./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/termination-dietlibc/strchr_short.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 5e519f3a Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b37de5f0-a681-415a-8e23-74b07a905c1d/bin/uautomizer-Dbtcem3rbc/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b37de5f0-a681-415a-8e23-74b07a905c1d/bin/uautomizer-Dbtcem3rbc/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b37de5f0-a681-415a-8e23-74b07a905c1d/bin/uautomizer-Dbtcem3rbc/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b37de5f0-a681-415a-8e23-74b07a905c1d/bin/uautomizer-Dbtcem3rbc/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/termination-dietlibc/strchr_short.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b37de5f0-a681-415a-8e23-74b07a905c1d/bin/uautomizer-Dbtcem3rbc/config/svcomp-Termination-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b37de5f0-a681-415a-8e23-74b07a905c1d/bin/uautomizer-Dbtcem3rbc --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(F end) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash b9f420c703006a20f84c0f072fc483abdc031419ba97e1947a58423e06686a36 --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-5e519f3 [2022-11-02 21:04:17,849 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-02 21:04:17,852 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-02 21:04:17,901 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-02 21:04:17,901 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-02 21:04:17,903 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-02 21:04:17,904 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-02 21:04:17,907 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-02 21:04:17,910 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-02 21:04:17,911 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-02 21:04:17,912 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-02 21:04:17,913 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-02 21:04:17,914 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-02 21:04:17,915 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-02 21:04:17,916 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-02 21:04:17,917 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-02 21:04:17,918 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-02 21:04:17,919 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-02 21:04:17,923 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-02 21:04:17,934 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-02 21:04:17,938 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-02 21:04:17,939 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-02 21:04:17,941 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-02 21:04:17,942 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-02 21:04:17,946 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-02 21:04:17,946 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-02 21:04:17,947 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-02 21:04:17,948 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-02 21:04:17,949 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-02 21:04:17,950 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-02 21:04:17,950 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-02 21:04:17,951 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-02 21:04:17,953 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-02 21:04:17,954 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-02 21:04:17,955 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-02 21:04:17,955 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-02 21:04:17,956 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-02 21:04:17,956 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-02 21:04:17,957 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-02 21:04:17,958 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-02 21:04:17,959 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-02 21:04:17,960 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b37de5f0-a681-415a-8e23-74b07a905c1d/bin/uautomizer-Dbtcem3rbc/config/svcomp-Termination-64bit-Automizer_Default.epf [2022-11-02 21:04:18,002 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-02 21:04:18,003 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-02 21:04:18,004 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-02 21:04:18,004 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-02 21:04:18,005 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-02 21:04:18,006 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-02 21:04:18,006 INFO L138 SettingsManager]: * Use SBE=true [2022-11-02 21:04:18,006 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2022-11-02 21:04:18,007 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2022-11-02 21:04:18,007 INFO L138 SettingsManager]: * Use old map elimination=false [2022-11-02 21:04:18,008 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2022-11-02 21:04:18,009 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2022-11-02 21:04:18,009 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2022-11-02 21:04:18,009 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-02 21:04:18,009 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-02 21:04:18,009 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-02 21:04:18,010 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-02 21:04:18,010 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2022-11-02 21:04:18,010 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2022-11-02 21:04:18,010 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2022-11-02 21:04:18,011 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-02 21:04:18,011 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2022-11-02 21:04:18,011 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-02 21:04:18,013 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2022-11-02 21:04:18,014 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-02 21:04:18,014 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-02 21:04:18,014 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-02 