./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/array-memsafety/cstrspn-alloca-1.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 0f8a17c6 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2160eeb-bf7f-4ecc-b998-5d4a699c82ac/bin/uautomizer-ZXIjhQolGL/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2160eeb-bf7f-4ecc-b998-5d4a699c82ac/bin/uautomizer-ZXIjhQolGL/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2160eeb-bf7f-4ecc-b998-5d4a699c82ac/bin/uautomizer-ZXIjhQolGL/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2160eeb-bf7f-4ecc-b998-5d4a699c82ac/bin/uautomizer-ZXIjhQolGL/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/array-memsafety/cstrspn-alloca-1.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2160eeb-bf7f-4ecc-b998-5d4a699c82ac/bin/uautomizer-ZXIjhQolGL/config/svcomp-Termination-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2160eeb-bf7f-4ecc-b998-5d4a699c82ac/bin/uautomizer-ZXIjhQolGL --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(F end) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 45a8f33f173b19ce98ca13bb7c3a70605cebce85501309e729b51c966620adf7 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-0f8a17c [2021-11-19 04:34:44,513 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-19 04:34:44,516 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-19 04:34:44,561 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-19 04:34:44,561 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-19 04:34:44,563 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-19 04:34:44,565 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-19 04:34:44,568 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-19 04:34:44,570 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-19 04:34:44,572 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-19 04:34:44,573 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-19 04:34:44,575 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-19 04:34:44,576 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-19 04:34:44,577 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-19 04:34:44,579 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-19 04:34:44,581 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-19 04:34:44,587 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-19 04:34:44,589 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-19 04:34:44,593 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-19 04:34:44,608 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-19 04:34:44,610 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-19 04:34:44,612 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-19 04:34:44,617 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-19 04:34:44,619 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-19 04:34:44,632 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-19 04:34:44,632 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-19 04:34:44,633 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-19 04:34:44,634 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-19 04:34:44,635 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-19 04:34:44,637 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-19 04:34:44,637 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-19 04:34:44,639 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-19 04:34:44,640 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-19 04:34:44,641 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-19 04:34:44,643 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-19 04:34:44,643 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-19 04:34:44,644 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-19 04:34:44,645 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-19 04:34:44,645 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-19 04:34:44,647 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-19 04:34:44,648 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-19 04:34:44,649 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2160eeb-bf7f-4ecc-b998-5d4a699c82ac/bin/uautomizer-ZXIjhQolGL/config/svcomp-Termination-32bit-Automizer_Default.epf [2021-11-19 04:34:44,685 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-19 04:34:44,686 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-19 04:34:44,686 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-19 04:34:44,686 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-19 04:34:44,688 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-19 04:34:44,688 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-19 04:34:44,689 INFO L138 SettingsManager]: * Use SBE=true [2021-11-19 04:34:44,689 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2021-11-19 04:34:44,689 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2021-11-19 04:34:44,690 INFO L138 SettingsManager]: * Use old map elimination=false [2021-11-19 04:34:44,690 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2021-11-19 04:34:44,690 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2021-11-19 04:34:44,690 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2021-11-19 04:34:44,691 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-19 04:34:44,691 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-19 04:34:44,691 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-11-19 04:34:44,692 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-19 04:34:44,692 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-19 04:34:44,692 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-19 04:34:44,692 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2021-11-19 04:34:44,693 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2021-11-19 04:34:44,693 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2021-11-19 04:34:44,693 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-19 04:34:44,694 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-19 04:34:44,694 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2021-11-19 04:34:44,694 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-19 04:34:44,694 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2021-11-19 04:34:44,695 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-19 04:34:44,695 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-19 04:34:44,696 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-19 04:34:44,696 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-11-19 04:34:44,696 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-19 04:34:44,698 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2021-11-19 04:34:44,698 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_d2160eeb-bf7f-4ecc-b998-5d4a699c82ac/bin/uautomizer-ZXIjhQolGL/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2160eeb-bf7f-4ecc-b998-5d4a699c82ac/bin/uautomizer-ZXIjhQolGL Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 45a8f33f173b19ce98ca13bb7c3a70605cebce85501309e729b51c966620adf7 [2021-11-19 04:34:45,067 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-19 04:34:45,126 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-19 04:34:45,151 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-19 04:34:45,153 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-19 04:34:45,154 INFO L275 PluginConnector]: CDTParser initialized [2021-11-19 04:34:45,156 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2160eeb-bf7f-4ecc-b998-5d4a699c82ac/bin/uautomizer-ZXIjhQolGL/../../sv-benchmarks/c/array-memsafety/cstrspn-alloca-1.i [2021-11-19 04:34:45,306 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2160eeb-bf7f-4ecc-b998-5d4a699c82ac/bin/uautomizer-ZXIjhQolGL/data/4b8c13729/62a92d5acb574d55a2e904362b56108e/FLAG5b31eb369 [2021-11-19 04:34:46,020 INFO L306 CDTParser]: Found 1 translation units. [2021-11-19 04:34:46,022 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2160eeb-bf7f-4ecc-b998-5d4a699c82ac/sv-benchmarks/c/array-memsafety/cstrspn-alloca-1.i [2021-11-19 04:34:46,057 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2160eeb-bf7f-4ecc-b998-5d4a699c82ac/bin/uautomizer-ZXIjhQolGL/data/4b8c13729/62a92d5acb574d55a2e904362b56108e/FLAG5b31eb369 [2021-11-19 04:34:46,231 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2160eeb-bf7f-4ecc-b998-5d4a699c82ac/bin/uautomizer-ZXIjhQolGL/data/4b8c13729/62a92d5acb574d55a2e904362b56108e [2021-11-19 04:34:46,234 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-19 04:34:46,237 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-19 04:34:46,239 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-19 04:34:46,240 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-19 04:34:46,245 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-19 04:34:46,246 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 04:34:46" (1/1) ... [2021-11-19 04:34:46,248 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@27c7bf62 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:34:46, skipping insertion in model container [2021-11-19 04:34:46,249 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 04:34:46" (1/1) ... [2021-11-19 04:34:46,260 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-19 04:34:46,305 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-19 04:34:46,803 INFO L207 PostProcessor]: Analyzing one entry point: main [2021-11-19 04:34:46,817 INFO L203 MainTranslator]: Completed pre-run [2021-11-19 04:34:46,903 INFO L207 PostProcessor]: Analyzing one entry point: main [2021-11-19 04:34:46,940 INFO L208 MainTranslator]: Completed translation [2021-11-19 04:34:46,941 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:34:46 WrapperNode [2021-11-19 04:34:46,942 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-19 04:34:46,943 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-19 04:34:46,944 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-19 04:34:46,944 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-19 04:34:46,954 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:34:46" (1/1) ... [2021-11-19 04:34:46,972 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:34:46" (1/1) ... [2021-11-19 04:34:47,004 INFO L137 Inliner]: procedures = 117, calls = 18, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 99 [2021-11-19 04:34:47,005 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-19 04:34:47,006 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-19 04:34:47,006 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-19 04:34:47,006 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-19 04:34:47,018 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:34:46" (1/1) ... [2021-11-19 04:34:47,019 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:34:46" (1/1) ... [2021-11-19 04:34:47,023 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:34:46" (1/1) ... [2021-11-19 04:34:47,024 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:34:46" (1/1) ... [2021-11-19 04:34:47,033 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:34:46" (1/1) ... [2021-11-19 04:34:47,038 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:34:46" (1/1) ... [2021-11-19 04:34:47,041 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:34:46" (1/1) ... [2021-11-19 04:34:47,045 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-19 04:34:47,046 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-19 04:34:47,046 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-19 04:34:47,046 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-19 04:34:47,048 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:34:46" (1/1) ... [2021-11-19 04:34:47,059 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-19 04:34:47,084 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2160eeb-bf7f-4ecc-b998-5d4a699c82ac/bin/uautomizer-ZXIjhQolGL/z3 [2021-11-19 04:34:47,101 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2160eeb-bf7f-4ecc-b998-5d4a699c82ac/bin/uautomizer-ZXIjhQolGL/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-19 04:34:47,115 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2160eeb-bf7f-4ecc-b998-5d4a699c82ac/bin/uautomizer-ZXIjhQolGL/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2021-11-19 04:34:47,159 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-11-19 04:34:47,159 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-11-19 04:34:47,159 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-19 04:34:47,160 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-19 04:34:47,160 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-19 04:34:47,160 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-19 04:34:47,277 INFO L236 CfgBuilder]: Building ICFG [2021-11-19 04:34:47,279 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-19 04:34:47,576 INFO L277 CfgBuilder]: Performing block encoding [2021-11-19 04:34:47,585 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-19 04:34:47,585 INFO L301 CfgBuilder]: Removed 4 assume(true) statements. [2021-11-19 04:34:47,588 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 04:34:47 BoogieIcfgContainer [2021-11-19 04:34:47,588 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-19 04:34:47,589 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2021-11-19 04:34:47,590 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2021-11-19 04:34:47,609 INFO L275 PluginConnector]: BuchiAutomizer initialized [2021-11-19 04:34:47,610 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-11-19 04:34:47,611 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 19.11 04:34:46" (1/3) ... [2021-11-19 04:34:47,613 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@50c613cc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 19.11 04:34:47, skipping insertion in model container [2021-11-19 04:34:47,613 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-11-19 04:34:47,613 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:34:46" (2/3) ... [2021-11-19 04:34:47,614 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@50c613cc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 19.11 04:34:47, skipping insertion in model container [2021-11-19 04:34:47,614 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-11-19 04:34:47,614 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 04:34:47" (3/3) ... [2021-11-19 04:34:47,616 INFO L388 chiAutomizerObserver]: Analyzing ICFG cstrspn-alloca-1.i [2021-11-19 04:34:47,684 INFO L359 BuchiCegarLoop]: Interprodecural is true [2021-11-19 04:34:47,684 INFO L360 BuchiCegarLoop]: Hoare is false [2021-11-19 04:34:47,685 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2021-11-19 04:34:47,685 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2021-11-19 04:34:47,685 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-11-19 04:34:47,685 INFO L364 BuchiCegarLoop]: Difference is false [2021-11-19 04:34:47,685 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-11-19 04:34:47,686 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2021-11-19 04:34:47,707 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 24 states, 23 states have (on average 1.5217391304347827) internal successors, (35), 23 states have internal predecessors, (35), 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) [2021-11-19 04:34:47,735 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 12 [2021-11-19 04:34:47,735 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-11-19 04:34:47,735 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-11-19 04:34:47,744 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1] [2021-11-19 04:34:47,744 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2021-11-19 04:34:47,744 INFO L425 BuchiCegarLoop]: ======== Iteration 1============ [2021-11-19 04:34:47,745 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 24 states, 23 states have (on average 1.5217391304347827) internal successors, (35), 23 states have internal predecessors, (35), 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) [2021-11-19 04:34:47,748 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 12 [2021-11-19 04:34:47,748 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-11-19 04:34:47,748 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-11-19 04:34:47,749 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1] [2021-11-19 04:34:47,749 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2021-11-19 04:34:47,759 INFO L791 eck$LassoCheckResult]: Stem: 5#ULTIMATE.startENTRYtrue assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier; 10#L-1true assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet10#1, main_#t~nondet11#1, main_#t~malloc12#1.base, main_#t~malloc12#1.offset, main_#t~malloc13#1.base, main_#t~malloc13#1.offset, main_#t~nondet15#1, main_#t~post14#1, main_~i~0#1, main_#t~nondet17#1, main_#t~post16#1, main_~i~1#1, main_#t~ret18#1, main_~length1~0#1, main_~length2~0#1, main_~nondetString1~0#1.base, main_~nondetString1~0#1.offset, main_~nondetString2~0#1.base, main_~nondetString2~0#1.offset;main_~length1~0#1 := main_#t~nondet10#1;havoc main_#t~nondet10#1;main_~length2~0#1 := main_#t~nondet11#1;havoc main_#t~nondet11#1; 11#L532true assume !(main_~length1~0#1 < 1); 6#L532-2true assume !(main_~length2~0#1 < 1); 3#L535-1true call main_#t~malloc12#1.base, main_#t~malloc12#1.offset := #Ultimate.allocOnStack(main_~length1~0#1);main_~nondetString1~0#1.base, main_~nondetString1~0#1.offset := main_#t~malloc12#1.base, main_#t~malloc12#1.offset;call main_#t~malloc13#1.base, main_#t~malloc13#1.offset := #Ultimate.allocOnStack(main_~length2~0#1);main_~nondetString2~0#1.base, main_~nondetString2~0#1.offset := main_#t~malloc13#1.base, main_#t~malloc13#1.offset;main_~i~0#1 := 0; 20#L541-3true [2021-11-19 04:34:47,760 INFO L793 eck$LassoCheckResult]: Loop: 20#L541-3true assume !!(main_~i~0#1 < main_~length1~0#1 - 1);call write~int(main_#t~nondet15#1, main_~nondetString1~0#1.base, main_~nondetString1~0#1.offset + main_~i~0#1, 1);havoc main_#t~nondet15#1; 25#L541-2true main_#t~post14#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post14#1;havoc main_#t~post14#1; 20#L541-3true [2021-11-19 04:34:47,768 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 04:34:47,769 INFO L85 PathProgramCache]: Analyzing trace with hash 28695878, now seen corresponding path program 1 times [2021-11-19 04:34:47,783 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-19 04:34:47,784 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1013993892] [2021-11-19 04:34:47,784 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 04:34:47,786 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-19 04:34:47,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-19 04:34:47,913 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-19 04:34:47,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-19 04:34:47,957 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-11-19 04:34:47,961 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 04:34:47,961 INFO L85 PathProgramCache]: Analyzing trace with hash 1699, now seen corresponding path program 1 times [2021-11-19 04:34:47,962 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-19 04:34:47,963 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1364695021] [2021-11-19 04:34:47,963 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 04:34:47,963 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-19 04:34:47,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-19 04:34:47,994 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-19 04:34:48,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-19 04:34:48,014 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-11-19 04:34:48,018 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 04:34:48,019 INFO L85 PathProgramCache]: Analyzing trace with hash 1806935720, now seen corresponding path program 1 times [2021-11-19 04:34:48,019 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-19 04:34:48,019 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2050475940] [2021-11-19 04:34:48,020 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 04:34:48,020 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-19 04:34:48,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-19 04:34:48,088 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-19 04:34:48,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-19 04:34:48,156 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-11-19 04:34:48,836 INFO L210 LassoAnalysis]: Preferences: [2021-11-19 04:34:48,837 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-11-19 04:34:48,837 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-11-19 04:34:48,837 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-11-19 04:34:48,838 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2021-11-19 04:34:48,839 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-19 04:34:48,839 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-11-19 04:34:48,839 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-11-19 04:34:48,839 INFO L133 ssoRankerPreferences]: Filename of dumped script: cstrspn-alloca-1.i_Iteration1_Lasso [2021-11-19 04:34:48,840 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-11-19 04:34:48,840 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-11-19 04:34:48,885 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-19 04:34:48,893 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-19 04:34:49,081 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-19 04:34:49,088 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-19 04:34:49,091 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-19 04:34:49,095 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-19 04:34:49,098 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-19 04:34:49,102 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-19 04:34:49,108 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-19 04:34:49,112 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-19 04:34:49,117 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-19 04:34:49,122 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-19 04:34:49,126 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-19 04:34:49,133 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-19 04:34:49,138 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-19 04:34:49,492 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-11-19 04:34:49,498 INFO L490 LassoAnalysis]: Using template 'affine'. [2021-11-19 04:34:49,504 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-19 04:34:49,505 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2160eeb-bf7f-4ecc-b998-5d4a699c82ac/bin/uautomizer-ZXIjhQolGL/z3 [2021-11-19 04:34:49,507 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2160eeb-bf7f-4ecc-b998-5d4a699c82ac/bin/uautomizer-ZXIjhQolGL/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-19 04:34:49,511 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2160eeb-bf7f-4ecc-b998-5d4a699c82ac/bin/uautomizer-ZXIjhQolGL/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Waiting until timeout for monitored process [2021-11-19 04:34:49,516 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 [2021-11-19 04:34:49,527 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-19 04:34:49,527 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-11-19 04:34:49,528 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-19 04:34:49,528 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-19 04:34:49,528 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-19 04:34:49,533 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-11-19 04:34:49,533 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-11-19 04:34:49,547 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-11-19 04:34:49,597 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2160eeb-bf7f-4ecc-b998-5d4a699c82ac/bin/uautomizer-ZXIjhQolGL/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Forceful destruction successful, exit code 0 [2021-11-19 04:34:49,597 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-19 04:34:49,598 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2160eeb-bf7f-4ecc-b998-5d4a699c82ac/bin/uautomizer-ZXIjhQolGL/z3 [2021-11-19 04:34:49,604 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2160eeb-bf7f-4ecc-b998-5d4a699c82ac/bin/uautomizer-ZXIjhQolGL/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-19 04:34:49,612 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 [2021-11-19 04:34:49,625 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-19 04:34:49,626 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-19 04:34:49,626 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-19 04:34:49,626 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-19 04:34:49,628 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2160eeb-bf7f-4ecc-b998-5d4a699c82ac/bin/uautomizer-ZXIjhQolGL/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Waiting until timeout for monitored process [2021-11-19 04:34:49,645 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-11-19 04:34:49,646 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-11-19 04:34:49,663 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-11-19 04:34:49,692 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2160eeb-bf7f-4ecc-b998-5d4a699c82ac/bin/uautomizer-ZXIjhQolGL/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Forceful destruction successful, exit code 0 [2021-11-19 04:34:49,693 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-19 04:34:49,693 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2160eeb-bf7f-4ecc-b998-5d4a699c82ac/bin/uautomizer-ZXIjhQolGL/z3 [2021-11-19 04:34:49,694 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2160eeb-bf7f-4ecc-b998-5d4a699c82ac/bin/uautomizer-ZXIjhQolGL/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-19 04:34:49,695 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2160eeb-bf7f-4ecc-b998-5d4a699c82ac/bin/uautomizer-ZXIjhQolGL/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Waiting until timeout for monitored process [2021-11-19 04:34:49,696 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 [2021-11-19 04:34:49,708 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-19 04:34:49,708 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-19 04:34:49,708 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-19 04:34:49,708 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-19 04:34:49,716 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-11-19 04:34:49,716 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-11-19 04:34:49,735 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-11-19 04:34:49,761 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2160eeb-bf7f-4ecc-b998-5d4a699c82ac/bin/uautomizer-ZXIjhQolGL/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Forceful destruction successful, exit code 0 [2021-11-19 04:34:49,761 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-19 04:34:49,761 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2160eeb-bf7f-4ecc-b998-5d4a699c82ac/bin/uautomizer-ZXIjhQolGL/z3 [2021-11-19 04:34:49,763 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2160eeb-bf7f-4ecc-b998-5d4a699c82ac/bin/uautomizer-ZXIjhQolGL/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-19 04:34:49,764 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2160eeb-bf7f-4ecc-b998-5d4a699c82ac/bin/uautomizer-ZXIjhQolGL/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Waiting until timeout for monitored process [2021-11-19 04:34:49,765 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 [2021-11-19 04:34:49,775 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-19 04:34:49,776 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-19 04:34:49,776 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-19 04:34:49,776 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-19 04:34:49,809 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-11-19 04:34:49,810 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-11-19 04:34:49,829 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2021-11-19 04:34:49,884 INFO L443 ModelExtractionUtils]: Simplification made 16 calls to the SMT solver. [2021-11-19 04:34:49,884 INFO L444 ModelExtractionUtils]: 8 out of 22 variables were initially zero. Simplification set additionally 10 variables to zero. [2021-11-19 04:34:49,887 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-19 04:34:49,887 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2160eeb-bf7f-4ecc-b998-5d4a699c82ac/bin/uautomizer-ZXIjhQolGL/z3 [2021-11-19 04:34:49,921 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2160eeb-bf7f-4ecc-b998-5d4a699c82ac/bin/uautomizer-ZXIjhQolGL/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-19 04:34:49,950 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2021-11-19 04:34:49,950 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2160eeb-bf7f-4ecc-b998-5d4a699c82ac/bin/uautomizer-ZXIjhQolGL/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Waiting until timeout for monitored process [2021-11-19 04:34:49,972 INFO L438 nArgumentSynthesizer]: Removed 1 redundant supporting invariants from a total of 2. [2021-11-19 04:34:49,973 INFO L513 LassoAnalysis]: Proved termination. [2021-11-19 04:34:49,973 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(v_rep(select #length ULTIMATE.start_main_#t~malloc12#1.base)_1, ULTIMATE.start_main_~i~0#1) = 1*v_rep(select #length ULTIMATE.start_main_#t~malloc12#1.base)_1 - 1*ULTIMATE.start_main_~i~0#1 Supporting invariants [1*ULTIMATE.start_main_~nondetString1~0#1.offset >= 0] [2021-11-19 04:34:50,021 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2160eeb-bf7f-4ecc-b998-5d4a699c82ac/bin/uautomizer-ZXIjhQolGL/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Forceful destruction successful, exit code 0 [2021-11-19 04:34:50,058 INFO L297 tatePredicateManager]: 5 out of 7 supporting invariants were superfluous and have been removed [2021-11-19 04:34:50,132 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 04:34:50,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 04:34:50,168 INFO L263 TraceCheckSpWp]: Trace formula consists of 36 conjuncts, 6 conjunts are in the unsatisfiable core [2021-11-19 04:34:50,170 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 04:34:50,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 04:34:50,225 WARN L261 TraceCheckSpWp]: Trace formula consists of 13 conjuncts, 7 conjunts are in the unsatisfiable core [2021-11-19 04:34:50,226 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 04:34:50,283 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-19 04:34:50,324 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 [2021-11-19 04:34:50,326 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand has 24 states, 23 states have (on average 1.5217391304347827) internal successors, (35), 23 states have internal predecessors, (35), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 3 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-19 04:34:50,468 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand has 24 states, 23 states have (on average 1.5217391304347827) internal successors, (35), 23 states have internal predecessors, (35), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0). Second operand has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 3 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 57 states and 84 transitions. Complement of second has 8 states. [2021-11-19 04:34:50,470 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 5 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2021-11-19 04:34:50,476 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 3 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-19 04:34:50,477 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 56 transitions. [2021-11-19 04:34:50,479 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 56 transitions. Stem has 5 letters. Loop has 2 letters. [2021-11-19 04:34:50,480 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-11-19 04:34:50,481 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 56 transitions. Stem has 7 letters. Loop has 2 letters. [2021-11-19 04:34:50,481 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-11-19 04:34:50,481 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 56 transitions. Stem has 5 letters. Loop has 4 letters. [2021-11-19 04:34:50,481 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-11-19 04:34:50,483 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 57 states and 84 transitions. [2021-11-19 04:34:50,492 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 10 [2021-11-19 04:34:50,501 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 57 states to 20 states and 27 transitions. [2021-11-19 04:34:50,502 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 17 [2021-11-19 04:34:50,503 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 18 [2021-11-19 04:34:50,503 INFO L73 IsDeterministic]: Start isDeterministic. Operand 20 states and 27 transitions. [2021-11-19 04:34:50,505 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-11-19 04:34:50,505 INFO L681 BuchiCegarLoop]: Abstraction has 20 states and 27 transitions. [2021-11-19 04:34:50,527 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20 states and 27 transitions. [2021-11-19 04:34:50,539 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20 to 20. [2021-11-19 04:34:50,540 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 20 states, 20 states have (on average 1.35) internal successors, (27), 19 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) [2021-11-19 04:34:50,544 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 27 transitions. [2021-11-19 04:34:50,545 INFO L704 BuchiCegarLoop]: Abstraction has 20 states and 27 transitions. [2021-11-19 04:34:50,545 INFO L587 BuchiCegarLoop]: Abstraction has 20 states and 27 transitions. [2021-11-19 04:34:50,546 INFO L425 BuchiCegarLoop]: ======== Iteration 2============ [2021-11-19 04:34:50,546 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 20 states and 27 transitions. [2021-11-19 04:34:50,551 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 10 [2021-11-19 04:34:50,551 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-11-19 04:34:50,552 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-11-19 04:34:50,552 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2021-11-19 04:34:50,552 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2021-11-19 04:34:50,553 INFO L791 eck$LassoCheckResult]: Stem: 165#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier; 166#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet10#1, main_#t~nondet11#1, main_#t~malloc12#1.base, main_#t~malloc12#1.offset, main_#t~malloc13#1.base, main_#t~malloc13#1.offset, main_#t~nondet15#1, main_#t~post14#1, main_~i~0#1, main_#t~nondet17#1, main_#t~post16#1, main_~i~1#1, main_#t~ret18#1, main_~length1~0#1, main_~length2~0#1, main_~nondetString1~0#1.base, main_~nondetString1~0#1.offset, main_~nondetString2~0#1.base, main_~nondetString2~0#1.offset;main_~length1~0#1 := main_#t~nondet10#1;havoc main_#t~nondet10#1;main_~length2~0#1 := main_#t~nondet11#1;havoc main_#t~nondet11#1; 173#L532 assume !(main_~length1~0#1 < 1); 167#L532-2 assume !(main_~length2~0#1 < 1); 163#L535-1 call main_#t~malloc12#1.base, main_#t~malloc12#1.offset := #Ultimate.allocOnStack(main_~length1~0#1);main_~nondetString1~0#1.base, main_~nondetString1~0#1.offset := main_#t~malloc12#1.base, main_#t~malloc12#1.offset;call main_#t~malloc13#1.base, main_#t~malloc13#1.offset := #Ultimate.allocOnStack(main_~length2~0#1);main_~nondetString2~0#1.base, main_~nondetString2~0#1.offset := main_#t~malloc13#1.base, main_#t~malloc13#1.offset;main_~i~0#1 := 0; 164#L541-3 assume !(main_~i~0#1 < main_~length1~0#1 - 1); 174#L541-4 main_~i~1#1 := 0; 170#L546-3 [2021-11-19 04:34:50,553 INFO L793 eck$LassoCheckResult]: Loop: 170#L546-3 assume !!(main_~i~1#1 < main_~length2~0#1 - 1);call write~int(main_#t~nondet17#1, main_~nondetString2~0#1.base, main_~nondetString2~0#1.offset + main_~i~1#1, 1);havoc main_#t~nondet17#1; 172#L546-2 main_#t~post16#1 := main_~i~1#1;main_~i~1#1 := 1 + main_#t~post16#1;havoc main_#t~post16#1; 170#L546-3 [2021-11-19 04:34:50,555 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 04:34:50,555 INFO L85 PathProgramCache]: Analyzing trace with hash 1806935662, now seen corresponding path program 1 times [2021-11-19 04:34:50,556 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-19 04:34:50,556 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [25231143] [2021-11-19 04:34:50,556 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 04:34:50,558 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-19 04:34:50,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-19 04:34:50,607 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-19 04:34:50,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-19 04:34:50,628 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-11-19 04:34:50,629 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 04:34:50,629 INFO L85 PathProgramCache]: Analyzing trace with hash 2147, now seen corresponding path program 1 times [2021-11-19 04:34:50,629 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-19 04:34:50,630 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [490740213] [2021-11-19 04:34:50,630 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 04:34:50,630 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-19 04:34:50,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-19 04:34:50,649 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-19 04:34:50,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-19 04:34:50,662 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-11-19 04:34:50,662 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 04:34:50,663 INFO L85 PathProgramCache]: Analyzing trace with hash 1298384784, now seen corresponding path program 1 times [2021-11-19 04:34:50,663 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-19 04:34:50,665 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1382235593] [2021-11-19 04:34:50,665 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 04:34:50,665 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-19 04:34:50,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-19 04:34:50,694 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-19 04:34:50,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-19 04:34:50,714 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-11-19 04:34:51,153 INFO L210 LassoAnalysis]: Preferences: [2021-11-19 04:34:51,154 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-11-19 04:34:51,154 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-11-19 04:34:51,154 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-11-19 04:34:51,154 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2021-11-19 04:34:51,154 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-19 04:34:51,154 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-11-19 04:34:51,154 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-11-19 04:34:51,155 INFO L133 ssoRankerPreferences]: Filename of dumped script: cstrspn-alloca-1.i_Iteration2_Lasso [2021-11-19 04:34:51,155 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-11-19 04:34:51,155 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-11-19 04:34:51,159 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-19 04:34:51,163 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-19 04:34:51,169 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-19 04:34:51,176 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-19 04:34:51,180 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-19 04:34:51,183 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-19 04:34:51,186 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-19 04:34:51,190 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-19 04:34:51,193 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-19 04:34:51,195 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-19 04:34:51,198 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-19 04:34:51,201 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-19 04:34:51,205 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-19 04:34:51,376 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2160eeb-bf7f-4ecc-b998-5d4a699c82ac/bin/uautomizer-ZXIjhQolGL/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Forceful destruction successful, exit code 0 [2021-11-19 04:34:51,417 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-19 04:34:51,759 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-11-19 04:34:51,760 INFO L490 LassoAnalysis]: Using template 'affine'. [2021-11-19 04:34:51,760 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-19 04:34:51,760 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2160eeb-bf7f-4ecc-b998-5d4a699c82ac/bin/uautomizer-ZXIjhQolGL/z3 [2021-11-19 04:34:51,767 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2160eeb-bf7f-4ecc-b998-5d4a699c82ac/bin/uautomizer-ZXIjhQolGL/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-19 04:34:51,773 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 [2021-11-19 04:34:51,786 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-19 04:34:51,786 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-11-19 04:34:51,786 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-19 04:34:51,786 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-19 04:34:51,786 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-19 04:34:51,786 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2160eeb-bf7f-4ecc-b998-5d4a699c82ac/bin/uautomizer-ZXIjhQolGL/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Waiting until timeout for monitored process [2021-11-19 04:34:51,788 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-11-19 04:34:51,788 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-11-19 04:34:51,803 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-11-19 04:34:51,850 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2160eeb-bf7f-4ecc-b998-5d4a699c82ac/bin/uautomizer-ZXIjhQolGL/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Forceful destruction successful, exit code 0 [2021-11-19 04:34:51,850 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-19 04:34:51,850 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2160eeb-bf7f-4ecc-b998-5d4a699c82ac/bin/uautomizer-ZXIjhQolGL/z3 [2021-11-19 04:34:51,851 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2160eeb-bf7f-4ecc-b998-5d4a699c82ac/bin/uautomizer-ZXIjhQolGL/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-19 04:34:51,854 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2160eeb-bf7f-4ecc-b998-5d4a699c82ac/bin/uautomizer-ZXIjhQolGL/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Waiting until timeout for monitored process [2021-11-19 04:34:51,858 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 [2021-11-19 04:34:51,868 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-19 04:34:51,868 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-11-19 04:34:51,868 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-19 04:34:51,869 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-19 04:34:51,869 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-19 04:34:51,870 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-11-19 04:34:51,870 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-11-19 04:34:51,903 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-11-19 04:34:51,954 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2160eeb-bf7f-4ecc-b998-5d4a699c82ac/bin/uautomizer-ZXIjhQolGL/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Forceful destruction successful, exit code 0 [2021-11-19 04:34:51,955 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-19 04:34:51,955 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2160eeb-bf7f-4ecc-b998-5d4a699c82ac/bin/uautomizer-ZXIjhQolGL/z3 [2021-11-19 04:34:51,957 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2160eeb-bf7f-4ecc-b998-5d4a699c82ac/bin/uautomizer-ZXIjhQolGL/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-19 04:34:51,960 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-11-19 04:34:51,972 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-19 04:34:51,973 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-19 04:34:51,973 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-19 04:34:51,973 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-19 04:34:51,977 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2160eeb-bf7f-4ecc-b998-5d4a699c82ac/bin/uautomizer-ZXIjhQolGL/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Waiting until timeout for monitored process [2021-11-19 04:34:51,978 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-11-19 04:34:51,978 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-11-19 04:34:51,995 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-11-19 04:34:52,044 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2160eeb-bf7f-4ecc-b998-5d4a699c82ac/bin/uautomizer-ZXIjhQolGL/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Forceful destruction successful, exit code 0 [2021-11-19 04:34:52,044 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-19 04:34:52,045 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2160eeb-bf7f-4ecc-b998-5d4a699c82ac/bin/uautomizer-ZXIjhQolGL/z3 [2021-11-19 04:34:52,048 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2160eeb-bf7f-4ecc-b998-5d4a699c82ac/bin/uautomizer-ZXIjhQolGL/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-19 04:34:52,055 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-11-19 04:34:52,067 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-19 04:34:52,067 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-19 04:34:52,068 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-19 04:34:52,068 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-19 04:34:52,070 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-11-19 04:34:52,071 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-11-19 04:34:52,072 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2160eeb-bf7f-4ecc-b998-5d4a699c82ac/bin/uautomizer-ZXIjhQolGL/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Waiting until timeout for monitored process [2021-11-19 04:34:52,087 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-11-19 04:34:52,136 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2160eeb-bf7f-4ecc-b998-5d4a699c82ac/bin/uautomizer-ZXIjhQolGL/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Forceful destruction successful, exit code 0 [2021-11-19 04:34:52,137 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-19 04:34:52,137 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2160eeb-bf7f-4ecc-b998-5d4a699c82ac/bin/uautomizer-ZXIjhQolGL/z3 [2021-11-19 04:34:52,139 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2160eeb-bf7f-4ecc-b998-5d4a699c82ac/bin/uautomizer-ZXIjhQolGL/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-19 04:34:52,145 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2160eeb-bf7f-4ecc-b998-5d4a699c82ac/bin/uautomizer-ZXIjhQolGL/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Waiting until timeout for monitored process [2021-11-19 04:34:52,145 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 [2021-11-19 04:34:52,158 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-19 04:34:52,158 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-11-19 04:34:52,158 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-19 04:34:52,158 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-19 04:34:52,158 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-19 04:34:52,159 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-11-19 04:34:52,159 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-11-19 04:34:52,172 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-11-19 04:34:52,199 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2160eeb-bf7f-4ecc-b998-5d4a699c82ac/bin/uautomizer-ZXIjhQolGL/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Forceful destruction successful, exit code 0 [2021-11-19 04:34:52,200 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-19 04:34:52,200 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2160eeb-bf7f-4ecc-b998-5d4a699c82ac/bin/uautomizer-ZXIjhQolGL/z3 [2021-11-19 04:34:52,201 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2160eeb-bf7f-4ecc-b998-5d4a699c82ac/bin/uautomizer-ZXIjhQolGL/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-19 04:34:52,203 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2160eeb-bf7f-4ecc-b998-5d4a699c82ac/bin/uautomizer-ZXIjhQolGL/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Waiting until timeout for monitored process [2021-11-19 04:34:52,203 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-11-19 04:34:52,213 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-19 04:34:52,214 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-19 04:34:52,214 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-19 04:34:52,214 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-19 04:34:52,218 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-11-19 04:34:52,218 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-11-19 04:34:52,236 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-11-19 04:34:52,279 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2160eeb-bf7f-4ecc-b998-5d4a699c82ac/bin/uautomizer-ZXIjhQolGL/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Forceful destruction successful, exit code 0 [2021-11-19 04:34:52,279 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-19 04:34:52,279 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2160eeb-bf7f-4ecc-b998-5d4a699c82ac/bin/uautomizer-ZXIjhQolGL/z3 [2021-11-19 04:34:52,280 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2160eeb-bf7f-4ecc-b998-5d4a699c82ac/bin/uautomizer-ZXIjhQolGL/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-19 04:34:52,281 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2160eeb-bf7f-4ecc-b998-5d4a699c82ac/bin/uautomizer-ZXIjhQolGL/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Waiting until timeout for monitored process [2021-11-19 04:34:52,282 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 [2021-11-19 04:34:52,294 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-19 04:34:52,295 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-19 04:34:52,295 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-19 04:34:52,295 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-19 04:34:52,298 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-11-19 04:34:52,298 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-11-19 04:34:52,319 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-11-19 04:34:52,350 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2160eeb-bf7f-4ecc-b998-5d4a699c82ac/bin/uautomizer-ZXIjhQolGL/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Forceful destruction successful, exit code 0 [2021-11-19 04:34:52,350 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-19 04:34:52,350 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2160eeb-bf7f-4ecc-b998-5d4a699c82ac/bin/uautomizer-ZXIjhQolGL/z3 [2021-11-19 04:34:52,352 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2160eeb-bf7f-4ecc-b998-5d4a699c82ac/bin/uautomizer-ZXIjhQolGL/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-19 04:34:52,357 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 [2021-11-19 04:34:52,357 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2160eeb-bf7f-4ecc-b998-5d4a699c82ac/bin/uautomizer-ZXIjhQolGL/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (14)] Waiting until timeout for monitored process [2021-11-19 04:34:52,367 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-19 04:34:52,367 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-11-19 04:34:52,367 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-19 04:34:52,367 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-19 04:34:52,367 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-19 04:34:52,368 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-11-19 04:34:52,368 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-11-19 04:34:52,370 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-11-19 04:34:52,400 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2160eeb-bf7f-4ecc-b998-5d4a699c82ac/bin/uautomizer-ZXIjhQolGL/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (14)] Forceful destruction successful, exit code 0 [2021-11-19 04:34:52,400 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-19 04:34:52,400 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2160eeb-bf7f-4ecc-b998-5d4a699c82ac/bin/uautomizer-ZXIjhQolGL/z3 [2021-11-19 04:34:52,412 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2160eeb-bf7f-4ecc-b998-5d4a699c82ac/bin/uautomizer-ZXIjhQolGL/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-19 04:34:52,419 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2160eeb-bf7f-4ecc-b998-5d4a699c82ac/bin/uautomizer-ZXIjhQolGL/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (15)] Waiting until timeout for monitored process [2021-11-19 04:34:52,420 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 [2021-11-19 04:34:52,430 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-19 04:34:52,431 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-11-19 04:34:52,431 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-19 04:34:52,431 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-19 04:34:52,431 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-19 04:34:52,432 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-11-19 04:34:52,432 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-11-19 04:34:52,434 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-11-19 04:34:52,461 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2160eeb-bf7f-4ecc-b998-5d4a699c82ac/bin/uautomizer-ZXIjhQolGL/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (15)] Forceful destruction successful, exit code 0 [2021-11-19 04:34:52,461 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-19 04:34:52,461 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2160eeb-bf7f-4ecc-b998-5d4a699c82ac/bin/uautomizer-ZXIjhQolGL/z3 [2021-11-19 04:34:52,462 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2160eeb-bf7f-4ecc-b998-5d4a699c82ac/bin/uautomizer-ZXIjhQolGL/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-19 04:34:52,463 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2160eeb-bf7f-4ecc-b998-5d4a699c82ac/bin/uautomizer-ZXIjhQolGL/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (16)] Waiting until timeout for monitored process [2021-11-19 04:34:52,464 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 [2021-11-19 04:34:52,474 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-19 04:34:52,474 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-11-19 04:34:52,474 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-19 04:34:52,474 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-19 04:34:52,474 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-19 04:34:52,475 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-11-19 04:34:52,475 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-11-19 04:34:52,503 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-11-19 04:34:52,534 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2160eeb-bf7f-4ecc-b998-5d4a699c82ac/bin/uautomizer-ZXIjhQolGL/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (16)] Forceful destruction successful, exit code 0 [2021-11-19 04:34:52,535 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-19 04:34:52,535 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2160eeb-bf7f-4ecc-b998-5d4a699c82ac/bin/uautomizer-ZXIjhQolGL/z3 [2021-11-19 04:34:52,536 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2160eeb-bf7f-4ecc-b998-5d4a699c82ac/bin/uautomizer-ZXIjhQolGL/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-19 04:34:52,538 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2160eeb-bf7f-4ecc-b998-5d4a699c82ac/bin/uautomizer-ZXIjhQolGL/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (17)] Waiting until timeout for monitored process [2021-11-19 04:34:52,539 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 [2021-11-19 04:34:52,548 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-19 04:34:52,549 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-11-19 04:34:52,549 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-19 04:34:52,549 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-19 04:34:52,549 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-19 04:34:52,550 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-11-19 04:34:52,550 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-11-19 04:34:52,551 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-11-19 04:34:52,577 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2160eeb-bf7f-4ecc-b998-5d4a699c82ac/bin/uautomizer-ZXIjhQolGL/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (17)] Forceful destruction successful, exit code 0 [2021-11-19 04:34:52,578 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-19 04:34:52,578 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2160eeb-bf7f-4ecc-b998-5d4a699c82ac/bin/uautomizer-ZXIjhQolGL/z3 [2021-11-19 04:34:52,579 INFO L229 MonitoredProcess]: Starting monitored process 18 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2160eeb-bf7f-4ecc-b998-5d4a699c82ac/bin/uautomizer-ZXIjhQolGL/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-19 04:34:52,581 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2160eeb-bf7f-4ecc-b998-5d4a699c82ac/bin/uautomizer-ZXIjhQolGL/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (18)] Waiting until timeout for monitored process [2021-11-19 04:34:52,582 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 [2021-11-19 04:34:52,592 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-19 04:34:52,592 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-19 04:34:52,592 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-19 04:34:52,592 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-19 04:34:52,594 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-11-19 04:34:52,595 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-11-19 04:34:52,623 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-11-19 04:34:52,666 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2160eeb-bf7f-4ecc-b998-5d4a699c82ac/bin/uautomizer-ZXIjhQolGL/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (18)] Forceful destruction successful, exit code 0 [2021-11-19 04:34:52,666 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-19 04:34:52,666 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2160eeb-bf7f-4ecc-b998-5d4a699c82ac/bin/uautomizer-ZXIjhQolGL/z3 [2021-11-19 04:34:52,672 INFO L229 MonitoredProcess]: Starting monitored process 19 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2160eeb-bf7f-4ecc-b998-5d4a699c82ac/bin/uautomizer-ZXIjhQolGL/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-19 04:34:52,677 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2160eeb-bf7f-4ecc-b998-5d4a699c82ac/bin/uautomizer-ZXIjhQolGL/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (19)] Waiting until timeout for monitored process [2021-11-19 04:34:52,678 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 [2021-11-19 04:34:52,690 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-19 04:34:52,691 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-19 04:34:52,691 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-19 04:34:52,691 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-19 04:34:52,699 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-11-19 04:34:52,699 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-11-19 04:34:52,725 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2021-11-19 04:34:52,760 INFO L443 ModelExtractionUtils]: Simplification made 8 calls to the SMT solver. [2021-11-19 04:34:52,760 INFO L444 ModelExtractionUtils]: 6 out of 22 variables were initially zero. Simplification set additionally 13 variables to zero. [2021-11-19 04:34:52,760 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-19 04:34:52,760 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2160eeb-bf7f-4ecc-b998-5d4a699c82ac/bin/uautomizer-ZXIjhQolGL/z3 [2021-11-19 04:34:52,762 INFO L229 MonitoredProcess]: Starting monitored process 20 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2160eeb-bf7f-4ecc-b998-5d4a699c82ac/bin/uautomizer-ZXIjhQolGL/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-19 04:34:52,776 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2021-11-19 04:34:52,776 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2160eeb-bf7f-4ecc-b998-5d4a699c82ac/bin/uautomizer-ZXIjhQolGL/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (20)] Waiting until timeout for monitored process [2021-11-19 04:34:52,797 INFO L438 nArgumentSynthesizer]: Removed 2 redundant supporting invariants from a total of 2. [2021-11-19 04:34:52,797 INFO L513 LassoAnalysis]: Proved termination. [2021-11-19 04:34:52,797 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~i~1#1, ULTIMATE.start_main_~length2~0#1) = -1*ULTIMATE.start_main_~i~1#1 + 1*ULTIMATE.start_main_~length2~0#1 Supporting invariants [] [2021-11-19 04:34:52,842 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2160eeb-bf7f-4ecc-b998-5d4a699c82ac/bin/uautomizer-ZXIjhQolGL/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (19)] Forceful destruction successful, exit code 0 [2021-11-19 04:34:52,858 INFO L297 tatePredicateManager]: 6 out of 6 supporting invariants were superfluous and have been removed [2021-11-19 04:34:52,872 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 04:34:52,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 04:34:52,889 INFO L263 TraceCheckSpWp]: Trace formula consists of 39 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-19 04:34:52,889 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 04:34:52,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 04:34:52,917 INFO L263 TraceCheckSpWp]: Trace formula consists of 10 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-19 04:34:52,918 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 04:34:52,946 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-19 04:34:52,947 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 [2021-11-19 04:34:52,947 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 20 states and 27 transitions. cyclomatic complexity: 10 Second operand has 3 states, 3 states have (on average 3.0) internal successors, (9), 3 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-19 04:34:52,973 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 20 states and 27 transitions. cyclomatic complexity: 10. Second operand has 3 states, 3 states have (on average 3.0) internal successors, (9), 3 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 31 states and 44 transitions. Complement of second has 6 states. [2021-11-19 04:34:52,974 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2021-11-19 04:34:52,976 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 3.0) internal successors, (9), 3 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-19 04:34:52,976 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 25 transitions. [2021-11-19 04:34:52,976 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 25 transitions. Stem has 7 letters. Loop has 2 letters. [2021-11-19 04:34:52,977 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-11-19 04:34:52,977 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 25 transitions. Stem has 9 letters. Loop has 2 letters. [2021-11-19 04:34:52,977 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-11-19 04:34:52,977 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 25 transitions. Stem has 7 letters. Loop has 4 letters. [2021-11-19 04:34:52,978 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-11-19 04:34:52,978 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 31 states and 44 transitions. [2021-11-19 04:34:52,980 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 8 [2021-11-19 04:34:52,981 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 31 states to 21 states and 29 transitions. [2021-11-19 04:34:52,981 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 16 [2021-11-19 04:34:52,981 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 17 [2021-11-19 04:34:52,981 INFO L73 IsDeterministic]: Start isDeterministic. Operand 21 states and 29 transitions. [2021-11-19 04:34:52,982 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-11-19 04:34:52,982 INFO L681 BuchiCegarLoop]: Abstraction has 21 states and 29 transitions. [2021-11-19 04:34:52,982 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21 states and 29 transitions. [2021-11-19 04:34:52,984 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21 to 21. [2021-11-19 04:34:52,984 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 21 states, 21 states have (on average 1.380952380952381) internal successors, (29), 20 states have internal predecessors, (29), 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) [2021-11-19 04:34:52,985 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 29 transitions. [2021-11-19 04:34:52,985 INFO L704 BuchiCegarLoop]: Abstraction has 21 states and 29 transitions. [2021-11-19 04:34:52,985 INFO L587 BuchiCegarLoop]: Abstraction has 21 states and 29 transitions. [2021-11-19 04:34:52,986 INFO L425 BuchiCegarLoop]: ======== Iteration 3============ [2021-11-19 04:34:52,986 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 21 states and 29 transitions. [2021-11-19 04:34:52,987 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 8 [2021-11-19 04:34:52,987 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-11-19 04:34:52,987 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-11-19 04:34:52,988 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-19 04:34:52,988 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1] [2021-11-19 04:34:52,988 INFO L791 eck$LassoCheckResult]: Stem: 290#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier; 291#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet10#1, main_#t~nondet11#1, main_#t~malloc12#1.base, main_#t~malloc12#1.offset, main_#t~malloc13#1.base, main_#t~malloc13#1.offset, main_#t~nondet15#1, main_#t~post14#1, main_~i~0#1, main_#t~nondet17#1, main_#t~post16#1, main_~i~1#1, main_#t~ret18#1, main_~length1~0#1, main_~length2~0#1, main_~nondetString1~0#1.base, main_~nondetString1~0#1.offset, main_~nondetString2~0#1.base, main_~nondetString2~0#1.offset;main_~length1~0#1 := main_#t~nondet10#1;havoc main_#t~nondet10#1;main_~length2~0#1 := main_#t~nondet11#1;havoc main_#t~nondet11#1; 299#L532 assume !(main_~length1~0#1 < 1); 292#L532-2 assume !(main_~length2~0#1 < 1); 288#L535-1 call main_#t~malloc12#1.base, main_#t~malloc12#1.offset := #Ultimate.allocOnStack(main_~length1~0#1);main_~nondetString1~0#1.base, main_~nondetString1~0#1.offset := main_#t~malloc12#1.base, main_#t~malloc12#1.offset;call main_#t~malloc13#1.base, main_#t~malloc13#1.offset := #Ultimate.allocOnStack(main_~length2~0#1);main_~nondetString2~0#1.base, main_~nondetString2~0#1.offset := main_#t~malloc13#1.base, main_#t~malloc13#1.offset;main_~i~0#1 := 0; 289#L541-3 assume !(main_~i~0#1 < main_~length1~0#1 - 1); 301#L541-4 main_~i~1#1 := 0; 295#L546-3 assume !(main_~i~1#1 < main_~length2~0#1 - 1); 296#L546-4 call write~int(0, main_~nondetString1~0#1.base, main_~nondetString1~0#1.offset + (main_~length1~0#1 - 1), 1);call write~int(0, main_~nondetString2~0#1.base, main_~nondetString2~0#1.offset + (main_~length2~0#1 - 1), 1);assume { :begin_inline_cstrspn } true;cstrspn_#in~s1#1.base, cstrspn_#in~s1#1.offset, cstrspn_#in~s2#1.base, cstrspn_#in~s2#1.offset := main_~nondetString1~0#1.base, main_~nondetString1~0#1.offset, main_~nondetString2~0#1.base, main_~nondetString2~0#1.offset;havoc cstrspn_#res#1;havoc cstrspn_#t~mem4#1, cstrspn_#t~post8#1.base, cstrspn_#t~post8#1.offset, cstrspn_#t~mem5#1, cstrspn_#t~mem6#1, cstrspn_#t~short7#1, cstrspn_#t~mem9#1, cstrspn_#t~post2#1.base, cstrspn_#t~post2#1.offset, cstrspn_#t~mem3#1, cstrspn_~s1#1.base, cstrspn_~s1#1.offset, cstrspn_~s2#1.base, cstrspn_~s2#1.offset, cstrspn_~sc1~0#1.base, cstrspn_~sc1~0#1.offset, cstrspn_~s~0#1.base, cstrspn_~s~0#1.offset, cstrspn_~c~0#1;cstrspn_~s1#1.base, cstrspn_~s1#1.offset := cstrspn_#in~s1#1.base, cstrspn_#in~s1#1.offset;cstrspn_~s2#1.base, cstrspn_~s2#1.offset := cstrspn_#in~s2#1.base, cstrspn_#in~s2#1.offset;havoc cstrspn_~sc1~0#1.base, cstrspn_~sc1~0#1.offset;havoc cstrspn_~s~0#1.base, cstrspn_~s~0#1.offset;havoc cstrspn_~c~0#1;cstrspn_~sc1~0#1.base, cstrspn_~sc1~0#1.offset := cstrspn_~s1#1.base, cstrspn_~s1#1.offset; 300#L519-4 [2021-11-19 04:34:52,989 INFO L793 eck$LassoCheckResult]: Loop: 300#L519-4 call cstrspn_#t~mem3#1 := read~int(cstrspn_~sc1~0#1.base, cstrspn_~sc1~0#1.offset, 1); 307#L519-1 assume !!(0 != cstrspn_#t~mem3#1);havoc cstrspn_#t~mem3#1;cstrspn_~s~0#1.base, cstrspn_~s~0#1.offset := cstrspn_~s2#1.base, cstrspn_~s2#1.offset;call cstrspn_#t~mem4#1 := read~int(cstrspn_~sc1~0#1.base, cstrspn_~sc1~0#1.offset, 1);cstrspn_~c~0#1 := cstrspn_#t~mem4#1;havoc cstrspn_#t~mem4#1; 303#L522-5 call cstrspn_#t~mem5#1 := read~int(cstrspn_~s~0#1.base, cstrspn_~s~0#1.offset, 1);cstrspn_#t~short7#1 := 0 != cstrspn_#t~mem5#1; 308#L522-1 assume cstrspn_#t~short7#1;call cstrspn_#t~mem6#1 := read~int(cstrspn_~s~0#1.base, cstrspn_~s~0#1.offset, 1);cstrspn_#t~short7#1 := cstrspn_#t~mem6#1 != (if cstrspn_~c~0#1 % 256 <= 127 then cstrspn_~c~0#1 % 256 else cstrspn_~c~0#1 % 256 - 256); 302#L522-3 assume !cstrspn_#t~short7#1;havoc cstrspn_#t~mem5#1;havoc cstrspn_#t~mem6#1;havoc cstrspn_#t~short7#1; 293#L522-6 call cstrspn_#t~mem9#1 := read~int(cstrspn_~s~0#1.base, cstrspn_~s~0#1.offset, 1); 294#L524 assume !(cstrspn_#t~mem9#1 != cstrspn_~c~0#1);havoc cstrspn_#t~mem9#1; 304#L519-3 cstrspn_#t~post2#1.base, cstrspn_#t~post2#1.offset := cstrspn_~sc1~0#1.base, cstrspn_~sc1~0#1.offset;cstrspn_~sc1~0#1.base, cstrspn_~sc1~0#1.offset := cstrspn_#t~post2#1.base, 1 + cstrspn_#t~post2#1.offset;havoc cstrspn_#t~post2#1.base, cstrspn_#t~post2#1.offset; 300#L519-4 [2021-11-19 04:34:52,989 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 04:34:52,989 INFO L85 PathProgramCache]: Analyzing trace with hash 1298384726, now seen corresponding path program 1 times [2021-11-19 04:34:52,990 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-19 04:34:52,990 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [210223562] [2021-11-19 04:34:52,990 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 04:34:52,991 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-19 04:34:53,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-19 04:34:53,010 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-19 04:34:53,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-19 04:34:53,050 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-11-19 04:34:53,050 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 04:34:53,051 INFO L85 PathProgramCache]: Analyzing trace with hash -904885455, now seen corresponding path program 1 times [2021-11-19 04:34:53,051 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-19 04:34:53,051 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1154048052] [2021-11-19 04:34:53,051 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 04:34:53,052 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-19 04:34:53,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-19 04:34:53,066 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-19 04:34:53,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-19 04:34:53,108 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-11-19 04:34:53,109 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 04:34:53,109 INFO L85 PathProgramCache]: Analyzing trace with hash 1903570310, now seen corresponding path program 1 times [2021-11-19 04:34:53,109 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-19 04:34:53,110 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [142921819] [2021-11-19 04:34:53,110 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 04:34:53,110 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-19 04:34:53,140 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2160eeb-bf7f-4ecc-b998-5d4a699c82ac/bin/uautomizer-ZXIjhQolGL/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (20)] Forceful destruction successful, exit code 0 [2021-11-19 04:34:53,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 04:34:53,446 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-19 04:34:53,447 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-19 04:34:53,447 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [142921819] [2021-11-19 04:34:53,448 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [142921819] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-19 04:34:53,448 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-19 04:34:53,448 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-11-19 04:34:53,449 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1378998230] [2021-11-19 04:34:53,449 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-19 04:34:53,800 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-19 04:34:53,803 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-11-19 04:34:53,804 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2021-11-19 04:34:53,806 INFO L87 Difference]: Start difference. First operand 21 states and 29 transitions. cyclomatic complexity: 11 Second operand has 10 states, 10 states have (on average 1.7) internal successors, (17), 10 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-19 04:34:54,199 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 04:34:54,199 INFO L93 Difference]: Finished difference Result 50 states and 66 transitions. [2021-11-19 04:34:54,200 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-11-19 04:34:54,201 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 50 states and 66 transitions. [2021-11-19 04:34:54,203 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 22 [2021-11-19 04:34:54,206 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 50 states to 48 states and 64 transitions. [2021-11-19 04:34:54,206 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 41 [2021-11-19 04:34:54,207 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 41 [2021-11-19 04:34:54,207 INFO L73 IsDeterministic]: Start isDeterministic. Operand 48 states and 64 transitions. [2021-11-19 04:34:54,207 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-11-19 04:34:54,207 INFO L681 BuchiCegarLoop]: Abstraction has 48 states and 64 transitions. [2021-11-19 04:34:54,208 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 48 states and 64 transitions. [2021-11-19 04:34:54,212 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 48 to 32. [2021-11-19 04:34:54,214 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 32 states, 32 states have (on average 1.375) internal successors, (44), 31 states have internal predecessors, (44), 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) [2021-11-19 04:34:54,214 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32 states to 32 states and 44 transitions. [2021-11-19 04:34:54,215 INFO L704 BuchiCegarLoop]: Abstraction has 32 states and 44 transitions. [2021-11-19 04:34:54,215 INFO L587 BuchiCegarLoop]: Abstraction has 32 states and 44 transitions. [2021-11-19 04:34:54,215 INFO L425 BuchiCegarLoop]: ======== Iteration 4============ [2021-11-19 04:34:54,215 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 32 states and 44 transitions. [2021-11-19 04:34:54,218 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 12 [2021-11-19 04:34:54,220 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-11-19 04:34:54,220 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-11-19 04:34:54,221 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-19 04:34:54,221 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2021-11-19 04:34:54,222 INFO L791 eck$LassoCheckResult]: Stem: 392#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier; 393#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet10#1, main_#t~nondet11#1, main_#t~malloc12#1.base, main_#t~malloc12#1.offset, main_#t~malloc13#1.base, main_#t~malloc13#1.offset, main_#t~nondet15#1, main_#t~post14#1, main_~i~0#1, main_#t~nondet17#1, main_#t~post16#1, main_~i~1#1, main_#t~ret18#1, main_~length1~0#1, main_~length2~0#1, main_~nondetString1~0#1.base, main_~nondetString1~0#1.offset, main_~nondetString2~0#1.base, main_~nondetString2~0#1.offset;main_~length1~0#1 := main_#t~nondet10#1;havoc main_#t~nondet10#1;main_~length2~0#1 := main_#t~nondet11#1;havoc main_#t~nondet11#1; 401#L532 assume !(main_~length1~0#1 < 1); 394#L532-2 assume !(main_~length2~0#1 < 1); 390#L535-1 call main_#t~malloc12#1.base, main_#t~malloc12#1.offset := #Ultimate.allocOnStack(main_~length1~0#1);main_~nondetString1~0#1.base, main_~nondetString1~0#1.offset := main_#t~malloc12#1.base, main_#t~malloc12#1.offset;call main_#t~malloc13#1.base, main_#t~malloc13#1.offset := #Ultimate.allocOnStack(main_~length2~0#1);main_~nondetString2~0#1.base, main_~nondetString2~0#1.offset := main_#t~malloc13#1.base, main_#t~malloc13#1.offset;main_~i~0#1 := 0; 391#L541-3 assume !(main_~i~0#1 < main_~length1~0#1 - 1); 402#L541-4 main_~i~1#1 := 0; 397#L546-3 assume !(main_~i~1#1 < main_~length2~0#1 - 1); 398#L546-4 call write~int(0, main_~nondetString1~0#1.base, main_~nondetString1~0#1.offset + (main_~length1~0#1 - 1), 1);call write~int(0, main_~nondetString2~0#1.base, main_~nondetString2~0#1.offset + (main_~length2~0#1 - 1), 1);assume { :begin_inline_cstrspn } true;cstrspn_#in~s1#1.base, cstrspn_#in~s1#1.offset, cstrspn_#in~s2#1.base, cstrspn_#in~s2#1.offset := main_~nondetString1~0#1.base, main_~nondetString1~0#1.offset, main_~nondetString2~0#1.base, main_~nondetString2~0#1.offset;havoc cstrspn_#res#1;havoc cstrspn_#t~mem4#1, cstrspn_#t~post8#1.base, cstrspn_#t~post8#1.offset, cstrspn_#t~mem5#1, cstrspn_#t~mem6#1, cstrspn_#t~short7#1, cstrspn_#t~mem9#1, cstrspn_#t~post2#1.base, cstrspn_#t~post2#1.offset, cstrspn_#t~mem3#1, cstrspn_~s1#1.base, cstrspn_~s1#1.offset, cstrspn_~s2#1.base, cstrspn_~s2#1.offset, cstrspn_~sc1~0#1.base, cstrspn_~sc1~0#1.offset, cstrspn_~s~0#1.base, cstrspn_~s~0#1.offset, cstrspn_~c~0#1;cstrspn_~s1#1.base, cstrspn_~s1#1.offset := cstrspn_#in~s1#1.base, cstrspn_#in~s1#1.offset;cstrspn_~s2#1.base, cstrspn_~s2#1.offset := cstrspn_#in~s2#1.base, cstrspn_#in~s2#1.offset;havoc cstrspn_~sc1~0#1.base, cstrspn_~sc1~0#1.offset;havoc cstrspn_~s~0#1.base, cstrspn_~s~0#1.offset;havoc cstrspn_~c~0#1;cstrspn_~sc1~0#1.base, cstrspn_~sc1~0#1.offset := cstrspn_~s1#1.base, cstrspn_~s1#1.offset; 420#L519-4 call cstrspn_#t~mem3#1 := read~int(cstrspn_~sc1~0#1.base, cstrspn_~sc1~0#1.offset, 1); 419#L519-1 assume !!(0 != cstrspn_#t~mem3#1);havoc cstrspn_#t~mem3#1;cstrspn_~s~0#1.base, cstrspn_~s~0#1.offset := cstrspn_~s2#1.base, cstrspn_~s2#1.offset;call cstrspn_#t~mem4#1 := read~int(cstrspn_~sc1~0#1.base, cstrspn_~sc1~0#1.offset, 1);cstrspn_~c~0#1 := cstrspn_#t~mem4#1;havoc cstrspn_#t~mem4#1; 406#L522-5 [2021-11-19 04:34:54,222 INFO L793 eck$LassoCheckResult]: Loop: 406#L522-5 call cstrspn_#t~mem5#1 := read~int(cstrspn_~s~0#1.base, cstrspn_~s~0#1.offset, 1);cstrspn_#t~short7#1 := 0 != cstrspn_#t~mem5#1; 417#L522-1 assume !cstrspn_#t~short7#1; 418#L522-3 assume !!cstrspn_#t~short7#1;havoc cstrspn_#t~mem5#1;havoc cstrspn_#t~mem6#1;havoc cstrspn_#t~short7#1;cstrspn_#t~post8#1.base, cstrspn_#t~post8#1.offset := cstrspn_~s~0#1.base, cstrspn_~s~0#1.offset;cstrspn_~s~0#1.base, cstrspn_~s~0#1.offset := cstrspn_#t~post8#1.base, 1 + cstrspn_#t~post8#1.offset;havoc cstrspn_#t~post8#1.base, cstrspn_#t~post8#1.offset; 406#L522-5 [2021-11-19 04:34:54,222 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 04:34:54,223 INFO L85 PathProgramCache]: Analyzing trace with hash -2087759941, now seen corresponding path program 1 times [2021-11-19 04:34:54,223 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-19 04:34:54,223 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1626254065] [2021-11-19 04:34:54,223 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 04:34:54,224 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-19 04:34:54,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 04:34:54,468 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-19 04:34:54,468 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-19 04:34:54,469 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1626254065] [2021-11-19 04:34:54,469 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1626254065] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-19 04:34:54,469 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-19 04:34:54,469 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-11-19 04:34:54,470 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [178230154] [2021-11-19 04:34:54,470 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-19 04:34:54,470 INFO L796 eck$LassoCheckResult]: stem already infeasible [2021-11-19 04:34:54,471 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 04:34:54,471 INFO L85 PathProgramCache]: Analyzing trace with hash 86558, now seen corresponding path program 1 times [2021-11-19 04:34:54,471 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-19 04:34:54,472 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2132413443] [2021-11-19 04:34:54,472 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 04:34:54,472 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-19 04:34:54,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 04:34:54,487 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-19 04:34:54,487 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-19 04:34:54,487 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2132413443] [2021-11-19 04:34:54,488 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2132413443] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-19 04:34:54,488 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-19 04:34:54,488 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-19 04:34:54,489 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1619762592] [2021-11-19 04:34:54,489 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-19 04:34:54,489 INFO L808 eck$LassoCheckResult]: loop already infeasible [2021-11-19 04:34:54,489 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-19 04:34:54,490 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-19 04:34:54,490 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-19 04:34:54,491 INFO L87 Difference]: Start difference. First operand 32 states and 44 transitions. cyclomatic complexity: 17 Second operand has 3 states, 2 states have (on average 1.5) internal successors, (3), 3 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-19 04:34:54,503 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 04:34:54,503 INFO L93 Difference]: Finished difference Result 33 states and 44 transitions. [2021-11-19 04:34:54,504 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-19 04:34:54,505 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 33 states and 44 transitions. [2021-11-19 04:34:54,506 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 12 [2021-11-19 04:34:54,507 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 33 states to 33 states and 44 transitions. [2021-11-19 04:34:54,507 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 27 [2021-11-19 04:34:54,508 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 27 [2021-11-19 04:34:54,508 INFO L73 IsDeterministic]: Start isDeterministic. Operand 33 states and 44 transitions. [2021-11-19 04:34:54,508 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-11-19 04:34:54,509 INFO L681 BuchiCegarLoop]: Abstraction has 33 states and 44 transitions. [2021-11-19 04:34:54,509 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33 states and 44 transitions. [2021-11-19 04:34:54,511 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33 to 32. [2021-11-19 04:34:54,512 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 32 states, 32 states have (on average 1.34375) internal successors, (43), 31 states have internal predecessors, (43), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-19 04:34:54,513 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32 states to 32 states and 43 transitions. [2021-11-19 04:34:54,513 INFO L704 BuchiCegarLoop]: Abstraction has 32 states and 43 transitions. [2021-11-19 04:34:54,513 INFO L587 BuchiCegarLoop]: Abstraction has 32 states and 43 transitions. [2021-11-19 04:34:54,513 INFO L425 BuchiCegarLoop]: ======== Iteration 5============ [2021-11-19 04:34:54,514 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 32 states and 43 transitions. [2021-11-19 04:34:54,514 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 12 [2021-11-19 04:34:54,515 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-11-19 04:34:54,515 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-11-19 04:34:54,515 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-19 04:34:54,516 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2021-11-19 04:34:54,516 INFO L791 eck$LassoCheckResult]: Stem: 468#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier; 469#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet10#1, main_#t~nondet11#1, main_#t~malloc12#1.base, main_#t~malloc12#1.offset, main_#t~malloc13#1.base, main_#t~malloc13#1.offset, main_#t~nondet15#1, main_#t~post14#1, main_~i~0#1, main_#t~nondet17#1, main_#t~post16#1, main_~i~1#1, main_#t~ret18#1, main_~length1~0#1, main_~length2~0#1, main_~nondetString1~0#1.base, main_~nondetString1~0#1.offset, main_~nondetString2~0#1.base, main_~nondetString2~0#1.offset;main_~length1~0#1 := main_#t~nondet10#1;havoc main_#t~nondet10#1;main_~length2~0#1 := main_#t~nondet11#1;havoc main_#t~nondet11#1; 477#L532 assume !(main_~length1~0#1 < 1); 470#L532-2 assume !(main_~length2~0#1 < 1); 466#L535-1 call main_#t~malloc12#1.base, main_#t~malloc12#1.offset := #Ultimate.allocOnStack(main_~length1~0#1);main_~nondetString1~0#1.base, main_~nondetString1~0#1.offset := main_#t~malloc12#1.base, main_#t~malloc12#1.offset;call main_#t~malloc13#1.base, main_#t~malloc13#1.offset := #Ultimate.allocOnStack(main_~length2~0#1);main_~nondetString2~0#1.base, main_~nondetString2~0#1.offset := main_#t~malloc13#1.base, main_#t~malloc13#1.offset;main_~i~0#1 := 0; 467#L541-3 assume !(main_~i~0#1 < main_~length1~0#1 - 1); 479#L541-4 main_~i~1#1 := 0; 480#L546-3 assume !(main_~i~1#1 < main_~length2~0#1 - 1); 495#L546-4 call write~int(0, main_~nondetString1~0#1.base, main_~nondetString1~0#1.offset + (main_~length1~0#1 - 1), 1);call write~int(0, main_~nondetString2~0#1.base, main_~nondetString2~0#1.offset + (main_~length2~0#1 - 1), 1);assume { :begin_inline_cstrspn } true;cstrspn_#in~s1#1.base, cstrspn_#in~s1#1.offset, cstrspn_#in~s2#1.base, cstrspn_#in~s2#1.offset := main_~nondetString1~0#1.base, main_~nondetString1~0#1.offset, main_~nondetString2~0#1.base, main_~nondetString2~0#1.offset;havoc cstrspn_#res#1;havoc cstrspn_#t~mem4#1, cstrspn_#t~post8#1.base, cstrspn_#t~post8#1.offset, cstrspn_#t~mem5#1, cstrspn_#t~mem6#1, cstrspn_#t~short7#1, cstrspn_#t~mem9#1, cstrspn_#t~post2#1.base, cstrspn_#t~post2#1.offset, cstrspn_#t~mem3#1, cstrspn_~s1#1.base, cstrspn_~s1#1.offset, cstrspn_~s2#1.base, cstrspn_~s2#1.offset, cstrspn_~sc1~0#1.base, cstrspn_~sc1~0#1.offset, cstrspn_~s~0#1.base, cstrspn_~s~0#1.offset, cstrspn_~c~0#1;cstrspn_~s1#1.base, cstrspn_~s1#1.offset := cstrspn_#in~s1#1.base, cstrspn_#in~s1#1.offset;cstrspn_~s2#1.base, cstrspn_~s2#1.offset := cstrspn_#in~s2#1.base, cstrspn_#in~s2#1.offset;havoc cstrspn_~sc1~0#1.base, cstrspn_~sc1~0#1.offset;havoc cstrspn_~s~0#1.base, cstrspn_~s~0#1.offset;havoc cstrspn_~c~0#1;cstrspn_~sc1~0#1.base, cstrspn_~sc1~0#1.offset := cstrspn_~s1#1.base, cstrspn_~s1#1.offset; 494#L519-4 call cstrspn_#t~mem3#1 := read~int(cstrspn_~sc1~0#1.base, cstrspn_~sc1~0#1.offset, 1); 493#L519-1 assume !!(0 != cstrspn_#t~mem3#1);havoc cstrspn_#t~mem3#1;cstrspn_~s~0#1.base, cstrspn_~s~0#1.offset := cstrspn_~s2#1.base, cstrspn_~s2#1.offset;call cstrspn_#t~mem4#1 := read~int(cstrspn_~sc1~0#1.base, cstrspn_~sc1~0#1.offset, 1);cstrspn_~c~0#1 := cstrspn_#t~mem4#1;havoc cstrspn_#t~mem4#1; 482#L522-5 [2021-11-19 04:34:54,516 INFO L793 eck$LassoCheckResult]: Loop: 482#L522-5 call cstrspn_#t~mem5#1 := read~int(cstrspn_~s~0#1.base, cstrspn_~s~0#1.offset, 1);cstrspn_#t~short7#1 := 0 != cstrspn_#t~mem5#1; 492#L522-1 assume cstrspn_#t~short7#1;call cstrspn_#t~mem6#1 := read~int(cstrspn_~s~0#1.base, cstrspn_~s~0#1.offset, 1);cstrspn_#t~short7#1 := cstrspn_#t~mem6#1 != (if cstrspn_~c~0#1 % 256 <= 127 then cstrspn_~c~0#1 % 256 else cstrspn_~c~0#1 % 256 - 256); 481#L522-3 assume !!cstrspn_#t~short7#1;havoc cstrspn_#t~mem5#1;havoc cstrspn_#t~mem6#1;havoc cstrspn_#t~short7#1;cstrspn_#t~post8#1.base, cstrspn_#t~post8#1.offset := cstrspn_~s~0#1.base, cstrspn_~s~0#1.offset;cstrspn_~s~0#1.base, cstrspn_~s~0#1.offset := cstrspn_#t~post8#1.base, 1 + cstrspn_#t~post8#1.offset;havoc cstrspn_#t~post8#1.base, cstrspn_#t~post8#1.offset; 482#L522-5 [2021-11-19 04:34:54,517 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 04:34:54,517 INFO L85 PathProgramCache]: Analyzing trace with hash -2087759941, now seen corresponding path program 2 times [2021-11-19 04:34:54,517 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-19 04:34:54,518 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [766514004] [2021-11-19 04:34:54,518 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 04:34:54,518 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-19 04:34:54,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 04:34:54,669 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-19 04:34:54,670 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-19 04:34:54,670 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [766514004] [2021-11-19 04:34:54,670 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [766514004] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-19 04:34:54,670 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-19 04:34:54,670 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-11-19 04:34:54,670 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [571069523] [2021-11-19 04:34:54,671 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-19 04:34:54,671 INFO L796 eck$LassoCheckResult]: stem already infeasible [2021-11-19 04:34:54,671 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 04:34:54,671 INFO L85 PathProgramCache]: Analyzing trace with hash 86496, now seen corresponding path program 1 times [2021-11-19 04:34:54,672 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-19 04:34:54,672 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [43220600] [2021-11-19 04:34:54,672 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 04:34:54,672 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-19 04:34:54,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-19 04:34:54,678 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-19 04:34:54,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-19 04:34:54,686 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-11-19 04:34:54,845 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-19 04:34:54,845 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-11-19 04:34:54,846 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2021-11-19 04:34:54,846 INFO L87 Difference]: Start difference. First operand 32 states and 43 transitions. cyclomatic complexity: 16 Second operand has 7 states, 6 states have (on average 1.8333333333333333) internal successors, (11), 7 states have internal predecessors, (11), 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) [2021-11-19 04:34:54,943 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 04:34:54,944 INFO L93 Difference]: Finished difference Result 30 states and 39 transitions. [2021-11-19 04:34:54,944 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-19 04:34:54,945 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 30 states and 39 transitions. [2021-11-19 04:34:54,946 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 9 [2021-11-19 04:34:54,947 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 30 states to 23 states and 30 transitions. [2021-11-19 04:34:54,947 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 18 [2021-11-19 04:34:54,947 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 18 [2021-11-19 04:34:54,947 INFO L73 IsDeterministic]: Start isDeterministic. Operand 23 states and 30 transitions. [2021-11-19 04:34:54,948 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-11-19 04:34:54,948 INFO L681 BuchiCegarLoop]: Abstraction has 23 states and 30 transitions. [2021-11-19 04:34:54,948 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23 states and 30 transitions. [2021-11-19 04:34:54,950 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23 to 22. [2021-11-19 04:34:54,950 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 22 states, 22 states have (on average 1.3181818181818181) internal successors, (29), 21 states have internal predecessors, (29), 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) [2021-11-19 04:34:54,951 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 22 states and 29 transitions. [2021-11-19 04:34:54,951 INFO L704 BuchiCegarLoop]: Abstraction has 22 states and 29 transitions. [2021-11-19 04:34:54,951 INFO L587 BuchiCegarLoop]: Abstraction has 22 states and 29 transitions. [2021-11-19 04:34:54,952 INFO L425 BuchiCegarLoop]: ======== Iteration 6============ [2021-11-19 04:34:54,952 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 22 states and 29 transitions. [2021-11-19 04:34:54,952 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 9 [2021-11-19 04:34:54,952 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-11-19 04:34:54,953 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-11-19 04:34:54,953 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-19 04:34:54,953 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1] [2021-11-19 04:34:54,954 INFO L791 eck$LassoCheckResult]: Stem: 544#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier; 545#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet10#1, main_#t~nondet11#1, main_#t~malloc12#1.base, main_#t~malloc12#1.offset, main_#t~malloc13#1.base, main_#t~malloc13#1.offset, main_#t~nondet15#1, main_#t~post14#1, main_~i~0#1, main_#t~nondet17#1, main_#t~post16#1, main_~i~1#1, main_#t~ret18#1, main_~length1~0#1, main_~length2~0#1, main_~nondetString1~0#1.base, main_~nondetString1~0#1.offset, main_~nondetString2~0#1.base, main_~nondetString2~0#1.offset;main_~length1~0#1 := main_#t~nondet10#1;havoc main_#t~nondet10#1;main_~length2~0#1 := main_#t~nondet11#1;havoc main_#t~nondet11#1; 553#L532 assume !(main_~length1~0#1 < 1); 546#L532-2 assume !(main_~length2~0#1 < 1); 542#L535-1 call main_#t~malloc12#1.base, main_#t~malloc12#1.offset := #Ultimate.allocOnStack(main_~length1~0#1);main_~nondetString1~0#1.base, main_~nondetString1~0#1.offset := main_#t~malloc12#1.base, main_#t~malloc12#1.offset;call main_#t~malloc13#1.base, main_#t~malloc13#1.offset := #Ultimate.allocOnStack(main_~length2~0#1);main_~nondetString2~0#1.base, main_~nondetString2~0#1.offset := main_#t~malloc13#1.base, main_#t~malloc13#1.offset;main_~i~0#1 := 0; 543#L541-3 assume !!(main_~i~0#1 < main_~length1~0#1 - 1);call write~int(main_#t~nondet15#1, main_~nondetString1~0#1.base, main_~nondetString1~0#1.offset + main_~i~0#1, 1);havoc main_#t~nondet15#1; 558#L541-2 main_#t~post14#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post14#1;havoc main_#t~post14#1; 559#L541-3 assume !(main_~i~0#1 < main_~length1~0#1 - 1); 554#L541-4 main_~i~1#1 := 0; 549#L546-3 assume !(main_~i~1#1 < main_~length2~0#1 - 1); 550#L546-4 call write~int(0, main_~nondetString1~0#1.base, main_~nondetString1~0#1.offset + (main_~length1~0#1 - 1), 1);call write~int(0, main_~nondetString2~0#1.base, main_~nondetString2~0#1.offset + (main_~length2~0#1 - 1), 1);assume { :begin_inline_cstrspn } true;cstrspn_#in~s1#1.base, cstrspn_#in~s1#1.offset, cstrspn_#in~s2#1.base, cstrspn_#in~s2#1.offset := main_~nondetString1~0#1.base, main_~nondetString1~0#1.offset, main_~nondetString2~0#1.base, main_~nondetString2~0#1.offset;havoc cstrspn_#res#1;havoc cstrspn_#t~mem4#1, cstrspn_#t~post8#1.base, cstrspn_#t~post8#1.offset, cstrspn_#t~mem5#1, cstrspn_#t~mem6#1, cstrspn_#t~short7#1, cstrspn_#t~mem9#1, cstrspn_#t~post2#1.base, cstrspn_#t~post2#1.offset, cstrspn_#t~mem3#1, cstrspn_~s1#1.base, cstrspn_~s1#1.offset, cstrspn_~s2#1.base, cstrspn_~s2#1.offset, cstrspn_~sc1~0#1.base, cstrspn_~sc1~0#1.offset, cstrspn_~s~0#1.base, cstrspn_~s~0#1.offset, cstrspn_~c~0#1;cstrspn_~s1#1.base, cstrspn_~s1#1.offset := cstrspn_#in~s1#1.base, cstrspn_#in~s1#1.offset;cstrspn_~s2#1.base, cstrspn_~s2#1.offset := cstrspn_#in~s2#1.base, cstrspn_#in~s2#1.offset;havoc cstrspn_~sc1~0#1.base, cstrspn_~sc1~0#1.offset;havoc cstrspn_~s~0#1.base, cstrspn_~s~0#1.offset;havoc cstrspn_~c~0#1;cstrspn_~sc1~0#1.base, cstrspn_~sc1~0#1.offset := cstrspn_~s1#1.base, cstrspn_~s1#1.offset; 555#L519-4 [2021-11-19 04:34:54,954 INFO L793 eck$LassoCheckResult]: Loop: 555#L519-4 call cstrspn_#t~mem3#1 := read~int(cstrspn_~sc1~0#1.base, cstrspn_~sc1~0#1.offset, 1); 560#L519-1 assume !!(0 != cstrspn_#t~mem3#1);havoc cstrspn_#t~mem3#1;cstrspn_~s~0#1.base, cstrspn_~s~0#1.offset := cstrspn_~s2#1.base, cstrspn_~s2#1.offset;call cstrspn_#t~mem4#1 := read~int(cstrspn_~sc1~0#1.base, cstrspn_~sc1~0#1.offset, 1);cstrspn_~c~0#1 := cstrspn_#t~mem4#1;havoc cstrspn_#t~mem4#1; 563#L522-5 call cstrspn_#t~mem5#1 := read~int(cstrspn_~s~0#1.base, cstrspn_~s~0#1.offset, 1);cstrspn_#t~short7#1 := 0 != cstrspn_#t~mem5#1; 561#L522-1 assume cstrspn_#t~short7#1;call cstrspn_#t~mem6#1 := read~int(cstrspn_~s~0#1.base, cstrspn_~s~0#1.offset, 1);cstrspn_#t~short7#1 := cstrspn_#t~mem6#1 != (if cstrspn_~c~0#1 % 256 <= 127 then cstrspn_~c~0#1 % 256 else cstrspn_~c~0#1 % 256 - 256); 562#L522-3 assume !cstrspn_#t~short7#1;havoc cstrspn_#t~mem5#1;havoc cstrspn_#t~mem6#1;havoc cstrspn_#t~short7#1; 547#L522-6 call cstrspn_#t~mem9#1 := read~int(cstrspn_~s~0#1.base, cstrspn_~s~0#1.offset, 1); 548#L524 assume !(cstrspn_#t~mem9#1 != cstrspn_~c~0#1);havoc cstrspn_#t~mem9#1; 557#L519-3 cstrspn_#t~post2#1.base, cstrspn_#t~post2#1.offset := cstrspn_~sc1~0#1.base, cstrspn_~sc1~0#1.offset;cstrspn_~sc1~0#1.base, cstrspn_~sc1~0#1.offset := cstrspn_#t~post2#1.base, 1 + cstrspn_#t~post2#1.offset;havoc cstrspn_#t~post2#1.base, cstrspn_#t~post2#1.offset; 555#L519-4 [2021-11-19 04:34:54,954 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 04:34:54,955 INFO L85 PathProgramCache]: Analyzing trace with hash -2034626632, now seen corresponding path program 1 times [2021-11-19 04:34:54,955 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-19 04:34:54,955 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1048692819] [2021-11-19 04:34:54,955 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 04:34:54,956 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-19 04:34:54,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-19 04:34:54,969 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-19 04:34:54,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-19 04:34:54,984 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-11-19 04:34:54,985 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 04:34:54,985 INFO L85 PathProgramCache]: Analyzing trace with hash -904885455, now seen corresponding path program 2 times [2021-11-19 04:34:54,986 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-19 04:34:54,986 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1094875876] [2021-11-19 04:34:54,986 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 04:34:54,987 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-19 04:34:54,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-19 04:34:54,994 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-19 04:34:55,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-19 04:34:55,004 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-11-19 04:34:55,005 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 04:34:55,005 INFO L85 PathProgramCache]: Analyzing trace with hash -164170776, now seen corresponding path program 1 times [2021-11-19 04:34:55,005 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-19 04:34:55,006 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1243722621] [2021-11-19 04:34:55,006 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 04:34:55,006 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-19 04:34:55,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 04:34:55,215 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-11-19 04:34:55,216 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-19 04:34:55,218 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1243722621] [2021-11-19 04:34:55,222 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1243722621] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-19 04:34:55,223 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-19 04:34:55,223 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-11-19 04:34:55,223 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [760766155] [2021-11-19 04:34:55,224 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-19 04:34:55,519 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-19 04:34:55,520 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-11-19 04:34:55,520 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2021-11-19 04:34:55,520 INFO L87 Difference]: Start difference. First operand 22 states and 29 transitions. cyclomatic complexity: 10 Second operand has 10 states, 10 states have (on average 1.9) internal successors, (19), 10 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-19 04:34:55,727 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 04:34:55,727 INFO L93 Difference]: Finished difference Result 39 states and 49 transitions. [2021-11-19 04:34:55,728 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-11-19 04:34:55,729 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 39 states and 49 transitions. [2021-11-19 04:34:55,729 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 21 [2021-11-19 04:34:55,730 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 39 states to 36 states and 45 transitions. [2021-11-19 04:34:55,730 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 31 [2021-11-19 04:34:55,731 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 31 [2021-11-19 04:34:55,731 INFO L73 IsDeterministic]: Start isDeterministic. Operand 36 states and 45 transitions. [2021-11-19 04:34:55,731 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-11-19 04:34:55,731 INFO L681 BuchiCegarLoop]: Abstraction has 36 states and 45 transitions. [2021-11-19 04:34:55,731 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36 states and 45 transitions. [2021-11-19 04:34:55,734 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36 to 35. [2021-11-19 04:34:55,735 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 35 states, 35 states have (on average 1.2571428571428571) internal successors, (44), 34 states have internal predecessors, (44), 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) [2021-11-19 04:34:55,736 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35 states to 35 states and 44 transitions. [2021-11-19 04:34:55,736 INFO L704 BuchiCegarLoop]: Abstraction has 35 states and 44 transitions. [2021-11-19 04:34:55,736 INFO L587 BuchiCegarLoop]: Abstraction has 35 states and 44 transitions. [2021-11-19 04:34:55,736 INFO L425 BuchiCegarLoop]: ======== Iteration 7============ [2021-11-19 04:34:55,736 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 35 states and 44 transitions. [2021-11-19 04:34:55,737 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 21 [2021-11-19 04:34:55,737 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-11-19 04:34:55,738 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-11-19 04:34:55,738 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-19 04:34:55,738 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-19 04:34:55,739 INFO L791 eck$LassoCheckResult]: Stem: 630#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier; 631#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet10#1, main_#t~nondet11#1, main_#t~malloc12#1.base, main_#t~malloc12#1.offset, main_#t~malloc13#1.base, main_#t~malloc13#1.offset, main_#t~nondet15#1, main_#t~post14#1, main_~i~0#1, main_#t~nondet17#1, main_#t~post16#1, main_~i~1#1, main_#t~ret18#1, main_~length1~0#1, main_~length2~0#1, main_~nondetString1~0#1.base, main_~nondetString1~0#1.offset, main_~nondetString2~0#1.base, main_~nondetString2~0#1.offset;main_~length1~0#1 := main_#t~nondet10#1;havoc main_#t~nondet10#1;main_~length2~0#1 := main_#t~nondet11#1;havoc main_#t~nondet11#1; 640#L532 assume !(main_~length1~0#1 < 1); 632#L532-2 assume !(main_~length2~0#1 < 1); 628#L535-1 call main_#t~malloc12#1.base, main_#t~malloc12#1.offset := #Ultimate.allocOnStack(main_~length1~0#1);main_~nondetString1~0#1.base, main_~nondetString1~0#1.offset := main_#t~malloc12#1.base, main_#t~malloc12#1.offset;call main_#t~malloc13#1.base, main_#t~malloc13#1.offset := #Ultimate.allocOnStack(main_~length2~0#1);main_~nondetString2~0#1.base, main_~nondetString2~0#1.offset := main_#t~malloc13#1.base, main_#t~malloc13#1.offset;main_~i~0#1 := 0; 629#L541-3 assume !!(main_~i~0#1 < main_~length1~0#1 - 1);call write~int(main_#t~nondet15#1, main_~nondetString1~0#1.base, main_~nondetString1~0#1.offset + main_~i~0#1, 1);havoc main_#t~nondet15#1; 646#L541-2 main_#t~post14#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post14#1;havoc main_#t~post14#1; 647#L541-3 assume !(main_~i~0#1 < main_~length1~0#1 - 1); 641#L541-4 main_~i~1#1 := 0; 635#L546-3 assume !(main_~i~1#1 < main_~length2~0#1 - 1); 636#L546-4 call write~int(0, main_~nondetString1~0#1.base, main_~nondetString1~0#1.offset + (main_~length1~0#1 - 1), 1);call write~int(0, main_~nondetString2~0#1.base, main_~nondetString2~0#1.offset + (main_~length2~0#1 - 1), 1);assume { :begin_inline_cstrspn } true;cstrspn_#in~s1#1.base, cstrspn_#in~s1#1.offset, cstrspn_#in~s2#1.base, cstrspn_#in~s2#1.offset := main_~nondetString1~0#1.base, main_~nondetString1~0#1.offset, main_~nondetString2~0#1.base, main_~nondetString2~0#1.offset;havoc cstrspn_#res#1;havoc cstrspn_#t~mem4#1, cstrspn_#t~post8#1.base, cstrspn_#t~post8#1.offset, cstrspn_#t~mem5#1, cstrspn_#t~mem6#1, cstrspn_#t~short7#1, cstrspn_#t~mem9#1, cstrspn_#t~post2#1.base, cstrspn_#t~post2#1.offset, cstrspn_#t~mem3#1, cstrspn_~s1#1.base, cstrspn_~s1#1.offset, cstrspn_~s2#1.base, cstrspn_~s2#1.offset, cstrspn_~sc1~0#1.base, cstrspn_~sc1~0#1.offset, cstrspn_~s~0#1.base, cstrspn_~s~0#1.offset, cstrspn_~c~0#1;cstrspn_~s1#1.base, cstrspn_~s1#1.offset := cstrspn_#in~s1#1.base, cstrspn_#in~s1#1.offset;cstrspn_~s2#1.base, cstrspn_~s2#1.offset := cstrspn_#in~s2#1.base, cstrspn_#in~s2#1.offset;havoc cstrspn_~sc1~0#1.base, cstrspn_~sc1~0#1.offset;havoc cstrspn_~s~0#1.base, cstrspn_~s~0#1.offset;havoc cstrspn_~c~0#1;cstrspn_~sc1~0#1.base, cstrspn_~sc1~0#1.offset := cstrspn_~s1#1.base, cstrspn_~s1#1.offset; 648#L519-4 [2021-11-19 04:34:55,739 INFO L793 eck$LassoCheckResult]: Loop: 648#L519-4 call cstrspn_#t~mem3#1 := read~int(cstrspn_~sc1~0#1.base, cstrspn_~sc1~0#1.offset, 1); 649#L519-1 assume !!(0 != cstrspn_#t~mem3#1);havoc cstrspn_#t~mem3#1;cstrspn_~s~0#1.base, cstrspn_~s~0#1.offset := cstrspn_~s2#1.base, cstrspn_~s2#1.offset;call cstrspn_#t~mem4#1 := read~int(cstrspn_~sc1~0#1.base, cstrspn_~sc1~0#1.offset, 1);cstrspn_~c~0#1 := cstrspn_#t~mem4#1;havoc cstrspn_#t~mem4#1; 656#L522-5 call cstrspn_#t~mem5#1 := read~int(cstrspn_~s~0#1.base, cstrspn_~s~0#1.offset, 1);cstrspn_#t~short7#1 := 0 != cstrspn_#t~mem5#1; 655#L522-1 assume cstrspn_#t~short7#1;call cstrspn_#t~mem6#1 := read~int(cstrspn_~s~0#1.base, cstrspn_~s~0#1.offset, 1);cstrspn_#t~short7#1 := cstrspn_#t~mem6#1 != (if cstrspn_~c~0#1 % 256 <= 127 then cstrspn_~c~0#1 % 256 else cstrspn_~c~0#1 % 256 - 256); 643#L522-3 assume !!cstrspn_#t~short7#1;havoc cstrspn_#t~mem5#1;havoc cstrspn_#t~mem6#1;havoc cstrspn_#t~short7#1;cstrspn_#t~post8#1.base, cstrspn_#t~post8#1.offset := cstrspn_~s~0#1.base, cstrspn_~s~0#1.offset;cstrspn_~s~0#1.base, cstrspn_~s~0#1.offset := cstrspn_#t~post8#1.base, 1 + cstrspn_#t~post8#1.offset;havoc cstrspn_#t~post8#1.base, cstrspn_#t~post8#1.offset; 644#L522-5 call cstrspn_#t~mem5#1 := read~int(cstrspn_~s~0#1.base, cstrspn_~s~0#1.offset, 1);cstrspn_#t~short7#1 := 0 != cstrspn_#t~mem5#1; 661#L522-1 assume !cstrspn_#t~short7#1; 660#L522-3 assume !cstrspn_#t~short7#1;havoc cstrspn_#t~mem5#1;havoc cstrspn_#t~mem6#1;havoc cstrspn_#t~short7#1; 659#L522-6 call cstrspn_#t~mem9#1 := read~int(cstrspn_~s~0#1.base, cstrspn_~s~0#1.offset, 1); 658#L524 assume !(cstrspn_#t~mem9#1 != cstrspn_~c~0#1);havoc cstrspn_#t~mem9#1; 657#L519-3 cstrspn_#t~post2#1.base, cstrspn_#t~post2#1.offset := cstrspn_~sc1~0#1.base, cstrspn_~sc1~0#1.offset;cstrspn_~sc1~0#1.base, cstrspn_~sc1~0#1.offset := cstrspn_#t~post2#1.base, 1 + cstrspn_#t~post2#1.offset;havoc cstrspn_#t~post2#1.base, cstrspn_#t~post2#1.offset; 648#L519-4 [2021-11-19 04:34:55,740 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 04:34:55,740 INFO L85 PathProgramCache]: Analyzing trace with hash -2034626632, now seen corresponding path program 2 times [2021-11-19 04:34:55,740 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-19 04:34:55,740 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [666193377] [2021-11-19 04:34:55,740 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 04:34:55,741 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-19 04:34:55,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-19 04:34:55,752 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-19 04:34:55,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-19 04:34:55,769 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-11-19 04:34:55,770 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 04:34:55,770 INFO L85 PathProgramCache]: Analyzing trace with hash -896438552, now seen corresponding path program 1 times [2021-11-19 04:34:55,770 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-19 04:34:55,771 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1976533726] [2021-11-19 04:34:55,771 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 04:34:55,771 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-19 04:34:55,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 04:34:55,824 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-11-19 04:34:55,825 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-19 04:34:55,825 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1976533726] [2021-11-19 04:34:55,825 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1976533726] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-19 04:34:55,826 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [26472943] [2021-11-19 04:34:55,826 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 04:34:55,826 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-19 04:34:55,826 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2160eeb-bf7f-4ecc-b998-5d4a699c82ac/bin/uautomizer-ZXIjhQolGL/z3 [2021-11-19 04:34:55,831 INFO L229 MonitoredProcess]: Starting monitored process 21 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2160eeb-bf7f-4ecc-b998-5d4a699c82ac/bin/uautomizer-ZXIjhQolGL/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-19 04:34:55,858 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2160eeb-bf7f-4ecc-b998-5d4a699c82ac/bin/uautomizer-ZXIjhQolGL/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Waiting until timeout for monitored process [2021-11-19 04:34:55,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 04:34:55,924 INFO L263 TraceCheckSpWp]: Trace formula consists of 60 conjuncts, 13 conjunts are in the unsatisfiable core [2021-11-19 04:34:55,925 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 04:34:56,286 INFO L354 Elim1Store]: treesize reduction 3, result has 75.0 percent of original size [2021-11-19 04:34:56,287 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 30 treesize of output 23 [2021-11-19 04:34:56,319 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-11-19 04:34:56,319 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-19 04:34:56,319 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [26472943] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-19 04:34:56,320 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-11-19 04:34:56,320 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [6] total 10 [2021-11-19 04:34:56,320 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [16045091] [2021-11-19 04:34:56,321 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-19 04:34:56,321 INFO L808 eck$LassoCheckResult]: loop already infeasible [2021-11-19 04:34:56,322 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-19 04:34:56,322 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-11-19 04:34:56,323 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=80, Unknown=0, NotChecked=0, Total=110 [2021-11-19 04:34:56,324 INFO L87 Difference]: Start difference. First operand 35 states and 44 transitions. cyclomatic complexity: 13 Second operand has 7 states, 7 states have (on average 1.5714285714285714) internal successors, (11), 6 states have internal predecessors, (11), 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) [2021-11-19 04:34:56,342 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 04:34:56,343 INFO L93 Difference]: Finished difference Result 39 states and 46 transitions. [2021-11-19 04:34:56,343 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-19 04:34:56,346 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 39 states and 46 transitions. [2021-11-19 04:34:56,348 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 19 [2021-11-19 04:34:56,352 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 39 states to 33 states and 40 transitions. [2021-11-19 04:34:56,352 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 29 [2021-11-19 04:34:56,353 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 29 [2021-11-19 04:34:56,353 INFO L73 IsDeterministic]: Start isDeterministic. Operand 33 states and 40 transitions. [2021-11-19 04:34:56,354 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-11-19 04:34:56,354 INFO L681 BuchiCegarLoop]: Abstraction has 33 states and 40 transitions. [2021-11-19 04:34:56,354 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33 states and 40 transitions. [2021-11-19 04:34:56,365 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33 to 33. [2021-11-19 04:34:56,366 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 33 states, 33 states have (on average 1.2121212121212122) internal successors, (40), 32 states have internal predecessors, (40), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-19 04:34:56,367 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33 states to 33 states and 40 transitions. [2021-11-19 04:34:56,367 INFO L704 BuchiCegarLoop]: Abstraction has 33 states and 40 transitions. [2021-11-19 04:34:56,367 INFO L587 BuchiCegarLoop]: Abstraction has 33 states and 40 transitions. [2021-11-19 04:34:56,367 INFO L425 BuchiCegarLoop]: ======== Iteration 8============ [2021-11-19 04:34:56,367 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 33 states and 40 transitions. [2021-11-19 04:34:56,369 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 19 [2021-11-19 04:34:56,369 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-11-19 04:34:56,369 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-11-19 04:34:56,373 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-19 04:34:56,374 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [2, 2, 1, 1, 1, 1, 1, 1, 1] [2021-11-19 04:34:56,374 INFO L791 eck$LassoCheckResult]: Stem: 748#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier; 749#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet10#1, main_#t~nondet11#1, main_#t~malloc12#1.base, main_#t~malloc12#1.offset, main_#t~malloc13#1.base, main_#t~malloc13#1.offset, main_#t~nondet15#1, main_#t~post14#1, main_~i~0#1, main_#t~nondet17#1, main_#t~post16#1, main_~i~1#1, main_#t~ret18#1, main_~length1~0#1, main_~length2~0#1, main_~nondetString1~0#1.base, main_~nondetString1~0#1.offset, main_~nondetString2~0#1.base, main_~nondetString2~0#1.offset;main_~length1~0#1 := main_#t~nondet10#1;havoc main_#t~nondet10#1;main_~length2~0#1 := main_#t~nondet11#1;havoc main_#t~nondet11#1; 758#L532 assume !(main_~length1~0#1 < 1); 750#L532-2 assume !(main_~length2~0#1 < 1); 746#L535-1 call main_#t~malloc12#1.base, main_#t~malloc12#1.offset := #Ultimate.allocOnStack(main_~length1~0#1);main_~nondetString1~0#1.base, main_~nondetString1~0#1.offset := main_#t~malloc12#1.base, main_#t~malloc12#1.offset;call main_#t~malloc13#1.base, main_#t~malloc13#1.offset := #Ultimate.allocOnStack(main_~length2~0#1);main_~nondetString2~0#1.base, main_~nondetString2~0#1.offset := main_#t~malloc13#1.base, main_#t~malloc13#1.offset;main_~i~0#1 := 0; 747#L541-3 assume !!(main_~i~0#1 < main_~length1~0#1 - 1);call write~int(main_#t~nondet15#1, main_~nondetString1~0#1.base, main_~nondetString1~0#1.offset + main_~i~0#1, 1);havoc main_#t~nondet15#1; 765#L541-2 main_#t~post14#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post14#1;havoc main_#t~post14#1; 766#L541-3 assume !(main_~i~0#1 < main_~length1~0#1 - 1); 759#L541-4 main_~i~1#1 := 0; 753#L546-3 assume !(main_~i~1#1 < main_~length2~0#1 - 1); 754#L546-4 call write~int(0, main_~nondetString1~0#1.base, main_~nondetString1~0#1.offset + (main_~length1~0#1 - 1), 1);call write~int(0, main_~nondetString2~0#1.base, main_~nondetString2~0#1.offset + (main_~length2~0#1 - 1), 1);assume { :begin_inline_cstrspn } true;cstrspn_#in~s1#1.base, cstrspn_#in~s1#1.offset, cstrspn_#in~s2#1.base, cstrspn_#in~s2#1.offset := main_~nondetString1~0#1.base, main_~nondetString1~0#1.offset, main_~nondetString2~0#1.base, main_~nondetString2~0#1.offset;havoc cstrspn_#res#1;havoc cstrspn_#t~mem4#1, cstrspn_#t~post8#1.base, cstrspn_#t~post8#1.offset, cstrspn_#t~mem5#1, cstrspn_#t~mem6#1, cstrspn_#t~short7#1, cstrspn_#t~mem9#1, cstrspn_#t~post2#1.base, cstrspn_#t~post2#1.offset, cstrspn_#t~mem3#1, cstrspn_~s1#1.base, cstrspn_~s1#1.offset, cstrspn_~s2#1.base, cstrspn_~s2#1.offset, cstrspn_~sc1~0#1.base, cstrspn_~sc1~0#1.offset, cstrspn_~s~0#1.base, cstrspn_~s~0#1.offset, cstrspn_~c~0#1;cstrspn_~s1#1.base, cstrspn_~s1#1.offset := cstrspn_#in~s1#1.base, cstrspn_#in~s1#1.offset;cstrspn_~s2#1.base, cstrspn_~s2#1.offset := cstrspn_#in~s2#1.base, cstrspn_#in~s2#1.offset;havoc cstrspn_~sc1~0#1.base, cstrspn_~sc1~0#1.offset;havoc cstrspn_~s~0#1.base, cstrspn_~s~0#1.offset;havoc cstrspn_~c~0#1;cstrspn_~sc1~0#1.base, cstrspn_~sc1~0#1.offset := cstrspn_~s1#1.base, cstrspn_~s1#1.offset; 760#L519-4 [2021-11-19 04:34:56,375 INFO L793 eck$LassoCheckResult]: Loop: 760#L519-4 call cstrspn_#t~mem3#1 := read~int(cstrspn_~sc1~0#1.base, cstrspn_~sc1~0#1.offset, 1); 767#L519-1 assume !!(0 != cstrspn_#t~mem3#1);havoc cstrspn_#t~mem3#1;cstrspn_~s~0#1.base, cstrspn_~s~0#1.offset := cstrspn_~s2#1.base, cstrspn_~s2#1.offset;call cstrspn_#t~mem4#1 := read~int(cstrspn_~sc1~0#1.base, cstrspn_~sc1~0#1.offset, 1);cstrspn_~c~0#1 := cstrspn_#t~mem4#1;havoc cstrspn_#t~mem4#1; 773#L522-5 call cstrspn_#t~mem5#1 := read~int(cstrspn_~s~0#1.base, cstrspn_~s~0#1.offset, 1);cstrspn_#t~short7#1 := 0 != cstrspn_#t~mem5#1; 772#L522-1 assume cstrspn_#t~short7#1;call cstrspn_#t~mem6#1 := read~int(cstrspn_~s~0#1.base, cstrspn_~s~0#1.offset, 1);cstrspn_#t~short7#1 := cstrspn_#t~mem6#1 != (if cstrspn_~c~0#1 % 256 <= 127 then cstrspn_~c~0#1 % 256 else cstrspn_~c~0#1 % 256 - 256); 761#L522-3 assume !!cstrspn_#t~short7#1;havoc cstrspn_#t~mem5#1;havoc cstrspn_#t~mem6#1;havoc cstrspn_#t~short7#1;cstrspn_#t~post8#1.base, cstrspn_#t~post8#1.offset := cstrspn_~s~0#1.base, cstrspn_~s~0#1.offset;cstrspn_~s~0#1.base, cstrspn_~s~0#1.offset := cstrspn_#t~post8#1.base, 1 + cstrspn_#t~post8#1.offset;havoc cstrspn_#t~post8#1.base, cstrspn_#t~post8#1.offset; 762#L522-5 call cstrspn_#t~mem5#1 := read~int(cstrspn_~s~0#1.base, cstrspn_~s~0#1.offset, 1);cstrspn_#t~short7#1 := 0 != cstrspn_#t~mem5#1; 778#L522-1 assume cstrspn_#t~short7#1;call cstrspn_#t~mem6#1 := read~int(cstrspn_~s~0#1.base, cstrspn_~s~0#1.offset, 1);cstrspn_#t~short7#1 := cstrspn_#t~mem6#1 != (if cstrspn_~c~0#1 % 256 <= 127 then cstrspn_~c~0#1 % 256 else cstrspn_~c~0#1 % 256 - 256); 777#L522-3 assume !cstrspn_#t~short7#1;havoc cstrspn_#t~mem5#1;havoc cstrspn_#t~mem6#1;havoc cstrspn_#t~short7#1; 776#L522-6 call cstrspn_#t~mem9#1 := read~int(cstrspn_~s~0#1.base, cstrspn_~s~0#1.offset, 1); 775#L524 assume !(cstrspn_#t~mem9#1 != cstrspn_~c~0#1);havoc cstrspn_#t~mem9#1; 763#L519-3 cstrspn_#t~post2#1.base, cstrspn_#t~post2#1.offset := cstrspn_~sc1~0#1.base, cstrspn_~sc1~0#1.offset;cstrspn_~sc1~0#1.base, cstrspn_~sc1~0#1.offset := cstrspn_#t~post2#1.base, 1 + cstrspn_#t~post2#1.offset;havoc cstrspn_#t~post2#1.base, cstrspn_#t~post2#1.offset; 760#L519-4 [2021-11-19 04:34:56,376 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 04:34:56,376 INFO L85 PathProgramCache]: Analyzing trace with hash -2034626632, now seen corresponding path program 3 times [2021-11-19 04:34:56,376 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-19 04:34:56,376 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [554031457] [2021-11-19 04:34:56,377 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 04:34:56,377 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-19 04:34:56,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-19 04:34:56,398 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-19 04:34:56,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-19 04:34:56,427 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-11-19 04:34:56,429 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 04:34:56,431 INFO L85 PathProgramCache]: Analyzing trace with hash -898285594, now seen corresponding path program 1 times [2021-11-19 04:34:56,432 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-19 04:34:56,432 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1580336772] [2021-11-19 04:34:56,432 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 04:34:56,432 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-19 04:34:56,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-19 04:34:56,443 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-19 04:34:56,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-19 04:34:56,464 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-11-19 04:34:56,465 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 04:34:56,465 INFO L85 PathProgramCache]: Analyzing trace with hash -1809250353, now seen corresponding path program 1 times [2021-11-19 04:34:56,465 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-19 04:34:56,468 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1520148886] [2021-11-19 04:34:56,469 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 04:34:56,469 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-19 04:34:56,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 04:34:56,617 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 2 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-11-19 04:34:56,617 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-19 04:34:56,617 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1520148886] [2021-11-19 04:34:56,617 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1520148886] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-19 04:34:56,622 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [900273197] [2021-11-19 04:34:56,622 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 04:34:56,623 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-19 04:34:56,623 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2160eeb-bf7f-4ecc-b998-5d4a699c82ac/bin/uautomizer-ZXIjhQolGL/z3 [2021-11-19 04:34:56,624 INFO L229 MonitoredProcess]: Starting monitored process 22 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2160eeb-bf7f-4ecc-b998-5d4a699c82ac/bin/uautomizer-ZXIjhQolGL/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-19 04:34:56,647 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2160eeb-bf7f-4ecc-b998-5d4a699c82ac/bin/uautomizer-ZXIjhQolGL/z3 -smt2 -in SMTLIB2_COMPLIANT=true (22)] Waiting until timeout for monitored process [2021-11-19 04:34:56,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 04:34:56,708 INFO L263 TraceCheckSpWp]: Trace formula consists of 142 conjuncts, 16 conjunts are in the unsatisfiable core [2021-11-19 04:34:56,710 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 04:34:56,744 INFO L354 Elim1Store]: treesize reduction 11, result has 45.0 percent of original size [2021-11-19 04:34:56,744 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 1 case distinctions, treesize of input 9 treesize of output 15 [2021-11-19 04:34:56,903 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-11-19 04:34:56,903 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-19 04:34:56,903 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [900273197] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-19 04:34:56,904 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-11-19 04:34:56,904 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [8] total 15 [2021-11-19 04:34:56,904 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [338714544] [2021-11-19 04:34:56,904 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-19 04:34:57,424 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-19 04:34:57,425 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-11-19 04:34:57,425 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=168, Unknown=0, NotChecked=0, Total=210 [2021-11-19 04:34:57,425 INFO L87 Difference]: Start difference. First operand 33 states and 40 transitions. cyclomatic complexity: 11 Second operand has 9 states, 9 states have (on average 2.4444444444444446) internal successors, (22), 9 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-19 04:34:57,598 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 04:34:57,599 INFO L93 Difference]: Finished difference Result 29 states and 34 transitions. [2021-11-19 04:34:57,599 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-11-19 04:34:57,600 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 29 states and 34 transitions. [2021-11-19 04:34:57,601 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 8 [2021-11-19 04:34:57,601 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 29 states to 22 states and 27 transitions. [2021-11-19 04:34:57,601 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 17 [2021-11-19 04:34:57,602 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 17 [2021-11-19 04:34:57,602 INFO L73 IsDeterministic]: Start isDeterministic. Operand 22 states and 27 transitions. [2021-11-19 04:34:57,602 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-11-19 04:34:57,602 INFO L681 BuchiCegarLoop]: Abstraction has 22 states and 27 transitions. [2021-11-19 04:34:57,602 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22 states and 27 transitions. [2021-11-19 04:34:57,607 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22 to 21. [2021-11-19 04:34:57,608 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 21 states, 21 states have (on average 1.2380952380952381) internal successors, (26), 20 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-19 04:34:57,608 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 26 transitions. [2021-11-19 04:34:57,608 INFO L704 BuchiCegarLoop]: Abstraction has 21 states and 26 transitions. [2021-11-19 04:34:57,609 INFO L587 BuchiCegarLoop]: Abstraction has 21 states and 26 transitions. [2021-11-19 04:34:57,609 INFO L425 BuchiCegarLoop]: ======== Iteration 9============ [2021-11-19 04:34:57,609 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 21 states and 26 transitions. [2021-11-19 04:34:57,609 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 8 [2021-11-19 04:34:57,609 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-11-19 04:34:57,610 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-11-19 04:34:57,610 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-19 04:34:57,610 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1] [2021-11-19 04:34:57,611 INFO L791 eck$LassoCheckResult]: Stem: 903#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier; 904#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet10#1, main_#t~nondet11#1, main_#t~malloc12#1.base, main_#t~malloc12#1.offset, main_#t~malloc13#1.base, main_#t~malloc13#1.offset, main_#t~nondet15#1, main_#t~post14#1, main_~i~0#1, main_#t~nondet17#1, main_#t~post16#1, main_~i~1#1, main_#t~ret18#1, main_~length1~0#1, main_~length2~0#1, main_~nondetString1~0#1.base, main_~nondetString1~0#1.offset, main_~nondetString2~0#1.base, main_~nondetString2~0#1.offset;main_~length1~0#1 := main_#t~nondet10#1;havoc main_#t~nondet10#1;main_~length2~0#1 := main_#t~nondet11#1;havoc main_#t~nondet11#1; 912#L532 assume !(main_~length1~0#1 < 1); 905#L532-2 assume !(main_~length2~0#1 < 1); 901#L535-1 call main_#t~malloc12#1.base, main_#t~malloc12#1.offset := #Ultimate.allocOnStack(main_~length1~0#1);main_~nondetString1~0#1.base, main_~nondetString1~0#1.offset := main_#t~malloc12#1.base, main_#t~malloc12#1.offset;call main_#t~malloc13#1.base, main_#t~malloc13#1.offset := #Ultimate.allocOnStack(main_~length2~0#1);main_~nondetString2~0#1.base, main_~nondetString2~0#1.offset := main_#t~malloc13#1.base, main_#t~malloc13#1.offset;main_~i~0#1 := 0; 902#L541-3 assume !!(main_~i~0#1 < main_~length1~0#1 - 1);call write~int(main_#t~nondet15#1, main_~nondetString1~0#1.base, main_~nondetString1~0#1.offset + main_~i~0#1, 1);havoc main_#t~nondet15#1; 918#L541-2 main_#t~post14#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post14#1;havoc main_#t~post14#1; 919#L541-3 assume !(main_~i~0#1 < main_~length1~0#1 - 1); 913#L541-4 main_~i~1#1 := 0; 908#L546-3 assume !!(main_~i~1#1 < main_~length2~0#1 - 1);call write~int(main_#t~nondet17#1, main_~nondetString2~0#1.base, main_~nondetString2~0#1.offset + main_~i~1#1, 1);havoc main_#t~nondet17#1; 909#L546-2 main_#t~post16#1 := main_~i~1#1;main_~i~1#1 := 1 + main_#t~post16#1;havoc main_#t~post16#1; 910#L546-3 assume !(main_~i~1#1 < main_~length2~0#1 - 1); 911#L546-4 call write~int(0, main_~nondetString1~0#1.base, main_~nondetString1~0#1.offset + (main_~length1~0#1 - 1), 1);call write~int(0, main_~nondetString2~0#1.base, main_~nondetString2~0#1.offset + (main_~length2~0#1 - 1), 1);assume { :begin_inline_cstrspn } true;cstrspn_#in~s1#1.base, cstrspn_#in~s1#1.offset, cstrspn_#in~s2#1.base, cstrspn_#in~s2#1.offset := main_~nondetString1~0#1.base, main_~nondetString1~0#1.offset, main_~nondetString2~0#1.base, main_~nondetString2~0#1.offset;havoc cstrspn_#res#1;havoc cstrspn_#t~mem4#1, cstrspn_#t~post8#1.base, cstrspn_#t~post8#1.offset, cstrspn_#t~mem5#1, cstrspn_#t~mem6#1, cstrspn_#t~short7#1, cstrspn_#t~mem9#1, cstrspn_#t~post2#1.base, cstrspn_#t~post2#1.offset, cstrspn_#t~mem3#1, cstrspn_~s1#1.base, cstrspn_~s1#1.offset, cstrspn_~s2#1.base, cstrspn_~s2#1.offset, cstrspn_~sc1~0#1.base, cstrspn_~sc1~0#1.offset, cstrspn_~s~0#1.base, cstrspn_~s~0#1.offset, cstrspn_~c~0#1;cstrspn_~s1#1.base, cstrspn_~s1#1.offset := cstrspn_#in~s1#1.base, cstrspn_#in~s1#1.offset;cstrspn_~s2#1.base, cstrspn_~s2#1.offset := cstrspn_#in~s2#1.base, cstrspn_#in~s2#1.offset;havoc cstrspn_~sc1~0#1.base, cstrspn_~sc1~0#1.offset;havoc cstrspn_~s~0#1.base, cstrspn_~s~0#1.offset;havoc cstrspn_~c~0#1;cstrspn_~sc1~0#1.base, cstrspn_~sc1~0#1.offset := cstrspn_~s1#1.base, cstrspn_~s1#1.offset; 914#L519-4 [2021-11-19 04:34:57,611 INFO L793 eck$LassoCheckResult]: Loop: 914#L519-4 call cstrspn_#t~mem3#1 := read~int(cstrspn_~sc1~0#1.base, cstrspn_~sc1~0#1.offset, 1); 920#L519-1 assume !!(0 != cstrspn_#t~mem3#1);havoc cstrspn_#t~mem3#1;cstrspn_~s~0#1.base, cstrspn_~s~0#1.offset := cstrspn_~s2#1.base, cstrspn_~s2#1.offset;call cstrspn_#t~mem4#1 := read~int(cstrspn_~sc1~0#1.base, cstrspn_~sc1~0#1.offset, 1);cstrspn_~c~0#1 := cstrspn_#t~mem4#1;havoc cstrspn_#t~mem4#1; 916#L522-5 call cstrspn_#t~mem5#1 := read~int(cstrspn_~s~0#1.base, cstrspn_~s~0#1.offset, 1);cstrspn_#t~short7#1 := 0 != cstrspn_#t~mem5#1; 921#L522-1 assume cstrspn_#t~short7#1;call cstrspn_#t~mem6#1 := read~int(cstrspn_~s~0#1.base, cstrspn_~s~0#1.offset, 1);cstrspn_#t~short7#1 := cstrspn_#t~mem6#1 != (if cstrspn_~c~0#1 % 256 <= 127 then cstrspn_~c~0#1 % 256 else cstrspn_~c~0#1 % 256 - 256); 915#L522-3 assume !cstrspn_#t~short7#1;havoc cstrspn_#t~mem5#1;havoc cstrspn_#t~mem6#1;havoc cstrspn_#t~short7#1; 906#L522-6 call cstrspn_#t~mem9#1 := read~int(cstrspn_~s~0#1.base, cstrspn_~s~0#1.offset, 1); 907#L524 assume !(cstrspn_#t~mem9#1 != cstrspn_~c~0#1);havoc cstrspn_#t~mem9#1; 917#L519-3 cstrspn_#t~post2#1.base, cstrspn_#t~post2#1.offset := cstrspn_~sc1~0#1.base, cstrspn_~sc1~0#1.offset;cstrspn_~sc1~0#1.base, cstrspn_~sc1~0#1.offset := cstrspn_#t~post2#1.base, 1 + cstrspn_#t~post2#1.offset;havoc cstrspn_#t~post2#1.base, cstrspn_#t~post2#1.offset; 914#L519-4 [2021-11-19 04:34:57,612 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 04:34:57,613 INFO L85 PathProgramCache]: Analyzing trace with hash -1066016806, now seen corresponding path program 1 times [2021-11-19 04:34:57,613 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-19 04:34:57,613 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [74636468] [2021-11-19 04:34:57,613 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 04:34:57,613 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-19 04:34:57,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-19 04:34:57,636 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-19 04:34:57,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-19 04:34:57,659 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-11-19 04:34:57,660 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 04:34:57,660 INFO L85 PathProgramCache]: Analyzing trace with hash -904885455, now seen corresponding path program 3 times [2021-11-19 04:34:57,660 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-19 04:34:57,660 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [972306176] [2021-11-19 04:34:57,660 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 04:34:57,661 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-19 04:34:57,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-19 04:34:57,675 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-19 04:34:57,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-19 04:34:57,693 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-11-19 04:34:57,697 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 04:34:57,697 INFO L85 PathProgramCache]: Analyzing trace with hash -1875279350, now seen corresponding path program 1 times [2021-11-19 04:34:57,697 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-19 04:34:57,698 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [279690760] [2021-11-19 04:34:57,698 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 04:34:57,699 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-19 04:34:57,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-19 04:34:57,719 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-19 04:34:57,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-19 04:34:57,746 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-11-19 04:34:59,268 INFO L210 LassoAnalysis]: Preferences: [2021-11-19 04:34:59,268 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-11-19 04:34:59,268 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-11-19 04:34:59,268 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-11-19 04:34:59,268 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2021-11-19 04:34:59,269 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-19 04:34:59,269 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-11-19 04:34:59,269 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-11-19 04:34:59,269 INFO L133 ssoRankerPreferences]: Filename of dumped script: cstrspn-alloca-1.i_Iteration9_Lasso [2021-11-19 04:34:59,269 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-11-19 04:34:59,269 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-11-19 04:34:59,286 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-19 04:34:59,289 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-19 04:34:59,295 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-19 04:35:00,113 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-19 04:35:00,115 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-19 04:35:00,118 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-19 04:35:00,121 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-19 04:35:00,124 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-19 04:35:00,127 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-19 04:35:00,130 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-19 04:35:00,133 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-19 04:35:00,135 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-19 04:35:00,139 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-19 04:35:00,142 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-19 04:35:00,146 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-19 04:35:00,150 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-19 04:35:00,153 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-19 04:35:00,157 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-19 04:35:00,160 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-19 04:35:00,162 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-19 04:35:00,165 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-19 04:35:00,168 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-19 04:35:00,171 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-19 04:35:00,174 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-19 04:35:00,177 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-19 04:35:01,059 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-11-19 04:35:01,061 INFO L490 LassoAnalysis]: Using template 'affine'. [2021-11-19 04:35:01,062 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-19 04:35:01,062 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2160eeb-bf7f-4ecc-b998-5d4a699c82ac/bin/uautomizer-ZXIjhQolGL/z3 [2021-11-19 04:35:01,068 INFO L229 MonitoredProcess]: Starting monitored process 23 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2160eeb-bf7f-4ecc-b998-5d4a699c82ac/bin/uautomizer-ZXIjhQolGL/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-19 04:35:01,069 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2160eeb-bf7f-4ecc-b998-5d4a699c82ac/bin/uautomizer-ZXIjhQolGL/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (23)] Waiting until timeout for monitored process [2021-11-19 04:35:01,069 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 [2021-11-19 04:35:01,079 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-19 04:35:01,079 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-11-19 04:35:01,079 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-19 04:35:01,079 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-19 04:35:01,079 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-19 04:35:01,080 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-11-19 04:35:01,080 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-11-19 04:35:01,081 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-11-19 04:35:01,106 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2160eeb-bf7f-4ecc-b998-5d4a699c82ac/bin/uautomizer-ZXIjhQolGL/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (23)] Forceful destruction successful, exit code 0 [2021-11-19 04:35:01,107 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-19 04:35:01,107 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2160eeb-bf7f-4ecc-b998-5d4a699c82ac/bin/uautomizer-ZXIjhQolGL/z3 [2021-11-19 04:35:01,108 INFO L229 MonitoredProcess]: Starting monitored process 24 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2160eeb-bf7f-4ecc-b998-5d4a699c82ac/bin/uautomizer-ZXIjhQolGL/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-19 04:35:01,109 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2160eeb-bf7f-4ecc-b998-5d4a699c82ac/bin/uautomizer-ZXIjhQolGL/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (24)] Waiting until timeout for monitored process [2021-11-19 04:35:01,110 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-11-19 04:35:01,119 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-19 04:35:01,120 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-19 04:35:01,120 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-19 04:35:01,120 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-19 04:35:01,122 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-11-19 04:35:01,122 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-11-19 04:35:01,147 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-11-19 04:35:01,194 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2160eeb-bf7f-4ecc-b998-5d4a699c82ac/bin/uautomizer-ZXIjhQolGL/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (24)] Forceful destruction successful, exit code 0 [2021-11-19 04:35:01,194 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-19 04:35:01,195 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2160eeb-bf7f-4ecc-b998-5d4a699c82ac/bin/uautomizer-ZXIjhQolGL/z3 [2021-11-19 04:35:01,196 INFO L229 MonitoredProcess]: Starting monitored process 25 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2160eeb-bf7f-4ecc-b998-5d4a699c82ac/bin/uautomizer-ZXIjhQolGL/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-19 04:35:01,198 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 [2021-11-19 04:35:01,212 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-19 04:35:01,212 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-19 04:35:01,212 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-19 04:35:01,212 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-19 04:35:01,215 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2160eeb-bf7f-4ecc-b998-5d4a699c82ac/bin/uautomizer-ZXIjhQolGL/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (25)] Waiting until timeout for monitored process [2021-11-19 04:35:01,231 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-11-19 04:35:01,231 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-11-19 04:35:01,267 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2021-11-19 04:35:01,320 INFO L443 ModelExtractionUtils]: Simplification made 11 calls to the SMT solver. [2021-11-19 04:35:01,320 INFO L444 ModelExtractionUtils]: 43 out of 55 variables were initially zero. Simplification set additionally 9 variables to zero. [2021-11-19 04:35:01,320 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-19 04:35:01,320 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2160eeb-bf7f-4ecc-b998-5d4a699c82ac/bin/uautomizer-ZXIjhQolGL/z3 [2021-11-19 04:35:01,328 INFO L229 MonitoredProcess]: Starting monitored process 26 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2160eeb-bf7f-4ecc-b998-5d4a699c82ac/bin/uautomizer-ZXIjhQolGL/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-19 04:35:01,330 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2021-11-19 04:35:01,339 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2160eeb-bf7f-4ecc-b998-5d4a699c82ac/bin/uautomizer-ZXIjhQolGL/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (26)] Waiting until timeout for monitored process [2021-11-19 04:35:01,342 INFO L438 nArgumentSynthesizer]: Removed 2 redundant supporting invariants from a total of 2. [2021-11-19 04:35:01,343 INFO L513 LassoAnalysis]: Proved termination. [2021-11-19 04:35:01,343 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(v_rep(select #length ULTIMATE.start_main_#t~malloc12#1.base)_3, ULTIMATE.start_cstrspn_~sc1~0#1.offset) = 1*v_rep(select #length ULTIMATE.start_main_#t~malloc12#1.base)_3 - 1*ULTIMATE.start_cstrspn_~sc1~0#1.offset Supporting invariants [] [2021-11-19 04:35:01,371 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2160eeb-bf7f-4ecc-b998-5d4a699c82ac/bin/uautomizer-ZXIjhQolGL/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (25)] Forceful destruction successful, exit code 0 [2021-11-19 04:35:01,445 INFO L297 tatePredicateManager]: 14 out of 15 supporting invariants were superfluous and have been removed [2021-11-19 04:35:01,468 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 04:35:01,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 04:35:01,501 INFO L263 TraceCheckSpWp]: Trace formula consists of 85 conjuncts, 10 conjunts are in the unsatisfiable core [2021-11-19 04:35:01,503 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 04:35:01,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 04:35:01,610 INFO L263 TraceCheckSpWp]: Trace formula consists of 49 conjuncts, 8 conjunts are in the unsatisfiable core [2021-11-19 04:35:01,611 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 04:35:01,709 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-19 04:35:01,711 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 [2021-11-19 04:35:01,711 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 21 states and 26 transitions. cyclomatic complexity: 8 Second operand has 4 states, 4 states have (on average 5.25) internal successors, (21), 4 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) [2021-11-19 04:35:01,764 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 21 states and 26 transitions. cyclomatic complexity: 8. Second operand has 4 states, 4 states have (on average 5.25) internal successors, (21), 4 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) Result 29 states and 36 transitions. Complement of second has 5 states. [2021-11-19 04:35:01,765 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 [2021-11-19 04:35:01,766 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4 states, 4 states have (on average 5.25) internal successors, (21), 4 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) [2021-11-19 04:35:01,768 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 24 transitions. [2021-11-19 04:35:01,768 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 24 transitions. Stem has 13 letters. Loop has 8 letters. [2021-11-19 04:35:01,769 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-11-19 04:35:01,769 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 24 transitions. Stem has 21 letters. Loop has 8 letters. [2021-11-19 04:35:01,771 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-11-19 04:35:01,771 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 24 transitions. Stem has 13 letters. Loop has 16 letters. [2021-11-19 04:35:01,771 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-11-19 04:35:01,772 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 29 states and 36 transitions. [2021-11-19 04:35:01,773 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2021-11-19 04:35:01,775 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 29 states to 26 states and 33 transitions. [2021-11-19 04:35:01,775 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 13 [2021-11-19 04:35:01,776 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 14 [2021-11-19 04:35:01,776 INFO L73 IsDeterministic]: Start isDeterministic. Operand 26 states and 33 transitions. [2021-11-19 04:35:01,776 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2021-11-19 04:35:01,776 INFO L681 BuchiCegarLoop]: Abstraction has 26 states and 33 transitions. [2021-11-19 04:35:01,777 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26 states and 33 transitions. [2021-11-19 04:35:01,787 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26 to 26. [2021-11-19 04:35:01,790 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 26 states, 26 states have (on average 1.2692307692307692) internal successors, (33), 25 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-19 04:35:01,792 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26 states to 26 states and 33 transitions. [2021-11-19 04:35:01,793 INFO L704 BuchiCegarLoop]: Abstraction has 26 states and 33 transitions. [2021-11-19 04:35:01,793 INFO L587 BuchiCegarLoop]: Abstraction has 26 states and 33 transitions. [2021-11-19 04:35:01,793 INFO L425 BuchiCegarLoop]: ======== Iteration 10============ [2021-11-19 04:35:01,794 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 26 states and 33 transitions. [2021-11-19 04:35:01,794 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2021-11-19 04:35:01,794 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-11-19 04:35:01,794 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-11-19 04:35:01,795 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-19 04:35:01,795 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2021-11-19 04:35:01,796 INFO L791 eck$LassoCheckResult]: Stem: 1104#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier; 1105#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet10#1, main_#t~nondet11#1, main_#t~malloc12#1.base, main_#t~malloc12#1.offset, main_#t~malloc13#1.base, main_#t~malloc13#1.offset, main_#t~nondet15#1, main_#t~post14#1, main_~i~0#1, main_#t~nondet17#1, main_#t~post16#1, main_~i~1#1, main_#t~ret18#1, main_~length1~0#1, main_~length2~0#1, main_~nondetString1~0#1.base, main_~nondetString1~0#1.offset, main_~nondetString2~0#1.base, main_~nondetString2~0#1.offset;main_~length1~0#1 := main_#t~nondet10#1;havoc main_#t~nondet10#1;main_~length2~0#1 := main_#t~nondet11#1;havoc main_#t~nondet11#1; 1113#L532 assume !(main_~length1~0#1 < 1); 1106#L532-2 assume !(main_~length2~0#1 < 1); 1102#L535-1 call main_#t~malloc12#1.base, main_#t~malloc12#1.offset := #Ultimate.allocOnStack(main_~length1~0#1);main_~nondetString1~0#1.base, main_~nondetString1~0#1.offset := main_#t~malloc12#1.base, main_#t~malloc12#1.offset;call main_#t~malloc13#1.base, main_#t~malloc13#1.offset := #Ultimate.allocOnStack(main_~length2~0#1);main_~nondetString2~0#1.base, main_~nondetString2~0#1.offset := main_#t~malloc13#1.base, main_#t~malloc13#1.offset;main_~i~0#1 := 0; 1103#L541-3 assume !!(main_~i~0#1 < main_~length1~0#1 - 1);call write~int(main_#t~nondet15#1, main_~nondetString1~0#1.base, main_~nondetString1~0#1.offset + main_~i~0#1, 1);havoc main_#t~nondet15#1; 1122#L541-2 main_#t~post14#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post14#1;havoc main_#t~post14#1; 1123#L541-3 assume !(main_~i~0#1 < main_~length1~0#1 - 1); 1114#L541-4 main_~i~1#1 := 0; 1109#L546-3 assume !!(main_~i~1#1 < main_~length2~0#1 - 1);call write~int(main_#t~nondet17#1, main_~nondetString2~0#1.base, main_~nondetString2~0#1.offset + main_~i~1#1, 1);havoc main_#t~nondet17#1; 1110#L546-2 main_#t~post16#1 := main_~i~1#1;main_~i~1#1 := 1 + main_#t~post16#1;havoc main_#t~post16#1; 1111#L546-3 assume !(main_~i~1#1 < main_~length2~0#1 - 1); 1112#L546-4 call write~int(0, main_~nondetString1~0#1.base, main_~nondetString1~0#1.offset + (main_~length1~0#1 - 1), 1);call write~int(0, main_~nondetString2~0#1.base, main_~nondetString2~0#1.offset + (main_~length2~0#1 - 1), 1);assume { :begin_inline_cstrspn } true;cstrspn_#in~s1#1.base, cstrspn_#in~s1#1.offset, cstrspn_#in~s2#1.base, cstrspn_#in~s2#1.offset := main_~nondetString1~0#1.base, main_~nondetString1~0#1.offset, main_~nondetString2~0#1.base, main_~nondetString2~0#1.offset;havoc cstrspn_#res#1;havoc cstrspn_#t~mem4#1, cstrspn_#t~post8#1.base, cstrspn_#t~post8#1.offset, cstrspn_#t~mem5#1, cstrspn_#t~mem6#1, cstrspn_#t~short7#1, cstrspn_#t~mem9#1, cstrspn_#t~post2#1.base, cstrspn_#t~post2#1.offset, cstrspn_#t~mem3#1, cstrspn_~s1#1.base, cstrspn_~s1#1.offset, cstrspn_~s2#1.base, cstrspn_~s2#1.offset, cstrspn_~sc1~0#1.base, cstrspn_~sc1~0#1.offset, cstrspn_~s~0#1.base, cstrspn_~s~0#1.offset, cstrspn_~c~0#1;cstrspn_~s1#1.base, cstrspn_~s1#1.offset := cstrspn_#in~s1#1.base, cstrspn_#in~s1#1.offset;cstrspn_~s2#1.base, cstrspn_~s2#1.offset := cstrspn_#in~s2#1.base, cstrspn_#in~s2#1.offset;havoc cstrspn_~sc1~0#1.base, cstrspn_~sc1~0#1.offset;havoc cstrspn_~s~0#1.base, cstrspn_~s~0#1.offset;havoc cstrspn_~c~0#1;cstrspn_~sc1~0#1.base, cstrspn_~sc1~0#1.offset := cstrspn_~s1#1.base, cstrspn_~s1#1.offset; 1115#L519-4 call cstrspn_#t~mem3#1 := read~int(cstrspn_~sc1~0#1.base, cstrspn_~sc1~0#1.offset, 1); 1125#L519-1 assume !!(0 != cstrspn_#t~mem3#1);havoc cstrspn_#t~mem3#1;cstrspn_~s~0#1.base, cstrspn_~s~0#1.offset := cstrspn_~s2#1.base, cstrspn_~s2#1.offset;call cstrspn_#t~mem4#1 := read~int(cstrspn_~sc1~0#1.base, cstrspn_~sc1~0#1.offset, 1);cstrspn_~c~0#1 := cstrspn_#t~mem4#1;havoc cstrspn_#t~mem4#1; 1117#L522-5 [2021-11-19 04:35:01,796 INFO L793 eck$LassoCheckResult]: Loop: 1117#L522-5 call cstrspn_#t~mem5#1 := read~int(cstrspn_~s~0#1.base, cstrspn_~s~0#1.offset, 1);cstrspn_#t~short7#1 := 0 != cstrspn_#t~mem5#1; 1126#L522-1 assume cstrspn_#t~short7#1;call cstrspn_#t~mem6#1 := read~int(cstrspn_~s~0#1.base, cstrspn_~s~0#1.offset, 1);cstrspn_#t~short7#1 := cstrspn_#t~mem6#1 != (if cstrspn_~c~0#1 % 256 <= 127 then cstrspn_~c~0#1 % 256 else cstrspn_~c~0#1 % 256 - 256); 1116#L522-3 assume !!cstrspn_#t~short7#1;havoc cstrspn_#t~mem5#1;havoc cstrspn_#t~mem6#1;havoc cstrspn_#t~short7#1;cstrspn_#t~post8#1.base, cstrspn_#t~post8#1.offset := cstrspn_~s~0#1.base, cstrspn_~s~0#1.offset;cstrspn_~s~0#1.base, cstrspn_~s~0#1.offset := cstrspn_#t~post8#1.base, 1 + cstrspn_#t~post8#1.offset;havoc cstrspn_#t~post8#1.base, cstrspn_#t~post8#1.offset; 1117#L522-5 [2021-11-19 04:35:01,797 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 04:35:01,797 INFO L85 PathProgramCache]: Analyzing trace with hash 2055034687, now seen corresponding path program 1 times [2021-11-19 04:35:01,797 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-19 04:35:01,797 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [536004334] [2021-11-19 04:35:01,797 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 04:35:01,798 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-19 04:35:01,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-19 04:35:01,818 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-19 04:35:01,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-19 04:35:01,841 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-11-19 04:35:01,842 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 04:35:01,842 INFO L85 PathProgramCache]: Analyzing trace with hash 86496, now seen corresponding path program 2 times [2021-11-19 04:35:01,842 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-19 04:35:01,843 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [229044634] [2021-11-19 04:35:01,843 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 04:35:01,843 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-19 04:35:01,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-19 04:35:01,848 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-19 04:35:01,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-19 04:35:01,861 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-11-19 04:35:01,861 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 04:35:01,861 INFO L85 PathProgramCache]: Analyzing trace with hash 1074579938, now seen corresponding path program 1 times [2021-11-19 04:35:01,862 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-19 04:35:01,862 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [162321573] [2021-11-19 04:35:01,862 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 04:35:01,862 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-19 04:35:01,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-19 04:35:01,886 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-19 04:35:01,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-19 04:35:01,915 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-11-19 04:35:03,450 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2160eeb-bf7f-4ecc-b998-5d4a699c82ac/bin/uautomizer-ZXIjhQolGL/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (26)] Forceful destruction successful, exit code 0 [2021-11-19 04:35:03,977 INFO L210 LassoAnalysis]: Preferences: [2021-11-19 04:35:03,977 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-11-19 04:35:03,978 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-11-19 04:35:03,978 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-11-19 04:35:03,978 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2021-11-19 04:35:03,978 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-19 04:35:03,978 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-11-19 04:35:03,978 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-11-19 04:35:03,978 INFO L133 ssoRankerPreferences]: Filename of dumped script: cstrspn-alloca-1.i_Iteration10_Lasso [2021-11-19 04:35:03,978 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-11-19 04:35:03,978 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-11-19 04:35:03,988 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-19 04:35:03,991 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-19 04:35:03,994 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-19 04:35:03,998 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-19 04:35:04,000 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-19 04:35:04,003 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-19 04:35:04,006 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-19 04:35:04,009 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-19 04:35:04,012 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-19 04:35:04,014 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-19 04:35:04,022 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-19 04:35:04,025 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-19 04:35:04,029 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-19 04:35:04,033 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-19 04:35:04,759 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-19 04:35:04,777 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-19 04:35:04,779 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-19 04:35:04,782 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-19 04:35:04,785 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-19 04:35:04,788 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-19 04:35:04,790 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-19 04:35:04,793 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-19 04:35:04,795 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-19 04:35:04,797 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-19 04:35:04,800 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-19 04:35:04,802 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-19 04:35:05,846 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-11-19 04:35:05,846 INFO L490 LassoAnalysis]: Using template 'affine'. [2021-11-19 04:35:05,847 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-19 04:35:05,847 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2160eeb-bf7f-4ecc-b998-5d4a699c82ac/bin/uautomizer-ZXIjhQolGL/z3 [2021-11-19 04:35:05,859 INFO L229 MonitoredProcess]: Starting monitored process 27 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2160eeb-bf7f-4ecc-b998-5d4a699c82ac/bin/uautomizer-ZXIjhQolGL/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-19 04:35:05,860 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2160eeb-bf7f-4ecc-b998-5d4a699c82ac/bin/uautomizer-ZXIjhQolGL/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (27)] Waiting until timeout for monitored process [2021-11-19 04:35:05,861 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 [2021-11-19 04:35:05,871 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-19 04:35:05,871 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-11-19 04:35:05,871 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-19 04:35:05,871 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-19 04:35:05,871 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-19 04:35:05,872 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-11-19 04:35:05,872 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-11-19 04:35:05,875 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-11-19 04:35:05,900 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2160eeb-bf7f-4ecc-b998-5d4a699c82ac/bin/uautomizer-ZXIjhQolGL/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (27)] Ended with exit code 0 [2021-11-19 04:35:05,900 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-19 04:35:05,901 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2160eeb-bf7f-4ecc-b998-5d4a699c82ac/bin/uautomizer-ZXIjhQolGL/z3 [2021-11-19 04:35:05,901 INFO L229 MonitoredProcess]: Starting monitored process 28 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2160eeb-bf7f-4ecc-b998-5d4a699c82ac/bin/uautomizer-ZXIjhQolGL/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-19 04:35:05,902 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2160eeb-bf7f-4ecc-b998-5d4a699c82ac/bin/uautomizer-ZXIjhQolGL/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (28)] Waiting until timeout for monitored process [2021-11-19 04:35:05,904 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 [2021-11-19 04:35:05,913 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-19 04:35:05,913 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-11-19 04:35:05,913 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-19 04:35:05,913 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-19 04:35:05,913 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-19 04:35:05,914 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-11-19 04:35:05,914 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-11-19 04:35:05,915 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-11-19 04:35:05,941 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2160eeb-bf7f-4ecc-b998-5d4a699c82ac/bin/uautomizer-ZXIjhQolGL/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (28)] Ended with exit code 0 [2021-11-19 04:35:05,941 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-19 04:35:05,941 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2160eeb-bf7f-4ecc-b998-5d4a699c82ac/bin/uautomizer-ZXIjhQolGL/z3 [2021-11-19 04:35:05,942 INFO L229 MonitoredProcess]: Starting monitored process 29 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2160eeb-bf7f-4ecc-b998-5d4a699c82ac/bin/uautomizer-ZXIjhQolGL/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-19 04:35:05,944 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2160eeb-bf7f-4ecc-b998-5d4a699c82ac/bin/uautomizer-ZXIjhQolGL/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (29)] Waiting until timeout for monitored process [2021-11-19 04:35:05,945 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 [2021-11-19 04:35:05,954 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-19 04:35:05,954 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-19 04:35:05,954 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-19 04:35:05,954 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-19 04:35:05,956 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-11-19 04:35:05,956 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-11-19 04:35:05,974 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-11-19 04:35:06,000 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2160eeb-bf7f-4ecc-b998-5d4a699c82ac/bin/uautomizer-ZXIjhQolGL/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (29)] Ended with exit code 0 [2021-11-19 04:35:06,000 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-19 04:35:06,000 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2160eeb-bf7f-4ecc-b998-5d4a699c82ac/bin/uautomizer-ZXIjhQolGL/z3 [2021-11-19 04:35:06,001 INFO L229 MonitoredProcess]: Starting monitored process 30 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2160eeb-bf7f-4ecc-b998-5d4a699c82ac/bin/uautomizer-ZXIjhQolGL/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-19 04:35:06,002 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2160eeb-bf7f-4ecc-b998-5d4a699c82ac/bin/uautomizer-ZXIjhQolGL/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (30)] Waiting until timeout for monitored process [2021-11-19 04:35:06,003 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 [2021-11-19 04:35:06,011 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-19 04:35:06,012 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-11-19 04:35:06,012 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-19 04:35:06,012 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-19 04:35:06,012 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-19 04:35:06,012 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-11-19 04:35:06,012 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-11-19 04:35:06,014 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-11-19 04:35:06,040 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2160eeb-bf7f-4ecc-b998-5d4a699c82ac/bin/uautomizer-ZXIjhQolGL/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (30)] Forceful destruction successful, exit code 0 [2021-11-19 04:35:06,040 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-19 04:35:06,041 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2160eeb-bf7f-4ecc-b998-5d4a699c82ac/bin/uautomizer-ZXIjhQolGL/z3 [2021-11-19 04:35:06,041 INFO L229 MonitoredProcess]: Starting monitored process 31 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2160eeb-bf7f-4ecc-b998-5d4a699c82ac/bin/uautomizer-ZXIjhQolGL/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-19 04:35:06,045 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2160eeb-bf7f-4ecc-b998-5d4a699c82ac/bin/uautomizer-ZXIjhQolGL/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (31)] Waiting until timeout for monitored process [2021-11-19 04:35:06,045 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 [2021-11-19 04:35:06,054 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-19 04:35:06,054 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-11-19 04:35:06,055 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-19 04:35:06,055 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-19 04:35:06,055 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-19 04:35:06,056 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-11-19 04:35:06,056 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-11-19 04:35:06,079 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-11-19 04:35:06,105 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2160eeb-bf7f-4ecc-b998-5d4a699c82ac/bin/uautomizer-ZXIjhQolGL/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (31)] Ended with exit code 0 [2021-11-19 04:35:06,106 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-19 04:35:06,106 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2160eeb-bf7f-4ecc-b998-5d4a699c82ac/bin/uautomizer-ZXIjhQolGL/z3 [2021-11-19 04:35:06,107 INFO L229 MonitoredProcess]: Starting monitored process 32 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2160eeb-bf7f-4ecc-b998-5d4a699c82ac/bin/uautomizer-ZXIjhQolGL/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-19 04:35:06,109 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2160eeb-bf7f-4ecc-b998-5d4a699c82ac/bin/uautomizer-ZXIjhQolGL/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (32)] Waiting until timeout for monitored process [2021-11-19 04:35:06,109 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 [2021-11-19 04:35:06,118 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-19 04:35:06,119 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-19 04:35:06,119 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-19 04:35:06,119 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-19 04:35:06,121 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-11-19 04:35:06,121 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-11-19 04:35:06,141 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-11-19 04:35:06,188 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2160eeb-bf7f-4ecc-b998-5d4a699c82ac/bin/uautomizer-ZXIjhQolGL/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (32)] Forceful destruction successful, exit code 0 [2021-11-19 04:35:06,189 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-19 04:35:06,189 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2160eeb-bf7f-4ecc-b998-5d4a699c82ac/bin/uautomizer-ZXIjhQolGL/z3 [2021-11-19 04:35:06,191 INFO L229 MonitoredProcess]: Starting monitored process 33 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2160eeb-bf7f-4ecc-b998-5d4a699c82ac/bin/uautomizer-ZXIjhQolGL/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-19 04:35:06,196 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 [2021-11-19 04:35:06,206 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2160eeb-bf7f-4ecc-b998-5d4a699c82ac/bin/uautomizer-ZXIjhQolGL/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (33)] Waiting until timeout for monitored process [2021-11-19 04:35:06,206 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-19 04:35:06,206 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-11-19 04:35:06,207 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-19 04:35:06,207 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-19 04:35:06,207 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-19 04:35:06,207 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-11-19 04:35:06,207 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-11-19 04:35:06,208 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-11-19 04:35:06,235 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2160eeb-bf7f-4ecc-b998-5d4a699c82ac/bin/uautomizer-ZXIjhQolGL/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (33)] Ended with exit code 0 [2021-11-19 04:35:06,236 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-19 04:35:06,236 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2160eeb-bf7f-4ecc-b998-5d4a699c82ac/bin/uautomizer-ZXIjhQolGL/z3 [2021-11-19 04:35:06,237 INFO L229 MonitoredProcess]: Starting monitored process 34 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2160eeb-bf7f-4ecc-b998-5d4a699c82ac/bin/uautomizer-ZXIjhQolGL/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-19 04:35:06,238 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2160eeb-bf7f-4ecc-b998-5d4a699c82ac/bin/uautomizer-ZXIjhQolGL/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (34)] Waiting until timeout for monitored process [2021-11-19 04:35:06,238 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 [2021-11-19 04:35:06,247 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-19 04:35:06,248 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-19 04:35:06,248 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-19 04:35:06,248 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-19 04:35:06,249 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-11-19 04:35:06,249 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-11-19 04:35:06,279 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-11-19 04:35:06,307 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2160eeb-bf7f-4ecc-b998-5d4a699c82ac/bin/uautomizer-ZXIjhQolGL/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (34)] Forceful destruction successful, exit code 0 [2021-11-19 04:35:06,307 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-19 04:35:06,307 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2160eeb-bf7f-4ecc-b998-5d4a699c82ac/bin/uautomizer-ZXIjhQolGL/z3 [2021-11-19 04:35:06,308 INFO L229 MonitoredProcess]: Starting monitored process 35 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2160eeb-bf7f-4ecc-b998-5d4a699c82ac/bin/uautomizer-ZXIjhQolGL/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-19 04:35:06,310 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2160eeb-bf7f-4ecc-b998-5d4a699c82ac/bin/uautomizer-ZXIjhQolGL/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (35)] Waiting until timeout for monitored process [2021-11-19 04:35:06,311 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 [2021-11-19 04:35:06,320 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-19 04:35:06,320 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-11-19 04:35:06,320 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-19 04:35:06,320 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-19 04:35:06,320 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-19 04:35:06,321 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-11-19 04:35:06,321 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-11-19 04:35:06,322 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-11-19 04:35:06,348 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2160eeb-bf7f-4ecc-b998-5d4a699c82ac/bin/uautomizer-ZXIjhQolGL/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (35)] Forceful destruction successful, exit code 0 [2021-11-19 04:35:06,349 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-19 04:35:06,349 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2160eeb-bf7f-4ecc-b998-5d4a699c82ac/bin/uautomizer-ZXIjhQolGL/z3 [2021-11-19 04:35:06,351 INFO L229 MonitoredProcess]: Starting monitored process 36 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2160eeb-bf7f-4ecc-b998-5d4a699c82ac/bin/uautomizer-ZXIjhQolGL/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-19 04:35:06,352 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2160eeb-bf7f-4ecc-b998-5d4a699c82ac/bin/uautomizer-ZXIjhQolGL/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (36)] Waiting until timeout for monitored process [2021-11-19 04:35:06,353 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 [2021-11-19 04:35:06,362 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-19 04:35:06,362 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-11-19 04:35:06,363 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-19 04:35:06,363 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-19 04:35:06,363 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-19 04:35:06,363 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-11-19 04:35:06,364 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-11-19 04:35:06,365 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-11-19 04:35:06,389 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2160eeb-bf7f-4ecc-b998-5d4a699c82ac/bin/uautomizer-ZXIjhQolGL/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (36)] Ended with exit code 0 [2021-11-19 04:35:06,390 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-19 04:35:06,390 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2160eeb-bf7f-4ecc-b998-5d4a699c82ac/bin/uautomizer-ZXIjhQolGL/z3 [2021-11-19 04:35:06,391 INFO L229 MonitoredProcess]: Starting monitored process 37 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2160eeb-bf7f-4ecc-b998-5d4a699c82ac/bin/uautomizer-ZXIjhQolGL/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-19 04:35:06,393 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2160eeb-bf7f-4ecc-b998-5d4a699c82ac/bin/uautomizer-ZXIjhQolGL/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (37)] Waiting until timeout for monitored process [2021-11-19 04:35:06,394 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 [2021-11-19 04:35:06,403 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-19 04:35:06,403 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-11-19 04:35:06,403 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-19 04:35:06,403 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-19 04:35:06,404 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-19 04:35:06,404 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-11-19 04:35:06,404 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-11-19 04:35:06,405 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-11-19 04:35:06,431 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2160eeb-bf7f-4ecc-b998-5d4a699c82ac/bin/uautomizer-ZXIjhQolGL/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (37)] Forceful destruction successful, exit code 0 [2021-11-19 04:35:06,432 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-19 04:35:06,432 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2160eeb-bf7f-4ecc-b998-5d4a699c82ac/bin/uautomizer-ZXIjhQolGL/z3 [2021-11-19 04:35:06,440 INFO L229 MonitoredProcess]: Starting monitored process 38 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2160eeb-bf7f-4ecc-b998-5d4a699c82ac/bin/uautomizer-ZXIjhQolGL/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-19 04:35:06,460 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 [2021-11-19 04:35:06,471 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-19 04:35:06,472 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-11-19 04:35:06,472 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-19 04:35:06,472 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-19 04:35:06,472 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-19 04:35:06,473 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-11-19 04:35:06,473 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-11-19 04:35:06,474 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2160eeb-bf7f-4ecc-b998-5d4a699c82ac/bin/uautomizer-ZXIjhQolGL/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (38)] Waiting until timeout for monitored process [2021-11-19 04:35:06,487 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-11-19 04:35:06,535 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2160eeb-bf7f-4ecc-b998-5d4a699c82ac/bin/uautomizer-ZXIjhQolGL/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (38)] Forceful destruction successful, exit code 0 [2021-11-19 04:35:06,535 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-19 04:35:06,535 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2160eeb-bf7f-4ecc-b998-5d4a699c82ac/bin/uautomizer-ZXIjhQolGL/z3 [2021-11-19 04:35:06,537 INFO L229 MonitoredProcess]: Starting monitored process 39 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2160eeb-bf7f-4ecc-b998-5d4a699c82ac/bin/uautomizer-ZXIjhQolGL/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-19 04:35:06,541 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 [2021-11-19 04:35:06,553 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-19 04:35:06,553 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-11-19 04:35:06,553 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-19 04:35:06,553 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-19 04:35:06,553 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-19 04:35:06,554 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-11-19 04:35:06,554 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-11-19 04:35:06,556 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2160eeb-bf7f-4ecc-b998-5d4a699c82ac/bin/uautomizer-ZXIjhQolGL/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (39)] Waiting until timeout for monitored process [2021-11-19 04:35:06,567 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-11-19 04:35:06,614 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2160eeb-bf7f-4ecc-b998-5d4a699c82ac/bin/uautomizer-ZXIjhQolGL/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (39)] Forceful destruction successful, exit code 0 [2021-11-19 04:35:06,615 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-19 04:35:06,615 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2160eeb-bf7f-4ecc-b998-5d4a699c82ac/bin/uautomizer-ZXIjhQolGL/z3 [2021-11-19 04:35:06,616 INFO L229 MonitoredProcess]: Starting monitored process 40 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2160eeb-bf7f-4ecc-b998-5d4a699c82ac/bin/uautomizer-ZXIjhQolGL/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-19 04:35:06,626 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2160eeb-bf7f-4ecc-b998-5d4a699c82ac/bin/uautomizer-ZXIjhQolGL/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (40)] Waiting until timeout for monitored process [2021-11-19 04:35:06,626 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 [2021-11-19 04:35:06,638 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-19 04:35:06,638 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-19 04:35:06,638 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-19 04:35:06,638 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-19 04:35:06,648 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-11-19 04:35:06,648 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-11-19 04:35:06,675 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-11-19 04:35:06,716 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2160eeb-bf7f-4ecc-b998-5d4a699c82ac/bin/uautomizer-ZXIjhQolGL/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (40)] Forceful destruction successful, exit code 0 [2021-11-19 04:35:06,717 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-19 04:35:06,717 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2160eeb-bf7f-4ecc-b998-5d4a699c82ac/bin/uautomizer-ZXIjhQolGL/z3 [2021-11-19 04:35:06,718 INFO L229 MonitoredProcess]: Starting monitored process 41 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2160eeb-bf7f-4ecc-b998-5d4a699c82ac/bin/uautomizer-ZXIjhQolGL/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-19 04:35:06,726 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 [2021-11-19 04:35:06,737 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-19 04:35:06,737 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-19 04:35:06,738 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-19 04:35:06,738 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-19 04:35:06,740 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-11-19 04:35:06,740 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-11-19 04:35:06,743 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2160eeb-bf7f-4ecc-b998-5d4a699c82ac/bin/uautomizer-ZXIjhQolGL/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (41)] Waiting until timeout for monitored process [2021-11-19 04:35:06,751 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-11-19 04:35:06,792 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2160eeb-bf7f-4ecc-b998-5d4a699c82ac/bin/uautomizer-ZXIjhQolGL/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (41)] Forceful destruction successful, exit code 0 [2021-11-19 04:35:06,793 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-19 04:35:06,793 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2160eeb-bf7f-4ecc-b998-5d4a699c82ac/bin/uautomizer-ZXIjhQolGL/z3 [2021-11-19 04:35:06,794 INFO L229 MonitoredProcess]: Starting monitored process 42 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2160eeb-bf7f-4ecc-b998-5d4a699c82ac/bin/uautomizer-ZXIjhQolGL/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-19 04:35:06,800 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 [2021-11-19 04:35:06,811 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-19 04:35:06,811 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-19 04:35:06,811 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-19 04:35:06,812 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-19 04:35:06,813 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-11-19 04:35:06,813 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-11-19 04:35:06,817 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2160eeb-bf7f-4ecc-b998-5d4a699c82ac/bin/uautomizer-ZXIjhQolGL/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (42)] Waiting until timeout for monitored process [2021-11-19 04:35:06,827 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-11-19 04:35:06,871 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2160eeb-bf7f-4ecc-b998-5d4a699c82ac/bin/uautomizer-ZXIjhQolGL/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (42)] Forceful destruction successful, exit code 0 [2021-11-19 04:35:06,872 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-19 04:35:06,872 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2160eeb-bf7f-4ecc-b998-5d4a699c82ac/bin/uautomizer-ZXIjhQolGL/z3 [2021-11-19 04:35:06,873 INFO L229 MonitoredProcess]: Starting monitored process 43 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2160eeb-bf7f-4ecc-b998-5d4a699c82ac/bin/uautomizer-ZXIjhQolGL/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-19 04:35:06,876 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 [2021-11-19 04:35:06,889 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-19 04:35:06,889 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-19 04:35:06,889 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-19 04:35:06,889 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-19 04:35:06,895 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2160eeb-bf7f-4ecc-b998-5d4a699c82ac/bin/uautomizer-ZXIjhQolGL/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (43)] Waiting until timeout for monitored process [2021-11-19 04:35:06,917 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-11-19 04:35:06,917 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-11-19 04:35:06,952 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2021-11-19 04:35:06,997 INFO L443 ModelExtractionUtils]: Simplification made 7 calls to the SMT solver. [2021-11-19 04:35:06,997 INFO L444 ModelExtractionUtils]: 19 out of 58 variables were initially zero. Simplification set additionally 36 variables to zero. [2021-11-19 04:35:06,997 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-19 04:35:06,997 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2160eeb-bf7f-4ecc-b998-5d4a699c82ac/bin/uautomizer-ZXIjhQolGL/z3 [2021-11-19 04:35:06,999 INFO L229 MonitoredProcess]: Starting monitored process 44 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2160eeb-bf7f-4ecc-b998-5d4a699c82ac/bin/uautomizer-ZXIjhQolGL/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-19 04:35:07,006 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2160eeb-bf7f-4ecc-b998-5d4a699c82ac/bin/uautomizer-ZXIjhQolGL/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (44)] Waiting until timeout for monitored process [2021-11-19 04:35:07,006 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2021-11-19 04:35:07,017 INFO L438 nArgumentSynthesizer]: Removed 2 redundant supporting invariants from a total of 2. [2021-11-19 04:35:07,017 INFO L513 LassoAnalysis]: Proved termination. [2021-11-19 04:35:07,017 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_cstrspn_~s~0#1.offset, v_rep(select #length ULTIMATE.start_cstrspn_~s~0#1.base)_2) = -1*ULTIMATE.start_cstrspn_~s~0#1.offset + 1*v_rep(select #length ULTIMATE.start_cstrspn_~s~0#1.base)_2 Supporting invariants [] [2021-11-19 04:35:07,044 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2160eeb-bf7f-4ecc-b998-5d4a699c82ac/bin/uautomizer-ZXIjhQolGL/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (43)] Ended with exit code 0 [2021-11-19 04:35:07,148 INFO L297 tatePredicateManager]: 26 out of 26 supporting invariants were superfluous and have been removed [2021-11-19 04:35:07,161 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 04:35:07,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 04:35:07,190 INFO L263 TraceCheckSpWp]: Trace formula consists of 102 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-19 04:35:07,191 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 04:35:07,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 04:35:07,251 INFO L263 TraceCheckSpWp]: Trace formula consists of 22 conjuncts, 6 conjunts are in the unsatisfiable core [2021-11-19 04:35:07,252 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 04:35:07,288 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-19 04:35:07,288 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 [2021-11-19 04:35:07,289 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 26 states and 33 transitions. cyclomatic complexity: 11 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) [2021-11-19 04:35:07,315 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 26 states and 33 transitions. cyclomatic complexity: 11. 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 51 states and 61 transitions. Complement of second has 5 states. [2021-11-19 04:35:07,316 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 [2021-11-19 04:35:07,317 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) [2021-11-19 04:35:07,318 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 25 transitions. [2021-11-19 04:35:07,318 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 25 transitions. Stem has 15 letters. Loop has 3 letters. [2021-11-19 04:35:07,319 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-11-19 04:35:07,319 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 25 transitions. Stem has 18 letters. Loop has 3 letters. [2021-11-19 04:35:07,322 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-11-19 04:35:07,322 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 25 transitions. Stem has 15 letters. Loop has 6 letters. [2021-11-19 04:35:07,322 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-11-19 04:35:07,323 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 51 states and 61 transitions. [2021-11-19 04:35:07,327 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2021-11-19 04:35:07,329 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 51 states to 38 states and 46 transitions. [2021-11-19 04:35:07,329 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 15 [2021-11-19 04:35:07,329 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 15 [2021-11-19 04:35:07,330 INFO L73 IsDeterministic]: Start isDeterministic. Operand 38 states and 46 transitions. [2021-11-19 04:35:07,336 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2021-11-19 04:35:07,337 INFO L681 BuchiCegarLoop]: Abstraction has 38 states and 46 transitions. [2021-11-19 04:35:07,337 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 38 states and 46 transitions. [2021-11-19 04:35:07,340 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 38 to 32. [2021-11-19 04:35:07,344 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 32 states, 32 states have (on average 1.21875) internal successors, (39), 31 states have internal predecessors, (39), 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) [2021-11-19 04:35:07,344 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32 states to 32 states and 39 transitions. [2021-11-19 04:35:07,348 INFO L704 BuchiCegarLoop]: Abstraction has 32 states and 39 transitions. [2021-11-19 04:35:07,348 INFO L587 BuchiCegarLoop]: Abstraction has 32 states and 39 transitions. [2021-11-19 04:35:07,349 INFO L425 BuchiCegarLoop]: ======== Iteration 11============ [2021-11-19 04:35:07,349 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 32 states and 39 transitions. [2021-11-19 04:35:07,349 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2021-11-19 04:35:07,352 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-11-19 04:35:07,352 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-11-19 04:35:07,353 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-19 04:35:07,353 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2021-11-19 04:35:07,354 INFO L791 eck$LassoCheckResult]: Stem: 1360#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier; 1361#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet10#1, main_#t~nondet11#1, main_#t~malloc12#1.base, main_#t~malloc12#1.offset, main_#t~malloc13#1.base, main_#t~malloc13#1.offset, main_#t~nondet15#1, main_#t~post14#1, main_~i~0#1, main_#t~nondet17#1, main_#t~post16#1, main_~i~1#1, main_#t~ret18#1, main_~length1~0#1, main_~length2~0#1, main_~nondetString1~0#1.base, main_~nondetString1~0#1.offset, main_~nondetString2~0#1.base, main_~nondetString2~0#1.offset;main_~length1~0#1 := main_#t~nondet10#1;havoc main_#t~nondet10#1;main_~length2~0#1 := main_#t~nondet11#1;havoc main_#t~nondet11#1; 1369#L532 assume !(main_~length1~0#1 < 1); 1362#L532-2 assume !(main_~length2~0#1 < 1); 1358#L535-1 call main_#t~malloc12#1.base, main_#t~malloc12#1.offset := #Ultimate.allocOnStack(main_~length1~0#1);main_~nondetString1~0#1.base, main_~nondetString1~0#1.offset := main_#t~malloc12#1.base, main_#t~malloc12#1.offset;call main_#t~malloc13#1.base, main_#t~malloc13#1.offset := #Ultimate.allocOnStack(main_~length2~0#1);main_~nondetString2~0#1.base, main_~nondetString2~0#1.offset := main_#t~malloc13#1.base, main_#t~malloc13#1.offset;main_~i~0#1 := 0; 1359#L541-3 assume !!(main_~i~0#1 < main_~length1~0#1 - 1);call write~int(main_#t~nondet15#1, main_~nondetString1~0#1.base, main_~nondetString1~0#1.offset + main_~i~0#1, 1);havoc main_#t~nondet15#1; 1378#L541-2 main_#t~post14#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post14#1;havoc main_#t~post14#1; 1379#L541-3 assume !(main_~i~0#1 < main_~length1~0#1 - 1); 1370#L541-4 main_~i~1#1 := 0; 1365#L546-3 assume !!(main_~i~1#1 < main_~length2~0#1 - 1);call write~int(main_#t~nondet17#1, main_~nondetString2~0#1.base, main_~nondetString2~0#1.offset + main_~i~1#1, 1);havoc main_#t~nondet17#1; 1366#L546-2 main_#t~post16#1 := main_~i~1#1;main_~i~1#1 := 1 + main_#t~post16#1;havoc main_#t~post16#1; 1367#L546-3 assume !(main_~i~1#1 < main_~length2~0#1 - 1); 1368#L546-4 call write~int(0, main_~nondetString1~0#1.base, main_~nondetString1~0#1.offset + (main_~length1~0#1 - 1), 1);call write~int(0, main_~nondetString2~0#1.base, main_~nondetString2~0#1.offset + (main_~length2~0#1 - 1), 1);assume { :begin_inline_cstrspn } true;cstrspn_#in~s1#1.base, cstrspn_#in~s1#1.offset, cstrspn_#in~s2#1.base, cstrspn_#in~s2#1.offset := main_~nondetString1~0#1.base, main_~nondetString1~0#1.offset, main_~nondetString2~0#1.base, main_~nondetString2~0#1.offset;havoc cstrspn_#res#1;havoc cstrspn_#t~mem4#1, cstrspn_#t~post8#1.base, cstrspn_#t~post8#1.offset, cstrspn_#t~mem5#1, cstrspn_#t~mem6#1, cstrspn_#t~short7#1, cstrspn_#t~mem9#1, cstrspn_#t~post2#1.base, cstrspn_#t~post2#1.offset, cstrspn_#t~mem3#1, cstrspn_~s1#1.base, cstrspn_~s1#1.offset, cstrspn_~s2#1.base, cstrspn_~s2#1.offset, cstrspn_~sc1~0#1.base, cstrspn_~sc1~0#1.offset, cstrspn_~s~0#1.base, cstrspn_~s~0#1.offset, cstrspn_~c~0#1;cstrspn_~s1#1.base, cstrspn_~s1#1.offset := cstrspn_#in~s1#1.base, cstrspn_#in~s1#1.offset;cstrspn_~s2#1.base, cstrspn_~s2#1.offset := cstrspn_#in~s2#1.base, cstrspn_#in~s2#1.offset;havoc cstrspn_~sc1~0#1.base, cstrspn_~sc1~0#1.offset;havoc cstrspn_~s~0#1.base, cstrspn_~s~0#1.offset;havoc cstrspn_~c~0#1;cstrspn_~sc1~0#1.base, cstrspn_~sc1~0#1.offset := cstrspn_~s1#1.base, cstrspn_~s1#1.offset; 1371#L519-4 call cstrspn_#t~mem3#1 := read~int(cstrspn_~sc1~0#1.base, cstrspn_~sc1~0#1.offset, 1); 1380#L519-1 assume !!(0 != cstrspn_#t~mem3#1);havoc cstrspn_#t~mem3#1;cstrspn_~s~0#1.base, cstrspn_~s~0#1.offset := cstrspn_~s2#1.base, cstrspn_~s2#1.offset;call cstrspn_#t~mem4#1 := read~int(cstrspn_~sc1~0#1.base, cstrspn_~sc1~0#1.offset, 1);cstrspn_~c~0#1 := cstrspn_#t~mem4#1;havoc cstrspn_#t~mem4#1; 1375#L522-5 call cstrspn_#t~mem5#1 := read~int(cstrspn_~s~0#1.base, cstrspn_~s~0#1.offset, 1);cstrspn_#t~short7#1 := 0 != cstrspn_#t~mem5#1; 1389#L522-1 assume cstrspn_#t~short7#1;call cstrspn_#t~mem6#1 := read~int(cstrspn_~s~0#1.base, cstrspn_~s~0#1.offset, 1);cstrspn_#t~short7#1 := cstrspn_#t~mem6#1 != (if cstrspn_~c~0#1 % 256 <= 127 then cstrspn_~c~0#1 % 256 else cstrspn_~c~0#1 % 256 - 256); 1387#L522-3 assume !cstrspn_#t~short7#1;havoc cstrspn_#t~mem5#1;havoc cstrspn_#t~mem6#1;havoc cstrspn_#t~short7#1; 1363#L522-6 call cstrspn_#t~mem9#1 := read~int(cstrspn_~s~0#1.base, cstrspn_~s~0#1.offset, 1); 1364#L524 assume !(cstrspn_#t~mem9#1 != cstrspn_~c~0#1);havoc cstrspn_#t~mem9#1; 1376#L519-3 cstrspn_#t~post2#1.base, cstrspn_#t~post2#1.offset := cstrspn_~sc1~0#1.base, cstrspn_~sc1~0#1.offset;cstrspn_~sc1~0#1.base, cstrspn_~sc1~0#1.offset := cstrspn_#t~post2#1.base, 1 + cstrspn_#t~post2#1.offset;havoc cstrspn_#t~post2#1.base, cstrspn_#t~post2#1.offset; 1377#L519-4 call cstrspn_#t~mem3#1 := read~int(cstrspn_~sc1~0#1.base, cstrspn_~sc1~0#1.offset, 1); 1382#L519-1 assume !!(0 != cstrspn_#t~mem3#1);havoc cstrspn_#t~mem3#1;cstrspn_~s~0#1.base, cstrspn_~s~0#1.offset := cstrspn_~s2#1.base, cstrspn_~s2#1.offset;call cstrspn_#t~mem4#1 := read~int(cstrspn_~sc1~0#1.base, cstrspn_~sc1~0#1.offset, 1);cstrspn_~c~0#1 := cstrspn_#t~mem4#1;havoc cstrspn_#t~mem4#1; 1373#L522-5 [2021-11-19 04:35:07,354 INFO L793 eck$LassoCheckResult]: Loop: 1373#L522-5 call cstrspn_#t~mem5#1 := read~int(cstrspn_~s~0#1.base, cstrspn_~s~0#1.offset, 1);cstrspn_#t~short7#1 := 0 != cstrspn_#t~mem5#1; 1383#L522-1 assume cstrspn_#t~short7#1;call cstrspn_#t~mem6#1 := read~int(cstrspn_~s~0#1.base, cstrspn_~s~0#1.offset, 1);cstrspn_#t~short7#1 := cstrspn_#t~mem6#1 != (if cstrspn_~c~0#1 % 256 <= 127 then cstrspn_~c~0#1 % 256 else cstrspn_~c~0#1 % 256 - 256); 1372#L522-3 assume !!cstrspn_#t~short7#1;havoc cstrspn_#t~mem5#1;havoc cstrspn_#t~mem6#1;havoc cstrspn_#t~short7#1;cstrspn_#t~post8#1.base, cstrspn_#t~post8#1.offset := cstrspn_~s~0#1.base, cstrspn_~s~0#1.offset;cstrspn_~s~0#1.base, cstrspn_~s~0#1.offset := cstrspn_#t~post8#1.base, 1 + cstrspn_#t~post8#1.offset;havoc cstrspn_#t~post8#1.base, cstrspn_#t~post8#1.offset; 1373#L522-5 [2021-11-19 04:35:07,354 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 04:35:07,354 INFO L85 PathProgramCache]: Analyzing trace with hash 1742810479, now seen corresponding path program 2 times [2021-11-19 04:35:07,354 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-19 04:35:07,354 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [753342681] [2021-11-19 04:35:07,354 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 04:35:07,355 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-19 04:35:07,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 04:35:07,497 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2160eeb-bf7f-4ecc-b998-5d4a699c82ac/bin/uautomizer-ZXIjhQolGL/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (44)] Forceful destruction successful, exit code 0 [2021-11-19 04:35:07,728 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-11-19 04:35:07,728 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-19 04:35:07,728 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [753342681] [2021-11-19 04:35:07,728 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [753342681] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-19 04:35:07,729 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [317180321] [2021-11-19 04:35:07,729 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-11-19 04:35:07,729 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-19 04:35:07,729 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2160eeb-bf7f-4ecc-b998-5d4a699c82ac/bin/uautomizer-ZXIjhQolGL/z3 [2021-11-19 04:35:07,730 INFO L229 MonitoredProcess]: Starting monitored process 45 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2160eeb-bf7f-4ecc-b998-5d4a699c82ac/bin/uautomizer-ZXIjhQolGL/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-19 04:35:07,755 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2160eeb-bf7f-4ecc-b998-5d4a699c82ac/bin/uautomizer-ZXIjhQolGL/z3 -smt2 -in SMTLIB2_COMPLIANT=true (45)] Waiting until timeout for monitored process [2021-11-19 04:35:07,819 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-11-19 04:35:07,819 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-19 04:35:07,821 INFO L263 TraceCheckSpWp]: Trace formula consists of 147 conjuncts, 35 conjunts are in the unsatisfiable core [2021-11-19 04:35:07,823 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 04:35:07,848 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 8 [2021-11-19 04:35:08,046 INFO L354 Elim1Store]: treesize reduction 31, result has 18.4 percent of original size [2021-11-19 04:35:08,047 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 1 case distinctions, treesize of input 35 treesize of output 22 [2021-11-19 04:35:08,345 INFO L354 Elim1Store]: treesize reduction 14, result has 6.7 percent of original size [2021-11-19 04:35:08,346 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 29 treesize of output 14 [2021-11-19 04:35:08,360 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-11-19 04:35:08,361 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 04:35:08,436 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 56 treesize of output 50 [2021-11-19 04:35:08,583 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-11-19 04:35:08,584 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [317180321] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-19 04:35:08,584 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-11-19 04:35:08,584 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8, 8] total 20 [2021-11-19 04:35:08,585 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [990091030] [2021-11-19 04:35:08,585 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-11-19 04:35:08,585 INFO L796 eck$LassoCheckResult]: stem already infeasible [2021-11-19 04:35:08,586 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 04:35:08,586 INFO L85 PathProgramCache]: Analyzing trace with hash 86496, now seen corresponding path program 3 times [2021-11-19 04:35:08,586 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-19 04:35:08,587 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [856319622] [2021-11-19 04:35:08,587 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 04:35:08,587 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-19 04:35:08,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-19 04:35:08,592 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-19 04:35:08,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-19 04:35:08,597 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-11-19 04:35:08,727 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-19 04:35:08,728 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2021-11-19 04:35:08,729 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=72, Invalid=348, Unknown=0, NotChecked=0, Total=420 [2021-11-19 04:35:08,729 INFO L87 Difference]: Start difference. First operand 32 states and 39 transitions. cyclomatic complexity: 12 Second operand has 21 states, 20 states have (on average 2.8) internal successors, (56), 21 states have internal predecessors, (56), 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) [2021-11-19 04:35:08,900 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 04:35:08,900 INFO L93 Difference]: Finished difference Result 53 states and 62 transitions. [2021-11-19 04:35:08,901 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-11-19 04:35:08,901 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 53 states and 62 transitions. [2021-11-19 04:35:08,903 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2021-11-19 04:35:08,903 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 53 states to 35 states and 42 transitions. [2021-11-19 04:35:08,904 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 14 [2021-11-19 04:35:08,904 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 14 [2021-11-19 04:35:08,904 INFO L73 IsDeterministic]: Start isDeterministic. Operand 35 states and 42 transitions. [2021-11-19 04:35:08,904 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2021-11-19 04:35:08,905 INFO L681 BuchiCegarLoop]: Abstraction has 35 states and 42 transitions. [2021-11-19 04:35:08,905 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35 states and 42 transitions. [2021-11-19 04:35:08,906 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35 to 34. [2021-11-19 04:35:08,907 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 34 states, 34 states have (on average 1.2058823529411764) internal successors, (41), 33 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) [2021-11-19 04:35:08,907 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34 states to 34 states and 41 transitions. [2021-11-19 04:35:08,908 INFO L704 BuchiCegarLoop]: Abstraction has 34 states and 41 transitions. [2021-11-19 04:35:08,908 INFO L587 BuchiCegarLoop]: Abstraction has 34 states and 41 transitions. [2021-11-19 04:35:08,908 INFO L425 BuchiCegarLoop]: ======== Iteration 12============ [2021-11-19 04:35:08,908 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 34 states and 41 transitions. [2021-11-19 04:35:08,909 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2021-11-19 04:35:08,909 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-11-19 04:35:08,909 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-11-19 04:35:08,910 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-19 04:35:08,910 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2021-11-19 04:35:08,911 INFO L791 eck$LassoCheckResult]: Stem: 1605#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier; 1606#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet10#1, main_#t~nondet11#1, main_#t~malloc12#1.base, main_#t~malloc12#1.offset, main_#t~malloc13#1.base, main_#t~malloc13#1.offset, main_#t~nondet15#1, main_#t~post14#1, main_~i~0#1, main_#t~nondet17#1, main_#t~post16#1, main_~i~1#1, main_#t~ret18#1, main_~length1~0#1, main_~length2~0#1, main_~nondetString1~0#1.base, main_~nondetString1~0#1.offset, main_~nondetString2~0#1.base, main_~nondetString2~0#1.offset;main_~length1~0#1 := main_#t~nondet10#1;havoc main_#t~nondet10#1;main_~length2~0#1 := main_#t~nondet11#1;havoc main_#t~nondet11#1; 1614#L532 assume !(main_~length1~0#1 < 1); 1607#L532-2 assume !(main_~length2~0#1 < 1); 1603#L535-1 call main_#t~malloc12#1.base, main_#t~malloc12#1.offset := #Ultimate.allocOnStack(main_~length1~0#1);main_~nondetString1~0#1.base, main_~nondetString1~0#1.offset := main_#t~malloc12#1.base, main_#t~malloc12#1.offset;call main_#t~malloc13#1.base, main_#t~malloc13#1.offset := #Ultimate.allocOnStack(main_~length2~0#1);main_~nondetString2~0#1.base, main_~nondetString2~0#1.offset := main_#t~malloc13#1.base, main_#t~malloc13#1.offset;main_~i~0#1 := 0; 1604#L541-3 assume !!(main_~i~0#1 < main_~length1~0#1 - 1);call write~int(main_#t~nondet15#1, main_~nondetString1~0#1.base, main_~nondetString1~0#1.offset + main_~i~0#1, 1);havoc main_#t~nondet15#1; 1623#L541-2 main_#t~post14#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post14#1;havoc main_#t~post14#1; 1624#L541-3 assume !!(main_~i~0#1 < main_~length1~0#1 - 1);call write~int(main_#t~nondet15#1, main_~nondetString1~0#1.base, main_~nondetString1~0#1.offset + main_~i~0#1, 1);havoc main_#t~nondet15#1; 1625#L541-2 main_#t~post14#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post14#1;havoc main_#t~post14#1; 1634#L541-3 assume !(main_~i~0#1 < main_~length1~0#1 - 1); 1615#L541-4 main_~i~1#1 := 0; 1610#L546-3 assume !!(main_~i~1#1 < main_~length2~0#1 - 1);call write~int(main_#t~nondet17#1, main_~nondetString2~0#1.base, main_~nondetString2~0#1.offset + main_~i~1#1, 1);havoc main_#t~nondet17#1; 1611#L546-2 main_#t~post16#1 := main_~i~1#1;main_~i~1#1 := 1 + main_#t~post16#1;havoc main_#t~post16#1; 1612#L546-3 assume !(main_~i~1#1 < main_~length2~0#1 - 1); 1613#L546-4 call write~int(0, main_~nondetString1~0#1.base, main_~nondetString1~0#1.offset + (main_~length1~0#1 - 1), 1);call write~int(0, main_~nondetString2~0#1.base, main_~nondetString2~0#1.offset + (main_~length2~0#1 - 1), 1);assume { :begin_inline_cstrspn } true;cstrspn_#in~s1#1.base, cstrspn_#in~s1#1.offset, cstrspn_#in~s2#1.base, cstrspn_#in~s2#1.offset := main_~nondetString1~0#1.base, main_~nondetString1~0#1.offset, main_~nondetString2~0#1.base, main_~nondetString2~0#1.offset;havoc cstrspn_#res#1;havoc cstrspn_#t~mem4#1, cstrspn_#t~post8#1.base, cstrspn_#t~post8#1.offset, cstrspn_#t~mem5#1, cstrspn_#t~mem6#1, cstrspn_#t~short7#1, cstrspn_#t~mem9#1, cstrspn_#t~post2#1.base, cstrspn_#t~post2#1.offset, cstrspn_#t~mem3#1, cstrspn_~s1#1.base, cstrspn_~s1#1.offset, cstrspn_~s2#1.base, cstrspn_~s2#1.offset, cstrspn_~sc1~0#1.base, cstrspn_~sc1~0#1.offset, cstrspn_~s~0#1.base, cstrspn_~s~0#1.offset, cstrspn_~c~0#1;cstrspn_~s1#1.base, cstrspn_~s1#1.offset := cstrspn_#in~s1#1.base, cstrspn_#in~s1#1.offset;cstrspn_~s2#1.base, cstrspn_~s2#1.offset := cstrspn_#in~s2#1.base, cstrspn_#in~s2#1.offset;havoc cstrspn_~sc1~0#1.base, cstrspn_~sc1~0#1.offset;havoc cstrspn_~s~0#1.base, cstrspn_~s~0#1.offset;havoc cstrspn_~c~0#1;cstrspn_~sc1~0#1.base, cstrspn_~sc1~0#1.offset := cstrspn_~s1#1.base, cstrspn_~s1#1.offset; 1616#L519-4 call cstrspn_#t~mem3#1 := read~int(cstrspn_~sc1~0#1.base, cstrspn_~sc1~0#1.offset, 1); 1626#L519-1 assume !!(0 != cstrspn_#t~mem3#1);havoc cstrspn_#t~mem3#1;cstrspn_~s~0#1.base, cstrspn_~s~0#1.offset := cstrspn_~s2#1.base, cstrspn_~s2#1.offset;call cstrspn_#t~mem4#1 := read~int(cstrspn_~sc1~0#1.base, cstrspn_~sc1~0#1.offset, 1);cstrspn_~c~0#1 := cstrspn_#t~mem4#1;havoc cstrspn_#t~mem4#1; 1620#L522-5 call cstrspn_#t~mem5#1 := read~int(cstrspn_~s~0#1.base, cstrspn_~s~0#1.offset, 1);cstrspn_#t~short7#1 := 0 != cstrspn_#t~mem5#1; 1630#L522-1 assume cstrspn_#t~short7#1;call cstrspn_#t~mem6#1 := read~int(cstrspn_~s~0#1.base, cstrspn_~s~0#1.offset, 1);cstrspn_#t~short7#1 := cstrspn_#t~mem6#1 != (if cstrspn_~c~0#1 % 256 <= 127 then cstrspn_~c~0#1 % 256 else cstrspn_~c~0#1 % 256 - 256); 1631#L522-3 assume !cstrspn_#t~short7#1;havoc cstrspn_#t~mem5#1;havoc cstrspn_#t~mem6#1;havoc cstrspn_#t~short7#1; 1608#L522-6 call cstrspn_#t~mem9#1 := read~int(cstrspn_~s~0#1.base, cstrspn_~s~0#1.offset, 1); 1609#L524 assume !(cstrspn_#t~mem9#1 != cstrspn_~c~0#1);havoc cstrspn_#t~mem9#1; 1621#L519-3 cstrspn_#t~post2#1.base, cstrspn_#t~post2#1.offset := cstrspn_~sc1~0#1.base, cstrspn_~sc1~0#1.offset;cstrspn_~sc1~0#1.base, cstrspn_~sc1~0#1.offset := cstrspn_#t~post2#1.base, 1 + cstrspn_#t~post2#1.offset;havoc cstrspn_#t~post2#1.base, cstrspn_#t~post2#1.offset; 1622#L519-4 call cstrspn_#t~mem3#1 := read~int(cstrspn_~sc1~0#1.base, cstrspn_~sc1~0#1.offset, 1); 1628#L519-1 assume !!(0 != cstrspn_#t~mem3#1);havoc cstrspn_#t~mem3#1;cstrspn_~s~0#1.base, cstrspn_~s~0#1.offset := cstrspn_~s2#1.base, cstrspn_~s2#1.offset;call cstrspn_#t~mem4#1 := read~int(cstrspn_~sc1~0#1.base, cstrspn_~sc1~0#1.offset, 1);cstrspn_~c~0#1 := cstrspn_#t~mem4#1;havoc cstrspn_#t~mem4#1; 1618#L522-5 [2021-11-19 04:35:08,911 INFO L793 eck$LassoCheckResult]: Loop: 1618#L522-5 call cstrspn_#t~mem5#1 := read~int(cstrspn_~s~0#1.base, cstrspn_~s~0#1.offset, 1);cstrspn_#t~short7#1 := 0 != cstrspn_#t~mem5#1; 1629#L522-1 assume cstrspn_#t~short7#1;call cstrspn_#t~mem6#1 := read~int(cstrspn_~s~0#1.base, cstrspn_~s~0#1.offset, 1);cstrspn_#t~short7#1 := cstrspn_#t~mem6#1 != (if cstrspn_~c~0#1 % 256 <= 127 then cstrspn_~c~0#1 % 256 else cstrspn_~c~0#1 % 256 - 256); 1617#L522-3 assume !!cstrspn_#t~short7#1;havoc cstrspn_#t~mem5#1;havoc cstrspn_#t~mem6#1;havoc cstrspn_#t~short7#1;cstrspn_#t~post8#1.base, cstrspn_#t~post8#1.offset := cstrspn_~s~0#1.base, cstrspn_~s~0#1.offset;cstrspn_~s~0#1.base, cstrspn_~s~0#1.offset := cstrspn_#t~post8#1.base, 1 + cstrspn_#t~post8#1.offset;havoc cstrspn_#t~post8#1.base, cstrspn_#t~post8#1.offset; 1618#L522-5 [2021-11-19 04:35:08,911 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 04:35:08,912 INFO L85 PathProgramCache]: Analyzing trace with hash -1365761455, now seen corresponding path program 3 times [2021-11-19 04:35:08,912 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-19 04:35:08,912 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [915354610] [2021-11-19 04:35:08,912 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 04:35:08,913 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-19 04:35:08,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-19 04:35:08,938 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-19 04:35:08,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-19 04:35:08,965 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-11-19 04:35:08,965 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 04:35:08,966 INFO L85 PathProgramCache]: Analyzing trace with hash 86496, now seen corresponding path program 4 times [2021-11-19 04:35:08,966 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-19 04:35:08,966 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1143669154] [2021-11-19 04:35:08,966 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 04:35:08,967 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-19 04:35:08,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-19 04:35:08,972 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-19 04:35:08,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-19 04:35:08,977 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-11-19 04:35:08,978 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 04:35:08,978 INFO L85 PathProgramCache]: Analyzing trace with hash -1174254192, now seen corresponding path program 1 times [2021-11-19 04:35:08,978 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-19 04:35:08,979 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2036490871] [2021-11-19 04:35:08,979 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 04:35:08,979 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-19 04:35:09,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-19 04:35:09,003 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-19 04:35:09,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-19 04:35:09,033 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-11-19 04:35:13,150 INFO L210 LassoAnalysis]: Preferences: [2021-11-19 04:35:13,150 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-11-19 04:35:13,151 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-11-19 04:35:13,151 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-11-19 04:35:13,151 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2021-11-19 04:35:13,151 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-19 04:35:13,151 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-11-19 04:35:13,151 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-11-19 04:35:13,151 INFO L133 ssoRankerPreferences]: Filename of dumped script: cstrspn-alloca-1.i_Iteration12_Lasso [2021-11-19 04:35:13,151 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-11-19 04:35:13,151 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-11-19 04:35:13,156 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-19 04:35:13,159 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-19 04:35:13,168 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-19 04:35:13,172 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-19 04:35:13,174 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-19 04:35:13,177 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-19 04:35:13,180 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-19 04:35:13,183 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-19 04:35:13,185 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-19 04:35:13,187 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-19 04:35:13,189 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-19 04:35:15,221 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-19 04:35:15,223 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-19 04:35:15,226 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-19 04:35:15,228 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-19 04:35:15,230 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-19 04:35:15,243 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-19 04:35:15,246 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-19 04:35:15,249 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-19 04:35:15,251 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-19 04:35:15,255 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-19 04:35:15,258 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-19 04:35:15,261 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-19 04:35:15,264 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-19 04:35:15,267 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-19 04:35:15,270 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-19 04:35:17,111 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-11-19 04:35:17,112 INFO L490 LassoAnalysis]: Using template 'affine'. [2021-11-19 04:35:17,112 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-19 04:35:17,112 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2160eeb-bf7f-4ecc-b998-5d4a699c82ac/bin/uautomizer-ZXIjhQolGL/z3 [2021-11-19 04:35:17,114 INFO L229 MonitoredProcess]: Starting monitored process 46 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2160eeb-bf7f-4ecc-b998-5d4a699c82ac/bin/uautomizer-ZXIjhQolGL/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-19 04:35:17,117 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-11-19 04:35:17,128 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-19 04:35:17,129 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-11-19 04:35:17,129 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-19 04:35:17,129 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-19 04:35:17,129 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-19 04:35:17,132 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-11-19 04:35:17,132 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-11-19 04:35:17,133 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2160eeb-bf7f-4ecc-b998-5d4a699c82ac/bin/uautomizer-ZXIjhQolGL/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (46)] Waiting until timeout for monitored process [2021-11-19 04:35:17,155 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-11-19 04:35:17,191 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2160eeb-bf7f-4ecc-b998-5d4a699c82ac/bin/uautomizer-ZXIjhQolGL/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (46)] Forceful destruction successful, exit code 0 [2021-11-19 04:35:17,191 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-19 04:35:17,192 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2160eeb-bf7f-4ecc-b998-5d4a699c82ac/bin/uautomizer-ZXIjhQolGL/z3 [2021-11-19 04:35:17,192 INFO L229 MonitoredProcess]: Starting monitored process 47 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2160eeb-bf7f-4ecc-b998-5d4a699c82ac/bin/uautomizer-ZXIjhQolGL/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-19 04:35:17,194 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2160eeb-bf7f-4ecc-b998-5d4a699c82ac/bin/uautomizer-ZXIjhQolGL/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (47)] Waiting until timeout for monitored process [2021-11-19 04:35:17,195 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 [2021-11-19 04:35:17,204 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-19 04:35:17,204 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-19 04:35:17,204 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-19 04:35:17,204 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-19 04:35:17,206 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-11-19 04:35:17,206 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-11-19 04:35:17,209 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-11-19 04:35:17,234 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2160eeb-bf7f-4ecc-b998-5d4a699c82ac/bin/uautomizer-ZXIjhQolGL/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (47)] Ended with exit code 0 [2021-11-19 04:35:17,235 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-19 04:35:17,235 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2160eeb-bf7f-4ecc-b998-5d4a699c82ac/bin/uautomizer-ZXIjhQolGL/z3 [2021-11-19 04:35:17,236 INFO L229 MonitoredProcess]: Starting monitored process 48 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2160eeb-bf7f-4ecc-b998-5d4a699c82ac/bin/uautomizer-ZXIjhQolGL/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-19 04:35:17,237 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2160eeb-bf7f-4ecc-b998-5d4a699c82ac/bin/uautomizer-ZXIjhQolGL/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (48)] Waiting until timeout for monitored process [2021-11-19 04:35:17,237 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 [2021-11-19 04:35:17,246 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-19 04:35:17,247 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-19 04:35:17,247 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-19 04:35:17,247 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-19 04:35:17,248 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-11-19 04:35:17,248 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-11-19 04:35:17,251 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-11-19 04:35:17,278 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2160eeb-bf7f-4ecc-b998-5d4a699c82ac/bin/uautomizer-ZXIjhQolGL/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (48)] Ended with exit code 0 [2021-11-19 04:35:17,278 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-19 04:35:17,278 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2160eeb-bf7f-4ecc-b998-5d4a699c82ac/bin/uautomizer-ZXIjhQolGL/z3 [2021-11-19 04:35:17,279 INFO L229 MonitoredProcess]: Starting monitored process 49 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2160eeb-bf7f-4ecc-b998-5d4a699c82ac/bin/uautomizer-ZXIjhQolGL/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-19 04:35:17,280 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2160eeb-bf7f-4ecc-b998-5d4a699c82ac/bin/uautomizer-ZXIjhQolGL/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (49)] Waiting until timeout for monitored process [2021-11-19 04:35:17,281 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 [2021-11-19 04:35:17,290 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-19 04:35:17,290 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-11-19 04:35:17,290 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-19 04:35:17,290 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-19 04:35:17,290 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-19 04:35:17,291 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-11-19 04:35:17,291 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-11-19 04:35:17,323 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-11-19 04:35:17,354 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2160eeb-bf7f-4ecc-b998-5d4a699c82ac/bin/uautomizer-ZXIjhQolGL/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (49)] Forceful destruction successful, exit code 0 [2021-11-19 04:35:17,354 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-19 04:35:17,354 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2160eeb-bf7f-4ecc-b998-5d4a699c82ac/bin/uautomizer-ZXIjhQolGL/z3 [2021-11-19 04:35:17,355 INFO L229 MonitoredProcess]: Starting monitored process 50 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2160eeb-bf7f-4ecc-b998-5d4a699c82ac/bin/uautomizer-ZXIjhQolGL/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-19 04:35:17,356 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2160eeb-bf7f-4ecc-b998-5d4a699c82ac/bin/uautomizer-ZXIjhQolGL/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (50)] Waiting until timeout for monitored process [2021-11-19 04:35:17,357 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 [2021-11-19 04:35:17,366 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-19 04:35:17,366 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-11-19 04:35:17,366 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-19 04:35:17,366 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-19 04:35:17,366 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-19 04:35:17,367 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-11-19 04:35:17,367 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-11-19 04:35:17,368 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-11-19 04:35:17,394 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2160eeb-bf7f-4ecc-b998-5d4a699c82ac/bin/uautomizer-ZXIjhQolGL/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (50)] Forceful destruction successful, exit code 0 [2021-11-19 04:35:17,394 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-19 04:35:17,394 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2160eeb-bf7f-4ecc-b998-5d4a699c82ac/bin/uautomizer-ZXIjhQolGL/z3 [2021-11-19 04:35:17,395 INFO L229 MonitoredProcess]: Starting monitored process 51 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2160eeb-bf7f-4ecc-b998-5d4a699c82ac/bin/uautomizer-ZXIjhQolGL/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-19 04:35:17,397 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 [2021-11-19 04:35:17,406 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2160eeb-bf7f-4ecc-b998-5d4a699c82ac/bin/uautomizer-ZXIjhQolGL/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (51)] Waiting until timeout for monitored process [2021-11-19 04:35:17,407 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-19 04:35:17,407 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-11-19 04:35:17,407 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-19 04:35:17,407 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-19 04:35:17,407 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-19 04:35:17,407 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-11-19 04:35:17,408 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-11-19 04:35:17,409 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-11-19 04:35:17,435 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2160eeb-bf7f-4ecc-b998-5d4a699c82ac/bin/uautomizer-ZXIjhQolGL/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (51)] Forceful destruction successful, exit code 0 [2021-11-19 04:35:17,435 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-19 04:35:17,435 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2160eeb-bf7f-4ecc-b998-5d4a699c82ac/bin/uautomizer-ZXIjhQolGL/z3 [2021-11-19 04:35:17,436 INFO L229 MonitoredProcess]: Starting monitored process 52 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2160eeb-bf7f-4ecc-b998-5d4a699c82ac/bin/uautomizer-ZXIjhQolGL/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-19 04:35:17,437 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2160eeb-bf7f-4ecc-b998-5d4a699c82ac/bin/uautomizer-ZXIjhQolGL/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (52)] Waiting until timeout for monitored process [2021-11-19 04:35:17,437 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 [2021-11-19 04:35:17,446 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-19 04:35:17,446 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-11-19 04:35:17,446 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-19 04:35:17,446 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-19 04:35:17,447 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-19 04:35:17,447 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-11-19 04:35:17,447 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-11-19 04:35:17,449 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-11-19 04:35:17,474 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2160eeb-bf7f-4ecc-b998-5d4a699c82ac/bin/uautomizer-ZXIjhQolGL/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (52)] Ended with exit code 0 [2021-11-19 04:35:17,474 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-19 04:35:17,474 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2160eeb-bf7f-4ecc-b998-5d4a699c82ac/bin/uautomizer-ZXIjhQolGL/z3 [2021-11-19 04:35:17,475 INFO L229 MonitoredProcess]: Starting monitored process 53 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2160eeb-bf7f-4ecc-b998-5d4a699c82ac/bin/uautomizer-ZXIjhQolGL/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-19 04:35:17,477 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2160eeb-bf7f-4ecc-b998-5d4a699c82ac/bin/uautomizer-ZXIjhQolGL/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (53)] Waiting until timeout for monitored process [2021-11-19 04:35:17,478 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 [2021-11-19 04:35:17,487 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-19 04:35:17,487 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-11-19 04:35:17,487 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-19 04:35:17,488 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-19 04:35:17,488 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-19 04:35:17,488 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-11-19 04:35:17,488 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-11-19 04:35:17,489 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-11-19 04:35:17,516 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2160eeb-bf7f-4ecc-b998-5d4a699c82ac/bin/uautomizer-ZXIjhQolGL/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (53)] Ended with exit code 0 [2021-11-19 04:35:17,516 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-19 04:35:17,516 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2160eeb-bf7f-4ecc-b998-5d4a699c82ac/bin/uautomizer-ZXIjhQolGL/z3 [2021-11-19 04:35:17,517 INFO L229 MonitoredProcess]: Starting monitored process 54 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2160eeb-bf7f-4ecc-b998-5d4a699c82ac/bin/uautomizer-ZXIjhQolGL/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-19 04:35:17,518 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2160eeb-bf7f-4ecc-b998-5d4a699c82ac/bin/uautomizer-ZXIjhQolGL/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (54)] Waiting until timeout for monitored process [2021-11-19 04:35:17,519 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-11-19 04:35:17,528 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-19 04:35:17,528 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-11-19 04:35:17,528 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-19 04:35:17,528 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-19 04:35:17,528 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-19 04:35:17,529 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-11-19 04:35:17,529 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-11-19 04:35:17,530 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-11-19 04:35:17,557 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2160eeb-bf7f-4ecc-b998-5d4a699c82ac/bin/uautomizer-ZXIjhQolGL/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (54)] Forceful destruction successful, exit code 0 [2021-11-19 04:35:17,557 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-19 04:35:17,557 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2160eeb-bf7f-4ecc-b998-5d4a699c82ac/bin/uautomizer-ZXIjhQolGL/z3 [2021-11-19 04:35:17,558 INFO L229 MonitoredProcess]: Starting monitored process 55 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2160eeb-bf7f-4ecc-b998-5d4a699c82ac/bin/uautomizer-ZXIjhQolGL/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-19 04:35:17,559 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2160eeb-bf7f-4ecc-b998-5d4a699c82ac/bin/uautomizer-ZXIjhQolGL/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (55)] Waiting until timeout for monitored process [2021-11-19 04:35:17,559 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 [2021-11-19 04:35:17,569 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-19 04:35:17,569 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-11-19 04:35:17,569 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-19 04:35:17,569 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-19 04:35:17,569 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-19 04:35:17,570 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-11-19 04:35:17,570 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-11-19 04:35:17,592 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-11-19 04:35:17,618 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2160eeb-bf7f-4ecc-b998-5d4a699c82ac/bin/uautomizer-ZXIjhQolGL/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (55)] Ended with exit code 0 [2021-11-19 04:35:17,618 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-19 04:35:17,618 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2160eeb-bf7f-4ecc-b998-5d4a699c82ac/bin/uautomizer-ZXIjhQolGL/z3 [2021-11-19 04:35:17,619 INFO L229 MonitoredProcess]: Starting monitored process 56 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2160eeb-bf7f-4ecc-b998-5d4a699c82ac/bin/uautomizer-ZXIjhQolGL/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-19 04:35:17,620 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2160eeb-bf7f-4ecc-b998-5d4a699c82ac/bin/uautomizer-ZXIjhQolGL/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (56)] Waiting until timeout for monitored process [2021-11-19 04:35:17,620 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 [2021-11-19 04:35:17,629 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-19 04:35:17,629 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-19 04:35:17,630 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-19 04:35:17,630 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-19 04:35:17,631 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-11-19 04:35:17,631 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-11-19 04:35:17,655 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-11-19 04:35:17,689 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2160eeb-bf7f-4ecc-b998-5d4a699c82ac/bin/uautomizer-ZXIjhQolGL/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (56)] Ended with exit code 0 [2021-11-19 04:35:17,689 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-19 04:35:17,689 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2160eeb-bf7f-4ecc-b998-5d4a699c82ac/bin/uautomizer-ZXIjhQolGL/z3 [2021-11-19 04:35:17,690 INFO L229 MonitoredProcess]: Starting monitored process 57 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2160eeb-bf7f-4ecc-b998-5d4a699c82ac/bin/uautomizer-ZXIjhQolGL/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-19 04:35:17,692 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2160eeb-bf7f-4ecc-b998-5d4a699c82ac/bin/uautomizer-ZXIjhQolGL/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (57)] Waiting until timeout for monitored process [2021-11-19 04:35:17,693 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 [2021-11-19 04:35:17,702 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-19 04:35:17,702 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-19 04:35:17,702 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-19 04:35:17,702 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-19 04:35:17,705 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-11-19 04:35:17,706 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-11-19 04:35:17,711 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-11-19 04:35:17,736 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2160eeb-bf7f-4ecc-b998-5d4a699c82ac/bin/uautomizer-ZXIjhQolGL/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (57)] Ended with exit code 0 [2021-11-19 04:35:17,736 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-19 04:35:17,736 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2160eeb-bf7f-4ecc-b998-5d4a699c82ac/bin/uautomizer-ZXIjhQolGL/z3 [2021-11-19 04:35:17,737 INFO L229 MonitoredProcess]: Starting monitored process 58 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2160eeb-bf7f-4ecc-b998-5d4a699c82ac/bin/uautomizer-ZXIjhQolGL/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-19 04:35:17,737 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2160eeb-bf7f-4ecc-b998-5d4a699c82ac/bin/uautomizer-ZXIjhQolGL/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (58)] Waiting until timeout for monitored process [2021-11-19 04:35:17,738 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 [2021-11-19 04:35:17,747 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-19 04:35:17,748 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-19 04:35:17,748 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-19 04:35:17,748 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-19 04:35:17,761 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-11-19 04:35:17,761 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-11-19 04:35:17,788 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2021-11-19 04:35:17,928 INFO L443 ModelExtractionUtils]: Simplification made 44 calls to the SMT solver. [2021-11-19 04:35:17,928 INFO L444 ModelExtractionUtils]: 25 out of 61 variables were initially zero. Simplification set additionally 33 variables to zero. [2021-11-19 04:35:17,928 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-19 04:35:17,929 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2160eeb-bf7f-4ecc-b998-5d4a699c82ac/bin/uautomizer-ZXIjhQolGL/z3 [2021-11-19 04:35:17,930 INFO L229 MonitoredProcess]: Starting monitored process 59 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2160eeb-bf7f-4ecc-b998-5d4a699c82ac/bin/uautomizer-ZXIjhQolGL/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-19 04:35:17,931 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2160eeb-bf7f-4ecc-b998-5d4a699c82ac/bin/uautomizer-ZXIjhQolGL/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (59)] Waiting until timeout for monitored process [2021-11-19 04:35:17,931 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2021-11-19 04:35:17,946 INFO L438 nArgumentSynthesizer]: Removed 2 redundant supporting invariants from a total of 2. [2021-11-19 04:35:17,946 INFO L513 LassoAnalysis]: Proved termination. [2021-11-19 04:35:17,946 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_cstrspn_~s~0#1.offset, v_rep(select #length ULTIMATE.start_main_~nondetString2~0#1.base)_3) = -1*ULTIMATE.start_cstrspn_~s~0#1.offset + 1*v_rep(select #length ULTIMATE.start_main_~nondetString2~0#1.base)_3 Supporting invariants [] [2021-11-19 04:35:17,972 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2160eeb-bf7f-4ecc-b998-5d4a699c82ac/bin/uautomizer-ZXIjhQolGL/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (58)] Ended with exit code 0 [2021-11-19 04:35:18,220 INFO L297 tatePredicateManager]: 42 out of 44 supporting invariants were superfluous and have been removed [2021-11-19 04:35:18,244 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 04:35:18,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 04:35:18,272 INFO L263 TraceCheckSpWp]: Trace formula consists of 155 conjuncts, 12 conjunts are in the unsatisfiable core [2021-11-19 04:35:18,274 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 04:35:18,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 04:35:18,517 INFO L263 TraceCheckSpWp]: Trace formula consists of 26 conjuncts, 10 conjunts are in the unsatisfiable core [2021-11-19 04:35:18,518 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 04:35:18,571 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-19 04:35:18,571 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.3 stem predicates 2 loop predicates [2021-11-19 04:35:18,572 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 34 states and 41 transitions. cyclomatic complexity: 12 Second operand has 5 states, 5 states have (on average 5.0) internal successors, (25), 5 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-19 04:35:18,657 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 34 states and 41 transitions. cyclomatic complexity: 12. Second operand has 5 states, 5 states have (on average 5.0) internal successors, (25), 5 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 50 states and 58 transitions. Complement of second has 7 states. [2021-11-19 04:35:18,657 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 5 states 3 stem states 1 non-accepting loop states 1 accepting loop states [2021-11-19 04:35:18,661 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5 states, 5 states have (on average 5.0) internal successors, (25), 5 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-19 04:35:18,661 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 25 transitions. [2021-11-19 04:35:18,662 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 25 transitions. Stem has 25 letters. Loop has 3 letters. [2021-11-19 04:35:18,663 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-11-19 04:35:18,663 INFO L634 RefineBuchi]: Bad chosen interpolant automaton: word not accepted [2021-11-19 04:35:18,689 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 04:35:18,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 04:35:18,725 INFO L263 TraceCheckSpWp]: Trace formula consists of 155 conjuncts, 12 conjunts are in the unsatisfiable core [2021-11-19 04:35:18,727 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 04:35:18,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 04:35:18,954 INFO L263 TraceCheckSpWp]: Trace formula consists of 26 conjuncts, 10 conjunts are in the unsatisfiable core [2021-11-19 04:35:18,955 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 04:35:19,004 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-19 04:35:19,005 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and with honda bouncer for loop.3 stem predicates 2 loop predicates [2021-11-19 04:35:19,005 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 34 states and 41 transitions. cyclomatic complexity: 12 Second operand has 5 states, 5 states have (on average 5.0) internal successors, (25), 5 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-19 04:35:19,072 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 34 states and 41 transitions. cyclomatic complexity: 12. Second operand has 5 states, 5 states have (on average 5.0) internal successors, (25), 5 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 50 states and 58 transitions. Complement of second has 7 states. [2021-11-19 04:35:19,073 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 5 states 3 stem states 1 non-accepting loop states 1 accepting loop states [2021-11-19 04:35:19,074 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5 states, 5 states have (on average 5.0) internal successors, (25), 5 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-19 04:35:19,075 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 25 transitions. [2021-11-19 04:35:19,076 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 25 transitions. Stem has 25 letters. Loop has 3 letters. [2021-11-19 04:35:19,076 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-11-19 04:35:19,076 INFO L634 RefineBuchi]: Bad chosen interpolant automaton: word not accepted [2021-11-19 04:35:19,109 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 04:35:19,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 04:35:19,149 INFO L263 TraceCheckSpWp]: Trace formula consists of 155 conjuncts, 12 conjunts are in the unsatisfiable core [2021-11-19 04:35:19,186 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 04:35:19,235 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2160eeb-bf7f-4ecc-b998-5d4a699c82ac/bin/uautomizer-ZXIjhQolGL/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (59)] Forceful destruction successful, exit code 0 [2021-11-19 04:35:19,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 04:35:19,392 INFO L263 TraceCheckSpWp]: Trace formula consists of 26 conjuncts, 10 conjunts are in the unsatisfiable core [2021-11-19 04:35:19,393 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 04:35:19,446 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-19 04:35:19,447 INFO L152 lantAutomatonBouncer]: Defining Buchi interpolant automaton with scrooge nondeterminism in stemwith honda bouncer for stem and without honda bouncer for loop.3 stem predicates 2 loop predicates [2021-11-19 04:35:19,448 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 34 states and 41 transitions. cyclomatic complexity: 12 Second operand has 5 states, 5 states have (on average 5.0) internal successors, (25), 5 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-19 04:35:19,511 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 34 states and 41 transitions. cyclomatic complexity: 12. Second operand has 5 states, 5 states have (on average 5.0) internal successors, (25), 5 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 49 states and 58 transitions. Complement of second has 6 states. [2021-11-19 04:35:19,512 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 5 states 3 stem states 1 non-accepting loop states 1 accepting loop states [2021-11-19 04:35:19,513 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5 states, 5 states have (on average 5.0) internal successors, (25), 5 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-19 04:35:19,514 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 33 transitions. [2021-11-19 04:35:19,514 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 33 transitions. Stem has 25 letters. Loop has 3 letters. [2021-11-19 04:35:19,516 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-11-19 04:35:19,519 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 33 transitions. Stem has 28 letters. Loop has 3 letters. [2021-11-19 04:35:19,520 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-11-19 04:35:19,521 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 33 transitions. Stem has 25 letters. Loop has 6 letters. [2021-11-19 04:35:19,521 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-11-19 04:35:19,521 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 49 states and 58 transitions. [2021-11-19 04:35:19,522 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2021-11-19 04:35:19,523 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 49 states to 0 states and 0 transitions. [2021-11-19 04:35:19,523 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2021-11-19 04:35:19,523 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2021-11-19 04:35:19,523 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2021-11-19 04:35:19,523 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-11-19 04:35:19,523 INFO L681 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-11-19 04:35:19,524 INFO L704 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-11-19 04:35:19,524 INFO L587 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-11-19 04:35:19,524 INFO L425 BuchiCegarLoop]: ======== Iteration 13============ [2021-11-19 04:35:19,524 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2021-11-19 04:35:19,524 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2021-11-19 04:35:19,524 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2021-11-19 04:35:19,532 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 19.11 04:35:19 BoogieIcfgContainer [2021-11-19 04:35:19,533 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2021-11-19 04:35:19,533 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-11-19 04:35:19,533 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-11-19 04:35:19,534 INFO L275 PluginConnector]: Witness Printer initialized [2021-11-19 04:35:19,534 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 04:34:47" (3/4) ... [2021-11-19 04:35:19,539 INFO L140 WitnessPrinter]: No result that supports witness generation found [2021-11-19 04:35:19,540 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-11-19 04:35:19,541 INFO L158 Benchmark]: Toolchain (without parser) took 33303.83ms. Allocated memory was 90.2MB in the beginning and 209.7MB in the end (delta: 119.5MB). Free memory was 52.7MB in the beginning and 151.7MB in the end (delta: -98.9MB). Peak memory consumption was 22.5MB. Max. memory is 16.1GB. [2021-11-19 04:35:19,541 INFO L158 Benchmark]: CDTParser took 0.38ms. Allocated memory is still 90.2MB. Free memory is still 71.2MB. There was no memory consumed. Max. memory is 16.1GB. [2021-11-19 04:35:19,542 INFO L158 Benchmark]: CACSL2BoogieTranslator took 702.84ms. Allocated memory is still 90.2MB. Free memory was 52.6MB in the beginning and 65.0MB in the end (delta: -12.5MB). Peak memory consumption was 19.8MB. Max. memory is 16.1GB. [2021-11-19 04:35:19,543 INFO L158 Benchmark]: Boogie Procedure Inliner took 62.11ms. Allocated memory is still 90.2MB. Free memory was 65.0MB in the beginning and 63.0MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-11-19 04:35:19,543 INFO L158 Benchmark]: Boogie Preprocessor took 38.91ms. Allocated memory is still 90.2MB. Free memory was 63.0MB in the beginning and 61.5MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-11-19 04:35:19,543 INFO L158 Benchmark]: RCFGBuilder took 542.35ms. Allocated memory is still 90.2MB. Free memory was 61.5MB in the beginning and 49.5MB in the end (delta: 12.0MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2021-11-19 04:35:19,544 INFO L158 Benchmark]: BuchiAutomizer took 31943.30ms. Allocated memory was 90.2MB in the beginning and 209.7MB in the end (delta: 119.5MB). Free memory was 49.5MB in the beginning and 151.7MB in the end (delta: -102.2MB). Peak memory consumption was 17.4MB. Max. memory is 16.1GB. [2021-11-19 04:35:19,544 INFO L158 Benchmark]: Witness Printer took 6.47ms. Allocated memory is still 209.7MB. Free memory is still 151.7MB. There was no memory consumed. Max. memory is 16.1GB. [2021-11-19 04:35:19,547 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.38ms. Allocated memory is still 90.2MB. Free memory is still 71.2MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 702.84ms. Allocated memory is still 90.2MB. Free memory was 52.6MB in the beginning and 65.0MB in the end (delta: -12.5MB). Peak memory consumption was 19.8MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 62.11ms. Allocated memory is still 90.2MB. Free memory was 65.0MB in the beginning and 63.0MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 38.91ms. Allocated memory is still 90.2MB. Free memory was 63.0MB in the beginning and 61.5MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 542.35ms. Allocated memory is still 90.2MB. Free memory was 61.5MB in the beginning and 49.5MB in the end (delta: 12.0MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * BuchiAutomizer took 31943.30ms. Allocated memory was 90.2MB in the beginning and 209.7MB in the end (delta: 119.5MB). Free memory was 49.5MB in the beginning and 151.7MB in the end (delta: -102.2MB). Peak memory consumption was 17.4MB. Max. memory is 16.1GB. * Witness Printer took 6.47ms. Allocated memory is still 209.7MB. Free memory is still 151.7MB. 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 12 terminating modules (7 trivial, 4 deterministic, 1 nondeterministic). One deterministic module has affine ranking function -1 * i + unknown-#length-unknown[__builtin_alloca (length1 * sizeof(char))] and consists of 5 locations. One deterministic module has affine ranking function length2 + -1 * i and consists of 4 locations. One deterministic module has affine ranking function unknown-#length-unknown[__builtin_alloca (length1 * sizeof(char))] + -1 * sc1 and consists of 4 locations. One deterministic module has affine ranking function unknown-#length-unknown[s] + -1 * s and consists of 3 locations. One nondeterministic module has affine ranking function unknown-#length-unknown[nondetString2] + -1 * s and consists of 5 locations. 7 modules have a trivial ranking function, the largest among these consists of 21 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 31.8s and 13 iterations. TraceHistogramMax:2. Analysis of lassos took 28.1s. Construction of modules took 0.6s. Büchi inclusion checks took 2.8s. Highest rank in rank-based complementation 3. Minimization of det autom 9. Minimization of nondet autom 3. Automata minimization 0.1s AutomataMinimizationTime, 11 MinimizatonAttempts, 27 StatesRemovedByMinimization, 7 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 35 states and ocurred in iteration 6. Nontrivial modules had stage [4, 0, 1, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 507 SdHoareTripleChecker+Valid, 0.8s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 505 mSDsluCounter, 798 SdHoareTripleChecker+Invalid, 0.6s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 21 IncrementalHoareTripleChecker+Unchecked, 548 mSDsCounter, 79 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 512 IncrementalHoareTripleChecker+Invalid, 612 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 79 mSolverCounterUnsat, 250 mSDtfsCounter, 512 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown LassoAnalysisResults: nont0 unkn0 SFLI1 SFLT0 conc3 concLT0 SILN0 SILU2 SILI1 SILT0 lasso5 LassoPreprocessingBenchmarks: Lassos: inital300 mio100 ax108 hnf99 lsp91 ukn74 mio100 lsp43 div106 bol100 ite100 ukn100 eq179 hnf88 smp97 dnf331 smp59 tf100 neg98 sie105 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 65ms VariablesStem: 5 VariablesLoop: 2 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 2 MotzkinApplications: 6 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 0 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 0 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.0s - TerminationAnalysisResult: Termination proven Buchi Automizer proved that your program is terminating RESULT: Ultimate proved your program to be correct! [2021-11-19 04:35:19,605 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2160eeb-bf7f-4ecc-b998-5d4a699c82ac/bin/uautomizer-ZXIjhQolGL/z3 -smt2 -in SMTLIB2_COMPLIANT=true (45)] Forceful destruction successful, exit code 0 [2021-11-19 04:35:19,812 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2160eeb-bf7f-4ecc-b998-5d4a699c82ac/bin/uautomizer-ZXIjhQolGL/z3 -smt2 -in SMTLIB2_COMPLIANT=true (22)] Ended with exit code 0 [2021-11-19 04:35:20,013 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2160eeb-bf7f-4ecc-b998-5d4a699c82ac/bin/uautomizer-ZXIjhQolGL/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Ended with exit code 0 [2021-11-19 04:35:20,216 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2160eeb-bf7f-4ecc-b998-5d4a699c82ac/bin/uautomizer-ZXIjhQolGL/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE