./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/termination-15/cstrpbrk_malloc.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version b2eff8ba Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce25ae1e-5c3b-43b6-9ab8-eba657853061/bin/uautomizer-GMMbpWq8iD/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce25ae1e-5c3b-43b6-9ab8-eba657853061/bin/uautomizer-GMMbpWq8iD/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce25ae1e-5c3b-43b6-9ab8-eba657853061/bin/uautomizer-GMMbpWq8iD/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce25ae1e-5c3b-43b6-9ab8-eba657853061/bin/uautomizer-GMMbpWq8iD/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/termination-15/cstrpbrk_malloc.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce25ae1e-5c3b-43b6-9ab8-eba657853061/bin/uautomizer-GMMbpWq8iD/config/svcomp-Termination-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce25ae1e-5c3b-43b6-9ab8-eba657853061/bin/uautomizer-GMMbpWq8iD --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(F end) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 8edf581f64d166b4408dcbe4d1c200d90abc56f787561a55f3b270257b320de9 ..................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.2.1-dev-b2eff8b [2021-10-28 22:53:01,594 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-28 22:53:01,596 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-28 22:53:01,659 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-28 22:53:01,660 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-28 22:53:01,662 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-28 22:53:01,665 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-28 22:53:01,668 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-28 22:53:01,670 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-28 22:53:01,672 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-28 22:53:01,674 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-28 22:53:01,676 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-28 22:53:01,676 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-28 22:53:01,678 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-28 22:53:01,680 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-28 22:53:01,682 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-28 22:53:01,684 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-28 22:53:01,686 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-28 22:53:01,689 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-28 22:53:01,692 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-28 22:53:01,695 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-28 22:53:01,697 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-28 22:53:01,699 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-28 22:53:01,700 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-28 22:53:01,705 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-28 22:53:01,706 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-28 22:53:01,706 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-28 22:53:01,708 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-28 22:53:01,708 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-28 22:53:01,710 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-28 22:53:01,710 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-28 22:53:01,712 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-28 22:53:01,713 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-28 22:53:01,714 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-28 22:53:01,716 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-28 22:53:01,716 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-28 22:53:01,717 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-28 22:53:01,718 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-28 22:53:01,719 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-28 22:53:01,720 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-28 22:53:01,721 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-28 22:53:01,722 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce25ae1e-5c3b-43b6-9ab8-eba657853061/bin/uautomizer-GMMbpWq8iD/config/svcomp-Termination-64bit-Automizer_Default.epf [2021-10-28 22:53:01,751 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-28 22:53:01,752 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-28 22:53:01,752 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-10-28 22:53:01,752 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-10-28 22:53:01,754 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-10-28 22:53:01,754 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-10-28 22:53:01,754 INFO L138 SettingsManager]: * Use SBE=true [2021-10-28 22:53:01,755 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2021-10-28 22:53:01,755 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2021-10-28 22:53:01,755 INFO L138 SettingsManager]: * Use old map elimination=false [2021-10-28 22:53:01,755 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2021-10-28 22:53:01,756 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2021-10-28 22:53:01,756 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2021-10-28 22:53:01,756 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-28 22:53:01,757 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-10-28 22:53:01,757 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-28 22:53:01,757 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-28 22:53:01,758 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2021-10-28 22:53:01,758 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2021-10-28 22:53:01,758 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2021-10-28 22:53:01,758 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-28 22:53:01,759 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2021-10-28 22:53:01,759 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-28 22:53:01,759 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2021-10-28 22:53:01,760 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-28 22:53:01,760 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-10-28 22:53:01,760 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-28 22:53:01,760 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-10-28 22:53:01,761 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-28 22:53:01,762 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2021-10-28 22:53:01,762 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_ce25ae1e-5c3b-43b6-9ab8-eba657853061/bin/uautomizer-GMMbpWq8iD/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce25ae1e-5c3b-43b6-9ab8-eba657853061/bin/uautomizer-GMMbpWq8iD Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 8edf581f64d166b4408dcbe4d1c200d90abc56f787561a55f3b270257b320de9 [2021-10-28 22:53:02,015 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-28 22:53:02,065 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-28 22:53:02,069 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-28 22:53:02,070 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-28 22:53:02,071 INFO L275 PluginConnector]: CDTParser initialized [2021-10-28 22:53:02,073 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce25ae1e-5c3b-43b6-9ab8-eba657853061/bin/uautomizer-GMMbpWq8iD/../../sv-benchmarks/c/termination-15/cstrpbrk_malloc.i [2021-10-28 22:53:02,149 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce25ae1e-5c3b-43b6-9ab8-eba657853061/bin/uautomizer-GMMbpWq8iD/data/94028929e/76470425574d41dc990aa07fd75a8322/FLAG0fe6fff19 [2021-10-28 22:53:02,839 INFO L306 CDTParser]: Found 1 translation units. [2021-10-28 22:53:02,840 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce25ae1e-5c3b-43b6-9ab8-eba657853061/sv-benchmarks/c/termination-15/cstrpbrk_malloc.i [2021-10-28 22:53:02,852 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce25ae1e-5c3b-43b6-9ab8-eba657853061/bin/uautomizer-GMMbpWq8iD/data/94028929e/76470425574d41dc990aa07fd75a8322/FLAG0fe6fff19 [2021-10-28 22:53:03,141 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce25ae1e-5c3b-43b6-9ab8-eba657853061/bin/uautomizer-GMMbpWq8iD/data/94028929e/76470425574d41dc990aa07fd75a8322 [2021-10-28 22:53:03,144 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-28 22:53:03,146 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-28 22:53:03,148 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-28 22:53:03,149 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-28 22:53:03,153 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-28 22:53:03,154 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.10 10:53:03" (1/1) ... [2021-10-28 22:53:03,155 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4ebb09b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 10:53:03, skipping insertion in model container [2021-10-28 22:53:03,156 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.10 10:53:03" (1/1) ... [2021-10-28 22:53:03,165 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-28 22:53:03,208 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-28 22:53:03,693 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-28 22:53:03,703 INFO L203 MainTranslator]: Completed pre-run [2021-10-28 22:53:03,748 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-28 22:53:03,790 INFO L208 MainTranslator]: Completed translation [2021-10-28 22:53:03,791 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 10:53:03 WrapperNode [2021-10-28 22:53:03,791 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-28 22:53:03,793 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-28 22:53:03,793 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-28 22:53:03,793 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-28 22:53:03,802 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 10:53:03" (1/1) ... [2021-10-28 22:53:03,816 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 10:53:03" (1/1) ... [2021-10-28 22:53:03,838 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-28 22:53:03,839 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-28 22:53:03,839 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-28 22:53:03,839 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-28 22:53:03,847 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 10:53:03" (1/1) ... [2021-10-28 22:53:03,848 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 10:53:03" (1/1) ... [2021-10-28 22:53:03,850 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 10:53:03" (1/1) ... [2021-10-28 22:53:03,851 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 10:53:03" (1/1) ... [2021-10-28 22:53:03,856 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 10:53:03" (1/1) ... [2021-10-28 22:53:03,860 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 10:53:03" (1/1) ... [2021-10-28 22:53:03,861 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 10:53:03" (1/1) ... [2021-10-28 22:53:03,863 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-28 22:53:03,879 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-28 22:53:03,879 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-28 22:53:03,879 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-28 22:53:03,880 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 10:53:03" (1/1) ... [2021-10-28 22:53:03,889 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 22:53:03,902 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce25ae1e-5c3b-43b6-9ab8-eba657853061/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 22:53:03,918 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce25ae1e-5c3b-43b6-9ab8-eba657853061/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 22:53:03,932 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce25ae1e-5c3b-43b6-9ab8-eba657853061/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2021-10-28 22:53:03,964 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-10-28 22:53:03,964 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-10-28 22:53:03,965 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-10-28 22:53:03,965 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-10-28 22:53:03,965 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-28 22:53:03,965 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-28 22:53:04,203 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-28 22:53:04,204 INFO L299 CfgBuilder]: Removed 8 assume(true) statements. [2021-10-28 22:53:04,206 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.10 10:53:04 BoogieIcfgContainer [2021-10-28 22:53:04,206 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-28 22:53:04,208 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2021-10-28 22:53:04,208 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2021-10-28 22:53:04,212 INFO L275 PluginConnector]: BuchiAutomizer initialized [2021-10-28 22:53:04,213 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-10-28 22:53:04,214 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 28.10 10:53:03" (1/3) ... [2021-10-28 22:53:04,215 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@60acb4ae and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 28.10 10:53:04, skipping insertion in model container [2021-10-28 22:53:04,216 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-10-28 22:53:04,216 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 10:53:03" (2/3) ... [2021-10-28 22:53:04,216 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@60acb4ae and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 28.10 10:53:04, skipping insertion in model container [2021-10-28 22:53:04,217 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-10-28 22:53:04,217 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.10 10:53:04" (3/3) ... [2021-10-28 22:53:04,219 INFO L389 chiAutomizerObserver]: Analyzing ICFG cstrpbrk_malloc.i [2021-10-28 22:53:04,275 INFO L359 BuchiCegarLoop]: Interprodecural is true [2021-10-28 22:53:04,276 INFO L360 BuchiCegarLoop]: Hoare is false [2021-10-28 22:53:04,276 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2021-10-28 22:53:04,276 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2021-10-28 22:53:04,276 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-10-28 22:53:04,276 INFO L364 BuchiCegarLoop]: Difference is false [2021-10-28 22:53:04,277 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-10-28 22:53:04,277 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2021-10-28 22:53:04,304 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 18 states, 17 states have (on average 1.4705882352941178) internal successors, (25), 17 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 22:53:04,344 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 8 [2021-10-28 22:53:04,350 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-28 22:53:04,351 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-28 22:53:04,358 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1] [2021-10-28 22:53:04,358 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1] [2021-10-28 22:53:04,359 INFO L425 BuchiCegarLoop]: ======== Iteration 1============ [2021-10-28 22:53:04,359 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 18 states, 17 states have (on average 1.4705882352941178) internal successors, (25), 17 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 22:53:04,363 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 8 [2021-10-28 22:53:04,363 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-28 22:53:04,363 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-28 22:53:04,364 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1] [2021-10-28 22:53:04,365 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1] [2021-10-28 22:53:04,373 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~nondet213, main_#t~nondet214, main_#t~malloc215.base, main_#t~malloc215.offset, main_#t~malloc216.base, main_#t~malloc216.offset, main_#t~ret217.base, main_#t~ret217.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~nondet213;havoc main_#t~nondet213;main_~length2~0 := main_#t~nondet214;havoc main_#t~nondet214; 17#L382true assume !(main_~length1~0 < 1); 14#L382-2true assume !(main_~length2~0 < 1); 5#L385-1true call main_#t~malloc215.base, main_#t~malloc215.offset := #Ultimate.allocOnHeap(main_~length1~0);main_~nondetString1~0.base, main_~nondetString1~0.offset := main_#t~malloc215.base, main_#t~malloc215.offset;havoc main_#t~malloc215.base, main_#t~malloc215.offset;call main_#t~malloc216.base, main_#t~malloc216.offset := #Ultimate.allocOnHeap(main_~length2~0);main_~nondetString2~0.base, main_~nondetString2~0.offset := main_#t~malloc216.base, main_#t~malloc216.offset;havoc main_#t~malloc216.base, main_#t~malloc216.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~mem207, cstrpbrk_#t~post211.base, cstrpbrk_#t~post211.offset, cstrpbrk_#t~mem208, cstrpbrk_#t~mem209, cstrpbrk_#t~short210, cstrpbrk_#t~mem212, cstrpbrk_#t~post205.base, cstrpbrk_#t~post205.offset, cstrpbrk_#t~mem206, cstrpbrk_~s1.base, cstrpbrk_~s1.offset, cstrpbrk_~s2.base, cstrpbrk_~s2.offset, cstrpbrk_~sc1~0.base, cstrpbrk_~sc1~0.offset, cstrpbrk_~s~0.base, cstrpbrk_~s~0.offset, cstrpbrk_~c~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_~sc1~0.base, cstrpbrk_~sc1~0.offset;havoc cstrpbrk_~s~0.base, cstrpbrk_~s~0.offset;havoc cstrpbrk_~c~0;cstrpbrk_~sc1~0.base, cstrpbrk_~sc1~0.offset := cstrpbrk_~s1.base, cstrpbrk_~s1.offset; 9#L369-4true [2021-10-28 22:53:04,374 INFO L793 eck$LassoCheckResult]: Loop: 9#L369-4true call cstrpbrk_#t~mem206 := read~int(cstrpbrk_~sc1~0.base, cstrpbrk_~sc1~0.offset, 1); 16#L369-1true assume !!(0 != cstrpbrk_#t~mem206);havoc cstrpbrk_#t~mem206;cstrpbrk_~s~0.base, cstrpbrk_~s~0.offset := cstrpbrk_~s2.base, cstrpbrk_~s2.offset;call cstrpbrk_#t~mem207 := read~int(cstrpbrk_~sc1~0.base, cstrpbrk_~sc1~0.offset, 1);cstrpbrk_~c~0 := cstrpbrk_#t~mem207;havoc cstrpbrk_#t~mem207; 7#L372-5true assume !true; 6#L372-6true call cstrpbrk_#t~mem212 := read~int(cstrpbrk_~s~0.base, cstrpbrk_~s~0.offset, 1); 18#L374true assume !(cstrpbrk_#t~mem212 != cstrpbrk_~c~0);havoc cstrpbrk_#t~mem212; 10#L369-3true cstrpbrk_#t~post205.base, cstrpbrk_#t~post205.offset := cstrpbrk_~sc1~0.base, cstrpbrk_~sc1~0.offset;cstrpbrk_~sc1~0.base, cstrpbrk_~sc1~0.offset := cstrpbrk_#t~post205.base, 1 + cstrpbrk_#t~post205.offset;havoc cstrpbrk_#t~post205.base, cstrpbrk_#t~post205.offset; 9#L369-4true [2021-10-28 22:53:04,381 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 22:53:04,381 INFO L85 PathProgramCache]: Analyzing trace with hash 28695878, now seen corresponding path program 1 times [2021-10-28 22:53:04,416 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 22:53:04,416 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [238074106] [2021-10-28 22:53:04,417 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 22:53:04,418 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 22:53:04,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 22:53:04,628 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-28 22:53:04,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 22:53:04,711 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-28 22:53:04,724 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 22:53:04,725 INFO L85 PathProgramCache]: Analyzing trace with hash 1454917130, now seen corresponding path program 1 times [2021-10-28 22:53:04,725 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 22:53:04,726 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1205130334] [2021-10-28 22:53:04,727 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 22:53:04,727 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 22:53:04,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 22:53:04,825 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 22:53:04,826 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 22:53:04,827 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1205130334] [2021-10-28 22:53:04,828 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1205130334] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-28 22:53:04,829 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-28 22:53:04,829 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-10-28 22:53:04,830 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1997551434] [2021-10-28 22:53:04,836 INFO L808 eck$LassoCheckResult]: loop already infeasible [2021-10-28 22:53:04,838 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 22:53:04,861 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-10-28 22:53:04,863 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-10-28 22:53:04,865 INFO L87 Difference]: Start difference. First operand has 18 states, 17 states have (on average 1.4705882352941178) internal successors, (25), 17 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 2 states, 2 states have (on average 3.0) internal successors, (6), 2 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 22:53:04,878 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 22:53:04,879 INFO L93 Difference]: Finished difference Result 18 states and 23 transitions. [2021-10-28 22:53:04,879 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-10-28 22:53:04,881 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 18 states and 23 transitions. [2021-10-28 22:53:04,886 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 8 [2021-10-28 22:53:04,892 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 18 states to 13 states and 17 transitions. [2021-10-28 22:53:04,893 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 13 [2021-10-28 22:53:04,894 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 13 [2021-10-28 22:53:04,895 INFO L73 IsDeterministic]: Start isDeterministic. Operand 13 states and 17 transitions. [2021-10-28 22:53:04,895 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-28 22:53:04,896 INFO L681 BuchiCegarLoop]: Abstraction has 13 states and 17 transitions. [2021-10-28 22:53:04,915 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13 states and 17 transitions. [2021-10-28 22:53:04,925 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13 to 13. [2021-10-28 22:53:04,926 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13 states, 13 states have (on average 1.3076923076923077) internal successors, (17), 12 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 22:53:04,928 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 17 transitions. [2021-10-28 22:53:04,929 INFO L704 BuchiCegarLoop]: Abstraction has 13 states and 17 transitions. [2021-10-28 22:53:04,929 INFO L587 BuchiCegarLoop]: Abstraction has 13 states and 17 transitions. [2021-10-28 22:53:04,930 INFO L425 BuchiCegarLoop]: ======== Iteration 2============ [2021-10-28 22:53:04,930 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 13 states and 17 transitions. [2021-10-28 22:53:04,932 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 8 [2021-10-28 22:53:04,933 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-28 22:53:04,933 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-28 22:53:04,935 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1] [2021-10-28 22:53:04,935 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 22:53:04,935 INFO L791 eck$LassoCheckResult]: Stem: 44#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier; 45#L-1 havoc main_#res;havoc main_#t~nondet213, main_#t~nondet214, main_#t~malloc215.base, main_#t~malloc215.offset, main_#t~malloc216.base, main_#t~malloc216.offset, main_#t~ret217.base, main_#t~ret217.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~nondet213;havoc main_#t~nondet213;main_~length2~0 := main_#t~nondet214;havoc main_#t~nondet214; 52#L382 assume !(main_~length1~0 < 1); 56#L382-2 assume !(main_~length2~0 < 1); 46#L385-1 call main_#t~malloc215.base, main_#t~malloc215.offset := #Ultimate.allocOnHeap(main_~length1~0);main_~nondetString1~0.base, main_~nondetString1~0.offset := main_#t~malloc215.base, main_#t~malloc215.offset;havoc main_#t~malloc215.base, main_#t~malloc215.offset;call main_#t~malloc216.base, main_#t~malloc216.offset := #Ultimate.allocOnHeap(main_~length2~0);main_~nondetString2~0.base, main_~nondetString2~0.offset := main_#t~malloc216.base, main_#t~malloc216.offset;havoc main_#t~malloc216.base, main_#t~malloc216.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~mem207, cstrpbrk_#t~post211.base, cstrpbrk_#t~post211.offset, cstrpbrk_#t~mem208, cstrpbrk_#t~mem209, cstrpbrk_#t~short210, cstrpbrk_#t~mem212, cstrpbrk_#t~post205.base, cstrpbrk_#t~post205.offset, cstrpbrk_#t~mem206, cstrpbrk_~s1.base, cstrpbrk_~s1.offset, cstrpbrk_~s2.base, cstrpbrk_~s2.offset, cstrpbrk_~sc1~0.base, cstrpbrk_~sc1~0.offset, cstrpbrk_~s~0.base, cstrpbrk_~s~0.offset, cstrpbrk_~c~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_~sc1~0.base, cstrpbrk_~sc1~0.offset;havoc cstrpbrk_~s~0.base, cstrpbrk_~s~0.offset;havoc cstrpbrk_~c~0;cstrpbrk_~sc1~0.base, cstrpbrk_~sc1~0.offset := cstrpbrk_~s1.base, cstrpbrk_~s1.offset; 47#L369-4 [2021-10-28 22:53:04,936 INFO L793 eck$LassoCheckResult]: Loop: 47#L369-4 call cstrpbrk_#t~mem206 := read~int(cstrpbrk_~sc1~0.base, cstrpbrk_~sc1~0.offset, 1); 53#L369-1 assume !!(0 != cstrpbrk_#t~mem206);havoc cstrpbrk_#t~mem206;cstrpbrk_~s~0.base, cstrpbrk_~s~0.offset := cstrpbrk_~s2.base, cstrpbrk_~s2.offset;call cstrpbrk_#t~mem207 := read~int(cstrpbrk_~sc1~0.base, cstrpbrk_~sc1~0.offset, 1);cstrpbrk_~c~0 := cstrpbrk_#t~mem207;havoc cstrpbrk_#t~mem207; 50#L372-5 call cstrpbrk_#t~mem208 := read~int(cstrpbrk_~s~0.base, cstrpbrk_~s~0.offset, 1);cstrpbrk_#t~short210 := 0 != cstrpbrk_#t~mem208; 51#L372-1 assume cstrpbrk_#t~short210;call cstrpbrk_#t~mem209 := read~int(cstrpbrk_~s~0.base, cstrpbrk_~s~0.offset, 1);cstrpbrk_#t~short210 := cstrpbrk_#t~mem209 != (if cstrpbrk_~c~0 % 256 <= 127 then cstrpbrk_~c~0 % 256 else cstrpbrk_~c~0 % 256 - 256); 55#L372-3 assume !cstrpbrk_#t~short210;havoc cstrpbrk_#t~mem208;havoc cstrpbrk_#t~mem209;havoc cstrpbrk_#t~short210; 48#L372-6 call cstrpbrk_#t~mem212 := read~int(cstrpbrk_~s~0.base, cstrpbrk_~s~0.offset, 1); 49#L374 assume !(cstrpbrk_#t~mem212 != cstrpbrk_~c~0);havoc cstrpbrk_#t~mem212; 54#L369-3 cstrpbrk_#t~post205.base, cstrpbrk_#t~post205.offset := cstrpbrk_~sc1~0.base, cstrpbrk_~sc1~0.offset;cstrpbrk_~sc1~0.base, cstrpbrk_~sc1~0.offset := cstrpbrk_#t~post205.base, 1 + cstrpbrk_#t~post205.offset;havoc cstrpbrk_#t~post205.base, cstrpbrk_#t~post205.offset; 47#L369-4 [2021-10-28 22:53:04,940 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 22:53:04,940 INFO L85 PathProgramCache]: Analyzing trace with hash 28695878, now seen corresponding path program 2 times [2021-10-28 22:53:04,940 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 22:53:04,941 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [829185907] [2021-10-28 22:53:04,941 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 22:53:04,942 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 22:53:04,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 22:53:05,001 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-28 22:53:05,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 22:53:05,040 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-28 22:53:05,040 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 22:53:05,041 INFO L85 PathProgramCache]: Analyzing trace with hash 1927396657, now seen corresponding path program 1 times [2021-10-28 22:53:05,041 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 22:53:05,041 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1145286192] [2021-10-28 22:53:05,042 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 22:53:05,042 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 22:53:05,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 22:53:05,061 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-28 22:53:05,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 22:53:05,100 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-28 22:53:05,104 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 22:53:05,105 INFO L85 PathProgramCache]: Analyzing trace with hash -102988426, now seen corresponding path program 1 times [2021-10-28 22:53:05,105 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 22:53:05,105 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1840080890] [2021-10-28 22:53:05,106 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 22:53:05,106 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 22:53:05,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 22:53:05,172 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-28 22:53:05,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 22:53:05,226 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-28 22:53:06,368 INFO L210 LassoAnalysis]: Preferences: [2021-10-28 22:53:06,369 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-10-28 22:53:06,375 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-10-28 22:53:06,375 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-10-28 22:53:06,375 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2021-10-28 22:53:06,376 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 22:53:06,376 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-10-28 22:53:06,376 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-10-28 22:53:06,376 INFO L133 ssoRankerPreferences]: Filename of dumped script: cstrpbrk_malloc.i_Iteration2_Lasso [2021-10-28 22:53:06,376 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-10-28 22:53:06,377 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-10-28 22:53:06,422 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 22:53:06,429 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 22:53:06,431 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 22:53:06,434 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 22:53:06,439 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 22:53:06,442 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 22:53:06,444 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 22:53:06,888 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 22:53:06,891 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 22:53:06,893 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 22:53:06,895 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 22:53:06,897 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 22:53:06,900 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 22:53:06,902 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 22:53:06,904 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 22:53:06,907 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 22:53:06,910 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 22:53:06,912 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 22:53:06,914 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 22:53:06,921 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 22:53:06,924 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 22:53:06,926 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 22:53:06,928 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 22:53:06,931 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 22:53:07,717 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-10-28 22:53:07,726 INFO L490 LassoAnalysis]: Using template 'affine'. [2021-10-28 22:53:07,728 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 22:53:07,728 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce25ae1e-5c3b-43b6-9ab8-eba657853061/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 22:53:07,733 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce25ae1e-5c3b-43b6-9ab8-eba657853061/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 22:53:07,741 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 [2021-10-28 22:53:07,754 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 22:53:07,754 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 22:53:07,755 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 22:53:07,755 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 22:53:07,755 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 22:53:07,758 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-28 22:53:07,759 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 22:53:07,761 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce25ae1e-5c3b-43b6-9ab8-eba657853061/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Waiting until timeout for monitored process [2021-10-28 22:53:07,776 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 22:53:07,809 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce25ae1e-5c3b-43b6-9ab8-eba657853061/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Forceful destruction successful, exit code 0 [2021-10-28 22:53:07,809 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 22:53:07,810 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce25ae1e-5c3b-43b6-9ab8-eba657853061/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 22:53:07,811 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce25ae1e-5c3b-43b6-9ab8-eba657853061/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 22:53:07,817 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 22:53:07,827 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 22:53:07,828 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 22:53:07,828 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 22:53:07,828 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 22:53:07,828 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 22:53:07,829 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-28 22:53:07,829 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 22:53:07,831 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce25ae1e-5c3b-43b6-9ab8-eba657853061/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Waiting until timeout for monitored process [2021-10-28 22:53:07,844 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 22:53:07,879 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce25ae1e-5c3b-43b6-9ab8-eba657853061/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Forceful destruction successful, exit code 0 [2021-10-28 22:53:07,879 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 22:53:07,879 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce25ae1e-5c3b-43b6-9ab8-eba657853061/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 22:53:07,884 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce25ae1e-5c3b-43b6-9ab8-eba657853061/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 22:53:07,892 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 22:53:07,902 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 22:53:07,902 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 22:53:07,903 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 22:53:07,903 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 22:53:07,903 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 22:53:07,904 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-28 22:53:07,904 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 22:53:07,905 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce25ae1e-5c3b-43b6-9ab8-eba657853061/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Waiting until timeout for monitored process [2021-10-28 22:53:07,920 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 22:53:07,940 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce25ae1e-5c3b-43b6-9ab8-eba657853061/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Forceful destruction successful, exit code 0 [2021-10-28 22:53:07,941 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 22:53:07,941 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce25ae1e-5c3b-43b6-9ab8-eba657853061/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 22:53:07,941 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce25ae1e-5c3b-43b6-9ab8-eba657853061/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 22:53:07,942 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce25ae1e-5c3b-43b6-9ab8-eba657853061/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Waiting until timeout for monitored process [2021-10-28 22:53:07,943 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 22:53:07,951 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 22:53:07,951 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 22:53:07,951 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 22:53:07,951 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 22:53:07,955 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-28 22:53:07,955 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-28 22:53:07,958 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 22:53:07,979 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce25ae1e-5c3b-43b6-9ab8-eba657853061/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Forceful destruction successful, exit code 0 [2021-10-28 22:53:07,979 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 22:53:07,979 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce25ae1e-5c3b-43b6-9ab8-eba657853061/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 22:53:07,988 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce25ae1e-5c3b-43b6-9ab8-eba657853061/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 22:53:08,021 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 22:53:08,031 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 22:53:08,031 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 22:53:08,031 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 22:53:08,031 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 22:53:08,031 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 22:53:08,032 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-28 22:53:08,032 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 22:53:08,034 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce25ae1e-5c3b-43b6-9ab8-eba657853061/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Waiting until timeout for monitored process [2021-10-28 22:53:08,052 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 22:53:08,091 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce25ae1e-5c3b-43b6-9ab8-eba657853061/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Forceful destruction successful, exit code 0 [2021-10-28 22:53:08,091 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 22:53:08,091 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce25ae1e-5c3b-43b6-9ab8-eba657853061/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 22:53:08,093 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce25ae1e-5c3b-43b6-9ab8-eba657853061/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 22:53:08,098 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce25ae1e-5c3b-43b6-9ab8-eba657853061/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Waiting until timeout for monitored process [2021-10-28 22:53:08,098 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 22:53:08,107 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 22:53:08,108 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 22:53:08,108 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 22:53:08,108 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 22:53:08,108 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 22:53:08,109 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-28 22:53:08,109 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 22:53:08,131 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 22:53:08,167 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce25ae1e-5c3b-43b6-9ab8-eba657853061/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Forceful destruction successful, exit code 0 [2021-10-28 22:53:08,167 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 22:53:08,167 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce25ae1e-5c3b-43b6-9ab8-eba657853061/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 22:53:08,168 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce25ae1e-5c3b-43b6-9ab8-eba657853061/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 22:53:08,176 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 22:53:08,186 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 22:53:08,187 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 22:53:08,187 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 22:53:08,187 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 22:53:08,197 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-28 22:53:08,197 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-28 22:53:08,197 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce25ae1e-5c3b-43b6-9ab8-eba657853061/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Waiting until timeout for monitored process [2021-10-28 22:53:08,216 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2021-10-28 22:53:08,248 INFO L443 ModelExtractionUtils]: Simplification made 11 calls to the SMT solver. [2021-10-28 22:53:08,248 INFO L444 ModelExtractionUtils]: 6 out of 25 variables were initially zero. Simplification set additionally 16 variables to zero. [2021-10-28 22:53:08,249 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 22:53:08,250 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce25ae1e-5c3b-43b6-9ab8-eba657853061/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 22:53:08,272 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce25ae1e-5c3b-43b6-9ab8-eba657853061/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 22:53:08,332 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce25ae1e-5c3b-43b6-9ab8-eba657853061/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Waiting until timeout for monitored process [2021-10-28 22:53:08,335 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2021-10-28 22:53:08,364 INFO L438 nArgumentSynthesizer]: Removed 2 redundant supporting invariants from a total of 2. [2021-10-28 22:53:08,364 INFO L513 LassoAnalysis]: Proved termination. [2021-10-28 22:53:08,364 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(v_rep(select #length ULTIMATE.start_main_~nondetString1~0.base)_1, ULTIMATE.start_cstrpbrk_~sc1~0.offset) = 1*v_rep(select #length ULTIMATE.start_main_~nondetString1~0.base)_1 - 1*ULTIMATE.start_cstrpbrk_~sc1~0.offset Supporting invariants [] [2021-10-28 22:53:08,420 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce25ae1e-5c3b-43b6-9ab8-eba657853061/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Forceful destruction successful, exit code 0 [2021-10-28 22:53:08,445 INFO L297 tatePredicateManager]: 5 out of 6 supporting invariants were superfluous and have been removed [2021-10-28 22:53:08,497 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 22:53:08,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 22:53:08,526 INFO L263 TraceCheckSpWp]: Trace formula consists of 57 conjuncts, 8 conjunts are in the unsatisfiable core [2021-10-28 22:53:08,527 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 22:53:08,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 22:53:08,572 INFO L263 TraceCheckSpWp]: Trace formula consists of 49 conjuncts, 8 conjunts are in the unsatisfiable core [2021-10-28 22:53:08,573 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 22:53:08,713 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 22:53:08,719 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates [2021-10-28 22:53:08,720 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 13 states and 17 transitions. cyclomatic complexity: 5 Second operand has 3 states, 3 states have (on average 4.333333333333333) internal successors, (13), 3 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) [2021-10-28 22:53:08,749 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce25ae1e-5c3b-43b6-9ab8-eba657853061/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Ended with exit code 0 [2021-10-28 22:53:08,808 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 13 states and 17 transitions. cyclomatic complexity: 5. Second operand has 3 states, 3 states have (on average 4.333333333333333) internal successors, (13), 3 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 21 states and 28 transitions. Complement of second has 4 states. [2021-10-28 22:53:08,809 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 3 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2021-10-28 22:53:08,810 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 4.333333333333333) internal successors, (13), 3 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) [2021-10-28 22:53:08,811 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 17 transitions. [2021-10-28 22:53:08,813 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 17 transitions. Stem has 5 letters. Loop has 8 letters. [2021-10-28 22:53:08,814 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-28 22:53:08,814 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 17 transitions. Stem has 13 letters. Loop has 8 letters. [2021-10-28 22:53:08,815 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-28 22:53:08,815 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 17 transitions. Stem has 5 letters. Loop has 16 letters. [2021-10-28 22:53:08,816 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-28 22:53:08,816 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 21 states and 28 transitions. [2021-10-28 22:53:08,819 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2021-10-28 22:53:08,820 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 21 states to 18 states and 25 transitions. [2021-10-28 22:53:08,820 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 9 [2021-10-28 22:53:08,820 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 10 [2021-10-28 22:53:08,820 INFO L73 IsDeterministic]: Start isDeterministic. Operand 18 states and 25 transitions. [2021-10-28 22:53:08,820 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2021-10-28 22:53:08,821 INFO L681 BuchiCegarLoop]: Abstraction has 18 states and 25 transitions. [2021-10-28 22:53:08,821 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18 states and 25 transitions. [2021-10-28 22:53:08,822 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18 to 18. [2021-10-28 22:53:08,822 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18 states, 18 states have (on average 1.3888888888888888) internal successors, (25), 17 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 22:53:08,823 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 25 transitions. [2021-10-28 22:53:08,823 INFO L704 BuchiCegarLoop]: Abstraction has 18 states and 25 transitions. [2021-10-28 22:53:08,823 INFO L587 BuchiCegarLoop]: Abstraction has 18 states and 25 transitions. [2021-10-28 22:53:08,823 INFO L425 BuchiCegarLoop]: ======== Iteration 3============ [2021-10-28 22:53:08,823 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 18 states and 25 transitions. [2021-10-28 22:53:08,824 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2021-10-28 22:53:08,824 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-28 22:53:08,824 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-28 22:53:08,824 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2021-10-28 22:53:08,824 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2021-10-28 22:53:08,825 INFO L791 eck$LassoCheckResult]: Stem: 166#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier; 167#L-1 havoc main_#res;havoc main_#t~nondet213, main_#t~nondet214, main_#t~malloc215.base, main_#t~malloc215.offset, main_#t~malloc216.base, main_#t~malloc216.offset, main_#t~ret217.base, main_#t~ret217.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~nondet213;havoc main_#t~nondet213;main_~length2~0 := main_#t~nondet214;havoc main_#t~nondet214; 176#L382 assume !(main_~length1~0 < 1); 183#L382-2 assume !(main_~length2~0 < 1); 168#L385-1 call main_#t~malloc215.base, main_#t~malloc215.offset := #Ultimate.allocOnHeap(main_~length1~0);main_~nondetString1~0.base, main_~nondetString1~0.offset := main_#t~malloc215.base, main_#t~malloc215.offset;havoc main_#t~malloc215.base, main_#t~malloc215.offset;call main_#t~malloc216.base, main_#t~malloc216.offset := #Ultimate.allocOnHeap(main_~length2~0);main_~nondetString2~0.base, main_~nondetString2~0.offset := main_#t~malloc216.base, main_#t~malloc216.offset;havoc main_#t~malloc216.base, main_#t~malloc216.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~mem207, cstrpbrk_#t~post211.base, cstrpbrk_#t~post211.offset, cstrpbrk_#t~mem208, cstrpbrk_#t~mem209, cstrpbrk_#t~short210, cstrpbrk_#t~mem212, cstrpbrk_#t~post205.base, cstrpbrk_#t~post205.offset, cstrpbrk_#t~mem206, cstrpbrk_~s1.base, cstrpbrk_~s1.offset, cstrpbrk_~s2.base, cstrpbrk_~s2.offset, cstrpbrk_~sc1~0.base, cstrpbrk_~sc1~0.offset, cstrpbrk_~s~0.base, cstrpbrk_~s~0.offset, cstrpbrk_~c~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_~sc1~0.base, cstrpbrk_~sc1~0.offset;havoc cstrpbrk_~s~0.base, cstrpbrk_~s~0.offset;havoc cstrpbrk_~c~0;cstrpbrk_~sc1~0.base, cstrpbrk_~sc1~0.offset := cstrpbrk_~s1.base, cstrpbrk_~s1.offset; 169#L369-4 call cstrpbrk_#t~mem206 := read~int(cstrpbrk_~sc1~0.base, cstrpbrk_~sc1~0.offset, 1); 178#L369-1 assume !!(0 != cstrpbrk_#t~mem206);havoc cstrpbrk_#t~mem206;cstrpbrk_~s~0.base, cstrpbrk_~s~0.offset := cstrpbrk_~s2.base, cstrpbrk_~s2.offset;call cstrpbrk_#t~mem207 := read~int(cstrpbrk_~sc1~0.base, cstrpbrk_~sc1~0.offset, 1);cstrpbrk_~c~0 := cstrpbrk_#t~mem207;havoc cstrpbrk_#t~mem207; 172#L372-5 [2021-10-28 22:53:08,825 INFO L793 eck$LassoCheckResult]: Loop: 172#L372-5 call cstrpbrk_#t~mem208 := read~int(cstrpbrk_~s~0.base, cstrpbrk_~s~0.offset, 1);cstrpbrk_#t~short210 := 0 != cstrpbrk_#t~mem208; 173#L372-1 assume cstrpbrk_#t~short210;call cstrpbrk_#t~mem209 := read~int(cstrpbrk_~s~0.base, cstrpbrk_~s~0.offset, 1);cstrpbrk_#t~short210 := cstrpbrk_#t~mem209 != (if cstrpbrk_~c~0 % 256 <= 127 then cstrpbrk_~c~0 % 256 else cstrpbrk_~c~0 % 256 - 256); 181#L372-3 assume !!cstrpbrk_#t~short210;havoc cstrpbrk_#t~mem208;havoc cstrpbrk_#t~mem209;havoc cstrpbrk_#t~short210;cstrpbrk_#t~post211.base, cstrpbrk_#t~post211.offset := cstrpbrk_~s~0.base, cstrpbrk_~s~0.offset;cstrpbrk_~s~0.base, cstrpbrk_~s~0.offset := cstrpbrk_#t~post211.base, 1 + cstrpbrk_#t~post211.offset;havoc cstrpbrk_#t~post211.base, cstrpbrk_#t~post211.offset; 172#L372-5 [2021-10-28 22:53:08,825 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 22:53:08,825 INFO L85 PathProgramCache]: Analyzing trace with hash 1806935595, now seen corresponding path program 1 times [2021-10-28 22:53:08,826 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 22:53:08,826 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [490006937] [2021-10-28 22:53:08,826 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 22:53:08,826 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 22:53:08,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 22:53:08,847 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-28 22:53:08,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 22:53:08,872 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-28 22:53:08,872 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 22:53:08,873 INFO L85 PathProgramCache]: Analyzing trace with hash 58692, now seen corresponding path program 1 times [2021-10-28 22:53:08,873 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 22:53:08,873 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [289605156] [2021-10-28 22:53:08,873 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 22:53:08,874 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 22:53:08,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 22:53:08,882 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-28 22:53:08,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 22:53:08,891 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-28 22:53:08,892 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 22:53:08,892 INFO L85 PathProgramCache]: Analyzing trace with hash 1593218778, now seen corresponding path program 1 times [2021-10-28 22:53:08,892 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 22:53:08,893 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [929296017] [2021-10-28 22:53:08,893 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 22:53:08,893 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 22:53:08,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 22:53:08,917 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-28 22:53:08,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 22:53:08,947 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-28 22:53:09,768 INFO L210 LassoAnalysis]: Preferences: [2021-10-28 22:53:09,768 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-10-28 22:53:09,768 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-10-28 22:53:09,768 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-10-28 22:53:09,768 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2021-10-28 22:53:09,768 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 22:53:09,768 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-10-28 22:53:09,769 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-10-28 22:53:09,769 INFO L133 ssoRankerPreferences]: Filename of dumped script: cstrpbrk_malloc.i_Iteration3_Lasso [2021-10-28 22:53:09,769 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-10-28 22:53:09,769 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-10-28 22:53:09,774 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 22:53:09,776 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 22:53:09,778 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 22:53:10,191 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 22:53:10,194 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 22:53:10,196 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 22:53:10,198 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 22:53:10,200 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 22:53:10,202 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 22:53:10,203 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 22:53:10,205 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 22:53:10,207 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 22:53:10,209 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 22:53:10,211 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 22:53:10,213 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 22:53:10,214 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 22:53:10,216 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 22:53:10,218 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 22:53:10,220 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 22:53:10,222 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 22:53:10,225 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 22:53:10,227 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 22:53:10,231 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 22:53:10,233 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 22:53:11,091 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-10-28 22:53:11,091 INFO L490 LassoAnalysis]: Using template 'affine'. [2021-10-28 22:53:11,091 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 22:53:11,091 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce25ae1e-5c3b-43b6-9ab8-eba657853061/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 22:53:11,099 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce25ae1e-5c3b-43b6-9ab8-eba657853061/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 22:53:11,102 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce25ae1e-5c3b-43b6-9ab8-eba657853061/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Waiting until timeout for monitored process [2021-10-28 22:53:11,104 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 22:53:11,115 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 22:53:11,116 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 22:53:11,116 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 22:53:11,116 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 22:53:11,116 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 22:53:11,117 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-28 22:53:11,117 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 22:53:11,132 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 22:53:11,160 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce25ae1e-5c3b-43b6-9ab8-eba657853061/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Forceful destruction successful, exit code 0 [2021-10-28 22:53:11,161 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 22:53:11,161 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce25ae1e-5c3b-43b6-9ab8-eba657853061/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 22:53:11,162 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce25ae1e-5c3b-43b6-9ab8-eba657853061/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 22:53:11,162 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce25ae1e-5c3b-43b6-9ab8-eba657853061/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Waiting until timeout for monitored process [2021-10-28 22:53:11,163 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 22:53:11,171 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 22:53:11,171 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 22:53:11,171 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 22:53:11,172 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 22:53:11,172 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 22:53:11,174 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-28 22:53:11,174 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 22:53:11,200 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 22:53:11,238 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce25ae1e-5c3b-43b6-9ab8-eba657853061/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Forceful destruction successful, exit code 0 [2021-10-28 22:53:11,239 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 22:53:11,239 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce25ae1e-5c3b-43b6-9ab8-eba657853061/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 22:53:11,241 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce25ae1e-5c3b-43b6-9ab8-eba657853061/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 22:53:11,246 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce25ae1e-5c3b-43b6-9ab8-eba657853061/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Waiting until timeout for monitored process [2021-10-28 22:53:11,247 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 22:53:11,255 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 22:53:11,255 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 22:53:11,255 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 22:53:11,256 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 22:53:11,267 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-28 22:53:11,267 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-28 22:53:11,292 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2021-10-28 22:53:11,333 INFO L443 ModelExtractionUtils]: Simplification made 12 calls to the SMT solver. [2021-10-28 22:53:11,333 INFO L444 ModelExtractionUtils]: 9 out of 40 variables were initially zero. Simplification set additionally 28 variables to zero. [2021-10-28 22:53:11,334 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 22:53:11,334 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce25ae1e-5c3b-43b6-9ab8-eba657853061/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 22:53:11,334 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce25ae1e-5c3b-43b6-9ab8-eba657853061/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 22:53:11,341 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2021-10-28 22:53:11,350 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce25ae1e-5c3b-43b6-9ab8-eba657853061/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Waiting until timeout for monitored process [2021-10-28 22:53:11,372 INFO L438 nArgumentSynthesizer]: Removed 2 redundant supporting invariants from a total of 2. [2021-10-28 22:53:11,373 INFO L513 LassoAnalysis]: Proved termination. [2021-10-28 22:53:11,373 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(v_rep(select #length ULTIMATE.start_main_~nondetString2~0.base)_2, ULTIMATE.start_cstrpbrk_~s~0.offset) = 1*v_rep(select #length ULTIMATE.start_main_~nondetString2~0.base)_2 - 1*ULTIMATE.start_cstrpbrk_~s~0.offset Supporting invariants [] [2021-10-28 22:53:11,399 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce25ae1e-5c3b-43b6-9ab8-eba657853061/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Forceful destruction successful, exit code 0 [2021-10-28 22:53:11,425 INFO L297 tatePredicateManager]: 9 out of 10 supporting invariants were superfluous and have been removed [2021-10-28 22:53:11,446 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 22:53:11,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 22:53:11,468 INFO L263 TraceCheckSpWp]: Trace formula consists of 74 conjuncts, 8 conjunts are in the unsatisfiable core [2021-10-28 22:53:11,468 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 22:53:11,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 22:53:11,515 INFO L263 TraceCheckSpWp]: Trace formula consists of 24 conjuncts, 8 conjunts are in the unsatisfiable core [2021-10-28 22:53:11,516 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 22:53:11,554 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 22:53:11,555 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 [2021-10-28 22:53:11,555 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 18 states and 25 transitions. cyclomatic complexity: 9 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) [2021-10-28 22:53:11,603 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 18 states and 25 transitions. cyclomatic complexity: 9. 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 43 states and 57 transitions. Complement of second has 6 states. [2021-10-28 22:53:11,603 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 [2021-10-28 22:53:11,603 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) [2021-10-28 22:53:11,604 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 18 transitions. [2021-10-28 22:53:11,604 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 18 transitions. Stem has 7 letters. Loop has 3 letters. [2021-10-28 22:53:11,604 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-28 22:53:11,604 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 18 transitions. Stem has 10 letters. Loop has 3 letters. [2021-10-28 22:53:11,604 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-28 22:53:11,604 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 18 transitions. Stem has 7 letters. Loop has 6 letters. [2021-10-28 22:53:11,605 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-28 22:53:11,605 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 43 states and 57 transitions. [2021-10-28 22:53:11,607 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2021-10-28 22:53:11,608 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 43 states to 30 states and 40 transitions. [2021-10-28 22:53:11,608 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 11 [2021-10-28 22:53:11,608 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 11 [2021-10-28 22:53:11,608 INFO L73 IsDeterministic]: Start isDeterministic. Operand 30 states and 40 transitions. [2021-10-28 22:53:11,608 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2021-10-28 22:53:11,608 INFO L681 BuchiCegarLoop]: Abstraction has 30 states and 40 transitions. [2021-10-28 22:53:11,609 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30 states and 40 transitions. [2021-10-28 22:53:11,610 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30 to 24. [2021-10-28 22:53:11,611 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24 states, 24 states have (on average 1.375) internal successors, (33), 23 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 22:53:11,612 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 24 states and 33 transitions. [2021-10-28 22:53:11,612 INFO L704 BuchiCegarLoop]: Abstraction has 24 states and 33 transitions. [2021-10-28 22:53:11,612 INFO L587 BuchiCegarLoop]: Abstraction has 24 states and 33 transitions. [2021-10-28 22:53:11,612 INFO L425 BuchiCegarLoop]: ======== Iteration 4============ [2021-10-28 22:53:11,612 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 24 states and 33 transitions. [2021-10-28 22:53:11,623 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2021-10-28 22:53:11,623 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-28 22:53:11,623 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-28 22:53:11,624 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 22:53:11,624 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2021-10-28 22:53:11,624 INFO L791 eck$LassoCheckResult]: Stem: 326#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier; 327#L-1 havoc main_#res;havoc main_#t~nondet213, main_#t~nondet214, main_#t~malloc215.base, main_#t~malloc215.offset, main_#t~malloc216.base, main_#t~malloc216.offset, main_#t~ret217.base, main_#t~ret217.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~nondet213;havoc main_#t~nondet213;main_~length2~0 := main_#t~nondet214;havoc main_#t~nondet214; 336#L382 assume !(main_~length1~0 < 1); 345#L382-2 assume !(main_~length2~0 < 1); 328#L385-1 call main_#t~malloc215.base, main_#t~malloc215.offset := #Ultimate.allocOnHeap(main_~length1~0);main_~nondetString1~0.base, main_~nondetString1~0.offset := main_#t~malloc215.base, main_#t~malloc215.offset;havoc main_#t~malloc215.base, main_#t~malloc215.offset;call main_#t~malloc216.base, main_#t~malloc216.offset := #Ultimate.allocOnHeap(main_~length2~0);main_~nondetString2~0.base, main_~nondetString2~0.offset := main_#t~malloc216.base, main_#t~malloc216.offset;havoc main_#t~malloc216.base, main_#t~malloc216.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~mem207, cstrpbrk_#t~post211.base, cstrpbrk_#t~post211.offset, cstrpbrk_#t~mem208, cstrpbrk_#t~mem209, cstrpbrk_#t~short210, cstrpbrk_#t~mem212, cstrpbrk_#t~post205.base, cstrpbrk_#t~post205.offset, cstrpbrk_#t~mem206, cstrpbrk_~s1.base, cstrpbrk_~s1.offset, cstrpbrk_~s2.base, cstrpbrk_~s2.offset, cstrpbrk_~sc1~0.base, cstrpbrk_~sc1~0.offset, cstrpbrk_~s~0.base, cstrpbrk_~s~0.offset, cstrpbrk_~c~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_~sc1~0.base, cstrpbrk_~sc1~0.offset;havoc cstrpbrk_~s~0.base, cstrpbrk_~s~0.offset;havoc cstrpbrk_~c~0;cstrpbrk_~sc1~0.base, cstrpbrk_~sc1~0.offset := cstrpbrk_~s1.base, cstrpbrk_~s1.offset; 329#L369-4 call cstrpbrk_#t~mem206 := read~int(cstrpbrk_~sc1~0.base, cstrpbrk_~sc1~0.offset, 1); 337#L369-1 assume !!(0 != cstrpbrk_#t~mem206);havoc cstrpbrk_#t~mem206;cstrpbrk_~s~0.base, cstrpbrk_~s~0.offset := cstrpbrk_~s2.base, cstrpbrk_~s2.offset;call cstrpbrk_#t~mem207 := read~int(cstrpbrk_~sc1~0.base, cstrpbrk_~sc1~0.offset, 1);cstrpbrk_~c~0 := cstrpbrk_#t~mem207;havoc cstrpbrk_#t~mem207; 346#L372-5 call cstrpbrk_#t~mem208 := read~int(cstrpbrk_~s~0.base, cstrpbrk_~s~0.offset, 1);cstrpbrk_#t~short210 := 0 != cstrpbrk_#t~mem208; 343#L372-1 assume !cstrpbrk_#t~short210; 344#L372-3 assume !cstrpbrk_#t~short210;havoc cstrpbrk_#t~mem208;havoc cstrpbrk_#t~mem209;havoc cstrpbrk_#t~short210; 330#L372-6 call cstrpbrk_#t~mem212 := read~int(cstrpbrk_~s~0.base, cstrpbrk_~s~0.offset, 1); 331#L374 assume !(cstrpbrk_#t~mem212 != cstrpbrk_~c~0);havoc cstrpbrk_#t~mem212; 341#L369-3 cstrpbrk_#t~post205.base, cstrpbrk_#t~post205.offset := cstrpbrk_~sc1~0.base, cstrpbrk_~sc1~0.offset;cstrpbrk_~sc1~0.base, cstrpbrk_~sc1~0.offset := cstrpbrk_#t~post205.base, 1 + cstrpbrk_#t~post205.offset;havoc cstrpbrk_#t~post205.base, cstrpbrk_#t~post205.offset; 338#L369-4 call cstrpbrk_#t~mem206 := read~int(cstrpbrk_~sc1~0.base, cstrpbrk_~sc1~0.offset, 1); 340#L369-1 assume !!(0 != cstrpbrk_#t~mem206);havoc cstrpbrk_#t~mem206;cstrpbrk_~s~0.base, cstrpbrk_~s~0.offset := cstrpbrk_~s2.base, cstrpbrk_~s2.offset;call cstrpbrk_#t~mem207 := read~int(cstrpbrk_~sc1~0.base, cstrpbrk_~sc1~0.offset, 1);cstrpbrk_~c~0 := cstrpbrk_#t~mem207;havoc cstrpbrk_#t~mem207; 332#L372-5 [2021-10-28 22:53:11,624 INFO L793 eck$LassoCheckResult]: Loop: 332#L372-5 call cstrpbrk_#t~mem208 := read~int(cstrpbrk_~s~0.base, cstrpbrk_~s~0.offset, 1);cstrpbrk_#t~short210 := 0 != cstrpbrk_#t~mem208; 333#L372-1 assume cstrpbrk_#t~short210;call cstrpbrk_#t~mem209 := read~int(cstrpbrk_~s~0.base, cstrpbrk_~s~0.offset, 1);cstrpbrk_#t~short210 := cstrpbrk_#t~mem209 != (if cstrpbrk_~c~0 % 256 <= 127 then cstrpbrk_~c~0 % 256 else cstrpbrk_~c~0 % 256 - 256); 342#L372-3 assume !!cstrpbrk_#t~short210;havoc cstrpbrk_#t~mem208;havoc cstrpbrk_#t~mem209;havoc cstrpbrk_#t~short210;cstrpbrk_#t~post211.base, cstrpbrk_#t~post211.offset := cstrpbrk_~s~0.base, cstrpbrk_~s~0.offset;cstrpbrk_~s~0.base, cstrpbrk_~s~0.offset := cstrpbrk_#t~post211.base, 1 + cstrpbrk_#t~post211.offset;havoc cstrpbrk_#t~post211.base, cstrpbrk_#t~post211.offset; 332#L372-5 [2021-10-28 22:53:11,625 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 22:53:11,625 INFO L85 PathProgramCache]: Analyzing trace with hash 1587378397, now seen corresponding path program 1 times [2021-10-28 22:53:11,625 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 22:53:11,625 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [902588198] [2021-10-28 22:53:11,625 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 22:53:11,625 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 22:53:11,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 22:53:11,711 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce25ae1e-5c3b-43b6-9ab8-eba657853061/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Forceful destruction successful, exit code 0 [2021-10-28 22:53:11,727 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 22:53:11,728 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 22:53:11,728 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [902588198] [2021-10-28 22:53:11,728 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [902588198] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-28 22:53:11,729 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-28 22:53:11,729 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-10-28 22:53:11,729 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1670028598] [2021-10-28 22:53:11,730 INFO L796 eck$LassoCheckResult]: stem already infeasible [2021-10-28 22:53:11,730 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 22:53:11,731 INFO L85 PathProgramCache]: Analyzing trace with hash 58692, now seen corresponding path program 2 times [2021-10-28 22:53:11,731 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 22:53:11,732 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1725674154] [2021-10-28 22:53:11,732 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 22:53:11,732 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 22:53:11,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 22:53:11,751 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-28 22:53:11,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 22:53:11,768 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-28 22:53:11,902 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 22:53:11,903 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-10-28 22:53:11,903 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2021-10-28 22:53:11,903 INFO L87 Difference]: Start difference. First operand 24 states and 33 transitions. cyclomatic complexity: 12 Second operand has 7 states, 7 states have (on average 2.142857142857143) internal successors, (15), 7 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 22:53:11,996 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 22:53:11,996 INFO L93 Difference]: Finished difference Result 30 states and 39 transitions. [2021-10-28 22:53:11,996 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-10-28 22:53:11,996 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 30 states and 39 transitions. [2021-10-28 22:53:11,998 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2021-10-28 22:53:11,999 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 30 states to 27 states and 35 transitions. [2021-10-28 22:53:11,999 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 11 [2021-10-28 22:53:11,999 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 11 [2021-10-28 22:53:11,999 INFO L73 IsDeterministic]: Start isDeterministic. Operand 27 states and 35 transitions. [2021-10-28 22:53:11,999 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2021-10-28 22:53:11,999 INFO L681 BuchiCegarLoop]: Abstraction has 27 states and 35 transitions. [2021-10-28 22:53:11,999 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27 states and 35 transitions. [2021-10-28 22:53:12,001 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27 to 25. [2021-10-28 22:53:12,002 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 25 states, 25 states have (on average 1.32) internal successors, (33), 24 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 22:53:12,002 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25 states to 25 states and 33 transitions. [2021-10-28 22:53:12,002 INFO L704 BuchiCegarLoop]: Abstraction has 25 states and 33 transitions. [2021-10-28 22:53:12,002 INFO L587 BuchiCegarLoop]: Abstraction has 25 states and 33 transitions. [2021-10-28 22:53:12,003 INFO L425 BuchiCegarLoop]: ======== Iteration 5============ [2021-10-28 22:53:12,003 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 25 states and 33 transitions. [2021-10-28 22:53:12,003 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2021-10-28 22:53:12,004 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-28 22:53:12,004 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-28 22:53:12,004 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 22:53:12,004 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2021-10-28 22:53:12,005 INFO L791 eck$LassoCheckResult]: Stem: 398#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier; 399#L-1 havoc main_#res;havoc main_#t~nondet213, main_#t~nondet214, main_#t~malloc215.base, main_#t~malloc215.offset, main_#t~malloc216.base, main_#t~malloc216.offset, main_#t~ret217.base, main_#t~ret217.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~nondet213;havoc main_#t~nondet213;main_~length2~0 := main_#t~nondet214;havoc main_#t~nondet214; 408#L382 assume !(main_~length1~0 < 1); 417#L382-2 assume !(main_~length2~0 < 1); 400#L385-1 call main_#t~malloc215.base, main_#t~malloc215.offset := #Ultimate.allocOnHeap(main_~length1~0);main_~nondetString1~0.base, main_~nondetString1~0.offset := main_#t~malloc215.base, main_#t~malloc215.offset;havoc main_#t~malloc215.base, main_#t~malloc215.offset;call main_#t~malloc216.base, main_#t~malloc216.offset := #Ultimate.allocOnHeap(main_~length2~0);main_~nondetString2~0.base, main_~nondetString2~0.offset := main_#t~malloc216.base, main_#t~malloc216.offset;havoc main_#t~malloc216.base, main_#t~malloc216.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~mem207, cstrpbrk_#t~post211.base, cstrpbrk_#t~post211.offset, cstrpbrk_#t~mem208, cstrpbrk_#t~mem209, cstrpbrk_#t~short210, cstrpbrk_#t~mem212, cstrpbrk_#t~post205.base, cstrpbrk_#t~post205.offset, cstrpbrk_#t~mem206, cstrpbrk_~s1.base, cstrpbrk_~s1.offset, cstrpbrk_~s2.base, cstrpbrk_~s2.offset, cstrpbrk_~sc1~0.base, cstrpbrk_~sc1~0.offset, cstrpbrk_~s~0.base, cstrpbrk_~s~0.offset, cstrpbrk_~c~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_~sc1~0.base, cstrpbrk_~sc1~0.offset;havoc cstrpbrk_~s~0.base, cstrpbrk_~s~0.offset;havoc cstrpbrk_~c~0;cstrpbrk_~sc1~0.base, cstrpbrk_~sc1~0.offset := cstrpbrk_~s1.base, cstrpbrk_~s1.offset; 401#L369-4 call cstrpbrk_#t~mem206 := read~int(cstrpbrk_~sc1~0.base, cstrpbrk_~sc1~0.offset, 1); 409#L369-1 assume !!(0 != cstrpbrk_#t~mem206);havoc cstrpbrk_#t~mem206;cstrpbrk_~s~0.base, cstrpbrk_~s~0.offset := cstrpbrk_~s2.base, cstrpbrk_~s2.offset;call cstrpbrk_#t~mem207 := read~int(cstrpbrk_~sc1~0.base, cstrpbrk_~sc1~0.offset, 1);cstrpbrk_~c~0 := cstrpbrk_#t~mem207;havoc cstrpbrk_#t~mem207; 422#L372-5 call cstrpbrk_#t~mem208 := read~int(cstrpbrk_~s~0.base, cstrpbrk_~s~0.offset, 1);cstrpbrk_#t~short210 := 0 != cstrpbrk_#t~mem208; 421#L372-1 assume cstrpbrk_#t~short210;call cstrpbrk_#t~mem209 := read~int(cstrpbrk_~s~0.base, cstrpbrk_~s~0.offset, 1);cstrpbrk_#t~short210 := cstrpbrk_#t~mem209 != (if cstrpbrk_~c~0 % 256 <= 127 then cstrpbrk_~c~0 % 256 else cstrpbrk_~c~0 % 256 - 256); 419#L372-3 assume !cstrpbrk_#t~short210;havoc cstrpbrk_#t~mem208;havoc cstrpbrk_#t~mem209;havoc cstrpbrk_#t~short210; 402#L372-6 call cstrpbrk_#t~mem212 := read~int(cstrpbrk_~s~0.base, cstrpbrk_~s~0.offset, 1); 403#L374 assume !(cstrpbrk_#t~mem212 != cstrpbrk_~c~0);havoc cstrpbrk_#t~mem212; 413#L369-3 cstrpbrk_#t~post205.base, cstrpbrk_#t~post205.offset := cstrpbrk_~sc1~0.base, cstrpbrk_~sc1~0.offset;cstrpbrk_~sc1~0.base, cstrpbrk_~sc1~0.offset := cstrpbrk_#t~post205.base, 1 + cstrpbrk_#t~post205.offset;havoc cstrpbrk_#t~post205.base, cstrpbrk_#t~post205.offset; 410#L369-4 call cstrpbrk_#t~mem206 := read~int(cstrpbrk_~sc1~0.base, cstrpbrk_~sc1~0.offset, 1); 412#L369-1 assume !!(0 != cstrpbrk_#t~mem206);havoc cstrpbrk_#t~mem206;cstrpbrk_~s~0.base, cstrpbrk_~s~0.offset := cstrpbrk_~s2.base, cstrpbrk_~s2.offset;call cstrpbrk_#t~mem207 := read~int(cstrpbrk_~sc1~0.base, cstrpbrk_~sc1~0.offset, 1);cstrpbrk_~c~0 := cstrpbrk_#t~mem207;havoc cstrpbrk_#t~mem207; 404#L372-5 [2021-10-28 22:53:12,005 INFO L793 eck$LassoCheckResult]: Loop: 404#L372-5 call cstrpbrk_#t~mem208 := read~int(cstrpbrk_~s~0.base, cstrpbrk_~s~0.offset, 1);cstrpbrk_#t~short210 := 0 != cstrpbrk_#t~mem208; 405#L372-1 assume cstrpbrk_#t~short210;call cstrpbrk_#t~mem209 := read~int(cstrpbrk_~s~0.base, cstrpbrk_~s~0.offset, 1);cstrpbrk_#t~short210 := cstrpbrk_#t~mem209 != (if cstrpbrk_~c~0 % 256 <= 127 then cstrpbrk_~c~0 % 256 else cstrpbrk_~c~0 % 256 - 256); 414#L372-3 assume !!cstrpbrk_#t~short210;havoc cstrpbrk_#t~mem208;havoc cstrpbrk_#t~mem209;havoc cstrpbrk_#t~short210;cstrpbrk_#t~post211.base, cstrpbrk_#t~post211.offset := cstrpbrk_~s~0.base, cstrpbrk_~s~0.offset;cstrpbrk_~s~0.base, cstrpbrk_~s~0.offset := cstrpbrk_#t~post211.base, 1 + cstrpbrk_#t~post211.offset;havoc cstrpbrk_#t~post211.base, cstrpbrk_#t~post211.offset; 404#L372-5 [2021-10-28 22:53:12,005 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 22:53:12,005 INFO L85 PathProgramCache]: Analyzing trace with hash -187628965, now seen corresponding path program 2 times [2021-10-28 22:53:12,005 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 22:53:12,006 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [18169919] [2021-10-28 22:53:12,006 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 22:53:12,006 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 22:53:12,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 22:53:12,027 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-28 22:53:12,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 22:53:12,071 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-28 22:53:12,072 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 22:53:12,080 INFO L85 PathProgramCache]: Analyzing trace with hash 58692, now seen corresponding path program 3 times [2021-10-28 22:53:12,081 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 22:53:12,081 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1924085241] [2021-10-28 22:53:12,081 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 22:53:12,081 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 22:53:12,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 22:53:12,087 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-28 22:53:12,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 22:53:12,096 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-28 22:53:12,096 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 22:53:12,097 INFO L85 PathProgramCache]: Analyzing trace with hash -1902015318, now seen corresponding path program 1 times [2021-10-28 22:53:12,097 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 22:53:12,097 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1202246319] [2021-10-28 22:53:12,097 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 22:53:12,098 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 22:53:12,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 22:53:12,120 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-28 22:53:12,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 22:53:12,147 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-28 22:53:13,279 INFO L210 LassoAnalysis]: Preferences: [2021-10-28 22:53:13,279 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-10-28 22:53:13,279 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-10-28 22:53:13,279 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-10-28 22:53:13,279 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2021-10-28 22:53:13,279 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 22:53:13,279 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-10-28 22:53:13,280 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-10-28 22:53:13,280 INFO L133 ssoRankerPreferences]: Filename of dumped script: cstrpbrk_malloc.i_Iteration5_Lasso [2021-10-28 22:53:13,280 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-10-28 22:53:13,280 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-10-28 22:53:13,286 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 22:53:13,293 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 22:53:13,295 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 22:53:13,297 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 22:53:13,300 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 22:53:13,302 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 22:53:13,304 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 22:53:13,306 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 22:53:13,308 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 22:53:13,309 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 22:53:13,311 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 22:53:13,313 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 22:53:13,315 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 22:53:13,317 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 22:53:13,318 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 22:53:13,320 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 22:53:13,326 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 22:53:13,327 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 22:53:13,329 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 22:53:14,250 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 22:53:14,252 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 22:53:14,254 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 22:53:14,256 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 22:53:14,258 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 22:53:15,479 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-10-28 22:53:15,479 INFO L490 LassoAnalysis]: Using template 'affine'. [2021-10-28 22:53:15,479 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 22:53:15,479 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce25ae1e-5c3b-43b6-9ab8-eba657853061/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 22:53:15,484 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce25ae1e-5c3b-43b6-9ab8-eba657853061/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 22:53:15,492 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 22:53:15,501 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 22:53:15,501 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 22:53:15,502 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 22:53:15,502 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 22:53:15,502 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 22:53:15,502 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-28 22:53:15,502 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 22:53:15,504 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce25ae1e-5c3b-43b6-9ab8-eba657853061/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (14)] Waiting until timeout for monitored process [2021-10-28 22:53:15,520 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 22:53:15,543 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce25ae1e-5c3b-43b6-9ab8-eba657853061/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (14)] Forceful destruction successful, exit code 0 [2021-10-28 22:53:15,544 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 22:53:15,544 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce25ae1e-5c3b-43b6-9ab8-eba657853061/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 22:53:15,545 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce25ae1e-5c3b-43b6-9ab8-eba657853061/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 22:53:15,545 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce25ae1e-5c3b-43b6-9ab8-eba657853061/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (15)] Waiting until timeout for monitored process [2021-10-28 22:53:15,549 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 22:53:15,556 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 22:53:15,556 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 22:53:15,556 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 22:53:15,556 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 22:53:15,556 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 22:53:15,557 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-28 22:53:15,557 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 22:53:15,558 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 22:53:15,578 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce25ae1e-5c3b-43b6-9ab8-eba657853061/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (15)] Forceful destruction successful, exit code 0 [2021-10-28 22:53:15,578 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 22:53:15,579 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce25ae1e-5c3b-43b6-9ab8-eba657853061/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 22:53:15,579 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce25ae1e-5c3b-43b6-9ab8-eba657853061/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 22:53:15,589 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce25ae1e-5c3b-43b6-9ab8-eba657853061/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (16)] Waiting until timeout for monitored process [2021-10-28 22:53:15,590 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 22:53:15,597 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 22:53:15,597 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 22:53:15,598 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 22:53:15,598 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 22:53:15,598 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 22:53:15,598 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-28 22:53:15,598 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 22:53:15,608 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 22:53:15,628 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce25ae1e-5c3b-43b6-9ab8-eba657853061/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (16)] Forceful destruction successful, exit code 0 [2021-10-28 22:53:15,628 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 22:53:15,629 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce25ae1e-5c3b-43b6-9ab8-eba657853061/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 22:53:15,629 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce25ae1e-5c3b-43b6-9ab8-eba657853061/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 22:53:15,630 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce25ae1e-5c3b-43b6-9ab8-eba657853061/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (17)] Waiting until timeout for monitored process [2021-10-28 22:53:15,631 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 22:53:15,638 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 22:53:15,639 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 22:53:15,639 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 22:53:15,639 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 22:53:15,639 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 22:53:15,639 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-28 22:53:15,639 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 22:53:15,664 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 22:53:15,701 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce25ae1e-5c3b-43b6-9ab8-eba657853061/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (17)] Forceful destruction successful, exit code 0 [2021-10-28 22:53:15,702 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 22:53:15,702 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce25ae1e-5c3b-43b6-9ab8-eba657853061/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 22:53:15,703 INFO L229 MonitoredProcess]: Starting monitored process 18 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce25ae1e-5c3b-43b6-9ab8-eba657853061/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 22:53:15,712 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 22:53:15,721 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 22:53:15,722 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 22:53:15,722 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 22:53:15,722 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 22:53:15,722 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 22:53:15,723 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-28 22:53:15,723 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 22:53:15,724 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce25ae1e-5c3b-43b6-9ab8-eba657853061/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (18)] Waiting until timeout for monitored process [2021-10-28 22:53:15,732 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 22:53:15,769 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce25ae1e-5c3b-43b6-9ab8-eba657853061/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (18)] Forceful destruction successful, exit code 0 [2021-10-28 22:53:15,770 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 22:53:15,770 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce25ae1e-5c3b-43b6-9ab8-eba657853061/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 22:53:15,771 INFO L229 MonitoredProcess]: Starting monitored process 19 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce25ae1e-5c3b-43b6-9ab8-eba657853061/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 22:53:15,776 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 22:53:15,785 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce25ae1e-5c3b-43b6-9ab8-eba657853061/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (19)] Waiting until timeout for monitored process [2021-10-28 22:53:15,786 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 22:53:15,786 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 22:53:15,786 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 22:53:15,786 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 22:53:15,787 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-28 22:53:15,787 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-28 22:53:15,804 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 22:53:15,843 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce25ae1e-5c3b-43b6-9ab8-eba657853061/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (19)] Forceful destruction successful, exit code 0 [2021-10-28 22:53:15,846 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 22:53:15,846 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce25ae1e-5c3b-43b6-9ab8-eba657853061/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 22:53:15,847 INFO L229 MonitoredProcess]: Starting monitored process 20 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce25ae1e-5c3b-43b6-9ab8-eba657853061/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 22:53:15,854 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce25ae1e-5c3b-43b6-9ab8-eba657853061/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (20)] Waiting until timeout for monitored process [2021-10-28 22:53:15,855 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 22:53:15,862 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 22:53:15,863 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 22:53:15,863 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 22:53:15,863 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 22:53:15,863 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 22:53:15,868 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-28 22:53:15,868 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 22:53:15,872 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 22:53:15,891 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce25ae1e-5c3b-43b6-9ab8-eba657853061/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (20)] Forceful destruction successful, exit code 0 [2021-10-28 22:53:15,891 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 22:53:15,891 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce25ae1e-5c3b-43b6-9ab8-eba657853061/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 22:53:15,893 INFO L229 MonitoredProcess]: Starting monitored process 21 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce25ae1e-5c3b-43b6-9ab8-eba657853061/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 22:53:15,896 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce25ae1e-5c3b-43b6-9ab8-eba657853061/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (21)] Waiting until timeout for monitored process [2021-10-28 22:53:15,898 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 22:53:15,905 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 22:53:15,905 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 22:53:15,905 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 22:53:15,905 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 22:53:15,905 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 22:53:15,906 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-28 22:53:15,906 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 22:53:15,907 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 22:53:15,926 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce25ae1e-5c3b-43b6-9ab8-eba657853061/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (21)] Forceful destruction successful, exit code 0 [2021-10-28 22:53:15,926 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 22:53:15,926 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce25ae1e-5c3b-43b6-9ab8-eba657853061/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 22:53:15,927 INFO L229 MonitoredProcess]: Starting monitored process 22 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce25ae1e-5c3b-43b6-9ab8-eba657853061/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 22:53:15,928 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce25ae1e-5c3b-43b6-9ab8-eba657853061/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (22)] Waiting until timeout for monitored process [2021-10-28 22:53:15,929 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 22:53:15,936 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 22:53:15,936 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 22:53:15,936 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 22:53:15,936 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 22:53:15,936 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 22:53:15,937 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-28 22:53:15,937 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 22:53:15,949 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 22:53:15,968 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce25ae1e-5c3b-43b6-9ab8-eba657853061/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (22)] Forceful destruction successful, exit code 0 [2021-10-28 22:53:15,968 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 22:53:15,968 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce25ae1e-5c3b-43b6-9ab8-eba657853061/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 22:53:15,969 INFO L229 MonitoredProcess]: Starting monitored process 23 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce25ae1e-5c3b-43b6-9ab8-eba657853061/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 22:53:15,970 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce25ae1e-5c3b-43b6-9ab8-eba657853061/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (23)] Waiting until timeout for monitored process [2021-10-28 22:53:15,970 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 22:53:15,977 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 22:53:15,977 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 22:53:15,978 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 22:53:15,978 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 22:53:15,978 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 22:53:15,978 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-28 22:53:15,978 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 22:53:15,979 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 22:53:15,998 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce25ae1e-5c3b-43b6-9ab8-eba657853061/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (23)] Ended with exit code 0 [2021-10-28 22:53:15,998 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 22:53:15,998 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce25ae1e-5c3b-43b6-9ab8-eba657853061/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 22:53:15,999 INFO L229 MonitoredProcess]: Starting monitored process 24 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce25ae1e-5c3b-43b6-9ab8-eba657853061/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 22:53:16,000 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce25ae1e-5c3b-43b6-9ab8-eba657853061/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (24)] Waiting until timeout for monitored process [2021-10-28 22:53:16,000 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 22:53:16,007 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 22:53:16,007 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 22:53:16,007 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 22:53:16,007 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 22:53:16,007 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 22:53:16,008 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-28 22:53:16,008 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 22:53:16,009 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 22:53:16,027 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce25ae1e-5c3b-43b6-9ab8-eba657853061/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (24)] Ended with exit code 0 [2021-10-28 22:53:16,028 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 22:53:16,028 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce25ae1e-5c3b-43b6-9ab8-eba657853061/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 22:53:16,029 INFO L229 MonitoredProcess]: Starting monitored process 25 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce25ae1e-5c3b-43b6-9ab8-eba657853061/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 22:53:16,030 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce25ae1e-5c3b-43b6-9ab8-eba657853061/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (25)] Waiting until timeout for monitored process [2021-10-28 22:53:16,030 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 22:53:16,037 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 22:53:16,037 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 22:53:16,037 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 22:53:16,037 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 22:53:16,038 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-28 22:53:16,039 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-28 22:53:16,041 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 22:53:16,060 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce25ae1e-5c3b-43b6-9ab8-eba657853061/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (25)] Forceful destruction successful, exit code 0 [2021-10-28 22:53:16,060 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 22:53:16,060 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce25ae1e-5c3b-43b6-9ab8-eba657853061/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 22:53:16,061 INFO L229 MonitoredProcess]: Starting monitored process 26 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce25ae1e-5c3b-43b6-9ab8-eba657853061/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 22:53:16,062 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce25ae1e-5c3b-43b6-9ab8-eba657853061/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (26)] Waiting until timeout for monitored process [2021-10-28 22:53:16,062 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 22:53:16,070 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 22:53:16,070 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 22:53:16,070 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 22:53:16,070 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 22:53:16,070 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 22:53:16,070 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-28 22:53:16,070 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 22:53:16,079 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 22:53:16,098 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce25ae1e-5c3b-43b6-9ab8-eba657853061/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (26)] Forceful destruction successful, exit code 0 [2021-10-28 22:53:16,099 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 22:53:16,099 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce25ae1e-5c3b-43b6-9ab8-eba657853061/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 22:53:16,100 INFO L229 MonitoredProcess]: Starting monitored process 27 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce25ae1e-5c3b-43b6-9ab8-eba657853061/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 22:53:16,101 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce25ae1e-5c3b-43b6-9ab8-eba657853061/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (27)] Waiting until timeout for monitored process [2021-10-28 22:53:16,102 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 22:53:16,110 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 22:53:16,110 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 22:53:16,110 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 22:53:16,110 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 22:53:16,110 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 22:53:16,110 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-28 22:53:16,110 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 22:53:16,117 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 22:53:16,136 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce25ae1e-5c3b-43b6-9ab8-eba657853061/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (27)] Forceful destruction successful, exit code 0 [2021-10-28 22:53:16,136 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 22:53:16,136 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce25ae1e-5c3b-43b6-9ab8-eba657853061/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 22:53:16,137 INFO L229 MonitoredProcess]: Starting monitored process 28 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce25ae1e-5c3b-43b6-9ab8-eba657853061/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 22:53:16,149 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 22:53:16,149 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce25ae1e-5c3b-43b6-9ab8-eba657853061/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (28)] Waiting until timeout for monitored process [2021-10-28 22:53:16,156 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 22:53:16,156 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 22:53:16,156 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 22:53:16,157 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 22:53:16,157 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 22:53:16,157 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-28 22:53:16,157 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 22:53:16,158 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 22:53:16,177 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce25ae1e-5c3b-43b6-9ab8-eba657853061/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (28)] Forceful destruction successful, exit code 0 [2021-10-28 22:53:16,177 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 22:53:16,178 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce25ae1e-5c3b-43b6-9ab8-eba657853061/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 22:53:16,180 INFO L229 MonitoredProcess]: Starting monitored process 29 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce25ae1e-5c3b-43b6-9ab8-eba657853061/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 22:53:16,181 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce25ae1e-5c3b-43b6-9ab8-eba657853061/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (29)] Waiting until timeout for monitored process [2021-10-28 22:53:16,183 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 22:53:16,190 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 22:53:16,191 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 22:53:16,191 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 22:53:16,191 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 22:53:16,191 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 22:53:16,191 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-28 22:53:16,191 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 22:53:16,192 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 22:53:16,211 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce25ae1e-5c3b-43b6-9ab8-eba657853061/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (29)] Forceful destruction successful, exit code 0 [2021-10-28 22:53:16,211 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 22:53:16,212 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce25ae1e-5c3b-43b6-9ab8-eba657853061/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 22:53:16,213 INFO L229 MonitoredProcess]: Starting monitored process 30 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce25ae1e-5c3b-43b6-9ab8-eba657853061/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 22:53:16,214 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 22:53:16,217 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce25ae1e-5c3b-43b6-9ab8-eba657853061/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (30)] Waiting until timeout for monitored process [2021-10-28 22:53:16,222 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 22:53:16,222 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 22:53:16,222 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 22:53:16,222 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 22:53:16,222 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 22:53:16,223 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-28 22:53:16,223 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 22:53:16,224 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 22:53:16,243 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce25ae1e-5c3b-43b6-9ab8-eba657853061/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (30)] Forceful destruction successful, exit code 0 [2021-10-28 22:53:16,244 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 22:53:16,244 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce25ae1e-5c3b-43b6-9ab8-eba657853061/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 22:53:16,246 INFO L229 MonitoredProcess]: Starting monitored process 31 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce25ae1e-5c3b-43b6-9ab8-eba657853061/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 22:53:16,252 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce25ae1e-5c3b-43b6-9ab8-eba657853061/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (31)] Waiting until timeout for monitored process [2021-10-28 22:53:16,253 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 22:53:16,260 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 22:53:16,260 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 22:53:16,260 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 22:53:16,260 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 22:53:16,260 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 22:53:16,261 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-28 22:53:16,261 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 22:53:16,279 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 22:53:16,297 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce25ae1e-5c3b-43b6-9ab8-eba657853061/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (31)] Ended with exit code 0 [2021-10-28 22:53:16,298 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 22:53:16,298 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce25ae1e-5c3b-43b6-9ab8-eba657853061/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 22:53:16,298 INFO L229 MonitoredProcess]: Starting monitored process 32 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce25ae1e-5c3b-43b6-9ab8-eba657853061/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 22:53:16,300 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce25ae1e-5c3b-43b6-9ab8-eba657853061/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (32)] Waiting until timeout for monitored process [2021-10-28 22:53:16,301 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 22:53:16,309 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 22:53:16,309 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 22:53:16,309 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 22:53:16,309 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 22:53:16,312 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-28 22:53:16,312 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-28 22:53:16,317 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 22:53:16,336 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce25ae1e-5c3b-43b6-9ab8-eba657853061/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (32)] Ended with exit code 0 [2021-10-28 22:53:16,336 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 22:53:16,337 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce25ae1e-5c3b-43b6-9ab8-eba657853061/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 22:53:16,337 INFO L229 MonitoredProcess]: Starting monitored process 33 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce25ae1e-5c3b-43b6-9ab8-eba657853061/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 22:53:16,338 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce25ae1e-5c3b-43b6-9ab8-eba657853061/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (33)] Waiting until timeout for monitored process [2021-10-28 22:53:16,338 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 22:53:16,345 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 22:53:16,346 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 22:53:16,346 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 22:53:16,346 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 22:53:16,348 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-28 22:53:16,348 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-28 22:53:16,350 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 22:53:16,369 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce25ae1e-5c3b-43b6-9ab8-eba657853061/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (33)] Ended with exit code 0 [2021-10-28 22:53:16,370 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 22:53:16,370 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce25ae1e-5c3b-43b6-9ab8-eba657853061/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 22:53:16,370 INFO L229 MonitoredProcess]: Starting monitored process 34 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce25ae1e-5c3b-43b6-9ab8-eba657853061/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 22:53:16,371 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce25ae1e-5c3b-43b6-9ab8-eba657853061/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (34)] Waiting until timeout for monitored process [2021-10-28 22:53:16,372 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 22:53:16,379 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 22:53:16,379 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 22:53:16,379 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 22:53:16,380 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 22:53:16,393 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-28 22:53:16,393 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-28 22:53:16,413 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2021-10-28 22:53:16,446 INFO L443 ModelExtractionUtils]: Simplification made 18 calls to the SMT solver. [2021-10-28 22:53:16,446 INFO L444 ModelExtractionUtils]: 18 out of 37 variables were initially zero. Simplification set additionally 16 variables to zero. [2021-10-28 22:53:16,446 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 22:53:16,446 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce25ae1e-5c3b-43b6-9ab8-eba657853061/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 22:53:16,447 INFO L229 MonitoredProcess]: Starting monitored process 35 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce25ae1e-5c3b-43b6-9ab8-eba657853061/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 22:53:16,448 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce25ae1e-5c3b-43b6-9ab8-eba657853061/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (35)] Waiting until timeout for monitored process [2021-10-28 22:53:16,448 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2021-10-28 22:53:16,455 INFO L438 nArgumentSynthesizer]: Removed 2 redundant supporting invariants from a total of 2. [2021-10-28 22:53:16,456 INFO L513 LassoAnalysis]: Proved termination. [2021-10-28 22:53:16,456 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(v_rep(select #length ULTIMATE.start_main_~nondetString2~0.base)_3, ULTIMATE.start_cstrpbrk_~s~0.offset) = 1*v_rep(select #length ULTIMATE.start_main_~nondetString2~0.base)_3 - 1*ULTIMATE.start_cstrpbrk_~s~0.offset Supporting invariants [] [2021-10-28 22:53:16,475 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce25ae1e-5c3b-43b6-9ab8-eba657853061/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (34)] Ended with exit code 0 [2021-10-28 22:53:16,524 INFO L297 tatePredicateManager]: 20 out of 21 supporting invariants were superfluous and have been removed [2021-10-28 22:53:16,540 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 22:53:16,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 22:53:16,563 INFO L263 TraceCheckSpWp]: Trace formula consists of 119 conjuncts, 10 conjunts are in the unsatisfiable core [2021-10-28 22:53:16,564 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 22:53:16,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 22:53:16,662 INFO L263 TraceCheckSpWp]: Trace formula consists of 24 conjuncts, 8 conjunts are in the unsatisfiable core [2021-10-28 22:53:16,662 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 22:53:16,696 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 22:53:16,697 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 [2021-10-28 22:53:16,697 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 25 states and 33 transitions. cyclomatic complexity: 11 Second operand has 4 states, 4 states have (on average 4.25) internal successors, (17), 4 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 22:53:16,739 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 25 states and 33 transitions. cyclomatic complexity: 11. Second operand has 4 states, 4 states have (on average 4.25) internal successors, (17), 4 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 41 states and 51 transitions. Complement of second has 6 states. [2021-10-28 22:53:16,740 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 [2021-10-28 22:53:16,740 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4 states, 4 states have (on average 4.25) internal successors, (17), 4 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 22:53:16,741 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 18 transitions. [2021-10-28 22:53:16,741 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 18 transitions. Stem has 15 letters. Loop has 3 letters. [2021-10-28 22:53:16,741 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-28 22:53:16,741 INFO L639 RefineBuchi]: Bad chosen interpolant automaton: word not accepted [2021-10-28 22:53:16,761 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 22:53:16,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 22:53:16,784 INFO L263 TraceCheckSpWp]: Trace formula consists of 119 conjuncts, 10 conjunts are in the unsatisfiable core [2021-10-28 22:53:16,785 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 22:53:16,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 22:53:16,875 INFO L263 TraceCheckSpWp]: Trace formula consists of 24 conjuncts, 8 conjunts are in the unsatisfiable core [2021-10-28 22:53:16,875 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 22:53:16,908 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 22:53:16,909 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and with honda bouncer for loop.2 stem predicates 2 loop predicates [2021-10-28 22:53:16,909 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 25 states and 33 transitions. cyclomatic complexity: 11 Second operand has 4 states, 4 states have (on average 4.25) internal successors, (17), 4 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 22:53:16,943 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 25 states and 33 transitions. cyclomatic complexity: 11. Second operand has 4 states, 4 states have (on average 4.25) internal successors, (17), 4 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 41 states and 51 transitions. Complement of second has 6 states. [2021-10-28 22:53:16,944 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 [2021-10-28 22:53:16,944 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4 states, 4 states have (on average 4.25) internal successors, (17), 4 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 22:53:16,944 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 18 transitions. [2021-10-28 22:53:16,944 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 18 transitions. Stem has 15 letters. Loop has 3 letters. [2021-10-28 22:53:16,945 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-28 22:53:16,945 INFO L639 RefineBuchi]: Bad chosen interpolant automaton: word not accepted [2021-10-28 22:53:16,963 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 22:53:16,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 22:53:16,985 INFO L263 TraceCheckSpWp]: Trace formula consists of 119 conjuncts, 10 conjunts are in the unsatisfiable core [2021-10-28 22:53:16,986 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 22:53:17,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 22:53:17,081 INFO L263 TraceCheckSpWp]: Trace formula consists of 24 conjuncts, 8 conjunts are in the unsatisfiable core [2021-10-28 22:53:17,082 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 22:53:17,120 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 22:53:17,121 INFO L152 lantAutomatonBouncer]: Defining Buchi interpolant automaton with scrooge nondeterminism in stemwith honda bouncer for stem and without honda bouncer for loop.2 stem predicates 2 loop predicates [2021-10-28 22:53:17,121 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 25 states and 33 transitions. cyclomatic complexity: 11 Second operand has 4 states, 4 states have (on average 4.25) internal successors, (17), 4 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 22:53:17,171 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 25 states and 33 transitions. cyclomatic complexity: 11. Second operand has 4 states, 4 states have (on average 4.25) internal successors, (17), 4 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 41 states and 53 transitions. Complement of second has 5 states. [2021-10-28 22:53:17,171 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 [2021-10-28 22:53:17,172 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4 states, 4 states have (on average 4.25) internal successors, (17), 4 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 22:53:17,173 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 27 transitions. [2021-10-28 22:53:17,173 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 27 transitions. Stem has 15 letters. Loop has 3 letters. [2021-10-28 22:53:17,173 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-28 22:53:17,173 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 27 transitions. Stem has 18 letters. Loop has 3 letters. [2021-10-28 22:53:17,174 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-28 22:53:17,174 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 27 transitions. Stem has 15 letters. Loop has 6 letters. [2021-10-28 22:53:17,174 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-28 22:53:17,174 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 41 states and 53 transitions. [2021-10-28 22:53:17,176 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2021-10-28 22:53:17,176 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 41 states to 0 states and 0 transitions. [2021-10-28 22:53:17,176 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2021-10-28 22:53:17,176 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2021-10-28 22:53:17,176 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2021-10-28 22:53:17,176 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-28 22:53:17,176 INFO L681 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-10-28 22:53:17,176 INFO L704 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-10-28 22:53:17,177 INFO L587 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-10-28 22:53:17,177 INFO L425 BuchiCegarLoop]: ======== Iteration 6============ [2021-10-28 22:53:17,177 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2021-10-28 22:53:17,177 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2021-10-28 22:53:17,177 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2021-10-28 22:53:17,183 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 28.10 10:53:17 BoogieIcfgContainer [2021-10-28 22:53:17,183 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2021-10-28 22:53:17,184 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-28 22:53:17,184 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-28 22:53:17,184 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-28 22:53:17,184 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.10 10:53:04" (3/4) ... [2021-10-28 22:53:17,187 INFO L140 WitnessPrinter]: No result that supports witness generation found [2021-10-28 22:53:17,187 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-28 22:53:17,189 INFO L168 Benchmark]: Toolchain (without parser) took 14042.56 ms. Allocated memory was 107.0 MB in the beginning and 163.6 MB in the end (delta: 56.6 MB). Free memory was 70.3 MB in the beginning and 58.1 MB in the end (delta: 12.2 MB). Peak memory consumption was 68.4 MB. Max. memory is 16.1 GB. [2021-10-28 22:53:17,189 INFO L168 Benchmark]: CDTParser took 0.31 ms. Allocated memory is still 107.0 MB. Free memory was 81.6 MB in the beginning and 81.6 MB in the end (delta: 28.7 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-28 22:53:17,190 INFO L168 Benchmark]: CACSL2BoogieTranslator took 643.45 ms. Allocated memory is still 107.0 MB. Free memory was 70.1 MB in the beginning and 74.2 MB in the end (delta: -4.1 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2021-10-28 22:53:17,190 INFO L168 Benchmark]: Boogie Procedure Inliner took 45.61 ms. Allocated memory is still 107.0 MB. Free memory was 74.2 MB in the beginning and 72.2 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-28 22:53:17,191 INFO L168 Benchmark]: Boogie Preprocessor took 24.97 ms. Allocated memory is still 107.0 MB. Free memory was 72.2 MB in the beginning and 70.8 MB in the end (delta: 1.4 MB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-28 22:53:17,191 INFO L168 Benchmark]: RCFGBuilder took 327.94 ms. Allocated memory is still 107.0 MB. Free memory was 70.8 MB in the beginning and 59.9 MB in the end (delta: 10.9 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2021-10-28 22:53:17,191 INFO L168 Benchmark]: BuchiAutomizer took 12975.61 ms. Allocated memory was 107.0 MB in the beginning and 163.6 MB in the end (delta: 56.6 MB). Free memory was 59.9 MB in the beginning and 59.0 MB in the end (delta: 910.1 kB). Peak memory consumption was 60.6 MB. Max. memory is 16.1 GB. [2021-10-28 22:53:17,192 INFO L168 Benchmark]: Witness Printer took 3.93 ms. Allocated memory is still 163.6 MB. Free memory was 59.0 MB in the beginning and 58.1 MB in the end (delta: 984.8 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-28 22:53:17,194 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.31 ms. Allocated memory is still 107.0 MB. Free memory was 81.6 MB in the beginning and 81.6 MB in the end (delta: 28.7 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 643.45 ms. Allocated memory is still 107.0 MB. Free memory was 70.1 MB in the beginning and 74.2 MB in the end (delta: -4.1 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 45.61 ms. Allocated memory is still 107.0 MB. Free memory was 74.2 MB in the beginning and 72.2 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 24.97 ms. Allocated memory is still 107.0 MB. Free memory was 72.2 MB in the beginning and 70.8 MB in the end (delta: 1.4 MB). There was no memory consumed. Max. memory is 16.1 GB. * RCFGBuilder took 327.94 ms. Allocated memory is still 107.0 MB. Free memory was 70.8 MB in the beginning and 59.9 MB in the end (delta: 10.9 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * BuchiAutomizer took 12975.61 ms. Allocated memory was 107.0 MB in the beginning and 163.6 MB in the end (delta: 56.6 MB). Free memory was 59.9 MB in the beginning and 59.0 MB in the end (delta: 910.1 kB). Peak memory consumption was 60.6 MB. Max. memory is 16.1 GB. * Witness Printer took 3.93 ms. Allocated memory is still 163.6 MB. Free memory was 59.0 MB in the beginning and 58.1 MB in the end (delta: 984.8 kB). 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 unknown-#length-unknown[nondetString1] + -1 * sc1 and consists of 3 locations. One deterministic module has affine ranking function unknown-#length-unknown[nondetString2] + -1 * s and consists of 4 locations. One nondeterministic module has affine ranking function unknown-#length-unknown[nondetString2] + -1 * s and consists of 4 locations. 2 modules have a trivial ranking function, the largest among these consists of 7 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 12.9s and 6 iterations. TraceHistogramMax:2. Analysis of lassos took 11.3s. 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, 8 StatesRemovedByMinimization, 2 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 25 states and ocurred in iteration 4. Nontrivial modules had stage [2, 0, 1, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 105 SDtfs, 113 SDslu, 80 SDs, 0 SdLazy, 114 SolverSat, 25 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time LassoAnalysisResults: nont0 unkn0 SFLI1 SFLT0 conc0 concLT0 SILN0 SILU1 SILI0 SILT0 lasso3 LassoPreprocessingBenchmarks: Lassos: inital265 mio100 ax100 hnf100 lsp107 ukn78 mio100 lsp32 div133 bol100 ite100 ukn100 eq162 hnf77 smp86 dnf768 smp35 tf100 neg95 sie112 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 17ms VariablesStem: 1 VariablesLoop: 0 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 2 MotzkinApplications: 6 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 0 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 0 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.0s - TerminationAnalysisResult: Termination proven Buchi Automizer proved that your program is terminating RESULT: Ultimate proved your program to be correct! [2021-10-28 22:53:17,226 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce25ae1e-5c3b-43b6-9ab8-eba657853061/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (35)] Forceful destruction successful, exit code 0 [2021-10-28 22:53:17,449 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce25ae1e-5c3b-43b6-9ab8-eba657853061/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Ended with exit code 0 Received shutdown request...