21:04:18,014 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-02 21:04:18,016 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2022-11-02 21:04:18,016 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_b37de5f0-a681-415a-8e23-74b07a905c1d/bin/uautomizer-Dbtcem3rbc/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b37de5f0-a681-415a-8e23-74b07a905c1d/bin/uautomizer-Dbtcem3rbc Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> b9f420c703006a20f84c0f072fc483abdc031419ba97e1947a58423e06686a36 [2022-11-02 21:04:18,306 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-02 21:04:18,345 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-02 21:04:18,348 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-02 21:04:18,350 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-02 21:04:18,351 INFO L275 PluginConnector]: CDTParser initialized [2022-11-02 21:04:18,353 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b37de5f0-a681-415a-8e23-74b07a905c1d/bin/uautomizer-Dbtcem3rbc/../../sv-benchmarks/c/termination-dietlibc/strchr_short.i [2022-11-02 21:04:18,450 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b37de5f0-a681-415a-8e23-74b07a905c1d/bin/uautomizer-Dbtcem3rbc/data/ae9a080dd/62eef832dc5b43f1b27be999b93256c0/FLAG104528c03 [2022-11-02 21:04:18,956 INFO L306 CDTParser]: Found 1 translation units. [2022-11-02 21:04:18,957 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b37de5f0-a681-415a-8e23-74b07a905c1d/sv-benchmarks/c/termination-dietlibc/strchr_short.i [2022-11-02 21:04:18,984 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b37de5f0-a681-415a-8e23-74b07a905c1d/bin/uautomizer-Dbtcem3rbc/data/ae9a080dd/62eef832dc5b43f1b27be999b93256c0/FLAG104528c03 [2022-11-02 21:04:19,258 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b37de5f0-a681-415a-8e23-74b07a905c1d/bin/uautomizer-Dbtcem3rbc/data/ae9a080dd/62eef832dc5b43f1b27be999b93256c0 [2022-11-02 21:04:19,261 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-02 21:04:19,262 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-02 21:04:19,269 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-02 21:04:19,269 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-02 21:04:19,273 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-02 21:04:19,274 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.11 09:04:19" (1/1) ... [2022-11-02 21:04:19,278 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4f403bbf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 09:04:19, skipping insertion in model container [2022-11-02 21:04:19,278 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.11 09:04:19" (1/1) ... [2022-11-02 21:04:19,286 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-02 21:04:19,335 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-02 21:04:19,700 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-02 21:04:19,721 INFO L203 MainTranslator]: Completed pre-run [2022-11-02 21:04:19,797 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-02 21:04:19,835 INFO L208 MainTranslator]: Completed translation [2022-11-02 21:04:19,836 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 09:04:19 WrapperNode [2022-11-02 21:04:19,836 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-02 21:04:19,837 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-02 21:04:19,837 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-02 21:04:19,837 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-02 21:04:19,845 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 09:04:19" (1/1) ... [2022-11-02 21:04:19,873 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 09:04:19" (1/1) ... [2022-11-02 21:04:19,903 INFO L138 Inliner]: procedures = 113, calls = 9, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 47 [2022-11-02 21:04:19,904 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-02 21:04:19,905 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-02 21:04:19,905 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-02 21:04:19,905 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-02 21:04:19,917 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 09:04:19" (1/1) ... [2022-11-02 21:04:19,917 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 09:04:19" (1/1) ... [2022-11-02 21:04:19,936 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 09:04:19" (1/1) ... [2022-11-02 21:04:19,937 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 09:04:19" (1/1) ... [2022-11-02 21:04:19,942 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 09:04:19" (1/1) ... [2022-11-02 21:04:19,945 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 09:04:19" (1/1) ... [2022-11-02 21:04:19,947 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 09:04:19" (1/1) ... [2022-11-02 21:04:19,948 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 09:04:19" (1/1) ... [2022-11-02 21:04:19,962 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-02 21:04:19,962 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-02 21:04:19,963 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-02 21:04:19,963 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-02 21:04:19,966 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 09:04:19" (1/1) ... [2022-11-02 21:04:19,975 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-02 21:04:19,988 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b37de5f0-a681-415a-8e23-74b07a905c1d/bin/uautomizer-Dbtcem3rbc/z3 [2022-11-02 21:04:20,006 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b37de5f0-a681-415a-8e23-74b07a905c1d/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-02 21:04:20,018 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b37de5f0-a681-415a-8e23-74b07a905c1d/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2022-11-02 21:04:20,046 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-02 21:04:20,047 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-02 21:04:20,047 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-02 21:04:20,048 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-02 21:04:20,048 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-02 21:04:20,049 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-02 21:04:20,209 INFO L235 CfgBuilder]: Building ICFG [2022-11-02 21:04:20,211 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-02 21:04:20,449 INFO L276 CfgBuilder]: Performing block encoding [2022-11-02 21:04:20,458 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-02 21:04:20,458 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2022-11-02 21:04:20,460 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.11 09:04:20 BoogieIcfgContainer [2022-11-02 21:04:20,461 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-02 21:04:20,463 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2022-11-02 21:04:20,463 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2022-11-02 21:04:20,478 INFO L275 PluginConnector]: BuchiAutomizer initialized [2022-11-02 21:04:20,481 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-11-02 21:04:20,482 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 02.11 09:04:19" (1/3) ... [2022-11-02 21:04:20,488 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@6f872ce2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 02.11 09:04:20, skipping insertion in model container [2022-11-02 21:04:20,488 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-11-02 21:04:20,488 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 09:04:19" (2/3) ... [2022-11-02 21:04:20,489 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@6f872ce2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 02.11 09:04:20, skipping insertion in model container [2022-11-02 21:04:20,489 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-11-02 21:04:20,489 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.11 09:04:20" (3/3) ... [2022-11-02 21:04:20,491 INFO L332 chiAutomizerObserver]: Analyzing ICFG strchr_short.i [2022-11-02 21:04:20,558 INFO L303 stractBuchiCegarLoop]: Interprodecural is true [2022-11-02 21:04:20,559 INFO L304 stractBuchiCegarLoop]: Hoare is false [2022-11-02 21:04:20,559 INFO L305 stractBuchiCegarLoop]: Compute interpolants for ForwardPredicates [2022-11-02 21:04:20,559 INFO L306 stractBuchiCegarLoop]: Backedges is STRAIGHT_LINE [2022-11-02 21:04:20,559 INFO L307 stractBuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2022-11-02 21:04:20,559 INFO L308 stractBuchiCegarLoop]: Difference is false [2022-11-02 21:04:20,560 INFO L309 stractBuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2022-11-02 21:04:20,560 INFO L313 stractBuchiCegarLoop]: ======== Iteration 0 == of CEGAR loop == BuchiAutomatonCegarLoop ======== [2022-11-02 21:04:20,566 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 11 states, 10 states have (on average 1.5) internal successors, (15), 10 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:04:20,589 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2022-11-02 21:04:20,590 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-11-02 21:04:20,590 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-11-02 21:04:20,596 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1] [2022-11-02 21:04:20,596 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1] [2022-11-02 21:04:20,601 INFO L335 stractBuchiCegarLoop]: ======== Iteration 1 ============ [2022-11-02 21:04:20,601 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 11 states, 10 states have (on average 1.5) internal successors, (15), 10 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:04:20,604 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2022-11-02 21:04:20,605 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-11-02 21:04:20,605 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-11-02 21:04:20,605 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1] [2022-11-02 21:04:20,606 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1] [2022-11-02 21:04:20,615 INFO L748 eck$LassoCheckResult]: Stem: 3#ULTIMATE.startENTRYtrue assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier; 6#L-1true assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet5#1, main_#t~malloc6#1.base, main_#t~malloc6#1.offset, main_#t~nondet7#1, main_#t~ret8#1.base, main_#t~ret8#1.offset, main_~in_len~0#1, main_~in~0#1.base, main_~in~0#1.offset, main_~the_int~0#1;main_~in_len~0#1 := main_#t~nondet5#1;havoc main_#t~nondet5#1; 9#L516true assume !(main_~in_len~0#1 < 1);call main_#t~malloc6#1.base, main_#t~malloc6#1.offset := #Ultimate.allocOnStack(main_~in_len~0#1 % 18446744073709551616);main_~in~0#1.base, main_~in~0#1.offset := main_#t~malloc6#1.base, main_#t~malloc6#1.offset;call write~int(0, main_~in~0#1.base, main_~in~0#1.offset + (main_~in_len~0#1 - 1), 1);main_~the_int~0#1 := main_#t~nondet7#1;havoc main_#t~nondet7#1;assume { :begin_inline_strchr } true;strchr_#in~t#1.base, strchr_#in~t#1.offset, strchr_#in~c#1 := main_~in~0#1.base, main_~in~0#1.offset, main_~the_int~0#1;havoc strchr_#res#1.base, strchr_#res#1.offset;havoc strchr_#t~mem2#1, strchr_#t~mem3#1, strchr_#t~pre4#1.base, strchr_#t~pre4#1.offset, strchr_~t#1.base, strchr_~t#1.offset, strchr_~c#1, strchr_~ch~0#1;strchr_~t#1.base, strchr_~t#1.offset := strchr_#in~t#1.base, strchr_#in~t#1.offset;strchr_~c#1 := strchr_#in~c#1;havoc strchr_~ch~0#1;strchr_~ch~0#1 := (if strchr_~c#1 % 256 <= 127 then strchr_~c#1 % 256 else strchr_~c#1 % 256 - 256); 5#L509-2true [2022-11-02 21:04:20,616 INFO L750 eck$LassoCheckResult]: Loop: 5#L509-2true assume !false;call strchr_#t~mem2#1 := read~int(strchr_~t#1.base, strchr_~t#1.offset, 1); 11#L510true assume !(strchr_#t~mem2#1 == strchr_~ch~0#1);havoc strchr_#t~mem2#1;call strchr_#t~mem3#1 := read~int(strchr_~t#1.base, strchr_~t#1.offset, 1); 8#L510-2true assume !(0 == strchr_#t~mem3#1);havoc strchr_#t~mem3#1;strchr_#t~pre4#1.base, strchr_#t~pre4#1.offset := strchr_~t#1.base, 1 + strchr_~t#1.offset;strchr_~t#1.base, strchr_~t#1.offset := strchr_~t#1.base, 1 + strchr_~t#1.offset;havoc strchr_#t~pre4#1.base, strchr_#t~pre4#1.offset; 5#L509-2true [2022-11-02 21:04:20,623 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 21:04:20,623 INFO L85 PathProgramCache]: Analyzing trace with hash 29860, now seen corresponding path program 1 times [2022-11-02 21:04:20,634 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 21:04:20,634 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [754666081] [2022-11-02 21:04:20,635 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 21:04:20,635 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 21:04:20,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-02 21:04:20,782 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-02 21:04:20,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-02 21:04:20,833 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-02 21:04:20,836 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 21:04:20,837 INFO L85 PathProgramCache]: Analyzing trace with hash 44851, now seen corresponding path program 1 times [2022-11-02 21:04:20,837 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 21:04:20,837 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1907075770] [2022-11-02 21:04:20,838 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 21:04:20,838 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 21:04:20,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-02 21:04:20,850 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-02 21:04:20,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-02 21:04:20,862 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-02 21:04:20,864 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 21:04:20,864 INFO L85 PathProgramCache]: Analyzing trace with hash 889574320, now seen corresponding path program 1 times [2022-11-02 21:04:20,865 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 21:04:20,865 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [835240212] [2022-11-02 21:04:20,865 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 21:04:20,866 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 21:04:20,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-02 21:04:20,939 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-02 21:04:21,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-02 21:04:21,026 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-02 21:04:21,836 INFO L210 LassoAnalysis]: Preferences: [2022-11-02 21:04:21,837 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-11-02 21:04:21,837 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-11-02 21:04:21,837 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-11-02 21:04:21,837 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2022-11-02 21:04:21,838 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-02 21:04:21,838 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-11-02 21:04:21,838 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-11-02 21:04:21,838 INFO L133 ssoRankerPreferences]: Filename of dumped script: strchr_short.i_Iteration1_Lasso [2022-11-02 21:04:21,838 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-11-02 21:04:21,838 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-11-02 21:04:21,861 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-02 21:04:21,872 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-02 21:04:21,875 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-02 21:04:21,878 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-02 21:04:21,883 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-02 21:04:21,887 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-02 21:04:21,890 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-02 21:04:21,894 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-02 21:04:21,897 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-02 21:04:21,900 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-02 21:04:22,376 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-02 21:04:22,381 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-02 21:04:22,384 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-02 21:04:22,388 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-02 21:04:23,106 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-11-02 21:04:23,111 INFO L490 LassoAnalysis]: Using template 'affine'. [2022-11-02 21:04:23,113 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-02 21:04:23,113 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b37de5f0-a681-415a-8e23-74b07a905c1d/bin/uautomizer-Dbtcem3rbc/z3 [2022-11-02 21:04:23,118 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b37de5f0-a681-415a-8e23-74b07a905c1d/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-02 21:04:23,126 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 [2022-11-02 21:04:23,139 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b37de5f0-a681-415a-8e23-74b07a905c1d/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Waiting until timeout for monitored process [2022-11-02 21:04:23,140 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-02 21:04:23,140 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-11-02 21:04:23,141 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-02 21:04:23,141 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-02 21:04:23,141 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-02 21:04:23,147 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-11-02 21:04:23,147 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-11-02 21:04:23,161 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-11-02 21:04:23,196 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b37de5f0-a681-415a-8e23-74b07a905c1d/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Forceful destruction successful, exit code 0 [2022-11-02 21:04:23,197 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-02 21:04:23,197 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b37de5f0-a681-415a-8e23-74b07a905c1d/bin/uautomizer-Dbtcem3rbc/z3 [2022-11-02 21:04:23,200 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b37de5f0-a681-415a-8e23-74b07a905c1d/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-02 21:04:23,202 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b37de5f0-a681-415a-8e23-74b07a905c1d/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Waiting until timeout for monitored process [2022-11-02 21:04:23,203 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2022-11-02 21:04:23,217 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-02 21:04:23,217 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-11-02 21:04:23,217 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-02 21:04:23,218 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-02 21:04:23,218 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-02 21:04:23,220 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-11-02 21:04:23,220 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-11-02 21:04:23,231 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-11-02 21:04:23,268 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b37de5f0-a681-415a-8e23-74b07a905c1d/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Forceful destruction successful, exit code 0 [2022-11-02 21:04:23,269 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-02 21:04:23,269 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b37de5f0-a681-415a-8e23-74b07a905c1d/bin/uautomizer-Dbtcem3rbc/z3 [2022-11-02 21:04:23,270 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b37de5f0-a681-415a-8e23-74b07a905c1d/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-02 21:04:23,273 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b37de5f0-a681-415a-8e23-74b07a905c1d/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Waiting until timeout for monitored process [2022-11-02 21:04:23,274 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 [2022-11-02 21:04:23,286 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-02 21:04:23,286 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-11-02 21:04:23,287 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-02 21:04:23,287 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-02 21:04:23,287 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-02 21:04:23,287 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-11-02 21:04:23,288 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-11-02 21:04:23,297 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-11-02 21:04:23,338 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b37de5f0-a681-415a-8e23-74b07a905c1d/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Forceful destruction successful, exit code 0 [2022-11-02 21:04:23,338 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-02 21:04:23,338 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b37de5f0-a681-415a-8e23-74b07a905c1d/bin/uautomizer-Dbtcem3rbc/z3 [2022-11-02 21:04:23,340 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b37de5f0-a681-415a-8e23-74b07a905c1d/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-02 21:04:23,345 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 [2022-11-02 21:04:23,359 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b37de5f0-a681-415a-8e23-74b07a905c1d/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Waiting until timeout for monitored process [2022-11-02 21:04:23,360 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-02 21:04:23,360 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-02 21:04:23,360 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-02 21:04:23,360 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-02 21:04:23,365 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2022-11-02 21:04:23,366 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2022-11-02 21:04:23,377 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-11-02 21:04:23,410 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b37de5f0-a681-415a-8e23-74b07a905c1d/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Forceful destruction successful, exit code 0 [2022-11-02 21:04:23,410 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-02 21:04:23,411 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b37de5f0-a681-415a-8e23-74b07a905c1d/bin/uautomizer-Dbtcem3rbc/z3 [2022-11-02 21:04:23,412 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b37de5f0-a681-415a-8e23-74b07a905c1d/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-02 21:04:23,413 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b37de5f0-a681-415a-8e23-74b07a905c1d/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Waiting until timeout for monitored process [2022-11-02 21:04:23,417 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 [2022-11-02 21:04:23,430 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-02 21:04:23,431 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-11-02 21:04:23,431 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-02 21:04:23,431 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-02 21:04:23,431 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-02 21:04:23,432 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-11-02 21:04:23,432 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-11-02 21:04:23,449 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-11-02 21:04:23,489 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b37de5f0-a681-415a-8e23-74b07a905c1d/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Forceful destruction successful, exit code 0 [2022-11-02 21:04:23,489 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-02 21:04:23,489 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b37de5f0-a681-415a-8e23-74b07a905c1d/bin/uautomizer-Dbtcem3rbc/z3 [2022-11-02 21:04:23,491 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b37de5f0-a681-415a-8e23-74b07a905c1d/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-02 21:04:23,500 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 [2022-11-02 21:04:23,512 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-02 21:04:23,512 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-11-02 21:04:23,512 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-02 21:04:23,512 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-02 21:04:23,512 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-02 21:04:23,513 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b37de5f0-a681-415a-8e23-74b07a905c1d/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Waiting until timeout for monitored process [2022-11-02 21:04:23,513 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-11-02 21:04:23,513 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-11-02 21:04:23,529 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-11-02 21:04:23,567 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b37de5f0-a681-415a-8e23-74b07a905c1d/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Forceful destruction successful, exit code 0 [2022-11-02 21:04:23,568 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-02 21:04:23,568 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b37de5f0-a681-415a-8e23-74b07a905c1d/bin/uautomizer-Dbtcem3rbc/z3 [2022-11-02 21:04:23,569 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b37de5f0-a681-415a-8e23-74b07a905c1d/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-02 21:04:23,577 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 [2022-11-02 21:04:23,590 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-02 21:04:23,590 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-02 21:04:23,590 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-02 21:04:23,590 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-02 21:04:23,596 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2022-11-02 21:04:23,596 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2022-11-02 21:04:23,599 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b37de5f0-a681-415a-8e23-74b07a905c1d/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Waiting until timeout for monitored process [2022-11-02 21:04:23,617 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-11-02 21:04:23,652 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b37de5f0-a681-415a-8e23-74b07a905c1d/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Forceful destruction successful, exit code 0 [2022-11-02 21:04:23,653 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-02 21:04:23,653 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b37de5f0-a681-415a-8e23-74b07a905c1d/bin/uautomizer-Dbtcem3rbc/z3 [2022-11-02 21:04:23,654 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b37de5f0-a681-415a-8e23-74b07a905c1d/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-02 21:04:23,655 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b37de5f0-a681-415a-8e23-74b07a905c1d/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Waiting until timeout for monitored process [2022-11-02 21:04:23,656 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 [2022-11-02 21:04:23,666 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-02 21:04:23,666 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-11-02 21:04:23,666 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-02 21:04:23,666 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-02 21:04:23,666 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-02 21:04:23,669 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-11-02 21:04:23,669 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-11-02 21:04:23,679 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-11-02 21:04:23,701 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b37de5f0-a681-415a-8e23-74b07a905c1d/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Forceful destruction successful, exit code 0 [2022-11-02 21:04:23,701 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-02 21:04:23,702 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b37de5f0-a681-415a-8e23-74b07a905c1d/bin/uautomizer-Dbtcem3rbc/z3 [2022-11-02 21:04:23,702 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b37de5f0-a681-415a-8e23-74b07a905c1d/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-02 21:04:23,704 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b37de5f0-a681-415a-8e23-74b07a905c1d/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Waiting until timeout for monitored process [2022-11-02 21:04:23,704 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 [2022-11-02 21:04:23,715 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-02 21:04:23,715 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-11-02 21:04:23,715 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-02 21:04:23,715 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-02 21:04:23,715 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-02 21:04:23,716 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-11-02 21:04:23,716 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-11-02 21:04:23,717 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-11-02 21:04:23,741 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b37de5f0-a681-415a-8e23-74b07a905c1d/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Forceful destruction successful, exit code 0 [2022-11-02 21:04:23,742 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-02 21:04:23,742 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b37de5f0-a681-415a-8e23-74b07a905c1d/bin/uautomizer-Dbtcem3rbc/z3 [2022-11-02 21:04:23,743 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b37de5f0-a681-415a-8e23-74b07a905c1d/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-02 21:04:23,744 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b37de5f0-a681-415a-8e23-74b07a905c1d/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Waiting until timeout for monitored process [2022-11-02 21:04:23,746 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 [2022-11-02 21:04:23,757 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-02 21:04:23,757 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-02 21:04:23,757 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-02 21:04:23,757 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-02 21:04:23,768 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2022-11-02 21:04:23,768 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2022-11-02 21:04:23,810 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-11-02 21:04:23,849 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b37de5f0-a681-415a-8e23-74b07a905c1d/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Forceful destruction successful, exit code 0 [2022-11-02 21:04:23,849 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-02 21:04:23,849 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b37de5f0-a681-415a-8e23-74b07a905c1d/bin/uautomizer-Dbtcem3rbc/z3 [2022-11-02 21:04:23,850 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b37de5f0-a681-415a-8e23-74b07a905c1d/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-02 21:04:23,857 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b37de5f0-a681-415a-8e23-74b07a905c1d/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Waiting until timeout for monitored process [2022-11-02 21:04:23,857 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 [2022-11-02 21:04:23,871 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-02 21:04:23,871 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-02 21:04:23,872 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-02 21:04:23,872 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-02 21:04:23,883 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2022-11-02 21:04:23,883 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2022-11-02 21:04:23,907 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2022-11-02 21:04:23,959 INFO L443 ModelExtractionUtils]: Simplification made 17 calls to the SMT solver. [2022-11-02 21:04:23,959 INFO L444 ModelExtractionUtils]: 12 out of 28 variables were initially zero. Simplification set additionally 13 variables to zero. [2022-11-02 21:04:23,961 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-02 21:04:23,962 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b37de5f0-a681-415a-8e23-74b07a905c1d/bin/uautomizer-Dbtcem3rbc/z3 [2022-11-02 21:04:23,964 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b37de5f0-a681-415a-8e23-74b07a905c1d/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-02 21:04:23,981 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b37de5f0-a681-415a-8e23-74b07a905c1d/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Waiting until timeout for monitored process [2022-11-02 21:04:23,981 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2022-11-02 21:04:24,003 INFO L438 nArgumentSynthesizer]: Removed 2 redundant supporting invariants from a total of 2. [2022-11-02 21:04:24,004 INFO L513 LassoAnalysis]: Proved termination. [2022-11-02 21:04:24,004 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_strchr_~t#1.offset, v_rep(select #length ULTIMATE.start_main_~in~0#1.base)_1) = -1*ULTIMATE.start_strchr_~t#1.offset + 1*v_rep(select #length ULTIMATE.start_main_~in~0#1.base)_1 Supporting invariants [] [2022-11-02 21:04:24,044 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b37de5f0-a681-415a-8e23-74b07a905c1d/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Forceful destruction successful, exit code 0 [2022-11-02 21:04:24,096 INFO L156 tatePredicateManager]: 4 out of 5 supporting invariants were superfluous and have been removed [2022-11-02 21:04:24,151 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b37de5f0-a681-415a-8e23-74b07a905c1d/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Forceful destruction successful, exit code 0 [2022-11-02 21:04:24,159 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 21:04:24,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:04:24,209 INFO L263 TraceCheckSpWp]: Trace formula consists of 51 conjuncts, 6 conjunts are in the unsatisfiable core [2022-11-02 21:04:24,211 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-02 21:04:24,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:04:24,238 INFO L263 TraceCheckSpWp]: Trace formula consists of 22 conjuncts, 8 conjunts are in the unsatisfiable core [2022-11-02 21:04:24,240 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-02 21:04:24,288 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 21:04:24,332 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates [2022-11-02 21:04:24,335 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand has 11 states, 10 states have (on average 1.5) internal successors, (15), 10 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 3 states, 3 states have (on average 2.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:04:24,405 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand has 11 states, 10 states have (on average 1.5) internal successors, (15), 10 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0). Second operand has 3 states, 3 states have (on average 2.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 27 states and 33 transitions. Complement of second has 5 states. [2022-11-02 21:04:24,407 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2022-11-02 21:04:24,414 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 2.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:04:24,416 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 21 transitions. [2022-11-02 21:04:24,417 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 21 transitions. Stem has 3 letters. Loop has 3 letters. [2022-11-02 21:04:24,418 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-11-02 21:04:24,419 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 21 transitions. Stem has 6 letters. Loop has 3 letters. [2022-11-02 21:04:24,419 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-11-02 21:04:24,419 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 21 transitions. Stem has 3 letters. Loop has 6 letters. [2022-11-02 21:04:24,420 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-11-02 21:04:24,421 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 27 states and 33 transitions. [2022-11-02 21:04:24,426 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2022-11-02 21:04:24,429 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 27 states to 0 states and 0 transitions. [2022-11-02 21:04:24,430 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2022-11-02 21:04:24,430 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2022-11-02 21:04:24,431 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2022-11-02 21:04:24,431 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-02 21:04:24,431 INFO L218 hiAutomatonCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-11-02 21:04:24,432 INFO L240 hiAutomatonCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-11-02 21:04:24,432 INFO L428 stractBuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-11-02 21:04:24,432 INFO L335 stractBuchiCegarLoop]: ======== Iteration 2 ============ [2022-11-02 21:04:24,432 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2022-11-02 21:04:24,432 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2022-11-02 21:04:24,433 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2022-11-02 21:04:24,440 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 02.11 09:04:24 BoogieIcfgContainer [2022-11-02 21:04:24,441 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2022-11-02 21:04:24,442 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-02 21:04:24,442 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-02 21:04:24,442 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-02 21:04:24,443 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.11 09:04:20" (3/4) ... [2022-11-02 21:04:24,446 INFO L140 WitnessPrinter]: No result that supports witness generation found [2022-11-02 21:04:24,446 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-02 21:04:24,447 INFO L158 Benchmark]: Toolchain (without parser) took 5184.68ms. Allocated memory was 142.6MB in the beginning and 176.2MB in the end (delta: 33.6MB). Free memory was 107.9MB in the beginning and 134.5MB in the end (delta: -26.6MB). Peak memory consumption was 6.5MB. Max. memory is 16.1GB. [2022-11-02 21:04:24,448 INFO L158 Benchmark]: CDTParser took 0.32ms. Allocated memory is still 83.9MB. Free memory was 54.5MB in the beginning and 54.5MB in the end (delta: 27.4kB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-02 21:04:24,449 INFO L158 Benchmark]: CACSL2BoogieTranslator took 566.99ms. Allocated memory is still 142.6MB. Free memory was 107.6MB in the beginning and 113.1MB in the end (delta: -5.5MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2022-11-02 21:04:24,450 INFO L158 Benchmark]: Boogie Procedure Inliner took 67.51ms. Allocated memory is still 142.6MB. Free memory was 112.6MB in the beginning and 111.0MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-02 21:04:24,450 INFO L158 Benchmark]: Boogie Preprocessor took 56.62ms. Allocated memory is still 142.6MB. Free memory was 111.0MB in the beginning and 109.9MB in the end (delta: 1.1MB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-02 21:04:24,451 INFO L158 Benchmark]: RCFGBuilder took 499.60ms. Allocated memory is still 142.6MB. Free memory was 109.4MB in the beginning and 99.5MB in the end (delta: 9.9MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2022-11-02 21:04:24,452 INFO L158 Benchmark]: BuchiAutomizer took 3977.95ms. Allocated memory was 142.6MB in the beginning and 176.2MB in the end (delta: 33.6MB). Free memory was 99.5MB in the beginning and 134.5MB in the end (delta: -35.0MB). Peak memory consumption was 549.2kB. Max. memory is 16.1GB. [2022-11-02 21:04:24,452 INFO L158 Benchmark]: Witness Printer took 4.97ms. Allocated memory is still 176.2MB. Free memory is still 134.5MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-02 21:04:24,455 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.32ms. Allocated memory is still 83.9MB. Free memory was 54.5MB in the beginning and 54.5MB in the end (delta: 27.4kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 566.99ms. Allocated memory is still 142.6MB. Free memory was 107.6MB in the beginning and 113.1MB in the end (delta: -5.5MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 67.51ms. Allocated memory is still 142.6MB. Free memory was 112.6MB in the beginning and 111.0MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 56.62ms. Allocated memory is still 142.6MB. Free memory was 111.0MB in the beginning and 109.9MB in the end (delta: 1.1MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 499.60ms. Allocated memory is still 142.6MB. Free memory was 109.4MB in the beginning and 99.5MB in the end (delta: 9.9MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * BuchiAutomizer took 3977.95ms. Allocated memory was 142.6MB in the beginning and 176.2MB in the end (delta: 33.6MB). Free memory was 99.5MB in the beginning and 134.5MB in the end (delta: -35.0MB). Peak memory consumption was 549.2kB. Max. memory is 16.1GB. * Witness Printer took 4.97ms. Allocated memory is still 176.2MB. Free memory is still 134.5MB. 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 1 terminating modules (0 trivial, 1 deterministic, 0 nondeterministic). One deterministic module has affine ranking function unknown-#length-unknown[in] + -1 * t and consists of 4 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 3.8s and 2 iterations. TraceHistogramMax:1. Analysis of lassos took 3.4s. Construction of modules took 0.0s. Büchi inclusion checks took 0.2s. Highest rank in rank-based complementation 3. Minimization of det autom 1. Minimization of nondet autom 0. Automata minimization No data available. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had -1 states and ocurred in iteration -1. Nontrivial modules had stage [1, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 12 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 12 mSDsluCounter, 16 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 5 mSDsCounter, 4 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 7 IncrementalHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 4 mSolverCounterUnsat, 11 mSDtfsCounter, 7 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown LassoAnalysisResults: nont0 unkn0 SFLI0 SFLT0 conc0 concLT0 SILN0 SILU0 SILI0 SILT0 lasso1 LassoPreprocessingBenchmarks: Lassos: inital156 mio100 ax100 hnf100 lsp103 ukn90 mio100 lsp40 div159 bol100 ite100 ukn100 eq165 hnf91 smp70 dnf174 smp68 tf100 neg92 sie116 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 38ms VariablesStem: 1 VariablesLoop: 0 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 2 MotzkinApplications: 6 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 0 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 0 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.0s InitialAbstractionConstructionTime: 0.0s - TerminationAnalysisResult: Termination proven Buchi Automizer proved that your program is terminating RESULT: Ultimate proved your program to be correct! [2022-11-02 21:04:24,502 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b37de5f0-a681-415a-8e23-74b07a905c1d/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE