);havoc main_#t~mem17#1; 265#L556-2 call main_#t~mem12#1 := read~int(main_~tmp~0#1.base, main_~tmp~0#1.offset, 4);call main_#t~mem13#1 := read~int(main_~id~0#1.base, main_~id~0#1.offset, 4); 267#L555-1 assume !!(main_#t~mem12#1 != main_#t~mem13#1 && 0 != main_#t~nondet14#1);havoc main_#t~mem12#1;havoc main_#t~mem13#1;havoc main_#t~nondet14#1;call main_#t~mem15#1 := read~int(main_~tmp~0#1.base, main_~tmp~0#1.offset, 4);call main_#t~mem16#1 := read~int(main_~maxId~0#1.base, main_~maxId~0#1.offset, 4); 262#L556 assume !(main_#t~mem15#1 <= main_#t~mem16#1);havoc main_#t~mem15#1;havoc main_#t~mem16#1;call write~int(0, main_~tmp~0#1.base, main_~tmp~0#1.offset, 4); 263#L556-2 [2021-12-06 22:13:50,231 INFO L793 eck$LassoCheckResult]: Loop: 263#L556-2 call main_#t~mem12#1 := read~int(main_~tmp~0#1.base, main_~tmp~0#1.offset, 4);call main_#t~mem13#1 := read~int(main_~id~0#1.base, main_~id~0#1.offset, 4); 269#L555-1 assume !!(main_#t~mem12#1 != main_#t~mem13#1 && 0 != main_#t~nondet14#1);havoc main_#t~mem12#1;havoc main_#t~mem13#1;havoc main_#t~nondet14#1;call main_#t~mem15#1 := read~int(main_~tmp~0#1.base, main_~tmp~0#1.offset, 4);call main_#t~mem16#1 := read~int(main_~maxId~0#1.base, main_~maxId~0#1.offset, 4); 270#L556 assume main_#t~mem15#1 <= main_#t~mem16#1;havoc main_#t~mem15#1;havoc main_#t~mem16#1;call main_#t~mem17#1 := read~int(main_~tmp~0#1.base, main_~tmp~0#1.offset, 4);call write~int(1 + main_#t~mem17#1, main_~tmp~0#1.base, main_~tmp~0#1.offset, 4);havoc main_#t~mem17#1; 263#L556-2 [2021-12-06 22:13:50,231 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 22:13:50,232 INFO L85 PathProgramCache]: Analyzing trace with hash 658021387, now seen corresponding path program 1 times [2021-12-06 22:13:50,232 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 22:13:50,232 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [596755470] [2021-12-06 22:13:50,232 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 22:13:50,232 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 22:13:50,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-06 22:13:50,262 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-06 22:13:50,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-06 22:13:50,286 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-06 22:13:50,287 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 22:13:50,287 INFO L85 PathProgramCache]: Analyzing trace with hash 45842, now seen corresponding path program 4 times [2021-12-06 22:13:50,287 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 22:13:50,287 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1342134161] [2021-12-06 22:13:50,287 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 22:13:50,287 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 22:13:50,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-06 22:13:50,293 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-06 22:13:50,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-06 22:13:50,300 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-06 22:13:50,300 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 22:13:50,300 INFO L85 PathProgramCache]: Analyzing trace with hash 884417224, now seen corresponding path program 2 times [2021-12-06 22:13:50,300 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 22:13:50,301 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [374885951] [2021-12-06 22:13:50,301 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 22:13:50,301 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 22:13:50,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-06 22:13:50,322 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-06 22:13:50,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-06 22:13:50,340 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-06 22:13:51,918 INFO L210 LassoAnalysis]: Preferences: [2021-12-06 22:13:51,918 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-12-06 22:13:51,918 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-12-06 22:13:51,918 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-12-06 22:13:51,918 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2021-12-06 22:13:51,918 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-06 22:13:51,918 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-12-06 22:13:51,919 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-12-06 22:13:51,919 INFO L133 ssoRankerPreferences]: Filename of dumped script: GulwaniJainKoskinen-2009PLDI-Fig1-alloca.i_Iteration4_Lasso [2021-12-06 22:13:51,919 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-12-06 22:13:51,919 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-12-06 22:13:51,921 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-06 22:13:52,163 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-06 22:13:52,165 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-06 22:13:52,166 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-06 22:13:52,167 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-06 22:13:52,168 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-06 22:13:52,169 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-06 22:13:52,171 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-06 22:13:52,172 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-06 22:13:52,173 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-06 22:13:52,174 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-06 22:13:52,175 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-06 22:13:52,176 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-06 22:13:52,177 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-06 22:13:52,178 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-06 22:13:52,179 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-06 22:13:52,180 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-06 22:13:52,181 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-06 22:13:52,182 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-06 22:13:52,183 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-06 22:13:52,184 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-06 22:13:52,185 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-06 22:13:52,414 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-12-06 22:13:52,414 INFO L490 LassoAnalysis]: Using template 'affine'. [2021-12-06 22:13:52,414 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-06 22:13:52,415 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5c76b4a-cc84-48e5-8fd3-d4665334f85f/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 22:13:52,415 INFO L229 MonitoredProcess]: Starting monitored process 28 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5c76b4a-cc84-48e5-8fd3-d4665334f85f/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-06 22:13:52,420 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5c76b4a-cc84-48e5-8fd3-d4665334f85f/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (28)] Waiting until timeout for monitored process [2021-12-06 22:13:52,421 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 [2021-12-06 22:13:52,427 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-06 22:13:52,428 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-06 22:13:52,428 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-06 22:13:52,428 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-06 22:13:52,429 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-12-06 22:13:52,429 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-12-06 22:13:52,433 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-06 22:13:52,451 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5c76b4a-cc84-48e5-8fd3-d4665334f85f/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (28)] Ended with exit code 0 [2021-12-06 22:13:52,451 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-06 22:13:52,451 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5c76b4a-cc84-48e5-8fd3-d4665334f85f/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 22:13:52,451 INFO L229 MonitoredProcess]: Starting monitored process 29 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5c76b4a-cc84-48e5-8fd3-d4665334f85f/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-06 22:13:52,452 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5c76b4a-cc84-48e5-8fd3-d4665334f85f/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (29)] Waiting until timeout for monitored process [2021-12-06 22:13:52,453 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-12-06 22:13:52,459 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-06 22:13:52,460 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-06 22:13:52,460 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-06 22:13:52,460 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-06 22:13:52,461 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-12-06 22:13:52,461 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-12-06 22:13:52,465 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-06 22:13:52,483 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5c76b4a-cc84-48e5-8fd3-d4665334f85f/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (29)] Ended with exit code 0 [2021-12-06 22:13:52,483 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-06 22:13:52,483 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5c76b4a-cc84-48e5-8fd3-d4665334f85f/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 22:13:52,484 INFO L229 MonitoredProcess]: Starting monitored process 30 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5c76b4a-cc84-48e5-8fd3-d4665334f85f/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-06 22:13:52,484 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5c76b4a-cc84-48e5-8fd3-d4665334f85f/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (30)] Waiting until timeout for monitored process [2021-12-06 22:13:52,485 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-12-06 22:13:52,493 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-06 22:13:52,494 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-06 22:13:52,494 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-06 22:13:52,494 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-06 22:13:52,498 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-12-06 22:13:52,498 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-12-06 22:13:52,507 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-06 22:13:52,526 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5c76b4a-cc84-48e5-8fd3-d4665334f85f/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (30)] Forceful destruction successful, exit code 0 [2021-12-06 22:13:52,526 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-06 22:13:52,526 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5c76b4a-cc84-48e5-8fd3-d4665334f85f/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 22:13:52,527 INFO L229 MonitoredProcess]: Starting monitored process 31 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5c76b4a-cc84-48e5-8fd3-d4665334f85f/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-06 22:13:52,528 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5c76b4a-cc84-48e5-8fd3-d4665334f85f/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (31)] Waiting until timeout for monitored process [2021-12-06 22:13:52,528 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-12-06 22:13:52,535 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-06 22:13:52,535 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-06 22:13:52,535 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-06 22:13:52,535 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-06 22:13:52,537 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-12-06 22:13:52,537 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-12-06 22:13:52,544 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-06 22:13:52,562 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5c76b4a-cc84-48e5-8fd3-d4665334f85f/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (31)] Ended with exit code 0 [2021-12-06 22:13:52,562 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-06 22:13:52,562 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5c76b4a-cc84-48e5-8fd3-d4665334f85f/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 22:13:52,563 INFO L229 MonitoredProcess]: Starting monitored process 32 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5c76b4a-cc84-48e5-8fd3-d4665334f85f/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-06 22:13:52,564 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5c76b4a-cc84-48e5-8fd3-d4665334f85f/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (32)] Waiting until timeout for monitored process [2021-12-06 22:13:52,564 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-12-06 22:13:52,571 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-06 22:13:52,572 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-06 22:13:52,572 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-06 22:13:52,572 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-06 22:13:52,573 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-12-06 22:13:52,573 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-12-06 22:13:52,576 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-06 22:13:52,593 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5c76b4a-cc84-48e5-8fd3-d4665334f85f/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (32)] Forceful destruction successful, exit code 0 [2021-12-06 22:13:52,594 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-06 22:13:52,594 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5c76b4a-cc84-48e5-8fd3-d4665334f85f/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 22:13:52,594 INFO L229 MonitoredProcess]: Starting monitored process 33 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5c76b4a-cc84-48e5-8fd3-d4665334f85f/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-06 22:13:52,596 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5c76b4a-cc84-48e5-8fd3-d4665334f85f/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (33)] Waiting until timeout for monitored process [2021-12-06 22:13:52,597 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-12-06 22:13:52,604 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-06 22:13:52,604 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-06 22:13:52,604 INFO L204 nArgumentSynthesizer]: 2 loop disjuncts [2021-12-06 22:13:52,604 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-06 22:13:52,611 INFO L401 nArgumentSynthesizer]: We have 16 Motzkin's Theorem applications. [2021-12-06 22:13:52,611 INFO L402 nArgumentSynthesizer]: A total of 4 supporting invariants were added. [2021-12-06 22:13:52,633 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2021-12-06 22:13:52,663 INFO L443 ModelExtractionUtils]: Simplification made 12 calls to the SMT solver. [2021-12-06 22:13:52,663 INFO L444 ModelExtractionUtils]: 5 out of 21 variables were initially zero. Simplification set additionally 10 variables to zero. [2021-12-06 22:13:52,663 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-06 22:13:52,663 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5c76b4a-cc84-48e5-8fd3-d4665334f85f/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 22:13:52,664 INFO L229 MonitoredProcess]: Starting monitored process 34 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5c76b4a-cc84-48e5-8fd3-d4665334f85f/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-06 22:13:52,665 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5c76b4a-cc84-48e5-8fd3-d4665334f85f/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (34)] Waiting until timeout for monitored process [2021-12-06 22:13:52,665 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2021-12-06 22:13:52,674 INFO L438 nArgumentSynthesizer]: Removed 3 redundant supporting invariants from a total of 4. [2021-12-06 22:13:52,675 INFO L513 LassoAnalysis]: Proved termination. [2021-12-06 22:13:52,675 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(v_rep(select (select #memory_int ULTIMATE.start_main_~maxId~0#1.base) ULTIMATE.start_main_~maxId~0#1.offset)_2, v_rep(select (select #memory_int ULTIMATE.start_main_~id~0#1.base) ULTIMATE.start_main_~id~0#1.offset)_2, v_rep(select (select #memory_int ULTIMATE.start_main_~tmp~0#1.base) ULTIMATE.start_main_~tmp~0#1.offset)_2) = 3*v_rep(select (select #memory_int ULTIMATE.start_main_~maxId~0#1.base) ULTIMATE.start_main_~maxId~0#1.offset)_2 - 1*v_rep(select (select #memory_int ULTIMATE.start_main_~id~0#1.base) ULTIMATE.start_main_~id~0#1.offset)_2 - 2*v_rep(select (select #memory_int ULTIMATE.start_main_~tmp~0#1.base) ULTIMATE.start_main_~tmp~0#1.offset)_2 Supporting invariants [1*v_rep(select (select #memory_int ULTIMATE.start_main_~maxId~0#1.base) ULTIMATE.start_main_~maxId~0#1.offset)_2 - 1*v_rep(select (select #memory_int ULTIMATE.start_main_~id~0#1.base) ULTIMATE.start_main_~id~0#1.offset)_2 >= 0] [2021-12-06 22:13:52,693 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5c76b4a-cc84-48e5-8fd3-d4665334f85f/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (33)] Ended with exit code 0 [2021-12-06 22:13:52,779 INFO L297 tatePredicateManager]: 22 out of 25 supporting invariants were superfluous and have been removed [2021-12-06 22:13:52,799 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 22:13:52,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 22:13:52,818 INFO L263 TraceCheckSpWp]: Trace formula consists of 175 conjuncts, 27 conjunts are in the unsatisfiable core [2021-12-06 22:13:52,819 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-06 22:13:52,857 INFO L354 Elim1Store]: treesize reduction 17, result has 46.9 percent of original size [2021-12-06 22:13:52,857 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 21 treesize of output 28 [2021-12-06 22:13:52,877 INFO L354 Elim1Store]: treesize reduction 16, result has 36.0 percent of original size [2021-12-06 22:13:52,877 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 16 treesize of output 18 [2021-12-06 22:13:52,953 INFO L354 Elim1Store]: treesize reduction 11, result has 8.3 percent of original size [2021-12-06 22:13:52,953 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 1 case distinctions, treesize of input 42 treesize of output 32 [2021-12-06 22:13:52,966 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5c76b4a-cc84-48e5-8fd3-d4665334f85f/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (34)] Ended with exit code 0 [2021-12-06 22:13:53,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 22:13:53,037 INFO L263 TraceCheckSpWp]: Trace formula consists of 41 conjuncts, 17 conjunts are in the unsatisfiable core [2021-12-06 22:13:53,038 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-06 22:13:53,098 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-06 22:13:53,099 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.6 stem predicates 3 loop predicates [2021-12-06 22:13:53,099 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 13 states and 15 transitions. cyclomatic complexity: 4 Second operand has 9 states, 9 states have (on average 1.4444444444444444) internal successors, (13), 9 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 22:13:53,299 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 13 states and 15 transitions. cyclomatic complexity: 4. Second operand has 9 states, 9 states have (on average 1.4444444444444444) internal successors, (13), 9 states have internal predecessors, (13), 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 21 states and 25 transitions. Complement of second has 12 states. [2021-12-06 22:13:53,299 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 9 states 6 stem states 2 non-accepting loop states 1 accepting loop states [2021-12-06 22:13:53,300 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9 states, 9 states have (on average 1.4444444444444444) internal successors, (13), 9 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 22:13:53,300 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 14 transitions. [2021-12-06 22:13:53,300 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 9 states and 14 transitions. Stem has 10 letters. Loop has 3 letters. [2021-12-06 22:13:53,301 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-12-06 22:13:53,301 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 9 states and 14 transitions. Stem has 13 letters. Loop has 3 letters. [2021-12-06 22:13:53,301 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-12-06 22:13:53,301 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 9 states and 14 transitions. Stem has 10 letters. Loop has 6 letters. [2021-12-06 22:13:53,301 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-12-06 22:13:53,301 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 21 states and 25 transitions. [2021-12-06 22:13:53,302 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2021-12-06 22:13:53,303 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 21 states to 21 states and 25 transitions. [2021-12-06 22:13:53,303 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 12 [2021-12-06 22:13:53,303 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 13 [2021-12-06 22:13:53,303 INFO L73 IsDeterministic]: Start isDeterministic. Operand 21 states and 25 transitions. [2021-12-06 22:13:53,303 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2021-12-06 22:13:53,303 INFO L681 BuchiCegarLoop]: Abstraction has 21 states and 25 transitions. [2021-12-06 22:13:53,303 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21 states and 25 transitions. [2021-12-06 22:13:53,305 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21 to 19. [2021-12-06 22:13:53,305 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19 states, 19 states have (on average 1.2105263157894737) internal successors, (23), 18 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 22:13:53,305 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 23 transitions. [2021-12-06 22:13:53,306 INFO L704 BuchiCegarLoop]: Abstraction has 19 states and 23 transitions. [2021-12-06 22:13:53,306 INFO L587 BuchiCegarLoop]: Abstraction has 19 states and 23 transitions. [2021-12-06 22:13:53,306 INFO L425 BuchiCegarLoop]: ======== Iteration 5============ [2021-12-06 22:13:53,306 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 19 states and 23 transitions. [2021-12-06 22:13:53,306 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2021-12-06 22:13:53,306 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-12-06 22:13:53,307 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-12-06 22:13:53,307 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [3, 3, 2, 1, 1, 1, 1, 1] [2021-12-06 22:13:53,307 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2021-12-06 22:13:53,307 INFO L791 eck$LassoCheckResult]: Stem: 482#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier; 483#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~malloc2#1.base, main_#t~malloc2#1.offset, main_#t~malloc3#1.base, main_#t~malloc3#1.offset, main_#t~nondet4#1, main_#t~nondet5#1, main_#t~mem6#1, main_#t~mem7#1, main_#t~mem8#1, main_#t~short9#1, main_#t~malloc10#1.base, main_#t~malloc10#1.offset, main_#t~mem11#1, main_#t~mem15#1, main_#t~mem16#1, main_#t~mem17#1, main_#t~mem12#1, main_#t~mem13#1, main_#t~nondet14#1, main_~tmp~0#1.base, main_~tmp~0#1.offset, main_~id~0#1.base, main_~id~0#1.offset, main_~maxId~0#1.base, main_~maxId~0#1.offset;call main_#t~malloc2#1.base, main_#t~malloc2#1.offset := #Ultimate.allocOnStack(4);main_~id~0#1.base, main_~id~0#1.offset := main_#t~malloc2#1.base, main_#t~malloc2#1.offset;call main_#t~malloc3#1.base, main_#t~malloc3#1.offset := #Ultimate.allocOnStack(4);main_~maxId~0#1.base, main_~maxId~0#1.offset := main_#t~malloc3#1.base, main_#t~malloc3#1.offset;call write~int(main_#t~nondet4#1, main_~id~0#1.base, main_~id~0#1.offset, 4);havoc main_#t~nondet4#1;call write~int(main_#t~nondet5#1, main_~maxId~0#1.base, main_~maxId~0#1.offset, 4);havoc main_#t~nondet5#1;call main_#t~mem6#1 := read~int(main_~id~0#1.base, main_~id~0#1.offset, 4);main_#t~short9#1 := 0 <= main_#t~mem6#1; 490#L552 assume main_#t~short9#1;call main_#t~mem7#1 := read~int(main_~id~0#1.base, main_~id~0#1.offset, 4);call main_#t~mem8#1 := read~int(main_~maxId~0#1.base, main_~maxId~0#1.offset, 4);main_#t~short9#1 := main_#t~mem7#1 < main_#t~mem8#1; 480#L552-2 assume main_#t~short9#1;havoc main_#t~mem6#1;havoc main_#t~mem7#1;havoc main_#t~mem8#1;havoc main_#t~short9#1;call main_#t~malloc10#1.base, main_#t~malloc10#1.offset := #Ultimate.allocOnStack(4);main_~tmp~0#1.base, main_~tmp~0#1.offset := main_#t~malloc10#1.base, main_#t~malloc10#1.offset;call main_#t~mem11#1 := read~int(main_~id~0#1.base, main_~id~0#1.offset, 4);call write~int(1 + main_#t~mem11#1, main_~tmp~0#1.base, main_~tmp~0#1.offset, 4);havoc main_#t~mem11#1; 481#L556-2 call main_#t~mem12#1 := read~int(main_~tmp~0#1.base, main_~tmp~0#1.offset, 4);call main_#t~mem13#1 := read~int(main_~id~0#1.base, main_~id~0#1.offset, 4); 488#L555-1 assume !!(main_#t~mem12#1 != main_#t~mem13#1 && 0 != main_#t~nondet14#1);havoc main_#t~mem12#1;havoc main_#t~mem13#1;havoc main_#t~nondet14#1;call main_#t~mem15#1 := read~int(main_~tmp~0#1.base, main_~tmp~0#1.offset, 4);call main_#t~mem16#1 := read~int(main_~maxId~0#1.base, main_~maxId~0#1.offset, 4); 486#L556 assume main_#t~mem15#1 <= main_#t~mem16#1;havoc main_#t~mem15#1;havoc main_#t~mem16#1;call main_#t~mem17#1 := read~int(main_~tmp~0#1.base, main_~tmp~0#1.offset, 4);call write~int(1 + main_#t~mem17#1, main_~tmp~0#1.base, main_~tmp~0#1.offset, 4);havoc main_#t~mem17#1; 487#L556-2 call main_#t~mem12#1 := read~int(main_~tmp~0#1.base, main_~tmp~0#1.offset, 4);call main_#t~mem13#1 := read~int(main_~id~0#1.base, main_~id~0#1.offset, 4); 489#L555-1 assume !!(main_#t~mem12#1 != main_#t~mem13#1 && 0 != main_#t~nondet14#1);havoc main_#t~mem12#1;havoc main_#t~mem13#1;havoc main_#t~nondet14#1;call main_#t~mem15#1 := read~int(main_~tmp~0#1.base, main_~tmp~0#1.offset, 4);call main_#t~mem16#1 := read~int(main_~maxId~0#1.base, main_~maxId~0#1.offset, 4); 484#L556 assume !(main_#t~mem15#1 <= main_#t~mem16#1);havoc main_#t~mem15#1;havoc main_#t~mem16#1;call write~int(0, main_~tmp~0#1.base, main_~tmp~0#1.offset, 4); 485#L556-2 call main_#t~mem12#1 := read~int(main_~tmp~0#1.base, main_~tmp~0#1.offset, 4);call main_#t~mem13#1 := read~int(main_~id~0#1.base, main_~id~0#1.offset, 4); 496#L555-1 assume !!(main_#t~mem12#1 != main_#t~mem13#1 && 0 != main_#t~nondet14#1);havoc main_#t~mem12#1;havoc main_#t~mem13#1;havoc main_#t~nondet14#1;call main_#t~mem15#1 := read~int(main_~tmp~0#1.base, main_~tmp~0#1.offset, 4);call main_#t~mem16#1 := read~int(main_~maxId~0#1.base, main_~maxId~0#1.offset, 4); 494#L556 assume !(main_#t~mem15#1 <= main_#t~mem16#1);havoc main_#t~mem15#1;havoc main_#t~mem16#1;call write~int(0, main_~tmp~0#1.base, main_~tmp~0#1.offset, 4); 492#L556-2 [2021-12-06 22:13:53,307 INFO L793 eck$LassoCheckResult]: Loop: 492#L556-2 call main_#t~mem12#1 := read~int(main_~tmp~0#1.base, main_~tmp~0#1.offset, 4);call main_#t~mem13#1 := read~int(main_~id~0#1.base, main_~id~0#1.offset, 4); 493#L555-1 assume !!(main_#t~mem12#1 != main_#t~mem13#1 && 0 != main_#t~nondet14#1);havoc main_#t~mem12#1;havoc main_#t~mem13#1;havoc main_#t~nondet14#1;call main_#t~mem15#1 := read~int(main_~tmp~0#1.base, main_~tmp~0#1.offset, 4);call main_#t~mem16#1 := read~int(main_~maxId~0#1.base, main_~maxId~0#1.offset, 4); 491#L556 assume main_#t~mem15#1 <= main_#t~mem16#1;havoc main_#t~mem15#1;havoc main_#t~mem16#1;call main_#t~mem17#1 := read~int(main_~tmp~0#1.base, main_~tmp~0#1.offset, 4);call write~int(1 + main_#t~mem17#1, main_~tmp~0#1.base, main_~tmp~0#1.offset, 4);havoc main_#t~mem17#1; 492#L556-2 [2021-12-06 22:13:53,307 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 22:13:53,308 INFO L85 PathProgramCache]: Analyzing trace with hash 884417226, now seen corresponding path program 3 times [2021-12-06 22:13:53,308 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 22:13:53,308 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1537950031] [2021-12-06 22:13:53,308 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 22:13:53,308 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 22:13:53,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 22:13:53,387 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 4 proven. 2 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2021-12-06 22:13:53,387 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 22:13:53,387 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1537950031] [2021-12-06 22:13:53,388 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1537950031] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-06 22:13:53,388 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1535157890] [2021-12-06 22:13:53,388 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2021-12-06 22:13:53,388 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-06 22:13:53,388 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5c76b4a-cc84-48e5-8fd3-d4665334f85f/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 22:13:53,389 INFO L229 MonitoredProcess]: Starting monitored process 35 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5c76b4a-cc84-48e5-8fd3-d4665334f85f/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-06 22:13:53,389 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5c76b4a-cc84-48e5-8fd3-d4665334f85f/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (35)] Waiting until timeout for monitored process [2021-12-06 22:13:53,444 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2021-12-06 22:13:53,444 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-12-06 22:13:53,445 INFO L263 TraceCheckSpWp]: Trace formula consists of 210 conjuncts, 25 conjunts are in the unsatisfiable core [2021-12-06 22:13:53,447 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-06 22:13:53,472 INFO L354 Elim1Store]: treesize reduction 11, result has 45.0 percent of original size [2021-12-06 22:13:53,472 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 1 case distinctions, treesize of input 9 treesize of output 15 [2021-12-06 22:13:53,504 INFO L354 Elim1Store]: treesize reduction 17, result has 46.9 percent of original size [2021-12-06 22:13:53,505 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 28 treesize of output 31 [2021-12-06 22:13:53,517 INFO L354 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2021-12-06 22:13:53,517 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 11 treesize of output 11 [2021-12-06 22:13:53,551 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 23 [2021-12-06 22:13:53,553 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11 [2021-12-06 22:13:53,570 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 18 [2021-12-06 22:13:53,591 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 13 [2021-12-06 22:13:53,601 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 2 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-06 22:13:53,601 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-12-06 22:13:53,655 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-12-06 22:13:53,655 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 13 treesize of output 17 [2021-12-06 22:13:53,782 WARN L838 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_212 Int) (v_arrayElimArr_2 (Array Int Int)) (|v_ULTIMATE.start_main_#t~malloc10#1.base_83| Int) (|v_ULTIMATE.start_main_~tmp~0#1.offset_65| Int) (|ULTIMATE.start_main_~maxId~0#1.offset| Int)) (let ((.cse0 (select v_arrayElimArr_2 |v_ULTIMATE.start_main_~tmp~0#1.offset_65|))) (or (< v_ArrVal_212 (+ (select (select |c_#memory_int| |c_ULTIMATE.start_main_~id~0#1.base|) |c_ULTIMATE.start_main_~id~0#1.offset|) 1)) (not (= (select |c_#valid| |v_ULTIMATE.start_main_#t~malloc10#1.base_83|) 0)) (< 0 .cse0) (< (select (select (store |c_#memory_int| |v_ULTIMATE.start_main_#t~malloc10#1.base_83| (store (select |c_#memory_int| |v_ULTIMATE.start_main_#t~malloc10#1.base_83|) |v_ULTIMATE.start_main_~tmp~0#1.offset_65| v_ArrVal_212)) |c_ULTIMATE.start_main_~maxId~0#1.base|) |ULTIMATE.start_main_~maxId~0#1.offset|) v_ArrVal_212) (<= .cse0 (select (select (store |c_#memory_int| |v_ULTIMATE.start_main_#t~malloc10#1.base_83| v_arrayElimArr_2) |c_ULTIMATE.start_main_~maxId~0#1.base|) |ULTIMATE.start_main_~maxId~0#1.offset|))))) is different from false [2021-12-06 22:13:53,871 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-06 22:13:53,871 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1535157890] provided 0 perfect and 2 imperfect interpolant sequences [2021-12-06 22:13:53,872 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-12-06 22:13:53,872 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 8, 8] total 18 [2021-12-06 22:13:53,872 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [718814547] [2021-12-06 22:13:53,872 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-12-06 22:13:53,872 INFO L796 eck$LassoCheckResult]: stem already infeasible [2021-12-06 22:13:53,872 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 22:13:53,872 INFO L85 PathProgramCache]: Analyzing trace with hash 45842, now seen corresponding path program 5 times [2021-12-06 22:13:53,872 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 22:13:53,873 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [106323594] [2021-12-06 22:13:53,873 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 22:13:53,873 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 22:13:53,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-06 22:13:53,878 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-06 22:13:53,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-06 22:13:53,884 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-06 22:13:53,959 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 22:13:53,960 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2021-12-06 22:13:53,961 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=252, Unknown=1, NotChecked=32, Total=342 [2021-12-06 22:13:53,961 INFO L87 Difference]: Start difference. First operand 19 states and 23 transitions. cyclomatic complexity: 7 Second operand has 19 states, 18 states have (on average 1.7777777777777777) internal successors, (32), 19 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 22:13:54,087 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 22:13:54,087 INFO L93 Difference]: Finished difference Result 28 states and 31 transitions. [2021-12-06 22:13:54,088 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-12-06 22:13:54,088 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 28 states and 31 transitions. [2021-12-06 22:13:54,089 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 6 [2021-12-06 22:13:54,090 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 28 states to 26 states and 29 transitions. [2021-12-06 22:13:54,090 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 16 [2021-12-06 22:13:54,090 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 16 [2021-12-06 22:13:54,090 INFO L73 IsDeterministic]: Start isDeterministic. Operand 26 states and 29 transitions. [2021-12-06 22:13:54,090 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2021-12-06 22:13:54,090 INFO L681 BuchiCegarLoop]: Abstraction has 26 states and 29 transitions. [2021-12-06 22:13:54,091 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26 states and 29 transitions. [2021-12-06 22:13:54,092 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26 to 22. [2021-12-06 22:13:54,092 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 22 states, 22 states have (on average 1.1363636363636365) internal successors, (25), 21 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 22:13:54,093 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 22 states and 25 transitions. [2021-12-06 22:13:54,093 INFO L704 BuchiCegarLoop]: Abstraction has 22 states and 25 transitions. [2021-12-06 22:13:54,093 INFO L587 BuchiCegarLoop]: Abstraction has 22 states and 25 transitions. [2021-12-06 22:13:54,093 INFO L425 BuchiCegarLoop]: ======== Iteration 6============ [2021-12-06 22:13:54,093 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 22 states and 25 transitions. [2021-12-06 22:13:54,094 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 6 [2021-12-06 22:13:54,094 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-12-06 22:13:54,094 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-12-06 22:13:54,094 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [4, 4, 2, 2, 1, 1, 1, 1] [2021-12-06 22:13:54,094 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [2, 2, 1, 1] [2021-12-06 22:13:54,095 INFO L791 eck$LassoCheckResult]: Stem: 638#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier; 639#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~malloc2#1.base, main_#t~malloc2#1.offset, main_#t~malloc3#1.base, main_#t~malloc3#1.offset, main_#t~nondet4#1, main_#t~nondet5#1, main_#t~mem6#1, main_#t~mem7#1, main_#t~mem8#1, main_#t~short9#1, main_#t~malloc10#1.base, main_#t~malloc10#1.offset, main_#t~mem11#1, main_#t~mem15#1, main_#t~mem16#1, main_#t~mem17#1, main_#t~mem12#1, main_#t~mem13#1, main_#t~nondet14#1, main_~tmp~0#1.base, main_~tmp~0#1.offset, main_~id~0#1.base, main_~id~0#1.offset, main_~maxId~0#1.base, main_~maxId~0#1.offset;call main_#t~malloc2#1.base, main_#t~malloc2#1.offset := #Ultimate.allocOnStack(4);main_~id~0#1.base, main_~id~0#1.offset := main_#t~malloc2#1.base, main_#t~malloc2#1.offset;call main_#t~malloc3#1.base, main_#t~malloc3#1.offset := #Ultimate.allocOnStack(4);main_~maxId~0#1.base, main_~maxId~0#1.offset := main_#t~malloc3#1.base, main_#t~malloc3#1.offset;call write~int(main_#t~nondet4#1, main_~id~0#1.base, main_~id~0#1.offset, 4);havoc main_#t~nondet4#1;call write~int(main_#t~nondet5#1, main_~maxId~0#1.base, main_~maxId~0#1.offset, 4);havoc main_#t~nondet5#1;call main_#t~mem6#1 := read~int(main_~id~0#1.base, main_~id~0#1.offset, 4);main_#t~short9#1 := 0 <= main_#t~mem6#1; 646#L552 assume main_#t~short9#1;call main_#t~mem7#1 := read~int(main_~id~0#1.base, main_~id~0#1.offset, 4);call main_#t~mem8#1 := read~int(main_~maxId~0#1.base, main_~maxId~0#1.offset, 4);main_#t~short9#1 := main_#t~mem7#1 < main_#t~mem8#1; 636#L552-2 assume main_#t~short9#1;havoc main_#t~mem6#1;havoc main_#t~mem7#1;havoc main_#t~mem8#1;havoc main_#t~short9#1;call main_#t~malloc10#1.base, main_#t~malloc10#1.offset := #Ultimate.allocOnStack(4);main_~tmp~0#1.base, main_~tmp~0#1.offset := main_#t~malloc10#1.base, main_#t~malloc10#1.offset;call main_#t~mem11#1 := read~int(main_~id~0#1.base, main_~id~0#1.offset, 4);call write~int(1 + main_#t~mem11#1, main_~tmp~0#1.base, main_~tmp~0#1.offset, 4);havoc main_#t~mem11#1; 637#L556-2 call main_#t~mem12#1 := read~int(main_~tmp~0#1.base, main_~tmp~0#1.offset, 4);call main_#t~mem13#1 := read~int(main_~id~0#1.base, main_~id~0#1.offset, 4); 644#L555-1 assume !!(main_#t~mem12#1 != main_#t~mem13#1 && 0 != main_#t~nondet14#1);havoc main_#t~mem12#1;havoc main_#t~mem13#1;havoc main_#t~nondet14#1;call main_#t~mem15#1 := read~int(main_~tmp~0#1.base, main_~tmp~0#1.offset, 4);call main_#t~mem16#1 := read~int(main_~maxId~0#1.base, main_~maxId~0#1.offset, 4); 642#L556 assume main_#t~mem15#1 <= main_#t~mem16#1;havoc main_#t~mem15#1;havoc main_#t~mem16#1;call main_#t~mem17#1 := read~int(main_~tmp~0#1.base, main_~tmp~0#1.offset, 4);call write~int(1 + main_#t~mem17#1, main_~tmp~0#1.base, main_~tmp~0#1.offset, 4);havoc main_#t~mem17#1; 643#L556-2 call main_#t~mem12#1 := read~int(main_~tmp~0#1.base, main_~tmp~0#1.offset, 4);call main_#t~mem13#1 := read~int(main_~id~0#1.base, main_~id~0#1.offset, 4); 645#L555-1 assume !!(main_#t~mem12#1 != main_#t~mem13#1 && 0 != main_#t~nondet14#1);havoc main_#t~mem12#1;havoc main_#t~mem13#1;havoc main_#t~nondet14#1;call main_#t~mem15#1 := read~int(main_~tmp~0#1.base, main_~tmp~0#1.offset, 4);call main_#t~mem16#1 := read~int(main_~maxId~0#1.base, main_~maxId~0#1.offset, 4); 640#L556 assume !(main_#t~mem15#1 <= main_#t~mem16#1);havoc main_#t~mem15#1;havoc main_#t~mem16#1;call write~int(0, main_~tmp~0#1.base, main_~tmp~0#1.offset, 4); 641#L556-2 call main_#t~mem12#1 := read~int(main_~tmp~0#1.base, main_~tmp~0#1.offset, 4);call main_#t~mem13#1 := read~int(main_~id~0#1.base, main_~id~0#1.offset, 4); 656#L555-1 assume !!(main_#t~mem12#1 != main_#t~mem13#1 && 0 != main_#t~nondet14#1);havoc main_#t~mem12#1;havoc main_#t~mem13#1;havoc main_#t~nondet14#1;call main_#t~mem15#1 := read~int(main_~tmp~0#1.base, main_~tmp~0#1.offset, 4);call main_#t~mem16#1 := read~int(main_~maxId~0#1.base, main_~maxId~0#1.offset, 4); 657#L556 assume main_#t~mem15#1 <= main_#t~mem16#1;havoc main_#t~mem15#1;havoc main_#t~mem16#1;call main_#t~mem17#1 := read~int(main_~tmp~0#1.base, main_~tmp~0#1.offset, 4);call write~int(1 + main_#t~mem17#1, main_~tmp~0#1.base, main_~tmp~0#1.offset, 4);havoc main_#t~mem17#1; 655#L556-2 call main_#t~mem12#1 := read~int(main_~tmp~0#1.base, main_~tmp~0#1.offset, 4);call main_#t~mem13#1 := read~int(main_~id~0#1.base, main_~id~0#1.offset, 4); 654#L555-1 assume !!(main_#t~mem12#1 != main_#t~mem13#1 && 0 != main_#t~nondet14#1);havoc main_#t~mem12#1;havoc main_#t~mem13#1;havoc main_#t~nondet14#1;call main_#t~mem15#1 := read~int(main_~tmp~0#1.base, main_~tmp~0#1.offset, 4);call main_#t~mem16#1 := read~int(main_~maxId~0#1.base, main_~maxId~0#1.offset, 4); 653#L556 assume !(main_#t~mem15#1 <= main_#t~mem16#1);havoc main_#t~mem15#1;havoc main_#t~mem16#1;call write~int(0, main_~tmp~0#1.base, main_~tmp~0#1.offset, 4); 650#L556-2 [2021-12-06 22:13:54,095 INFO L793 eck$LassoCheckResult]: Loop: 650#L556-2 call main_#t~mem12#1 := read~int(main_~tmp~0#1.base, main_~tmp~0#1.offset, 4);call main_#t~mem13#1 := read~int(main_~id~0#1.base, main_~id~0#1.offset, 4); 652#L555-1 assume !!(main_#t~mem12#1 != main_#t~mem13#1 && 0 != main_#t~nondet14#1);havoc main_#t~mem12#1;havoc main_#t~mem13#1;havoc main_#t~nondet14#1;call main_#t~mem15#1 := read~int(main_~tmp~0#1.base, main_~tmp~0#1.offset, 4);call main_#t~mem16#1 := read~int(main_~maxId~0#1.base, main_~maxId~0#1.offset, 4); 647#L556 assume main_#t~mem15#1 <= main_#t~mem16#1;havoc main_#t~mem15#1;havoc main_#t~mem16#1;call main_#t~mem17#1 := read~int(main_~tmp~0#1.base, main_~tmp~0#1.offset, 4);call write~int(1 + main_#t~mem17#1, main_~tmp~0#1.base, main_~tmp~0#1.offset, 4);havoc main_#t~mem17#1; 648#L556-2 call main_#t~mem12#1 := read~int(main_~tmp~0#1.base, main_~tmp~0#1.offset, 4);call main_#t~mem13#1 := read~int(main_~id~0#1.base, main_~id~0#1.offset, 4); 651#L555-1 assume !!(main_#t~mem12#1 != main_#t~mem13#1 && 0 != main_#t~nondet14#1);havoc main_#t~mem12#1;havoc main_#t~mem13#1;havoc main_#t~nondet14#1;call main_#t~mem15#1 := read~int(main_~tmp~0#1.base, main_~tmp~0#1.offset, 4);call main_#t~mem16#1 := read~int(main_~maxId~0#1.base, main_~maxId~0#1.offset, 4); 649#L556 assume !(main_#t~mem15#1 <= main_#t~mem16#1);havoc main_#t~mem15#1;havoc main_#t~mem16#1;call write~int(0, main_~tmp~0#1.base, main_~tmp~0#1.offset, 4); 650#L556-2 [2021-12-06 22:13:54,095 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 22:13:54,095 INFO L85 PathProgramCache]: Analyzing trace with hash -1950824723, now seen corresponding path program 4 times [2021-12-06 22:13:54,095 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 22:13:54,095 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [759419356] [2021-12-06 22:13:54,095 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 22:13:54,096 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 22:13:54,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 22:13:54,192 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 6 proven. 9 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2021-12-06 22:13:54,192 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 22:13:54,192 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [759419356] [2021-12-06 22:13:54,192 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [759419356] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-06 22:13:54,192 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [729482375] [2021-12-06 22:13:54,192 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2021-12-06 22:13:54,192 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-06 22:13:54,193 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5c76b4a-cc84-48e5-8fd3-d4665334f85f/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 22:13:54,193 INFO L229 MonitoredProcess]: Starting monitored process 36 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5c76b4a-cc84-48e5-8fd3-d4665334f85f/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-06 22:13:54,194 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5c76b4a-cc84-48e5-8fd3-d4665334f85f/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (36)] Waiting until timeout for monitored process [2021-12-06 22:13:54,239 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-12-06 22:13:54,239 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-12-06 22:13:54,240 INFO L263 TraceCheckSpWp]: Trace formula consists of 245 conjuncts, 40 conjunts are in the unsatisfiable core [2021-12-06 22:13:54,243 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-06 22:13:54,257 INFO L354 Elim1Store]: treesize reduction 11, result has 45.0 percent of original size [2021-12-06 22:13:54,258 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 1 case distinctions, treesize of input 9 treesize of output 15 [2021-12-06 22:13:54,302 INFO L354 Elim1Store]: treesize reduction 16, result has 36.0 percent of original size [2021-12-06 22:13:54,303 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 16 treesize of output 18 [2021-12-06 22:13:54,307 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 23 [2021-12-06 22:13:54,362 INFO L354 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2021-12-06 22:13:54,362 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 1 case distinctions, treesize of input 38 treesize of output 37 [2021-12-06 22:13:54,364 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 17 [2021-12-06 22:13:54,401 INFO L354 Elim1Store]: treesize reduction 11, result has 8.3 percent of original size [2021-12-06 22:13:54,402 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 32 treesize of output 30 [2021-12-06 22:13:54,494 INFO L354 Elim1Store]: treesize reduction 11, result has 8.3 percent of original size [2021-12-06 22:13:54,494 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 1 case distinctions, treesize of input 60 treesize of output 42 [2021-12-06 22:13:54,586 INFO L354 Elim1Store]: treesize reduction 3, result has 75.0 percent of original size [2021-12-06 22:13:54,586 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 1 case distinctions, treesize of input 67 treesize of output 36 [2021-12-06 22:13:54,608 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 4 proven. 14 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-06 22:13:54,608 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-12-06 22:13:54,918 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-12-06 22:13:54,918 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 2 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 40 treesize of output 43 [2021-12-06 22:13:55,833 WARN L838 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_267 Int) (|v_ULTIMATE.start_main_#t~malloc10#1.base_85| Int) (v_arrayElimArr_4 (Array Int Int)) (v_arrayElimArr_3 (Array Int Int)) (|ULTIMATE.start_main_~maxId~0#1.offset| Int) (|v_ULTIMATE.start_main_~tmp~0#1.offset_68| Int)) (let ((.cse2 (select v_arrayElimArr_4 |v_ULTIMATE.start_main_~tmp~0#1.offset_68|)) (.cse1 (select v_arrayElimArr_3 |v_ULTIMATE.start_main_~tmp~0#1.offset_68|)) (.cse0 (store |c_#memory_int| |v_ULTIMATE.start_main_#t~malloc10#1.base_85| v_arrayElimArr_3))) (or (= (select (select .cse0 |c_ULTIMATE.start_main_~id~0#1.base|) |c_ULTIMATE.start_main_~id~0#1.offset|) .cse1) (< 0 .cse2) (= .cse2 (select (select (store |c_#memory_int| |v_ULTIMATE.start_main_#t~malloc10#1.base_85| v_arrayElimArr_4) |c_ULTIMATE.start_main_~id~0#1.base|) |c_ULTIMATE.start_main_~id~0#1.offset|)) (< (select (select (store |c_#memory_int| |v_ULTIMATE.start_main_#t~malloc10#1.base_85| (store (select |c_#memory_int| |v_ULTIMATE.start_main_#t~malloc10#1.base_85|) |v_ULTIMATE.start_main_~tmp~0#1.offset_68| v_ArrVal_267)) |c_ULTIMATE.start_main_~maxId~0#1.base|) |ULTIMATE.start_main_~maxId~0#1.offset|) v_ArrVal_267) (< (+ .cse2 1) .cse1) (< v_ArrVal_267 (+ (select (select |c_#memory_int| |c_ULTIMATE.start_main_~id~0#1.base|) |c_ULTIMATE.start_main_~id~0#1.offset|) 1)) (not (= (select |c_#valid| |v_ULTIMATE.start_main_#t~malloc10#1.base_85|) 0)) (<= .cse1 (select (select .cse0 |c_ULTIMATE.start_main_~maxId~0#1.base|) |ULTIMATE.start_main_~maxId~0#1.offset|))))) is different from false [2021-12-06 22:13:56,033 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-06 22:13:56,033 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [729482375] provided 0 perfect and 2 imperfect interpolant sequences [2021-12-06 22:13:56,033 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-12-06 22:13:56,033 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 12, 12] total 28 [2021-12-06 22:13:56,033 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1437747971] [2021-12-06 22:13:56,033 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-12-06 22:13:56,034 INFO L796 eck$LassoCheckResult]: stem already infeasible [2021-12-06 22:13:56,034 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 22:13:56,034 INFO L85 PathProgramCache]: Analyzing trace with hash 1365695075, now seen corresponding path program 1 times [2021-12-06 22:13:56,034 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 22:13:56,034 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [727403839] [2021-12-06 22:13:56,035 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 22:13:56,035 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 22:13:56,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-06 22:13:56,043 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-06 22:13:56,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-06 22:13:56,050 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-06 22:13:56,173 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 22:13:56,173 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 29 interpolants. [2021-12-06 22:13:56,174 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=141, Invalid=618, Unknown=1, NotChecked=52, Total=812 [2021-12-06 22:13:56,174 INFO L87 Difference]: Start difference. First operand 22 states and 25 transitions. cyclomatic complexity: 6 Second operand has 29 states, 28 states have (on average 1.5357142857142858) internal successors, (43), 29 states have internal predecessors, (43), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 22:13:56,591 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 22:13:56,591 INFO L93 Difference]: Finished difference Result 42 states and 45 transitions. [2021-12-06 22:13:56,591 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-12-06 22:13:56,592 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 42 states and 45 transitions. [2021-12-06 22:13:56,593 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 12 [2021-12-06 22:13:56,593 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 42 states to 38 states and 41 transitions. [2021-12-06 22:13:56,593 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 22 [2021-12-06 22:13:56,593 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 22 [2021-12-06 22:13:56,593 INFO L73 IsDeterministic]: Start isDeterministic. Operand 38 states and 41 transitions. [2021-12-06 22:13:56,594 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2021-12-06 22:13:56,594 INFO L681 BuchiCegarLoop]: Abstraction has 38 states and 41 transitions. [2021-12-06 22:13:56,594 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 38 states and 41 transitions. [2021-12-06 22:13:56,595 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 38 to 34. [2021-12-06 22:13:56,596 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 34 states, 34 states have (on average 1.088235294117647) internal successors, (37), 33 states have internal predecessors, (37), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 22:13:56,596 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34 states to 34 states and 37 transitions. [2021-12-06 22:13:56,596 INFO L704 BuchiCegarLoop]: Abstraction has 34 states and 37 transitions. [2021-12-06 22:13:56,596 INFO L587 BuchiCegarLoop]: Abstraction has 34 states and 37 transitions. [2021-12-06 22:13:56,596 INFO L425 BuchiCegarLoop]: ======== Iteration 7============ [2021-12-06 22:13:56,596 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 34 states and 37 transitions. [2021-12-06 22:13:56,597 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 12 [2021-12-06 22:13:56,597 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-12-06 22:13:56,597 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-12-06 22:13:56,597 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [6, 6, 4, 2, 1, 1, 1, 1] [2021-12-06 22:13:56,598 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [4, 4, 3, 1] [2021-12-06 22:13:56,598 INFO L791 eck$LassoCheckResult]: Stem: 851#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier; 852#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~malloc2#1.base, main_#t~malloc2#1.offset, main_#t~malloc3#1.base, main_#t~malloc3#1.offset, main_#t~nondet4#1, main_#t~nondet5#1, main_#t~mem6#1, main_#t~mem7#1, main_#t~mem8#1, main_#t~short9#1, main_#t~malloc10#1.base, main_#t~malloc10#1.offset, main_#t~mem11#1, main_#t~mem15#1, main_#t~mem16#1, main_#t~mem17#1, main_#t~mem12#1, main_#t~mem13#1, main_#t~nondet14#1, main_~tmp~0#1.base, main_~tmp~0#1.offset, main_~id~0#1.base, main_~id~0#1.offset, main_~maxId~0#1.base, main_~maxId~0#1.offset;call main_#t~malloc2#1.base, main_#t~malloc2#1.offset := #Ultimate.allocOnStack(4);main_~id~0#1.base, main_~id~0#1.offset := main_#t~malloc2#1.base, main_#t~malloc2#1.offset;call main_#t~malloc3#1.base, main_#t~malloc3#1.offset := #Ultimate.allocOnStack(4);main_~maxId~0#1.base, main_~maxId~0#1.offset := main_#t~malloc3#1.base, main_#t~malloc3#1.offset;call write~int(main_#t~nondet4#1, main_~id~0#1.base, main_~id~0#1.offset, 4);havoc main_#t~nondet4#1;call write~int(main_#t~nondet5#1, main_~maxId~0#1.base, main_~maxId~0#1.offset, 4);havoc main_#t~nondet5#1;call main_#t~mem6#1 := read~int(main_~id~0#1.base, main_~id~0#1.offset, 4);main_#t~short9#1 := 0 <= main_#t~mem6#1; 860#L552 assume main_#t~short9#1;call main_#t~mem7#1 := read~int(main_~id~0#1.base, main_~id~0#1.offset, 4);call main_#t~mem8#1 := read~int(main_~maxId~0#1.base, main_~maxId~0#1.offset, 4);main_#t~short9#1 := main_#t~mem7#1 < main_#t~mem8#1; 849#L552-2 assume main_#t~short9#1;havoc main_#t~mem6#1;havoc main_#t~mem7#1;havoc main_#t~mem8#1;havoc main_#t~short9#1;call main_#t~malloc10#1.base, main_#t~malloc10#1.offset := #Ultimate.allocOnStack(4);main_~tmp~0#1.base, main_~tmp~0#1.offset := main_#t~malloc10#1.base, main_#t~malloc10#1.offset;call main_#t~mem11#1 := read~int(main_~id~0#1.base, main_~id~0#1.offset, 4);call write~int(1 + main_#t~mem11#1, main_~tmp~0#1.base, main_~tmp~0#1.offset, 4);havoc main_#t~mem11#1; 850#L556-2 call main_#t~mem12#1 := read~int(main_~tmp~0#1.base, main_~tmp~0#1.offset, 4);call main_#t~mem13#1 := read~int(main_~id~0#1.base, main_~id~0#1.offset, 4); 880#L555-1 assume !!(main_#t~mem12#1 != main_#t~mem13#1 && 0 != main_#t~nondet14#1);havoc main_#t~mem12#1;havoc main_#t~mem13#1;havoc main_#t~nondet14#1;call main_#t~mem15#1 := read~int(main_~tmp~0#1.base, main_~tmp~0#1.offset, 4);call main_#t~mem16#1 := read~int(main_~maxId~0#1.base, main_~maxId~0#1.offset, 4); 881#L556 assume main_#t~mem15#1 <= main_#t~mem16#1;havoc main_#t~mem15#1;havoc main_#t~mem16#1;call main_#t~mem17#1 := read~int(main_~tmp~0#1.base, main_~tmp~0#1.offset, 4);call write~int(1 + main_#t~mem17#1, main_~tmp~0#1.base, main_~tmp~0#1.offset, 4);havoc main_#t~mem17#1; 879#L556-2 call main_#t~mem12#1 := read~int(main_~tmp~0#1.base, main_~tmp~0#1.offset, 4);call main_#t~mem13#1 := read~int(main_~id~0#1.base, main_~id~0#1.offset, 4); 877#L555-1 assume !!(main_#t~mem12#1 != main_#t~mem13#1 && 0 != main_#t~nondet14#1);havoc main_#t~mem12#1;havoc main_#t~mem13#1;havoc main_#t~nondet14#1;call main_#t~mem15#1 := read~int(main_~tmp~0#1.base, main_~tmp~0#1.offset, 4);call main_#t~mem16#1 := read~int(main_~maxId~0#1.base, main_~maxId~0#1.offset, 4); 853#L556 assume !(main_#t~mem15#1 <= main_#t~mem16#1);havoc main_#t~mem15#1;havoc main_#t~mem16#1;call write~int(0, main_~tmp~0#1.base, main_~tmp~0#1.offset, 4); 854#L556-2 call main_#t~mem12#1 := read~int(main_~tmp~0#1.base, main_~tmp~0#1.offset, 4);call main_#t~mem13#1 := read~int(main_~id~0#1.base, main_~id~0#1.offset, 4); 857#L555-1 assume !!(main_#t~mem12#1 != main_#t~mem13#1 && 0 != main_#t~nondet14#1);havoc main_#t~mem12#1;havoc main_#t~mem13#1;havoc main_#t~nondet14#1;call main_#t~mem15#1 := read~int(main_~tmp~0#1.base, main_~tmp~0#1.offset, 4);call main_#t~mem16#1 := read~int(main_~maxId~0#1.base, main_~maxId~0#1.offset, 4); 882#L556 assume main_#t~mem15#1 <= main_#t~mem16#1;havoc main_#t~mem15#1;havoc main_#t~mem16#1;call main_#t~mem17#1 := read~int(main_~tmp~0#1.base, main_~tmp~0#1.offset, 4);call write~int(1 + main_#t~mem17#1, main_~tmp~0#1.base, main_~tmp~0#1.offset, 4);havoc main_#t~mem17#1; 858#L556-2 call main_#t~mem12#1 := read~int(main_~tmp~0#1.base, main_~tmp~0#1.offset, 4);call main_#t~mem13#1 := read~int(main_~id~0#1.base, main_~id~0#1.offset, 4); 859#L555-1 assume !!(main_#t~mem12#1 != main_#t~mem13#1 && 0 != main_#t~nondet14#1);havoc main_#t~mem12#1;havoc main_#t~mem13#1;havoc main_#t~nondet14#1;call main_#t~mem15#1 := read~int(main_~tmp~0#1.base, main_~tmp~0#1.offset, 4);call main_#t~mem16#1 := read~int(main_~maxId~0#1.base, main_~maxId~0#1.offset, 4); 855#L556 assume main_#t~mem15#1 <= main_#t~mem16#1;havoc main_#t~mem15#1;havoc main_#t~mem16#1;call main_#t~mem17#1 := read~int(main_~tmp~0#1.base, main_~tmp~0#1.offset, 4);call write~int(1 + main_#t~mem17#1, main_~tmp~0#1.base, main_~tmp~0#1.offset, 4);havoc main_#t~mem17#1; 856#L556-2 call main_#t~mem12#1 := read~int(main_~tmp~0#1.base, main_~tmp~0#1.offset, 4);call main_#t~mem13#1 := read~int(main_~id~0#1.base, main_~id~0#1.offset, 4); 863#L555-1 assume !!(main_#t~mem12#1 != main_#t~mem13#1 && 0 != main_#t~nondet14#1);havoc main_#t~mem12#1;havoc main_#t~mem13#1;havoc main_#t~nondet14#1;call main_#t~mem15#1 := read~int(main_~tmp~0#1.base, main_~tmp~0#1.offset, 4);call main_#t~mem16#1 := read~int(main_~maxId~0#1.base, main_~maxId~0#1.offset, 4); 864#L556 assume main_#t~mem15#1 <= main_#t~mem16#1;havoc main_#t~mem15#1;havoc main_#t~mem16#1;call main_#t~mem17#1 := read~int(main_~tmp~0#1.base, main_~tmp~0#1.offset, 4);call write~int(1 + main_#t~mem17#1, main_~tmp~0#1.base, main_~tmp~0#1.offset, 4);havoc main_#t~mem17#1; 878#L556-2 call main_#t~mem12#1 := read~int(main_~tmp~0#1.base, main_~tmp~0#1.offset, 4);call main_#t~mem13#1 := read~int(main_~id~0#1.base, main_~id~0#1.offset, 4); 870#L555-1 assume !!(main_#t~mem12#1 != main_#t~mem13#1 && 0 != main_#t~nondet14#1);havoc main_#t~mem12#1;havoc main_#t~mem13#1;havoc main_#t~nondet14#1;call main_#t~mem15#1 := read~int(main_~tmp~0#1.base, main_~tmp~0#1.offset, 4);call main_#t~mem16#1 := read~int(main_~maxId~0#1.base, main_~maxId~0#1.offset, 4); 871#L556 assume !(main_#t~mem15#1 <= main_#t~mem16#1);havoc main_#t~mem15#1;havoc main_#t~mem16#1;call write~int(0, main_~tmp~0#1.base, main_~tmp~0#1.offset, 4); 869#L556-2 [2021-12-06 22:13:56,598 INFO L793 eck$LassoCheckResult]: Loop: 869#L556-2 call main_#t~mem12#1 := read~int(main_~tmp~0#1.base, main_~tmp~0#1.offset, 4);call main_#t~mem13#1 := read~int(main_~id~0#1.base, main_~id~0#1.offset, 4); 876#L555-1 assume !!(main_#t~mem12#1 != main_#t~mem13#1 && 0 != main_#t~nondet14#1);havoc main_#t~mem12#1;havoc main_#t~mem13#1;havoc main_#t~nondet14#1;call main_#t~mem15#1 := read~int(main_~tmp~0#1.base, main_~tmp~0#1.offset, 4);call main_#t~mem16#1 := read~int(main_~maxId~0#1.base, main_~maxId~0#1.offset, 4); 865#L556 assume main_#t~mem15#1 <= main_#t~mem16#1;havoc main_#t~mem15#1;havoc main_#t~mem16#1;call main_#t~mem17#1 := read~int(main_~tmp~0#1.base, main_~tmp~0#1.offset, 4);call write~int(1 + main_#t~mem17#1, main_~tmp~0#1.base, main_~tmp~0#1.offset, 4);havoc main_#t~mem17#1; 866#L556-2 call main_#t~mem12#1 := read~int(main_~tmp~0#1.base, main_~tmp~0#1.offset, 4);call main_#t~mem13#1 := read~int(main_~id~0#1.base, main_~id~0#1.offset, 4); 861#L555-1 assume !!(main_#t~mem12#1 != main_#t~mem13#1 && 0 != main_#t~nondet14#1);havoc main_#t~mem12#1;havoc main_#t~mem13#1;havoc main_#t~nondet14#1;call main_#t~mem15#1 := read~int(main_~tmp~0#1.base, main_~tmp~0#1.offset, 4);call main_#t~mem16#1 := read~int(main_~maxId~0#1.base, main_~maxId~0#1.offset, 4); 862#L556 assume main_#t~mem15#1 <= main_#t~mem16#1;havoc main_#t~mem15#1;havoc main_#t~mem16#1;call main_#t~mem17#1 := read~int(main_~tmp~0#1.base, main_~tmp~0#1.offset, 4);call write~int(1 + main_#t~mem17#1, main_~tmp~0#1.base, main_~tmp~0#1.offset, 4);havoc main_#t~mem17#1; 875#L556-2 call main_#t~mem12#1 := read~int(main_~tmp~0#1.base, main_~tmp~0#1.offset, 4);call main_#t~mem13#1 := read~int(main_~id~0#1.base, main_~id~0#1.offset, 4); 874#L555-1 assume !!(main_#t~mem12#1 != main_#t~mem13#1 && 0 != main_#t~nondet14#1);havoc main_#t~mem12#1;havoc main_#t~mem13#1;havoc main_#t~nondet14#1;call main_#t~mem15#1 := read~int(main_~tmp~0#1.base, main_~tmp~0#1.offset, 4);call main_#t~mem16#1 := read~int(main_~maxId~0#1.base, main_~maxId~0#1.offset, 4); 873#L556 assume main_#t~mem15#1 <= main_#t~mem16#1;havoc main_#t~mem15#1;havoc main_#t~mem16#1;call main_#t~mem17#1 := read~int(main_~tmp~0#1.base, main_~tmp~0#1.offset, 4);call write~int(1 + main_#t~mem17#1, main_~tmp~0#1.base, main_~tmp~0#1.offset, 4);havoc main_#t~mem17#1; 868#L556-2 call main_#t~mem12#1 := read~int(main_~tmp~0#1.base, main_~tmp~0#1.offset, 4);call main_#t~mem13#1 := read~int(main_~id~0#1.base, main_~id~0#1.offset, 4); 872#L555-1 assume !!(main_#t~mem12#1 != main_#t~mem13#1 && 0 != main_#t~nondet14#1);havoc main_#t~mem12#1;havoc main_#t~mem13#1;havoc main_#t~nondet14#1;call main_#t~mem15#1 := read~int(main_~tmp~0#1.base, main_~tmp~0#1.offset, 4);call main_#t~mem16#1 := read~int(main_~maxId~0#1.base, main_~maxId~0#1.offset, 4); 867#L556 assume !(main_#t~mem15#1 <= main_#t~mem16#1);havoc main_#t~mem15#1;havoc main_#t~mem16#1;call write~int(0, main_~tmp~0#1.base, main_~tmp~0#1.offset, 4); 869#L556-2 [2021-12-06 22:13:56,598 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 22:13:56,598 INFO L85 PathProgramCache]: Analyzing trace with hash -1620751923, now seen corresponding path program 5 times [2021-12-06 22:13:56,598 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 22:13:56,598 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1378247141] [2021-12-06 22:13:56,598 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 22:13:56,598 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 22:13:56,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 22:13:56,873 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 1 proven. 44 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-06 22:13:56,874 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 22:13:56,874 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1378247141] [2021-12-06 22:13:56,874 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1378247141] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-06 22:13:56,874 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [555952920] [2021-12-06 22:13:56,874 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2021-12-06 22:13:56,874 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-06 22:13:56,874 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5c76b4a-cc84-48e5-8fd3-d4665334f85f/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 22:13:56,897 INFO L229 MonitoredProcess]: Starting monitored process 37 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5c76b4a-cc84-48e5-8fd3-d4665334f85f/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-06 22:13:56,898 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5c76b4a-cc84-48e5-8fd3-d4665334f85f/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (37)] Waiting until timeout for monitored process [2021-12-06 22:13:56,965 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 6 check-sat command(s) [2021-12-06 22:13:56,965 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-12-06 22:13:56,967 INFO L263 TraceCheckSpWp]: Trace formula consists of 315 conjuncts, 53 conjunts are in the unsatisfiable core [2021-12-06 22:13:56,970 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-06 22:13:56,987 INFO L354 Elim1Store]: treesize reduction 26, result has 42.2 percent of original size [2021-12-06 22:13:56,988 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 2 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 36 treesize of output 51 [2021-12-06 22:13:56,991 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2021-12-06 22:13:56,995 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 11 [2021-12-06 22:13:57,005 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2021-12-06 22:13:57,007 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 15 [2021-12-06 22:13:57,009 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 9 treesize of output 7 [2021-12-06 22:13:57,015 INFO L354 Elim1Store]: treesize reduction 11, result has 45.0 percent of original size [2021-12-06 22:13:57,015 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 1 case distinctions, treesize of input 9 treesize of output 15 [2021-12-06 22:13:57,074 INFO L354 Elim1Store]: treesize reduction 35, result has 53.3 percent of original size [2021-12-06 22:13:57,074 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 48 treesize of output 63 [2021-12-06 22:13:57,159 INFO L354 Elim1Store]: treesize reduction 16, result has 36.0 percent of original size [2021-12-06 22:13:57,159 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 16 treesize of output 18 [2021-12-06 22:13:57,237 INFO L354 Elim1Store]: treesize reduction 11, result has 8.3 percent of original size [2021-12-06 22:13:57,237 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 1 case distinctions, treesize of input 74 treesize of output 48 [2021-12-06 22:13:57,343 INFO L354 Elim1Store]: treesize reduction 11, result has 8.3 percent of original size [2021-12-06 22:13:57,343 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 1 case distinctions, treesize of input 78 treesize of output 48 [2021-12-06 22:13:57,436 INFO L354 Elim1Store]: treesize reduction 11, result has 8.3 percent of original size [2021-12-06 22:13:57,437 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 1 case distinctions, treesize of input 37 treesize of output 31 [2021-12-06 22:13:57,522 INFO L354 Elim1Store]: treesize reduction 11, result has 8.3 percent of original size [2021-12-06 22:13:57,522 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 1 case distinctions, treesize of input 43 treesize of output 33 [2021-12-06 22:13:58,134 INFO L354 Elim1Store]: treesize reduction 11, result has 8.3 percent of original size [2021-12-06 22:13:58,135 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 1 case distinctions, treesize of input 59 treesize of output 41 [2021-12-06 22:13:58,210 INFO L354 Elim1Store]: treesize reduction 3, result has 75.0 percent of original size [2021-12-06 22:13:58,210 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 1 case distinctions, treesize of input 41 treesize of output 26 [2021-12-06 22:13:58,225 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 0 proven. 44 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-12-06 22:13:58,225 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-12-06 22:16:03,787 WARN L227 SmtUtils]: Spent 8.32s on a formula simplification. DAG size of input: 43 DAG size of output: 36 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2021-12-06 22:16:57,132 WARN L227 SmtUtils]: Spent 12.02s on a formula simplification that was a NOOP. DAG size: 37 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2021-12-06 22:17:25,084 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 5 proven. 40 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-06 22:17:25,084 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [555952920] provided 0 perfect and 2 imperfect interpolant sequences [2021-12-06 22:17:25,084 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-12-06 22:17:25,084 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15, 15, 15] total 39 [2021-12-06 22:17:25,085 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1116148587] [2021-12-06 22:17:25,085 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-12-06 22:17:25,085 INFO L796 eck$LassoCheckResult]: stem already infeasible [2021-12-06 22:17:25,085 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 22:17:25,086 INFO L85 PathProgramCache]: Analyzing trace with hash 1662545091, now seen corresponding path program 2 times [2021-12-06 22:17:25,086 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 22:17:25,086 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [748919764] [2021-12-06 22:17:25,086 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 22:17:25,086 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 22:17:25,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-06 22:17:25,098 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-06 22:17:25,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-06 22:17:25,115 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-06 22:17:26,049 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 22:17:26,050 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 40 interpolants. [2021-12-06 22:17:26,050 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=182, Invalid=1371, Unknown=7, NotChecked=0, Total=1560 [2021-12-06 22:17:26,051 INFO L87 Difference]: Start difference. First operand 34 states and 37 transitions. cyclomatic complexity: 6 Second operand has 40 states, 39 states have (on average 1.5384615384615385) internal successors, (60), 40 states have internal predecessors, (60), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 22:17:27,058 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 22:17:27,058 INFO L93 Difference]: Finished difference Result 53 states and 57 transitions. [2021-12-06 22:17:27,058 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-12-06 22:17:27,058 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 53 states and 57 transitions. [2021-12-06 22:17:27,059 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 12 [2021-12-06 22:17:27,060 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 53 states to 39 states and 42 transitions. [2021-12-06 22:17:27,060 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 22 [2021-12-06 22:17:27,060 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 22 [2021-12-06 22:17:27,060 INFO L73 IsDeterministic]: Start isDeterministic. Operand 39 states and 42 transitions. [2021-12-06 22:17:27,060 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2021-12-06 22:17:27,060 INFO L681 BuchiCegarLoop]: Abstraction has 39 states and 42 transitions. [2021-12-06 22:17:27,060 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 39 states and 42 transitions. [2021-12-06 22:17:27,062 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 39 to 37. [2021-12-06 22:17:27,062 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 37 states, 37 states have (on average 1.0810810810810811) internal successors, (40), 36 states have internal predecessors, (40), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 22:17:27,062 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37 states to 37 states and 40 transitions. [2021-12-06 22:17:27,062 INFO L704 BuchiCegarLoop]: Abstraction has 37 states and 40 transitions. [2021-12-06 22:17:27,062 INFO L587 BuchiCegarLoop]: Abstraction has 37 states and 40 transitions. [2021-12-06 22:17:27,062 INFO L425 BuchiCegarLoop]: ======== Iteration 8============ [2021-12-06 22:17:27,063 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 37 states and 40 transitions. [2021-12-06 22:17:27,063 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 12 [2021-12-06 22:17:27,063 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-12-06 22:17:27,063 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-12-06 22:17:27,064 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [7, 7, 5, 2, 1, 1, 1, 1] [2021-12-06 22:17:27,064 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [4, 4, 3, 1] [2021-12-06 22:17:27,064 INFO L791 eck$LassoCheckResult]: Stem: 1136#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier; 1137#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~malloc2#1.base, main_#t~malloc2#1.offset, main_#t~malloc3#1.base, main_#t~malloc3#1.offset, main_#t~nondet4#1, main_#t~nondet5#1, main_#t~mem6#1, main_#t~mem7#1, main_#t~mem8#1, main_#t~short9#1, main_#t~malloc10#1.base, main_#t~malloc10#1.offset, main_#t~mem11#1, main_#t~mem15#1, main_#t~mem16#1, main_#t~mem17#1, main_#t~mem12#1, main_#t~mem13#1, main_#t~nondet14#1, main_~tmp~0#1.base, main_~tmp~0#1.offset, main_~id~0#1.base, main_~id~0#1.offset, main_~maxId~0#1.base, main_~maxId~0#1.offset;call main_#t~malloc2#1.base, main_#t~malloc2#1.offset := #Ultimate.allocOnStack(4);main_~id~0#1.base, main_~id~0#1.offset := main_#t~malloc2#1.base, main_#t~malloc2#1.offset;call main_#t~malloc3#1.base, main_#t~malloc3#1.offset := #Ultimate.allocOnStack(4);main_~maxId~0#1.base, main_~maxId~0#1.offset := main_#t~malloc3#1.base, main_#t~malloc3#1.offset;call write~int(main_#t~nondet4#1, main_~id~0#1.base, main_~id~0#1.offset, 4);havoc main_#t~nondet4#1;call write~int(main_#t~nondet5#1, main_~maxId~0#1.base, main_~maxId~0#1.offset, 4);havoc main_#t~nondet5#1;call main_#t~mem6#1 := read~int(main_~id~0#1.base, main_~id~0#1.offset, 4);main_#t~short9#1 := 0 <= main_#t~mem6#1; 1144#L552 assume main_#t~short9#1;call main_#t~mem7#1 := read~int(main_~id~0#1.base, main_~id~0#1.offset, 4);call main_#t~mem8#1 := read~int(main_~maxId~0#1.base, main_~maxId~0#1.offset, 4);main_#t~short9#1 := main_#t~mem7#1 < main_#t~mem8#1; 1134#L552-2 assume main_#t~short9#1;havoc main_#t~mem6#1;havoc main_#t~mem7#1;havoc main_#t~mem8#1;havoc main_#t~short9#1;call main_#t~malloc10#1.base, main_#t~malloc10#1.offset := #Ultimate.allocOnStack(4);main_~tmp~0#1.base, main_~tmp~0#1.offset := main_#t~malloc10#1.base, main_#t~malloc10#1.offset;call main_#t~mem11#1 := read~int(main_~id~0#1.base, main_~id~0#1.offset, 4);call write~int(1 + main_#t~mem11#1, main_~tmp~0#1.base, main_~tmp~0#1.offset, 4);havoc main_#t~mem11#1; 1135#L556-2 call main_#t~mem12#1 := read~int(main_~tmp~0#1.base, main_~tmp~0#1.offset, 4);call main_#t~mem13#1 := read~int(main_~id~0#1.base, main_~id~0#1.offset, 4); 1142#L555-1 assume !!(main_#t~mem12#1 != main_#t~mem13#1 && 0 != main_#t~nondet14#1);havoc main_#t~mem12#1;havoc main_#t~mem13#1;havoc main_#t~nondet14#1;call main_#t~mem15#1 := read~int(main_~tmp~0#1.base, main_~tmp~0#1.offset, 4);call main_#t~mem16#1 := read~int(main_~maxId~0#1.base, main_~maxId~0#1.offset, 4); 1140#L556 assume main_#t~mem15#1 <= main_#t~mem16#1;havoc main_#t~mem15#1;havoc main_#t~mem16#1;call main_#t~mem17#1 := read~int(main_~tmp~0#1.base, main_~tmp~0#1.offset, 4);call write~int(1 + main_#t~mem17#1, main_~tmp~0#1.base, main_~tmp~0#1.offset, 4);havoc main_#t~mem17#1; 1141#L556-2 call main_#t~mem12#1 := read~int(main_~tmp~0#1.base, main_~tmp~0#1.offset, 4);call main_#t~mem13#1 := read~int(main_~id~0#1.base, main_~id~0#1.offset, 4); 1143#L555-1 assume !!(main_#t~mem12#1 != main_#t~mem13#1 && 0 != main_#t~nondet14#1);havoc main_#t~mem12#1;havoc main_#t~mem13#1;havoc main_#t~nondet14#1;call main_#t~mem15#1 := read~int(main_~tmp~0#1.base, main_~tmp~0#1.offset, 4);call main_#t~mem16#1 := read~int(main_~maxId~0#1.base, main_~maxId~0#1.offset, 4); 1146#L556 assume main_#t~mem15#1 <= main_#t~mem16#1;havoc main_#t~mem15#1;havoc main_#t~mem16#1;call main_#t~mem17#1 := read~int(main_~tmp~0#1.base, main_~tmp~0#1.offset, 4);call write~int(1 + main_#t~mem17#1, main_~tmp~0#1.base, main_~tmp~0#1.offset, 4);havoc main_#t~mem17#1; 1161#L556-2 call main_#t~mem12#1 := read~int(main_~tmp~0#1.base, main_~tmp~0#1.offset, 4);call main_#t~mem13#1 := read~int(main_~id~0#1.base, main_~id~0#1.offset, 4); 1145#L555-1 assume !!(main_#t~mem12#1 != main_#t~mem13#1 && 0 != main_#t~nondet14#1);havoc main_#t~mem12#1;havoc main_#t~mem13#1;havoc main_#t~nondet14#1;call main_#t~mem15#1 := read~int(main_~tmp~0#1.base, main_~tmp~0#1.offset, 4);call main_#t~mem16#1 := read~int(main_~maxId~0#1.base, main_~maxId~0#1.offset, 4); 1138#L556 assume !(main_#t~mem15#1 <= main_#t~mem16#1);havoc main_#t~mem15#1;havoc main_#t~mem16#1;call write~int(0, main_~tmp~0#1.base, main_~tmp~0#1.offset, 4); 1139#L556-2 call main_#t~mem12#1 := read~int(main_~tmp~0#1.base, main_~tmp~0#1.offset, 4);call main_#t~mem13#1 := read~int(main_~id~0#1.base, main_~id~0#1.offset, 4); 1170#L555-1 assume !!(main_#t~mem12#1 != main_#t~mem13#1 && 0 != main_#t~nondet14#1);havoc main_#t~mem12#1;havoc main_#t~mem13#1;havoc main_#t~nondet14#1;call main_#t~mem15#1 := read~int(main_~tmp~0#1.base, main_~tmp~0#1.offset, 4);call main_#t~mem16#1 := read~int(main_~maxId~0#1.base, main_~maxId~0#1.offset, 4); 1169#L556 assume main_#t~mem15#1 <= main_#t~mem16#1;havoc main_#t~mem15#1;havoc main_#t~mem16#1;call main_#t~mem17#1 := read~int(main_~tmp~0#1.base, main_~tmp~0#1.offset, 4);call write~int(1 + main_#t~mem17#1, main_~tmp~0#1.base, main_~tmp~0#1.offset, 4);havoc main_#t~mem17#1; 1168#L556-2 call main_#t~mem12#1 := read~int(main_~tmp~0#1.base, main_~tmp~0#1.offset, 4);call main_#t~mem13#1 := read~int(main_~id~0#1.base, main_~id~0#1.offset, 4); 1167#L555-1 assume !!(main_#t~mem12#1 != main_#t~mem13#1 && 0 != main_#t~nondet14#1);havoc main_#t~mem12#1;havoc main_#t~mem13#1;havoc main_#t~nondet14#1;call main_#t~mem15#1 := read~int(main_~tmp~0#1.base, main_~tmp~0#1.offset, 4);call main_#t~mem16#1 := read~int(main_~maxId~0#1.base, main_~maxId~0#1.offset, 4); 1166#L556 assume main_#t~mem15#1 <= main_#t~mem16#1;havoc main_#t~mem15#1;havoc main_#t~mem16#1;call main_#t~mem17#1 := read~int(main_~tmp~0#1.base, main_~tmp~0#1.offset, 4);call write~int(1 + main_#t~mem17#1, main_~tmp~0#1.base, main_~tmp~0#1.offset, 4);havoc main_#t~mem17#1; 1165#L556-2 call main_#t~mem12#1 := read~int(main_~tmp~0#1.base, main_~tmp~0#1.offset, 4);call main_#t~mem13#1 := read~int(main_~id~0#1.base, main_~id~0#1.offset, 4); 1163#L555-1 assume !!(main_#t~mem12#1 != main_#t~mem13#1 && 0 != main_#t~nondet14#1);havoc main_#t~mem12#1;havoc main_#t~mem13#1;havoc main_#t~nondet14#1;call main_#t~mem15#1 := read~int(main_~tmp~0#1.base, main_~tmp~0#1.offset, 4);call main_#t~mem16#1 := read~int(main_~maxId~0#1.base, main_~maxId~0#1.offset, 4); 1164#L556 assume main_#t~mem15#1 <= main_#t~mem16#1;havoc main_#t~mem15#1;havoc main_#t~mem16#1;call main_#t~mem17#1 := read~int(main_~tmp~0#1.base, main_~tmp~0#1.offset, 4);call write~int(1 + main_#t~mem17#1, main_~tmp~0#1.base, main_~tmp~0#1.offset, 4);havoc main_#t~mem17#1; 1162#L556-2 call main_#t~mem12#1 := read~int(main_~tmp~0#1.base, main_~tmp~0#1.offset, 4);call main_#t~mem13#1 := read~int(main_~id~0#1.base, main_~id~0#1.offset, 4); 1160#L555-1 assume !!(main_#t~mem12#1 != main_#t~mem13#1 && 0 != main_#t~nondet14#1);havoc main_#t~mem12#1;havoc main_#t~mem13#1;havoc main_#t~nondet14#1;call main_#t~mem15#1 := read~int(main_~tmp~0#1.base, main_~tmp~0#1.offset, 4);call main_#t~mem16#1 := read~int(main_~maxId~0#1.base, main_~maxId~0#1.offset, 4); 1159#L556 assume !(main_#t~mem15#1 <= main_#t~mem16#1);havoc main_#t~mem15#1;havoc main_#t~mem16#1;call write~int(0, main_~tmp~0#1.base, main_~tmp~0#1.offset, 4); 1151#L556-2 [2021-12-06 22:17:27,064 INFO L793 eck$LassoCheckResult]: Loop: 1151#L556-2 call main_#t~mem12#1 := read~int(main_~tmp~0#1.base, main_~tmp~0#1.offset, 4);call main_#t~mem13#1 := read~int(main_~id~0#1.base, main_~id~0#1.offset, 4); 1157#L555-1 assume !!(main_#t~mem12#1 != main_#t~mem13#1 && 0 != main_#t~nondet14#1);havoc main_#t~mem12#1;havoc main_#t~mem13#1;havoc main_#t~nondet14#1;call main_#t~mem15#1 := read~int(main_~tmp~0#1.base, main_~tmp~0#1.offset, 4);call main_#t~mem16#1 := read~int(main_~maxId~0#1.base, main_~maxId~0#1.offset, 4); 1147#L556 assume main_#t~mem15#1 <= main_#t~mem16#1;havoc main_#t~mem15#1;havoc main_#t~mem16#1;call main_#t~mem17#1 := read~int(main_~tmp~0#1.base, main_~tmp~0#1.offset, 4);call write~int(1 + main_#t~mem17#1, main_~tmp~0#1.base, main_~tmp~0#1.offset, 4);havoc main_#t~mem17#1; 1148#L556-2 call main_#t~mem12#1 := read~int(main_~tmp~0#1.base, main_~tmp~0#1.offset, 4);call main_#t~mem13#1 := read~int(main_~id~0#1.base, main_~id~0#1.offset, 4); 1158#L555-1 assume !!(main_#t~mem12#1 != main_#t~mem13#1 && 0 != main_#t~nondet14#1);havoc main_#t~mem12#1;havoc main_#t~mem13#1;havoc main_#t~nondet14#1;call main_#t~mem15#1 := read~int(main_~tmp~0#1.base, main_~tmp~0#1.offset, 4);call main_#t~mem16#1 := read~int(main_~maxId~0#1.base, main_~maxId~0#1.offset, 4); 1156#L556 assume main_#t~mem15#1 <= main_#t~mem16#1;havoc main_#t~mem15#1;havoc main_#t~mem16#1;call main_#t~mem17#1 := read~int(main_~tmp~0#1.base, main_~tmp~0#1.offset, 4);call write~int(1 + main_#t~mem17#1, main_~tmp~0#1.base, main_~tmp~0#1.offset, 4);havoc main_#t~mem17#1; 1155#L556-2 call main_#t~mem12#1 := read~int(main_~tmp~0#1.base, main_~tmp~0#1.offset, 4);call main_#t~mem13#1 := read~int(main_~id~0#1.base, main_~id~0#1.offset, 4); 1154#L555-1 assume !!(main_#t~mem12#1 != main_#t~mem13#1 && 0 != main_#t~nondet14#1);havoc main_#t~mem12#1;havoc main_#t~mem13#1;havoc main_#t~nondet14#1;call main_#t~mem15#1 := read~int(main_~tmp~0#1.base, main_~tmp~0#1.offset, 4);call main_#t~mem16#1 := read~int(main_~maxId~0#1.base, main_~maxId~0#1.offset, 4); 1153#L556 assume main_#t~mem15#1 <= main_#t~mem16#1;havoc main_#t~mem15#1;havoc main_#t~mem16#1;call main_#t~mem17#1 := read~int(main_~tmp~0#1.base, main_~tmp~0#1.offset, 4);call write~int(1 + main_#t~mem17#1, main_~tmp~0#1.base, main_~tmp~0#1.offset, 4);havoc main_#t~mem17#1; 1150#L556-2 call main_#t~mem12#1 := read~int(main_~tmp~0#1.base, main_~tmp~0#1.offset, 4);call main_#t~mem13#1 := read~int(main_~id~0#1.base, main_~id~0#1.offset, 4); 1152#L555-1 assume !!(main_#t~mem12#1 != main_#t~mem13#1 && 0 != main_#t~nondet14#1);havoc main_#t~mem12#1;havoc main_#t~mem13#1;havoc main_#t~nondet14#1;call main_#t~mem15#1 := read~int(main_~tmp~0#1.base, main_~tmp~0#1.offset, 4);call main_#t~mem16#1 := read~int(main_~maxId~0#1.base, main_~maxId~0#1.offset, 4); 1149#L556 assume !(main_#t~mem15#1 <= main_#t~mem16#1);havoc main_#t~mem15#1;havoc main_#t~mem16#1;call write~int(0, main_~tmp~0#1.base, main_~tmp~0#1.offset, 4); 1151#L556-2 [2021-12-06 22:17:27,064 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 22:17:27,064 INFO L85 PathProgramCache]: Analyzing trace with hash 636022350, now seen corresponding path program 6 times [2021-12-06 22:17:27,064 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 22:17:27,065 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [711081880] [2021-12-06 22:17:27,065 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 22:17:27,065 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 22:17:27,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 22:17:27,509 INFO L134 CoverageAnalysis]: Checked inductivity of 63 backedges. 3 proven. 60 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-06 22:17:27,509 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 22:17:27,509 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [711081880] [2021-12-06 22:17:27,509 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [711081880] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-06 22:17:27,509 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1092314812] [2021-12-06 22:17:27,509 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2021-12-06 22:17:27,510 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-06 22:17:27,510 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5c76b4a-cc84-48e5-8fd3-d4665334f85f/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 22:17:27,510 INFO L229 MonitoredProcess]: Starting monitored process 38 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5c76b4a-cc84-48e5-8fd3-d4665334f85f/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-06 22:17:27,511 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5c76b4a-cc84-48e5-8fd3-d4665334f85f/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (38)] Waiting until timeout for monitored process [2021-12-06 22:17:27,606 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 7 check-sat command(s) [2021-12-06 22:17:27,606 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-12-06 22:17:27,608 INFO L263 TraceCheckSpWp]: Trace formula consists of 350 conjuncts, 59 conjunts are in the unsatisfiable core [2021-12-06 22:17:27,612 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-06 22:17:27,635 INFO L173 IndexEqualityManager]: detected equality via solver [2021-12-06 22:17:27,640 INFO L354 Elim1Store]: treesize reduction 4, result has 55.6 percent of original size [2021-12-06 22:17:27,640 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 19 treesize of output 18 [2021-12-06 22:17:27,648 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 14 [2021-12-06 22:17:27,652 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2021-12-06 22:17:27,739 INFO L354 Elim1Store]: treesize reduction 8, result has 52.9 percent of original size [2021-12-06 22:17:27,740 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 16 treesize of output 18 [2021-12-06 22:17:27,746 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 23 [2021-12-06 22:17:27,826 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 28 [2021-12-06 22:17:27,964 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 38 treesize of output 37 [2021-12-06 22:17:27,968 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 17 [2021-12-06 22:17:28,043 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 32 treesize of output 30 [2021-12-06 22:17:28,233 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 60 treesize of output 42 [2021-12-06 22:17:28,362 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 56 treesize of output 42 [2021-12-06 22:17:28,500 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 56 treesize of output 42 [2021-12-06 22:17:28,605 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 50 treesize of output 22 [2021-12-06 22:17:28,635 INFO L134 CoverageAnalysis]: Checked inductivity of 63 backedges. 4 proven. 59 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-06 22:17:28,635 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-12-06 22:17:29,118 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-12-06 22:17:29,118 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 2 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 27 treesize of output 33 [2021-12-06 22:17:29,651 WARN L838 $PredicateComparison]: unable to prove that (forall ((v_arrayElimArr_8 (Array Int Int)) (|v_ULTIMATE.start_main_#t~malloc10#1.base_88| Int) (|v_ULTIMATE.start_main_~tmp~0#1.offset_73| Int) (|ULTIMATE.start_main_~maxId~0#1.offset| Int) (v_ArrVal_426 Int) (v_arrayElimArr_9 (Array Int Int))) (let ((.cse0 (select v_arrayElimArr_9 |v_ULTIMATE.start_main_~tmp~0#1.offset_73|))) (or (< 3 .cse0) (not (= (select |c_#valid| |v_ULTIMATE.start_main_#t~malloc10#1.base_88|) 0)) (< v_ArrVal_426 (+ 2 (select (select |c_#memory_int| |c_ULTIMATE.start_main_~id~0#1.base|) |c_ULTIMATE.start_main_~id~0#1.offset|))) (< (select (select (store |c_#memory_int| |v_ULTIMATE.start_main_#t~malloc10#1.base_88| (store (select |c_#memory_int| |v_ULTIMATE.start_main_#t~malloc10#1.base_88|) |v_ULTIMATE.start_main_~tmp~0#1.offset_73| v_ArrVal_426)) |c_ULTIMATE.start_main_~maxId~0#1.base|) |ULTIMATE.start_main_~maxId~0#1.offset|) v_ArrVal_426) (<= .cse0 (select (select (store |c_#memory_int| |v_ULTIMATE.start_main_#t~malloc10#1.base_88| v_arrayElimArr_9) |c_ULTIMATE.start_main_~maxId~0#1.base|) |ULTIMATE.start_main_~maxId~0#1.offset|)) (not (= (select v_arrayElimArr_8 |v_ULTIMATE.start_main_~tmp~0#1.offset_73|) 0)) (= (select (select (store |c_#memory_int| |v_ULTIMATE.start_main_#t~malloc10#1.base_88| v_arrayElimArr_8) |c_ULTIMATE.start_main_~id~0#1.base|) |c_ULTIMATE.start_main_~id~0#1.offset|) 0)))) is different from false [2021-12-06 22:17:29,882 INFO L134 CoverageAnalysis]: Checked inductivity of 63 backedges. 2 proven. 61 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-06 22:17:29,882 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1092314812] provided 0 perfect and 2 imperfect interpolant sequences [2021-12-06 22:17:29,882 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-12-06 22:17:29,882 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15, 14, 14] total 40 [2021-12-06 22:17:29,882 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [507676036] [2021-12-06 22:17:29,882 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-12-06 22:17:29,882 INFO L796 eck$LassoCheckResult]: stem already infeasible [2021-12-06 22:17:29,883 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 22:17:29,883 INFO L85 PathProgramCache]: Analyzing trace with hash 1662545091, now seen corresponding path program 3 times [2021-12-06 22:17:29,883 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 22:17:29,883 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [98660721] [2021-12-06 22:17:29,883 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 22:17:29,883 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 22:17:29,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-06 22:17:29,893 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-06 22:17:29,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-06 22:17:29,903 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-06 22:17:30,891 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 22:17:30,892 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 41 interpolants. [2021-12-06 22:17:30,892 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=200, Invalid=1338, Unknown=26, NotChecked=76, Total=1640 [2021-12-06 22:17:30,893 INFO L87 Difference]: Start difference. First operand 37 states and 40 transitions. cyclomatic complexity: 6 Second operand has 41 states, 40 states have (on average 1.8) internal successors, (72), 41 states have internal predecessors, (72), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 22:17:31,903 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 22:17:31,903 INFO L93 Difference]: Finished difference Result 63 states and 67 transitions. [2021-12-06 22:17:31,903 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2021-12-06 22:17:31,904 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 63 states and 67 transitions. [2021-12-06 22:17:31,904 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 12 [2021-12-06 22:17:31,905 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 63 states to 61 states and 65 transitions. [2021-12-06 22:17:31,905 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 36 [2021-12-06 22:17:31,905 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 36 [2021-12-06 22:17:31,905 INFO L73 IsDeterministic]: Start isDeterministic. Operand 61 states and 65 transitions. [2021-12-06 22:17:31,905 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2021-12-06 22:17:31,905 INFO L681 BuchiCegarLoop]: Abstraction has 61 states and 65 transitions. [2021-12-06 22:17:31,905 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 61 states and 65 transitions. [2021-12-06 22:17:31,907 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 61 to 48. [2021-12-06 22:17:31,908 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 48 states, 48 states have (on average 1.0833333333333333) internal successors, (52), 47 states have internal predecessors, (52), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 22:17:31,908 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 48 states to 48 states and 52 transitions. [2021-12-06 22:17:31,908 INFO L704 BuchiCegarLoop]: Abstraction has 48 states and 52 transitions. [2021-12-06 22:17:31,908 INFO L587 BuchiCegarLoop]: Abstraction has 48 states and 52 transitions. [2021-12-06 22:17:31,908 INFO L425 BuchiCegarLoop]: ======== Iteration 9============ [2021-12-06 22:17:31,908 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 48 states and 52 transitions. [2021-12-06 22:17:31,909 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 12 [2021-12-06 22:17:31,909 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-12-06 22:17:31,909 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-12-06 22:17:31,909 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [9, 9, 7, 2, 1, 1, 1, 1] [2021-12-06 22:17:31,909 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [4, 4, 3, 1] [2021-12-06 22:17:31,910 INFO L791 eck$LassoCheckResult]: Stem: 1460#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier; 1461#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~malloc2#1.base, main_#t~malloc2#1.offset, main_#t~malloc3#1.base, main_#t~malloc3#1.offset, main_#t~nondet4#1, main_#t~nondet5#1, main_#t~mem6#1, main_#t~mem7#1, main_#t~mem8#1, main_#t~short9#1, main_#t~malloc10#1.base, main_#t~malloc10#1.offset, main_#t~mem11#1, main_#t~mem15#1, main_#t~mem16#1, main_#t~mem17#1, main_#t~mem12#1, main_#t~mem13#1, main_#t~nondet14#1, main_~tmp~0#1.base, main_~tmp~0#1.offset, main_~id~0#1.base, main_~id~0#1.offset, main_~maxId~0#1.base, main_~maxId~0#1.offset;call main_#t~malloc2#1.base, main_#t~malloc2#1.offset := #Ultimate.allocOnStack(4);main_~id~0#1.base, main_~id~0#1.offset := main_#t~malloc2#1.base, main_#t~malloc2#1.offset;call main_#t~malloc3#1.base, main_#t~malloc3#1.offset := #Ultimate.allocOnStack(4);main_~maxId~0#1.base, main_~maxId~0#1.offset := main_#t~malloc3#1.base, main_#t~malloc3#1.offset;call write~int(main_#t~nondet4#1, main_~id~0#1.base, main_~id~0#1.offset, 4);havoc main_#t~nondet4#1;call write~int(main_#t~nondet5#1, main_~maxId~0#1.base, main_~maxId~0#1.offset, 4);havoc main_#t~nondet5#1;call main_#t~mem6#1 := read~int(main_~id~0#1.base, main_~id~0#1.offset, 4);main_#t~short9#1 := 0 <= main_#t~mem6#1; 1468#L552 assume main_#t~short9#1;call main_#t~mem7#1 := read~int(main_~id~0#1.base, main_~id~0#1.offset, 4);call main_#t~mem8#1 := read~int(main_~maxId~0#1.base, main_~maxId~0#1.offset, 4);main_#t~short9#1 := main_#t~mem7#1 < main_#t~mem8#1; 1458#L552-2 assume main_#t~short9#1;havoc main_#t~mem6#1;havoc main_#t~mem7#1;havoc main_#t~mem8#1;havoc main_#t~short9#1;call main_#t~malloc10#1.base, main_#t~malloc10#1.offset := #Ultimate.allocOnStack(4);main_~tmp~0#1.base, main_~tmp~0#1.offset := main_#t~malloc10#1.base, main_#t~malloc10#1.offset;call main_#t~mem11#1 := read~int(main_~id~0#1.base, main_~id~0#1.offset, 4);call write~int(1 + main_#t~mem11#1, main_~tmp~0#1.base, main_~tmp~0#1.offset, 4);havoc main_#t~mem11#1; 1459#L556-2 call main_#t~mem12#1 := read~int(main_~tmp~0#1.base, main_~tmp~0#1.offset, 4);call main_#t~mem13#1 := read~int(main_~id~0#1.base, main_~id~0#1.offset, 4); 1479#L555-1 assume !!(main_#t~mem12#1 != main_#t~mem13#1 && 0 != main_#t~nondet14#1);havoc main_#t~mem12#1;havoc main_#t~mem13#1;havoc main_#t~nondet14#1;call main_#t~mem15#1 := read~int(main_~tmp~0#1.base, main_~tmp~0#1.offset, 4);call main_#t~mem16#1 := read~int(main_~maxId~0#1.base, main_~maxId~0#1.offset, 4); 1478#L556 assume main_#t~mem15#1 <= main_#t~mem16#1;havoc main_#t~mem15#1;havoc main_#t~mem16#1;call main_#t~mem17#1 := read~int(main_~tmp~0#1.base, main_~tmp~0#1.offset, 4);call write~int(1 + main_#t~mem17#1, main_~tmp~0#1.base, main_~tmp~0#1.offset, 4);havoc main_#t~mem17#1; 1477#L556-2 call main_#t~mem12#1 := read~int(main_~tmp~0#1.base, main_~tmp~0#1.offset, 4);call main_#t~mem13#1 := read~int(main_~id~0#1.base, main_~id~0#1.offset, 4); 1475#L555-1 assume !!(main_#t~mem12#1 != main_#t~mem13#1 && 0 != main_#t~nondet14#1);havoc main_#t~mem12#1;havoc main_#t~mem13#1;havoc main_#t~nondet14#1;call main_#t~mem15#1 := read~int(main_~tmp~0#1.base, main_~tmp~0#1.offset, 4);call main_#t~mem16#1 := read~int(main_~maxId~0#1.base, main_~maxId~0#1.offset, 4); 1476#L556 assume main_#t~mem15#1 <= main_#t~mem16#1;havoc main_#t~mem15#1;havoc main_#t~mem16#1;call main_#t~mem17#1 := read~int(main_~tmp~0#1.base, main_~tmp~0#1.offset, 4);call write~int(1 + main_#t~mem17#1, main_~tmp~0#1.base, main_~tmp~0#1.offset, 4);havoc main_#t~mem17#1; 1474#L556-2 call main_#t~mem12#1 := read~int(main_~tmp~0#1.base, main_~tmp~0#1.offset, 4);call main_#t~mem13#1 := read~int(main_~id~0#1.base, main_~id~0#1.offset, 4); 1473#L555-1 assume !!(main_#t~mem12#1 != main_#t~mem13#1 && 0 != main_#t~nondet14#1);havoc main_#t~mem12#1;havoc main_#t~mem13#1;havoc main_#t~nondet14#1;call main_#t~mem15#1 := read~int(main_~tmp~0#1.base, main_~tmp~0#1.offset, 4);call main_#t~mem16#1 := read~int(main_~maxId~0#1.base, main_~maxId~0#1.offset, 4); 1472#L556 assume !(main_#t~mem15#1 <= main_#t~mem16#1);havoc main_#t~mem15#1;havoc main_#t~mem16#1;call write~int(0, main_~tmp~0#1.base, main_~tmp~0#1.offset, 4); 1471#L556-2 call main_#t~mem12#1 := read~int(main_~tmp~0#1.base, main_~tmp~0#1.offset, 4);call main_#t~mem13#1 := read~int(main_~id~0#1.base, main_~id~0#1.offset, 4); 1470#L555-1 assume !!(main_#t~mem12#1 != main_#t~mem13#1 && 0 != main_#t~nondet14#1);havoc main_#t~mem12#1;havoc main_#t~mem13#1;havoc main_#t~nondet14#1;call main_#t~mem15#1 := read~int(main_~tmp~0#1.base, main_~tmp~0#1.offset, 4);call main_#t~mem16#1 := read~int(main_~maxId~0#1.base, main_~maxId~0#1.offset, 4); 1464#L556 assume main_#t~mem15#1 <= main_#t~mem16#1;havoc main_#t~mem15#1;havoc main_#t~mem16#1;call main_#t~mem17#1 := read~int(main_~tmp~0#1.base, main_~tmp~0#1.offset, 4);call write~int(1 + main_#t~mem17#1, main_~tmp~0#1.base, main_~tmp~0#1.offset, 4);havoc main_#t~mem17#1; 1465#L556-2 call main_#t~mem12#1 := read~int(main_~tmp~0#1.base, main_~tmp~0#1.offset, 4);call main_#t~mem13#1 := read~int(main_~id~0#1.base, main_~id~0#1.offset, 4); 1467#L555-1 assume !!(main_#t~mem12#1 != main_#t~mem13#1 && 0 != main_#t~nondet14#1);havoc main_#t~mem12#1;havoc main_#t~mem13#1;havoc main_#t~nondet14#1;call main_#t~mem15#1 := read~int(main_~tmp~0#1.base, main_~tmp~0#1.offset, 4);call main_#t~mem16#1 := read~int(main_~maxId~0#1.base, main_~maxId~0#1.offset, 4); 1505#L556 assume main_#t~mem15#1 <= main_#t~mem16#1;havoc main_#t~mem15#1;havoc main_#t~mem16#1;call main_#t~mem17#1 := read~int(main_~tmp~0#1.base, main_~tmp~0#1.offset, 4);call write~int(1 + main_#t~mem17#1, main_~tmp~0#1.base, main_~tmp~0#1.offset, 4);havoc main_#t~mem17#1; 1504#L556-2 call main_#t~mem12#1 := read~int(main_~tmp~0#1.base, main_~tmp~0#1.offset, 4);call main_#t~mem13#1 := read~int(main_~id~0#1.base, main_~id~0#1.offset, 4); 1503#L555-1 assume !!(main_#t~mem12#1 != main_#t~mem13#1 && 0 != main_#t~nondet14#1);havoc main_#t~mem12#1;havoc main_#t~mem13#1;havoc main_#t~nondet14#1;call main_#t~mem15#1 := read~int(main_~tmp~0#1.base, main_~tmp~0#1.offset, 4);call main_#t~mem16#1 := read~int(main_~maxId~0#1.base, main_~maxId~0#1.offset, 4); 1502#L556 assume main_#t~mem15#1 <= main_#t~mem16#1;havoc main_#t~mem15#1;havoc main_#t~mem16#1;call main_#t~mem17#1 := read~int(main_~tmp~0#1.base, main_~tmp~0#1.offset, 4);call write~int(1 + main_#t~mem17#1, main_~tmp~0#1.base, main_~tmp~0#1.offset, 4);havoc main_#t~mem17#1; 1501#L556-2 call main_#t~mem12#1 := read~int(main_~tmp~0#1.base, main_~tmp~0#1.offset, 4);call main_#t~mem13#1 := read~int(main_~id~0#1.base, main_~id~0#1.offset, 4); 1500#L555-1 assume !!(main_#t~mem12#1 != main_#t~mem13#1 && 0 != main_#t~nondet14#1);havoc main_#t~mem12#1;havoc main_#t~mem13#1;havoc main_#t~nondet14#1;call main_#t~mem15#1 := read~int(main_~tmp~0#1.base, main_~tmp~0#1.offset, 4);call main_#t~mem16#1 := read~int(main_~maxId~0#1.base, main_~maxId~0#1.offset, 4); 1499#L556 assume main_#t~mem15#1 <= main_#t~mem16#1;havoc main_#t~mem15#1;havoc main_#t~mem16#1;call main_#t~mem17#1 := read~int(main_~tmp~0#1.base, main_~tmp~0#1.offset, 4);call write~int(1 + main_#t~mem17#1, main_~tmp~0#1.base, main_~tmp~0#1.offset, 4);havoc main_#t~mem17#1; 1498#L556-2 call main_#t~mem12#1 := read~int(main_~tmp~0#1.base, main_~tmp~0#1.offset, 4);call main_#t~mem13#1 := read~int(main_~id~0#1.base, main_~id~0#1.offset, 4); 1488#L555-1 assume !!(main_#t~mem12#1 != main_#t~mem13#1 && 0 != main_#t~nondet14#1);havoc main_#t~mem12#1;havoc main_#t~mem13#1;havoc main_#t~nondet14#1;call main_#t~mem15#1 := read~int(main_~tmp~0#1.base, main_~tmp~0#1.offset, 4);call main_#t~mem16#1 := read~int(main_~maxId~0#1.base, main_~maxId~0#1.offset, 4); 1490#L556 assume main_#t~mem15#1 <= main_#t~mem16#1;havoc main_#t~mem15#1;havoc main_#t~mem16#1;call main_#t~mem17#1 := read~int(main_~tmp~0#1.base, main_~tmp~0#1.offset, 4);call write~int(1 + main_#t~mem17#1, main_~tmp~0#1.base, main_~tmp~0#1.offset, 4);havoc main_#t~mem17#1; 1487#L556-2 call main_#t~mem12#1 := read~int(main_~tmp~0#1.base, main_~tmp~0#1.offset, 4);call main_#t~mem13#1 := read~int(main_~id~0#1.base, main_~id~0#1.offset, 4); 1483#L555-1 assume !!(main_#t~mem12#1 != main_#t~mem13#1 && 0 != main_#t~nondet14#1);havoc main_#t~mem12#1;havoc main_#t~mem13#1;havoc main_#t~nondet14#1;call main_#t~mem15#1 := read~int(main_~tmp~0#1.base, main_~tmp~0#1.offset, 4);call main_#t~mem16#1 := read~int(main_~maxId~0#1.base, main_~maxId~0#1.offset, 4); 1484#L556 assume !(main_#t~mem15#1 <= main_#t~mem16#1);havoc main_#t~mem15#1;havoc main_#t~mem16#1;call write~int(0, main_~tmp~0#1.base, main_~tmp~0#1.offset, 4); 1480#L556-2 [2021-12-06 22:17:31,910 INFO L793 eck$LassoCheckResult]: Loop: 1480#L556-2 call main_#t~mem12#1 := read~int(main_~tmp~0#1.base, main_~tmp~0#1.offset, 4);call main_#t~mem13#1 := read~int(main_~id~0#1.base, main_~id~0#1.offset, 4); 1496#L555-1 assume !!(main_#t~mem12#1 != main_#t~mem13#1 && 0 != main_#t~nondet14#1);havoc main_#t~mem12#1;havoc main_#t~mem13#1;havoc main_#t~nondet14#1;call main_#t~mem15#1 := read~int(main_~tmp~0#1.base, main_~tmp~0#1.offset, 4);call main_#t~mem16#1 := read~int(main_~maxId~0#1.base, main_~maxId~0#1.offset, 4); 1495#L556 assume main_#t~mem15#1 <= main_#t~mem16#1;havoc main_#t~mem15#1;havoc main_#t~mem16#1;call main_#t~mem17#1 := read~int(main_~tmp~0#1.base, main_~tmp~0#1.offset, 4);call write~int(1 + main_#t~mem17#1, main_~tmp~0#1.base, main_~tmp~0#1.offset, 4);havoc main_#t~mem17#1; 1494#L556-2 call main_#t~mem12#1 := read~int(main_~tmp~0#1.base, main_~tmp~0#1.offset, 4);call main_#t~mem13#1 := read~int(main_~id~0#1.base, main_~id~0#1.offset, 4); 1493#L555-1 assume !!(main_#t~mem12#1 != main_#t~mem13#1 && 0 != main_#t~nondet14#1);havoc main_#t~mem12#1;havoc main_#t~mem13#1;havoc main_#t~nondet14#1;call main_#t~mem15#1 := read~int(main_~tmp~0#1.base, main_~tmp~0#1.offset, 4);call main_#t~mem16#1 := read~int(main_~maxId~0#1.base, main_~maxId~0#1.offset, 4); 1492#L556 assume main_#t~mem15#1 <= main_#t~mem16#1;havoc main_#t~mem15#1;havoc main_#t~mem16#1;call main_#t~mem17#1 := read~int(main_~tmp~0#1.base, main_~tmp~0#1.offset, 4);call write~int(1 + main_#t~mem17#1, main_~tmp~0#1.base, main_~tmp~0#1.offset, 4);havoc main_#t~mem17#1; 1491#L556-2 call main_#t~mem12#1 := read~int(main_~tmp~0#1.base, main_~tmp~0#1.offset, 4);call main_#t~mem13#1 := read~int(main_~id~0#1.base, main_~id~0#1.offset, 4); 1489#L555-1 assume !!(main_#t~mem12#1 != main_#t~mem13#1 && 0 != main_#t~nondet14#1);havoc main_#t~mem12#1;havoc main_#t~mem13#1;havoc main_#t~nondet14#1;call main_#t~mem15#1 := read~int(main_~tmp~0#1.base, main_~tmp~0#1.offset, 4);call main_#t~mem16#1 := read~int(main_~maxId~0#1.base, main_~maxId~0#1.offset, 4); 1486#L556 assume main_#t~mem15#1 <= main_#t~mem16#1;havoc main_#t~mem15#1;havoc main_#t~mem16#1;call main_#t~mem17#1 := read~int(main_~tmp~0#1.base, main_~tmp~0#1.offset, 4);call write~int(1 + main_#t~mem17#1, main_~tmp~0#1.base, main_~tmp~0#1.offset, 4);havoc main_#t~mem17#1; 1482#L556-2 call main_#t~mem12#1 := read~int(main_~tmp~0#1.base, main_~tmp~0#1.offset, 4);call main_#t~mem13#1 := read~int(main_~id~0#1.base, main_~id~0#1.offset, 4); 1485#L555-1 assume !!(main_#t~mem12#1 != main_#t~mem13#1 && 0 != main_#t~nondet14#1);havoc main_#t~mem12#1;havoc main_#t~mem13#1;havoc main_#t~nondet14#1;call main_#t~mem15#1 := read~int(main_~tmp~0#1.base, main_~tmp~0#1.offset, 4);call main_#t~mem16#1 := read~int(main_~maxId~0#1.base, main_~maxId~0#1.offset, 4); 1481#L556 assume !(main_#t~mem15#1 <= main_#t~mem16#1);havoc main_#t~mem15#1;havoc main_#t~mem16#1;call write~int(0, main_~tmp~0#1.base, main_~tmp~0#1.offset, 4); 1480#L556-2 [2021-12-06 22:17:31,910 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 22:17:31,910 INFO L85 PathProgramCache]: Analyzing trace with hash -203905938, now seen corresponding path program 7 times [2021-12-06 22:17:31,910 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 22:17:31,910 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [103458652] [2021-12-06 22:17:31,910 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 22:17:31,911 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 22:17:31,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 22:17:32,498 INFO L134 CoverageAnalysis]: Checked inductivity of 108 backedges. 1 proven. 104 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2021-12-06 22:17:32,498 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 22:17:32,498 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [103458652] [2021-12-06 22:17:32,498 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [103458652] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-06 22:17:32,498 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1695125764] [2021-12-06 22:17:32,499 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2021-12-06 22:17:32,499 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-06 22:17:32,499 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5c76b4a-cc84-48e5-8fd3-d4665334f85f/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 22:17:32,499 INFO L229 MonitoredProcess]: Starting monitored process 39 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5c76b4a-cc84-48e5-8fd3-d4665334f85f/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-06 22:17:32,500 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5c76b4a-cc84-48e5-8fd3-d4665334f85f/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (39)] Waiting until timeout for monitored process [2021-12-06 22:17:32,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 22:17:32,564 INFO L263 TraceCheckSpWp]: Trace formula consists of 420 conjuncts, 50 conjunts are in the unsatisfiable core [2021-12-06 22:17:32,567 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-06 22:17:32,600 INFO L354 Elim1Store]: treesize reduction 19, result has 44.1 percent of original size [2021-12-06 22:17:32,601 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 17 treesize of output 25 [2021-12-06 22:17:32,621 INFO L354 Elim1Store]: treesize reduction 16, result has 36.0 percent of original size [2021-12-06 22:17:32,622 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 16 treesize of output 18 [2021-12-06 22:17:32,650 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 22 [2021-12-06 22:17:32,719 INFO L354 Elim1Store]: treesize reduction 11, result has 8.3 percent of original size [2021-12-06 22:17:32,720 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 1 case distinctions, treesize of input 45 treesize of output 35 [2021-12-06 22:17:32,837 INFO L354 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2021-12-06 22:17:32,838 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 1 case distinctions, treesize of input 44 treesize of output 41 [2021-12-06 22:17:32,841 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 17 [2021-12-06 22:17:32,880 INFO L354 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2021-12-06 22:17:32,881 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 20 treesize of output 25 [2021-12-06 22:17:32,913 INFO L354 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2021-12-06 22:17:32,914 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 20 treesize of output 25 [2021-12-06 22:17:40,499 INFO L354 Elim1Store]: treesize reduction 11, result has 8.3 percent of original size [2021-12-06 22:17:40,499 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 1 case distinctions, treesize of input 43 treesize of output 33 [2021-12-06 22:17:42,765 INFO L354 Elim1Store]: treesize reduction 11, result has 8.3 percent of original size [2021-12-06 22:17:42,765 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 1 case distinctions, treesize of input 45 treesize of output 35 [2021-12-06 22:17:52,860 INFO L354 Elim1Store]: treesize reduction 11, result has 8.3 percent of original size [2021-12-06 22:17:52,860 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 1 case distinctions, treesize of input 59 treesize of output 41 [2021-12-06 22:17:55,149 INFO L354 Elim1Store]: treesize reduction 3, result has 75.0 percent of original size [2021-12-06 22:17:55,150 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 1 case distinctions, treesize of input 41 treesize of output 26 [2021-12-06 22:17:55,176 INFO L134 CoverageAnalysis]: Checked inductivity of 108 backedges. 0 proven. 103 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2021-12-06 22:17:55,176 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-12-06 22:17:58,333 INFO L354 Elim1Store]: treesize reduction 4, result has 63.6 percent of original size [2021-12-06 22:17:58,333 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 142 treesize of output 121 [2021-12-06 22:17:58,368 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-12-06 22:17:58,369 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 76 treesize of output 84 [2021-12-06 22:17:58,730 INFO L134 CoverageAnalysis]: Checked inductivity of 108 backedges. 12 proven. 93 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2021-12-06 22:17:58,730 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1695125764] provided 0 perfect and 2 imperfect interpolant sequences [2021-12-06 22:17:58,730 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-12-06 22:17:58,730 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 15, 16] total 40 [2021-12-06 22:17:58,730 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [246288659] [2021-12-06 22:17:58,730 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-12-06 22:17:58,731 INFO L796 eck$LassoCheckResult]: stem already infeasible [2021-12-06 22:17:58,731 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 22:17:58,731 INFO L85 PathProgramCache]: Analyzing trace with hash 1662545091, now seen corresponding path program 4 times [2021-12-06 22:17:58,731 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 22:17:58,731 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [56437609] [2021-12-06 22:17:58,731 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 22:17:58,731 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 22:17:58,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-06 22:17:58,740 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-06 22:17:58,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-06 22:17:58,750 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-06 22:17:59,802 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 22:17:59,802 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 41 interpolants. [2021-12-06 22:17:59,803 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=140, Invalid=1434, Unknown=66, NotChecked=0, Total=1640 [2021-12-06 22:17:59,803 INFO L87 Difference]: Start difference. First operand 48 states and 52 transitions. cyclomatic complexity: 7 Second operand has 41 states, 40 states have (on average 1.8) internal successors, (72), 41 states have internal predecessors, (72), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 22:18:01,480 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 22:18:01,480 INFO L93 Difference]: Finished difference Result 78 states and 84 transitions. [2021-12-06 22:18:01,480 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2021-12-06 22:18:01,481 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 78 states and 84 transitions. [2021-12-06 22:18:01,482 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 12 [2021-12-06 22:18:01,483 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 78 states to 56 states and 61 transitions. [2021-12-06 22:18:01,483 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 28 [2021-12-06 22:18:01,483 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 28 [2021-12-06 22:18:01,483 INFO L73 IsDeterministic]: Start isDeterministic. Operand 56 states and 61 transitions. [2021-12-06 22:18:01,483 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2021-12-06 22:18:01,483 INFO L681 BuchiCegarLoop]: Abstraction has 56 states and 61 transitions. [2021-12-06 22:18:01,483 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 56 states and 61 transitions. [2021-12-06 22:18:01,486 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 56 to 51. [2021-12-06 22:18:01,486 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 51 states, 51 states have (on average 1.0784313725490196) internal successors, (55), 50 states have internal predecessors, (55), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 22:18:01,487 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 51 states to 51 states and 55 transitions. [2021-12-06 22:18:01,487 INFO L704 BuchiCegarLoop]: Abstraction has 51 states and 55 transitions. [2021-12-06 22:18:01,487 INFO L587 BuchiCegarLoop]: Abstraction has 51 states and 55 transitions. [2021-12-06 22:18:01,487 INFO L425 BuchiCegarLoop]: ======== Iteration 10============ [2021-12-06 22:18:01,487 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 51 states and 55 transitions. [2021-12-06 22:18:01,488 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 12 [2021-12-06 22:18:01,488 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-12-06 22:18:01,488 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-12-06 22:18:01,489 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [10, 10, 8, 2, 1, 1, 1, 1] [2021-12-06 22:18:01,489 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [4, 4, 3, 1] [2021-12-06 22:18:01,489 INFO L791 eck$LassoCheckResult]: Stem: 1845#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier; 1846#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~malloc2#1.base, main_#t~malloc2#1.offset, main_#t~malloc3#1.base, main_#t~malloc3#1.offset, main_#t~nondet4#1, main_#t~nondet5#1, main_#t~mem6#1, main_#t~mem7#1, main_#t~mem8#1, main_#t~short9#1, main_#t~malloc10#1.base, main_#t~malloc10#1.offset, main_#t~mem11#1, main_#t~mem15#1, main_#t~mem16#1, main_#t~mem17#1, main_#t~mem12#1, main_#t~mem13#1, main_#t~nondet14#1, main_~tmp~0#1.base, main_~tmp~0#1.offset, main_~id~0#1.base, main_~id~0#1.offset, main_~maxId~0#1.base, main_~maxId~0#1.offset;call main_#t~malloc2#1.base, main_#t~malloc2#1.offset := #Ultimate.allocOnStack(4);main_~id~0#1.base, main_~id~0#1.offset := main_#t~malloc2#1.base, main_#t~malloc2#1.offset;call main_#t~malloc3#1.base, main_#t~malloc3#1.offset := #Ultimate.allocOnStack(4);main_~maxId~0#1.base, main_~maxId~0#1.offset := main_#t~malloc3#1.base, main_#t~malloc3#1.offset;call write~int(main_#t~nondet4#1, main_~id~0#1.base, main_~id~0#1.offset, 4);havoc main_#t~nondet4#1;call write~int(main_#t~nondet5#1, main_~maxId~0#1.base, main_~maxId~0#1.offset, 4);havoc main_#t~nondet5#1;call main_#t~mem6#1 := read~int(main_~id~0#1.base, main_~id~0#1.offset, 4);main_#t~short9#1 := 0 <= main_#t~mem6#1; 1854#L552 assume main_#t~short9#1;call main_#t~mem7#1 := read~int(main_~id~0#1.base, main_~id~0#1.offset, 4);call main_#t~mem8#1 := read~int(main_~maxId~0#1.base, main_~maxId~0#1.offset, 4);main_#t~short9#1 := main_#t~mem7#1 < main_#t~mem8#1; 1843#L552-2 assume main_#t~short9#1;havoc main_#t~mem6#1;havoc main_#t~mem7#1;havoc main_#t~mem8#1;havoc main_#t~short9#1;call main_#t~malloc10#1.base, main_#t~malloc10#1.offset := #Ultimate.allocOnStack(4);main_~tmp~0#1.base, main_~tmp~0#1.offset := main_#t~malloc10#1.base, main_#t~malloc10#1.offset;call main_#t~mem11#1 := read~int(main_~id~0#1.base, main_~id~0#1.offset, 4);call write~int(1 + main_#t~mem11#1, main_~tmp~0#1.base, main_~tmp~0#1.offset, 4);havoc main_#t~mem11#1; 1844#L556-2 call main_#t~mem12#1 := read~int(main_~tmp~0#1.base, main_~tmp~0#1.offset, 4);call main_#t~mem13#1 := read~int(main_~id~0#1.base, main_~id~0#1.offset, 4); 1851#L555-1 assume !!(main_#t~mem12#1 != main_#t~mem13#1 && 0 != main_#t~nondet14#1);havoc main_#t~mem12#1;havoc main_#t~mem13#1;havoc main_#t~nondet14#1;call main_#t~mem15#1 := read~int(main_~tmp~0#1.base, main_~tmp~0#1.offset, 4);call main_#t~mem16#1 := read~int(main_~maxId~0#1.base, main_~maxId~0#1.offset, 4); 1890#L556 assume main_#t~mem15#1 <= main_#t~mem16#1;havoc main_#t~mem15#1;havoc main_#t~mem16#1;call main_#t~mem17#1 := read~int(main_~tmp~0#1.base, main_~tmp~0#1.offset, 4);call write~int(1 + main_#t~mem17#1, main_~tmp~0#1.base, main_~tmp~0#1.offset, 4);havoc main_#t~mem17#1; 1891#L556-2 call main_#t~mem12#1 := read~int(main_~tmp~0#1.base, main_~tmp~0#1.offset, 4);call main_#t~mem13#1 := read~int(main_~id~0#1.base, main_~id~0#1.offset, 4); 1892#L555-1 assume !!(main_#t~mem12#1 != main_#t~mem13#1 && 0 != main_#t~nondet14#1);havoc main_#t~mem12#1;havoc main_#t~mem13#1;havoc main_#t~nondet14#1;call main_#t~mem15#1 := read~int(main_~tmp~0#1.base, main_~tmp~0#1.offset, 4);call main_#t~mem16#1 := read~int(main_~maxId~0#1.base, main_~maxId~0#1.offset, 4); 1893#L556 assume main_#t~mem15#1 <= main_#t~mem16#1;havoc main_#t~mem15#1;havoc main_#t~mem16#1;call main_#t~mem17#1 := read~int(main_~tmp~0#1.base, main_~tmp~0#1.offset, 4);call write~int(1 + main_#t~mem17#1, main_~tmp~0#1.base, main_~tmp~0#1.offset, 4);havoc main_#t~mem17#1; 1852#L556-2 call main_#t~mem12#1 := read~int(main_~tmp~0#1.base, main_~tmp~0#1.offset, 4);call main_#t~mem13#1 := read~int(main_~id~0#1.base, main_~id~0#1.offset, 4); 1853#L555-1 assume !!(main_#t~mem12#1 != main_#t~mem13#1 && 0 != main_#t~nondet14#1);havoc main_#t~mem12#1;havoc main_#t~mem13#1;havoc main_#t~nondet14#1;call main_#t~mem15#1 := read~int(main_~tmp~0#1.base, main_~tmp~0#1.offset, 4);call main_#t~mem16#1 := read~int(main_~maxId~0#1.base, main_~maxId~0#1.offset, 4); 1849#L556 assume main_#t~mem15#1 <= main_#t~mem16#1;havoc main_#t~mem15#1;havoc main_#t~mem16#1;call main_#t~mem17#1 := read~int(main_~tmp~0#1.base, main_~tmp~0#1.offset, 4);call write~int(1 + main_#t~mem17#1, main_~tmp~0#1.base, main_~tmp~0#1.offset, 4);havoc main_#t~mem17#1; 1850#L556-2 call main_#t~mem12#1 := read~int(main_~tmp~0#1.base, main_~tmp~0#1.offset, 4);call main_#t~mem13#1 := read~int(main_~id~0#1.base, main_~id~0#1.offset, 4); 1874#L555-1 assume !!(main_#t~mem12#1 != main_#t~mem13#1 && 0 != main_#t~nondet14#1);havoc main_#t~mem12#1;havoc main_#t~mem13#1;havoc main_#t~nondet14#1;call main_#t~mem15#1 := read~int(main_~tmp~0#1.base, main_~tmp~0#1.offset, 4);call main_#t~mem16#1 := read~int(main_~maxId~0#1.base, main_~maxId~0#1.offset, 4); 1847#L556 assume !(main_#t~mem15#1 <= main_#t~mem16#1);havoc main_#t~mem15#1;havoc main_#t~mem16#1;call write~int(0, main_~tmp~0#1.base, main_~tmp~0#1.offset, 4); 1848#L556-2 call main_#t~mem12#1 := read~int(main_~tmp~0#1.base, main_~tmp~0#1.offset, 4);call main_#t~mem13#1 := read~int(main_~id~0#1.base, main_~id~0#1.offset, 4); 1889#L555-1 assume !!(main_#t~mem12#1 != main_#t~mem13#1 && 0 != main_#t~nondet14#1);havoc main_#t~mem12#1;havoc main_#t~mem13#1;havoc main_#t~nondet14#1;call main_#t~mem15#1 := read~int(main_~tmp~0#1.base, main_~tmp~0#1.offset, 4);call main_#t~mem16#1 := read~int(main_~maxId~0#1.base, main_~maxId~0#1.offset, 4); 1888#L556 assume main_#t~mem15#1 <= main_#t~mem16#1;havoc main_#t~mem15#1;havoc main_#t~mem16#1;call main_#t~mem17#1 := read~int(main_~tmp~0#1.base, main_~tmp~0#1.offset, 4);call write~int(1 + main_#t~mem17#1, main_~tmp~0#1.base, main_~tmp~0#1.offset, 4);havoc main_#t~mem17#1; 1887#L556-2 call main_#t~mem12#1 := read~int(main_~tmp~0#1.base, main_~tmp~0#1.offset, 4);call main_#t~mem13#1 := read~int(main_~id~0#1.base, main_~id~0#1.offset, 4); 1886#L555-1 assume !!(main_#t~mem12#1 != main_#t~mem13#1 && 0 != main_#t~nondet14#1);havoc main_#t~mem12#1;havoc main_#t~mem13#1;havoc main_#t~nondet14#1;call main_#t~mem15#1 := read~int(main_~tmp~0#1.base, main_~tmp~0#1.offset, 4);call main_#t~mem16#1 := read~int(main_~maxId~0#1.base, main_~maxId~0#1.offset, 4); 1885#L556 assume main_#t~mem15#1 <= main_#t~mem16#1;havoc main_#t~mem15#1;havoc main_#t~mem16#1;call main_#t~mem17#1 := read~int(main_~tmp~0#1.base, main_~tmp~0#1.offset, 4);call write~int(1 + main_#t~mem17#1, main_~tmp~0#1.base, main_~tmp~0#1.offset, 4);havoc main_#t~mem17#1; 1884#L556-2 call main_#t~mem12#1 := read~int(main_~tmp~0#1.base, main_~tmp~0#1.offset, 4);call main_#t~mem13#1 := read~int(main_~id~0#1.base, main_~id~0#1.offset, 4); 1883#L555-1 assume !!(main_#t~mem12#1 != main_#t~mem13#1 && 0 != main_#t~nondet14#1);havoc main_#t~mem12#1;havoc main_#t~mem13#1;havoc main_#t~nondet14#1;call main_#t~mem15#1 := read~int(main_~tmp~0#1.base, main_~tmp~0#1.offset, 4);call main_#t~mem16#1 := read~int(main_~maxId~0#1.base, main_~maxId~0#1.offset, 4); 1882#L556 assume main_#t~mem15#1 <= main_#t~mem16#1;havoc main_#t~mem15#1;havoc main_#t~mem16#1;call main_#t~mem17#1 := read~int(main_~tmp~0#1.base, main_~tmp~0#1.offset, 4);call write~int(1 + main_#t~mem17#1, main_~tmp~0#1.base, main_~tmp~0#1.offset, 4);havoc main_#t~mem17#1; 1881#L556-2 call main_#t~mem12#1 := read~int(main_~tmp~0#1.base, main_~tmp~0#1.offset, 4);call main_#t~mem13#1 := read~int(main_~id~0#1.base, main_~id~0#1.offset, 4); 1880#L555-1 assume !!(main_#t~mem12#1 != main_#t~mem13#1 && 0 != main_#t~nondet14#1);havoc main_#t~mem12#1;havoc main_#t~mem13#1;havoc main_#t~nondet14#1;call main_#t~mem15#1 := read~int(main_~tmp~0#1.base, main_~tmp~0#1.offset, 4);call main_#t~mem16#1 := read~int(main_~maxId~0#1.base, main_~maxId~0#1.offset, 4); 1878#L556 assume main_#t~mem15#1 <= main_#t~mem16#1;havoc main_#t~mem15#1;havoc main_#t~mem16#1;call main_#t~mem17#1 := read~int(main_~tmp~0#1.base, main_~tmp~0#1.offset, 4);call write~int(1 + main_#t~mem17#1, main_~tmp~0#1.base, main_~tmp~0#1.offset, 4);havoc main_#t~mem17#1; 1875#L556-2 call main_#t~mem12#1 := read~int(main_~tmp~0#1.base, main_~tmp~0#1.offset, 4);call main_#t~mem13#1 := read~int(main_~id~0#1.base, main_~id~0#1.offset, 4); 1873#L555-1 assume !!(main_#t~mem12#1 != main_#t~mem13#1 && 0 != main_#t~nondet14#1);havoc main_#t~mem12#1;havoc main_#t~mem13#1;havoc main_#t~nondet14#1;call main_#t~mem15#1 := read~int(main_~tmp~0#1.base, main_~tmp~0#1.offset, 4);call main_#t~mem16#1 := read~int(main_~maxId~0#1.base, main_~maxId~0#1.offset, 4); 1872#L556 assume !(main_#t~mem15#1 <= main_#t~mem16#1);havoc main_#t~mem15#1;havoc main_#t~mem16#1;call write~int(0, main_~tmp~0#1.base, main_~tmp~0#1.offset, 4); 1871#L556-2 call main_#t~mem12#1 := read~int(main_~tmp~0#1.base, main_~tmp~0#1.offset, 4);call main_#t~mem13#1 := read~int(main_~id~0#1.base, main_~id~0#1.offset, 4); 1869#L555-1 assume !!(main_#t~mem12#1 != main_#t~mem13#1 && 0 != main_#t~nondet14#1);havoc main_#t~mem12#1;havoc main_#t~mem13#1;havoc main_#t~nondet14#1;call main_#t~mem15#1 := read~int(main_~tmp~0#1.base, main_~tmp~0#1.offset, 4);call main_#t~mem16#1 := read~int(main_~maxId~0#1.base, main_~maxId~0#1.offset, 4); 1857#L556 assume main_#t~mem15#1 <= main_#t~mem16#1;havoc main_#t~mem15#1;havoc main_#t~mem16#1;call main_#t~mem17#1 := read~int(main_~tmp~0#1.base, main_~tmp~0#1.offset, 4);call write~int(1 + main_#t~mem17#1, main_~tmp~0#1.base, main_~tmp~0#1.offset, 4);havoc main_#t~mem17#1; 1858#L556-2 [2021-12-06 22:18:01,489 INFO L793 eck$LassoCheckResult]: Loop: 1858#L556-2 call main_#t~mem12#1 := read~int(main_~tmp~0#1.base, main_~tmp~0#1.offset, 4);call main_#t~mem13#1 := read~int(main_~id~0#1.base, main_~id~0#1.offset, 4); 1870#L555-1 assume !!(main_#t~mem12#1 != main_#t~mem13#1 && 0 != main_#t~nondet14#1);havoc main_#t~mem12#1;havoc main_#t~mem13#1;havoc main_#t~nondet14#1;call main_#t~mem15#1 := read~int(main_~tmp~0#1.base, main_~tmp~0#1.offset, 4);call main_#t~mem16#1 := read~int(main_~maxId~0#1.base, main_~maxId~0#1.offset, 4); 1868#L556 assume main_#t~mem15#1 <= main_#t~mem16#1;havoc main_#t~mem15#1;havoc main_#t~mem16#1;call main_#t~mem17#1 := read~int(main_~tmp~0#1.base, main_~tmp~0#1.offset, 4);call write~int(1 + main_#t~mem17#1, main_~tmp~0#1.base, main_~tmp~0#1.offset, 4);havoc main_#t~mem17#1; 1867#L556-2 call main_#t~mem12#1 := read~int(main_~tmp~0#1.base, main_~tmp~0#1.offset, 4);call main_#t~mem13#1 := read~int(main_~id~0#1.base, main_~id~0#1.offset, 4); 1866#L555-1 assume !!(main_#t~mem12#1 != main_#t~mem13#1 && 0 != main_#t~nondet14#1);havoc main_#t~mem12#1;havoc main_#t~mem13#1;havoc main_#t~nondet14#1;call main_#t~mem15#1 := read~int(main_~tmp~0#1.base, main_~tmp~0#1.offset, 4);call main_#t~mem16#1 := read~int(main_~maxId~0#1.base, main_~maxId~0#1.offset, 4); 1865#L556 assume main_#t~mem15#1 <= main_#t~mem16#1;havoc main_#t~mem15#1;havoc main_#t~mem16#1;call main_#t~mem17#1 := read~int(main_~tmp~0#1.base, main_~tmp~0#1.offset, 4);call write~int(1 + main_#t~mem17#1, main_~tmp~0#1.base, main_~tmp~0#1.offset, 4);havoc main_#t~mem17#1; 1864#L556-2 call main_#t~mem12#1 := read~int(main_~tmp~0#1.base, main_~tmp~0#1.offset, 4);call main_#t~mem13#1 := read~int(main_~id~0#1.base, main_~id~0#1.offset, 4); 1863#L555-1 assume !!(main_#t~mem12#1 != main_#t~mem13#1 && 0 != main_#t~nondet14#1);havoc main_#t~mem12#1;havoc main_#t~mem13#1;havoc main_#t~nondet14#1;call main_#t~mem15#1 := read~int(main_~tmp~0#1.base, main_~tmp~0#1.offset, 4);call main_#t~mem16#1 := read~int(main_~maxId~0#1.base, main_~maxId~0#1.offset, 4); 1862#L556 assume main_#t~mem15#1 <= main_#t~mem16#1;havoc main_#t~mem15#1;havoc main_#t~mem16#1;call main_#t~mem17#1 := read~int(main_~tmp~0#1.base, main_~tmp~0#1.offset, 4);call write~int(1 + main_#t~mem17#1, main_~tmp~0#1.base, main_~tmp~0#1.offset, 4);havoc main_#t~mem17#1; 1860#L556-2 call main_#t~mem12#1 := read~int(main_~tmp~0#1.base, main_~tmp~0#1.offset, 4);call main_#t~mem13#1 := read~int(main_~id~0#1.base, main_~id~0#1.offset, 4); 1861#L555-1 assume !!(main_#t~mem12#1 != main_#t~mem13#1 && 0 != main_#t~nondet14#1);havoc main_#t~mem12#1;havoc main_#t~mem13#1;havoc main_#t~nondet14#1;call main_#t~mem15#1 := read~int(main_~tmp~0#1.base, main_~tmp~0#1.offset, 4);call main_#t~mem16#1 := read~int(main_~maxId~0#1.base, main_~maxId~0#1.offset, 4); 1859#L556 assume !(main_#t~mem15#1 <= main_#t~mem16#1);havoc main_#t~mem15#1;havoc main_#t~mem16#1;call write~int(0, main_~tmp~0#1.base, main_~tmp~0#1.offset, 4); 1858#L556-2 [2021-12-06 22:18:01,489 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 22:18:01,490 INFO L85 PathProgramCache]: Analyzing trace with hash 909142473, now seen corresponding path program 8 times [2021-12-06 22:18:01,490 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 22:18:01,490 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [66040265] [2021-12-06 22:18:01,490 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 22:18:01,490 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 22:18:01,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 22:18:01,924 INFO L134 CoverageAnalysis]: Checked inductivity of 135 backedges. 36 proven. 99 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-06 22:18:01,924 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 22:18:01,924 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [66040265] [2021-12-06 22:18:01,924 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [66040265] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-06 22:18:01,924 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1480087300] [2021-12-06 22:18:01,924 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-12-06 22:18:01,924 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-06 22:18:01,924 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5c76b4a-cc84-48e5-8fd3-d4665334f85f/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 22:18:01,925 INFO L229 MonitoredProcess]: Starting monitored process 40 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5c76b4a-cc84-48e5-8fd3-d4665334f85f/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-06 22:18:01,926 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5c76b4a-cc84-48e5-8fd3-d4665334f85f/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (40)] Waiting until timeout for monitored process [2021-12-06 22:18:01,995 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-12-06 22:18:01,995 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-12-06 22:18:01,997 INFO L263 TraceCheckSpWp]: Trace formula consists of 455 conjuncts, 71 conjunts are in the unsatisfiable core [2021-12-06 22:18:02,001 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-06 22:18:02,030 INFO L354 Elim1Store]: treesize reduction 11, result has 45.0 percent of original size [2021-12-06 22:18:02,031 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 1 case distinctions, treesize of input 9 treesize of output 15 [2021-12-06 22:18:02,078 INFO L354 Elim1Store]: treesize reduction 17, result has 46.9 percent of original size [2021-12-06 22:18:02,079 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 36 treesize of output 35 [2021-12-06 22:18:02,117 INFO L354 Elim1Store]: treesize reduction 16, result has 36.0 percent of original size [2021-12-06 22:18:02,118 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 16 treesize of output 18 [2021-12-06 22:18:02,205 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 49 treesize of output 32 [2021-12-06 22:18:02,275 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 49 treesize of output 32 [2021-12-06 22:18:02,401 INFO L354 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2021-12-06 22:18:02,401 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 1 case distinctions, treesize of input 46 treesize of output 43 [2021-12-06 22:18:02,404 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 17 [2021-12-06 22:18:02,480 INFO L354 Elim1Store]: treesize reduction 11, result has 8.3 percent of original size [2021-12-06 22:18:02,480 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 40 treesize of output 34 [2021-12-06 22:18:02,656 INFO L354 Elim1Store]: treesize reduction 11, result has 8.3 percent of original size [2021-12-06 22:18:02,656 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 1 case distinctions, treesize of input 68 treesize of output 46 [2021-12-06 22:18:02,873 INFO L354 Elim1Store]: treesize reduction 11, result has 8.3 percent of original size [2021-12-06 22:18:02,873 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 1 case distinctions, treesize of input 81 treesize of output 51 [2021-12-06 22:18:03,075 INFO L354 Elim1Store]: treesize reduction 11, result has 8.3 percent of original size [2021-12-06 22:18:03,076 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 1 case distinctions, treesize of input 81 treesize of output 51 [2021-12-06 22:18:03,293 INFO L354 Elim1Store]: treesize reduction 11, result has 8.3 percent of original size [2021-12-06 22:18:03,293 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 1 case distinctions, treesize of input 81 treesize of output 51 [2021-12-06 22:18:04,080 INFO L134 CoverageAnalysis]: Checked inductivity of 135 backedges. 49 proven. 86 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-06 22:18:04,080 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-12-06 22:18:42,944 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-12-06 22:18:42,945 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 5 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 5 new quantified variables, introduced 5 case distinctions, treesize of input 79 treesize of output 91 [2021-12-06 22:19:52,852 WARN L838 $PredicateComparison]: unable to prove that (forall ((v_arrayElimArr_11 (Array Int Int)) (v_arrayElimArr_10 (Array Int Int)) (v_arrayElimArr_13 (Array Int Int)) (v_arrayElimArr_12 (Array Int Int)) (v_arrayElimArr_14 (Array Int Int)) (v_ArrVal_609 Int) (|v_ULTIMATE.start_main_#t~malloc10#1.base_92| Int) (|ULTIMATE.start_main_~maxId~0#1.offset| Int) (|v_ULTIMATE.start_main_~tmp~0#1.offset_79| Int)) (let ((.cse1 (select v_arrayElimArr_10 |v_ULTIMATE.start_main_~tmp~0#1.offset_79|)) (.cse2 (store |c_#memory_int| |v_ULTIMATE.start_main_#t~malloc10#1.base_92| v_arrayElimArr_10)) (.cse4 (select v_arrayElimArr_11 |v_ULTIMATE.start_main_~tmp~0#1.offset_79|)) (.cse3 (select v_arrayElimArr_12 |v_ULTIMATE.start_main_~tmp~0#1.offset_79|)) (.cse0 (select v_arrayElimArr_14 |v_ULTIMATE.start_main_~tmp~0#1.offset_79|)) (.cse5 (select v_arrayElimArr_13 |v_ULTIMATE.start_main_~tmp~0#1.offset_79|))) (or (< (+ .cse0 1) .cse1) (= (select (select .cse2 |c_ULTIMATE.start_main_~id~0#1.base|) |c_ULTIMATE.start_main_~id~0#1.offset|) .cse1) (<= .cse1 (select (select .cse2 |c_ULTIMATE.start_main_~maxId~0#1.base|) |ULTIMATE.start_main_~maxId~0#1.offset|)) (< (+ .cse3 1) .cse0) (< (+ .cse4 1) .cse5) (< 0 .cse4) (= .cse4 (select (select (store |c_#memory_int| |v_ULTIMATE.start_main_#t~malloc10#1.base_92| v_arrayElimArr_11) |c_ULTIMATE.start_main_~id~0#1.base|) |c_ULTIMATE.start_main_~id~0#1.offset|)) (< (+ .cse5 1) .cse3) (< v_ArrVal_609 (+ 3 (select (select |c_#memory_int| |c_ULTIMATE.start_main_~id~0#1.base|) |c_ULTIMATE.start_main_~id~0#1.offset|))) (= .cse3 (select (select (store |c_#memory_int| |v_ULTIMATE.start_main_#t~malloc10#1.base_92| v_arrayElimArr_12) |c_ULTIMATE.start_main_~id~0#1.base|) |c_ULTIMATE.start_main_~id~0#1.offset|)) (= .cse0 (select (select (store |c_#memory_int| |v_ULTIMATE.start_main_#t~malloc10#1.base_92| v_arrayElimArr_14) |c_ULTIMATE.start_main_~id~0#1.base|) |c_ULTIMATE.start_main_~id~0#1.offset|)) (not (= (select |c_#valid| |v_ULTIMATE.start_main_#t~malloc10#1.base_92|) 0)) (< (select (select (store |c_#memory_int| |v_ULTIMATE.start_main_#t~malloc10#1.base_92| (store (select |c_#memory_int| |v_ULTIMATE.start_main_#t~malloc10#1.base_92|) |v_ULTIMATE.start_main_~tmp~0#1.offset_79| v_ArrVal_609)) |c_ULTIMATE.start_main_~maxId~0#1.base|) |ULTIMATE.start_main_~maxId~0#1.offset|) v_ArrVal_609) (= (select (select (store |c_#memory_int| |v_ULTIMATE.start_main_#t~malloc10#1.base_92| v_arrayElimArr_13) |c_ULTIMATE.start_main_~id~0#1.base|) |c_ULTIMATE.start_main_~id~0#1.offset|) .cse5)))) is different from false [2021-12-06 22:19:53,472 INFO L134 CoverageAnalysis]: Checked inductivity of 135 backedges. 34 proven. 101 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-06 22:19:53,472 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1480087300] provided 0 perfect and 2 imperfect interpolant sequences [2021-12-06 22:19:53,472 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-12-06 22:19:53,472 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 24, 24] total 59 [2021-12-06 22:19:53,472 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1096806655] [2021-12-06 22:19:53,472 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-12-06 22:19:53,473 INFO L796 eck$LassoCheckResult]: stem already infeasible [2021-12-06 22:19:53,473 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 22:19:53,473 INFO L85 PathProgramCache]: Analyzing trace with hash 1662545091, now seen corresponding path program 5 times [2021-12-06 22:19:53,473 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 22:19:53,473 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2109958991] [2021-12-06 22:19:53,473 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 22:19:53,473 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 22:19:53,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-06 22:19:53,487 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-06 22:19:53,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-06 22:19:53,499 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-06 22:19:54,486 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 22:19:54,486 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 59 interpolants. [2021-12-06 22:19:54,487 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=607, Invalid=2688, Unknown=15, NotChecked=112, Total=3422 [2021-12-06 22:19:54,488 INFO L87 Difference]: Start difference. First operand 51 states and 55 transitions. cyclomatic complexity: 7 Second operand has 59 states, 59 states have (on average 1.5593220338983051) internal successors, (92), 59 states have internal predecessors, (92), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 22:20:01,552 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5c76b4a-cc84-48e5-8fd3-d4665334f85f/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Ended with exit code 101 [2021-12-06 22:20:01,552 WARN L228 Executor]: External (MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5c76b4a-cc84-48e5-8fd3-d4665334f85f/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1) with exit command (exit)) stderr output: (error "out of memory") [2021-12-06 22:20:01,553 FATAL L? ?]: An unrecoverable error occured during an interaction with an SMT solver: de.uni_freiburg.informatik.ultimate.logic.SMTLIBException: External (MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5c76b4a-cc84-48e5-8fd3-d4665334f85f/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1) with exit command (exit)) Received EOF on stdin. stderr output: (error "out of memory") at de.uni_freiburg.informatik.ultimate.smtsolver.external.Executor.parse(Executor.java:241) at de.uni_freiburg.informatik.ultimate.smtsolver.external.Executor.parseCheckSatResult(Executor.java:260) at de.uni_freiburg.informatik.ultimate.smtsolver.external.Scriptor.checkSat(Scriptor.java:155) at de.uni_freiburg.informatik.ultimate.logic.WrapperScript.checkSat(WrapperScript.java:163) at de.uni_freiburg.informatik.ultimate.logic.WrapperScript.checkSat(WrapperScript.java:163) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.ManagedScript.checkSat(ManagedScript.java:139) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.MonolithicImplicationChecker.checkImplication(MonolithicImplicationChecker.java:85) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier$PredicateComparison.compare(PredicateUnifier.java:899) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier$PredicateComparison.(PredicateUnifier.java:773) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate(PredicateUnifier.java:345) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicateForConjunction(PredicateUnifier.java:388) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicateForConjunction(PredicateUnifier.java:229) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.interpolantautomata.transitionappender.DeterministicInterpolantAutomaton.getOrConstructPredicate(DeterministicInterpolantAutomaton.java:282) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.interpolantautomata.transitionappender.DeterministicInterpolantAutomaton.constructSuccessorsAndTransitions(DeterministicInterpolantAutomaton.java:304) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.interpolantautomata.transitionappender.BasicAbstractInterpolantAutomaton.computeSuccs(BasicAbstractInterpolantAutomaton.java:79) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.interpolantautomata.transitionappender.BasicAbstractInterpolantAutomaton.computeSuccs(BasicAbstractInterpolantAutomaton.java:1) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.interpolantautomata.transitionappender.AbstractInterpolantAutomaton.internalSuccessors(AbstractInterpolantAutomaton.java:233) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.interpolantautomata.transitionappender.AbstractInterpolantAutomaton.internalSuccessors(AbstractInterpolantAutomaton.java:1) at de.uni_freiburg.informatik.ultimate.automata.nestedword.operations.TotalizeNwa.internalSuccessors(TotalizeNwa.java:213) at de.uni_freiburg.informatik.ultimate.automata.nestedword.operations.ComplementDeterministicNwa.internalSuccessors(ComplementDeterministicNwa.java:121) at de.uni_freiburg.informatik.ultimate.automata.nestedword.operations.ProductNwa.internalSuccessors(ProductNwa.java:216) at de.uni_freiburg.informatik.ultimate.automata.nestedword.operations.ProductNwa.internalSuccessors(ProductNwa.java:208) at de.uni_freiburg.informatik.ultimate.automata.nestedword.reachablestates.NestedWordAutomatonReachableStates$ReachableStatesComputation.addInternalsAndSuccessors(NestedWordAutomatonReachableStates.java:1058) at de.uni_freiburg.informatik.ultimate.automata.nestedword.reachablestates.NestedWordAutomatonReachableStates$ReachableStatesComputation.(NestedWordAutomatonReachableStates.java:960) at de.uni_freiburg.informatik.ultimate.automata.nestedword.reachablestates.NestedWordAutomatonReachableStates.(NestedWordAutomatonReachableStates.java:182) at de.uni_freiburg.informatik.ultimate.automata.nestedword.operations.Difference.computeDifference(Difference.java:137) at de.uni_freiburg.informatik.ultimate.automata.nestedword.operations.Difference.(Difference.java:90) at de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiCegarLoop.refineFinite(BuchiCegarLoop.java:950) at de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiCegarLoop.iterate(BuchiCegarLoop.java:530) at de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver.doTerminationAnalysis(BuchiAutomizerObserver.java:142) at de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver.finish(BuchiAutomizerObserver.java:397) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:168) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:320) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) Caused by: de.uni_freiburg.informatik.ultimate.logic.SMTLIBException: EOF at de.uni_freiburg.informatik.ultimate.smtsolver.external.Parser$Action$.CUP$do_action(Parser.java:1465) at de.uni_freiburg.informatik.ultimate.smtsolver.external.Parser.do_action(Parser.java:658) at com.github.jhoenicke.javacup.runtime.LRParser.parse(LRParser.java:383) at de.uni_freiburg.informatik.ultimate.smtsolver.external.Executor.parse(Executor.java:237) ... 40 more [2021-12-06 22:20:01,555 INFO L158 Benchmark]: Toolchain (without parser) took 375381.12ms. Allocated memory was 109.1MB in the beginning and 132.1MB in the end (delta: 23.1MB). Free memory was 71.2MB in the beginning and 88.1MB in the end (delta: -16.9MB). Peak memory consumption was 8.5MB. Max. memory is 16.1GB. [2021-12-06 22:20:01,555 INFO L158 Benchmark]: CDTParser took 0.14ms. Allocated memory is still 109.1MB. Free memory is still 88.5MB. There was no memory consumed. Max. memory is 16.1GB. [2021-12-06 22:20:01,555 INFO L158 Benchmark]: CACSL2BoogieTranslator took 260.66ms. Allocated memory is still 109.1MB. Free memory was 71.0MB in the beginning and 56.1MB in the end (delta: 14.9MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2021-12-06 22:20:01,555 INFO L158 Benchmark]: Boogie Procedure Inliner took 54.23ms. Allocated memory is still 109.1MB. Free memory was 56.1MB in the beginning and 86.9MB in the end (delta: -30.8MB). Peak memory consumption was 4.8MB. Max. memory is 16.1GB. [2021-12-06 22:20:01,555 INFO L158 Benchmark]: Boogie Preprocessor took 22.12ms. Allocated memory is still 109.1MB. Free memory was 86.9MB in the beginning and 85.5MB in the end (delta: 1.4MB). There was no memory consumed. Max. memory is 16.1GB. [2021-12-06 22:20:01,556 INFO L158 Benchmark]: RCFGBuilder took 202.17ms. Allocated memory is still 109.1MB. Free memory was 85.5MB in the beginning and 74.5MB in the end (delta: 11.0MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2021-12-06 22:20:01,556 INFO L158 Benchmark]: BuchiAutomizer took 374838.03ms. Allocated memory was 109.1MB in the beginning and 132.1MB in the end (delta: 23.1MB). Free memory was 74.5MB in the beginning and 88.1MB in the end (delta: -13.6MB). Peak memory consumption was 12.1MB. Max. memory is 16.1GB. [2021-12-06 22:20:01,557 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.14ms. Allocated memory is still 109.1MB. Free memory is still 88.5MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 260.66ms. Allocated memory is still 109.1MB. Free memory was 71.0MB in the beginning and 56.1MB in the end (delta: 14.9MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 54.23ms. Allocated memory is still 109.1MB. Free memory was 56.1MB in the beginning and 86.9MB in the end (delta: -30.8MB). Peak memory consumption was 4.8MB. Max. memory is 16.1GB. * Boogie Preprocessor took 22.12ms. Allocated memory is still 109.1MB. Free memory was 86.9MB in the beginning and 85.5MB in the end (delta: 1.4MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 202.17ms. Allocated memory is still 109.1MB. Free memory was 85.5MB in the beginning and 74.5MB in the end (delta: 11.0MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * BuchiAutomizer took 374838.03ms. Allocated memory was 109.1MB in the beginning and 132.1MB in the end (delta: 23.1MB). Free memory was 74.5MB in the beginning and 88.1MB in the end (delta: -13.6MB). Peak memory consumption was 12.1MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer: - ExceptionOrErrorResult: SMTLIBException: External (MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5c76b4a-cc84-48e5-8fd3-d4665334f85f/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1) with exit command (exit)) Received EOF on stdin. stderr output: (error "out of memory") de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer: SMTLIBException: External (MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5c76b4a-cc84-48e5-8fd3-d4665334f85f/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1) with exit command (exit)) Received EOF on stdin. stderr output: (error "out of memory") : de.uni_freiburg.informatik.ultimate.smtsolver.external.Executor.parse(Executor.java:241) RESULT: Ultimate could not prove your program: Toolchain returned no result. [2021-12-06 22:20:01,581 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5c76b4a-cc84-48e5-8fd3-d4665334f85f/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (40)] Ended with exit code 0 [2021-12-06 22:20:01,817 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5c76b4a-cc84-48e5-8fd3-d4665334f85f/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (39)] Forceful destruction successful, exit code 0 [2021-12-06 22:20:01,987 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5c76b4a-cc84-48e5-8fd3-d4665334f85f/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (38)] Ended with exit code 0 [2021-12-06 22:20:02,213 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5c76b4a-cc84-48e5-8fd3-d4665334f85f/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (37)] Forceful destruction successful, exit code 0 [2021-12-06 22:20:02,413 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5c76b4a-cc84-48e5-8fd3-d4665334f85f/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (36)] Ended with exit code 0 [2021-12-06 22:20:02,616 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5c76b4a-cc84-48e5-8fd3-d4665334f85f/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (35)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis No suitable file found in config dir /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5c76b4a-cc84-48e5-8fd3-d4665334f85f/bin/uautomizer-DrprNOufMa/config using search string *Termination*64bit*_Bitvector*.epf No suitable settings file found using Termination*64bit*_Bitvector ERROR: UNSUPPORTED PROPERTY Writing output log to file Ultimate.log Result: ERROR: ExceptionOrErrorResult: SMTLIBException: External (MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5c76b4a-cc84-48e5-8fd3-d4665334f85f/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1) with exit command (exit)) Received EOF on stdin. stderr output: (error "out of memory")