./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/seq-mthreaded/pals_lcr.7.ufo.BOUNDED-14.pals.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 53f42b1a Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_555edb77-3c80-4b1b-99c5-aa7ff6b25ecc/bin/uautomizer-DQz5hQGWxF/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_555edb77-3c80-4b1b-99c5-aa7ff6b25ecc/bin/uautomizer-DQz5hQGWxF/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_555edb77-3c80-4b1b-99c5-aa7ff6b25ecc/bin/uautomizer-DQz5hQGWxF/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_555edb77-3c80-4b1b-99c5-aa7ff6b25ecc/bin/uautomizer-DQz5hQGWxF/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/seq-mthreaded/pals_lcr.7.ufo.BOUNDED-14.pals.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_555edb77-3c80-4b1b-99c5-aa7ff6b25ecc/bin/uautomizer-DQz5hQGWxF/config/svcomp-Termination-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_555edb77-3c80-4b1b-99c5-aa7ff6b25ecc/bin/uautomizer-DQz5hQGWxF --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 84bce40124007e6e483bf8a05621b58460eab347da71074e5760fdf76654ee7f --- Real Ultimate output --- This is Ultimate 0.2.1-dev-53f42b1 [2021-11-20 07:13:05,915 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-20 07:13:05,918 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-20 07:13:05,958 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-20 07:13:05,958 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-20 07:13:05,960 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-20 07:13:05,962 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-20 07:13:05,964 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-20 07:13:05,966 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-20 07:13:05,968 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-20 07:13:05,969 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-20 07:13:05,970 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-20 07:13:05,971 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-20 07:13:05,972 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-20 07:13:05,974 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-20 07:13:05,976 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-20 07:13:05,977 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-20 07:13:05,978 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-20 07:13:05,981 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-20 07:13:05,985 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-20 07:13:05,988 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-20 07:13:05,989 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-20 07:13:05,991 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-20 07:13:05,992 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-20 07:13:05,996 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-20 07:13:05,996 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-20 07:13:05,997 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-20 07:13:05,998 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-20 07:13:05,998 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-20 07:13:05,999 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-20 07:13:06,000 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-20 07:13:06,000 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-20 07:13:06,001 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-20 07:13:06,002 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-20 07:13:06,003 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-20 07:13:06,003 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-20 07:13:06,004 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-20 07:13:06,004 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-20 07:13:06,004 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-20 07:13:06,005 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-20 07:13:06,005 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-20 07:13:06,006 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_555edb77-3c80-4b1b-99c5-aa7ff6b25ecc/bin/uautomizer-DQz5hQGWxF/config/svcomp-Termination-32bit-Automizer_Default.epf [2021-11-20 07:13:06,033 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-20 07:13:06,033 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-20 07:13:06,034 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-20 07:13:06,034 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-20 07:13:06,035 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-20 07:13:06,035 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-20 07:13:06,035 INFO L138 SettingsManager]: * Use SBE=true [2021-11-20 07:13:06,036 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2021-11-20 07:13:06,036 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2021-11-20 07:13:06,036 INFO L138 SettingsManager]: * Use old map elimination=false [2021-11-20 07:13:06,036 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2021-11-20 07:13:06,037 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2021-11-20 07:13:06,037 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2021-11-20 07:13:06,037 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-20 07:13:06,037 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-20 07:13:06,038 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-11-20 07:13:06,038 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-20 07:13:06,038 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-20 07:13:06,038 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-20 07:13:06,038 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2021-11-20 07:13:06,039 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2021-11-20 07:13:06,039 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2021-11-20 07:13:06,039 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-20 07:13:06,039 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-20 07:13:06,040 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2021-11-20 07:13:06,040 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-20 07:13:06,040 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2021-11-20 07:13:06,040 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-20 07:13:06,040 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-20 07:13:06,041 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-20 07:13:06,041 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-11-20 07:13:06,041 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-20 07:13:06,042 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2021-11-20 07:13:06,042 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_555edb77-3c80-4b1b-99c5-aa7ff6b25ecc/bin/uautomizer-DQz5hQGWxF/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_555edb77-3c80-4b1b-99c5-aa7ff6b25ecc/bin/uautomizer-DQz5hQGWxF Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 84bce40124007e6e483bf8a05621b58460eab347da71074e5760fdf76654ee7f [2021-11-20 07:13:06,326 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-20 07:13:06,355 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-20 07:13:06,358 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-20 07:13:06,359 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-20 07:13:06,361 INFO L275 PluginConnector]: CDTParser initialized [2021-11-20 07:13:06,362 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_555edb77-3c80-4b1b-99c5-aa7ff6b25ecc/bin/uautomizer-DQz5hQGWxF/../../sv-benchmarks/c/seq-mthreaded/pals_lcr.7.ufo.BOUNDED-14.pals.c [2021-11-20 07:13:06,426 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_555edb77-3c80-4b1b-99c5-aa7ff6b25ecc/bin/uautomizer-DQz5hQGWxF/data/596eadd2e/3c289d14048e45f29cfabdb68dd2727c/FLAG6110838fb [2021-11-20 07:13:06,943 INFO L306 CDTParser]: Found 1 translation units. [2021-11-20 07:13:06,945 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_555edb77-3c80-4b1b-99c5-aa7ff6b25ecc/sv-benchmarks/c/seq-mthreaded/pals_lcr.7.ufo.BOUNDED-14.pals.c [2021-11-20 07:13:06,957 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_555edb77-3c80-4b1b-99c5-aa7ff6b25ecc/bin/uautomizer-DQz5hQGWxF/data/596eadd2e/3c289d14048e45f29cfabdb68dd2727c/FLAG6110838fb [2021-11-20 07:13:07,264 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_555edb77-3c80-4b1b-99c5-aa7ff6b25ecc/bin/uautomizer-DQz5hQGWxF/data/596eadd2e/3c289d14048e45f29cfabdb68dd2727c [2021-11-20 07:13:07,266 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-20 07:13:07,267 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-20 07:13:07,268 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-20 07:13:07,269 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-20 07:13:07,274 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-20 07:13:07,274 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 07:13:07" (1/1) ... [2021-11-20 07:13:07,276 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@18970e9a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 07:13:07, skipping insertion in model container [2021-11-20 07:13:07,280 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 07:13:07" (1/1) ... [2021-11-20 07:13:07,285 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-20 07:13:07,333 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-20 07:13:07,603 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_555edb77-3c80-4b1b-99c5-aa7ff6b25ecc/sv-benchmarks/c/seq-mthreaded/pals_lcr.7.ufo.BOUNDED-14.pals.c[20019,20032] [2021-11-20 07:13:07,604 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-20 07:13:07,614 INFO L203 MainTranslator]: Completed pre-run [2021-11-20 07:13:07,690 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_555edb77-3c80-4b1b-99c5-aa7ff6b25ecc/sv-benchmarks/c/seq-mthreaded/pals_lcr.7.ufo.BOUNDED-14.pals.c[20019,20032] [2021-11-20 07:13:07,691 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-20 07:13:07,706 INFO L208 MainTranslator]: Completed translation [2021-11-20 07:13:07,707 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 07:13:07 WrapperNode [2021-11-20 07:13:07,707 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-20 07:13:07,708 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-20 07:13:07,708 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-20 07:13:07,708 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-20 07:13:07,716 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 07:13:07" (1/1) ... [2021-11-20 07:13:07,728 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 07:13:07" (1/1) ... [2021-11-20 07:13:07,763 INFO L137 Inliner]: procedures = 26, calls = 18, calls flagged for inlining = 13, calls inlined = 13, statements flattened = 429 [2021-11-20 07:13:07,763 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-20 07:13:07,764 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-20 07:13:07,764 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-20 07:13:07,764 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-20 07:13:07,773 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 07:13:07" (1/1) ... [2021-11-20 07:13:07,773 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 07:13:07" (1/1) ... [2021-11-20 07:13:07,777 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 07:13:07" (1/1) ... [2021-11-20 07:13:07,777 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 07:13:07" (1/1) ... [2021-11-20 07:13:07,787 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 07:13:07" (1/1) ... [2021-11-20 07:13:07,794 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 07:13:07" (1/1) ... [2021-11-20 07:13:07,797 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 07:13:07" (1/1) ... [2021-11-20 07:13:07,802 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-20 07:13:07,803 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-20 07:13:07,803 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-20 07:13:07,803 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-20 07:13:07,820 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 07:13:07" (1/1) ... [2021-11-20 07:13:07,827 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-20 07:13:07,845 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_555edb77-3c80-4b1b-99c5-aa7ff6b25ecc/bin/uautomizer-DQz5hQGWxF/z3 [2021-11-20 07:13:07,865 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_555edb77-3c80-4b1b-99c5-aa7ff6b25ecc/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-20 07:13:07,886 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_555edb77-3c80-4b1b-99c5-aa7ff6b25ecc/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2021-11-20 07:13:07,912 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-20 07:13:07,912 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-20 07:13:07,912 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-20 07:13:07,912 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-20 07:13:08,011 INFO L236 CfgBuilder]: Building ICFG [2021-11-20 07:13:08,028 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-20 07:13:08,490 INFO L277 CfgBuilder]: Performing block encoding [2021-11-20 07:13:08,505 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-20 07:13:08,507 INFO L301 CfgBuilder]: Removed 1 assume(true) statements. [2021-11-20 07:13:08,509 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 07:13:08 BoogieIcfgContainer [2021-11-20 07:13:08,509 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-20 07:13:08,512 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2021-11-20 07:13:08,513 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2021-11-20 07:13:08,515 INFO L275 PluginConnector]: BuchiAutomizer initialized [2021-11-20 07:13:08,516 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-11-20 07:13:08,516 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 20.11 07:13:07" (1/3) ... [2021-11-20 07:13:08,518 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@132b234d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 20.11 07:13:08, skipping insertion in model container [2021-11-20 07:13:08,518 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-11-20 07:13:08,518 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 07:13:07" (2/3) ... [2021-11-20 07:13:08,518 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@132b234d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 20.11 07:13:08, skipping insertion in model container [2021-11-20 07:13:08,518 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-11-20 07:13:08,518 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 07:13:08" (3/3) ... [2021-11-20 07:13:08,520 INFO L388 chiAutomizerObserver]: Analyzing ICFG pals_lcr.7.ufo.BOUNDED-14.pals.c [2021-11-20 07:13:08,559 INFO L359 BuchiCegarLoop]: Interprodecural is true [2021-11-20 07:13:08,559 INFO L360 BuchiCegarLoop]: Hoare is false [2021-11-20 07:13:08,559 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2021-11-20 07:13:08,560 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2021-11-20 07:13:08,560 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-11-20 07:13:08,560 INFO L364 BuchiCegarLoop]: Difference is false [2021-11-20 07:13:08,560 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-11-20 07:13:08,560 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2021-11-20 07:13:08,583 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 127 states, 126 states have (on average 1.746031746031746) internal successors, (220), 126 states have internal predecessors, (220), 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) [2021-11-20 07:13:08,626 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 67 [2021-11-20 07:13:08,627 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-11-20 07:13:08,627 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-11-20 07:13:08,636 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2021-11-20 07:13:08,636 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-20 07:13:08,636 INFO L425 BuchiCegarLoop]: ======== Iteration 1============ [2021-11-20 07:13:08,637 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 127 states, 126 states have (on average 1.746031746031746) internal successors, (220), 126 states have internal predecessors, (220), 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) [2021-11-20 07:13:08,647 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 67 [2021-11-20 07:13:08,647 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-11-20 07:13:08,647 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-11-20 07:13:08,649 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2021-11-20 07:13:08,650 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-20 07:13:08,657 INFO L791 eck$LassoCheckResult]: Stem: 115#ULTIMATE.startENTRYtrue assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int(48, 1, 0, 1);call write~init~int(0, 1, 1, 1);call #Ultimate.allocInit(33, 2);call #Ultimate.allocInit(12, 3);~nomsg~0 := -1;~r1~0 := 0;~p1~0 := 0;~p1_old~0 := 0;~p1_new~0 := 0;~id1~0 := 0;~st1~0 := 0;~send1~0 := 0;~mode1~0 := 0;~p2~0 := 0;~p2_old~0 := 0;~p2_new~0 := 0;~id2~0 := 0;~st2~0 := 0;~send2~0 := 0;~mode2~0 := 0;~p3~0 := 0;~p3_old~0 := 0;~p3_new~0 := 0;~id3~0 := 0;~st3~0 := 0;~send3~0 := 0;~mode3~0 := 0;~p4~0 := 0;~p4_old~0 := 0;~p4_new~0 := 0;~id4~0 := 0;~st4~0 := 0;~send4~0 := 0;~mode4~0 := 0;~p5~0 := 0;~p5_old~0 := 0;~p5_new~0 := 0;~id5~0 := 0;~st5~0 := 0;~send5~0 := 0;~mode5~0 := 0;~p6~0 := 0;~p6_old~0 := 0;~p6_new~0 := 0;~id6~0 := 0;~st6~0 := 0;~send6~0 := 0;~mode6~0 := 0;~p7~0 := 0;~p7_old~0 := 0;~p7_new~0 := 0;~id7~0 := 0;~st7~0 := 0;~send7~0 := 0;~mode7~0 := 0; 39#L-1true assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet11#1, main_#t~nondet12#1, main_#t~nondet13#1, main_#t~nondet14#1, main_#t~nondet15#1, main_#t~nondet16#1, main_#t~nondet17#1, main_#t~nondet18#1, main_#t~nondet19#1, main_#t~nondet20#1, main_#t~nondet21#1, main_#t~nondet22#1, main_#t~nondet23#1, main_#t~nondet24#1, main_#t~nondet25#1, main_#t~nondet26#1, main_#t~nondet27#1, main_#t~nondet28#1, main_#t~nondet29#1, main_#t~nondet30#1, main_#t~nondet31#1, main_#t~nondet32#1, main_#t~nondet33#1, main_#t~nondet34#1, main_#t~nondet35#1, main_#t~nondet36#1, main_#t~nondet37#1, main_#t~nondet38#1, main_#t~nondet39#1, main_#t~ret40#1, main_#t~ret41#1, main_#t~post42#1, main_~c1~0#1, main_~i2~0#1;havoc main_~c1~0#1;havoc main_~i2~0#1;main_~c1~0#1 := 0;~r1~0 := main_#t~nondet11#1;havoc main_#t~nondet11#1;~id1~0 := main_#t~nondet12#1;havoc main_#t~nondet12#1;~st1~0 := main_#t~nondet13#1;havoc main_#t~nondet13#1;~send1~0 := main_#t~nondet14#1;havoc main_#t~nondet14#1;~mode1~0 := main_#t~nondet15#1;havoc main_#t~nondet15#1;~id2~0 := main_#t~nondet16#1;havoc main_#t~nondet16#1;~st2~0 := main_#t~nondet17#1;havoc main_#t~nondet17#1;~send2~0 := main_#t~nondet18#1;havoc main_#t~nondet18#1;~mode2~0 := main_#t~nondet19#1;havoc main_#t~nondet19#1;~id3~0 := main_#t~nondet20#1;havoc main_#t~nondet20#1;~st3~0 := main_#t~nondet21#1;havoc main_#t~nondet21#1;~send3~0 := main_#t~nondet22#1;havoc main_#t~nondet22#1;~mode3~0 := main_#t~nondet23#1;havoc main_#t~nondet23#1;~id4~0 := main_#t~nondet24#1;havoc main_#t~nondet24#1;~st4~0 := main_#t~nondet25#1;havoc main_#t~nondet25#1;~send4~0 := main_#t~nondet26#1;havoc main_#t~nondet26#1;~mode4~0 := main_#t~nondet27#1;havoc main_#t~nondet27#1;~id5~0 := main_#t~nondet28#1;havoc main_#t~nondet28#1;~st5~0 := main_#t~nondet29#1;havoc main_#t~nondet29#1;~send5~0 := main_#t~nondet30#1;havoc main_#t~nondet30#1;~mode5~0 := main_#t~nondet31#1;havoc main_#t~nondet31#1;~id6~0 := main_#t~nondet32#1;havoc main_#t~nondet32#1;~st6~0 := main_#t~nondet33#1;havoc main_#t~nondet33#1;~send6~0 := main_#t~nondet34#1;havoc main_#t~nondet34#1;~mode6~0 := main_#t~nondet35#1;havoc main_#t~nondet35#1;~id7~0 := main_#t~nondet36#1;havoc main_#t~nondet36#1;~st7~0 := main_#t~nondet37#1;havoc main_#t~nondet37#1;~send7~0 := main_#t~nondet38#1;havoc main_#t~nondet38#1;~mode7~0 := main_#t~nondet39#1;havoc main_#t~nondet39#1;assume { :begin_inline_init } true;havoc init_#res#1;havoc init_~tmp~0#1;havoc init_~tmp~0#1; 68#L260true assume !(0 == ~r1~0);init_~tmp~0#1 := 0; 78#L260-1true init_#res#1 := init_~tmp~0#1; 4#L461true main_#t~ret40#1 := init_#res#1;assume { :end_inline_init } true;main_~i2~0#1 := main_#t~ret40#1;havoc main_#t~ret40#1;assume { :begin_inline_assume_abort_if_not } true;assume_abort_if_not_#in~cond#1 := main_~i2~0#1;havoc assume_abort_if_not_~cond#1;assume_abort_if_not_~cond#1 := assume_abort_if_not_#in~cond#1; 42#L22true assume !(0 == assume_abort_if_not_~cond#1); 97#L21true assume { :end_inline_assume_abort_if_not } true;~p1_old~0 := ~nomsg~0;~p1_new~0 := ~nomsg~0;~p2_old~0 := ~nomsg~0;~p2_new~0 := ~nomsg~0;~p3_old~0 := ~nomsg~0;~p3_new~0 := ~nomsg~0;~p4_old~0 := ~nomsg~0;~p4_new~0 := ~nomsg~0;~p5_old~0 := ~nomsg~0;~p5_new~0 := ~nomsg~0;~p6_old~0 := ~nomsg~0;~p6_new~0 := ~nomsg~0;~p7_old~0 := ~nomsg~0;~p7_new~0 := ~nomsg~0;main_~i2~0#1 := 0; 73#L545-2true [2021-11-20 07:13:08,659 INFO L793 eck$LassoCheckResult]: Loop: 73#L545-2true assume !!(main_~i2~0#1 < 14);assume { :begin_inline_node1 } true;havoc node1_#t~ite4#1, node1_~m1~0#1;havoc node1_~m1~0#1;node1_~m1~0#1 := ~nomsg~0; 37#L85true assume 0 != ~mode1~0 % 256;~r1~0 := (if (1 + ~r1~0) % 256 <= 127 then (1 + ~r1~0) % 256 else (1 + ~r1~0) % 256 - 256);node1_~m1~0#1 := ~p7_old~0;~p7_old~0 := ~nomsg~0; 72#L89true assume !(node1_~m1~0#1 != ~nomsg~0); 46#L89-1true ~mode1~0 := 0; 7#L85-2true assume { :end_inline_node1 } true;assume { :begin_inline_node2 } true;havoc node2_#t~ite5#1, node2_~m2~0#1;havoc node2_~m2~0#1;node2_~m2~0#1 := ~nomsg~0; 22#L111true assume !(0 != ~mode2~0 % 256); 79#L124true assume ~send2~0 != ~nomsg~0 && ~p2_new~0 == ~nomsg~0;node2_#t~ite5#1 := ~send2~0; 65#L124-2true ~p2_new~0 := (if node2_#t~ite5#1 % 256 <= 127 then node2_#t~ite5#1 % 256 else node2_#t~ite5#1 % 256 - 256);havoc node2_#t~ite5#1;~mode2~0 := 1; 98#L111-2true assume { :end_inline_node2 } true;assume { :begin_inline_node3 } true;havoc node3_#t~ite6#1, node3_~m3~0#1;havoc node3_~m3~0#1;node3_~m3~0#1 := ~nomsg~0; 21#L136true assume 0 != ~mode3~0 % 256;node3_~m3~0#1 := ~p2_old~0;~p2_old~0 := ~nomsg~0; 30#L139true assume !(node3_~m3~0#1 != ~nomsg~0); 12#L139-1true ~mode3~0 := 0; 32#L136-2true assume { :end_inline_node3 } true;assume { :begin_inline_node4 } true;havoc node4_#t~ite7#1, node4_~m4~0#1;havoc node4_~m4~0#1;node4_~m4~0#1 := ~nomsg~0; 18#L161true assume 0 != ~mode4~0 % 256;node4_~m4~0#1 := ~p3_old~0;~p3_old~0 := ~nomsg~0; 85#L164true assume !(node4_~m4~0#1 != ~nomsg~0); 99#L164-1true ~mode4~0 := 0; 9#L161-2true assume { :end_inline_node4 } true;assume { :begin_inline_node5 } true;havoc node5_#t~ite8#1, node5_~m5~0#1;havoc node5_~m5~0#1;node5_~m5~0#1 := ~nomsg~0; 66#L186true assume 0 != ~mode5~0 % 256;node5_~m5~0#1 := ~p4_old~0;~p4_old~0 := ~nomsg~0; 86#L189true assume !(node5_~m5~0#1 != ~nomsg~0); 41#L189-1true ~mode5~0 := 0; 13#L186-2true assume { :end_inline_node5 } true;assume { :begin_inline_node6 } true;havoc node6_#t~ite9#1, node6_~m6~0#1;havoc node6_~m6~0#1;node6_~m6~0#1 := ~nomsg~0; 103#L211true assume !(0 != ~mode6~0 % 256); 77#L224true assume ~send6~0 != ~nomsg~0 && ~p6_new~0 == ~nomsg~0;node6_#t~ite9#1 := ~send6~0; 100#L224-2true ~p6_new~0 := (if node6_#t~ite9#1 % 256 <= 127 then node6_#t~ite9#1 % 256 else node6_#t~ite9#1 % 256 - 256);havoc node6_#t~ite9#1;~mode6~0 := 1; 84#L211-2true assume { :end_inline_node6 } true;assume { :begin_inline_node7 } true;havoc node7_#t~ite10#1, node7_~m7~0#1;havoc node7_~m7~0#1;node7_~m7~0#1 := ~nomsg~0; 59#L236true assume 0 != ~mode7~0 % 256;node7_~m7~0#1 := ~p6_old~0;~p6_old~0 := ~nomsg~0; 29#L239true assume !(node7_~m7~0#1 != ~nomsg~0); 23#L239-1true ~mode7~0 := 0; 57#L236-2true assume { :end_inline_node7 } true;~p1_old~0 := ~p1_new~0;~p1_new~0 := ~nomsg~0;~p2_old~0 := ~p2_new~0;~p2_new~0 := ~nomsg~0;~p3_old~0 := ~p3_new~0;~p3_new~0 := ~nomsg~0;~p4_old~0 := ~p4_new~0;~p4_new~0 := ~nomsg~0;~p5_old~0 := ~p5_new~0;~p5_new~0 := ~nomsg~0;~p6_old~0 := ~p6_new~0;~p6_new~0 := ~nomsg~0;~p7_old~0 := ~p7_new~0;~p7_new~0 := ~nomsg~0;assume { :begin_inline_check } true;havoc check_#res#1;havoc check_~tmp~1#1;havoc check_~tmp~1#1; 19#L469true assume !(~st1~0 + ~st2~0 + ~st3~0 + ~st4~0 + ~st5~0 + ~st6~0 + ~st7~0 <= 1);check_~tmp~1#1 := 0; 44#L469-1true check_#res#1 := check_~tmp~1#1; 112#L489true main_#t~ret41#1 := check_#res#1;assume { :end_inline_check } true;main_~c1~0#1 := main_#t~ret41#1;havoc main_#t~ret41#1;assume { :begin_inline_assert } true;assert_#in~arg#1 := (if 0 == main_~c1~0#1 then 0 else 1);havoc assert_~arg#1;assert_~arg#1 := assert_#in~arg#1; 127#L581true assume !(0 == assert_~arg#1 % 256); 87#L576true assume { :end_inline_assert } true;main_#t~post42#1 := main_~i2~0#1;main_~i2~0#1 := 1 + main_#t~post42#1;havoc main_#t~post42#1; 73#L545-2true [2021-11-20 07:13:08,679 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 07:13:08,679 INFO L85 PathProgramCache]: Analyzing trace with hash 2087378158, now seen corresponding path program 1 times [2021-11-20 07:13:08,688 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 07:13:08,688 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1293583844] [2021-11-20 07:13:08,689 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 07:13:08,689 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 07:13:08,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:13:08,904 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-20 07:13:08,905 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-20 07:13:08,906 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1293583844] [2021-11-20 07:13:08,907 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1293583844] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 07:13:08,907 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 07:13:08,908 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-11-20 07:13:08,912 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [601850266] [2021-11-20 07:13:08,913 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 07:13:08,917 INFO L796 eck$LassoCheckResult]: stem already infeasible [2021-11-20 07:13:08,923 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 07:13:08,923 INFO L85 PathProgramCache]: Analyzing trace with hash 149051824, now seen corresponding path program 1 times [2021-11-20 07:13:08,923 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 07:13:08,924 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1639584361] [2021-11-20 07:13:08,924 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 07:13:08,924 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 07:13:08,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:13:09,140 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-20 07:13:09,140 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-20 07:13:09,141 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1639584361] [2021-11-20 07:13:09,141 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1639584361] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 07:13:09,141 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 07:13:09,141 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-11-20 07:13:09,141 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1908204714] [2021-11-20 07:13:09,142 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 07:13:09,143 INFO L808 eck$LassoCheckResult]: loop already infeasible [2021-11-20 07:13:09,144 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-20 07:13:09,175 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-20 07:13:09,176 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-20 07:13:09,178 INFO L87 Difference]: Start difference. First operand has 127 states, 126 states have (on average 1.746031746031746) internal successors, (220), 126 states have internal predecessors, (220), 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 5 states, 5 states have (on average 1.4) internal successors, (7), 5 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) [2021-11-20 07:13:09,301 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 07:13:09,301 INFO L93 Difference]: Finished difference Result 130 states and 219 transitions. [2021-11-20 07:13:09,303 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-20 07:13:09,308 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 130 states and 219 transitions. [2021-11-20 07:13:09,314 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 66 [2021-11-20 07:13:09,321 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 130 states to 122 states and 162 transitions. [2021-11-20 07:13:09,322 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 122 [2021-11-20 07:13:09,323 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 122 [2021-11-20 07:13:09,324 INFO L73 IsDeterministic]: Start isDeterministic. Operand 122 states and 162 transitions. [2021-11-20 07:13:09,325 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-11-20 07:13:09,325 INFO L681 BuchiCegarLoop]: Abstraction has 122 states and 162 transitions. [2021-11-20 07:13:09,348 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 122 states and 162 transitions. [2021-11-20 07:13:09,381 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 122 to 122. [2021-11-20 07:13:09,382 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 122 states, 122 states have (on average 1.3278688524590163) internal successors, (162), 121 states have internal predecessors, (162), 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) [2021-11-20 07:13:09,385 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 122 states to 122 states and 162 transitions. [2021-11-20 07:13:09,386 INFO L704 BuchiCegarLoop]: Abstraction has 122 states and 162 transitions. [2021-11-20 07:13:09,386 INFO L587 BuchiCegarLoop]: Abstraction has 122 states and 162 transitions. [2021-11-20 07:13:09,386 INFO L425 BuchiCegarLoop]: ======== Iteration 2============ [2021-11-20 07:13:09,387 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 122 states and 162 transitions. [2021-11-20 07:13:09,407 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 66 [2021-11-20 07:13:09,407 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-11-20 07:13:09,407 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-11-20 07:13:09,410 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-20 07:13:09,410 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-20 07:13:09,411 INFO L791 eck$LassoCheckResult]: Stem: 394#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int(48, 1, 0, 1);call write~init~int(0, 1, 1, 1);call #Ultimate.allocInit(33, 2);call #Ultimate.allocInit(12, 3);~nomsg~0 := -1;~r1~0 := 0;~p1~0 := 0;~p1_old~0 := 0;~p1_new~0 := 0;~id1~0 := 0;~st1~0 := 0;~send1~0 := 0;~mode1~0 := 0;~p2~0 := 0;~p2_old~0 := 0;~p2_new~0 := 0;~id2~0 := 0;~st2~0 := 0;~send2~0 := 0;~mode2~0 := 0;~p3~0 := 0;~p3_old~0 := 0;~p3_new~0 := 0;~id3~0 := 0;~st3~0 := 0;~send3~0 := 0;~mode3~0 := 0;~p4~0 := 0;~p4_old~0 := 0;~p4_new~0 := 0;~id4~0 := 0;~st4~0 := 0;~send4~0 := 0;~mode4~0 := 0;~p5~0 := 0;~p5_old~0 := 0;~p5_new~0 := 0;~id5~0 := 0;~st5~0 := 0;~send5~0 := 0;~mode5~0 := 0;~p6~0 := 0;~p6_old~0 := 0;~p6_new~0 := 0;~id6~0 := 0;~st6~0 := 0;~send6~0 := 0;~mode6~0 := 0;~p7~0 := 0;~p7_old~0 := 0;~p7_new~0 := 0;~id7~0 := 0;~st7~0 := 0;~send7~0 := 0;~mode7~0 := 0; 335#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet11#1, main_#t~nondet12#1, main_#t~nondet13#1, main_#t~nondet14#1, main_#t~nondet15#1, main_#t~nondet16#1, main_#t~nondet17#1, main_#t~nondet18#1, main_#t~nondet19#1, main_#t~nondet20#1, main_#t~nondet21#1, main_#t~nondet22#1, main_#t~nondet23#1, main_#t~nondet24#1, main_#t~nondet25#1, main_#t~nondet26#1, main_#t~nondet27#1, main_#t~nondet28#1, main_#t~nondet29#1, main_#t~nondet30#1, main_#t~nondet31#1, main_#t~nondet32#1, main_#t~nondet33#1, main_#t~nondet34#1, main_#t~nondet35#1, main_#t~nondet36#1, main_#t~nondet37#1, main_#t~nondet38#1, main_#t~nondet39#1, main_#t~ret40#1, main_#t~ret41#1, main_#t~post42#1, main_~c1~0#1, main_~i2~0#1;havoc main_~c1~0#1;havoc main_~i2~0#1;main_~c1~0#1 := 0;~r1~0 := main_#t~nondet11#1;havoc main_#t~nondet11#1;~id1~0 := main_#t~nondet12#1;havoc main_#t~nondet12#1;~st1~0 := main_#t~nondet13#1;havoc main_#t~nondet13#1;~send1~0 := main_#t~nondet14#1;havoc main_#t~nondet14#1;~mode1~0 := main_#t~nondet15#1;havoc main_#t~nondet15#1;~id2~0 := main_#t~nondet16#1;havoc main_#t~nondet16#1;~st2~0 := main_#t~nondet17#1;havoc main_#t~nondet17#1;~send2~0 := main_#t~nondet18#1;havoc main_#t~nondet18#1;~mode2~0 := main_#t~nondet19#1;havoc main_#t~nondet19#1;~id3~0 := main_#t~nondet20#1;havoc main_#t~nondet20#1;~st3~0 := main_#t~nondet21#1;havoc main_#t~nondet21#1;~send3~0 := main_#t~nondet22#1;havoc main_#t~nondet22#1;~mode3~0 := main_#t~nondet23#1;havoc main_#t~nondet23#1;~id4~0 := main_#t~nondet24#1;havoc main_#t~nondet24#1;~st4~0 := main_#t~nondet25#1;havoc main_#t~nondet25#1;~send4~0 := main_#t~nondet26#1;havoc main_#t~nondet26#1;~mode4~0 := main_#t~nondet27#1;havoc main_#t~nondet27#1;~id5~0 := main_#t~nondet28#1;havoc main_#t~nondet28#1;~st5~0 := main_#t~nondet29#1;havoc main_#t~nondet29#1;~send5~0 := main_#t~nondet30#1;havoc main_#t~nondet30#1;~mode5~0 := main_#t~nondet31#1;havoc main_#t~nondet31#1;~id6~0 := main_#t~nondet32#1;havoc main_#t~nondet32#1;~st6~0 := main_#t~nondet33#1;havoc main_#t~nondet33#1;~send6~0 := main_#t~nondet34#1;havoc main_#t~nondet34#1;~mode6~0 := main_#t~nondet35#1;havoc main_#t~nondet35#1;~id7~0 := main_#t~nondet36#1;havoc main_#t~nondet36#1;~st7~0 := main_#t~nondet37#1;havoc main_#t~nondet37#1;~send7~0 := main_#t~nondet38#1;havoc main_#t~nondet38#1;~mode7~0 := main_#t~nondet39#1;havoc main_#t~nondet39#1;assume { :begin_inline_init } true;havoc init_#res#1;havoc init_~tmp~0#1;havoc init_~tmp~0#1; 336#L260 assume 0 == ~r1~0; 369#L261 assume ~id1~0 >= 0; 353#L262 assume 0 == ~st1~0; 354#L263 assume ~send1~0 == ~id1~0; 359#L264 assume 0 == ~mode1~0 % 256; 360#L265 assume ~id2~0 >= 0; 299#L266 assume 0 == ~st2~0; 300#L267 assume ~send2~0 == ~id2~0; 316#L268 assume 0 == ~mode2~0 % 256; 317#L269 assume ~id3~0 >= 0; 295#L270 assume 0 == ~st3~0; 296#L271 assume ~send3~0 == ~id3~0; 326#L272 assume 0 == ~mode3~0 % 256; 341#L273 assume ~id4~0 >= 0; 357#L274 assume 0 == ~st4~0; 384#L275 assume ~send4~0 == ~id4~0; 275#L276 assume 0 == ~mode4~0 % 256; 276#L277 assume ~id5~0 >= 0; 396#L278 assume 0 == ~st5~0; 347#L279 assume ~send5~0 == ~id5~0; 348#L280 assume 0 == ~mode5~0 % 256; 308#L281 assume ~id6~0 >= 0; 279#L282 assume 0 == ~st6~0; 280#L283 assume ~send6~0 == ~id6~0; 361#L284 assume 0 == ~mode6~0 % 256; 362#L285 assume ~id7~0 >= 0; 382#L286 assume 0 == ~st7~0; 368#L287 assume ~send7~0 == ~id7~0; 321#L288 assume 0 == ~mode7~0 % 256; 322#L289 assume ~id1~0 != ~id2~0; 328#L290 assume ~id1~0 != ~id3~0; 374#L291 assume ~id1~0 != ~id4~0; 375#L292 assume ~id1~0 != ~id5~0; 385#L293 assume ~id1~0 != ~id6~0; 392#L294 assume ~id1~0 != ~id7~0; 287#L295 assume ~id2~0 != ~id3~0; 288#L296 assume ~id2~0 != ~id4~0; 327#L297 assume ~id2~0 != ~id5~0; 324#L298 assume ~id2~0 != ~id6~0; 325#L299 assume ~id2~0 != ~id7~0; 334#L300 assume ~id3~0 != ~id4~0; 370#L301 assume ~id3~0 != ~id5~0; 380#L302 assume ~id3~0 != ~id6~0; 381#L303 assume ~id3~0 != ~id7~0; 387#L304 assume ~id4~0 != ~id5~0; 363#L305 assume ~id4~0 != ~id6~0; 364#L306 assume ~id4~0 != ~id7~0; 373#L307 assume ~id5~0 != ~id6~0; 297#L308 assume ~id5~0 != ~id7~0; 298#L309 assume ~id6~0 != ~id7~0;init_~tmp~0#1 := 1; 378#L260-1 init_#res#1 := init_~tmp~0#1; 277#L461 main_#t~ret40#1 := init_#res#1;assume { :end_inline_init } true;main_~i2~0#1 := main_#t~ret40#1;havoc main_#t~ret40#1;assume { :begin_inline_assume_abort_if_not } true;assume_abort_if_not_#in~cond#1 := main_~i2~0#1;havoc assume_abort_if_not_~cond#1;assume_abort_if_not_~cond#1 := assume_abort_if_not_#in~cond#1; 278#L22 assume !(0 == assume_abort_if_not_~cond#1); 340#L21 assume { :end_inline_assume_abort_if_not } true;~p1_old~0 := ~nomsg~0;~p1_new~0 := ~nomsg~0;~p2_old~0 := ~nomsg~0;~p2_new~0 := ~nomsg~0;~p3_old~0 := ~nomsg~0;~p3_new~0 := ~nomsg~0;~p4_old~0 := ~nomsg~0;~p4_new~0 := ~nomsg~0;~p5_old~0 := ~nomsg~0;~p5_new~0 := ~nomsg~0;~p6_old~0 := ~nomsg~0;~p6_new~0 := ~nomsg~0;~p7_old~0 := ~nomsg~0;~p7_new~0 := ~nomsg~0;main_~i2~0#1 := 0; 372#L545-2 [2021-11-20 07:13:09,412 INFO L793 eck$LassoCheckResult]: Loop: 372#L545-2 assume !!(main_~i2~0#1 < 14);assume { :begin_inline_node1 } true;havoc node1_#t~ite4#1, node1_~m1~0#1;havoc node1_~m1~0#1;node1_~m1~0#1 := ~nomsg~0; 331#L85 assume 0 != ~mode1~0 % 256;~r1~0 := (if (1 + ~r1~0) % 256 <= 127 then (1 + ~r1~0) % 256 else (1 + ~r1~0) % 256 - 256);node1_~m1~0#1 := ~p7_old~0;~p7_old~0 := ~nomsg~0; 332#L89 assume !(node1_~m1~0#1 != ~nomsg~0); 330#L89-1 ~mode1~0 := 0; 281#L85-2 assume { :end_inline_node1 } true;assume { :begin_inline_node2 } true;havoc node2_#t~ite5#1, node2_~m2~0#1;havoc node2_~m2~0#1;node2_~m2~0#1 := ~nomsg~0; 282#L111 assume 0 != ~mode2~0 % 256;node2_~m2~0#1 := ~p1_old~0;~p1_old~0 := ~nomsg~0; 314#L114 assume !(node2_~m2~0#1 != ~nomsg~0); 345#L114-1 ~mode2~0 := 0; 366#L111-2 assume { :end_inline_node2 } true;assume { :begin_inline_node3 } true;havoc node3_#t~ite6#1, node3_~m3~0#1;havoc node3_~m3~0#1;node3_~m3~0#1 := ~nomsg~0; 309#L136 assume 0 != ~mode3~0 % 256;node3_~m3~0#1 := ~p2_old~0;~p2_old~0 := ~nomsg~0; 310#L139 assume !(node3_~m3~0#1 != ~nomsg~0); 291#L139-1 ~mode3~0 := 0; 292#L136-2 assume { :end_inline_node3 } true;assume { :begin_inline_node4 } true;havoc node4_#t~ite7#1, node4_~m4~0#1;havoc node4_~m4~0#1;node4_~m4~0#1 := ~nomsg~0; 302#L161 assume !(0 != ~mode4~0 % 256); 304#L174 assume !(~send4~0 != ~nomsg~0 && ~p4_new~0 == ~nomsg~0);node4_#t~ite7#1 := ~p4_new~0; 391#L174-2 ~p4_new~0 := (if node4_#t~ite7#1 % 256 <= 127 then node4_#t~ite7#1 % 256 else node4_#t~ite7#1 % 256 - 256);havoc node4_#t~ite7#1;~mode4~0 := 1; 283#L161-2 assume { :end_inline_node4 } true;assume { :begin_inline_node5 } true;havoc node5_#t~ite8#1, node5_~m5~0#1;havoc node5_~m5~0#1;node5_~m5~0#1 := ~nomsg~0; 284#L186 assume !(0 != ~mode5~0 % 256); 343#L199 assume !(~send5~0 != ~nomsg~0 && ~p5_new~0 == ~nomsg~0);node5_#t~ite8#1 := ~p5_new~0; 344#L199-2 ~p5_new~0 := (if node5_#t~ite8#1 % 256 <= 127 then node5_#t~ite8#1 % 256 else node5_#t~ite8#1 % 256 - 256);havoc node5_#t~ite8#1;~mode5~0 := 1; 293#L186-2 assume { :end_inline_node5 } true;assume { :begin_inline_node6 } true;havoc node6_#t~ite9#1, node6_~m6~0#1;havoc node6_~m6~0#1;node6_~m6~0#1 := ~nomsg~0; 294#L211 assume 0 != ~mode6~0 % 256;node6_~m6~0#1 := ~p5_old~0;~p5_old~0 := ~nomsg~0; 388#L214 assume !(node6_~m6~0#1 != ~nomsg~0); 338#L214-1 ~mode6~0 := 0; 379#L211-2 assume { :end_inline_node6 } true;assume { :begin_inline_node7 } true;havoc node7_#t~ite10#1, node7_~m7~0#1;havoc node7_~m7~0#1;node7_~m7~0#1 := ~nomsg~0; 356#L236 assume 0 != ~mode7~0 % 256;node7_~m7~0#1 := ~p6_old~0;~p6_old~0 := ~nomsg~0; 320#L239 assume !(node7_~m7~0#1 != ~nomsg~0); 312#L239-1 ~mode7~0 := 0; 313#L236-2 assume { :end_inline_node7 } true;~p1_old~0 := ~p1_new~0;~p1_new~0 := ~nomsg~0;~p2_old~0 := ~p2_new~0;~p2_new~0 := ~nomsg~0;~p3_old~0 := ~p3_new~0;~p3_new~0 := ~nomsg~0;~p4_old~0 := ~p4_new~0;~p4_new~0 := ~nomsg~0;~p5_old~0 := ~p5_new~0;~p5_new~0 := ~nomsg~0;~p6_old~0 := ~p6_new~0;~p6_new~0 := ~nomsg~0;~p7_old~0 := ~p7_new~0;~p7_new~0 := ~nomsg~0;assume { :begin_inline_check } true;havoc check_#res#1;havoc check_~tmp~1#1;havoc check_~tmp~1#1; 305#L469 assume !(~st1~0 + ~st2~0 + ~st3~0 + ~st4~0 + ~st5~0 + ~st6~0 + ~st7~0 <= 1);check_~tmp~1#1 := 0; 306#L469-1 check_#res#1 := check_~tmp~1#1; 342#L489 main_#t~ret41#1 := check_#res#1;assume { :end_inline_check } true;main_~c1~0#1 := main_#t~ret41#1;havoc main_#t~ret41#1;assume { :begin_inline_assert } true;assert_#in~arg#1 := (if 0 == main_~c1~0#1 then 0 else 1);havoc assert_~arg#1;assert_~arg#1 := assert_#in~arg#1; 393#L581 assume !(0 == assert_~arg#1 % 256); 383#L576 assume { :end_inline_assert } true;main_#t~post42#1 := main_~i2~0#1;main_~i2~0#1 := 1 + main_#t~post42#1;havoc main_#t~post42#1; 372#L545-2 [2021-11-20 07:13:09,412 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 07:13:09,413 INFO L85 PathProgramCache]: Analyzing trace with hash 292839954, now seen corresponding path program 1 times [2021-11-20 07:13:09,413 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 07:13:09,413 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1068834976] [2021-11-20 07:13:09,413 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 07:13:09,413 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 07:13:09,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-20 07:13:09,487 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-20 07:13:09,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-20 07:13:09,584 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-11-20 07:13:09,585 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 07:13:09,585 INFO L85 PathProgramCache]: Analyzing trace with hash -525374164, now seen corresponding path program 1 times [2021-11-20 07:13:09,585 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 07:13:09,585 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2102914710] [2021-11-20 07:13:09,586 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 07:13:09,586 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 07:13:09,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:13:09,747 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-20 07:13:09,747 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-20 07:13:09,748 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2102914710] [2021-11-20 07:13:09,748 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2102914710] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 07:13:09,748 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 07:13:09,748 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-11-20 07:13:09,749 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1255815219] [2021-11-20 07:13:09,749 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 07:13:09,749 INFO L808 eck$LassoCheckResult]: loop already infeasible [2021-11-20 07:13:09,750 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-20 07:13:09,750 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-20 07:13:09,751 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-20 07:13:09,751 INFO L87 Difference]: Start difference. First operand 122 states and 162 transitions. cyclomatic complexity: 41 Second operand has 5 states, 5 states have (on average 6.8) internal successors, (34), 5 states have internal predecessors, (34), 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) [2021-11-20 07:13:09,831 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 07:13:09,831 INFO L93 Difference]: Finished difference Result 125 states and 164 transitions. [2021-11-20 07:13:09,832 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-20 07:13:09,833 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 125 states and 164 transitions. [2021-11-20 07:13:09,856 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 66 [2021-11-20 07:13:09,858 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 125 states to 122 states and 159 transitions. [2021-11-20 07:13:09,859 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 122 [2021-11-20 07:13:09,860 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 122 [2021-11-20 07:13:09,860 INFO L73 IsDeterministic]: Start isDeterministic. Operand 122 states and 159 transitions. [2021-11-20 07:13:09,861 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-11-20 07:13:09,861 INFO L681 BuchiCegarLoop]: Abstraction has 122 states and 159 transitions. [2021-11-20 07:13:09,861 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 122 states and 159 transitions. [2021-11-20 07:13:09,869 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 122 to 122. [2021-11-20 07:13:09,877 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 122 states, 122 states have (on average 1.3032786885245902) internal successors, (159), 121 states have internal predecessors, (159), 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) [2021-11-20 07:13:09,882 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 122 states to 122 states and 159 transitions. [2021-11-20 07:13:09,888 INFO L704 BuchiCegarLoop]: Abstraction has 122 states and 159 transitions. [2021-11-20 07:13:09,888 INFO L587 BuchiCegarLoop]: Abstraction has 122 states and 159 transitions. [2021-11-20 07:13:09,888 INFO L425 BuchiCegarLoop]: ======== Iteration 3============ [2021-11-20 07:13:09,889 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 122 states and 159 transitions. [2021-11-20 07:13:09,891 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 66 [2021-11-20 07:13:09,892 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-11-20 07:13:09,892 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-11-20 07:13:09,894 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-20 07:13:09,923 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-20 07:13:09,923 INFO L791 eck$LassoCheckResult]: Stem: 653#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int(48, 1, 0, 1);call write~init~int(0, 1, 1, 1);call #Ultimate.allocInit(33, 2);call #Ultimate.allocInit(12, 3);~nomsg~0 := -1;~r1~0 := 0;~p1~0 := 0;~p1_old~0 := 0;~p1_new~0 := 0;~id1~0 := 0;~st1~0 := 0;~send1~0 := 0;~mode1~0 := 0;~p2~0 := 0;~p2_old~0 := 0;~p2_new~0 := 0;~id2~0 := 0;~st2~0 := 0;~send2~0 := 0;~mode2~0 := 0;~p3~0 := 0;~p3_old~0 := 0;~p3_new~0 := 0;~id3~0 := 0;~st3~0 := 0;~send3~0 := 0;~mode3~0 := 0;~p4~0 := 0;~p4_old~0 := 0;~p4_new~0 := 0;~id4~0 := 0;~st4~0 := 0;~send4~0 := 0;~mode4~0 := 0;~p5~0 := 0;~p5_old~0 := 0;~p5_new~0 := 0;~id5~0 := 0;~st5~0 := 0;~send5~0 := 0;~mode5~0 := 0;~p6~0 := 0;~p6_old~0 := 0;~p6_new~0 := 0;~id6~0 := 0;~st6~0 := 0;~send6~0 := 0;~mode6~0 := 0;~p7~0 := 0;~p7_old~0 := 0;~p7_new~0 := 0;~id7~0 := 0;~st7~0 := 0;~send7~0 := 0;~mode7~0 := 0; 593#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet11#1, main_#t~nondet12#1, main_#t~nondet13#1, main_#t~nondet14#1, main_#t~nondet15#1, main_#t~nondet16#1, main_#t~nondet17#1, main_#t~nondet18#1, main_#t~nondet19#1, main_#t~nondet20#1, main_#t~nondet21#1, main_#t~nondet22#1, main_#t~nondet23#1, main_#t~nondet24#1, main_#t~nondet25#1, main_#t~nondet26#1, main_#t~nondet27#1, main_#t~nondet28#1, main_#t~nondet29#1, main_#t~nondet30#1, main_#t~nondet31#1, main_#t~nondet32#1, main_#t~nondet33#1, main_#t~nondet34#1, main_#t~nondet35#1, main_#t~nondet36#1, main_#t~nondet37#1, main_#t~nondet38#1, main_#t~nondet39#1, main_#t~ret40#1, main_#t~ret41#1, main_#t~post42#1, main_~c1~0#1, main_~i2~0#1;havoc main_~c1~0#1;havoc main_~i2~0#1;main_~c1~0#1 := 0;~r1~0 := main_#t~nondet11#1;havoc main_#t~nondet11#1;~id1~0 := main_#t~nondet12#1;havoc main_#t~nondet12#1;~st1~0 := main_#t~nondet13#1;havoc main_#t~nondet13#1;~send1~0 := main_#t~nondet14#1;havoc main_#t~nondet14#1;~mode1~0 := main_#t~nondet15#1;havoc main_#t~nondet15#1;~id2~0 := main_#t~nondet16#1;havoc main_#t~nondet16#1;~st2~0 := main_#t~nondet17#1;havoc main_#t~nondet17#1;~send2~0 := main_#t~nondet18#1;havoc main_#t~nondet18#1;~mode2~0 := main_#t~nondet19#1;havoc main_#t~nondet19#1;~id3~0 := main_#t~nondet20#1;havoc main_#t~nondet20#1;~st3~0 := main_#t~nondet21#1;havoc main_#t~nondet21#1;~send3~0 := main_#t~nondet22#1;havoc main_#t~nondet22#1;~mode3~0 := main_#t~nondet23#1;havoc main_#t~nondet23#1;~id4~0 := main_#t~nondet24#1;havoc main_#t~nondet24#1;~st4~0 := main_#t~nondet25#1;havoc main_#t~nondet25#1;~send4~0 := main_#t~nondet26#1;havoc main_#t~nondet26#1;~mode4~0 := main_#t~nondet27#1;havoc main_#t~nondet27#1;~id5~0 := main_#t~nondet28#1;havoc main_#t~nondet28#1;~st5~0 := main_#t~nondet29#1;havoc main_#t~nondet29#1;~send5~0 := main_#t~nondet30#1;havoc main_#t~nondet30#1;~mode5~0 := main_#t~nondet31#1;havoc main_#t~nondet31#1;~id6~0 := main_#t~nondet32#1;havoc main_#t~nondet32#1;~st6~0 := main_#t~nondet33#1;havoc main_#t~nondet33#1;~send6~0 := main_#t~nondet34#1;havoc main_#t~nondet34#1;~mode6~0 := main_#t~nondet35#1;havoc main_#t~nondet35#1;~id7~0 := main_#t~nondet36#1;havoc main_#t~nondet36#1;~st7~0 := main_#t~nondet37#1;havoc main_#t~nondet37#1;~send7~0 := main_#t~nondet38#1;havoc main_#t~nondet38#1;~mode7~0 := main_#t~nondet39#1;havoc main_#t~nondet39#1;assume { :begin_inline_init } true;havoc init_#res#1;havoc init_~tmp~0#1;havoc init_~tmp~0#1; 594#L260 assume 0 == ~r1~0; 628#L261 assume ~id1~0 >= 0; 612#L262 assume 0 == ~st1~0; 613#L263 assume ~send1~0 == ~id1~0; 618#L264 assume 0 == ~mode1~0 % 256; 619#L265 assume ~id2~0 >= 0; 558#L266 assume 0 == ~st2~0; 559#L267 assume ~send2~0 == ~id2~0; 574#L268 assume 0 == ~mode2~0 % 256; 575#L269 assume ~id3~0 >= 0; 554#L270 assume 0 == ~st3~0; 555#L271 assume ~send3~0 == ~id3~0; 584#L272 assume 0 == ~mode3~0 % 256; 599#L273 assume ~id4~0 >= 0; 615#L274 assume 0 == ~st4~0; 643#L275 assume ~send4~0 == ~id4~0; 534#L276 assume 0 == ~mode4~0 % 256; 535#L277 assume ~id5~0 >= 0; 655#L278 assume 0 == ~st5~0; 606#L279 assume ~send5~0 == ~id5~0; 607#L280 assume 0 == ~mode5~0 % 256; 566#L281 assume ~id6~0 >= 0; 538#L282 assume 0 == ~st6~0; 539#L283 assume ~send6~0 == ~id6~0; 620#L284 assume 0 == ~mode6~0 % 256; 621#L285 assume ~id7~0 >= 0; 641#L286 assume 0 == ~st7~0; 627#L287 assume ~send7~0 == ~id7~0; 578#L288 assume 0 == ~mode7~0 % 256; 579#L289 assume ~id1~0 != ~id2~0; 586#L290 assume ~id1~0 != ~id3~0; 633#L291 assume ~id1~0 != ~id4~0; 634#L292 assume ~id1~0 != ~id5~0; 644#L293 assume ~id1~0 != ~id6~0; 651#L294 assume ~id1~0 != ~id7~0; 546#L295 assume ~id2~0 != ~id3~0; 547#L296 assume ~id2~0 != ~id4~0; 585#L297 assume ~id2~0 != ~id5~0; 582#L298 assume ~id2~0 != ~id6~0; 583#L299 assume ~id2~0 != ~id7~0; 592#L300 assume ~id3~0 != ~id4~0; 629#L301 assume ~id3~0 != ~id5~0; 639#L302 assume ~id3~0 != ~id6~0; 640#L303 assume ~id3~0 != ~id7~0; 646#L304 assume ~id4~0 != ~id5~0; 622#L305 assume ~id4~0 != ~id6~0; 623#L306 assume ~id4~0 != ~id7~0; 632#L307 assume ~id5~0 != ~id6~0; 556#L308 assume ~id5~0 != ~id7~0; 557#L309 assume ~id6~0 != ~id7~0;init_~tmp~0#1 := 1; 637#L260-1 init_#res#1 := init_~tmp~0#1; 536#L461 main_#t~ret40#1 := init_#res#1;assume { :end_inline_init } true;main_~i2~0#1 := main_#t~ret40#1;havoc main_#t~ret40#1;assume { :begin_inline_assume_abort_if_not } true;assume_abort_if_not_#in~cond#1 := main_~i2~0#1;havoc assume_abort_if_not_~cond#1;assume_abort_if_not_~cond#1 := assume_abort_if_not_#in~cond#1; 537#L22 assume !(0 == assume_abort_if_not_~cond#1); 598#L21 assume { :end_inline_assume_abort_if_not } true;~p1_old~0 := ~nomsg~0;~p1_new~0 := ~nomsg~0;~p2_old~0 := ~nomsg~0;~p2_new~0 := ~nomsg~0;~p3_old~0 := ~nomsg~0;~p3_new~0 := ~nomsg~0;~p4_old~0 := ~nomsg~0;~p4_new~0 := ~nomsg~0;~p5_old~0 := ~nomsg~0;~p5_new~0 := ~nomsg~0;~p6_old~0 := ~nomsg~0;~p6_new~0 := ~nomsg~0;~p7_old~0 := ~nomsg~0;~p7_new~0 := ~nomsg~0;main_~i2~0#1 := 0; 631#L545-2 [2021-11-20 07:13:09,923 INFO L793 eck$LassoCheckResult]: Loop: 631#L545-2 assume !!(main_~i2~0#1 < 14);assume { :begin_inline_node1 } true;havoc node1_#t~ite4#1, node1_~m1~0#1;havoc node1_~m1~0#1;node1_~m1~0#1 := ~nomsg~0; 589#L85 assume 0 != ~mode1~0 % 256;~r1~0 := (if (1 + ~r1~0) % 256 <= 127 then (1 + ~r1~0) % 256 else (1 + ~r1~0) % 256 - 256);node1_~m1~0#1 := ~p7_old~0;~p7_old~0 := ~nomsg~0; 590#L89 assume !(node1_~m1~0#1 != ~nomsg~0); 588#L89-1 ~mode1~0 := 0; 540#L85-2 assume { :end_inline_node1 } true;assume { :begin_inline_node2 } true;havoc node2_#t~ite5#1, node2_~m2~0#1;havoc node2_~m2~0#1;node2_~m2~0#1 := ~nomsg~0; 541#L111 assume 0 != ~mode2~0 % 256;node2_~m2~0#1 := ~p1_old~0;~p1_old~0 := ~nomsg~0; 572#L114 assume !(node2_~m2~0#1 != ~nomsg~0); 604#L114-1 ~mode2~0 := 0; 625#L111-2 assume { :end_inline_node2 } true;assume { :begin_inline_node3 } true;havoc node3_#t~ite6#1, node3_~m3~0#1;havoc node3_~m3~0#1;node3_~m3~0#1 := ~nomsg~0; 567#L136 assume 0 != ~mode3~0 % 256;node3_~m3~0#1 := ~p2_old~0;~p2_old~0 := ~nomsg~0; 568#L139 assume !(node3_~m3~0#1 != ~nomsg~0); 550#L139-1 ~mode3~0 := 0; 551#L136-2 assume { :end_inline_node3 } true;assume { :begin_inline_node4 } true;havoc node4_#t~ite7#1, node4_~m4~0#1;havoc node4_~m4~0#1;node4_~m4~0#1 := ~nomsg~0; 561#L161 assume 0 != ~mode4~0 % 256;node4_~m4~0#1 := ~p3_old~0;~p3_old~0 := ~nomsg~0; 562#L164 assume !(node4_~m4~0#1 != ~nomsg~0); 545#L164-1 ~mode4~0 := 0; 542#L161-2 assume { :end_inline_node4 } true;assume { :begin_inline_node5 } true;havoc node5_#t~ite8#1, node5_~m5~0#1;havoc node5_~m5~0#1;node5_~m5~0#1 := ~nomsg~0; 543#L186 assume 0 != ~mode5~0 % 256;node5_~m5~0#1 := ~p4_old~0;~p4_old~0 := ~nomsg~0; 626#L189 assume !(node5_~m5~0#1 != ~nomsg~0); 597#L189-1 ~mode5~0 := 0; 552#L186-2 assume { :end_inline_node5 } true;assume { :begin_inline_node6 } true;havoc node6_#t~ite9#1, node6_~m6~0#1;havoc node6_~m6~0#1;node6_~m6~0#1 := ~nomsg~0; 553#L211 assume 0 != ~mode6~0 % 256;node6_~m6~0#1 := ~p5_old~0;~p5_old~0 := ~nomsg~0; 647#L214 assume !(node6_~m6~0#1 != ~nomsg~0); 596#L214-1 ~mode6~0 := 0; 638#L211-2 assume { :end_inline_node6 } true;assume { :begin_inline_node7 } true;havoc node7_#t~ite10#1, node7_~m7~0#1;havoc node7_~m7~0#1;node7_~m7~0#1 := ~nomsg~0; 616#L236 assume !(0 != ~mode7~0 % 256); 548#L249 assume ~send7~0 != ~nomsg~0 && ~p7_new~0 == ~nomsg~0;node7_#t~ite10#1 := ~send7~0; 549#L249-2 ~p7_new~0 := (if node7_#t~ite10#1 % 256 <= 127 then node7_#t~ite10#1 % 256 else node7_#t~ite10#1 % 256 - 256);havoc node7_#t~ite10#1;~mode7~0 := 1; 571#L236-2 assume { :end_inline_node7 } true;~p1_old~0 := ~p1_new~0;~p1_new~0 := ~nomsg~0;~p2_old~0 := ~p2_new~0;~p2_new~0 := ~nomsg~0;~p3_old~0 := ~p3_new~0;~p3_new~0 := ~nomsg~0;~p4_old~0 := ~p4_new~0;~p4_new~0 := ~nomsg~0;~p5_old~0 := ~p5_new~0;~p5_new~0 := ~nomsg~0;~p6_old~0 := ~p6_new~0;~p6_new~0 := ~nomsg~0;~p7_old~0 := ~p7_new~0;~p7_new~0 := ~nomsg~0;assume { :begin_inline_check } true;havoc check_#res#1;havoc check_~tmp~1#1;havoc check_~tmp~1#1; 564#L469 assume ~st1~0 + ~st2~0 + ~st3~0 + ~st4~0 + ~st5~0 + ~st6~0 + ~st7~0 <= 1; 565#L470 assume ~r1~0 >= 7; 608#L474 assume ~r1~0 < 7;check_~tmp~1#1 := 1; 600#L469-1 check_#res#1 := check_~tmp~1#1; 601#L489 main_#t~ret41#1 := check_#res#1;assume { :end_inline_check } true;main_~c1~0#1 := main_#t~ret41#1;havoc main_#t~ret41#1;assume { :begin_inline_assert } true;assert_#in~arg#1 := (if 0 == main_~c1~0#1 then 0 else 1);havoc assert_~arg#1;assert_~arg#1 := assert_#in~arg#1; 652#L581 assume !(0 == assert_~arg#1 % 256); 642#L576 assume { :end_inline_assert } true;main_#t~post42#1 := main_~i2~0#1;main_~i2~0#1 := 1 + main_#t~post42#1;havoc main_#t~post42#1; 631#L545-2 [2021-11-20 07:13:09,924 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 07:13:09,924 INFO L85 PathProgramCache]: Analyzing trace with hash 292839954, now seen corresponding path program 2 times [2021-11-20 07:13:09,924 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 07:13:09,925 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1944701864] [2021-11-20 07:13:09,925 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 07:13:09,925 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 07:13:09,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-20 07:13:09,986 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-20 07:13:10,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-20 07:13:10,061 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-11-20 07:13:10,062 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 07:13:10,062 INFO L85 PathProgramCache]: Analyzing trace with hash -602955094, now seen corresponding path program 1 times [2021-11-20 07:13:10,063 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 07:13:10,063 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1897129714] [2021-11-20 07:13:10,063 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 07:13:10,063 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 07:13:10,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:13:10,097 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-20 07:13:10,098 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-20 07:13:10,098 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1897129714] [2021-11-20 07:13:10,098 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1897129714] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 07:13:10,099 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 07:13:10,099 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-20 07:13:10,099 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1718058338] [2021-11-20 07:13:10,099 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 07:13:10,100 INFO L808 eck$LassoCheckResult]: loop already infeasible [2021-11-20 07:13:10,100 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-20 07:13:10,100 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-20 07:13:10,101 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-20 07:13:10,101 INFO L87 Difference]: Start difference. First operand 122 states and 159 transitions. cyclomatic complexity: 38 Second operand has 3 states, 3 states have (on average 12.0) internal successors, (36), 3 states have internal predecessors, (36), 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) [2021-11-20 07:13:10,127 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 07:13:10,127 INFO L93 Difference]: Finished difference Result 182 states and 251 transitions. [2021-11-20 07:13:10,128 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-20 07:13:10,129 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 182 states and 251 transitions. [2021-11-20 07:13:10,131 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 126 [2021-11-20 07:13:10,134 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 182 states to 182 states and 251 transitions. [2021-11-20 07:13:10,134 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 182 [2021-11-20 07:13:10,135 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 182 [2021-11-20 07:13:10,135 INFO L73 IsDeterministic]: Start isDeterministic. Operand 182 states and 251 transitions. [2021-11-20 07:13:10,137 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-11-20 07:13:10,137 INFO L681 BuchiCegarLoop]: Abstraction has 182 states and 251 transitions. [2021-11-20 07:13:10,137 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 182 states and 251 transitions. [2021-11-20 07:13:10,147 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 182 to 182. [2021-11-20 07:13:10,148 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 182 states, 182 states have (on average 1.379120879120879) internal successors, (251), 181 states have internal predecessors, (251), 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) [2021-11-20 07:13:10,150 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 182 states to 182 states and 251 transitions. [2021-11-20 07:13:10,150 INFO L704 BuchiCegarLoop]: Abstraction has 182 states and 251 transitions. [2021-11-20 07:13:10,150 INFO L587 BuchiCegarLoop]: Abstraction has 182 states and 251 transitions. [2021-11-20 07:13:10,150 INFO L425 BuchiCegarLoop]: ======== Iteration 4============ [2021-11-20 07:13:10,150 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 182 states and 251 transitions. [2021-11-20 07:13:10,152 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 126 [2021-11-20 07:13:10,152 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-11-20 07:13:10,153 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-11-20 07:13:10,155 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-20 07:13:10,155 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-20 07:13:10,156 INFO L791 eck$LassoCheckResult]: Stem: 964#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int(48, 1, 0, 1);call write~init~int(0, 1, 1, 1);call #Ultimate.allocInit(33, 2);call #Ultimate.allocInit(12, 3);~nomsg~0 := -1;~r1~0 := 0;~p1~0 := 0;~p1_old~0 := 0;~p1_new~0 := 0;~id1~0 := 0;~st1~0 := 0;~send1~0 := 0;~mode1~0 := 0;~p2~0 := 0;~p2_old~0 := 0;~p2_new~0 := 0;~id2~0 := 0;~st2~0 := 0;~send2~0 := 0;~mode2~0 := 0;~p3~0 := 0;~p3_old~0 := 0;~p3_new~0 := 0;~id3~0 := 0;~st3~0 := 0;~send3~0 := 0;~mode3~0 := 0;~p4~0 := 0;~p4_old~0 := 0;~p4_new~0 := 0;~id4~0 := 0;~st4~0 := 0;~send4~0 := 0;~mode4~0 := 0;~p5~0 := 0;~p5_old~0 := 0;~p5_new~0 := 0;~id5~0 := 0;~st5~0 := 0;~send5~0 := 0;~mode5~0 := 0;~p6~0 := 0;~p6_old~0 := 0;~p6_new~0 := 0;~id6~0 := 0;~st6~0 := 0;~send6~0 := 0;~mode6~0 := 0;~p7~0 := 0;~p7_old~0 := 0;~p7_new~0 := 0;~id7~0 := 0;~st7~0 := 0;~send7~0 := 0;~mode7~0 := 0; 903#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet11#1, main_#t~nondet12#1, main_#t~nondet13#1, main_#t~nondet14#1, main_#t~nondet15#1, main_#t~nondet16#1, main_#t~nondet17#1, main_#t~nondet18#1, main_#t~nondet19#1, main_#t~nondet20#1, main_#t~nondet21#1, main_#t~nondet22#1, main_#t~nondet23#1, main_#t~nondet24#1, main_#t~nondet25#1, main_#t~nondet26#1, main_#t~nondet27#1, main_#t~nondet28#1, main_#t~nondet29#1, main_#t~nondet30#1, main_#t~nondet31#1, main_#t~nondet32#1, main_#t~nondet33#1, main_#t~nondet34#1, main_#t~nondet35#1, main_#t~nondet36#1, main_#t~nondet37#1, main_#t~nondet38#1, main_#t~nondet39#1, main_#t~ret40#1, main_#t~ret41#1, main_#t~post42#1, main_~c1~0#1, main_~i2~0#1;havoc main_~c1~0#1;havoc main_~i2~0#1;main_~c1~0#1 := 0;~r1~0 := main_#t~nondet11#1;havoc main_#t~nondet11#1;~id1~0 := main_#t~nondet12#1;havoc main_#t~nondet12#1;~st1~0 := main_#t~nondet13#1;havoc main_#t~nondet13#1;~send1~0 := main_#t~nondet14#1;havoc main_#t~nondet14#1;~mode1~0 := main_#t~nondet15#1;havoc main_#t~nondet15#1;~id2~0 := main_#t~nondet16#1;havoc main_#t~nondet16#1;~st2~0 := main_#t~nondet17#1;havoc main_#t~nondet17#1;~send2~0 := main_#t~nondet18#1;havoc main_#t~nondet18#1;~mode2~0 := main_#t~nondet19#1;havoc main_#t~nondet19#1;~id3~0 := main_#t~nondet20#1;havoc main_#t~nondet20#1;~st3~0 := main_#t~nondet21#1;havoc main_#t~nondet21#1;~send3~0 := main_#t~nondet22#1;havoc main_#t~nondet22#1;~mode3~0 := main_#t~nondet23#1;havoc main_#t~nondet23#1;~id4~0 := main_#t~nondet24#1;havoc main_#t~nondet24#1;~st4~0 := main_#t~nondet25#1;havoc main_#t~nondet25#1;~send4~0 := main_#t~nondet26#1;havoc main_#t~nondet26#1;~mode4~0 := main_#t~nondet27#1;havoc main_#t~nondet27#1;~id5~0 := main_#t~nondet28#1;havoc main_#t~nondet28#1;~st5~0 := main_#t~nondet29#1;havoc main_#t~nondet29#1;~send5~0 := main_#t~nondet30#1;havoc main_#t~nondet30#1;~mode5~0 := main_#t~nondet31#1;havoc main_#t~nondet31#1;~id6~0 := main_#t~nondet32#1;havoc main_#t~nondet32#1;~st6~0 := main_#t~nondet33#1;havoc main_#t~nondet33#1;~send6~0 := main_#t~nondet34#1;havoc main_#t~nondet34#1;~mode6~0 := main_#t~nondet35#1;havoc main_#t~nondet35#1;~id7~0 := main_#t~nondet36#1;havoc main_#t~nondet36#1;~st7~0 := main_#t~nondet37#1;havoc main_#t~nondet37#1;~send7~0 := main_#t~nondet38#1;havoc main_#t~nondet38#1;~mode7~0 := main_#t~nondet39#1;havoc main_#t~nondet39#1;assume { :begin_inline_init } true;havoc init_#res#1;havoc init_~tmp~0#1;havoc init_~tmp~0#1; 904#L260 assume 0 == ~r1~0; 939#L261 assume ~id1~0 >= 0; 924#L262 assume 0 == ~st1~0; 925#L263 assume ~send1~0 == ~id1~0; 929#L264 assume 0 == ~mode1~0 % 256; 930#L265 assume ~id2~0 >= 0; 869#L266 assume 0 == ~st2~0; 870#L267 assume ~send2~0 == ~id2~0; 884#L268 assume 0 == ~mode2~0 % 256; 885#L269 assume ~id3~0 >= 0; 864#L270 assume 0 == ~st3~0; 865#L271 assume ~send3~0 == ~id3~0; 894#L272 assume 0 == ~mode3~0 % 256; 909#L273 assume ~id4~0 >= 0; 927#L274 assume 0 == ~st4~0; 954#L275 assume ~send4~0 == ~id4~0; 844#L276 assume 0 == ~mode4~0 % 256; 845#L277 assume ~id5~0 >= 0; 970#L278 assume 0 == ~st5~0; 917#L279 assume ~send5~0 == ~id5~0; 918#L280 assume 0 == ~mode5~0 % 256; 876#L281 assume ~id6~0 >= 0; 848#L282 assume 0 == ~st6~0; 849#L283 assume ~send6~0 == ~id6~0; 931#L284 assume 0 == ~mode6~0 % 256; 932#L285 assume ~id7~0 >= 0; 952#L286 assume 0 == ~st7~0; 938#L287 assume ~send7~0 == ~id7~0; 889#L288 assume 0 == ~mode7~0 % 256; 890#L289 assume ~id1~0 != ~id2~0; 896#L290 assume ~id1~0 != ~id3~0; 944#L291 assume ~id1~0 != ~id4~0; 945#L292 assume ~id1~0 != ~id5~0; 955#L293 assume ~id1~0 != ~id6~0; 962#L294 assume ~id1~0 != ~id7~0; 856#L295 assume ~id2~0 != ~id3~0; 857#L296 assume ~id2~0 != ~id4~0; 895#L297 assume ~id2~0 != ~id5~0; 892#L298 assume ~id2~0 != ~id6~0; 893#L299 assume ~id2~0 != ~id7~0; 902#L300 assume ~id3~0 != ~id4~0; 940#L301 assume ~id3~0 != ~id5~0; 950#L302 assume ~id3~0 != ~id6~0; 951#L303 assume ~id3~0 != ~id7~0; 958#L304 assume ~id4~0 != ~id5~0; 933#L305 assume ~id4~0 != ~id6~0; 934#L306 assume ~id4~0 != ~id7~0; 943#L307 assume ~id5~0 != ~id6~0; 866#L308 assume ~id5~0 != ~id7~0; 867#L309 assume ~id6~0 != ~id7~0;init_~tmp~0#1 := 1; 948#L260-1 init_#res#1 := init_~tmp~0#1; 846#L461 main_#t~ret40#1 := init_#res#1;assume { :end_inline_init } true;main_~i2~0#1 := main_#t~ret40#1;havoc main_#t~ret40#1;assume { :begin_inline_assume_abort_if_not } true;assume_abort_if_not_#in~cond#1 := main_~i2~0#1;havoc assume_abort_if_not_~cond#1;assume_abort_if_not_~cond#1 := assume_abort_if_not_#in~cond#1; 847#L22 assume !(0 == assume_abort_if_not_~cond#1); 908#L21 assume { :end_inline_assume_abort_if_not } true;~p1_old~0 := ~nomsg~0;~p1_new~0 := ~nomsg~0;~p2_old~0 := ~nomsg~0;~p2_new~0 := ~nomsg~0;~p3_old~0 := ~nomsg~0;~p3_new~0 := ~nomsg~0;~p4_old~0 := ~nomsg~0;~p4_new~0 := ~nomsg~0;~p5_old~0 := ~nomsg~0;~p5_new~0 := ~nomsg~0;~p6_old~0 := ~nomsg~0;~p6_new~0 := ~nomsg~0;~p7_old~0 := ~nomsg~0;~p7_new~0 := ~nomsg~0;main_~i2~0#1 := 0; 957#L545-2 [2021-11-20 07:13:10,156 INFO L793 eck$LassoCheckResult]: Loop: 957#L545-2 assume !!(main_~i2~0#1 < 14);assume { :begin_inline_node1 } true;havoc node1_#t~ite4#1, node1_~m1~0#1;havoc node1_~m1~0#1;node1_~m1~0#1 := ~nomsg~0; 1021#L85 assume 0 != ~mode1~0 % 256;~r1~0 := (if (1 + ~r1~0) % 256 <= 127 then (1 + ~r1~0) % 256 else (1 + ~r1~0) % 256 - 256);node1_~m1~0#1 := ~p7_old~0;~p7_old~0 := ~nomsg~0; 900#L89 assume !(node1_~m1~0#1 != ~nomsg~0); 898#L89-1 ~mode1~0 := 0; 912#L85-2 assume { :end_inline_node1 } true;assume { :begin_inline_node2 } true;havoc node2_#t~ite5#1, node2_~m2~0#1;havoc node2_~m2~0#1;node2_~m2~0#1 := ~nomsg~0; 1018#L111 assume 0 != ~mode2~0 % 256;node2_~m2~0#1 := ~p1_old~0;~p1_old~0 := ~nomsg~0; 1015#L114 assume !(node2_~m2~0#1 != ~nomsg~0); 1013#L114-1 ~mode2~0 := 0; 1011#L111-2 assume { :end_inline_node2 } true;assume { :begin_inline_node3 } true;havoc node3_#t~ite6#1, node3_~m3~0#1;havoc node3_~m3~0#1;node3_~m3~0#1 := ~nomsg~0; 1010#L136 assume !(0 != ~mode3~0 % 256); 1009#L149 assume ~send3~0 != ~nomsg~0 && ~p3_new~0 == ~nomsg~0;node3_#t~ite6#1 := ~send3~0; 1004#L149-2 ~p3_new~0 := (if node3_#t~ite6#1 % 256 <= 127 then node3_#t~ite6#1 % 256 else node3_#t~ite6#1 % 256 - 256);havoc node3_#t~ite6#1;~mode3~0 := 1; 1003#L136-2 assume { :end_inline_node3 } true;assume { :begin_inline_node4 } true;havoc node4_#t~ite7#1, node4_~m4~0#1;havoc node4_~m4~0#1;node4_~m4~0#1 := ~nomsg~0; 1002#L161 assume 0 != ~mode4~0 % 256;node4_~m4~0#1 := ~p3_old~0;~p3_old~0 := ~nomsg~0; 1000#L164 assume !(node4_~m4~0#1 != ~nomsg~0); 998#L164-1 ~mode4~0 := 0; 997#L161-2 assume { :end_inline_node4 } true;assume { :begin_inline_node5 } true;havoc node5_#t~ite8#1, node5_~m5~0#1;havoc node5_~m5~0#1;node5_~m5~0#1 := ~nomsg~0; 996#L186 assume 0 != ~mode5~0 % 256;node5_~m5~0#1 := ~p4_old~0;~p4_old~0 := ~nomsg~0; 993#L189 assume !(node5_~m5~0#1 != ~nomsg~0); 991#L189-1 ~mode5~0 := 0; 989#L186-2 assume { :end_inline_node5 } true;assume { :begin_inline_node6 } true;havoc node6_#t~ite9#1, node6_~m6~0#1;havoc node6_~m6~0#1;node6_~m6~0#1 := ~nomsg~0; 988#L211 assume 0 != ~mode6~0 % 256;node6_~m6~0#1 := ~p5_old~0;~p5_old~0 := ~nomsg~0; 985#L214 assume !(node6_~m6~0#1 != ~nomsg~0); 983#L214-1 ~mode6~0 := 0; 981#L211-2 assume { :end_inline_node6 } true;assume { :begin_inline_node7 } true;havoc node7_#t~ite10#1, node7_~m7~0#1;havoc node7_~m7~0#1;node7_~m7~0#1 := ~nomsg~0; 980#L236 assume 0 != ~mode7~0 % 256;node7_~m7~0#1 := ~p6_old~0;~p6_old~0 := ~nomsg~0; 978#L239 assume !(node7_~m7~0#1 != ~nomsg~0); 975#L239-1 ~mode7~0 := 0; 973#L236-2 assume { :end_inline_node7 } true;~p1_old~0 := ~p1_new~0;~p1_new~0 := ~nomsg~0;~p2_old~0 := ~p2_new~0;~p2_new~0 := ~nomsg~0;~p3_old~0 := ~p3_new~0;~p3_new~0 := ~nomsg~0;~p4_old~0 := ~p4_new~0;~p4_new~0 := ~nomsg~0;~p5_old~0 := ~p5_new~0;~p5_new~0 := ~nomsg~0;~p6_old~0 := ~p6_new~0;~p6_new~0 := ~nomsg~0;~p7_old~0 := ~p7_new~0;~p7_new~0 := ~nomsg~0;assume { :begin_inline_check } true;havoc check_#res#1;havoc check_~tmp~1#1;havoc check_~tmp~1#1; 972#L469 assume ~st1~0 + ~st2~0 + ~st3~0 + ~st4~0 + ~st5~0 + ~st6~0 + ~st7~0 <= 1; 971#L470 assume !(~r1~0 >= 7); 965#L473 assume 0 == ~st1~0 + ~st2~0 + ~st3~0 + ~st4~0 + ~st5~0 + ~st6~0 + ~st7~0; 966#L474 assume ~r1~0 < 7;check_~tmp~1#1 := 1; 1025#L469-1 check_#res#1 := check_~tmp~1#1; 1024#L489 main_#t~ret41#1 := check_#res#1;assume { :end_inline_check } true;main_~c1~0#1 := main_#t~ret41#1;havoc main_#t~ret41#1;assume { :begin_inline_assert } true;assert_#in~arg#1 := (if 0 == main_~c1~0#1 then 0 else 1);havoc assert_~arg#1;assert_~arg#1 := assert_#in~arg#1; 1023#L581 assume !(0 == assert_~arg#1 % 256); 1022#L576 assume { :end_inline_assert } true;main_#t~post42#1 := main_~i2~0#1;main_~i2~0#1 := 1 + main_#t~post42#1;havoc main_#t~post42#1; 957#L545-2 [2021-11-20 07:13:10,157 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 07:13:10,157 INFO L85 PathProgramCache]: Analyzing trace with hash 292839954, now seen corresponding path program 3 times [2021-11-20 07:13:10,157 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 07:13:10,157 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [472571992] [2021-11-20 07:13:10,158 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 07:13:10,158 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 07:13:10,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-20 07:13:10,207 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-20 07:13:10,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-20 07:13:10,268 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-11-20 07:13:10,269 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 07:13:10,270 INFO L85 PathProgramCache]: Analyzing trace with hash 931303707, now seen corresponding path program 1 times [2021-11-20 07:13:10,270 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 07:13:10,271 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1447052089] [2021-11-20 07:13:10,271 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 07:13:10,271 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 07:13:10,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-20 07:13:10,309 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-20 07:13:10,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-20 07:13:10,348 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-11-20 07:13:10,358 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 07:13:10,358 INFO L85 PathProgramCache]: Analyzing trace with hash -721431126, now seen corresponding path program 1 times [2021-11-20 07:13:10,358 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 07:13:10,359 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [746409305] [2021-11-20 07:13:10,359 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 07:13:10,359 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 07:13:10,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:13:10,434 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-20 07:13:10,434 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-20 07:13:10,435 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [746409305] [2021-11-20 07:13:10,435 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [746409305] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 07:13:10,436 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 07:13:10,436 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-20 07:13:10,437 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [855762694] [2021-11-20 07:13:10,440 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 07:13:12,258 INFO L210 LassoAnalysis]: Preferences: [2021-11-20 07:13:12,259 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-11-20 07:13:12,259 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-11-20 07:13:12,259 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-11-20 07:13:12,259 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2021-11-20 07:13:12,260 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-20 07:13:12,260 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-11-20 07:13:12,260 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-11-20 07:13:12,260 INFO L133 ssoRankerPreferences]: Filename of dumped script: pals_lcr.7.ufo.BOUNDED-14.pals.c_Iteration4_Loop [2021-11-20 07:13:12,260 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-11-20 07:13:12,260 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-11-20 07:13:12,285 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-20 07:13:12,293 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-20 07:13:12,294 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-20 07:13:12,296 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-20 07:13:12,309 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-20 07:13:12,311 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-20 07:13:12,316 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-20 07:13:12,321 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-20 07:13:12,323 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-20 07:13:12,327 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-20 07:13:12,329 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-20 07:13:12,331 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-20 07:13:12,500 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-20 07:13:12,507 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-20 07:13:12,509 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-20 07:13:12,513 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-20 07:13:12,517 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-20 07:13:12,519 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-20 07:13:12,525 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-20 07:13:12,530 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-20 07:13:12,534 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-20 07:13:12,535 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-20 07:13:14,951 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-11-20 07:13:14,952 INFO L404 LassoAnalysis]: Checking for nontermination... [2021-11-20 07:13:14,954 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-20 07:13:14,954 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_555edb77-3c80-4b1b-99c5-aa7ff6b25ecc/bin/uautomizer-DQz5hQGWxF/z3 [2021-11-20 07:13:14,960 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_555edb77-3c80-4b1b-99c5-aa7ff6b25ecc/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-20 07:13:14,968 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_555edb77-3c80-4b1b-99c5-aa7ff6b25ecc/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Waiting until timeout for monitored process [2021-11-20 07:13:14,972 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-11-20 07:13:14,972 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-11-20 07:13:15,040 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_555edb77-3c80-4b1b-99c5-aa7ff6b25ecc/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Forceful destruction successful, exit code 0 [2021-11-20 07:13:15,040 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-20 07:13:15,040 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_555edb77-3c80-4b1b-99c5-aa7ff6b25ecc/bin/uautomizer-DQz5hQGWxF/z3 [2021-11-20 07:13:15,041 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_555edb77-3c80-4b1b-99c5-aa7ff6b25ecc/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-20 07:13:15,047 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2021-11-20 07:13:15,048 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-11-20 07:13:15,075 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_555edb77-3c80-4b1b-99c5-aa7ff6b25ecc/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Waiting until timeout for monitored process [2021-11-20 07:13:15,212 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2021-11-20 07:13:15,215 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_555edb77-3c80-4b1b-99c5-aa7ff6b25ecc/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Forceful destruction successful, exit code 0 [2021-11-20 07:13:15,216 INFO L210 LassoAnalysis]: Preferences: [2021-11-20 07:13:15,216 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-11-20 07:13:15,216 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-11-20 07:13:15,216 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-11-20 07:13:15,216 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2021-11-20 07:13:15,216 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-20 07:13:15,216 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-11-20 07:13:15,216 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-11-20 07:13:15,216 INFO L133 ssoRankerPreferences]: Filename of dumped script: pals_lcr.7.ufo.BOUNDED-14.pals.c_Iteration4_Loop [2021-11-20 07:13:15,216 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-11-20 07:13:15,217 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-11-20 07:13:15,221 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-20 07:13:15,240 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-20 07:13:15,243 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-20 07:13:15,245 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-20 07:13:15,256 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-20 07:13:15,258 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-20 07:13:15,262 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-20 07:13:15,266 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-20 07:13:15,268 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-20 07:13:15,271 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-20 07:13:15,273 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-20 07:13:15,452 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-20 07:13:15,458 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-20 07:13:15,463 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-20 07:13:15,465 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-20 07:13:15,469 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-20 07:13:15,473 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-20 07:13:15,474 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-20 07:13:15,476 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-20 07:13:15,479 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-20 07:13:15,483 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-20 07:13:15,487 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-20 07:13:17,775 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-11-20 07:13:17,779 INFO L490 LassoAnalysis]: Using template 'affine'. [2021-11-20 07:13:17,781 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-20 07:13:17,781 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_555edb77-3c80-4b1b-99c5-aa7ff6b25ecc/bin/uautomizer-DQz5hQGWxF/z3 [2021-11-20 07:13:17,785 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_555edb77-3c80-4b1b-99c5-aa7ff6b25ecc/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-20 07:13:17,785 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_555edb77-3c80-4b1b-99c5-aa7ff6b25ecc/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Waiting until timeout for monitored process [2021-11-20 07:13:17,789 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 [2021-11-20 07:13:17,796 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-20 07:13:17,796 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-11-20 07:13:17,797 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-20 07:13:17,797 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-20 07:13:17,797 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-20 07:13:17,799 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-11-20 07:13:17,799 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-11-20 07:13:17,803 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-11-20 07:13:17,825 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_555edb77-3c80-4b1b-99c5-aa7ff6b25ecc/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Forceful destruction successful, exit code 0 [2021-11-20 07:13:17,825 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-20 07:13:17,825 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_555edb77-3c80-4b1b-99c5-aa7ff6b25ecc/bin/uautomizer-DQz5hQGWxF/z3 [2021-11-20 07:13:17,826 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_555edb77-3c80-4b1b-99c5-aa7ff6b25ecc/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-20 07:13:17,827 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_555edb77-3c80-4b1b-99c5-aa7ff6b25ecc/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Waiting until timeout for monitored process [2021-11-20 07:13:17,830 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 [2021-11-20 07:13:17,837 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-20 07:13:17,837 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-11-20 07:13:17,837 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-20 07:13:17,837 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-20 07:13:17,837 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-20 07:13:17,838 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-11-20 07:13:17,838 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-11-20 07:13:17,859 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-11-20 07:13:17,893 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_555edb77-3c80-4b1b-99c5-aa7ff6b25ecc/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Forceful destruction successful, exit code 0 [2021-11-20 07:13:17,894 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-20 07:13:17,894 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_555edb77-3c80-4b1b-99c5-aa7ff6b25ecc/bin/uautomizer-DQz5hQGWxF/z3 [2021-11-20 07:13:17,894 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_555edb77-3c80-4b1b-99c5-aa7ff6b25ecc/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-20 07:13:17,895 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_555edb77-3c80-4b1b-99c5-aa7ff6b25ecc/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Waiting until timeout for monitored process [2021-11-20 07:13:17,896 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 [2021-11-20 07:13:17,904 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-20 07:13:17,904 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-11-20 07:13:17,904 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-20 07:13:17,904 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-20 07:13:17,904 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-20 07:13:17,905 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-11-20 07:13:17,905 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-11-20 07:13:17,906 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-11-20 07:13:17,930 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_555edb77-3c80-4b1b-99c5-aa7ff6b25ecc/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Forceful destruction successful, exit code 0 [2021-11-20 07:13:17,931 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-20 07:13:17,931 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_555edb77-3c80-4b1b-99c5-aa7ff6b25ecc/bin/uautomizer-DQz5hQGWxF/z3 [2021-11-20 07:13:17,933 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_555edb77-3c80-4b1b-99c5-aa7ff6b25ecc/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-20 07:13:17,934 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_555edb77-3c80-4b1b-99c5-aa7ff6b25ecc/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Waiting until timeout for monitored process [2021-11-20 07:13:17,935 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-11-20 07:13:17,942 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-20 07:13:17,942 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-11-20 07:13:17,942 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-20 07:13:17,942 INFO L204 nArgumentSynthesizer]: 2 loop disjuncts [2021-11-20 07:13:17,942 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-20 07:13:17,944 INFO L401 nArgumentSynthesizer]: We have 4 Motzkin's Theorem applications. [2021-11-20 07:13:17,944 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-11-20 07:13:17,947 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-11-20 07:13:17,969 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_555edb77-3c80-4b1b-99c5-aa7ff6b25ecc/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Forceful destruction successful, exit code 0 [2021-11-20 07:13:17,969 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-20 07:13:17,969 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_555edb77-3c80-4b1b-99c5-aa7ff6b25ecc/bin/uautomizer-DQz5hQGWxF/z3 [2021-11-20 07:13:17,970 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_555edb77-3c80-4b1b-99c5-aa7ff6b25ecc/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-20 07:13:17,971 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_555edb77-3c80-4b1b-99c5-aa7ff6b25ecc/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Waiting until timeout for monitored process [2021-11-20 07:13:17,975 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 [2021-11-20 07:13:17,982 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-20 07:13:17,982 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-11-20 07:13:17,982 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-20 07:13:17,982 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-20 07:13:17,982 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-20 07:13:17,983 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-11-20 07:13:17,983 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-11-20 07:13:18,005 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-11-20 07:13:18,025 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_555edb77-3c80-4b1b-99c5-aa7ff6b25ecc/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Forceful destruction successful, exit code 0 [2021-11-20 07:13:18,025 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-20 07:13:18,025 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_555edb77-3c80-4b1b-99c5-aa7ff6b25ecc/bin/uautomizer-DQz5hQGWxF/z3 [2021-11-20 07:13:18,026 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_555edb77-3c80-4b1b-99c5-aa7ff6b25ecc/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-20 07:13:18,027 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_555edb77-3c80-4b1b-99c5-aa7ff6b25ecc/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Waiting until timeout for monitored process [2021-11-20 07:13:18,027 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 [2021-11-20 07:13:18,034 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-20 07:13:18,034 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-11-20 07:13:18,034 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-20 07:13:18,035 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-20 07:13:18,035 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-20 07:13:18,036 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-11-20 07:13:18,036 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-11-20 07:13:18,040 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-11-20 07:13:18,062 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_555edb77-3c80-4b1b-99c5-aa7ff6b25ecc/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Forceful destruction successful, exit code 0 [2021-11-20 07:13:18,062 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-20 07:13:18,063 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_555edb77-3c80-4b1b-99c5-aa7ff6b25ecc/bin/uautomizer-DQz5hQGWxF/z3 [2021-11-20 07:13:18,063 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_555edb77-3c80-4b1b-99c5-aa7ff6b25ecc/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-20 07:13:18,064 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_555edb77-3c80-4b1b-99c5-aa7ff6b25ecc/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Waiting until timeout for monitored process [2021-11-20 07:13:18,065 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 [2021-11-20 07:13:18,072 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-20 07:13:18,072 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-11-20 07:13:18,072 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-20 07:13:18,072 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-20 07:13:18,072 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-20 07:13:18,073 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-11-20 07:13:18,073 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-11-20 07:13:18,075 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-11-20 07:13:18,094 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_555edb77-3c80-4b1b-99c5-aa7ff6b25ecc/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Forceful destruction successful, exit code 0 [2021-11-20 07:13:18,094 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-20 07:13:18,094 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_555edb77-3c80-4b1b-99c5-aa7ff6b25ecc/bin/uautomizer-DQz5hQGWxF/z3 [2021-11-20 07:13:18,095 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_555edb77-3c80-4b1b-99c5-aa7ff6b25ecc/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-20 07:13:18,097 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_555edb77-3c80-4b1b-99c5-aa7ff6b25ecc/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Waiting until timeout for monitored process [2021-11-20 07:13:18,097 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 [2021-11-20 07:13:18,104 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-20 07:13:18,104 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-11-20 07:13:18,105 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-20 07:13:18,105 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-20 07:13:18,105 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-20 07:13:18,105 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-11-20 07:13:18,105 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-11-20 07:13:18,106 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-11-20 07:13:18,124 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_555edb77-3c80-4b1b-99c5-aa7ff6b25ecc/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Forceful destruction successful, exit code 0 [2021-11-20 07:13:18,125 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-20 07:13:18,125 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_555edb77-3c80-4b1b-99c5-aa7ff6b25ecc/bin/uautomizer-DQz5hQGWxF/z3 [2021-11-20 07:13:18,126 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_555edb77-3c80-4b1b-99c5-aa7ff6b25ecc/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-20 07:13:18,127 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_555edb77-3c80-4b1b-99c5-aa7ff6b25ecc/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Waiting until timeout for monitored process [2021-11-20 07:13:18,130 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 [2021-11-20 07:13:18,137 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-20 07:13:18,137 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-11-20 07:13:18,138 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-20 07:13:18,138 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-20 07:13:18,138 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-20 07:13:18,138 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-11-20 07:13:18,138 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-11-20 07:13:18,152 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-11-20 07:13:18,170 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_555edb77-3c80-4b1b-99c5-aa7ff6b25ecc/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Forceful destruction successful, exit code 0 [2021-11-20 07:13:18,171 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-20 07:13:18,171 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_555edb77-3c80-4b1b-99c5-aa7ff6b25ecc/bin/uautomizer-DQz5hQGWxF/z3 [2021-11-20 07:13:18,184 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_555edb77-3c80-4b1b-99c5-aa7ff6b25ecc/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-20 07:13:18,184 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_555edb77-3c80-4b1b-99c5-aa7ff6b25ecc/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Waiting until timeout for monitored process [2021-11-20 07:13:18,185 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 [2021-11-20 07:13:18,192 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-20 07:13:18,192 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-11-20 07:13:18,192 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-20 07:13:18,192 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-20 07:13:18,192 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-20 07:13:18,193 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-11-20 07:13:18,193 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-11-20 07:13:18,203 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-11-20 07:13:18,221 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_555edb77-3c80-4b1b-99c5-aa7ff6b25ecc/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Forceful destruction successful, exit code 0 [2021-11-20 07:13:18,222 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-20 07:13:18,222 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_555edb77-3c80-4b1b-99c5-aa7ff6b25ecc/bin/uautomizer-DQz5hQGWxF/z3 [2021-11-20 07:13:18,224 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_555edb77-3c80-4b1b-99c5-aa7ff6b25ecc/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-20 07:13:18,231 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_555edb77-3c80-4b1b-99c5-aa7ff6b25ecc/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (14)] Waiting until timeout for monitored process [2021-11-20 07:13:18,231 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 [2021-11-20 07:13:18,240 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-20 07:13:18,240 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-11-20 07:13:18,240 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-20 07:13:18,240 INFO L204 nArgumentSynthesizer]: 4 loop disjuncts [2021-11-20 07:13:18,240 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-20 07:13:18,288 INFO L401 nArgumentSynthesizer]: We have 8 Motzkin's Theorem applications. [2021-11-20 07:13:18,289 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-11-20 07:13:18,335 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-11-20 07:13:18,368 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_555edb77-3c80-4b1b-99c5-aa7ff6b25ecc/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (14)] Forceful destruction successful, exit code 0 [2021-11-20 07:13:18,369 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-20 07:13:18,369 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_555edb77-3c80-4b1b-99c5-aa7ff6b25ecc/bin/uautomizer-DQz5hQGWxF/z3 [2021-11-20 07:13:18,369 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_555edb77-3c80-4b1b-99c5-aa7ff6b25ecc/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-20 07:13:18,372 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_555edb77-3c80-4b1b-99c5-aa7ff6b25ecc/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (15)] Waiting until timeout for monitored process [2021-11-20 07:13:18,372 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-11-20 07:13:18,379 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-20 07:13:18,379 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-11-20 07:13:18,379 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-20 07:13:18,379 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-20 07:13:18,379 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-20 07:13:18,380 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-11-20 07:13:18,380 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-11-20 07:13:18,391 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-11-20 07:13:18,413 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_555edb77-3c80-4b1b-99c5-aa7ff6b25ecc/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (15)] Forceful destruction successful, exit code 0 [2021-11-20 07:13:18,413 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-20 07:13:18,413 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_555edb77-3c80-4b1b-99c5-aa7ff6b25ecc/bin/uautomizer-DQz5hQGWxF/z3 [2021-11-20 07:13:18,414 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_555edb77-3c80-4b1b-99c5-aa7ff6b25ecc/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-20 07:13:18,416 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_555edb77-3c80-4b1b-99c5-aa7ff6b25ecc/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (16)] Waiting until timeout for monitored process [2021-11-20 07:13:18,419 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 [2021-11-20 07:13:18,425 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-20 07:13:18,426 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-11-20 07:13:18,426 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-20 07:13:18,426 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-20 07:13:18,426 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-20 07:13:18,427 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-11-20 07:13:18,427 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-11-20 07:13:18,428 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-11-20 07:13:18,450 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_555edb77-3c80-4b1b-99c5-aa7ff6b25ecc/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (16)] Ended with exit code 0 [2021-11-20 07:13:18,450 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-20 07:13:18,451 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_555edb77-3c80-4b1b-99c5-aa7ff6b25ecc/bin/uautomizer-DQz5hQGWxF/z3 [2021-11-20 07:13:18,451 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_555edb77-3c80-4b1b-99c5-aa7ff6b25ecc/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-20 07:13:18,454 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_555edb77-3c80-4b1b-99c5-aa7ff6b25ecc/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (17)] Waiting until timeout for monitored process [2021-11-20 07:13:18,457 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 [2021-11-20 07:13:18,464 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-20 07:13:18,464 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-11-20 07:13:18,464 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-20 07:13:18,465 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-20 07:13:18,465 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-20 07:13:18,465 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-11-20 07:13:18,465 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-11-20 07:13:18,466 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-11-20 07:13:18,485 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_555edb77-3c80-4b1b-99c5-aa7ff6b25ecc/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (17)] Forceful destruction successful, exit code 0 [2021-11-20 07:13:18,485 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-20 07:13:18,485 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_555edb77-3c80-4b1b-99c5-aa7ff6b25ecc/bin/uautomizer-DQz5hQGWxF/z3 [2021-11-20 07:13:18,487 INFO L229 MonitoredProcess]: Starting monitored process 18 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_555edb77-3c80-4b1b-99c5-aa7ff6b25ecc/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-20 07:13:18,487 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_555edb77-3c80-4b1b-99c5-aa7ff6b25ecc/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (18)] Waiting until timeout for monitored process [2021-11-20 07:13:18,488 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 [2021-11-20 07:13:18,495 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-20 07:13:18,495 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-11-20 07:13:18,495 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-20 07:13:18,495 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-20 07:13:18,495 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-20 07:13:18,496 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-11-20 07:13:18,496 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-11-20 07:13:18,523 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2021-11-20 07:13:18,539 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2021-11-20 07:13:18,539 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. [2021-11-20 07:13:18,540 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-20 07:13:18,540 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_555edb77-3c80-4b1b-99c5-aa7ff6b25ecc/bin/uautomizer-DQz5hQGWxF/z3 [2021-11-20 07:13:18,543 INFO L229 MonitoredProcess]: Starting monitored process 19 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_555edb77-3c80-4b1b-99c5-aa7ff6b25ecc/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-20 07:13:18,587 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2021-11-20 07:13:18,587 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2021-11-20 07:13:18,587 INFO L513 LassoAnalysis]: Proved termination. [2021-11-20 07:13:18,588 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~i2~0#1) = -2*ULTIMATE.start_main_~i2~0#1 + 27 Supporting invariants [] [2021-11-20 07:13:18,591 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_555edb77-3c80-4b1b-99c5-aa7ff6b25ecc/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (19)] Waiting until timeout for monitored process [2021-11-20 07:13:18,637 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_555edb77-3c80-4b1b-99c5-aa7ff6b25ecc/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (18)] Forceful destruction successful, exit code 0 [2021-11-20 07:13:18,639 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2021-11-20 07:13:18,659 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 07:13:18,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:13:18,761 INFO L263 TraceCheckSpWp]: Trace formula consists of 242 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-20 07:13:18,764 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-20 07:13:18,819 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_555edb77-3c80-4b1b-99c5-aa7ff6b25ecc/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (19)] Forceful destruction successful, exit code 0 [2021-11-20 07:13:18,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:13:18,940 INFO L263 TraceCheckSpWp]: Trace formula consists of 130 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-20 07:13:18,942 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-20 07:13:19,150 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-20 07:13:19,155 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 [2021-11-20 07:13:19,156 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 182 states and 251 transitions. cyclomatic complexity: 70 Second operand has 3 states, 3 states have (on average 31.0) internal successors, (93), 3 states have internal predecessors, (93), 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) [2021-11-20 07:13:19,232 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 182 states and 251 transitions. cyclomatic complexity: 70. Second operand has 3 states, 3 states have (on average 31.0) internal successors, (93), 3 states have internal predecessors, (93), 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 307 states and 446 transitions. Complement of second has 4 states. [2021-11-20 07:13:19,232 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 [2021-11-20 07:13:19,233 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 31.0) internal successors, (93), 3 states have internal predecessors, (93), 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) [2021-11-20 07:13:19,234 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 159 transitions. [2021-11-20 07:13:19,236 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 159 transitions. Stem has 56 letters. Loop has 37 letters. [2021-11-20 07:13:19,238 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-11-20 07:13:19,239 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 159 transitions. Stem has 93 letters. Loop has 37 letters. [2021-11-20 07:13:19,243 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-11-20 07:13:19,243 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 159 transitions. Stem has 56 letters. Loop has 74 letters. [2021-11-20 07:13:19,245 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-11-20 07:13:19,246 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 307 states and 446 transitions. [2021-11-20 07:13:19,251 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2021-11-20 07:13:19,252 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 307 states to 0 states and 0 transitions. [2021-11-20 07:13:19,252 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2021-11-20 07:13:19,252 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2021-11-20 07:13:19,252 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2021-11-20 07:13:19,252 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-11-20 07:13:19,252 INFO L681 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-11-20 07:13:19,252 INFO L704 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-11-20 07:13:19,253 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-20 07:13:19,253 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-20 07:13:19,253 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-20 07:13:19,254 INFO L87 Difference]: Start difference. First operand 0 states and 0 transitions. Second operand has 3 states, 3 states have (on average 31.0) internal successors, (93), 3 states have internal predecessors, (93), 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) [2021-11-20 07:13:19,254 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 07:13:19,254 INFO L93 Difference]: Finished difference Result 0 states and 0 transitions. [2021-11-20 07:13:19,254 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-20 07:13:19,256 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 0 states and 0 transitions. [2021-11-20 07:13:19,257 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2021-11-20 07:13:19,257 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 0 states to 0 states and 0 transitions. [2021-11-20 07:13:19,257 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2021-11-20 07:13:19,257 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2021-11-20 07:13:19,257 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2021-11-20 07:13:19,257 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-11-20 07:13:19,258 INFO L681 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-11-20 07:13:19,258 INFO L704 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-11-20 07:13:19,258 INFO L587 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-11-20 07:13:19,258 INFO L425 BuchiCegarLoop]: ======== Iteration 5============ [2021-11-20 07:13:19,258 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2021-11-20 07:13:19,258 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2021-11-20 07:13:19,258 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2021-11-20 07:13:19,266 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 20.11 07:13:19 BoogieIcfgContainer [2021-11-20 07:13:19,267 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2021-11-20 07:13:19,267 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-11-20 07:13:19,267 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-11-20 07:13:19,267 INFO L275 PluginConnector]: Witness Printer initialized [2021-11-20 07:13:19,268 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 07:13:08" (3/4) ... [2021-11-20 07:13:19,271 INFO L140 WitnessPrinter]: No result that supports witness generation found [2021-11-20 07:13:19,272 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-11-20 07:13:19,273 INFO L158 Benchmark]: Toolchain (without parser) took 12004.95ms. Allocated memory was 98.6MB in the beginning and 176.2MB in the end (delta: 77.6MB). Free memory was 55.4MB in the beginning and 99.3MB in the end (delta: -43.9MB). Peak memory consumption was 31.9MB. Max. memory is 16.1GB. [2021-11-20 07:13:19,276 INFO L158 Benchmark]: CDTParser took 0.29ms. Allocated memory is still 98.6MB. Free memory is still 72.7MB. There was no memory consumed. Max. memory is 16.1GB. [2021-11-20 07:13:19,279 INFO L158 Benchmark]: CACSL2BoogieTranslator took 438.85ms. Allocated memory is still 98.6MB. Free memory was 55.2MB in the beginning and 66.7MB in the end (delta: -11.5MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2021-11-20 07:13:19,280 INFO L158 Benchmark]: Boogie Procedure Inliner took 55.39ms. Allocated memory is still 98.6MB. Free memory was 66.7MB in the beginning and 63.8MB in the end (delta: 2.9MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2021-11-20 07:13:19,280 INFO L158 Benchmark]: Boogie Preprocessor took 38.16ms. Allocated memory is still 98.6MB. Free memory was 63.8MB in the beginning and 61.7MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-11-20 07:13:19,281 INFO L158 Benchmark]: RCFGBuilder took 707.90ms. Allocated memory is still 98.6MB. Free memory was 61.7MB in the beginning and 38.3MB in the end (delta: 23.5MB). Peak memory consumption was 23.1MB. Max. memory is 16.1GB. [2021-11-20 07:13:19,281 INFO L158 Benchmark]: BuchiAutomizer took 10754.92ms. Allocated memory was 98.6MB in the beginning and 176.2MB in the end (delta: 77.6MB). Free memory was 37.9MB in the beginning and 99.3MB in the end (delta: -61.4MB). Peak memory consumption was 17.3MB. Max. memory is 16.1GB. [2021-11-20 07:13:19,281 INFO L158 Benchmark]: Witness Printer took 4.55ms. Allocated memory is still 176.2MB. Free memory is still 99.3MB. There was no memory consumed. Max. memory is 16.1GB. [2021-11-20 07:13:19,283 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.29ms. Allocated memory is still 98.6MB. Free memory is still 72.7MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 438.85ms. Allocated memory is still 98.6MB. Free memory was 55.2MB in the beginning and 66.7MB in the end (delta: -11.5MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 55.39ms. Allocated memory is still 98.6MB. Free memory was 66.7MB in the beginning and 63.8MB in the end (delta: 2.9MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 38.16ms. Allocated memory is still 98.6MB. Free memory was 63.8MB in the beginning and 61.7MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 707.90ms. Allocated memory is still 98.6MB. Free memory was 61.7MB in the beginning and 38.3MB in the end (delta: 23.5MB). Peak memory consumption was 23.1MB. Max. memory is 16.1GB. * BuchiAutomizer took 10754.92ms. Allocated memory was 98.6MB in the beginning and 176.2MB in the end (delta: 77.6MB). Free memory was 37.9MB in the beginning and 99.3MB in the end (delta: -61.4MB). Peak memory consumption was 17.3MB. Max. memory is 16.1GB. * Witness Printer took 4.55ms. Allocated memory is still 176.2MB. Free memory is still 99.3MB. 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 5 terminating modules (4 trivial, 1 deterministic, 0 nondeterministic). One deterministic module has affine ranking function -2 * i2 + 27 and consists of 3 locations. 4 modules have a trivial ranking function, the largest among these consists of 5 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 10.7s and 5 iterations. TraceHistogramMax:1. Analysis of lassos took 9.4s. Construction of modules took 0.0s. Büchi inclusion checks took 0.7s. Highest rank in rank-based complementation 3. Minimization of det autom 5. Minimization of nondet autom 0. Automata minimization 0.1s AutomataMinimizationTime, 3 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 182 states and ocurred in iteration 3. Nontrivial modules had stage [1, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 254 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 253 mSDsluCounter, 2095 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 1316 mSDsCounter, 55 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 36 IncrementalHoareTripleChecker+Invalid, 91 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 55 mSolverCounterUnsat, 779 mSDtfsCounter, 36 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown LassoAnalysisResults: nont0 unkn0 SFLI2 SFLT0 conc0 concLT1 SILN0 SILU0 SILI1 SILT0 lasso0 LassoPreprocessingBenchmarks: Lassos: inital235 mio100 ax100 hnf100 lsp57 ukn82 mio100 lsp100 div127 bol100 ite100 ukn100 eq197 hnf77 smp100 dnf727 smp49 tf100 neg99 sie101 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 113ms VariablesStem: 0 VariablesLoop: 38 DisjunctsStem: 1 DisjunctsLoop: 4 SupportingInvariants: 0 MotzkinApplications: 8 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 0 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 1 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.2s - TerminationAnalysisResult: Termination proven Buchi Automizer proved that your program is terminating RESULT: Ultimate proved your program to be correct! [2021-11-20 07:13:19,337 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_555edb77-3c80-4b1b-99c5-aa7ff6b25ecc/bin/uautomizer-DQz5hQGWxF/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