./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/termination-memory-alloca/openbsd_cstrpbrk-alloca-1.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 9ad7fb26 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a86a182-eac0-46df-a588-cd1528836e48/bin/uautomizer-tBqnrhUYjU/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a86a182-eac0-46df-a588-cd1528836e48/bin/uautomizer-tBqnrhUYjU/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a86a182-eac0-46df-a588-cd1528836e48/bin/uautomizer-tBqnrhUYjU/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a86a182-eac0-46df-a588-cd1528836e48/bin/uautomizer-tBqnrhUYjU/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/termination-memory-alloca/openbsd_cstrpbrk-alloca-1.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a86a182-eac0-46df-a588-cd1528836e48/bin/uautomizer-tBqnrhUYjU/config/svcomp-Termination-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a86a182-eac0-46df-a588-cd1528836e48/bin/uautomizer-tBqnrhUYjU --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(F end) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash dab3cfcd7f834fcfbdfecec143b1f55491432e66d7189ec50c725339851d6e17 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-9ad7fb2 [2021-11-02 22:09:23,310 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-02 22:09:23,313 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-02 22:09:23,361 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-02 22:09:23,363 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-02 22:09:23,366 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-02 22:09:23,371 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-02 22:09:23,377 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-02 22:09:23,382 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-02 22:09:23,384 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-02 22:09:23,386 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-02 22:09:23,390 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-02 22:09:23,391 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-02 22:09:23,401 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-02 22:09:23,404 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-02 22:09:23,408 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-02 22:09:23,410 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-02 22:09:23,414 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-02 22:09:23,421 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-02 22:09:23,430 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-02 22:09:23,433 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-02 22:09:23,441 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-02 22:09:23,443 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-02 22:09:23,445 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-02 22:09:23,455 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-02 22:09:23,456 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-02 22:09:23,456 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-02 22:09:23,459 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-02 22:09:23,461 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-02 22:09:23,463 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-02 22:09:23,463 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-02 22:09:23,465 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-02 22:09:23,467 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-02 22:09:23,469 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-02 22:09:23,472 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-02 22:09:23,472 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-02 22:09:23,473 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-02 22:09:23,474 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-02 22:09:23,474 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-02 22:09:23,475 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-02 22:09:23,476 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-02 22:09:23,477 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a86a182-eac0-46df-a588-cd1528836e48/bin/uautomizer-tBqnrhUYjU/config/svcomp-Termination-64bit-Automizer_Default.epf [2021-11-02 22:09:23,546 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-02 22:09:23,553 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-02 22:09:23,554 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-02 22:09:23,555 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-02 22:09:23,557 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-02 22:09:23,557 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-02 22:09:23,558 INFO L138 SettingsManager]: * Use SBE=true [2021-11-02 22:09:23,558 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2021-11-02 22:09:23,558 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2021-11-02 22:09:23,559 INFO L138 SettingsManager]: * Use old map elimination=false [2021-11-02 22:09:23,560 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2021-11-02 22:09:23,561 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2021-11-02 22:09:23,561 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2021-11-02 22:09:23,562 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-02 22:09:23,562 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-11-02 22:09:23,562 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-02 22:09:23,562 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-02 22:09:23,563 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2021-11-02 22:09:23,563 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2021-11-02 22:09:23,563 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2021-11-02 22:09:23,564 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-02 22:09:23,564 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2021-11-02 22:09:23,564 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-02 22:09:23,564 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2021-11-02 22:09:23,565 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-02 22:09:23,565 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-02 22:09:23,568 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-02 22:09:23,568 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-11-02 22:09:23,569 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-02 22:09:23,570 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2021-11-02 22:09:23,571 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_5a86a182-eac0-46df-a588-cd1528836e48/bin/uautomizer-tBqnrhUYjU/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a86a182-eac0-46df-a588-cd1528836e48/bin/uautomizer-tBqnrhUYjU Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> dab3cfcd7f834fcfbdfecec143b1f55491432e66d7189ec50c725339851d6e17 [2021-11-02 22:09:23,929 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-02 22:09:23,966 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-02 22:09:23,969 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-02 22:09:23,971 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-02 22:09:23,972 INFO L275 PluginConnector]: CDTParser initialized [2021-11-02 22:09:23,974 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a86a182-eac0-46df-a588-cd1528836e48/bin/uautomizer-tBqnrhUYjU/../../sv-benchmarks/c/termination-memory-alloca/openbsd_cstrpbrk-alloca-1.i [2021-11-02 22:09:24,100 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a86a182-eac0-46df-a588-cd1528836e48/bin/uautomizer-tBqnrhUYjU/data/352448a8f/0c20fbb367d9440f95d31208e52379e2/FLAG807161cbe [2021-11-02 22:09:24,712 INFO L306 CDTParser]: Found 1 translation units. [2021-11-02 22:09:24,713 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a86a182-eac0-46df-a588-cd1528836e48/sv-benchmarks/c/termination-memory-alloca/openbsd_cstrpbrk-alloca-1.i [2021-11-02 22:09:24,735 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a86a182-eac0-46df-a588-cd1528836e48/bin/uautomizer-tBqnrhUYjU/data/352448a8f/0c20fbb367d9440f95d31208e52379e2/FLAG807161cbe [2021-11-02 22:09:24,978 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a86a182-eac0-46df-a588-cd1528836e48/bin/uautomizer-tBqnrhUYjU/data/352448a8f/0c20fbb367d9440f95d31208e52379e2 [2021-11-02 22:09:24,985 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-02 22:09:24,994 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-02 22:09:24,999 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-02 22:09:25,000 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-02 22:09:25,005 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-02 22:09:25,006 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.11 10:09:24" (1/1) ... [2021-11-02 22:09:25,009 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2ced2a6f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 10:09:25, skipping insertion in model container [2021-11-02 22:09:25,010 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.11 10:09:24" (1/1) ... [2021-11-02 22:09:25,021 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-02 22:09:25,075 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-02 22:09:25,444 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-02 22:09:25,462 INFO L203 MainTranslator]: Completed pre-run [2021-11-02 22:09:25,549 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-02 22:09:25,588 INFO L208 MainTranslator]: Completed translation [2021-11-02 22:09:25,588 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 10:09:25 WrapperNode [2021-11-02 22:09:25,588 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-02 22:09:25,590 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-02 22:09:25,590 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-02 22:09:25,590 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-02 22:09:25,604 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 10:09:25" (1/1) ... [2021-11-02 22:09:25,635 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 10:09:25" (1/1) ... [2021-11-02 22:09:25,662 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-02 22:09:25,663 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-02 22:09:25,663 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-02 22:09:25,663 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-02 22:09:25,672 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 10:09:25" (1/1) ... [2021-11-02 22:09:25,673 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 10:09:25" (1/1) ... [2021-11-02 22:09:25,676 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 10:09:25" (1/1) ... [2021-11-02 22:09:25,677 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 10:09:25" (1/1) ... [2021-11-02 22:09:25,684 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 10:09:25" (1/1) ... [2021-11-02 22:09:25,700 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 10:09:25" (1/1) ... [2021-11-02 22:09:25,703 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 10:09:25" (1/1) ... [2021-11-02 22:09:25,710 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-02 22:09:25,711 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-02 22:09:25,712 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-02 22:09:25,712 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-02 22:09:25,723 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 10:09:25" (1/1) ... [2021-11-02 22:09:25,733 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-02 22:09:25,746 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a86a182-eac0-46df-a588-cd1528836e48/bin/uautomizer-tBqnrhUYjU/z3 [2021-11-02 22:09:25,778 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a86a182-eac0-46df-a588-cd1528836e48/bin/uautomizer-tBqnrhUYjU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-02 22:09:25,800 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a86a182-eac0-46df-a588-cd1528836e48/bin/uautomizer-tBqnrhUYjU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2021-11-02 22:09:25,834 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-11-02 22:09:25,835 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-11-02 22:09:25,835 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-02 22:09:25,836 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-02 22:09:25,836 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-02 22:09:25,836 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-02 22:09:26,096 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-02 22:09:26,096 INFO L299 CfgBuilder]: Removed 8 assume(true) statements. [2021-11-02 22:09:26,098 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.11 10:09:26 BoogieIcfgContainer [2021-11-02 22:09:26,099 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-02 22:09:26,100 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2021-11-02 22:09:26,100 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2021-11-02 22:09:26,104 INFO L275 PluginConnector]: BuchiAutomizer initialized [2021-11-02 22:09:26,105 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-11-02 22:09:26,106 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 02.11 10:09:24" (1/3) ... [2021-11-02 22:09:26,107 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@56cb9862 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 02.11 10:09:26, skipping insertion in model container [2021-11-02 22:09:26,108 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-11-02 22:09:26,108 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 10:09:25" (2/3) ... [2021-11-02 22:09:26,108 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@56cb9862 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 02.11 10:09:26, skipping insertion in model container [2021-11-02 22:09:26,109 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-11-02 22:09:26,109 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.11 10:09:26" (3/3) ... [2021-11-02 22:09:26,110 INFO L389 chiAutomizerObserver]: Analyzing ICFG openbsd_cstrpbrk-alloca-1.i [2021-11-02 22:09:26,168 INFO L359 BuchiCegarLoop]: Interprodecural is true [2021-11-02 22:09:26,168 INFO L360 BuchiCegarLoop]: Hoare is false [2021-11-02 22:09:26,169 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2021-11-02 22:09:26,169 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2021-11-02 22:09:26,169 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-11-02 22:09:26,169 INFO L364 BuchiCegarLoop]: Difference is false [2021-11-02 22:09:26,170 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-11-02 22:09:26,170 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2021-11-02 22:09:26,189 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 15 states, 14 states have (on average 1.5) internal successors, (21), 14 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 22:09:26,214 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 5 [2021-11-02 22:09:26,214 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-11-02 22:09:26,214 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-11-02 22:09:26,222 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1] [2021-11-02 22:09:26,222 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2021-11-02 22:09:26,223 INFO L425 BuchiCegarLoop]: ======== Iteration 1============ [2021-11-02 22:09:26,223 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 15 states, 14 states have (on average 1.5) internal successors, (21), 14 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 22:09:26,226 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 5 [2021-11-02 22:09:26,226 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-11-02 22:09:26,227 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-11-02 22:09:26,227 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1] [2021-11-02 22:09:26,228 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2021-11-02 22:09:26,237 INFO L791 eck$LassoCheckResult]: Stem: 4#ULTIMATE.startENTRYtrue #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier; 8#L-1true havoc main_#res;havoc main_#t~nondet6, main_#t~nondet7, main_#t~malloc8.base, main_#t~malloc8.offset, main_#t~malloc9.base, main_#t~malloc9.offset, main_#t~ret10.base, main_#t~ret10.offset, main_~length1~0, main_~length2~0, main_~nondetString1~0.base, main_~nondetString1~0.offset, main_~nondetString2~0.base, main_~nondetString2~0.offset;main_~length1~0 := main_#t~nondet6;havoc main_#t~nondet6;main_~length2~0 := main_#t~nondet7;havoc main_#t~nondet7; 12#L562true assume !(main_~length1~0 < 1); 15#L562-2true assume !(main_~length2~0 < 1); 13#L565-1true call main_#t~malloc8.base, main_#t~malloc8.offset := #Ultimate.allocOnStack(main_~length1~0);main_~nondetString1~0.base, main_~nondetString1~0.offset := main_#t~malloc8.base, main_#t~malloc8.offset;call main_#t~malloc9.base, main_#t~malloc9.offset := #Ultimate.allocOnStack(main_~length2~0);main_~nondetString2~0.base, main_~nondetString2~0.offset := main_#t~malloc9.base, main_#t~malloc9.offset;call write~int(0, main_~nondetString1~0.base, main_~nondetString1~0.offset + (main_~length1~0 - 1), 1);call write~int(0, main_~nondetString2~0.base, main_~nondetString2~0.offset + (main_~length2~0 - 1), 1);cstrpbrk_#in~s1.base, cstrpbrk_#in~s1.offset, cstrpbrk_#in~s2.base, cstrpbrk_#in~s2.offset := main_~nondetString1~0.base, main_~nondetString1~0.offset, main_~nondetString2~0.base, main_~nondetString2~0.offset;havoc cstrpbrk_#res.base, cstrpbrk_#res.offset;havoc cstrpbrk_#t~post4.base, cstrpbrk_#t~post4.offset, cstrpbrk_#t~mem5, cstrpbrk_#t~post2.base, cstrpbrk_#t~post2.offset, cstrpbrk_#t~mem3, cstrpbrk_~s1.base, cstrpbrk_~s1.offset, cstrpbrk_~s2.base, cstrpbrk_~s2.offset, cstrpbrk_~scanp~0.base, cstrpbrk_~scanp~0.offset, cstrpbrk_~c~0, cstrpbrk_~sc~0;cstrpbrk_~s1.base, cstrpbrk_~s1.offset := cstrpbrk_#in~s1.base, cstrpbrk_#in~s1.offset;cstrpbrk_~s2.base, cstrpbrk_~s2.offset := cstrpbrk_#in~s2.base, cstrpbrk_#in~s2.offset;havoc cstrpbrk_~scanp~0.base, cstrpbrk_~scanp~0.offset;havoc cstrpbrk_~c~0;havoc cstrpbrk_~sc~0; 14#L553-4true [2021-11-02 22:09:26,237 INFO L793 eck$LassoCheckResult]: Loop: 14#L553-4true cstrpbrk_#t~post2.base, cstrpbrk_#t~post2.offset := cstrpbrk_~s1.base, cstrpbrk_~s1.offset;cstrpbrk_~s1.base, cstrpbrk_~s1.offset := cstrpbrk_#t~post2.base, 1 + cstrpbrk_#t~post2.offset;call cstrpbrk_#t~mem3 := read~int(cstrpbrk_#t~post2.base, cstrpbrk_#t~post2.offset, 1);cstrpbrk_~c~0 := cstrpbrk_#t~mem3; 10#L552-1true assume !!(0 != cstrpbrk_~c~0);havoc cstrpbrk_#t~post2.base, cstrpbrk_#t~post2.offset;havoc cstrpbrk_#t~mem3;cstrpbrk_~scanp~0.base, cstrpbrk_~scanp~0.offset := cstrpbrk_~s2.base, cstrpbrk_~s2.offset; 7#L553-3true assume !true; 14#L553-4true [2021-11-02 22:09:26,244 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-02 22:09:26,245 INFO L85 PathProgramCache]: Analyzing trace with hash 28695878, now seen corresponding path program 1 times [2021-11-02 22:09:26,256 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-02 22:09:26,257 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1107704373] [2021-11-02 22:09:26,257 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-02 22:09:26,259 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-02 22:09:26,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-02 22:09:26,487 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-02 22:09:26,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-02 22:09:26,565 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-11-02 22:09:26,569 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-02 22:09:26,569 INFO L85 PathProgramCache]: Analyzing trace with hash 49828, now seen corresponding path program 1 times [2021-11-02 22:09:26,570 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-02 22:09:26,570 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [77305398] [2021-11-02 22:09:26,570 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-02 22:09:26,571 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-02 22:09:26,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-02 22:09:26,641 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-02 22:09:26,642 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-02 22:09:26,643 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [77305398] [2021-11-02 22:09:26,644 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [77305398] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-02 22:09:26,645 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-02 22:09:26,645 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2021-11-02 22:09:26,646 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [159650475] [2021-11-02 22:09:26,656 INFO L808 eck$LassoCheckResult]: loop already infeasible [2021-11-02 22:09:26,659 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-02 22:09:26,679 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-11-02 22:09:26,681 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-02 22:09:26,684 INFO L87 Difference]: Start difference. First operand has 15 states, 14 states have (on average 1.5) internal successors, (21), 14 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 2 states, 1 states have (on average 3.0) internal successors, (3), 2 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 22:09:26,693 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-02 22:09:26,693 INFO L93 Difference]: Finished difference Result 15 states and 19 transitions. [2021-11-02 22:09:26,693 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-02 22:09:26,696 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 15 states and 19 transitions. [2021-11-02 22:09:26,701 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 5 [2021-11-02 22:09:26,706 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 15 states to 10 states and 13 transitions. [2021-11-02 22:09:26,707 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 10 [2021-11-02 22:09:26,708 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 10 [2021-11-02 22:09:26,708 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 13 transitions. [2021-11-02 22:09:26,709 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-11-02 22:09:26,709 INFO L681 BuchiCegarLoop]: Abstraction has 10 states and 13 transitions. [2021-11-02 22:09:26,730 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10 states and 13 transitions. [2021-11-02 22:09:26,741 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10 to 10. [2021-11-02 22:09:26,742 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10 states, 10 states have (on average 1.3) 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) [2021-11-02 22:09:26,743 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 13 transitions. [2021-11-02 22:09:26,744 INFO L704 BuchiCegarLoop]: Abstraction has 10 states and 13 transitions. [2021-11-02 22:09:26,745 INFO L587 BuchiCegarLoop]: Abstraction has 10 states and 13 transitions. [2021-11-02 22:09:26,745 INFO L425 BuchiCegarLoop]: ======== Iteration 2============ [2021-11-02 22:09:26,745 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 10 states and 13 transitions. [2021-11-02 22:09:26,747 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 5 [2021-11-02 22:09:26,747 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-11-02 22:09:26,748 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-11-02 22:09:26,748 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1] [2021-11-02 22:09:26,749 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2021-11-02 22:09:26,749 INFO L791 eck$LassoCheckResult]: Stem: 38#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier; 39#L-1 havoc main_#res;havoc main_#t~nondet6, main_#t~nondet7, main_#t~malloc8.base, main_#t~malloc8.offset, main_#t~malloc9.base, main_#t~malloc9.offset, main_#t~ret10.base, main_#t~ret10.offset, main_~length1~0, main_~length2~0, main_~nondetString1~0.base, main_~nondetString1~0.offset, main_~nondetString2~0.base, main_~nondetString2~0.offset;main_~length1~0 := main_#t~nondet6;havoc main_#t~nondet6;main_~length2~0 := main_#t~nondet7;havoc main_#t~nondet7; 42#L562 assume !(main_~length1~0 < 1); 43#L562-2 assume !(main_~length2~0 < 1); 46#L565-1 call main_#t~malloc8.base, main_#t~malloc8.offset := #Ultimate.allocOnStack(main_~length1~0);main_~nondetString1~0.base, main_~nondetString1~0.offset := main_#t~malloc8.base, main_#t~malloc8.offset;call main_#t~malloc9.base, main_#t~malloc9.offset := #Ultimate.allocOnStack(main_~length2~0);main_~nondetString2~0.base, main_~nondetString2~0.offset := main_#t~malloc9.base, main_#t~malloc9.offset;call write~int(0, main_~nondetString1~0.base, main_~nondetString1~0.offset + (main_~length1~0 - 1), 1);call write~int(0, main_~nondetString2~0.base, main_~nondetString2~0.offset + (main_~length2~0 - 1), 1);cstrpbrk_#in~s1.base, cstrpbrk_#in~s1.offset, cstrpbrk_#in~s2.base, cstrpbrk_#in~s2.offset := main_~nondetString1~0.base, main_~nondetString1~0.offset, main_~nondetString2~0.base, main_~nondetString2~0.offset;havoc cstrpbrk_#res.base, cstrpbrk_#res.offset;havoc cstrpbrk_#t~post4.base, cstrpbrk_#t~post4.offset, cstrpbrk_#t~mem5, cstrpbrk_#t~post2.base, cstrpbrk_#t~post2.offset, cstrpbrk_#t~mem3, cstrpbrk_~s1.base, cstrpbrk_~s1.offset, cstrpbrk_~s2.base, cstrpbrk_~s2.offset, cstrpbrk_~scanp~0.base, cstrpbrk_~scanp~0.offset, cstrpbrk_~c~0, cstrpbrk_~sc~0;cstrpbrk_~s1.base, cstrpbrk_~s1.offset := cstrpbrk_#in~s1.base, cstrpbrk_#in~s1.offset;cstrpbrk_~s2.base, cstrpbrk_~s2.offset := cstrpbrk_#in~s2.base, cstrpbrk_#in~s2.offset;havoc cstrpbrk_~scanp~0.base, cstrpbrk_~scanp~0.offset;havoc cstrpbrk_~c~0;havoc cstrpbrk_~sc~0; 44#L553-4 [2021-11-02 22:09:26,750 INFO L793 eck$LassoCheckResult]: Loop: 44#L553-4 cstrpbrk_#t~post2.base, cstrpbrk_#t~post2.offset := cstrpbrk_~s1.base, cstrpbrk_~s1.offset;cstrpbrk_~s1.base, cstrpbrk_~s1.offset := cstrpbrk_#t~post2.base, 1 + cstrpbrk_#t~post2.offset;call cstrpbrk_#t~mem3 := read~int(cstrpbrk_#t~post2.base, cstrpbrk_#t~post2.offset, 1);cstrpbrk_~c~0 := cstrpbrk_#t~mem3; 47#L552-1 assume !!(0 != cstrpbrk_~c~0);havoc cstrpbrk_#t~post2.base, cstrpbrk_#t~post2.offset;havoc cstrpbrk_#t~mem3;cstrpbrk_~scanp~0.base, cstrpbrk_~scanp~0.offset := cstrpbrk_~s2.base, cstrpbrk_~s2.offset; 40#L553-3 cstrpbrk_#t~post4.base, cstrpbrk_#t~post4.offset := cstrpbrk_~scanp~0.base, cstrpbrk_~scanp~0.offset;cstrpbrk_~scanp~0.base, cstrpbrk_~scanp~0.offset := cstrpbrk_#t~post4.base, 1 + cstrpbrk_#t~post4.offset;call cstrpbrk_#t~mem5 := read~int(cstrpbrk_#t~post4.base, cstrpbrk_#t~post4.offset, 1);cstrpbrk_~sc~0 := cstrpbrk_#t~mem5; 41#L553-1 assume !(0 != cstrpbrk_~sc~0);havoc cstrpbrk_#t~post4.base, cstrpbrk_#t~post4.offset;havoc cstrpbrk_#t~mem5; 44#L553-4 [2021-11-02 22:09:26,752 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-02 22:09:26,752 INFO L85 PathProgramCache]: Analyzing trace with hash 28695878, now seen corresponding path program 2 times [2021-11-02 22:09:26,752 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-02 22:09:26,753 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1468701269] [2021-11-02 22:09:26,753 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-02 22:09:26,753 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-02 22:09:26,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-02 22:09:26,813 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-02 22:09:26,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-02 22:09:26,845 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-11-02 22:09:26,846 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-02 22:09:26,846 INFO L85 PathProgramCache]: Analyzing trace with hash 1544297, now seen corresponding path program 1 times [2021-11-02 22:09:26,847 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-02 22:09:26,847 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1711954977] [2021-11-02 22:09:26,847 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-02 22:09:26,848 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-02 22:09:26,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-02 22:09:26,882 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-02 22:09:26,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-02 22:09:26,920 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-11-02 22:09:26,921 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-02 22:09:26,924 INFO L85 PathProgramCache]: Analyzing trace with hash 1298350894, now seen corresponding path program 1 times [2021-11-02 22:09:26,927 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-02 22:09:26,928 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1319619928] [2021-11-02 22:09:26,928 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-02 22:09:26,928 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-02 22:09:26,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-02 22:09:26,964 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-02 22:09:27,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-02 22:09:27,043 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-11-02 22:09:28,071 INFO L210 LassoAnalysis]: Preferences: [2021-11-02 22:09:28,072 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-11-02 22:09:28,072 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-11-02 22:09:28,072 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-11-02 22:09:28,073 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2021-11-02 22:09:28,073 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-02 22:09:28,073 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-11-02 22:09:28,073 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-11-02 22:09:28,073 INFO L133 ssoRankerPreferences]: Filename of dumped script: openbsd_cstrpbrk-alloca-1.i_Iteration2_Lasso [2021-11-02 22:09:28,074 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-11-02 22:09:28,074 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-11-02 22:09:28,102 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-02 22:09:28,109 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-02 22:09:28,112 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-02 22:09:28,115 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-02 22:09:28,118 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-02 22:09:28,121 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-02 22:09:28,125 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-02 22:09:28,128 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-02 22:09:28,131 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-02 22:09:28,135 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-02 22:09:28,138 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-02 22:09:28,142 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-02 22:09:28,145 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-02 22:09:28,697 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-02 22:09:28,706 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-02 22:09:28,709 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-02 22:09:28,712 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-02 22:09:28,715 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-02 22:09:28,718 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-02 22:09:29,248 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-11-02 22:09:29,255 INFO L490 LassoAnalysis]: Using template 'affine'. [2021-11-02 22:09:29,257 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-02 22:09:29,258 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a86a182-eac0-46df-a588-cd1528836e48/bin/uautomizer-tBqnrhUYjU/z3 [2021-11-02 22:09:29,264 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a86a182-eac0-46df-a588-cd1528836e48/bin/uautomizer-tBqnrhUYjU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-02 22:09:29,279 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-11-02 22:09:29,291 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-02 22:09:29,291 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-11-02 22:09:29,292 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-02 22:09:29,292 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-02 22:09:29,292 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-02 22:09:29,295 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-11-02 22:09:29,295 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-11-02 22:09:29,298 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a86a182-eac0-46df-a588-cd1528836e48/bin/uautomizer-tBqnrhUYjU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Waiting until timeout for monitored process [2021-11-02 22:09:29,308 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-11-02 22:09:29,338 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a86a182-eac0-46df-a588-cd1528836e48/bin/uautomizer-tBqnrhUYjU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Forceful destruction successful, exit code 0 [2021-11-02 22:09:29,339 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-02 22:09:29,339 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a86a182-eac0-46df-a588-cd1528836e48/bin/uautomizer-tBqnrhUYjU/z3 [2021-11-02 22:09:29,340 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a86a182-eac0-46df-a588-cd1528836e48/bin/uautomizer-tBqnrhUYjU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-02 22:09:29,342 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a86a182-eac0-46df-a588-cd1528836e48/bin/uautomizer-tBqnrhUYjU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Waiting until timeout for monitored process [2021-11-02 22:09:29,343 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-11-02 22:09:29,355 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-02 22:09:29,355 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-11-02 22:09:29,356 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-02 22:09:29,356 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-02 22:09:29,356 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-02 22:09:29,357 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-11-02 22:09:29,357 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-11-02 22:09:29,387 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-11-02 22:09:29,428 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a86a182-eac0-46df-a588-cd1528836e48/bin/uautomizer-tBqnrhUYjU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Forceful destruction successful, exit code 0 [2021-11-02 22:09:29,429 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-02 22:09:29,429 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a86a182-eac0-46df-a588-cd1528836e48/bin/uautomizer-tBqnrhUYjU/z3 [2021-11-02 22:09:29,430 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a86a182-eac0-46df-a588-cd1528836e48/bin/uautomizer-tBqnrhUYjU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-02 22:09:29,442 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a86a182-eac0-46df-a588-cd1528836e48/bin/uautomizer-tBqnrhUYjU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Waiting until timeout for monitored process [2021-11-02 22:09:29,443 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-11-02 22:09:29,455 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-02 22:09:29,455 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-11-02 22:09:29,456 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-02 22:09:29,456 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-02 22:09:29,456 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-02 22:09:29,457 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-11-02 22:09:29,458 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-11-02 22:09:29,471 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-11-02 22:09:29,511 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a86a182-eac0-46df-a588-cd1528836e48/bin/uautomizer-tBqnrhUYjU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Forceful destruction successful, exit code 0 [2021-11-02 22:09:29,512 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-02 22:09:29,512 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a86a182-eac0-46df-a588-cd1528836e48/bin/uautomizer-tBqnrhUYjU/z3 [2021-11-02 22:09:29,513 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a86a182-eac0-46df-a588-cd1528836e48/bin/uautomizer-tBqnrhUYjU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-02 22:09:29,514 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a86a182-eac0-46df-a588-cd1528836e48/bin/uautomizer-tBqnrhUYjU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Waiting until timeout for monitored process [2021-11-02 22:09:29,519 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-11-02 22:09:29,528 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-02 22:09:29,528 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-11-02 22:09:29,529 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-02 22:09:29,529 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-02 22:09:29,529 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-02 22:09:29,530 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-11-02 22:09:29,530 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-11-02 22:09:29,561 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-11-02 22:09:29,586 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a86a182-eac0-46df-a588-cd1528836e48/bin/uautomizer-tBqnrhUYjU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Ended with exit code 0 [2021-11-02 22:09:29,586 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-02 22:09:29,586 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a86a182-eac0-46df-a588-cd1528836e48/bin/uautomizer-tBqnrhUYjU/z3 [2021-11-02 22:09:29,587 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a86a182-eac0-46df-a588-cd1528836e48/bin/uautomizer-tBqnrhUYjU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-02 22:09:29,592 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a86a182-eac0-46df-a588-cd1528836e48/bin/uautomizer-tBqnrhUYjU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Waiting until timeout for monitored process [2021-11-02 22:09:29,592 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-11-02 22:09:29,601 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-02 22:09:29,601 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-11-02 22:09:29,601 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-02 22:09:29,602 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-02 22:09:29,602 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-02 22:09:29,602 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-11-02 22:09:29,602 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-11-02 22:09:29,607 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-11-02 22:09:29,633 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a86a182-eac0-46df-a588-cd1528836e48/bin/uautomizer-tBqnrhUYjU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Forceful destruction successful, exit code 0 [2021-11-02 22:09:29,633 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-02 22:09:29,633 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a86a182-eac0-46df-a588-cd1528836e48/bin/uautomizer-tBqnrhUYjU/z3 [2021-11-02 22:09:29,634 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a86a182-eac0-46df-a588-cd1528836e48/bin/uautomizer-tBqnrhUYjU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-02 22:09:29,635 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a86a182-eac0-46df-a588-cd1528836e48/bin/uautomizer-tBqnrhUYjU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Waiting until timeout for monitored process [2021-11-02 22:09:29,636 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-11-02 22:09:29,645 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-02 22:09:29,645 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-02 22:09:29,645 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-02 22:09:29,646 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-02 22:09:29,650 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-11-02 22:09:29,651 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-11-02 22:09:29,671 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-11-02 22:09:29,717 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a86a182-eac0-46df-a588-cd1528836e48/bin/uautomizer-tBqnrhUYjU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Forceful destruction successful, exit code 0 [2021-11-02 22:09:29,718 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-02 22:09:29,718 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a86a182-eac0-46df-a588-cd1528836e48/bin/uautomizer-tBqnrhUYjU/z3 [2021-11-02 22:09:29,724 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a86a182-eac0-46df-a588-cd1528836e48/bin/uautomizer-tBqnrhUYjU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-02 22:09:29,733 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-11-02 22:09:29,744 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-02 22:09:29,744 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-11-02 22:09:29,745 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-02 22:09:29,745 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-02 22:09:29,745 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-02 22:09:29,746 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-11-02 22:09:29,746 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-11-02 22:09:29,748 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a86a182-eac0-46df-a588-cd1528836e48/bin/uautomizer-tBqnrhUYjU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Waiting until timeout for monitored process [2021-11-02 22:09:29,767 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-11-02 22:09:29,814 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a86a182-eac0-46df-a588-cd1528836e48/bin/uautomizer-tBqnrhUYjU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Forceful destruction successful, exit code 0 [2021-11-02 22:09:29,814 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-02 22:09:29,815 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a86a182-eac0-46df-a588-cd1528836e48/bin/uautomizer-tBqnrhUYjU/z3 [2021-11-02 22:09:29,816 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a86a182-eac0-46df-a588-cd1528836e48/bin/uautomizer-tBqnrhUYjU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-02 22:09:29,824 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a86a182-eac0-46df-a588-cd1528836e48/bin/uautomizer-tBqnrhUYjU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Waiting until timeout for monitored process [2021-11-02 22:09:29,824 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-11-02 22:09:29,836 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-02 22:09:29,836 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-11-02 22:09:29,836 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-02 22:09:29,836 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-02 22:09:29,836 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-02 22:09:29,840 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-11-02 22:09:29,840 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-11-02 22:09:29,847 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-11-02 22:09:29,876 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a86a182-eac0-46df-a588-cd1528836e48/bin/uautomizer-tBqnrhUYjU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Forceful destruction successful, exit code 0 [2021-11-02 22:09:29,876 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-02 22:09:29,876 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a86a182-eac0-46df-a588-cd1528836e48/bin/uautomizer-tBqnrhUYjU/z3 [2021-11-02 22:09:29,877 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a86a182-eac0-46df-a588-cd1528836e48/bin/uautomizer-tBqnrhUYjU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-02 22:09:29,883 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a86a182-eac0-46df-a588-cd1528836e48/bin/uautomizer-tBqnrhUYjU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Waiting until timeout for monitored process [2021-11-02 22:09:29,883 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-11-02 22:09:29,892 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-02 22:09:29,892 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-02 22:09:29,892 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-02 22:09:29,892 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-02 22:09:29,896 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-11-02 22:09:29,896 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-11-02 22:09:29,914 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-11-02 22:09:29,938 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a86a182-eac0-46df-a588-cd1528836e48/bin/uautomizer-tBqnrhUYjU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Ended with exit code 0 [2021-11-02 22:09:29,939 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-02 22:09:29,939 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a86a182-eac0-46df-a588-cd1528836e48/bin/uautomizer-tBqnrhUYjU/z3 [2021-11-02 22:09:29,941 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a86a182-eac0-46df-a588-cd1528836e48/bin/uautomizer-tBqnrhUYjU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-02 22:09:29,946 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-11-02 22:09:29,946 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a86a182-eac0-46df-a588-cd1528836e48/bin/uautomizer-tBqnrhUYjU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Waiting until timeout for monitored process [2021-11-02 22:09:29,955 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-02 22:09:29,955 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-11-02 22:09:29,956 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-02 22:09:29,956 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-02 22:09:29,956 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-02 22:09:29,956 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-11-02 22:09:29,957 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-11-02 22:09:29,969 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-11-02 22:09:29,993 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a86a182-eac0-46df-a588-cd1528836e48/bin/uautomizer-tBqnrhUYjU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Forceful destruction successful, exit code 0 [2021-11-02 22:09:29,993 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-02 22:09:29,994 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a86a182-eac0-46df-a588-cd1528836e48/bin/uautomizer-tBqnrhUYjU/z3 [2021-11-02 22:09:30,006 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a86a182-eac0-46df-a588-cd1528836e48/bin/uautomizer-tBqnrhUYjU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-02 22:09:30,014 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a86a182-eac0-46df-a588-cd1528836e48/bin/uautomizer-tBqnrhUYjU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Waiting until timeout for monitored process [2021-11-02 22:09:30,014 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-11-02 22:09:30,023 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-02 22:09:30,023 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-02 22:09:30,023 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-02 22:09:30,023 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-02 22:09:30,026 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-11-02 22:09:30,027 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-11-02 22:09:30,052 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-11-02 22:09:30,079 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a86a182-eac0-46df-a588-cd1528836e48/bin/uautomizer-tBqnrhUYjU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Ended with exit code 0 [2021-11-02 22:09:30,080 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-02 22:09:30,080 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a86a182-eac0-46df-a588-cd1528836e48/bin/uautomizer-tBqnrhUYjU/z3 [2021-11-02 22:09:30,081 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a86a182-eac0-46df-a588-cd1528836e48/bin/uautomizer-tBqnrhUYjU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-02 22:09:30,082 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a86a182-eac0-46df-a588-cd1528836e48/bin/uautomizer-tBqnrhUYjU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Waiting until timeout for monitored process [2021-11-02 22:09:30,086 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-11-02 22:09:30,095 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-02 22:09:30,095 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-11-02 22:09:30,095 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-02 22:09:30,095 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-02 22:09:30,096 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-02 22:09:30,096 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-11-02 22:09:30,096 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-11-02 22:09:30,099 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-11-02 22:09:30,124 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a86a182-eac0-46df-a588-cd1528836e48/bin/uautomizer-tBqnrhUYjU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Forceful destruction successful, exit code 0 [2021-11-02 22:09:30,124 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-02 22:09:30,124 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a86a182-eac0-46df-a588-cd1528836e48/bin/uautomizer-tBqnrhUYjU/z3 [2021-11-02 22:09:30,125 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a86a182-eac0-46df-a588-cd1528836e48/bin/uautomizer-tBqnrhUYjU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-02 22:09:30,129 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a86a182-eac0-46df-a588-cd1528836e48/bin/uautomizer-tBqnrhUYjU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (14)] Waiting until timeout for monitored process [2021-11-02 22:09:30,129 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-11-02 22:09:30,139 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-02 22:09:30,139 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-02 22:09:30,139 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-02 22:09:30,139 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-02 22:09:30,150 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-11-02 22:09:30,150 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-11-02 22:09:30,171 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2021-11-02 22:09:30,202 INFO L443 ModelExtractionUtils]: Simplification made 6 calls to the SMT solver. [2021-11-02 22:09:30,202 INFO L444 ModelExtractionUtils]: 14 out of 25 variables were initially zero. Simplification set additionally 8 variables to zero. [2021-11-02 22:09:30,204 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-02 22:09:30,204 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a86a182-eac0-46df-a588-cd1528836e48/bin/uautomizer-tBqnrhUYjU/z3 [2021-11-02 22:09:30,226 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a86a182-eac0-46df-a588-cd1528836e48/bin/uautomizer-tBqnrhUYjU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-02 22:09:30,263 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a86a182-eac0-46df-a588-cd1528836e48/bin/uautomizer-tBqnrhUYjU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (15)] Waiting until timeout for monitored process [2021-11-02 22:09:30,264 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2021-11-02 22:09:30,296 INFO L438 nArgumentSynthesizer]: Removed 2 redundant supporting invariants from a total of 2. [2021-11-02 22:09:30,297 INFO L513 LassoAnalysis]: Proved termination. [2021-11-02 22:09:30,297 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_cstrpbrk_~s1.offset, v_rep(select #length ULTIMATE.start_main_#t~malloc8.base)_1) = -1*ULTIMATE.start_cstrpbrk_~s1.offset + 1*v_rep(select #length ULTIMATE.start_main_#t~malloc8.base)_1 Supporting invariants [] [2021-11-02 22:09:30,375 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a86a182-eac0-46df-a588-cd1528836e48/bin/uautomizer-tBqnrhUYjU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (14)] Forceful destruction successful, exit code 0 [2021-11-02 22:09:30,418 INFO L297 tatePredicateManager]: 8 out of 9 supporting invariants were superfluous and have been removed [2021-11-02 22:09:30,476 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-02 22:09:30,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-02 22:09:30,519 INFO L263 TraceCheckSpWp]: Trace formula consists of 61 conjuncts, 8 conjunts are in the unsatisfiable core [2021-11-02 22:09:30,526 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-02 22:09:30,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-02 22:09:30,579 INFO L263 TraceCheckSpWp]: Trace formula consists of 43 conjuncts, 11 conjunts are in the unsatisfiable core [2021-11-02 22:09:30,579 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-02 22:09:30,697 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-02 22:09:30,701 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates [2021-11-02 22:09:30,703 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 10 states and 13 transitions. cyclomatic complexity: 4 Second operand has 3 states, 3 states have (on average 3.0) internal successors, (9), 3 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 22:09:30,792 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 10 states and 13 transitions. cyclomatic complexity: 4. Second operand has 3 states, 3 states have (on average 3.0) internal successors, (9), 3 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 16 states and 20 transitions. Complement of second has 4 states. [2021-11-02 22:09:30,793 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 3 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2021-11-02 22:09:30,794 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 3.0) internal successors, (9), 3 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 22:09:30,794 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 14 transitions. [2021-11-02 22:09:30,796 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 14 transitions. Stem has 5 letters. Loop has 4 letters. [2021-11-02 22:09:30,798 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-11-02 22:09:30,798 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 14 transitions. Stem has 9 letters. Loop has 4 letters. [2021-11-02 22:09:30,798 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-11-02 22:09:30,798 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 14 transitions. Stem has 5 letters. Loop has 8 letters. [2021-11-02 22:09:30,799 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-11-02 22:09:30,799 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 16 states and 20 transitions. [2021-11-02 22:09:30,801 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2021-11-02 22:09:30,802 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 16 states to 15 states and 19 transitions. [2021-11-02 22:09:30,802 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 9 [2021-11-02 22:09:30,802 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 10 [2021-11-02 22:09:30,802 INFO L73 IsDeterministic]: Start isDeterministic. Operand 15 states and 19 transitions. [2021-11-02 22:09:30,803 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2021-11-02 22:09:30,803 INFO L681 BuchiCegarLoop]: Abstraction has 15 states and 19 transitions. [2021-11-02 22:09:30,803 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15 states and 19 transitions. [2021-11-02 22:09:30,804 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15 to 14. [2021-11-02 22:09:30,805 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14 states, 14 states have (on average 1.2857142857142858) internal successors, (18), 13 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 22:09:30,806 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 18 transitions. [2021-11-02 22:09:30,806 INFO L704 BuchiCegarLoop]: Abstraction has 14 states and 18 transitions. [2021-11-02 22:09:30,806 INFO L587 BuchiCegarLoop]: Abstraction has 14 states and 18 transitions. [2021-11-02 22:09:30,806 INFO L425 BuchiCegarLoop]: ======== Iteration 3============ [2021-11-02 22:09:30,807 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 14 states and 18 transitions. [2021-11-02 22:09:30,807 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2021-11-02 22:09:30,808 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-11-02 22:09:30,808 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-11-02 22:09:30,808 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2021-11-02 22:09:30,809 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2021-11-02 22:09:30,809 INFO L791 eck$LassoCheckResult]: Stem: 152#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier; 153#L-1 havoc main_#res;havoc main_#t~nondet6, main_#t~nondet7, main_#t~malloc8.base, main_#t~malloc8.offset, main_#t~malloc9.base, main_#t~malloc9.offset, main_#t~ret10.base, main_#t~ret10.offset, main_~length1~0, main_~length2~0, main_~nondetString1~0.base, main_~nondetString1~0.offset, main_~nondetString2~0.base, main_~nondetString2~0.offset;main_~length1~0 := main_#t~nondet6;havoc main_#t~nondet6;main_~length2~0 := main_#t~nondet7;havoc main_#t~nondet7; 158#L562 assume !(main_~length1~0 < 1); 159#L562-2 assume !(main_~length2~0 < 1); 160#L565-1 call main_#t~malloc8.base, main_#t~malloc8.offset := #Ultimate.allocOnStack(main_~length1~0);main_~nondetString1~0.base, main_~nondetString1~0.offset := main_#t~malloc8.base, main_#t~malloc8.offset;call main_#t~malloc9.base, main_#t~malloc9.offset := #Ultimate.allocOnStack(main_~length2~0);main_~nondetString2~0.base, main_~nondetString2~0.offset := main_#t~malloc9.base, main_#t~malloc9.offset;call write~int(0, main_~nondetString1~0.base, main_~nondetString1~0.offset + (main_~length1~0 - 1), 1);call write~int(0, main_~nondetString2~0.base, main_~nondetString2~0.offset + (main_~length2~0 - 1), 1);cstrpbrk_#in~s1.base, cstrpbrk_#in~s1.offset, cstrpbrk_#in~s2.base, cstrpbrk_#in~s2.offset := main_~nondetString1~0.base, main_~nondetString1~0.offset, main_~nondetString2~0.base, main_~nondetString2~0.offset;havoc cstrpbrk_#res.base, cstrpbrk_#res.offset;havoc cstrpbrk_#t~post4.base, cstrpbrk_#t~post4.offset, cstrpbrk_#t~mem5, cstrpbrk_#t~post2.base, cstrpbrk_#t~post2.offset, cstrpbrk_#t~mem3, cstrpbrk_~s1.base, cstrpbrk_~s1.offset, cstrpbrk_~s2.base, cstrpbrk_~s2.offset, cstrpbrk_~scanp~0.base, cstrpbrk_~scanp~0.offset, cstrpbrk_~c~0, cstrpbrk_~sc~0;cstrpbrk_~s1.base, cstrpbrk_~s1.offset := cstrpbrk_#in~s1.base, cstrpbrk_#in~s1.offset;cstrpbrk_~s2.base, cstrpbrk_~s2.offset := cstrpbrk_#in~s2.base, cstrpbrk_#in~s2.offset;havoc cstrpbrk_~scanp~0.base, cstrpbrk_~scanp~0.offset;havoc cstrpbrk_~c~0;havoc cstrpbrk_~sc~0; 161#L553-4 cstrpbrk_#t~post2.base, cstrpbrk_#t~post2.offset := cstrpbrk_~s1.base, cstrpbrk_~s1.offset;cstrpbrk_~s1.base, cstrpbrk_~s1.offset := cstrpbrk_#t~post2.base, 1 + cstrpbrk_#t~post2.offset;call cstrpbrk_#t~mem3 := read~int(cstrpbrk_#t~post2.base, cstrpbrk_#t~post2.offset, 1);cstrpbrk_~c~0 := cstrpbrk_#t~mem3; 165#L552-1 assume !!(0 != cstrpbrk_~c~0);havoc cstrpbrk_#t~post2.base, cstrpbrk_#t~post2.offset;havoc cstrpbrk_#t~mem3;cstrpbrk_~scanp~0.base, cstrpbrk_~scanp~0.offset := cstrpbrk_~s2.base, cstrpbrk_~s2.offset; 154#L553-3 [2021-11-02 22:09:30,809 INFO L793 eck$LassoCheckResult]: Loop: 154#L553-3 cstrpbrk_#t~post4.base, cstrpbrk_#t~post4.offset := cstrpbrk_~scanp~0.base, cstrpbrk_~scanp~0.offset;cstrpbrk_~scanp~0.base, cstrpbrk_~scanp~0.offset := cstrpbrk_#t~post4.base, 1 + cstrpbrk_#t~post4.offset;call cstrpbrk_#t~mem5 := read~int(cstrpbrk_#t~post4.base, cstrpbrk_#t~post4.offset, 1);cstrpbrk_~sc~0 := cstrpbrk_#t~mem5; 155#L553-1 assume !!(0 != cstrpbrk_~sc~0);havoc cstrpbrk_#t~post4.base, cstrpbrk_#t~post4.offset;havoc cstrpbrk_#t~mem5; 162#L554 assume !(cstrpbrk_~sc~0 == cstrpbrk_~c~0); 154#L553-3 [2021-11-02 22:09:30,810 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-02 22:09:30,810 INFO L85 PathProgramCache]: Analyzing trace with hash 1806935627, now seen corresponding path program 1 times [2021-11-02 22:09:30,810 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-02 22:09:30,810 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1478850502] [2021-11-02 22:09:30,811 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-02 22:09:30,811 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-02 22:09:30,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-02 22:09:30,840 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-02 22:09:30,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-02 22:09:30,897 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-11-02 22:09:30,898 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-02 22:09:30,898 INFO L85 PathProgramCache]: Analyzing trace with hash 58753, now seen corresponding path program 1 times [2021-11-02 22:09:30,899 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-02 22:09:30,899 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1047941903] [2021-11-02 22:09:30,899 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-02 22:09:30,900 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-02 22:09:30,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-02 22:09:30,913 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-02 22:09:30,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-02 22:09:30,920 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-11-02 22:09:30,921 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-02 22:09:30,922 INFO L85 PathProgramCache]: Analyzing trace with hash 1594172151, now seen corresponding path program 1 times [2021-11-02 22:09:30,922 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-02 22:09:30,922 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1192962573] [2021-11-02 22:09:30,922 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-02 22:09:30,923 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-02 22:09:30,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-02 22:09:30,946 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-02 22:09:30,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-02 22:09:30,976 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-11-02 22:09:31,719 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a86a182-eac0-46df-a588-cd1528836e48/bin/uautomizer-tBqnrhUYjU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (15)] Forceful destruction successful, exit code 0 [2021-11-02 22:09:31,933 INFO L210 LassoAnalysis]: Preferences: [2021-11-02 22:09:31,933 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-11-02 22:09:31,934 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-11-02 22:09:31,934 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-11-02 22:09:31,934 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2021-11-02 22:09:31,934 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-02 22:09:31,934 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-11-02 22:09:31,934 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-11-02 22:09:31,934 INFO L133 ssoRankerPreferences]: Filename of dumped script: openbsd_cstrpbrk-alloca-1.i_Iteration3_Lasso [2021-11-02 22:09:31,934 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-11-02 22:09:31,934 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-11-02 22:09:31,940 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-02 22:09:31,948 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-02 22:09:31,951 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-02 22:09:31,953 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-02 22:09:31,957 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-02 22:09:31,960 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-02 22:09:32,378 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-02 22:09:32,383 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-02 22:09:32,385 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-02 22:09:32,388 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-02 22:09:32,390 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-02 22:09:32,393 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-02 22:09:32,396 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-02 22:09:32,399 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-02 22:09:32,401 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-02 22:09:32,404 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-02 22:09:32,407 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-02 22:09:32,409 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-02 22:09:32,413 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-02 22:09:32,924 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-11-02 22:09:32,927 INFO L490 LassoAnalysis]: Using template 'affine'. [2021-11-02 22:09:32,927 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-02 22:09:32,927 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a86a182-eac0-46df-a588-cd1528836e48/bin/uautomizer-tBqnrhUYjU/z3 [2021-11-02 22:09:32,928 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a86a182-eac0-46df-a588-cd1528836e48/bin/uautomizer-tBqnrhUYjU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-02 22:09:32,935 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 [2021-11-02 22:09:32,947 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-02 22:09:32,947 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-11-02 22:09:32,948 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-02 22:09:32,948 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-02 22:09:32,948 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-02 22:09:32,949 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-11-02 22:09:32,949 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-11-02 22:09:32,953 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a86a182-eac0-46df-a588-cd1528836e48/bin/uautomizer-tBqnrhUYjU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (16)] Waiting until timeout for monitored process [2021-11-02 22:09:32,971 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-11-02 22:09:33,015 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a86a182-eac0-46df-a588-cd1528836e48/bin/uautomizer-tBqnrhUYjU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (16)] Forceful destruction successful, exit code 0 [2021-11-02 22:09:33,016 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-02 22:09:33,016 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a86a182-eac0-46df-a588-cd1528836e48/bin/uautomizer-tBqnrhUYjU/z3 [2021-11-02 22:09:33,017 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a86a182-eac0-46df-a588-cd1528836e48/bin/uautomizer-tBqnrhUYjU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-02 22:09:33,026 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-11-02 22:09:33,037 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-02 22:09:33,038 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-11-02 22:09:33,038 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-02 22:09:33,038 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-02 22:09:33,038 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-02 22:09:33,039 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-11-02 22:09:33,039 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-11-02 22:09:33,041 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a86a182-eac0-46df-a588-cd1528836e48/bin/uautomizer-tBqnrhUYjU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (17)] Waiting until timeout for monitored process [2021-11-02 22:09:33,059 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-11-02 22:09:33,098 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a86a182-eac0-46df-a588-cd1528836e48/bin/uautomizer-tBqnrhUYjU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (17)] Forceful destruction successful, exit code 0 [2021-11-02 22:09:33,099 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-02 22:09:33,099 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a86a182-eac0-46df-a588-cd1528836e48/bin/uautomizer-tBqnrhUYjU/z3 [2021-11-02 22:09:33,104 INFO L229 MonitoredProcess]: Starting monitored process 18 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a86a182-eac0-46df-a588-cd1528836e48/bin/uautomizer-tBqnrhUYjU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-02 22:09:33,110 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-11-02 22:09:33,121 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-02 22:09:33,122 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-11-02 22:09:33,122 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-02 22:09:33,122 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-02 22:09:33,122 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-02 22:09:33,123 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-11-02 22:09:33,123 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-11-02 22:09:33,123 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a86a182-eac0-46df-a588-cd1528836e48/bin/uautomizer-tBqnrhUYjU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (18)] Waiting until timeout for monitored process [2021-11-02 22:09:33,147 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-11-02 22:09:33,191 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a86a182-eac0-46df-a588-cd1528836e48/bin/uautomizer-tBqnrhUYjU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (18)] Forceful destruction successful, exit code 0 [2021-11-02 22:09:33,191 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-02 22:09:33,192 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a86a182-eac0-46df-a588-cd1528836e48/bin/uautomizer-tBqnrhUYjU/z3 [2021-11-02 22:09:33,193 INFO L229 MonitoredProcess]: Starting monitored process 19 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a86a182-eac0-46df-a588-cd1528836e48/bin/uautomizer-tBqnrhUYjU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-02 22:09:33,203 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-11-02 22:09:33,214 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-02 22:09:33,214 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-02 22:09:33,214 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-02 22:09:33,214 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-02 22:09:33,218 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-11-02 22:09:33,218 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-11-02 22:09:33,222 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a86a182-eac0-46df-a588-cd1528836e48/bin/uautomizer-tBqnrhUYjU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (19)] Waiting until timeout for monitored process [2021-11-02 22:09:33,231 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-11-02 22:09:33,276 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a86a182-eac0-46df-a588-cd1528836e48/bin/uautomizer-tBqnrhUYjU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (19)] Forceful destruction successful, exit code 0 [2021-11-02 22:09:33,277 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-02 22:09:33,277 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a86a182-eac0-46df-a588-cd1528836e48/bin/uautomizer-tBqnrhUYjU/z3 [2021-11-02 22:09:33,278 INFO L229 MonitoredProcess]: Starting monitored process 20 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a86a182-eac0-46df-a588-cd1528836e48/bin/uautomizer-tBqnrhUYjU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-02 22:09:33,286 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-11-02 22:09:33,297 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a86a182-eac0-46df-a588-cd1528836e48/bin/uautomizer-tBqnrhUYjU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (20)] Waiting until timeout for monitored process [2021-11-02 22:09:33,297 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-02 22:09:33,297 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-11-02 22:09:33,298 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-02 22:09:33,298 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-02 22:09:33,298 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-02 22:09:33,299 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-11-02 22:09:33,299 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-11-02 22:09:33,311 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-11-02 22:09:33,356 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a86a182-eac0-46df-a588-cd1528836e48/bin/uautomizer-tBqnrhUYjU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (20)] Forceful destruction successful, exit code 0 [2021-11-02 22:09:33,357 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-02 22:09:33,357 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a86a182-eac0-46df-a588-cd1528836e48/bin/uautomizer-tBqnrhUYjU/z3 [2021-11-02 22:09:33,358 INFO L229 MonitoredProcess]: Starting monitored process 21 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a86a182-eac0-46df-a588-cd1528836e48/bin/uautomizer-tBqnrhUYjU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-02 22:09:33,387 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a86a182-eac0-46df-a588-cd1528836e48/bin/uautomizer-tBqnrhUYjU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (21)] Waiting until timeout for monitored process [2021-11-02 22:09:33,388 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-11-02 22:09:33,400 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-02 22:09:33,400 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-02 22:09:33,400 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-02 22:09:33,400 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-02 22:09:33,412 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-11-02 22:09:33,413 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-11-02 22:09:33,431 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-11-02 22:09:33,474 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a86a182-eac0-46df-a588-cd1528836e48/bin/uautomizer-tBqnrhUYjU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (21)] Forceful destruction successful, exit code 0 [2021-11-02 22:09:33,475 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-02 22:09:33,475 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a86a182-eac0-46df-a588-cd1528836e48/bin/uautomizer-tBqnrhUYjU/z3 [2021-11-02 22:09:33,476 INFO L229 MonitoredProcess]: Starting monitored process 22 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a86a182-eac0-46df-a588-cd1528836e48/bin/uautomizer-tBqnrhUYjU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-02 22:09:33,479 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-11-02 22:09:33,490 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-02 22:09:33,491 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-02 22:09:33,491 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-02 22:09:33,491 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-02 22:09:33,494 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-11-02 22:09:33,494 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-11-02 22:09:33,498 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a86a182-eac0-46df-a588-cd1528836e48/bin/uautomizer-tBqnrhUYjU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (22)] Waiting until timeout for monitored process [2021-11-02 22:09:33,507 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-11-02 22:09:33,547 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a86a182-eac0-46df-a588-cd1528836e48/bin/uautomizer-tBqnrhUYjU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (22)] Forceful destruction successful, exit code 0 [2021-11-02 22:09:33,548 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-02 22:09:33,548 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a86a182-eac0-46df-a588-cd1528836e48/bin/uautomizer-tBqnrhUYjU/z3 [2021-11-02 22:09:33,552 INFO L229 MonitoredProcess]: Starting monitored process 23 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a86a182-eac0-46df-a588-cd1528836e48/bin/uautomizer-tBqnrhUYjU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-02 22:09:33,555 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-11-02 22:09:33,567 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-02 22:09:33,567 INFO L203 nArgumentSynthesizer]: 2 stem disjuncts [2021-11-02 22:09:33,567 INFO L204 nArgumentSynthesizer]: 4 loop disjuncts [2021-11-02 22:09:33,567 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-02 22:09:33,575 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a86a182-eac0-46df-a588-cd1528836e48/bin/uautomizer-tBqnrhUYjU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (23)] Waiting until timeout for monitored process [2021-11-02 22:09:33,609 INFO L401 nArgumentSynthesizer]: We have 56 Motzkin's Theorem applications. [2021-11-02 22:09:33,609 INFO L402 nArgumentSynthesizer]: A total of 8 supporting invariants were added. [2021-11-02 22:09:33,691 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-11-02 22:09:33,736 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a86a182-eac0-46df-a588-cd1528836e48/bin/uautomizer-tBqnrhUYjU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (23)] Forceful destruction successful, exit code 0 [2021-11-02 22:09:33,737 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-02 22:09:33,737 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a86a182-eac0-46df-a588-cd1528836e48/bin/uautomizer-tBqnrhUYjU/z3 [2021-11-02 22:09:33,738 INFO L229 MonitoredProcess]: Starting monitored process 24 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a86a182-eac0-46df-a588-cd1528836e48/bin/uautomizer-tBqnrhUYjU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-02 22:09:33,741 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-11-02 22:09:33,752 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-02 22:09:33,753 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-02 22:09:33,753 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-02 22:09:33,753 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-02 22:09:33,755 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-11-02 22:09:33,755 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-11-02 22:09:33,760 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a86a182-eac0-46df-a588-cd1528836e48/bin/uautomizer-tBqnrhUYjU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (24)] Waiting until timeout for monitored process [2021-11-02 22:09:33,767 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-11-02 22:09:33,811 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a86a182-eac0-46df-a588-cd1528836e48/bin/uautomizer-tBqnrhUYjU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (24)] Forceful destruction successful, exit code 0 [2021-11-02 22:09:33,811 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-02 22:09:33,811 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a86a182-eac0-46df-a588-cd1528836e48/bin/uautomizer-tBqnrhUYjU/z3 [2021-11-02 22:09:33,812 INFO L229 MonitoredProcess]: Starting monitored process 25 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a86a182-eac0-46df-a588-cd1528836e48/bin/uautomizer-tBqnrhUYjU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-02 22:09:33,814 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a86a182-eac0-46df-a588-cd1528836e48/bin/uautomizer-tBqnrhUYjU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (25)] Waiting until timeout for monitored process [2021-11-02 22:09:33,816 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-11-02 22:09:33,825 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-02 22:09:33,825 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-02 22:09:33,826 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-02 22:09:33,826 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-02 22:09:33,827 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-11-02 22:09:33,828 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-11-02 22:09:33,841 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-11-02 22:09:33,881 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a86a182-eac0-46df-a588-cd1528836e48/bin/uautomizer-tBqnrhUYjU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (25)] Ended with exit code 0 [2021-11-02 22:09:33,881 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-02 22:09:33,882 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a86a182-eac0-46df-a588-cd1528836e48/bin/uautomizer-tBqnrhUYjU/z3 [2021-11-02 22:09:33,882 INFO L229 MonitoredProcess]: Starting monitored process 26 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a86a182-eac0-46df-a588-cd1528836e48/bin/uautomizer-tBqnrhUYjU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-02 22:09:33,885 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a86a182-eac0-46df-a588-cd1528836e48/bin/uautomizer-tBqnrhUYjU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (26)] Waiting until timeout for monitored process [2021-11-02 22:09:33,887 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-11-02 22:09:33,896 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-02 22:09:33,897 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-02 22:09:33,897 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-02 22:09:33,897 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-02 22:09:33,911 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-11-02 22:09:33,912 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-11-02 22:09:33,935 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2021-11-02 22:09:33,963 INFO L443 ModelExtractionUtils]: Simplification made 9 calls to the SMT solver. [2021-11-02 22:09:33,964 INFO L444 ModelExtractionUtils]: 20 out of 28 variables were initially zero. Simplification set additionally 5 variables to zero. [2021-11-02 22:09:33,964 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-02 22:09:33,964 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a86a182-eac0-46df-a588-cd1528836e48/bin/uautomizer-tBqnrhUYjU/z3 [2021-11-02 22:09:33,968 INFO L229 MonitoredProcess]: Starting monitored process 27 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a86a182-eac0-46df-a588-cd1528836e48/bin/uautomizer-tBqnrhUYjU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-02 22:09:33,974 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2021-11-02 22:09:33,975 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a86a182-eac0-46df-a588-cd1528836e48/bin/uautomizer-tBqnrhUYjU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (27)] Waiting until timeout for monitored process [2021-11-02 22:09:34,001 INFO L438 nArgumentSynthesizer]: Removed 2 redundant supporting invariants from a total of 2. [2021-11-02 22:09:34,001 INFO L513 LassoAnalysis]: Proved termination. [2021-11-02 22:09:34,001 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(v_rep(select #length ULTIMATE.start_main_#t~malloc9.base)_2, ULTIMATE.start_cstrpbrk_~scanp~0.offset) = 1*v_rep(select #length ULTIMATE.start_main_#t~malloc9.base)_2 - 1*ULTIMATE.start_cstrpbrk_~scanp~0.offset Supporting invariants [] [2021-11-02 22:09:34,045 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a86a182-eac0-46df-a588-cd1528836e48/bin/uautomizer-tBqnrhUYjU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (26)] Ended with exit code 0 [2021-11-02 22:09:34,092 INFO L297 tatePredicateManager]: 12 out of 13 supporting invariants were superfluous and have been removed [2021-11-02 22:09:34,120 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-02 22:09:34,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-02 22:09:34,143 INFO L263 TraceCheckSpWp]: Trace formula consists of 82 conjuncts, 10 conjunts are in the unsatisfiable core [2021-11-02 22:09:34,144 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-02 22:09:34,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-02 22:09:34,200 WARN L261 TraceCheckSpWp]: Trace formula consists of 22 conjuncts, 11 conjunts are in the unsatisfiable core [2021-11-02 22:09:34,201 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-02 22:09:34,260 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-02 22:09:34,262 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.2 stem predicates 2 loop predicates [2021-11-02 22:09:34,262 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 14 states and 18 transitions. cyclomatic complexity: 6 Second operand has 4 states, 4 states have (on average 2.5) internal successors, (10), 4 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 22:09:34,302 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 14 states and 18 transitions. cyclomatic complexity: 6. Second operand has 4 states, 4 states have (on average 2.5) internal successors, (10), 4 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 31 states and 38 transitions. Complement of second has 6 states. [2021-11-02 22:09:34,303 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 2 stem states 1 non-accepting loop states 1 accepting loop states [2021-11-02 22:09:34,303 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4 states, 4 states have (on average 2.5) internal successors, (10), 4 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 22:09:34,304 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 15 transitions. [2021-11-02 22:09:34,304 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 15 transitions. Stem has 7 letters. Loop has 3 letters. [2021-11-02 22:09:34,304 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-11-02 22:09:34,305 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 15 transitions. Stem has 10 letters. Loop has 3 letters. [2021-11-02 22:09:34,305 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-11-02 22:09:34,305 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 15 transitions. Stem has 7 letters. Loop has 6 letters. [2021-11-02 22:09:34,306 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-11-02 22:09:34,307 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 31 states and 38 transitions. [2021-11-02 22:09:34,315 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2021-11-02 22:09:34,318 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 31 states to 21 states and 27 transitions. [2021-11-02 22:09:34,318 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 9 [2021-11-02 22:09:34,319 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 9 [2021-11-02 22:09:34,319 INFO L73 IsDeterministic]: Start isDeterministic. Operand 21 states and 27 transitions. [2021-11-02 22:09:34,319 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2021-11-02 22:09:34,319 INFO L681 BuchiCegarLoop]: Abstraction has 21 states and 27 transitions. [2021-11-02 22:09:34,319 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21 states and 27 transitions. [2021-11-02 22:09:34,323 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21 to 15. [2021-11-02 22:09:34,324 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15 states, 15 states have (on average 1.2666666666666666) internal successors, (19), 14 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 22:09:34,325 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 19 transitions. [2021-11-02 22:09:34,326 INFO L704 BuchiCegarLoop]: Abstraction has 15 states and 19 transitions. [2021-11-02 22:09:34,326 INFO L587 BuchiCegarLoop]: Abstraction has 15 states and 19 transitions. [2021-11-02 22:09:34,326 INFO L425 BuchiCegarLoop]: ======== Iteration 4============ [2021-11-02 22:09:34,326 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 15 states and 19 transitions. [2021-11-02 22:09:34,329 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2021-11-02 22:09:34,330 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-11-02 22:09:34,330 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-11-02 22:09:34,331 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [2, 2, 1, 1, 1, 1, 1, 1, 1] [2021-11-02 22:09:34,331 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2021-11-02 22:09:34,331 INFO L791 eck$LassoCheckResult]: Stem: 308#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier; 309#L-1 havoc main_#res;havoc main_#t~nondet6, main_#t~nondet7, main_#t~malloc8.base, main_#t~malloc8.offset, main_#t~malloc9.base, main_#t~malloc9.offset, main_#t~ret10.base, main_#t~ret10.offset, main_~length1~0, main_~length2~0, main_~nondetString1~0.base, main_~nondetString1~0.offset, main_~nondetString2~0.base, main_~nondetString2~0.offset;main_~length1~0 := main_#t~nondet6;havoc main_#t~nondet6;main_~length2~0 := main_#t~nondet7;havoc main_#t~nondet7; 314#L562 assume !(main_~length1~0 < 1); 315#L562-2 assume !(main_~length2~0 < 1); 316#L565-1 call main_#t~malloc8.base, main_#t~malloc8.offset := #Ultimate.allocOnStack(main_~length1~0);main_~nondetString1~0.base, main_~nondetString1~0.offset := main_#t~malloc8.base, main_#t~malloc8.offset;call main_#t~malloc9.base, main_#t~malloc9.offset := #Ultimate.allocOnStack(main_~length2~0);main_~nondetString2~0.base, main_~nondetString2~0.offset := main_#t~malloc9.base, main_#t~malloc9.offset;call write~int(0, main_~nondetString1~0.base, main_~nondetString1~0.offset + (main_~length1~0 - 1), 1);call write~int(0, main_~nondetString2~0.base, main_~nondetString2~0.offset + (main_~length2~0 - 1), 1);cstrpbrk_#in~s1.base, cstrpbrk_#in~s1.offset, cstrpbrk_#in~s2.base, cstrpbrk_#in~s2.offset := main_~nondetString1~0.base, main_~nondetString1~0.offset, main_~nondetString2~0.base, main_~nondetString2~0.offset;havoc cstrpbrk_#res.base, cstrpbrk_#res.offset;havoc cstrpbrk_#t~post4.base, cstrpbrk_#t~post4.offset, cstrpbrk_#t~mem5, cstrpbrk_#t~post2.base, cstrpbrk_#t~post2.offset, cstrpbrk_#t~mem3, cstrpbrk_~s1.base, cstrpbrk_~s1.offset, cstrpbrk_~s2.base, cstrpbrk_~s2.offset, cstrpbrk_~scanp~0.base, cstrpbrk_~scanp~0.offset, cstrpbrk_~c~0, cstrpbrk_~sc~0;cstrpbrk_~s1.base, cstrpbrk_~s1.offset := cstrpbrk_#in~s1.base, cstrpbrk_#in~s1.offset;cstrpbrk_~s2.base, cstrpbrk_~s2.offset := cstrpbrk_#in~s2.base, cstrpbrk_#in~s2.offset;havoc cstrpbrk_~scanp~0.base, cstrpbrk_~scanp~0.offset;havoc cstrpbrk_~c~0;havoc cstrpbrk_~sc~0; 317#L553-4 cstrpbrk_#t~post2.base, cstrpbrk_#t~post2.offset := cstrpbrk_~s1.base, cstrpbrk_~s1.offset;cstrpbrk_~s1.base, cstrpbrk_~s1.offset := cstrpbrk_#t~post2.base, 1 + cstrpbrk_#t~post2.offset;call cstrpbrk_#t~mem3 := read~int(cstrpbrk_#t~post2.base, cstrpbrk_#t~post2.offset, 1);cstrpbrk_~c~0 := cstrpbrk_#t~mem3; 321#L552-1 assume !!(0 != cstrpbrk_~c~0);havoc cstrpbrk_#t~post2.base, cstrpbrk_#t~post2.offset;havoc cstrpbrk_#t~mem3;cstrpbrk_~scanp~0.base, cstrpbrk_~scanp~0.offset := cstrpbrk_~s2.base, cstrpbrk_~s2.offset; 312#L553-3 cstrpbrk_#t~post4.base, cstrpbrk_#t~post4.offset := cstrpbrk_~scanp~0.base, cstrpbrk_~scanp~0.offset;cstrpbrk_~scanp~0.base, cstrpbrk_~scanp~0.offset := cstrpbrk_#t~post4.base, 1 + cstrpbrk_#t~post4.offset;call cstrpbrk_#t~mem5 := read~int(cstrpbrk_#t~post4.base, cstrpbrk_#t~post4.offset, 1);cstrpbrk_~sc~0 := cstrpbrk_#t~mem5; 313#L553-1 assume !(0 != cstrpbrk_~sc~0);havoc cstrpbrk_#t~post4.base, cstrpbrk_#t~post4.offset;havoc cstrpbrk_#t~mem5; 319#L553-4 cstrpbrk_#t~post2.base, cstrpbrk_#t~post2.offset := cstrpbrk_~s1.base, cstrpbrk_~s1.offset;cstrpbrk_~s1.base, cstrpbrk_~s1.offset := cstrpbrk_#t~post2.base, 1 + cstrpbrk_#t~post2.offset;call cstrpbrk_#t~mem3 := read~int(cstrpbrk_#t~post2.base, cstrpbrk_#t~post2.offset, 1);cstrpbrk_~c~0 := cstrpbrk_#t~mem3; 322#L552-1 assume !!(0 != cstrpbrk_~c~0);havoc cstrpbrk_#t~post2.base, cstrpbrk_#t~post2.offset;havoc cstrpbrk_#t~mem3;cstrpbrk_~scanp~0.base, cstrpbrk_~scanp~0.offset := cstrpbrk_~s2.base, cstrpbrk_~s2.offset; 310#L553-3 [2021-11-02 22:09:34,331 INFO L793 eck$LassoCheckResult]: Loop: 310#L553-3 cstrpbrk_#t~post4.base, cstrpbrk_#t~post4.offset := cstrpbrk_~scanp~0.base, cstrpbrk_~scanp~0.offset;cstrpbrk_~scanp~0.base, cstrpbrk_~scanp~0.offset := cstrpbrk_#t~post4.base, 1 + cstrpbrk_#t~post4.offset;call cstrpbrk_#t~mem5 := read~int(cstrpbrk_#t~post4.base, cstrpbrk_#t~post4.offset, 1);cstrpbrk_~sc~0 := cstrpbrk_#t~mem5; 311#L553-1 assume !!(0 != cstrpbrk_~sc~0);havoc cstrpbrk_#t~post4.base, cstrpbrk_#t~post4.offset;havoc cstrpbrk_#t~mem5; 318#L554 assume !(cstrpbrk_~sc~0 == cstrpbrk_~c~0); 310#L553-3 [2021-11-02 22:09:34,332 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-02 22:09:34,332 INFO L85 PathProgramCache]: Analyzing trace with hash -2120273357, now seen corresponding path program 2 times [2021-11-02 22:09:34,332 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-02 22:09:34,335 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1659646678] [2021-11-02 22:09:34,335 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-02 22:09:34,336 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-02 22:09:34,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-02 22:09:34,371 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-02 22:09:34,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-02 22:09:34,399 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-11-02 22:09:34,399 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-02 22:09:34,400 INFO L85 PathProgramCache]: Analyzing trace with hash 58753, now seen corresponding path program 2 times [2021-11-02 22:09:34,400 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-02 22:09:34,400 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2061088343] [2021-11-02 22:09:34,400 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-02 22:09:34,401 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-02 22:09:34,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-02 22:09:34,406 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-02 22:09:34,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-02 22:09:34,411 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-11-02 22:09:34,412 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-02 22:09:34,412 INFO L85 PathProgramCache]: Analyzing trace with hash 1020472847, now seen corresponding path program 1 times [2021-11-02 22:09:34,413 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-02 22:09:34,413 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1902723912] [2021-11-02 22:09:34,413 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-02 22:09:34,413 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-02 22:09:34,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-02 22:09:34,498 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 2 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-02 22:09:34,499 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-02 22:09:34,499 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1902723912] [2021-11-02 22:09:34,499 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1902723912] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-02 22:09:34,500 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1758185485] [2021-11-02 22:09:34,500 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-02 22:09:34,500 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-02 22:09:34,500 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a86a182-eac0-46df-a588-cd1528836e48/bin/uautomizer-tBqnrhUYjU/z3 [2021-11-02 22:09:34,516 INFO L229 MonitoredProcess]: Starting monitored process 28 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a86a182-eac0-46df-a588-cd1528836e48/bin/uautomizer-tBqnrhUYjU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-02 22:09:34,522 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a86a182-eac0-46df-a588-cd1528836e48/bin/uautomizer-tBqnrhUYjU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (28)] Waiting until timeout for monitored process [2021-11-02 22:09:34,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-02 22:09:34,608 INFO L263 TraceCheckSpWp]: Trace formula consists of 139 conjuncts, 39 conjunts are in the unsatisfiable core [2021-11-02 22:09:34,610 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-02 22:09:34,685 INFO L354 Elim1Store]: treesize reduction 40, result has 20.0 percent of original size [2021-11-02 22:09:34,686 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 1 case distinctions, treesize of input 36 treesize of output 21 [2021-11-02 22:09:46,926 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 7 [2021-11-02 22:09:46,932 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 2 refuted. 2 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-02 22:09:46,933 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1758185485] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-02 22:09:46,933 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-11-02 22:09:46,933 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 8] total 10 [2021-11-02 22:09:46,934 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [353203122] [2021-11-02 22:09:47,005 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-02 22:09:47,006 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-11-02 22:09:47,006 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=68, Unknown=1, NotChecked=0, Total=90 [2021-11-02 22:09:47,007 INFO L87 Difference]: Start difference. First operand 15 states and 19 transitions. cyclomatic complexity: 6 Second operand has 10 states, 10 states have (on average 1.9) internal successors, (19), 10 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 22:09:47,193 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-02 22:09:47,193 INFO L93 Difference]: Finished difference Result 30 states and 35 transitions. [2021-11-02 22:09:47,194 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-11-02 22:09:47,194 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 30 states and 35 transitions. [2021-11-02 22:09:47,195 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2021-11-02 22:09:47,196 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 30 states to 24 states and 28 transitions. [2021-11-02 22:09:47,196 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 13 [2021-11-02 22:09:47,196 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 13 [2021-11-02 22:09:47,196 INFO L73 IsDeterministic]: Start isDeterministic. Operand 24 states and 28 transitions. [2021-11-02 22:09:47,197 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2021-11-02 22:09:47,197 INFO L681 BuchiCegarLoop]: Abstraction has 24 states and 28 transitions. [2021-11-02 22:09:47,197 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24 states and 28 transitions. [2021-11-02 22:09:47,198 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24 to 17. [2021-11-02 22:09:47,199 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17 states, 17 states have (on average 1.2352941176470589) internal successors, (21), 16 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 22:09:47,199 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 21 transitions. [2021-11-02 22:09:47,200 INFO L704 BuchiCegarLoop]: Abstraction has 17 states and 21 transitions. [2021-11-02 22:09:47,200 INFO L587 BuchiCegarLoop]: Abstraction has 17 states and 21 transitions. [2021-11-02 22:09:47,200 INFO L425 BuchiCegarLoop]: ======== Iteration 5============ [2021-11-02 22:09:47,200 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 17 states and 21 transitions. [2021-11-02 22:09:47,201 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2021-11-02 22:09:47,201 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-11-02 22:09:47,201 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-11-02 22:09:47,202 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-02 22:09:47,202 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2021-11-02 22:09:47,202 INFO L791 eck$LassoCheckResult]: Stem: 417#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier; 418#L-1 havoc main_#res;havoc main_#t~nondet6, main_#t~nondet7, main_#t~malloc8.base, main_#t~malloc8.offset, main_#t~malloc9.base, main_#t~malloc9.offset, main_#t~ret10.base, main_#t~ret10.offset, main_~length1~0, main_~length2~0, main_~nondetString1~0.base, main_~nondetString1~0.offset, main_~nondetString2~0.base, main_~nondetString2~0.offset;main_~length1~0 := main_#t~nondet6;havoc main_#t~nondet6;main_~length2~0 := main_#t~nondet7;havoc main_#t~nondet7; 423#L562 assume !(main_~length1~0 < 1); 424#L562-2 assume !(main_~length2~0 < 1); 427#L565-1 call main_#t~malloc8.base, main_#t~malloc8.offset := #Ultimate.allocOnStack(main_~length1~0);main_~nondetString1~0.base, main_~nondetString1~0.offset := main_#t~malloc8.base, main_#t~malloc8.offset;call main_#t~malloc9.base, main_#t~malloc9.offset := #Ultimate.allocOnStack(main_~length2~0);main_~nondetString2~0.base, main_~nondetString2~0.offset := main_#t~malloc9.base, main_#t~malloc9.offset;call write~int(0, main_~nondetString1~0.base, main_~nondetString1~0.offset + (main_~length1~0 - 1), 1);call write~int(0, main_~nondetString2~0.base, main_~nondetString2~0.offset + (main_~length2~0 - 1), 1);cstrpbrk_#in~s1.base, cstrpbrk_#in~s1.offset, cstrpbrk_#in~s2.base, cstrpbrk_#in~s2.offset := main_~nondetString1~0.base, main_~nondetString1~0.offset, main_~nondetString2~0.base, main_~nondetString2~0.offset;havoc cstrpbrk_#res.base, cstrpbrk_#res.offset;havoc cstrpbrk_#t~post4.base, cstrpbrk_#t~post4.offset, cstrpbrk_#t~mem5, cstrpbrk_#t~post2.base, cstrpbrk_#t~post2.offset, cstrpbrk_#t~mem3, cstrpbrk_~s1.base, cstrpbrk_~s1.offset, cstrpbrk_~s2.base, cstrpbrk_~s2.offset, cstrpbrk_~scanp~0.base, cstrpbrk_~scanp~0.offset, cstrpbrk_~c~0, cstrpbrk_~sc~0;cstrpbrk_~s1.base, cstrpbrk_~s1.offset := cstrpbrk_#in~s1.base, cstrpbrk_#in~s1.offset;cstrpbrk_~s2.base, cstrpbrk_~s2.offset := cstrpbrk_#in~s2.base, cstrpbrk_#in~s2.offset;havoc cstrpbrk_~scanp~0.base, cstrpbrk_~scanp~0.offset;havoc cstrpbrk_~c~0;havoc cstrpbrk_~sc~0; 428#L553-4 cstrpbrk_#t~post2.base, cstrpbrk_#t~post2.offset := cstrpbrk_~s1.base, cstrpbrk_~s1.offset;cstrpbrk_~s1.base, cstrpbrk_~s1.offset := cstrpbrk_#t~post2.base, 1 + cstrpbrk_#t~post2.offset;call cstrpbrk_#t~mem3 := read~int(cstrpbrk_#t~post2.base, cstrpbrk_#t~post2.offset, 1);cstrpbrk_~c~0 := cstrpbrk_#t~mem3; 429#L552-1 assume !!(0 != cstrpbrk_~c~0);havoc cstrpbrk_#t~post2.base, cstrpbrk_#t~post2.offset;havoc cstrpbrk_#t~mem3;cstrpbrk_~scanp~0.base, cstrpbrk_~scanp~0.offset := cstrpbrk_~s2.base, cstrpbrk_~s2.offset; 421#L553-3 cstrpbrk_#t~post4.base, cstrpbrk_#t~post4.offset := cstrpbrk_~scanp~0.base, cstrpbrk_~scanp~0.offset;cstrpbrk_~scanp~0.base, cstrpbrk_~scanp~0.offset := cstrpbrk_#t~post4.base, 1 + cstrpbrk_#t~post4.offset;call cstrpbrk_#t~mem5 := read~int(cstrpbrk_#t~post4.base, cstrpbrk_#t~post4.offset, 1);cstrpbrk_~sc~0 := cstrpbrk_#t~mem5; 422#L553-1 assume !!(0 != cstrpbrk_~sc~0);havoc cstrpbrk_#t~post4.base, cstrpbrk_#t~post4.offset;havoc cstrpbrk_#t~mem5; 426#L554 assume !(cstrpbrk_~sc~0 == cstrpbrk_~c~0); 432#L553-3 cstrpbrk_#t~post4.base, cstrpbrk_#t~post4.offset := cstrpbrk_~scanp~0.base, cstrpbrk_~scanp~0.offset;cstrpbrk_~scanp~0.base, cstrpbrk_~scanp~0.offset := cstrpbrk_#t~post4.base, 1 + cstrpbrk_#t~post4.offset;call cstrpbrk_#t~mem5 := read~int(cstrpbrk_#t~post4.base, cstrpbrk_#t~post4.offset, 1);cstrpbrk_~sc~0 := cstrpbrk_#t~mem5; 433#L553-1 assume !(0 != cstrpbrk_~sc~0);havoc cstrpbrk_#t~post4.base, cstrpbrk_#t~post4.offset;havoc cstrpbrk_#t~mem5; 430#L553-4 cstrpbrk_#t~post2.base, cstrpbrk_#t~post2.offset := cstrpbrk_~s1.base, cstrpbrk_~s1.offset;cstrpbrk_~s1.base, cstrpbrk_~s1.offset := cstrpbrk_#t~post2.base, 1 + cstrpbrk_#t~post2.offset;call cstrpbrk_#t~mem3 := read~int(cstrpbrk_#t~post2.base, cstrpbrk_#t~post2.offset, 1);cstrpbrk_~c~0 := cstrpbrk_#t~mem3; 431#L552-1 assume !!(0 != cstrpbrk_~c~0);havoc cstrpbrk_#t~post2.base, cstrpbrk_#t~post2.offset;havoc cstrpbrk_#t~mem3;cstrpbrk_~scanp~0.base, cstrpbrk_~scanp~0.offset := cstrpbrk_~s2.base, cstrpbrk_~s2.offset; 419#L553-3 [2021-11-02 22:09:47,203 INFO L793 eck$LassoCheckResult]: Loop: 419#L553-3 cstrpbrk_#t~post4.base, cstrpbrk_#t~post4.offset := cstrpbrk_~scanp~0.base, cstrpbrk_~scanp~0.offset;cstrpbrk_~scanp~0.base, cstrpbrk_~scanp~0.offset := cstrpbrk_#t~post4.base, 1 + cstrpbrk_#t~post4.offset;call cstrpbrk_#t~mem5 := read~int(cstrpbrk_#t~post4.base, cstrpbrk_#t~post4.offset, 1);cstrpbrk_~sc~0 := cstrpbrk_#t~mem5; 420#L553-1 assume !!(0 != cstrpbrk_~sc~0);havoc cstrpbrk_#t~post4.base, cstrpbrk_#t~post4.offset;havoc cstrpbrk_#t~mem5; 425#L554 assume !(cstrpbrk_~sc~0 == cstrpbrk_~c~0); 419#L553-3 [2021-11-02 22:09:47,203 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-02 22:09:47,203 INFO L85 PathProgramCache]: Analyzing trace with hash 1095399647, now seen corresponding path program 2 times [2021-11-02 22:09:47,204 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-02 22:09:47,204 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [427221107] [2021-11-02 22:09:47,204 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-02 22:09:47,204 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-02 22:09:47,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-02 22:09:47,224 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-02 22:09:47,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-02 22:09:47,249 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-11-02 22:09:47,249 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-02 22:09:47,250 INFO L85 PathProgramCache]: Analyzing trace with hash 58753, now seen corresponding path program 3 times [2021-11-02 22:09:47,250 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-02 22:09:47,250 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1335036868] [2021-11-02 22:09:47,250 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-02 22:09:47,250 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-02 22:09:47,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-02 22:09:47,255 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-02 22:09:47,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-02 22:09:47,260 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-11-02 22:09:47,261 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-02 22:09:47,261 INFO L85 PathProgramCache]: Analyzing trace with hash -110602269, now seen corresponding path program 3 times [2021-11-02 22:09:47,262 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-02 22:09:47,262 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [956194113] [2021-11-02 22:09:47,262 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-02 22:09:47,262 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-02 22:09:47,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-02 22:09:47,299 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-02 22:09:47,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-02 22:09:47,352 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-11-02 22:09:47,355 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a86a182-eac0-46df-a588-cd1528836e48/bin/uautomizer-tBqnrhUYjU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (27)] Forceful destruction successful, exit code 0 [2021-11-02 22:09:48,822 INFO L210 LassoAnalysis]: Preferences: [2021-11-02 22:09:48,822 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-11-02 22:09:48,822 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-11-02 22:09:48,822 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-11-02 22:09:48,822 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2021-11-02 22:09:48,823 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-02 22:09:48,823 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-11-02 22:09:48,823 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-11-02 22:09:48,823 INFO L133 ssoRankerPreferences]: Filename of dumped script: openbsd_cstrpbrk-alloca-1.i_Iteration5_Lasso [2021-11-02 22:09:48,823 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-11-02 22:09:48,823 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-11-02 22:09:48,828 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-02 22:09:48,831 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-02 22:09:48,834 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-02 22:09:48,836 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-02 22:09:48,839 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-02 22:09:48,842 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-02 22:09:48,845 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-02 22:09:48,848 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-02 22:09:49,515 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-02 22:09:49,519 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-02 22:09:49,521 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-02 22:09:49,524 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-02 22:09:49,527 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-02 22:09:49,530 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-02 22:09:49,534 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-02 22:09:49,538 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-02 22:09:49,541 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-02 22:09:49,544 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-02 22:09:49,547 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-02 22:09:50,704 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-11-02 22:09:50,704 INFO L490 LassoAnalysis]: Using template 'affine'. [2021-11-02 22:09:50,705 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-02 22:09:50,705 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a86a182-eac0-46df-a588-cd1528836e48/bin/uautomizer-tBqnrhUYjU/z3 [2021-11-02 22:09:50,723 INFO L229 MonitoredProcess]: Starting monitored process 29 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a86a182-eac0-46df-a588-cd1528836e48/bin/uautomizer-tBqnrhUYjU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-02 22:09:50,725 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a86a182-eac0-46df-a588-cd1528836e48/bin/uautomizer-tBqnrhUYjU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (29)] Waiting until timeout for monitored process [2021-11-02 22:09:50,725 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-11-02 22:09:50,734 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-02 22:09:50,734 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-11-02 22:09:50,734 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-02 22:09:50,735 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-02 22:09:50,735 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-02 22:09:50,735 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-11-02 22:09:50,735 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-11-02 22:09:50,739 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-11-02 22:09:50,764 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a86a182-eac0-46df-a588-cd1528836e48/bin/uautomizer-tBqnrhUYjU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (29)] Forceful destruction successful, exit code 0 [2021-11-02 22:09:50,764 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-02 22:09:50,764 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a86a182-eac0-46df-a588-cd1528836e48/bin/uautomizer-tBqnrhUYjU/z3 [2021-11-02 22:09:50,765 INFO L229 MonitoredProcess]: Starting monitored process 30 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a86a182-eac0-46df-a588-cd1528836e48/bin/uautomizer-tBqnrhUYjU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-02 22:09:50,766 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a86a182-eac0-46df-a588-cd1528836e48/bin/uautomizer-tBqnrhUYjU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (30)] Waiting until timeout for monitored process [2021-11-02 22:09:50,767 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-11-02 22:09:50,775 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-02 22:09:50,775 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-11-02 22:09:50,775 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-02 22:09:50,775 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-02 22:09:50,775 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-02 22:09:50,776 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-11-02 22:09:50,776 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-11-02 22:09:50,807 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-11-02 22:09:50,849 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a86a182-eac0-46df-a588-cd1528836e48/bin/uautomizer-tBqnrhUYjU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (30)] Forceful destruction successful, exit code 0 [2021-11-02 22:09:50,849 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-02 22:09:50,850 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a86a182-eac0-46df-a588-cd1528836e48/bin/uautomizer-tBqnrhUYjU/z3 [2021-11-02 22:09:50,851 INFO L229 MonitoredProcess]: Starting monitored process 31 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a86a182-eac0-46df-a588-cd1528836e48/bin/uautomizer-tBqnrhUYjU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-02 22:09:50,860 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-11-02 22:09:50,872 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-02 22:09:50,872 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-11-02 22:09:50,872 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-02 22:09:50,872 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-02 22:09:50,872 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-02 22:09:50,873 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-11-02 22:09:50,873 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-11-02 22:09:50,875 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a86a182-eac0-46df-a588-cd1528836e48/bin/uautomizer-tBqnrhUYjU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (31)] Waiting until timeout for monitored process [2021-11-02 22:09:50,887 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-11-02 22:09:50,927 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a86a182-eac0-46df-a588-cd1528836e48/bin/uautomizer-tBqnrhUYjU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (31)] Forceful destruction successful, exit code 0 [2021-11-02 22:09:50,927 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-02 22:09:50,927 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a86a182-eac0-46df-a588-cd1528836e48/bin/uautomizer-tBqnrhUYjU/z3 [2021-11-02 22:09:50,929 INFO L229 MonitoredProcess]: Starting monitored process 32 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a86a182-eac0-46df-a588-cd1528836e48/bin/uautomizer-tBqnrhUYjU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-02 22:09:50,931 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-11-02 22:09:50,942 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-02 22:09:50,942 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-11-02 22:09:50,942 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-02 22:09:50,943 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-02 22:09:50,943 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-02 22:09:50,943 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-11-02 22:09:50,943 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-11-02 22:09:50,945 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a86a182-eac0-46df-a588-cd1528836e48/bin/uautomizer-tBqnrhUYjU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (32)] Waiting until timeout for monitored process [2021-11-02 22:09:50,955 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-11-02 22:09:50,999 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a86a182-eac0-46df-a588-cd1528836e48/bin/uautomizer-tBqnrhUYjU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (32)] Forceful destruction successful, exit code 0 [2021-11-02 22:09:51,000 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-02 22:09:51,000 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a86a182-eac0-46df-a588-cd1528836e48/bin/uautomizer-tBqnrhUYjU/z3 [2021-11-02 22:09:51,001 INFO L229 MonitoredProcess]: Starting monitored process 33 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a86a182-eac0-46df-a588-cd1528836e48/bin/uautomizer-tBqnrhUYjU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-02 22:09:51,005 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-11-02 22:09:51,015 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-02 22:09:51,015 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-02 22:09:51,015 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-02 22:09:51,015 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-02 22:09:51,017 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-11-02 22:09:51,017 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-11-02 22:09:51,021 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a86a182-eac0-46df-a588-cd1528836e48/bin/uautomizer-tBqnrhUYjU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (33)] Waiting until timeout for monitored process [2021-11-02 22:09:51,031 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-11-02 22:09:51,060 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a86a182-eac0-46df-a588-cd1528836e48/bin/uautomizer-tBqnrhUYjU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (33)] Ended with exit code 0 [2021-11-02 22:09:51,060 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-02 22:09:51,060 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a86a182-eac0-46df-a588-cd1528836e48/bin/uautomizer-tBqnrhUYjU/z3 [2021-11-02 22:09:51,067 INFO L229 MonitoredProcess]: Starting monitored process 34 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a86a182-eac0-46df-a588-cd1528836e48/bin/uautomizer-tBqnrhUYjU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-02 22:09:51,067 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a86a182-eac0-46df-a588-cd1528836e48/bin/uautomizer-tBqnrhUYjU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (34)] Waiting until timeout for monitored process [2021-11-02 22:09:51,068 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-11-02 22:09:51,077 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-02 22:09:51,077 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-11-02 22:09:51,077 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-02 22:09:51,077 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-02 22:09:51,077 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-02 22:09:51,078 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-11-02 22:09:51,078 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-11-02 22:09:51,079 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-11-02 22:09:51,104 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a86a182-eac0-46df-a588-cd1528836e48/bin/uautomizer-tBqnrhUYjU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (34)] Forceful destruction successful, exit code 0 [2021-11-02 22:09:51,104 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-02 22:09:51,104 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a86a182-eac0-46df-a588-cd1528836e48/bin/uautomizer-tBqnrhUYjU/z3 [2021-11-02 22:09:51,106 INFO L229 MonitoredProcess]: Starting monitored process 35 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a86a182-eac0-46df-a588-cd1528836e48/bin/uautomizer-tBqnrhUYjU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-02 22:09:51,108 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a86a182-eac0-46df-a588-cd1528836e48/bin/uautomizer-tBqnrhUYjU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (35)] Waiting until timeout for monitored process [2021-11-02 22:09:51,108 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-11-02 22:09:51,117 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-02 22:09:51,117 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-11-02 22:09:51,118 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-02 22:09:51,118 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-02 22:09:51,118 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-02 22:09:51,118 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-11-02 22:09:51,118 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-11-02 22:09:51,119 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-11-02 22:09:51,143 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a86a182-eac0-46df-a588-cd1528836e48/bin/uautomizer-tBqnrhUYjU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (35)] Ended with exit code 0 [2021-11-02 22:09:51,143 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-02 22:09:51,143 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a86a182-eac0-46df-a588-cd1528836e48/bin/uautomizer-tBqnrhUYjU/z3 [2021-11-02 22:09:51,144 INFO L229 MonitoredProcess]: Starting monitored process 36 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a86a182-eac0-46df-a588-cd1528836e48/bin/uautomizer-tBqnrhUYjU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-02 22:09:51,146 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a86a182-eac0-46df-a588-cd1528836e48/bin/uautomizer-tBqnrhUYjU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (36)] Waiting until timeout for monitored process [2021-11-02 22:09:51,146 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 [2021-11-02 22:09:51,154 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-02 22:09:51,154 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-02 22:09:51,154 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-02 22:09:51,155 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-02 22:09:51,156 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-11-02 22:09:51,156 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-11-02 22:09:51,159 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-11-02 22:09:51,182 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a86a182-eac0-46df-a588-cd1528836e48/bin/uautomizer-tBqnrhUYjU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (36)] Forceful destruction successful, exit code 0 [2021-11-02 22:09:51,182 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-02 22:09:51,182 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a86a182-eac0-46df-a588-cd1528836e48/bin/uautomizer-tBqnrhUYjU/z3 [2021-11-02 22:09:51,183 INFO L229 MonitoredProcess]: Starting monitored process 37 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a86a182-eac0-46df-a588-cd1528836e48/bin/uautomizer-tBqnrhUYjU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-02 22:09:51,192 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a86a182-eac0-46df-a588-cd1528836e48/bin/uautomizer-tBqnrhUYjU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (37)] Waiting until timeout for monitored process [2021-11-02 22:09:51,194 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-11-02 22:09:51,203 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-02 22:09:51,203 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-02 22:09:51,203 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-02 22:09:51,203 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-02 22:09:51,221 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-11-02 22:09:51,221 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-11-02 22:09:51,240 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2021-11-02 22:09:51,261 INFO L443 ModelExtractionUtils]: Simplification made 5 calls to the SMT solver. [2021-11-02 22:09:51,261 INFO L444 ModelExtractionUtils]: 35 out of 49 variables were initially zero. Simplification set additionally 11 variables to zero. [2021-11-02 22:09:51,262 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-02 22:09:51,262 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a86a182-eac0-46df-a588-cd1528836e48/bin/uautomizer-tBqnrhUYjU/z3 [2021-11-02 22:09:51,262 INFO L229 MonitoredProcess]: Starting monitored process 38 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a86a182-eac0-46df-a588-cd1528836e48/bin/uautomizer-tBqnrhUYjU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-02 22:09:51,264 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a86a182-eac0-46df-a588-cd1528836e48/bin/uautomizer-tBqnrhUYjU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (38)] Waiting until timeout for monitored process [2021-11-02 22:09:51,264 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2021-11-02 22:09:51,274 INFO L438 nArgumentSynthesizer]: Removed 2 redundant supporting invariants from a total of 2. [2021-11-02 22:09:51,274 INFO L513 LassoAnalysis]: Proved termination. [2021-11-02 22:09:51,275 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(v_rep(select #length ULTIMATE.start_cstrpbrk_~scanp~0.base)_3, ULTIMATE.start_cstrpbrk_~scanp~0.offset) = 1*v_rep(select #length ULTIMATE.start_cstrpbrk_~scanp~0.base)_3 - 1*ULTIMATE.start_cstrpbrk_~scanp~0.offset Supporting invariants [] [2021-11-02 22:09:51,299 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a86a182-eac0-46df-a588-cd1528836e48/bin/uautomizer-tBqnrhUYjU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (37)] Forceful destruction successful, exit code 0 [2021-11-02 22:09:51,412 INFO L297 tatePredicateManager]: 30 out of 30 supporting invariants were superfluous and have been removed [2021-11-02 22:09:51,434 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-02 22:09:51,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-02 22:09:51,467 INFO L263 TraceCheckSpWp]: Trace formula consists of 139 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-02 22:09:51,469 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-02 22:09:51,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-02 22:09:51,525 INFO L263 TraceCheckSpWp]: Trace formula consists of 20 conjuncts, 9 conjunts are in the unsatisfiable core [2021-11-02 22:09:51,526 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-02 22:09:51,566 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-02 22:09:51,567 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates [2021-11-02 22:09:51,567 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 17 states and 21 transitions. cyclomatic complexity: 6 Second operand has 3 states, 3 states have (on average 5.0) internal successors, (15), 3 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 22:09:51,581 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 17 states and 21 transitions. cyclomatic complexity: 6. Second operand has 3 states, 3 states have (on average 5.0) internal successors, (15), 3 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 28 states and 35 transitions. Complement of second has 5 states. [2021-11-02 22:09:51,582 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 3 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2021-11-02 22:09:51,582 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 5.0) internal successors, (15), 3 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 22:09:51,582 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 15 transitions. [2021-11-02 22:09:51,583 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 15 transitions. Stem has 14 letters. Loop has 3 letters. [2021-11-02 22:09:51,583 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-11-02 22:09:51,583 INFO L639 RefineBuchi]: Bad chosen interpolant automaton: word not accepted [2021-11-02 22:09:51,597 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-02 22:09:51,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-02 22:09:51,631 INFO L263 TraceCheckSpWp]: Trace formula consists of 139 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-02 22:09:51,632 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-02 22:09:51,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-02 22:09:51,689 INFO L263 TraceCheckSpWp]: Trace formula consists of 20 conjuncts, 9 conjunts are in the unsatisfiable core [2021-11-02 22:09:51,690 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-02 22:09:51,730 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-02 22:09:51,731 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and with honda bouncer for loop.1 stem predicates 2 loop predicates [2021-11-02 22:09:51,731 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 17 states and 21 transitions. cyclomatic complexity: 6 Second operand has 3 states, 3 states have (on average 5.0) internal successors, (15), 3 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 22:09:51,753 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 17 states and 21 transitions. cyclomatic complexity: 6. Second operand has 3 states, 3 states have (on average 5.0) internal successors, (15), 3 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 29 states and 36 transitions. Complement of second has 5 states. [2021-11-02 22:09:51,754 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 3 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2021-11-02 22:09:51,754 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 5.0) internal successors, (15), 3 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 22:09:51,755 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 14 transitions. [2021-11-02 22:09:51,755 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 14 transitions. Stem has 14 letters. Loop has 3 letters. [2021-11-02 22:09:51,755 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-11-02 22:09:51,756 INFO L639 RefineBuchi]: Bad chosen interpolant automaton: word not accepted [2021-11-02 22:09:51,771 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-02 22:09:51,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-02 22:09:51,806 INFO L263 TraceCheckSpWp]: Trace formula consists of 139 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-02 22:09:51,807 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-02 22:09:51,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-02 22:09:51,864 INFO L263 TraceCheckSpWp]: Trace formula consists of 20 conjuncts, 9 conjunts are in the unsatisfiable core [2021-11-02 22:09:51,864 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-02 22:09:51,904 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-02 22:09:51,904 INFO L152 lantAutomatonBouncer]: Defining Buchi interpolant automaton with scrooge nondeterminism in stemwith honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates [2021-11-02 22:09:51,905 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 17 states and 21 transitions. cyclomatic complexity: 6 Second operand has 3 states, 3 states have (on average 5.0) internal successors, (15), 3 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 22:09:51,920 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 17 states and 21 transitions. cyclomatic complexity: 6. Second operand has 3 states, 3 states have (on average 5.0) internal successors, (15), 3 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 24 states and 29 transitions. Complement of second has 4 states. [2021-11-02 22:09:51,921 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 3 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2021-11-02 22:09:51,921 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 5.0) internal successors, (15), 3 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 22:09:51,922 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 20 transitions. [2021-11-02 22:09:51,922 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 20 transitions. Stem has 14 letters. Loop has 3 letters. [2021-11-02 22:09:51,923 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-11-02 22:09:51,923 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 20 transitions. Stem has 17 letters. Loop has 3 letters. [2021-11-02 22:09:51,923 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-11-02 22:09:51,923 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 20 transitions. Stem has 14 letters. Loop has 6 letters. [2021-11-02 22:09:51,924 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-11-02 22:09:51,924 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 24 states and 29 transitions. [2021-11-02 22:09:51,925 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2021-11-02 22:09:51,925 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 24 states to 0 states and 0 transitions. [2021-11-02 22:09:51,926 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2021-11-02 22:09:51,926 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2021-11-02 22:09:51,926 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2021-11-02 22:09:51,926 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-11-02 22:09:51,926 INFO L681 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-11-02 22:09:51,926 INFO L704 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-11-02 22:09:51,926 INFO L587 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-11-02 22:09:51,927 INFO L425 BuchiCegarLoop]: ======== Iteration 6============ [2021-11-02 22:09:51,927 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2021-11-02 22:09:51,927 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2021-11-02 22:09:51,927 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2021-11-02 22:09:51,933 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 02.11 10:09:51 BoogieIcfgContainer [2021-11-02 22:09:51,933 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2021-11-02 22:09:51,934 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-11-02 22:09:51,934 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-11-02 22:09:51,934 INFO L275 PluginConnector]: Witness Printer initialized [2021-11-02 22:09:51,935 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.11 10:09:26" (3/4) ... [2021-11-02 22:09:51,937 INFO L140 WitnessPrinter]: No result that supports witness generation found [2021-11-02 22:09:51,937 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-11-02 22:09:51,939 INFO L168 Benchmark]: Toolchain (without parser) took 26943.68 ms. Allocated memory was 115.3 MB in the beginning and 167.8 MB in the end (delta: 52.4 MB). Free memory was 81.2 MB in the beginning and 75.2 MB in the end (delta: 6.0 MB). Peak memory consumption was 56.9 MB. Max. memory is 16.1 GB. [2021-11-02 22:09:51,939 INFO L168 Benchmark]: CDTParser took 0.35 ms. Allocated memory is still 115.3 MB. Free memory is still 70.3 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-11-02 22:09:51,940 INFO L168 Benchmark]: CACSL2BoogieTranslator took 589.61 ms. Allocated memory is still 115.3 MB. Free memory was 80.9 MB in the beginning and 83.8 MB in the end (delta: -2.9 MB). Peak memory consumption was 6.3 MB. Max. memory is 16.1 GB. [2021-11-02 22:09:51,940 INFO L168 Benchmark]: Boogie Procedure Inliner took 72.21 ms. Allocated memory is still 115.3 MB. Free memory was 83.8 MB in the beginning and 81.7 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-11-02 22:09:51,941 INFO L168 Benchmark]: Boogie Preprocessor took 47.50 ms. Allocated memory is still 115.3 MB. Free memory was 81.7 MB in the beginning and 80.4 MB in the end (delta: 1.3 MB). There was no memory consumed. Max. memory is 16.1 GB. [2021-11-02 22:09:51,941 INFO L168 Benchmark]: RCFGBuilder took 387.40 ms. Allocated memory is still 115.3 MB. Free memory was 80.4 MB in the beginning and 70.3 MB in the end (delta: 10.1 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2021-11-02 22:09:51,942 INFO L168 Benchmark]: BuchiAutomizer took 25833.32 ms. Allocated memory was 115.3 MB in the beginning and 167.8 MB in the end (delta: 52.4 MB). Free memory was 70.0 MB in the beginning and 75.2 MB in the end (delta: -5.2 MB). Peak memory consumption was 49.1 MB. Max. memory is 16.1 GB. [2021-11-02 22:09:51,942 INFO L168 Benchmark]: Witness Printer took 3.62 ms. Allocated memory is still 167.8 MB. Free memory is still 75.2 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-11-02 22:09:51,947 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.35 ms. Allocated memory is still 115.3 MB. Free memory is still 70.3 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 589.61 ms. Allocated memory is still 115.3 MB. Free memory was 80.9 MB in the beginning and 83.8 MB in the end (delta: -2.9 MB). Peak memory consumption was 6.3 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 72.21 ms. Allocated memory is still 115.3 MB. Free memory was 83.8 MB in the beginning and 81.7 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 47.50 ms. Allocated memory is still 115.3 MB. Free memory was 81.7 MB in the beginning and 80.4 MB in the end (delta: 1.3 MB). There was no memory consumed. Max. memory is 16.1 GB. * RCFGBuilder took 387.40 ms. Allocated memory is still 115.3 MB. Free memory was 80.4 MB in the beginning and 70.3 MB in the end (delta: 10.1 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * BuchiAutomizer took 25833.32 ms. Allocated memory was 115.3 MB in the beginning and 167.8 MB in the end (delta: 52.4 MB). Free memory was 70.0 MB in the beginning and 75.2 MB in the end (delta: -5.2 MB). Peak memory consumption was 49.1 MB. Max. memory is 16.1 GB. * Witness Printer took 3.62 ms. Allocated memory is still 167.8 MB. Free memory is still 75.2 MB. There was no memory consumed. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 5 terminating modules (2 trivial, 2 deterministic, 1 nondeterministic). One deterministic module has affine ranking function -1 * s1 + unknown-#length-unknown[__builtin_alloca (length1 * sizeof(char))] and consists of 3 locations. One deterministic module has affine ranking function unknown-#length-unknown[__builtin_alloca (length2 * sizeof(char))] + -1 * scanp and consists of 4 locations. One nondeterministic module has affine ranking function unknown-#length-unknown[scanp] + -1 * scanp and consists of 3 locations. 2 modules have a trivial ranking function, the largest among these consists of 10 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 25.7s and 6 iterations. TraceHistogramMax:2. Analysis of lassos took 24.2s. Construction of modules took 0.1s. Büchi inclusion checks took 1.1s. Highest rank in rank-based complementation 3. Minimization of det autom 2. Minimization of nondet autom 3. Automata minimization 0.0s AutomataMinimizationTime, 4 MinimizatonAttempts, 14 StatesRemovedByMinimization, 3 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 17 states and ocurred in iteration 4. Nontrivial modules had stage [2, 0, 1, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 92 SDtfs, 84 SDslu, 55 SDs, 0 SdLazy, 102 SolverSat, 16 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time LassoAnalysisResults: nont0 unkn0 SFLI1 SFLT0 conc1 concLT0 SILN0 SILU0 SILI0 SILT0 lasso3 LassoPreprocessingBenchmarks: Lassos: inital220 mio100 ax108 hnf99 lsp89 ukn78 mio100 lsp32 div100 bol100 ite100 ukn100 eq196 hnf87 smp100 dnf235 smp90 tf100 neg94 sie116 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 143ms VariablesStem: 2 VariablesLoop: 3 DisjunctsStem: 2 DisjunctsLoop: 4 SupportingInvariants: 8 MotzkinApplications: 56 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 0 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 0 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.0s - TerminationAnalysisResult: Termination proven Buchi Automizer proved that your program is terminating RESULT: Ultimate proved your program to be correct! [2021-11-02 22:09:51,982 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a86a182-eac0-46df-a588-cd1528836e48/bin/uautomizer-tBqnrhUYjU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (38)] Forceful destruction successful, exit code 0 [2021-11-02 22:09:52,192 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a86a182-eac0-46df-a588-cd1528836e48/bin/uautomizer-tBqnrhUYjU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (28)] Ended with exit code 0 [2021-11-02 22:09:52,374 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a86a182-eac0-46df-a588-cd1528836e48/bin/uautomizer-tBqnrhUYjU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE