./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/bitvector-loops/verisec_sendmail_tTflag_arr_one_loop.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 839c364b Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39606128-cf00-4212-9be9-95501c920a1c/bin/uautomizer-DrprNOufMa/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39606128-cf00-4212-9be9-95501c920a1c/bin/uautomizer-DrprNOufMa/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39606128-cf00-4212-9be9-95501c920a1c/bin/uautomizer-DrprNOufMa/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39606128-cf00-4212-9be9-95501c920a1c/bin/uautomizer-DrprNOufMa/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/bitvector-loops/verisec_sendmail_tTflag_arr_one_loop.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39606128-cf00-4212-9be9-95501c920a1c/bin/uautomizer-DrprNOufMa/config/svcomp-Termination-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39606128-cf00-4212-9be9-95501c920a1c/bin/uautomizer-DrprNOufMa --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 bec73cbd355af8995620266d1bb50e13212a1740ed8bd583620b6985b8fd569c --- Real Ultimate output --- This is Ultimate 0.2.2-hotfix-svcomp22-839c364 [2021-12-06 22:27:09,938 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-12-06 22:27:09,940 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-12-06 22:27:09,969 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-12-06 22:27:09,969 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-12-06 22:27:09,971 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-12-06 22:27:09,972 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-12-06 22:27:09,973 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-12-06 22:27:09,975 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-12-06 22:27:09,976 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-12-06 22:27:09,977 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-12-06 22:27:09,978 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-12-06 22:27:09,978 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-12-06 22:27:09,979 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-12-06 22:27:09,980 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-12-06 22:27:09,982 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-12-06 22:27:09,982 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-12-06 22:27:09,983 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-12-06 22:27:09,985 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-12-06 22:27:09,986 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-12-06 22:27:09,988 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-12-06 22:27:09,989 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-12-06 22:27:09,990 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-12-06 22:27:09,991 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-12-06 22:27:09,994 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-12-06 22:27:09,994 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-12-06 22:27:09,994 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-12-06 22:27:09,995 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-12-06 22:27:09,995 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-12-06 22:27:09,996 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-12-06 22:27:09,996 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-12-06 22:27:09,997 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-12-06 22:27:09,998 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-12-06 22:27:09,998 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-12-06 22:27:09,999 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-12-06 22:27:09,999 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-12-06 22:27:10,000 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-12-06 22:27:10,000 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-12-06 22:27:10,000 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-12-06 22:27:10,001 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-12-06 22:27:10,001 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-12-06 22:27:10,002 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39606128-cf00-4212-9be9-95501c920a1c/bin/uautomizer-DrprNOufMa/config/svcomp-Termination-32bit-Automizer_Default.epf [2021-12-06 22:27:10,046 INFO L113 SettingsManager]: Loading preferences was successful [2021-12-06 22:27:10,046 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-12-06 22:27:10,046 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-12-06 22:27:10,046 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-12-06 22:27:10,047 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-12-06 22:27:10,048 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-12-06 22:27:10,048 INFO L138 SettingsManager]: * Use SBE=true [2021-12-06 22:27:10,048 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2021-12-06 22:27:10,048 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2021-12-06 22:27:10,048 INFO L138 SettingsManager]: * Use old map elimination=false [2021-12-06 22:27:10,048 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2021-12-06 22:27:10,049 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2021-12-06 22:27:10,049 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2021-12-06 22:27:10,049 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-12-06 22:27:10,049 INFO L138 SettingsManager]: * sizeof long=4 [2021-12-06 22:27:10,049 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-12-06 22:27:10,049 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-12-06 22:27:10,050 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-12-06 22:27:10,050 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-12-06 22:27:10,050 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2021-12-06 22:27:10,050 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2021-12-06 22:27:10,050 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2021-12-06 22:27:10,050 INFO L138 SettingsManager]: * sizeof long double=12 [2021-12-06 22:27:10,051 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-12-06 22:27:10,051 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2021-12-06 22:27:10,051 INFO L138 SettingsManager]: * Use constant arrays=true [2021-12-06 22:27:10,051 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2021-12-06 22:27:10,051 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-12-06 22:27:10,052 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-12-06 22:27:10,052 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-12-06 22:27:10,052 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-12-06 22:27:10,052 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-12-06 22:27:10,053 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2021-12-06 22:27:10,053 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_39606128-cf00-4212-9be9-95501c920a1c/bin/uautomizer-DrprNOufMa/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39606128-cf00-4212-9be9-95501c920a1c/bin/uautomizer-DrprNOufMa Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> bec73cbd355af8995620266d1bb50e13212a1740ed8bd583620b6985b8fd569c [2021-12-06 22:27:10,239 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-12-06 22:27:10,255 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-12-06 22:27:10,257 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-12-06 22:27:10,257 INFO L271 PluginConnector]: Initializing CDTParser... [2021-12-06 22:27:10,258 INFO L275 PluginConnector]: CDTParser initialized [2021-12-06 22:27:10,259 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39606128-cf00-4212-9be9-95501c920a1c/bin/uautomizer-DrprNOufMa/../../sv-benchmarks/c/bitvector-loops/verisec_sendmail_tTflag_arr_one_loop.c [2021-12-06 22:27:10,302 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39606128-cf00-4212-9be9-95501c920a1c/bin/uautomizer-DrprNOufMa/data/7b97c4079/333c34cdbe6948aeb3374d100c475e62/FLAG55e1b61bf [2021-12-06 22:27:10,682 INFO L306 CDTParser]: Found 1 translation units. [2021-12-06 22:27:10,682 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39606128-cf00-4212-9be9-95501c920a1c/sv-benchmarks/c/bitvector-loops/verisec_sendmail_tTflag_arr_one_loop.c [2021-12-06 22:27:10,686 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39606128-cf00-4212-9be9-95501c920a1c/bin/uautomizer-DrprNOufMa/data/7b97c4079/333c34cdbe6948aeb3374d100c475e62/FLAG55e1b61bf [2021-12-06 22:27:10,697 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39606128-cf00-4212-9be9-95501c920a1c/bin/uautomizer-DrprNOufMa/data/7b97c4079/333c34cdbe6948aeb3374d100c475e62 [2021-12-06 22:27:10,699 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-12-06 22:27:10,700 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-12-06 22:27:10,701 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-12-06 22:27:10,702 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-12-06 22:27:10,704 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-12-06 22:27:10,705 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.12 10:27:10" (1/1) ... [2021-12-06 22:27:10,705 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@297b222d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 10:27:10, skipping insertion in model container [2021-12-06 22:27:10,706 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.12 10:27:10" (1/1) ... [2021-12-06 22:27:10,713 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-12-06 22:27:10,722 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-12-06 22:27:10,841 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_39606128-cf00-4212-9be9-95501c920a1c/sv-benchmarks/c/bitvector-loops/verisec_sendmail_tTflag_arr_one_loop.c[387,400] [2021-12-06 22:27:10,854 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-06 22:27:10,860 INFO L203 MainTranslator]: Completed pre-run [2021-12-06 22:27:10,868 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_39606128-cf00-4212-9be9-95501c920a1c/sv-benchmarks/c/bitvector-loops/verisec_sendmail_tTflag_arr_one_loop.c[387,400] [2021-12-06 22:27:10,873 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-06 22:27:10,883 INFO L208 MainTranslator]: Completed translation [2021-12-06 22:27:10,884 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 10:27:10 WrapperNode [2021-12-06 22:27:10,884 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-12-06 22:27:10,885 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-12-06 22:27:10,885 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-12-06 22:27:10,885 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-12-06 22:27:10,890 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 10:27:10" (1/1) ... [2021-12-06 22:27:10,897 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 10:27:10" (1/1) ... [2021-12-06 22:27:10,915 INFO L137 Inliner]: procedures = 14, calls = 15, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 58 [2021-12-06 22:27:10,916 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-12-06 22:27:10,916 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-12-06 22:27:10,916 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-12-06 22:27:10,917 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-12-06 22:27:10,923 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 10:27:10" (1/1) ... [2021-12-06 22:27:10,923 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 10:27:10" (1/1) ... [2021-12-06 22:27:10,925 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 10:27:10" (1/1) ... [2021-12-06 22:27:10,925 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 10:27:10" (1/1) ... [2021-12-06 22:27:10,930 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 10:27:10" (1/1) ... [2021-12-06 22:27:10,934 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 10:27:10" (1/1) ... [2021-12-06 22:27:10,935 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 10:27:10" (1/1) ... [2021-12-06 22:27:10,937 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-12-06 22:27:10,938 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-12-06 22:27:10,938 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-12-06 22:27:10,938 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-12-06 22:27:10,939 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 10:27:10" (1/1) ... [2021-12-06 22:27:10,947 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-06 22:27:10,955 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39606128-cf00-4212-9be9-95501c920a1c/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 22:27:10,966 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39606128-cf00-4212-9be9-95501c920a1c/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-06 22:27:10,969 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39606128-cf00-4212-9be9-95501c920a1c/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2021-12-06 22:27:10,997 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-12-06 22:27:10,997 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-12-06 22:27:10,998 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-12-06 22:27:10,998 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-12-06 22:27:10,998 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-12-06 22:27:10,998 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-12-06 22:27:10,998 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-12-06 22:27:10,998 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-12-06 22:27:11,049 INFO L236 CfgBuilder]: Building ICFG [2021-12-06 22:27:11,050 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-12-06 22:27:11,144 INFO L277 CfgBuilder]: Performing block encoding [2021-12-06 22:27:11,149 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-12-06 22:27:11,150 INFO L301 CfgBuilder]: Removed 2 assume(true) statements. [2021-12-06 22:27:11,151 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.12 10:27:11 BoogieIcfgContainer [2021-12-06 22:27:11,151 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-12-06 22:27:11,152 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2021-12-06 22:27:11,152 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2021-12-06 22:27:11,154 INFO L275 PluginConnector]: BuchiAutomizer initialized [2021-12-06 22:27:11,155 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-12-06 22:27:11,155 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 06.12 10:27:10" (1/3) ... [2021-12-06 22:27:11,156 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@5d0d1941 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 06.12 10:27:11, skipping insertion in model container [2021-12-06 22:27:11,156 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-12-06 22:27:11,156 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 10:27:10" (2/3) ... [2021-12-06 22:27:11,157 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@5d0d1941 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 06.12 10:27:11, skipping insertion in model container [2021-12-06 22:27:11,157 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-12-06 22:27:11,157 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.12 10:27:11" (3/3) ... [2021-12-06 22:27:11,158 INFO L388 chiAutomizerObserver]: Analyzing ICFG verisec_sendmail_tTflag_arr_one_loop.c [2021-12-06 22:27:11,200 INFO L359 BuchiCegarLoop]: Interprodecural is true [2021-12-06 22:27:11,200 INFO L360 BuchiCegarLoop]: Hoare is false [2021-12-06 22:27:11,200 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2021-12-06 22:27:11,201 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2021-12-06 22:27:11,201 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-12-06 22:27:11,201 INFO L364 BuchiCegarLoop]: Difference is false [2021-12-06 22:27:11,201 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-12-06 22:27:11,201 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2021-12-06 22:27:11,214 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 13 states, 12 states have (on average 1.4166666666666667) internal successors, (17), 12 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 22:27:11,232 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 3 [2021-12-06 22:27:11,232 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-12-06 22:27:11,232 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-12-06 22:27:11,237 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1] [2021-12-06 22:27:11,237 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2021-12-06 22:27:11,238 INFO L425 BuchiCegarLoop]: ======== Iteration 1============ [2021-12-06 22:27:11,238 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 13 states, 12 states have (on average 1.4166666666666667) internal successors, (17), 12 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 22:27:11,240 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 3 [2021-12-06 22:27:11,240 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-12-06 22:27:11,240 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-12-06 22:27:11,241 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1] [2021-12-06 22:27:11,241 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2021-12-06 22:27:11,247 INFO L791 eck$LassoCheckResult]: Stem: 5#ULTIMATE.startENTRYtrue assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int(48, 1, 0, 1);call write~init~int(0, 1, 1, 1);call #Ultimate.allocInit(39, 2);call #Ultimate.allocInit(12, 3); 8#L-1true assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet5#1, main_#t~post4#1, main_#t~mem6#1, main_#t~post7#1, main_#t~mem8#1, main_~#in~0#1.base, main_~#in~0#1.offset, main_~s~0#1.base, main_~s~0#1.offset, main_~c~0#1, main_~i~0#1, main_~j~0#1, main_~idx_in~0#1;call main_~#in~0#1.base, main_~#in~0#1.offset := #Ultimate.allocOnStack(11);havoc main_~s~0#1.base, main_~s~0#1.offset;havoc main_~c~0#1;havoc main_~i~0#1;havoc main_~j~0#1;havoc main_~idx_in~0#1;main_~i~0#1 := 0; 4#L21-3true [2021-12-06 22:27:11,247 INFO L793 eck$LassoCheckResult]: Loop: 4#L21-3true assume !!(main_~i~0#1 < 11);call write~int(main_#t~nondet5#1, main_~#in~0#1.base, main_~#in~0#1.offset + main_~i~0#1, 1);havoc main_#t~nondet5#1; 12#L21-2true main_#t~post4#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post4#1;havoc main_#t~post4#1; 4#L21-3true [2021-12-06 22:27:11,253 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 22:27:11,253 INFO L85 PathProgramCache]: Analyzing trace with hash 963, now seen corresponding path program 1 times [2021-12-06 22:27:11,261 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 22:27:11,262 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [786403528] [2021-12-06 22:27:11,262 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 22:27:11,263 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 22:27:11,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-06 22:27:11,351 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-06 22:27:11,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-06 22:27:11,377 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-06 22:27:11,379 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 22:27:11,379 INFO L85 PathProgramCache]: Analyzing trace with hash 1283, now seen corresponding path program 1 times [2021-12-06 22:27:11,379 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 22:27:11,379 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1373408731] [2021-12-06 22:27:11,380 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 22:27:11,380 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 22:27:11,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-06 22:27:11,388 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-06 22:27:11,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-06 22:27:11,396 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-06 22:27:11,397 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 22:27:11,398 INFO L85 PathProgramCache]: Analyzing trace with hash 925765, now seen corresponding path program 1 times [2021-12-06 22:27:11,398 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 22:27:11,398 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [79257056] [2021-12-06 22:27:11,398 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 22:27:11,398 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 22:27:11,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-06 22:27:11,419 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-06 22:27:11,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-06 22:27:11,436 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-06 22:27:11,660 INFO L210 LassoAnalysis]: Preferences: [2021-12-06 22:27:11,661 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-12-06 22:27:11,661 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-12-06 22:27:11,661 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-12-06 22:27:11,661 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2021-12-06 22:27:11,661 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-06 22:27:11,662 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-12-06 22:27:11,662 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-12-06 22:27:11,662 INFO L133 ssoRankerPreferences]: Filename of dumped script: verisec_sendmail_tTflag_arr_one_loop.c_Iteration1_Lasso [2021-12-06 22:27:11,662 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-12-06 22:27:11,662 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-12-06 22:27:11,677 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-06 22:27:11,681 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-06 22:27:11,683 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-06 22:27:11,685 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-06 22:27:11,687 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-06 22:27:11,816 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-06 22:27:11,817 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-06 22:27:11,819 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-06 22:27:11,821 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-06 22:27:11,822 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-06 22:27:11,824 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-06 22:27:11,826 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-06 22:27:11,828 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-06 22:27:11,978 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-12-06 22:27:11,981 INFO L490 LassoAnalysis]: Using template 'affine'. [2021-12-06 22:27:11,982 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-06 22:27:11,982 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39606128-cf00-4212-9be9-95501c920a1c/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 22:27:11,983 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39606128-cf00-4212-9be9-95501c920a1c/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-06 22:27:11,984 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39606128-cf00-4212-9be9-95501c920a1c/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Waiting until timeout for monitored process [2021-12-06 22:27:11,984 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 [2021-12-06 22:27:11,992 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-06 22:27:11,992 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-12-06 22:27:11,993 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-06 22:27:11,993 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-06 22:27:11,993 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-06 22:27:11,995 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-12-06 22:27:11,995 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-12-06 22:27:11,996 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-06 22:27:12,016 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39606128-cf00-4212-9be9-95501c920a1c/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Forceful destruction successful, exit code 0 [2021-12-06 22:27:12,016 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-06 22:27:12,016 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39606128-cf00-4212-9be9-95501c920a1c/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 22:27:12,017 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39606128-cf00-4212-9be9-95501c920a1c/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-06 22:27:12,018 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39606128-cf00-4212-9be9-95501c920a1c/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Waiting until timeout for monitored process [2021-12-06 22:27:12,018 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 [2021-12-06 22:27:12,026 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-06 22:27:12,026 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-12-06 22:27:12,026 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-06 22:27:12,026 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-06 22:27:12,026 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-06 22:27:12,027 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-12-06 22:27:12,027 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-12-06 22:27:12,028 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-06 22:27:12,047 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39606128-cf00-4212-9be9-95501c920a1c/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Ended with exit code 0 [2021-12-06 22:27:12,047 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-06 22:27:12,047 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39606128-cf00-4212-9be9-95501c920a1c/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 22:27:12,048 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39606128-cf00-4212-9be9-95501c920a1c/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-06 22:27:12,048 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39606128-cf00-4212-9be9-95501c920a1c/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Waiting until timeout for monitored process [2021-12-06 22:27:12,049 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 [2021-12-06 22:27:12,056 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-06 22:27:12,056 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-12-06 22:27:12,056 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-06 22:27:12,057 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-06 22:27:12,057 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-06 22:27:12,057 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-12-06 22:27:12,057 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-12-06 22:27:12,059 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-06 22:27:12,077 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39606128-cf00-4212-9be9-95501c920a1c/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Ended with exit code 0 [2021-12-06 22:27:12,077 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-06 22:27:12,078 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39606128-cf00-4212-9be9-95501c920a1c/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 22:27:12,078 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39606128-cf00-4212-9be9-95501c920a1c/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-06 22:27:12,079 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39606128-cf00-4212-9be9-95501c920a1c/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Waiting until timeout for monitored process [2021-12-06 22:27:12,079 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 [2021-12-06 22:27:12,087 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-06 22:27:12,087 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-12-06 22:27:12,087 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-06 22:27:12,087 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-06 22:27:12,087 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-06 22:27:12,087 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-12-06 22:27:12,088 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-12-06 22:27:12,089 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-06 22:27:12,107 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39606128-cf00-4212-9be9-95501c920a1c/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Ended with exit code 0 [2021-12-06 22:27:12,107 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-06 22:27:12,107 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39606128-cf00-4212-9be9-95501c920a1c/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 22:27:12,108 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39606128-cf00-4212-9be9-95501c920a1c/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-06 22:27:12,109 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39606128-cf00-4212-9be9-95501c920a1c/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Waiting until timeout for monitored process [2021-12-06 22:27:12,109 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-12-06 22:27:12,117 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-06 22:27:12,117 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-06 22:27:12,117 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-06 22:27:12,117 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-06 22:27:12,120 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-12-06 22:27:12,120 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-12-06 22:27:12,124 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-06 22:27:12,142 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39606128-cf00-4212-9be9-95501c920a1c/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Forceful destruction successful, exit code 0 [2021-12-06 22:27:12,142 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-06 22:27:12,143 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39606128-cf00-4212-9be9-95501c920a1c/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 22:27:12,143 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39606128-cf00-4212-9be9-95501c920a1c/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-06 22:27:12,144 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39606128-cf00-4212-9be9-95501c920a1c/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Waiting until timeout for monitored process [2021-12-06 22:27:12,145 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-12-06 22:27:12,153 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-06 22:27:12,153 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-12-06 22:27:12,153 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-06 22:27:12,153 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-06 22:27:12,153 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-06 22:27:12,154 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-12-06 22:27:12,154 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-12-06 22:27:12,155 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-06 22:27:12,174 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39606128-cf00-4212-9be9-95501c920a1c/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Ended with exit code 0 [2021-12-06 22:27:12,174 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-06 22:27:12,174 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39606128-cf00-4212-9be9-95501c920a1c/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 22:27:12,175 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39606128-cf00-4212-9be9-95501c920a1c/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-06 22:27:12,176 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39606128-cf00-4212-9be9-95501c920a1c/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Waiting until timeout for monitored process [2021-12-06 22:27:12,177 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 [2021-12-06 22:27:12,185 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-06 22:27:12,185 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-06 22:27:12,185 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-06 22:27:12,185 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-06 22:27:12,188 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-12-06 22:27:12,188 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-12-06 22:27:12,191 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-06 22:27:12,209 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39606128-cf00-4212-9be9-95501c920a1c/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Ended with exit code 0 [2021-12-06 22:27:12,210 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-06 22:27:12,210 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39606128-cf00-4212-9be9-95501c920a1c/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 22:27:12,210 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39606128-cf00-4212-9be9-95501c920a1c/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-06 22:27:12,211 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39606128-cf00-4212-9be9-95501c920a1c/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Waiting until timeout for monitored process [2021-12-06 22:27:12,212 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 [2021-12-06 22:27:12,220 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-06 22:27:12,220 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-06 22:27:12,220 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-06 22:27:12,220 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-06 22:27:12,226 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-12-06 22:27:12,226 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-12-06 22:27:12,234 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2021-12-06 22:27:12,260 INFO L443 ModelExtractionUtils]: Simplification made 11 calls to the SMT solver. [2021-12-06 22:27:12,260 INFO L444 ModelExtractionUtils]: 0 out of 13 variables were initially zero. Simplification set additionally 10 variables to zero. [2021-12-06 22:27:12,262 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-06 22:27:12,262 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39606128-cf00-4212-9be9-95501c920a1c/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 22:27:12,263 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39606128-cf00-4212-9be9-95501c920a1c/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-06 22:27:12,264 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39606128-cf00-4212-9be9-95501c920a1c/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Waiting until timeout for monitored process [2021-12-06 22:27:12,265 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2021-12-06 22:27:12,273 INFO L438 nArgumentSynthesizer]: Removed 2 redundant supporting invariants from a total of 2. [2021-12-06 22:27:12,273 INFO L513 LassoAnalysis]: Proved termination. [2021-12-06 22:27:12,274 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~i~0#1, v_rep(select #length ULTIMATE.start_main_~#in~0#1.base)_1) = -2*ULTIMATE.start_main_~i~0#1 + 21*v_rep(select #length ULTIMATE.start_main_~#in~0#1.base)_1 Supporting invariants [] [2021-12-06 22:27:12,293 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39606128-cf00-4212-9be9-95501c920a1c/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Ended with exit code 0 [2021-12-06 22:27:12,306 INFO L297 tatePredicateManager]: 5 out of 5 supporting invariants were superfluous and have been removed [2021-12-06 22:27:12,328 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 22:27:12,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 22:27:12,343 INFO L263 TraceCheckSpWp]: Trace formula consists of 39 conjuncts, 2 conjunts are in the unsatisfiable core [2021-12-06 22:27:12,344 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-06 22:27:12,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 22:27:12,358 INFO L263 TraceCheckSpWp]: Trace formula consists of 13 conjuncts, 6 conjunts are in the unsatisfiable core [2021-12-06 22:27:12,358 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-06 22:27:12,401 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-06 22:27:12,430 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 [2021-12-06 22:27:12,432 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand has 13 states, 12 states have (on average 1.4166666666666667) internal successors, (17), 12 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 3 states, 3 states have (on average 1.3333333333333333) internal successors, (4), 3 states have internal predecessors, (4), 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) [2021-12-06 22:27:12,466 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand has 13 states, 12 states have (on average 1.4166666666666667) internal successors, (17), 12 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0). Second operand has 3 states, 3 states have (on average 1.3333333333333333) internal successors, (4), 3 states have internal predecessors, (4), 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 25 states and 35 transitions. Complement of second has 8 states. [2021-12-06 22:27:12,467 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 5 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2021-12-06 22:27:12,471 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 1.3333333333333333) internal successors, (4), 3 states have internal predecessors, (4), 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) [2021-12-06 22:27:12,472 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 17 transitions. [2021-12-06 22:27:12,473 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 17 transitions. Stem has 2 letters. Loop has 2 letters. [2021-12-06 22:27:12,474 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-12-06 22:27:12,474 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 17 transitions. Stem has 4 letters. Loop has 2 letters. [2021-12-06 22:27:12,474 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-12-06 22:27:12,474 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 17 transitions. Stem has 2 letters. Loop has 4 letters. [2021-12-06 22:27:12,474 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-12-06 22:27:12,475 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 25 states and 35 transitions. [2021-12-06 22:27:12,478 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2021-12-06 22:27:12,482 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 25 states to 7 states and 9 transitions. [2021-12-06 22:27:12,483 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 4 [2021-12-06 22:27:12,483 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 5 [2021-12-06 22:27:12,484 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 9 transitions. [2021-12-06 22:27:12,484 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-12-06 22:27:12,484 INFO L681 BuchiCegarLoop]: Abstraction has 7 states and 9 transitions. [2021-12-06 22:27:12,498 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7 states and 9 transitions. [2021-12-06 22:27:12,505 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7 to 7. [2021-12-06 22:27:12,505 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7 states, 7 states have (on average 1.2857142857142858) internal successors, (9), 6 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 22:27:12,506 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 9 transitions. [2021-12-06 22:27:12,506 INFO L704 BuchiCegarLoop]: Abstraction has 7 states and 9 transitions. [2021-12-06 22:27:12,506 INFO L587 BuchiCegarLoop]: Abstraction has 7 states and 9 transitions. [2021-12-06 22:27:12,507 INFO L425 BuchiCegarLoop]: ======== Iteration 2============ [2021-12-06 22:27:12,507 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 7 states and 9 transitions. [2021-12-06 22:27:12,507 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2021-12-06 22:27:12,507 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-12-06 22:27:12,507 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-12-06 22:27:12,508 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1] [2021-12-06 22:27:12,508 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1] [2021-12-06 22:27:12,508 INFO L791 eck$LassoCheckResult]: Stem: 102#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(39, 2);call #Ultimate.allocInit(12, 3); 103#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet5#1, main_#t~post4#1, main_#t~mem6#1, main_#t~post7#1, main_#t~mem8#1, main_~#in~0#1.base, main_~#in~0#1.offset, main_~s~0#1.base, main_~s~0#1.offset, main_~c~0#1, main_~i~0#1, main_~j~0#1, main_~idx_in~0#1;call main_~#in~0#1.base, main_~#in~0#1.offset := #Ultimate.allocOnStack(11);havoc main_~s~0#1.base, main_~s~0#1.offset;havoc main_~c~0#1;havoc main_~i~0#1;havoc main_~j~0#1;havoc main_~idx_in~0#1;main_~i~0#1 := 0; 98#L21-3 assume !(main_~i~0#1 < 11); 99#L21-4 call write~int(0, main_~#in~0#1.base, 10 + main_~#in~0#1.offset, 1);main_~idx_in~0#1 := 0;main_~s~0#1.base, main_~s~0#1.offset := main_~#in~0#1.base, main_~#in~0#1.offset;main_~i~0#1 := 0;call main_#t~mem6#1 := read~int(main_~#in~0#1.base, main_~#in~0#1.offset + main_~idx_in~0#1, 1);main_~c~0#1 := main_#t~mem6#1;havoc main_#t~mem6#1; 104#L28-2 [2021-12-06 22:27:12,508 INFO L793 eck$LassoCheckResult]: Loop: 104#L28-2 assume !!(48 <= main_~c~0#1 % 256 && main_~c~0#1 % 256 <= 57);main_~j~0#1 := main_~c~0#1 % 256 - 48;main_~i~0#1 := (if (10 * main_~i~0#1 + main_~j~0#1) % 4294967296 % 4294967296 <= 2147483647 then (10 * main_~i~0#1 + main_~j~0#1) % 4294967296 % 4294967296 else (10 * main_~i~0#1 + main_~j~0#1) % 4294967296 % 4294967296 - 4294967296);main_#t~post7#1 := main_~idx_in~0#1;main_~idx_in~0#1 := 1 + main_#t~post7#1;havoc main_#t~post7#1;call main_#t~mem8#1 := read~int(main_~#in~0#1.base, main_~#in~0#1.offset + main_~idx_in~0#1, 1);main_~c~0#1 := main_#t~mem8#1;havoc main_#t~mem8#1; 104#L28-2 [2021-12-06 22:27:12,509 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 22:27:12,509 INFO L85 PathProgramCache]: Analyzing trace with hash 925707, now seen corresponding path program 1 times [2021-12-06 22:27:12,509 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 22:27:12,510 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [399899395] [2021-12-06 22:27:12,510 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 22:27:12,510 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 22:27:12,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 22:27:12,546 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-06 22:27:12,546 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 22:27:12,546 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [399899395] [2021-12-06 22:27:12,547 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [399899395] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 22:27:12,547 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 22:27:12,547 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-12-06 22:27:12,548 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1965986634] [2021-12-06 22:27:12,548 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 22:27:12,549 INFO L796 eck$LassoCheckResult]: stem already infeasible [2021-12-06 22:27:12,550 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 22:27:12,550 INFO L85 PathProgramCache]: Analyzing trace with hash 56, now seen corresponding path program 1 times [2021-12-06 22:27:12,550 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 22:27:12,550 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1870010817] [2021-12-06 22:27:12,550 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 22:27:12,550 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 22:27:12,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-06 22:27:12,568 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-06 22:27:12,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-06 22:27:12,582 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-06 22:27:12,725 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 22:27:12,726 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-06 22:27:12,727 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-06 22:27:12,728 INFO L87 Difference]: Start difference. First operand 7 states and 9 transitions. cyclomatic complexity: 4 Second operand has 3 states, 3 states have (on average 1.3333333333333333) internal successors, (4), 3 states have internal predecessors, (4), 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) [2021-12-06 22:27:12,739 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 22:27:12,739 INFO L93 Difference]: Finished difference Result 9 states and 10 transitions. [2021-12-06 22:27:12,740 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-06 22:27:12,740 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 9 states and 10 transitions. [2021-12-06 22:27:12,741 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2021-12-06 22:27:12,741 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 9 states to 9 states and 10 transitions. [2021-12-06 22:27:12,741 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 6 [2021-12-06 22:27:12,742 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 6 [2021-12-06 22:27:12,742 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 10 transitions. [2021-12-06 22:27:12,742 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-12-06 22:27:12,742 INFO L681 BuchiCegarLoop]: Abstraction has 9 states and 10 transitions. [2021-12-06 22:27:12,742 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9 states and 10 transitions. [2021-12-06 22:27:12,742 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9 to 7. [2021-12-06 22:27:12,743 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7 states, 7 states have (on average 1.1428571428571428) internal successors, (8), 6 states have internal predecessors, (8), 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) [2021-12-06 22:27:12,743 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 8 transitions. [2021-12-06 22:27:12,743 INFO L704 BuchiCegarLoop]: Abstraction has 7 states and 8 transitions. [2021-12-06 22:27:12,743 INFO L587 BuchiCegarLoop]: Abstraction has 7 states and 8 transitions. [2021-12-06 22:27:12,743 INFO L425 BuchiCegarLoop]: ======== Iteration 3============ [2021-12-06 22:27:12,743 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 7 states and 8 transitions. [2021-12-06 22:27:12,743 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2021-12-06 22:27:12,743 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-12-06 22:27:12,744 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-12-06 22:27:12,744 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2021-12-06 22:27:12,744 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1] [2021-12-06 22:27:12,744 INFO L791 eck$LassoCheckResult]: Stem: 124#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int(48, 1, 0, 1);call write~init~int(0, 1, 1, 1);call #Ultimate.allocInit(39, 2);call #Ultimate.allocInit(12, 3); 125#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet5#1, main_#t~post4#1, main_#t~mem6#1, main_#t~post7#1, main_#t~mem8#1, main_~#in~0#1.base, main_~#in~0#1.offset, main_~s~0#1.base, main_~s~0#1.offset, main_~c~0#1, main_~i~0#1, main_~j~0#1, main_~idx_in~0#1;call main_~#in~0#1.base, main_~#in~0#1.offset := #Ultimate.allocOnStack(11);havoc main_~s~0#1.base, main_~s~0#1.offset;havoc main_~c~0#1;havoc main_~i~0#1;havoc main_~j~0#1;havoc main_~idx_in~0#1;main_~i~0#1 := 0; 120#L21-3 assume !!(main_~i~0#1 < 11);call write~int(main_#t~nondet5#1, main_~#in~0#1.base, main_~#in~0#1.offset + main_~i~0#1, 1);havoc main_#t~nondet5#1; 121#L21-2 main_#t~post4#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post4#1;havoc main_#t~post4#1; 122#L21-3 assume !(main_~i~0#1 < 11); 123#L21-4 call write~int(0, main_~#in~0#1.base, 10 + main_~#in~0#1.offset, 1);main_~idx_in~0#1 := 0;main_~s~0#1.base, main_~s~0#1.offset := main_~#in~0#1.base, main_~#in~0#1.offset;main_~i~0#1 := 0;call main_#t~mem6#1 := read~int(main_~#in~0#1.base, main_~#in~0#1.offset + main_~idx_in~0#1, 1);main_~c~0#1 := main_#t~mem6#1;havoc main_#t~mem6#1; 126#L28-2 [2021-12-06 22:27:12,744 INFO L793 eck$LassoCheckResult]: Loop: 126#L28-2 assume !!(48 <= main_~c~0#1 % 256 && main_~c~0#1 % 256 <= 57);main_~j~0#1 := main_~c~0#1 % 256 - 48;main_~i~0#1 := (if (10 * main_~i~0#1 + main_~j~0#1) % 4294967296 % 4294967296 <= 2147483647 then (10 * main_~i~0#1 + main_~j~0#1) % 4294967296 % 4294967296 else (10 * main_~i~0#1 + main_~j~0#1) % 4294967296 % 4294967296 - 4294967296);main_#t~post7#1 := main_~idx_in~0#1;main_~idx_in~0#1 := 1 + main_#t~post7#1;havoc main_#t~post7#1;call main_#t~mem8#1 := read~int(main_~#in~0#1.base, main_~#in~0#1.offset + main_~idx_in~0#1, 1);main_~c~0#1 := main_#t~mem8#1;havoc main_#t~mem8#1; 126#L28-2 [2021-12-06 22:27:12,744 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 22:27:12,744 INFO L85 PathProgramCache]: Analyzing trace with hash 889660429, now seen corresponding path program 1 times [2021-12-06 22:27:12,745 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 22:27:12,745 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2083108704] [2021-12-06 22:27:12,745 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 22:27:12,745 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 22:27:12,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 22:27:12,772 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-06 22:27:12,772 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 22:27:12,773 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2083108704] [2021-12-06 22:27:12,773 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2083108704] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-06 22:27:12,773 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1396720227] [2021-12-06 22:27:12,773 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 22:27:12,773 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-06 22:27:12,773 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39606128-cf00-4212-9be9-95501c920a1c/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 22:27:12,774 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39606128-cf00-4212-9be9-95501c920a1c/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-06 22:27:12,775 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39606128-cf00-4212-9be9-95501c920a1c/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2021-12-06 22:27:12,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 22:27:12,801 INFO L263 TraceCheckSpWp]: Trace formula consists of 71 conjuncts, 3 conjunts are in the unsatisfiable core [2021-12-06 22:27:12,802 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-06 22:27:12,813 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-06 22:27:12,814 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-12-06 22:27:12,828 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-06 22:27:12,828 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1396720227] provided 0 perfect and 2 imperfect interpolant sequences [2021-12-06 22:27:12,828 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-12-06 22:27:12,828 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 7 [2021-12-06 22:27:12,829 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1973068130] [2021-12-06 22:27:12,829 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-12-06 22:27:12,829 INFO L796 eck$LassoCheckResult]: stem already infeasible [2021-12-06 22:27:12,829 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 22:27:12,829 INFO L85 PathProgramCache]: Analyzing trace with hash 56, now seen corresponding path program 2 times [2021-12-06 22:27:12,829 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 22:27:12,829 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [910800951] [2021-12-06 22:27:12,830 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 22:27:12,830 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 22:27:12,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-06 22:27:12,836 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-06 22:27:12,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-06 22:27:12,843 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-06 22:27:12,937 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 22:27:12,937 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-12-06 22:27:12,937 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2021-12-06 22:27:12,938 INFO L87 Difference]: Start difference. First operand 7 states and 8 transitions. cyclomatic complexity: 3 Second operand has 7 states, 7 states have (on average 1.8571428571428572) internal successors, (13), 7 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 22:27:12,966 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 22:27:12,966 INFO L93 Difference]: Finished difference Result 15 states and 16 transitions. [2021-12-06 22:27:12,966 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-12-06 22:27:12,967 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 15 states and 16 transitions. [2021-12-06 22:27:12,968 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2021-12-06 22:27:12,969 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 15 states to 15 states and 16 transitions. [2021-12-06 22:27:12,969 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 7 [2021-12-06 22:27:12,969 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 7 [2021-12-06 22:27:12,969 INFO L73 IsDeterministic]: Start isDeterministic. Operand 15 states and 16 transitions. [2021-12-06 22:27:12,969 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-12-06 22:27:12,969 INFO L681 BuchiCegarLoop]: Abstraction has 15 states and 16 transitions. [2021-12-06 22:27:12,970 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15 states and 16 transitions. [2021-12-06 22:27:12,971 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15 to 13. [2021-12-06 22:27:12,971 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13 states, 13 states have (on average 1.0769230769230769) internal successors, (14), 12 states have internal predecessors, (14), 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) [2021-12-06 22:27:12,971 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 14 transitions. [2021-12-06 22:27:12,971 INFO L704 BuchiCegarLoop]: Abstraction has 13 states and 14 transitions. [2021-12-06 22:27:12,972 INFO L587 BuchiCegarLoop]: Abstraction has 13 states and 14 transitions. [2021-12-06 22:27:12,972 INFO L425 BuchiCegarLoop]: ======== Iteration 4============ [2021-12-06 22:27:12,972 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 13 states and 14 transitions. [2021-12-06 22:27:12,972 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2021-12-06 22:27:12,972 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-12-06 22:27:12,973 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-12-06 22:27:12,973 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [4, 4, 1, 1, 1, 1] [2021-12-06 22:27:12,973 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1] [2021-12-06 22:27:12,973 INFO L791 eck$LassoCheckResult]: Stem: 186#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(39, 2);call #Ultimate.allocInit(12, 3); 187#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet5#1, main_#t~post4#1, main_#t~mem6#1, main_#t~post7#1, main_#t~mem8#1, main_~#in~0#1.base, main_~#in~0#1.offset, main_~s~0#1.base, main_~s~0#1.offset, main_~c~0#1, main_~i~0#1, main_~j~0#1, main_~idx_in~0#1;call main_~#in~0#1.base, main_~#in~0#1.offset := #Ultimate.allocOnStack(11);havoc main_~s~0#1.base, main_~s~0#1.offset;havoc main_~c~0#1;havoc main_~i~0#1;havoc main_~j~0#1;havoc main_~idx_in~0#1;main_~i~0#1 := 0; 182#L21-3 assume !!(main_~i~0#1 < 11);call write~int(main_#t~nondet5#1, main_~#in~0#1.base, main_~#in~0#1.offset + main_~i~0#1, 1);havoc main_#t~nondet5#1; 183#L21-2 main_#t~post4#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post4#1;havoc main_#t~post4#1; 184#L21-3 assume !!(main_~i~0#1 < 11);call write~int(main_#t~nondet5#1, main_~#in~0#1.base, main_~#in~0#1.offset + main_~i~0#1, 1);havoc main_#t~nondet5#1; 185#L21-2 main_#t~post4#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post4#1;havoc main_#t~post4#1; 194#L21-3 assume !!(main_~i~0#1 < 11);call write~int(main_#t~nondet5#1, main_~#in~0#1.base, main_~#in~0#1.offset + main_~i~0#1, 1);havoc main_#t~nondet5#1; 193#L21-2 main_#t~post4#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post4#1;havoc main_#t~post4#1; 192#L21-3 assume !!(main_~i~0#1 < 11);call write~int(main_#t~nondet5#1, main_~#in~0#1.base, main_~#in~0#1.offset + main_~i~0#1, 1);havoc main_#t~nondet5#1; 191#L21-2 main_#t~post4#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post4#1;havoc main_#t~post4#1; 190#L21-3 assume !(main_~i~0#1 < 11); 188#L21-4 call write~int(0, main_~#in~0#1.base, 10 + main_~#in~0#1.offset, 1);main_~idx_in~0#1 := 0;main_~s~0#1.base, main_~s~0#1.offset := main_~#in~0#1.base, main_~#in~0#1.offset;main_~i~0#1 := 0;call main_#t~mem6#1 := read~int(main_~#in~0#1.base, main_~#in~0#1.offset + main_~idx_in~0#1, 1);main_~c~0#1 := main_#t~mem6#1;havoc main_#t~mem6#1; 189#L28-2 [2021-12-06 22:27:12,973 INFO L793 eck$LassoCheckResult]: Loop: 189#L28-2 assume !!(48 <= main_~c~0#1 % 256 && main_~c~0#1 % 256 <= 57);main_~j~0#1 := main_~c~0#1 % 256 - 48;main_~i~0#1 := (if (10 * main_~i~0#1 + main_~j~0#1) % 4294967296 % 4294967296 <= 2147483647 then (10 * main_~i~0#1 + main_~j~0#1) % 4294967296 % 4294967296 else (10 * main_~i~0#1 + main_~j~0#1) % 4294967296 % 4294967296 - 4294967296);main_#t~post7#1 := main_~idx_in~0#1;main_~idx_in~0#1 := 1 + main_#t~post7#1;havoc main_#t~post7#1;call main_#t~mem8#1 := read~int(main_~#in~0#1.base, main_~#in~0#1.offset + main_~idx_in~0#1, 1);main_~c~0#1 := main_#t~mem8#1;havoc main_#t~mem8#1; 189#L28-2 [2021-12-06 22:27:12,974 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 22:27:12,974 INFO L85 PathProgramCache]: Analyzing trace with hash 833936659, now seen corresponding path program 2 times [2021-12-06 22:27:12,974 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 22:27:12,974 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [177406895] [2021-12-06 22:27:12,974 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 22:27:12,974 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 22:27:12,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 22:27:13,025 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 16 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-06 22:27:13,026 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 22:27:13,026 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [177406895] [2021-12-06 22:27:13,026 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [177406895] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-06 22:27:13,026 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1157589458] [2021-12-06 22:27:13,026 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-12-06 22:27:13,026 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-06 22:27:13,027 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39606128-cf00-4212-9be9-95501c920a1c/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 22:27:13,064 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39606128-cf00-4212-9be9-95501c920a1c/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-06 22:27:13,065 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39606128-cf00-4212-9be9-95501c920a1c/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2021-12-06 22:27:13,096 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-12-06 22:27:13,096 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-12-06 22:27:13,097 INFO L263 TraceCheckSpWp]: Trace formula consists of 104 conjuncts, 6 conjunts are in the unsatisfiable core [2021-12-06 22:27:13,097 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-06 22:27:13,119 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 16 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-06 22:27:13,119 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-12-06 22:27:13,166 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 16 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-06 22:27:13,166 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1157589458] provided 0 perfect and 2 imperfect interpolant sequences [2021-12-06 22:27:13,167 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-12-06 22:27:13,167 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7, 7] total 13 [2021-12-06 22:27:13,167 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [355631317] [2021-12-06 22:27:13,167 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-12-06 22:27:13,167 INFO L796 eck$LassoCheckResult]: stem already infeasible [2021-12-06 22:27:13,168 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 22:27:13,168 INFO L85 PathProgramCache]: Analyzing trace with hash 56, now seen corresponding path program 3 times [2021-12-06 22:27:13,168 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 22:27:13,168 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1393678783] [2021-12-06 22:27:13,168 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 22:27:13,169 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 22:27:13,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-06 22:27:13,177 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-06 22:27:13,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-06 22:27:13,185 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-06 22:27:13,250 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39606128-cf00-4212-9be9-95501c920a1c/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Ended with exit code 0 [2021-12-06 22:27:13,290 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 22:27:13,291 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2021-12-06 22:27:13,291 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=78, Invalid=78, Unknown=0, NotChecked=0, Total=156 [2021-12-06 22:27:13,291 INFO L87 Difference]: Start difference. First operand 13 states and 14 transitions. cyclomatic complexity: 3 Second operand has 13 states, 13 states have (on average 1.9230769230769231) internal successors, (25), 13 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 22:27:13,328 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 22:27:13,328 INFO L93 Difference]: Finished difference Result 27 states and 28 transitions. [2021-12-06 22:27:13,328 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-12-06 22:27:13,329 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 27 states and 28 transitions. [2021-12-06 22:27:13,331 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2021-12-06 22:27:13,331 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 27 states to 27 states and 28 transitions. [2021-12-06 22:27:13,331 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 7 [2021-12-06 22:27:13,332 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 7 [2021-12-06 22:27:13,332 INFO L73 IsDeterministic]: Start isDeterministic. Operand 27 states and 28 transitions. [2021-12-06 22:27:13,332 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-12-06 22:27:13,332 INFO L681 BuchiCegarLoop]: Abstraction has 27 states and 28 transitions. [2021-12-06 22:27:13,332 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27 states and 28 transitions. [2021-12-06 22:27:13,333 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27 to 25. [2021-12-06 22:27:13,333 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 25 states, 25 states have (on average 1.04) internal successors, (26), 24 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 22:27:13,334 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25 states to 25 states and 26 transitions. [2021-12-06 22:27:13,334 INFO L704 BuchiCegarLoop]: Abstraction has 25 states and 26 transitions. [2021-12-06 22:27:13,334 INFO L587 BuchiCegarLoop]: Abstraction has 25 states and 26 transitions. [2021-12-06 22:27:13,334 INFO L425 BuchiCegarLoop]: ======== Iteration 5============ [2021-12-06 22:27:13,334 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 25 states and 26 transitions. [2021-12-06 22:27:13,335 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2021-12-06 22:27:13,335 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-12-06 22:27:13,335 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-12-06 22:27:13,336 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [10, 10, 1, 1, 1, 1] [2021-12-06 22:27:13,336 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1] [2021-12-06 22:27:13,336 INFO L791 eck$LassoCheckResult]: Stem: 308#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(39, 2);call #Ultimate.allocInit(12, 3); 309#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet5#1, main_#t~post4#1, main_#t~mem6#1, main_#t~post7#1, main_#t~mem8#1, main_~#in~0#1.base, main_~#in~0#1.offset, main_~s~0#1.base, main_~s~0#1.offset, main_~c~0#1, main_~i~0#1, main_~j~0#1, main_~idx_in~0#1;call main_~#in~0#1.base, main_~#in~0#1.offset := #Ultimate.allocOnStack(11);havoc main_~s~0#1.base, main_~s~0#1.offset;havoc main_~c~0#1;havoc main_~i~0#1;havoc main_~j~0#1;havoc main_~idx_in~0#1;main_~i~0#1 := 0; 304#L21-3 assume !!(main_~i~0#1 < 11);call write~int(main_#t~nondet5#1, main_~#in~0#1.base, main_~#in~0#1.offset + main_~i~0#1, 1);havoc main_#t~nondet5#1; 305#L21-2 main_#t~post4#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post4#1;havoc main_#t~post4#1; 306#L21-3 assume !!(main_~i~0#1 < 11);call write~int(main_#t~nondet5#1, main_~#in~0#1.base, main_~#in~0#1.offset + main_~i~0#1, 1);havoc main_#t~nondet5#1; 307#L21-2 main_#t~post4#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post4#1;havoc main_#t~post4#1; 328#L21-3 assume !!(main_~i~0#1 < 11);call write~int(main_#t~nondet5#1, main_~#in~0#1.base, main_~#in~0#1.offset + main_~i~0#1, 1);havoc main_#t~nondet5#1; 327#L21-2 main_#t~post4#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post4#1;havoc main_#t~post4#1; 326#L21-3 assume !!(main_~i~0#1 < 11);call write~int(main_#t~nondet5#1, main_~#in~0#1.base, main_~#in~0#1.offset + main_~i~0#1, 1);havoc main_#t~nondet5#1; 325#L21-2 main_#t~post4#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post4#1;havoc main_#t~post4#1; 324#L21-3 assume !!(main_~i~0#1 < 11);call write~int(main_#t~nondet5#1, main_~#in~0#1.base, main_~#in~0#1.offset + main_~i~0#1, 1);havoc main_#t~nondet5#1; 323#L21-2 main_#t~post4#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post4#1;havoc main_#t~post4#1; 322#L21-3 assume !!(main_~i~0#1 < 11);call write~int(main_#t~nondet5#1, main_~#in~0#1.base, main_~#in~0#1.offset + main_~i~0#1, 1);havoc main_#t~nondet5#1; 321#L21-2 main_#t~post4#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post4#1;havoc main_#t~post4#1; 320#L21-3 assume !!(main_~i~0#1 < 11);call write~int(main_#t~nondet5#1, main_~#in~0#1.base, main_~#in~0#1.offset + main_~i~0#1, 1);havoc main_#t~nondet5#1; 319#L21-2 main_#t~post4#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post4#1;havoc main_#t~post4#1; 318#L21-3 assume !!(main_~i~0#1 < 11);call write~int(main_#t~nondet5#1, main_~#in~0#1.base, main_~#in~0#1.offset + main_~i~0#1, 1);havoc main_#t~nondet5#1; 317#L21-2 main_#t~post4#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post4#1;havoc main_#t~post4#1; 316#L21-3 assume !!(main_~i~0#1 < 11);call write~int(main_#t~nondet5#1, main_~#in~0#1.base, main_~#in~0#1.offset + main_~i~0#1, 1);havoc main_#t~nondet5#1; 315#L21-2 main_#t~post4#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post4#1;havoc main_#t~post4#1; 314#L21-3 assume !!(main_~i~0#1 < 11);call write~int(main_#t~nondet5#1, main_~#in~0#1.base, main_~#in~0#1.offset + main_~i~0#1, 1);havoc main_#t~nondet5#1; 313#L21-2 main_#t~post4#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post4#1;havoc main_#t~post4#1; 312#L21-3 assume !(main_~i~0#1 < 11); 310#L21-4 call write~int(0, main_~#in~0#1.base, 10 + main_~#in~0#1.offset, 1);main_~idx_in~0#1 := 0;main_~s~0#1.base, main_~s~0#1.offset := main_~#in~0#1.base, main_~#in~0#1.offset;main_~i~0#1 := 0;call main_#t~mem6#1 := read~int(main_~#in~0#1.base, main_~#in~0#1.offset + main_~idx_in~0#1, 1);main_~c~0#1 := main_#t~mem6#1;havoc main_#t~mem6#1; 311#L28-2 [2021-12-06 22:27:13,336 INFO L793 eck$LassoCheckResult]: Loop: 311#L28-2 assume !!(48 <= main_~c~0#1 % 256 && main_~c~0#1 % 256 <= 57);main_~j~0#1 := main_~c~0#1 % 256 - 48;main_~i~0#1 := (if (10 * main_~i~0#1 + main_~j~0#1) % 4294967296 % 4294967296 <= 2147483647 then (10 * main_~i~0#1 + main_~j~0#1) % 4294967296 % 4294967296 else (10 * main_~i~0#1 + main_~j~0#1) % 4294967296 % 4294967296 - 4294967296);main_#t~post7#1 := main_~idx_in~0#1;main_~idx_in~0#1 := 1 + main_#t~post7#1;havoc main_#t~post7#1;call main_#t~mem8#1 := read~int(main_~#in~0#1.base, main_~#in~0#1.offset + main_~idx_in~0#1, 1);main_~c~0#1 := main_#t~mem8#1;havoc main_#t~mem8#1; 311#L28-2 [2021-12-06 22:27:13,336 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 22:27:13,336 INFO L85 PathProgramCache]: Analyzing trace with hash 2127272351, now seen corresponding path program 3 times [2021-12-06 22:27:13,336 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 22:27:13,336 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1533745094] [2021-12-06 22:27:13,336 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 22:27:13,337 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 22:27:13,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 22:27:13,436 INFO L134 CoverageAnalysis]: Checked inductivity of 100 backedges. 0 proven. 100 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-06 22:27:13,436 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 22:27:13,436 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1533745094] [2021-12-06 22:27:13,436 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1533745094] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-06 22:27:13,437 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1279151871] [2021-12-06 22:27:13,437 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2021-12-06 22:27:13,437 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-06 22:27:13,437 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39606128-cf00-4212-9be9-95501c920a1c/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 22:27:13,438 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39606128-cf00-4212-9be9-95501c920a1c/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-06 22:27:13,438 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39606128-cf00-4212-9be9-95501c920a1c/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2021-12-06 22:27:13,515 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 11 check-sat command(s) [2021-12-06 22:27:13,515 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-12-06 22:27:13,516 INFO L263 TraceCheckSpWp]: Trace formula consists of 170 conjuncts, 14 conjunts are in the unsatisfiable core [2021-12-06 22:27:13,517 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-06 22:27:13,559 INFO L134 CoverageAnalysis]: Checked inductivity of 100 backedges. 0 proven. 100 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-06 22:27:13,559 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-12-06 22:27:13,601 INFO L134 CoverageAnalysis]: Checked inductivity of 100 backedges. 0 proven. 100 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-06 22:27:13,602 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1279151871] provided 0 perfect and 2 imperfect interpolant sequences [2021-12-06 22:27:13,602 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-12-06 22:27:13,602 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 13, 13] total 14 [2021-12-06 22:27:13,602 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [440627591] [2021-12-06 22:27:13,602 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-12-06 22:27:13,602 INFO L796 eck$LassoCheckResult]: stem already infeasible [2021-12-06 22:27:13,603 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 22:27:13,603 INFO L85 PathProgramCache]: Analyzing trace with hash 56, now seen corresponding path program 4 times [2021-12-06 22:27:13,603 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 22:27:13,603 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1639783404] [2021-12-06 22:27:13,603 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 22:27:13,603 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 22:27:13,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-06 22:27:13,608 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-06 22:27:13,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-06 22:27:13,613 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-06 22:27:13,688 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 22:27:13,688 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2021-12-06 22:27:13,688 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=91, Invalid=91, Unknown=0, NotChecked=0, Total=182 [2021-12-06 22:27:13,689 INFO L87 Difference]: Start difference. First operand 25 states and 26 transitions. cyclomatic complexity: 3 Second operand has 14 states, 14 states have (on average 1.9285714285714286) internal successors, (27), 14 states have internal predecessors, (27), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 22:27:13,723 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 22:27:13,723 INFO L93 Difference]: Finished difference Result 29 states and 30 transitions. [2021-12-06 22:27:13,723 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-12-06 22:27:13,724 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 29 states and 30 transitions. [2021-12-06 22:27:13,725 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2021-12-06 22:27:13,725 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 29 states to 29 states and 30 transitions. [2021-12-06 22:27:13,725 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 7 [2021-12-06 22:27:13,725 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 7 [2021-12-06 22:27:13,725 INFO L73 IsDeterministic]: Start isDeterministic. Operand 29 states and 30 transitions. [2021-12-06 22:27:13,726 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-12-06 22:27:13,726 INFO L681 BuchiCegarLoop]: Abstraction has 29 states and 30 transitions. [2021-12-06 22:27:13,726 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29 states and 30 transitions. [2021-12-06 22:27:13,727 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29 to 27. [2021-12-06 22:27:13,727 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 27 states, 27 states have (on average 1.037037037037037) internal successors, (28), 26 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 22:27:13,728 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 27 states and 28 transitions. [2021-12-06 22:27:13,728 INFO L704 BuchiCegarLoop]: Abstraction has 27 states and 28 transitions. [2021-12-06 22:27:13,728 INFO L587 BuchiCegarLoop]: Abstraction has 27 states and 28 transitions. [2021-12-06 22:27:13,728 INFO L425 BuchiCegarLoop]: ======== Iteration 6============ [2021-12-06 22:27:13,728 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 27 states and 28 transitions. [2021-12-06 22:27:13,728 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2021-12-06 22:27:13,729 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-12-06 22:27:13,729 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-12-06 22:27:13,729 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [11, 11, 1, 1, 1, 1] [2021-12-06 22:27:13,729 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1] [2021-12-06 22:27:13,729 INFO L791 eck$LassoCheckResult]: Stem: 517#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(39, 2);call #Ultimate.allocInit(12, 3); 518#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet5#1, main_#t~post4#1, main_#t~mem6#1, main_#t~post7#1, main_#t~mem8#1, main_~#in~0#1.base, main_~#in~0#1.offset, main_~s~0#1.base, main_~s~0#1.offset, main_~c~0#1, main_~i~0#1, main_~j~0#1, main_~idx_in~0#1;call main_~#in~0#1.base, main_~#in~0#1.offset := #Ultimate.allocOnStack(11);havoc main_~s~0#1.base, main_~s~0#1.offset;havoc main_~c~0#1;havoc main_~i~0#1;havoc main_~j~0#1;havoc main_~idx_in~0#1;main_~i~0#1 := 0; 513#L21-3 assume !!(main_~i~0#1 < 11);call write~int(main_#t~nondet5#1, main_~#in~0#1.base, main_~#in~0#1.offset + main_~i~0#1, 1);havoc main_#t~nondet5#1; 514#L21-2 main_#t~post4#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post4#1;havoc main_#t~post4#1; 515#L21-3 assume !!(main_~i~0#1 < 11);call write~int(main_#t~nondet5#1, main_~#in~0#1.base, main_~#in~0#1.offset + main_~i~0#1, 1);havoc main_#t~nondet5#1; 516#L21-2 main_#t~post4#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post4#1;havoc main_#t~post4#1; 539#L21-3 assume !!(main_~i~0#1 < 11);call write~int(main_#t~nondet5#1, main_~#in~0#1.base, main_~#in~0#1.offset + main_~i~0#1, 1);havoc main_#t~nondet5#1; 538#L21-2 main_#t~post4#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post4#1;havoc main_#t~post4#1; 537#L21-3 assume !!(main_~i~0#1 < 11);call write~int(main_#t~nondet5#1, main_~#in~0#1.base, main_~#in~0#1.offset + main_~i~0#1, 1);havoc main_#t~nondet5#1; 536#L21-2 main_#t~post4#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post4#1;havoc main_#t~post4#1; 535#L21-3 assume !!(main_~i~0#1 < 11);call write~int(main_#t~nondet5#1, main_~#in~0#1.base, main_~#in~0#1.offset + main_~i~0#1, 1);havoc main_#t~nondet5#1; 534#L21-2 main_#t~post4#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post4#1;havoc main_#t~post4#1; 533#L21-3 assume !!(main_~i~0#1 < 11);call write~int(main_#t~nondet5#1, main_~#in~0#1.base, main_~#in~0#1.offset + main_~i~0#1, 1);havoc main_#t~nondet5#1; 532#L21-2 main_#t~post4#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post4#1;havoc main_#t~post4#1; 531#L21-3 assume !!(main_~i~0#1 < 11);call write~int(main_#t~nondet5#1, main_~#in~0#1.base, main_~#in~0#1.offset + main_~i~0#1, 1);havoc main_#t~nondet5#1; 530#L21-2 main_#t~post4#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post4#1;havoc main_#t~post4#1; 529#L21-3 assume !!(main_~i~0#1 < 11);call write~int(main_#t~nondet5#1, main_~#in~0#1.base, main_~#in~0#1.offset + main_~i~0#1, 1);havoc main_#t~nondet5#1; 528#L21-2 main_#t~post4#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post4#1;havoc main_#t~post4#1; 527#L21-3 assume !!(main_~i~0#1 < 11);call write~int(main_#t~nondet5#1, main_~#in~0#1.base, main_~#in~0#1.offset + main_~i~0#1, 1);havoc main_#t~nondet5#1; 526#L21-2 main_#t~post4#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post4#1;havoc main_#t~post4#1; 525#L21-3 assume !!(main_~i~0#1 < 11);call write~int(main_#t~nondet5#1, main_~#in~0#1.base, main_~#in~0#1.offset + main_~i~0#1, 1);havoc main_#t~nondet5#1; 524#L21-2 main_#t~post4#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post4#1;havoc main_#t~post4#1; 523#L21-3 assume !!(main_~i~0#1 < 11);call write~int(main_#t~nondet5#1, main_~#in~0#1.base, main_~#in~0#1.offset + main_~i~0#1, 1);havoc main_#t~nondet5#1; 522#L21-2 main_#t~post4#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post4#1;havoc main_#t~post4#1; 521#L21-3 assume !(main_~i~0#1 < 11); 520#L21-4 call write~int(0, main_~#in~0#1.base, 10 + main_~#in~0#1.offset, 1);main_~idx_in~0#1 := 0;main_~s~0#1.base, main_~s~0#1.offset := main_~#in~0#1.base, main_~#in~0#1.offset;main_~i~0#1 := 0;call main_#t~mem6#1 := read~int(main_~#in~0#1.base, main_~#in~0#1.offset + main_~idx_in~0#1, 1);main_~c~0#1 := main_#t~mem6#1;havoc main_#t~mem6#1; 519#L28-2 [2021-12-06 22:27:13,729 INFO L793 eck$LassoCheckResult]: Loop: 519#L28-2 assume !!(48 <= main_~c~0#1 % 256 && main_~c~0#1 % 256 <= 57);main_~j~0#1 := main_~c~0#1 % 256 - 48;main_~i~0#1 := (if (10 * main_~i~0#1 + main_~j~0#1) % 4294967296 % 4294967296 <= 2147483647 then (10 * main_~i~0#1 + main_~j~0#1) % 4294967296 % 4294967296 else (10 * main_~i~0#1 + main_~j~0#1) % 4294967296 % 4294967296 - 4294967296);main_#t~post7#1 := main_~idx_in~0#1;main_~idx_in~0#1 := 1 + main_#t~post7#1;havoc main_#t~post7#1;call main_#t~mem8#1 := read~int(main_~#in~0#1.base, main_~#in~0#1.offset + main_~idx_in~0#1, 1);main_~c~0#1 := main_#t~mem8#1;havoc main_#t~mem8#1; 519#L28-2 [2021-12-06 22:27:13,730 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 22:27:13,730 INFO L85 PathProgramCache]: Analyzing trace with hash -95647583, now seen corresponding path program 4 times [2021-12-06 22:27:13,730 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 22:27:13,730 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [695371292] [2021-12-06 22:27:13,730 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 22:27:13,730 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 22:27:13,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-06 22:27:13,753 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-06 22:27:13,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-06 22:27:13,773 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-06 22:27:13,774 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 22:27:13,774 INFO L85 PathProgramCache]: Analyzing trace with hash 56, now seen corresponding path program 5 times [2021-12-06 22:27:13,774 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 22:27:13,774 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1733279526] [2021-12-06 22:27:13,774 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 22:27:13,774 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 22:27:13,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-06 22:27:13,779 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-06 22:27:13,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-06 22:27:13,784 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-06 22:27:13,784 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 22:27:13,784 INFO L85 PathProgramCache]: Analyzing trace with hash 1329892248, now seen corresponding path program 1 times [2021-12-06 22:27:13,784 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 22:27:13,784 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2087858201] [2021-12-06 22:27:13,784 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 22:27:13,785 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 22:27:13,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-06 22:27:13,813 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-06 22:27:13,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-06 22:27:13,847 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-06 22:27:25,538 WARN L227 SmtUtils]: Spent 11.61s on a formula simplification. DAG size of input: 238 DAG size of output: 185 (called from [L 234] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2021-12-06 22:27:27,209 INFO L210 LassoAnalysis]: Preferences: [2021-12-06 22:27:27,209 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-12-06 22:27:27,209 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-12-06 22:27:27,209 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-12-06 22:27:27,209 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2021-12-06 22:27:27,209 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-06 22:27:27,209 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-12-06 22:27:27,210 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-12-06 22:27:27,210 INFO L133 ssoRankerPreferences]: Filename of dumped script: verisec_sendmail_tTflag_arr_one_loop.c_Iteration6_Lasso [2021-12-06 22:27:27,210 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-12-06 22:27:27,210 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-12-06 22:27:27,214 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-06 22:27:27,215 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-06 22:27:28,005 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-06 22:27:28,006 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-06 22:27:28,007 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-06 22:27:28,008 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-06 22:27:28,010 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-06 22:27:28,011 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-06 22:27:28,012 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-06 22:27:28,333 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-12-06 22:27:28,333 INFO L490 LassoAnalysis]: Using template 'affine'. [2021-12-06 22:27:28,334 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-06 22:27:28,334 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39606128-cf00-4212-9be9-95501c920a1c/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 22:27:28,334 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39606128-cf00-4212-9be9-95501c920a1c/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-06 22:27:28,335 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39606128-cf00-4212-9be9-95501c920a1c/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (14)] Waiting until timeout for monitored process [2021-12-06 22:27:28,336 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 [2021-12-06 22:27:28,344 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-06 22:27:28,344 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-12-06 22:27:28,344 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-06 22:27:28,344 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-06 22:27:28,344 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-06 22:27:28,344 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-12-06 22:27:28,345 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-12-06 22:27:28,345 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-06 22:27:28,364 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39606128-cf00-4212-9be9-95501c920a1c/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (14)] Ended with exit code 0 [2021-12-06 22:27:28,365 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-06 22:27:28,365 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39606128-cf00-4212-9be9-95501c920a1c/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 22:27:28,365 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39606128-cf00-4212-9be9-95501c920a1c/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-06 22:27:28,372 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39606128-cf00-4212-9be9-95501c920a1c/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (15)] Waiting until timeout for monitored process [2021-12-06 22:27:28,372 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 [2021-12-06 22:27:28,380 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-06 22:27:28,380 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-06 22:27:28,380 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-06 22:27:28,380 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-06 22:27:28,381 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-12-06 22:27:28,381 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-12-06 22:27:28,384 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-06 22:27:28,403 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39606128-cf00-4212-9be9-95501c920a1c/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (15)] Ended with exit code 0 [2021-12-06 22:27:28,403 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-06 22:27:28,403 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39606128-cf00-4212-9be9-95501c920a1c/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 22:27:28,404 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39606128-cf00-4212-9be9-95501c920a1c/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-06 22:27:28,405 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39606128-cf00-4212-9be9-95501c920a1c/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (16)] Waiting until timeout for monitored process [2021-12-06 22:27:28,405 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 [2021-12-06 22:27:28,412 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-06 22:27:28,413 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-06 22:27:28,413 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-06 22:27:28,413 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-06 22:27:28,414 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-12-06 22:27:28,414 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-12-06 22:27:28,417 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-06 22:27:28,435 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39606128-cf00-4212-9be9-95501c920a1c/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (16)] Ended with exit code 0 [2021-12-06 22:27:28,436 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-06 22:27:28,436 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39606128-cf00-4212-9be9-95501c920a1c/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 22:27:28,436 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39606128-cf00-4212-9be9-95501c920a1c/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-06 22:27:28,437 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39606128-cf00-4212-9be9-95501c920a1c/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (17)] Waiting until timeout for monitored process [2021-12-06 22:27:28,437 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-12-06 22:27:28,445 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-06 22:27:28,445 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-06 22:27:28,445 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-06 22:27:28,445 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-06 22:27:28,446 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-12-06 22:27:28,446 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-12-06 22:27:28,450 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-06 22:27:28,472 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39606128-cf00-4212-9be9-95501c920a1c/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (17)] Ended with exit code 0 [2021-12-06 22:27:28,472 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-06 22:27:28,472 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39606128-cf00-4212-9be9-95501c920a1c/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 22:27:28,473 INFO L229 MonitoredProcess]: Starting monitored process 18 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39606128-cf00-4212-9be9-95501c920a1c/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-06 22:27:28,473 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39606128-cf00-4212-9be9-95501c920a1c/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (18)] Waiting until timeout for monitored process [2021-12-06 22:27:28,474 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 [2021-12-06 22:27:28,481 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-06 22:27:28,481 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-06 22:27:28,481 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-06 22:27:28,481 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-06 22:27:28,482 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-12-06 22:27:28,483 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-12-06 22:27:28,485 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-06 22:27:28,505 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39606128-cf00-4212-9be9-95501c920a1c/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (18)] Ended with exit code 0 [2021-12-06 22:27:28,505 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-06 22:27:28,506 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39606128-cf00-4212-9be9-95501c920a1c/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 22:27:28,506 INFO L229 MonitoredProcess]: Starting monitored process 19 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39606128-cf00-4212-9be9-95501c920a1c/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-06 22:27:28,507 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39606128-cf00-4212-9be9-95501c920a1c/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (19)] Waiting until timeout for monitored process [2021-12-06 22:27:28,507 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 [2021-12-06 22:27:28,514 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-06 22:27:28,514 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-06 22:27:28,515 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-06 22:27:28,515 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-06 22:27:28,516 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-12-06 22:27:28,516 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-12-06 22:27:28,518 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-06 22:27:28,537 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39606128-cf00-4212-9be9-95501c920a1c/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (19)] Forceful destruction successful, exit code 0 [2021-12-06 22:27:28,537 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-06 22:27:28,538 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39606128-cf00-4212-9be9-95501c920a1c/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 22:27:28,538 INFO L229 MonitoredProcess]: Starting monitored process 20 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39606128-cf00-4212-9be9-95501c920a1c/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-06 22:27:28,539 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39606128-cf00-4212-9be9-95501c920a1c/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (20)] Waiting until timeout for monitored process [2021-12-06 22:27:28,539 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-12-06 22:27:28,547 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-06 22:27:28,547 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-06 22:27:28,547 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-06 22:27:28,547 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-06 22:27:28,548 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-12-06 22:27:28,548 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-12-06 22:27:28,551 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-06 22:27:28,570 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39606128-cf00-4212-9be9-95501c920a1c/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (20)] Forceful destruction successful, exit code 0 [2021-12-06 22:27:28,570 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-06 22:27:28,570 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39606128-cf00-4212-9be9-95501c920a1c/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 22:27:28,571 INFO L229 MonitoredProcess]: Starting monitored process 21 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39606128-cf00-4212-9be9-95501c920a1c/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-06 22:27:28,573 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39606128-cf00-4212-9be9-95501c920a1c/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (21)] Waiting until timeout for monitored process [2021-12-06 22:27:28,573 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 [2021-12-06 22:27:28,581 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-06 22:27:28,581 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-06 22:27:28,581 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-06 22:27:28,581 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-06 22:27:28,582 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-12-06 22:27:28,582 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-12-06 22:27:28,585 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-06 22:27:28,604 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39606128-cf00-4212-9be9-95501c920a1c/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (21)] Ended with exit code 0 [2021-12-06 22:27:28,605 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-06 22:27:28,605 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39606128-cf00-4212-9be9-95501c920a1c/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 22:27:28,605 INFO L229 MonitoredProcess]: Starting monitored process 22 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39606128-cf00-4212-9be9-95501c920a1c/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-06 22:27:28,606 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39606128-cf00-4212-9be9-95501c920a1c/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (22)] Waiting until timeout for monitored process [2021-12-06 22:27:28,607 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 [2021-12-06 22:27:28,614 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-06 22:27:28,614 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-06 22:27:28,614 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-06 22:27:28,614 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-06 22:27:28,616 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-12-06 22:27:28,617 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-12-06 22:27:28,622 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2021-12-06 22:27:28,635 INFO L443 ModelExtractionUtils]: Simplification made 10 calls to the SMT solver. [2021-12-06 22:27:28,635 INFO L444 ModelExtractionUtils]: 3 out of 16 variables were initially zero. Simplification set additionally 10 variables to zero. [2021-12-06 22:27:28,635 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-06 22:27:28,635 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39606128-cf00-4212-9be9-95501c920a1c/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 22:27:28,636 INFO L229 MonitoredProcess]: Starting monitored process 23 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39606128-cf00-4212-9be9-95501c920a1c/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-06 22:27:28,637 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39606128-cf00-4212-9be9-95501c920a1c/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (23)] Waiting until timeout for monitored process [2021-12-06 22:27:28,637 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2021-12-06 22:27:28,645 INFO L438 nArgumentSynthesizer]: Removed 2 redundant supporting invariants from a total of 2. [2021-12-06 22:27:28,645 INFO L513 LassoAnalysis]: Proved termination. [2021-12-06 22:27:28,645 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~idx_in~0#1, v_rep(select #length ULTIMATE.start_main_~#in~0#1.base)_2) = -1*ULTIMATE.start_main_~idx_in~0#1 + 1*v_rep(select #length ULTIMATE.start_main_~#in~0#1.base)_2 Supporting invariants [] [2021-12-06 22:27:28,664 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39606128-cf00-4212-9be9-95501c920a1c/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (22)] Ended with exit code 0 [2021-12-06 22:27:28,697 INFO L297 tatePredicateManager]: 13 out of 14 supporting invariants were superfluous and have been removed [2021-12-06 22:27:28,710 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 22:27:28,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 22:27:28,729 INFO L263 TraceCheckSpWp]: Trace formula consists of 181 conjuncts, 4 conjunts are in the unsatisfiable core [2021-12-06 22:27:28,730 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-06 22:27:28,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 22:27:28,791 INFO L263 TraceCheckSpWp]: Trace formula consists of 18 conjuncts, 6 conjunts are in the unsatisfiable core [2021-12-06 22:27:28,791 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-06 22:27:28,791 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-06 22:27:28,792 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.2 stem predicates 1 loop predicates [2021-12-06 22:27:28,792 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 27 states and 28 transitions. cyclomatic complexity: 3 Second operand has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 3 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 22:27:28,807 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 27 states and 28 transitions. cyclomatic complexity: 3. Second operand has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 3 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 28 states and 29 transitions. Complement of second has 3 states. [2021-12-06 22:27:28,807 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 3 states 2 stem states 0 non-accepting loop states 1 accepting loop states [2021-12-06 22:27:28,808 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 3 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 22:27:28,808 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 7 transitions. [2021-12-06 22:27:28,808 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 7 transitions. Stem has 26 letters. Loop has 1 letters. [2021-12-06 22:27:28,809 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-12-06 22:27:28,809 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 7 transitions. Stem has 27 letters. Loop has 1 letters. [2021-12-06 22:27:28,809 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-12-06 22:27:28,809 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 7 transitions. Stem has 26 letters. Loop has 2 letters. [2021-12-06 22:27:28,809 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-12-06 22:27:28,809 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 28 states and 29 transitions. [2021-12-06 22:27:28,810 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2021-12-06 22:27:28,810 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 28 states to 0 states and 0 transitions. [2021-12-06 22:27:28,810 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2021-12-06 22:27:28,810 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2021-12-06 22:27:28,810 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2021-12-06 22:27:28,810 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-12-06 22:27:28,810 INFO L681 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-12-06 22:27:28,810 INFO L704 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-12-06 22:27:28,810 INFO L587 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-12-06 22:27:28,811 INFO L425 BuchiCegarLoop]: ======== Iteration 7============ [2021-12-06 22:27:28,811 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2021-12-06 22:27:28,811 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2021-12-06 22:27:28,811 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2021-12-06 22:27:28,815 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 06.12 10:27:28 BoogieIcfgContainer [2021-12-06 22:27:28,815 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2021-12-06 22:27:28,815 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-12-06 22:27:28,815 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-12-06 22:27:28,815 INFO L275 PluginConnector]: Witness Printer initialized [2021-12-06 22:27:28,816 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.12 10:27:11" (3/4) ... [2021-12-06 22:27:28,818 INFO L140 WitnessPrinter]: No result that supports witness generation found [2021-12-06 22:27:28,818 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-12-06 22:27:28,819 INFO L158 Benchmark]: Toolchain (without parser) took 18118.30ms. Allocated memory was 119.5MB in the beginning and 184.5MB in the end (delta: 65.0MB). Free memory was 73.5MB in the beginning and 118.7MB in the end (delta: -45.2MB). Peak memory consumption was 18.8MB. Max. memory is 16.1GB. [2021-12-06 22:27:28,819 INFO L158 Benchmark]: CDTParser took 0.15ms. Allocated memory is still 119.5MB. Free memory is still 89.8MB. There was no memory consumed. Max. memory is 16.1GB. [2021-12-06 22:27:28,819 INFO L158 Benchmark]: CACSL2BoogieTranslator took 182.68ms. Allocated memory is still 119.5MB. Free memory was 73.3MB in the beginning and 94.3MB in the end (delta: -21.0MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2021-12-06 22:27:28,819 INFO L158 Benchmark]: Boogie Procedure Inliner took 31.09ms. Allocated memory is still 119.5MB. Free memory was 94.3MB in the beginning and 92.7MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-12-06 22:27:28,820 INFO L158 Benchmark]: Boogie Preprocessor took 20.88ms. Allocated memory is still 119.5MB. Free memory was 92.7MB in the beginning and 91.2MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-12-06 22:27:28,820 INFO L158 Benchmark]: RCFGBuilder took 213.30ms. Allocated memory is still 119.5MB. Free memory was 91.2MB in the beginning and 81.7MB in the end (delta: 9.5MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2021-12-06 22:27:28,820 INFO L158 Benchmark]: BuchiAutomizer took 17663.10ms. Allocated memory was 119.5MB in the beginning and 184.5MB in the end (delta: 65.0MB). Free memory was 81.2MB in the beginning and 118.7MB in the end (delta: -37.5MB). Peak memory consumption was 28.0MB. Max. memory is 16.1GB. [2021-12-06 22:27:28,820 INFO L158 Benchmark]: Witness Printer took 2.72ms. Allocated memory is still 184.5MB. Free memory is still 118.7MB. There was no memory consumed. Max. memory is 16.1GB. [2021-12-06 22:27:28,822 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.15ms. Allocated memory is still 119.5MB. Free memory is still 89.8MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 182.68ms. Allocated memory is still 119.5MB. Free memory was 73.3MB in the beginning and 94.3MB in the end (delta: -21.0MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 31.09ms. Allocated memory is still 119.5MB. Free memory was 94.3MB in the beginning and 92.7MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 20.88ms. Allocated memory is still 119.5MB. Free memory was 92.7MB in the beginning and 91.2MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 213.30ms. Allocated memory is still 119.5MB. Free memory was 91.2MB in the beginning and 81.7MB in the end (delta: 9.5MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * BuchiAutomizer took 17663.10ms. Allocated memory was 119.5MB in the beginning and 184.5MB in the end (delta: 65.0MB). Free memory was 81.2MB in the beginning and 118.7MB in the end (delta: -37.5MB). Peak memory consumption was 28.0MB. Max. memory is 16.1GB. * Witness Printer took 2.72ms. Allocated memory is still 184.5MB. Free memory is still 118.7MB. There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 6 terminating modules (4 trivial, 2 deterministic, 0 nondeterministic). One deterministic module has affine ranking function -2 * i + 21 * unknown-#length-unknown[in] and consists of 5 locations. One deterministic module has affine ranking function unknown-#length-unknown[in] + -1 * idx_in and consists of 3 locations. 4 modules have a trivial ranking function, the largest among these consists of 14 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 17.6s and 7 iterations. TraceHistogramMax:11. Analysis of lassos took 17.1s. Construction of modules took 0.0s. Büchi inclusion checks took 0.3s. Highest rank in rank-based complementation 3. Minimization of det autom 6. Minimization of nondet autom 0. Automata minimization 0.0s AutomataMinimizationTime, 5 MinimizatonAttempts, 8 StatesRemovedByMinimization, 4 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 27 states and ocurred in iteration 5. Nontrivial modules had stage [2, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 42 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 41 mSDsluCounter, 35 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 13 mSDsCounter, 38 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 107 IncrementalHoareTripleChecker+Invalid, 145 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 38 mSolverCounterUnsat, 22 mSDtfsCounter, 107 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown LassoAnalysisResults: nont0 unkn0 SFLI0 SFLT0 conc0 concLT0 SILN0 SILU4 SILI0 SILT0 lasso2 LassoPreprocessingBenchmarks: Lassos: inital204 mio100 ax100 hnf100 lsp103 ukn69 mio100 lsp35 div137 bol100 ite100 ukn100 eq159 hnf75 smp97 dnf192 smp76 tf100 neg100 sie102 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 16ms VariablesStem: 2 VariablesLoop: 0 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 2 MotzkinApplications: 6 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 0 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 0 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.0s - TerminationAnalysisResult: Termination proven Buchi Automizer proved that your program is terminating RESULT: Ultimate proved your program to be correct! [2021-12-06 22:27:28,847 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39606128-cf00-4212-9be9-95501c920a1c/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (23)] Ended with exit code 0 [2021-12-06 22:27:29,059 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39606128-cf00-4212-9be9-95501c920a1c/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Forceful destruction successful, exit code 0 [2021-12-06 22:27:29,248 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39606128-cf00-4212-9be9-95501c920a1c/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Ended with exit code 0 [2021-12-06 22:27:29,454 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39606128-cf00-4212-9be9-95501c920a1c/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Ended with exit code 0 [2021-12-06 22:27:29,637 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39606128-cf00-4212-9be9-95501c920a1c/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE