./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/termination-dietlibc/strcspn.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 63182f13 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_252716b3-0bc5-4342-9502-c4579df3009a/bin/uautomizer-YU5uOKAj3y/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_252716b3-0bc5-4342-9502-c4579df3009a/bin/uautomizer-YU5uOKAj3y/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_252716b3-0bc5-4342-9502-c4579df3009a/bin/uautomizer-YU5uOKAj3y/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_252716b3-0bc5-4342-9502-c4579df3009a/bin/uautomizer-YU5uOKAj3y/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/termination-dietlibc/strcspn.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_252716b3-0bc5-4342-9502-c4579df3009a/bin/uautomizer-YU5uOKAj3y/config/svcomp-Termination-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_252716b3-0bc5-4342-9502-c4579df3009a/bin/uautomizer-YU5uOKAj3y --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 3537cd0bed922b783c5bc2cf1d153661eb68e22062217013fbb7937014c3d604 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-63182f1 [2021-11-13 18:04:50,025 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-13 18:04:50,028 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-13 18:04:50,071 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-13 18:04:50,072 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-13 18:04:50,073 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-13 18:04:50,076 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-13 18:04:50,079 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-13 18:04:50,082 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-13 18:04:50,083 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-13 18:04:50,085 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-13 18:04:50,087 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-13 18:04:50,088 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-13 18:04:50,090 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-13 18:04:50,092 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-13 18:04:50,095 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-13 18:04:50,097 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-13 18:04:50,098 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-13 18:04:50,102 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-13 18:04:50,105 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-13 18:04:50,110 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-13 18:04:50,113 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-13 18:04:50,115 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-13 18:04:50,116 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-13 18:04:50,121 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-13 18:04:50,122 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-13 18:04:50,122 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-13 18:04:50,123 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-13 18:04:50,124 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-13 18:04:50,130 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-13 18:04:50,131 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-13 18:04:50,132 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-13 18:04:50,134 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-13 18:04:50,135 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-13 18:04:50,137 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-13 18:04:50,145 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-13 18:04:50,146 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-13 18:04:50,147 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-13 18:04:50,147 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-13 18:04:50,149 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-13 18:04:50,150 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-13 18:04:50,153 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_252716b3-0bc5-4342-9502-c4579df3009a/bin/uautomizer-YU5uOKAj3y/config/svcomp-Termination-64bit-Automizer_Default.epf [2021-11-13 18:04:50,210 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-13 18:04:50,221 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-13 18:04:50,222 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-13 18:04:50,222 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-13 18:04:50,223 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-13 18:04:50,224 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-13 18:04:50,225 INFO L138 SettingsManager]: * Use SBE=true [2021-11-13 18:04:50,225 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2021-11-13 18:04:50,225 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2021-11-13 18:04:50,226 INFO L138 SettingsManager]: * Use old map elimination=false [2021-11-13 18:04:50,227 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2021-11-13 18:04:50,228 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2021-11-13 18:04:50,228 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2021-11-13 18:04:50,229 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-13 18:04:50,229 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-11-13 18:04:50,229 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-13 18:04:50,229 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-13 18:04:50,230 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2021-11-13 18:04:50,230 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2021-11-13 18:04:50,230 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2021-11-13 18:04:50,230 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-13 18:04:50,231 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2021-11-13 18:04:50,231 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-13 18:04:50,231 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2021-11-13 18:04:50,232 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-13 18:04:50,232 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-13 18:04:50,235 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-13 18:04:50,235 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-11-13 18:04:50,236 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-13 18:04:50,237 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2021-11-13 18:04:50,237 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_252716b3-0bc5-4342-9502-c4579df3009a/bin/uautomizer-YU5uOKAj3y/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_252716b3-0bc5-4342-9502-c4579df3009a/bin/uautomizer-YU5uOKAj3y Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 3537cd0bed922b783c5bc2cf1d153661eb68e22062217013fbb7937014c3d604 [2021-11-13 18:04:50,679 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-13 18:04:50,718 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-13 18:04:50,722 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-13 18:04:50,723 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-13 18:04:50,724 INFO L275 PluginConnector]: CDTParser initialized [2021-11-13 18:04:50,726 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_252716b3-0bc5-4342-9502-c4579df3009a/bin/uautomizer-YU5uOKAj3y/../../sv-benchmarks/c/termination-dietlibc/strcspn.i [2021-11-13 18:04:50,820 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_252716b3-0bc5-4342-9502-c4579df3009a/bin/uautomizer-YU5uOKAj3y/data/5c3211fde/4bd333801e9e47ea9bbf8064a6cbb7de/FLAG126472784 [2021-11-13 18:04:51,537 INFO L306 CDTParser]: Found 1 translation units. [2021-11-13 18:04:51,543 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_252716b3-0bc5-4342-9502-c4579df3009a/sv-benchmarks/c/termination-dietlibc/strcspn.i [2021-11-13 18:04:51,562 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_252716b3-0bc5-4342-9502-c4579df3009a/bin/uautomizer-YU5uOKAj3y/data/5c3211fde/4bd333801e9e47ea9bbf8064a6cbb7de/FLAG126472784 [2021-11-13 18:04:51,791 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_252716b3-0bc5-4342-9502-c4579df3009a/bin/uautomizer-YU5uOKAj3y/data/5c3211fde/4bd333801e9e47ea9bbf8064a6cbb7de [2021-11-13 18:04:51,795 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-13 18:04:51,797 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-13 18:04:51,816 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-13 18:04:51,816 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-13 18:04:51,820 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-13 18:04:51,821 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 06:04:51" (1/1) ... [2021-11-13 18:04:51,823 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@26ffd54a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 06:04:51, skipping insertion in model container [2021-11-13 18:04:51,823 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 06:04:51" (1/1) ... [2021-11-13 18:04:51,832 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-13 18:04:51,880 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-13 18:04:52,400 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-13 18:04:52,412 INFO L203 MainTranslator]: Completed pre-run [2021-11-13 18:04:52,487 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-13 18:04:52,530 INFO L208 MainTranslator]: Completed translation [2021-11-13 18:04:52,531 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 06:04:52 WrapperNode [2021-11-13 18:04:52,531 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-13 18:04:52,533 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-13 18:04:52,533 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-13 18:04:52,533 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-13 18:04:52,545 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 06:04:52" (1/1) ... [2021-11-13 18:04:52,578 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 06:04:52" (1/1) ... [2021-11-13 18:04:52,619 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-13 18:04:52,620 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-13 18:04:52,621 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-13 18:04:52,621 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-13 18:04:52,632 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 06:04:52" (1/1) ... [2021-11-13 18:04:52,632 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 06:04:52" (1/1) ... [2021-11-13 18:04:52,657 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 06:04:52" (1/1) ... [2021-11-13 18:04:52,658 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 06:04:52" (1/1) ... [2021-11-13 18:04:52,665 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 06:04:52" (1/1) ... [2021-11-13 18:04:52,680 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 06:04:52" (1/1) ... [2021-11-13 18:04:52,682 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 06:04:52" (1/1) ... [2021-11-13 18:04:52,685 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-13 18:04:52,687 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-13 18:04:52,687 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-13 18:04:52,687 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-13 18:04:52,688 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 06:04:52" (1/1) ... [2021-11-13 18:04:52,699 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-13 18:04:52,723 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_252716b3-0bc5-4342-9502-c4579df3009a/bin/uautomizer-YU5uOKAj3y/z3 [2021-11-13 18:04:52,747 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_252716b3-0bc5-4342-9502-c4579df3009a/bin/uautomizer-YU5uOKAj3y/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-13 18:04:52,781 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_252716b3-0bc5-4342-9502-c4579df3009a/bin/uautomizer-YU5uOKAj3y/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2021-11-13 18:04:52,816 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-11-13 18:04:52,817 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-11-13 18:04:52,817 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-13 18:04:52,817 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-13 18:04:52,818 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-13 18:04:52,819 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-13 18:04:53,215 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-13 18:04:53,216 INFO L299 CfgBuilder]: Removed 2 assume(true) statements. [2021-11-13 18:04:53,218 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 06:04:53 BoogieIcfgContainer [2021-11-13 18:04:53,218 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-13 18:04:53,220 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2021-11-13 18:04:53,220 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2021-11-13 18:04:53,225 INFO L275 PluginConnector]: BuchiAutomizer initialized [2021-11-13 18:04:53,226 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-11-13 18:04:53,226 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 13.11 06:04:51" (1/3) ... [2021-11-13 18:04:53,228 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@59c7d968 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 13.11 06:04:53, skipping insertion in model container [2021-11-13 18:04:53,228 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-11-13 18:04:53,228 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 06:04:52" (2/3) ... [2021-11-13 18:04:53,229 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@59c7d968 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 13.11 06:04:53, skipping insertion in model container [2021-11-13 18:04:53,229 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-11-13 18:04:53,229 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 06:04:53" (3/3) ... [2021-11-13 18:04:53,231 INFO L388 chiAutomizerObserver]: Analyzing ICFG strcspn.i [2021-11-13 18:04:53,291 INFO L359 BuchiCegarLoop]: Interprodecural is true [2021-11-13 18:04:53,291 INFO L360 BuchiCegarLoop]: Hoare is false [2021-11-13 18:04:53,291 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2021-11-13 18:04:53,291 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2021-11-13 18:04:53,291 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-11-13 18:04:53,292 INFO L364 BuchiCegarLoop]: Difference is false [2021-11-13 18:04:53,292 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-11-13 18:04:53,292 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2021-11-13 18:04:53,311 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 17 states, 16 states have (on average 1.4375) internal successors, (23), 16 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-13 18:04:53,336 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 8 [2021-11-13 18:04:53,337 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-11-13 18:04:53,337 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-11-13 18:04:53,344 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1] [2021-11-13 18:04:53,345 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1] [2021-11-13 18:04:53,345 INFO L425 BuchiCegarLoop]: ======== Iteration 1============ [2021-11-13 18:04:53,345 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 17 states, 16 states have (on average 1.4375) internal successors, (23), 16 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-13 18:04:53,347 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 8 [2021-11-13 18:04:53,348 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-11-13 18:04:53,348 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-11-13 18:04:53,348 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1] [2021-11-13 18:04:53,349 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1] [2021-11-13 18:04:53,356 INFO L791 eck$LassoCheckResult]: Stem: 4#ULTIMATE.startENTRYtrue assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier; 5#L-1true assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet9#1, main_#t~malloc10#1.base, main_#t~malloc10#1.offset, main_#t~nondet11#1, main_#t~malloc12#1.base, main_#t~malloc12#1.offset, main_#t~ret13#1, main_~in_len~0#1, main_~in~0#1.base, main_~in~0#1.offset, main_~out_len~0#1, main_~out~0#1.base, main_~out~0#1.offset;main_~in_len~0#1 := main_#t~nondet9#1;havoc main_#t~nondet9#1; 18#L519true assume !(main_~in_len~0#1 < 1);call main_#t~malloc10#1.base, main_#t~malloc10#1.offset := #Ultimate.allocOnStack(main_~in_len~0#1);main_~in~0#1.base, main_~in~0#1.offset := main_#t~malloc10#1.base, main_#t~malloc10#1.offset;call write~int(0, main_~in~0#1.base, main_~in~0#1.offset + (main_~in_len~0#1 - 1), 1);main_~out_len~0#1 := main_#t~nondet11#1;havoc main_#t~nondet11#1; 11#L523true assume !(main_~out_len~0#1 < 1);call main_#t~malloc12#1.base, main_#t~malloc12#1.offset := #Ultimate.allocOnStack(main_~out_len~0#1);main_~out~0#1.base, main_~out~0#1.offset := main_#t~malloc12#1.base, main_#t~malloc12#1.offset;call write~int(0, main_~out~0#1.base, main_~out~0#1.offset + (main_~out_len~0#1 - 1), 1);assume { :begin_inline_strcspn } true;strcspn_#in~s#1.base, strcspn_#in~s#1.offset, strcspn_#in~reject#1.base, strcspn_#in~reject#1.offset := main_~in~0#1.base, main_~in~0#1.offset, main_~out~0#1.base, main_~out~0#1.offset;havoc strcspn_#res#1;havoc strcspn_#t~mem4#1, strcspn_#t~mem5#1, strcspn_#t~pre3#1, strcspn_#t~mem6#1, strcspn_#t~pre7#1, strcspn_#t~pre2#1.base, strcspn_#t~pre2#1.offset, strcspn_#t~mem8#1, strcspn_~s#1.base, strcspn_~s#1.offset, strcspn_~reject#1.base, strcspn_~reject#1.offset, strcspn_~l~0#1, strcspn_~i~0#1;strcspn_~s#1.base, strcspn_~s#1.offset := strcspn_#in~s#1.base, strcspn_#in~s#1.offset;strcspn_~reject#1.base, strcspn_~reject#1.offset := strcspn_#in~reject#1.base, strcspn_#in~reject#1.offset;strcspn_~l~0#1 := 0;havoc strcspn_~i~0#1; 7#L510-4true [2021-11-13 18:04:53,357 INFO L793 eck$LassoCheckResult]: Loop: 7#L510-4true call strcspn_#t~mem8#1 := read~int(strcspn_~s#1.base, strcspn_~s#1.offset, 1); 13#L510-1true assume !!(0 != strcspn_#t~mem8#1);havoc strcspn_#t~mem8#1;strcspn_~i~0#1 := 0; 10#L511-4true assume !true; 15#L511-5true strcspn_#t~pre7#1 := 1 + strcspn_~l~0#1;strcspn_~l~0#1 := 1 + strcspn_~l~0#1;havoc strcspn_#t~pre7#1; 12#L510-3true strcspn_#t~pre2#1.base, strcspn_#t~pre2#1.offset := strcspn_~s#1.base, 1 + strcspn_~s#1.offset;strcspn_~s#1.base, strcspn_~s#1.offset := strcspn_~s#1.base, 1 + strcspn_~s#1.offset;havoc strcspn_#t~pre2#1.base, strcspn_#t~pre2#1.offset; 7#L510-4true [2021-11-13 18:04:53,365 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 18:04:53,365 INFO L85 PathProgramCache]: Analyzing trace with hash 925672, now seen corresponding path program 1 times [2021-11-13 18:04:53,375 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-13 18:04:53,375 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [245386274] [2021-11-13 18:04:53,376 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 18:04:53,377 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-13 18:04:53,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-13 18:04:53,559 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-13 18:04:53,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-13 18:04:53,640 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-11-13 18:04:53,647 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 18:04:53,647 INFO L85 PathProgramCache]: Analyzing trace with hash 44069891, now seen corresponding path program 1 times [2021-11-13 18:04:53,648 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-13 18:04:53,648 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [965706615] [2021-11-13 18:04:53,648 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 18:04:53,649 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-13 18:04:53,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:04:53,753 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-13 18:04:53,754 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-13 18:04:53,755 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [965706615] [2021-11-13 18:04:53,756 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [965706615] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-13 18:04:53,757 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-13 18:04:53,757 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-13 18:04:53,757 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1464805789] [2021-11-13 18:04:53,758 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-13 18:04:53,766 INFO L808 eck$LassoCheckResult]: loop already infeasible [2021-11-13 18:04:53,767 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-13 18:04:53,823 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-11-13 18:04:53,825 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-13 18:04:53,828 INFO L87 Difference]: Start difference. First operand has 17 states, 16 states have (on average 1.4375) internal successors, (23), 16 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 2 states, 2 states have (on average 2.5) internal successors, (5), 2 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-13 18:04:53,838 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-13 18:04:53,839 INFO L93 Difference]: Finished difference Result 17 states and 21 transitions. [2021-11-13 18:04:53,840 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-13 18:04:53,847 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 17 states and 21 transitions. [2021-11-13 18:04:53,853 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 8 [2021-11-13 18:04:53,858 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 17 states to 12 states and 13 transitions. [2021-11-13 18:04:53,860 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 12 [2021-11-13 18:04:53,861 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 12 [2021-11-13 18:04:53,861 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 13 transitions. [2021-11-13 18:04:53,862 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-11-13 18:04:53,862 INFO L681 BuchiCegarLoop]: Abstraction has 12 states and 13 transitions. [2021-11-13 18:04:53,887 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12 states and 13 transitions. [2021-11-13 18:04:53,898 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12 to 12. [2021-11-13 18:04:53,900 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12 states, 12 states have (on average 1.0833333333333333) internal successors, (13), 11 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-13 18:04:53,901 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 13 transitions. [2021-11-13 18:04:53,903 INFO L704 BuchiCegarLoop]: Abstraction has 12 states and 13 transitions. [2021-11-13 18:04:53,903 INFO L587 BuchiCegarLoop]: Abstraction has 12 states and 13 transitions. [2021-11-13 18:04:53,903 INFO L425 BuchiCegarLoop]: ======== Iteration 2============ [2021-11-13 18:04:53,904 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 12 states and 13 transitions. [2021-11-13 18:04:53,905 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 8 [2021-11-13 18:04:53,906 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-11-13 18:04:53,906 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-11-13 18:04:53,906 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1] [2021-11-13 18:04:53,907 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1] [2021-11-13 18:04:53,907 INFO L791 eck$LassoCheckResult]: Stem: 44#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier; 45#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet9#1, main_#t~malloc10#1.base, main_#t~malloc10#1.offset, main_#t~nondet11#1, main_#t~malloc12#1.base, main_#t~malloc12#1.offset, main_#t~ret13#1, main_~in_len~0#1, main_~in~0#1.base, main_~in~0#1.offset, main_~out_len~0#1, main_~out~0#1.base, main_~out~0#1.offset;main_~in_len~0#1 := main_#t~nondet9#1;havoc main_#t~nondet9#1; 52#L519 assume !(main_~in_len~0#1 < 1);call main_#t~malloc10#1.base, main_#t~malloc10#1.offset := #Ultimate.allocOnStack(main_~in_len~0#1);main_~in~0#1.base, main_~in~0#1.offset := main_#t~malloc10#1.base, main_#t~malloc10#1.offset;call write~int(0, main_~in~0#1.base, main_~in~0#1.offset + (main_~in_len~0#1 - 1), 1);main_~out_len~0#1 := main_#t~nondet11#1;havoc main_#t~nondet11#1; 48#L523 assume !(main_~out_len~0#1 < 1);call main_#t~malloc12#1.base, main_#t~malloc12#1.offset := #Ultimate.allocOnStack(main_~out_len~0#1);main_~out~0#1.base, main_~out~0#1.offset := main_#t~malloc12#1.base, main_#t~malloc12#1.offset;call write~int(0, main_~out~0#1.base, main_~out~0#1.offset + (main_~out_len~0#1 - 1), 1);assume { :begin_inline_strcspn } true;strcspn_#in~s#1.base, strcspn_#in~s#1.offset, strcspn_#in~reject#1.base, strcspn_#in~reject#1.offset := main_~in~0#1.base, main_~in~0#1.offset, main_~out~0#1.base, main_~out~0#1.offset;havoc strcspn_#res#1;havoc strcspn_#t~mem4#1, strcspn_#t~mem5#1, strcspn_#t~pre3#1, strcspn_#t~mem6#1, strcspn_#t~pre7#1, strcspn_#t~pre2#1.base, strcspn_#t~pre2#1.offset, strcspn_#t~mem8#1, strcspn_~s#1.base, strcspn_~s#1.offset, strcspn_~reject#1.base, strcspn_~reject#1.offset, strcspn_~l~0#1, strcspn_~i~0#1;strcspn_~s#1.base, strcspn_~s#1.offset := strcspn_#in~s#1.base, strcspn_#in~s#1.offset;strcspn_~reject#1.base, strcspn_~reject#1.offset := strcspn_#in~reject#1.base, strcspn_#in~reject#1.offset;strcspn_~l~0#1 := 0;havoc strcspn_~i~0#1; 47#L510-4 [2021-11-13 18:04:53,908 INFO L793 eck$LassoCheckResult]: Loop: 47#L510-4 call strcspn_#t~mem8#1 := read~int(strcspn_~s#1.base, strcspn_~s#1.offset, 1); 49#L510-1 assume !!(0 != strcspn_#t~mem8#1);havoc strcspn_#t~mem8#1;strcspn_~i~0#1 := 0; 42#L511-4 call strcspn_#t~mem6#1 := read~int(strcspn_~reject#1.base, strcspn_~reject#1.offset + strcspn_~i~0#1, 1); 43#L511-1 assume !(0 != strcspn_#t~mem6#1);havoc strcspn_#t~mem6#1; 53#L511-5 strcspn_#t~pre7#1 := 1 + strcspn_~l~0#1;strcspn_~l~0#1 := 1 + strcspn_~l~0#1;havoc strcspn_#t~pre7#1; 46#L510-3 strcspn_#t~pre2#1.base, strcspn_#t~pre2#1.offset := strcspn_~s#1.base, 1 + strcspn_~s#1.offset;strcspn_~s#1.base, strcspn_~s#1.offset := strcspn_~s#1.base, 1 + strcspn_~s#1.offset;havoc strcspn_#t~pre2#1.base, strcspn_#t~pre2#1.offset; 47#L510-4 [2021-11-13 18:04:53,910 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 18:04:53,910 INFO L85 PathProgramCache]: Analyzing trace with hash 925672, now seen corresponding path program 2 times [2021-11-13 18:04:53,910 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-13 18:04:53,911 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1261787180] [2021-11-13 18:04:53,912 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 18:04:53,913 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-13 18:04:53,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-13 18:04:53,977 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-13 18:04:54,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-13 18:04:54,055 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-11-13 18:04:54,059 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 18:04:54,059 INFO L85 PathProgramCache]: Analyzing trace with hash 1365737035, now seen corresponding path program 1 times [2021-11-13 18:04:54,060 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-13 18:04:54,060 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [947367610] [2021-11-13 18:04:54,061 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 18:04:54,061 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-13 18:04:54,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-13 18:04:54,089 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-13 18:04:54,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-13 18:04:54,108 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-11-13 18:04:54,112 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 18:04:54,113 INFO L85 PathProgramCache]: Analyzing trace with hash 736220402, now seen corresponding path program 1 times [2021-11-13 18:04:54,114 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-13 18:04:54,115 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1864768043] [2021-11-13 18:04:54,116 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 18:04:54,116 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-13 18:04:54,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-13 18:04:54,187 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-13 18:04:54,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-13 18:04:54,262 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-11-13 18:04:55,482 INFO L210 LassoAnalysis]: Preferences: [2021-11-13 18:04:55,492 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-11-13 18:04:55,492 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-11-13 18:04:55,497 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-11-13 18:04:55,497 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2021-11-13 18:04:55,497 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-13 18:04:55,497 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-11-13 18:04:55,497 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-11-13 18:04:55,497 INFO L133 ssoRankerPreferences]: Filename of dumped script: strcspn.i_Iteration2_Lasso [2021-11-13 18:04:55,497 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-11-13 18:04:55,498 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-11-13 18:04:55,542 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-13 18:04:56,163 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-13 18:04:56,173 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-13 18:04:56,177 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-13 18:04:56,181 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-13 18:04:56,185 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-13 18:04:56,190 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-13 18:04:56,194 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-13 18:04:56,198 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-13 18:04:56,201 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-13 18:04:56,206 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-13 18:04:56,209 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-13 18:04:56,213 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-13 18:04:56,220 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-13 18:04:56,224 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-13 18:04:56,228 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-13 18:04:56,231 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-13 18:04:56,829 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-11-13 18:04:56,836 INFO L490 LassoAnalysis]: Using template 'affine'. [2021-11-13 18:04:56,838 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-13 18:04:56,838 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_252716b3-0bc5-4342-9502-c4579df3009a/bin/uautomizer-YU5uOKAj3y/z3 [2021-11-13 18:04:56,842 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_252716b3-0bc5-4342-9502-c4579df3009a/bin/uautomizer-YU5uOKAj3y/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-13 18:04:56,850 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_252716b3-0bc5-4342-9502-c4579df3009a/bin/uautomizer-YU5uOKAj3y/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Waiting until timeout for monitored process [2021-11-13 18:04:56,851 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-11-13 18:04:56,863 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-13 18:04:56,864 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-13 18:04:56,864 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-13 18:04:56,864 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-13 18:04:56,871 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-11-13 18:04:56,871 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-11-13 18:04:56,883 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-11-13 18:04:56,931 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_252716b3-0bc5-4342-9502-c4579df3009a/bin/uautomizer-YU5uOKAj3y/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Forceful destruction successful, exit code 0 [2021-11-13 18:04:56,932 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-13 18:04:56,932 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_252716b3-0bc5-4342-9502-c4579df3009a/bin/uautomizer-YU5uOKAj3y/z3 [2021-11-13 18:04:56,934 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_252716b3-0bc5-4342-9502-c4579df3009a/bin/uautomizer-YU5uOKAj3y/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-13 18:04:56,941 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_252716b3-0bc5-4342-9502-c4579df3009a/bin/uautomizer-YU5uOKAj3y/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Waiting until timeout for monitored process [2021-11-13 18:04:56,942 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-11-13 18:04:56,953 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-13 18:04:56,954 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-11-13 18:04:56,954 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-13 18:04:56,954 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-13 18:04:56,955 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-13 18:04:56,956 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-11-13 18:04:56,956 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-11-13 18:04:56,967 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-11-13 18:04:57,002 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_252716b3-0bc5-4342-9502-c4579df3009a/bin/uautomizer-YU5uOKAj3y/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Forceful destruction successful, exit code 0 [2021-11-13 18:04:57,003 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-13 18:04:57,003 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_252716b3-0bc5-4342-9502-c4579df3009a/bin/uautomizer-YU5uOKAj3y/z3 [2021-11-13 18:04:57,004 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_252716b3-0bc5-4342-9502-c4579df3009a/bin/uautomizer-YU5uOKAj3y/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-13 18:04:57,006 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_252716b3-0bc5-4342-9502-c4579df3009a/bin/uautomizer-YU5uOKAj3y/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Waiting until timeout for monitored process [2021-11-13 18:04:57,007 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-11-13 18:04:57,017 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-13 18:04:57,017 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-13 18:04:57,017 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-13 18:04:57,017 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-13 18:04:57,023 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-11-13 18:04:57,024 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-11-13 18:04:57,041 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-11-13 18:04:57,088 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_252716b3-0bc5-4342-9502-c4579df3009a/bin/uautomizer-YU5uOKAj3y/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Forceful destruction successful, exit code 0 [2021-11-13 18:04:57,089 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-13 18:04:57,089 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_252716b3-0bc5-4342-9502-c4579df3009a/bin/uautomizer-YU5uOKAj3y/z3 [2021-11-13 18:04:57,093 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_252716b3-0bc5-4342-9502-c4579df3009a/bin/uautomizer-YU5uOKAj3y/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-13 18:04:57,102 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 [2021-11-13 18:04:57,114 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-13 18:04:57,115 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-13 18:04:57,115 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-13 18:04:57,115 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-13 18:04:57,124 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_252716b3-0bc5-4342-9502-c4579df3009a/bin/uautomizer-YU5uOKAj3y/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Waiting until timeout for monitored process [2021-11-13 18:04:57,131 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-11-13 18:04:57,131 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-11-13 18:04:57,169 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-11-13 18:04:57,216 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_252716b3-0bc5-4342-9502-c4579df3009a/bin/uautomizer-YU5uOKAj3y/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Forceful destruction successful, exit code 0 [2021-11-13 18:04:57,217 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-13 18:04:57,217 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_252716b3-0bc5-4342-9502-c4579df3009a/bin/uautomizer-YU5uOKAj3y/z3 [2021-11-13 18:04:57,218 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_252716b3-0bc5-4342-9502-c4579df3009a/bin/uautomizer-YU5uOKAj3y/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-13 18:04:57,224 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_252716b3-0bc5-4342-9502-c4579df3009a/bin/uautomizer-YU5uOKAj3y/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Waiting until timeout for monitored process [2021-11-13 18:04:57,225 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-11-13 18:04:57,237 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-13 18:04:57,237 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-13 18:04:57,237 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-13 18:04:57,237 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-13 18:04:57,243 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-11-13 18:04:57,243 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-11-13 18:04:57,261 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-11-13 18:04:57,301 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_252716b3-0bc5-4342-9502-c4579df3009a/bin/uautomizer-YU5uOKAj3y/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Forceful destruction successful, exit code 0 [2021-11-13 18:04:57,301 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-13 18:04:57,302 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_252716b3-0bc5-4342-9502-c4579df3009a/bin/uautomizer-YU5uOKAj3y/z3 [2021-11-13 18:04:57,303 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_252716b3-0bc5-4342-9502-c4579df3009a/bin/uautomizer-YU5uOKAj3y/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-13 18:04:57,304 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_252716b3-0bc5-4342-9502-c4579df3009a/bin/uautomizer-YU5uOKAj3y/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Waiting until timeout for monitored process [2021-11-13 18:04:57,305 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-11-13 18:04:57,314 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-13 18:04:57,314 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-11-13 18:04:57,314 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-13 18:04:57,315 INFO L204 nArgumentSynthesizer]: 2 loop disjuncts [2021-11-13 18:04:57,315 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-13 18:04:57,316 INFO L401 nArgumentSynthesizer]: We have 4 Motzkin's Theorem applications. [2021-11-13 18:04:57,316 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-11-13 18:04:57,349 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-11-13 18:04:57,395 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_252716b3-0bc5-4342-9502-c4579df3009a/bin/uautomizer-YU5uOKAj3y/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Forceful destruction successful, exit code 0 [2021-11-13 18:04:57,396 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-13 18:04:57,396 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_252716b3-0bc5-4342-9502-c4579df3009a/bin/uautomizer-YU5uOKAj3y/z3 [2021-11-13 18:04:57,401 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_252716b3-0bc5-4342-9502-c4579df3009a/bin/uautomizer-YU5uOKAj3y/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-13 18:04:57,405 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_252716b3-0bc5-4342-9502-c4579df3009a/bin/uautomizer-YU5uOKAj3y/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Waiting until timeout for monitored process [2021-11-13 18:04:57,406 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-11-13 18:04:57,416 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-13 18:04:57,416 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-13 18:04:57,416 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-13 18:04:57,416 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-13 18:04:57,425 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-11-13 18:04:57,425 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-11-13 18:04:57,438 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-11-13 18:04:57,485 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_252716b3-0bc5-4342-9502-c4579df3009a/bin/uautomizer-YU5uOKAj3y/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Forceful destruction successful, exit code 0 [2021-11-13 18:04:57,486 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-13 18:04:57,486 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_252716b3-0bc5-4342-9502-c4579df3009a/bin/uautomizer-YU5uOKAj3y/z3 [2021-11-13 18:04:57,488 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_252716b3-0bc5-4342-9502-c4579df3009a/bin/uautomizer-YU5uOKAj3y/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-13 18:04:57,501 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_252716b3-0bc5-4342-9502-c4579df3009a/bin/uautomizer-YU5uOKAj3y/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Waiting until timeout for monitored process [2021-11-13 18:04:57,502 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-11-13 18:04:57,515 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-13 18:04:57,515 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-13 18:04:57,516 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-13 18:04:57,516 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-13 18:04:57,530 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-11-13 18:04:57,530 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-11-13 18:04:57,547 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-11-13 18:04:57,589 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_252716b3-0bc5-4342-9502-c4579df3009a/bin/uautomizer-YU5uOKAj3y/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Forceful destruction successful, exit code 0 [2021-11-13 18:04:57,589 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-13 18:04:57,590 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_252716b3-0bc5-4342-9502-c4579df3009a/bin/uautomizer-YU5uOKAj3y/z3 [2021-11-13 18:04:57,593 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_252716b3-0bc5-4342-9502-c4579df3009a/bin/uautomizer-YU5uOKAj3y/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-13 18:04:57,601 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-11-13 18:04:57,612 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-13 18:04:57,613 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-13 18:04:57,613 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-13 18:04:57,613 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-13 18:04:57,616 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-11-13 18:04:57,616 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-11-13 18:04:57,619 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_252716b3-0bc5-4342-9502-c4579df3009a/bin/uautomizer-YU5uOKAj3y/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Waiting until timeout for monitored process [2021-11-13 18:04:57,633 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-11-13 18:04:57,662 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_252716b3-0bc5-4342-9502-c4579df3009a/bin/uautomizer-YU5uOKAj3y/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Forceful destruction successful, exit code 0 [2021-11-13 18:04:57,662 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-13 18:04:57,662 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_252716b3-0bc5-4342-9502-c4579df3009a/bin/uautomizer-YU5uOKAj3y/z3 [2021-11-13 18:04:57,663 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_252716b3-0bc5-4342-9502-c4579df3009a/bin/uautomizer-YU5uOKAj3y/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-13 18:04:57,666 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_252716b3-0bc5-4342-9502-c4579df3009a/bin/uautomizer-YU5uOKAj3y/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Waiting until timeout for monitored process [2021-11-13 18:04:57,666 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-11-13 18:04:57,676 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-13 18:04:57,677 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-13 18:04:57,677 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-13 18:04:57,677 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-13 18:04:57,686 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-11-13 18:04:57,686 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-11-13 18:04:57,717 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2021-11-13 18:04:57,778 INFO L443 ModelExtractionUtils]: Simplification made 15 calls to the SMT solver. [2021-11-13 18:04:57,778 INFO L444 ModelExtractionUtils]: 8 out of 25 variables were initially zero. Simplification set additionally 12 variables to zero. [2021-11-13 18:04:57,781 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-13 18:04:57,781 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_252716b3-0bc5-4342-9502-c4579df3009a/bin/uautomizer-YU5uOKAj3y/z3 [2021-11-13 18:04:57,788 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_252716b3-0bc5-4342-9502-c4579df3009a/bin/uautomizer-YU5uOKAj3y/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-13 18:04:57,829 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2021-11-13 18:04:57,841 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_252716b3-0bc5-4342-9502-c4579df3009a/bin/uautomizer-YU5uOKAj3y/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Waiting until timeout for monitored process [2021-11-13 18:04:57,859 INFO L438 nArgumentSynthesizer]: Removed 1 redundant supporting invariants from a total of 2. [2021-11-13 18:04:57,860 INFO L513 LassoAnalysis]: Proved termination. [2021-11-13 18:04:57,861 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~in_len~0#1, ULTIMATE.start_strcspn_~s#1.offset) = 1*ULTIMATE.start_main_~in_len~0#1 - 1*ULTIMATE.start_strcspn_~s#1.offset Supporting invariants [1*ULTIMATE.start_main_~in_len~0#1 - 1*v_rep(select #length ULTIMATE.start_main_#t~malloc10#1.base)_1 >= 0] [2021-11-13 18:04:57,909 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_252716b3-0bc5-4342-9502-c4579df3009a/bin/uautomizer-YU5uOKAj3y/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Forceful destruction successful, exit code 0 [2021-11-13 18:04:58,045 INFO L297 tatePredicateManager]: 14 out of 16 supporting invariants were superfluous and have been removed [2021-11-13 18:04:58,079 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_252716b3-0bc5-4342-9502-c4579df3009a/bin/uautomizer-YU5uOKAj3y/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Forceful destruction successful, exit code 0 [2021-11-13 18:04:58,100 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 18:04:58,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:04:58,129 INFO L263 TraceCheckSpWp]: Trace formula consists of 65 conjuncts, 14 conjunts are in the unsatisfiable core [2021-11-13 18:04:58,131 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-13 18:04:58,214 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2021-11-13 18:04:58,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:04:58,272 INFO L263 TraceCheckSpWp]: Trace formula consists of 28 conjuncts, 9 conjunts are in the unsatisfiable core [2021-11-13 18:04:58,273 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-13 18:04:58,429 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-13 18:04:58,434 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.2 stem predicates 2 loop predicates [2021-11-13 18:04:58,435 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 12 states and 13 transitions. cyclomatic complexity: 2 Second operand has 4 states, 4 states have (on average 2.5) internal successors, (10), 4 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-13 18:04:58,524 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 12 states and 13 transitions. cyclomatic complexity: 2. 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 20 states and 23 transitions. Complement of second has 5 states. [2021-11-13 18:04:58,524 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 2 stem states 1 non-accepting loop states 1 accepting loop states [2021-11-13 18:04:58,525 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4 states, 4 states have (on average 2.5) internal successors, (10), 4 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-13 18:04:58,526 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 13 transitions. [2021-11-13 18:04:58,528 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 13 transitions. Stem has 4 letters. Loop has 6 letters. [2021-11-13 18:04:58,530 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-11-13 18:04:58,530 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 13 transitions. Stem has 10 letters. Loop has 6 letters. [2021-11-13 18:04:58,532 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-11-13 18:04:58,532 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 13 transitions. Stem has 4 letters. Loop has 12 letters. [2021-11-13 18:04:58,533 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-11-13 18:04:58,533 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 20 states and 23 transitions. [2021-11-13 18:04:58,537 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2021-11-13 18:04:58,538 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 20 states to 18 states and 21 transitions. [2021-11-13 18:04:58,538 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 9 [2021-11-13 18:04:58,539 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 10 [2021-11-13 18:04:58,539 INFO L73 IsDeterministic]: Start isDeterministic. Operand 18 states and 21 transitions. [2021-11-13 18:04:58,539 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2021-11-13 18:04:58,539 INFO L681 BuchiCegarLoop]: Abstraction has 18 states and 21 transitions. [2021-11-13 18:04:58,539 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18 states and 21 transitions. [2021-11-13 18:04:58,541 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18 to 18. [2021-11-13 18:04:58,542 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18 states, 18 states have (on average 1.1666666666666667) internal successors, (21), 17 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-13 18:04:58,543 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 21 transitions. [2021-11-13 18:04:58,543 INFO L704 BuchiCegarLoop]: Abstraction has 18 states and 21 transitions. [2021-11-13 18:04:58,544 INFO L587 BuchiCegarLoop]: Abstraction has 18 states and 21 transitions. [2021-11-13 18:04:58,544 INFO L425 BuchiCegarLoop]: ======== Iteration 3============ [2021-11-13 18:04:58,544 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 18 states and 21 transitions. [2021-11-13 18:04:58,547 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2021-11-13 18:04:58,548 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-11-13 18:04:58,548 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-11-13 18:04:58,550 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2021-11-13 18:04:58,551 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2021-11-13 18:04:58,551 INFO L791 eck$LassoCheckResult]: Stem: 196#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier; 197#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet9#1, main_#t~malloc10#1.base, main_#t~malloc10#1.offset, main_#t~nondet11#1, main_#t~malloc12#1.base, main_#t~malloc12#1.offset, main_#t~ret13#1, main_~in_len~0#1, main_~in~0#1.base, main_~in~0#1.offset, main_~out_len~0#1, main_~out~0#1.base, main_~out~0#1.offset;main_~in_len~0#1 := main_#t~nondet9#1;havoc main_#t~nondet9#1; 208#L519 assume !(main_~in_len~0#1 < 1);call main_#t~malloc10#1.base, main_#t~malloc10#1.offset := #Ultimate.allocOnStack(main_~in_len~0#1);main_~in~0#1.base, main_~in~0#1.offset := main_#t~malloc10#1.base, main_#t~malloc10#1.offset;call write~int(0, main_~in~0#1.base, main_~in~0#1.offset + (main_~in_len~0#1 - 1), 1);main_~out_len~0#1 := main_#t~nondet11#1;havoc main_#t~nondet11#1; 202#L523 assume !(main_~out_len~0#1 < 1);call main_#t~malloc12#1.base, main_#t~malloc12#1.offset := #Ultimate.allocOnStack(main_~out_len~0#1);main_~out~0#1.base, main_~out~0#1.offset := main_#t~malloc12#1.base, main_#t~malloc12#1.offset;call write~int(0, main_~out~0#1.base, main_~out~0#1.offset + (main_~out_len~0#1 - 1), 1);assume { :begin_inline_strcspn } true;strcspn_#in~s#1.base, strcspn_#in~s#1.offset, strcspn_#in~reject#1.base, strcspn_#in~reject#1.offset := main_~in~0#1.base, main_~in~0#1.offset, main_~out~0#1.base, main_~out~0#1.offset;havoc strcspn_#res#1;havoc strcspn_#t~mem4#1, strcspn_#t~mem5#1, strcspn_#t~pre3#1, strcspn_#t~mem6#1, strcspn_#t~pre7#1, strcspn_#t~pre2#1.base, strcspn_#t~pre2#1.offset, strcspn_#t~mem8#1, strcspn_~s#1.base, strcspn_~s#1.offset, strcspn_~reject#1.base, strcspn_~reject#1.offset, strcspn_~l~0#1, strcspn_~i~0#1;strcspn_~s#1.base, strcspn_~s#1.offset := strcspn_#in~s#1.base, strcspn_#in~s#1.offset;strcspn_~reject#1.base, strcspn_~reject#1.offset := strcspn_#in~reject#1.base, strcspn_#in~reject#1.offset;strcspn_~l~0#1 := 0;havoc strcspn_~i~0#1; 203#L510-4 call strcspn_#t~mem8#1 := read~int(strcspn_~s#1.base, strcspn_~s#1.offset, 1); 206#L510-1 assume !!(0 != strcspn_#t~mem8#1);havoc strcspn_#t~mem8#1;strcspn_~i~0#1 := 0; 198#L511-4 [2021-11-13 18:04:58,551 INFO L793 eck$LassoCheckResult]: Loop: 198#L511-4 call strcspn_#t~mem6#1 := read~int(strcspn_~reject#1.base, strcspn_~reject#1.offset + strcspn_~i~0#1, 1); 199#L511-1 assume !!(0 != strcspn_#t~mem6#1);havoc strcspn_#t~mem6#1;call strcspn_#t~mem4#1 := read~int(strcspn_~s#1.base, strcspn_~s#1.offset, 1);call strcspn_#t~mem5#1 := read~int(strcspn_~reject#1.base, strcspn_~reject#1.offset + strcspn_~i~0#1, 1); 209#L512 assume !(strcspn_#t~mem4#1 == strcspn_#t~mem5#1);havoc strcspn_#t~mem4#1;havoc strcspn_#t~mem5#1; 210#L511-3 strcspn_#t~pre3#1 := 1 + strcspn_~i~0#1;strcspn_~i~0#1 := 1 + strcspn_~i~0#1;havoc strcspn_#t~pre3#1; 198#L511-4 [2021-11-13 18:04:58,552 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 18:04:58,553 INFO L85 PathProgramCache]: Analyzing trace with hash 889571309, now seen corresponding path program 1 times [2021-11-13 18:04:58,553 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-13 18:04:58,553 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1221758974] [2021-11-13 18:04:58,553 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 18:04:58,554 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-13 18:04:58,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-13 18:04:58,606 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-13 18:04:58,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-13 18:04:58,630 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-11-13 18:04:58,631 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 18:04:58,631 INFO L85 PathProgramCache]: Analyzing trace with hash 1698248, now seen corresponding path program 1 times [2021-11-13 18:04:58,632 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-13 18:04:58,632 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [252475599] [2021-11-13 18:04:58,632 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 18:04:58,632 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-13 18:04:58,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-13 18:04:58,645 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-13 18:04:58,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-13 18:04:58,659 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-11-13 18:04:58,662 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 18:04:58,662 INFO L85 PathProgramCache]: Analyzing trace with hash 736222132, now seen corresponding path program 1 times [2021-11-13 18:04:58,662 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-13 18:04:58,663 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1345161204] [2021-11-13 18:04:58,663 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 18:04:58,664 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-13 18:04:58,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-13 18:04:58,702 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-13 18:04:58,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-13 18:04:58,761 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-11-13 18:04:59,819 INFO L210 LassoAnalysis]: Preferences: [2021-11-13 18:04:59,819 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-11-13 18:04:59,819 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-11-13 18:04:59,819 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-11-13 18:04:59,819 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2021-11-13 18:04:59,820 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-13 18:04:59,820 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-11-13 18:04:59,820 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-11-13 18:04:59,820 INFO L133 ssoRankerPreferences]: Filename of dumped script: strcspn.i_Iteration3_Lasso [2021-11-13 18:04:59,820 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-11-13 18:04:59,820 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-11-13 18:04:59,825 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-13 18:04:59,831 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-13 18:04:59,835 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-13 18:04:59,838 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-13 18:04:59,842 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-13 18:04:59,845 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-13 18:05:00,403 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-13 18:05:00,406 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-13 18:05:00,410 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-13 18:05:00,414 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-13 18:05:00,417 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-13 18:05:00,421 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-13 18:05:00,423 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-13 18:05:00,425 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-13 18:05:00,427 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-13 18:05:00,430 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-13 18:05:00,432 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-13 18:05:00,438 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-13 18:05:01,046 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-11-13 18:05:01,047 INFO L490 LassoAnalysis]: Using template 'affine'. [2021-11-13 18:05:01,047 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-13 18:05:01,047 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_252716b3-0bc5-4342-9502-c4579df3009a/bin/uautomizer-YU5uOKAj3y/z3 [2021-11-13 18:05:01,052 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_252716b3-0bc5-4342-9502-c4579df3009a/bin/uautomizer-YU5uOKAj3y/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-13 18:05:01,062 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 [2021-11-13 18:05:01,074 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-13 18:05:01,074 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-11-13 18:05:01,074 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-13 18:05:01,074 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-13 18:05:01,074 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-13 18:05:01,075 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-11-13 18:05:01,075 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-11-13 18:05:01,077 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_252716b3-0bc5-4342-9502-c4579df3009a/bin/uautomizer-YU5uOKAj3y/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Waiting until timeout for monitored process [2021-11-13 18:05:01,093 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-11-13 18:05:01,138 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_252716b3-0bc5-4342-9502-c4579df3009a/bin/uautomizer-YU5uOKAj3y/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Forceful destruction successful, exit code 0 [2021-11-13 18:05:01,138 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-13 18:05:01,138 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_252716b3-0bc5-4342-9502-c4579df3009a/bin/uautomizer-YU5uOKAj3y/z3 [2021-11-13 18:05:01,140 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_252716b3-0bc5-4342-9502-c4579df3009a/bin/uautomizer-YU5uOKAj3y/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-13 18:05:01,150 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-11-13 18:05:01,161 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-13 18:05:01,161 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-13 18:05:01,162 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-13 18:05:01,162 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-13 18:05:01,164 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-11-13 18:05:01,164 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-11-13 18:05:01,167 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_252716b3-0bc5-4342-9502-c4579df3009a/bin/uautomizer-YU5uOKAj3y/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (14)] Waiting until timeout for monitored process [2021-11-13 18:05:01,181 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-11-13 18:05:01,226 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_252716b3-0bc5-4342-9502-c4579df3009a/bin/uautomizer-YU5uOKAj3y/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (14)] Forceful destruction successful, exit code 0 [2021-11-13 18:05:01,229 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-13 18:05:01,229 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_252716b3-0bc5-4342-9502-c4579df3009a/bin/uautomizer-YU5uOKAj3y/z3 [2021-11-13 18:05:01,230 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_252716b3-0bc5-4342-9502-c4579df3009a/bin/uautomizer-YU5uOKAj3y/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-13 18:05:01,237 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-11-13 18:05:01,249 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-13 18:05:01,249 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-11-13 18:05:01,249 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-13 18:05:01,250 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-13 18:05:01,250 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-13 18:05:01,250 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-11-13 18:05:01,250 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-11-13 18:05:01,252 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_252716b3-0bc5-4342-9502-c4579df3009a/bin/uautomizer-YU5uOKAj3y/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (15)] Waiting until timeout for monitored process [2021-11-13 18:05:01,265 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-11-13 18:05:01,313 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_252716b3-0bc5-4342-9502-c4579df3009a/bin/uautomizer-YU5uOKAj3y/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (15)] Forceful destruction successful, exit code 0 [2021-11-13 18:05:01,313 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-13 18:05:01,314 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_252716b3-0bc5-4342-9502-c4579df3009a/bin/uautomizer-YU5uOKAj3y/z3 [2021-11-13 18:05:01,315 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_252716b3-0bc5-4342-9502-c4579df3009a/bin/uautomizer-YU5uOKAj3y/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-13 18:05:01,321 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_252716b3-0bc5-4342-9502-c4579df3009a/bin/uautomizer-YU5uOKAj3y/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (16)] Waiting until timeout for monitored process [2021-11-13 18:05:01,322 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-11-13 18:05:01,334 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-13 18:05:01,335 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-13 18:05:01,335 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-13 18:05:01,335 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-13 18:05:01,337 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-11-13 18:05:01,337 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-11-13 18:05:01,365 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-11-13 18:05:01,402 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_252716b3-0bc5-4342-9502-c4579df3009a/bin/uautomizer-YU5uOKAj3y/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (16)] Forceful destruction successful, exit code 0 [2021-11-13 18:05:01,402 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-13 18:05:01,402 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_252716b3-0bc5-4342-9502-c4579df3009a/bin/uautomizer-YU5uOKAj3y/z3 [2021-11-13 18:05:01,403 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_252716b3-0bc5-4342-9502-c4579df3009a/bin/uautomizer-YU5uOKAj3y/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-13 18:05:01,407 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_252716b3-0bc5-4342-9502-c4579df3009a/bin/uautomizer-YU5uOKAj3y/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (17)] Waiting until timeout for monitored process [2021-11-13 18:05:01,407 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-11-13 18:05:01,417 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-13 18:05:01,417 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-11-13 18:05:01,417 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-13 18:05:01,417 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-13 18:05:01,417 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-13 18:05:01,418 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-11-13 18:05:01,418 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-11-13 18:05:01,419 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-11-13 18:05:01,445 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_252716b3-0bc5-4342-9502-c4579df3009a/bin/uautomizer-YU5uOKAj3y/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (17)] Forceful destruction successful, exit code 0 [2021-11-13 18:05:01,445 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-13 18:05:01,445 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_252716b3-0bc5-4342-9502-c4579df3009a/bin/uautomizer-YU5uOKAj3y/z3 [2021-11-13 18:05:01,446 INFO L229 MonitoredProcess]: Starting monitored process 18 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_252716b3-0bc5-4342-9502-c4579df3009a/bin/uautomizer-YU5uOKAj3y/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-13 18:05:01,447 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_252716b3-0bc5-4342-9502-c4579df3009a/bin/uautomizer-YU5uOKAj3y/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (18)] Waiting until timeout for monitored process [2021-11-13 18:05:01,448 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-11-13 18:05:01,459 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-13 18:05:01,459 INFO L203 nArgumentSynthesizer]: 2 stem disjuncts [2021-11-13 18:05:01,460 INFO L204 nArgumentSynthesizer]: 4 loop disjuncts [2021-11-13 18:05:01,460 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-13 18:05:01,487 INFO L401 nArgumentSynthesizer]: We have 56 Motzkin's Theorem applications. [2021-11-13 18:05:01,487 INFO L402 nArgumentSynthesizer]: A total of 8 supporting invariants were added. [2021-11-13 18:05:01,551 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-11-13 18:05:01,597 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_252716b3-0bc5-4342-9502-c4579df3009a/bin/uautomizer-YU5uOKAj3y/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (18)] Forceful destruction successful, exit code 0 [2021-11-13 18:05:01,598 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-13 18:05:01,598 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_252716b3-0bc5-4342-9502-c4579df3009a/bin/uautomizer-YU5uOKAj3y/z3 [2021-11-13 18:05:01,599 INFO L229 MonitoredProcess]: Starting monitored process 19 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_252716b3-0bc5-4342-9502-c4579df3009a/bin/uautomizer-YU5uOKAj3y/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-13 18:05:01,610 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-11-13 18:05:01,622 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-13 18:05:01,622 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-13 18:05:01,622 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-13 18:05:01,623 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-13 18:05:01,625 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-11-13 18:05:01,625 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-11-13 18:05:01,628 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_252716b3-0bc5-4342-9502-c4579df3009a/bin/uautomizer-YU5uOKAj3y/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (19)] Waiting until timeout for monitored process [2021-11-13 18:05:01,637 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-11-13 18:05:01,685 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_252716b3-0bc5-4342-9502-c4579df3009a/bin/uautomizer-YU5uOKAj3y/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (19)] Forceful destruction successful, exit code 0 [2021-11-13 18:05:01,685 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-13 18:05:01,686 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_252716b3-0bc5-4342-9502-c4579df3009a/bin/uautomizer-YU5uOKAj3y/z3 [2021-11-13 18:05:01,687 INFO L229 MonitoredProcess]: Starting monitored process 20 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_252716b3-0bc5-4342-9502-c4579df3009a/bin/uautomizer-YU5uOKAj3y/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-13 18:05:01,699 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-11-13 18:05:01,710 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-13 18:05:01,711 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-13 18:05:01,711 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-13 18:05:01,711 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-13 18:05:01,715 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-11-13 18:05:01,715 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-11-13 18:05:01,718 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_252716b3-0bc5-4342-9502-c4579df3009a/bin/uautomizer-YU5uOKAj3y/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (20)] Waiting until timeout for monitored process [2021-11-13 18:05:01,733 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-11-13 18:05:01,780 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_252716b3-0bc5-4342-9502-c4579df3009a/bin/uautomizer-YU5uOKAj3y/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (20)] Forceful destruction successful, exit code 0 [2021-11-13 18:05:01,780 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-13 18:05:01,781 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_252716b3-0bc5-4342-9502-c4579df3009a/bin/uautomizer-YU5uOKAj3y/z3 [2021-11-13 18:05:01,782 INFO L229 MonitoredProcess]: Starting monitored process 21 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_252716b3-0bc5-4342-9502-c4579df3009a/bin/uautomizer-YU5uOKAj3y/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-13 18:05:01,792 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-11-13 18:05:01,803 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-13 18:05:01,804 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-13 18:05:01,804 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-13 18:05:01,804 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-13 18:05:01,806 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-11-13 18:05:01,806 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-11-13 18:05:01,810 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_252716b3-0bc5-4342-9502-c4579df3009a/bin/uautomizer-YU5uOKAj3y/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (21)] Waiting until timeout for monitored process [2021-11-13 18:05:01,821 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-11-13 18:05:01,866 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_252716b3-0bc5-4342-9502-c4579df3009a/bin/uautomizer-YU5uOKAj3y/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (21)] Forceful destruction successful, exit code 0 [2021-11-13 18:05:01,866 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-13 18:05:01,867 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_252716b3-0bc5-4342-9502-c4579df3009a/bin/uautomizer-YU5uOKAj3y/z3 [2021-11-13 18:05:01,868 INFO L229 MonitoredProcess]: Starting monitored process 22 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_252716b3-0bc5-4342-9502-c4579df3009a/bin/uautomizer-YU5uOKAj3y/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-13 18:05:01,871 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-11-13 18:05:01,882 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-13 18:05:01,883 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-13 18:05:01,883 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-13 18:05:01,883 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-13 18:05:01,887 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-11-13 18:05:01,887 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-11-13 18:05:01,890 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_252716b3-0bc5-4342-9502-c4579df3009a/bin/uautomizer-YU5uOKAj3y/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (22)] Waiting until timeout for monitored process [2021-11-13 18:05:01,905 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-11-13 18:05:01,950 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_252716b3-0bc5-4342-9502-c4579df3009a/bin/uautomizer-YU5uOKAj3y/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (22)] Forceful destruction successful, exit code 0 [2021-11-13 18:05:01,951 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-13 18:05:01,951 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_252716b3-0bc5-4342-9502-c4579df3009a/bin/uautomizer-YU5uOKAj3y/z3 [2021-11-13 18:05:01,952 INFO L229 MonitoredProcess]: Starting monitored process 23 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_252716b3-0bc5-4342-9502-c4579df3009a/bin/uautomizer-YU5uOKAj3y/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-13 18:05:01,955 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-11-13 18:05:01,966 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_252716b3-0bc5-4342-9502-c4579df3009a/bin/uautomizer-YU5uOKAj3y/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (23)] Waiting until timeout for monitored process [2021-11-13 18:05:01,967 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-13 18:05:01,967 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-13 18:05:01,968 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-13 18:05:01,968 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-13 18:05:01,979 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-11-13 18:05:01,979 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-11-13 18:05:02,001 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-11-13 18:05:02,044 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_252716b3-0bc5-4342-9502-c4579df3009a/bin/uautomizer-YU5uOKAj3y/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (23)] Forceful destruction successful, exit code 0 [2021-11-13 18:05:02,045 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-13 18:05:02,045 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_252716b3-0bc5-4342-9502-c4579df3009a/bin/uautomizer-YU5uOKAj3y/z3 [2021-11-13 18:05:02,052 INFO L229 MonitoredProcess]: Starting monitored process 24 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_252716b3-0bc5-4342-9502-c4579df3009a/bin/uautomizer-YU5uOKAj3y/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-13 18:05:02,058 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-11-13 18:05:02,071 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-13 18:05:02,071 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-13 18:05:02,071 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-13 18:05:02,072 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-13 18:05:02,084 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_252716b3-0bc5-4342-9502-c4579df3009a/bin/uautomizer-YU5uOKAj3y/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (24)] Waiting until timeout for monitored process [2021-11-13 18:05:02,097 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-11-13 18:05:02,097 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-11-13 18:05:02,127 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2021-11-13 18:05:02,226 INFO L443 ModelExtractionUtils]: Simplification made 23 calls to the SMT solver. [2021-11-13 18:05:02,226 INFO L444 ModelExtractionUtils]: 31 out of 49 variables were initially zero. Simplification set additionally 14 variables to zero. [2021-11-13 18:05:02,227 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-13 18:05:02,227 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_252716b3-0bc5-4342-9502-c4579df3009a/bin/uautomizer-YU5uOKAj3y/z3 [2021-11-13 18:05:02,229 INFO L229 MonitoredProcess]: Starting monitored process 25 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_252716b3-0bc5-4342-9502-c4579df3009a/bin/uautomizer-YU5uOKAj3y/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-13 18:05:02,234 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2021-11-13 18:05:02,246 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_252716b3-0bc5-4342-9502-c4579df3009a/bin/uautomizer-YU5uOKAj3y/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (25)] Waiting until timeout for monitored process [2021-11-13 18:05:02,260 INFO L438 nArgumentSynthesizer]: Removed 1 redundant supporting invariants from a total of 2. [2021-11-13 18:05:02,261 INFO L513 LassoAnalysis]: Proved termination. [2021-11-13 18:05:02,261 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(v_rep(select #length ULTIMATE.start_main_#t~malloc12#1.base)_2, ULTIMATE.start_strcspn_~i~0#1) = 1*v_rep(select #length ULTIMATE.start_main_#t~malloc12#1.base)_2 - 1*ULTIMATE.start_strcspn_~i~0#1 Supporting invariants [1*ULTIMATE.start_strcspn_~reject#1.offset >= 0] [2021-11-13 18:05:02,310 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_252716b3-0bc5-4342-9502-c4579df3009a/bin/uautomizer-YU5uOKAj3y/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (24)] Forceful destruction successful, exit code 0 [2021-11-13 18:05:02,398 INFO L297 tatePredicateManager]: 17 out of 19 supporting invariants were superfluous and have been removed [2021-11-13 18:05:02,434 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 18:05:02,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:05:02,467 INFO L263 TraceCheckSpWp]: Trace formula consists of 74 conjuncts, 12 conjunts are in the unsatisfiable core [2021-11-13 18:05:02,468 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-13 18:05:02,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:05:02,562 INFO L263 TraceCheckSpWp]: Trace formula consists of 27 conjuncts, 7 conjunts are in the unsatisfiable core [2021-11-13 18:05:02,564 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-13 18:05:02,644 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-13 18:05:02,645 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.2 stem predicates 2 loop predicates [2021-11-13 18:05:02,645 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 18 states and 21 transitions. cyclomatic complexity: 5 Second operand has 4 states, 4 states have (on average 2.5) internal successors, (10), 4 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-13 18:05:02,710 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 18 states and 21 transitions. cyclomatic complexity: 5. 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 45 states and 51 transitions. Complement of second has 6 states. [2021-11-13 18:05:02,711 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 2 stem states 1 non-accepting loop states 1 accepting loop states [2021-11-13 18:05:02,714 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4 states, 4 states have (on average 2.5) internal successors, (10), 4 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-13 18:05:02,715 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 14 transitions. [2021-11-13 18:05:02,716 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 14 transitions. Stem has 6 letters. Loop has 4 letters. [2021-11-13 18:05:02,716 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-11-13 18:05:02,716 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 14 transitions. Stem has 10 letters. Loop has 4 letters. [2021-11-13 18:05:02,717 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-11-13 18:05:02,717 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 14 transitions. Stem has 6 letters. Loop has 8 letters. [2021-11-13 18:05:02,718 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-11-13 18:05:02,719 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 45 states and 51 transitions. [2021-11-13 18:05:02,731 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2021-11-13 18:05:02,733 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 45 states to 29 states and 33 transitions. [2021-11-13 18:05:02,733 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 11 [2021-11-13 18:05:02,733 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 11 [2021-11-13 18:05:02,733 INFO L73 IsDeterministic]: Start isDeterministic. Operand 29 states and 33 transitions. [2021-11-13 18:05:02,734 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2021-11-13 18:05:02,734 INFO L681 BuchiCegarLoop]: Abstraction has 29 states and 33 transitions. [2021-11-13 18:05:02,734 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29 states and 33 transitions. [2021-11-13 18:05:02,738 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29 to 24. [2021-11-13 18:05:02,738 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24 states, 24 states have (on average 1.125) internal successors, (27), 23 states have internal predecessors, (27), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-13 18:05:02,740 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 24 states and 27 transitions. [2021-11-13 18:05:02,740 INFO L704 BuchiCegarLoop]: Abstraction has 24 states and 27 transitions. [2021-11-13 18:05:02,741 INFO L587 BuchiCegarLoop]: Abstraction has 24 states and 27 transitions. [2021-11-13 18:05:02,741 INFO L425 BuchiCegarLoop]: ======== Iteration 4============ [2021-11-13 18:05:02,741 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 24 states and 27 transitions. [2021-11-13 18:05:02,743 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2021-11-13 18:05:02,743 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-11-13 18:05:02,743 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-11-13 18:05:02,744 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-13 18:05:02,744 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2021-11-13 18:05:02,745 INFO L791 eck$LassoCheckResult]: Stem: 393#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier; 394#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet9#1, main_#t~malloc10#1.base, main_#t~malloc10#1.offset, main_#t~nondet11#1, main_#t~malloc12#1.base, main_#t~malloc12#1.offset, main_#t~ret13#1, main_~in_len~0#1, main_~in~0#1.base, main_~in~0#1.offset, main_~out_len~0#1, main_~out~0#1.base, main_~out~0#1.offset;main_~in_len~0#1 := main_#t~nondet9#1;havoc main_#t~nondet9#1; 409#L519 assume !(main_~in_len~0#1 < 1);call main_#t~malloc10#1.base, main_#t~malloc10#1.offset := #Ultimate.allocOnStack(main_~in_len~0#1);main_~in~0#1.base, main_~in~0#1.offset := main_#t~malloc10#1.base, main_#t~malloc10#1.offset;call write~int(0, main_~in~0#1.base, main_~in~0#1.offset + (main_~in_len~0#1 - 1), 1);main_~out_len~0#1 := main_#t~nondet11#1;havoc main_#t~nondet11#1; 401#L523 assume !(main_~out_len~0#1 < 1);call main_#t~malloc12#1.base, main_#t~malloc12#1.offset := #Ultimate.allocOnStack(main_~out_len~0#1);main_~out~0#1.base, main_~out~0#1.offset := main_#t~malloc12#1.base, main_#t~malloc12#1.offset;call write~int(0, main_~out~0#1.base, main_~out~0#1.offset + (main_~out_len~0#1 - 1), 1);assume { :begin_inline_strcspn } true;strcspn_#in~s#1.base, strcspn_#in~s#1.offset, strcspn_#in~reject#1.base, strcspn_#in~reject#1.offset := main_~in~0#1.base, main_~in~0#1.offset, main_~out~0#1.base, main_~out~0#1.offset;havoc strcspn_#res#1;havoc strcspn_#t~mem4#1, strcspn_#t~mem5#1, strcspn_#t~pre3#1, strcspn_#t~mem6#1, strcspn_#t~pre7#1, strcspn_#t~pre2#1.base, strcspn_#t~pre2#1.offset, strcspn_#t~mem8#1, strcspn_~s#1.base, strcspn_~s#1.offset, strcspn_~reject#1.base, strcspn_~reject#1.offset, strcspn_~l~0#1, strcspn_~i~0#1;strcspn_~s#1.base, strcspn_~s#1.offset := strcspn_#in~s#1.base, strcspn_#in~s#1.offset;strcspn_~reject#1.base, strcspn_~reject#1.offset := strcspn_#in~reject#1.base, strcspn_#in~reject#1.offset;strcspn_~l~0#1 := 0;havoc strcspn_~i~0#1; 402#L510-4 call strcspn_#t~mem8#1 := read~int(strcspn_~s#1.base, strcspn_~s#1.offset, 1); 411#L510-1 assume !!(0 != strcspn_#t~mem8#1);havoc strcspn_#t~mem8#1;strcspn_~i~0#1 := 0; 415#L511-4 call strcspn_#t~mem6#1 := read~int(strcspn_~reject#1.base, strcspn_~reject#1.offset + strcspn_~i~0#1, 1); 412#L511-1 assume !(0 != strcspn_#t~mem6#1);havoc strcspn_#t~mem6#1; 410#L511-5 strcspn_#t~pre7#1 := 1 + strcspn_~l~0#1;strcspn_~l~0#1 := 1 + strcspn_~l~0#1;havoc strcspn_#t~pre7#1; 399#L510-3 strcspn_#t~pre2#1.base, strcspn_#t~pre2#1.offset := strcspn_~s#1.base, 1 + strcspn_~s#1.offset;strcspn_~s#1.base, strcspn_~s#1.offset := strcspn_~s#1.base, 1 + strcspn_~s#1.offset;havoc strcspn_#t~pre2#1.base, strcspn_#t~pre2#1.offset; 400#L510-4 call strcspn_#t~mem8#1 := read~int(strcspn_~s#1.base, strcspn_~s#1.offset, 1); 403#L510-1 assume !!(0 != strcspn_#t~mem8#1);havoc strcspn_#t~mem8#1;strcspn_~i~0#1 := 0; 395#L511-4 [2021-11-13 18:05:02,745 INFO L793 eck$LassoCheckResult]: Loop: 395#L511-4 call strcspn_#t~mem6#1 := read~int(strcspn_~reject#1.base, strcspn_~reject#1.offset + strcspn_~i~0#1, 1); 396#L511-1 assume !!(0 != strcspn_#t~mem6#1);havoc strcspn_#t~mem6#1;call strcspn_#t~mem4#1 := read~int(strcspn_~s#1.base, strcspn_~s#1.offset, 1);call strcspn_#t~mem5#1 := read~int(strcspn_~reject#1.base, strcspn_~reject#1.offset + strcspn_~i~0#1, 1); 405#L512 assume !(strcspn_#t~mem4#1 == strcspn_#t~mem5#1);havoc strcspn_#t~mem4#1;havoc strcspn_#t~mem5#1; 406#L511-3 strcspn_#t~pre3#1 := 1 + strcspn_~i~0#1;strcspn_~i~0#1 := 1 + strcspn_~i~0#1;havoc strcspn_#t~pre3#1; 395#L511-4 [2021-11-13 18:05:02,745 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 18:05:02,746 INFO L85 PathProgramCache]: Analyzing trace with hash -1161797001, now seen corresponding path program 2 times [2021-11-13 18:05:02,750 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-13 18:05:02,751 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1817815055] [2021-11-13 18:05:02,751 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 18:05:02,751 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-13 18:05:02,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-13 18:05:02,799 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-13 18:05:02,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-13 18:05:02,834 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-11-13 18:05:02,836 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 18:05:02,837 INFO L85 PathProgramCache]: Analyzing trace with hash 1698248, now seen corresponding path program 2 times [2021-11-13 18:05:02,837 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-13 18:05:02,838 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [472596994] [2021-11-13 18:05:02,838 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 18:05:02,839 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-13 18:05:02,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-13 18:05:02,846 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-13 18:05:02,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-13 18:05:02,864 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-11-13 18:05:02,865 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 18:05:02,866 INFO L85 PathProgramCache]: Analyzing trace with hash -967302850, now seen corresponding path program 1 times [2021-11-13 18:05:02,866 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-13 18:05:02,867 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1159467373] [2021-11-13 18:05:02,868 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 18:05:02,868 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-13 18:05:02,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:05:03,125 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 3 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-13 18:05:03,126 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-13 18:05:03,126 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1159467373] [2021-11-13 18:05:03,126 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1159467373] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-13 18:05:03,126 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2116892448] [2021-11-13 18:05:03,127 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 18:05:03,128 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-13 18:05:03,128 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_252716b3-0bc5-4342-9502-c4579df3009a/bin/uautomizer-YU5uOKAj3y/z3 [2021-11-13 18:05:03,129 INFO L229 MonitoredProcess]: Starting monitored process 26 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_252716b3-0bc5-4342-9502-c4579df3009a/bin/uautomizer-YU5uOKAj3y/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-13 18:05:03,149 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_252716b3-0bc5-4342-9502-c4579df3009a/bin/uautomizer-YU5uOKAj3y/z3 -smt2 -in SMTLIB2_COMPLIANT=true (26)] Waiting until timeout for monitored process [2021-11-13 18:05:03,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:05:03,214 INFO L263 TraceCheckSpWp]: Trace formula consists of 119 conjuncts, 19 conjunts are in the unsatisfiable core [2021-11-13 18:05:03,216 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-13 18:05:03,337 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 7 [2021-11-13 18:05:03,352 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 3 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-13 18:05:03,352 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-13 18:05:03,457 INFO L354 Elim1Store]: treesize reduction 7, result has 30.0 percent of original size [2021-11-13 18:05:03,457 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 18 treesize of output 11 [2021-11-13 18:05:03,481 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 2 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-13 18:05:03,481 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2116892448] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-13 18:05:03,482 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-11-13 18:05:03,482 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8, 7] total 13 [2021-11-13 18:05:03,482 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1769793669] [2021-11-13 18:05:03,483 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-11-13 18:05:03,574 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-13 18:05:03,576 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2021-11-13 18:05:03,578 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=114, Unknown=0, NotChecked=0, Total=156 [2021-11-13 18:05:03,579 INFO L87 Difference]: Start difference. First operand 24 states and 27 transitions. cyclomatic complexity: 6 Second operand has 13 states, 13 states have (on average 2.1538461538461537) internal successors, (28), 13 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-13 18:05:03,718 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-13 18:05:03,718 INFO L93 Difference]: Finished difference Result 46 states and 51 transitions. [2021-11-13 18:05:03,719 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-13 18:05:03,720 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 46 states and 51 transitions. [2021-11-13 18:05:03,724 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2021-11-13 18:05:03,725 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 46 states to 36 states and 39 transitions. [2021-11-13 18:05:03,725 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 14 [2021-11-13 18:05:03,726 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 14 [2021-11-13 18:05:03,727 INFO L73 IsDeterministic]: Start isDeterministic. Operand 36 states and 39 transitions. [2021-11-13 18:05:03,727 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2021-11-13 18:05:03,727 INFO L681 BuchiCegarLoop]: Abstraction has 36 states and 39 transitions. [2021-11-13 18:05:03,728 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36 states and 39 transitions. [2021-11-13 18:05:03,732 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36 to 27. [2021-11-13 18:05:03,733 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 27 states, 27 states have (on average 1.1111111111111112) internal successors, (30), 26 states have internal predecessors, (30), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-13 18:05:03,735 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 27 states and 30 transitions. [2021-11-13 18:05:03,735 INFO L704 BuchiCegarLoop]: Abstraction has 27 states and 30 transitions. [2021-11-13 18:05:03,735 INFO L587 BuchiCegarLoop]: Abstraction has 27 states and 30 transitions. [2021-11-13 18:05:03,736 INFO L425 BuchiCegarLoop]: ======== Iteration 5============ [2021-11-13 18:05:03,736 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 27 states and 30 transitions. [2021-11-13 18:05:03,738 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2021-11-13 18:05:03,738 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-11-13 18:05:03,738 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-11-13 18:05:03,740 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-13 18:05:03,740 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2021-11-13 18:05:03,740 INFO L791 eck$LassoCheckResult]: Stem: 575#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier; 576#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet9#1, main_#t~malloc10#1.base, main_#t~malloc10#1.offset, main_#t~nondet11#1, main_#t~malloc12#1.base, main_#t~malloc12#1.offset, main_#t~ret13#1, main_~in_len~0#1, main_~in~0#1.base, main_~in~0#1.offset, main_~out_len~0#1, main_~out~0#1.base, main_~out~0#1.offset;main_~in_len~0#1 := main_#t~nondet9#1;havoc main_#t~nondet9#1; 588#L519 assume !(main_~in_len~0#1 < 1);call main_#t~malloc10#1.base, main_#t~malloc10#1.offset := #Ultimate.allocOnStack(main_~in_len~0#1);main_~in~0#1.base, main_~in~0#1.offset := main_#t~malloc10#1.base, main_#t~malloc10#1.offset;call write~int(0, main_~in~0#1.base, main_~in~0#1.offset + (main_~in_len~0#1 - 1), 1);main_~out_len~0#1 := main_#t~nondet11#1;havoc main_#t~nondet11#1; 581#L523 assume !(main_~out_len~0#1 < 1);call main_#t~malloc12#1.base, main_#t~malloc12#1.offset := #Ultimate.allocOnStack(main_~out_len~0#1);main_~out~0#1.base, main_~out~0#1.offset := main_#t~malloc12#1.base, main_#t~malloc12#1.offset;call write~int(0, main_~out~0#1.base, main_~out~0#1.offset + (main_~out_len~0#1 - 1), 1);assume { :begin_inline_strcspn } true;strcspn_#in~s#1.base, strcspn_#in~s#1.offset, strcspn_#in~reject#1.base, strcspn_#in~reject#1.offset := main_~in~0#1.base, main_~in~0#1.offset, main_~out~0#1.base, main_~out~0#1.offset;havoc strcspn_#res#1;havoc strcspn_#t~mem4#1, strcspn_#t~mem5#1, strcspn_#t~pre3#1, strcspn_#t~mem6#1, strcspn_#t~pre7#1, strcspn_#t~pre2#1.base, strcspn_#t~pre2#1.offset, strcspn_#t~mem8#1, strcspn_~s#1.base, strcspn_~s#1.offset, strcspn_~reject#1.base, strcspn_~reject#1.offset, strcspn_~l~0#1, strcspn_~i~0#1;strcspn_~s#1.base, strcspn_~s#1.offset := strcspn_#in~s#1.base, strcspn_#in~s#1.offset;strcspn_~reject#1.base, strcspn_~reject#1.offset := strcspn_#in~reject#1.base, strcspn_#in~reject#1.offset;strcspn_~l~0#1 := 0;havoc strcspn_~i~0#1; 582#L510-4 call strcspn_#t~mem8#1 := read~int(strcspn_~s#1.base, strcspn_~s#1.offset, 1); 593#L510-1 assume !!(0 != strcspn_#t~mem8#1);havoc strcspn_#t~mem8#1;strcspn_~i~0#1 := 0; 579#L511-4 call strcspn_#t~mem6#1 := read~int(strcspn_~reject#1.base, strcspn_~reject#1.offset + strcspn_~i~0#1, 1); 580#L511-1 assume !!(0 != strcspn_#t~mem6#1);havoc strcspn_#t~mem6#1;call strcspn_#t~mem4#1 := read~int(strcspn_~s#1.base, strcspn_~s#1.offset, 1);call strcspn_#t~mem5#1 := read~int(strcspn_~reject#1.base, strcspn_~reject#1.offset + strcspn_~i~0#1, 1); 591#L512 assume !(strcspn_#t~mem4#1 == strcspn_#t~mem5#1);havoc strcspn_#t~mem4#1;havoc strcspn_#t~mem5#1; 592#L511-3 strcspn_#t~pre3#1 := 1 + strcspn_~i~0#1;strcspn_~i~0#1 := 1 + strcspn_~i~0#1;havoc strcspn_#t~pre3#1; 595#L511-4 call strcspn_#t~mem6#1 := read~int(strcspn_~reject#1.base, strcspn_~reject#1.offset + strcspn_~i~0#1, 1); 596#L511-1 assume !(0 != strcspn_#t~mem6#1);havoc strcspn_#t~mem6#1; 594#L511-5 strcspn_#t~pre7#1 := 1 + strcspn_~l~0#1;strcspn_~l~0#1 := 1 + strcspn_~l~0#1;havoc strcspn_#t~pre7#1; 583#L510-3 strcspn_#t~pre2#1.base, strcspn_#t~pre2#1.offset := strcspn_~s#1.base, 1 + strcspn_~s#1.offset;strcspn_~s#1.base, strcspn_~s#1.offset := strcspn_~s#1.base, 1 + strcspn_~s#1.offset;havoc strcspn_#t~pre2#1.base, strcspn_#t~pre2#1.offset; 584#L510-4 call strcspn_#t~mem8#1 := read~int(strcspn_~s#1.base, strcspn_~s#1.offset, 1); 585#L510-1 assume !!(0 != strcspn_#t~mem8#1);havoc strcspn_#t~mem8#1;strcspn_~i~0#1 := 0; 577#L511-4 [2021-11-13 18:05:03,741 INFO L793 eck$LassoCheckResult]: Loop: 577#L511-4 call strcspn_#t~mem6#1 := read~int(strcspn_~reject#1.base, strcspn_~reject#1.offset + strcspn_~i~0#1, 1); 578#L511-1 assume !!(0 != strcspn_#t~mem6#1);havoc strcspn_#t~mem6#1;call strcspn_#t~mem4#1 := read~int(strcspn_~s#1.base, strcspn_~s#1.offset, 1);call strcspn_#t~mem5#1 := read~int(strcspn_~reject#1.base, strcspn_~reject#1.offset + strcspn_~i~0#1, 1); 589#L512 assume !(strcspn_#t~mem4#1 == strcspn_#t~mem5#1);havoc strcspn_#t~mem4#1;havoc strcspn_#t~mem5#1; 590#L511-3 strcspn_#t~pre3#1 := 1 + strcspn_~i~0#1;strcspn_~i~0#1 := 1 + strcspn_~i~0#1;havoc strcspn_#t~pre3#1; 577#L511-4 [2021-11-13 18:05:03,741 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 18:05:03,742 INFO L85 PathProgramCache]: Analyzing trace with hash 1375356158, now seen corresponding path program 2 times [2021-11-13 18:05:03,742 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-13 18:05:03,742 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [643944201] [2021-11-13 18:05:03,742 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 18:05:03,743 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-13 18:05:03,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-13 18:05:03,766 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-13 18:05:03,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-13 18:05:03,816 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-11-13 18:05:03,818 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 18:05:03,819 INFO L85 PathProgramCache]: Analyzing trace with hash 1698248, now seen corresponding path program 3 times [2021-11-13 18:05:03,819 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-13 18:05:03,823 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [536314081] [2021-11-13 18:05:03,823 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 18:05:03,825 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-13 18:05:03,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-13 18:05:03,832 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-13 18:05:03,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-13 18:05:03,843 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-11-13 18:05:03,844 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 18:05:03,844 INFO L85 PathProgramCache]: Analyzing trace with hash -1858115515, now seen corresponding path program 3 times [2021-11-13 18:05:03,844 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-13 18:05:03,846 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [499934688] [2021-11-13 18:05:03,847 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 18:05:03,850 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-13 18:05:03,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-13 18:05:03,895 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-13 18:05:03,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-13 18:05:03,915 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-11-13 18:05:03,985 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_252716b3-0bc5-4342-9502-c4579df3009a/bin/uautomizer-YU5uOKAj3y/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (25)] Forceful destruction successful, exit code 0 [2021-11-13 18:05:05,269 INFO L210 LassoAnalysis]: Preferences: [2021-11-13 18:05:05,270 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-11-13 18:05:05,270 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-11-13 18:05:05,270 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-11-13 18:05:05,270 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2021-11-13 18:05:05,270 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-13 18:05:05,270 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-11-13 18:05:05,270 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-11-13 18:05:05,271 INFO L133 ssoRankerPreferences]: Filename of dumped script: strcspn.i_Iteration5_Lasso [2021-11-13 18:05:05,271 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-11-13 18:05:05,271 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-11-13 18:05:05,281 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-13 18:05:05,285 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-13 18:05:05,289 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-13 18:05:05,293 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-13 18:05:05,297 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-13 18:05:05,299 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-13 18:05:05,302 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-13 18:05:05,305 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-13 18:05:05,320 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-13 18:05:05,322 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-13 18:05:05,325 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-13 18:05:05,329 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-13 18:05:05,332 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-13 18:05:05,335 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-13 18:05:06,028 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-13 18:05:06,037 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-13 18:05:06,040 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-13 18:05:06,043 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-13 18:05:06,842 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-11-13 18:05:06,842 INFO L490 LassoAnalysis]: Using template 'affine'. [2021-11-13 18:05:06,843 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-13 18:05:06,843 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_252716b3-0bc5-4342-9502-c4579df3009a/bin/uautomizer-YU5uOKAj3y/z3 [2021-11-13 18:05:06,865 INFO L229 MonitoredProcess]: Starting monitored process 27 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_252716b3-0bc5-4342-9502-c4579df3009a/bin/uautomizer-YU5uOKAj3y/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-13 18:05:06,867 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-11-13 18:05:06,879 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-13 18:05:06,880 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-13 18:05:06,880 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-13 18:05:06,880 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-13 18:05:06,882 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-11-13 18:05:06,882 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-11-13 18:05:06,885 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_252716b3-0bc5-4342-9502-c4579df3009a/bin/uautomizer-YU5uOKAj3y/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (27)] Waiting until timeout for monitored process [2021-11-13 18:05:06,890 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-11-13 18:05:06,916 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_252716b3-0bc5-4342-9502-c4579df3009a/bin/uautomizer-YU5uOKAj3y/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (27)] Forceful destruction successful, exit code 0 [2021-11-13 18:05:06,917 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-13 18:05:06,917 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_252716b3-0bc5-4342-9502-c4579df3009a/bin/uautomizer-YU5uOKAj3y/z3 [2021-11-13 18:05:06,918 INFO L229 MonitoredProcess]: Starting monitored process 28 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_252716b3-0bc5-4342-9502-c4579df3009a/bin/uautomizer-YU5uOKAj3y/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-13 18:05:06,919 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-11-13 18:05:06,920 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_252716b3-0bc5-4342-9502-c4579df3009a/bin/uautomizer-YU5uOKAj3y/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (28)] Waiting until timeout for monitored process [2021-11-13 18:05:06,929 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-13 18:05:06,929 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-11-13 18:05:06,929 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-13 18:05:06,929 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-13 18:05:06,929 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-13 18:05:06,930 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-11-13 18:05:06,930 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-11-13 18:05:06,931 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-11-13 18:05:06,958 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_252716b3-0bc5-4342-9502-c4579df3009a/bin/uautomizer-YU5uOKAj3y/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (28)] Ended with exit code 0 [2021-11-13 18:05:06,958 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-13 18:05:06,958 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_252716b3-0bc5-4342-9502-c4579df3009a/bin/uautomizer-YU5uOKAj3y/z3 [2021-11-13 18:05:06,959 INFO L229 MonitoredProcess]: Starting monitored process 29 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_252716b3-0bc5-4342-9502-c4579df3009a/bin/uautomizer-YU5uOKAj3y/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-13 18:05:06,962 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_252716b3-0bc5-4342-9502-c4579df3009a/bin/uautomizer-YU5uOKAj3y/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (29)] Waiting until timeout for monitored process [2021-11-13 18:05:06,962 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-11-13 18:05:06,971 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-13 18:05:06,972 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-11-13 18:05:06,972 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-13 18:05:06,972 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-13 18:05:06,972 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-13 18:05:06,972 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-11-13 18:05:06,972 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-11-13 18:05:06,974 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-11-13 18:05:06,999 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_252716b3-0bc5-4342-9502-c4579df3009a/bin/uautomizer-YU5uOKAj3y/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (29)] Ended with exit code 0 [2021-11-13 18:05:07,000 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-13 18:05:07,000 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_252716b3-0bc5-4342-9502-c4579df3009a/bin/uautomizer-YU5uOKAj3y/z3 [2021-11-13 18:05:07,001 INFO L229 MonitoredProcess]: Starting monitored process 30 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_252716b3-0bc5-4342-9502-c4579df3009a/bin/uautomizer-YU5uOKAj3y/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-13 18:05:07,001 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_252716b3-0bc5-4342-9502-c4579df3009a/bin/uautomizer-YU5uOKAj3y/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (30)] Waiting until timeout for monitored process [2021-11-13 18:05:07,002 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-11-13 18:05:07,011 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-13 18:05:07,011 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-11-13 18:05:07,012 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-13 18:05:07,012 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-13 18:05:07,012 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-13 18:05:07,012 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-11-13 18:05:07,012 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-11-13 18:05:07,014 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-11-13 18:05:07,039 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_252716b3-0bc5-4342-9502-c4579df3009a/bin/uautomizer-YU5uOKAj3y/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (30)] Ended with exit code 0 [2021-11-13 18:05:07,040 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-13 18:05:07,040 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_252716b3-0bc5-4342-9502-c4579df3009a/bin/uautomizer-YU5uOKAj3y/z3 [2021-11-13 18:05:07,040 INFO L229 MonitoredProcess]: Starting monitored process 31 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_252716b3-0bc5-4342-9502-c4579df3009a/bin/uautomizer-YU5uOKAj3y/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-13 18:05:07,041 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_252716b3-0bc5-4342-9502-c4579df3009a/bin/uautomizer-YU5uOKAj3y/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (31)] Waiting until timeout for monitored process [2021-11-13 18:05:07,042 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-11-13 18:05:07,052 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-13 18:05:07,052 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-11-13 18:05:07,052 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-13 18:05:07,052 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-13 18:05:07,052 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-13 18:05:07,053 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-11-13 18:05:07,053 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-11-13 18:05:07,054 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-11-13 18:05:07,079 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_252716b3-0bc5-4342-9502-c4579df3009a/bin/uautomizer-YU5uOKAj3y/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (31)] Forceful destruction successful, exit code 0 [2021-11-13 18:05:07,079 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-13 18:05:07,079 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_252716b3-0bc5-4342-9502-c4579df3009a/bin/uautomizer-YU5uOKAj3y/z3 [2021-11-13 18:05:07,080 INFO L229 MonitoredProcess]: Starting monitored process 32 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_252716b3-0bc5-4342-9502-c4579df3009a/bin/uautomizer-YU5uOKAj3y/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-13 18:05:07,082 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_252716b3-0bc5-4342-9502-c4579df3009a/bin/uautomizer-YU5uOKAj3y/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (32)] Waiting until timeout for monitored process [2021-11-13 18:05:07,083 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-11-13 18:05:07,092 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-13 18:05:07,092 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-13 18:05:07,093 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-13 18:05:07,093 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-13 18:05:07,095 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-11-13 18:05:07,096 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-11-13 18:05:07,117 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-11-13 18:05:07,160 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_252716b3-0bc5-4342-9502-c4579df3009a/bin/uautomizer-YU5uOKAj3y/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (32)] Ended with exit code 0 [2021-11-13 18:05:07,160 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-13 18:05:07,161 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_252716b3-0bc5-4342-9502-c4579df3009a/bin/uautomizer-YU5uOKAj3y/z3 [2021-11-13 18:05:07,162 INFO L229 MonitoredProcess]: Starting monitored process 33 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_252716b3-0bc5-4342-9502-c4579df3009a/bin/uautomizer-YU5uOKAj3y/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-13 18:05:07,176 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 [2021-11-13 18:05:07,187 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-13 18:05:07,187 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-11-13 18:05:07,188 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-13 18:05:07,188 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-13 18:05:07,188 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-13 18:05:07,189 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-11-13 18:05:07,189 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-11-13 18:05:07,191 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_252716b3-0bc5-4342-9502-c4579df3009a/bin/uautomizer-YU5uOKAj3y/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (33)] Waiting until timeout for monitored process [2021-11-13 18:05:07,213 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-11-13 18:05:07,250 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_252716b3-0bc5-4342-9502-c4579df3009a/bin/uautomizer-YU5uOKAj3y/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (33)] Ended with exit code 0 [2021-11-13 18:05:07,251 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-13 18:05:07,251 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_252716b3-0bc5-4342-9502-c4579df3009a/bin/uautomizer-YU5uOKAj3y/z3 [2021-11-13 18:05:07,252 INFO L229 MonitoredProcess]: Starting monitored process 34 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_252716b3-0bc5-4342-9502-c4579df3009a/bin/uautomizer-YU5uOKAj3y/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-13 18:05:07,253 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_252716b3-0bc5-4342-9502-c4579df3009a/bin/uautomizer-YU5uOKAj3y/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (34)] Waiting until timeout for monitored process [2021-11-13 18:05:07,254 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-11-13 18:05:07,263 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-13 18:05:07,263 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-13 18:05:07,263 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-13 18:05:07,263 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-13 18:05:07,264 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-11-13 18:05:07,265 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-11-13 18:05:07,268 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-11-13 18:05:07,297 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_252716b3-0bc5-4342-9502-c4579df3009a/bin/uautomizer-YU5uOKAj3y/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (34)] Forceful destruction successful, exit code 0 [2021-11-13 18:05:07,298 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-13 18:05:07,298 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_252716b3-0bc5-4342-9502-c4579df3009a/bin/uautomizer-YU5uOKAj3y/z3 [2021-11-13 18:05:07,299 INFO L229 MonitoredProcess]: Starting monitored process 35 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_252716b3-0bc5-4342-9502-c4579df3009a/bin/uautomizer-YU5uOKAj3y/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-13 18:05:07,302 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_252716b3-0bc5-4342-9502-c4579df3009a/bin/uautomizer-YU5uOKAj3y/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (35)] Waiting until timeout for monitored process [2021-11-13 18:05:07,302 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-11-13 18:05:07,311 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-13 18:05:07,312 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-11-13 18:05:07,312 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-13 18:05:07,312 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-13 18:05:07,312 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-13 18:05:07,325 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-11-13 18:05:07,325 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-11-13 18:05:07,337 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-11-13 18:05:07,383 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_252716b3-0bc5-4342-9502-c4579df3009a/bin/uautomizer-YU5uOKAj3y/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (35)] Forceful destruction successful, exit code 0 [2021-11-13 18:05:07,384 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-13 18:05:07,384 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_252716b3-0bc5-4342-9502-c4579df3009a/bin/uautomizer-YU5uOKAj3y/z3 [2021-11-13 18:05:07,385 INFO L229 MonitoredProcess]: Starting monitored process 36 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_252716b3-0bc5-4342-9502-c4579df3009a/bin/uautomizer-YU5uOKAj3y/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-13 18:05:07,388 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-11-13 18:05:07,400 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-13 18:05:07,400 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-13 18:05:07,400 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-13 18:05:07,400 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-13 18:05:07,402 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-11-13 18:05:07,402 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-11-13 18:05:07,404 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_252716b3-0bc5-4342-9502-c4579df3009a/bin/uautomizer-YU5uOKAj3y/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (36)] Waiting until timeout for monitored process [2021-11-13 18:05:07,417 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-11-13 18:05:07,464 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_252716b3-0bc5-4342-9502-c4579df3009a/bin/uautomizer-YU5uOKAj3y/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (36)] Forceful destruction successful, exit code 0 [2021-11-13 18:05:07,465 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-13 18:05:07,465 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_252716b3-0bc5-4342-9502-c4579df3009a/bin/uautomizer-YU5uOKAj3y/z3 [2021-11-13 18:05:07,466 INFO L229 MonitoredProcess]: Starting monitored process 37 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_252716b3-0bc5-4342-9502-c4579df3009a/bin/uautomizer-YU5uOKAj3y/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-13 18:05:07,469 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-11-13 18:05:07,481 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-13 18:05:07,481 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-11-13 18:05:07,481 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-13 18:05:07,481 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-13 18:05:07,481 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-13 18:05:07,482 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-11-13 18:05:07,482 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-11-13 18:05:07,484 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_252716b3-0bc5-4342-9502-c4579df3009a/bin/uautomizer-YU5uOKAj3y/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (37)] Waiting until timeout for monitored process [2021-11-13 18:05:07,501 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-11-13 18:05:07,527 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_252716b3-0bc5-4342-9502-c4579df3009a/bin/uautomizer-YU5uOKAj3y/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (37)] Ended with exit code 0 [2021-11-13 18:05:07,528 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-13 18:05:07,528 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_252716b3-0bc5-4342-9502-c4579df3009a/bin/uautomizer-YU5uOKAj3y/z3 [2021-11-13 18:05:07,529 INFO L229 MonitoredProcess]: Starting monitored process 38 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_252716b3-0bc5-4342-9502-c4579df3009a/bin/uautomizer-YU5uOKAj3y/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-13 18:05:07,530 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_252716b3-0bc5-4342-9502-c4579df3009a/bin/uautomizer-YU5uOKAj3y/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (38)] Waiting until timeout for monitored process [2021-11-13 18:05:07,531 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-11-13 18:05:07,540 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-13 18:05:07,540 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-11-13 18:05:07,540 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-13 18:05:07,541 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-13 18:05:07,541 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-13 18:05:07,541 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-11-13 18:05:07,541 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-11-13 18:05:07,543 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-11-13 18:05:07,569 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_252716b3-0bc5-4342-9502-c4579df3009a/bin/uautomizer-YU5uOKAj3y/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (38)] Forceful destruction successful, exit code 0 [2021-11-13 18:05:07,569 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-13 18:05:07,569 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_252716b3-0bc5-4342-9502-c4579df3009a/bin/uautomizer-YU5uOKAj3y/z3 [2021-11-13 18:05:07,570 INFO L229 MonitoredProcess]: Starting monitored process 39 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_252716b3-0bc5-4342-9502-c4579df3009a/bin/uautomizer-YU5uOKAj3y/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-13 18:05:07,578 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-11-13 18:05:07,582 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_252716b3-0bc5-4342-9502-c4579df3009a/bin/uautomizer-YU5uOKAj3y/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (39)] Waiting until timeout for monitored process [2021-11-13 18:05:07,588 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-13 18:05:07,589 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-11-13 18:05:07,589 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-13 18:05:07,589 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-13 18:05:07,589 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-13 18:05:07,589 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-11-13 18:05:07,590 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-11-13 18:05:07,609 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-11-13 18:05:07,635 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_252716b3-0bc5-4342-9502-c4579df3009a/bin/uautomizer-YU5uOKAj3y/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (39)] Ended with exit code 0 [2021-11-13 18:05:07,636 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-13 18:05:07,636 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_252716b3-0bc5-4342-9502-c4579df3009a/bin/uautomizer-YU5uOKAj3y/z3 [2021-11-13 18:05:07,637 INFO L229 MonitoredProcess]: Starting monitored process 40 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_252716b3-0bc5-4342-9502-c4579df3009a/bin/uautomizer-YU5uOKAj3y/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-13 18:05:07,639 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_252716b3-0bc5-4342-9502-c4579df3009a/bin/uautomizer-YU5uOKAj3y/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (40)] Waiting until timeout for monitored process [2021-11-13 18:05:07,639 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-11-13 18:05:07,650 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-13 18:05:07,650 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-13 18:05:07,650 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-13 18:05:07,650 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-13 18:05:07,665 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-11-13 18:05:07,665 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-11-13 18:05:07,705 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2021-11-13 18:05:07,771 INFO L443 ModelExtractionUtils]: Simplification made 19 calls to the SMT solver. [2021-11-13 18:05:07,771 INFO L444 ModelExtractionUtils]: 16 out of 49 variables were initially zero. Simplification set additionally 30 variables to zero. [2021-11-13 18:05:07,772 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-13 18:05:07,772 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_252716b3-0bc5-4342-9502-c4579df3009a/bin/uautomizer-YU5uOKAj3y/z3 [2021-11-13 18:05:07,778 INFO L229 MonitoredProcess]: Starting monitored process 41 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_252716b3-0bc5-4342-9502-c4579df3009a/bin/uautomizer-YU5uOKAj3y/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-13 18:05:07,780 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2021-11-13 18:05:07,791 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_252716b3-0bc5-4342-9502-c4579df3009a/bin/uautomizer-YU5uOKAj3y/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (41)] Waiting until timeout for monitored process [2021-11-13 18:05:07,806 INFO L438 nArgumentSynthesizer]: Removed 2 redundant supporting invariants from a total of 2. [2021-11-13 18:05:07,806 INFO L513 LassoAnalysis]: Proved termination. [2021-11-13 18:05:07,807 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_strcspn_~i~0#1, v_rep(select #length ULTIMATE.start_strcspn_~reject#1.base)_3) = -2*ULTIMATE.start_strcspn_~i~0#1 + 3*v_rep(select #length ULTIMATE.start_strcspn_~reject#1.base)_3 Supporting invariants [] [2021-11-13 18:05:07,853 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_252716b3-0bc5-4342-9502-c4579df3009a/bin/uautomizer-YU5uOKAj3y/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (40)] Forceful destruction successful, exit code 0 [2021-11-13 18:05:08,001 INFO L297 tatePredicateManager]: 32 out of 33 supporting invariants were superfluous and have been removed [2021-11-13 18:05:08,066 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_252716b3-0bc5-4342-9502-c4579df3009a/bin/uautomizer-YU5uOKAj3y/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (41)] Forceful destruction successful, exit code 0 [2021-11-13 18:05:08,078 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 18:05:08,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:05:08,104 INFO L263 TraceCheckSpWp]: Trace formula consists of 119 conjuncts, 20 conjunts are in the unsatisfiable core [2021-11-13 18:05:08,105 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-13 18:05:08,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:05:08,341 INFO L263 TraceCheckSpWp]: Trace formula consists of 26 conjuncts, 8 conjunts are in the unsatisfiable core [2021-11-13 18:05:08,341 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-13 18:05:08,455 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-13 18:05:08,457 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.4 stem predicates 3 loop predicates [2021-11-13 18:05:08,458 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 27 states and 30 transitions. cyclomatic complexity: 6 Second operand has 7 states, 7 states have (on average 2.7142857142857144) internal successors, (19), 7 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-13 18:05:08,522 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 27 states and 30 transitions. cyclomatic complexity: 6. Second operand has 7 states, 7 states have (on average 2.7142857142857144) internal successors, (19), 7 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 27 states and 30 transitions. Complement of second has 5 states. [2021-11-13 18:05:08,523 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 3 stem states 0 non-accepting loop states 1 accepting loop states [2021-11-13 18:05:08,527 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7 states, 7 states have (on average 2.7142857142857144) internal successors, (19), 7 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-13 18:05:08,527 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 6 transitions. [2021-11-13 18:05:08,527 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 6 transitions. Stem has 16 letters. Loop has 4 letters. [2021-11-13 18:05:08,528 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-11-13 18:05:08,528 INFO L634 RefineBuchi]: Bad chosen interpolant automaton: word not accepted [2021-11-13 18:05:08,556 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 18:05:08,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:05:08,585 INFO L263 TraceCheckSpWp]: Trace formula consists of 119 conjuncts, 20 conjunts are in the unsatisfiable core [2021-11-13 18:05:08,587 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-13 18:05:08,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:05:08,781 INFO L263 TraceCheckSpWp]: Trace formula consists of 26 conjuncts, 8 conjunts are in the unsatisfiable core [2021-11-13 18:05:08,782 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-13 18:05:08,915 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-13 18:05:08,917 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and with honda bouncer for loop.4 stem predicates 3 loop predicates [2021-11-13 18:05:08,917 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 27 states and 30 transitions. cyclomatic complexity: 6 Second operand has 7 states, 7 states have (on average 2.7142857142857144) internal successors, (19), 7 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-13 18:05:08,974 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 27 states and 30 transitions. cyclomatic complexity: 6. Second operand has 7 states, 7 states have (on average 2.7142857142857144) internal successors, (19), 7 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 27 states and 30 transitions. Complement of second has 5 states. [2021-11-13 18:05:08,975 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 3 stem states 0 non-accepting loop states 1 accepting loop states [2021-11-13 18:05:08,976 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7 states, 7 states have (on average 2.7142857142857144) internal successors, (19), 7 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-13 18:05:08,977 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 6 transitions. [2021-11-13 18:05:08,977 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 6 transitions. Stem has 16 letters. Loop has 4 letters. [2021-11-13 18:05:08,977 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-11-13 18:05:08,977 INFO L634 RefineBuchi]: Bad chosen interpolant automaton: word not accepted [2021-11-13 18:05:09,009 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 18:05:09,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:05:09,040 INFO L263 TraceCheckSpWp]: Trace formula consists of 119 conjuncts, 20 conjunts are in the unsatisfiable core [2021-11-13 18:05:09,042 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-13 18:05:09,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:05:09,280 INFO L263 TraceCheckSpWp]: Trace formula consists of 26 conjuncts, 8 conjunts are in the unsatisfiable core [2021-11-13 18:05:09,281 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-13 18:05:09,406 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-13 18:05:09,406 INFO L152 lantAutomatonBouncer]: Defining Buchi interpolant automaton with scrooge nondeterminism in stemwith honda bouncer for stem and without honda bouncer for loop.4 stem predicates 3 loop predicates [2021-11-13 18:05:09,407 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 27 states and 30 transitions. cyclomatic complexity: 6 Second operand has 7 states, 7 states have (on average 2.7142857142857144) internal successors, (19), 7 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-13 18:05:09,588 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 27 states and 30 transitions. cyclomatic complexity: 6. Second operand has 7 states, 7 states have (on average 2.7142857142857144) internal successors, (19), 7 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 56 states and 63 transitions. Complement of second has 11 states. [2021-11-13 18:05:09,589 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 8 states 4 stem states 2 non-accepting loop states 2 accepting loop states [2021-11-13 18:05:09,593 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7 states, 7 states have (on average 2.7142857142857144) internal successors, (19), 7 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-13 18:05:09,594 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 40 transitions. [2021-11-13 18:05:09,594 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 8 states and 40 transitions. Stem has 16 letters. Loop has 4 letters. [2021-11-13 18:05:09,595 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-11-13 18:05:09,595 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 8 states and 40 transitions. Stem has 20 letters. Loop has 4 letters. [2021-11-13 18:05:09,598 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-11-13 18:05:09,599 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 8 states and 40 transitions. Stem has 16 letters. Loop has 8 letters. [2021-11-13 18:05:09,601 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-11-13 18:05:09,602 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 56 states and 63 transitions. [2021-11-13 18:05:09,611 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2021-11-13 18:05:09,613 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 56 states to 42 states and 46 transitions. [2021-11-13 18:05:09,614 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 11 [2021-11-13 18:05:09,614 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 12 [2021-11-13 18:05:09,615 INFO L73 IsDeterministic]: Start isDeterministic. Operand 42 states and 46 transitions. [2021-11-13 18:05:09,615 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2021-11-13 18:05:09,615 INFO L681 BuchiCegarLoop]: Abstraction has 42 states and 46 transitions. [2021-11-13 18:05:09,615 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 42 states and 46 transitions. [2021-11-13 18:05:09,620 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 42 to 37. [2021-11-13 18:05:09,624 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 37 states, 37 states have (on average 1.1081081081081081) internal successors, (41), 36 states have internal predecessors, (41), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-13 18:05:09,625 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37 states to 37 states and 41 transitions. [2021-11-13 18:05:09,626 INFO L704 BuchiCegarLoop]: Abstraction has 37 states and 41 transitions. [2021-11-13 18:05:09,626 INFO L587 BuchiCegarLoop]: Abstraction has 37 states and 41 transitions. [2021-11-13 18:05:09,626 INFO L425 BuchiCegarLoop]: ======== Iteration 6============ [2021-11-13 18:05:09,627 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 37 states and 41 transitions. [2021-11-13 18:05:09,627 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2021-11-13 18:05:09,627 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-11-13 18:05:09,628 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-11-13 18:05:09,629 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [4, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1] [2021-11-13 18:05:09,629 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2021-11-13 18:05:09,630 INFO L791 eck$LassoCheckResult]: Stem: 1102#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier; 1103#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet9#1, main_#t~malloc10#1.base, main_#t~malloc10#1.offset, main_#t~nondet11#1, main_#t~malloc12#1.base, main_#t~malloc12#1.offset, main_#t~ret13#1, main_~in_len~0#1, main_~in~0#1.base, main_~in~0#1.offset, main_~out_len~0#1, main_~out~0#1.base, main_~out~0#1.offset;main_~in_len~0#1 := main_#t~nondet9#1;havoc main_#t~nondet9#1; 1115#L519 assume !(main_~in_len~0#1 < 1);call main_#t~malloc10#1.base, main_#t~malloc10#1.offset := #Ultimate.allocOnStack(main_~in_len~0#1);main_~in~0#1.base, main_~in~0#1.offset := main_#t~malloc10#1.base, main_#t~malloc10#1.offset;call write~int(0, main_~in~0#1.base, main_~in~0#1.offset + (main_~in_len~0#1 - 1), 1);main_~out_len~0#1 := main_#t~nondet11#1;havoc main_#t~nondet11#1; 1106#L523 assume !(main_~out_len~0#1 < 1);call main_#t~malloc12#1.base, main_#t~malloc12#1.offset := #Ultimate.allocOnStack(main_~out_len~0#1);main_~out~0#1.base, main_~out~0#1.offset := main_#t~malloc12#1.base, main_#t~malloc12#1.offset;call write~int(0, main_~out~0#1.base, main_~out~0#1.offset + (main_~out_len~0#1 - 1), 1);assume { :begin_inline_strcspn } true;strcspn_#in~s#1.base, strcspn_#in~s#1.offset, strcspn_#in~reject#1.base, strcspn_#in~reject#1.offset := main_~in~0#1.base, main_~in~0#1.offset, main_~out~0#1.base, main_~out~0#1.offset;havoc strcspn_#res#1;havoc strcspn_#t~mem4#1, strcspn_#t~mem5#1, strcspn_#t~pre3#1, strcspn_#t~mem6#1, strcspn_#t~pre7#1, strcspn_#t~pre2#1.base, strcspn_#t~pre2#1.offset, strcspn_#t~mem8#1, strcspn_~s#1.base, strcspn_~s#1.offset, strcspn_~reject#1.base, strcspn_~reject#1.offset, strcspn_~l~0#1, strcspn_~i~0#1;strcspn_~s#1.base, strcspn_~s#1.offset := strcspn_#in~s#1.base, strcspn_#in~s#1.offset;strcspn_~reject#1.base, strcspn_~reject#1.offset := strcspn_#in~reject#1.base, strcspn_#in~reject#1.offset;strcspn_~l~0#1 := 0;havoc strcspn_~i~0#1; 1107#L510-4 call strcspn_#t~mem8#1 := read~int(strcspn_~s#1.base, strcspn_~s#1.offset, 1); 1116#L510-1 assume !!(0 != strcspn_#t~mem8#1);havoc strcspn_#t~mem8#1;strcspn_~i~0#1 := 0; 1130#L511-4 call strcspn_#t~mem6#1 := read~int(strcspn_~reject#1.base, strcspn_~reject#1.offset + strcspn_~i~0#1, 1); 1127#L511-1 assume !!(0 != strcspn_#t~mem6#1);havoc strcspn_#t~mem6#1;call strcspn_#t~mem4#1 := read~int(strcspn_~s#1.base, strcspn_~s#1.offset, 1);call strcspn_#t~mem5#1 := read~int(strcspn_~reject#1.base, strcspn_~reject#1.offset + strcspn_~i~0#1, 1); 1129#L512 assume !(strcspn_#t~mem4#1 == strcspn_#t~mem5#1);havoc strcspn_#t~mem4#1;havoc strcspn_#t~mem5#1; 1128#L511-3 strcspn_#t~pre3#1 := 1 + strcspn_~i~0#1;strcspn_~i~0#1 := 1 + strcspn_~i~0#1;havoc strcspn_#t~pre3#1; 1126#L511-4 call strcspn_#t~mem6#1 := read~int(strcspn_~reject#1.base, strcspn_~reject#1.offset + strcspn_~i~0#1, 1); 1125#L511-1 assume !(0 != strcspn_#t~mem6#1);havoc strcspn_#t~mem6#1; 1124#L511-5 strcspn_#t~pre7#1 := 1 + strcspn_~l~0#1;strcspn_~l~0#1 := 1 + strcspn_~l~0#1;havoc strcspn_#t~pre7#1; 1123#L510-3 strcspn_#t~pre2#1.base, strcspn_#t~pre2#1.offset := strcspn_~s#1.base, 1 + strcspn_~s#1.offset;strcspn_~s#1.base, strcspn_~s#1.offset := strcspn_~s#1.base, 1 + strcspn_~s#1.offset;havoc strcspn_#t~pre2#1.base, strcspn_#t~pre2#1.offset; 1117#L510-4 call strcspn_#t~mem8#1 := read~int(strcspn_~s#1.base, strcspn_~s#1.offset, 1); 1118#L510-1 assume !!(0 != strcspn_#t~mem8#1);havoc strcspn_#t~mem8#1;strcspn_~i~0#1 := 0; 1100#L511-4 call strcspn_#t~mem6#1 := read~int(strcspn_~reject#1.base, strcspn_~reject#1.offset + strcspn_~i~0#1, 1); 1101#L511-1 assume !!(0 != strcspn_#t~mem6#1);havoc strcspn_#t~mem6#1;call strcspn_#t~mem4#1 := read~int(strcspn_~s#1.base, strcspn_~s#1.offset, 1);call strcspn_#t~mem5#1 := read~int(strcspn_~reject#1.base, strcspn_~reject#1.offset + strcspn_~i~0#1, 1); 1113#L512 assume !(strcspn_#t~mem4#1 == strcspn_#t~mem5#1);havoc strcspn_#t~mem4#1;havoc strcspn_#t~mem5#1; 1114#L511-3 strcspn_#t~pre3#1 := 1 + strcspn_~i~0#1;strcspn_~i~0#1 := 1 + strcspn_~i~0#1;havoc strcspn_#t~pre3#1; 1131#L511-4 call strcspn_#t~mem6#1 := read~int(strcspn_~reject#1.base, strcspn_~reject#1.offset + strcspn_~i~0#1, 1); 1120#L511-1 assume !(0 != strcspn_#t~mem6#1);havoc strcspn_#t~mem6#1; 1119#L511-5 strcspn_#t~pre7#1 := 1 + strcspn_~l~0#1;strcspn_~l~0#1 := 1 + strcspn_~l~0#1;havoc strcspn_#t~pre7#1; 1104#L510-3 strcspn_#t~pre2#1.base, strcspn_#t~pre2#1.offset := strcspn_~s#1.base, 1 + strcspn_~s#1.offset;strcspn_~s#1.base, strcspn_~s#1.offset := strcspn_~s#1.base, 1 + strcspn_~s#1.offset;havoc strcspn_#t~pre2#1.base, strcspn_#t~pre2#1.offset; 1105#L510-4 call strcspn_#t~mem8#1 := read~int(strcspn_~s#1.base, strcspn_~s#1.offset, 1); 1108#L510-1 assume !!(0 != strcspn_#t~mem8#1);havoc strcspn_#t~mem8#1;strcspn_~i~0#1 := 0; 1098#L511-4 [2021-11-13 18:05:09,630 INFO L793 eck$LassoCheckResult]: Loop: 1098#L511-4 call strcspn_#t~mem6#1 := read~int(strcspn_~reject#1.base, strcspn_~reject#1.offset + strcspn_~i~0#1, 1); 1099#L511-1 assume !!(0 != strcspn_#t~mem6#1);havoc strcspn_#t~mem6#1;call strcspn_#t~mem4#1 := read~int(strcspn_~s#1.base, strcspn_~s#1.offset, 1);call strcspn_#t~mem5#1 := read~int(strcspn_~reject#1.base, strcspn_~reject#1.offset + strcspn_~i~0#1, 1); 1111#L512 assume !(strcspn_#t~mem4#1 == strcspn_#t~mem5#1);havoc strcspn_#t~mem4#1;havoc strcspn_#t~mem5#1; 1112#L511-3 strcspn_#t~pre3#1 := 1 + strcspn_~i~0#1;strcspn_~i~0#1 := 1 + strcspn_~i~0#1;havoc strcspn_#t~pre3#1; 1098#L511-4 [2021-11-13 18:05:09,630 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 18:05:09,631 INFO L85 PathProgramCache]: Analyzing trace with hash 1550213327, now seen corresponding path program 4 times [2021-11-13 18:05:09,631 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-13 18:05:09,631 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1629068657] [2021-11-13 18:05:09,631 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 18:05:09,632 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-13 18:05:09,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-13 18:05:09,653 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-13 18:05:09,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-13 18:05:09,690 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-11-13 18:05:09,691 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 18:05:09,691 INFO L85 PathProgramCache]: Analyzing trace with hash 1698248, now seen corresponding path program 4 times [2021-11-13 18:05:09,691 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-13 18:05:09,692 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1595296223] [2021-11-13 18:05:09,692 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 18:05:09,692 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-13 18:05:09,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-13 18:05:09,697 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-13 18:05:09,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-13 18:05:09,704 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-11-13 18:05:09,705 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 18:05:09,705 INFO L85 PathProgramCache]: Analyzing trace with hash 229061526, now seen corresponding path program 5 times [2021-11-13 18:05:09,706 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-13 18:05:09,706 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2066363216] [2021-11-13 18:05:09,706 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 18:05:09,706 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-13 18:05:09,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-13 18:05:09,733 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-13 18:05:09,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-13 18:05:09,782 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-11-13 18:05:11,524 INFO L210 LassoAnalysis]: Preferences: [2021-11-13 18:05:11,524 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-11-13 18:05:11,524 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-11-13 18:05:11,524 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-11-13 18:05:11,524 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2021-11-13 18:05:11,525 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-13 18:05:11,525 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-11-13 18:05:11,525 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-11-13 18:05:11,525 INFO L133 ssoRankerPreferences]: Filename of dumped script: strcspn.i_Iteration6_Lasso [2021-11-13 18:05:11,525 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-11-13 18:05:11,525 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-11-13 18:05:11,530 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-13 18:05:11,533 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-13 18:05:11,536 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-13 18:05:11,538 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-13 18:05:11,540 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-13 18:05:11,542 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-13 18:05:11,544 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-13 18:05:11,547 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-13 18:05:12,366 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-13 18:05:12,368 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-13 18:05:12,371 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-13 18:05:12,384 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-13 18:05:12,386 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-13 18:05:12,388 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-13 18:05:12,390 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-13 18:05:12,392 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-13 18:05:12,394 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-13 18:05:12,396 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-13 18:05:12,824 WARN L137 XnfTransformerHelper]: expecting exponential blowup for input size 6 [2021-11-13 18:05:14,348 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-11-13 18:05:14,348 INFO L490 LassoAnalysis]: Using template 'affine'. [2021-11-13 18:05:14,349 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-13 18:05:14,349 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_252716b3-0bc5-4342-9502-c4579df3009a/bin/uautomizer-YU5uOKAj3y/z3 [2021-11-13 18:05:14,361 INFO L229 MonitoredProcess]: Starting monitored process 42 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_252716b3-0bc5-4342-9502-c4579df3009a/bin/uautomizer-YU5uOKAj3y/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-13 18:05:14,362 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_252716b3-0bc5-4342-9502-c4579df3009a/bin/uautomizer-YU5uOKAj3y/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (42)] Waiting until timeout for monitored process [2021-11-13 18:05:14,363 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-11-13 18:05:14,373 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-13 18:05:14,373 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-11-13 18:05:14,373 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-13 18:05:14,373 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-13 18:05:14,373 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-13 18:05:14,374 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-11-13 18:05:14,375 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-11-13 18:05:14,401 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-11-13 18:05:14,428 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_252716b3-0bc5-4342-9502-c4579df3009a/bin/uautomizer-YU5uOKAj3y/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (42)] Ended with exit code 0 [2021-11-13 18:05:14,428 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-13 18:05:14,429 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_252716b3-0bc5-4342-9502-c4579df3009a/bin/uautomizer-YU5uOKAj3y/z3 [2021-11-13 18:05:14,429 INFO L229 MonitoredProcess]: Starting monitored process 43 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_252716b3-0bc5-4342-9502-c4579df3009a/bin/uautomizer-YU5uOKAj3y/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-13 18:05:14,431 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_252716b3-0bc5-4342-9502-c4579df3009a/bin/uautomizer-YU5uOKAj3y/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (43)] Waiting until timeout for monitored process [2021-11-13 18:05:14,432 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-11-13 18:05:14,441 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-13 18:05:14,441 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-13 18:05:14,442 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-13 18:05:14,442 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-13 18:05:14,443 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-11-13 18:05:14,444 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-11-13 18:05:14,447 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-11-13 18:05:14,473 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_252716b3-0bc5-4342-9502-c4579df3009a/bin/uautomizer-YU5uOKAj3y/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (43)] Forceful destruction successful, exit code 0 [2021-11-13 18:05:14,474 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-13 18:05:14,474 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_252716b3-0bc5-4342-9502-c4579df3009a/bin/uautomizer-YU5uOKAj3y/z3 [2021-11-13 18:05:14,475 INFO L229 MonitoredProcess]: Starting monitored process 44 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_252716b3-0bc5-4342-9502-c4579df3009a/bin/uautomizer-YU5uOKAj3y/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-13 18:05:14,476 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_252716b3-0bc5-4342-9502-c4579df3009a/bin/uautomizer-YU5uOKAj3y/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (44)] Waiting until timeout for monitored process [2021-11-13 18:05:14,477 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-11-13 18:05:14,486 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-13 18:05:14,486 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-11-13 18:05:14,486 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-13 18:05:14,486 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-13 18:05:14,486 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-13 18:05:14,487 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-11-13 18:05:14,487 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-11-13 18:05:14,488 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-11-13 18:05:14,514 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_252716b3-0bc5-4342-9502-c4579df3009a/bin/uautomizer-YU5uOKAj3y/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (44)] Forceful destruction successful, exit code 0 [2021-11-13 18:05:14,515 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-13 18:05:14,515 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_252716b3-0bc5-4342-9502-c4579df3009a/bin/uautomizer-YU5uOKAj3y/z3 [2021-11-13 18:05:14,516 INFO L229 MonitoredProcess]: Starting monitored process 45 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_252716b3-0bc5-4342-9502-c4579df3009a/bin/uautomizer-YU5uOKAj3y/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-13 18:05:14,517 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-11-13 18:05:14,540 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-13 18:05:14,540 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-11-13 18:05:14,540 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_252716b3-0bc5-4342-9502-c4579df3009a/bin/uautomizer-YU5uOKAj3y/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (45)] Waiting until timeout for monitored process [2021-11-13 18:05:14,540 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-13 18:05:14,541 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-13 18:05:14,541 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-13 18:05:14,541 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-11-13 18:05:14,541 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-11-13 18:05:14,543 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-11-13 18:05:14,569 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_252716b3-0bc5-4342-9502-c4579df3009a/bin/uautomizer-YU5uOKAj3y/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (45)] Forceful destruction successful, exit code 0 [2021-11-13 18:05:14,569 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-13 18:05:14,570 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_252716b3-0bc5-4342-9502-c4579df3009a/bin/uautomizer-YU5uOKAj3y/z3 [2021-11-13 18:05:14,570 INFO L229 MonitoredProcess]: Starting monitored process 46 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_252716b3-0bc5-4342-9502-c4579df3009a/bin/uautomizer-YU5uOKAj3y/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-13 18:05:14,571 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_252716b3-0bc5-4342-9502-c4579df3009a/bin/uautomizer-YU5uOKAj3y/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (46)] Waiting until timeout for monitored process [2021-11-13 18:05:14,572 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-11-13 18:05:14,581 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-13 18:05:14,581 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-11-13 18:05:14,581 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-13 18:05:14,582 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-13 18:05:14,582 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-13 18:05:14,582 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-11-13 18:05:14,582 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-11-13 18:05:14,583 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-11-13 18:05:14,609 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_252716b3-0bc5-4342-9502-c4579df3009a/bin/uautomizer-YU5uOKAj3y/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (46)] Ended with exit code 0 [2021-11-13 18:05:14,610 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-13 18:05:14,610 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_252716b3-0bc5-4342-9502-c4579df3009a/bin/uautomizer-YU5uOKAj3y/z3 [2021-11-13 18:05:14,611 INFO L229 MonitoredProcess]: Starting monitored process 47 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_252716b3-0bc5-4342-9502-c4579df3009a/bin/uautomizer-YU5uOKAj3y/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-13 18:05:14,613 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_252716b3-0bc5-4342-9502-c4579df3009a/bin/uautomizer-YU5uOKAj3y/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (47)] Waiting until timeout for monitored process [2021-11-13 18:05:14,613 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-11-13 18:05:14,622 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-13 18:05:14,623 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-11-13 18:05:14,623 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-13 18:05:14,623 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-13 18:05:14,623 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-13 18:05:14,623 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-11-13 18:05:14,624 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-11-13 18:05:14,625 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-11-13 18:05:14,650 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_252716b3-0bc5-4342-9502-c4579df3009a/bin/uautomizer-YU5uOKAj3y/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (47)] Ended with exit code 0 [2021-11-13 18:05:14,650 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-13 18:05:14,650 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_252716b3-0bc5-4342-9502-c4579df3009a/bin/uautomizer-YU5uOKAj3y/z3 [2021-11-13 18:05:14,651 INFO L229 MonitoredProcess]: Starting monitored process 48 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_252716b3-0bc5-4342-9502-c4579df3009a/bin/uautomizer-YU5uOKAj3y/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-13 18:05:14,652 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_252716b3-0bc5-4342-9502-c4579df3009a/bin/uautomizer-YU5uOKAj3y/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (48)] Waiting until timeout for monitored process [2021-11-13 18:05:14,653 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-11-13 18:05:14,662 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-13 18:05:14,662 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-13 18:05:14,663 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-13 18:05:14,663 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-13 18:05:14,665 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-11-13 18:05:14,666 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-11-13 18:05:14,685 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-11-13 18:05:14,711 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_252716b3-0bc5-4342-9502-c4579df3009a/bin/uautomizer-YU5uOKAj3y/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (48)] Ended with exit code 0 [2021-11-13 18:05:14,711 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-13 18:05:14,711 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_252716b3-0bc5-4342-9502-c4579df3009a/bin/uautomizer-YU5uOKAj3y/z3 [2021-11-13 18:05:14,712 INFO L229 MonitoredProcess]: Starting monitored process 49 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_252716b3-0bc5-4342-9502-c4579df3009a/bin/uautomizer-YU5uOKAj3y/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-13 18:05:14,713 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_252716b3-0bc5-4342-9502-c4579df3009a/bin/uautomizer-YU5uOKAj3y/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (49)] Waiting until timeout for monitored process [2021-11-13 18:05:14,713 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-11-13 18:05:14,722 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-13 18:05:14,723 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-13 18:05:14,723 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-13 18:05:14,723 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-13 18:05:14,727 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-11-13 18:05:14,727 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-11-13 18:05:14,737 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-11-13 18:05:14,763 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_252716b3-0bc5-4342-9502-c4579df3009a/bin/uautomizer-YU5uOKAj3y/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (49)] Forceful destruction successful, exit code 0 [2021-11-13 18:05:14,764 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-13 18:05:14,764 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_252716b3-0bc5-4342-9502-c4579df3009a/bin/uautomizer-YU5uOKAj3y/z3 [2021-11-13 18:05:14,765 INFO L229 MonitoredProcess]: Starting monitored process 50 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_252716b3-0bc5-4342-9502-c4579df3009a/bin/uautomizer-YU5uOKAj3y/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-13 18:05:14,767 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-11-13 18:05:14,773 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_252716b3-0bc5-4342-9502-c4579df3009a/bin/uautomizer-YU5uOKAj3y/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (50)] Waiting until timeout for monitored process [2021-11-13 18:05:14,778 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-13 18:05:14,778 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-13 18:05:14,778 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-13 18:05:14,778 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-13 18:05:14,780 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-11-13 18:05:14,780 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-11-13 18:05:14,805 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-11-13 18:05:14,835 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_252716b3-0bc5-4342-9502-c4579df3009a/bin/uautomizer-YU5uOKAj3y/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (50)] Ended with exit code 0 [2021-11-13 18:05:14,835 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-13 18:05:14,836 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_252716b3-0bc5-4342-9502-c4579df3009a/bin/uautomizer-YU5uOKAj3y/z3 [2021-11-13 18:05:14,837 INFO L229 MonitoredProcess]: Starting monitored process 51 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_252716b3-0bc5-4342-9502-c4579df3009a/bin/uautomizer-YU5uOKAj3y/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-13 18:05:14,838 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_252716b3-0bc5-4342-9502-c4579df3009a/bin/uautomizer-YU5uOKAj3y/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (51)] Waiting until timeout for monitored process [2021-11-13 18:05:14,838 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-11-13 18:05:14,848 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-13 18:05:14,848 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-13 18:05:14,848 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-13 18:05:14,848 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-13 18:05:14,850 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-11-13 18:05:14,850 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-11-13 18:05:14,854 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-11-13 18:05:14,880 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_252716b3-0bc5-4342-9502-c4579df3009a/bin/uautomizer-YU5uOKAj3y/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (51)] Forceful destruction successful, exit code 0 [2021-11-13 18:05:14,881 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-13 18:05:14,881 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_252716b3-0bc5-4342-9502-c4579df3009a/bin/uautomizer-YU5uOKAj3y/z3 [2021-11-13 18:05:14,883 INFO L229 MonitoredProcess]: Starting monitored process 52 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_252716b3-0bc5-4342-9502-c4579df3009a/bin/uautomizer-YU5uOKAj3y/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-13 18:05:14,884 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_252716b3-0bc5-4342-9502-c4579df3009a/bin/uautomizer-YU5uOKAj3y/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (52)] Waiting until timeout for monitored process [2021-11-13 18:05:14,885 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-11-13 18:05:14,894 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-13 18:05:14,895 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-13 18:05:14,895 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-13 18:05:14,895 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-13 18:05:14,903 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-11-13 18:05:14,903 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-11-13 18:05:14,929 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-11-13 18:05:14,971 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_252716b3-0bc5-4342-9502-c4579df3009a/bin/uautomizer-YU5uOKAj3y/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (52)] Forceful destruction successful, exit code 0 [2021-11-13 18:05:14,972 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-13 18:05:14,972 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_252716b3-0bc5-4342-9502-c4579df3009a/bin/uautomizer-YU5uOKAj3y/z3 [2021-11-13 18:05:14,973 INFO L229 MonitoredProcess]: Starting monitored process 53 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_252716b3-0bc5-4342-9502-c4579df3009a/bin/uautomizer-YU5uOKAj3y/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-13 18:05:14,982 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-11-13 18:05:14,993 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-13 18:05:14,993 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-13 18:05:14,993 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-13 18:05:14,993 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-13 18:05:14,995 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-11-13 18:05:14,995 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-11-13 18:05:14,999 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_252716b3-0bc5-4342-9502-c4579df3009a/bin/uautomizer-YU5uOKAj3y/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (53)] Waiting until timeout for monitored process [2021-11-13 18:05:15,021 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-11-13 18:05:15,059 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_252716b3-0bc5-4342-9502-c4579df3009a/bin/uautomizer-YU5uOKAj3y/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (53)] Forceful destruction successful, exit code 0 [2021-11-13 18:05:15,059 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-13 18:05:15,059 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_252716b3-0bc5-4342-9502-c4579df3009a/bin/uautomizer-YU5uOKAj3y/z3 [2021-11-13 18:05:15,061 INFO L229 MonitoredProcess]: Starting monitored process 54 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_252716b3-0bc5-4342-9502-c4579df3009a/bin/uautomizer-YU5uOKAj3y/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-13 18:05:15,063 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-11-13 18:05:15,074 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-13 18:05:15,074 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-13 18:05:15,075 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-13 18:05:15,075 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-13 18:05:15,078 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-11-13 18:05:15,078 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-11-13 18:05:15,082 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_252716b3-0bc5-4342-9502-c4579df3009a/bin/uautomizer-YU5uOKAj3y/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (54)] Waiting until timeout for monitored process [2021-11-13 18:05:15,101 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-11-13 18:05:15,144 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_252716b3-0bc5-4342-9502-c4579df3009a/bin/uautomizer-YU5uOKAj3y/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (54)] Forceful destruction successful, exit code 0 [2021-11-13 18:05:15,144 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-13 18:05:15,144 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_252716b3-0bc5-4342-9502-c4579df3009a/bin/uautomizer-YU5uOKAj3y/z3 [2021-11-13 18:05:15,146 INFO L229 MonitoredProcess]: Starting monitored process 55 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_252716b3-0bc5-4342-9502-c4579df3009a/bin/uautomizer-YU5uOKAj3y/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-13 18:05:15,150 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_252716b3-0bc5-4342-9502-c4579df3009a/bin/uautomizer-YU5uOKAj3y/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (55)] Waiting until timeout for monitored process [2021-11-13 18:05:15,153 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-11-13 18:05:15,165 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-13 18:05:15,166 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-13 18:05:15,166 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-13 18:05:15,166 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-13 18:05:15,168 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-11-13 18:05:15,168 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-11-13 18:05:15,189 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-11-13 18:05:15,229 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_252716b3-0bc5-4342-9502-c4579df3009a/bin/uautomizer-YU5uOKAj3y/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (55)] Ended with exit code 0 [2021-11-13 18:05:15,231 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-13 18:05:15,231 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_252716b3-0bc5-4342-9502-c4579df3009a/bin/uautomizer-YU5uOKAj3y/z3 [2021-11-13 18:05:15,232 INFO L229 MonitoredProcess]: Starting monitored process 56 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_252716b3-0bc5-4342-9502-c4579df3009a/bin/uautomizer-YU5uOKAj3y/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-13 18:05:15,233 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_252716b3-0bc5-4342-9502-c4579df3009a/bin/uautomizer-YU5uOKAj3y/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (56)] Waiting until timeout for monitored process [2021-11-13 18:05:15,234 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-11-13 18:05:15,244 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-13 18:05:15,244 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-13 18:05:15,244 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-13 18:05:15,245 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-13 18:05:15,258 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-11-13 18:05:15,258 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-11-13 18:05:15,289 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2021-11-13 18:05:15,400 INFO L443 ModelExtractionUtils]: Simplification made 28 calls to the SMT solver. [2021-11-13 18:05:15,400 INFO L444 ModelExtractionUtils]: 20 out of 55 variables were initially zero. Simplification set additionally 32 variables to zero. [2021-11-13 18:05:15,400 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-13 18:05:15,401 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_252716b3-0bc5-4342-9502-c4579df3009a/bin/uautomizer-YU5uOKAj3y/z3 [2021-11-13 18:05:15,409 INFO L229 MonitoredProcess]: Starting monitored process 57 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_252716b3-0bc5-4342-9502-c4579df3009a/bin/uautomizer-YU5uOKAj3y/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-13 18:05:15,411 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2021-11-13 18:05:15,412 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_252716b3-0bc5-4342-9502-c4579df3009a/bin/uautomizer-YU5uOKAj3y/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (57)] Waiting until timeout for monitored process [2021-11-13 18:05:15,422 INFO L438 nArgumentSynthesizer]: Removed 2 redundant supporting invariants from a total of 2. [2021-11-13 18:05:15,422 INFO L513 LassoAnalysis]: Proved termination. [2021-11-13 18:05:15,422 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(v_rep(select #length ULTIMATE.start_strcspn_~reject#1.base)_4, ULTIMATE.start_strcspn_~i~0#1) = 5*v_rep(select #length ULTIMATE.start_strcspn_~reject#1.base)_4 - 2*ULTIMATE.start_strcspn_~i~0#1 Supporting invariants [] [2021-11-13 18:05:15,449 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_252716b3-0bc5-4342-9502-c4579df3009a/bin/uautomizer-YU5uOKAj3y/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (56)] Ended with exit code 0 [2021-11-13 18:05:15,624 INFO L297 tatePredicateManager]: 41 out of 42 supporting invariants were superfluous and have been removed [2021-11-13 18:05:15,650 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 18:05:15,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:05:15,687 INFO L263 TraceCheckSpWp]: Trace formula consists of 164 conjuncts, 22 conjunts are in the unsatisfiable core [2021-11-13 18:05:15,688 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-13 18:05:16,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:05:16,011 INFO L263 TraceCheckSpWp]: Trace formula consists of 26 conjuncts, 8 conjunts are in the unsatisfiable core [2021-11-13 18:05:16,011 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-13 18:05:16,128 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-13 18:05:16,129 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.5 stem predicates 3 loop predicates [2021-11-13 18:05:16,129 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 37 states and 41 transitions. cyclomatic complexity: 8 Second operand has 8 states, 8 states have (on average 3.5) internal successors, (28), 8 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-13 18:05:16,190 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 37 states and 41 transitions. cyclomatic complexity: 8. Second operand has 8 states, 8 states have (on average 3.5) internal successors, (28), 8 states have internal predecessors, (28), 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 37 states and 41 transitions. Complement of second has 5 states. [2021-11-13 18:05:16,191 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 3 stem states 0 non-accepting loop states 1 accepting loop states [2021-11-13 18:05:16,192 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8 states, 8 states have (on average 3.5) internal successors, (28), 8 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-13 18:05:16,192 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 6 transitions. [2021-11-13 18:05:16,192 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 6 transitions. Stem has 26 letters. Loop has 4 letters. [2021-11-13 18:05:16,193 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-11-13 18:05:16,193 INFO L634 RefineBuchi]: Bad chosen interpolant automaton: word not accepted [2021-11-13 18:05:16,215 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 18:05:16,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:05:16,263 INFO L263 TraceCheckSpWp]: Trace formula consists of 164 conjuncts, 22 conjunts are in the unsatisfiable core [2021-11-13 18:05:16,264 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-13 18:05:16,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:05:16,584 INFO L263 TraceCheckSpWp]: Trace formula consists of 26 conjuncts, 8 conjunts are in the unsatisfiable core [2021-11-13 18:05:16,585 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-13 18:05:16,680 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-13 18:05:16,681 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and with honda bouncer for loop.5 stem predicates 3 loop predicates [2021-11-13 18:05:16,681 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 37 states and 41 transitions. cyclomatic complexity: 8 Second operand has 8 states, 8 states have (on average 3.5) internal successors, (28), 8 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-13 18:05:16,765 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_252716b3-0bc5-4342-9502-c4579df3009a/bin/uautomizer-YU5uOKAj3y/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (57)] Forceful destruction successful, exit code 0 [2021-11-13 18:05:16,779 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 37 states and 41 transitions. cyclomatic complexity: 8. Second operand has 8 states, 8 states have (on average 3.5) internal successors, (28), 8 states have internal predecessors, (28), 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 37 states and 41 transitions. Complement of second has 5 states. [2021-11-13 18:05:16,782 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 3 stem states 0 non-accepting loop states 1 accepting loop states [2021-11-13 18:05:16,783 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8 states, 8 states have (on average 3.5) internal successors, (28), 8 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-13 18:05:16,784 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 6 transitions. [2021-11-13 18:05:16,784 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 6 transitions. Stem has 26 letters. Loop has 4 letters. [2021-11-13 18:05:16,784 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-11-13 18:05:16,784 INFO L634 RefineBuchi]: Bad chosen interpolant automaton: word not accepted [2021-11-13 18:05:16,811 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 18:05:16,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:05:16,850 INFO L263 TraceCheckSpWp]: Trace formula consists of 164 conjuncts, 22 conjunts are in the unsatisfiable core [2021-11-13 18:05:16,852 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-13 18:05:17,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:05:17,232 INFO L263 TraceCheckSpWp]: Trace formula consists of 26 conjuncts, 8 conjunts are in the unsatisfiable core [2021-11-13 18:05:17,232 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-13 18:05:17,365 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-13 18:05:17,365 INFO L152 lantAutomatonBouncer]: Defining Buchi interpolant automaton with scrooge nondeterminism in stemwith honda bouncer for stem and without honda bouncer for loop.5 stem predicates 3 loop predicates [2021-11-13 18:05:17,366 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 37 states and 41 transitions. cyclomatic complexity: 8 Second operand has 8 states, 8 states have (on average 3.5) internal successors, (28), 8 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-13 18:05:17,569 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 37 states and 41 transitions. cyclomatic complexity: 8. Second operand has 8 states, 8 states have (on average 3.5) internal successors, (28), 8 states have internal predecessors, (28), 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 66 states and 74 transitions. Complement of second has 13 states. [2021-11-13 18:05:17,571 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 9 states 5 stem states 2 non-accepting loop states 2 accepting loop states [2021-11-13 18:05:17,572 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8 states, 8 states have (on average 3.5) internal successors, (28), 8 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-13 18:05:17,573 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 50 transitions. [2021-11-13 18:05:17,573 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 9 states and 50 transitions. Stem has 26 letters. Loop has 4 letters. [2021-11-13 18:05:17,576 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-11-13 18:05:17,576 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 9 states and 50 transitions. Stem has 30 letters. Loop has 4 letters. [2021-11-13 18:05:17,577 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-11-13 18:05:17,577 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 9 states and 50 transitions. Stem has 26 letters. Loop has 8 letters. [2021-11-13 18:05:17,580 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-11-13 18:05:17,580 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 66 states and 74 transitions. [2021-11-13 18:05:17,583 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2021-11-13 18:05:17,584 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 66 states to 52 states and 57 transitions. [2021-11-13 18:05:17,584 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 11 [2021-11-13 18:05:17,585 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 12 [2021-11-13 18:05:17,585 INFO L73 IsDeterministic]: Start isDeterministic. Operand 52 states and 57 transitions. [2021-11-13 18:05:17,585 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2021-11-13 18:05:17,585 INFO L681 BuchiCegarLoop]: Abstraction has 52 states and 57 transitions. [2021-11-13 18:05:17,586 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 52 states and 57 transitions. [2021-11-13 18:05:17,590 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 52 to 47. [2021-11-13 18:05:17,591 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 47 states, 47 states have (on average 1.1063829787234043) internal successors, (52), 46 states have internal predecessors, (52), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-13 18:05:17,592 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 47 states to 47 states and 52 transitions. [2021-11-13 18:05:17,592 INFO L704 BuchiCegarLoop]: Abstraction has 47 states and 52 transitions. [2021-11-13 18:05:17,592 INFO L587 BuchiCegarLoop]: Abstraction has 47 states and 52 transitions. [2021-11-13 18:05:17,592 INFO L425 BuchiCegarLoop]: ======== Iteration 7============ [2021-11-13 18:05:17,592 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 47 states and 52 transitions. [2021-11-13 18:05:17,597 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2021-11-13 18:05:17,597 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-11-13 18:05:17,597 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-11-13 18:05:17,601 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [6, 4, 4, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1] [2021-11-13 18:05:17,601 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2021-11-13 18:05:17,602 INFO L791 eck$LassoCheckResult]: Stem: 1794#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier; 1795#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet9#1, main_#t~malloc10#1.base, main_#t~malloc10#1.offset, main_#t~nondet11#1, main_#t~malloc12#1.base, main_#t~malloc12#1.offset, main_#t~ret13#1, main_~in_len~0#1, main_~in~0#1.base, main_~in~0#1.offset, main_~out_len~0#1, main_~out~0#1.base, main_~out~0#1.offset;main_~in_len~0#1 := main_#t~nondet9#1;havoc main_#t~nondet9#1; 1806#L519 assume !(main_~in_len~0#1 < 1);call main_#t~malloc10#1.base, main_#t~malloc10#1.offset := #Ultimate.allocOnStack(main_~in_len~0#1);main_~in~0#1.base, main_~in~0#1.offset := main_#t~malloc10#1.base, main_#t~malloc10#1.offset;call write~int(0, main_~in~0#1.base, main_~in~0#1.offset + (main_~in_len~0#1 - 1), 1);main_~out_len~0#1 := main_#t~nondet11#1;havoc main_#t~nondet11#1; 1802#L523 assume !(main_~out_len~0#1 < 1);call main_#t~malloc12#1.base, main_#t~malloc12#1.offset := #Ultimate.allocOnStack(main_~out_len~0#1);main_~out~0#1.base, main_~out~0#1.offset := main_#t~malloc12#1.base, main_#t~malloc12#1.offset;call write~int(0, main_~out~0#1.base, main_~out~0#1.offset + (main_~out_len~0#1 - 1), 1);assume { :begin_inline_strcspn } true;strcspn_#in~s#1.base, strcspn_#in~s#1.offset, strcspn_#in~reject#1.base, strcspn_#in~reject#1.offset := main_~in~0#1.base, main_~in~0#1.offset, main_~out~0#1.base, main_~out~0#1.offset;havoc strcspn_#res#1;havoc strcspn_#t~mem4#1, strcspn_#t~mem5#1, strcspn_#t~pre3#1, strcspn_#t~mem6#1, strcspn_#t~pre7#1, strcspn_#t~pre2#1.base, strcspn_#t~pre2#1.offset, strcspn_#t~mem8#1, strcspn_~s#1.base, strcspn_~s#1.offset, strcspn_~reject#1.base, strcspn_~reject#1.offset, strcspn_~l~0#1, strcspn_~i~0#1;strcspn_~s#1.base, strcspn_~s#1.offset := strcspn_#in~s#1.base, strcspn_#in~s#1.offset;strcspn_~reject#1.base, strcspn_~reject#1.offset := strcspn_#in~reject#1.base, strcspn_#in~reject#1.offset;strcspn_~l~0#1 := 0;havoc strcspn_~i~0#1; 1803#L510-4 call strcspn_#t~mem8#1 := read~int(strcspn_~s#1.base, strcspn_~s#1.offset, 1); 1812#L510-1 assume !!(0 != strcspn_#t~mem8#1);havoc strcspn_#t~mem8#1;strcspn_~i~0#1 := 0; 1840#L511-4 call strcspn_#t~mem6#1 := read~int(strcspn_~reject#1.base, strcspn_~reject#1.offset + strcspn_~i~0#1, 1); 1837#L511-1 assume !!(0 != strcspn_#t~mem6#1);havoc strcspn_#t~mem6#1;call strcspn_#t~mem4#1 := read~int(strcspn_~s#1.base, strcspn_~s#1.offset, 1);call strcspn_#t~mem5#1 := read~int(strcspn_~reject#1.base, strcspn_~reject#1.offset + strcspn_~i~0#1, 1); 1839#L512 assume !(strcspn_#t~mem4#1 == strcspn_#t~mem5#1);havoc strcspn_#t~mem4#1;havoc strcspn_#t~mem5#1; 1838#L511-3 strcspn_#t~pre3#1 := 1 + strcspn_~i~0#1;strcspn_~i~0#1 := 1 + strcspn_~i~0#1;havoc strcspn_#t~pre3#1; 1836#L511-4 call strcspn_#t~mem6#1 := read~int(strcspn_~reject#1.base, strcspn_~reject#1.offset + strcspn_~i~0#1, 1); 1835#L511-1 assume !(0 != strcspn_#t~mem6#1);havoc strcspn_#t~mem6#1; 1834#L511-5 strcspn_#t~pre7#1 := 1 + strcspn_~l~0#1;strcspn_~l~0#1 := 1 + strcspn_~l~0#1;havoc strcspn_#t~pre7#1; 1833#L510-3 strcspn_#t~pre2#1.base, strcspn_#t~pre2#1.offset := strcspn_~s#1.base, 1 + strcspn_~s#1.offset;strcspn_~s#1.base, strcspn_~s#1.offset := strcspn_~s#1.base, 1 + strcspn_~s#1.offset;havoc strcspn_#t~pre2#1.base, strcspn_#t~pre2#1.offset; 1813#L510-4 call strcspn_#t~mem8#1 := read~int(strcspn_~s#1.base, strcspn_~s#1.offset, 1); 1805#L510-1 assume !!(0 != strcspn_#t~mem8#1);havoc strcspn_#t~mem8#1;strcspn_~i~0#1 := 0; 1798#L511-4 call strcspn_#t~mem6#1 := read~int(strcspn_~reject#1.base, strcspn_~reject#1.offset + strcspn_~i~0#1, 1); 1799#L511-1 assume !!(0 != strcspn_#t~mem6#1);havoc strcspn_#t~mem6#1;call strcspn_#t~mem4#1 := read~int(strcspn_~s#1.base, strcspn_~s#1.offset, 1);call strcspn_#t~mem5#1 := read~int(strcspn_~reject#1.base, strcspn_~reject#1.offset + strcspn_~i~0#1, 1); 1809#L512 assume !(strcspn_#t~mem4#1 == strcspn_#t~mem5#1);havoc strcspn_#t~mem4#1;havoc strcspn_#t~mem5#1; 1810#L511-3 strcspn_#t~pre3#1 := 1 + strcspn_~i~0#1;strcspn_~i~0#1 := 1 + strcspn_~i~0#1;havoc strcspn_#t~pre3#1; 1814#L511-4 call strcspn_#t~mem6#1 := read~int(strcspn_~reject#1.base, strcspn_~reject#1.offset + strcspn_~i~0#1, 1); 1822#L511-1 assume !(0 != strcspn_#t~mem6#1);havoc strcspn_#t~mem6#1; 1811#L511-5 strcspn_#t~pre7#1 := 1 + strcspn_~l~0#1;strcspn_~l~0#1 := 1 + strcspn_~l~0#1;havoc strcspn_#t~pre7#1; 1800#L510-3 strcspn_#t~pre2#1.base, strcspn_#t~pre2#1.offset := strcspn_~s#1.base, 1 + strcspn_~s#1.offset;strcspn_~s#1.base, strcspn_~s#1.offset := strcspn_~s#1.base, 1 + strcspn_~s#1.offset;havoc strcspn_#t~pre2#1.base, strcspn_#t~pre2#1.offset; 1801#L510-4 call strcspn_#t~mem8#1 := read~int(strcspn_~s#1.base, strcspn_~s#1.offset, 1); 1832#L510-1 assume !!(0 != strcspn_#t~mem8#1);havoc strcspn_#t~mem8#1;strcspn_~i~0#1 := 0; 1831#L511-4 call strcspn_#t~mem6#1 := read~int(strcspn_~reject#1.base, strcspn_~reject#1.offset + strcspn_~i~0#1, 1); 1827#L511-1 assume !!(0 != strcspn_#t~mem6#1);havoc strcspn_#t~mem6#1;call strcspn_#t~mem4#1 := read~int(strcspn_~s#1.base, strcspn_~s#1.offset, 1);call strcspn_#t~mem5#1 := read~int(strcspn_~reject#1.base, strcspn_~reject#1.offset + strcspn_~i~0#1, 1); 1828#L512 assume !(strcspn_#t~mem4#1 == strcspn_#t~mem5#1);havoc strcspn_#t~mem4#1;havoc strcspn_#t~mem5#1; 1823#L511-3 strcspn_#t~pre3#1 := 1 + strcspn_~i~0#1;strcspn_~i~0#1 := 1 + strcspn_~i~0#1;havoc strcspn_#t~pre3#1; 1824#L511-4 call strcspn_#t~mem6#1 := read~int(strcspn_~reject#1.base, strcspn_~reject#1.offset + strcspn_~i~0#1, 1); 1819#L511-1 assume !(0 != strcspn_#t~mem6#1);havoc strcspn_#t~mem6#1; 1818#L511-5 strcspn_#t~pre7#1 := 1 + strcspn_~l~0#1;strcspn_~l~0#1 := 1 + strcspn_~l~0#1;havoc strcspn_#t~pre7#1; 1817#L510-3 strcspn_#t~pre2#1.base, strcspn_#t~pre2#1.offset := strcspn_~s#1.base, 1 + strcspn_~s#1.offset;strcspn_~s#1.base, strcspn_~s#1.offset := strcspn_~s#1.base, 1 + strcspn_~s#1.offset;havoc strcspn_#t~pre2#1.base, strcspn_#t~pre2#1.offset; 1815#L510-4 call strcspn_#t~mem8#1 := read~int(strcspn_~s#1.base, strcspn_~s#1.offset, 1); 1804#L510-1 assume !!(0 != strcspn_#t~mem8#1);havoc strcspn_#t~mem8#1;strcspn_~i~0#1 := 0; 1796#L511-4 [2021-11-13 18:05:17,602 INFO L793 eck$LassoCheckResult]: Loop: 1796#L511-4 call strcspn_#t~mem6#1 := read~int(strcspn_~reject#1.base, strcspn_~reject#1.offset + strcspn_~i~0#1, 1); 1797#L511-1 assume !!(0 != strcspn_#t~mem6#1);havoc strcspn_#t~mem6#1;call strcspn_#t~mem4#1 := read~int(strcspn_~s#1.base, strcspn_~s#1.offset, 1);call strcspn_#t~mem5#1 := read~int(strcspn_~reject#1.base, strcspn_~reject#1.offset + strcspn_~i~0#1, 1); 1807#L512 assume !(strcspn_#t~mem4#1 == strcspn_#t~mem5#1);havoc strcspn_#t~mem4#1;havoc strcspn_#t~mem5#1; 1808#L511-3 strcspn_#t~pre3#1 := 1 + strcspn_~i~0#1;strcspn_~i~0#1 := 1 + strcspn_~i~0#1;havoc strcspn_#t~pre3#1; 1796#L511-4 [2021-11-13 18:05:17,603 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 18:05:17,603 INFO L85 PathProgramCache]: Analyzing trace with hash -43865248, now seen corresponding path program 6 times [2021-11-13 18:05:17,603 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-13 18:05:17,603 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [232027541] [2021-11-13 18:05:17,603 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 18:05:17,604 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-13 18:05:17,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-13 18:05:17,624 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-13 18:05:17,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-13 18:05:17,648 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-11-13 18:05:17,649 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 18:05:17,649 INFO L85 PathProgramCache]: Analyzing trace with hash 1698248, now seen corresponding path program 5 times [2021-11-13 18:05:17,649 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-13 18:05:17,650 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [907433642] [2021-11-13 18:05:17,650 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 18:05:17,650 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-13 18:05:17,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-13 18:05:17,654 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-13 18:05:17,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-13 18:05:17,658 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-11-13 18:05:17,658 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 18:05:17,659 INFO L85 PathProgramCache]: Analyzing trace with hash -345387609, now seen corresponding path program 7 times [2021-11-13 18:05:17,659 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-13 18:05:17,659 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2015522004] [2021-11-13 18:05:17,659 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 18:05:17,659 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-13 18:05:17,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-13 18:05:17,683 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-13 18:05:17,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-13 18:05:17,718 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-11-13 18:05:19,779 INFO L210 LassoAnalysis]: Preferences: [2021-11-13 18:05:19,779 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-11-13 18:05:19,780 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-11-13 18:05:19,780 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-11-13 18:05:19,780 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2021-11-13 18:05:19,780 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-13 18:05:19,780 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-11-13 18:05:19,780 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-11-13 18:05:19,780 INFO L133 ssoRankerPreferences]: Filename of dumped script: strcspn.i_Iteration7_Lasso [2021-11-13 18:05:19,780 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-11-13 18:05:19,780 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-11-13 18:05:19,784 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-13 18:05:20,655 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-13 18:05:20,657 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-13 18:05:20,660 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-13 18:05:20,662 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-13 18:05:20,664 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-13 18:05:20,666 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-13 18:05:20,668 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-13 18:05:20,670 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-13 18:05:20,672 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-13 18:05:20,674 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-13 18:05:20,676 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-13 18:05:20,678 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-13 18:05:20,680 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-13 18:05:20,682 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-13 18:05:20,686 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-13 18:05:20,688 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-13 18:05:20,690 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-13 18:05:20,955 WARN L137 XnfTransformerHelper]: expecting exponential blowup for input size 8 [2021-11-13 18:05:28,317 WARN L227 SmtUtils]: Spent 7.15s on a formula simplification. DAG size of input: 298 DAG size of output: 150 (called from [L 68] de.uni_freiburg.informatik.ultimate.icfgtransformer.transformulatransformers.SimplifyPreprocessor.process) [2021-11-13 18:05:28,398 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-11-13 18:05:28,401 INFO L490 LassoAnalysis]: Using template 'affine'. [2021-11-13 18:05:28,401 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-13 18:05:28,401 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_252716b3-0bc5-4342-9502-c4579df3009a/bin/uautomizer-YU5uOKAj3y/z3 [2021-11-13 18:05:28,413 INFO L229 MonitoredProcess]: Starting monitored process 58 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_252716b3-0bc5-4342-9502-c4579df3009a/bin/uautomizer-YU5uOKAj3y/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-13 18:05:28,414 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-11-13 18:05:28,414 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_252716b3-0bc5-4342-9502-c4579df3009a/bin/uautomizer-YU5uOKAj3y/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (58)] Waiting until timeout for monitored process [2021-11-13 18:05:28,423 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-13 18:05:28,423 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-13 18:05:28,423 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-13 18:05:28,423 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-13 18:05:28,425 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-11-13 18:05:28,425 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-11-13 18:05:28,429 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-11-13 18:05:28,449 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_252716b3-0bc5-4342-9502-c4579df3009a/bin/uautomizer-YU5uOKAj3y/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (58)] Ended with exit code 0 [2021-11-13 18:05:28,449 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-13 18:05:28,449 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_252716b3-0bc5-4342-9502-c4579df3009a/bin/uautomizer-YU5uOKAj3y/z3 [2021-11-13 18:05:28,450 INFO L229 MonitoredProcess]: Starting monitored process 59 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_252716b3-0bc5-4342-9502-c4579df3009a/bin/uautomizer-YU5uOKAj3y/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-13 18:05:28,450 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_252716b3-0bc5-4342-9502-c4579df3009a/bin/uautomizer-YU5uOKAj3y/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (59)] Waiting until timeout for monitored process [2021-11-13 18:05:28,451 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-11-13 18:05:28,459 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-13 18:05:28,459 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-13 18:05:28,459 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-13 18:05:28,459 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-13 18:05:28,467 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-11-13 18:05:28,467 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-11-13 18:05:28,484 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2021-11-13 18:05:28,496 INFO L443 ModelExtractionUtils]: Simplification made 4 calls to the SMT solver. [2021-11-13 18:05:28,496 INFO L444 ModelExtractionUtils]: 47 out of 52 variables were initially zero. Simplification set additionally 1 variables to zero. [2021-11-13 18:05:28,496 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-13 18:05:28,496 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_252716b3-0bc5-4342-9502-c4579df3009a/bin/uautomizer-YU5uOKAj3y/z3 [2021-11-13 18:05:28,497 INFO L229 MonitoredProcess]: Starting monitored process 60 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_252716b3-0bc5-4342-9502-c4579df3009a/bin/uautomizer-YU5uOKAj3y/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-13 18:05:28,498 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_252716b3-0bc5-4342-9502-c4579df3009a/bin/uautomizer-YU5uOKAj3y/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (60)] Waiting until timeout for monitored process [2021-11-13 18:05:28,498 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2021-11-13 18:05:28,505 INFO L438 nArgumentSynthesizer]: Removed 2 redundant supporting invariants from a total of 2. [2021-11-13 18:05:28,506 INFO L513 LassoAnalysis]: Proved termination. [2021-11-13 18:05:28,506 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_strcspn_~reject#1.offset, ULTIMATE.start_strcspn_~i~0#1, v_rep(select #length ULTIMATE.start_strcspn_~reject#1.base)_5) = -1*ULTIMATE.start_strcspn_~reject#1.offset - 1*ULTIMATE.start_strcspn_~i~0#1 + 1*v_rep(select #length ULTIMATE.start_strcspn_~reject#1.base)_5 Supporting invariants [] [2021-11-13 18:05:28,525 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_252716b3-0bc5-4342-9502-c4579df3009a/bin/uautomizer-YU5uOKAj3y/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (59)] Forceful destruction successful, exit code 0 [2021-11-13 18:05:28,686 INFO L297 tatePredicateManager]: 46 out of 46 supporting invariants were superfluous and have been removed [2021-11-13 18:05:28,695 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 18:05:28,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:05:28,726 INFO L263 TraceCheckSpWp]: Trace formula consists of 209 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-13 18:05:28,727 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-13 18:05:28,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:05:28,832 INFO L263 TraceCheckSpWp]: Trace formula consists of 24 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-13 18:05:28,833 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-13 18:05:28,860 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-13 18:05:28,861 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates [2021-11-13 18:05:28,861 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 47 states and 52 transitions. cyclomatic complexity: 10 Second operand has 3 states, 3 states have (on average 6.0) internal successors, (18), 3 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-13 18:05:28,887 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 47 states and 52 transitions. cyclomatic complexity: 10. Second operand has 3 states, 3 states have (on average 6.0) internal successors, (18), 3 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 55 states and 61 transitions. Complement of second has 5 states. [2021-11-13 18:05:28,888 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 3 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2021-11-13 18:05:28,888 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 6.0) internal successors, (18), 3 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-13 18:05:28,889 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 14 transitions. [2021-11-13 18:05:28,889 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 14 transitions. Stem has 36 letters. Loop has 4 letters. [2021-11-13 18:05:28,889 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-11-13 18:05:28,889 INFO L634 RefineBuchi]: Bad chosen interpolant automaton: word not accepted [2021-11-13 18:05:28,899 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 18:05:28,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:05:28,934 INFO L263 TraceCheckSpWp]: Trace formula consists of 209 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-13 18:05:28,947 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-13 18:05:29,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:05:29,028 INFO L263 TraceCheckSpWp]: Trace formula consists of 24 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-13 18:05:29,028 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-13 18:05:29,063 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-13 18:05:29,064 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and with honda bouncer for loop.1 stem predicates 2 loop predicates [2021-11-13 18:05:29,064 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 47 states and 52 transitions. cyclomatic complexity: 10 Second operand has 3 states, 3 states have (on average 6.0) internal successors, (18), 3 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-13 18:05:29,093 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_252716b3-0bc5-4342-9502-c4579df3009a/bin/uautomizer-YU5uOKAj3y/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (60)] Forceful destruction successful, exit code 0 [2021-11-13 18:05:29,099 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 47 states and 52 transitions. cyclomatic complexity: 10. Second operand has 3 states, 3 states have (on average 6.0) internal successors, (18), 3 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 55 states and 61 transitions. Complement of second has 5 states. [2021-11-13 18:05:29,101 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 3 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2021-11-13 18:05:29,102 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 6.0) internal successors, (18), 3 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-13 18:05:29,102 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 14 transitions. [2021-11-13 18:05:29,102 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 14 transitions. Stem has 36 letters. Loop has 4 letters. [2021-11-13 18:05:29,102 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-11-13 18:05:29,103 INFO L634 RefineBuchi]: Bad chosen interpolant automaton: word not accepted [2021-11-13 18:05:29,112 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 18:05:29,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:05:29,142 INFO L263 TraceCheckSpWp]: Trace formula consists of 209 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-13 18:05:29,143 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-13 18:05:29,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:05:29,211 INFO L263 TraceCheckSpWp]: Trace formula consists of 24 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-13 18:05:29,211 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-13 18:05:29,233 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-13 18:05:29,233 INFO L152 lantAutomatonBouncer]: Defining Buchi interpolant automaton with scrooge nondeterminism in stemwith honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates [2021-11-13 18:05:29,233 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 47 states and 52 transitions. cyclomatic complexity: 10 Second operand has 3 states, 3 states have (on average 6.0) internal successors, (18), 3 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-13 18:05:29,249 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 47 states and 52 transitions. cyclomatic complexity: 10. Second operand has 3 states, 3 states have (on average 6.0) internal successors, (18), 3 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 80 states and 91 transitions. Complement of second has 4 states. [2021-11-13 18:05:29,250 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 3 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2021-11-13 18:05:29,251 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 6.0) internal successors, (18), 3 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-13 18:05:29,251 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 22 transitions. [2021-11-13 18:05:29,251 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 22 transitions. Stem has 36 letters. Loop has 4 letters. [2021-11-13 18:05:29,252 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-11-13 18:05:29,252 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 22 transitions. Stem has 40 letters. Loop has 4 letters. [2021-11-13 18:05:29,252 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-11-13 18:05:29,252 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 22 transitions. Stem has 36 letters. Loop has 8 letters. [2021-11-13 18:05:29,253 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-11-13 18:05:29,253 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 80 states and 91 transitions. [2021-11-13 18:05:29,255 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2021-11-13 18:05:29,256 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 80 states to 0 states and 0 transitions. [2021-11-13 18:05:29,256 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2021-11-13 18:05:29,256 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2021-11-13 18:05:29,256 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2021-11-13 18:05:29,256 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-11-13 18:05:29,256 INFO L681 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-11-13 18:05:29,256 INFO L704 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-11-13 18:05:29,257 INFO L587 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-11-13 18:05:29,257 INFO L425 BuchiCegarLoop]: ======== Iteration 8============ [2021-11-13 18:05:29,257 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2021-11-13 18:05:29,257 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2021-11-13 18:05:29,257 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2021-11-13 18:05:29,262 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 13.11 06:05:29 BoogieIcfgContainer [2021-11-13 18:05:29,262 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2021-11-13 18:05:29,262 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-11-13 18:05:29,262 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-11-13 18:05:29,263 INFO L275 PluginConnector]: Witness Printer initialized [2021-11-13 18:05:29,263 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 06:04:53" (3/4) ... [2021-11-13 18:05:29,266 INFO L140 WitnessPrinter]: No result that supports witness generation found [2021-11-13 18:05:29,266 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-11-13 18:05:29,267 INFO L158 Benchmark]: Toolchain (without parser) took 37470.12ms. Allocated memory was 109.1MB in the beginning and 211.8MB in the end (delta: 102.8MB). Free memory was 67.5MB in the beginning and 162.9MB in the end (delta: -95.4MB). Peak memory consumption was 6.5MB. Max. memory is 16.1GB. [2021-11-13 18:05:29,267 INFO L158 Benchmark]: CDTParser took 0.36ms. Allocated memory is still 109.1MB. Free memory is still 84.7MB. There was no memory consumed. Max. memory is 16.1GB. [2021-11-13 18:05:29,268 INFO L158 Benchmark]: CACSL2BoogieTranslator took 715.90ms. Allocated memory is still 109.1MB. Free memory was 67.3MB in the beginning and 79.8MB in the end (delta: -12.5MB). Peak memory consumption was 6.5MB. Max. memory is 16.1GB. [2021-11-13 18:05:29,268 INFO L158 Benchmark]: Boogie Procedure Inliner took 86.70ms. Allocated memory is still 109.1MB. Free memory was 79.5MB in the beginning and 77.8MB in the end (delta: 1.7MB). There was no memory consumed. Max. memory is 16.1GB. [2021-11-13 18:05:29,268 INFO L158 Benchmark]: Boogie Preprocessor took 65.23ms. Allocated memory is still 109.1MB. Free memory was 77.8MB in the beginning and 76.5MB in the end (delta: 1.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-11-13 18:05:29,269 INFO L158 Benchmark]: RCFGBuilder took 532.00ms. Allocated memory is still 109.1MB. Free memory was 76.5MB in the beginning and 65.8MB in the end (delta: 10.8MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2021-11-13 18:05:29,269 INFO L158 Benchmark]: BuchiAutomizer took 36042.18ms. Allocated memory was 109.1MB in the beginning and 211.8MB in the end (delta: 102.8MB). Free memory was 65.8MB in the beginning and 162.9MB in the end (delta: -97.1MB). Peak memory consumption was 8.1MB. Max. memory is 16.1GB. [2021-11-13 18:05:29,269 INFO L158 Benchmark]: Witness Printer took 3.95ms. Allocated memory is still 211.8MB. Free memory is still 162.9MB. There was no memory consumed. Max. memory is 16.1GB. [2021-11-13 18:05:29,271 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.36ms. Allocated memory is still 109.1MB. Free memory is still 84.7MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 715.90ms. Allocated memory is still 109.1MB. Free memory was 67.3MB in the beginning and 79.8MB in the end (delta: -12.5MB). Peak memory consumption was 6.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 86.70ms. Allocated memory is still 109.1MB. Free memory was 79.5MB in the beginning and 77.8MB in the end (delta: 1.7MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 65.23ms. Allocated memory is still 109.1MB. Free memory was 77.8MB in the beginning and 76.5MB in the end (delta: 1.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 532.00ms. Allocated memory is still 109.1MB. Free memory was 76.5MB in the beginning and 65.8MB in the end (delta: 10.8MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * BuchiAutomizer took 36042.18ms. Allocated memory was 109.1MB in the beginning and 211.8MB in the end (delta: 102.8MB). Free memory was 65.8MB in the beginning and 162.9MB in the end (delta: -97.1MB). Peak memory consumption was 8.1MB. Max. memory is 16.1GB. * Witness Printer took 3.95ms. Allocated memory is still 211.8MB. Free memory is still 162.9MB. There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 7 terminating modules (2 trivial, 2 deterministic, 3 nondeterministic). One deterministic module has affine ranking function in_len + -1 * s and consists of 4 locations. One deterministic module has affine ranking function unknown-#length-unknown[__builtin_alloca (out_len)] + -1 * i and consists of 4 locations. One nondeterministic module has affine ranking function -2 * i + 3 * unknown-#length-unknown[reject] and consists of 8 locations. One nondeterministic module has affine ranking function 5 * unknown-#length-unknown[reject] + -2 * i and consists of 9 locations. One nondeterministic module has affine ranking function unknown-#length-unknown[reject] + -1 * reject + -1 * i and consists of 3 locations. 2 modules have a trivial ranking function, the largest among these consists of 13 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 35.9s and 8 iterations. TraceHistogramMax:6. Analysis of lassos took 30.5s. Construction of modules took 0.3s. Büchi inclusion checks took 4.8s. Highest rank in rank-based complementation 3. Minimization of det autom 2. Minimization of nondet autom 5. Automata minimization 0.1s AutomataMinimizationTime, 6 MinimizatonAttempts, 24 StatesRemovedByMinimization, 4 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 47 states and ocurred in iteration 6. Nontrivial modules had stage [2, 0, 3, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 327 SdHoareTripleChecker+Valid, 387.87ms IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 324 mSDsluCounter, 322 SdHoareTripleChecker+Invalid, 311.38ms Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 179 mSDsCounter, 54 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 229 IncrementalHoareTripleChecker+Invalid, 283 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 54 mSolverCounterUnsat, 143 mSDtfsCounter, 229 mSolverCounterSat, 24.46ms SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown LassoAnalysisResults: nont0 unkn0 SFLI1 SFLT0 conc1 concLT0 SILN0 SILU0 SILI0 SILT0 lasso5 LassoPreprocessingBenchmarks: Lassos: inital268 mio100 ax100 hnf99 lsp95 ukn76 mio100 lsp43 div100 bol100 ite100 ukn100 eq187 hnf88 smp97 dnf1596 smp67 tf100 neg89 sie127 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 106ms VariablesStem: 1 VariablesLoop: 2 DisjunctsStem: 2 DisjunctsLoop: 4 SupportingInvariants: 8 MotzkinApplications: 56 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 0 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 0 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.0s - TerminationAnalysisResult: Termination proven Buchi Automizer proved that your program is terminating RESULT: Ultimate proved your program to be correct! [2021-11-13 18:05:29,309 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_252716b3-0bc5-4342-9502-c4579df3009a/bin/uautomizer-YU5uOKAj3y/z3 -smt2 -in SMTLIB2_COMPLIANT=true (26)] Forceful destruction successful, exit code 0 [2021-11-13 18:05:29,526 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_252716b3-0bc5-4342-9502-c4579df3009a/bin/uautomizer-YU5uOKAj3y/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE